/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0f0f1a;
            --primary-light: #1a1a2e;
            --secondary: #e8a838;
            --secondary-dark: #c77d1f;
            --accent: #f0c060;
            --bg-body: #0a0a14;
            --bg-card: #16162a;
            --bg-card-hover: #1e1e3a;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0c8;
            --text-muted: #707088;
            --border-color: #2a2a4a;
            --border-light: #3a3a5a;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 30px rgba(232,168,56,0.15);
            --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ========== Reset / Base ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
        button { cursor: pointer; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { color: var(--text-secondary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(10,10,20,0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(42,42,74,0.5);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(10,10,20,0.96); border-bottom-color: var(--border-color); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: var(--secondary); font-size: 1.4rem; }
        .logo:hover { color: var(--accent); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-list a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        .nav-list a:hover { color: var(--text-primary); }
        .nav-list a:hover::after { width: 100%; }
        .nav-list a.active { color: var(--secondary); }
        .nav-list a.active::after { width: 100%; }
        .nav-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary) !important;
            padding: 8px 22px !important;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(232,168,56,0.3);
        }
        .nav-cta::after { display: none !important; }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(232,168,56,0.45); color: var(--primary) !important; }
        .menu-toggle {
            display: none;
            background: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            padding: 4px;
            border-radius: var(--radius-sm);
        }
        .menu-toggle:focus-visible { outline: 2px solid var(--secondary); outline-offset: 4px; }

        /* ========== Hero ========== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 120px 24px 80px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,10,20,0.70) 0%, rgba(10,10,20,0.85) 50%, rgba(10,10,20,0.95) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 30%, rgba(232,168,56,0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(232,168,56,0.15);
            border: 1px solid rgba(232,168,56,0.3);
            color: var(--accent);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 2px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, #f0e6c0, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary);
            box-shadow: 0 6px 24px rgba(232,168,56,0.35);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 36px rgba(232,168,56,0.5); color: var(--primary); }
        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid rgba(232,168,56,0.4);
        }
        .btn-secondary:hover { border-color: var(--secondary); background: rgba(232,168,56,0.08); transform: translateY(-3px); color: var(--secondary); }
        .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 1.4rem;
            animation: bounce 2s infinite;
        }
        @keyframes bounce {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(8px); }
        }

        /* ========== Section通用 ========== */
        .section {
            padding: 80px 0;
        }
        .section-dark { background: var(--primary); }
        .section-darker { background: var(--bg-body); }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 52px;
        }
        .section-header h2 {
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--secondary), transparent);
            margin: 12px auto 0;
            border-radius: 4px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
        }
        .section-title-light { color: var(--text-primary); }

        /* ========== Intro板块 ========== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-text h2 { margin-bottom: 20px; }
        .intro-text p { margin-bottom: 16px; font-size: 1.05rem; }
        .intro-text .features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }
        .intro-text .features li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .intro-text .features li i { color: var(--secondary); font-size: 0.9rem; }
        .intro-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
        .intro-image img { width: 100%; height: 400px; object-fit: cover; transition: var(--transition); }
        .intro-image:hover img { transform: scale(1.03); }

        /* ========== 分类卡片 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-8px); border-color: var(--secondary); box-shadow: var(--shadow-glow); background: var(--bg-card-hover); }
        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .category-card .card-body {
            padding: 24px;
        }
        .category-card .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.25rem;
        }
        .category-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .category-card .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(232,168,56,0.12);
            color: var(--secondary);
            border: 1px solid rgba(232,168,56,0.2);
        }

        /* ========== 资讯列表 ========== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:hover { border-color: var(--secondary); background: var(--bg-card-hover); transform: translateX(4px); }
        .news-item .news-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(232,168,56,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.2rem;
        }
        .news-item .news-info { flex: 1; }
        .news-item .news-info h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .news-item .news-info p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 6px; }
        .news-item .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-item .news-meta span { display: flex; align-items: center; gap: 4px; }
        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        /* ========== 统计数据 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            padding: 36px 20px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-item:hover { border-color: var(--secondary); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--secondary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-muted);
        }
        .stat-item .stat-icon { font-size: 2rem; color: var(--secondary); margin-bottom: 12px; }

        /* ========== FAQ ========== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--secondary); }
        .faq-question i { transition: var(--transition); color: var(--text-muted); font-size: 1.1rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--secondary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 80px 24px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2.2rem; margin-bottom: 16px; }
        .cta-section p { max-width: 560px; margin: 0 auto 32px; color: var(--text-muted); font-size: 1.05rem; }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-color);
            padding: 48px 24px 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 12px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 300px; }
        .footer-col h4 { font-size: 1rem; margin-bottom: 16px; color: var(--text-primary); }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding: 4px 0;
        }
        .footer-col a:hover { color: var(--secondary); }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--secondary); }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.7rem; }
            .hero h1 { font-size: 2.8rem; }
            .intro-grid { gap: 32px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .menu-toggle { display: block; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(10,10,20,0.98);
                backdrop-filter: blur(18px);
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-color);
            }
            .nav-list.open a { width: 100%; padding: 8px 0; }
            .nav-list.open .nav-cta { text-align: center; }
            .hero { min-height: 90vh; padding: 100px 20px 60px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .intro-grid { grid-template-columns: 1fr; }
            .intro-image img { height: 260px; }
            .intro-text .features { grid-template-columns: 1fr; }
            .section { padding: 56px 0; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .news-item { flex-direction: column; padding: 16px; }
            .news-item .news-icon { width: 36px; height: 36px; font-size: 1rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.7rem; }
            .category-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.8rem; }
            h2 { font-size: 1.4rem; }
            .btn { padding: 12px 24px; font-size: 0.9rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .section-header { margin-bottom: 32px; }
            .hero-actions { flex-direction: column; align-items: center; }
        }

        /* ========== 辅助 ========== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .focus-visible:focus-visible { outline: 2px solid var(--secondary); outline-offset: 4px; border-radius: 4px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c3fc5;
            --primary-dark: #4a2a8a;
            --primary-light: #8b6fd0;
            --primary-glow: rgba(108, 63, 197, 0.35);
            --accent: #f5a623;
            --accent-dark: #d4891a;
            --bg-dark: #0f0b1a;
            --bg-mid: #1a1428;
            --bg-card: #221c36;
            --bg-surface: #2a2342;
            --text-light: #f0ecf8;
            --text-muted: #b0a8c8;
            --text-weak: #7a7298;
            --border-color: #3a3258;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(108, 63, 197, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

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

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 标题通用 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, var(--text-light) 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 640px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            z-index: 1000;
            background: rgba(15, 11, 26, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(58, 50, 88, 0.5);
            transition: background var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.03em;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--text-light), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: all var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--text-light);
            background: rgba(108, 63, 197, 0.15);
        }
        .nav-list a.active {
            color: var(--text-light);
            background: rgba(108, 63, 197, 0.25);
            box-shadow: inset 0 -2px 0 var(--accent);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 18px var(--primary-glow);
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px var(--primary-glow);
        }
        .nav-list a.nav-cta i {
            margin-right: 6px;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            color: var(--text-light);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(108, 63, 197, 0.15);
        }

        /* ===== Banner / 页面首屏 ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 100px 0 80px;
            background: linear-gradient(160deg, #0f0b1a 0%, #1a1428 40%, #221c36 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 63, 197, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .banner-content h1 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff 0%, var(--primary-light) 60%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .banner-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags .tag {
            background: rgba(108, 63, 197, 0.2);
            border: 1px solid rgba(108, 63, 197, 0.3);
            color: var(--text-light);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .banner-tags .tag i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 筛选/分类标签栏 ===== */
        .filter-bar {
            padding: 24px 0 8px;
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: var(--header-h);
            z-index: 100;
            backdrop-filter: blur(12px);
            background: rgba(15, 11, 26, 0.92);
        }
        .filter-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .filter-label {
            font-weight: 600;
            color: var(--text-weak);
            font-size: 0.9rem;
            margin-right: 8px;
        }
        .filter-btn {
            padding: 6px 18px;
            border-radius: 30px;
            background: transparent;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--text-light);
            background: rgba(108, 63, 197, 0.1);
        }
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px var(--primary-glow);
        }
        .filter-btn i {
            margin-right: 6px;
        }

        /* ===== 游戏卡片网格 ===== */
        .game-grid-section {
            padding: 60px 0 80px;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .game-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: 0 16px 48px rgba(108, 63, 197, 0.25);
        }
        .game-card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-surface);
        }
        .game-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .game-card:hover .game-card-cover img {
            transform: scale(1.06);
        }
        .game-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #1a1428;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 30px;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 12px rgba(245, 166, 35, 0.4);
        }
        .game-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 11, 26, 0.7) 0%, transparent 60%);
            pointer-events: none;
        }
        .game-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .game-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .game-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .game-card-meta span {
            font-size: 0.8rem;
            color: var(--text-weak);
            background: rgba(58, 50, 88, 0.5);
            padding: 2px 10px;
            border-radius: 20px;
        }
        .game-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .game-card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .game-card-rating i {
            color: var(--accent);
        }
        .game-card-btn {
            padding: 6px 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 4px 14px var(--primary-glow);
            border: none;
            cursor: pointer;
        }
        .game-card-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--primary-glow);
        }

        /* ===== 特色 / 数据板块 ===== */
        .feature-strip {
            padding: 60px 0;
            background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-dark) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .feature-item {
            padding: 28px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .feature-item:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .feature-item i {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 14px;
        }
        .feature-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-light);
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .feature-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        /* ===== 资讯/文章列表 ===== */
        .news-section {
            padding: 60px 0 80px;
        }
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 16px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .news-item:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .news-thumb {
            width: 120px;
            min-height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-surface);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-content {
            flex: 1;
        }
        .news-content h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-weak);
        }
        .news-meta i {
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0 80px;
            background: var(--bg-mid);
            border-top: 1px solid var(--border-color);
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 0;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            background: none;
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 600;
            padding: 18px 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            text-align: left;
            border: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(108, 63, 197, 0.08);
        }
        .faq-question i {
            color: var(--accent);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            text-align: center;
            background: linear-gradient(160deg, #1a1428 0%, #221c36 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.8rem;
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-content p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-btn {
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 24px var(--primary-glow);
        }
        .cta-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px var(--primary-glow);
            color: #fff;
        }
        .cta-btn-secondary {
            background: transparent;
            color: var(--text-light);
            border: 2px solid var(--border-color);
        }
        .cta-btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(108, 63, 197, 0.1);
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a0812;
            border-top: 1px solid var(--border-color);
            padding: 56px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        .footer-brand p {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            color: var(--text-weak);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-col a i {
            margin-right: 8px;
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            max-width: var(--container-max);
            margin: 36px auto 0;
            padding: 20px 24px 0;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .footer-bottom a {
            color: var(--text-weak);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .menu-toggle {
                display: block;
            }
            .nav-list {
                position: absolute;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(15, 11, 26, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s ease;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 12px 0;
                font-size: 1rem;
            }
            .nav-list a.nav-cta {
                margin-top: 8px;
            }

            .page-banner {
                padding: 80px 0 60px;
                min-height: 280px;
            }
            .banner-content h1 {
                font-size: 2rem;
            }
            .banner-content p {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.6rem;
            }
            .game-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .game-card-body {
                padding: 14px 16px 16px;
            }
            .game-card-title {
                font-size: 1rem;
            }
            .game-card-meta span {
                font-size: 0.72rem;
            }
            .game-card-desc {
                font-size: 0.82rem;
                -webkit-line-clamp: 2;
            }

            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-item {
                padding: 20px 12px;
            }
            .feature-item i {
                font-size: 1.8rem;
            }
            .feature-number {
                font-size: 2rem;
            }

            .news-item {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                min-height: 140px;
            }

            .filter-bar {
                top: var(--header-h);
                padding: 16px 0 8px;
            }
            .filter-inner {
                gap: 6px;
            }
            .filter-btn {
                font-size: 0.78rem;
                padding: 4px 14px;
            }

            .cta-content h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-brand p {
                margin: 0 auto;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .banner-content h1 {
                font-size: 1.7rem;
            }
            .container {
                padding: 0 16px;
            }
            .page-banner {
                padding: 70px 0 50px;
            }
            .news-thumb {
                min-height: 100px;
            }
            .cta-btns {
                flex-direction: column;
                align-items: center;
            }
            .cta-btn {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
        }

        /* ===== 辅助类 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-primary-light {
            color: var(--primary-light);
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .text-center {
            text-align: center;
        }

        /* 骨架过渡 */
        .fade-in {
            animation: fadeIn 0.6s ease both;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #f1948a;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --bg-dark: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #16213e;
            --bg-light: #1c1c3a;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0c8;
            --text-muted: #7a7a9a;
            --border-color: #2a2a4a;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 48px rgba(231, 76, 60, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
        }

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

        a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        ul,
        ol {
            list-style: none;
        }

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

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

        .container-sm {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .logo i {
            color: var(--primary);
            font-size: 28px;
            filter: drop-shadow(0 0 10px rgba(231, 76, 60, 0.4));
        }

        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-list a.active {
            color: var(--text-primary);
            background: rgba(231, 76, 60, 0.15);
            box-shadow: inset 0 0 0 1px rgba(231, 76, 60, 0.2);
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.3);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.45);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero 横幅 ===== */
        .article-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-section) 50%, var(--bg-card) 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.08), transparent 70%);
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(243, 156, 18, 0.06), transparent 70%);
            pointer-events: none;
        }

        .article-hero .container-sm {
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--text-muted);
        }

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

        .article-breadcrumb i {
            font-size: 12px;
            color: var(--text-muted);
        }

        .article-category-badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(231, 76, 60, 0.15);
            border: 1px solid rgba(231, 76, 60, 0.25);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 16px;
        }

        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--primary);
        }

        .article-meta span {
            display: flex;
            align-items: center;
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 50px 0 80px;
            background: var(--bg-dark);
        }

        .article-content {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px 52px;
            box-shadow: var(--shadow);
        }

        .article-content p {
            margin-bottom: 20px;
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text-secondary);
        }

        .article-content h2 {
            font-size: 24px;
            margin: 40px 0 16px;
            color: var(--text-primary);
            padding-left: 16px;
            border-left: 4px solid var(--primary);
        }

        .article-content h3 {
            font-size: 20px;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
            color: var(--text-secondary);
        }

        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
        }

        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }

        .article-content img {
            margin: 24px 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            width: 100%;
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 20px 28px;
            background: rgba(231, 76, 60, 0.06);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content a {
            color: var(--primary-light);
            border-bottom: 1px solid rgba(231, 76, 60, 0.3);
        }

        .article-content a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .article-not-found i {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 24px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 28px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }

        .article-not-found .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(231, 76, 60, 0.35);
        }

        /* ===== 文章底部分享 ===== */
        .article-footer-bar {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .article-tags .tag {
            padding: 4px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            border-color: var(--primary);
            color: var(--primary-light);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-share span {
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .article-share a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
        }

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

        .related-section .section-title h2 {
            font-size: 30px;
            font-weight: 700;
        }

        .related-section .section-title p {
            color: var(--text-muted);
            margin-top: 8px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(231, 76, 60, 0.3);
        }

        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }

        .related-card .card-body {
            padding: 20px 22px 24px;
        }

        .related-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }

        .related-card .card-meta .cat {
            padding: 2px 12px;
            background: rgba(231, 76, 60, 0.1);
            border-radius: 50px;
            color: var(--primary-light);
            font-size: 12px;
        }

        /* ===== CTA ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--bg-card), var(--bg-section));
            border-top: 1px solid var(--border-color);
        }

        .article-cta .cta-box {
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(243, 156, 18, 0.06));
            border: 1px solid rgba(231, 76, 60, 0.2);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
        }

        .article-cta .cta-box h2 {
            font-size: 28px;
            margin-bottom: 12px;
        }

        .article-cta .cta-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .article-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 50px;
            font-size: 18px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 6px 30px rgba(231, 76, 60, 0.3);
        }

        .article-cta .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(231, 76, 60, 0.45);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 2px solid var(--border-color);
            padding: 56px 0 0;
        }

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

        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 24px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            margin-top: 40px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

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

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

            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }

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

            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }

            .nav-list a.nav-cta {
                justify-content: center;
                margin-top: 8px;
            }

            .article-hero {
                padding: 110px 0 40px;
            }

            .article-hero h1 {
                font-size: 26px;
            }

            .article-content {
                padding: 28px 24px;
            }

            .article-content p {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 18px;
            }

            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .footer-brand p {
                max-width: 100%;
            }

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

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

            .article-cta .cta-box {
                padding: 32px 24px;
            }

            .article-cta .cta-box h2 {
                font-size: 22px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-sm {
                padding: 0 16px;
            }

            .article-hero h1 {
                font-size: 22px;
            }

            .article-content {
                padding: 20px 16px;
                border-radius: var(--radius);
            }

            .article-content p {
                font-size: 14.5px;
            }

            .article-category-badge {
                font-size: 12px;
                padding: 3px 12px;
            }

            .article-cta .cta-btn {
                font-size: 16px;
                padding: 12px 28px;
            }

            .related-card .card-img {
                height: 150px;
            }
        }

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

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* 选中样式 */
        ::selection {
            background: rgba(231, 76, 60, 0.3);
            color: #fff;
        }