/* roulang page: index */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        :focus-visible {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
        }

        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            font-size: 1.4rem;
            padding: 0.4rem 0.7rem;
            transition: border-color var(--transition-fast);
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, #0C0E12 0%, #0E1116 40%, #0A0C10 100%);
            overflow: hidden;
            padding: 4rem 0 3rem;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/8daeffc559140d7e.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.55;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 12, 16, 0.72) 0%, rgba(10, 12, 16, 0.88) 60%, rgba(10, 12, 16, 0.95) 100%);
        }

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

        .hero-inner {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3.5rem;
            align-items: center;
        }

        .hero-copy h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }

        .hero-copy h1 .highlight {
            color: var(--color-accent-light);
            position: relative;
            white-space: nowrap;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 2rem;
            max-width: 540px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
            margin-bottom: 2rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.6rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-accent);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: rgba(215, 166, 42, 0.1);
            color: var(--color-accent-light);
            border-color: var(--color-accent-light);
            transform: translateY(-2px);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .hero-metric-pill {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            background: rgba(21, 24, 33, 0.85);
            border: 1px solid var(--color-border);
            border-radius: 50px;
            padding: 0.45rem 1.1rem;
            font-size: 0.85rem;
            color: var(--color-text-primary);
            backdrop-filter: blur(6px);
        }

        .hero-metric-pill .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 8px rgba(215, 166, 42, 0.6);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.55;
                transform: scale(1.3);
            }
        }

        .hero-data-board {
            background: rgba(21, 24, 33, 0.82);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-md);
        }

        .hero-data-board .board-label {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--color-text-muted);
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .hero-data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--color-border);
        }

        .hero-data-row:last-child {
            border-bottom: none;
        }

        .hero-data-row .data-key {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
        }

        .hero-data-row .data-value {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            font-variant-numeric: tabular-nums;
        }

        .hero-data-row .data-value.accent {
            color: var(--color-accent-light);
        }

        /* ========== 通用 Section ========== */
        .section {
            padding: 4.5rem 0;
            position: relative;
        }

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

        .section-primary {
            background-color: var(--color-bg-primary);
        }

        .section-elevated {
            background-color: var(--color-bg-card);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.85;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--color-accent);
            background: rgba(215, 166, 42, 0.1);
            border: 1px solid rgba(215, 166, 42, 0.25);
            border-radius: 50px;
            padding: 0.25rem 0.85rem;
            margin-bottom: 0.9rem;
        }

        /* ========== 指标看板 ========== */
        .metrics-dashboard {
            background-color: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }

        .metrics-dashboard .grid-x {
            margin: 0;
        }

        .metrics-dashboard .cell {
            padding: 2rem 1.8rem;
            border-right: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-fast);
            min-height: 160px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .metrics-dashboard .cell:hover {
            background-color: var(--color-bg-card-hover);
        }

        .metric-number {
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
            margin-bottom: 0.4rem;
        }

        .metric-number .unit {
            font-size: 1.2rem;
            color: var(--color-accent);
            margin-left: 0.2rem;
        }

        .metric-label {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        /* ========== 服务矩阵 ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .service-card {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.75rem 1.5rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent) 0%, transparent 100%);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

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

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

        .service-card .service-icon {
            width: 48px;
            height: 48px;
            background: rgba(215, 166, 42, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.3rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.6rem;
            line-height: 1.35;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
            flex-grow: 1;
        }

        .service-card .card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
        }

        .service-card .card-arrow:hover {
            gap: 0.65rem;
            color: var(--color-accent-light);
        }

        /* ========== 对比表 ========== */
        .comparison-wrapper {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .comparison-row {
            display: grid;
            grid-template-columns: 1fr 1.1fr 1.1fr;
            border-bottom: 1px solid var(--color-border);
            align-items: stretch;
        }

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

        .comparison-row.comparison-header {
            background-color: var(--color-bg-elevated);
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
        }

        .comparison-row .comp-cell {
            padding: 1.2rem 1.4rem;
            font-size: 0.92rem;
            color: var(--color-text-primary);
            line-height: 1.6;
            border-right: 1px solid var(--color-border);
            display: flex;
            align-items: center;
        }

        .comparison-row .comp-cell:last-child {
            border-right: none;
        }

        .comparison-row .comp-cell.dim {
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .comparison-row .comp-cell.standard {
            color: var(--color-text-secondary);
        }

        .comparison-row .comp-cell.speed {
            background-color: rgba(215, 166, 42, 0.06);
            color: var(--color-text-primary);
            font-weight: 500;
            border-left: 3px solid var(--color-accent);
        }

        .comparison-row .comp-cell .check {
            color: var(--color-accent);
            margin-right: 0.5rem;
        }

        .comparison-row .comp-cell .cross {
            color: var(--color-danger);
            margin-right: 0.5rem;
        }

        /* ========== 里程碑时间线 ========== */
        .timeline-horizontal {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            position: relative;
            padding-top: 0.5rem;
        }

        .timeline-horizontal::before {
            content: '';
            position: absolute;
            top: 14px;
            left: 5%;
            right: 5%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent) 0%, rgba(215, 166, 42, 0.4) 50%, transparent 100%);
        }

        .timeline-item {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            position: relative;
            padding: 0 0.9rem;
        }

        .timeline-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--color-accent);
            border: 3px solid var(--color-bg-secondary);
            box-shadow: 0 0 0 4px rgba(215, 166, 42, 0.25);
            margin-bottom: 1rem;
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .timeline-item .timeline-year {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 0.4rem;
            font-variant-numeric: tabular-nums;
        }

        .timeline-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.3rem;
            line-height: 1.35;
        }

        .timeline-item p {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* ========== 资讯列表 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

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

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

        .news-card .news-cover {
            aspect-ratio: 16 / 9;
            background-color: var(--color-bg-elevated);
            overflow: hidden;
            position: relative;
        }

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

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

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

        .news-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            background: rgba(215, 166, 42, 0.1);
            color: var(--color-accent);
            border: 1px solid rgba(215, 166, 42, 0.25);
            margin-bottom: 0.7rem;
            align-self: flex-start;
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.4;
            margin-bottom: 0.5rem;
        }

        .news-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex-grow: 1;
        }

        .news-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 0.8rem;
            padding-top: 0.8rem;
            border-top: 1px solid var(--color-border);
        }

        /* ========== 平台保障 ========== */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .assurance-item {
            text-align: center;
            padding: 1.8rem 1.2rem;
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

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

        .assurance-item .assurance-icon {
            font-size: 1.8rem;
            color: var(--color-accent);
            margin-bottom: 0.8rem;
        }

        .assurance-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.5rem;
        }

        .assurance-item p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== 快速解答 ========== */
        .quick-qa-layout {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 2.5rem;
            align-items: flex-start;
        }

        .quick-qa-side h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.8rem;
        }

        .quick-qa-side p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

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

        .quick-qa-item {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 1rem 1.3rem;
            transition: all var(--transition-fast);
            cursor: default;
        }

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

        .quick-qa-item .qa-q {
            font-weight: 600;
            color: #ffffff;
            font-size: 0.92rem;
            margin-bottom: 0.3rem;
        }

        .quick-qa-item .qa-a {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-layout {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 2.5rem;
            align-items: flex-start;
        }

        .faq-left h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.8rem;
        }

        .faq-left p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

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

        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 1px rgba(215, 166, 42, 0.3);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.3rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
            transition: background-color var(--transition-fast);
            user-select: none;
        }

        .faq-item .faq-question:hover {
            background-color: var(--color-bg-card-hover);
        }

        .faq-item .faq-icon {
            font-size: 1rem;
            color: var(--color-accent);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 1.3rem;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            border-left: 3px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 260px;
            padding: 0 1.3rem 1.2rem;
            border-left-color: var(--color-accent);
        }

        /* ========== 分类入口 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .category-entry {
            display: block;
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .category-entry:hover {
            transform: translateY(-4px);
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-md);
        }

        .category-entry .cat-cover {
            aspect-ratio: 16 / 9;
            background-color: var(--color-bg-elevated);
            overflow: hidden;
        }

        .category-entry .cat-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .category-entry:hover .cat-cover img {
            transform: scale(1.05);
        }

        .category-entry .cat-body {
            padding: 1.2rem 1.4rem 1.4rem;
        }

        .category-entry .cat-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.4rem;
        }

        .category-entry .cat-body p {
            font-size: 0.86rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== 品牌介绍 ========== */
        .brand-story {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 3rem;
            align-items: center;
        }

        .brand-story .story-image {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            aspect-ratio: 4 / 3;
            overflow: hidden;
            position: relative;
        }

        .brand-story .story-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        .brand-story .story-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 1rem;
        }

        .brand-story .story-text p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.95;
            margin-bottom: 1rem;
        }

        /* ========== 转化表单 ========== */
        .cta-form-section {
            background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-elevated) 100%);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .cta-form-section .form-copy h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.8rem;
        }

        .cta-form-section .form-copy p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        .cta-form-section .form-notes {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .cta-form-section .form-note {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }

        .cta-form-section .form-note i {
            color: var(--color-accent);
            flex-shrink: 0;
        }

        .assessment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .assessment-form .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .assessment-form label {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-primary);
        }

        .assessment-form input,
        .assessment-form select {
            background-color: #10131A;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            padding: 0.75rem 1rem;
            font-size: 0.92rem;
            transition: border-color var(--transition-fast);
        }

        .assessment-form input:focus,
        .assessment-form select:focus {
            border-color: var(--color-accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(215, 166, 42, 0.18);
        }

        .assessment-form .btn-submit {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.8rem 1.6rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            margin-top: 0.4rem;
            width: fit-content;
        }

        .assessment-form .btn-submit:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #08090C;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr 0.8fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 1rem;
            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: #9CA3AF;
            transition: color var(--transition-fast);
        }

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

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

        .footer-bottom .copyright {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 1.5rem;
            font-size: 0.8rem;
        }

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

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .hero-copy h1 {
                font-size: 2.2rem;
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .assurance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-horizontal {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
            .timeline-horizontal::before {
                display: none;
            }
            .quick-qa-layout,
            .faq-layout,
            .brand-story,
            .cta-form-section {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background-color: #0C0E12;
                border-bottom: 1px solid var(--color-border);
                padding: 0.75rem 1.25rem;
                gap: 0.25rem;
                z-index: 99;
            }

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

            .main-nav li a {
                padding: 0.7rem 0.85rem;
                font-size: 0.95rem;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .header-cta {
                display: none;
            }

            .site-header .container {
                justify-content: space-between;
            }

            .hero-section {
                min-height: auto;
                padding: 3rem 0 2.5rem;
            }
            .hero-copy h1 {
                font-size: 1.85rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-metrics {
                flex-direction: column;
            }
            .section {
                padding: 3rem 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .comparison-row {
                grid-template-columns: 1fr;
                border-bottom: 2px solid var(--color-border);
            }
            .comparison-row .comp-cell {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
            }
            .comparison-row .comp-cell:last-child {
                border-bottom: none;
            }
            .comparison-row .comp-cell.speed {
                border-left: none;
                border-top: 3px solid var(--color-accent);
            }
            .timeline-horizontal {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .metrics-dashboard .cell {
                border-right: none;
            }
        }

        @media (max-width: 520px) {
            .service-grid,
            .assurance-grid,
            .category-grid,
            .news-grid {
                grid-template-columns: 1fr;
            }
            .hero-copy h1 {
                font-size: 1.55rem;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .cta-form-section {
                padding: 2rem 1.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.75rem;
            font-weight: 650;
            line-height: 1.35;
            color: #ffffff;
        }

        h1 {
            font-size: 2.4rem;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: 1.75rem;
            letter-spacing: -0.005em;
        }

        h3 {
            font-size: 1.25rem;
        }

        p {
            margin: 0 0 1rem;
            color: var(--color-text-secondary);
        }

        ul,
        ol {
            padding-left: 1.2rem;
            margin: 0 0 1rem;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            font-size: 1.2rem;
            padding: 0.45rem 0.7rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

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

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

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

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

        /* ========== 分类H1区 ========== */
        .category-hero {
            position: relative;
            padding: 5rem 0 4rem;
            background-color: var(--color-bg-secondary);
            background-image: url('/assets/images/33649a88e652a5a4.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 12, 16, 0.72) 0%, rgba(10, 12, 16, 0.92) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 25% 40%, rgba(215, 166, 42, 0.06) 0%, transparent 55%),
                radial-gradient(circle at 75% 60%, rgba(230, 75, 60, 0.04) 0%, transparent 45%);
            z-index: 2;
            pointer-events: none;
        }

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

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 750;
            letter-spacing: -0.015em;
            margin-bottom: 1rem;
            color: #ffffff;
            line-height: 1.2;
        }

        .category-hero .hero-desc {
            font-size: 1.12rem;
            line-height: 1.9;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin-bottom: 0;
        }

        .hero-meta-badges {
            display: flex;
            gap: 0.75rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border);
            border-radius: 999px;
            padding: 0.4rem 0.95rem;
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }

        .hero-badge i {
            color: var(--color-accent);
            font-size: 0.75rem;
        }

        /* ========== Section 通用 ========== */
        .section-block {
            padding: 4rem 0;
            border-bottom: 1px solid var(--color-border);
        }

        .section-block.alt-bg {
            background-color: var(--color-bg-secondary);
        }

        .section-block.dark-bg {
            background-color: var(--color-bg-primary);
        }

        .section-heading {
            margin-bottom: 2.5rem;
        }

        .section-heading .section-eyebrow {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 0.5rem;
        }

        .section-heading h2 {
            font-size: 1.75rem;
            margin-bottom: 0.5rem;
        }

        .section-heading .section-sub {
            color: var(--color-text-secondary);
            font-size: 1rem;
            line-height: 1.85;
            max-width: 640px;
            margin-bottom: 0;
        }

        /* ========== 卡片通用 ========== */
        .content-card {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background-color: var(--color-bg-elevated);
            flex-shrink: 0;
        }

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

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

        .card-body {
            padding: 1.4rem 1.5rem 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
            line-height: 1.45;
            color: #ffffff;
        }

        .card-body .card-desc {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
            flex: 1;
        }

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

        .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .card-meta .read-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--color-accent);
            font-weight: 500;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }

        .card-meta .read-btn:hover {
            color: var(--color-accent-light);
            gap: 0.55rem;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.92rem;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-primary:focus {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            border: 1px solid var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            text-align: center;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: rgba(215, 166, 42, 0.08);
            border-color: var(--color-accent-light);
            color: var(--color-accent-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline:focus {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

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

        /* ========== 场景索引 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .scene-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.25rem;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .scene-item:hover {
            background: var(--color-bg-card-hover);
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .scene-item .scene-icon {
            width: 40px;
            height: 40px;
            background: rgba(215, 166, 42, 0.1);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-bottom: 0.25rem;
        }

        .scene-item h4 {
            font-size: 1rem;
            margin: 0;
            color: #ffffff;
            font-weight: 600;
        }

        .scene-item p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 数据指标条 ========== */
        .metrics-bars {
            display: flex;
            flex-direction: column;
            gap: 1.75rem;
            max-width: 780px;
        }

        .metric-bar-item {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .metric-bar-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .metric-bar-header .metric-name {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
        }

        .metric-bar-header .metric-value {
            font-size: 0.9rem;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .metric-bar-track {
            width: 100%;
            height: 8px;
            background: var(--color-bg-elevated);
            border-radius: 999px;
            overflow: hidden;
            border: 1px solid var(--color-border);
        }

        .metric-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent-dark) 0%, var(--color-accent) 60%, var(--color-accent-light) 100%);
            border-radius: 999px;
            transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            width: 0;
        }

        .metric-bar-fill.is-visible {
            width: var(--fill-width);
        }

        .metric-bar-comment {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* ========== 热门文章 ========== */
        .hot-articles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .hot-article-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 0.65rem;
        }

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

        .hot-article-item .hot-thumb {
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--color-bg-elevated);
            flex-shrink: 0;
        }

        .hot-article-item .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-article-item h4 {
            font-size: 0.98rem;
            margin: 0;
            color: #ffffff;
            font-weight: 600;
            line-height: 1.5;
        }

        .hot-article-item h4 a {
            color: #ffffff;
            transition: color var(--transition-fast);
        }

        .hot-article-item h4 a:hover {
            color: var(--color-accent-light);
        }

        .hot-article-item .hot-desc {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .hot-article-item .hot-tag {
            display: inline-flex;
            align-self: flex-start;
            background: rgba(215, 166, 42, 0.1);
            border: 1px solid rgba(215, 166, 42, 0.25);
            border-radius: 999px;
            padding: 0.2rem 0.7rem;
            font-size: 0.72rem;
            color: var(--color-accent);
            font-weight: 500;
        }

        /* ========== CTA 收尾 ========== */
        .cta-block {
            background: linear-gradient(135deg, #151821 0%, #0A0C10 100%);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(215, 166, 42, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-block .cta-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.5rem;
            margin: 0 auto 1.2rem;
        }

        .cta-block h2 {
            font-size: 1.6rem;
            margin-bottom: 0.6rem;
            color: #ffffff;
        }

        .cta-block p {
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 1.75rem;
            font-size: 0.98rem;
            line-height: 1.85;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #0B0D11;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 1.5rem;
            color: var(--color-text-secondary);
        }

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

        .site-footer .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-top: 0.75rem;
            max-width: 320px;
        }

        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .site-footer .footer-col h5 {
            font-size: 0.92rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

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

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

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

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

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

        .site-footer .copyright {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        .site-footer .footer-links {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

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

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

        /* ========== 响应式 - 桌面大屏 ========== */
        @media screen and (max-width: 1024px) {
            h1 {
                font-size: 2.1rem;
            }

            .category-hero h1 {
                font-size: 2.5rem;
            }

            h2 {
                font-size: 1.55rem;
            }

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

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

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

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

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

        @media screen and (max-width: 768px) {
            .site-header .container {
                flex-wrap: nowrap;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #0C0E12;
                flex-direction: column;
                padding: 1rem 1.25rem;
                border-bottom: 1px solid var(--color-border);
                gap: 0.25rem;
                z-index: 99;
            }

            .main-nav.is-open {
                display: flex;
            }

            .main-nav li {
                width: 100%;
            }

            .main-nav li a {
                width: 100%;
                padding: 0.7rem 0.85rem;
                font-size: 0.95rem;
            }

            .header-cta {
                font-size: 0.82rem;
                padding: 0.5rem 1rem;
            }

            .brand-logo {
                font-size: 1.1rem;
                gap: 0.5rem;
            }

            .brand-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .brand-logo span:last-child {
                display: none;
            }

            .category-hero {
                padding: 3.5rem 0 3rem;
            }

            .category-hero h1 {
                font-size: 2.1rem;
            }

            .category-hero .hero-desc {
                font-size: 1rem;
            }

            .section-block {
                padding: 3rem 0;
            }

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

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

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

            .cta-block {
                padding: 2.25rem 1.5rem;
            }

            .cta-block h2 {
                font-size: 1.35rem;
            }

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

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

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }
        }

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

            h1 {
                font-size: 1.75rem;
            }

            .category-hero h1 {
                font-size: 1.85rem;
            }

            h2 {
                font-size: 1.35rem;
            }

            h3 {
                font-size: 1.1rem;
            }

            .category-hero {
                padding: 2.75rem 0 2.5rem;
            }

            .hero-badge {
                font-size: 0.75rem;
                padding: 0.35rem 0.75rem;
            }

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

            .card-body {
                padding: 1.1rem 1.15rem 1.2rem;
            }

            .card-body h3 {
                font-size: 1.05rem;
            }

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

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

            .breadcrumb-row {
                font-size: 0.78rem;
            }

            .btn-primary,
            .btn-outline {
                font-size: 0.85rem;
                padding: 0.6rem 1.3rem;
            }

            .metric-bar-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.2rem;
            }
        }

        /* ========== 无障碍 focus ========== */
        a:focus,
        button:focus,
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========== 计数动画辅助 ========== */
        .count-num {
            font-variant-numeric: tabular-nums;
        }

/* roulang page: category1 */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent-light);
            text-decoration: none;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6,
        p {
            margin: 0;
            padding: 0;
        }
        h1 {
            font-size: 2.4rem;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #ffffff;
        }
        h2 {
            font-size: 1.75rem;
            line-height: 1.4;
            font-weight: 600;
            letter-spacing: 0.01em;
            color: var(--color-text-primary);
        }
        h3 {
            font-size: 1.25rem;
            line-height: 1.5;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text-secondary);
            margin-bottom: 1rem;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }
        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }
        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }
        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            font-size: 1.2rem;
            padding: 0.5rem 0.7rem;
            line-height: 1;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background-color: var(--color-bg-secondary);
            border-bottom: 1px solid var(--color-border);
            padding: 0.65rem 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .breadcrumb li::after {
            content: '/';
            color: var(--color-text-muted);
            font-size: 0.75rem;
            margin-left: 0.5rem;
        }
        .breadcrumb li:last-child::after {
            display: none;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-light);
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 500;
        }

        /* ========== 分类H1区 ========== */
        .category-hero {
            background-color: var(--color-bg-secondary);
            background-image: linear-gradient(180deg, rgba(10, 12, 16, 0.88) 0%, rgba(10, 12, 16, 0.94) 100%), url('/assets/images/8daeffc559140d7e.webp');
            background-size: cover;
            background-position: center;
            padding: 4.5rem 0 4rem;
            border-bottom: 1px solid var(--color-border);
            position: relative;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 12, 16, 0.55);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 1.25rem;
            color: #ffffff;
            line-height: 1.25;
        }
        .category-hero .hero-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1.5rem;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(215, 166, 42, 0.12);
            border: 1px solid rgba(215, 166, 42, 0.3);
            color: var(--color-accent-light);
            font-size: 0.78rem;
            font-weight: 500;
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 3.5rem 0;
        }
        .section-alt {
            background-color: var(--color-bg-secondary);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 2rem;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 600;
            color: #ffffff;
            margin: 0;
        }
        .section-header .section-meta {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
            border-radius: 3px;
            margin: 0.75rem 0 1.5rem;
        }

        /* ========== 卡片主体 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .content-card {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            background-color: var(--color-bg-card-hover);
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .content-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background-color: var(--color-bg-elevated);
            flex-shrink: 0;
        }
        .content-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .content-card:hover .card-cover img {
            transform: scale(1.04);
        }
        .content-card .card-badge {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: rgba(10, 12, 16, 0.82);
            border: 1px solid var(--color-border-strong);
            color: var(--color-accent-light);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }
        .content-card .card-body {
            padding: 1.25rem 1.25rem 1.35rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.6rem;
            line-height: 1.45;
            letter-spacing: 0.01em;
        }
        .content-card .card-summary {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 0.85rem;
        }
        .content-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .card-read-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            padding: 0.3rem 0.6rem;
            border-radius: var(--radius-sm);
        }
        .card-read-btn:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }
        .card-read-btn i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }
        .card-read-btn:hover i {
            transform: translateX(3px);
        }

        /* ========== 场景索引 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .scene-item {
            background-color: var(--color-bg-elevated);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.25rem;
            transition: all var(--transition-fast);
        }
        .scene-item:hover {
            border-color: var(--color-border-strong);
            background-color: var(--color-bg-card-hover);
            transform: translateY(-2px);
        }
        .scene-item .scene-icon {
            width: 42px;
            height: 42px;
            background: rgba(215, 166, 42, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.1rem;
            margin-bottom: 0.9rem;
        }
        .scene-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.5rem;
        }
        .scene-item p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 数据指标 ========== */
        .metrics-panel {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 2.25rem 2rem;
        }
        .metric-row {
            display: grid;
            grid-template-columns: 1fr 1fr 3fr auto;
            align-items: center;
            gap: 1.5rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border);
        }
        .metric-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .metric-row:first-child {
            padding-top: 0;
        }
        .metric-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            white-space: nowrap;
        }
        .metric-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .metric-bar-wrapper {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .metric-bar-track {
            flex: 1;
            height: 8px;
            background-color: var(--color-bg-elevated);
            border-radius: 999px;
            overflow: hidden;
        }
        .metric-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent-light));
            border-radius: 999px;
            transition: width 1.2s ease;
        }
        .metric-comment {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            white-space: nowrap;
            max-width: 180px;
            text-align: right;
        }

        /* ========== 热门文章 ========== */
        .hot-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }
        .hot-item {
            background-color: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }
        .hot-item:hover {
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .hot-item .hot-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--color-bg-elevated);
        }
        .hot-item .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .hot-item:hover .hot-img img {
            transform: scale(1.05);
        }
        .hot-item .hot-content {
            padding: 1.1rem 1.2rem 1.25rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .hot-item .hot-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.5;
            margin-bottom: 0.5rem;
        }
        .hot-item .hot-summary {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== CTA 收尾 ========== */
        .cta-section {
            background-color: var(--color-bg-secondary);
            background-image: linear-gradient(135deg, rgba(215, 166, 42, 0.06) 0%, rgba(10, 12, 16, 0.92) 100%), url('/assets/images/dad063dcd50c0491.webp');
            background-size: cover;
            background-position: center;
            padding: 4rem 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-box {
            background-color: rgba(21, 24, 33, 0.92);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2.5rem;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 {
            font-size: 1.6rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.75rem;
        }
        .cta-box p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-primary:focus {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: transparent;
            color: var(--color-accent);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.65rem 1.5rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-accent);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .btn-secondary:hover {
            background: rgba(215, 166, 42, 0.08);
            color: var(--color-accent-light);
            border-color: var(--color-accent-light);
        }
        .btn-secondary:focus {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: #0A0C10;
            border-top: 1px solid var(--color-border);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-top: 0.75rem;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.15rem;
            color: #ffffff;
        }
        .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            border-top: 1px solid var(--color-border);
            padding-top: 1.25rem;
            flex-wrap: wrap;
        }
        .copyright {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .footer-links {
            display: flex;
            gap: 1.5rem;
        }
        .footer-links a {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent-light);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .metric-row {
                grid-template-columns: 1fr auto 2fr auto;
                gap: 1rem;
            }
            .category-hero h1 {
                font-size: 2.3rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background-color: #0C0E12;
                border-bottom: 1px solid var(--color-border);
                flex-direction: column;
                align-items: flex-start;
                padding: 0.75rem 1.25rem 1.25rem;
                gap: 0.25rem;
                box-shadow: var(--shadow-md);
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav li a {
                display: block;
                width: 100%;
                padding: 0.7rem 0.85rem;
                font-size: 0.95rem;
            }
            .header-cta {
                display: none;
            }
            .site-header .container {
                flex-wrap: wrap;
                position: relative;
                padding-top: 0.5rem;
                padding-bottom: 0.5rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .hot-list {
                grid-template-columns: 1fr;
            }
            .category-hero {
                padding: 3rem 0 2.5rem;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .metric-row {
                grid-template-columns: 1fr auto;
                gap: 0.75rem;
                flex-wrap: wrap;
            }
            .metric-bar-wrapper {
                grid-column: 1 / -1;
                width: 100%;
            }
            .metric-comment {
                grid-column: 1 / -1;
                text-align: left;
                max-width: none;
                white-space: normal;
            }
            .section {
                padding: 2.5rem 0;
            }
            .cta-box {
                padding: 1.75rem 1.5rem;
            }
            .cta-box h2 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .footer-brand {
                grid-column: auto;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
        }
        @media (max-width: 520px) {
            .brand-logo span:last-child {
                display: none;
            }
            .brand-logo {
                font-size: 1.15rem;
                gap: 0.5rem;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .category-hero h1 {
                font-size: 1.65rem;
            }
            .category-hero .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-tags {
                gap: 0.4rem;
            }
            .hero-tag {
                font-size: 0.7rem;
                padding: 0.3rem 0.65rem;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .metric-value {
                font-size: 1.3rem;
            }
            .cta-box {
                padding: 1.5rem 1.1rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .footer-links {
                flex-wrap: wrap;
                gap: 0.75rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
        }

        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .site-header .container {
                flex-wrap: wrap;
                height: auto;
                padding-top: 0.75rem;
                padding-bottom: 0.75rem;
                gap: 0.5rem;
            }
            .main-nav {
                order: 3;
                width: 100%;
                display: none;
                flex-direction: column;
                align-items: flex-start;
                background-color: #0C0E12;
                border-top: 1px solid var(--color-border);
                margin-top: 0.5rem;
                padding-top: 0.5rem;
            }
            .main-nav.is-open {
                display: flex;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav li a {
                width: 100%;
                padding: 0.75rem 0.5rem;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .brand-logo span:last-child {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 1.1rem;
            }
            .brand-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
        }

        /* ========== 首屏 Hero ========== */
        .hero {
            background: linear-gradient(135deg, #0A0C10 0%, #141A22 52%, #1E222B 100%);
            padding: 4.5rem 0 4rem;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }
        .hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(circle at 70% 30%, rgba(215, 166, 42, 0.16), transparent 28%),
                radial-gradient(circle at 15% 85%, rgba(230, 75, 60, 0.12), transparent 30%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-title {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 1.2rem;
            color: #ffffff;
        }
        .hero-title span {
            color: var(--color-accent);
            white-space: nowrap;
        }
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 2rem;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            padding: 0.75rem 1.8rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            font-size: 1rem;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            color: #0C0E12;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: transparent;
            border: 1px solid var(--color-accent);
            color: var(--color-accent);
            font-weight: 600;
            padding: 0.75rem 1.8rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            font-size: 1rem;
        }
        .btn-secondary:hover {
            background: rgba(215, 166, 42, 0.08);
            color: var(--color-accent-light);
            border-color: var(--color-accent-light);
        }
        .hero-metrics {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }
        .metric-capsule {
            background: rgba(21, 24, 33, 0.8);
            border: 1px solid var(--color-border);
            border-radius: 999px;
            padding: 0.65rem 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .metric-capsule:hover {
            border-color: var(--color-accent);
            background: rgba(215, 166, 42, 0.06);
        }
        .metric-capsule i {
            color: var(--color-accent);
        }
        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-visual .visual-main {
            width: 100%;
            aspect-ratio: 1 / 1;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--color-border-strong);
            background: var(--color-bg-card);
        }
        .hero-visual .visual-main img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.92;
        }
        .visual-overlay {
            position: absolute;
            bottom: 1rem;
            left: 1rem;
            right: 1rem;
            background: rgba(10, 12, 16, 0.72);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 0.8rem 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            border: 1px solid var(--color-border);
        }
        .visual-overlay i {
            color: var(--color-accent);
            font-size: 1.3rem;
        }
        .visual-overlay span {
            color: var(--color-text-primary);
            font-weight: 600;
            font-size: 0.95rem;
        }

        @media (max-width: 768px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
        }

        /* ========== 通用段落 ========== */
        .section-space {
            padding: 4rem 0;
            background-color: var(--color-bg-primary);
        }
        .section-alt {
            background-color: var(--color-bg-secondary);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 2rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .section-head h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.3;
            margin: 0;
            letter-spacing: 0.02em;
        }
        .section-head .section-tag {
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }
        .section-head p {
            color: var(--color-text-secondary);
            margin: 0.5rem 0 0;
            max-width: 700px;
        }

        /* ========== 指标看板 ========== */
        .metrics-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .metric-item {
            padding: 1.8rem 1.5rem;
            background: var(--color-bg-card);
            border-right: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .metric-item:last-child {
            border-right: none;
        }
        .metric-item:hover {
            background: var(--color-bg-card-hover);
        }
        .metric-num {
            font-size: 2.4rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.2;
            letter-spacing: 0.02em;
            margin-bottom: 0.2rem;
        }
        .metric-num span {
            color: var(--color-accent);
            font-size: 1.5rem;
        }
        .metric-label {
            color: var(--color-text-secondary);
            font-size: 0.92rem;
        }
        @media (max-width: 768px) {
            .metrics-board {
                grid-template-columns: 1fr 1fr;
            }
            .metric-item:nth-child(2) {
                border-right: none;
            }
            .metric-item:nth-child(1),
            .metric-item:nth-child(2) {
                border-bottom: 1px solid var(--color-border);
            }
        }
        @media (max-width: 520px) {
            .metrics-board {
                grid-template-columns: 1fr;
            }
            .metric-item {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
            }
            .metric-item:last-child {
                border-bottom: none;
            }
        }

        /* ========== 服务矩阵 ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .service-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            text-decoration: none;
            color: var(--color-text-primary);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--color-accent);
            background: var(--color-bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            color: var(--color-text-primary);
        }
        .service-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }
        .service-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .service-card:hover .card-img img {
            transform: scale(1.06);
        }
        .service-card .card-body {
            padding: 1.2rem 1.3rem 1.3rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .service-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.5rem;
        }
        .service-card .card-body p {
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            margin-bottom: 1rem;
            flex: 1;
        }
        .service-link {
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .service-link i {
            transition: transform var(--transition-fast);
        }
        .service-card:hover .service-link i {
            transform: translateX(3px);
        }

        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 对比表 ========== */
        .compare-table {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        .compare-panel {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all var(--transition-fast);
        }
        .compare-panel.highlight {
            border-color: var(--color-accent);
            background: linear-gradient(135deg, rgba(215, 166, 42, 0.06), var(--color-bg-card));
            box-shadow: var(--shadow-md);
        }
        .compare-panel h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .compare-panel.highlight h3 {
            color: var(--color-accent-light);
        }
        .compare-row {
            display: flex;
            justify-content: space-between;
            gap: 1rem;
            padding: 0.8rem 0;
            border-bottom: 1px solid var(--color-border);
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .compare-row .label {
            color: var(--color-text-secondary);
        }
        .compare-row .value {
            font-weight: 600;
            color: var(--color-text-primary);
        }
        .compare-panel.highlight .compare-row .value {
            color: var(--color-accent-light);
        }
        @media (max-width: 768px) {
            .compare-table {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 时间线 ========== */
        .timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
            position: relative;
        }
        .timeline-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.2rem;
            transition: all var(--transition-fast);
        }
        .timeline-item:hover {
            border-color: var(--color-accent);
            background: var(--color-bg-card-hover);
            transform: translateY(-3px);
        }
        .timeline-year {
            color: var(--color-accent);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }
        .timeline-title {
            color: #ffffff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 0.4rem;
        }
        .timeline-desc {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .timeline {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .timeline {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 资讯列表 ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .news-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .news-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .news-card .news-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
            position: relative;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .news-card:hover .news-img img {
            transform: scale(1.05);
        }
        .news-tag {
            position: absolute;
            top: 0.8rem;
            left: 0.8rem;
            background: rgba(10, 12, 16, 0.8);
            backdrop-filter: blur(6px);
            color: var(--color-accent);
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid var(--color-accent);
        }
        .news-card .news-body {
            padding: 1.2rem 1.3rem 1.3rem;
        }
        .news-card .news-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.5rem;
            line-height: 1.4;
        }
        .news-card .news-body p {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            margin-bottom: 0.8rem;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--color-text-muted);
            font-size: 0.75rem;
        }
        @media (max-width: 1024px) {
            .news-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 平台保障 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .security-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 2rem 1.3rem;
            transition: all var(--transition-fast);
            text-align: center;
        }
        .security-card:hover {
            border-color: var(--color-accent);
            background: var(--color-bg-card-hover);
            transform: translateY(-3px);
        }
        .security-card .security-icon {
            width: 52px;
            height: 52px;
            background: rgba(215, 166, 42, 0.1);
            border: 1px solid var(--color-accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.4rem;
            margin: 0 auto 1rem;
        }
        .security-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.5rem;
        }
        .security-card p {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .security-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 快速解答 + FAQ ========== */
        .faq-wrap {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 2.5rem;
            align-items: start;
        }
        .quick-faq-title h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.5rem;
        }
        .quick-faq-title p {
            color: var(--color-text-secondary);
        }
        .faq-accordion {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.5rem;
            color: var(--color-text-primary);
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            font-size: 0.98rem;
        }
        .faq-question:hover {
            background: rgba(215, 166, 42, 0.06);
            color: var(--color-accent-light);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--color-accent);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            background: rgba(10, 12, 16, 0.4);
            border-left: 3px solid var(--color-accent);
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }
        .faq-answer p {
            padding: 1.1rem 1.5rem 1.3rem;
            color: var(--color-text-secondary);
            margin: 0;
            font-size: 0.92rem;
        }
        @media (max-width: 768px) {
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }

        /* ========== 分类入口 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .category-entry-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }
        .category-entry-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .category-entry-card img {
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-bottom: 1px solid var(--color-border);
        }
        .category-entry-body {
            padding: 1.1rem 1.3rem 1.2rem;
        }
        .category-entry-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.4rem;
        }
        .category-entry-body p {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            margin: 0;
        }
        @media (max-width: 1024px) {
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background: var(--color-bg-secondary);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 2rem;
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .brand-intro .brand-img {
            width: 240px;
            aspect-ratio: 4 / 3;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            background: #0E1116;
            flex-shrink: 0;
        }
        .brand-intro .brand-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .brand-intro .brand-text {
            flex: 1;
            min-width: 260px;
        }
        .brand-intro h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.8rem;
        }
        .brand-intro p {
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 1rem;
        }

        /* ========== 转化表单 ========== */
        .assessment-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: start;
        }
        .assessment-form {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }
        .assessment-form h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #ffffff;
            margin: 0 0 0.5rem;
        }
        .assessment-form p {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            color: var(--color-text-primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        .form-control {
            background: #10131A;
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            padding: 0.75rem 1rem;
            width: 100%;
            outline: none;
            transition: all var(--transition-fast);
        }
        .form-control:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 2px rgba(215, 166, 42, 0.2);
        }
        .assess-note {
            border-left: 3px solid var(--color-accent);
            background: rgba(215, 166, 42, 0.06);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-sm);
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .assessment-wrap {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0C0E12;
            border-top: 1px solid var(--color-border);
            padding: 4rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            margin-top: 1rem;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.3rem;
        }
        .footer-col h5 {
            color: #ffffff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 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 {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--color-border);
            color: var(--color-text-muted);
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .footer-links {
            display: flex;
            gap: 1.5rem;
        }
        .footer-links a {
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: span 2;
            }
        }
        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== 响应式与细节 ========== */
        .text-accent {
            color: var(--color-accent);
        }
        .btn-block {
            width: 100%;
            justify-content: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category3 */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
        }

        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .nav-toggle[aria-expanded="true"] {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            background: var(--color-bg-secondary);
            border-bottom: 1px solid var(--color-border);
            padding: 0.75rem 0;
        }

        .breadcrumb-section .container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .breadcrumb-section a {
            color: var(--color-text-secondary);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-section .separator {
            color: var(--color-text-muted);
            font-size: 0.8rem;
        }

        .breadcrumb-section .current {
            color: var(--color-accent);
            font-size: 0.88rem;
            font-weight: 500;
        }

        /* ========== 分类 H1 区 ========== */
        .category-hero {
            background: var(--color-bg-secondary);
            position: relative;
            padding: 4.5rem 0 3.5rem;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/dad063dcd50c0491.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 12, 16, 0.72) 0%, rgba(10, 12, 16, 0.92) 100%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            line-height: 1.3;
            margin-bottom: 1rem;
            max-width: 800px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }

        .category-hero .category-subtitle {
            font-size: 1.12rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            max-width: 720px;
            margin-bottom: 1.5rem;
        }

        .category-hero .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .category-hero .tag-group .tag-chip {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 0.82rem;
            padding: 0.3rem 1rem;
            border-radius: 999px;
            transition: all var(--transition-fast);
        }

        .category-hero .tag-group .tag-chip:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-light);
            background: rgba(215, 166, 42, 0.08);
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 4rem 0;
        }

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

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

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.1);
            padding: 0.3rem 1rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
        }

        .section-header h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.01em;
            line-height: 1.35;
            margin-bottom: 0.75rem;
        }

        .section-header .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.9;
            max-width: 720px;
        }

        /* ========== 卡片网格 ========== */
        .article-grid {
            margin-bottom: 0;
        }

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

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

        .article-card .cover-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--color-bg-elevated);
            flex-shrink: 0;
        }

        .article-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .article-card:hover .cover-wrap img {
            transform: scale(1.05);
        }

        .article-card .cover-wrap .card-badge {
            position: absolute;
            top: 0.85rem;
            left: 0.85rem;
            background: rgba(10, 12, 16, 0.85);
            border: 1px solid var(--color-border-strong);
            color: var(--color-accent-light);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.85rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(6px);
        }

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

        .article-card .card-title {
            font-size: 1.12rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.55;
            margin-bottom: 0.6rem;
            letter-spacing: 0.01em;
        }

        .article-card .card-summary {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 1.1rem;
            flex: 1;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--color-border);
            flex-wrap: wrap;
        }

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

        .article-card .card-meta .meta-info span {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            white-space: nowrap;
        }

        .article-card .read-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .article-card .read-btn:hover {
            color: var(--color-accent-light);
            gap: 0.6rem;
        }

        .view-more-wrapper {
            margin-top: 2.5rem;
            text-align: center;
        }

        .view-more-wrapper .btn-like-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-accent);
            padding: 0.7rem 1.5rem;
            border: 1px solid rgba(215, 166, 42, 0.4);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .view-more-wrapper .btn-like-link:hover {
            color: var(--color-accent-light);
            border-color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.08);
        }

        /* ========== 场景索引 ========== */
        .scene-index-grid {
            margin-top: 0.5rem;
        }

        .scene-block {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.5rem;
            transition: all var(--transition-base);
            height: 100%;
        }

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

        .scene-block .scene-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, rgba(215, 166, 42, 0.25) 0%, rgba(215, 166, 42, 0.1) 100%);
            border: 1px solid rgba(215, 166, 42, 0.3);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.15rem;
            margin-bottom: 1rem;
            transition: all var(--transition-fast);
        }

        .scene-block:hover .scene-icon {
            background: linear-gradient(135deg, rgba(215, 166, 42, 0.35) 0%, rgba(215, 166, 42, 0.15) 100%);
            border-color: var(--color-accent);
            transform: scale(1.05);
        }

        .scene-block h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.5rem;
            line-height: 1.45;
        }

        .scene-block p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== 数据/指标支撑 ========== */
        .metrics-panel {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2rem;
            box-shadow: var(--shadow-sm);
        }

        .metric-row {
            display: grid;
            grid-template-columns: 180px 1fr 100px;
            align-items: center;
            gap: 1.25rem;
            padding: 1.1rem 0;
            border-bottom: 1px solid var(--color-border);
        }

        .metric-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .metric-row:first-child {
            padding-top: 0;
        }

        .metric-row .metric-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-primary);
            letter-spacing: 0.02em;
        }

        .metric-row .metric-bar-wrap {
            background: var(--color-bg-elevated);
            border-radius: 999px;
            height: 10px;
            overflow: hidden;
            position: relative;
        }

        .metric-row .metric-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent-dark) 0%, var(--color-accent) 100%);
            border-radius: 999px;
            transition: width 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            width: 0;
        }

        .metric-row .metric-value {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-accent-light);
            text-align: right;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .metric-row .metric-comment {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            grid-column: 2 / 4;
            margin-top: -0.6rem;
            padding-bottom: 0.25rem;
        }

        /* ========== 热门文章 ========== */
        .hot-article-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.15rem;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            transition: all var(--transition-base);
            height: 100%;
        }

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

        .hot-article-item .hot-thumb {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-elevated);
        }

        .hot-article-item .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-article-item .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-article-item .hot-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.5;
            margin-bottom: 0.35rem;
            display: block;
            transition: color var(--transition-fast);
        }

        .hot-article-item .hot-title:hover {
            color: var(--color-accent-light);
        }

        .hot-article-item .hot-summary {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* ========== CTA 收尾 ========== */
        .cta-section {
            background: var(--color-bg-secondary);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/192afd6beaf78fcd.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-panel {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2.5rem;
            display: grid;
            grid-template-columns: 1fr auto;
            align-items: center;
            gap: 2rem;
            box-shadow: var(--shadow-md);
        }

        .cta-panel h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .cta-panel p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 600px;
        }

        .cta-panel .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.8rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .cta-panel .cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .cta-panel .cta-btn:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0C0E12;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 1.5rem;
        }

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

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h5 {
            font-size: 0.92rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .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: 0.86rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent-light);
            padding-left: 0.25rem;
        }

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

        .footer-bottom .copyright {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

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

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.2rem;
            }

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

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

            .metric-row {
                grid-template-columns: 140px 1fr 80px;
                gap: 1rem;
            }

            .cta-panel {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .cta-panel .cta-btn {
                margin: 0 auto;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #0C0E12;
                border-bottom: 1px solid var(--color-border);
                flex-direction: column;
                align-items: stretch;
                padding: 1rem 1.25rem;
                gap: 0.25rem;
                display: none;
                z-index: 99;
                box-shadow: var(--shadow-md);
            }

            .main-nav.is-open {
                display: flex;
            }

            .main-nav li a {
                padding: 0.7rem 1rem;
                font-size: 0.95rem;
                display: block;
                width: 100%;
            }

            .header-cta {
                display: none;
            }

            .category-hero {
                padding: 3rem 0 2.5rem;
            }

            .category-hero h1 {
                font-size: 1.9rem;
            }

            .category-hero .category-subtitle {
                font-size: 1rem;
            }

            .section {
                padding: 3rem 0;
            }

            .section-header h2 {
                font-size: 1.55rem;
            }

            .metric-row {
                grid-template-columns: 110px 1fr 60px;
                gap: 0.75rem;
                padding: 0.9rem 0;
            }

            .metric-row .metric-label {
                font-size: 0.82rem;
            }

            .metric-row .metric-value {
                font-size: 0.9rem;
            }

            .metric-row .metric-comment {
                font-size: 0.72rem;
                grid-column: 1 / 4;
                margin-top: -0.3rem;
            }

            .metrics-panel {
                padding: 1.5rem 1.25rem;
            }

            .cta-panel {
                padding: 2rem 1.5rem;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }

            .footer-bottom .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 600px) {
            .category-hero h1 {
                font-size: 1.65rem;
            }

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

            .section-header h2 {
                font-size: 1.35rem;
            }

            .card-body .card-title {
                font-size: 1rem;
            }

            .hot-article-item {
                flex-direction: row;
                align-items: flex-start;
            }

            .hot-article-item .hot-thumb {
                width: 56px;
                height: 56px;
            }

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

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

            .metric-row {
                grid-template-columns: 1fr;
                gap: 0.5rem;
                padding: 1rem 0;
            }

            .metric-row .metric-label {
                font-size: 0.88rem;
            }

            .metric-row .metric-bar-wrap {
                height: 8px;
            }

            .metric-row .metric-value {
                text-align: left;
                font-size: 0.95rem;
            }

            .metric-row .metric-comment {
                grid-column: auto;
                margin-top: 0;
            }

            .cta-panel h2 {
                font-size: 1.3rem;
            }

            .cta-panel p {
                font-size: 0.88rem;
            }
        }

        /* ========== 辅助类 ========== */
        .grid-margin-x.small-up-1 > .cell,
        .grid-margin-x.medium-up-2 > .cell,
        .grid-margin-x.large-up-3 > .cell {
            display: flex;
        }

        .grid-margin-x.small-up-1 > .cell > .article-card,
        .grid-margin-x.medium-up-2 > .cell > .article-card,
        .grid-margin-x.large-up-3 > .cell > .article-card {
            width: 100%;
        }

/* roulang page: category5 */
:root {
            --color-bg-primary: #0A0C10;
            --color-bg-secondary: #0E1116;
            --color-bg-card: #151821;
            --color-bg-card-hover: #191D26;
            --color-bg-elevated: #1E222B;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-strong: rgba(255, 255, 255, 0.14);
            --color-text-primary: #E5E7EB;
            --color-text-secondary: #9CA3AF;
            --color-text-muted: #6B7280;
            --color-accent: #D7A62A;
            --color-accent-light: #E9B949;
            --color-accent-dark: #C09322;
            --color-danger: #E64B3C;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.8;
            font-size: 1rem;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* 顶部导航 */
        .site-header {
            background-color: #0C0E12;
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            flex-wrap: nowrap;
            gap: 1rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0C0E12;
            font-size: 1.15rem;
            flex-shrink: 0;
        }

        .brand-logo span:last-child {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 400;
            margin-left: 0.25rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
        }

        .main-nav li a {
            display: block;
            padding: 0.6rem 0.85rem;
            color: var(--color-text-primary);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .main-nav li a:hover {
            color: var(--color-accent-light);
            background-color: rgba(215, 166, 42, 0.08);
        }

        .main-nav li a.active {
            color: var(--color-accent);
            background-color: rgba(215, 166, 42, 0.12);
            font-weight: 600;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

        .header-cta:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            padding: 0.5rem 0.8rem;
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle:hover {
            border-color: var(--color-border-strong);
            color: var(--color-accent-light);
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 0.75rem;
        }

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

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

        .breadcrumb .separator {
            color: var(--color-text-muted);
            font-size: 0.7rem;
            margin: 0 0.1rem;
        }

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

        /* H1 分类区 */
        .category-hero {
            background-color: var(--color-bg-secondary);
            background-image: linear-gradient(135deg, rgba(10, 12, 16, 0.92) 0%, rgba(21, 24, 33, 0.88) 60%, rgba(215, 166, 42, 0.06) 100%), url('/assets/images/d6bc63f1aa22ee3f.webp');
            background-size: cover;
            background-position: center;
            padding: 4rem 0 3.5rem;
            border-bottom: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
            opacity: 0.6;
        }

        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #ffffff;
            margin-top: 0.5rem;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .category-hero .hero-subtitle {
            font-size: 1.08rem;
            color: var(--color-text-secondary);
            max-width: 780px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1.25rem;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(215, 166, 42, 0.12);
            border: 1px solid rgba(215, 166, 42, 0.25);
            color: var(--color-accent-light);
            font-size: 0.8rem;
            padding: 0.35rem 0.9rem;
            border-radius: 999px;
            font-weight: 500;
        }

        /* Section 通用 */
        .section {
            padding: 4.5rem 0;
        }

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

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .section-subtitle {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }

        /* 卡片通用 */
        .card-review {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .card-review .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-bg-elevated);
        }

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

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

        .card-review .card-cover .card-badge {
            position: absolute;
            top: 0.85rem;
            left: 0.85rem;
            background: rgba(10, 12, 16, 0.82);
            border: 1px solid rgba(215, 166, 42, 0.3);
            color: var(--color-accent-light);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }

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

        .card-review .card-title {
            font-size: 1.12rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.55rem;
            line-height: 1.5;
            letter-spacing: -0.01em;
        }

        .card-review .card-summary {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 1rem;
            flex: 1;
        }

        .card-review .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            padding-top: 0.75rem;
            border-top: 1px solid var(--color-border);
            margin-bottom: 1rem;
        }

        .card-review .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .card-review .card-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.88rem;
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .card-review .card-btn:hover {
            color: var(--color-accent-light);
            gap: 0.7rem;
        }

        /* 场景索引 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .scene-item {
            background: rgba(30, 34, 43, 0.55);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.25rem;
            transition: all var(--transition-base);
        }

        .scene-item:hover {
            background: var(--color-bg-card-hover);
            border-color: var(--color-border-strong);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .scene-item .scene-icon {
            width: 42px;
            height: 42px;
            background: rgba(215, 166, 42, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-light);
            font-size: 1.15rem;
            margin-bottom: 1rem;
        }

        .scene-item h4 {
            font-size: 1.02rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.45rem;
        }

        .scene-item p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* 数据指标 */
        .metrics-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .metric-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1.5rem;
        }

        .metric-item .metric-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .metric-item .metric-value {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--color-accent-light);
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }

        .metric-item .metric-bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 999px;
            overflow: hidden;
            margin-bottom: 0.6rem;
        }

        .metric-item .metric-bar .bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            border-radius: 999px;
            transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            width: 0;
        }

        .metric-item .metric-note {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* 热门文章 */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .hot-card {
            display: flex;
            gap: 1rem;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 1rem;
            transition: all var(--transition-base);
        }

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

        .hot-card .hot-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-elevated);
        }

        .hot-card .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-card .hot-info {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .hot-card .hot-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.5;
            margin-bottom: 0.3rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .hot-card .hot-summary {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 测评标准 */
        .standard-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
            margin-top: 0.5rem;
        }

        .standard-item {
            background: rgba(30, 34, 43, 0.5);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 1.25rem 1.1rem;
            text-align: left;
        }

        .standard-item .std-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 0.35rem;
            letter-spacing: -0.02em;
        }

        .standard-item h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 0.4rem;
        }

        .standard-item p {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background-color: var(--color-bg-secondary);
            background-image: linear-gradient(135deg, rgba(10, 12, 16, 0.94) 0%, rgba(21, 24, 33, 0.9) 100%), url('/assets/images/4b7c78114fd481c3.webp');
            background-size: cover;
            background-position: center;
            padding: 4rem 0;
            border-top: 1px solid rgba(215, 166, 42, 0.15);
            border-bottom: 1px solid rgba(215, 166, 42, 0.15);
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2.5rem;
            flex-wrap: wrap;
        }

        .cta-text {
            flex: 1;
            min-width: 260px;
        }

        .cta-text h2 {
            font-size: 1.65rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.6rem;
            letter-spacing: -0.01em;
        }

        .cta-text p {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #0C0E12;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            color: #0C0E12;
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-primary:focus {
            outline: 2px solid #ffffff;
            outline-offset: 2px;
        }

        /* 页脚 */
        .site-footer {
            background-color: #0C0E12;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 1.5rem;
            color: var(--color-text-secondary);
        }

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

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .footer-brand .footer-logo span:last-child {
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 320px;
            margin: 0;
        }

        .footer-col h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 1rem;
            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: 0.83rem;
            color: #9CA3AF;
            transition: color var(--transition-fast);
        }

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

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

        .footer-bottom .copyright {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

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

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

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

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

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

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

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

        @media (max-width: 768px) {
            .nav-toggle {
                display: inline-flex;
            }

            .site-header .container {
                flex-wrap: wrap;
                padding-top: 0.75rem;
                padding-bottom: 0.75rem;
            }

            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding-top: 0.75rem;
                border-top: 1px solid var(--color-border);
                margin-top: 0.75rem;
            }

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

            .main-nav li a {
                padding: 0.7rem 0.75rem;
                font-size: 0.95rem;
            }

            .header-cta {
                display: none;
            }

            .category-hero {
                padding: 3rem 0 2.5rem;
            }

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

            .section {
                padding: 3rem 0;
            }

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

            .metrics-container {
                grid-template-columns: 1fr;
            }

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

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

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

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

            .category-hero h1 {
                font-size: 1.55rem;
            }

            .card-review .card-body {
                padding: 1.25rem 1.1rem;
            }

            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

/* roulang page: category6 */
:root {
        --color-bg-primary: #0A0C10;
        --color-bg-secondary: #0E1116;
        --color-bg-card: #151821;
        --color-bg-card-hover: #191D26;
        --color-bg-elevated: #1E222B;
        --color-border: rgba(255, 255, 255, 0.08);
        --color-border-strong: rgba(255, 255, 255, 0.14);
        --color-text-primary: #E5E7EB;
        --color-text-secondary: #9CA3AF;
        --color-text-muted: #6B7280;
        --color-accent: #D7A62A;
        --color-accent-light: #E9B949;
        --color-accent-dark: #C09322;
        --color-danger: #E64B3C;
        --radius-sm: 6px;
        --radius-md: 10px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
        --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.28);
        --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.38);
        --transition-fast: 0.18s ease;
        --transition-base: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    }

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

    body {
        font-family: var(--font-sans);
        background-color: var(--color-bg-primary);
        color: var(--color-text-primary);
        line-height: 1.8;
        font-size: 1rem;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        margin: 0;
    }

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

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border: 0;
    }

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

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

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

    button {
        cursor: pointer;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        color: var(--color-text-primary);
        margin-top: 0;
        font-weight: 700;
        line-height: 1.35;
        letter-spacing: 0.01em;
    }

    h1 {
        font-size: 2.4rem;
        margin-bottom: 1.25rem;
    }

    h2 {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }

    h3 {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }

    p {
        margin-bottom: 1em;
        color: var(--color-text-secondary);
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .container-wide {
        max-width: 1320px;
        margin: 0 auto;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* 顶部导航 */
    .site-header {
        background-color: #0C0E12;
        border-bottom: 1px solid var(--color-border);
        position: sticky;
        top: 0;
        z-index: 100;
        min-height: 72px;
        display: flex;
        align-items: center;
    }

    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        flex-wrap: nowrap;
        gap: 1rem;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        color: #ffffff;
        font-weight: 700;
        font-size: 1.35rem;
        letter-spacing: 0.02em;
        white-space: nowrap;
    }

    .brand-logo .logo-icon {
        width: 40px;
        height: 40px;
        background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #0C0E12;
        font-size: 1.15rem;
        flex-shrink: 0;
    }

    .brand-logo span:last-child {
        color: var(--color-text-secondary);
        font-size: 0.85rem;
        font-weight: 400;
        margin-left: 0.25rem;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 0.25rem;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .main-nav li a {
        display: block;
        padding: 0.6rem 0.85rem;
        color: var(--color-text-primary);
        font-size: 0.92rem;
        font-weight: 500;
        letter-spacing: 0.02em;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        white-space: nowrap;
    }

    .main-nav li a:hover {
        color: var(--color-accent-light);
        background-color: rgba(215, 166, 42, 0.08);
    }

    .main-nav li a.active {
        color: var(--color-accent);
        background-color: rgba(215, 166, 42, 0.12);
        font-weight: 600;
    }

    .header-cta {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
        color: #0C0E12;
        font-weight: 600;
        font-size: 0.9rem;
        padding: 0.55rem 1.35rem;
        border-radius: var(--radius-sm);
        border: none;
        transition: all var(--transition-fast);
        white-space: nowrap;
        flex-shrink: 0;
    }

    .header-cta:hover {
        background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
        color: #0C0E12;
        box-shadow: var(--shadow-sm);
        transform: translateY(-1px);
    }

    .header-cta:active {
        transform: translateY(1px);
        box-shadow: none;
    }

    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-sm);
        color: var(--color-text-primary);
        font-size: 1.25rem;
        padding: 0.5rem 0.75rem;
        transition: all var(--transition-fast);
    }

    .nav-toggle:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
    }

    /* 面包屑 */
    .breadcrumb-bar {
        background-color: rgba(10, 12, 16, 0.55);
        border-bottom: 1px solid var(--color-border);
        padding: 0.7rem 0;
        font-size: 0.85rem;
    }

    .breadcrumb-bar .container {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex-wrap: wrap;
    }

    .breadcrumb-bar span,
    .breadcrumb-bar a {
        color: var(--color-text-muted);
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
    }

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

    .breadcrumb-bar .separator {
        color: var(--color-text-muted);
        opacity: 0.6;
    }

    .breadcrumb-bar .current {
        color: var(--color-accent);
        font-weight: 600;
    }

    /* H1 区 */
    .category-h1-section {
        background-image: linear-gradient(135deg, rgba(10, 12, 16, 0.92) 35%, rgba(14, 17, 22, 0.88) 65%), url('/assets/images/8daeffc559140d7e.webp');
        background-size: cover;
        background-position: center;
        position: relative;
        padding: 5rem 0 4rem;
        border-bottom: 1px solid var(--color-border);
    }

    .category-h1-section::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at 70% 35%, rgba(215, 166, 42, 0.09), transparent 46%);
        pointer-events: none;
    }

    .category-h1-section .container {
        position: relative;
        z-index: 1;
    }

    .category-h1-section h1 {
        font-size: 2.8rem;
        font-weight: 800;
        letter-spacing: 0.01em;
        color: #ffffff;
        margin-bottom: 1.2rem;
        max-width: 900px;
        line-height: 1.2;
    }

    .category-h1-section .h1-highlight {
        color: var(--color-accent-light);
        font-weight: 800;
    }

    .category-h1-section .lead {
        font-size: 1.1rem;
        color: var(--color-text-secondary);
        max-width: 760px;
        line-height: 1.9;
        margin-bottom: 0.5rem;
    }

    .category-h1-section .h1-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 0.75rem 1.5rem;
        margin-top: 1.5rem;
        font-size: 0.9rem;
        color: var(--color-text-muted);
    }

    .category-h1-section .h1-meta i {
        color: var(--color-accent);
        margin-right: 0.35rem;
    }

    /* section 通用 */
    .section-block {
        padding: 4.5rem 0;
    }

    .section-block.alt-bg {
        background-color: var(--color-bg-secondary);
    }

    .section-block.dark-bg {
        background-color: #0A0C10;
    }

    .section-heading {
        margin-bottom: 2.5rem;
    }

    .section-heading .eyebrow {
        display: inline-block;
        background: rgba(215, 166, 42, 0.12);
        color: var(--color-accent);
        font-size: 0.8rem;
        font-weight: 600;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        padding: 0.3rem 0.85rem;
        border-radius: 999px;
        margin-bottom: 1rem;
        border: 1px solid rgba(215, 166, 42, 0.2);
    }

    .section-heading h2 {
        font-size: 1.9rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 0.5rem;
    }

    .section-heading .heading-desc {
        font-size: 1rem;
        color: var(--color-text-secondary);
        max-width: 680px;
        line-height: 1.85;
        margin-bottom: 0;
    }

    .section-heading.center {
        text-align: center;
    }

    .section-heading.center .heading-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

    .article-card {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-sm);
        display: flex;
        flex-direction: column;
    }

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

    .article-card .card-cover {
        aspect-ratio: 16/9;
        overflow: hidden;
        position: relative;
        background: var(--color-bg-elevated);
    }

    .article-card .card-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.45s ease;
    }

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

    .article-card .card-cover .cover-badge {
        position: absolute;
        top: 0.8rem;
        left: 0.8rem;
        background: rgba(10, 12, 16, 0.85);
        color: var(--color-accent-light);
        font-size: 0.72rem;
        font-weight: 600;
        padding: 0.3rem 0.7rem;
        border-radius: 999px;
        letter-spacing: 0.04em;
        border: 1px solid rgba(215, 166, 42, 0.3);
        backdrop-filter: blur(4px);
    }

    .article-card .card-body {
        padding: 1.4rem 1.5rem 1.25rem;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .article-card .card-body h3 {
        font-size: 1.15rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 0.6rem;
        line-height: 1.45;
    }

    .article-card .card-body h3 a {
        color: #ffffff;
        transition: color var(--transition-fast);
    }

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

    .article-card .card-summary {
        font-size: 0.9rem;
        color: var(--color-text-secondary);
        line-height: 1.75;
        margin-bottom: 1.25rem;
        flex: 1;
    }

    .article-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
        font-size: 0.78rem;
        color: var(--color-text-muted);
        border-top: 1px solid var(--color-border);
        padding-top: 1rem;
    }

    .article-card .card-meta .meta-left {
        display: flex;
        align-items: center;
        gap: 0.55rem;
    }

    .article-card .card-meta i {
        color: var(--color-accent);
        font-size: 0.72rem;
    }

    .article-card .read-more {
        color: var(--color-accent);
        font-weight: 600;
        font-size: 0.8rem;
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        white-space: nowrap;
        transition: all var(--transition-fast);
    }

    .article-card .read-more:hover {
        color: var(--color-accent-light);
        gap: 0.5rem;
    }

    /* 场景索引 */
    .scene-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.25rem;
    }

    .scene-item {
        background: rgba(21, 24, 33, 0.7);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 1.5rem 1.25rem;
        transition: all var(--transition-base);
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
    }

    .scene-item:hover {
        background: var(--color-bg-card);
        border-color: var(--color-border-strong);
        transform: translateY(-3px);
        box-shadow: var(--shadow-sm);
    }

    .scene-item .scene-icon {
        width: 42px;
        height: 42px;
        background: rgba(215, 166, 42, 0.12);
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--color-accent);
        font-size: 1.1rem;
        margin-bottom: 0.25rem;
    }

    .scene-item h3 {
        font-size: 1.05rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 0;
    }

    .scene-item p {
        font-size: 0.85rem;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin-bottom: 0;
    }

    /* 数据指标条 */
    .metric-bars {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 2rem 2.25rem;
    }

    .metric-row {
        display: flex;
        align-items: center;
        gap: 1.5rem;
        flex-wrap: wrap;
    }

    .metric-label {
        flex: 0 0 160px;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--color-text-primary);
    }

    .metric-track {
        flex: 1;
        min-width: 200px;
        height: 10px;
        background: rgba(255, 255, 255, 0.06);
        border-radius: 999px;
        overflow: hidden;
    }

    .metric-fill {
        height: 100%;
        background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent-light));
        border-radius: 999px;
        transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .metric-value {
        flex: 0 0 70px;
        text-align: right;
        font-size: 1rem;
        font-weight: 700;
        color: var(--color-accent-light);
    }

    .metric-comment {
        flex: 0 0 100%;
        font-size: 0.78rem;
        color: var(--color-text-muted);
        padding-left: 178px;
        margin-top: -0.75rem;
    }

    /* 热门文章 */
    .hot-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .hot-item {
        display: flex;
        gap: 1rem;
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 1.1rem;
        transition: all var(--transition-base);
        align-items: flex-start;
    }

    .hot-item:hover {
        background: var(--color-bg-card-hover);
        border-color: var(--color-border-strong);
        box-shadow: var(--shadow-sm);
        transform: translateY(-2px);
    }

    .hot-item .hot-thumb {
        flex: 0 0 80px;
        width: 80px;
        height: 60px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        background: var(--color-bg-elevated);
    }

    .hot-item .hot-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

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

    .hot-item .hot-content h4 {
        font-size: 0.95rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 0.35rem;
        line-height: 1.45;
    }

    .hot-item .hot-content h4 a {
        color: #ffffff;
        transition: color var(--transition-fast);
    }

    .hot-item .hot-content h4 a:hover {
        color: var(--color-accent-light);
    }

    .hot-item .hot-content p {
        font-size: 0.8rem;
        color: var(--color-text-muted);
        margin-bottom: 0;
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* 单 CTA */
    .single-cta-section {
        padding: 4rem 0;
        background: linear-gradient(135deg, rgba(215, 166, 42, 0.08) 0%, rgba(10, 12, 16, 0.95) 60%), var(--color-bg-secondary);
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
    }

    .cta-card {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border-strong);
        border-radius: var(--radius-lg);
        padding: 2.5rem 2.25rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
        flex-wrap: wrap;
        box-shadow: var(--shadow-md);
    }

    .cta-card .cta-text h2 {
        font-size: 1.6rem;
        color: #ffffff;
        margin-bottom: 0.5rem;
    }

    .cta-card .cta-text p {
        font-size: 0.95rem;
        color: var(--color-text-secondary);
        margin-bottom: 0;
        max-width: 500px;
    }

    .cta-card .btn-gold {
        background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
        color: #0C0E12;
        font-weight: 700;
        font-size: 0.95rem;
        padding: 0.85rem 2rem;
        border-radius: var(--radius-sm);
        border: none;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        transition: all var(--transition-fast);
        white-space: nowrap;
    }

    .cta-card .btn-gold:hover {
        background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
    }

    .cta-card .btn-gold:active {
        transform: translateY(1px);
        box-shadow: none;
    }

    /* 页脚 */
    .site-footer {
        background-color: #0C0E12;
        border-top: 1px solid var(--color-border);
        padding: 3.5rem 0 2rem;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
        gap: 2rem;
        margin-bottom: 2.5rem;
    }

    .footer-brand p {
        font-size: 0.85rem;
        color: var(--color-text-muted);
        line-height: 1.8;
        margin-top: 1rem;
        max-width: 280px;
        margin-bottom: 0;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 0.65rem;
        font-weight: 700;
        font-size: 1.2rem;
        color: #ffffff;
    }

    .footer-col h5 {
        font-size: 0.85rem;
        font-weight: 700;
        color: #ffffff;
        letter-spacing: 0.04em;
        text-transform: uppercase;
        margin-bottom: 1.1rem;
    }

    .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: 0.85rem;
        color: var(--color-text-muted);
        transition: color var(--transition-fast);
    }

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

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

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

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

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

    /* 按钮 focus 可访问性 */
    .btn-gold:focus,
    .header-cta:focus,
    .nav-toggle:focus,
    .article-card .read-more:focus {
        outline: 2px solid #ffffff;
        outline-offset: 2px;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
        .card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .scene-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .hot-list {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
        .category-h1-section h1 {
            font-size: 2.3rem;
        }
    }

    @media (max-width: 768px) {
        .site-header .container {
            flex-wrap: wrap;
            min-height: 64px;
        }
        .brand-logo {
            font-size: 1.15rem;
        }
        .brand-logo span:last-child {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .main-nav {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: #0C0E12;
            flex-direction: column;
            gap: 0.25rem;
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            z-index: 99;
        }
        .main-nav.open {
            display: flex;
        }
        .main-nav li a {
            padding: 0.75rem 1rem;
            width: 100%;
        }
        .header-cta {
            padding: 0.5rem 1rem;
            font-size: 0.8rem;
        }
        .card-grid {
            grid-template-columns: 1fr;
        }
        .scene-grid {
            grid-template-columns: 1fr;
        }
        .hot-list {
            grid-template-columns: 1fr;
        }
        .metric-label {
            flex-basis: 100%;
        }
        .metric-comment {
            padding-left: 0;
            margin-top: 0;
        }
        .metric-row {
            gap: 0.75rem;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
        .category-h1-section {
            padding: 3.5rem 0 3rem;
        }
        .category-h1-section h1 {
            font-size: 1.9rem;
        }
        .section-block {
            padding: 3rem 0;
        }
        .cta-card {
            padding: 1.75rem 1.5rem;
            flex-direction: column;
            text-align: center;
        }
        .cta-card .cta-text p {
            max-width: 100%;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding-left: 1rem;
            padding-right: 1rem;
        }
        .category-h1-section h1 {
            font-size: 1.6rem;
        }
        .category-h1-section .lead {
            font-size: 0.95rem;
        }
        .section-heading h2 {
            font-size: 1.5rem;
        }
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .footer-links {
            justify-content: center;
        }
        .breadcrumb-bar {
            font-size: 0.75rem;
        }
        .brand-logo {
            font-size: 1rem;
        }
        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.9rem;
        }
        .hot-item {
            flex-direction: column;
        }
        .hot-item .hot-thumb {
            width: 100%;
            flex-basis: auto;
            height: 140px;
        }
    }