/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-dark: #0f0c29;
            --accent: #f0c040;
            --accent-hover: #e0b030;
            --accent-glow: rgba(240, 192, 64, 0.3);
            --secondary: #4a90d9;
            --secondary-hover: #3a7bc8;
            --dark-bg: #0d0b1a;
            --card-bg: rgba(26, 26, 46, 0.85);
            --card-border: rgba(240, 192, 64, 0.15);
            --text-light: #f5f5f5;
            --text-muted: #b0b0c0;
            --text-dim: #7a7a8a;
            --body-bg: #0d0b1a;
            --body-text: #e0e0e8;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-lg: 24px;
            --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 40px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 60px rgba(0, 0, 0, 0.5);
            --shadow-accent: 0 8px 40px rgba(240, 192, 64, 0.15);
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --section-spacing: 100px;
            --container-max: 1200px;
        }

        /* ===== 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-sans);
            background: var(--body-bg);
            color: var(--body-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        ::selection {
            background: var(--accent);
            color: var(--primary-dark);
        }

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

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-light);
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: clamp(2.6rem, 6vw, 4.5rem);
            letter-spacing: -0.03em;
        }
        h2 {
            font-size: clamp(2rem, 4vw, 3rem);
        }
        h3 {
            font-size: clamp(1.3rem, 2.5vw, 1.75rem);
        }
        h4 {
            font-size: clamp(1.1rem, 2vw, 1.35rem);
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
        }
        .section-title .subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 4px;
            color: var(--accent);
            background: rgba(240, 192, 64, 0.1);
            padding: 6px 20px;
            border-radius: 50px;
            margin-bottom: 16px;
            border: 1px solid rgba(240, 192, 64, 0.2);
        }
        .section-title h2 {
            margin-bottom: 16px;
        }
        .section-title p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.1rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(13, 11, 26, 0.85);
            backdrop-filter: blur(20px) saturate(1.8);
            -webkit-backdrop-filter: blur(20px) saturate(1.8);
            border-bottom: 1px solid rgba(240, 192, 64, 0.08);
            transition: var(--transition);
            padding: 0;
        }
        .site-header.scrolled {
            background: rgba(13, 11, 26, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--text-light);
            letter-spacing: -0.5px;
            padding: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .navbar-brand:hover {
            color: var(--accent);
        }
        .navbar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), #e67e22);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-dark);
            font-weight: 900;
            box-shadow: 0 4px 15px var(--accent-glow);
        }
        .navbar-brand .brand-text {
            background: linear-gradient(135deg, var(--text-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            color: var(--text-muted) !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-light) !important;
            background: rgba(240, 192, 64, 0.08);
        }
        .nav-link.active {
            color: var(--accent) !important;
            background: rgba(240, 192, 64, 0.12);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
            box-shadow: 0 0 12px var(--accent-glow);
        }

        .navbar-toggler {
            border: none;
            padding: 6px;
            color: var(--text-light);
            font-size: 1.5rem;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--accent);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 20% 50%, rgba(240, 192, 64, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(74, 144, 217, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(240, 192, 64, 0.04) 0%, transparent 40%);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(to top, var(--body-bg), transparent);
            pointer-events: none;
        }
        .hero .hero-grid {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(240, 192, 64, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(240, 192, 64, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
            opacity: 0.5;
        }
        .hero .hero-glow {
            position: absolute;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 192, 64, 0.06), transparent 70%);
            top: -200px;
            right: -200px;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 192, 64, 0.1);
            border: 1px solid rgba(240, 192, 64, 0.2);
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 32px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero h1 {
            margin-bottom: 24px;
            background: linear-gradient(135deg, var(--text-light) 30%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.1rem, 1.8vw, 1.35rem);
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Buttons ===== */
        .btn {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.3px;
            position: relative;
            overflow: hidden;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent), #e67e22);
            color: var(--primary-dark);
            box-shadow: 0 4px 25px var(--accent-glow);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 40px var(--accent-glow);
            color: var(--primary-dark);
        }
        .btn-primary-custom:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
        }
        .btn-outline-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(240, 192, 64, 0.05);
            transform: translateY(-3px);
        }
        .btn-outline-custom:active {
            transform: translateY(0);
        }

        .btn-secondary-custom {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-light);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
        }
        .btn-secondary-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
            color: var(--text-light);
        }

        .btn-sm-custom {
            padding: 10px 24px;
            font-size: 0.85rem;
        }

        /* ===== Section Spacing ===== */
        section {
            padding: var(--section-spacing) 0;
            position: relative;
        }

        .section-divider {
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 4px;
            margin: 0 auto 24px;
        }

        /* ===== Features Section ===== */
        .features-section {
            background: linear-gradient(180deg, var(--body-bg) 0%, var(--primary-dark) 100%);
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 40px 32px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
            backdrop-filter: blur(8px);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card:hover {
            transform: translateY(-8px);
            border-color: rgba(240, 192, 64, 0.3);
            box-shadow: var(--shadow-lg), var(--shadow-accent);
        }
        .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 24px;
            background: linear-gradient(135deg, rgba(240, 192, 64, 0.15), rgba(240, 192, 64, 0.05));
            border: 1px solid rgba(240, 192, 64, 0.15);
            color: var(--accent);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            transform: scale(1.1);
            box-shadow: 0 0 30px var(--accent-glow);
        }
        .feature-card h3 {
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== Games Section ===== */
        .games-section {
            background: var(--body-bg);
        }
        .game-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            cursor: pointer;
        }
        .game-card:hover {
            transform: translateY(-8px);
            border-color: rgba(240, 192, 64, 0.25);
            box-shadow: var(--shadow-lg), var(--shadow-accent);
        }
        .game-card .game-thumb {
            height: 200px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .game-card .game-thumb .game-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: var(--transition);
        }
        .game-card:hover .game-thumb .game-overlay {
            opacity: 1;
        }
        .game-card .game-thumb .game-overlay i {
            font-size: 3rem;
            color: var(--accent);
            filter: drop-shadow(0 0 20px var(--accent-glow));
        }
        .game-card .game-thumb .game-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.7rem;
            font-weight: 800;
            padding: 4px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .game-card .game-body {
            padding: 24px;
        }
        .game-card .game-body h4 {
            margin-bottom: 8px;
        }
        .game-card .game-body .game-meta {
            display: flex;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 12px;
        }
        .game-card .game-body .game-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .game-card .game-body .game-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .game-body .game-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .game-card .game-body .game-tags .tag {
            background: rgba(240, 192, 64, 0.08);
            color: var(--accent);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            border: 1px solid rgba(240, 192, 64, 0.12);
        }

        /* ===== Categories Section ===== */
        .categories-section {
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--body-bg) 100%);
        }
        .category-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .category-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .category-card:hover::after {
            transform: scaleX(1);
        }
        .category-card:hover {
            transform: translateY(-6px);
            border-color: rgba(240, 192, 64, 0.2);
            box-shadow: var(--shadow-md);
        }
        .category-card .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(240, 192, 64, 0.12), rgba(74, 144, 217, 0.08));
            border: 1px solid rgba(240, 192, 64, 0.1);
            color: var(--accent);
            transition: var(--transition);
        }
        .category-card:hover .cat-icon {
            transform: scale(1.08);
            box-shadow: 0 0 25px var(--accent-glow);
        }
        .category-card h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
        }
        .category-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .category-card .btn {
            padding: 8px 24px;
            font-size: 0.85rem;
        }

        /* ===== News / CMS Section ===== */
        .news-section {
            background: var(--body-bg);
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius-sm);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(240, 192, 64, 0.2);
            box-shadow: var(--shadow-md);
        }
        .news-card .news-category {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--accent);
            background: rgba(240, 192, 64, 0.08);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
            align-self: flex-start;
            border: 1px solid rgba(240, 192, 64, 0.1);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .news-card .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-title a {
            color: inherit;
        }
        .news-card .news-title a:hover {
            color: var(--accent);
        }
        .news-card .news-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-dim);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 14px;
        }
        .news-card .news-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-dim);
            background: var(--card-bg);
            border-radius: var(--border-radius);
            border: 1px dashed rgba(240, 192, 64, 0.15);
        }
        .news-empty i {
            font-size: 3rem;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        .news-empty p {
            font-size: 1.05rem;
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: linear-gradient(160deg, var(--primary-dark), var(--primary));
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 30% 50%, rgba(240, 192, 64, 0.05), transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(74, 144, 217, 0.04), transparent 60%);
            pointer-events: none;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            position: relative;
        }
        .stat-item .stat-number {
            font-size: clamp(2.8rem, 5vw, 4rem);
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), #e67e22);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 1px;
        }
        .stat-item .stat-icon {
            font-size: 1.8rem;
            color: rgba(240, 192, 64, 0.2);
            margin-bottom: 12px;
        }

        /* ===== Testimonials ===== */
        .testimonials-section {
            background: var(--body-bg);
        }
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px 28px;
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            border-color: rgba(240, 192, 64, 0.2);
            box-shadow: var(--shadow-md);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: rgba(240, 192, 64, 0.15);
            margin-bottom: 16px;
            line-height: 1;
        }
        .testimonial-card .quote-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-style: italic;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .testimonial-card .quote-author {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 16px;
        }
        .testimonial-card .quote-author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary-dark);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .testimonial-card .quote-author .author-info strong {
            display: block;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .testimonial-card .quote-author .author-info span {
            color: var(--text-dim);
            font-size: 0.8rem;
        }
        .testimonial-card .quote-stars {
            color: var(--accent);
            font-size: 0.85rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: linear-gradient(180deg, var(--body-bg) 0%, var(--primary-dark) 100%);
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 192, 64, 0.15);
        }
        .faq-item .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            color: var(--text-light);
            font-size: 1rem;
            transition: var(--transition);
            user-select: none;
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            color: var(--accent);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 0.85rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item .faq-answer a {
            color: var(--accent);
            text-decoration: underline;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--primary-dark), var(--primary));
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 50% 50%, rgba(240, 192, 64, 0.06), transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(74, 144, 217, 0.04), transparent 50%);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--text-muted);
            font-size: 1.15rem;
            max-width: 600px;
            margin: 0 auto 36px;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid rgba(240, 192, 64, 0.06);
            padding: 60px 0 30px;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(240, 192, 64, 0.15), transparent);
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #e67e22);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary-dark);
            font-weight: 900;
        }
        .footer-desc {
            color: var(--text-dim);
            font-size: 0.9rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .footer-links a i {
            font-size: 0.6rem;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .footer-bottom p {
            color: var(--text-dim);
            font-size: 0.82rem;
            margin: 0;
        }
        .footer-bottom .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-bottom .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-bottom .footer-social a:hover {
            background: rgba(240, 192, 64, 0.1);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }

        /* ===== Back to Top ===== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 20px var(--accent-glow);
            transition: var(--transition);
            z-index: 1040;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .back-to-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px var(--accent-glow);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --section-spacing: 70px;
            }
            .hero {
                min-height: 80vh;
                padding: 120px 24px 60px;
            }
            .game-card .game-thumb {
                height: 170px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 60px;
            }
            .navbar-brand {
                font-size: 1.3rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .hero {
                min-height: 70vh;
                padding: 110px 20px 50px;
            }
            .hero h1 {
                font-size: clamp(2rem, 10vw, 2.8rem);
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .section-title {
                margin-bottom: 40px;
            }
            .section-title h2 {
                font-size: clamp(1.6rem, 6vw, 2rem);
            }
            .feature-card,
            .category-card,
            .testimonial-card {
                padding: 28px 20px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: clamp(2rem, 8vw, 2.8rem);
            }
            .news-card {
                padding: 20px 18px;
            }
            .faq-item .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }
            .cta-section {
                padding: 70px 0;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .cta-actions .btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 1rem;
            }
            .navbar-collapse {
                background: rgba(13, 11, 26, 0.98);
                border-radius: 16px;
                padding: 16px;
                margin-top: 12px;
                border: 1px solid rgba(240, 192, 64, 0.08);
                backdrop-filter: blur(20px);
            }
            .navbar-nav {
                gap: 0;
            }
            .nav-link {
                padding: 12px 16px !important;
                border-radius: 8px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(240, 192, 64, 0.15);
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-spacing: 50px;
            }
            .container {
                padding: 0 16px;
            }
            .hero {
                padding: 100px 16px 40px;
                min-height: 65vh;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 6px 16px;
            }
            .game-card .game-thumb {
                height: 140px;
            }
            .game-card .game-body {
                padding: 18px;
            }
            .game-card .game-body .game-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .feature-card,
            .category-card,
            .testimonial-card {
                padding: 24px 16px;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .footer-links {
                text-align: center;
            }
            .footer-links a {
                justify-content: center;
            }
            .footer-desc {
                max-width: 100%;
                text-align: center;
            }
            .footer-brand {
                justify-content: center;
            }
            .footer-heading {
                text-align: center;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }
        }

        /* ===== Animation Helpers ===== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Bootstrap Overrides ===== */
        .row.g-4 {
            --bs-gutter-x: 1.5rem;
            --bs-gutter-y: 1.5rem;
        }
        @media (max-width: 768px) {
            .row.g-4 {
                --bs-gutter-x: 1rem;
                --bs-gutter-y: 1rem;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #e63e3e;
        --primary-dark: #c62828;
        --primary-light: #ff6b6b;
        --secondary: #1a1a2e;
        --accent: #f5c518;
        --bg-body: #f8f9fa;
        --bg-card: #ffffff;
        --bg-dark: #16213e;
        --text-primary: #1a1a2e;
        --text-secondary: #6c757d;
        --text-light: #f8f9fa;
        --text-muted: #adb5bd;
        --border-color: #e9ecef;
        --border-light: rgba(255,255,255,0.12);
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --radius-xl: 32px;
        --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 16px 48px rgba(0,0,0,0.14);
        --shadow-hover: 0 20px 40px rgba(230,62,62,0.15);
        --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        --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);
        background: var(--bg-body);
        color: var(--text-primary);
        line-height: 1.7;
        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; border-radius: var(--radius-sm); }
    .container { max-width: 1200px; padding: 0 20px; }

    /* ===== Header / Nav ===== */
    .site-header {
        position: fixed; top: 0; left: 0; right: 0; z-index: 1050;
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
        height: var(--header-height);
        transition: var(--transition);
    }
    .site-header .container { height: 100%; display: flex; align-items: center; }
    .site-header .navbar { width: 100%; padding: 0; }
    .navbar-brand {
        display: flex; align-items: center; gap: 12px;
        font-weight: 800; font-size: 1.5rem; color: var(--text-primary) !important;
        padding: 0; margin: 0;
    }
    .navbar-brand .brand-icon {
        display: inline-flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff; font-weight: 900; font-size: 1.4rem;
        box-shadow: 0 4px 12px rgba(230,62,62,0.3);
    }
    .navbar-brand .brand-text { background: linear-gradient(135deg, var(--text-primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .navbar-toggler {
        border: none; padding: 8px 12px; font-size: 1.4rem; color: var(--text-primary);
        background: rgba(230,62,62,0.08); border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .navbar-toggler:hover { background: rgba(230,62,62,0.16); }
    .navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--primary); outline-offset: 2px; }
    .navbar-nav { gap: 4px; }
    .navbar-nav .nav-item { position: relative; }
    .navbar-nav .nav-link {
        padding: 8px 20px !important; font-weight: 600; font-size: 0.95rem;
        color: var(--text-secondary) !important; border-radius: 100px;
        transition: var(--transition); position: relative;
    }
    .navbar-nav .nav-link:hover { color: var(--primary) !important; background: rgba(230,62,62,0.06); }
    .navbar-nav .nav-link.active {
        color: #fff !important; background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        box-shadow: 0 4px 16px rgba(230,62,62,0.35);
    }
    .navbar-nav .nav-link.active:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(230,62,62,0.45); }
    @media (max-width: 767px) {
        .navbar-collapse {
            background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
            border-radius: var(--radius-md); padding: 16px;
            margin-top: 12px; box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }
        .navbar-nav { gap: 2px; }
        .navbar-nav .nav-link { padding: 12px 16px !important; border-radius: var(--radius-sm); }
    }

    /* ===== Hero 文章头图 ===== */
    .article-hero {
        position: relative; padding: 60px 0 40px;
        background: linear-gradient(135deg, var(--secondary) 0%, #0f3460 100%);
        color: var(--text-light); overflow: hidden;
    }
    .article-hero::before {
        content: ''; position: absolute; inset: 0;
        background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        opacity: 0.5;
    }
    .article-hero .container { position: relative; z-index: 2; }
    .article-hero .breadcrumb-custom {
        display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
        font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-bottom: 20px;
    }
    .article-hero .breadcrumb-custom a { color: rgba(255,255,255,0.75); }
    .article-hero .breadcrumb-custom a:hover { color: var(--accent); }
    .article-hero .breadcrumb-custom span { color: rgba(255,255,255,0.4); }
    .article-hero h1 {
        font-size: 2.6rem; font-weight: 900; line-height: 1.25;
        margin-bottom: 16px; letter-spacing: -0.02em;
        background: linear-gradient(135deg, #fff 60%, rgba(255,255,255,0.7));
        -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .article-meta-bar {
        display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center;
        font-size: 0.95rem; color: rgba(255,255,255,0.7);
    }
    .article-meta-bar .badge-cat {
        display: inline-block; padding: 4px 16px; border-radius: 100px;
        background: var(--accent); color: #1a1a2e; font-weight: 700; font-size: 0.8rem;
        text-transform: uppercase; letter-spacing: 0.03em;
    }
    .article-meta-bar i { margin-right: 6px; opacity: 0.7; }
    @media (max-width: 768px) {
        .article-hero { padding: 40px 0 28px; }
        .article-hero h1 { font-size: 1.8rem; }
        .article-meta-bar { gap: 12px 20px; font-size: 0.85rem; }
    }
    @media (max-width: 520px) {
        .article-hero h1 { font-size: 1.4rem; }
    }

    /* ===== Article Main ===== */
    .article-main { padding: 40px 0 60px; }
    .article-content {
        background: var(--bg-card); border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm); padding: 40px;
        border: 1px solid var(--border-color);
    }
    .article-content .content-body {
        font-size: 1.05rem; line-height: 1.9; color: var(--text-primary);
    }
    .article-content .content-body h2,
    .article-content .content-body h3,
    .article-content .content-body h4 {
        margin-top: 32px; margin-bottom: 16px; font-weight: 700;
        color: var(--text-primary);
    }
    .article-content .content-body h2 { font-size: 1.6rem; }
    .article-content .content-body h3 { font-size: 1.3rem; }
    .article-content .content-body p { margin-bottom: 20px; }
    .article-content .content-body ul, .article-content .content-body ol { margin-bottom: 20px; padding-left: 24px; }
    .article-content .content-body li { margin-bottom: 8px; }
    .article-content .content-body img { border-radius: var(--radius-sm); margin: 24px 0; box-shadow: var(--shadow-sm); }
    .article-content .content-body blockquote {
        border-left: 4px solid var(--primary); padding: 16px 24px;
        background: rgba(230,62,62,0.05); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        margin: 24px 0; font-style: italic; color: var(--text-secondary);
    }
    .article-content .content-body a { color: var(--primary); font-weight: 600; border-bottom: 1px solid transparent; }
    .article-content .content-body a:hover { border-bottom-color: var(--primary); }

    .article-tags {
        display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; padding-top: 24px;
        border-top: 1px solid var(--border-color);
    }
    .article-tags .tag {
        display: inline-block; padding: 4px 16px; border-radius: 100px;
        background: rgba(230,62,62,0.08); color: var(--primary); font-size: 0.85rem; font-weight: 500;
        transition: var(--transition);
    }
    .article-tags .tag:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }

    .article-nav-links {
        display: flex; justify-content: space-between; gap: 16px;
        margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-color);
    }
    .article-nav-links a {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 10px 24px; border-radius: 100px;
        background: var(--bg-body); color: var(--text-primary);
        font-weight: 600; font-size: 0.9rem;
        border: 1px solid var(--border-color); transition: var(--transition);
    }
    .article-nav-links a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(230,62,62,0.25); }

    @media (max-width: 768px) {
        .article-content { padding: 24px 20px; }
        .article-content .content-body { font-size: 0.98rem; }
        .article-nav-links { flex-direction: column; align-items: stretch; }
        .article-nav-links a { justify-content: center; }
    }

    /* ===== Sidebar / 相关推荐 ===== */
    .sidebar-section { margin-top: 40px; }
    .sidebar-section .section-title {
        font-size: 1.4rem; font-weight: 800; margin-bottom: 24px;
        color: var(--text-primary); letter-spacing: -0.01em;
    }
    .sidebar-section .section-title span {
        display: inline-block; border-bottom: 4px solid var(--primary);
        padding-bottom: 4px;
    }
    .related-card {
        display: flex; gap: 16px; padding: 16px; border-radius: var(--radius-sm);
        background: var(--bg-card); border: 1px solid var(--border-color);
        transition: var(--transition); margin-bottom: 12px;
    }
    .related-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
    .related-card .related-img {
        width: 80px; height: 60px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0;
        background: var(--border-color);
    }
    .related-card .related-info { flex: 1; min-width: 0; }
    .related-card .related-title {
        font-weight: 700; font-size: 0.95rem; color: var(--text-primary);
        display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
        transition: var(--transition); line-height: 1.4;
    }
    .related-card:hover .related-title { color: var(--primary); }
    .related-card .related-meta {
        font-size: 0.8rem; color: var(--text-muted); margin-top: 4px;
    }
    @media (max-width: 768px) {
        .related-card .related-img { width: 64px; height: 48px; }
    }

    /* ===== Not Found ===== */
    .not-found-block {
        text-align: center; padding: 80px 20px;
        background: var(--bg-card); border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm); border: 1px solid var(--border-color);
    }
    .not-found-block .nf-icon {
        font-size: 4rem; color: var(--text-muted); margin-bottom: 20px;
    }
    .not-found-block h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
    .not-found-block p { color: var(--text-secondary); margin-bottom: 24px; font-size: 1.05rem; }
    .not-found-block .btn-home {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 12px 32px; border-radius: 100px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff; font-weight: 700; border: none;
        transition: var(--transition);
    }
    .not-found-block .btn-home:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,62,62,0.35); color: #fff; }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--secondary); color: rgba(255,255,255,0.8);
        padding: 48px 0 0; position: relative; overflow: hidden;
    }
    .site-footer::before {
        content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
        background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    }
    .footer-brand { display: flex; align-items: center; gap: 12px; font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
    .footer-brand .brand-icon {
        display: inline-flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff; font-weight: 900; font-size: 1.4rem;
    }
    .footer-desc { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
    .footer-heading { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 16px; position: relative; padding-bottom: 8px; }
    .footer-heading::after { content: ''; position: absolute; bottom: 0; left: 0; width: 36px; height: 3px; background: var(--primary); border-radius: 4px; }
    .footer-links { list-style: none; padding: 0; margin: 0; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a {
        color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition);
        display: inline-flex; align-items: center; gap: 6px;
    }
    .footer-links a i { font-size: 0.7rem; }
    .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
    .footer-bottom {
        margin-top: 32px; padding: 20px 0; border-top: 1px solid var(--border-light);
        display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px;
        font-size: 0.85rem; color: rgba(255,255,255,0.5);
    }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
        display: inline-flex; align-items: center; justify-content: center;
        width: 40px; height: 40px; border-radius: 50%;
        background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.7);
        font-size: 1.1rem; transition: var(--transition);
    }
    .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 16px rgba(230,62,62,0.3); }
    @media (max-width: 768px) {
        .footer-bottom { flex-direction: column; text-align: center; }
        .footer-desc { max-width: 100%; }
    }

    /* ===== Scrollbar ===== */
    ::-webkit-scrollbar { width: 8px; }
    ::-webkit-scrollbar-track { background: var(--bg-body); }
    ::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 8px; }
    ::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

    /* ============================================ */
    /* 通用工具类 */
    .section-title-custom {
        font-size: 1.8rem; font-weight: 800; letter-spacing: -0.02em;
        margin-bottom: 32px; color: var(--text-primary);
    }
    .section-title-custom span {
        display: inline-block; border-bottom: 4px solid var(--primary);
        padding-bottom: 6px;
    }
    .text-gradient {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .btn-primary-custom {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 10px 28px; border-radius: 100px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff; font-weight: 700; border: none;
        transition: var(--transition); cursor: pointer;
    }
    .btn-primary-custom:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,62,62,0.35); color: #fff; }
    .btn-outline-custom {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 10px 28px; border-radius: 100px;
        background: transparent; color: var(--primary); font-weight: 700;
        border: 2px solid var(--primary); transition: var(--transition); cursor: pointer;
    }
    .btn-outline-custom:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 16px rgba(230,62,62,0.2); }

/* roulang page: category1 */
/* === Design Variables === */
        :root {
            --primary: #6c3fc5;
            --primary-dark: #542ca3;
            --primary-light: #8f6bdb;
            --primary-gradient: linear-gradient(135deg, #6c3fc5 0%, #a855f7 100%);
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #ec4899;
            --bg-dark: #0f0b1a;
            --bg-section: #f8f6fe;
            --bg-card: #ffffff;
            --bg-footer: #0f0b1a;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9e;
            --text-light: #f1f1fa;
            --border-light: #e8e4f2;
            --border-card: #ede9f6;
            --shadow-sm: 0 2px 8px rgba(108, 63, 197, 0.08);
            --shadow-md: 0 8px 28px rgba(108, 63, 197, 0.12);
            --shadow-lg: 0 20px 60px rgba(108, 63, 197, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* === Reset & Base === */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-section);
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }

        /* === Container === */
        .container {
            max-width: 1260px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* === Header & Nav === */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }
        .site-header .navbar {
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            font-weight: 800;
            font-size: 1.5rem;
            color: #fff;
        }
        .navbar-brand:hover {
            color: var(--primary-light);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary-gradient);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(108, 63, 197, 0.4);
        }
        .brand-text {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: #fff;
            background: var(--primary-gradient);
            box-shadow: 0 4px 16px rgba(108, 63, 197, 0.35);
        }
        .navbar-toggler {
            border: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 4px 10px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(108, 63, 197, 0.5);
            outline: none;
        }
        @media (max-width: 767px) {
            .navbar-nav .nav-link {
                padding: 12px 16px !important;
                border-radius: var(--radius-sm);
                margin: 2px 0;
            }
            .navbar-collapse {
                background: var(--bg-dark);
                padding: 16px 0 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
                margin-top: 12px;
            }
        }

        /* === Breadcrumb === */
        .breadcrumb-area {
            background: var(--bg-dark);
            padding: 22px 0 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .breadcrumb-area .breadcrumb {
            margin: 0;
            background: transparent;
            padding: 0;
        }
        .breadcrumb-area .breadcrumb-item {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }
        .breadcrumb-area .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.6);
        }
        .breadcrumb-area .breadcrumb-item a:hover {
            color: var(--secondary);
        }
        .breadcrumb-area .breadcrumb-item.active {
            color: #fff;
        }
        .breadcrumb-area .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.3);
        }

        /* === Hero Section === */
        .category-hero {
            background: var(--bg-dark);
            padding: 50px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 63, 197, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(108, 63, 197, 0.2);
            border: 1px solid rgba(108, 63, 197, 0.3);
            color: var(--primary-light);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .category-hero .hero-badge i {
            font-size: 0.75rem;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 .highlight {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 620px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }
        .category-hero .hero-stats .stat-item {
            text-align: center;
        }
        .category-hero .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        @media (max-width: 767px) {
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .category-hero .hero-desc {
                font-size: 0.95rem;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .hero-stats .stat-number {
                font-size: 1.5rem;
            }
        }

        /* === Section Common === */
        .section-block {
            padding: 70px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 580px;
            margin-bottom: 40px;
        }
        .section-title .highlight {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 767px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
        }

        /* === Cards === */
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .guide-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: #e8e4f2;
        }
        .guide-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .guide-card .card-img-wrap .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary-gradient);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 12px rgba(108, 63, 197, 0.35);
        }
        .guide-card .card-img-wrap .card-duration {
            position: absolute;
            bottom: 14px;
            right: 14px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .guide-card .card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .guide-card .card-tags .tag {
            display: inline-block;
            background: var(--bg-section);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid var(--border-light);
        }
        .guide-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-title a {
            color: inherit;
        }
        .guide-card .card-title a:hover {
            color: var(--primary);
        }
        .guide-card .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .guide-card .card-meta .meta-author {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-meta .meta-author img {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            object-fit: cover;
        }
        .guide-card .card-meta .meta-views i {
            margin-right: 4px;
        }

        /* === Featured Article === */
        .featured-guide {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }
        .featured-guide .featured-img {
            flex: 0 0 50%;
            min-height: 320px;
            background: #2a2040;
            position: relative;
            overflow: hidden;
        }
        .featured-guide .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-guide:hover .featured-img img {
            transform: scale(1.03);
        }
        .featured-guide .featured-content {
            flex: 0 0 50%;
            padding: 44px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-guide .featured-content .feat-badge {
            display: inline-block;
            background: var(--secondary);
            color: #1a1a2e;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        .featured-guide .featured-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .featured-guide .featured-content p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            margin-bottom: 22px;
            line-height: 1.7;
        }
        .featured-guide .featured-content .btn-guide {
            align-self: flex-start;
        }
        @media (max-width: 991px) {
            .featured-guide .featured-img,
            .featured-guide .featured-content {
                flex: 0 0 100%;
            }
            .featured-guide .featured-content {
                padding: 32px 28px;
            }
            .featured-guide .featured-content h3 {
                font-size: 1.3rem;
            }
        }

        /* === Buttons === */
        .btn-guide {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 63, 197, 0.3);
        }
        .btn-guide:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(108, 63, 197, 0.4);
            color: #fff;
        }
        .btn-guide-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            box-shadow: none;
        }
        .btn-guide-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(108, 63, 197, 0.3);
        }
        .btn-guide-sm {
            padding: 8px 20px;
            font-size: 0.82rem;
        }
        .btn-guide-light {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: none;
        }
        .btn-guide-light:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            box-shadow: none;
        }

        /* === Category Filters === */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }
        .filter-bar .filter-btn {
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: rgba(108, 63, 197, 0.05);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(108, 63, 197, 0.3);
        }

        /* === Pagination === */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
        }
        .pagination-wrap .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            background: var(--bg-card);
            color: var(--text-body);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .pagination-wrap .page-link:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: rgba(108, 63, 197, 0.05);
        }
        .pagination-wrap .page-link.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(108, 63, 197, 0.3);
        }
        .pagination-wrap .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* === FAQ === */
        .faq-section {
            background: var(--bg-dark);
        }
        .faq-section .section-title {
            color: #fff;
        }
        .faq-section .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }
        .faq-accordion .accordion-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(108, 63, 197, 0.12);
            color: var(--primary-light);
        }
        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23a855f7' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
            transition: var(--transition);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(108, 63, 197, 0.3);
        }
        .faq-accordion .accordion-body {
            padding: 0 24px 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* === CTA === */
        .cta-block {
            background: var(--primary-gradient);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: #fff;
            color: var(--primary-dark);
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }
        .cta-block .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            color: var(--primary-dark);
        }
        @media (max-width: 767px) {
            .cta-block h2 {
                font-size: 1.6rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
        }

        /* === Footer === */
        .site-footer {
            background: var(--bg-footer);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            font-size: 1.1rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 360px;
            line-height: 1.8;
        }
        .site-footer .footer-heading {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .site-footer .footer-links a i {
            font-size: 0.65rem;
            color: var(--primary-light);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .site-footer .footer-bottom p {
            margin: 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 14px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary-gradient);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 767px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* === Responsive Fine-tune === */
        @media (max-width: 575px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .guide-card .card-body {
                padding: 16px 14px 14px;
            }
            .guide-card .card-title {
                font-size: 1rem;
            }
            .filter-bar .filter-btn {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .featured-guide .featured-content {
                padding: 24px 20px;
            }
            .featured-guide .featured-content h3 {
                font-size: 1.1rem;
            }
        }

        /* === Smooth animation === */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease-out forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --secondary: #f39c12;
            --accent: #2ecc71;
            --bg-body: #f9f7f5;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-darker: #0f0f1a;
            --bg-card: #ffffff;
            --text-primary: #1e1e2a;
            --text-secondary: #5a5a6e;
            --text-muted: #8e8ea0;
            --text-light: #f0f0f5;
            --border-color: #e8e4e0;
            --border-light: #f0ece8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 18px 48px rgba(231, 76, 60, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 70px;
        }

        /* ===== 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-sans);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }
        ul {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 1050;
            height: var(--header-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-light);
        }
        .site-header .container {
            width: 100%;
        }
        .navbar {
            padding: 0;
            width: 100%;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--text-primary) !important;
            padding: 0;
            margin: 0;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
        }
        .navbar-brand .brand-text {
            letter-spacing: 0.5px;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--text-secondary) !important;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary) !important;
            background: var(--primary-light);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(231, 76, 60, 0.3);
        }
        .navbar-nav .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff !important;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler:hover {
            background: var(--border-light);
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2d1b1b 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .page-hero h1 i {
            color: var(--secondary);
            margin-right: 10px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            color: var(--secondary);
            padding: 6px 22px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 580px;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Card 通用 ===== */
        .card-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .card-item .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            display: block;
        }
        .card-item .card-body {
            padding: 22px 24px 26px;
        }
        .card-item .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-item .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-item .card-meta i {
            margin-right: 4px;
        }
        .card-item .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }

        /* ===== Badge / 徽章 ===== */
        .badge-hot {
            background: var(--primary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            display: inline-block;
        }
        .badge-new {
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            display: inline-block;
        }
        .badge-top {
            background: var(--secondary);
            color: #fff;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            display: inline-block;
        }

        /* ===== 排行榜 / 列表 ===== */
        .rank-list {
            counter-reset: rank;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 16px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            margin-bottom: 12px;
        }
        .rank-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .rank-item .rank-num {
            counter-increment: rank;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--border-light);
            border-radius: 50%;
            font-weight: 800;
            font-size: 1rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--secondary);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-num {
            background: #bdc3c7;
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-num {
            background: #e67e22;
            color: #fff;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }
        .rank-item .rank-score {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
        }

        /* ===== 特色图文板块 ===== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 40px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-block .feature-img {
            flex: 0 0 42%;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            box-shadow: var(--shadow-md);
        }
        .feature-block .feature-content {
            flex: 1;
        }
        .feature-block .feature-content h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .feature-block .feature-content p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .feature-block .feature-content .feature-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        /* ===== 筛选标签 ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
            justify-content: center;
        }
        .filter-tabs .filter-btn {
            padding: 8px 24px;
            border-radius: 50px;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-tabs .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-tabs .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(231, 76, 60, 0.25);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 20px 26px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .faq-item .faq-a {
            margin-top: 12px;
            padding-left: 30px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 40px;
            border-radius: var(--radius-xl);
            text-align: center;
            color: #fff;
            box-shadow: 0 20px 50px rgba(231, 76, 60, 0.25);
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-block p {
            font-size: 1.1rem;
            opacity: 0.92;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .cta-btn {
            display: inline-block;
            background: #fff;
            color: var(--primary-dark);
            padding: 14px 44px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }
        .cta-block .cta-btn:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            margin-top: 20px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 900;
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a i {
            font-size: 0.65rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 1.3rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--secondary);
            transform: scale(1.15);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .feature-block {
                flex-direction: column !important;
                padding: 28px 24px;
            }
            .feature-block .feature-img {
                flex: 0 0 100%;
                width: 100%;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }
            .section {
                padding: 48px 0;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
                text-align: center;
            }
            .rank-item {
                padding: 12px 16px;
                gap: 12px;
            }
            .filter-tabs .filter-btn {
                padding: 6px 18px;
                font-size: 0.82rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .feature-block .feature-content h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero p {
                font-size: 0.92rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .card-item .card-body {
                padding: 16px 18px 20px;
            }
            .card-item .card-body h3 {
                font-size: 1rem;
            }
            .cta-block h2 {
                font-size: 1.2rem;
            }
            .cta-block .cta-btn {
                padding: 12px 30px;
                font-size: 0.92rem;
            }
            .rank-item .rank-num {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .rank-item .rank-info h4 {
                font-size: 0.92rem;
            }
        }

        /* ===== 实用辅助 ===== */
        .gap-1 { gap: 0.5rem; }
        .gap-2 { gap: 1rem; }
        .gap-3 { gap: 1.5rem; }
        .gap-4 { gap: 2rem; }
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .fw-700 { font-weight: 700; }
        .fw-800 { font-weight: 800; }
        .text-primary-custom { color: var(--primary); }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C3FD8;
            --primary-dark: #5530B0;
            --primary-light: #8B6FE8;
            --primary-bg: #F5F0FF;
            --secondary: #FF6B6B;
            --secondary-light: #FF8E8E;
            --accent: #FFD93D;
            --accent-dark: #F0C000;
            --dark: #1A1A2E;
            --dark-card: #16213E;
            --gray-100: #F8F9FA;
            --gray-200: #E9ECEF;
            --gray-300: #DEE2E6;
            --gray-400: #CED4DA;
            --gray-500: #ADB5BD;
            --gray-600: #6C757D;
            --gray-700: #495057;
            --gray-800: #343A40;
            --text-primary: #1A1A2E;
            --text-secondary: #6C757D;
            --text-light: #FFFFFF;
            --border-color: #E8E0F0;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(108, 63, 216, 0.08);
            --shadow-md: 0 8px 30px rgba(108, 63, 216, 0.12);
            --shadow-lg: 0 16px 48px rgba(108, 63, 216, 0.18);
            --shadow-hover: 0 12px 40px rgba(108, 63, 216, 0.22);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --spacing-section: 80px;
            --container-max: 1200px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #FFFFFF;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.6rem; }
        h4 { font-size: 1.25rem; }
        h5 { font-size: 1.1rem; }
        h6 { font-size: 1rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            h3 { font-size: 1.3rem; }
        }

        .section-title {
            position: relative;
            margin-bottom: 12px;
            font-weight: 800;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-title {
            display: inline-block;
        }
        .section-header .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 12px auto 0;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(108, 63, 216, 0.10);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 30px rgba(108, 63, 216, 0.10);
        }

        .navbar {
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            padding: 4px 0;
            transition: var(--transition);
        }
        .navbar-brand:hover {
            color: var(--primary);
            transform: scale(1.02);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-radius: 12px;
            font-size: 1.2rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(108, 63, 216, 0.25);
        }
        .brand-text {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-nav {
            gap: 4px;
        }
        .nav-item .nav-link {
            padding: 8px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-item .nav-link:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-item .nav-link.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 700;
        }
        .nav-item .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .navbar-toggler {
            border: none;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            background: var(--primary);
            color: #fff;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(108, 63, 216, 0.25);
        }

        @media (max-width: 768px) {
            .navbar-collapse {
                background: #fff;
                border-radius: var(--border-radius);
                padding: 16px;
                box-shadow: var(--shadow-lg);
                margin-top: 12px;
                border: 1px solid var(--border-color);
            }
            .nav-item .nav-link {
                padding: 12px 16px;
                border-radius: 8px;
            }
            .nav-item .nav-link.active::after {
                display: none;
            }
        }

        /* ===== Hero / Page Banner ===== */
        .page-hero {
            background: linear-gradient(135deg, #1A1A2E 0%, #2D1B4E 40%, #16213E 100%);
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 63, 216, 0.20) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 107, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            color: #fff;
            font-size: 3.2rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .page-hero p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.2rem;
            max-width: 620px;
            line-height: 1.8;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            padding: 6px 18px;
            border-radius: 50px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        .page-hero .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .page-hero .hero-stats .stat-item {
            color: #fff;
        }
        .page-hero .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
        }
        .page-hero .hero-stats .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 70px 0 56px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
            .page-hero .hero-stats {
                gap: 20px;
            }
            .page-hero .hero-stats .stat-number {
                font-size: 1.4rem;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-bg {
            background: var(--gray-100);
        }
        .section-bg-primary {
            background: var(--primary-bg);
        }
        .section-dark {
            background: var(--dark);
            color: #fff;
        }
        .section-dark .section-title,
        .section-dark h2, .section-dark h3, .section-dark h4 {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Cards ===== */
        .card-custom {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
        }
        .card-custom .card-icon.icon-secondary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .card-custom .card-icon.icon-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #1A1A2E;
        }
        .card-custom h3, .card-custom h4 {
            margin-bottom: 10px;
            font-weight: 700;
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .card-custom .card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ===== Community Cards (special) ===== */
        .community-card {
            background: #fff;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .community-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .community-card .card-header-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .community-card .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .community-card .avatar.avatar2 {
            background: linear-gradient(135deg, #36D1DC, #5B86E5);
        }
        .community-card .avatar.avatar3 {
            background: linear-gradient(135deg, #F2994A, #F2C94C);
        }
        .community-card .avatar.avatar4 {
            background: linear-gradient(135deg, #EE9CA7, #FFDDE1);
            color: #7A3B4A;
        }
        .community-card .avatar.avatar5 {
            background: linear-gradient(135deg, #A8E063, #56AB2F);
        }
        .community-card .avatar.avatar6 {
            background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
        }
        .community-card .username {
            font-weight: 700;
            font-size: 1rem;
        }
        .community-card .user-tag {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .community-card .post-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .community-card .post-excerpt {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 14px;
        }
        .community-card .post-meta {
            display: flex;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--gray-500);
            border-top: 1px solid var(--gray-200);
            padding-top: 14px;
        }
        .community-card .post-meta i {
            margin-right: 4px;
        }
        .community-card .post-meta span {
            display: flex;
            align-items: center;
        }
        .community-card .post-badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            margin-bottom: 8px;
        }
        .community-card .post-badge.hot {
            background: #FFF0F0;
            color: var(--secondary);
        }
        .community-card .post-badge.new {
            background: #E8F5E9;
            color: #2E7D32;
        }

        /* ===== Buttons ===== */
        .btn {
            padding: 12px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 63, 216, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 63, 216, 0.40);
            color: #fff;
        }
        .btn-secondary {
            background: linear-gradient(135deg, var(--secondary), #FF8E8E);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 107, 107, 0.30);
        }
        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 107, 0.40);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.20);
            backdrop-filter: blur(10px);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.25);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: 14px;
        }

        /* ===== Badges & Tags ===== */
        .badge-custom {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-custom.badge-hot {
            background: #FFF0F0;
            color: var(--secondary);
        }
        .badge-custom.badge-new {
            background: #E8F5E9;
            color: #2E7D32;
        }
        .badge-custom.badge-vip {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #1A1A2E;
        }

        /* ===== Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 992px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Post Grid ===== */
        .post-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .post-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Stats / Numbers ===== */
        .stats-row {
            display: flex;
            gap: 40px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .stats-row .stat-item {
            text-align: center;
            padding: 20px 32px;
        }
        .stats-row .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stats-row .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-row .stat-number {
                font-size: 2rem;
            }
            .stats-row .stat-item {
                padding: 12px 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
            background: #fff;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #fff;
            transition: var(--transition);
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
        }
        .faq-question:hover {
            background: var(--primary-bg);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--primary);
            font-size: 0.9rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #5530B0 60%, var(--dark-card) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            margin: 0 8px;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section .btn {
                margin: 6px 4px;
                padding: 12px 24px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 1rem;
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            line-height: 1.8;
            max-width: 360px;
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-heading {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .site-footer .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 4px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a i {
            font-size: 0.65rem;
            color: var(--primary-light);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Responsive Extra ===== */
        @media (max-width: 520px) {
            :root {
                --spacing-section: 48px;
            }
            .container {
                padding: 0 12px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .stats-row .stat-number {
                font-size: 1.6rem;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .community-card {
                padding: 18px 16px;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 8px; }
        .mt-2 { margin-top: 16px; }
        .mt-3 { margin-top: 24px; }
        .mt-4 { margin-top: 32px; }
        .mt-5 { margin-top: 48px; }
        .mb-1 { margin-bottom: 8px; }
        .mb-2 { margin-bottom: 16px; }
        .mb-3 { margin-bottom: 24px; }
        .mb-4 { margin-bottom: 32px; }
        .mb-5 { margin-bottom: 48px; }
        .gap-1 { gap: 8px; }
        .gap-2 { gap: 16px; }
        .gap-3 { gap: 24px; }

        /* Accessibility */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                transition: none !important;
                animation: none !important;
            }
        }

        /* Focus visible for all interactive */
        :focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Selection */
        ::selection {
            background: var(--primary);
            color: #fff;
        }