/* roulang page: index */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

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

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            position: relative;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.9rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-fast);
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--accent-alpha);
            color: var(--accent);
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            min-height: 78vh;
            display: flex;
            align-items: center;
            padding: var(--space-xl) 0 var(--space-lg);
            overflow: hidden;
            background: var(--bg-primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            border-radius: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 28, 30, 0.88) 0%, rgba(26, 28, 30, 0.55) 45%, rgba(26, 28, 30, 0.78) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            border: 1px solid var(--accent-alpha);
            background: rgba(61, 220, 132, 0.06);
            padding: 0.4rem 1.1rem;
            border-radius: 999px;
            margin-bottom: 1.5rem;
        }

        .hero-eyebrow i {
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: clamp(2.2rem, 5vw, 4.2rem);
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.12;
            margin-bottom: 1.25rem;
            color: var(--text-primary);
        }

        .hero-title .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 6px;
            background: var(--accent-alpha);
            border-radius: 3px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.08rem;
            font-weight: 400;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 2rem;
            max-width: 580px;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 1.9rem;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: center;
            justify-content: center;
        }

        .btn-primary {
            background: var(--accent);
            color: #1A1C1E;
            box-shadow: 0 4px 16px rgba(61, 220, 132, 0.28);
        }

        .btn-primary:hover {
            background: #50e598;
            color: #1A1C1E;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(61, 220, 132, 0.38);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(61, 220, 132, 0.2);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-alpha);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
            background: var(--accent-alpha-hover);
        }

        .hero-stats-inline {
            display: flex;
            gap: 2rem;
            margin-top: 2.5rem;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }

        .hero-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .hero-stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        .hero-scroll-hint {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 1.3rem;
            opacity: 0.7;
            animation: scrollPulse 2.2s ease-in-out infinite;
        }

        @keyframes scrollPulse {
            0%, 100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateX(-50%) translateY(6px);
                opacity: 0.3;
            }
        }

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

        .section-block-alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            margin-bottom: 2.8rem;
        }

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 0.7rem;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }

        /* ============ 数据速览条 ============ */
        .stats-bar {
            display: flex;
            justify-content: space-between;
            align-items: stretch;
            gap: 1.5rem;
            flex-wrap: wrap;
            padding: 1.8rem 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stat-item {
            flex: 1 1 180px;
            text-align: center;
            padding: 0.8rem 1rem;
            position: relative;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 15%;
            height: 70%;
            width: 1px;
            background: var(--border-color);
        }

        .stat-item .stat-value {
            font-size: 2.3rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .stat-item .stat-name {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
            letter-spacing: 0.04em;
        }

        /* ============ 卖点三连 ============ */
        .features-trio {
            display: flex;
            gap: 1.2rem;
            align-items: flex-start;
            flex-wrap: wrap;
        }

        .feature-block {
            flex: 1 1 280px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            transition: all var(--transition-medium);
            position: relative;
            overflow: hidden;
        }

        .feature-block:nth-child(2) {
            flex: 1.2 1 300px;
            transform: translateY(-12px);
            background: linear-gradient(160deg, rgba(61, 220, 132, 0.07) 0%, var(--bg-card) 55%);
            border-color: rgba(61, 220, 132, 0.2);
        }

        .feature-block:nth-child(3) {
            flex: 1 1 280px;
            transform: translateY(6px);
        }

        .feature-block:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .feature-block:nth-child(2):hover {
            background: linear-gradient(160deg, rgba(61, 220, 132, 0.12) 0%, var(--bg-card-hover) 55%);
            transform: translateY(-16px);
        }

        .feature-block:nth-child(3):hover {
            transform: translateY(2px);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            background: var(--accent-alpha);
            color: var(--accent);
            font-size: 1.3rem;
            margin-bottom: 1.1rem;
        }

        .feature-block h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .feature-block p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.68;
        }

        /* ============ 场景演示 ============ */
        .scene-grid {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }

        .scene-card {
            flex: 1 1 260px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-medium);
        }

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

        .scene-card .scene-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }

        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

        .scene-card .scene-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 50%, rgba(26, 28, 30, 0.7) 100%);
        }

        .scene-card .scene-body {
            padding: 1.2rem 1.4rem 1.5rem;
        }

        .scene-card .scene-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.45rem;
            color: var(--text-primary);
        }

        .scene-card .scene-body p {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ 品牌介绍 ============ */
        .brand-intro {
            display: flex;
            gap: 3.5rem;
            align-items: center;
            flex-wrap: wrap;
            padding: 2.5rem;
            background: linear-gradient(145deg, rgba(61, 220, 132, 0.05) 0%, var(--bg-card) 50%, var(--bg-secondary) 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
        }

        .brand-intro-text {
            flex: 1 1 480px;
        }

        .brand-intro-text h2 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .brand-intro-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0.8rem;
        }

        .brand-intro-badge {
            flex: 0 0 160px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.6rem;
            padding: 1.6rem 1rem;
            background: var(--accent-alpha);
            border: 1px solid var(--accent-alpha-hover);
            border-radius: var(--radius-lg);
            text-align: center;
        }

        .brand-intro-badge i {
            font-size: 2.2rem;
            color: var(--accent);
        }

        .brand-intro-badge span {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.04em;
        }

        /* ============ 社会认同 ============ */
        .quotes-grid {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .quote-card {
            flex: 1 1 300px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            transition: all var(--transition-medium);
        }

        .quote-card:nth-child(2) {
            transform: translateY(-8px);
            border-color: rgba(61, 220, 132, 0.15);
        }

        .quote-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
            background: var(--bg-card-hover);
        }

        .quote-card .quote-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 1.2rem;
            position: relative;
            padding-left: 1.2rem;
        }

        .quote-card .quote-text::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.2rem;
            width: 3px;
            height: 100%;
            background: var(--accent);
            border-radius: 2px;
        }

        .quote-card .quote-source {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        /* ============ 对比差异 ============ */
        .comparison-wrap {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .comparison-col {
            flex: 1 1 400px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            transition: all var(--transition-medium);
        }

        .comparison-col.highlight-col {
            border-color: rgba(61, 220, 132, 0.3);
            background: rgba(61, 220, 132, 0.04);
        }

        .comparison-col h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            color: var(--text-primary);
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            padding: 0.6rem 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
        }

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

        .comparison-list li i {
            color: var(--accent);
            font-size: 0.9rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-xmark {
            color: var(--text-faint);
        }

        /* ============ 资讯证据 ============ */
        .news-cards {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .news-card {
            flex: 1 1 240px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-medium);
            display: flex;
            flex-direction: column;
        }

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

        .news-card .news-img {
            height: 150px;
            overflow: hidden;
            position: relative;
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

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

        .news-card .news-body {
            padding: 1.2rem 1.3rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-body h3 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            line-height: 1.45;
        }

        .news-card .news-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 0.8rem;
        }

        .news-card .news-meta {
            font-size: 0.75rem;
            color: var(--text-faint);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .news-card .news-meta a {
            color: var(--accent);
            font-weight: 500;
            font-size: 0.8rem;
        }

        .news-card .news-meta a:hover {
            text-decoration: underline;
        }

        /* ============ 专题入口 ============ */
        .topics-horizontal {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .topic-tile {
            flex: 1 1 220px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            text-align: center;
            padding: 1.8rem 1.2rem;
            transition: all var(--transition-medium);
        }

        .topic-tile:hover {
            border-color: var(--accent);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }

        .topic-tile .topic-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 0.9rem;
        }

        .topic-tile h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }

        .topic-tile p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ============ 焦点主题 ============ */
        .focus-grid {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .focus-card {
            flex: 1 1 260px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.4rem;
            transition: all var(--transition-medium);
            border-left: 3px solid var(--accent);
        }

        .focus-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
            background: var(--bg-card-hover);
        }

        .focus-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .focus-card p {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ 资源下载墙 ============ */
        .resources-grid {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .resource-card {
            flex: 1 1 200px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            transition: all var(--transition-fast);
        }

        .resource-card:hover {
            border-color: var(--accent);
            background: var(--bg-card);
            transform: translateY(-2px);
        }

        .resource-card i {
            font-size: 1.4rem;
            color: var(--accent);
            flex-shrink: 0;
        }

        .resource-card .resource-info h4 {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.1rem;
        }

        .resource-card .resource-info span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ============ 内容日历 ============ */
        .calendar-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .calendar-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 1.1rem 1.6rem;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-fast);
        }

        .calendar-item:last-child {
            border-bottom: none;
        }

        .calendar-item:hover {
            background: var(--bg-card-hover);
        }

        .calendar-date {
            flex-shrink: 0;
            min-width: 60px;
            text-align: center;
            font-weight: 700;
            color: var(--accent);
            font-size: 0.9rem;
            letter-spacing: 0.05em;
        }

        .calendar-item .calendar-info h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.15rem;
        }

        .calendar-item .calendar-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ============ FAQ ============ */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

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

        .faq-item:hover {
            border-color: rgba(61, 220, 132, 0.18);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.5rem;
            background: none;
            border: none;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            text-align: left;
            transition: color var(--transition-fast);
            position: relative;
        }

        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 15%;
            height: 70%;
            width: 3px;
            background: var(--accent);
            border-radius: 2px;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .faq-item.active .faq-question::before {
            opacity: 1;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-toggle {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
        }

        .faq-item.active .faq-question .faq-toggle {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 1.5rem;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.3rem;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ 保障条 ============ */
        .guarantee-bar {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 1.8rem 2rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            flex: 1 1 160px;
        }

        .guarantee-item i {
            font-size: 1.2rem;
            color: var(--accent);
            flex-shrink: 0;
        }

        .guarantee-item span {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ 底部固定转化条 ============ */
        .bottom-fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(26, 28, 30, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-color);
            padding: 0.9rem 1.5rem;
            transform: translateY(100%);
            transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .bottom-fixed-cta.visible {
            transform: translateY(0);
        }

        .bottom-fixed-cta-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .bottom-fixed-cta .cta-text {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .bottom-fixed-cta .cta-text strong {
            color: var(--accent);
            font-weight: 700;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #151618;
            border-top: 1px solid var(--border-color);
            padding: var(--space-lg) 0 1.5rem;
            margin-top: var(--space-xl);
        }

        .footer-grid {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
            margin-bottom: 2.5rem;
        }

        .footer-brand {
            flex: 1 1 260px;
        }

        .footer-brand h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-col {
            flex: 1 1 160px;
        }

        .footer-col h3 {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

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

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            align-items: flex-start;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-faint);
            margin: 0;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .masthead-brand a {
                font-size: 1.6rem;
            }
            .masthead-nav ul li {
                padding: 0 0.6rem;
            }
            .masthead-nav ul li a {
                font-size: 0.82rem;
            }
            .section-block {
                padding: var(--space-lg) 0;
            }
            .hero-section {
                min-height: 68vh;
                padding: var(--space-lg) 0;
            }
            .feature-block:nth-child(2),
            .feature-block:nth-child(3) {
                transform: translateY(0);
            }
            .feature-block:nth-child(2):hover {
                transform: translateY(-4px);
            }
            .feature-block:nth-child(3):hover {
                transform: translateY(-4px);
            }
            .brand-intro {
                padding: 1.8rem;
                gap: 2rem;
            }
            .brand-intro-badge {
                flex: 0 0 120px;
            }
        }

        @media (max-width: 768px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .masthead {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .masthead-brand a {
                font-size: 1.5rem;
            }
            .masthead-brand .brand-tag {
                display: none;
            }
            .hamburger-toggle {
                display: block;
            }
            .masthead-nav {
                display: none;
                width: 100%;
                order: 10;
            }
            .masthead-nav.open {
                display: block;
            }
            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid var(--border-color);
                margin-top: 0.5rem;
            }
            .masthead-nav ul li {
                padding: 0.5rem 0;
            }
            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }
            .masthead-nav ul li {
                border-bottom: 1px solid var(--border-color);
            }
            .masthead-nav ul li:last-child {
                border-bottom: none;
            }
            .masthead-nav ul li a {
                display: block;
                font-size: 0.95rem;
                padding: 0.4rem 0;
            }
            .masthead-nav ul li a::after {
                display: none;
            }
            .hero-section {
                min-height: 60vh;
                padding: var(--space-md) 0;
            }
            .hero-title {
                font-size: clamp(1.8rem, 7vw, 2.6rem);
            }
            .hero-subtitle {
                font-size: 0.92rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats-inline {
                gap: 1.2rem;
            }
            .hero-stat-item .stat-num {
                font-size: 1.3rem;
            }
            .stat-item .stat-value {
                font-size: 1.8rem;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .brand-intro {
                flex-direction: column;
                padding: 1.5rem;
            }
            .brand-intro-badge {
                flex: 0 0 auto;
                width: 100%;
                flex-direction: row;
                justify-content: center;
                gap: 1rem;
                padding: 1rem;
            }
            .quote-card:nth-child(2) {
                transform: translateY(0);
            }
            .comparison-wrap {
                gap: 1rem;
            }
            .comparison-col {
                padding: 1.5rem 1.2rem;
            }
            .bottom-fixed-cta {
                padding: 0.7rem 1rem;
            }
            .bottom-fixed-cta-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .guarantee-bar {
                padding: 1.4rem 1.2rem;
                gap: 1rem;
            }
            .footer-grid {
                gap: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: auto;
                padding: var(--space-lg) 0 var(--space-md);
            }
            .hero-eyebrow {
                font-size: 0.72rem;
                padding: 0.3rem 0.8rem;
                margin-bottom: 1rem;
            }
            .hero-title {
                font-size: 1.7rem;
                line-height: 1.2;
            }
            .hero-subtitle {
                font-size: 0.86rem;
                margin-bottom: 1.2rem;
            }
            .hero-stats-inline {
                gap: 0.8rem;
                flex-wrap: wrap;
            }
            .section-block {
                padding: var(--space-md) 0;
            }
            .section-header {
                margin-bottom: 1.5rem;
            }
            .stats-bar {
                gap: 0.8rem;
                padding: 1.2rem 0;
            }
            .stat-item {
                flex: 1 1 120px;
            }
            .stat-item .stat-value {
                font-size: 1.5rem;
            }
            .features-trio {
                gap: 0.8rem;
            }
            .feature-block {
                padding: 1.4rem 1.2rem;
            }
            .scene-card .scene-img {
                height: 130px;
            }
            .news-card .news-img {
                height: 120px;
            }
            .calendar-item {
                padding: 0.9rem 1.2rem;
                gap: 0.8rem;
                flex-wrap: wrap;
            }
            .calendar-date {
                min-width: 48px;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 0.9rem 1.1rem;
            }
            .faq-answer {
                padding: 0 1.1rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 1.1rem 1rem;
            }
            .bottom-fixed-cta .cta-text {
                font-size: 0.8rem;
            }
            .bottom-fixed-cta .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.82rem;
            }
            .guarantee-item span {
                font-size: 0.78rem;
            }
            .footer-brand h2 {
                font-size: 1.3rem;
            }
            .hero-scroll-hint {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 1rem;
            flex-wrap: wrap;
            padding-top: 0.5rem;
            padding-bottom: 0.5rem;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.9rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--bg-card);
            color: var(--accent);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            padding: 1.5rem 0 0;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

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

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

        .breadcrumb-bar .separator {
            margin: 0 0.5rem;
            color: var(--text-faint);
        }

        .breadcrumb-bar .current {
            color: var(--accent);
            font-weight: 500;
        }

        /* ============ 分类标题区 ============ */
        .category-hero {
            padding: 2.5rem 0 2rem;
            border-bottom: 1px solid var(--border-color);
            background: radial-gradient(ellipse at top left, rgba(61, 220, 132, 0.08), transparent 55%), var(--bg-primary);
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0 0 1rem;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .category-hero .h1-accent {
            color: var(--accent);
        }

        .category-hero .lead {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 0 1.25rem;
            line-height: 1.8;
        }

        .category-hero .meta-line {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .category-hero .meta-line span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .category-hero .meta-line i {
            color: var(--accent);
        }

        /* ============ 数据速览条 ============ */
        .stats-strip {
            padding: 2rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: left;
            padding: 1rem 1.25rem;
            border-left: 2px solid var(--accent);
            background: var(--bg-secondary);
            border-radius: var(--radius-sm);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
            letter-spacing: 0.02em;
        }

        /* ============ 分类介绍板块 ============ */
        .category-intro {
            padding: 3rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .intro-layout {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 2.5rem;
            align-items: start;
        }

        .intro-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
            letter-spacing: -0.01em;
        }

        .intro-title .accent-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            margin-right: 0.5rem;
            vertical-align: middle;
        }

        .intro-text {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.85;
        }

        .intro-text p {
            margin: 0 0 1rem;
        }

        .intro-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1rem;
        }

        .intro-tags .mini-tag {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--text-muted);
            background: var(--bg-card);
            transition: all var(--transition-fast);
        }

        .intro-tags .mini-tag:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        /* ============ 列表/卡片主体 ============ */
        .article-list-section {
            padding: 3rem 0;
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .section-heading h2 {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0;
            position: relative;
            padding-left: 1rem;
        }

        .section-heading h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 1.4rem;
            background: var(--accent);
            border-radius: 4px;
        }

        .section-heading .view-more {
            font-size: 0.85rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            padding: 0.4rem 1rem;
            border-radius: 20px;
            transition: all var(--transition-fast);
        }

        .section-heading .view-more:hover {
            color: var(--accent);
            border-color: var(--border-hover);
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }

        .article-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-medium);
        }

        .article-card:hover .article-card-img img {
            transform: scale(1.04);
        }

        .article-card-img .badge {
            position: absolute;
            top: 0.8rem;
            left: 0.8rem;
            background: rgba(26, 28, 30, 0.85);
            backdrop-filter: blur(6px);
            padding: 0.25rem 0.7rem;
            border-radius: 4px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            border: 1px solid var(--border-color);
        }

        .article-card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.6rem;
            line-height: 1.4;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .article-card-body h3 a:hover {
            color: var(--accent);
        }

        .article-card-body .excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0 0 1rem;
            line-height: 1.7;
            flex: 1;
        }

        .article-card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-faint);
            border-top: 1px solid var(--border-color);
            padding-top: 0.75rem;
        }

        .article-card-body .read-link {
            color: var(--accent);
            font-weight: 500;
            font-size: 0.82rem;
        }

        .article-card-body .read-link i {
            margin-left: 0.25rem;
            transition: transform var(--transition-fast);
        }

        .article-card-body .read-link:hover i {
            transform: translateX(4px);
        }

        /* ============ 热榜/精选板块 ============ */
        .hot-list-section {
            padding: 3rem 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .hot-list-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }

        .hot-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
            position: relative;
        }

        .hot-item:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .hot-rank {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -0.02em;
        }

        .hot-item h3 {
            font-size: 0.92rem;
            font-weight: 600;
            margin: 0;
            line-height: 1.45;
            color: var(--text-primary);
        }

        .hot-item .hot-meta {
            font-size: 0.75rem;
            color: var(--text-faint);
        }

        /* ============ 订阅/更新提醒板块 ============ */
        .subscribe-section {
            padding: 3.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .subscribe-box {
            background: linear-gradient(135deg, rgba(61, 220, 132, 0.06), rgba(26, 28, 30, 0.9)), var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 2rem;
            align-items: center;
        }

        .subscribe-box h2 {
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 0.6rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .subscribe-box p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 0.6rem;
            align-items: center;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            background: rgba(26, 28, 30, 0.85);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1rem;
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: border-color var(--transition-fast);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-faint);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            outline: none;
        }

        .subscribe-form button {
            background: var(--accent);
            color: #1A1C1E;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.4rem;
            font-weight: 700;
            font-size: 0.88rem;
            cursor: pointer;
            white-space: nowrap;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .subscribe-form button:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
        }

        .subscribe-form button:active {
            transform: translateY(0);
        }

        /* ============ 相关专题/标签云板块 ============ */
        .tag-cloud-section {
            padding: 3rem 0 4rem;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .tag-link {
            display: inline-block;
            padding: 0.5rem 1.2rem;
            border: 1px solid var(--border-color);
            border-radius: 24px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            background: var(--bg-card);
            transition: all var(--transition-fast);
        }

        .tag-link:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        .tag-link .tag-count {
            font-size: 0.72rem;
            color: var(--text-faint);
            margin-left: 0.4rem;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #151719;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin: 0 0 0.6rem;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h3 {
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--text-faint);
            margin: 0 0 0.8rem;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            font-size: 0.78rem;
            color: var(--text-faint);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-faint);
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .hot-list-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .intro-layout {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .subscribe-box {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .masthead-brand a {
                font-size: 1.7rem;
            }

            .masthead-nav ul li {
                padding: 0 0.6rem;
            }

            .masthead-nav ul li a {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .masthead-inner {
                flex-wrap: nowrap;
                min-height: 60px;
            }

            .hamburger-toggle {
                display: block;
                flex-shrink: 0;
            }

            .masthead-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(26, 28, 30, 0.98);
                border-bottom: 1px solid var(--border-color);
                padding: 0.5rem 0;
                flex-direction: column;
            }

            .masthead-nav.open {
                display: flex;
                flex-direction: column;
                align-items: stretch;
            }

            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
            }

            .masthead-nav ul li {
                padding: 0;
                width: 100%;
            }

            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }

            .masthead-nav ul li a {
                display: block;
                padding: 0.85rem 1.5rem;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-color);
                width: 100%;
            }

            .masthead-nav ul li a::after {
                display: none;
            }

            .masthead-nav ul li a.active {
                background: var(--accent-alpha);
                border-left: 3px solid var(--accent);
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .hot-list-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .stat-number {
                font-size: 1.6rem;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .subscribe-form {
                flex-direction: column;
                gap: 0.8rem;
            }

            .subscribe-form input[type="email"] {
                width: 100%;
            }

            .subscribe-form button {
                width: 100%;
            }

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

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .masthead-brand a {
                font-size: 1.5rem;
            }

            .masthead-brand .brand-tag {
                display: none;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .hot-list-grid {
                grid-template-columns: 1fr;
                gap: 0.7rem;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }

            .article-card-body {
                padding: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: auto;
            }

            .tag-link {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.85rem;
            padding-bottom: 0.85rem;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.85rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--bg-card);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            padding: 1.5rem 0 0.5rem;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: '/';
            color: var(--text-faint);
            font-size: 0.75rem;
        }

        .breadcrumb-list a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-list .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ 分类页头部 ============ */
        .category-header {
            padding: 1rem 0 2rem;
            border-bottom: 1px solid var(--border-color);
        }

        .category-header .category-badge {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: var(--accent-alpha);
            padding: 0.3rem 0.8rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
        }

        .category-header h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin: 0 0 0.75rem;
            color: var(--text-primary);
        }

        .category-header .category-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
            margin: 0;
        }

        /* ============ 数据速览条 ============ */
        .stats-strip {
            padding: 2.5rem 0;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
        }

        .stats-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: left;
            padding: 0 1.25rem;
            border-left: 2px solid var(--border-color);
        }

        .stat-item:first-child {
            border-left: none;
            padding-left: 0;
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--accent);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 0.35rem;
        }

        /* ============ 板块通用 ============ */
        .section-block {
            padding: 4rem 0;
        }

        .section-block.alt-bg {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0;
        }

        .section-heading .section-link {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .section-heading .section-link:hover {
            color: var(--accent);
        }

        /* ============ 卡片网格 ============ */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            display: flex;
            flex-direction: column;
        }

        .data-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .data-card .card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .data-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
            border-radius: 0;
        }

        .data-card:hover .card-image img {
            transform: scale(1.04);
        }

        .data-card .card-image .image-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--bg-primary);
            background: var(--accent);
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .data-card .card-body {
            padding: 1.35rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .data-card .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .data-card .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0 0 0.5rem;
        }

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

        .data-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 1rem;
            flex: 1;
        }

        .data-card .card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .data-card .card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

        .data-card .card-link:hover i {
            transform: translateX(3px);
        }

        /* ============ 不对称列表主体 ============ */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .article-list-item {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 1.5rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
        }

        .article-list-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .article-list-item .list-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            border-radius: var(--radius-md) 0 0 var(--radius-md);
        }

        .article-list-item .list-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-medium);
        }

        .article-list-item:hover .list-image img {
            transform: scale(1.03);
        }

        .article-list-item .list-body {
            padding: 1.25rem 1.5rem 1.25rem 0;
            display: flex;
            flex-direction: column;
        }

        .article-list-item .list-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0.4rem;
        }

        .article-list-item .list-title {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0 0 0.4rem;
        }

        .article-list-item .list-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ============ 热榜板块 ============ */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            counter-reset: rank-counter;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.9rem 1.25rem;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            counter-increment: rank-counter;
        }

        .rank-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .rank-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            width: 3rem;
            text-align: center;
            font-variant-numeric: tabular-nums;
            flex-shrink: 0;
        }

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

        .rank-info .rank-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 0.15rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-info .rank-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .rank-trend {
            font-size: 0.85rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .rank-trend.up {
            color: var(--accent);
        }

        .rank-trend.down {
            color: #E05D5D;
        }

        /* ============ 标签云 ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .tag-cloud a {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 0.45rem 1rem;
            border-radius: 999px;
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
        }

        .tag-cloud a:hover {
            color: var(--accent);
            border-color: var(--border-hover);
            background: var(--accent-alpha);
        }

        /* ============ FAQ ============ */
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.15rem 1.5rem;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition-medium);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ============ 订阅表单 ============ */
        .subscribe-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            text-align: center;
        }

        .subscribe-box h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 0.6rem;
            color: var(--text-primary);
        }

        .subscribe-box p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0 0 1.5rem;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 0.75rem;
            max-width: 480px;
            margin: 0 auto;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.92rem;
            transition: border-color var(--transition-fast);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px var(--accent-alpha);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-faint);
        }

        .btn-subscribe {
            background: var(--accent);
            border: none;
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 0.92rem;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn-subscribe:hover {
            background: var(--accent-soft);
            transform: translateY(-1px);
        }

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

        /* ============ 参考数据模块 ============ */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .metric-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem 1rem;
            text-align: center;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .metric-box:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .metric-box .metric-icon {
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 0.6rem;
        }

        .metric-box .metric-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }

        .metric-box .metric-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #151719;
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin: 0 0 0.6rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 340px;
        }

        .footer-col h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 0.82rem;
            color: var(--text-faint);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links {
            display: flex;
            gap: 1.25rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.82rem;
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .stats-strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }

            .stat-item:nth-child(3) {
                border-left: none;
                padding-left: 0;
            }

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

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

            .article-list-item {
                grid-template-columns: 180px 1fr;
            }
        }

        @media (max-width: 768px) {
            .masthead-inner {
                flex-direction: column;
                align-items: stretch;
            }

            .masthead-brand {
                justify-content: space-between;
                align-items: center;
                width: 100%;
            }

            .hamburger-toggle {
                display: block;
            }

            .masthead-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
            }

            .masthead-nav.open {
                display: flex;
            }

            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }

            .masthead-nav ul li {
                padding: 0.35rem 0;
                border-bottom: 1px solid var(--border-color);
            }

            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }

            .masthead-nav ul li a {
                display: block;
                padding: 0.4rem 0;
                font-size: 1rem;
            }

            .masthead-nav ul li a::after {
                display: none;
            }

            .stats-strip-grid {
                grid-template-columns: 1fr 1fr;
            }

            .stat-item {
                padding: 0 0.75rem;
            }

            .stat-item:nth-child(odd) {
                border-left: none;
                padding-left: 0;
            }

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

            .article-list-item {
                grid-template-columns: 1fr;
            }

            .article-list-item .list-image {
                aspect-ratio: 16/9;
                border-radius: var(--radius-md) var(--radius-md) 0 0;
            }

            .article-list-item .list-body {
                padding: 1rem 1.25rem 1.25rem;
            }

            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input[type="email"] {
                width: 100%;
            }

            .btn-subscribe {
                width: 100%;
            }

            .subscribe-box {
                padding: 1.5rem;
            }

            .section-block {
                padding: 2.5rem 0;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }

            .footer-links {
                gap: 0.75rem;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .masthead-brand a {
                font-size: 1.6rem;
            }

            .masthead-brand .brand-tag {
                font-size: 0.65rem;
            }

            .stats-strip-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .stat-item {
                border-left: none;
                padding-left: 0;
                border-left: 2px solid var(--border-color);
                padding-left: 1rem;
            }

            .stat-item:first-child {
                border-left: none;
                padding-left: 0;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

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

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

            .rank-number {
                font-size: 1.2rem;
                width: 2.2rem;
            }

            .rank-item {
                padding: 0.7rem 0.9rem;
                gap: 0.6rem;
            }
        }

/* 底部固定转化条样式 */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(26, 28, 30, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-color);
            padding: 0.7rem 0;
            transform: translateY(100%);
            transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
        }

        .bottom-fixed-bar.visible {
            transform: translateY(0);
        }

        .fixed-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .fixed-bar-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            flex: 1;
            min-width: 200px;
        }

        .fixed-bar-btn {
            display: inline-block;
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--bg-primary);
            background: var(--accent);
            padding: 0.6rem 1.4rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .fixed-bar-btn:hover {
            background: var(--accent-soft);
            transform: translateY(-1px);
            color: var(--bg-primary);
        }

        @media (max-width: 768px) {
            .bottom-fixed-bar {
                padding: 0.5rem 0;
            }

            .fixed-bar-inner {
                flex-direction: column;
                gap: 0.5rem;
                align-items: stretch;
                text-align: center;
            }

            .fixed-bar-text {
                font-size: 0.82rem;
                min-width: auto;
            }

            .fixed-bar-btn {
                text-align: center;
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-medium);
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.9rem;
            padding-bottom: 0.9rem;
            gap: 1.5rem;
        }

        .masthead-left {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-shrink: 0;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
            flex: 1;
            justify-content: flex-end;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.8rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.45rem 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--bg-card);
        }

        /* ============ 页面标题区 ============ */
        .page-head-section {
            padding: var(--space-lg) 0 var(--space-md);
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

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

        .breadcrumb-current {
            color: var(--accent);
            font-weight: 500;
        }

        .page-head-title {
            margin: 0 0 0.85rem;
            font-size: clamp(2rem, 4.5vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--text-primary);
        }

        .page-head-sub {
            font-size: 1.05rem;
            font-weight: 400;
            color: var(--text-secondary);
            margin: 0;
            max-width: 720px;
            line-height: 1.75;
        }

        /* ============ 统计条 ============ */
        .stats-ribbon {
            padding: var(--space-md) 0;
            background: transparent;
            border-bottom: 1px solid var(--border-color);
        }

        .stats-inner {
            display: flex;
            align-items: stretch;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .stat-item {
            flex: 1;
            min-width: 140px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 0.75rem 1.25rem;
            border-left: 2px solid var(--border-color);
        }

        .stat-item:first-child {
            border-left: none;
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--accent);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* ============ 选手列表主体 ============ */
        .player-list-section {
            padding: var(--space-lg) 0;
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: var(--space-md);
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0;
        }

        .section-note {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
        }

        .player-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .player-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

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

        .player-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .player-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

        .player-card:hover .player-card-img img {
            transform: scale(1.04);
        }

        .player-card-body {
            padding: 1.25rem 1.25rem 1.4rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .player-card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: var(--accent-alpha);
            border-radius: 999px;
            padding: 0.2rem 0.7rem;
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }

        .player-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.6rem;
            line-height: 1.35;
        }

        .player-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 1rem;
            line-height: 1.65;
            flex: 1;
        }

        .player-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 0.85rem;
            margin-top: 0.5rem;
        }

        .player-card-link {
            font-weight: 600;
            color: var(--accent);
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: gap var(--transition-fast);
        }

        .player-card-link:hover {
            color: var(--accent-soft);
            gap: 0.55rem;
        }

        /* ============ 热榜板块 ============ */
        .hot-rank-section {
            padding: var(--space-lg) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1rem 1.25rem;
            transition: border-color var(--transition-fast), transform var(--transition-medium), box-shadow var(--transition-medium);
        }

        .rank-item:hover {
            border-color: var(--border-hover);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }

        .rank-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            min-width: 3rem;
            text-align: center;
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }

        .rank-info {
            flex: 1;
        }

        .rank-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin: 0 0 0.2rem;
        }

        .rank-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .rank-badge {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-soft);
            background: var(--accent-alpha);
            border-radius: 999px;
            padding: 0.2rem 0.7rem;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ============ 标签云 ============ */
        .tag-cloud-section {
            padding: var(--space-lg) 0;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .tag-link {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 0.45rem 1.1rem;
            transition: all var(--transition-fast);
        }

        .tag-link:hover {
            color: var(--accent);
            border-color: var(--border-hover);
            background: var(--accent-alpha);
        }

        /* ============ 订阅区 ============ */
        .subscribe-zone {
            padding: var(--space-lg) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .subscribe-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            flex-wrap: wrap;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 2.25rem;
        }

        .subscribe-info {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }

        .subscribe-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 0.6rem;
            flex-shrink: 0;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-input {
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.1rem;
            color: var(--text-primary);
            font-size: 0.92rem;
            min-width: 240px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .subscribe-input::placeholder {
            color: var(--text-faint);
        }

        .subscribe-input:focus {
            border-color: var(--border-hover);
            outline: none;
            box-shadow: 0 0 0 3px var(--accent-alpha);
        }

        .btn-primary {
            background: var(--accent);
            color: #1A1C1E;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.5rem;
            font-weight: 700;
            font-size: 0.92rem;
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(61, 220, 132, 0.25);
            color: #1A1C1E;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #141618;
            border-top: 1px solid var(--border-color);
            padding: var(--space-lg) 0 var(--space-md);
            margin-top: var(--space-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand h2 {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h3 {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--text-secondary);
            margin: 0 0 0.9rem;
            text-transform: uppercase;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            font-size: 0.78rem;
            color: var(--text-faint);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-faint);
            font-size: 0.78rem;
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .player-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 1.5rem;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .masthead-bar {
                flex-wrap: wrap;
                gap: 0.75rem;
            }

            .masthead-left {
                flex: 1;
                justify-content: space-between;
            }

            .hamburger-toggle {
                display: inline-block;
            }

            .masthead-nav {
                display: none;
                flex-basis: 100%;
                flex-direction: column;
                align-items: stretch;
                border-top: 1px solid var(--border-color);
                padding-top: 0.75rem;
                padding-bottom: 0.75rem;
            }

            .masthead-nav.open {
                display: flex;
            }

            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
            }

            .masthead-nav ul li {
                padding: 0.35rem 0;
            }

            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }

            .masthead-nav ul li:not(:last-child) {
                border-bottom: 1px solid var(--border-color);
            }

            .masthead-nav ul li a {
                display: block;
                padding: 0.5rem 0;
                font-size: 0.95rem;
            }

            .page-head-title {
                font-size: 1.85rem;
            }

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

            .rank-item {
                flex-wrap: wrap;
                gap: 0.75rem;
            }

            .rank-number {
                min-width: 2.5rem;
                font-size: 1.5rem;
            }

            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 1.5rem;
            }

            .subscribe-form {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-input {
                min-width: 0;
                width: 100%;
            }

            .btn-primary {
                width: 100%;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

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

            .stats-inner {
                flex-direction: column;
                gap: 0.5rem;
            }

            .stat-item {
                border-left: none;
                border-bottom: 1px solid var(--border-color);
                padding: 0.5rem 0;
            }

            .stat-item:last-child {
                border-bottom: none;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .masthead-brand a {
                font-size: 1.5rem;
            }

            .masthead-brand .brand-tag {
                font-size: 0.62rem;
            }

            .page-head-section {
                padding: 2.5rem 0 1.5rem;
            }

            .page-head-title {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.25rem;
            }

            .rank-item {
                padding: 0.85rem 1rem;
            }

            .rank-badge {
                font-size: 0.7rem;
            }

            .tag-link {
                font-size: 0.78rem;
                padding: 0.35rem 0.9rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.9rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-fast);
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--bg-card);
            color: var(--accent);
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            padding: 1.2rem 0 0;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-bar .separator {
            margin: 0 0.5rem;
            color: var(--text-faint);
        }

        .breadcrumb-bar .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ 分类页头部 ============ */
        .category-hero {
            padding: 2.5rem 0 2rem;
            border-bottom: 1px solid var(--border-color);
            background: linear-gradient(180deg, rgba(33, 35, 38, 0.6) 0%, transparent 100%);
        }

        .category-hero-grid {
            display: flex;
            align-items: flex-start;
            gap: 3rem;
            flex-wrap: wrap;
        }

        .category-hero-content {
            flex: 1 1 60%;
            min-width: 280px;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin: 0 0 1rem;
            color: var(--text-primary);
        }

        .category-hero-desc {
            font-size: 1.06rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 680px;
        }

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--accent-alpha);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            padding: 0.4rem 0.9rem;
            border-radius: 100px;
            margin-bottom: 1rem;
            border: 1px solid rgba(61, 220, 132, 0.18);
        }

        .category-hero-badge i {
            font-size: 0.8rem;
        }

        .category-hero-stats {
            flex: 1 1 30%;
            min-width: 240px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            align-self: center;
        }

        .mini-stat {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.1rem 1.25rem;
            text-align: left;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .mini-stat:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .mini-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .mini-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            margin-top: 0.3rem;
        }

        /* ============ 攻略列表主体 ============ */
        .guide-section {
            padding: 3.5rem 0 2.5rem;
        }

        .section-heading-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.75rem;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .section-heading-row h2 {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }

        .section-heading-row h2::before {
            content: '';
            width: 4px;
            height: 1.6rem;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .view-all-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .view-all-link i {
            margin-left: 0.3rem;
            font-size: 0.8rem;
        }

        .view-all-link:hover {
            color: var(--accent);
        }

        .guide-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 1.5rem;
        }

        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .guide-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-secondary);
        }

        .guide-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

        .guide-card:hover .card-image img {
            transform: scale(1.04);
        }

        .guide-card .card-image .play-indicator {
            position: absolute;
            bottom: 0.75rem;
            left: 0.75rem;
            background: rgba(26, 28, 30, 0.82);
            color: var(--accent);
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            padding: 0.3rem 0.7rem;
            border-radius: 100px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .guide-card .card-body {
            padding: 1.2rem 1.4rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card .card-category {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 0.5rem;
        }

        .guide-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 0.6rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .guide-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 1rem;
            flex: 1;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-faint);
            padding-top: 0.9rem;
            border-top: 1px solid var(--border-color);
        }

        .guide-card .card-meta .read-link {
            font-weight: 600;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .guide-card .card-meta .read-link:hover {
            color: var(--accent);
        }

        .guide-card .card-meta .read-link i {
            margin-left: 0.35rem;
            font-size: 0.7rem;
        }

        .guide-card.span-7 {
            grid-column: span 7;
        }

        .guide-card.span-5 {
            grid-column: span 5;
        }

        .guide-card.span-4 {
            grid-column: span 4;
        }

        .guide-card.span-12 {
            grid-column: span 12;
        }

        .guide-card.span-12 .card-body {
            flex-direction: row;
            align-items: center;
            gap: 1.5rem;
        }

        .guide-card.span-12 .card-image {
            flex: 0 0 280px;
            aspect-ratio: 16 / 9;
        }

        .guide-card.span-12 .card-content {
            flex: 1;
        }

        /* ============ 热榜精选 ============ */
        .hot-rank-section {
            padding: 2.5rem 0 3.5rem;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .hot-rank-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.25rem;
        }

        .rank-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.2rem;
            display: flex;
            align-items: flex-start;
            gap: 0.9rem;
            transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
        }

        .rank-card:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }

        .rank-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -0.04em;
            flex-shrink: 0;
            min-width: 42px;
        }

        .rank-content h4 {
            font-size: 0.96rem;
            font-weight: 600;
            line-height: 1.45;
            margin: 0 0 0.3rem;
            color: var(--text-primary);
        }

        .rank-content .rank-views {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .rank-content .rank-views i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        /* ============ 版本解读专题 ============ */
        .patch-spotlight {
            padding: 3.5rem 0;
            position: relative;
            overflow: hidden;
        }

        .patch-spotlight-bg {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 45%;
            background-image: url('/assets/images/7fbde402c6f66726.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }

        .patch-spotlight .patch-content {
            position: relative;
            z-index: 1;
            max-width: 620px;
        }

        .patch-spotlight h2 {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0 0 1rem;
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }

        .patch-spotlight h2::before {
            content: '';
            width: 4px;
            height: 1.6rem;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .patch-spotlight p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 1.5rem;
        }

        .patch-highlight-list {
            list-style: none;
            margin: 0 0 1.5rem;
            padding: 0;
        }

        .patch-highlight-list li {
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.7rem;
            font-size: 0.94rem;
            color: var(--text-secondary);
        }

        .patch-highlight-list li i {
            color: var(--accent);
            font-size: 0.75rem;
            flex-shrink: 0;
        }

        /* ============ 订阅/更新提醒 ============ */
        .subscribe-zone {
            padding: 3rem 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .subscribe-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2.5rem;
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .subscribe-info {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-info h2 {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }

        .subscribe-info p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 0.6rem;
            flex: 1;
            min-width: 280px;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.8rem 1rem;
            color: var(--text-primary);
            font-size: 0.92rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            min-width: 0;
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-faint);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--border-hover);
            box-shadow: 0 0 0 3px var(--accent-alpha);
            outline: none;
        }

        .btn-primary {
            background: var(--accent);
            color: #1A1C1E;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.8rem 1.6rem;
            font-weight: 700;
            font-size: 0.92rem;
            cursor: pointer;
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .btn-primary:hover {
            background: var(--accent-soft);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(61, 220, 132, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        /* ============ 标签云 ============ */
        .tag-cloud-section {
            padding: 3rem 0 3.5rem;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 100px;
            padding: 0.55rem 1.15rem;
            font-size: 0.84rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .tag-pill:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        .tag-pill i {
            margin-right: 0.4rem;
            font-size: 0.7rem;
            color: var(--accent);
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 3rem 0 3.5rem;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            padding: 1.1rem 1.4rem;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--accent);
            transition: transform var(--transition-medium);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 1.4rem;
            border-top: 0 solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
            padding: 0.9rem 1.4rem 1.3rem;
            border-top: 1px solid var(--border-color);
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            padding-left: 0.9rem;
            border-left: 3px solid var(--accent);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #151617;
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        .footer-brand h2 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin: 0 0 0.8rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 340px;
        }

        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--text-secondary);
            margin: 0 0 1rem;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 1.6rem 0 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: var(--text-faint);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .masthead-nav ul li {
                padding: 0 0.6rem;
            }
            .masthead-nav ul li a {
                font-size: 0.84rem;
            }
            .guide-card.span-7,
            .guide-card.span-5 {
                grid-column: span 12;
            }
            .guide-card.span-4 {
                grid-column: span 6;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .patch-spotlight-bg {
                width: 35%;
            }
        }

        @media (max-width: 768px) {
            .masthead-wrapper {
                flex-wrap: nowrap;
            }
            .hamburger-toggle {
                display: block;
            }
            .masthead-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(26, 28, 30, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border-bottom: 1px solid var(--border-color);
                display: none;
                z-index: 99;
            }
            .masthead-nav.open {
                display: block;
            }
            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 1.5rem;
            }
            .masthead-nav ul li {
                padding: 0.5rem 0;
                border-bottom: 1px solid var(--border-color);
            }
            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }
            .masthead-nav ul li a {
                font-size: 0.98rem;
                display: block;
                padding: 0.3rem 0;
            }
            .category-hero-grid {
                flex-direction: column;
                gap: 1.5rem;
            }
            .category-hero-stats {
                grid-template-columns: repeat(4, 1fr);
                width: 100%;
            }
            .mini-stat {
                text-align: center;
                padding: 0.8rem 0.5rem;
            }
            .mini-stat .stat-num {
                font-size: 1.3rem;
            }
            .guide-grid {
                gap: 1rem;
            }
            .guide-card.span-12 .card-body {
                flex-direction: column;
                align-items: flex-start;
            }
            .guide-card.span-12 .card-image {
                flex: none;
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .hot-rank-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .subscribe-card {
                flex-direction: column;
                align-items: stretch;
                padding: 1.6rem 1.4rem;
                gap: 1.2rem;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .patch-spotlight-bg {
                width: 100%;
                opacity: 0.08;
                border-radius: 0;
                right: 0;
                top: 0;
                height: 100%;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .masthead-brand a {
                font-size: 1.5rem;
            }
            .masthead-brand .brand-tag {
                font-size: 0.62rem;
                padding-left: 0.45rem;
            }
            .category-hero h1 {
                font-size: 1.75rem;
            }
            .category-hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.6rem;
            }
            .guide-card.span-4 {
                grid-column: span 12;
            }
            .guide-card .card-body {
                padding: 1rem 1.1rem 1.2rem;
            }
            .hot-rank-grid {
                grid-template-columns: 1fr;
            }
            .rank-card {
                padding: 1rem 0.9rem;
            }
            .tag-cloud {
                gap: 0.5rem;
            }
            .tag-pill {
                font-size: 0.76rem;
                padding: 0.45rem 0.85rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-answer p {
                font-size: 0.84rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }
            .subscribe-card {
                padding: 1.3rem 1rem;
            }
            .subscribe-info h2 {
                font-size: 1.2rem;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.9rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-fast);
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .hamburger-toggle:hover {
            background: var(--accent-alpha);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            padding: 1.2rem 0 0.4rem;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-bar .sep {
            margin: 0 0.5rem;
            color: var(--text-faint);
        }

        .breadcrumb-bar .current {
            color: var(--text-secondary);
        }

        /* ============ 分类H1区 ============ */
        .category-hero {
            padding: 2.5rem 0 3rem;
            border-bottom: 1px solid var(--border-color);
            background: linear-gradient(180deg, rgba(61, 220, 132, 0.04) 0%, transparent 40%);
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4.5vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-top: 1.2rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .category-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .category-hero .hero-meta i {
            color: var(--accent);
            font-size: 0.8rem;
        }

        /* ============ 数据速览条 ============ */
        .stats-strip {
            padding: 2.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .stats-strip .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stats-strip .stat-item {
            text-align: center;
            padding: 0.5rem 1rem;
            position: relative;
        }

        .stats-strip .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -0.75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 2.5rem;
            background: var(--border-color);
        }

        .stats-strip .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--accent);
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
        }

        .stats-strip .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* ============ 板块通用 ============ */
        .section-block {
            padding: 3.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-block:last-of-type {
            border-bottom: none;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
            max-width: 560px;
            line-height: 1.7;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .section-header .more-link {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition-fast);
        }

        .section-header .more-link:hover {
            color: var(--accent);
        }

        .section-header .more-link i {
            font-size: 0.8rem;
        }

        /* ============ 视频列表主体 ============ */
        .video-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.8rem;
        }

        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .video-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .video-card .card-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            background: var(--bg-secondary);
        }

        .video-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-medium);
        }

        .video-card:hover .card-thumb img {
            transform: scale(1.04);
        }

        .video-card .card-thumb .play-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.3rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

        .video-card:hover .play-icon {
            background: var(--accent);
            border-color: var(--accent);
            color: #1A1C1E;
        }

        .video-card .card-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            padding: 0.25rem 0.8rem;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--accent-soft);
            border: 1px solid rgba(183, 240, 77, 0.3);
        }

        .video-card .card-duration {
            position: absolute;
            bottom: 0.8rem;
            right: 0.8rem;
            background: rgba(0, 0, 0, 0.75);
            padding: 0.2rem 0.6rem;
            border-radius: 4px;
            font-size: 0.75rem;
            color: #fff;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .video-card .card-body {
            padding: 1.2rem 1.4rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .video-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            transition: color var(--transition-fast);
        }

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

        .video-card .card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex: 1;
        }

        .video-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-faint);
            padding-top: 0.6rem;
            border-top: 1px solid var(--border-color);
        }

        .video-card .card-meta .date {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .video-card .card-meta .views {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .video-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            transition: gap var(--transition-fast), color var(--transition-fast);
        }

        .video-card .card-link:hover {
            gap: 0.65rem;
            color: var(--accent-soft);
        }

        /* 不对称偏移 */
        .video-list-grid .video-card:nth-child(2) {
            margin-top: 1.2rem;
        }

        .video-list-grid .video-card:nth-child(4) {
            margin-top: 0.6rem;
        }

        .video-list-grid .video-card:nth-child(odd) {
            margin-bottom: 0.4rem;
        }

        /* ============ 热榜/精选 ============ */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 0.9rem 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
        }

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

        .rank-item .rank-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-faint);
            width: 2.2rem;
            text-align: center;
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.03em;
        }

        .rank-item:nth-child(1) .rank-number {
            color: var(--accent-soft);
        }

        .rank-item:nth-child(2) .rank-number {
            color: var(--accent);
        }

        .rank-item:nth-child(3) .rank-number {
            color: #5BB0E8;
        }

        .rank-item .rank-thumb {
            width: 72px;
            height: 48px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }

        .rank-item .rank-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

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

        .rank-item .rank-info .rank-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color var(--transition-fast);
        }

        .rank-item:hover .rank-info .rank-title {
            color: var(--accent);
        }

        .rank-item .rank-info .rank-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
            display: flex;
            gap: 0.8rem;
        }

        .rank-item .rank-arrow {
            color: var(--text-faint);
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }

        .rank-item:hover .rank-arrow {
            color: var(--accent);
        }

        /* ============ 特色栏目 ============ */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-md);
        }

        .feature-card .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--accent-alpha);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.2rem;
            margin-bottom: 1rem;
            transition: background var(--transition-fast);
        }

        .feature-card:hover .feature-icon {
            background: var(--accent-alpha-hover);
        }

        .feature-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ============ 标签云 ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 0.45rem 1.2rem;
            border: 1px solid var(--border-color);
            border-radius: 999px;
            font-size: 0.82rem;
            color: var(--text-secondary);
            background: var(--bg-card);
            transition: all var(--transition-fast);
        }

        .tag-cloud a:hover {
            border-color: var(--border-hover);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        /* ============ 订阅板块 ============ */
        .subscribe-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .subscribe-panel .subscribe-info {
            flex: 1;
            min-width: 240px;
        }

        .subscribe-panel .subscribe-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text-primary);
        }

        .subscribe-panel .subscribe-info p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .subscribe-panel .subscribe-form {
            display: flex;
            gap: 0.6rem;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .subscribe-panel .subscribe-form input[type="email"] {
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.2rem;
            color: var(--text-primary);
            min-width: 240px;
            font-size: 0.9rem;
            transition: border-color var(--transition-fast);
        }

        .subscribe-panel .subscribe-form input[type="email"]::placeholder {
            color: var(--text-faint);
        }

        .subscribe-panel .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 2px var(--accent-alpha);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent);
            color: #1A1C1E;
            font-weight: 700;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-soft);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(61, 220, 132, 0.3);
            color: #1A1C1E;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            cursor: pointer;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #151618;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 0;
        }

        .footer-col h3 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

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

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-faint);
        }

        .footer-bottom p {
            margin-bottom: 0;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            margin-top: 0.5rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.82rem;
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式 ============ */
        @media screen and (max-width: 1024px) {
            .masthead-nav ul li {
                padding: 0 0.6rem;
            }

            .masthead-nav ul li a {
                font-size: 0.82rem;
            }

            .stats-strip .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }

            .stats-strip .stat-item:nth-child(2)::after {
                display: none;
            }

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

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }

            .footer-col:last-child {
                grid-column: span 2;
            }
        }

        @media screen and (max-width: 768px) {
            .masthead-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(26, 28, 30, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border-bottom: 1px solid var(--border-color);
                padding: 1rem 1.5rem;
                flex-direction: column;
                align-items: stretch;
            }

            .masthead-nav.is-open {
                display: flex;
            }

            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }

            .masthead-nav ul li {
                padding: 0.6rem 0;
                border-bottom: 1px solid var(--border-color);
            }

            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }

            .masthead-nav ul li a {
                font-size: 1rem;
                display: block;
                padding: 0.3rem 0;
            }

            .hamburger-toggle {
                display: block;
                margin-left: auto;
            }

            .masthead-brand a {
                font-size: 1.6rem;
            }

            .masthead-brand .brand-tag {
                font-size: 0.62rem;
            }

            .category-hero {
                padding: 1.5rem 0 2rem;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .video-list-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .video-list-grid .video-card:nth-child(2),
            .video-list-grid .video-card:nth-child(4) {
                margin-top: 0;
            }

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

            .subscribe-panel {
                flex-direction: column;
                align-items: stretch;
                gap: 1.2rem;
                padding: 1.5rem;
            }

            .subscribe-panel .subscribe-form input[type="email"] {
                min-width: 100%;
            }

            .subscribe-panel .subscribe-form {
                flex-direction: column;
            }

            .subscribe-panel .subscribe-form .btn-primary {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .footer-col:last-child {
                grid-column: auto;
            }

            .stats-strip .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }

            .stats-strip .stat-item::after {
                display: none !important;
            }

            .stats-strip .stat-number {
                font-size: 1.8rem;
            }

            .rank-item {
                padding: 0.7rem 0.9rem;
                gap: 0.8rem;
            }

            .rank-item .rank-thumb {
                width: 56px;
                height: 40px;
            }

            .rank-item .rank-number {
                font-size: 1.3rem;
                width: 1.5rem;
            }
        }

        @media screen and (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .masthead-brand a {
                font-size: 1.4rem;
            }

            .masthead-brand .brand-tag {
                display: none;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

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

            .section-title {
                font-size: 1.25rem;
            }

            .section-block {
                padding: 2.5rem 0;
            }

            .stats-strip .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }

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

            .stats-strip .stat-label {
                font-size: 0.78rem;
            }

            .video-card .card-title {
                font-size: 0.95rem;
            }

            .footer-bottom {
                font-size: 0.72rem;
            }

            .footer-links {
                gap: 0.8rem;
                flex-wrap: wrap;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #1A1C1E;
            --bg-secondary: #212326;
            --bg-card: #24272A;
            --bg-card-hover: #2A2D31;
            --accent: #3DDC84;
            --accent-soft: #B7F04D;
            --accent-alpha: rgba(61, 220, 132, 0.12);
            --accent-alpha-hover: rgba(61, 220, 132, 0.22);
            --text-primary: #F5F5F0;
            --text-secondary: #C8CCD2;
            --text-muted: #8A909A;
            --text-faint: #5E646C;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(61, 220, 132, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --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, 0.45);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --space-xxl: 7rem;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-medium: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ============ 导航杂志刊头 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 28, 30, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 1rem;
            flex-wrap: wrap;
            padding-top: 0.6rem;
            padding-bottom: 0.6rem;
        }

        .masthead-brand {
            display: flex;
            align-items: baseline;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .masthead-brand a {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.1;
            white-space: nowrap;
        }

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

        .masthead-brand .brand-tag {
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-left: 2px solid var(--accent);
            padding-left: 0.65rem;
            line-height: 1.3;
        }

        .masthead-nav {
            display: flex;
            align-items: center;
        }

        .masthead-nav ul {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0;
        }

        .masthead-nav ul li {
            padding: 0 0.9rem;
            position: relative;
        }

        .masthead-nav ul li:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 1.1rem;
            background: var(--border-color);
        }

        .masthead-nav ul li a {
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            color: var(--text-secondary);
            padding: 0.5rem 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .masthead-nav ul li a:hover,
        .masthead-nav ul li a.active {
            color: var(--accent);
        }

        .masthead-nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width var(--transition-medium);
        }

        .masthead-nav ul li a:hover::after,
        .masthead-nav ul li a.active::after {
            width: 100%;
        }

        .masthead-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border-color), transparent);
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            line-height: 1;
        }

        .hamburger-toggle:hover {
            background: var(--bg-card-hover);
            color: var(--accent);
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding: 0.75rem 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-nav .separator {
            color: var(--text-faint);
            font-size: 0.75rem;
        }

        .breadcrumb-nav .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ 分类标题区 ============ */
        .category-header {
            padding: var(--space-lg) 0 var(--space-md);
            background: var(--bg-primary);
        }

        .category-header .h1-wrap {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .category-header h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0;
        }

        .category-header .h1-accent {
            display: inline-block;
            width: 6px;
            height: 2.2rem;
            background: var(--accent);
            border-radius: 3px;
            flex-shrink: 0;
        }

        .category-header .category-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin-top: 0.75rem;
            line-height: 1.75;
        }

        /* ============ 数据速览条 ============ */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: var(--space-md) 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-item {
            text-align: left;
            padding: 0.5rem 1.5rem;
            border-left: 1px solid var(--border-color);
        }

        .stat-item:first-child {
            border-left: none;
            padding-left: 0;
        }

        .stat-number {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

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

        .section-block.alt-bg {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: var(--space-md);
        }

        .section-heading h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0;
            color: var(--text-primary);
        }

        .section-heading .heading-line {
            display: inline-block;
            width: 2.5rem;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 0.75rem;
            vertical-align: middle;
        }

        .section-heading .sub-text {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ============ 热榜/精选板块 ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.9rem 1.2rem;
            transition: all var(--transition-fast);
        }

        .ranking-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .ranking-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-faint);
            min-width: 2.2rem;
            text-align: center;
            font-variant-numeric: tabular-nums;
            transition: color var(--transition-fast);
        }

        .ranking-item:nth-child(1) .ranking-number {
            color: #F5C542;
        }

        .ranking-item:nth-child(2) .ranking-number {
            color: #C0C8D0;
        }

        .ranking-item:nth-child(3) .ranking-number {
            color: #D68A5C;
        }

        .ranking-item:hover .ranking-number {
            color: var(--accent);
        }

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

        .ranking-info h3 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 0.25rem;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .ranking-info .rank-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .ranking-thumb {
            width: 68px;
            height: 48px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        /* ============ 列表主体 ============ */
        .article-masonry {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .article-card .card-thumb {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 0;
        }

        .article-card .card-body {
            padding: 1.2rem 1.4rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: var(--accent-alpha);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 0.75rem;
            align-self: flex-start;
        }

        .article-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 0 0 0.5rem;
            line-height: 1.45;
            color: var(--text-primary);
        }

        .article-card .card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 1rem;
        }

        .article-card .card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 0.9rem;
        }

        .article-card .read-link {
            font-weight: 500;
            color: var(--accent);
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: gap var(--transition-fast);
        }

        .article-card .read-link:hover {
            gap: 0.55rem;
            color: var(--accent-soft);
        }

        .article-card:nth-child(odd) {
            transform: translateY(0.8rem);
        }

        .article-card:nth-child(odd):hover {
            transform: translateY(0.8rem) translateY(-3px);
        }

        /* ============ 标签云 ============ */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .tag-link {
            display: inline-block;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 0.45rem 1.1rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
        }

        .tag-link:hover {
            color: var(--accent);
            border-color: var(--border-hover);
            background: var(--accent-alpha);
            transform: translateY(-1px);
        }

        /* ============ 订阅表单 ============ */
        .subscribe-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 2.2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .subscribe-panel .sub-text h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 0.4rem;
            color: var(--text-primary);
        }

        .subscribe-panel .sub-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 0.75rem;
            flex: 1;
            min-width: 280px;
            max-width: 460px;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: border-color var(--transition-fast);
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-faint);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            outline: none;
        }

        .btn {
            display: inline-block;
            font-weight: 600;
            font-size: 0.92rem;
            letter-spacing: 0.03em;
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.5rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--bg-primary);
        }

        .btn-primary:hover {
            background: var(--accent-soft);
            color: var(--bg-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-alpha);
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.4rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition-medium);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-medium), padding var(--transition-medium);
            padding: 0 1.4rem;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            border-left: 3px solid transparent;
            margin-left: 1.1rem;
        }

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

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
            border-left-color: var(--accent);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #141517;
            border-top: 1px solid var(--border-color);
            padding: var(--space-lg) 0 var(--space-md);
        }

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

        .footer-brand h2 {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin: 0 0 0.5rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 0.75rem;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: var(--space-md);
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-faint);
            margin: 0;
            line-height: 1.6;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
        }

        .footer-links a {
            font-size: 0.82rem;
            color: var(--text-faint);
            transition: color var(--transition-fast);
        }

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

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

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

            .stat-item {
                border-left: 1px solid var(--border-color);
                padding-left: 1rem;
            }

            .stat-item:nth-child(odd) {
                border-left: none;
                padding-left: 0;
            }

            .masthead-inner {
                flex-wrap: nowrap;
            }

            .masthead-nav ul li {
                padding: 0 0.6rem;
            }

            .masthead-nav ul li a {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .masthead-inner {
                flex-wrap: wrap;
            }

            .hamburger-toggle {
                display: block;
            }

            .masthead-nav {
                display: none;
                width: 100%;
                flex-basis: 100%;
                background: var(--bg-primary);
                border-top: 1px solid var(--border-color);
            }

            .masthead-nav.open {
                display: block;
            }

            .masthead-nav ul {
                flex-direction: column;
                align-items: stretch;
                padding: 0.5rem 0;
            }

            .masthead-nav ul li {
                padding: 0.25rem 0;
            }

            .masthead-nav ul li:not(:last-child)::after {
                display: none;
            }

            .masthead-nav ul li a {
                display: block;
                padding: 0.7rem 0.25rem;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-color);
            }

            .masthead-nav ul li:last-child a {
                border-bottom: none;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

            .stat-item {
                border-left: none;
                padding-left: 0.5rem;
                padding-right: 0.5rem;
            }

            .article-masonry {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }

            .article-card:nth-child(odd) {
                transform: none;
            }

            .article-card:nth-child(odd):hover {
                transform: translateY(-3px);
            }

            .subscribe-panel {
                flex-direction: column;
                align-items: stretch;
                text-align: left;
                padding: 1.5rem;
            }

            .subscribe-form {
                min-width: auto;
                max-width: 100%;
                flex-direction: column;
                gap: 0.6rem;
            }

            .subscribe-form .btn {
                width: 100%;
            }

            .section-heading {
                flex-direction: column;
                gap: 0.5rem;
            }

            .ranking-item {
                flex-wrap: wrap;
            }

            .ranking-thumb {
                width: 60px;
                height: 44px;
            }

            .category-header {
                padding: var(--space-md) 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

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

        @media (max-width: 520px) {
            .grid-container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .masthead-brand a {
                font-size: 1.6rem;
            }

            .masthead-brand .brand-tag {
                font-size: 0.65rem;
                letter-spacing: 0.05em;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }

            .stat-item {
                border-left: none;
                padding-left: 0;
                padding: 0.4rem 0;
                text-align: left;
            }

            .stat-item:not(:last-child) {
                border-bottom: 1px solid var(--border-color);
            }

            .subscribe-panel {
                padding: 1.2rem;
            }

            .faq-question {
                padding: 0.9rem 1rem;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 1rem;
                margin-left: 0.7rem;
                font-size: 0.88rem;
            }

            .ranking-item {
                padding: 0.7rem 0.85rem;
            }
        }