/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #8b5cf6;
            --clr-primary-light: #a78bfa;
            --clr-primary-dark: #7c3aed;
            --clr-accent: #00d4ff;
            --clr-accent-light: #66e3ff;
            --clr-accent-dark: #00a8cc;
            --clr-bg: #0a0a0f;
            --clr-bg-alt: #12121e;
            --clr-bg-card: #1a1a2e;
            --clr-bg-card-hover: #22223a;
            --clr-text: #f0f0f5;
            --clr-text-muted: #9a9ab0;
            --clr-text-dim: #6a6a82;
            --clr-border: rgba(139, 92, 246, 0.25);
            --clr-border-light: rgba(0, 212, 255, 0.2);
            --clr-glow: rgba(139, 92, 246, 0.35);
            --clr-glow-accent: rgba(0, 212, 255, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(139, 92, 246, 0.08);
            --shadow-card-hover: 0 12px 48px rgba(139, 92, 246, 0.18), 0 0 0 1px rgba(139, 92, 246, 0.25);
            --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: var(--clr-accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--clr-accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--clr-text);
        }
        p {
            margin-bottom: 1rem;
            color: var(--clr-text-muted);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.25rem;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--clr-text) 0%, var(--clr-primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--clr-text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .mb-4 {
            margin-bottom: 2rem;
        }
        .mb-5 {
            margin-bottom: 3rem;
        }
        .mt-4 {
            margin-top: 2rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* ===== 霓虹导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(10, 10, 15, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--clr-border);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 15, 0.96);
            border-bottom-color: var(--clr-primary);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--clr-text);
            text-decoration: none;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--clr-primary-light);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 0 20px var(--clr-glow);
        }
        .logo span {
            background: linear-gradient(135deg, var(--clr-text), var(--clr-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--clr-text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
            border-radius: 2px;
            transition: var(--transition);
            box-shadow: 0 0 12px var(--clr-glow);
        }
        .nav-list a:hover {
            color: var(--clr-text);
            background: rgba(139, 92, 246, 0.08);
        }
        .nav-list a:hover::after {
            width: 60%;
        }
        .nav-list a.active {
            color: var(--clr-text);
            background: rgba(139, 92, 246, 0.12);
        }
        .nav-list a.active::after {
            width: 70%;
            box-shadow: 0 0 20px var(--clr-glow);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px !important;
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark)) !important;
            color: #fff !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 20px var(--clr-glow);
            border: none;
            transition: var(--transition) !important;
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px var(--clr-glow) !important;
            background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary)) !important;
            color: #fff !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--clr-text);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(139, 92, 246, 0.1);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: linear-gradient(135deg, rgba(10, 10, 15, 0.88), rgba(18, 18, 30, 0.92)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 20% 50%, rgba(139, 92, 246, 0.12) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(139, 92, 246, 0.15);
            border: 1px solid rgba(139, 92, 246, 0.25);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--clr-primary-light);
            margin-bottom: 1.5rem;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: 3.75rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.1;
            margin-bottom: 1.25rem;
            background: linear-gradient(135deg, #ffffff 20%, var(--clr-primary-light) 60%, var(--clr-accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--clr-text-muted);
            max-width: 620px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 24px var(--clr-glow);
            text-decoration: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px var(--clr-glow);
            color: #fff;
            background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary));
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: transparent;
            color: var(--clr-text);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-secondary:hover {
            border-color: var(--clr-primary);
            background: rgba(139, 92, 246, 0.08);
            color: var(--clr-primary-light);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(139, 92, 246, 0.12);
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-item .num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--clr-text);
            letter-spacing: -0.02em;
        }
        .hero-stat-item .num small {
            font-size: 1rem;
            font-weight: 400;
            color: var(--clr-primary-light);
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--clr-text-dim);
            margin-top: 2px;
        }

        /* ===== 品牌介绍 ===== */
        .about-section {
            background: var(--clr-bg-alt);
            position: relative;
        }
        .about-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-primary), var(--clr-accent), transparent);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .about-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(139, 92, 246, 0.15);
            pointer-events: none;
        }
        .about-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .about-text h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .about-text p {
            margin-bottom: 1.2rem;
        }
        .about-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 1.5rem;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.18);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--clr-primary-light);
            transition: var(--transition);
        }
        .tag:hover {
            background: rgba(139, 92, 246, 0.18);
            border-color: var(--clr-primary);
        }
        .tag i {
            font-size: 0.75rem;
        }

        /* ===== 分类入口 ===== */
        .categories-section {
            background: var(--clr-bg);
            position: relative;
        }
        .categories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            cursor: pointer;
            min-height: 340px;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            border-color: var(--clr-primary);
            box-shadow: var(--shadow-card-hover);
        }
        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .category-card .card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-body h3 {
            font-size: 1.35rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .category-card .card-body h3 i {
            color: var(--clr-primary-light);
            font-size: 1.1rem;
        }
        .category-card .card-body p {
            font-size: 0.95rem;
            color: var(--clr-text-muted);
            flex: 1;
        }
        .category-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 28px 20px;
        }
        .category-card .card-footer .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--clr-accent);
            transition: var(--transition);
        }
        .category-card .card-footer .btn-text:hover {
            color: var(--clr-accent-light);
            gap: 12px;
        }
        .category-card .card-footer .badge {
            background: rgba(139, 92, 246, 0.12);
            color: var(--clr-primary-light);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            border: 1px solid rgba(139, 92, 246, 0.12);
        }

        /* ===== 最新资讯 CMS ===== */
        .news-section {
            background: var(--clr-bg-alt);
            position: relative;
        }
        .news-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-accent), var(--clr-primary), transparent);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            border-color: rgba(139, 92, 246, 0.3);
            box-shadow: var(--shadow-card-hover);
        }
        .news-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .news-card .card-content {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--clr-text-dim);
            margin-bottom: 10px;
        }
        .news-card .card-meta .cat {
            background: rgba(0, 212, 255, 0.1);
            color: var(--clr-accent);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }
        .news-card .card-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card .card-content h3 a {
            color: var(--clr-text);
            transition: var(--transition);
        }
        .news-card .card-content h3 a:hover {
            color: var(--clr-primary-light);
        }
        .news-card .card-content p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            flex: 1;
            margin-bottom: 0;
        }
        .news-card .card-content .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--clr-accent);
            margin-top: 16px;
            transition: var(--transition);
        }
        .news-card .card-content .read-more:hover {
            color: var(--clr-accent-light);
            gap: 12px;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--clr-border);
        }
        .news-empty i {
            font-size: 3rem;
            color: var(--clr-text-dim);
            margin-bottom: 1rem;
        }
        .news-empty p {
            font-size: 1.1rem;
            color: var(--clr-text-muted);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--clr-bg);
            position: relative;
            padding: 70px 0;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--clr-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-card .icon {
            font-size: 2.2rem;
            color: var(--clr-primary-light);
            margin-bottom: 12px;
        }
        .stat-card .num {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--clr-text), var(--clr-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            margin-top: 4px;
        }

        /* ===== 特色内容 ===== */
        .features-section {
            background: var(--clr-bg-alt);
            position: relative;
        }
        .features-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid var(--clr-border);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--clr-accent);
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.06);
        }
        .feature-card .icon {
            font-size: 2.5rem;
            color: var(--clr-accent);
            margin-bottom: 18px;
            display: inline-block;
            background: rgba(0, 212, 255, 0.08);
            width: 72px;
            height: 72px;
            line-height: 72px;
            border-radius: 50%;
            border: 1px solid rgba(0, 212, 255, 0.12);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--clr-bg);
            position: relative;
        }
        .faq-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--clr-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--clr-primary-light);
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--clr-primary-light);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--clr-text-muted);
            display: none;
            line-height: 1.7;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--clr-bg-alt);
            position: relative;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--clr-accent), var(--clr-primary), transparent);
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(0, 212, 255, 0.06));
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: var(--clr-text-muted);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
        }
        .cta-box .btn-primary {
            position: relative;
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-bg);
            border-top: 1px solid var(--clr-border);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--clr-text-dim);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--clr-text);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--clr-text-dim);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--clr-primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(139, 92, 246, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--clr-text-dim);
            margin-bottom: 0;
        }
        .footer-bottom .social-links {
            display: flex;
            gap: 14px;
        }
        .footer-bottom .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(139, 92, 246, 0.08);
            color: var(--clr-text-dim);
            border: 1px solid rgba(139, 92, 246, 0.08);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .footer-bottom .social-links a:hover {
            background: rgba(139, 92, 246, 0.18);
            color: var(--clr-primary-light);
            border-color: var(--clr-primary);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(10, 10, 15, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--clr-border);
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list a::after {
                display: none;
            }
            .nav-list a.active {
                background: rgba(139, 92, 246, 0.15);
                border-left: 3px solid var(--clr-primary);
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                margin-top: 8px;
                justify-content: center;
            }
            .hero {
                min-height: 70vh;
                padding: 100px 0 60px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 24px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card .num {
                font-size: 1.8rem;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .about-image img {
                height: 260px;
            }
            .section-padding {
                padding: 50px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-box h2 {
                font-size: 1.25rem;
            }
            .cta-box {
                padding: 28px 18px;
            }
        }

        /* ===== 工具类 ===== */
        .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(--clr-accent);
            outline-offset: 2px;
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
:root {
            --primary: #ff2d55;
            --primary-dark: #cc1f3f;
            --primary-glow: rgba(255, 45, 85, 0.4);
            --secondary: #00d4aa;
            --secondary-glow: rgba(0, 212, 170, 0.3);
            --bg-dark: #0a0a12;
            --bg-card: #12121e;
            --bg-elevated: #1a1a2e;
            --text-primary: #f0f0f5;
            --text-secondary: #a0a0b8;
            --text-muted: #6b6b82;
            --border-color: #2a2a40;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(255, 45, 85, 0.15);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html { scroll-behavior: smooth; }

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

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

        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        input, textarea { font-family: inherit; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ── 导航 ── */
        .site-header {
            background: linear-gradient(135deg, #0a0a12 0%, #14141f 100%);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
        }

        .site-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
            opacity: 0.6;
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 1px;
            transition: opacity var(--transition);
        }
        .logo:hover { opacity: 0.85; color: #fff; }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 0 20px var(--primary-glow);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            color: var(--text-secondary);
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-list a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-list a.active {
            color: #fff;
            background: rgba(255, 45, 85, 0.15);
            box-shadow: inset 0 -2px 0 var(--primary), 0 0 20px var(--primary-glow);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: 20px;
            box-shadow: 0 4px 20px var(--primary-glow);
            font-weight: 600;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--primary-glow);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.4rem;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(255, 255, 255, 0.05); }

        @media screen and (max-width: 1024px) {
            .nav-list a { padding: 6px 14px; font-size: 0.82rem; }
        }

        @media screen and (max-width: 820px) {
            .nav-toggle { display: block; }
            .nav-list {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: linear-gradient(180deg, #0e0e1a 0%, #0a0a12 100%);
                border-bottom: 2px solid var(--border-color);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
            }
            .nav-list.open { display: flex; }
            .nav-list a { width: 100%; padding: 12px 16px; border-radius: 8px; }
            .nav-list a.nav-cta { margin-top: 8px; text-align: center; }
        }

        /* ── 文章头部横幅 ── */
        .article-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0a0a12 0%, #1a0a14 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 120px;
            background: linear-gradient(0deg, var(--bg-dark) 0%, transparent 100%);
            z-index: 1;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--secondary); }
        .article-breadcrumb a:hover { color: #fff; }
        .article-breadcrumb span { color: var(--text-muted); }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            color: #fff;
            max-width: 800px;
            text-shadow: 0 4px 30px rgba(0,0,0,0.5);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .article-meta .badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .article-meta i { margin-right: 6px; color: var(--primary); }

        @media screen and (max-width: 768px) {
            .article-banner { min-height: 240px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; }
        }

        /* ── 文章主体 ── */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: #fff;
            line-height: 1.3;
        }
        .article-content h2:first-child { margin-top: 0; }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.02rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }
        .article-content ul, .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
            color: var(--text-secondary);
        }
        .article-content li { margin-bottom: 10px; line-height: 1.7; }
        .article-content img {
            border-radius: var(--radius-md);
            margin: 32px auto;
            box-shadow: 0 8px 30px rgba(0,0,0,0.4);
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(255, 45, 85, 0.06);
            padding: 20px 28px;
            margin: 28px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content a { color: var(--secondary); text-decoration: underline; }
        .article-content a:hover { color: #fff; }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--primary); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 1.8rem; color: #fff; margin-bottom: 16px; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 24px; }
        .article-not-found .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 20px var(--primary-glow);
            text-decoration: none;
        }
        .article-not-found .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--primary-glow); }

        /* ── 侧边栏 ── */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-widget {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-widget h3 i { color: var(--primary); }
        .sidebar-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-list li { margin-bottom: 4px; }
        .sidebar-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 8px;
            color: var(--text-secondary);
            transition: all var(--transition);
            font-size: 0.9rem;
        }
        .sidebar-list a:hover {
            background: rgba(255,255,255,0.04);
            color: #fff;
            padding-left: 18px;
        }
        .sidebar-list a .tag-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            box-shadow: 0 0 10px var(--primary-glow);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.8rem;
            transition: all var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 20px var(--primary-glow);
        }

        @media screen and (max-width: 1024px) {
            .article-grid { grid-template-columns: 1fr; gap: 32px; }
            .article-content { padding: 32px; }
        }
        @media screen and (max-width: 640px) {
            .article-content { padding: 20px; }
            .article-content h2 { font-size: 1.3rem; }
            .article-content p { font-size: 0.95rem; }
        }

        /* ── 相关推荐 ── */
        .related-section {
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section h2 i { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-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);
        }
        .related-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: 0 12px 40px rgba(255, 45, 85, 0.15);
        }
        .related-card .card-img {
            height: 180px;
            background: linear-gradient(135deg, #1a1a2e, #2a1a2e);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: #fff; }
        .related-card .card-body h3 a:hover { color: var(--secondary); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }
        .related-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .related-card .card-meta .badge-sm {
            padding: 2px 12px;
            border-radius: 12px;
            background: rgba(255, 45, 85, 0.15);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
        }

        @media screen and (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media screen and (max-width: 640px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-section h2 { font-size: 1.3rem; }
        }

        /* ── CTA 区块 ── */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, #0a0a12 0%, #1a0a14 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .article-cta h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .article-cta p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .article-cta .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .article-cta .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 4px 20px var(--primary-glow);
            transition: all var(--transition);
            border: none;
        }
        .article-cta .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px var(--primary-glow);
        }
        .article-cta .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--border-color);
            transition: all var(--transition);
        }
        .article-cta .btn-secondary:hover {
            border-color: var(--secondary);
            background: rgba(0, 212, 170, 0.08);
        }

        @media screen and (max-width: 640px) {
            .article-cta h2 { font-size: 1.4rem; }
            .article-cta .btn-primary, .article-cta .btn-secondary { width: 100%; justify-content: center; }
        }

        /* ── 页脚 ── */
        .site-footer {
            background: linear-gradient(180deg, #0a0a12 0%, #06060a 100%);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; margin-top: 12px; }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 10px var(--primary-glow);
        }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul a:hover { color: var(--secondary); padding-left: 4px; }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p { color: var(--text-muted); font-size: 0.82rem; }
        .social-links { display: flex; gap: 12px; }
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .social-links a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 0 20px var(--primary-glow);
        }

        @media screen and (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media screen and (max-width: 640px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ── 响应式增强 ── */
        @media screen and (max-width: 480px) {
            .article-banner h1 { font-size: 1.3rem; }
            .article-content { padding: 16px; border-radius: var(--radius-md); }
            .sidebar-widget { padding: 20px; }
            .header-inner { padding: 0 16px; height: 60px; }
            .logo { font-size: 1.05rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 0.8rem; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #ff2d6a;
            --primary-hover: #e6004e;
            --primary-glow: rgba(255, 45, 106, 0.4);
            --secondary: #7c5cfc;
            --secondary-hover: #6240e0;
            --accent: #ffd166;
            --bg-dark: #0b0b14;
            --bg-dark2: #12121f;
            --bg-card: #1a1a2e;
            --bg-card-hover: #222240;
            --text-light: #f0f0f5;
            --text-muted: #9a9ab0;
            --text-dim: #6a6a84;
            --border-color: #2a2a44;
            --border-glow: rgba(255, 45, 106, 0.25);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 45, 106, 0.05);
            --shadow-glow: 0 0 30px rgba(255, 45, 106, 0.2);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-w: 1200px;
        }

        /* ===== 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-light);
            line-height: 1.7;
            font-size: 1rem;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        ul {
            list-style: none;
        }

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

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-light);
        }

        h1 {
            font-size: 3rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-bottom: 0.6rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-bottom: 0.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 12px auto 0;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .section-title p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0.6rem auto 0;
            font-size: 1.05rem;
        }

        .text-glow {
            color: var(--primary);
            text-shadow: 0 0 30px var(--primary-glow);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-dim {
            color: var(--text-dim);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 11, 20, 0.92);
            backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }

        .header-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--text-light);
            letter-spacing: -0.03em;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
            text-shadow: 0 0 30px var(--primary-glow);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 0 20px var(--primary-glow);
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-list a.active {
            color: var(--text-light);
            background: rgba(255, 45, 106, 0.15);
            box-shadow: inset 0 -2px 0 var(--primary), 0 0 20px var(--primary-glow);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 40%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 22px;
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 20px var(--primary-glow);
            margin-left: 8px;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--primary-glow);
            background: linear-gradient(135deg, var(--primary-hover), var(--secondary-hover));
            color: #fff;
        }

        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-light);
            padding: 4px 10px;
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            border: 1px solid var(--border-color);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--primary);
        }

        /* ===== Banner ===== */
        .category-banner {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, rgba(11, 11, 20, 0.92), rgba(18, 18, 31, 0.88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 45, 106, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 92, 252, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .category-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, #fff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-banner p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 650px;
            line-height: 1.8;
        }
        .category-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .category-banner .banner-tags span {
            padding: 5px 16px;
            border-radius: 30px;
            background: rgba(255, 45, 106, 0.12);
            border: 1px solid rgba(255, 45, 106, 0.25);
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        /* ===== Section spacing ===== */
        .section-block {
            padding: 80px 0;
            border-bottom: 1px solid rgba(42, 42, 68, 0.4);
        }
        .section-block:last-of-type {
            border-bottom: none;
        }
        .section-block.bg-dark2 {
            background: var(--bg-dark2);
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .fashion-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .fashion-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow), 0 20px 60px rgba(0, 0, 0, 0.6);
        }
        .fashion-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            border-radius: var(--radius) var(--radius) 0 0;
            transition: var(--transition);
        }
        .fashion-card:hover .card-img {
            transform: scale(1.03);
        }
        .fashion-card .card-body {
            padding: 22px 24px 26px;
        }
        .fashion-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .fashion-card .card-body h3 a {
            color: var(--text-light);
        }
        .fashion-card .card-body h3 a:hover {
            color: var(--primary);
        }
        .fashion-card .card-body p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .fashion-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-dim);
            border-top: 1px solid rgba(42, 42, 68, 0.5);
            padding-top: 14px;
            margin-top: 6px;
        }
        .fashion-card .card-meta i {
            margin-right: 4px;
        }
        .fashion-card .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            background: rgba(255, 45, 106, 0.15);
            color: var(--primary);
            border: 1px solid rgba(255, 45, 106, 0.2);
            margin-bottom: 10px;
        }

        /* ===== Featured / Highlight ===== */
        .featured-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .featured-block .featured-img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            width: 100%;
            height: 360px;
            object-fit: cover;
            border: 1px solid var(--border-color);
        }
        .featured-block .featured-content h2 {
            font-size: 2rem;
        }
        .featured-block .featured-content p {
            color: var(--text-muted);
            margin: 16px 0 24px;
            font-size: 1.02rem;
            line-height: 1.8;
        }
        .featured-block .featured-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .featured-block .featured-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-light);
            font-weight: 500;
        }
        .featured-block .featured-list li i {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 45, 106, 0.12);
            border-radius: 50%;
            color: var(--primary);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary));
            border-radius: 2px;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            padding-left: 30px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -34px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--bg-dark);
            border: 3px solid var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 20px var(--primary-glow), 0 0 0 4px rgba(255, 45, 106, 0.1);
            z-index: 2;
        }
        .timeline-item .tl-date {
            font-size: 0.82rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .timeline-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== Tags Cloud ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 10px;
        }
        .tags-cloud a {
            padding: 8px 24px;
            border-radius: 30px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            font-size: 0.88rem;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
        }
        .tags-cloud a:hover {
            background: rgba(255, 45, 106, 0.12);
            border-color: var(--primary);
            color: var(--text-light);
            box-shadow: 0 0 20px var(--primary-glow);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px 28px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(255, 45, 106, 0.06);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 1.02rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-light);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-item .faq-a {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-top: 12px;
            border-top: 1px solid rgba(42, 42, 68, 0.4);
            padding-top: 14px;
        }
        .faq-item .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, rgba(255, 45, 106, 0.08), rgba(124, 92, 252, 0.08));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 45, 106, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 2rem;
            margin-bottom: 0.6rem;
        }
        .cta-block p {
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
        }
        .cta-block .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: transparent;
            color: var(--text-light);
            text-decoration: none;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 24px var(--primary-glow);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px var(--primary-glow);
            color: #fff;
        }
        .btn-outline {
            border: 2px solid var(--border-color);
            color: var(--text-light);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 24px var(--primary-glow);
            background: rgba(255, 45, 106, 0.06);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark2);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 10px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-light);
            letter-spacing: -0.01em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--border-color);
            padding-top: 28px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            color: var(--text-dim);
            font-size: 0.82rem;
        }
        .social-links {
            display: flex;
            gap: 14px;
        }
        .social-links a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 0 24px var(--primary-glow);
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .featured-block .featured-img {
                height: 280px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            h1 {
                font-size: 2.4rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .category-banner h1 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
                padding: 0 16px;
            }
            .nav-list {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 11, 20, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
                max-height: 80vh;
                overflow-y: auto;
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                padding: 12px 18px;
                font-size: 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-list a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }

            .category-banner {
                padding: 110px 0 50px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .category-banner p {
                font-size: 1rem;
            }

            .section-block {
                padding: 50px 0;
            }
            .section-title {
                margin-bottom: 2rem;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .featured-block .featured-img {
                height: 220px;
            }
            .featured-block .featured-content h2 {
                font-size: 1.5rem;
            }

            .timeline {
                padding-left: 30px;
            }
            .timeline::before {
                left: 10px;
            }
            .timeline-item::before {
                left: -26px;
                width: 12px;
                height: 12px;
            }
            .timeline-item {
                padding-left: 20px;
            }

            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .tags-cloud a {
                padding: 6px 16px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 54px;
                padding: 0 12px;
            }
            .logo {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .nav-list {
                top: 54px;
                padding: 16px 18px;
            }
            .category-banner h1 {
                font-size: 1.6rem;
            }
            .category-banner .banner-tags span {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            h2 {
                font-size: 1.4rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .card-grid {
                gap: 16px;
            }
            .fashion-card .card-body {
                padding: 16px 18px 20px;
            }
            .fashion-card .card-img {
                height: 170px;
            }
            .cta-block {
                padding: 30px 18px;
            }
            .cta-block .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                padding: 10px 24px;
                font-size: 0.88rem;
                width: 100%;
                justify-content: center;
            }
            .faq-item {
                padding: 16px 20px;
            }
            .footer-grid {
                gap: 18px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #ff2d55;
            --color-primary-dark: #d91a3e;
            --color-primary-light: #ff6b7f;
            --color-secondary: #00d4ff;
            --color-secondary-dark: #00a8cc;
            --color-accent: #ffd700;
            --color-bg-dark: #0b0b0f;
            --color-bg-card: #13131a;
            --color-bg-card-hover: #1a1a26;
            --color-bg-section: #0e0e14;
            --color-bg-section-alt: #111118;
            --color-text: #f0f0f5;
            --color-text-muted: #9a9ab0;
            --color-text-dim: #6a6a80;
            --color-border: rgba(255, 45, 85, 0.25);
            --color-border-light: rgba(255, 255, 255, 0.06);
            --color-glow: rgba(255, 45, 85, 0.35);
            --color-glow-cyan: rgba(0, 212, 255, 0.3);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 45, 85, 0.08);
            --shadow-card-hover: 0 14px 48px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 45, 85, 0.2);
            --shadow-glow: 0 0 30px rgba(255, 45, 85, 0.15);
            --transition: 0.32s cubic-bezier(0.22, 1, 0.36, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --header-height: 68px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--color-bg-dark);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: var(--color-secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-primary-light); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; color: var(--color-text-muted); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section-title {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-subtitle { color: var(--color-text-muted); font-size: 1.05rem; margin-bottom: 2.5rem; max-width: 600px; }
        .section-header { text-align: center; margin-bottom: 3rem; }
        .section-header .section-subtitle { margin-left: auto; margin-right: auto; }

        /* ===== 暗色霓虹导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 11, 15, 0.92);
            backdrop-filter: blur(18px) saturate(1.2);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(11, 11, 15, 0.98); }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-text) !important;
            letter-spacing: -0.02em;
            text-shadow: 0 0 20px rgba(255, 45, 85, 0.2);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 0 20px rgba(255, 45, 85, 0.25);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.02em;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--color-primary);
            border-radius: 4px;
            transition: var(--transition);
            box-shadow: 0 0 12px var(--color-glow);
        }
        .nav-list a:hover { color: var(--color-text); background: rgba(255, 255, 255, 0.04); }
        .nav-list a:hover::after { transform: translateX(-50%) scaleX(1); }
        .nav-list a.active {
            color: #fff;
            background: rgba(255, 45, 85, 0.15);
            text-shadow: 0 0 12px rgba(255, 45, 85, 0.3);
        }
        .nav-list a.active::after { transform: translateX(-50%) scaleX(1); background: var(--color-primary); box-shadow: 0 0 20px var(--color-glow); }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff !important;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 0 20px rgba(255, 45, 85, 0.25);
            margin-left: 6px;
        }
        .nav-list a.nav-cta::after { display: none; }
        .nav-list a.nav-cta:hover { transform: scale(1.04); box-shadow: 0 0 30px rgba(255, 45, 85, 0.4); }
        .nav-toggle { display: none; background: none; border: none; color: var(--color-text); font-size: 1.6rem; cursor: pointer; padding: 4px 8px; border-radius: var(--radius-sm); transition: var(--transition); }
        .nav-toggle:hover { background: rgba(255, 255, 255, 0.06); }

        /* ===== Hero / Banner ===== */
        .page-hero {
            padding: 140px 0 80px;
            position: relative;
            background: linear-gradient(135deg, #0b0b0f 0%, #1a0a14 50%, #0b0b0f 100%);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 45, 85, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 2; }
        .page-hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            margin-bottom: 0.75rem;
            background: linear-gradient(135deg, #fff 0%, var(--color-primary-light) 50%, var(--color-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.15;
        }
        .page-hero p {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            max-width: 620px;
            margin-bottom: 1.5rem;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: var(--color-text-muted);
            backdrop-filter: blur(4px);
        }
        .hero-tags span i { color: var(--color-primary); }

        /* ===== 板块通用 ===== */
        .section-block { padding: 70px 0; }
        .section-block.alt-bg { background: var(--color-bg-section-alt); }

        /* ===== 卡片网格 ===== */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-item {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-card-hover), var(--shadow-glow);
            background: var(--color-bg-card-hover);
        }
        .card-item .card-img {
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: var(--color-bg-section);
        }
        .card-item h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .card-item h3 a { color: var(--color-text); }
        .card-item h3 a:hover { color: var(--color-primary-light); }
        .card-item p { font-size: 0.92rem; margin-bottom: 12px; flex: 1; }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--color-text-dim);
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .card-meta i { margin-right: 4px; }
        .badge {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 45, 85, 0.15);
            color: var(--color-primary-light);
            border: 1px solid rgba(255, 45, 85, 0.15);
        }
        .badge-cyan { background: rgba(0, 212, 255, 0.12); color: var(--color-secondary); border-color: rgba(0, 212, 255, 0.15); }
        .badge-gold { background: rgba(255, 215, 0, 0.12); color: var(--color-accent); border-color: rgba(255, 215, 0, 0.15); }

        /* ===== 特色图文板块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-grid .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            background: var(--color-bg-card);
        }
        .feature-grid .feature-content h3 { font-size: 1.6rem; margin-bottom: 12px; }
        .feature-grid .feature-content ul { margin-top: 16px; }
        .feature-grid .feature-content ul li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .feature-grid .feature-content ul li:last-child { border-bottom: none; }
        .feature-grid .feature-content ul li i { color: var(--color-primary); margin-top: 3px; }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            text-align: center;
        }
        .stat-item {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            padding: 28px 16px;
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
        }
        .stat-item:hover { border-color: var(--color-border); box-shadow: var(--shadow-glow); }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label { color: var(--color-text-muted); font-size: 0.92rem; margin-top: 4px; }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary), transparent);
            border-radius: 4px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 2px solid var(--color-bg-dark);
            box-shadow: 0 0 16px var(--color-glow);
        }
        .timeline-item .tl-title { font-weight: 700; font-size: 1.05rem; color: var(--color-text); }
        .timeline-item .tl-desc { font-size: 0.9rem; color: var(--color-text-muted); margin-top: 2px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(255, 255, 255, 0.08); }
        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: var(--color-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            transition: var(--transition);
        }
        .faq-question i { color: var(--color-primary); transition: var(--transition); }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 22px 18px;
            color: var(--color-text-muted);
            font-size: 0.92rem;
            display: none;
            line-height: 1.7;
        }
        .faq-answer.show { display: block; }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, rgba(255, 45, 85, 0.08), rgba(0, 212, 255, 0.06));
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            border: 1px solid rgba(255, 45, 85, 0.12);
            box-shadow: var(--shadow-card);
        }
        .cta-block h2 { font-size: 1.8rem; margin-bottom: 10px; }
        .cta-block p { max-width: 520px; margin: 0 auto 24px; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff !important;
            box-shadow: 0 0 20px rgba(255, 45, 85, 0.25);
        }
        .btn-primary:hover { transform: scale(1.04); box-shadow: 0 0 30px rgba(255, 45, 85, 0.4); }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text) !important;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .btn-secondary:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #08080c;
            border-top: 1px solid var(--color-border-light);
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-brand .logo { margin-bottom: 14px; }
        .footer-brand p { font-size: 0.9rem; color: var(--color-text-dim); max-width: 300px; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: var(--color-text); margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { color: var(--color-text-muted); font-size: 0.88rem; }
        .footer-col ul li a:hover { color: var(--color-primary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.85rem;
            color: var(--color-text-dim);
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p { margin: 0; color: var(--color-text-dim); }
        .social-links { display: flex; gap: 12px; }
        .social-links a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            color: var(--color-text-muted);
            transition: var(--transition);
        }
        .social-links a:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); box-shadow: 0 0 20px rgba(255, 45, 85, 0.25); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .feature-grid { grid-template-columns: 1fr; }
            .feature-grid .feature-img { order: -1; max-height: 300px; }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 11, 15, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
                gap: 4px;
            }
            .nav-list.open { display: flex; }
            .nav-list a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .nav-list a.nav-cta { margin-left: 0; text-align: center; margin-top: 6px; }
            .nav-toggle { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.7rem; }
            .page-hero { padding: 110px 0 50px; min-height: auto; }
            .page-hero h1 { font-size: 2.2rem; }
            .grid-cards { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-block { padding: 30px 20px; }
            .section-block { padding: 50px 0; }
            .section-title { font-size: 1.6rem; }
            .timeline { padding-left: 28px; }
            .timeline-item::before { left: -22px; width: 10px; height: 10px; }
        }

        @media (max-width: 520px) {
            .page-hero h1 { font-size: 1.8rem; }
            .hero-tags span { font-size: 0.78rem; padding: 4px 12px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-number { font-size: 1.8rem; }
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
            .card-item { padding: 18px; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .gap-1 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }
        .inline-flex { display: inline-flex; align-items: center; gap: 6px; }