/* roulang page: index */
:root {
            --primary: #2E6BE6;
            --primary-hover: #1F55C4;
            --primary-light: #E8F1FF;
            --red-live: #E5484D;
            --green-online: #10B981;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --footer-bg: #0F1F33;
            --text-main: #0F172A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A98A8;
            --border-color: #E5EBF2;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-img: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
            --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --section-space: 80px;
            --section-space-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-hover);
            outline: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 0.5em;
        }

        h1 {
            font-size: 40px;
            letter-spacing: -0.6px;
        }

        h2 {
            font-size: 30px;
            letter-spacing: -0.4px;
        }

        h3 {
            font-size: 21px;
            font-weight: 600;
            letter-spacing: -0.2px;
        }

        p {
            margin-bottom: 1em;
            color: var(--text-secondary);
        }

        p:last-child {
            margin-bottom: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-cta-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-red {
            background-color: var(--red-live);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
        }

        .btn-red:hover,
        .btn-red:focus {
            background-color: #c73a3f;
            color: #fff;
            box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .badge-live {
            background-color: rgba(229, 72, 77, 0.1);
            color: var(--red-live);
        }

        .badge-live .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--red-live);
            animation: pulse-dot 1.6s ease-in-out infinite;
            display: inline-block;
            flex-shrink: 0;
        }

        .badge-blue {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-green {
            background-color: rgba(16, 185, 129, 0.12);
            color: var(--green-online);
        }

        .badge-gray {
            background-color: #f0f3f7;
            color: var(--text-secondary);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.55;
                transform: scale(1.6);
            }
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
            transition: transform 0.5s ease;
        }

        .card:hover .card-img {
            transform: scale(1.03);
        }

        .card-body {
            padding: 20px 22px;
        }

        .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .grid {
            display: grid;
            gap: 24px;
        }

        .grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 68px;
            display: flex;
            align-items: center;
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-main);
            font-weight: 700;
            font-size: 19px;
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text-main);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: 10px;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s ease;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-text-link {
            color: var(--text-secondary);
            font-size: 13px;
            text-decoration: none;
            padding: 6px 8px;
            transition: color 0.2s;
        }

        .nav-text-link:hover,
        .nav-text-link:focus {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            line-height: 1;
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            background-color: var(--primary-light);
            color: var(--primary);
            outline: none;
        }

        .hero {
            padding-top: 140px;
            padding-bottom: 72px;
            background: linear-gradient(180deg, #fff 0%, var(--bg-page) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: -0.8px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 26px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-visual {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 24px 60px rgba(15, 23, 42, 0.15);
            aspect-ratio: 16/10;
            background-color: #e8edf5;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-overlay-card {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(15, 23, 42, 0.88);
            backdrop-filter: blur(12px);
            border-radius: 14px;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: #fff;
        }

        .hero-overlay-card .live-label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
        }

        .hero-overlay-card .live-label .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--red-live);
            animation: pulse-dot 1.6s infinite;
            display: inline-block;
        }

        .hero-overlay-card .match-info {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
        }

        .status-bar {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
        }

        .status-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        .status-group {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
        }

        .status-pill.green {
            background-color: rgba(16, 185, 129, 0.1);
            color: #0a9a6c;
        }

        .status-pill.blue {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .bento-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .bento-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .bento-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .bento-card.large {
            grid-column: span 2;
            flex-direction: row;
            align-items: stretch;
        }

        .bento-card .bento-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .bento-card.large .bento-img {
            width: 50%;
            aspect-ratio: auto;
            min-height: 240px;
            object-fit: cover;
        }

        .bento-card .bento-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .bento-card.large .bento-body {
            justify-content: center;
            padding: 28px 30px;
        }

        .bento-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .bento-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .stat-number {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            counter-reset: step;
        }

        .flow-step {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            position: relative;
        }

        .flow-step:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .flow-step-number {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
        }

        .flow-step-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .flow-step-text {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .download-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .download-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .download-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .download-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 6px;
        }

        .download-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .download-version {
            font-size: 11px;
            color: var(--text-weak);
        }

        .case-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .case-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .case-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

        .case-body {
            padding: 18px 20px;
        }

        .case-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .case-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 11px;
            font-weight: 500;
            margin-bottom: 8px;
        }

        .case-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            gap: 18px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .news-date {
            min-width: 72px;
            text-align: center;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            background: var(--primary-light);
            border-radius: 10px;
            padding: 8px 10px;
            line-height: 1.4;
        }

        .news-content {
            flex: 1;
        }

        .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 5px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            transition: all 0.2s;
        }

        .news-link:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        .brand-intro {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro h2 {
            margin-bottom: 16px;
        }

        .brand-intro p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .partner-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
            justify-content: center;
        }

        .partner-logo {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px 24px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
            text-align: center;
            min-width: 120px;
        }

        .partner-logo:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.open {
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .faq-question {
            width: 100%;
            padding: 16px 22px;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-family: inherit;
            line-height: 1.5;
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--primary);
            outline: none;
        }

        .faq-icon {
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .guarantee-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
        }

        .guarantee-card:hover {
            shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .guarantee-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .guarantee-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .guarantee-text {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .contact-form {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-input,
        .form-textarea,
        .form-select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-main);
            background: #fff;
            transition: all 0.25s ease;
            font-family: inherit;
        }

        .form-input:focus,
        .form-textarea:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.2);
            outline: none;
        }

        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .resource-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .resource-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 10px;
            background: #fff;
            border: 1px solid var(--border-color);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-main);
            text-decoration: none;
            transition: all 0.25s;
        }

        .resource-link:hover,
        .resource-link:focus {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, 0.15);
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-sitemap-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-title {
                font-size: 34px;
            }

            .bento-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .bento-card.large {
                grid-column: span 2;
                flex-direction: column;
            }

            .bento-card.large .bento-img {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-steps {
                grid-template-columns: repeat(3, 1fr);
            }

            .download-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .case-wall {
                grid-template-columns: repeat(2, 1fr);
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .header {
                height: 60px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
                gap: 4px;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-link {
                width: 100%;
                padding: 10px 14px;
            }

            .nav-right .nav-text-link {
                display: none;
            }

            .nav-right .btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            .section {
                padding: var(--section-space-mobile) 0;
            }

            .section-title {
                font-size: 26px;
            }

            h1 {
                font-size: 32px;
            }

            .hero {
                padding-top: 110px;
                padding-bottom: 48px;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .bento-grid {
                grid-template-columns: 1fr;
            }

            .bento-card.large {
                grid-column: span 1;
                flex-direction: column;
            }

            .bento-card.large .bento-img {
                width: 100%;
                aspect-ratio: 16/9;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .download-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .case-wall {
                grid-template-columns: 1fr;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px 18px;
            }

            .news-date {
                min-width: auto;
                text-align: left;
            }

            .news-link {
                align-self: flex-start;
            }

            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .contact-form {
                padding: 24px 20px;
            }

            .brand-intro {
                padding: 24px 20px;
            }

            .footer .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-title {
                font-size: 24px;
            }

            .hero-subtitle {
                font-size: 14px;
            }

            .section-title {
                font-size: 22px;
            }

            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
            }

            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
        }

            .hero-actions .btn {
                width: 100%;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-number {
                font-size: 26px;
            }

            .flow-steps {
                grid-template-columns: 1fr;
            }

            .download-grid {
                grid-template-columns: 1fr;
            }

            .guarantee-grid {
                grid-template-columns: 1fr;
            }

            .status-bar .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
        --primary: #2E6BE6;
        --primary-hover: #1F55C4;
        --primary-light: #E8F1FF;
        --red-live: #E5484D;
        --green-online: #10B981;
        --bg-page: #F5F8FC;
        --bg-card: #FFFFFF;
        --footer-bg: #0F1F33;
        --text-main: #0F172A;
        --text-secondary: #5B6B7C;
        --text-weak: #8A98A8;
        --border-color: #E5EBF2;
        --radius-card: 16px;
        --radius-btn: 12px;
        --radius-img: 12px;
        --radius-pill: 999px;
        --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
        --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
        --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
        --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        --section-space: 80px;
        --section-space-mobile: 56px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-main);
        background-color: var(--bg-page);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
        border: 0;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color 0.2s ease;
    }
    a:hover,
    a:focus {
        color: var(--primary-hover);
        outline: none;
    }
    button,
    input,
    textarea,
    select {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    .section {
        padding: var(--section-space) 0;
        position: relative;
    }
    .section-alt {
        background-color: #fff;
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    .section-header {
        max-width: 760px;
        margin-bottom: 40px;
    }
    .section-header.centered {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }
    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 14px;
        border-radius: var(--radius-pill);
        background: var(--primary-light);
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 14px;
        letter-spacing: 0.3px;
    }
    .section-title {
        font-size: 32px;
        font-weight: 700;
        line-height: 1.25;
        color: var(--text-main);
        margin-bottom: 14px;
        letter-spacing: -0.3px;
    }
    .section-desc {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.8;
        max-width: 720px;
    }
    .section-header.centered .section-desc {
        margin-left: auto;
        margin-right: auto;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 24px;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: 15px;
        line-height: 1.4;
        cursor: pointer;
        transition: all 0.25s ease;
        border: none;
        text-decoration: none;
        white-space: nowrap;
    }
    .btn-primary {
        background-color: var(--primary);
        color: #fff;
        box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
    }
    .btn-primary:hover,
    .btn-primary:focus {
        background-color: var(--primary-hover);
        color: #fff;
        box-shadow: var(--shadow-cta-hover);
        transform: translateY(-2px);
    }
    .btn-primary:active {
        transform: translateY(0);
        box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
    }
    .btn-outline {
        background-color: transparent;
        color: var(--text-main);
        border: 1px solid var(--border-color);
    }
    .btn-outline:hover,
    .btn-outline:focus {
        border-color: var(--primary);
        color: var(--primary);
        background-color: var(--primary-light);
        transform: translateY(-2px);
    }
    .btn-outline:active {
        transform: translateY(0);
    }
    .btn-red {
        background-color: var(--red-live);
        color: #fff;
        box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
    }
    .btn-red:hover,
    .btn-red:focus {
        background-color: #c73a3f;
        color: #fff;
        box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
        transform: translateY(-2px);
    }
    .btn-sm {
        padding: 8px 16px;
        font-size: 13px;
        border-radius: 10px;
    }
    .btn-lg {
        padding: 14px 30px;
        font-size: 16px;
        border-radius: 14px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 12px;
        border-radius: var(--radius-pill);
        font-size: 12px;
        font-weight: 600;
        line-height: 1.5;
        letter-spacing: 0.2px;
    }
    .badge-live {
        background-color: rgba(229, 72, 77, 0.1);
        color: var(--red-live);
    }
    .badge-live .dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--red-live);
        display: inline-block;
    }
    .badge-blue {
        background-color: var(--primary-light);
        color: var(--primary);
    }
    .badge-green {
        background-color: rgba(16, 185, 129, 0.1);
        color: var(--green-online);
    }
    .badge-gray {
        background-color: #EFF3F8;
        color: var(--text-secondary);
    }

    /* Header / Nav */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 999;
        background: #fff;
        border-bottom: 1px solid var(--border-color);
        height: 68px;
        display: flex;
        align-items: center;
    }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        width: 100%;
    }
    .nav-logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 20px;
        color: var(--text-main);
        letter-spacing: 0.2px;
    }
    .nav-logo:hover {
        color: var(--text-main);
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--primary);
        color: #fff;
        font-size: 16px;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: 6px;
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .nav-link {
        display: inline-flex;
        align-items: center;
        padding: 8px 14px;
        border-radius: 10px;
        color: var(--text-secondary);
        font-size: 15px;
        font-weight: 500;
        transition: all 0.2s ease;
    }
    .nav-link:hover {
        color: var(--primary);
        background: var(--primary-light);
    }
    .nav-link.active {
        color: var(--primary);
        background: var(--primary-light);
        font-weight: 600;
    }
    .nav-right {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .nav-text-link {
        color: var(--text-secondary);
        font-size: 14px;
        font-weight: 500;
    }
    .nav-text-link:hover {
        color: var(--primary);
    }
    .nav-toggle {
        display: none;
        background: none;
        border: 1px solid var(--border-color);
        border-radius: 10px;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        color: var(--text-main);
        font-size: 20px;
        cursor: pointer;
    }
    @media (max-width: 1024px) {
        .nav-menu {
            display: none;
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            background: #fff;
            flex-direction: column;
            align-items: stretch;
            padding: 12px 24px;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 20px 40px rgba(15,23,42,0.08);
        }
        .nav-menu.open {
            display: flex;
        }
        .nav-link {
            padding: 12px 14px;
            width: 100%;
            border-radius: 10px;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .nav-right .nav-text-link {
            display: none;
        }
    }
    @media (max-width: 640px) {
        .header {
            height: 64px;
        }
        .nav-menu {
            top: 64px;
        }
        .nav-logo {
            font-size: 18px;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
        }
        .nav-right .btn-sm {
            padding: 7px 12px;
            font-size: 12px;
        }
    }

    /* Breadcrumb */
    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-weak);
        margin-bottom: 18px;
    }
    .breadcrumb a {
        color: var(--text-secondary);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .sep {
        color: var(--border-color);
    }
    .breadcrumb .current {
        color: var(--text-weak);
    }

    /* Category Hero */
    .category-hero {
        background: linear-gradient(180deg, #fff 0%, #F5F8FC 100%);
        border-bottom: 1px solid var(--border-color);
        padding-top: 108px;
        padding-bottom: 48px;
    }
    .category-hero-inner {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 32px;
        align-items: center;
    }
    .category-hero h1 {
        font-size: 38px;
        font-weight: 700;
        line-height: 1.25;
        letter-spacing: -0.4px;
        margin-bottom: 12px;
        color: var(--text-main);
    }
    .category-hero-desc {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.8;
        max-width: 680px;
    }
    .category-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 20px;
    }
    .category-stat {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: 14px;
        padding: 14px 18px;
        display: flex;
        flex-direction: column;
        min-width: 110px;
    }
    .category-stat .num {
        font-size: 24px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.2;
    }
    .category-stat .label {
        font-size: 13px;
        color: var(--text-weak);
        margin-top: 4px;
    }
    @media (max-width: 768px) {
        .category-hero {
            padding-top: 88px;
            padding-bottom: 36px;
        }
        .category-hero-inner {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .category-hero h1 {
            font-size: 30px;
        }
    }

    /* Card Grid */
    .grid-x {
        display: flex;
        flex-wrap: wrap;
        margin: 0 -12px;
    }
    .cell {
        padding: 0 12px;
        margin-bottom: 24px;
    }
    .cell-4 {
        width: 33.333%;
    }
    .cell-3 {
        width: 25%;
    }
    .cell-6 {
        width: 50%;
    }
    .cell-12 {
        width: 100%;
    }
    @media (max-width: 1024px) {
        .cell-4, .cell-3 {
            width: 50%;
        }
    }
    @media (max-width: 640px) {
        .cell-4, .cell-3, .cell-6 {
            width: 100%;
        }
    }

    /* Tutorial Card */
    .tutorial-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .tutorial-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .tutorial-card .card-img {
        aspect-ratio: 16/9;
        overflow: hidden;
        background: #EAF0F8;
    }
    .tutorial-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .tutorial-card:hover .card-img img {
        transform: scale(1.04);
    }
    .tutorial-card .card-body {
        padding: 20px 20px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .tutorial-card .card-body .badge {
        align-self: flex-start;
        margin-bottom: 10px;
    }
    .tutorial-card h3 {
        font-size: 19px;
        font-weight: 600;
        line-height: 1.4;
        margin-bottom: 8px;
        color: var(--text-main);
    }
    .tutorial-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: 16px;
        flex: 1;
    }
    .tutorial-card .read-more {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .tutorial-card .read-more i {
        transition: transform 0.2s ease;
    }
    .tutorial-card .read-more:hover i {
        transform: translateX(4px);
    }

    /* Section Divider */
    .section-divider {
        border: 0;
        height: 1px;
        background: var(--border-color);
        margin: 0;
    }

    /* Parameter Cards */
    .param-card {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-card);
        padding: 20px;
        box-shadow: var(--shadow-card);
        transition: all 0.3s ease;
    }
    .param-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-3px);
    }
    .param-card .param-title {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .param-card .param-list {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .param-card .param-list li {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px dashed var(--border-color);
        font-size: 14px;
    }
    .param-card .param-list li:last-child {
        border-bottom: none;
    }
    .param-card .param-list .param-label {
        color: var(--text-weak);
    }
    .param-card .param-list .param-value {
        font-weight: 600;
        color: var(--text-main);
    }

    /* Tool Card */
    .tool-card {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-card);
        padding: 24px;
        box-shadow: var(--shadow-card);
        transition: all 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .tool-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-3px);
    }
    .tool-card .tool-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: var(--primary-light);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 14px;
    }
    .tool-card h3 {
        font-size: 18px;
        font-weight: 600;
        margin-bottom: 8px;
        color: var(--text-main);
    }
    .tool-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: 14px;
        flex: 1;
    }
    .tool-card .meta {
        font-size: 12px;
        color: var(--text-weak);
        margin-bottom: 14px;
    }

    /* Trouble Cards */
    .trouble-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .trouble-card {
        background: #fff;
        border: 1px solid var(--border-color);
        border-left: 4px solid var(--red-live);
        border-radius: 14px;
        padding: 20px;
        box-shadow: var(--shadow-card);
        transition: all 0.3s ease;
    }
    .trouble-card:hover {
        box-shadow: var(--shadow-card-hover);
    }
    .trouble-card h3 {
        font-size: 17px;
        font-weight: 600;
        margin-bottom: 8px;
        color: var(--text-main);
    }
    .trouble-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin: 0;
    }
    @media (max-width: 1024px) {
        .trouble-list {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 640px) {
        .trouble-list {
            grid-template-columns: 1fr;
        }
    }

    /* FAQ Accordion */
    .faq-accordion {
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
    }
    .faq-accordion .accordion-title {
        background: #fff;
        border: none;
        border-bottom: 1px solid var(--border-color);
        padding: 18px 22px;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
        transition: background 0.2s ease;
    }
    .faq-accordion .accordion-title:hover {
        background: #F9FBFD;
    }
    .faq-accordion .accordion-title .faq-icon {
        color: var(--primary);
        transition: transform 0.3s ease;
    }
    .faq-accordion .accordion-item.is-active .faq-icon {
        transform: rotate(45deg);
    }
    .faq-accordion .accordion-content {
        background: #F9FBFD;
        border-bottom: 1px solid var(--border-color);
        padding: 18px 22px;
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.8;
        display: none;
    }
    .faq-accordion .accordion-item.is-active .accordion-content {
        display: block;
    }
    .faq-accordion .accordion-item:last-child .accordion-title {
        border-bottom: none;
    }
    .faq-accordion .accordion-item:last-child .accordion-content {
        border-bottom: none;
    }

    /* Subscription CTA */
    .subscribe-section {
        background: var(--footer-bg);
        border-radius: 24px;
        padding: 48px 40px;
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 32px;
        align-items: center;
        color: #fff;
    }
    .subscribe-section h2 {
        font-size: 28px;
        font-weight: 700;
        line-height: 1.3;
        margin-bottom: 12px;
        color: #fff;
    }
    .subscribe-section p {
        font-size: 16px;
        color: rgba(255,255,255,0.75);
        line-height: 1.8;
        margin-bottom: 0;
    }
    .subscribe-form {
        display: flex;
        gap: 12px;
        align-items: center;
    }
    .subscribe-form input {
        flex: 1;
        background: rgba(255,255,255,0.1);
        border: 1px solid rgba(255,255,255,0.2);
        border-radius: 12px;
        padding: 13px 18px;
        color: #fff;
        font-size: 14px;
        outline: none;
        transition: border 0.2s ease, background 0.2s ease;
    }
    .subscribe-form input::placeholder {
        color: rgba(255,255,255,0.55);
    }
    .subscribe-form input:focus {
        border-color: var(--primary);
        background: rgba(255,255,255,0.15);
    }
    .subscribe-form .btn {
        background: var(--primary);
        color: #fff;
        padding: 13px 26px;
        border-radius: 12px;
        font-weight: 600;
        font-size: 15px;
        white-space: nowrap;
    }
    .subscribe-form .btn:hover {
        background: var(--primary-hover);
    }
    @media (max-width: 768px) {
        .subscribe-section {
            grid-template-columns: 1fr;
            padding: 36px 24px;
        }
        .subscribe-form {
            flex-direction: column;
        }
        .subscribe-form .btn {
            width: 100%;
        }
    }

    /* Footer */
    .footer {
        background: var(--footer-bg);
        color: rgba(255,255,255,0.75);
        padding-top: 60px;
        padding-bottom: 20px;
        margin-top: 80px;
    }
    .footer .container:first-child {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
    }
    .footer-brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 20px;
        color: #fff;
        margin-bottom: 14px;
    }
    .footer-brand .logo-icon {
        background: var(--primary);
    }
    .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255,255,255,0.6);
        max-width: 320px;
        margin-bottom: 0;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 16px;
    }
    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul li a {
        color: rgba(255,255,255,0.6);
        font-size: 14px;
        transition: color 0.2s ease;
    }
    .footer-col ul li a:hover {
        color: #fff;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.1);
        margin-top: 40px;
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: rgba(255,255,255,0.55);
    }
    .footer-sitemap-links {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-sitemap-links a {
        color: rgba(255,255,255,0.6);
        font-size: 13px;
    }
    .footer-sitemap-links a:hover {
        color: #fff;
    }
    .footer-sitemap-links span {
        color: rgba(255,255,255,0.3);
    }
    @media (max-width: 1024px) {
        .footer .container:first-child {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 640px) {
        .footer .container:first-child {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

/* roulang page: category1 */
:root {
  --primary: #2E6BE6;
  --primary-hover: #1F55C4;
  --primary-light: #E8F1FF;
  --red-live: #E5484D;
  --green-online: #10B981;
  --bg-page: #F5F8FC;
  --bg-card: #FFFFFF;
  --footer-bg: #0F1F33;
  --text-main: #0F172A;
  --text-secondary: #5B6B7C;
  --text-weak: #8A98A8;
  --border-color: #E5EBF2;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-img: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --section-space: 80px;
  --section-space-mobile: 56px;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover,
a:focus {
  color: var(--primary-hover);
  outline: none;
}
button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.section {
  padding: var(--section-space) 0;
  position: relative;
}
.section-alt {
  background-color: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.section-header {
  max-width: 760px;
  margin-bottom: 40px;
}
.section-header.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 720px;
}
.section-header.centered .section-desc {
  margin-left: auto;
  margin-right: auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
}
.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-hover);
  color: #fff;
  box-shadow: var(--shadow-cta-hover);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
}
.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-outline:hover,
.btn-outline:focus {
  border-color: var(--primary);
  color: var(--primary);
  background-color: var(--primary-light);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-red {
  background-color: var(--red-live);
  color: #fff;
  box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
}
.btn-red:hover,
.btn-red:focus {
  background-color: #c73a3f;
  color: #fff;
  box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 10px;
}
.btn-lg {
  padding: 14px 30px;
  font-size: 16px;
  border-radius: 14px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.2px;
}
.badge-live {
  background-color: rgba(229, 72, 77, 0.1);
  color: var(--red-live);
}
.badge-live .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--red-live);
}
.badge-platform {
  background-color: var(--primary-light);
  color: var(--primary);
}
.badge-version {
  background-color: #eef2f7;
  color: var(--text-secondary);
}
.badge-new {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--green-online);
}
/* 导航 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  height: 68px;
  display: flex;
  align-items: center;
}
.header .container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-main);
  letter-spacing: 0.2px;
}
.nav-logo .logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
}
.nav-logo:hover,
.nav-logo:focus {
  color: var(--text-main);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  list-style: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}
.nav-link:hover,
.nav-link:focus {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.nav-right {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.nav-text-link {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}
.nav-text-link:hover,
.nav-text-link:focus {
  color: var(--primary);
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 22px;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
}
.nav-toggle:hover {
  background: var(--primary-light);
}
@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .header .container {
    flex-wrap: wrap;
  }
  .header nav {
    display: none;
    width: 100%;
    order: 3;
  }
  .header nav.is-open {
    display: block;
  }
  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-top: 1px solid var(--border-color);
    padding: 16px 0;
    margin-top: 8px;
    gap: 4px;
  }
  .nav-link {
    padding: 12px 16px;
    border-radius: 0;
  }
  .nav-right {
    margin-left: auto;
  }
  .header {
    height: auto;
    min-height: 68px;
    padding: 10px 0;
  }
}
@media (max-width: 640px) {
  .nav-right .nav-text-link {
    display: none;
  }
  .nav-right .btn-sm {
    font-size: 12px;
    padding: 7px 12px;
  }
}
/* 面包屑与紧凑页头 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover,
.breadcrumb a:focus {
  color: var(--primary);
}
.breadcrumb span {
  color: var(--text-weak);
}
.compact-header {
  padding: 36px 0;
}
.compact-header-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: center;
}
.compact-header h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.4px;
}
.compact-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 640px;
  margin: 0;
}
.compact-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px 20px;
  min-width: 110px;
  box-shadow: var(--shadow-card);
}
.stat-item strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.stat-item span {
  font-size: 13px;
  color: var(--text-weak);
}
@media (max-width: 768px) {
  .compact-header-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .compact-header h1 {
    font-size: 30px;
  }
  .compact-stats {
    justify-content: flex-start;
  }
}
/* 工具下载列表 */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.tool-cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #eef2f7;
}
.tool-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  border-radius: 0;
}
.tool-card:hover .tool-cover img {
  transform: scale(1.04);
}
.tool-cover .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,0.95);
  box-shadow: 0 2px 8px rgba(15,23,42,0.08);
}
.tool-body {
  padding: 18px;
}
.tool-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.tool-version {
  font-size: 12px;
  color: var(--text-weak);
  font-weight: 500;
}
.tool-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.tool-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
  min-height: 48px;
}
.tool-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}
.tool-date {
  font-size: 12px;
  color: var(--text-weak);
}
@media (max-width: 1023px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}
/* 平台兼容 */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease;
}
.platform-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}
.platform-card .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}
.platform-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.platform-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
@media (max-width: 1023px) {
  .platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .platform-grid {
    grid-template-columns: 1fr;
  }
}
/* 更新日志 */
.changelog {
  border-left: 3px solid var(--primary-light);
  margin-left: 8px;
}
.changelog-item {
  position: relative;
  padding: 0 0 28px 28px;
}
.changelog-item::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}
.changelog-item:last-child {
  padding-bottom: 0;
}
.changelog-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.changelog-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.changelog-version {
  font-size: 12px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}
.changelog-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}
/* 教程摘要 */
.guide-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  gap: 16px;
  box-shadow: var(--shadow-card);
}
.guide-step {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.35;
  line-height: 1.2;
  flex-shrink: 0;
}
.guide-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.guide-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}
.guide-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-weak);
}
@media (max-width: 900px) {
  .guide-list {
    grid-template-columns: 1fr;
  }
}
/* 安全性能 */
.safety-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.safety-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: left;
  box-shadow: var(--shadow-card);
}
.safety-item .icon {
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--green-online);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.safety-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}
.safety-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}
@media (max-width: 1023px) {
  .safety-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .safety-grid {
    grid-template-columns: 1fr;
  }
}
/* FAQ 手风琴 */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
}
.accordion {
  border: 0;
  background: transparent;
}
.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: 14px;
  margin-bottom: 12px;
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.accordion-title {
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  padding: 18px 22px;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.accordion-title:hover,
.accordion-title:focus {
  background: var(--primary-light);
}
.accordion-title .icon {
  color: var(--primary);
  font-size: 18px;
  transition: transform 0.25s ease;
}
.accordion-item.is-active .accordion-title .icon {
  transform: rotate(45deg);
}
.accordion-content {
  padding: 0 22px 18px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  border: 0;
}
.accordion-content p {
  margin: 0;
}
@media (max-width: 640px) {
  .accordion-title {
    padding: 16px 18px;
    font-size: 15px;
  }
  .accordion-content {
    padding: 0 18px 14px;
  }
}
/* 订阅 CTA */
.cta-banner {
  background: var(--footer-bg);
  border-radius: 18px;
  padding: 44px 40px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
  align-items: center;
  color: #fff;
}
.cta-banner h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
  letter-spacing: -0.2px;
}
.cta-banner p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin: 0;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.subscribe-form input {
  flex: 1;
  min-width: 180px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1);
  color: #fff;
  outline: none;
  transition: border 0.2s ease;
}
.subscribe-form input::placeholder {
  color: rgba(255,255,255,0.55);
}
.subscribe-form input:focus {
  border-color: var(--primary);
}
@media (max-width: 768px) {
  .cta-banner {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
  .cta-banner h2 {
    font-size: 22px;
  }
}
/* 页脚 */
.footer {
  background: var(--footer-bg);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 0;
  margin-top: 0;
}
.footer .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
  margin: 0;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.2px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-col a:hover,
.footer-col a:focus {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-sitemap-links {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-sitemap-links a {
  color: rgba(255,255,255,0.65);
}
.footer-sitemap-links a:hover,
.footer-sitemap-links a:focus {
  color: #fff;
}
.footer-sitemap-links span {
  color: rgba(255,255,255,0.35);
}
@media (max-width: 900px) {
  .footer .container {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .footer .container {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category3 */
:root {
            --primary: #2E6BE6;
            --primary-hover: #1F55C4;
            --primary-light: #E8F1FF;
            --red-live: #E5484D;
            --green-online: #10B981;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --footer-bg: #0F1F33;
            --text-main: #0F172A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A98A8;
            --border-color: #E5EBF2;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-img: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
            --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --section-space: 80px;
            --section-space-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-hover);
            outline: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
        }

        h1 {
            font-size: 38px;
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.3px;
        }

        h3 {
            font-size: 21px;
            font-weight: 600;
            letter-spacing: -0.2px;
        }

        h4 {
            font-size: 18px;
            font-weight: 600;
        }

        p {
            margin: 0 0 1em;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
            font-family: var(--font-sans);
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-cta-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-red {
            background-color: var(--red-live);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
        }

        .btn-red:hover,
        .btn-red:focus {
            background-color: #c73a3f;
            color: #fff;
            box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .btn-block {
            width: 100%;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .badge-live {
            background-color: rgba(229, 72, 77, 0.1);
            color: var(--red-live);
        }

        .badge-live .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--red-live);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        .badge-upcoming {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-done {
            background-color: #F1F5F9;
            color: var(--text-weak);
        }

        .badge-green {
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--green-online);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .card-img-wrap {
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
            aspect-ratio: 16/9;
            position: relative;
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .card-body {
            padding: 20px 22px 22px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .card-meta i {
            color: var(--primary);
            margin-right: 4px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s ease;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 68px;
            display: flex;
            align-items: center;
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            text-decoration: none;
            letter-spacing: -0.2px;
            white-space: nowrap;
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            flex-shrink: 0;
        }

        nav {
            display: flex;
            align-items: center;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li {
            margin: 0;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            text-decoration: none;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-text-link {
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            white-space: nowrap;
            transition: color 0.2s ease;
        }

        .nav-text-link:hover,
        .nav-text-link:focus {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background-color 0.2s ease;
        }

        .nav-toggle:hover {
            background-color: var(--primary-light);
        }

        .breadcrumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0 0 14px;
            padding: 0;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .breadcrumbs li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumbs li:not(:last-child)::after {
            content: "/";
            color: #C4CDD8;
            font-size: 12px;
        }

        .breadcrumbs a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .breadcrumbs a:hover,
        .breadcrumbs a:focus {
            color: var(--primary);
        }

        .breadcrumbs span {
            color: var(--text-weak);
        }

        .page-header {
            background: linear-gradient(180deg, #E8F1FF 0%, #F5F8FC 100%);
            padding: 100px 0 48px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .page-header::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(46, 107, 230, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(229, 72, 77, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header .container {
            position: relative;
            z-index: 1;
        }

        .page-header-inner {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: end;
        }

        .page-header-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }

        .page-header-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .page-header-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .page-stat {
            text-align: left;
        }

        .page-stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .page-stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 2px;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-pill);
            padding: 6px 10px;
        }

        .filter-pill {
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            border: none;
            background: none;
            transition: all 0.2s ease;
            white-space: nowrap;
            font-family: var(--font-sans);
        }

        .filter-pill:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .filter-pill.active {
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .event-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .event-list-grid .card:first-child {
            grid-column: span 1;
        }

        .event-card-featured {
            grid-column: span 1;
        }

        @media (min-width: 769px) {
            .event-list-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .event-list-grid .event-card-featured {
                grid-column: span 1;
            }
        }

        .event-date-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            background: #F1F5F9;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
        }

        .event-date-badge i {
            color: var(--primary);
            font-size: 11px;
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .review-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }

        .review-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .review-card:hover .review-card-img img {
            transform: scale(1.05);
        }

        .review-card-body {
            padding: 16px 18px 18px;
        }

        .review-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .review-card-meta {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card-meta .views {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .case-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .case-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .case-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .case-card-tag {
            display: inline-flex;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .case-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .case-card-result {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .case-card-result strong {
            color: var(--primary);
            font-weight: 700;
        }

        .tool-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .tool-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .tool-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 14px;
        }

        .tool-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .tool-card-version {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 10px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .tool-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .tool-card-platforms {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .platform-tag {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-secondary);
            background: #F1F5F9;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .accordion-custom .accordion-item:hover {
            box-shadow: var(--shadow-card-hover);
        }

        .accordion-custom .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            cursor: pointer;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
            font-family: var(--font-sans);
            transition: background-color 0.2s ease;
            text-decoration: none;
        }

        .accordion-custom .accordion-title:hover {
            background-color: #FAFBFD;
            color: var(--primary);
        }

        .accordion-custom .accordion-title::after {
            content: "+";
            font-size: 20px;
            font-weight: 400;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .accordion-custom .accordion-item.is-active .accordion-title::after {
            content: "−";
            color: var(--primary);
        }

        .accordion-custom .accordion-content {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
            background: #FAFBFD;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .accordion-custom .accordion-item.is-active .accordion-content {
            display: block;
            background: #FAFBFD;
        }

        .cta-section {
            background: var(--footer-bg);
            color: #fff;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(46, 107, 230, 0.35) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(229, 72, 77, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 28px;
            backdrop-filter: blur(10px);
        }

        .cta-form label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            display: block;
            margin-bottom: 6px;
        }

        .cta-form input,
        .cta-form textarea,
        .cta-form select {
            width: 100%;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 14px;
            color: #fff;
            margin-bottom: 14px;
            transition: all 0.25s ease;
            font-family: var(--font-sans);
        }

        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus,
        .cta-form textarea:focus,
        .cta-form select:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.3);
        }

        .cta-form select option {
            color: var(--text-main);
            background: #fff;
        }

        .cta-form .btn {
            width: 100%;
            margin-top: 4px;
        }

        .footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
            font-size: 14px;
        }

        .footer > .container:first-child {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo-icon {
            background: var(--primary);
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 8px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-sitemap-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-sitemap-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-sitemap-links a:hover,
        .footer-sitemap-links a:focus {
            color: #fff;
        }

        .footer-sitemap-links span {
            color: rgba(255, 255, 255, 0.3);
        }

        body.menu-open {
            overflow: hidden;
        }

        @media (max-width: 1024px) {
            .nav-text-link {
                display: none;
            }
            .page-header-title {
                font-size: 30px;
            }
            .section-title {
                font-size: 26px;
            }
            .event-list-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .cta-section .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer > .container:first-child {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header {
                height: 60px;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
                z-index: 99;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
                width: 100%;
            }
            .nav-right {
                gap: 8px;
            }
            .nav-right .btn {
                font-size: 12px;
                padding: 8px 14px;
            }
            .page-header {
                padding: 84px 0 36px;
            }
            .page-header-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-header-title {
                font-size: 26px;
            }
            .page-header-stats {
                gap: 18px;
            }
            .filter-bar {
                border-radius: 12px;
                padding: 8px;
                gap: 4px;
            }
            .filter-pill {
                font-size: 12px;
                padding: 5px 12px;
            }
            .section {
                padding: var(--section-space-mobile) 0;
            }
            .section-title {
                font-size: 23px;
            }
            .event-list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-title {
                font-size: 24px;
            }
            .cta-form {
                padding: 20px;
            }
            .footer > .container:first-child {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            h1 {
                font-size: 28px;
            }
            h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-header-title {
                font-size: 22px;
            }
            .page-stat-num {
                font-size: 20px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .card-body {
                padding: 16px;
            }
            .card-title {
                font-size: 16px;
            }
            .nav-right .nav-text-link {
                display: none;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2E6BE6;
            --primary-hover: #1F55C4;
            --primary-light: #E8F1FF;
            --red-live: #E5484D;
            --green-online: #10B981;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --footer-bg: #0F1F33;
            --text-main: #0F172A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A98A8;
            --border-color: #E5EBF2;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-img: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
            --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --section-space: 80px;
            --section-space-mobile: 56px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            outline: none;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: var(--section-space) 0;
            position: relative;
        }
        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            max-width: 760px;
            margin-bottom: 40px;
        }
        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-cta-hover);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }
        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-red {
            background-color: var(--red-live);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
        }
        .btn-red:hover,
        .btn-red:focus {
            background-color: #c73a3f;
            color: #fff;
            box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }
        .badge-live {
            background-color: rgba(229, 72, 77, 0.1);
            color: var(--red-live);
        }
        .badge-live .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--red-live);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.4); }
        }
        .badge-green {
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--green-online);
        }
        .badge-blue {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .badge-gray {
            background-color: #f1f5f9;
            color: var(--text-secondary);
        }
        /* Header & Navigation */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-main);
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text-main);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #1a4fc3 100%);
            color: #fff;
            font-size: 16px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background-color 0.2s ease;
        }
        .nav-toggle:hover {
            background-color: var(--bg-page);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-menu li {
            margin: 0;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-text-link {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-text-link:hover,
        .nav-text-link:focus {
            color: var(--primary);
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-weak);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border-color);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* Category Hero Compact */
        .category-hero {
            padding: 40px 0 32px;
            background: linear-gradient(180deg, #fff 0%, var(--bg-page) 100%);
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero-inner {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin: 0;
            letter-spacing: -0.5px;
        }
        .category-hero .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 780px;
            margin: 0;
        }
        .category-stats {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 8px;
            padding-top: 18px;
            border-top: 1px solid var(--border-color);
        }
        .stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .stat-item .stat-num {
            font-weight: 700;
            color: var(--text-main);
            font-size: 16px;
        }
        .stat-divider {
            width: 1px;
            height: 20px;
            background-color: var(--border-color);
        }
        /* Cards */
        .card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
            transition: transform 0.4s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-badge-top {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .card-badge-top-right {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 2;
        }
        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }
        .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: color 0.2s ease;
        }
        .card-link:hover {
            color: var(--primary-hover);
        }
        .card-link i {
            transition: transform 0.2s ease;
            font-size: 13px;
        }
        .card-link:hover i {
            transform: translateX(3px);
        }
        /* Grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        /* Topic list rows */
        .topic-row {
            display: flex;
            align-items: stretch;
            gap: 20px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            margin-bottom: 18px;
        }
        .topic-row:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .topic-row-img {
            flex: 0 0 280px;
            min-height: 170px;
            overflow: hidden;
            position: relative;
        }
        .topic-row-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-row:hover .topic-row-img img {
            transform: scale(1.04);
        }
        .topic-row-body {
            flex: 1;
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            justify-content: center;
        }
        .topic-row-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0;
            line-height: 1.4;
        }
        .topic-row-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .topic-row-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
        }
        /* Streamer cards */
        .streamer-card {
            text-align: center;
            padding: 24px 20px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .streamer-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .streamer-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            margin: 0 auto 14px;
            overflow: hidden;
            border: 3px solid var(--primary-light);
            background-color: var(--bg-page);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
        }
        .streamer-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .streamer-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 4px;
        }
        .streamer-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 8px;
            font-weight: 500;
        }
        .streamer-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        /* Config cards */
        .config-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: all 0.3s ease;
            height: 100%;
        }
        .config-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .config-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .config-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 6px;
        }
        .config-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* Schedule table-like list */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .schedule-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px 20px;
            transition: all 0.25s ease;
        }
        .schedule-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }
        .schedule-time {
            flex: 0 0 80px;
            font-weight: 700;
            font-size: 15px;
            color: var(--primary);
            text-align: center;
        }
        .schedule-info {
            flex: 1;
        }
        .schedule-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            margin: 0;
        }
        .schedule-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
        }
        .schedule-badge {
            flex-shrink: 0;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(46, 107, 230, 0.1);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--bg-page);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            background-color: var(--primary-light);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            background-color: var(--primary-light);
            border-radius: 10px;
            padding: 14px 18px;
        }
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 48px 0;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-text {
            flex: 1;
            min-width: 280px;
        }
        .cta-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }
        .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        /* Footer */
        .footer {
            background-color: var(--footer-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 0;
        }
        .footer .container:first-child {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #1a4fc3 100%);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li {
            margin: 0;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-sitemap-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-sitemap-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-sitemap-links a:hover {
            color: #fff;
        }
        .footer-sitemap-links span {
            color: rgba(255, 255, 255, 0.3);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-row-img {
                flex: 0 0 220px;
                min-height: 150px;
            }
        }
        @media (max-width: 768px) {
            .header {
                height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: #fff;
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 4px;
                display: none;
                box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
                z-index: 99;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }
            .nav-right {
                gap: 8px;
            }
            .nav-text-link {
                display: none;
            }
            .section {
                padding: var(--section-space-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .grid-3,
            .grid-2,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .topic-row {
                flex-direction: column;
            }
            .topic-row-img {
                flex: 0 0 auto;
                width: 100%;
                min-height: 180px;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-text h2 {
                font-size: 22px;
            }
            .footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .category-stats {
                gap: 14px;
            }
            .stat-divider {
                display: none;
            }
            .schedule-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .schedule-time {
                flex: 0 0 60px;
                font-size: 14px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
            .card-body {
                padding: 16px 18px 18px;
            }
            .topic-row-body {
                padding: 16px 18px;
            }
            .category-stats {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2E6BE6;
            --primary-hover: #1F55C4;
            --primary-light: #E8F1FF;
            --red-live: #E5484D;
            --green-online: #10B981;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --footer-bg: #0F1F33;
            --text-main: #0F172A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A98A8;
            --border-color: #E5EBF2;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-img: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
            --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --section-space: 80px;
            --section-space-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-hover);
            outline: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-cta-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-red {
            background-color: var(--red-live);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
        }

        .btn-red:hover,
        .btn-red:focus {
            background-color: #c73a3f;
            color: #fff;
            box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .badge-live {
            background-color: rgba(229, 72, 77, 0.1);
            color: var(--red-live);
        }

        .badge-live .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--red-live);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        .badge-blue {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-gray {
            background-color: #F0F3F7;
            color: var(--text-secondary);
        }

        .badge-green {
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--green-online);
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.75);
            }
        }

        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: 0 1px 10px rgba(15, 23, 42, 0.04);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.25);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: all 0.2s ease;
            position: relative;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -2px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-text-link {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 8px 6px;
        }

        .nav-text-link:hover,
        .nav-text-link:focus {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            font-size: 18px;
            color: var(--text-main);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .nav-toggle:hover,
        .nav-toggle:focus {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: #C4CFDA;
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        .page-header-compact {
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 36px 0 32px;
            margin-top: 0;
        }

        .page-header-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .page-header-content {
            flex: 1;
            min-width: 280px;
        }

        .page-header-content h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.5px;
        }

        .page-header-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 620px;
        }

        .page-header-stats {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-shrink: 0;
            padding: 18px 22px;
            background: var(--bg-page);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
        }

        .stat-item {
            text-align: center;
            min-width: 80px;
        }

        .stat-item .stat-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
            letter-spacing: -0.3px;
        }

        .stat-item .stat-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
            font-weight: 500;
        }

        .stat-divider {
            width: 1px;
            height: 40px;
            background-color: var(--border-color);
        }

        .news-list-section {
            background-color: var(--bg-page);
        }

        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            transition: all 0.25s ease;
            align-items: flex-start;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #D5E2F5;
        }

        .news-list-img {
            flex-shrink: 0;
            width: 200px;
            height: 124px;
            border-radius: var(--radius-img);
            overflow: hidden;
            background-color: #EDF1F7;
        }

        .news-list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-list-item:hover .news-list-img img {
            transform: scale(1.05);
        }

        .news-list-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .news-list-date {
            font-size: 12px;
            color: var(--text-weak);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-list-date i {
            font-size: 11px;
            color: #B0BCC8;
        }

        .news-list-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
            letter-spacing: -0.2px;
        }

        .news-list-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 2px;
            transition: all 0.2s ease;
            align-self: flex-start;
        }

        .read-more-link i {
            font-size: 11px;
            transition: transform 0.2s ease;
        }

        .read-more-link:hover,
        .read-more-link:focus {
            color: var(--primary-hover);
        }

        .read-more-link:hover i {
            transform: translateX(3px);
        }

        .hot-reads-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .hot-read-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

        .hot-read-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: #D5E2F5;
        }

        .hot-read-img {
            width: 100%;
            height: 160px;
            overflow: hidden;
            background-color: #EDF1F7;
        }

        .hot-read-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hot-read-card:hover .hot-read-img img {
            transform: scale(1.05);
        }

        .hot-read-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .hot-read-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            align-self: flex-start;
        }

        .hot-read-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }

        .hot-read-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .hot-read-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .hot-read-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
            cursor: default;
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.12);
        }

        .tag-pill i {
            font-size: 12px;
            color: var(--text-weak);
        }

        .rss-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }

        .rss-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: #F97316;
            color: #fff;
            font-size: 24px;
            flex-shrink: 0;
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.25);
        }

        .rss-content {
            flex: 1;
            min-width: 220px;
        }

        .rss-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 6px;
        }

        .rss-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .rss-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .help-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .help-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px;
            text-align: center;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-card);
            display: block;
        }

        .help-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .help-card-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            margin: 0 auto 12px;
        }

        .help-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin: 0 0 4px;
        }

        .help-card p {
            font-size: 12px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.5;
        }

        .cta-section {
            background: linear-gradient(135deg, #E8F1FF 0%, #D6E6FF 100%);
            border-radius: 20px;
            padding: 44px 40px;
            text-align: center;
            border: 1px solid #C9DCF5;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            letter-spacing: -0.3px;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 auto 24px;
            max-width: 540px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .footer {
            background-color: var(--footer-bg);
            color: #B8C7DB;
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer .container:first-child {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            font-size: 14px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #9AAEC5;
            max-width: 320px;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.2px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #9AAEC5;
            transition: all 0.2s ease;
        }

        .footer-col ul a:hover,
        .footer-col ul a:focus {
            color: #fff;
            padding-left: 3px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0 24px;
            font-size: 13px;
            color: #7D91A8;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 32px;
        }

        .footer-sitemap-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-sitemap-links a {
            color: #9AAEC5;
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .footer-sitemap-links a:hover,
        .footer-sitemap-links a:focus {
            color: #fff;
        }

        .footer-sitemap-links span {
            color: #5B6F85;
        }

        @media (max-width: 1024px) {
            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px 20px;
                gap: 6px;
                box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
                z-index: 999;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-link {
                width: 100%;
                padding: 10px 14px;
                font-size: 15px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-right .nav-text-link {
                display: none;
            }

            .nav-right {
                margin-left: auto;
            }

            .help-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-space-mobile) 0;
            }

            .page-header-compact {
                padding: 28px 0 24px;
            }

            .page-header-content h1 {
                font-size: 30px;
            }

            .page-header-stats {
                padding: 14px 16px;
                gap: 14px;
            }

            .stat-item .stat-value {
                font-size: 20px;
            }

            .news-list-item {
                flex-direction: column;
                padding: 16px;
                gap: 14px;
            }

            .news-list-img {
                width: 100%;
                height: 180px;
            }

            .hot-reads-grid {
                grid-template-columns: 1fr;
            }

            .help-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cta-section {
                padding: 32px 20px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

            .footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 26px;
            }

            .page-header-content h1 {
                font-size: 26px;
            }

            .page-header-inner {
                flex-direction: column;
                gap: 20px;
            }

            .page-header-stats {
                width: 100%;
                justify-content: space-around;
            }

            .news-list-title {
                font-size: 16px;
            }

            .news-list-summary {
                font-size: 13px;
            }

            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
            }

            .rss-box {
                flex-direction: column;
                text-align: center;
                padding: 22px 18px;
            }

            .rss-icon {
                margin: 0 auto;
            }

            .rss-actions {
                justify-content: center;
                width: 100%;
            }

            .help-grid {
                grid-template-columns: 1fr;
            }

            .stat-divider {
                height: 30px;
            }

            .stat-item {
                min-width: 60px;
            }

            .stat-item .stat-value {
                font-size: 18px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2E6BE6;
            --primary-hover: #1F55C4;
            --primary-light: #E8F1FF;
            --red-live: #E5484D;
            --green-online: #10B981;
            --bg-page: #F5F8FC;
            --bg-card: #FFFFFF;
            --footer-bg: #0F1F33;
            --text-main: #0F172A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A98A8;
            --border-color: #E5EBF2;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-img: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
            --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --section-space: 80px;
            --section-space-mobile: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover,
        a:focus {
            color: var(--primary-hover);
            outline: none;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Nav */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background-color: #fff;
            border-bottom: 1px solid var(--border-color);
            height: 68px;
            display: flex;
            align-items: center;
            transition: box-shadow 0.3s ease;
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: -0.3px;
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text-main);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li {
            margin: 0;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
            white-space: nowrap;
        }

        .nav-text-link {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .nav-text-link:hover,
        .nav-text-link:focus {
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background-color 0.2s ease;
        }

        .nav-toggle:hover {
            background-color: var(--primary-light);
        }

        /* Button */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-cta-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-red {
            background-color: var(--red-live);
            color: #fff;
            box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
        }

        .btn-red:hover,
        .btn-red:focus {
            background-color: #c73a3f;
            color: #fff;
            box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .badge-live {
            background-color: rgba(229, 72, 77, 0.1);
            color: var(--red-live);
        }

        .badge-live .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--red-live);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        .badge-green {
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--green-online);
        }

        .badge-blue {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .badge-gray {
            background-color: #f1f4f8;
            color: var(--text-secondary);
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        /* Section */
        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-alt {
            background-color: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            max-width: 760px;
            margin-bottom: 40px;
        }

        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-header.centered .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Page header / breadcrumb */
        .page-header {
            padding-top: 110px;
            padding-bottom: 36px;
            background: linear-gradient(180deg, #ffffff 0%, var(--bg-page) 100%);
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb-nav {
            margin-bottom: 18px;
        }

        .breadcrumb-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            flex-wrap: wrap;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-weak);
        }

        .breadcrumb-list a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .breadcrumb-list a:hover {
            color: var(--primary);
        }

        .breadcrumb-list .separator {
            color: var(--text-weak);
            user-select: none;
        }

        .breadcrumb-list .current {
            color: var(--text-main);
            font-weight: 600;
        }

        .page-header-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .page-header-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 760px;
            margin-bottom: 24px;
        }

        .page-stats-bar {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px 24px;
            box-shadow: var(--shadow-card);
        }

        .page-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 120px;
        }

        .page-stat-number {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.3px;
        }

        .page-stat-label {
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 500;
        }

        .page-stat-divider {
            width: 1px;
            height: 32px;
            background-color: var(--border-color);
            flex-shrink: 0;
        }

        /* Scenario bento grid */
        .bento-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }

        .bento-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .bento-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .bento-card-large {
            grid-column: span 4;
            flex-direction: row;
        }

        .bento-card-small {
            grid-column: span 2;
        }

        .bento-card-image {
            flex-shrink: 0;
            overflow: hidden;
            border-radius: 0;
        }

        .bento-card-large .bento-card-image {
            width: 48%;
            min-height: 100%;
        }

        .bento-card-small .bento-card-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

        .bento-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .bento-card:hover .bento-card-image img {
            transform: scale(1.04);
        }

        .bento-card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .bento-card-body .badge {
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .bento-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .bento-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .bento-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s ease;
        }

        .bento-card-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* Data band */
        .data-band {
            background: linear-gradient(135deg, #E8F1FF 0%, #F5F8FC 60%, #fff 100%);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-band-item {
            text-align: center;
        }

        .data-band-number {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            margin-bottom: 4px;
        }

        .data-band-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .data-band-sub {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 22px;
            text-align: left;
            transition: all 0.3s ease;
            position: relative;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 14px;
            counter-increment: step;
        }

        .step-number::before {
            content: counter(step);
        }

        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .step-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Case cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .case-card-image {
            width: 100%;
            aspect-ratio: 16 / 7;
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .case-card:hover .case-card-image img {
            transform: scale(1.03);
        }

        .case-card-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .case-card-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .case-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .case-card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }

        .case-card-meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        /* Download tools */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .download-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

        .download-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .download-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 14px;
        }

        .download-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .download-version {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 4px;
        }

        .download-date {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 14px;
        }

        .download-card .btn {
            margin-top: auto;
            align-self: flex-start;
        }

        /* FAQ */
        .accordion-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }

        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .accordion-item:hover {
            border-color: #cfdbe8;
        }

        .accordion-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color 0.2s ease;
        }

        .accordion-title:hover {
            background-color: var(--primary-light);
        }

        .accordion-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            transition: transform 0.3s ease;
        }

        .accordion-item.open .accordion-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .accordion-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .accordion-item.open .accordion-content {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .accordion-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            padding-top: 4px;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }

        /* Contact CTA */
        .contact-section {
            background: linear-gradient(135deg, #ffffff 0%, var(--primary-light) 100%);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .contact-info-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .contact-info-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .contact-info-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .contact-info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .contact-info-list i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }

        .contact-form {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-input,
        .form-textarea,
        .form-select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            font-size: 15px;
            color: var(--text-main);
            background: #fff;
            transition: all 0.2s ease;
            box-sizing: border-box;
        }

        .form-input:focus,
        .form-textarea:focus,
        .form-select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.2);
        }

        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        /* Footer */
        .footer {
            background-color: var(--footer-bg);
            color: #c5cfdd;
            padding: 56px 0 0;
            margin-top: 0;
            border: none;
        }

        .footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: #9aabbe;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: #9aabbe;
            transition: color 0.2s ease;
        }

        .footer-col a:hover,
        .footer-col a:focus {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #7c8b9c;
        }

        .footer-sitemap-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-sitemap-links a {
            color: #7c8b9c;
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .footer-sitemap-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .bento-card-large {
                grid-column: span 3;
            }
            .bento-card-small {
                grid-column: span 3;
            }
            .bento-card-large {
                flex-direction: column;
            }
            .bento-card-large .bento-card-image {
                width: 100%;
                aspect-ratio: 16 / 8;
            }
            .data-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 28px 24px;
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-section {
                grid-template-columns: 1fr;
                padding: 30px 24px;
            }
        }

        @media (max-width: 768px) {
            .header {
                height: 60px;
            }
            .header .container {
                gap: 12px;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-menu {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 16px;
                display: none;
                box-shadow: 0 20px 30px rgba(15, 23, 42, 0.08);
                z-index: 99;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
                width: 100%;
                text-align: left;
            }
            .nav-right {
                display: none;
                position: absolute;
                top: auto;
                left: 0;
                right: 0;
                background: #fff;
                padding: 12px 16px;
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                gap: 8px;
                z-index: 99;
                margin-top: 0;
                padding-top: 4px;
                padding-bottom: 16px;
            }
            .nav-right.open {
                display: flex;
            }
            .nav-right .btn {
                width: 100%;
            }
            .nav-right .nav-text-link {
                display: block;
                padding: 8px 16px;
                text-align: left;
                border-radius: 8px;
            }

            .page-header {
                padding-top: 84px;
                padding-bottom: 24px;
            }
            .page-header-title {
                font-size: 28px;
            }
            .page-header-desc {
                font-size: 15px;
            }
            .page-stats-bar {
                gap: 12px;
                padding: 14px 16px;
                flex-wrap: wrap;
            }
            .page-stat-item {
                min-width: 80px;
            }
            .page-stat-number {
                font-size: 18px;
            }
            .page-stat-divider {
                display: none;
            }

            .bento-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .bento-card-large,
            .bento-card-small {
                grid-column: span 1;
            }
            .bento-card-large {
                flex-direction: column;
            }
            .bento-card-large .bento-card-image {
                width: 100%;
                aspect-ratio: 16 / 9;
            }

            .data-band {
                grid-template-columns: 1fr;
                gap: 14px;
                text-align: center;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .download-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .section {
                padding: var(--section-space-mobile) 0;
            }
            .section-title {
                font-size: 26px;
            }

            .footer .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .contact-section {
                padding: 24px 18px;
                gap: 28px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 23px;
            }
            .page-header-title {
                font-size: 24px;
            }
            .data-band-number {
                font-size: 26px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 15px;
            }
            .case-card-title,
            .bento-card-title,
            .download-title {
                font-size: 16px;
            }
            .accordion-title {
                padding: 14px 16px;
                font-size: 15px;
            }
            .accordion-content {
                padding: 0 16px;
            }
            .accordion-item.open .accordion-content {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category7 */
:root {
      --primary: #2E6BE6;
      --primary-hover: #1F55C4;
      --primary-light: #E8F1FF;
      --red-live: #E5484D;
      --green-online: #10B981;
      --bg-page: #F5F8FC;
      --bg-card: #FFFFFF;
      --footer-bg: #0F1F33;
      --text-main: #0F172A;
      --text-secondary: #5B6B7C;
      --text-weak: #8A98A8;
      --border-color: #E5EBF2;
      --radius-card: 16px;
      --radius-btn: 12px;
      --radius-img: 12px;
      --radius-pill: 999px;
      --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
      --shadow-card-hover: 0 16px 40px rgba(15, 23, 42, 0.12);
      --shadow-cta-hover: 0 10px 20px rgba(46, 107, 230, 0.25);
      --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
      --section-space: 80px;
      --section-space-mobile: 56px;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-main);
      background-color: var(--bg-page);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
      margin: 0;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border: 0;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover,
    a:focus {
      color: var(--primary-hover);
      outline: none;
    }
    button,
    input,
    textarea,
    select {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .section {
      padding: var(--section-space) 0;
      position: relative;
    }
    .section-alt {
      background-color: #fff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      max-width: 760px;
      margin-bottom: 40px;
    }
    .section-header.centered {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      background: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 14px;
      letter-spacing: 0.3px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.3px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 720px;
    }
    .section-header.centered .section-desc {
      margin-left: auto;
      margin-right: auto;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 15px;
      line-height: 1.4;
      cursor: pointer;
      transition: all 0.25s ease;
      border: none;
      text-decoration: none;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(46, 107, 230, 0.2);
    }
    .btn-primary:hover,
    .btn-primary:focus {
      background-color: var(--primary-hover);
      color: #fff;
      box-shadow: var(--shadow-cta-hover);
      transform: translateY(-2px);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(46, 107, 230, 0.2);
    }
    .btn-outline {
      background-color: transparent;
      color: var(--text-main);
      border: 1px solid var(--border-color);
    }
    .btn-outline:hover,
    .btn-outline:focus {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
      transform: translateY(-2px);
    }
    .btn-outline:active {
      transform: translateY(0);
    }
    .btn-red {
      background-color: var(--red-live);
      color: #fff;
      box-shadow: 0 4px 12px rgba(229, 72, 77, 0.25);
    }
    .btn-red:hover,
    .btn-red:focus {
      background-color: #c73a3f;
      color: #fff;
      box-shadow: 0 10px 20px rgba(229, 72, 77, 0.3);
      transform: translateY(-2px);
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 13px;
      border-radius: 10px;
    }
    .btn-lg {
      padding: 14px 30px;
      font-size: 16px;
      border-radius: 14px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 600;
      line-height: 1.5;
      letter-spacing: 0.2px;
    }
    .badge-live {
      background-color: rgba(229, 72, 77, 0.1);
      color: var(--red-live);
    }
    .badge-live .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: var(--red-live);
      display: inline-block;
      animation: pulse-dot 1.5s infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.3); }
    }
    .badge-blue {
      background-color: var(--primary-light);
      color: var(--primary);
    }
    .badge-gray {
      background-color: #EEF2F6;
      color: var(--text-secondary);
    }

    /* Header / Navigation */
    .header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: #fff;
      border-bottom: 1px solid var(--border-color);
      height: 72px;
      display: flex;
      align-items: center;
    }
    .header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 24px;
    }
    .nav-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 19px;
      color: var(--text-main);
      text-decoration: none;
      letter-spacing: 0.2px;
    }
    .nav-logo:hover,
    .nav-logo:focus {
      color: var(--text-main);
    }
    .logo-icon {
      width: 34px;
      height: 34px;
      background: var(--primary);
      color: #fff;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      text-decoration: none;
      padding: 8px 0;
      position: relative;
      transition: color 0.2s ease;
    }
    .nav-link:hover,
    .nav-link:focus {
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
      font-weight: 600;
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 3px;
      background: var(--primary);
      border-radius: 3px 3px 0 0;
    }
    .nav-right {
      display: flex;
      align-items: center;
      gap: 18px;
      margin-left: auto;
    }
    .nav-text-link {
      font-size: 14px;
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 500;
      transition: color 0.2s ease;
    }
    .nav-text-link:hover,
    .nav-text-link:focus {
      color: var(--primary);
    }
    .nav-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 22px;
      cursor: pointer;
      padding: 8px;
      border-radius: 8px;
      transition: background 0.2s ease;
    }
    .nav-toggle:hover {
      background: var(--primary-light);
      color: var(--primary);
    }

    /* Page Hero */
    .page-hero {
      background: linear-gradient(180deg, #EAF2FF 0%, #F5F8FC 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 56px 0 64px;
    }
    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-weak);
      margin-bottom: 24px;
      list-style: none;
      padding: 0;
    }
    .breadcrumb li {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .breadcrumb a {
      color: var(--text-secondary);
      text-decoration: none;
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb .sep {
      color: var(--text-weak);
    }
    .page-hero-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .page-hero h1 {
      font-size: 40px;
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .page-hero-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 24px;
      max-width: 680px;
    }
    .page-hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .hero-stats {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      box-shadow: var(--shadow-card);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .hero-stat-item {
      text-align: left;
    }
    .hero-stat-value {
      font-size: 30px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .hero-stat-label {
      font-size: 13px;
      color: var(--text-secondary);
    }

    /* Cards Grid */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: #d5e0f2;
    }
    .card-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .card h3 {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
      line-height: 1.4;
    }
    .card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* Steps */
    .steps-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      counter-reset: step-counter;
    }
    .step-item {
      display: flex;
      gap: 20px;
      align-items: flex-start;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 22px 24px;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .step-item:hover {
      transform: translateX(4px);
      box-shadow: var(--shadow-card-hover);
    }
    .step-number {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 18px;
      counter-increment: step-counter;
    }
    .step-number::before {
      content: counter(step-counter);
    }
    .step-content h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .step-content p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 0;
      line-height: 1.7;
    }

    /* Policy */
    .policy-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .policy-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .policy-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }
    .policy-card .policy-icon {
      font-size: 26px;
      color: var(--primary);
      margin-bottom: 14px;
    }
    .policy-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .policy-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* Case */
    .case-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
    }
    .case-img {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--primary-light);
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .case-body .badge {
      align-self: flex-start;
      margin-bottom: 10px;
    }
    .case-body h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .case-body p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 14px;
      flex: 1;
    }
    .case-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-weak);
    }

    /* FAQ */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      overflow: hidden;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .faq-item.open {
      border-color: var(--primary);
      box-shadow: 0 8px 20px rgba(46, 107, 230, 0.08);
    }
    .faq-question {
      width: 100%;
      background: #fff;
      border: none;
      text-align: left;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: background 0.25s ease, color 0.25s ease;
    }
    .faq-question:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .faq-question .faq-icon {
      flex-shrink: 0;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform 0.3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(180deg);
      background: var(--primary);
      color: #fff;
    }
    .faq-answer {
      padding: 0 22px 18px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      display: none;
    }
    .faq-item.open .faq-answer {
      display: block;
    }

    /* Form */
    .form-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 36px;
      box-shadow: var(--shadow-card);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      background: #fff;
      font-size: 15px;
      color: var(--text-main);
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      outline: none;
      box-shadow: none;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.2);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 110px;
    }
    .form-submit-row {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* Footer */
    .footer {
      background: var(--footer-bg);
      color: #A6B4C8;
      padding-top: 56px;
      font-size: 14px;
      line-height: 1.8;
    }
    .footer .container:first-child {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }
    .footer-brand .logo-icon {
      background: var(--primary);
      color: #fff;
      width: 34px;
      height: 34px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
    }
    .footer-desc {
      color: #A6B4C8;
      max-width: 380px;
      margin-bottom: 0;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 10px;
    }
    .footer-col a {
      color: #A6B4C8;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    .footer-col a:hover,
    .footer-col a:focus {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 22px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: #8B9CB0;
    }
    .footer-sitemap-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-sitemap-links a {
      color: #A6B4C8;
      text-decoration: none;
    }
    .footer-sitemap-links a:hover {
      color: #fff;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .nav-toggle {
        display: inline-flex;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 12px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 12px 24px rgba(15,23,42,0.08);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-menu li {
        width: 100%;
      }
      .nav-link {
        display: block;
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid var(--border-color);
        font-size: 16px;
      }
      .nav-link.active::after {
        display: none;
      }
      .nav-link.active {
        background: var(--primary-light);
        padding-left: 12px;
        border-radius: 8px;
      }
      .nav-right {
        margin-left: auto;
      }
      .nav-text-link {
        display: none;
      }
      .page-hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats {
        grid-template-columns: repeat(4, 1fr);
      }
    }
    @media (max-width: 768px) {
      .section {
        padding: var(--section-space-mobile) 0;
      }
      .page-hero {
        padding: 40px 0 48px;
      }
      .page-hero h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .grid-2,
      .grid-3,
      .grid-4,
      .policy-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .hero-stats {
        grid-template-columns: 1fr 1fr;
      }
      .footer .container:first-child {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .header {
        height: 64px;
      }
      .nav-menu {
        top: 64px;
      }
      .page-hero h1 {
        font-size: 28px;
      }
      .page-hero-desc {
        font-size: 15px;
      }
      .btn {
        width: 100%;
      }
      .page-hero-actions {
        flex-direction: column;
      }
      .hero-stats {
        grid-template-columns: 1fr;
        padding: 20px;
      }
      .footer .container:first-child {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .form-card {
        padding: 24px 18px;
      }
      .case-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
      }
    }