/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #f5a623;
            --clr-primary-dark: #d4891a;
            --clr-primary-light: #ffd166;
            --clr-accent: #ff6b35;
            --clr-accent-dark: #e55a2b;
            --clr-bg: #0b0e14;
            --clr-bg-alt: #131820;
            --clr-bg-card: #1a212c;
            --clr-bg-card-hover: #222c3a;
            --clr-text: #f0f2f5;
            --clr-text-muted: #8a93a8;
            --clr-text-dim: #5d677d;
            --clr-border: #2a3440;
            --clr-border-light: #3a4656;
            --clr-success: #2ecc71;
            --clr-warning: #f39c12;
            --clr-danger: #e74c3c;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(245, 166, 35, 0.15);
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 24px;
            --space-lg: 48px;
            --space-xl: 80px;
            --space-2xl: 120px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

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

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

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

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

        a:hover {
            color: var(--clr-primary-light);
        }

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        .container--narrow {
            max-width: 880px;
        }

        .container--wide {
            max-width: 1360px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: var(--space-sm) 0;
            transition: var(--transition);
            background: transparent;
        }

        .site-header--scrolled {
            background: rgba(11, 14, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
            padding: 6px 0;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-md);
            background: rgba(11, 14, 20, 0.6);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--clr-border);
            border-radius: 60px;
            padding: 8px 20px 8px 28px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .site-header--scrolled .nav-wrap {
            background: rgba(11, 14, 20, 0.85);
            border-color: var(--clr-border-light);
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--clr-text);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .nav-logo i {
            color: var(--clr-primary);
            font-size: 28px;
        }

        .nav-logo:hover {
            color: var(--clr-primary);
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--clr-text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--clr-text);
            background: var(--clr-primary);
            box-shadow: 0 4px 16px rgba(245, 166, 35, 0.3);
        }

        .nav-links a.active:hover {
            background: var(--clr-primary-dark);
            color: var(--clr-text);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }

        .nav-search {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-muted);
            font-size: 18px;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid transparent;
        }

        .nav-search:hover {
            color: var(--clr-text);
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--clr-border);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--clr-text);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* 移动端导航 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 14, 20, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            z-index: 999;
            padding: 100px var(--space-md) var(--space-md);
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: var(--space-sm);
            overflow-y: auto;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu a {
            font-size: 22px;
            font-weight: 600;
            color: var(--clr-text-muted);
            padding: 14px 24px;
            border-radius: 16px;
            width: 100%;
            max-width: 320px;
            text-align: center;
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            color: var(--clr-text);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a.active {
            color: var(--clr-text);
            background: var(--clr-primary);
        }

        .mobile-close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--clr-text);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--clr-border);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 140px 0 100px;
            overflow: hidden;
            background: var(--clr-bg);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 14, 20, 0.3) 0%, var(--clr-bg) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 166, 35, 0.12);
            border: 1px solid rgba(245, 166, 35, 0.25);
            border-radius: 60px;
            padding: 8px 22px 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--clr-primary-light);
            margin-bottom: var(--space-md);
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            font-size: 16px;
        }

        .hero h1 {
            font-size: clamp(40px, 7vw, 76px);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: var(--space-md);
            letter-spacing: -1px;
            background: linear-gradient(135deg, #ffffff 0%, #ffd166 50%, #f5a623 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: clamp(17px, 2.2vw, 22px);
            color: var(--clr-text-muted);
            max-width: 680px;
            margin: 0 auto var(--space-lg);
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 60px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--clr-primary);
            color: #0b0e14;
            box-shadow: 0 4px 24px rgba(245, 166, 35, 0.35);
        }

        .btn-primary:hover {
            background: var(--clr-primary-dark);
            color: #0b0e14;
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(245, 166, 35, 0.45);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--clr-border-light);
            color: var(--clr-text);
        }

        .btn-outline:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
            background: rgba(245, 166, 35, 0.06);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-lg {
            padding: 18px 42px;
            font-size: 18px;
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--space-lg);
            margin-top: var(--space-xl);
            padding-top: var(--space-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--clr-text);
            letter-spacing: -0.5px;
        }

        .hero-stat-number span {
            color: var(--clr-primary);
        }

        .hero-stat-label {
            font-size: 14px;
            color: var(--clr-text-dim);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--space-2xl) 0;
        }

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

        .section--dark {
            background: var(--clr-bg);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }

        .section-header h2 {
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 800;
            margin-bottom: var(--space-sm);
            letter-spacing: -0.5px;
        }

        .section-header p {
            font-size: 18px;
            color: var(--clr-text-muted);
            max-width: 580px;
            margin: 0 auto;
        }

        .section-header .tag {
            display: inline-block;
            background: rgba(245, 166, 35, 0.1);
            border: 1px solid rgba(245, 166, 35, 0.2);
            border-radius: 60px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--clr-primary-light);
            margin-bottom: var(--space-sm);
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }

        .feature-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
            opacity: 0;
            transition: var(--transition);
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            background: rgba(245, 166, 35, 0.12);
            color: var(--clr-primary);
            margin-bottom: var(--space-md);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: var(--space-sm);
        }

        .feature-card p {
            color: var(--clr-text-muted);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== 游戏分类 / 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }

        .game-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            transition: var(--transition);
            cursor: pointer;
        }

        .game-card:hover {
            transform: translateY(-6px);
            border-color: var(--clr-border-light);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }

        .game-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

        .game-card:hover .game-card-img {
            transform: scale(1.03);
        }

        .game-card-body {
            padding: var(--space-md);
        }

        .game-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .game-card-body p {
            color: var(--clr-text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        .game-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: var(--space-sm);
        }

        .tag-sm {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--clr-text-dim);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .tag-sm--hot {
            background: rgba(231, 76, 60, 0.15);
            color: #ff7a6b;
            border-color: rgba(231, 76, 60, 0.2);
        }

        .tag-sm--new {
            background: rgba(46, 204, 113, 0.15);
            color: #5deaa0;
            border-color: rgba(46, 204, 113, 0.2);
        }

        /* ===== 最新资讯列表 ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--space-sm);
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: var(--space-md);
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--clr-border-light);
            background: var(--clr-bg-card-hover);
            transform: translateX(4px);
        }

        .news-item-thumb {
            width: 120px;
            min-height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--clr-bg-alt);
        }

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

        .news-item-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item-content h3 a {
            color: var(--clr-text);
        }

        .news-item-content h3 a:hover {
            color: var(--clr-primary);
        }

        .news-item-content p {
            color: var(--clr-text-muted);
            font-size: 14px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: var(--space-sm);
            margin-top: var(--space-sm);
            font-size: 13px;
            color: var(--clr-text-dim);
        }

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

        .news-meta .category {
            background: rgba(245, 166, 35, 0.1);
            color: var(--clr-primary-light);
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 12px;
        }

        .news-empty {
            text-align: center;
            padding: var(--space-xl) var(--space-md);
            color: var(--clr-text-dim);
            font-size: 16px;
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--clr-border);
        }

        .news-empty i {
            font-size: 40px;
            color: var(--clr-border-light);
            margin-bottom: var(--space-sm);
            display: block;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }

        .stat-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }

        .stat-card:hover {
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-card-icon {
            font-size: 36px;
            color: var(--clr-primary);
            margin-bottom: var(--space-sm);
        }

        .stat-card-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--clr-text);
            letter-spacing: -1px;
        }

        .stat-card-number span {
            color: var(--clr-primary);
        }

        .stat-card-label {
            font-size: 15px;
            color: var(--clr-text-muted);
            margin-top: 4px;
        }

        /* ===== 流程指南 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: calc(12.5% + 20px);
            right: calc(12.5% + 20px);
            height: 2px;
            background: linear-gradient(90deg, var(--clr-primary), var(--clr-border), var(--clr-border), transparent);
            z-index: 0;
        }

        .step-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            border: 1px solid var(--clr-border);
            position: relative;
            z-index: 1;
            transition: var(--transition);
        }

        .step-card:hover {
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--clr-primary);
            color: #0b0e14;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-md);
            box-shadow: 0 4px 20px rgba(245, 166, 35, 0.3);
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: var(--space-sm);
        }

        .step-card p {
            color: var(--clr-text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-sm);
        }

        .faq-item {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }

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

        .faq-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-item h4 i {
            color: var(--clr-primary);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .faq-item p {
            color: var(--clr-text-muted);
            font-size: 14px;
            line-height: 1.7;
            padding-left: 28px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(245, 166, 35, 0.08) 0%, rgba(255, 107, 53, 0.05) 100%);
            border: 1px solid rgba(245, 166, 35, 0.12);
            border-radius: var(--radius-xl);
            padding: var(--space-xl) var(--space-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(245, 166, 35, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(28px, 3.5vw, 42px);
            font-weight: 800;
            margin-bottom: var(--space-sm);
        }

        .cta-section p {
            font-size: 18px;
            color: var(--clr-text-muted);
            max-width: 520px;
            margin: 0 auto var(--space-md);
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--space-sm);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border);
            padding: var(--space-xl) 0 var(--space-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: var(--space-sm);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand h3 i {
            color: var(--clr-primary);
        }

        .footer-brand p {
            color: var(--clr-text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: var(--space-md);
            color: var(--clr-text);
        }

        .footer-col a {
            display: block;
            color: var(--clr-text-muted);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--clr-border);
            padding-top: var(--space-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
            font-size: 14px;
            color: var(--clr-text-dim);
        }

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

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

        .footer-social {
            display: flex;
            gap: var(--space-sm);
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--clr-border);
            color: var(--clr-text-muted);
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: rgba(245, 166, 35, 0.12);
            border-color: var(--clr-primary);
            color: var(--clr-primary);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-search {
                display: none;
            }
            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero-stats {
                gap: var(--space-md);
                margin-top: var(--space-lg);
                padding-top: var(--space-md);
            }
            .hero-stat-number {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item-thumb {
                width: 100%;
                min-height: 160px;
            }
            .section {
                padding: var(--space-xl) 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: var(--space-lg) var(--space-md);
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .nav-wrap {
                padding: 6px 12px 6px 18px;
                border-radius: 40px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo i {
                font-size: 22px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .stat-card {
                padding: var(--space-md);
            }
            .stat-card-number {
                font-size: 28px;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .feature-card {
                padding: var(--space-md);
            }
            .game-card-body {
                padding: var(--space-sm);
            }
            .mobile-menu a {
                font-size: 18px;
                padding: 12px 20px;
            }
            .news-item {
                padding: var(--space-sm);
            }
            .news-item-thumb {
                min-height: 120px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-md {
            margin-top: var(--space-md);
        }
        .mt-lg {
            margin-top: var(--space-lg);
        }
        .mb-md {
            margin-bottom: var(--space-md);
        }
        .gap-sm {
            gap: var(--space-sm);
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--clr-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--clr-border-light);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--clr-text-dim);
        }

        /* 选中 */
        ::selection {
            background: rgba(245, 166, 35, 0.3);
            color: #fff;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --clr-primary: #f5a623;
            --clr-primary-dark: #d4891e;
            --clr-primary-light: #ffc64a;
            --clr-accent: #e85d2c;
            --clr-accent-dark: #c94d22;
            --clr-bg: #0d0f14;
            --clr-bg-alt: #15181f;
            --clr-bg-card: #1a1e28;
            --clr-bg-card-hover: #222736;
            --clr-surface: #1e232f;
            --clr-text: #edf0f5;
            --clr-text-secondary: #a8b0c4;
            --clr-text-muted: #6b728c;
            --clr-border: #2a3040;
            --clr-border-light: #3a4258;
            --clr-overlay: rgba(0, 0, 0, 0.65);
            --clr-glow: rgba(245, 166, 35, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 4px 30px var(--clr-glow);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 24px;
            --space-lg: 48px;
            --space-xl: 80px;
            --max-width: 1200px;
            --max-width-wide: 1400px;
        }

        /* ===== 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-main);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        ::selection {
            background: var(--clr-primary);
            color: #000;
        }

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

        /* ===== Header / Navigation (悬浮胶囊) ===== */
        .site-header {
            position: fixed;
            top: var(--space-sm);
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - var(--space-md) * 2);
            max-width: var(--max-width-wide);
            background: rgba(13, 15, 20, 0.75);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-radius: var(--radius-xl);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.04);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header:hover {
            background: rgba(13, 15, 20, 0.88);
            box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.06);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-sm) var(--space-md);
            gap: var(--space-sm);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--clr-text);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .nav-logo i {
            color: var(--clr-primary);
            font-size: 1.6rem;
            transition: transform var(--transition);
        }
        .nav-logo:hover i {
            transform: rotate(30deg) scale(1.1);
        }
        .nav-logo:hover {
            color: var(--clr-text);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            padding: 4px;
            border-radius: var(--radius-xl);
        }
        .nav-links a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--clr-text-secondary);
            transition: all var(--transition);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }
        .nav-links a i {
            font-size: 0.95rem;
            opacity: 0.7;
            transition: opacity var(--transition);
        }
        .nav-links a:hover {
            color: var(--clr-text);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a:hover i {
            opacity: 1;
        }
        .nav-links a.active {
            background: var(--clr-primary);
            color: #0d0f14;
            font-weight: 600;
            box-shadow: var(--shadow-glow);
        }
        .nav-links a.active i {
            opacity: 1;
            color: #0d0f14;
        }
        .nav-links a:focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-search {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-secondary);
            font-size: 1rem;
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-search:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--clr-text);
        }
        .nav-search:focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-secondary);
            font-size: 1.2rem;
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--clr-text);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 2px;
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 52vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            margin-top: 0;
            padding: 140px var(--space-md) 80px;
            isolation: isolate;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 15, 20, 0.85) 0%, rgba(13, 15, 20, 0.65) 50%, rgba(13, 15, 20, 0.4) 100%);
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(245, 166, 35, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            width: 100%;
        }
        .hero-content .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 166, 35, 0.15);
            border: 1px solid rgba(245, 166, 35, 0.25);
            color: var(--clr-primary-light);
            padding: 8px 22px;
            border-radius: var(--radius-xl);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            margin-bottom: var(--space-md);
            backdrop-filter: blur(8px);
        }
        .hero-content .hero-badge i {
            font-size: 0.9rem;
        }
        .hero-content h1 {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.1;
            margin-bottom: var(--space-sm);
            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;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--clr-text-secondary);
            max-width: 620px;
            margin: 0 auto var(--space-lg);
            line-height: 1.7;
        }
        .hero-search {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-xl);
            padding: 4px;
            backdrop-filter: blur(8px);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .hero-search:focus-within {
            border-color: var(--clr-primary);
            box-shadow: 0 0 0 4px var(--clr-glow);
        }
        .hero-search input {
            flex: 1;
            padding: 14px 20px;
            background: transparent;
            color: var(--clr-text);
            font-size: 1rem;
            border-radius: var(--radius-xl) 0 0 var(--radius-xl);
        }
        .hero-search input::placeholder {
            color: var(--clr-text-muted);
        }
        .hero-search button {
            padding: 14px 32px;
            background: var(--clr-primary);
            color: #0d0f14;
            font-weight: 600;
            border-radius: var(--radius-xl);
            transition: all var(--transition);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .hero-search button:hover {
            background: var(--clr-primary-light);
            transform: scale(1.02);
        }
        .hero-search button:active {
            transform: scale(0.97);
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-lg);
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: var(--space-sm);
        }
        .section-header h2 i {
            color: var(--clr-primary);
            margin-right: 10px;
        }
        .section-header p {
            color: var(--clr-text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .divider {
            width: 60px;
            height: 3px;
            background: var(--clr-primary);
            border-radius: 4px;
            margin: var(--space-sm) auto 0;
        }

        /* ===== Sub Tags / 分类标签 ===== */
        .sub-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--space-sm);
            margin-bottom: var(--space-lg);
        }
        .sub-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: var(--radius-xl);
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            color: var(--clr-text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .sub-tag i {
            font-size: 0.8rem;
            opacity: 0.6;
        }
        .sub-tag:hover {
            background: var(--clr-bg-card-hover);
            border-color: var(--clr-primary);
            color: var(--clr-primary-light);
            transform: translateY(-2px);
        }
        .sub-tag.active {
            background: var(--clr-primary);
            border-color: var(--clr-primary);
            color: #0d0f14;
        }
        .sub-tag.active i {
            opacity: 1;
            color: #0d0f14;
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: var(--space-md);
        }
        .card-grid--compact {
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        }

        .guide-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            background: var(--clr-bg-card-hover);
            border-color: var(--clr-border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg), 0 0 40px var(--clr-glow);
        }
        .guide-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: var(--clr-bg-alt);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .card-badge {
            position: absolute;
            top: var(--space-sm);
            left: var(--space-sm);
            background: var(--clr-primary);
            color: #0d0f14;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-xl);
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .guide-card .card-img .card-duration {
            position: absolute;
            bottom: var(--space-sm);
            right: var(--space-sm);
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            color: var(--clr-text);
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: var(--radius-xl);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card .card-body {
            padding: var(--space-md);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: var(--space-sm);
        }
        .guide-card .card-body .card-tags span {
            font-size: 0.7rem;
            padding: 2px 12px;
            border-radius: var(--radius-xl);
            background: rgba(245, 166, 35, 0.1);
            color: var(--clr-primary-light);
            border: 1px solid rgba(245, 166, 35, 0.15);
        }
        .guide-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .guide-card:hover .card-body h3 {
            color: var(--clr-primary-light);
        }
        .guide-card .card-body p {
            color: var(--clr-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: var(--space-sm);
            flex: 1;
        }
        .guide-card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: var(--space-sm);
            border-top: 1px solid var(--clr-border);
            font-size: 0.8rem;
            color: var(--clr-text-muted);
        }
        .guide-card .card-body .card-meta .author {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-body .card-meta .author i {
            font-size: 0.75rem;
        }
        .guide-card .card-body .card-meta .views i {
            margin-right: 4px;
        }

        /* ===== Rank List ===== */
        .rank-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-md);
        }
        .rank-list {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border);
            padding: var(--space-md);
        }
        .rank-list h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: var(--space-md);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rank-list h3 i {
            color: var(--clr-primary);
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            padding: var(--space-sm) 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            transition: background var(--transition);
            border-radius: var(--radius-sm);
            padding-left: 6px;
            padding-right: 6px;
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .rank-item .rank-num {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.85rem;
            background: rgba(255, 255, 255, 0.05);
            color: var(--clr-text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--clr-primary);
            color: #0d0f14;
        }
        .rank-item:nth-child(2) .rank-num {
            background: rgba(245, 166, 35, 0.6);
            color: #0d0f14;
        }
        .rank-item:nth-child(3) .rank-num {
            background: rgba(245, 166, 35, 0.35);
            color: #fff;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info .rank-title {
            font-weight: 500;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }
        .rank-item .rank-info .rank-sub {
            font-size: 0.78rem;
            color: var(--clr-text-muted);
        }
        .rank-item .rank-score {
            font-weight: 600;
            color: var(--clr-primary);
            font-size: 0.9rem;
        }

        /* ===== Featured / 攻略专题 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--space-md);
        }
        .featured-grid .featured-main {
            grid-row: 1 / 3;
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            position: relative;
        }
        .featured-grid .featured-main:hover {
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .featured-grid .featured-main .featured-img {
            height: 100%;
            min-height: 320px;
            background: url('/assets/images/coverpic/cover-2.png') center center / cover no-repeat;
            display: flex;
            align-items: flex-end;
            padding: var(--space-md);
        }
        .featured-grid .featured-main .featured-img .featured-overlay {
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(6px);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-md);
            width: 100%;
        }
        .featured-grid .featured-main .featured-img .featured-overlay h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .featured-grid .featured-main .featured-img .featured-overlay p {
            color: var(--clr-text-secondary);
            font-size: 0.95rem;
        }
        .featured-grid .featured-sub {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            position: relative;
            min-height: 180px;
            display: flex;
            align-items: flex-end;
        }
        .featured-grid .featured-sub:hover {
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .featured-grid .featured-sub .featured-img-sm {
            width: 100%;
            height: 100%;
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .featured-grid .featured-sub .featured-sub-overlay {
            position: relative;
            z-index: 2;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            padding: var(--space-sm) var(--space-md);
            width: 100%;
        }
        .featured-grid .featured-sub .featured-sub-overlay h4 {
            font-size: 1rem;
            font-weight: 600;
        }
        .featured-grid .featured-sub .featured-sub-overlay span {
            font-size: 0.8rem;
            color: var(--clr-text-muted);
        }

        /* ===== Author / Team ===== */
        .author-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: var(--space-md);
            text-align: center;
        }
        .author-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md) var(--space-sm);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
        }
        .author-card:hover {
            background: var(--clr-bg-card-hover);
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .author-card .author-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            margin: 0 auto var(--space-sm);
            background: var(--clr-surface);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--clr-primary);
            border: 2px solid var(--clr-border);
        }
        .author-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .author-card p {
            font-size: 0.82rem;
            color: var(--clr-text-muted);
            margin-bottom: var(--space-sm);
        }
        .author-card .author-count {
            font-size: 0.75rem;
            color: var(--clr-primary);
            font-weight: 500;
        }
        .author-card .author-count i {
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-md);
            padding: var(--space-md) var(--space-lg);
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--clr-border-light);
            background: var(--clr-bg-card-hover);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            color: var(--clr-text);
        }
        .faq-item .faq-q i {
            color: var(--clr-primary);
            font-size: 0.9rem;
            width: 20px;
            text-align: center;
        }
        .faq-item .faq-a {
            margin-top: var(--space-sm);
            padding-left: 32px;
            color: var(--clr-text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--clr-bg-alt) 0%, var(--clr-bg-card) 100%);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            padding: var(--space-xl) var(--space-md);
            text-align: center;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(245, 166, 35, 0.05) 0%, transparent 70%);
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            margin-bottom: var(--space-sm);
        }
        .cta-section p {
            color: var(--clr-text-secondary);
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto var(--space-md);
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--clr-primary);
            color: #0d0f14;
        }
        .btn-primary:hover {
            background: var(--clr-primary-light);
            color: #0d0f14;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--clr-text);
            border: 1px solid var(--clr-border);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--clr-text);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn:focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 4px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border);
            padding: var(--space-xl) 0 var(--space-md);
            margin-top: var(--space-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand h3 i {
            color: var(--clr-primary);
        }
        .footer-brand p {
            color: var(--clr-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: var(--space-md);
            color: var(--clr-text);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .footer-col a {
            display: block;
            color: var(--clr-text-secondary);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--clr-primary-light);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: var(--space-md);
            border-top: 1px solid var(--clr-border);
            color: var(--clr-text-muted);
            font-size: 0.82rem;
            flex-wrap: wrap;
            gap: var(--space-sm);
        }
        .footer-bottom a {
            color: var(--clr-text-secondary);
        }
        .footer-bottom a:hover {
            color: var(--clr-primary-light);
        }
        .footer-social {
            display: flex;
            gap: var(--space-sm);
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-secondary);
            font-size: 1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--clr-primary);
            color: #0d0f14;
            transform: scale(1.1);
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 900px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: var(--space-sm);
                right: var(--space-sm);
                background: rgba(13, 15, 20, 0.95);
                backdrop-filter: blur(20px);
                border-radius: var(--radius-md);
                border: 1px solid var(--clr-border);
                flex-direction: column;
                padding: var(--space-sm);
                gap: 4px;
                display: none;
                z-index: 999;
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                justify-content: center;
                padding: 14px 20px;
                border-radius: var(--radius-sm);
            }
            .nav-toggle {
                display: flex;
            }
            .nav-search {
                display: none;
            }
            .site-header {
                top: var(--space-xs);
                border-radius: var(--radius-lg);
                width: calc(100% - var(--space-sm) * 2);
            }
            .nav-wrap {
                padding: var(--space-sm);
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }

            .category-hero {
                min-height: 42vh;
                padding: 110px var(--space-sm) 60px;
            }
            .hero-content h1 {
                font-size: clamp(1.8rem, 5vw, 2.6rem);
            }
            .hero-content p {
                font-size: 0.95rem;
            }
            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-md);
                padding: 6px;
            }
            .hero-search input {
                border-radius: var(--radius-sm);
                padding: 12px 16px;
            }
            .hero-search button {
                border-radius: var(--radius-sm);
                padding: 12px 20px;
                justify-content: center;
            }

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

            .rank-wrap {
                grid-template-columns: 1fr;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .featured-grid .featured-main {
                grid-row: auto;
                min-height: 240px;
            }
            .featured-grid .featured-main .featured-img {
                min-height: 240px;
            }
            .featured-grid .featured-main .featured-img .featured-overlay h3 {
                font-size: 1.2rem;
            }
            .featured-grid .featured-sub {
                min-height: 140px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-md);
            }
            .footer-brand {
                grid-column: 1 / -1;
            }

            .cta-section {
                padding: var(--space-lg) var(--space-md);
            }
            .cta-section .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }

            .author-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }

            .faq-item {
                padding: var(--space-sm) var(--space-md);
            }
            .faq-item .faq-a {
                padding-left: 24px;
            }

            .section {
                padding: var(--space-lg) 0;
            }

            .sub-tags {
                gap: 8px;
            }
            .sub-tag {
                font-size: 0.78rem;
                padding: 6px 14px;
            }
        }

        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .author-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero {
                min-height: 36vh;
                padding: 100px var(--space-sm) 50px;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .nav-links a {
                font-size: 0.85rem;
                padding: 12px 16px;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .rank-item .rank-info .rank-title {
                font-size: 0.85rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-lg {
            margin-top: var(--space-lg);
        }
        .mb-lg {
            margin-bottom: var(--space-lg);
        }
        .gap-sm {
            gap: var(--space-sm);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --primary-dark: #070f18;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --accent-soft: #fef3d6;
            --bg: #f4f6f9;
            --bg-card: #ffffff;
            --bg-alt: #eef1f5;
            --text: #1a1a2e;
            --text-weak: #6c7a8d;
            --text-inverse: #f0f3f7;
            --border: #e0e4ea;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.14);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --nav-height: 72px;
            --max-width: 1200px;
            --max-width-wide: 1320px;
        }

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

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

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

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

        button,
        input,
        textarea {
            font-family: var(--font);
            font-size: 1rem;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

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

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 32px rgba(0, 0, 0, 0.3);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }

        .nav-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }

        .nav-logo:hover {
            color: #fff;
            opacity: 0.88;
        }

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

        .nav-links a {
            display: flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 100px;
            font-weight: 500;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .nav-links a i {
            font-size: 0.9rem;
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .nav-links a.active {
            background: var(--accent);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links a.active i {
            color: var(--primary);
        }

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

        .nav-search {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: background var(--transition), color var(--transition);
        }

        .nav-search:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.3rem;
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-area {
            background: var(--bg-alt);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-weak);
        }

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

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

        .breadcrumb span {
            color: var(--text);
            font-weight: 500;
        }

        .breadcrumb .sep {
            color: var(--border);
            font-size: 0.75rem;
        }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary);
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

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

        .article-banner .category-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 100px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .article-banner h1 {
            font-size: 2.6rem;
            color: #fff;
            max-width: 860px;
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            align-items: center;
        }

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

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

        /* ===== 文章正文 ===== */
        .article-content-area {
            padding: 60px 0 40px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            overflow: hidden;
        }

        .article-featured-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 32px;
            aspect-ratio: 16 / 8;
            object-fit: cover;
            width: 100%;
            background: var(--bg-alt);
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-body p {
            margin-bottom: 1.4em;
        }

        .article-body h2 {
            font-size: 1.5rem;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: var(--primary);
            border-left: 4px solid var(--accent);
            padding-left: 16px;
        }

        .article-body h3 {
            font-size: 1.2rem;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--primary-light);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.4em;
            padding-left: 1.6em;
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 0.4em;
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 0.4em;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-soft);
            padding: 20px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6em 0;
            font-style: italic;
            color: var(--primary-light);
        }

        .article-body a {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--accent);
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow);
        }

        /* ===== 文章标签 ===== */
        .article-tags {
            padding: 24px 0;
            border-top: 1px solid var(--border);
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }

        .article-tags .label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-weak);
        }

        .tag-item {
            display: inline-block;
            background: var(--bg-alt);
            color: var(--text-weak);
            padding: 4px 16px;
            border-radius: 100px;
            font-size: 0.82rem;
            font-weight: 500;
            transition: background var(--transition), color var(--transition);
        }

        .tag-item:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* ===== 上下篇导航 ===== */
        .post-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            padding: 24px 0;
            border-top: 1px solid var(--border);
            margin-top: 8px;
        }

        .post-nav a {
            display: flex;
            flex-direction: column;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            transition: background var(--transition), transform var(--transition);
        }

        .post-nav a:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
        }

        .post-nav .nav-label {
            font-size: 0.8rem;
            color: var(--text-weak);
            font-weight: 500;
            margin-bottom: 4px;
        }

        .post-nav .nav-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
        }

        .post-nav .nav-next {
            text-align: right;
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-widget {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
        }

        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
        }

        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-list li:last-child {
            border-bottom: none;
        }

        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.92rem;
            transition: color var(--transition);
        }

        .sidebar-list a:hover {
            color: var(--accent);
        }

        .sidebar-list a i {
            color: var(--accent);
            font-size: 0.8rem;
            margin-top: 4px;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            padding: 32px 24px;
            border-radius: var(--radius);
            text-align: center;
        }

        .sidebar-cta h4 {
            color: #fff;
            font-size: 1.15rem;
            margin-bottom: 12px;
        }

        .sidebar-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }

        .sidebar-cta .btn {
            background: var(--accent);
            color: var(--primary);
            border-radius: 100px;
            padding: 12px 32px;
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-block;
            transition: background var(--transition), transform var(--transition);
        }

        .sidebar-cta .btn:hover {
            background: #fff;
            transform: translateY(-2px);
            color: var(--primary);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-alt);
        }

        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section .section-title i {
            color: var(--accent);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .related-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

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

        .related-card:hover .card-img img {
            transform: scale(1.05);
        }

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

        .related-card .card-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-hover);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .related-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .related-card .card-title a {
            color: var(--primary);
        }

        .related-card .card-title a:hover {
            color: var(--accent);
        }

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

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-cta {
            background: var(--accent);
            color: var(--primary);
            padding: 14px 40px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 1rem;
            transition: background var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta:hover {
            background: #fff;
            transform: translateY(-3px);
            color: var(--primary);
        }

        .btn-cta-outline {
            background: transparent;
            color: #fff;
            padding: 14px 40px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            transform: translateY(-3px);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand h3 i {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 28px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: background var(--transition), color var(--transition);
        }

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

        /* ===== 内容未找到 ===== */
        .not-found-area {
            padding: 120px 0;
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 40px 0;
        }

        .not-found-area .nf-icon {
            font-size: 4rem;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .not-found-area h2 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .not-found-area p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .not-found-area .btn-home {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            padding: 12px 36px;
            border-radius: 100px;
            font-weight: 700;
            transition: background var(--transition), transform var(--transition);
        }

        .not-found-area .btn-home:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            color: var(--primary);
        }

        /* ===== 移动端菜单面板 ===== */
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-12px);
            transition: opacity 0.35s ease, transform 0.35s ease;
            pointer-events: none;
        }

        .mobile-menu-panel.open {
            display: flex;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mobile-menu-panel a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            transition: background var(--transition), color var(--transition);
        }

        .mobile-menu-panel a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .mobile-menu-panel a.active {
            background: var(--accent);
            color: var(--primary);
        }

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

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .article-banner h1 {
                font-size: 2.2rem;
            }
        }

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

            .nav-toggle {
                display: flex;
            }

            .article-banner {
                padding: 56px 0 40px;
            }

            .article-banner h1 {
                font-size: 1.7rem;
            }

            .article-main {
                padding: 24px 20px;
            }

            .article-body {
                font-size: 1rem;
            }

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

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

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

            .post-nav {
                grid-template-columns: 1fr;
            }

            .post-nav .nav-next {
                text-align: left;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.82rem;
            }

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

            .sidebar-widget {
                padding: 20px 16px;
            }
        }

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

            .article-banner h1 {
                font-size: 1.4rem;
            }

            .article-main {
                padding: 16px 14px;
            }

            .nav-logo {
                font-size: 1.1rem;
            }

            .nav-logo i {
                font-size: 1.2rem;
            }

            .article-body h2 {
                font-size: 1.25rem;
                padding-left: 12px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-cta,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 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;
        }