/* roulang page: index */
:root {
            --color-bg: #08081a;
            --color-bg-alt: #0e0e28;
            --color-surface: rgba(18, 18, 48, 0.85);
            --color-surface-solid: #121230;
            --color-primary: #b347ea;
            --color-primary-light: #d07df8;
            --color-accent: #00e5cc;
            --color-accent-light: #33f0db;
            --color-hot: #ff2d78;
            --color-hot-light: #ff6b9d;
            --color-text: #f0f0f8;
            --color-text-strong: #ffffff;
            --color-muted: #9a9ab8;
            --color-muted-light: #b8b8d0;
            --color-border: rgba(179, 71, 234, 0.22);
            --color-border-accent: rgba(0, 229, 204, 0.3);
            --color-border-subtle: rgba(255, 255, 255, 0.08);
            --glow-purple-sm: 0 0 10px rgba(179, 71, 234, 0.35), 0 0 30px rgba(179, 71, 234, 0.08);
            --glow-purple-md: 0 0 20px rgba(179, 71, 234, 0.45), 0 0 60px rgba(179, 71, 234, 0.12);
            --glow-purple-lg: 0 0 35px rgba(179, 71, 234, 0.55), 0 0 90px rgba(179, 71, 234, 0.16);
            --glow-cyan-sm: 0 0 10px rgba(0, 229, 204, 0.35), 0 0 30px rgba(0, 229, 204, 0.08);
            --glow-cyan-md: 0 0 20px rgba(0, 229, 204, 0.45), 0 0 60px rgba(0, 229, 204, 0.12);
            --glow-hot-sm: 0 0 10px rgba(255, 45, 120, 0.4), 0 0 28px rgba(255, 45, 120, 0.1);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(179, 71, 234, 0.08);
            --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(179, 71, 234, 0.1);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --container-max: 1200px;
            --container-narrow: 900px;
            --header-height: 68px;
            --bottom-tab-height: 60px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            padding-bottom: 0;
            background-image:
                radial-gradient(ellipse at 20% 10%, rgba(179, 71, 234, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 70%, rgba(0, 229, 204, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 40%, rgba(255, 45, 120, 0.03) 0%, transparent 50%);
            background-attachment: fixed;
        }

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

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

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

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--color-text-strong);
            line-height: 1.25;
            font-weight: 700;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 10, 26, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            background: rgba(8, 8, 24, 0.94);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(179, 71, 234, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--color-text-strong);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--color-primary-light);
            text-shadow: var(--glow-purple-sm);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-hot));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: var(--glow-purple-sm);
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-muted);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--color-text-strong);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-link.active {
            color: var(--color-text-strong);
            background: rgba(179, 71, 234, 0.14);
            box-shadow: inset 0 0 0 1px rgba(179, 71, 234, 0.3);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--color-accent);
            box-shadow: var(--glow-cyan-sm);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-hot));
            color: #fff;
            box-shadow: var(--glow-purple-sm);
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .btn-header:hover {
            box-shadow: var(--glow-purple-md);
            transform: translateY(-1px);
        }
        .btn-header:active {
            transform: scale(0.97);
        }

        /* Mobile bottom tab nav */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            background: rgba(14, 14, 32, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid var(--color-border-subtle);
            height: var(--bottom-tab-height);
            padding: 0 8px;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
        }
        .bottom-tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            padding: 6px 16px;
            border-radius: var(--radius-md);
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--color-muted);
            transition: all var(--transition-fast);
            min-width: 56px;
            position: relative;
        }
        .bottom-tab-item i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }
        .bottom-tab-item.active {
            color: var(--color-accent);
        }
        .bottom-tab-item.active i {
            text-shadow: var(--glow-cyan-sm);
        }
        .bottom-tab-item.active::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 20%;
            right: 20%;
            height: 2.5px;
            border-radius: 3px;
            background: var(--color-accent);
            box-shadow: var(--glow-cyan-sm);
        }
        .bottom-tab-item:hover {
            color: var(--color-text-strong);
        }

        /* ========== MAIN ========== */
        main {
            min-height: 60vh;
        }
        .section {
            padding: 72px 0;
            position: relative;
        }
        .section--alt {
            background: var(--color-bg-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            background: rgba(0, 229, 204, 0.08);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 14px;
            border: 1px solid rgba(0, 229, 204, 0.2);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ========== HERO ========== */
        .hero {
            padding: 80px 0 90px;
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(170deg, rgba(10, 10, 30, 0.5) 0%, rgba(8, 8, 26, 0.9) 100%);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
            z-index: 0;
            filter: saturate(1.3) brightness(0.7);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 55% 40%, rgba(179, 71, 234, 0.15) 0%, transparent 55%),
                radial-gradient(ellipse at 30% 65%, rgba(0, 229, 204, 0.08) 0%, transparent 50%),
                linear-gradient(180deg, rgba(8, 8, 26, 0.3) 0%, rgba(8, 8, 26, 0.85) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 45, 120, 0.12);
            border: 1px solid rgba(255, 45, 120, 0.3);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-hot-light);
            margin-bottom: 20px;
            animation: pulse-badge 2.4s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 45, 120, 0.3);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(255, 45, 120, 0);
            }
        }
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-hot);
            box-shadow: var(--glow-hot-sm);
            animation: blink-dot 1.2s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            line-height: 1.15;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: none;
            position: relative;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--color-muted-light);
            margin-bottom: 32px;
            max-width: 500px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), #8b2fc9);
            color: #fff;
            box-shadow: var(--glow-purple-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .btn-primary:hover {
            box-shadow: var(--glow-purple-lg);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.96);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text-strong);
            border: 1.5px solid var(--color-border);
            box-shadow: 0 0 0 0 transparent;
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            box-shadow: var(--glow-cyan-sm);
            background: rgba(0, 229, 204, 0.05);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--color-accent), #00bfa6);
            color: #000;
            box-shadow: var(--glow-cyan-sm);
            font-weight: 800;
        }
        .btn-accent:hover {
            box-shadow: var(--glow-cyan-md);
            transform: translateY(-2px);
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .feature-card:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 18px;
            transition: all var(--transition-normal);
        }
        .feature-icon.purple {
            background: rgba(179, 71, 234, 0.15);
            color: var(--color-primary-light);
            box-shadow: 0 0 16px rgba(179, 71, 234, 0.2);
        }
        .feature-icon.cyan {
            background: rgba(0, 229, 204, 0.12);
            color: var(--color-accent);
            box-shadow: 0 0 16px rgba(0, 229, 204, 0.2);
        }
        .feature-icon.hot {
            background: rgba(255, 45, 120, 0.12);
            color: var(--color-hot-light);
            box-shadow: 0 0 16px rgba(255, 45, 120, 0.2);
        }
        .feature-icon.gold {
            background: rgba(255, 180, 40, 0.12);
            color: #ffb428;
            box-shadow: 0 0 16px rgba(255, 180, 40, 0.2);
        }
        .feature-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.55;
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            max-width: 700px;
            margin: 0 auto;
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .category-card:hover {
            border-color: var(--color-border-accent);
            box-shadow: var(--glow-cyan-sm), var(--shadow-elevated);
            transform: translateY(-3px);
        }
        .category-card-img {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            border: 2px solid var(--color-border-subtle);
            transition: border-color var(--transition-fast);
        }
        .category-card:hover .category-card-img {
            border-color: var(--color-accent);
        }
        .category-card-info h3 {
            font-size: 1.3rem;
            margin-bottom: 6px;
        }
        .category-card-info p {
            font-size: 0.95rem;
            color: var(--color-muted);
            margin-bottom: 10px;
        }
        .category-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
        }
        .category-card:hover .category-card-arrow {
            gap: 10px;
        }

        /* ========== CMS LIST ========== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .cms-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px 26px;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 10px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .cms-card:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-3px);
        }
        .cms-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(179, 71, 234, 0.12);
            color: var(--color-primary-light);
            width: fit-content;
            letter-spacing: 0.04em;
        }
        .cms-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
        }
        .cms-card h4 a {
            transition: color var(--transition-fast);
        }
        .cms-card h4 a:hover {
            color: var(--color-accent);
        }
        .cms-card-excerpt {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.5;
            flex-grow: 1;
        }
        .cms-card-meta {
            font-size: 0.8rem;
            color: var(--color-muted);
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .cms-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--color-muted);
            font-size: 1rem;
            grid-column: 1 / -1;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--color-border-subtle);
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            transition: all var(--transition-normal);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .stat-card:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            font-weight: 600;
        }

        /* ========== RECOMMEND GRID ========== */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .recommend-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-normal);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .recommend-card:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-5px);
        }
        .recommend-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-bottom: 1px solid var(--color-border-subtle);
            transition: filter var(--transition-normal);
        }
        .recommend-card:hover .recommend-card-img {
            filter: brightness(1.15);
        }
        .recommend-card-body {
            padding: 18px 20px;
        }
        .recommend-card-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .recommend-card-body p {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-strong);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-fast);
            color: var(--color-muted);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 229, 204, 0.12);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--color-muted);
            line-height: 1.65;
        }

        /* ========== CTA ========== */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(179, 71, 234, 0.1) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: var(--color-muted);
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border-subtle);
            padding: 48px 0 28px;
            margin-bottom: 0;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 32px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand {
            max-width: 280px;
        }
        .footer-logo {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--color-text-strong);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
        }
        .footer-links-group {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text-strong);
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--color-muted);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            text-align: center;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-subtle);
            font-size: 0.8rem;
            color: var(--color-muted);
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cms-list {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 2.5rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                display: none;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .site-footer {
                margin-bottom: var(--bottom-tab-height);
            }
            .hero {
                padding: 48px 0 56px;
                min-height: auto;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .feature-card {
                padding: 22px 16px;
            }
            .feature-card h3 {
                font-size: 0.95rem;
            }
            .feature-card p {
                font-size: 0.8rem;
            }
            .recommend-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cms-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .category-card {
                flex-direction: column;
                text-align: center;
                padding: 22px 18px;
            }
            .category-card-img {
                width: 80px;
                height: 80px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-inner {
                flex-direction: column;
                gap: 24px;
            }
            .footer-links-group {
                gap: 24px;
            }
            .cta-title {
                font-size: 1.55rem;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .footer-inner {
                padding: 0 16px;
            }
            .footer-bottom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero {
                padding: 36px 0 44px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .feature-card {
                padding: 18px 14px;
            }
            .cms-card {
                padding: 18px 16px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            .bottom-tab-item {
                padding: 4px 10px;
                font-size: 0.65rem;
            }
            .bottom-tab-item i {
                font-size: 1.1rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #08081a;
            --bg-secondary: #0e0e24;
            --bg-card: #161630;
            --bg-card-hover: #1e1e3c;
            --bg-elevated: #1c1c38;
            --text-primary: #f0f0f8;
            --text-secondary: #b8b8d0;
            --text-muted: #7a7a9e;
            --accent-purple: #c44dff;
            --accent-purple-dark: #9b30d4;
            --accent-cyan: #00e0ff;
            --accent-cyan-dark: #00b8d4;
            --accent-pink: #ff4da6;
            --accent-amber: #ffb84d;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-glow: rgba(196, 77, 255, 0.2);
            --border-cyan: rgba(0, 224, 255, 0.25);
            --shadow-glow-purple: 0 0 40px rgba(196, 77, 255, 0.12);
            --shadow-glow-cyan: 0 0 30px rgba(0, 224, 255, 0.1);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.55), 0 0 30px rgba(196, 77, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1240px;
            --header-height: 68px;
            --bottom-tab-height: 56px;
        }

        *, *::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: var(--bg-primary);
            min-height: 100vh;
            overflow-x: hidden;
            padding-bottom: 0;
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: var(--bottom-tab-height);
            }
        }

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

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

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

        ::selection {
            background: rgba(196, 77, 255, 0.35);
            color: #fff;
        }

        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(196, 77, 255, 0.35);
            border-radius: 3px;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(14, 14, 36, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 28px;
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
                gap: 14px;
            }
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--accent-purple);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 0 18px rgba(196, 77, 255, 0.35);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-link.active {
            color: #fff;
            background: rgba(196, 77, 255, 0.15);
            box-shadow: 0 0 14px rgba(196, 77, 255, 0.2);
        }

        .header-actions {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .header-actions {
                display: none;
            }
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-purple-dark));
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 0 18px rgba(196, 77, 255, 0.25);
            white-space: nowrap;
        }
        .btn-header:hover {
            box-shadow: 0 0 30px rgba(196, 77, 255, 0.45);
            transform: translateY(-1px);
        }

        /* ========== BOTTOM TAB NAV (Mobile) ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(14, 14, 32, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-subtle);
            height: var(--bottom-tab-height);
            padding: 0 12px;
        }

        @media (max-width: 768px) {
            .bottom-tab-nav {
                display: flex;
                align-items: center;
                justify-content: space-around;
            }
        }

        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            color: var(--text-muted);
            font-size: 0.68rem;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 10px;
            transition: all var(--transition-fast);
            min-width: 56px;
        }
        .bottom-tab-item i {
            font-size: 1.2rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-item:hover {
            color: var(--text-secondary);
        }
        .bottom-tab-item.active {
            color: var(--accent-purple);
        }
        .bottom-tab-item.active i {
            text-shadow: 0 0 12px rgba(196, 77, 255, 0.5);
        }

        /* ========== ARTICLE HERO ========== */
        .article-hero {
            position: relative;
            padding: 48px 0 36px;
            background: linear-gradient(180deg, rgba(14, 14, 36, 0.6) 0%, var(--bg-primary) 100%);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(196, 77, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(0, 224, 255, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--accent-purple);
            font-weight: 500;
            max-width: 200px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-hero-content {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }

        @media (max-width: 768px) {
            .article-hero-content {
                flex-direction: column-reverse;
                gap: 20px;
            }
        }

        .article-hero-text {
            flex: 1;
            min-width: 0;
        }
        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(0, 224, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 224, 255, 0.2);
            margin-bottom: 14px;
            transition: all var(--transition-fast);
        }
        .article-category-tag:hover {
            background: rgba(0, 224, 255, 0.18);
            border-color: rgba(0, 224, 255, 0.4);
            box-shadow: 0 0 16px rgba(0, 224, 255, 0.15);
        }

        .article-hero-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            margin-bottom: 10px;
        }

        @media (max-width: 768px) {
            .article-hero-title {
                font-size: 1.45rem;
            }
        }

        .article-hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .article-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-hero-meta i {
            font-size: 0.75rem;
            color: var(--accent-purple);
        }

        .article-hero-image {
            flex-shrink: 0;
            width: 320px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card), 0 0 24px rgba(196, 77, 255, 0.1);
            border: 1px solid var(--border-glow);
            transition: all var(--transition-base);
        }
        .article-hero-image:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .article-hero-image img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        @media (max-width: 768px) {
            .article-hero-image {
                width: 100%;
                max-width: 400px;
            }
        }

        /* ========== ARTICLE BODY ========== */
        .article-body-section {
            padding: 28px 0 56px;
        }
        .article-body-layout {
            display: flex;
            gap: 40px;
        }

        @media (max-width: 1024px) {
            .article-body-layout {
                flex-direction: column;
                gap: 32px;
            }
        }

        .article-main {
            flex: 1;
            min-width: 0;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            line-height: 1.85;
            font-size: 1.02rem;
            color: var(--text-primary);
            word-break: break-word;
        }

        @media (max-width: 768px) {
            .article-content {
                padding: 24px 18px;
                font-size: 0.95rem;
            }
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 32px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-glow);
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin: 24px 0 12px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul, .article-content ol {
            margin: 12px 0 20px 20px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }
        .article-content blockquote {
            border-left: 3px solid var(--accent-purple);
            padding: 14px 20px;
            margin: 20px 0;
            background: rgba(196, 77, 255, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.9em;
        }

        /* ========== ARTICLE SIDEBAR ========== */
        .article-sidebar {
            width: 320px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        @media (max-width: 1024px) {
            .article-sidebar {
                width: 100%;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 20px;
            }
            .article-sidebar > * {
                flex: 1;
                min-width: 240px;
            }
        }

        @media (max-width: 520px) {
            .article-sidebar {
                flex-direction: column;
            }
            .article-sidebar > * {
                min-width: auto;
            }
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .sidebar-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
        }
        .sidebar-card h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .sidebar-card h5 i {
            color: var(--accent-purple);
            font-size: 0.85rem;
        }

        .sidebar-post-item {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .sidebar-post-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-post-item:hover .sidebar-post-title {
            color: var(--accent-cyan);
        }
        .sidebar-post-thumb {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            border: 1px solid var(--border-subtle);
        }
        .sidebar-post-info {
            min-width: 0;
        }
        .sidebar-post-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.35;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
            margin-bottom: 4px;
        }
        .sidebar-post-date {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* ========== NOT FOUND ========== */
        .not-found-block {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-icon {
            font-size: 4rem;
            color: var(--accent-purple);
            margin-bottom: 20px;
            opacity: 0.7;
        }
        .not-found-block h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .not-found-block p {
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-purple-dark));
            transition: all var(--transition-base);
            box-shadow: 0 0 20px rgba(196, 77, 255, 0.3);
        }
        .btn-back:hover {
            box-shadow: 0 0 35px rgba(196, 77, 255, 0.5);
            transform: translateY(-2px);
        }

        /* ========== RELATED SECTION ========== */
        .related-section {
            padding: 0 0 56px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-cyan);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.55rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 28px;
            letter-spacing: 0.01em;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.25rem;
                margin-bottom: 20px;
            }
        }

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

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

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .related-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }
        .related-card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 12px;
        }
        .related-card-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .related-card:hover .related-card-title {
            color: var(--accent-cyan);
        }
        .related-card-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(196, 77, 255, 0.12);
            color: var(--accent-purple);
        }

        .related-empty {
            text-align: center;
            padding: 32px;
            color: var(--text-muted);
            font-size: 0.9rem;
            grid-column: 1 / -1;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(196, 77, 255, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-card {
            background: var(--bg-elevated);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: center;
            border: 1px solid var(--border-glow);
            box-shadow: var(--shadow-glow-purple);
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .cta-card {
                padding: 32px 20px;
            }
        }

        .cta-card h3 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan-dark));
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 0 24px rgba(196, 77, 255, 0.3);
        }
        .btn-cta:hover {
            box-shadow: 0 0 40px rgba(196, 77, 255, 0.5);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 44px 0 20px;
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        .footer-inner {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px 28px;
            border-bottom: 1px solid var(--border-subtle);
        }

        @media (max-width: 768px) {
            .footer-inner {
                flex-direction: column;
                gap: 28px;
                padding: 0 16px 24px;
            }
        }

        .footer-brand {
            flex: 1;
            min-width: 220px;
        }
        .footer-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 9px;
            margin-bottom: 10px;
        }
        .footer-logo i {
            color: var(--accent-purple);
            font-size: 1.1rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 280px;
        }
        .footer-links-group {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 18px 24px 0;
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-bottom {
                padding: 16px 16px 0;
                font-size: 0.72rem;
            }
        }

        /* ========== UTILITY ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        @media (max-width: 768px) {
            .hide-mobile {
                display: none !important;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --bg-primary: #0a0a16;
            --bg-secondary: #0f0f22;
            --bg-card: rgba(16, 16, 36, 0.85);
            --bg-card-hover: rgba(22, 22, 48, 0.92);
            --bg-panel: rgba(12, 12, 28, 0.9);
            --text-primary: #e8ecf4;
            --text-secondary: #b0b8cc;
            --text-muted: #6b7280;
            --text-heading: #f1f5f9;
            --color-neon-purple: #c026d3;
            --color-neon-purple-light: #d946ef;
            --color-neon-cyan: #06b6d4;
            --color-neon-cyan-light: #22d3ee;
            --color-neon-green: #10b981;
            --color-neon-pink: #ec4899;
            --color-accent: #d946ef;
            --color-accent-secondary: #06b6d4;
            --border-color: rgba(192, 38, 211, 0.25);
            --border-color-light: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(192, 38, 211, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
            --shadow-glow-purple: 0 0 20px rgba(192, 38, 211, 0.35), 0 0 60px rgba(192, 38, 211, 0.12);
            --shadow-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.3), 0 0 50px rgba(6, 182, 212, 0.1);
            --shadow-glow-green: 0 0 16px rgba(16, 185, 129, 0.3);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --header-height: 68px;
            --tab-nav-height: 64px;
            --safe-bottom: env(safe-area-inset-bottom, 0px);
        }

        /* ============ 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: 1.65;
            color: var(--text-primary);
            background: var(--bg-primary);
            background-image: 
                radial-gradient(ellipse at 20% 20%, rgba(192, 38, 211, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 60%, rgba(6, 182, 212, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 90%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-heading);
            line-height: 1.3;
            font-weight: 700;
        }

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

        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* ============ Header ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(10, 10, 22, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 0 var(--border-color-light), 0 4px 20px rgba(0,0,0,0.3);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--color-neon-purple-light);
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.5);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-neon-purple), var(--color-neon-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: var(--shadow-glow-purple);
            flex-shrink: 0;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.04);
        }

        .nav-link.active {
            color: #fff;
            background: rgba(192, 38, 211, 0.2);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.2);
            font-weight: 600;
        }

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

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--color-neon-purple), var(--color-neon-cyan));
            box-shadow: 0 0 20px rgba(192, 38, 211, 0.3);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-header:hover {
            box-shadow: 0 0 32px rgba(192, 38, 211, 0.5), 0 0 60px rgba(6, 182, 212, 0.25);
            transform: translateY(-1px);
        }

        .btn-header:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.3);
        }

        /* ============ 移动端底部 Tab 导航 ============ */
        .mobile-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 950;
            background: rgba(10, 10, 22, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.5);
            padding-bottom: var(--safe-bottom);
            height: calc(var(--tab-nav-height) + var(--safe-bottom));
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
        }

        .tab-nav-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            padding: 8px 10px;
            color: var(--text-muted);
            font-size: 0.7rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            min-width: 0;
            text-align: center;
        }

        .tab-nav-item i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }

        .tab-nav-item span {
            line-height: 1;
            white-space: nowrap;
        }

        .tab-nav-item.active {
            color: var(--color-neon-purple-light);
        }

        .tab-nav-item.active i {
            text-shadow: 0 0 16px rgba(192, 38, 211, 0.6);
        }

        .tab-nav-item.active::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 25%;
            right: 25%;
            height: 3px;
            border-radius: 0 0 3px 3px;
            background: linear-gradient(90deg, var(--color-neon-purple), var(--color-neon-cyan));
            box-shadow: 0 0 10px rgba(192, 38, 211, 0.6);
        }

        .tab-nav-item:hover {
            color: var(--text-primary);
        }

        .tab-nav-item:active {
            transform: scale(0.94);
        }

        /* ============ 分类 Banner ============ */
        .category-hero {
            position: relative;
            padding: 64px 0 72px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, 
                rgba(10,10,22,0.78) 0%, 
                rgba(10,10,22,0.7) 40%, 
                rgba(10,10,22,0.88) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: 
                radial-gradient(ellipse at 30% 40%, rgba(192,38,211,0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(6,182,212,0.13) 0%, transparent 55%);
            z-index: 2;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 3;
        }

        .category-hero-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 16px;
        }

        .category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            justify-content: center;
        }

        .category-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .category-breadcrumb a:hover {
            color: var(--color-neon-cyan-light);
        }

        .category-breadcrumb .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        .category-breadcrumb .current {
            color: var(--color-neon-purple-light);
            font-weight: 600;
        }

        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #fff 20%, var(--color-neon-cyan-light) 60%, var(--color-neon-purple-light) 90%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            filter: drop-shadow(0 0 20px rgba(192,38,211,0.3));
        }

        .category-hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }

        .category-hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* ============ 子分类标签导航 ============ */
        .subcat-section {
            padding: 32px 0 8px;
            position: relative;
            z-index: 5;
            margin-top: -8px;
        }

        .subcat-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
            padding: 6px;
            background: var(--bg-panel);
            border-radius: var(--radius-full);
            border: 1px solid var(--border-color-light);
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(10px);
        }

        .subcat-tag {
            padding: 9px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
            border: 1px solid transparent;
        }

        .subcat-tag:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.04);
        }

        .subcat-tag.active {
            color: #fff;
            background: rgba(192, 38, 211, 0.25);
            border-color: rgba(192, 38, 211, 0.4);
            box-shadow: 0 0 14px rgba(192, 38, 211, 0.2);
            font-weight: 600;
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: 56px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-heading);
            position: relative;
            padding-left: 18px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--color-neon-purple), var(--color-neon-cyan));
            box-shadow: 0 0 12px rgba(192,38,211,0.5);
        }

        .section-header .view-all {
            font-size: 0.9rem;
            color: var(--color-neon-cyan-light);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .section-header .view-all:hover {
            color: #fff;
            text-shadow: 0 0 12px rgba(6,182,212,0.5);
        }

        /* ============ 精选攻略大卡片 ============ */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .featured-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            min-height: 380px;
        }

        .featured-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-purple), var(--shadow-lg);
            background: var(--bg-card-hover);
        }

        .featured-card:first-child {
            grid-column: 1 / -1;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            min-height: 320px;
        }

        .featured-card:first-child .featured-card-image {
            height: 100%;
            min-height: 320px;
        }

        .featured-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            flex-shrink: 0;
        }

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

        .featured-card:hover .featured-card-image img {
            transform: scale(1.06);
        }

        .featured-card-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(to top, rgba(10,10,22,0.9), transparent);
            pointer-events: none;
        }

        .featured-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 5;
        }

        .featured-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .featured-card-tag {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-neon-cyan-light);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .featured-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .featured-card:hover h3 {
            color: #fff;
        }

        .featured-card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .featured-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 4px;
            border-top: 1px solid var(--border-color-light);
        }

        .featured-card-meta i {
            margin-right: 4px;
        }

        .featured-card:first-child h3 {
            font-size: 1.35rem;
            -webkit-line-clamp: 3;
        }

        .featured-card:first-child .featured-card-excerpt {
            -webkit-line-clamp: 3;
        }

        /* ============ 徽章系统 ============ */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            white-space: nowrap;
            pointer-events: none;
        }

        .badge-hot {
            background: rgba(239, 68, 68, 0.2);
            color: #f87171;
            border: 1px solid rgba(239, 68, 68, 0.35);
            box-shadow: 0 0 8px rgba(239, 68, 68, 0.2);
        }

        .badge-featured {
            background: rgba(192, 38, 211, 0.2);
            color: #d946ef;
            border: 1px solid rgba(192, 38, 211, 0.4);
            box-shadow: 0 0 10px rgba(192, 38, 211, 0.25);
        }

        .badge-recommend {
            background: rgba(6, 182, 212, 0.2);
            color: #22d3ee;
            border: 1px solid rgba(6, 182, 212, 0.35);
        }

        .badge-new {
            background: rgba(16, 185, 129, 0.2);
            color: #34d399;
            border: 1px solid rgba(16, 185, 129, 0.35);
            box-shadow: 0 0 8px rgba(16, 185, 129, 0.2);
        }

        .badge-limited {
            background: rgba(236, 72, 153, 0.2);
            color: #f472b6;
            border: 1px solid rgba(236, 72, 153, 0.35);
            animation: badge-pulse 2s ease-in-out infinite;
        }

        @keyframes badge-pulse {
            0%, 100% { box-shadow: 0 0 6px rgba(236,72,153,0.2); }
            50% { box-shadow: 0 0 16px rgba(236,72,153,0.45); }
        }

        /* ============ 攻略列表 ============ */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-list-item {
            display: flex;
            gap: 20px;
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-color-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            align-items: center;
        }

        .article-list-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-purple), var(--shadow-md);
            background: var(--bg-card-hover);
            transform: translateX(3px);
        }

        .article-list-image {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }

        .article-list-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .article-list-item:hover .article-list-image img {
            transform: scale(1.08);
        }

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

        .article-list-content h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .article-list-item:hover .article-list-content h4 {
            color: #fff;
        }

        .article-list-excerpt {
            font-size: 0.84rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-list-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .article-list-meta .tag-dot {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--color-neon-cyan-light);
            font-weight: 600;
            font-size: 0.75rem;
        }

        .article-list-meta .tag-dot::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-neon-cyan);
            box-shadow: 0 0 6px var(--color-neon-cyan);
        }

        /* ============ 热门排行 ============ */
        .ranking-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border-color-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
        }

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

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.015);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .ranking-item:hover {
            background: rgba(192, 38, 211, 0.08);
        }

        .ranking-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
            color: #fff;
        }

        .ranking-item:nth-child(1) .ranking-number {
            background: linear-gradient(135deg, #f59e0b, #ef4444);
            box-shadow: 0 0 16px rgba(245,158,11,0.4);
        }

        .ranking-item:nth-child(2) .ranking-number {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            box-shadow: 0 0 12px rgba(148,163,184,0.3);
        }

        .ranking-item:nth-child(3) .ranking-number {
            background: linear-gradient(135deg, #b45309, #92400e);
            box-shadow: 0 0 10px rgba(180,83,9,0.3);
        }

        .ranking-item:nth-child(n+4) .ranking-number {
            background: rgba(255,255,255,0.08);
            color: var(--text-muted);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-info h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-heading);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .ranking-info .ranking-views {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ============ 难度星级 ============ */
        .difficulty-stars {
            display: inline-flex;
            gap: 2px;
            font-size: 0.7rem;
        }

        .difficulty-stars .star-filled {
            color: #f59e0b;
            text-shadow: 0 0 6px rgba(245,158,11,0.5);
        }

        .difficulty-stars .star-empty {
            color: #4b5563;
        }

        .difficulty-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-left: 4px;
        }

        /* ============ 流程 Bracket 板块 ============ */
        .bracket-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color-light);
            border-bottom: 1px solid var(--border-color-light);
        }

        .bracket-flow {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            flex-wrap: wrap;
            padding: 20px 0;
        }

        .bracket-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 10px;
            padding: 16px 20px;
            position: relative;
            min-width: 130px;
        }

        .bracket-step:not(:last-child)::after {
            content: '\f061';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-neon-purple);
            font-size: 1rem;
            text-shadow: 0 0 8px rgba(192,38,211,0.5);
        }

        .bracket-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            box-shadow: var(--shadow-glow-purple);
        }

        .bracket-step:nth-child(1) .bracket-icon {
            background: linear-gradient(135deg, #10b981, #34d399);
            box-shadow: var(--shadow-glow-green);
        }

        .bracket-step:nth-child(2) .bracket-icon {
            background: linear-gradient(135deg, #06b6d4, #22d3ee);
            box-shadow: var(--shadow-glow-cyan);
        }

        .bracket-step:nth-child(3) .bracket-icon {
            background: linear-gradient(135deg, #c026d3, #d946ef);
            box-shadow: var(--shadow-glow-purple);
        }

        .bracket-step:nth-child(4) .bracket-icon {
            background: linear-gradient(135deg, #f59e0b, #ef4444);
            box-shadow: 0 0 20px rgba(245,158,11,0.4);
        }

        .bracket-step h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-heading);
        }

        .bracket-step p {
            font-size: 0.75rem;
            color: var(--text-muted);
            max-width: 120px;
            line-height: 1.4;
        }

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

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

        .faq-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.12);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text-heading);
            gap: 14px;
        }

        .faq-question i {
            font-size: 0.8rem;
            color: var(--color-neon-purple-light);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ============ CTA 板块 ============ */
        .cta-section {
            background: linear-gradient(135deg, rgba(192,38,211,0.08) 0%, rgba(6,182,212,0.06) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .cta-content {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
            max-width: 620px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--color-neon-purple), var(--color-neon-cyan));
            box-shadow: var(--shadow-glow-purple);
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .btn-cta:hover {
            box-shadow: 0 0 36px rgba(192, 38, 211, 0.55), 0 0 70px rgba(6, 182, 212, 0.3);
            transform: translateY(-3px);
        }

        .btn-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-glow-purple);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }

        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-heading);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-logo i {
            color: var(--color-neon-purple-light);
            text-shadow: 0 0 10px rgba(192,38,211,0.5);
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 420px;
        }

        .footer-links-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 2px;
        }

        .footer-col a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            max-width: var(--container-max);
            margin: 32px auto 0;
            padding: 20px 24px 0;
            border-top: 1px solid var(--border-color-light);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .featured-card:first-child {
                grid-column: 1 / -1;
                grid-template-columns: 1fr 1fr;
                min-height: 280px;
            }
            .featured-card:first-child .featured-card-image {
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }

            body {
                padding-bottom: calc(var(--tab-nav-height) + var(--safe-bottom) + 16px);
            }

            .site-header {
                height: var(--header-height);
            }

            .header-inner {
                padding: 0 16px;
                gap: 12px;
            }

            .logo-link {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .nav-desktop {
                display: none;
            }

            .header-actions .btn-header {
                font-size: 0.78rem;
                padding: 7px 14px;
            }

            .mobile-tab-nav {
                display: flex;
            }

            .category-hero {
                padding: 40px 0 48px;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .category-hero-desc {
                font-size: 0.92rem;
            }

            .hero-stat-number {
                font-size: 1.5rem;
            }

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

            .featured-card:first-child {
                grid-column: 1;
                grid-template-columns: 1fr;
                min-height: auto;
            }

            .featured-card:first-child .featured-card-image {
                min-height: 200px;
                aspect-ratio: 16/9;
            }

            .featured-card {
                min-height: auto;
            }

            .featured-card-image {
                aspect-ratio: 16/9;
            }

            .article-list-item {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }

            .article-list-image {
                width: 100%;
                height: 160px;
            }

            .section {
                padding: 36px 0;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .bracket-flow {
                gap: 8px;
            }

            .bracket-step {
                min-width: 100px;
                padding: 10px 12px;
            }

            .bracket-step:not(:last-child)::after {
                right: -8px;
                font-size: 0.75rem;
            }

            .bracket-icon {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }

            .bracket-step h5 {
                font-size: 0.78rem;
            }

            .bracket-step p {
                font-size: 0.68rem;
                max-width: 90px;
            }

            .subcat-wrapper {
                gap: 6px;
                padding: 4px;
            }

            .subcat-tag {
                padding: 7px 14px;
                font-size: 0.78rem;
            }

            .category-hero-stats {
                gap: 18px;
            }

            .cta-content h2 {
                font-size: 1.5rem;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-links-group {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .ranking-panel {
                padding: 20px 16px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }

            .faq-answer {
                padding: 0 16px;
                font-size: 0.84rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }

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

            .header-inner {
                padding: 0 14px;
            }

            .category-hero {
                padding: 28px 0 36px;
            }

            .category-hero h1 {
                font-size: 1.4rem;
            }

            .category-hero-desc {
                font-size: 0.84rem;
            }

            .subcat-tag {
                padding: 6px 11px;
                font-size: 0.72rem;
            }

            .bracket-flow {
                flex-direction: column;
                gap: 0;
            }

            .bracket-step:not(:last-child)::after {
                content: '\f078';
                right: 50%;
                top: auto;
                bottom: -12px;
                transform: translateX(50%);
            }

            .bracket-step {
                min-width: auto;
                width: 100%;
                flex-direction: row;
                gap: 14px;
                padding: 12px 0;
                text-align: left;
            }

            .bracket-step p {
                max-width: none;
            }

            .featured-card-body {
                padding: 14px 16px 16px;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-inner {
                padding: 0 14px;
            }

            .footer-links-group {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-bottom {
                padding: 16px 14px 0;
            }
        }