/* roulang page: index */
:root {
            --primary: #0f1d36;
            --primary-light: #1a3354;
            --primary-lighter: #254872;
            --accent: #c7923c;
            --accent-light: #e0b860;
            --accent-dark: #9e6f28;
            --bg: #f7f8fb;
            --bg-alt: #eef1f7;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-secondary: #4a4a62;
            --text-light: #7a7a94;
            --border: #e2e5ed;
            --border-light: #eef0f5;
            --shadow-sm: 0 1px 3px rgba(15, 29, 54, 0.04);
            --shadow: 0 4px 16px rgba(15, 29, 54, 0.06);
            --shadow-md: 0 8px 28px rgba(15, 29, 54, 0.09);
            --shadow-lg: 0 16px 48px rgba(15, 29, 54, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: 1248px;
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
        }

        /* Header */
        .site-header {
            background: #ffffff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--primary-lighter));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .brand-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .brand-links a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
            white-space: nowrap;
            padding: 6px 10px;
            border-radius: 20px;
            transition: all var(--transition);
        }

        .brand-links a:hover {
            color: var(--accent);
            background: #fdf6ea;
        }

        .brand-cta-btn {
            background: var(--accent);
            color: #fff !important;
            padding: 8px 18px !important;
            border-radius: 22px !important;
            font-weight: 600 !important;
            font-size: 0.88rem !important;
            transition: all var(--transition);
        }

        .brand-cta-btn:hover {
            background: var(--accent-dark) !important;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(199, 146, 60, 0.35);
        }

        .channel-nav-row {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav-row::-webkit-scrollbar {
            display: none;
        }

        .channel-nav-row a {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            background: transparent;
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }

        .channel-nav-row a:hover {
            color: var(--primary);
            background: var(--bg-alt);
        }

        .channel-nav-row a.active {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(15, 29, 54, 0.25);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            font-size: 1.6rem;
            color: var(--primary);
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        @media (max-width: 768px) {
            .brand-links {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .channel-nav-row {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 8px 0;
            }
            .channel-nav-row.open {
                display: flex;
            }
            .channel-nav-row a {
                border-radius: var(--radius-sm);
                padding: 13px 16px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0b1529 0%, #132444 40%, #1a3354 100%);
            color: #ffffff;
            padding: 70px 0 90px;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            pointer-events: none;
        }

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

        .hero-inner {
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: #e0c878;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            font-size: 0.75rem;
            color: var(--accent-light);
        }

        .hero-title {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            color: var(--accent-light);
            position: relative;
        }

        .hero-desc {
            font-size: 1.12rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 14px;
            max-width: 640px;
        }

        .hero-desc-intro {
            font-size: 1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 620px;
        }

        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 14px 30px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 6px 22px rgba(199, 146, 60, 0.35);
        }

        .btn-primary-hero:hover {
            background: #d4a348;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(199, 146, 60, 0.45);
        }

        .btn-outline-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.45);
            color: #fff;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }

        .btn-outline-hero:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 48px 0 60px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-desc-intro {
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                justify-content: center;
                text-align: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }

        /* Section Common */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            background: #fdf6ea;
            padding: 6px 16px;
            border-radius: 20px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

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

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent-light);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-number .plus {
            color: var(--accent);
            font-size: 1.8rem;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card {
                padding: 22px 14px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .adv-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 34px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }

        .adv-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .adv-icon-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            background: #fdf6ea;
            color: var(--accent);
            transition: all var(--transition);
        }

        .adv-card:hover .adv-icon-circle {
            background: var(--accent);
            color: #fff;
            transform: scale(1.08);
        }

        .adv-card h4 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .adv-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .adv-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .adv-card {
                padding: 24px 16px;
            }
        }

        @media (max-width: 520px) {
            .adv-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Brand Story */
        .story-section {
            background: #ffffff;
            padding: 64px 0;
        }

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

        .story-image-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-lg);
        }

        .story-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .story-image-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(15, 29, 54, 0.85);
            color: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
        }

        .story-text h3 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .story-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        @media (max-width: 768px) {
            .story-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .story-text h3 {
                font-size: 1.4rem;
            }
        }

        /* Category入口 */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .cat-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
            display: block;
            color: inherit;
        }

        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

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

        .cat-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .cat-card-body {
            padding: 18px 16px;
            text-align: center;
        }

        .cat-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .cat-card-body span {
            font-size: 0.82rem;
            color: var(--text-light);
        }

        @media (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 768px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .cat-card-body h4 {
                font-size: 0.9rem;
            }
        }

        /* Focus赛事 */
        .focus-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .focus-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .focus-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .focus-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .focus-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }

        .focus-card-body {
            padding: 18px;
        }

        .focus-card-body h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .focus-card-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.55;
        }

        @media (max-width: 768px) {
            .focus-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .focus-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .review-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .review-stars {
            color: #f0b428;
            font-size: 1rem;
            margin-bottom: 10px;
            letter-spacing: 0.06em;
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }

        .review-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
        }

        @media (max-width: 768px) {
            .reviews-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Partners */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 28px 40px;
        }

        .partner-item {
            background: #ffffff;
            padding: 18px 28px;
            border-radius: var(--radius);
            font-weight: 700;
            color: var(--text-secondary);
            font-size: 1rem;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
            min-width: 100px;
        }

        .partner-item:hover {
            color: var(--accent);
            border-color: var(--accent-light);
            box-shadow: var(--shadow);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            padding: 20px 22px;
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            background: #fdfcf9;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

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

        .news-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: block;
            color: inherit;
        }

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

        .news-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .news-card-body {
            padding: 18px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .news-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-card-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .read-more {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }

        .news-card:hover .read-more {
            gap: 8px;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0f1d36 0%, #1a3354 100%);
            color: #fff;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

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

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-sub {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 16px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(199, 146, 60, 0.4);
        }

        .btn-cta-large:hover {
            background: #d4a348;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(199, 146, 60, 0.5);
        }

        @media (max-width: 520px) {
            .cta-title {
                font-size: 1.4rem;
            }
            .btn-cta-large {
                padding: 14px 24px;
                font-size: 1rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #0b1529;
            color: #c0c8d6;
            padding: 48px 0 32px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 8px;
            display: block;
        }

        .footer-brand p {
            color: #8896a8;
            line-height: 1.6;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: #8896a8;
            padding: 4px 0;
            font-size: 0.85rem;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: #6b7890;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* BG alt section */
        .bg-white-section {
            background: #ffffff;
        }

        .bg-light-section {
            background: var(--bg-alt);
        }

/* roulang page: category1 */
:root {
            --color-brand-dark: #0a1f3a;
            --color-brand-navy: #0f2b52;
            --color-brand-mid: #1a3f6b;
            --color-brand-gold: #c8a45c;
            --color-brand-goldlight: #e0c87d;
            --color-brand-warm: #e85d3a;
            --color-surface: #f6f7f9;
            --color-card: #ffffff;
            --color-muted: #6b7d8e;
            --color-border: #e2e6ec;
            --color-text: #1a1f2e;
            --color-text-soft: #475569;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --shadow-card: 0 2px 16px rgba(10, 31, 58, 0.07);
            --shadow-card-hover: 0 8px 32px rgba(10, 31, 58, 0.13);
            --shadow-nav: 0 1px 0 0 rgba(10, 31, 58, 0.06);
            --transition-base: 0.22s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-surface);
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        button,
        input {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Header & Navigation */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-nav);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: wrap;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-brand-navy), var(--color-brand-mid));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand-gold);
            font-size: 1.25rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .channel-nav-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            align-items: center;
            padding-top: 0.5rem;
            padding-bottom: 0.5rem;
            border-top: 1px solid #f0f2f5;
            margin-top: 0.4rem;
            width: 100%;
        }
        .channel-nav-row a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-soft);
            background: transparent;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .channel-nav-row a:hover {
            color: var(--color-brand-navy);
            background: #f0f4f8;
        }
        .channel-nav-row a.active {
            background: var(--color-brand-navy);
            color: #ffffff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(15, 43, 82, 0.3);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-brand-dark);
            cursor: pointer;
            padding: 0.4rem;
        }

        /* Hero Banner */
        .page-hero {
            position: relative;
            background: linear-gradient(160deg, #0a1f3a 0%, #0f2b52 40%, #1a3f6b 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 5rem 0 4rem;
            color: #ffffff;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 31, 58, 0.75) 0%, rgba(15, 43, 82, 0.88) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .badge-tag {
            display: inline-block;
            background: rgba(200, 164, 92, 0.2);
            border: 1px solid rgba(200, 164, 92, 0.45);
            color: var(--color-brand-goldlight);
            padding: 0.35rem 1rem;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 1.25rem;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 1.5px;
            margin-bottom: 1rem;
            line-height: 1.25;
        }
        .page-hero .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.8;
        }

        /* Section */
        .section {
            padding: 4rem 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            margin-bottom: 0.5rem;
            letter-spacing: 0.5px;
        }
        .section-header .section-sub {
            font-size: 1rem;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-accent {
            background: #ffffff;
        }

        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .card {
            background: #ffffff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card-body {
            padding: 1.5rem;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            margin-bottom: 0.5rem;
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.65;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            margin-bottom: 0.6rem;
            letter-spacing: 0.5px;
        }
        .tag-gold {
            background: #fdf6e8;
            color: #b08a38;
        }
        .tag-blue {
            background: #e8f0fa;
            color: #1a3f6b;
        }
        .tag-warm {
            background: #fef0ec;
            color: #c94a2a;
        }

        /* Feature blocks */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .feature-img-wrap {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .feature-img-wrap img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }
        .feature-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            margin-bottom: 0.75rem;
        }
        .feature-content p {
            color: var(--color-text-soft);
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        .feature-list {
            list-style: none;
            padding: 0;
        }
        .feature-list li {
            padding: 0.45rem 0;
            padding-left: 1.6rem;
            position: relative;
            color: var(--color-text-soft);
            font-size: 0.95rem;
        }
        .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-brand-gold);
            font-weight: 700;
            font-size: 1rem;
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .stat-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 1.75rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-brand-navy);
            letter-spacing: 1px;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.3rem;
        }

        /* Myth list */
        .myth-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
        }
        .myth-item {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            border-left: 4px solid var(--color-brand-warm);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .myth-item:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .myth-item h4 {
            font-weight: 700;
            color: var(--color-brand-dark);
            margin-bottom: 0.4rem;
            font-size: 1rem;
        }
        .myth-item p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        .myth-icon {
            font-size: 1.4rem;
            margin-bottom: 0.4rem;
            color: var(--color-brand-warm);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 1.5rem 1.75rem;
            margin-bottom: 0.85rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: default;
        }
        .faq-item:hover {
            border-color: #cdd5de;
            box-shadow: var(--shadow-card-hover);
        }
        .faq-item h4 {
            font-weight: 700;
            color: var(--color-brand-dark);
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
        }
        .faq-item p {
            color: var(--color-text-soft);
            font-size: 0.92rem;
            line-height: 1.75;
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(135deg, var(--color-brand-navy), #0d2540);
            border-radius: var(--radius-2xl);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #ffffff;
            box-shadow: 0 12px 40px rgba(10, 31, 58, 0.2);
        }
        .cta-block h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border-radius: 999px;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.4px;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-gold {
            background: var(--color-brand-gold);
            color: #1a1f2e;
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.35);
        }
        .btn-gold:hover {
            background: #d4b368;
            box-shadow: 0 6px 22px rgba(200, 164, 92, 0.5);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.55);
            color: #ffffff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #ffffff;
        }
        .btn-ghost-navy {
            background: transparent;
            color: var(--color-brand-navy);
            border: 2px solid var(--color-brand-navy);
        }
        .btn-ghost-navy:hover {
            background: var(--color-brand-navy);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #0a1a2e;
            color: rgba(255, 255, 255, 0.78);
            padding: 3.5rem 0 1.5rem;
            margin-top: 1rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .logo-text {
            color: #ffffff;
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: 1px;
            display: block;
            margin-bottom: 0.6rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-brand-goldlight);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .feature-img-wrap img {
                height: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .myth-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .channel-nav-row {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding-top: 0.75rem;
            }
            .channel-nav-row.open {
                display: flex;
            }
            .channel-nav-row a {
                border-radius: 8px;
                padding: 0.6rem 1rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .page-hero {
                padding: 3rem 0 2.5rem;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
            .page-hero .hero-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-block {
                padding: 2rem 1.25rem;
            }
            .cta-block h3 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .feature-row {
                gap: 1.5rem;
            }
            .feature-img-wrap img {
                height: 200px;
            }
            .myth-list {
                grid-template-columns: 1fr;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-hero h1 {
                font-size: 1.4rem;
                letter-spacing: 0.5px;
            }
            .page-hero .badge-tag {
                font-size: 0.75rem;
                padding: 0.25rem 0.75rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .stat-card {
                padding: 1.1rem 0.75rem;
            }
            .stat-card .stat-num {
                font-size: 1.5rem;
            }
            .card-img {
                height: 160px;
            }
            .btn {
                padding: 0.6rem 1.4rem;
                font-size: 0.9rem;
            }
            .faq-item {
                padding: 1.1rem 1.2rem;
            }
            .faq-item h4 {
                font-size: 0.95rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-brand-600: #1a3a5c;
            --color-brand-700: #152f4a;
            --color-gold-500: #c9a96e;
            --color-gold-600: #b8934a;
            --color-surface: #f8f9fb;
            --color-card: #ffffff;
            --color-muted: #6b7280;
            --color-border: #e5e7eb;
            --color-text: #1a1a2e;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.05);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 32px rgba(0, 0, 0, 0.08);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: #ffffff;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        button,
        input {
            font-family: inherit;
        }

        /* Container */
        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.875rem;
            padding-bottom: 0.875rem;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .brand-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-brand-600);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .brand-logo i {
            font-size: 1.15rem;
            color: var(--color-gold-500);
        }
        .channel-nav-row {
            display: flex;
            flex-wrap: nowrap;
            gap: 0.15rem;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding: 0.25rem 0;
            align-items: center;
        }
        .channel-nav-row::-webkit-scrollbar {
            display: none;
        }
        .channel-nav-row a {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 0.45rem 0.9rem;
            border-radius: 1.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #4b5563;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }
        .channel-nav-row a:hover {
            color: var(--color-brand-600);
            background: #f3f4f6;
        }
        .channel-nav-row a.active {
            color: #ffffff;
            background: var(--color-brand-600);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 58, 92, 0.25);
        }
        @media (max-width: 767px) {
            .header-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
            .channel-nav-row {
                width: 100%;
                gap: 0.1rem;
                padding-bottom: 0.3rem;
            }
            .channel-nav-row a {
                padding: 0.35rem 0.7rem;
                font-size: 0.8rem;
                border-radius: 1.25rem;
            }
            .brand-logo {
                font-size: 1.2rem;
            }
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #1a3a5c 0%, #152f4a 40%, #0f2840 100%);
            color: #ffffff;
            padding: 4rem 0 3.5rem;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.06), transparent);
            z-index: 1;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(201, 169, 110, 0.2);
            border: 1px solid rgba(201, 169, 110, 0.4);
            color: #f0d78c;
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 1.25rem;
        }
        .page-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin: 0 0 0.75rem;
            line-height: 1.25;
        }
        .page-hero .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 767px) {
            .page-hero {
                padding: 2.5rem 0 2rem;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .page-hero .hero-desc {
                font-size: 0.95rem;
            }
        }

        /* Section */
        .section-block {
            padding: 3.5rem 0;
        }
        @media (max-width: 767px) {
            .section-block {
                padding: 2.25rem 0;
            }
        }
        .section-title {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--color-brand-600);
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--color-muted);
            font-size: 0.95rem;
            margin-bottom: 2.5rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-title-line {
            width: 48px;
            height: 3px;
            background: var(--color-gold-500);
            border-radius: 2px;
            margin: 0.6rem auto 1rem;
        }

        /* Stat Cards */
        .stat-card {
            background: var(--color-card);
            border-radius: var(--radius-2xl);
            padding: 1.75rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 0.85rem;
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand-600);
            letter-spacing: -0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 0.3rem;
        }

        /* Team Card */
        .team-card {
            background: var(--color-card);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .team-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .team-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e8ecf1;
        }
        .team-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .team-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .team-card .card-body {
            padding: 1.35rem 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .team-card .card-tag {
            display: inline-block;
            background: #fef3e0;
            color: #b8934a;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 1rem;
            margin-bottom: 0.6rem;
            align-self: flex-start;
            letter-spacing: 0.03em;
        }
        .team-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-brand-600);
            margin: 0 0 0.4rem;
        }
        .team-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 0.5rem;
        }
        .team-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .team-card .card-desc {
            font-size: 0.88rem;
            color: #4b5563;
            line-height: 1.6;
            margin-top: 0.3rem;
            flex: 1;
        }
        .team-card .card-stats-row {
            display: flex;
            gap: 0.5rem;
            margin-top: 0.75rem;
            flex-wrap: wrap;
        }
        .team-card .mini-stat {
            flex: 1;
            min-width: 50px;
            text-align: center;
            background: #f8f9fb;
            border-radius: 0.6rem;
            padding: 0.5rem 0.35rem;
            font-size: 0.73rem;
            color: #4b5563;
            line-height: 1.3;
        }
        .team-card .mini-stat strong {
            display: block;
            font-size: 1rem;
            color: var(--color-brand-600);
            font-weight: 700;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            background: #ffffff;
        }
        .comparison-table {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .comparison-table thead th {
            background: var(--color-brand-600);
            color: #ffffff;
            padding: 0.9rem 1rem;
            text-align: center;
            font-weight: 600;
            font-size: 0.82rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .comparison-table tbody td {
            padding: 0.8rem 1rem;
            text-align: center;
            border-bottom: 1px solid #f3f4f6;
            color: #374151;
        }
        .comparison-table tbody tr:hover {
            background: #f9fafb;
        }
        .comparison-table .team-name-cell {
            text-align: left;
            font-weight: 600;
            color: var(--color-brand-600);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .comparison-table .rank-badge {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-gold-500);
            color: #fff;
            font-weight: 700;
            font-size: 0.78rem;
            line-height: 28px;
            text-align: center;
            flex-shrink: 0;
        }
        .comparison-table .trend-up {
            color: #10b981;
            font-weight: 600;
        }
        .comparison-table .trend-down {
            color: #ef4444;
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: #ffffff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #c9d5e0;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 1.1rem 1.3rem;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-brand-600);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            line-height: 1.5;
            transition: background var(--transition-base);
        }
        .faq-question:hover {
            background: #f8f9fb;
        }
        .faq-question i {
            font-size: 0.8rem;
            color: var(--color-gold-500);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.3rem 1.1rem;
        }
        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: #4b5563;
            line-height: 1.75;
        }

        /* CTA */
        .cta-block {
            background: linear-gradient(135deg, #1a3a5c 0%, #152f4a 100%);
            color: #ffffff;
            text-align: center;
            padding: 3rem 0;
            border-radius: var(--radius-3xl);
            margin: 0 1.25rem;
        }
        @media (min-width: 768px) {
            .cta-block {
                margin: 0 2rem;
                padding: 3.5rem 0;
            }
        }
        .cta-block h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 1.5rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-gold-500);
            color: #1a1a2e;
            padding: 0.75rem 1.8rem;
            border-radius: 2.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
        }
        .btn-primary:hover {
            background: #d4b67a;
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.5);
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #ffffff;
            padding: 0.7rem 1.6rem;
            border-radius: 2.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }
        .btn-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* Footer */
        .site-footer {
            background: #0f1923;
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
        }
        .footer-brand .logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.9rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
            padding: 0.25rem 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: #f0d78c;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* Utility */
        .text-gold {
            color: var(--color-gold-500);
        }
        .bg-surface {
            background: var(--color-surface);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

/* roulang page: category4 */
:root {
            --brand: #1a3c5e;
            --brand-light: #2a5a8a;
            --accent: #c8963e;
            --accent-light: #e0b860;
            --surface: #f8f9fb;
            --surface-alt: #eef1f5;
            --text-primary: #1a1f2e;
            --text-secondary: #5a6070;
            --text-muted: #8b919e;
            --border-light: #e2e6ed;
            --border-strong: #cdd3dc;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #ffffff;
            font-size: 16px;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

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

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 1024px) {
            .container {
                max-width: 960px;
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 768px) {
            .container {
                max-width: 720px;
                padding-left: 14px;
                padding-right: 14px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

        /* Header */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            flex-wrap: wrap;
            gap: 12px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--brand);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--brand-light);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand), var(--brand-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .brand-actions a:hover {
            color: var(--brand);
        }
        .brand-actions .btn-outline-sm {
            border: 1.5px solid var(--brand);
            color: var(--brand);
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .brand-actions .btn-outline-sm:hover {
            background: var(--brand);
            color: #fff;
        }

        /* Channel Nav */
        .channel-nav-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            flex-wrap: wrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .channel-nav-row::-webkit-scrollbar {
            height: 4px;
        }
        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }
        .channel-nav-row a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 22px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            background: transparent;
            border: 1.5px solid transparent;
        }
        .channel-nav-row a:hover {
            color: var(--brand);
            background: var(--surface);
            border-color: var(--border-light);
        }
        .channel-nav-row a.active {
            background: var(--brand);
            color: #ffffff;
            font-weight: 600;
            border-color: var(--brand);
            box-shadow: var(--shadow-md);
        }
        .channel-nav-row a.active:hover {
            background: var(--brand-light);
            border-color: var(--brand-light);
            color: #ffffff;
        }

        /* Mobile nav toggle */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-nav-toggle:hover {
            background: var(--surface);
        }

        @media (max-width: 768px) {
            .brand-row {
                padding: 10px 0;
                gap: 8px;
            }
            .logo-link {
                font-size: 1.25rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .brand-actions {
                gap: 10px;
            }
            .brand-actions a {
                font-size: 0.8rem;
            }
            .brand-actions .btn-outline-sm {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .channel-nav-row {
                gap: 2px;
                padding: 6px 0 10px;
            }
            .channel-nav-row a {
                padding: 7px 14px;
                font-size: 0.82rem;
                border-radius: 18px;
            }
            .mobile-nav-toggle {
                display: block;
            }
            .channel-nav-row.collapsed {
                display: none;
            }
            .channel-nav-row.expanded {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .brand-row {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: space-between;
            }
            .brand-actions {
                gap: 6px;
                flex-wrap: wrap;
            }
            .brand-actions a {
                font-size: 0.75rem;
            }
            .channel-nav-row a {
                padding: 6px 10px;
                font-size: 0.76rem;
                border-radius: 16px;
            }
        }

        /* Section spacing */
        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-lg {
                padding: 56px 0;
            }
            .section-sm {
                padding: 28px 0;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 32px 0;
            }
            .section-lg {
                padding: 40px 0;
            }
            .section-sm {
                padding: 20px 0;
            }
        }

        /* Cards */
        .card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 24px;
        }
        .card-sm .card-img {
            height: 160px;
        }
        @media (max-width: 768px) {
            .card-img {
                height: 170px;
            }
            .card-body {
                padding: 16px 18px;
            }
            .card-sm .card-img {
                height: 140px;
            }
        }

        /* Feature card */
        .feature-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .feature-card .icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            background: var(--surface);
            color: var(--brand);
            transition: all var(--transition-normal);
        }
        .feature-card:hover .icon-circle {
            background: var(--brand);
            color: #fff;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 28px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--brand);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .btn-primary:hover {
            background: var(--brand-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .btn-accent:hover {
            background: #b8862e;
            box-shadow: var(--shadow-lg);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--brand);
            color: var(--brand);
            font-weight: 600;
        }
        .btn-outline:hover {
            background: var(--brand);
            color: #fff;
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 1.05rem;
            border-radius: 30px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 22px;
        }

        @media (max-width: 520px) {
            .btn {
                padding: 10px 20px;
                font-size: 0.88rem;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* Tags */
        .tag {
            display: inline-block;
            padding: 5px 14px;
            font-size: 0.8rem;
            font-weight: 500;
            border-radius: 16px;
            background: var(--surface);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .tag-accent {
            background: #fdf3e0;
            color: #8b6914;
        }
        .tag-brand {
            background: #e8eef5;
            color: var(--brand);
        }
        .tag-sm {
            padding: 3px 10px;
            font-size: 0.72rem;
            border-radius: 12px;
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f2440 0%, #1a3c5e 40%, #1e4a72 100%);
            color: #ffffff;
            padding: 80px 0;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 700px;
        }
        .hero-section h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .hero-section .hero-desc {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 56px 0;
                min-height: 320px;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .hero-desc {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                padding: 40px 0;
                min-height: 260px;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section .hero-desc {
                font-size: 0.9rem;
            }
        }

        /* Divider */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 16px 0;
            border: none;
        }
        .divider-center {
            margin-left: auto;
            margin-right: auto;
        }

        /* Footer */
        .site-footer {
            background: #111827;
            color: #cbd5e1;
            padding: 48px 0 20px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 10px;
        }
        .site-footer h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .site-footer a {
            display: block;
            color: #94a3b8;
            transition: color var(--transition-fast);
            padding: 3px 0;
            font-size: 0.88rem;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 14px;
            }
        }

        /* Highlight box */
        .highlight-box {
            background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 20px 0;
        }
        .highlight-box strong {
            color: var(--brand);
        }

        /* Number badge */
        .num-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        /* Accordion / FAQ */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: #ffffff;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
        }
        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            user-select: none;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--surface);
        }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--brand);
        }
        .faq-icon {
            transition: transform var(--transition-fast);
            font-size: 0.9rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--brand);
        }

        /* Stats row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            text-align: center;
            padding: 28px 16px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

        /* Grid helpers */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .grid-3 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .grid-3 {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* Misc */
        .text-accent {
            color: var(--accent);
        }
        .text-brand {
            color: var(--brand);
        }
        .bg-surface {
            background: var(--surface);
        }
        .bg-surface-alt {
            background: var(--surface-alt);
        }
        .rounded-custom {
            border-radius: var(--radius-lg);
        }
        .shadow-custom {
            box-shadow: var(--shadow-md);
        }

/* roulang page: category2 */
:root {
            --color-primary: #1B3A5C;
            --color-primary-dark: #0F253A;
            --color-primary-light: #2A5180;
            --color-accent: #C8963E;
            --color-accent-light: #D9B068;
            --color-accent-dark: #A67A2E;
            --color-surface: #F8F9FA;
            --color-surface-alt: #EEF1F5;
            --color-muted: #6B7280;
            --color-text-main: #1A1A1A;
            --color-text-soft: #4A4A4A;
            --color-border: #E5E7EB;
            --color-border-light: #F0F1F3;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 20px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.06);
            --shadow-btn: 0 2px 8px rgba(27, 58, 92, 0.15);
            --shadow-btn-hover: 0 4px 18px rgba(27, 58, 92, 0.25);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text-main);
            background-color: #ffffff;
            min-height: 100vh;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1280px) {
            .container {
                max-width: 1240px;
            }
        }

        /* Header & Brand Row */
        .site-header {
            background: #ffffff;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--color-primary-light);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-header-outline {
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }

        .btn-header-outline:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-btn-hover);
        }

        .btn-header-filled {
            background: var(--color-accent);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-header-filled:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        /* Channel Nav Row */
        .channel-nav-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 10px 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            white-space: nowrap;
        }

        .channel-nav-row::-webkit-scrollbar {
            display: none;
        }

        .channel-nav-row a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 22px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
            flex-shrink: 0;
        }

        .channel-nav-row a:hover {
            color: var(--color-primary);
            background: var(--color-surface);
        }

        .channel-nav-row a.active {
            color: #ffffff;
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }

        .channel-nav-row a.active:hover {
            background: var(--color-primary-light);
            color: #ffffff;
        }

        /* Mobile Nav Scroll Fade */
        .nav-scroll-wrapper {
            position: relative;
        }

        .nav-scroll-wrapper::after {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 40px;
            background: linear-gradient(to left, #ffffff 30%, transparent 100%);
            pointer-events: none;
            z-index: 2;
            border-radius: 0 22px 22px 0;
        }

        @media (min-width: 900px) {
            .nav-scroll-wrapper::after {
                display: none;
            }
            .channel-nav-row {
                justify-content: flex-start;
                gap: 6px;
                overflow-x: visible;
                flex-wrap: wrap;
            }
        }

        /* Mobile Menu Toggle */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            padding: 8px;
            cursor: pointer;
        }

        @media (max-width: 899px) {
            .brand-row {
                padding: 10px 0;
            }
            .logo-link {
                font-size: 1.25rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
                border-radius: 8px;
            }
            .btn-header {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .channel-nav-row a {
                padding: 8px 14px;
                font-size: 0.85rem;
                border-radius: 18px;
            }
            .brand-actions .btn-header-outline {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .logo-link {
                font-size: 1.1rem;
                gap: 6px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
                border-radius: 7px;
            }
            .btn-header {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .channel-nav-row a {
                padding: 7px 11px;
                font-size: 0.8rem;
                border-radius: 16px;
            }
            .brand-actions .btn-header-filled {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

        /* Hero Banner */
        .hero-banner {
            position: relative;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 37, 58, 0.88) 0%,
                    rgba(27, 58, 92, 0.78) 40%,
                    rgba(27, 58, 92, 0.65) 100%);
            z-index: 1;
        }

        .hero-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 50px;
            padding-bottom: 50px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.4);
            border-radius: var(--radius-tag);
            color: var(--color-accent-light);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.03em;
            margin: 0 0 16px;
            line-height: 1.2;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 20px;
            max-width: 640px;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 28px;
            max-width: 680px;
            line-height: 1.75;
        }

        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-size: 1rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            box-shadow: var(--shadow-btn);
            transition: all var(--transition-smooth);
            text-decoration: none;
        }

        .btn-hero:hover {
            background: var(--color-accent-light);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 768px) {
            .hero-banner {
                min-height: 340px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn-hero {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .hero-banner .container {
                padding-top: 36px;
                padding-bottom: 36px;
            }
        }

        @media (max-width: 520px) {
            .hero-banner {
                min-height: 300px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-desc {
                font-size: 0.82rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .btn-hero {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .hero-banner .container {
                padding-top: 28px;
                padding-bottom: 28px;
            }
        }

        /* Section Common */
        .section {
            padding: 56px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(27, 58, 92, 0.06);
            border-radius: var(--radius-tag);
            color: var(--color-primary);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 10px;
            letter-spacing: 0.02em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 30px 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
            .section-header {
                margin-bottom: 22px;
            }
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-strategy {
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }

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

        .card-strategy-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

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

        .card-strategy-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(200, 150, 62, 0.1);
            color: var(--color-accent-dark);
            border-radius: var(--radius-tag);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .card-strategy-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .card-strategy-desc {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
            flex: 1;
        }

        .card-strategy-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 14px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .card-strategy-link:hover {
            color: var(--color-accent);
        }

        .card-strategy-link i {
            transition: transform var(--transition-fast);
        }

        .card-strategy-link:hover i {
            transform: translateX(3px);
        }

        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 640px) {
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-strategy-img {
                height: 180px;
            }
            .card-strategy-body {
                padding: 16px 18px 18px;
            }
            .card-strategy-title {
                font-size: 1rem;
            }
        }

        /* Steps Section */
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: #ffffff;
            border-radius: var(--radius-card);
            padding: 22px 26px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .step-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }

        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
        }

        .step-content h4 {
            margin: 0 0 6px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-main);
        }

        .step-content p {
            margin: 0;
            font-size: 0.93rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        @media (max-width: 640px) {
            .step-item {
                padding: 16px 18px;
                gap: 14px;
            }
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
            .step-content h4 {
                font-size: 1rem;
            }
            .step-content p {
                font-size: 0.85rem;
            }
        }

        /* Tips Highlight */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tip-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            text-align: center;
            transition: all var(--transition-smooth);
            border: 1px solid transparent;
        }

        .tip-card:hover {
            background: #ffffff;
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-light);
        }

        .tip-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(27, 58, 92, 0.08);
            color: var(--color-primary);
            font-size: 1.4rem;
            margin-bottom: 14px;
        }

        .tip-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-main);
            margin: 0 0 8px;
        }

        .tip-card p {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .tip-card {
                padding: 20px 16px;
            }
        }

        @media (max-width: 520px) {
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .tip-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
            background: #ffffff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-item {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
        }

        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-main);
            text-align: left;
            cursor: pointer;
            gap: 12px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--color-surface);
        }

        .faq-question i {
            flex-shrink: 0;
            color: var(--color-primary);
            transition: transform var(--transition-smooth);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

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

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--color-muted);
            line-height: 1.75;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.93rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            color: #ffffff;
            text-align: center;
            padding: 56px 0;
        }

        .cta-section .section-title {
            color: #ffffff;
        }

        .cta-section .section-desc {
            color: rgba(255, 255, 255, 0.8);
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 1.05rem;
            font-weight: 700;
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 20px rgba(200, 150, 62, 0.35);
            transition: all var(--transition-smooth);
            text-decoration: none;
            margin-top: 20px;
        }

        .btn-cta:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 28px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 40px 0;
            }
            .btn-cta {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        /* Footer */
        .site-footer {
            background: #0F1A2E;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 10px;
        }

        .footer-brand p {
            margin: 0;
            line-height: 1.65;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-col a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        /* Intro text block */
        .intro-text-block {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            font-size: 1.05rem;
            color: var(--color-text-soft);
            line-height: 1.8;
        }

        @media (max-width: 640px) {
            .intro-text-block {
                font-size: 0.93rem;
                text-align: left;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a3c5e;
            --primary-light: #1e5082;
            --primary-dark: #0f2640;
            --accent: #c8963e;
            --accent-light: #e0b85c;
            --accent-dark: #a07828;
            --bg-white: #ffffff;
            --bg-light: #f6f8fa;
            --bg-warm: #fdfaf5;
            --bg-dark: #0f1a2e;
            --text-main: #1a1f2e;
            --text-soft: #5a6275;
            --text-muted: #8b919e;
            --text-light: #bcc3cf;
            --border-light: #e5e8ed;
            --border-medium: #d5d9e0;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 3px rgba(15, 26, 46, 0.06);
            --shadow-md: 0 4px 14px rgba(15, 26, 46, 0.08);
            --shadow-lg: 0 10px 32px rgba(15, 26, 46, 0.10);
            --shadow-xl: 0 18px 48px rgba(15, 26, 46, 0.12);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-main);
            background-color: var(--bg-white);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        /* ========== HEADER ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .logo-text .accent-dot {
            color: var(--accent);
            display: inline-block;
            margin-left: 0.08em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .btn-outline-sm {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 500;
            border: 1.5px solid var(--border-medium);
            background: transparent;
            color: var(--text-main);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline-sm:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26, 60, 94, 0.03);
        }

        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.3rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: 1.5px solid var(--primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary-sm:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            box-shadow: 0 4px 14px rgba(26, 60, 94, 0.25);
        }

        /* Channel Nav Row */
        .channel-nav-row {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            padding: 0.55rem 0;
            overflow-x: auto;
            white-space: nowrap;
            scrollbar-width: none;
            -ms-overflow-style: none;
            flex-wrap: nowrap;
            border-top: 1px solid var(--border-light);
        }

        .channel-nav-row::-webkit-scrollbar {
            display: none;
        }

        .channel-nav-row a {
            display: inline-block;
            padding: 0.55rem 1.15rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-soft);
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }

        .channel-nav-row a:hover {
            color: var(--primary);
            background: rgba(26, 60, 94, 0.04);
        }

        .channel-nav-row a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(26, 60, 94, 0.28);
        }

        .channel-nav-row a.active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        /* Breadcrumb */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 0.6rem 0;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--text-soft);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-sep {
            color: var(--border-medium);
            font-size: 0.7rem;
        }

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

        /* ========== MAIN CONTAINER ========== */
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* ========== SECTION SPACING ========== */
        .section-gap {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }

        @media (min-width: 768px) {
            .section-gap {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .section-gap-sm {
            padding-top: 2.5rem;
            padding-bottom: 2.5rem;
        }

        @media (min-width: 768px) {
            .section-gap-sm {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }

        /* ========== SECTION TITLES ========== */
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 0.5rem;
        }

        .section-heading {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }

        @media (min-width: 768px) {
            .section-heading {
                font-size: 2rem;
            }
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-soft);
            max-width: 600px;
            line-height: 1.6;
        }

        /* ========== HERO BANNER ========== */
        .hero-banner {
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 3rem 0;
            min-height: 280px;
            display: flex;
            align-items: center;
        }

        @media (min-width: 768px) {
            .hero-banner {
                padding: 5rem 0;
                min-height: 360px;
            }
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.82) 0%, rgba(26, 60, 94, 0.65) 50%, rgba(15, 38, 64, 0.78) 100%);
            z-index: 1;
        }

        .hero-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 700px;
        }

        .hero-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 1.85rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.25;
        }

        @media (min-width: 768px) {
            .hero-banner-content h1 {
                font-size: 2.5rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-banner-content h1 {
                font-size: 2.8rem;
            }
        }

        .hero-banner-content p {
            font-size: 1rem;
            opacity: 0.9;
            line-height: 1.7;
            max-width: 550px;
        }

        @media (min-width: 768px) {
            .hero-banner-content p {
                font-size: 1.1rem;
            }
        }

        /* ========== NEWS CARDS ========== */
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-medium);
        }

        .news-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-light);
        }

        .news-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .news-card-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.7rem;
            border-radius: 9999px;
            letter-spacing: 0.04em;
            z-index: 3;
        }

        .news-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .news-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .news-card-title {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            transition: color var(--transition-fast);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card:hover .news-card-title {
            color: var(--primary);
        }

        .news-card-excerpt {
            font-size: 0.875rem;
            color: var(--text-soft);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition-fast);
            margin-top: auto;
        }

        .news-card-link:hover {
            color: var(--primary-light);
            gap: 0.55rem;
        }

        .news-card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        .news-card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== TIMELINE ========== */
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
            position: relative;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 1.1rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-light);
        }

        @media (min-width: 768px) {
            .timeline-list::before {
                left: 1.4rem;
            }
        }

        .timeline-item {
            display: flex;
            gap: 1rem;
            padding-bottom: 1.5rem;
            position: relative;
            align-items: flex-start;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            flex-shrink: 0;
            width: 0.7rem;
            height: 0.7rem;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 0.45rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 4px rgba(200, 150, 62, 0.15);
        }

        @media (min-width: 768px) {
            .timeline-dot {
                width: 0.85rem;
                height: 0.85rem;
                margin-top: 0.4rem;
            }
        }

        .timeline-content {
            flex: 1;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 1rem 1.25rem;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .timeline-content:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
        }

        .timeline-time {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 0.3rem;
        }

        .timeline-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 0.25rem;
        }

        .timeline-desc {
            font-size: 0.825rem;
            color: var(--text-soft);
            line-height: 1.55;
        }

        /* ========== EXPERT CARD ========== */
        .expert-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .expert-card-img-wrap {
            position: relative;
            aspect-ratio: 3 / 2;
            overflow: hidden;
            background: var(--bg-light);
        }

        .expert-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .expert-card:hover .expert-card-img-wrap img {
            transform: scale(1.04);
        }

        .expert-card-body {
            padding: 1.25rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .expert-card-author {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .expert-card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .expert-card:hover .expert-card-title {
            color: var(--primary);
        }

        .expert-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-soft);
            line-height: 1.55;
            flex: 1;
        }

        /* ========== STAT BADGE CARD ========== */
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent-light);
            transform: translateY(-2px);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.6rem;
            }
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-soft);
            margin-top: 0.35rem;
            font-weight: 500;
        }

        /* ========== SPOTLIGHT CARD ========== */
        .spotlight-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
        }

        @media (min-width: 768px) {
            .spotlight-card {
                flex-direction: row;
            }
        }

        .spotlight-card:hover {
            box-shadow: var(--shadow-xl);
        }

        .spotlight-img-wrap {
            flex: 0 0 auto;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-light);
        }

        @media (min-width: 768px) {
            .spotlight-img-wrap {
                width: 42%;
                aspect-ratio: auto;
            }
        }

        .spotlight-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .spotlight-card:hover .spotlight-img-wrap img {
            transform: scale(1.04);
        }

        .spotlight-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            justify-content: center;
        }

        @media (min-width: 768px) {
            .spotlight-body {
                padding: 2rem;
            }
        }

        .spotlight-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            background: var(--accent);
            padding: 0.3rem 0.75rem;
            border-radius: 9999px;
            letter-spacing: 0.04em;
            align-self: flex-start;
        }

        .spotlight-title {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
        }

        @media (min-width: 768px) {
            .spotlight-title {
                font-size: 1.4rem;
            }
        }

        .spotlight-excerpt {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.65;
        }

        /* ========== CTA BLOCK ========== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 2.5rem 1.5rem;
            text-align: center;
            color: #fff;
        }

        @media (min-width: 768px) {
            .cta-block {
                padding: 3.5rem 2rem;
            }
        }

        .cta-block h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        @media (min-width: 768px) {
            .cta-block h3 {
                font-size: 1.8rem;
            }
        }

        .cta-block p {
            font-size: 0.95rem;
            opacity: 0.85;
            max-width: 500px;
            margin: 0 auto 1.5rem;
            line-height: 1.6;
        }

        .cta-input-group {
            display: flex;
            max-width: 440px;
            margin: 0 auto;
            gap: 0;
            border-radius: 9999px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
        }

        .cta-input-group input {
            flex: 1;
            padding: 0.85rem 1.25rem;
            border: none;
            font-size: 0.95rem;
            color: var(--text-main);
            background: #fff;
            min-width: 0;
        }

        .cta-input-group button {
            padding: 0.85rem 1.6rem;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            white-space: nowrap;
            transition: background var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .cta-input-group button:hover {
            background: var(--accent-light);
        }

        /* ========== FAQ ========== */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 1.5rem;
            height: 1.5rem;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--text-soft);
            transition: all var(--transition-fast);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 1.25rem;
            font-size: 0.875rem;
            color: var(--text-soft);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.25rem 1.1rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #c8d0da;
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 2rem;
            }
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.35rem;
            display: block;
            margin-bottom: 0.6rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            opacity: 0.75;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #a8b3c2;
            padding: 0.3rem 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            opacity: 0.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 768px) {
            .brand-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.6rem;
            }

            .brand-actions {
                width: 100%;
                justify-content: flex-start;
                flex-wrap: wrap;
            }

            .hero-banner-content h1 {
                font-size: 1.5rem;
            }

            .news-card-body {
                padding: 1rem;
            }

            .news-card-title {
                font-size: 0.95rem;
            }

            .cta-input-group {
                flex-direction: column;
                border-radius: var(--radius-md);
                gap: 0.5rem;
                box-shadow: none;
            }

            .cta-input-group input {
                border-radius: var(--radius-md);
                text-align: center;
            }

            .cta-input-group button {
                border-radius: var(--radius-md);
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .channel-nav-row a {
                padding: 0.45rem 0.85rem;
                font-size: 0.8rem;
            }

            .section-heading {
                font-size: 1.4rem;
            }

            .stat-number {
                font-size: 1.7rem;
            }

            .spotlight-body {
                padding: 1rem;
            }

            .spotlight-title {
                font-size: 1.05rem;
            }

            .hero-banner {
                min-height: 220px;
                padding: 2rem 0;
            }
        }