/* roulang page: index */
/* ===== Design Variables ===== */
    :root {
        --primary: #1a1a2e;
        --primary-light: #2d2d4a;
        --accent: #e8a838;
        --accent-hover: #d4942e;
        --accent-light: #fdf3e0;
        --bg: #f5f6fa;
        --bg-white: #ffffff;
        --bg-dark: #0f0f1a;
        --text: #1a1a2e;
        --text-light: #6b7280;
        --text-white: #f9fafb;
        --border: #e5e7eb;
        --border-light: #f0f0f5;
        --radius: 14px;
        --radius-sm: 8px;
        --radius-lg: 20px;
        --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
        --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
        --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        --max-width: 1200px;
        --header-height: 76px;
    }

    /* ===== Reset & Base ===== */
    *,
    *::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: var(--font-family);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background-color: var(--bg);
        min-height: 100vh;
    }

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

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

    button,
    input,
    textarea {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
    }

    button {
        cursor: pointer;
        background: none;
    }

    ul,
    ol {
        list-style: none;
    }

    /* ===== Container ===== */
    .container {
        width: 100%;
        max-width: var(--max-width);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    @media (max-width: 768px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    /* ===== Header / Nav ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: var(--header-height);
        background: rgba(26, 26, 46, 0.95);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(232, 168, 56, 0.15);
        transition: background var(--transition);
    }

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

    .logo {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--text-white);
        letter-spacing: 0.5px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--accent);
        border-radius: 10px;
        color: var(--primary);
        font-size: 1.3rem;
    }

    .logo span {
        color: var(--accent);
    }

    .nav-list {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .nav-list a {
        padding: 8px 20px;
        border-radius: var(--radius-sm);
        color: rgba(255, 255, 255, 0.75);
        font-weight: 500;
        font-size: 0.95rem;
        transition: all var(--transition);
        position: relative;
    }

    .nav-list a:hover {
        color: var(--text-white);
        background: rgba(255, 255, 255, 0.08);
    }

    .nav-list a.active {
        color: var(--accent);
        background: rgba(232, 168, 56, 0.12);
    }

    .nav-list a.active::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        background: var(--accent);
        border-radius: 2px;
    }

    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 28px !important;
        background: var(--accent) !important;
        color: var(--primary) !important;
        border-radius: var(--radius-sm) !important;
        font-weight: 700 !important;
        font-size: 0.9rem !important;
        transition: all var(--transition) !important;
        box-shadow: 0 4px 16px rgba(232, 168, 56, 0.3);
    }

    .nav-cta:hover {
        background: var(--accent-hover) !important;
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(232, 168, 56, 0.4) !important;
        color: var(--primary) !important;
    }

    .nav-cta i {
        font-size: 0.85rem;
    }

    .menu-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
        background: none;
        border: none;
        cursor: pointer;
    }

    .menu-toggle span {
        display: block;
        width: 26px;
        height: 2.5px;
        background: var(--text-white);
        border-radius: 2px;
        transition: all var(--transition);
    }

    @media (max-width: 768px) {
        .menu-toggle {
            display: flex;
        }

        .nav-list {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(15, 15, 26, 0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 20px 24px 32px;
            gap: 4px;
            transform: translateY(-120%);
            opacity: 0;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border-bottom: 2px solid rgba(232, 168, 56, 0.2);
            pointer-events: none;
        }

        .nav-list.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: all;
        }

        .nav-list a {
            padding: 14px 20px;
            font-size: 1.05rem;
            width: 100%;
            text-align: center;
        }

        .nav-list a.active::after {
            display: none;
        }

        .nav-cta {
            margin-top: 8px;
            justify-content: center;
            width: 100%;
        }
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        min-height: 92vh;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--bg-dark);
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        padding: 120px 0 80px;
        overflow: hidden;
    }

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.65) 50%, rgba(15, 15, 26, 0.85) 100%);
        z-index: 1;
    }

    .hero::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 200px;
        background: linear-gradient(to top, var(--bg), transparent);
        z-index: 2;
    }

    .hero-content {
        position: relative;
        z-index: 3;
        text-align: center;
        max-width: 820px;
        padding: 0 24px;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 22px;
        background: rgba(232, 168, 56, 0.18);
        border: 1px solid rgba(232, 168, 56, 0.3);
        border-radius: 50px;
        color: var(--accent);
        font-size: 0.85rem;
        font-weight: 600;
        letter-spacing: 0.5px;
        margin-bottom: 28px;
        backdrop-filter: blur(8px);
    }

    .hero-badge i {
        font-size: 0.75rem;
    }

    .hero h1 {
        font-size: 3.8rem;
        font-weight: 800;
        line-height: 1.15;
        color: var(--text-white);
        margin-bottom: 24px;
        letter-spacing: -0.5px;
    }

    .hero h1 span {
        color: var(--accent);
        position: relative;
    }

    .hero h1 span::after {
        content: '';
        position: absolute;
        bottom: 4px;
        left: 0;
        right: 0;
        height: 6px;
        background: rgba(232, 168, 56, 0.3);
        border-radius: 3px;
    }

    .hero p {
        font-size: 1.2rem;
        color: rgba(255, 255, 255, 0.75);
        max-width: 640px;
        margin: 0 auto 36px;
        line-height: 1.8;
    }

    .hero-actions {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 16px 40px;
        background: var(--accent);
        color: var(--primary);
        font-weight: 700;
        font-size: 1.05rem;
        border-radius: var(--radius-sm);
        transition: all var(--transition);
        box-shadow: 0 8px 32px rgba(232, 168, 56, 0.35);
    }

    .btn-primary:hover {
        background: var(--accent-hover);
        transform: translateY(-3px);
        box-shadow: 0 12px 48px rgba(232, 168, 56, 0.45);
    }

    .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 16px 36px;
        background: rgba(255, 255, 255, 0.08);
        color: var(--text-white);
        font-weight: 600;
        font-size: 1.05rem;
        border-radius: var(--radius-sm);
        border: 1.5px solid rgba(255, 255, 255, 0.2);
        transition: all var(--transition);
    }

    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.35);
        transform: translateY(-3px);
    }

    .hero-stats {
        display: flex;
        justify-content: center;
        gap: 48px;
        margin-top: 56px;
        flex-wrap: wrap;
    }

    .hero-stat {
        text-align: center;
    }

    .hero-stat-number {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--accent);
        line-height: 1.2;
    }

    .hero-stat-label {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.55);
        margin-top: 4px;
    }

    @media (max-width: 1024px) {
        .hero h1 {
            font-size: 2.8rem;
        }
        .hero p {
            font-size: 1.05rem;
        }
        .hero-stats {
            gap: 32px;
        }
        .hero-stat-number {
            font-size: 2rem;
        }
    }

    @media (max-width: 768px) {
        .hero {
            min-height: 86vh;
            padding: 100px 0 60px;
        }
        .hero h1 {
            font-size: 2.2rem;
        }
        .hero p {
            font-size: 0.95rem;
        }
        .hero-actions {
            flex-direction: column;
            width: 100%;
        }
        .btn-primary,
        .btn-secondary {
            width: 100%;
            justify-content: center;
            padding: 14px 28px;
        }
        .hero-stats {
            gap: 24px;
            flex-direction: column;
            align-items: center;
        }
    }

    @media (max-width: 520px) {
        .hero h1 {
            font-size: 1.8rem;
        }
        .hero-badge {
            font-size: 0.75rem;
            padding: 6px 16px;
        }
    }

    /* ===== Section ===== */
    .section {
        padding: 90px 0;
    }

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

    .section-dark {
        background: var(--primary);
        color: var(--text-white);
    }

    .section-header {
        text-align: center;
        margin-bottom: 56px;
    }

    .section-header h2 {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--text);
        margin-bottom: 16px;
        letter-spacing: -0.3px;
    }

    .section-dark .section-header h2 {
        color: var(--text-white);
    }

    .section-header p {
        font-size: 1.1rem;
        color: var(--text-light);
        max-width: 600px;
        margin: 0 auto;
        line-height: 1.7;
    }

    .section-dark .section-header p {
        color: rgba(255, 255, 255, 0.65);
    }

    .section-header .accent-line {
        display: inline-block;
        width: 60px;
        height: 4px;
        background: var(--accent);
        border-radius: 2px;
        margin-bottom: 20px;
    }

    @media (max-width: 768px) {
        .section {
            padding: 60px 0;
        }
        .section-header h2 {
            font-size: 1.8rem;
        }
        .section-header p {
            font-size: 0.95rem;
        }
        .section-header {
            margin-bottom: 36px;
        }
    }

    /* ===== Cards Grid ===== */
    .grid-3 {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

    .grid-2 {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }

    .grid-4 {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    @media (max-width: 1024px) {
        .grid-4 {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .grid-3 {
            grid-template-columns: 1fr;
        }
        .grid-2 {
            grid-template-columns: 1fr;
        }
        .grid-4 {
            grid-template-columns: 1fr;
        }
    }

    /* ===== Card ===== */
    .card {
        background: var(--bg-white);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        overflow: hidden;
        transition: all var(--transition);
        border: 1px solid var(--border-light);
    }

    .card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
    }

    .card-image {
        width: 100%;
        aspect-ratio: 16 / 10;
        object-fit: cover;
        display: block;
    }

    .card-body {
        padding: 24px 26px 28px;
    }

    .card-body h3 {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 10px;
        line-height: 1.4;
    }

    .card-body p {
        font-size: 0.92rem;
        color: var(--text-light);
        line-height: 1.7;
    }

    .card-tag {
        display: inline-block;
        padding: 4px 14px;
        background: var(--accent-light);
        color: var(--accent-hover);
        font-size: 0.75rem;
        font-weight: 600;
        border-radius: 50px;
        margin-bottom: 12px;
    }

    .card-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-top: 16px;
        font-size: 0.82rem;
        color: var(--text-light);
    }

    .card-meta i {
        margin-right: 4px;
        font-size: 0.75rem;
    }

    .card-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--accent);
        font-weight: 600;
        font-size: 0.9rem;
        margin-top: 14px;
        transition: gap var(--transition);
    }

    .card-link:hover {
        gap: 12px;
    }

    /* ===== Feature / Icon Cards ===== */
    .feature-card {
        background: var(--bg-white);
        border-radius: var(--radius);
        padding: 36px 30px;
        text-align: center;
        box-shadow: var(--shadow);
        border: 1px solid var(--border-light);
        transition: all var(--transition);
    }

    .feature-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
    }

    .feature-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 68px;
        height: 68px;
        background: var(--accent-light);
        color: var(--accent);
        font-size: 1.8rem;
        border-radius: 18px;
        margin-bottom: 20px;
        transition: all var(--transition);
    }

    .feature-card:hover .feature-icon {
        background: var(--accent);
        color: var(--primary);
        transform: scale(1.05);
    }

    .feature-card h3 {
        font-size: 1.15rem;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .feature-card p {
        font-size: 0.9rem;
        color: var(--text-light);
        line-height: 1.7;
    }

    /* ===== Category Cards ===== */
    .category-card {
        position: relative;
        border-radius: var(--radius);
        overflow: hidden;
        aspect-ratio: 4 / 3;
        display: flex;
        align-items: flex-end;
        box-shadow: var(--shadow);
        transition: all var(--transition);
        cursor: pointer;
    }

    .category-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
    }

    .category-card img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .category-card:hover img {
        transform: scale(1.08);
    }

    .category-card-overlay {
        position: relative;
        z-index: 2;
        width: 100%;
        padding: 28px 24px;
        background: linear-gradient(to top, rgba(26, 26, 46, 0.92) 0%, rgba(26, 26, 46, 0.3) 70%, transparent 100%);
    }

    .category-card-overlay h3 {
        color: var(--text-white);
        font-size: 1.3rem;
        font-weight: 700;
        margin-bottom: 4px;
    }

    .category-card-overlay p {
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.85rem;
    }

    /* ===== Stats ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .stat-item {
        text-align: center;
        padding: 36px 20px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: var(--radius);
        border: 1px solid rgba(255, 255, 255, 0.08);
        transition: all var(--transition);
    }

    .stat-item:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(232, 168, 56, 0.25);
    }

    .stat-number {
        font-size: 2.8rem;
        font-weight: 800;
        color: var(--accent);
        line-height: 1.2;
        margin-bottom: 6px;
    }

    .stat-label {
        font-size: 0.95rem;
        color: rgba(255, 255, 255, 0.6);
        font-weight: 500;
    }

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

    @media (max-width: 520px) {
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .stat-number {
            font-size: 2.2rem;
        }
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--bg-white);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        border: 1px solid var(--border-light);
        overflow: hidden;
        transition: all var(--transition);
    }

    .faq-item:hover {
        border-color: var(--accent);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 26px;
        font-size: 1.05rem;
        font-weight: 600;
        color: var(--text);
        cursor: pointer;
        background: none;
        width: 100%;
        text-align: left;
        transition: all var(--transition);
    }

    .faq-question i {
        font-size: 0.85rem;
        color: var(--text-light);
        transition: transform var(--transition);
    }

    .faq-item.active .faq-question i {
        transform: rotate(180deg);
        color: var(--accent);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease, padding 0.4s ease;
        padding: 0 26px;
        color: var(--text-light);
        font-size: 0.95rem;
        line-height: 1.8;
    }

    .faq-item.active .faq-answer {
        max-height: 300px;
        padding: 0 26px 22px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: var(--primary);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        background-blend-mode: overlay;
        position: relative;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(26, 26, 46, 0.88);
    }

    .cta-content {
        position: relative;
        z-index: 2;
        text-align: center;
        padding: 80px 24px;
    }

    .cta-content h2 {
        font-size: 2.6rem;
        font-weight: 800;
        color: var(--text-white);
        margin-bottom: 16px;
    }

    .cta-content p {
        font-size: 1.1rem;
        color: rgba(255, 255, 255, 0.7);
        max-width: 560px;
        margin: 0 auto 32px;
    }

    .cta-content .btn-primary {
        font-size: 1.1rem;
        padding: 18px 48px;
    }

    @media (max-width: 768px) {
        .cta-content h2 {
            font-size: 1.8rem;
        }
        .cta-content p {
            font-size: 0.95rem;
        }
        .cta-content {
            padding: 56px 16px;
        }
    }

    /* ===== Content List (CMS) ===== */
    .content-list {
        display: grid;
        gap: 20px;
    }

    .content-item {
        display: flex;
        align-items: flex-start;
        gap: 20px;
        padding: 20px 24px;
        background: var(--bg-white);
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-light);
        transition: all var(--transition);
    }

    .content-item:hover {
        border-color: var(--accent);
        box-shadow: var(--shadow);
        transform: translateX(4px);
    }

    .content-item-icon {
        flex-shrink: 0;
        width: 48px;
        height: 48px;
        background: var(--accent-light);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--accent);
        font-size: 1.1rem;
    }

    .content-item-body {
        flex: 1;
        min-width: 0;
    }

    .content-item-body h4 {
        font-size: 1.05rem;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 6px;
        line-height: 1.4;
    }

    .content-item-body p {
        font-size: 0.88rem;
        color: var(--text-light);
        line-height: 1.6;
    }

    .content-item-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-top: 8px;
        font-size: 0.78rem;
        color: var(--text-light);
    }

    .content-item-meta .category-badge {
        padding: 2px 12px;
        background: var(--accent-light);
        color: var(--accent-hover);
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.72rem;
    }

    .content-item .content-link {
        flex-shrink: 0;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--accent);
        font-weight: 600;
        font-size: 0.85rem;
        padding: 6px 0;
        transition: gap var(--transition);
    }

    .content-item .content-link:hover {
        gap: 12px;
    }

    @media (max-width: 768px) {
        .content-item {
            flex-direction: column;
            gap: 12px;
            padding: 16px 18px;
        }
        .content-item .content-link {
            align-self: flex-end;
        }
    }

    /* ===== Empty State ===== */
    .empty-state {
        text-align: center;
        padding: 48px 24px;
        color: var(--text-light);
    }

    .empty-state i {
        font-size: 3rem;
        color: var(--border);
        margin-bottom: 16px;
    }

    .empty-state p {
        font-size: 1rem;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255, 255, 255, 0.7);
        padding: 60px 0 32px;
        border-top: 1px solid rgba(232, 168, 56, 0.1);
    }

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

    .footer-brand .logo {
        font-size: 1.3rem;
        margin-bottom: 16px;
    }

    .footer-brand p {
        font-size: 0.88rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.5);
        max-width: 320px;
    }

    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 18px;
    }

    .footer-col a {
        display: block;
        padding: 6px 0;
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.55);
        transition: all var(--transition);
    }

    .footer-col a:hover {
        color: var(--accent);
        padding-left: 6px;
    }

    .footer-bottom {
        padding-top: 28px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.82rem;
        color: rgba(255, 255, 255, 0.35);
    }

    .footer-bottom a {
        color: rgba(255, 255, 255, 0.45);
    }

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

    .footer-social {
        display: flex;
        gap: 14px;
    }

    .footer-social a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.06);
        color: rgba(255, 255, 255, 0.5);
        font-size: 1rem;
        transition: all var(--transition);
    }

    .footer-social a:hover {
        background: var(--accent);
        color: var(--primary);
        padding-left: 0;
        transform: translateY(-3px);
    }

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

    @media (max-width: 768px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .footer-brand p {
            max-width: 100%;
        }
    }

    /* ===== Utility ===== */
    .text-center {
        text-align: center;
    }

    .mt-16 {
        margin-top: 16px;
    }
    .mt-24 {
        margin-top: 24px;
    }
    .mt-32 {
        margin-top: 32px;
    }
    .mt-48 {
        margin-top: 48px;
    }

    .gap-8 {
        gap: 8px;
    }
    .gap-16 {
        gap: 16px;
    }

    /* ===== Animations ===== */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .animate-fade-in {
        animation: fadeInUp 0.7s ease forwards;
    }

    .animate-delay-1 {
        animation-delay: 0.15s;
    }
    .animate-delay-2 {
        animation-delay: 0.3s;
    }
    .animate-delay-3 {
        animation-delay: 0.45s;
    }
    .animate-delay-4 {
        animation-delay: 0.6s;
    }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #264653;
            --accent: #f4a261;
            --accent-light: #ffb703;
            --bg-dark: #0b1a2e;
            --bg-darker: #071220;
            --bg-card: #ffffff;
            --bg-light: #f8f9fa;
            --bg-mid: #e9ecef;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: #dee2e6;
            --border-light: #f0f0f0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --shadow-hover: 0 16px 48px rgba(230,57,70,0.18);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            padding-top: var(--header-height);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; padding: 0; margin: 0; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); }
        .section-title {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header .section-title {
            position: relative;
            display: inline-block;
        }
        .section-header .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 12px auto 0;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.25);
        }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }
        .btn .fa-arrow-right { transition: transform 0.3s; }
        .btn:hover .fa-arrow-right { transform: translateX(4px); }

        /* ===== Badge / Tag ===== */
        .badge-custom {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(230,57,70,0.10);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .badge-custom.live { background: rgba(230,57,70,0.15); color: var(--primary); }
        .badge-custom.upcoming { background: rgba(29,53,87,0.10); color: var(--secondary); }
        .badge-custom.hot { background: rgba(244,162,97,0.15); color: #d68a3c; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11,26,46,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(7,18,32,0.96);
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--text-white); opacity: 0.92; }
        .logo-icon { color: var(--primary); font-size: 1.6rem; }
        .logo span { color: var(--primary); font-weight: 700; }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-list li a:hover {
            color: #fff;
            background: rgba(255,255,255,0.08);
        }
        .nav-list li a.active {
            color: #fff;
            background: rgba(230,57,70,0.20);
        }
        .nav-list li a.nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
        }
        .nav-list li a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(230,57,70,0.35);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: var(--transition);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,26,46,0.88) 0%, rgba(7,18,32,0.70) 100%);
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 2.8rem;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            max-width: 620px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb {
            display: flex;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            margin-bottom: 1.2rem;
        }
        .page-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
        .page-banner .breadcrumb a:hover { color: #fff; }
        .page-banner .breadcrumb .sep { color: rgba(255,255,255,0.3); }

        /* ===== Card ===== */
        .card-modern {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }
        .card-modern:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-modern .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-modern .card-body {
            padding: 22px 24px 24px;
        }
        .card-modern .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .card-modern .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card-modern .card-title a { color: var(--text-primary); }
        .card-modern .card-title a:hover { color: var(--primary); }
        .card-modern .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .card-modern .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .card-modern .card-meta i { margin-right: 4px; }

        /* ===== Sport Category Grid ===== */
        .sport-cat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
            height: 100%;
        }
        .sport-cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230,57,70,0.20);
        }
        .sport-cat-card .icon-wrap {
            width: 68px;
            height: 68px;
            margin: 0 auto 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            background: rgba(230,57,70,0.08);
            color: var(--primary);
            transition: var(--transition);
        }
        .sport-cat-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .sport-cat-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .sport-cat-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }
        .sport-cat-card .count {
            font-size: 0.82rem;
            color: var(--text-light);
        }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.08);
            backdrop-filter: blur(4px);
        }
        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .stat-item .number span { color: var(--primary); }
        .stat-item .label {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.65);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(230,57,70,0.15); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            gap: 12px;
        }
        .faq-question i { color: var(--primary); transition: transform 0.3s; font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,26,46,0.85) 0%, rgba(7,18,32,0.75) 100%);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 2.2rem;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.7);
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: 12px; display: inline-flex; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 340px; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .footer-social { display: flex; gap: 14px; margin-top: 12px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: var(--transition);
            padding: 0;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            padding: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }
        .mt-16 { margin-top: 16px; }

        /* ===== Section Spacing ===== */
        section { padding: 70px 0; }
        .bg-white { background: #fff; }
        .bg-light-custom { background: var(--bg-light); }
        .bg-dark-custom {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .bg-dark-custom .section-title { color: var(--text-white); }
        .bg-dark-custom .section-subtitle { color: rgba(255,255,255,0.7); }

        /* ===== Grid ===== */
        .row.gap-4 { --bs-gap: 1.5rem; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .page-banner h1 { font-size: 2.2rem; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(7,18,32,0.98);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                backdrop-filter: blur(16px);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-list li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-list li a.nav-cta {
                margin-top: 6px;
                justify-content: center;
            }
            .nav-toggle { display: flex; }
            .page-banner { padding: 60px 0 50px; min-height: 260px; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 0.95rem; }
            .section-title { font-size: 1.6rem; }
            section { padding: 50px 0; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .number { font-size: 1.8rem; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section .btn-group { flex-direction: column; align-items: center; }
            .sport-cat-card { padding: 24px 16px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.5rem; }
            .page-banner p { font-size: 0.88rem; }
            .section-title { font-size: 1.35rem; }
            .card-modern .card-body { padding: 16px 18px 20px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 20px 12px; }
            .stat-item .number { font-size: 1.5rem; }
            .btn-lg { padding: 14px 24px; font-size: 0.95rem; }
            .logo { font-size: 1.2rem; }
            .logo-icon { font-size: 1.3rem; }
        }

        /* ===== Utility ===== */
        .text-primary-custom { color: var(--primary); }
        .mb-0 { margin-bottom: 0; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .gap-3 { gap: 1rem; }
        .gap-4 { gap: 1.5rem; }

        /* ===== Structured Data (hidden) ===== */
        .json-ld { display: none; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0f1a2e;
            --color-primary-light: #1a2d4a;
            --color-accent: #f5b81b;
            --color-accent-hover: #d9a315;
            --color-accent-light: #fef7e0;
            --color-bg: #f5f7fa;
            --color-bg-alt: #eef1f5;
            --color-bg-dark: #0b111e;
            --color-text: #1a1a2e;
            --color-text-soft: #4a4a5e;
            --color-text-light: #8a8a9e;
            --color-text-inverse: #ffffff;
            --color-border: #e0e3e8;
            --color-border-light: #eef0f3;
            --color-card-bg: #ffffff;
            --color-success: #2ecc71;
            --color-error: #e74c3c;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.14);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --container-pad: 24px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-accent-hover); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul { list-style: none; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            transition: var(--transition);
            height: var(--nav-height);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            gap: 8px;
        }
        .logo .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: var(--color-accent);
            border-radius: 10px;
            font-size: 1.2rem;
        }
        .logo span { color: var(--color-accent); font-weight: 700; }
        .logo:hover { color: var(--color-primary); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list li a:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
        }
        .nav-list li a.active {
            color: var(--color-text);
            background: var(--color-accent-light);
            font-weight: 600;
        }
        .nav-list li a.nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            padding: 10px 24px;
            border-radius: 40px;
            box-shadow: 0 4px 14px rgba(245,184,27,0.35);
        }
        .nav-list li a.nav-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 20px rgba(245,184,27,0.45);
            transform: translateY(-2px);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }

        /* ===== Hero Banner (文章顶部) ===== */
        .article-hero {
            position: relative;
            margin-top: var(--nav-height);
            min-height: 380px;
            display: flex;
            align-items: flex-end;
            background: var(--color-bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-radius: 0;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,17,30,0.88) 0%, rgba(11,17,30,0.55) 70%, rgba(11,17,30,0.30) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            padding-top: 80px;
            padding-bottom: 56px;
            width: 100%;
        }
        .article-hero .hero-category {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 40px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-text-inverse);
            line-height: 1.25;
            max-width: 840px;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .article-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
        }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--color-accent); }
        .article-hero .hero-meta span { display: inline-flex; align-items: center; }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 0.85rem;
            color: var(--color-text-light);
        }
        .breadcrumb a { color: var(--color-text-soft); }
        .breadcrumb a:hover { color: var(--color-accent-hover); }
        .breadcrumb .sep { margin: 0 10px; color: var(--color-border); }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--color-border-light);
        }
        .article-body .article-summary {
            font-size: 1.15rem;
            color: var(--color-text-soft);
            line-height: 1.8;
            padding-bottom: 24px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--color-border-light);
            font-weight: 400;
        }
        .article-body .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--color-text);
        }
        .article-body .article-content p {
            margin-bottom: 1.4em;
        }
        .article-body .article-content h2,
        .article-body .article-content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            font-weight: 700;
            color: var(--color-primary);
        }
        .article-body .article-content h2 { font-size: 1.6rem; }
        .article-body .article-content h3 { font-size: 1.25rem; }
        .article-body .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .article-content ul, 
        .article-body .article-content ol {
            padding-left: 1.6em;
            margin-bottom: 1.4em;
        }
        .article-body .article-content li {
            margin-bottom: 0.5em;
        }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--color-accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--color-accent-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-soft);
            font-style: italic;
        }
        .article-body .article-content a {
            color: var(--color-accent-hover);
            text-decoration: underline;
        }
        .article-body .article-content a:hover {
            color: var(--color-primary);
        }

        /* ===== 文章侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-accent-light);
        }
        .sidebar-card .info-row {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            border-bottom: 1px solid var(--color-border-light);
        }
        .sidebar-card .info-row:last-child { border-bottom: none; }
        .sidebar-card .info-row .label { color: var(--color-text-light); }
        .sidebar-card .info-row .value { font-weight: 500; color: var(--color-text); }
        .sidebar-card .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .tag-list a {
            display: inline-block;
            padding: 4px 14px;
            background: var(--color-bg-alt);
            color: var(--color-text-soft);
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-card .tag-list a:hover {
            background: var(--color-accent-light);
            color: var(--color-primary);
        }

        /* ===== 文章未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--color-text-light);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .not-found-box p {
            color: var(--color-text-soft);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: 40px;
            font-weight: 700;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245,184,27,0.35);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 56px 0 48px;
            background: var(--color-bg-alt);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 32px;
            text-align: center;
        }
        .related-section .section-title i {
            color: var(--color-accent);
            margin-right: 10px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 20px 18px 22px;
        }
        .related-card .card-body .card-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent-hover);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 64px 0;
            background: var(--color-bg-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11,17,30,0.80);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-inverse);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: 50px;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(245,184,27,0.35);
        }
        .cta-section .cta-btn:hover {
            background: var(--color-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(245,184,27,0.45);
            color: var(--color-primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255,255,255,0.75);
            padding: 52px 0 0;
        }
        .site-footer a { color: rgba(255,255,255,0.7); }
        .site-footer a:hover { color: var(--color-accent); }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo {
            color: var(--color-text-inverse);
            margin-bottom: 16px;
            font-size: 1.4rem;
        }
        .footer-brand .logo .logo-icon {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--color-text-inverse);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a i { width: 20px; margin-right: 6px; }
        .footer-social { display: flex; gap: 12px; margin-top: 12px; }
        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--color-accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }

        @media (max-width: 768px) {
            :root { --container-pad: 16px; --nav-height: 64px; }
            .nav-list { display: none; }
            .nav-toggle { display: block; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                padding: 16px 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-md);
            }
            .nav-list.open li a { width: 100%; justify-content: center; padding: 12px 18px; }
            .article-hero { min-height: 280px; }
            .article-hero h1 { font-size: 1.7rem; }
            .article-hero .container { padding-top: 50px; padding-bottom: 32px; }
            .article-body { padding: 24px 20px; }
            .article-layout { gap: 24px; }
            .article-sidebar { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .cta-btn { padding: 14px 28px; font-size: 0.95rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.4rem; }
            .article-hero .hero-meta { flex-direction: column; gap: 6px; font-size: 0.8rem; }
            .article-body .article-summary { font-size: 1rem; }
            .article-body .article-content { font-size: 0.95rem; }
            .related-card .card-img { height: 160px; }
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 1.3rem; }
        }

        /* ===== 工具类 ===== */
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .text-center { text-align: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }