/* roulang page: index */
:root {
            --color-bg-dark: #201B16;
            --color-bg-dark-secondary: #33271D;
            --color-bg-light: #F7F2E9;
            --color-bg-light-secondary: #F5F0E8;
            --color-accent-orange: #FF5A1F;
            --color-accent-orange-hover: #FF7A45;
            --color-gold: #E7B53B;
            --color-text-dark: #2A241E;
            --color-text-light: #F5F0E8;
            --color-text-muted-dark: rgba(245, 240, 232, 0.72);
            --color-text-muted-light: rgba(42, 36, 30, 0.68);
            --color-success: #3CB371;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-light: rgba(42, 36, 30, 0.10);
            --color-border-focus: #E7B53B;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --radius-xl: 8px;
            --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
            --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
            --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --nav-width: 268px;
            --content-gap: 36px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --section-gap-home: 88px;
            --section-gap-inner: 56px;
            --container-max: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.72;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        :focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }

        /* ============ 左侧竖向导航 ============ */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
        }

        .site-nav .brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }

        .site-nav .brand a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-nav .brand a .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.02em;
        }

        .site-nav .nav-scroll {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
        }

        .site-nav .nav-label {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-text-muted-dark);
            padding: 0 10px;
            margin-bottom: 8px;
            margin-top: 8px;
        }

        .site-nav .nav-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .site-nav .nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
            position: relative;
        }

        .site-nav .nav-list a .nav-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted-dark);
            min-width: 18px;
            letter-spacing: 0.04em;
        }

        .site-nav .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }

        .site-nav .nav-list a.active {
            background: rgba(255, 90, 31, 0.12);
            border-left-color: var(--color-accent-orange);
            color: var(--color-text-light);
            font-weight: 600;
        }

        .site-nav .nav-list a.active .nav-index {
            color: var(--color-accent-orange);
        }

        .site-nav .nav-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--color-border-dark);
            flex-shrink: 0;
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .site-nav .nav-footer .nav-cta {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent-orange);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-nav .nav-footer .nav-contact {
            font-size: 0.72rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 主内容区域 ============ */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ 移动端顶部导航 ============ */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 14px 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
            align-items: center;
            justify-content: space-between;
        }

        .mobile-nav .brand a {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-nav .brand a .brand-mark {
            display: inline-block;
            width: 24px;
            height: 24px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.72rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-nav .hamburger {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 4px;
            cursor: pointer;
            background: transparent;
            border: none;
        }

        .mobile-nav .hamburger span {
            display: block;
            width: 22px;
            height: 2.5px;
            background: var(--color-text-light);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-nav .hamburger.open span:nth-child(1) {
            transform: translateY(6.5px) rotate(45deg);
        }
        .mobile-nav .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-nav .hamburger.open span:nth-child(3) {
            transform: translateY(-6.5px) rotate(-45deg);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-bg-dark);
            z-index: 998;
            padding: 20px;
            overflow-y: auto;
            flex-direction: column;
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel .nav-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-panel .nav-list a {
            padding: 14px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-nav-panel .nav-list a.active {
            border-left-color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.12);
            color: var(--color-text-light);
        }
        .mobile-nav-panel .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }

        .mobile-nav-panel .nav-footer-info {
            margin-top: auto;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-dark);
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            min-height: 520px;
            overflow: hidden;
            display: flex;
            align-items: stretch;
        }

        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            opacity: 0.55;
        }

        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg,
                    rgba(32, 27, 22, 0.96) 0%,
                    rgba(32, 27, 22, 0.82) 35%,
                    rgba(32, 27, 22, 0.55) 70%,
                    rgba(32, 27, 22, 0.45) 100%);
        }

        .hero-section .hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 56px 32px 48px;
            display: flex;
            flex-direction: column;
        }

        .hero-profile-row {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-avatar {
            width: 76px;
            height: 76px;
            border-radius: var(--radius-lg);
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.04em;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
            flex-shrink: 0;
        }

        .hero-profile-info {
            flex: 1;
            min-width: 200px;
        }

        .hero-profile-info .hero-name {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            letter-spacing: -0.01em;
        }

        .hero-profile-info .hero-name .verified-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-gold);
            background: rgba(231, 181, 59, 0.15);
            padding: 4px 10px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(231, 181, 59, 0.35);
            letter-spacing: 0.03em;
        }

        .hero-profile-info .hero-tagline {
            font-size: 0.92rem;
            color: var(--color-text-muted-dark);
            margin-top: 6px;
            line-height: 1.6;
        }

        .hero-stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin: 20px 0 28px;
        }

        .hero-stat-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 14px 20px;
            min-width: 110px;
            text-align: left;
        }

        .hero-stat-item .stat-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .hero-stat-item .stat-label {
            font-size: 0.72rem;
            color: var(--color-text-muted-dark);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.88rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            box-shadow: var(--shadow-hard-sm);
        }

        .btn-primary:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-hard-sm);
        }

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

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

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

        .btn-outline-light {
            background: transparent;
            color: var(--color-text-light);
            border: 1px solid var(--color-border-dark);
        }

        .btn-outline-light:hover {
            background: rgba(255, 90, 31, 0.15);
            border-color: var(--color-accent-orange);
            transform: translateY(-2px);
        }

        .hero-intro-text {
            margin-top: 18px;
            max-width: 600px;
            font-size: 0.92rem;
            color: var(--color-text-muted-dark);
            line-height: 1.75;
        }

        /* ============ 通用section样式 ============ */
        .home-section {
            padding: var(--section-gap-home) 0;
        }

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

        .home-section.soft-bg {
            background: var(--color-bg-light-secondary);
        }

        .home-section.dark-bg {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-accent-orange);
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.25;
            color: inherit;
            letter-spacing: -0.01em;
        }

        .section-header .section-desc {
            font-size: 0.92rem;
            color: var(--color-text-muted-light);
            max-width: 680px;
            margin-top: 12px;
            line-height: 1.7;
        }

        .dark-bg .section-header .section-desc {
            color: var(--color-text-muted-dark);
        }

        /* ============ 痛点区块 ============ */
        .pain-points-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: start;
        }

        .pain-number {
            font-size: 5rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1;
            opacity: 0.85;
            letter-spacing: -0.04em;
        }

        .pain-card {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            box-shadow: var(--shadow-hard-sm);
            transition: all var(--transition-normal);
            border-left: 5px solid var(--color-accent-orange);
        }

        .pain-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .pain-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text-dark);
            letter-spacing: -0.01em;
        }

        .pain-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
        }

        .pain-card .pain-metric {
            display: inline-block;
            margin-top: 12px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.08);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
        }

        /* ============ 步骤三连 ============ */
        .steps-trio {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-hard-sm);
            transition: all var(--transition-normal);
            counter-increment: step-counter;
        }

        .step-item::before {
            content: counter(step-counter, decimal-leading-zero);
            font-size: 3rem;
            font-weight: 800;
            color: rgba(255, 90, 31, 0.18);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
            letter-spacing: -0.04em;
        }

        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-item .step-icon {
            width: 44px;
            height: 44px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-dark);
        }

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

        /* ============ 数据指标区 ============ */
        .data-kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .kpi-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            text-align: left;
            transition: all var(--transition-normal);
        }

        .kpi-card:hover {
            background: rgba(255, 90, 31, 0.1);
            border-color: rgba(255, 90, 31, 0.4);
        }

        .kpi-card .kpi-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
            letter-spacing: -0.03em;
        }

        .kpi-card .kpi-label {
            font-size: 0.8rem;
            color: var(--color-text-muted-dark);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        .kpi-card .kpi-trend {
            font-size: 0.72rem;
            color: var(--color-success);
            margin-top: 4px;
            font-weight: 600;
        }

        /* ============ 用户评价 ============ */
        .testimonial-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            box-shadow: var(--shadow-hard-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .testimonial-card .testimonial-rating {
            color: var(--color-gold);
            font-size: 0.85rem;
            letter-spacing: 0.1em;
        }

        .testimonial-card .testimonial-text {
            font-size: 0.88rem;
            color: var(--color-text-dark);
            line-height: 1.7;
            flex: 1;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.78rem;
            color: var(--color-text-muted-light);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }

        .testimonial-card .testimonial-author .author-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-bg-dark-secondary);
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .testimonial-summary {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .testimonial-summary .summary-score {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-orange);
        }

        .testimonial-summary .summary-label {
            font-size: 0.85rem;
            color: var(--color-text-muted-dark);
        }

        /* ============ 资讯动态 ============ */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-fast);
            border-left: 4px solid transparent;
            cursor: pointer;
            margin-bottom: 10px;
        }

        .news-list-item:hover {
            border-left-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-sm);
            transform: translateX(4px);
        }

        .news-list-item .news-date {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--color-text-muted-light);
            min-width: 52px;
            letter-spacing: 0.04em;
        }

        .news-list-item .news-content {
            flex: 1;
        }

        .news-list-item .news-content h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 4px;
        }

        .news-list-item .news-content p {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            line-height: 1.6;
        }

        .news-sidebar {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 24px;
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-sidebar h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.02em;
        }

        .news-sidebar .sidebar-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            transition: all var(--transition-fast);
        }

        .news-sidebar .sidebar-card:hover {
            background: rgba(255, 90, 31, 0.12);
            border-color: rgba(255, 90, 31, 0.35);
        }

        .news-sidebar .sidebar-card h5 {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 4px;
        }

        .news-sidebar .sidebar-card p {
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
            line-height: 1.5;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 820px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-hard-sm);
        }

        .faq-item.open {
            border-left: 4px solid var(--color-accent-orange);
        }

        .faq-question {
            padding: 16px 20px;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--color-text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(255, 90, 31, 0.05);
        }

        .faq-question .faq-icon {
            font-size: 1.1rem;
            color: var(--color-accent-orange);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
        }

        /* ============ 品牌介绍 ============ */
        .brand-intro-block {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-xl);
            padding: 32px 36px;
            box-shadow: var(--shadow-hard-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }

        .brand-intro-block .brand-intro-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text-dark);
        }

        .brand-intro-block .brand-intro-text p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.75;
        }

        .brand-intro-block .brand-intro-visual {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 24px;
            color: var(--color-text-light);
            min-height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            letter-spacing: 0.04em;
            background-image: url('/assets/images/coverpic/cover-4.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .brand-intro-block .brand-intro-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(32, 27, 22, 0.72);
            border-radius: var(--radius-lg);
        }

        .brand-intro-block .brand-intro-visual span {
            position: relative;
            z-index: 2;
            color: var(--color-gold);
        }

        /* ============ 合作伙伴标签 ============ */
        .partner-tags-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .partner-tag {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-hard-sm);
        }

        .partner-tag:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 31, 0.35);
        }

        .partner-tag .partner-icon {
            width: 40px;
            height: 40px;
            background: var(--color-bg-dark-secondary);
            color: var(--color-gold);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .partner-tag .partner-info h5 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 2px;
        }

        .partner-tag .partner-info p {
            font-size: 0.75rem;
            color: var(--color-text-muted-light);
            line-height: 1.5;
        }

        /* ============ CTA ============ */
        .cta-section-inner {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-hard-lg);
        }

        .cta-section-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(32, 27, 22, 0.88);
            border-radius: var(--radius-xl);
        }

        .cta-section-inner>* {
            position: relative;
            z-index: 2;
        }

        .cta-section-inner h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section-inner p {
            font-size: 0.92rem;
            color: var(--color-text-muted-dark);
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-section-inner .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-muted-dark);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand h4 {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.7;
            color: var(--color-text-muted-dark);
        }

        .site-footer .footer-col h5 {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .site-footer .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer .footer-col ul a {
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.72rem;
        }

        .site-footer .footer-bottom a {
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }

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

        .back-to-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .back-to-top:hover {
            color: var(--color-accent-orange);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            .data-kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-wall {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-tags-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .brand-intro-block {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 1024px) {
            .site-nav {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .steps-trio {
                grid-template-columns: 1fr;
            }
            .pain-points-grid {
                grid-template-columns: 1fr;
            }
            .hero-section {
                min-height: 440px;
            }
            .hero-profile-row {
                flex-direction: column;
                gap: 16px;
            }
            .hero-stats-row {
                gap: 12px;
            }
            .hero-stat-item {
                padding: 10px 14px;
                min-width: 90px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.2rem;
            }
            .section-gap-home {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .testimonial-wall {
                grid-template-columns: 1fr;
            }
            .partner-tags-grid {
                grid-template-columns: 1fr;
            }
            .data-kpi-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section .hero-inner {
                padding: 32px 16px 32px;
            }
            .hero-profile-info .hero-name {
                font-size: 1.5rem;
            }
            .hero-avatar {
                width: 56px;
                height: 56px;
                font-size: 1.4rem;
            }
            .hero-intro-text {
                font-size: 0.85rem;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .brand-intro-block {
                padding: 20px;
            }
            .cta-section-inner {
                padding: 32px 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .hero-stats-row {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .hero-stat-item {
                padding: 8px 12px;
                min-width: 0;
            }
            .hero-stat-item .stat-number {
                font-size: 1rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.8rem;
            }
            .news-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 14px 16px;
            }
            .data-kpi-grid {
                grid-template-columns: 1fr;
            }
            .kpi-card .kpi-number {
                font-size: 1.6rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg-dark: #201B16;
            --color-bg-dark-secondary: #33271D;
            --color-bg-light: #F7F2E9;
            --color-bg-light-secondary: #F5F0E8;
            --color-accent-orange: #FF5A1F;
            --color-accent-orange-hover: #FF7A45;
            --color-gold: #E7B53B;
            --color-text-dark: #2A241E;
            --color-text-light: #F5F0E8;
            --color-text-muted-dark: rgba(245, 240, 232, 0.72);
            --color-text-muted-light: rgba(42, 36, 30, 0.68);
            --color-success: #3CB371;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-light: rgba(42, 36, 30, 0.10);
            --color-border-focus: #E7B53B;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --radius-xl: 8px;
            --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
            --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
            --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --nav-width: 268px;
            --content-gap: 36px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --section-gap-home: 88px;
            --section-gap-inner: 56px;
            --container-max: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.72;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ 左侧竖向导航 ============ */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
        }

        .site-nav .brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }

        .site-nav .brand a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-nav .brand a .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

        .site-nav .nav-scroll {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
        }

        .site-nav .nav-label {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-text-muted-dark);
            padding: 0 10px;
            margin-bottom: 8px;
            margin-top: 8px;
        }

        .site-nav .nav-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .site-nav .nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
            position: relative;
        }

        .site-nav .nav-list a .nav-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted-dark);
            min-width: 18px;
            letter-spacing: 0.04em;
            transition: color var(--transition-fast);
        }

        .site-nav .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }

        .site-nav .nav-list a:hover .nav-index {
            color: var(--color-accent-orange);
        }

        .site-nav .nav-list a.active {
            background: rgba(255, 90, 31, 0.12);
            border-left-color: var(--color-accent-orange);
            color: var(--color-text-light);
            font-weight: 600;
        }

        .site-nav .nav-list a.active .nav-index {
            color: var(--color-accent-orange);
        }

        .site-nav .nav-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--color-border-dark);
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
        }

        .site-nav .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--color-gold);
            font-size: 0.8rem;
        }

        .site-nav .nav-contact {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
            word-break: break-all;
        }

        /* ============ 移动端顶部导航 ============ */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--color-bg-dark);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
        }

        .mobile-nav-toggle .mobile-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-light);
            font-weight: 800;
            font-size: 1.1rem;
        }

        .mobile-nav-toggle .mobile-brand .brand-mark {
            display: inline-block;
            width: 26px;
            height: 26px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 800;
        }

        .mobile-nav-toggle .hamburger {
            width: 36px;
            height: 36px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
        }

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

        .mobile-nav-toggle .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text-light);
            border-radius: 1px;
            transition: transform var(--transition-normal), opacity var(--transition-normal);
        }

        .mobile-nav-toggle .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .mobile-nav-toggle .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .site-nav.mobile-open {
            transform: translateX(0);
        }

        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .nav-overlay.active {
            opacity: 1;
        }

        /* ============ 主体内容区 ============ */
        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .content-area {
            flex: 1;
            padding: 0 32px;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb {
            padding: 20px 0 8px;
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            opacity: 0.5;
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--color-text-dark);
            font-weight: 600;
        }

        /* ============ 分类 Hero ============ */
        .category-hero {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin-bottom: 28px;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background: var(--color-bg-dark);
            box-shadow: var(--shadow-hard-md);
        }

        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(32, 27, 22, 0.92) 25%, rgba(32, 27, 22, 0.65) 55%, rgba(32, 27, 22, 0.35) 100%);
            z-index: 1;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 36px 40px 32px;
            max-width: 720px;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 90, 31, 0.9);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            padding: 6px 14px;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
        }

        .category-hero h1 {
            font-size: clamp(28px, 4.5vw, 42px);
            font-weight: 800;
            color: var(--color-text-light);
            line-height: 1.18;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .category-hero .hero-desc {
            font-size: 0.95rem;
            color: var(--color-text-muted-dark);
            line-height: 1.75;
            max-width: 600px;
        }

        .category-hero .hero-stats {
            position: relative;
            z-index: 2;
            margin-left: auto;
            padding: 0 40px 32px 0;
            display: flex;
            gap: 20px;
            align-items: flex-end;
        }

        .hero-stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 14px 18px;
            min-width: 100px;
        }

        .hero-stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
            margin-top: 2px;
        }

        /* ============ 筛选排序条 ============ */
        .filter-bar {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-hard-sm);
            margin-bottom: 24px;
        }

        .filter-bar .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-bar .filter-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-muted-light);
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-bar .filter-btn {
            font-size: 0.8rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            color: var(--color-text-dark);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-bar .filter-btn:hover {
            border-color: var(--color-accent-orange);
            color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.04);
        }

        .filter-bar .filter-btn.active {
            background: var(--color-accent-orange);
            color: #fff;
            border-color: var(--color-accent-orange);
            font-weight: 600;
        }

        .filter-bar .filter-select {
            font-size: 0.8rem;
            padding: 6px 28px 6px 12px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            color: var(--color-text-dark);
            background: #fff;
            appearance: auto;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }

        .filter-bar .filter-select:hover,
        .filter-bar .filter-select:focus {
            border-color: var(--color-accent-orange);
        }

        .filter-bar .filter-divider {
            width: 1px;
            height: 24px;
            background: var(--color-border-light);
            margin: 0 4px;
        }

        /* ============ 列表卡片 ============ */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 28px;
        }

        .match-card {
            display: flex;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hard-sm);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
            position: relative;
        }

        .match-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--color-accent-orange);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .match-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 31, 0.25);
        }

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

        .match-card .card-img {
            flex-shrink: 0;
            width: 200px;
            min-height: 160px;
            position: relative;
            overflow: hidden;
        }

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

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

        .match-card .card-body {
            flex: 1;
            padding: 18px 16px 16px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }

        .match-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .match-card .card-tag {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            background: rgba(255, 90, 31, 0.08);
            color: var(--color-accent-orange);
            letter-spacing: 0.03em;
        }

        .match-card .card-tag.tag-secondary {
            background: rgba(231, 181, 59, 0.12);
            color: #8B6914;
        }

        .match-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-dark);
            line-height: 1.4;
        }

        .match-card .card-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .match-card .card-metrics {
            display: flex;
            gap: 16px;
            margin-top: auto;
            flex-wrap: wrap;
            padding-top: 4px;
        }

        .match-card .card-metric {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--color-text-muted-light);
        }

        .match-card .card-metric .metric-value {
            font-weight: 700;
            color: var(--color-text-dark);
        }

        .match-card .card-metric .metric-value.highlight {
            color: var(--color-accent-orange);
        }

        .match-card .card-metric .metric-value.success {
            color: var(--color-success);
        }

        .match-card .card-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            margin-top: 2px;
        }

        .match-card .card-link:hover {
            gap: 8px;
        }

        /* ============ 分页组件 ============ */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 8px 0 24px;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            background: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-dark);
            transition: all var(--transition-fast);
        }

        .pagination .page-btn:hover {
            border-color: var(--color-accent-orange);
            color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.04);
        }

        .pagination .page-btn.active {
            background: var(--color-accent-orange);
            color: #fff;
            border-color: var(--color-accent-orange);
            font-weight: 700;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        .pagination .page-ellipsis {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
        }

        /* ============ 流程板块 ============ */
        .process-section {
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: 36px 40px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-hard-md);
        }

        .process-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 24px;
        }

        .process-section .section-title .accent {
            color: var(--color-accent-orange);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 90, 31, 0.35);
        }

        .process-step .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.82rem;
            color: var(--color-text-muted-dark);
            line-height: 1.7;
        }

        /* ============ 指标带 ============ */
        .metrics-band {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-bottom: 32px;
        }

        .metric-band-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-hard-sm);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .metric-band-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .metric-band-item .band-num {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .metric-band-item .band-label {
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            margin-top: 4px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            margin-bottom: 32px;
        }

        .faq-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 18px;
        }

        .faq-section .section-title .accent {
            color: var(--color-accent-orange);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hard-sm);
            transition: border-color var(--transition-fast);
        }

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

        .faq-item .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-dark);
            text-align: left;
            transition: color var(--transition-fast);
        }

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

        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 90, 31, 0.1);
            color: var(--color-accent-orange);
            font-size: 0.7rem;
            transition: transform var(--transition-normal), background var(--transition-normal);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            background: var(--color-accent-orange);
            color: #fff;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal);
        }

        .faq-item .faq-answer-inner {
            padding: 0 18px 16px;
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.75;
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
            margin: 0 18px 16px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

        /* ============ CTA 区块 ============ */
        .cta-section {
            margin-bottom: 40px;
        }

        .cta-box {
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-hard-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent-orange), var(--color-gold), var(--color-accent-orange));
        }

        .cta-box h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .cta-box p {
            font-size: 0.95rem;
            color: var(--color-text-muted-dark);
            max-width: 540px;
            margin: 0 auto 22px;
            line-height: 1.75;
        }

        .cta-box .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent-orange);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 0 rgba(255, 90, 31, 0.25);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 0 rgba(255, 90, 31, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 0 rgba(255, 90, 31, 0.25);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-text-light);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-dark);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-accent-orange);
            transform: translateY(-2px);
        }

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

        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-muted-dark);
            padding: 40px 0 0;
            margin-top: auto;
        }

        .site-footer .container {
            padding-bottom: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--color-border-dark);
        }

        .site-footer h4 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .site-footer h5 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .site-footer .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.75;
            color: var(--color-text-muted-dark);
        }

        .site-footer .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0 20px;
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
        }

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

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

        .footer-bottom .back-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-gold);
            font-weight: 600;
            font-size: 0.75rem;
            transition: color var(--transition-fast);
        }

        .footer-bottom .back-top:hover {
            color: var(--color-accent-orange);
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1200px) {
            :root {
                --nav-width: 240px;
                --content-gap: 28px;
            }
            .content-area {
                padding: 0 24px;
            }
            .category-hero .hero-stats {
                padding-right: 24px;
            }
            .hero-stat-item {
                padding: 10px 14px;
                min-width: 80px;
            }
            .hero-stat-item .stat-num {
                font-size: 1.6rem;
            }
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .metrics-band {
                grid-template-columns: repeat(4, 1fr);
                gap: 10px;
            }
        }

        @media (max-width: 1024px) {
            :root {
                --nav-width: 220px;
            }
            .content-area {
                padding: 0 18px;
            }
            .match-card .card-img {
                width: 160px;
                min-height: 150px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-band {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .category-hero .hero-stats {
                display: none;
            }
            .category-hero .hero-content {
                max-width: 100%;
                padding: 28px 28px 26px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 260px;
            }
            .mobile-nav-toggle {
                display: flex;
            }
            .site-nav {
                transform: translateX(-100%);
                width: 260px;
            }
            .site-nav.mobile-open {
                transform: translateX(0);
            }
            .nav-overlay {
                display: block;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }
            .content-area {
                padding: 0 14px;
            }
            .match-card {
                flex-direction: column;
                gap: 0;
            }
            .match-card .card-img {
                width: 100%;
                height: 180px;
                min-height: auto;
            }
            .match-card .card-body {
                padding: 14px 16px 16px;
            }
            .filter-bar {
                padding: 12px 14px;
                gap: 8px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .process-section {
                padding: 24px 20px;
            }
            .metrics-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .metric-band-item .band-num {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .category-hero {
                min-height: 220px;
            }
            .category-hero .hero-content {
                padding: 20px 20px 18px;
            }
            .cta-box {
                padding: 28px 20px;
            }
            .cta-box h2 {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .filter-bar .filter-divider {
                display: none;
            }
            .filter-bar .filter-btn {
                font-size: 0.72rem;
                padding: 5px 10px;
            }
            .pagination .page-btn {
                width: 32px;
                height: 32px;
                font-size: 0.78rem;
            }
            .metrics-band {
                grid-template-columns: 1fr 1fr;
            }
            .metric-band-item .band-num {
                font-size: 1.4rem;
            }
            .cta-box .cta-buttons {
                flex-direction: column;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg-dark: #201B16;
            --color-bg-dark-secondary: #33271D;
            --color-bg-light: #F7F2E9;
            --color-bg-light-secondary: #F5F0E8;
            --color-accent-orange: #FF5A1F;
            --color-accent-orange-hover: #FF7A45;
            --color-gold: #E7B53B;
            --color-text-dark: #2A241E;
            --color-text-light: #F5F0E8;
            --color-text-muted-dark: rgba(245, 240, 232, 0.72);
            --color-text-muted-light: rgba(42, 36, 30, 0.68);
            --color-success: #3CB371;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-light: rgba(42, 36, 30, 0.10);
            --color-border-focus: #E7B53B;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --radius-xl: 8px;
            --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
            --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
            --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --nav-width: 268px;
            --content-gap: 36px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --section-gap-home: 88px;
            --section-gap-inner: 56px;
            --container-max: 1240px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-family);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.72;
            overflow-x: hidden;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), background-color var(--transition-fast), opacity var(--transition-fast);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* ============ 左侧竖向导航 ============ */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
        }
        .site-nav .brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }
        .site-nav .brand a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-nav .brand a .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.02em;
        }
        .site-nav .nav-scroll {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
        }
        .site-nav .nav-label {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-text-muted-dark);
            padding: 0 10px;
            margin-bottom: 8px;
            margin-top: 8px;
        }
        .site-nav .nav-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .site-nav .nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
            position: relative;
        }
        .site-nav .nav-list a .nav-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted-dark);
            min-width: 18px;
            letter-spacing: 0.04em;
        }
        .site-nav .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }
        .site-nav .nav-list a.active {
            background: rgba(255, 90, 31, 0.12);
            border-left-color: var(--color-accent-orange);
            color: var(--color-text-light);
            font-weight: 600;
        }
        .site-nav .nav-list a.active .nav-index {
            color: var(--color-accent-orange);
        }
        .site-nav .nav-footer {
            flex-shrink: 0;
            padding: 16px 20px;
            border-top: 1px solid var(--color-border-dark);
            display: flex;
            flex-direction: column;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
        }
        .site-nav .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent-orange);
            font-weight: 600;
            font-size: 0.8rem;
        }
        .site-nav .nav-contact {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
        }
        /* ============ 移动端顶部导航 ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 12px 16px;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .mobile-header .mobile-brand {
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-brand .brand-mark {
            display: inline-block;
            width: 24px;
            height: 24px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.75rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-header .hamburger {
            font-size: 1.4rem;
            color: var(--color-text-light);
            padding: 4px 8px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
        }
        .mobile-header .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
        }
        .mobile-overlay.active {
            display: block;
        }
        /* ============ 主内容区 ============ */
        .page-wrapper {
            margin-left: var(--nav-width);
            transition: margin var(--transition-normal);
        }
        .main-content {
            padding: 0 var(--content-gap);
            max-width: calc(100% - var(--nav-width));
        }
        /* ============ 按钮组件 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            box-shadow: var(--shadow-hard-sm);
        }
        .btn-primary:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-hard-sm);
        }
        .btn-outline {
            border: 1px solid var(--color-border-dark);
            color: var(--color-text-light);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-accent-orange);
            color: var(--color-accent-orange);
        }
        .btn-outline-light {
            border: 1px solid var(--color-border-light);
            color: var(--color-text-dark);
            background: transparent;
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent-orange);
            color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.06);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.8rem;
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 1rem;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }
        /* ============ 标签/徽章 ============ */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            border-radius: var(--radius-sm);
            text-transform: uppercase;
            background: rgba(255, 90, 31, 0.1);
            color: var(--color-accent-orange);
            border: 1px solid rgba(255, 90, 31, 0.25);
        }
        .tag-gold {
            background: rgba(231, 181, 59, 0.12);
            color: var(--color-gold);
            border-color: rgba(231, 181, 59, 0.3);
        }
        .tag-success {
            background: rgba(60, 179, 113, 0.12);
            color: var(--color-success);
            border-color: rgba(60, 179, 113, 0.3);
        }
        /* ============ 分类 Hero ============ */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 28px;
            box-shadow: var(--shadow-hard-md);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(32, 27, 22, 0.92) 0%, rgba(32, 27, 22, 0.65) 50%, rgba(32, 27, 22, 0.35) 100%);
            z-index: 1;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            padding: 40px 48px;
            max-width: 620px;
        }
        .category-hero-content .hero-tag {
            display: inline-block;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: var(--radius-sm);
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .category-hero-content h1 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            color: var(--color-text-light);
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .category-hero-content h1 span {
            color: var(--color-accent-orange);
        }
        .category-hero-content p {
            font-size: 1rem;
            color: var(--color-text-muted-dark);
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 520px;
        }
        .category-hero-content .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* ============ 筛选条 ============ */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 0;
            margin: 24px 0 16px;
            border-bottom: 1px solid var(--color-border-light);
            flex-wrap: wrap;
        }
        .filter-bar .filter-count {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            font-weight: 500;
        }
        .filter-bar .filter-count strong {
            color: var(--color-text-dark);
            font-weight: 700;
        }
        .filter-tabs {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
        }
        .filter-tabs button {
            padding: 6px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            color: var(--color-text-muted-light);
            background: transparent;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .filter-tabs button:hover {
            background: rgba(255, 90, 31, 0.06);
            color: var(--color-text-dark);
        }
        .filter-tabs button.active {
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            border-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-sm);
        }
        /* ============ 瀑布流卡片栅格 ============ */
        .masonry-grid {
            columns: 3;
            column-gap: 20px;
            margin-top: 16px;
        }
        .brick-card {
            break-inside: avoid;
            margin-bottom: 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hard-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            position: relative;
        }
        .brick-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 31, 0.3);
        }
        .brick-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }
        .brick-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .brick-card:hover .card-image img {
            transform: scale(1.04);
        }
        .brick-card .card-image::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--color-accent-orange);
            z-index: 1;
        }
        .brick-card .card-body {
            padding: 18px 20px 20px;
        }
        .brick-card .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .brick-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .brick-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .brick-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .brick-card .card-stats {
            display: flex;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--color-text-muted-light);
        }
        .brick-card .card-stats i {
            color: var(--color-accent-orange);
            margin-right: 4px;
        }
        .brick-card .card-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }
        .brick-card .card-link:hover {
            gap: 8px;
        }
        /* 卡片高度变化 */
        .brick-card.tall .card-image {
            aspect-ratio: 16/12;
        }
        .brick-card.short .card-image {
            aspect-ratio: 16/8;
        }
        .brick-card.medium .card-image {
            aspect-ratio: 16/10;
        }
        /* ============ 窄 CTA 条 ============ */
        .cta-strip {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 24px 32px;
            margin: 32px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            box-shadow: var(--shadow-hard-md);
            flex-wrap: wrap;
        }
        .cta-strip .strip-text h3 {
            color: var(--color-text-light);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .cta-strip .strip-text p {
            color: var(--color-text-muted-dark);
            font-size: 0.85rem;
        }
        .cta-strip .strip-actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        /* ============ 数据/优势区块 ============ */
        .insight-section {
            margin: 48px 0 40px;
        }
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 20px;
        }
        .insight-card {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: left;
            border: 1px solid var(--color-border-dark);
            transition: all var(--transition-normal);
        }
        .insight-card:hover {
            transform: translateY(-3px);
            border-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-md);
        }
        .insight-card .insight-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .insight-card .insight-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }
        .insight-card .insight-desc {
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
            line-height: 1.6;
        }
        /* ============ FAQ ============ */
        .faq-section {
            margin: 48px 0 40px;
        }
        .faq-accordion {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-normal);
        }
        .faq-item.active {
            border-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-sm);
        }
        .faq-item .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--color-text-dark);
            cursor: pointer;
            transition: background var(--transition-fast);
            text-align: left;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 90, 31, 0.04);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-accent-orange);
            transition: transform var(--transition-normal);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
        }
        /* ============ 表单区 ============ */
        .contact-form-section {
            background: var(--color-bg-dark-secondary);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            margin: 40px 0;
            color: var(--color-text-light);
            border: 1px solid var(--color-border-dark);
        }
        .contact-form-section .form-heading {
            margin-bottom: 20px;
        }
        .contact-form-section .form-heading h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .contact-form-section .form-heading p {
            font-size: 0.9rem;
            color: var(--color-text-muted-dark);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--color-text-light);
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-light);
            font-size: 0.88rem;
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 0;
            border-color: var(--color-border-focus);
            background: rgba(255, 255, 255, 0.1);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-group select option {
            color: var(--color-text-dark);
            background: #fff;
        }
        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 48px 0 24px;
            margin-top: 64px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand h4 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted-dark);
            line-height: 1.7;
            max-width: 340px;
        }
        .site-footer .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--color-accent-orange);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
        }
        .site-footer .footer-bottom a {
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--color-accent-orange);
        }
        .back-to-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.8rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .back-to-top:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
        }
        /* ============ 面包屑 ============ */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--color-text-muted-light);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-orange);
        }
        .breadcrumb .separator {
            color: var(--color-border-light);
        }
        .breadcrumb .current {
            color: var(--color-text-dark);
            font-weight: 600;
        }
        /* ============ 板块标题 ============ */
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-dark);
            line-height: 1.3;
            margin-bottom: 6px;
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            background: var(--color-accent-orange);
            border-radius: var(--radius-sm);
        }
        .section-subtitle {
            font-size: 0.92rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            margin-bottom: 16px;
            padding-left: 16px;
        }
        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            :root {
                --nav-width: 240px;
                --content-gap: 24px;
            }
            .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .main-content {
                padding: 0 20px;
                max-width: 100%;
            }
        }
        @media (max-width: 1024px) {
            .masonry-grid {
                columns: 2;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-nav {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .page-wrapper {
                margin-left: 0;
            }
            .main-content {
                padding: 70px 16px 0;
                max-width: 100%;
            }
            .masonry-grid {
                columns: 1;
            }
            .category-hero {
                min-height: 300px;
                margin-top: 16px;
            }
            .category-hero-content {
                padding: 28px 24px;
            }
            .insight-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .cta-strip {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .cta-strip .strip-actions {
                justify-content: center;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .breadcrumb {
                font-size: 0.72rem;
                flex-wrap: wrap;
            }
        }
        @media (max-width: 480px) {
            .category-hero {
                min-height: 260px;
            }
            .category-hero-content h1 {
                font-size: 24px;
            }
            .category-hero-content .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .btn-lg {
                padding: 14px 20px;
                font-size: 0.9rem;
            }
            .masonry-grid {
                columns: 1;
            }
            .brick-card .card-body {
                padding: 14px 16px 16px;
            }
            .cta-strip {
                padding: 16px;
            }
            .contact-form-section {
                padding: 24px 18px;
            }
        }

/* roulang page: category3 */
:root {
            --color-bg-dark: #201B16;
            --color-bg-dark-secondary: #33271D;
            --color-bg-light: #F7F2E9;
            --color-bg-light-secondary: #F5F0E8;
            --color-accent-orange: #FF5A1F;
            --color-accent-orange-hover: #FF7A45;
            --color-gold: #E7B53B;
            --color-text-dark: #2A241E;
            --color-text-light: #F5F0E8;
            --color-text-muted-dark: rgba(245, 240, 232, 0.72);
            --color-text-muted-light: rgba(42, 36, 30, 0.68);
            --color-success: #3CB371;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-light: rgba(42, 36, 30, 0.10);
            --color-border-focus: #E7B53B;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --radius-xl: 8px;
            --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
            --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
            --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --nav-width: 268px;
            --content-gap: 36px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --section-gap-home: 88px;
            --section-gap-inner: 56px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.72;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ 左侧竖向导航 ============ */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
        }

        .site-nav .brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }

        .site-nav .brand a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-nav .brand a .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.02em;
        }

        .site-nav .nav-scroll {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
        }

        .site-nav .nav-label {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-text-muted-dark);
            padding: 0 10px;
            margin-bottom: 8px;
            margin-top: 8px;
        }

        .site-nav .nav-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .site-nav .nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
            position: relative;
        }

        .site-nav .nav-list a .nav-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted-dark);
            min-width: 18px;
            letter-spacing: 0.04em;
        }

        .site-nav .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }

        .site-nav .nav-list a.active {
            background: rgba(255, 90, 31, 0.12);
            border-left-color: var(--color-accent-orange);
            color: var(--color-text-light);
            font-weight: 600;
        }

        .site-nav .nav-list a.active .nav-index {
            color: var(--color-accent-orange);
        }

        .site-nav .nav-footer {
            padding: 14px 18px;
            border-top: 1px solid var(--color-border-dark);
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-shrink: 0;
        }

        .site-nav .nav-cta {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent-orange);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .site-nav .nav-contact {
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 移动端导航 ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            z-index: 1001;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-header .brand-mobile {
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .mobile-header .brand-mobile .brand-mark {
            display: inline-block;
            width: 22px;
            height: 22px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.7rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-header .menu-toggle {
            color: var(--color-text-light);
            font-size: 1.2rem;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-header .menu-toggle:hover {
            background: rgba(255, 90, 31, 0.15);
        }

        /* ============ 内容区 ============ */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
            padding: 0;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb {
            background: var(--color-bg-light);
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .current {
            color: var(--color-text-dark);
            font-weight: 600;
        }

        .breadcrumb i {
            font-size: 0.65rem;
            color: var(--color-text-muted-light);
            opacity: 0.6;
        }

        /* ============ 按钮系统 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 22px;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            border: 2px solid var(--color-accent-orange);
        }

        .btn-primary:hover {
            background: var(--color-accent-orange-hover);
            border-color: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard-sm);
        }

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

        .btn-outline {
            background: transparent;
            color: var(--color-text-dark);
            border: 2px solid var(--color-border-light);
        }

        .btn-outline:hover {
            background: rgba(42, 36, 30, 0.06);
            border-color: var(--color-text-dark);
            transform: translateY(-2px);
        }

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

        .btn-outline-light {
            background: transparent;
            color: var(--color-text-light);
            border: 2px solid var(--color-border-dark);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--color-text-light);
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        .btn-outline:focus-visible,
        .btn-outline-light:focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.8rem;
        }

        /* ============ 分类页 Hero ============ */
        .category-hero {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero .hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 50%;
            background: url('/assets/images/coverpic/cover-7.webp') center/cover no-repeat;
            opacity: 0.18;
            mask-image: linear-gradient(to right, transparent, rgba(0,0,0,0.7));
            -webkit-mask-image: linear-gradient(to right, transparent, rgba(0,0,0,0.7));
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 1;
        }

        .category-hero .hero-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent-orange);
            margin-bottom: 16px;
            padding: 4px 12px;
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-sm);
        }

        .category-hero h1 {
            font-size: clamp(32px, 4.8vw, 52px);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--color-text-light);
        }

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

        .category-hero .hero-desc {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--color-text-muted-dark);
            max-width: 680px;
            margin-bottom: 28px;
        }

        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .category-hero .hero-stats .stat-item {
            text-align: left;
        }

        .category-hero .hero-stats .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-gold);
            line-height: 1.2;
        }

        .category-hero .hero-stats .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted-dark);
            margin-top: 4px;
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: var(--section-gap-inner) 0;
        }

        .section-head {
            margin-bottom: 36px;
        }

        .section-head .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent-orange);
            margin-bottom: 8px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3.2vw, 36px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text-dark);
            margin-bottom: 12px;
        }

        .section-head .section-desc {
            font-size: 1rem;
            color: var(--color-text-muted-light);
            max-width: 720px;
            line-height: 1.75;
        }

        /* ============ 横向图文卡 ============ */
        .horizontal-card {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 32px;
            align-items: center;
            margin-bottom: 32px;
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hard-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

        .horizontal-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(255, 90, 31, 0.3);
        }

        .horizontal-card.reverse {
            grid-template-columns: 1.1fr 1fr;
        }

        .horizontal-card.reverse .card-image {
            order: 2;
        }

        .horizontal-card.reverse .card-body {
            order: 1;
        }

        .horizontal-card .card-image {
            height: 100%;
            min-height: 300px;
            position: relative;
            overflow: hidden;
        }

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

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

        .horizontal-card .card-body {
            padding: 28px 32px;
        }

        .horizontal-card .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-accent-orange);
            background: rgba(255, 90, 31, 0.08);
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .horizontal-card .card-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .horizontal-card .card-desc {
            font-size: 0.95rem;
            color: var(--color-text-muted-light);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .horizontal-card .card-meta {
            display: flex;
            gap: 20px;
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }

        .horizontal-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ 方法步骤条 ============ */
        .method-flow {
            background: var(--color-bg-dark);
            padding: var(--section-gap-inner) 0;
            color: var(--color-text-light);
        }

        .method-flow .section-head h2 {
            color: var(--color-text-light);
        }

        .method-flow .section-head .section-desc {
            color: var(--color-text-muted-dark);
        }

        .method-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .method-step {
            background: var(--color-bg-dark-secondary);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition-fast);
        }

        .method-step:hover {
            border-color: var(--color-accent-orange);
            background: rgba(51, 39, 29, 0.9);
            transform: translateY(-3px);
        }

        .method-step .step-number {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent-orange);
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .method-step .step-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-light);
        }

        .method-step .step-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted-dark);
            line-height: 1.65;
        }

        /* ============ FAQ手风琴 ============ */
        .faq-section {
            background: var(--color-bg-light-secondary);
            padding: var(--section-gap-inner) 0;
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hard-sm);
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-hard-md);
            border-color: rgba(255, 90, 31, 0.25);
        }

        .faq-item.active {
            border-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-md);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text-dark);
            transition: color var(--transition-fast);
            background: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-item .faq-icon {
            font-size: 0.8rem;
            color: var(--color-accent-orange);
            transition: transform var(--transition-normal);
            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-normal), padding var(--transition-normal);
            padding: 0 22px;
            color: var(--color-text-muted-light);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* ============ CTA区块 ============ */
        .cta-section {
            background: var(--color-bg-dark);
            padding: 64px 0;
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .cta-section .cta-inner {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--color-text-light);
        }

        .cta-section h2 span {
            color: var(--color-accent-orange);
        }

        .cta-section .cta-desc {
            font-size: 1rem;
            color: var(--color-text-muted-dark);
            margin-bottom: 28px;
            line-height: 1.75;
        }

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

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            padding: 48px 0 24px;
            border-top: 1px solid var(--color-border-dark);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand h4 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--color-text-light);
        }

        .site-footer .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted-dark);
            line-height: 1.75;
            max-width: 320px;
        }

        .site-footer .footer-col h5 {
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text-light);
            letter-spacing: 0.03em;
        }

        .site-footer .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .site-footer .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.75rem;
            color: var(--color-text-muted-dark);
        }

        .site-footer .footer-bottom a {
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom .bottom-links {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            :root {
                --nav-width: 240px;
                --content-gap: 28px;
            }
            .method-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (max-width: 1024px) {
            :root {
                --nav-width: 100%;
                --section-gap-home: 64px;
                --section-gap-inner: 44px;
            }
            .site-nav {
                transform: translateX(-100%);
                width: 280px;
                transition: transform var(--transition-normal);
            }
            .site-nav.nav-open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .horizontal-card {
                grid-template-columns: 1fr;
            }
            .horizontal-card.reverse {
                grid-template-columns: 1fr;
            }
            .horizontal-card.reverse .card-image {
                order: 1;
            }
            .horizontal-card.reverse .card-body {
                order: 2;
            }
            .horizontal-card .card-image {
                min-height: 240px;
                max-height: 280px;
            }
            .method-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 768px) {
            .category-hero .hero-bg {
                width: 100%;
                opacity: 0.1;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .hero-stats .stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-head {
                margin-bottom: 24px;
            }
            .horizontal-card .card-body {
                padding: 20px;
            }
            .horizontal-card .card-title {
                font-size: 1.15rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-section .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .method-steps {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-brand {
                grid-column: 1;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-desc {
                font-size: 0.95rem;
            }
            .horizontal-card .card-image {
                min-height: 180px;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
        }

        @media (max-width: 360px) {
            .category-hero .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
        }

        /* 遮罩 */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }
        .nav-overlay.active {
            display: block;
        }

/* roulang page: category4 */
:root {
            --color-bg-dark: #201B16;
            --color-bg-dark-secondary: #33271D;
            --color-bg-light: #F7F2E9;
            --color-bg-light-secondary: #F5F0E8;
            --color-accent-orange: #FF5A1F;
            --color-accent-orange-hover: #FF7A45;
            --color-gold: #E7B53B;
            --color-text-dark: #2A241E;
            --color-text-light: #F5F0E8;
            --color-text-muted-dark: rgba(245, 240, 232, 0.72);
            --color-text-muted-light: rgba(42, 36, 30, 0.68);
            --color-success: #3CB371;
            --color-border-dark: rgba(255, 255, 255, 0.12);
            --color-border-light: rgba(42, 36, 30, 0.10);
            --color-border-focus: #E7B53B;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 6px;
            --radius-xl: 8px;
            --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
            --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
            --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
            --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --nav-width: 268px;
            --content-gap: 36px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --section-gap-home: 88px;
            --section-gap-inner: 56px;
            --container-max: 1240px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg-light);
            color: var(--color-text-dark);
            line-height: 1.72;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ============ 左侧竖向导航 ============ */
        .site-nav {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--nav-width);
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-normal);
        }

        .site-nav .brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }

        .site-nav .brand a {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-nav .brand a .brand-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-size: 0.85rem;
            font-weight: 800;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.02em;
        }

        .site-nav .nav-scroll {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
        }

        .site-nav .nav-label {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-text-muted-dark);
            padding: 0 10px;
            margin-bottom: 8px;
            margin-top: 8px;
        }

        .site-nav .nav-list {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .site-nav .nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text-muted-dark);
            border-left: 4px solid transparent;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            transition: all var(--transition-fast);
            position: relative;
        }

        .site-nav .nav-list a .nav-index {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-text-muted-dark);
            min-width: 18px;
            letter-spacing: 0.04em;
        }

        .site-nav .nav-list a:hover {
            background: rgba(255, 90, 31, 0.15);
            color: var(--color-text-light);
        }

        .site-nav .nav-list a.active {
            background: rgba(255, 90, 31, 0.12);
            border-left-color: var(--color-accent-orange);
            color: var(--color-text-light);
            font-weight: 600;
        }

        .site-nav .nav-list a.active .nav-index {
            color: var(--color-accent-orange);
        }

        .site-nav .nav-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--color-border-dark);
            flex-shrink: 0;
        }

        .site-nav .nav-cta {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent-orange);
            margin-bottom: 8px;
        }

        .site-nav .nav-contact {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.78rem;
            color: var(--color-text-muted-dark);
        }

        /* 移动端汉堡按钮 */
        .mobile-nav-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1002;
            width: 44px;
            height: 44px;
            background: var(--color-bg-dark);
            border: 1px solid var(--color-border-dark);
            border-radius: var(--radius-md);
            color: var(--color-text-light);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }

        .mobile-nav-toggle:hover {
            background: var(--color-bg-dark-secondary);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }

        .mobile-nav-overlay.visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ 主内容区 ============ */
        .main-wrapper {
            margin-left: var(--nav-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
        }

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

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

        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--color-text-muted-light);
            opacity: 0.6;
        }

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

        /* ============ Hero 区域 ============ */
        .page-hero {
            position: relative;
            padding: 48px 0 56px;
            background: var(--color-bg-dark);
            overflow: hidden;
            border-radius: 0 0 var(--radius-xl) var(--radius-xl);
            margin-bottom: var(--section-gap-inner);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(32, 27, 22, 0.92) 0%, rgba(32, 27, 22, 0.78) 40%, rgba(255, 90, 31, 0.28) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            z-index: 0;
            opacity: 0.5;
        }

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

        .page-hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 90, 31, 0.18);
            border: 1px solid rgba(255, 90, 31, 0.45);
            border-radius: var(--radius-md);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--color-accent-orange);
            margin-bottom: 16px;
        }

        .page-hero h1 {
            font-size: clamp(30px, 4.8vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            color: var(--color-text-light);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            max-width: 700px;
        }

        .page-hero .hero-subtitle {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text-muted-dark);
            max-width: 620px;
            margin-bottom: 24px;
        }

        .page-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 8px;
        }

        .page-hero .hero-stat {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }

        .page-hero .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            letter-spacing: -0.02em;
        }

        .page-hero .hero-stat .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted-dark);
        }

        /* ============ 通用板块样式 ============ */
        .section {
            padding: var(--section-gap-inner) 0;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text-dark);
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 0.95rem;
            color: var(--color-text-muted-light);
            max-width: 580px;
            line-height: 1.75;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent-orange);
            margin-bottom: 10px;
        }

        /* ============ 指标面板 ============ */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            border: 1px solid var(--color-border-dark);
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--color-accent-orange);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-normal);
        }

        .metric-card:hover {
            border-color: rgba(255, 90, 31, 0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .metric-card:hover::before {
            transform: scaleX(1);
        }

        .metric-card .metric-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 90, 31, 0.15);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-accent-orange);
            margin-bottom: 12px;
        }

        .metric-card .metric-value {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-text-light);
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .metric-card .metric-value .unit {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-muted-dark);
            letter-spacing: 0;
            margin-left: 2px;
        }

        .metric-card .metric-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-muted-dark);
            margin-bottom: 6px;
        }

        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-success);
        }

        /* ============ 参数对比条 ============ */
        .comparison-strip {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-dark);
        }

        .comparison-strip .strip-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .comparison-row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-dark);
        }

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

        .comparison-row .row-label {
            width: 120px;
            flex-shrink: 0;
            font-size: 0.82rem;
            color: var(--color-text-muted-dark);
            font-weight: 500;
        }

        .comparison-row .bar-area {
            flex: 1;
            height: 14px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            position: relative;
            overflow: hidden;
        }

        .comparison-row .bar-fill {
            height: 100%;
            border-radius: var(--radius-sm);
            background: linear-gradient(90deg, var(--color-accent-orange) 0%, var(--color-gold) 100%);
            transition: width 0.6s ease;
            position: relative;
        }

        .comparison-row .row-value {
            width: 50px;
            flex-shrink: 0;
            text-align: right;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-text-light);
        }

        /* ============ 对比卡 ============ */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .compare-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            padding: 24px 20px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .compare-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--color-accent-orange);
        }

        .compare-card.highlight::before {
            background: var(--color-gold);
        }

        .compare-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 90, 31, 0.3);
        }

        .compare-card .card-badge {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(255, 90, 31, 0.1);
            color: var(--color-accent-orange);
            font-size: 0.7rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .compare-card.highlight .card-badge {
            background: rgba(231, 181, 59, 0.15);
            color: #8B6914;
        }

        .compare-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .compare-card .compare-data {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 14px;
        }

        .compare-card .compare-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed var(--color-border-light);
            font-size: 0.85rem;
        }

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

        .compare-card .compare-item .label {
            color: var(--color-text-muted-light);
        }

        .compare-card .compare-item .val {
            font-weight: 700;
            color: var(--color-text-dark);
        }

        .compare-card .compare-item .val.high {
            color: var(--color-accent-orange);
        }

        .compare-card .card-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            line-height: 1.65;
        }

        /* ============ 流程步骤 ============ */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            counter-reset: step;
        }

        .flow-step {
            background: var(--color-bg-dark);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            border: 1px solid var(--color-border-dark);
            position: relative;
            counter-increment: step;
            transition: all var(--transition-fast);
        }

        .flow-step:hover {
            border-color: rgba(255, 90, 31, 0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .flow-step .step-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-orange);
            line-height: 1;
            margin-bottom: 10px;
            letter-spacing: -0.03em;
        }

        .flow-step .step-num::before {
            content: '0' counter(step);
        }

        .flow-step h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 6px;
        }

        .flow-step p {
            font-size: 0.8rem;
            color: var(--color-text-muted-dark);
            line-height: 1.65;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(255, 90, 31, 0.25);
        }

        .faq-item.active {
            border-color: var(--color-accent-orange);
            box-shadow: var(--shadow-hard-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: var(--color-bg-dark);
            color: var(--color-text-light);
            font-size: 0.9rem;
            font-weight: 600;
            text-align: left;
            transition: background-color var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--color-bg-dark-secondary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 90, 31, 0.2);
            border-radius: 50%;
            font-size: 0.7rem;
            color: var(--color-accent-orange);
            transition: transform var(--transition-normal);
        }

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

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

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer .answer-inner {
            padding: 16px 20px;
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            line-height: 1.75;
            background: var(--color-bg-light-secondary);
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--color-bg-dark);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin-top: var(--section-gap-inner);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 90, 31, 0.18) 0%, transparent 70%);
            z-index: 1;
        }

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

        .cta-section h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 0.95rem;
            color: var(--color-text-muted-dark);
            max-width: 500px;
            margin: 0 auto 24px;
            line-height: 1.75;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 90, 31, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 90, 31, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            background: transparent;
            color: var(--color-text-light);
            font-weight: 600;
            font-size: 0.88rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-dark);
            transition: all var(--transition-fast);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.25);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            background: rgba(255, 255, 255, 0.12);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: var(--color-text-dark);
            font-weight: 600;
            font-size: 0.88rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .btn-outline-light:hover {
            background: rgba(42, 36, 30, 0.05);
            border-color: rgba(42, 36, 30, 0.3);
        }

        .btn-outline-light:focus-visible {
            outline: 2px solid var(--color-border-focus);
            outline-offset: 2px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-muted-dark);
            padding: 48px 0 24px;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            margin-top: var(--section-gap-inner);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand h4 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: var(--color-text-muted-dark);
        }

        .site-footer .footer-col h5 {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .site-footer .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .site-footer .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.78rem;
        }

        .site-footer .footer-bottom a {
            color: var(--color-text-muted-dark);
            transition: color var(--transition-fast);
        }

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

        /* ============ 返回顶部 ============ */
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            background: var(--color-accent-orange);
            color: var(--color-bg-dark);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            z-index: 900;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.35);
        }

        .back-to-top:hover {
            background: var(--color-accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 90, 31, 0.45);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1200px) {
            :root {
                --nav-width: 240px;
                --content-gap: 28px;
            }

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

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

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

            .site-footer .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 1024px) {
            :root {
                --nav-width: 0px;
            }

            .site-nav {
                transform: translateX(-100%);
                width: 268px;
            }

            .site-nav.open {
                transform: translateX(0);
            }

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

            .mobile-nav-overlay {
                display: block;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }

            .page-hero .hero-stats {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap-inner: 40px;
                --section-gap-home: 56px;
            }

            .page-hero {
                padding: 32px 0 40px;
            }

            .page-hero h1 {
                font-size: clamp(26px, 5vw, 32px);
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-card .metric-value {
                font-size: 1.8rem;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .flow-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .comparison-row {
                flex-wrap: wrap;
                gap: 8px;
            }

            .comparison-row .row-label {
                width: 100%;
                flex-shrink: unset;
                margin-bottom: 4px;
            }

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

            .site-footer .footer-brand {
                grid-column: span 2;
            }

            .cta-section {
                padding: 32px 20px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 480px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }

            .page-hero .hero-stats {
                flex-direction: column;
                gap: 8px;
            }

            .page-hero .hero-stat .stat-num {
                font-size: 1.5rem;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .breadcrumb {
                font-size: 0.75rem;
                overflow-x: auto;
                white-space: nowrap;
                -webkit-overflow-scrolling: touch;
            }

            .section-header h2 {
                font-size: 22px;
            }
        }

/* roulang page: category5 */
:root {
        --color-bg-dark: #201B16;
        --color-bg-dark-secondary: #33271D;
        --color-bg-light: #F7F2E9;
        --color-bg-light-secondary: #F5F0E8;
        --color-accent-orange: #FF5A1F;
        --color-accent-orange-hover: #FF7A45;
        --color-gold: #E7B53B;
        --color-text-dark: #2A241E;
        --color-text-light: #F5F0E8;
        --color-text-muted-dark: rgba(245, 240, 232, 0.72);
        --color-text-muted-light: rgba(42, 36, 30, 0.68);
        --color-success: #3CB371;
        --color-border-dark: rgba(255, 255, 255, 0.12);
        --color-border-light: rgba(42, 36, 30, 0.10);
        --color-border-focus: #E7B53B;
        --radius-sm: 2px;
        --radius-md: 4px;
        --radius-lg: 6px;
        --radius-xl: 8px;
        --shadow-hard-sm: 0 4px 0 rgba(0, 0, 0, 0.08);
        --shadow-hard-md: 0 8px 24px rgba(0, 0, 0, 0.12);
        --shadow-hard-lg: 0 12px 40px rgba(0, 0, 0, 0.18);
        --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.16);
        --font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        --nav-width: 268px;
        --content-gap: 36px;
        --transition-fast: 0.18s ease;
        --transition-normal: 0.28s ease;
        --section-gap-home: 88px;
        --section-gap-inner: 56px;
        --container-max: 1240px;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        font-size: 16px;
    }
    body {
        font-family: var(--font-family);
        background: var(--color-bg-light);
        color: var(--color-text-dark);
        line-height: 1.72;
        overflow-x: hidden;
        margin: 0;
        min-height: 100vh;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition-fast), background-color var(--transition-fast), opacity var(--transition-fast);
    }
    img {
        display: block;
        max-width: 100%;
        height: auto;
    }
    button,
    input,
    textarea,
    select {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: none;
        color: inherit;
    }
    button {
        cursor: pointer;
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 20px;
    }

    /* ============ 左侧竖向导航 ============ */
    .site-nav {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: var(--nav-width);
        background: var(--color-bg-dark);
        color: var(--color-text-light);
        display: flex;
        flex-direction: column;
        z-index: 1000;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
        transition: transform var(--transition-normal);
    }
    .site-nav .brand {
        padding: 20px 20px 16px;
        border-bottom: 1px solid var(--color-border-dark);
        flex-shrink: 0;
    }
    .site-nav .brand a {
        font-size: 1.25rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        color: var(--color-text-light);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .site-nav .brand a .brand-mark {
        display: inline-block;
        width: 28px;
        height: 28px;
        background: var(--color-accent-orange);
        color: var(--color-bg-dark);
        font-size: 0.85rem;
        font-weight: 800;
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        letter-spacing: -0.02em;
    }
    .site-nav .nav-scroll {
        flex: 1;
        overflow-y: auto;
        padding: 16px 12px;
    }
    .site-nav .nav-label {
        font-size: 0.72rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--color-text-muted-dark);
        padding: 0 10px;
        margin-bottom: 8px;
        margin-top: 8px;
    }
    .site-nav .nav-list {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    .site-nav .nav-list a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 12px;
        font-size: 0.88rem;
        font-weight: 500;
        color: var(--color-text-muted-dark);
        border-left: 4px solid transparent;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        transition: all var(--transition-fast);
        position: relative;
    }
    .site-nav .nav-list a .nav-index {
        font-size: 0.7rem;
        font-weight: 700;
        color: var(--color-text-muted-dark);
        min-width: 18px;
        letter-spacing: 0.04em;
    }
    .site-nav .nav-list a:hover {
        background: rgba(255, 90, 31, 0.15);
        color: var(--color-text-light);
    }
    .site-nav .nav-list a.active {
        background: rgba(255, 90, 31, 0.12);
        border-left-color: var(--color-accent-orange);
        color: var(--color-text-light);
        font-weight: 600;
    }
    .site-nav .nav-list a.active .nav-index {
        color: var(--color-accent-orange);
    }
    .site-nav .nav-footer {
        padding: 14px 18px;
        border-top: 1px solid var(--color-border-dark);
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .site-nav .nav-footer .nav-cta {
        font-size: 0.78rem;
        font-weight: 600;
        color: var(--color-accent-orange);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .site-nav .nav-footer .nav-contact {
        font-size: 0.7rem;
        color: var(--color-text-muted-dark);
        display: flex;
        align-items: center;
        gap: 6px;
        word-break: break-all;
    }

    /* ============ 主内容区 ============ */
    .main-content {
        margin-left: var(--nav-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }
    .page-content {
        flex: 1;
        padding: 0;
    }

    /* ============ 移动端顶部导航 ============ */
    .mobile-header {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: var(--color-bg-dark);
        color: var(--color-text-light);
        z-index: 1000;
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    }
    .mobile-header .mobile-brand {
        font-weight: 800;
        font-size: 1.1rem;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .mobile-header .mobile-brand .brand-mark {
        display: inline-block;
        width: 24px;
        height: 24px;
        background: var(--color-accent-orange);
        color: var(--color-bg-dark);
        font-size: 0.75rem;
        font-weight: 800;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .mobile-header .menu-toggle {
        color: var(--color-text-light);
        font-size: 1.3rem;
        padding: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-sm);
        transition: background var(--transition-fast);
    }
    .mobile-header .menu-toggle:hover {
        background: rgba(255, 255, 255, 0.1);
    }
    .mobile-menu-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--color-bg-dark);
        z-index: 999;
        padding: 68px 20px 24px;
        flex-direction: column;
        gap: 12px;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition-normal), visibility var(--transition-normal);
    }
    .mobile-menu-overlay.open {
        opacity: 1;
        visibility: visible;
    }
    .mobile-menu-overlay .mobile-nav-label {
        font-size: 0.7rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--color-text-muted-dark);
        margin-bottom: 4px;
    }
    .mobile-menu-overlay .nav-list {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    .mobile-menu-overlay .nav-list a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 14px;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--color-text-muted-dark);
        border-left: 4px solid transparent;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        transition: all var(--transition-fast);
    }
    .mobile-menu-overlay .nav-list a:hover {
        background: rgba(255, 90, 31, 0.15);
        color: var(--color-text-light);
    }
    .mobile-menu-overlay .nav-list a.active {
        background: rgba(255, 90, 31, 0.12);
        border-left-color: var(--color-accent-orange);
        color: var(--color-text-light);
        font-weight: 600;
    }
    .mobile-menu-overlay .nav-list a .nav-index {
        font-size: 0.7rem;
        font-weight: 700;
        color: var(--color-text-muted-dark);
        min-width: 18px;
    }
    .mobile-menu-overlay .nav-list a.active .nav-index {
        color: var(--color-accent-orange);
    }
    .mobile-menu-overlay .mobile-menu-footer {
        margin-top: auto;
        padding-top: 16px;
        border-top: 1px solid var(--color-border-dark);
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .mobile-menu-overlay .mobile-menu-footer .nav-cta {
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--color-accent-orange);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .mobile-menu-overlay .mobile-menu-footer .nav-contact {
        font-size: 0.72rem;
        color: var(--color-text-muted-dark);
        word-break: break-all;
    }
    .mobile-menu-close {
        position: absolute;
        top: 12px;
        right: 16px;
        color: var(--color-text-light);
        font-size: 1.4rem;
        padding: 6px;
        border-radius: var(--radius-sm);
        transition: background var(--transition-fast);
        z-index: 1001;
    }
    .mobile-menu-close:hover {
        background: rgba(255, 255, 255, 0.1);
    }

    /* ============ 面包屑 ============ */
    .breadcrumb-area {
        background: var(--color-bg-dark);
        color: var(--color-text-muted-dark);
        padding: 24px 0 16px;
        border-bottom: 1px solid var(--color-border-dark);
    }
    .breadcrumb-area .container {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 0.82rem;
    }
    .breadcrumb-area a {
        color: var(--color-text-muted-dark);
        transition: color var(--transition-fast);
    }
    .breadcrumb-area a:hover {
        color: var(--color-accent-orange);
    }
    .breadcrumb-area .separator {
        color: var(--color-text-muted-dark);
        opacity: 0.5;
    }
    .breadcrumb-area .current {
        color: var(--color-text-light);
        font-weight: 600;
    }

    /* ============ 分类页标题区 ============ */
    .category-hero {
        background: var(--color-bg-dark-secondary);
        color: var(--color-text-light);
        padding: 48px 0 56px;
        position: relative;
        overflow: hidden;
        border-bottom: 1px solid var(--color-border-dark);
    }
    .category-hero::after {
        content: '';
        position: absolute;
        right: -40px;
        top: -40px;
        width: 200px;
        height: 200px;
        background: radial-gradient(circle, rgba(255, 90, 31, 0.15) 0%, transparent 70%);
        pointer-events: none;
    }
    .category-hero .container {
        position: relative;
        z-index: 1;
    }
    .category-hero .hero-tag {
        display: inline-block;
        background: rgba(255, 90, 31, 0.18);
        color: var(--color-accent-orange);
        font-size: 0.75rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        padding: 6px 14px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255, 90, 31, 0.3);
        margin-bottom: 16px;
    }
    .category-hero h1 {
        font-size: clamp(28px, 4vw, 42px);
        font-weight: 800;
        line-height: 1.15;
        margin: 0 0 16px;
        color: var(--color-text-light);
        letter-spacing: 0.01em;
    }
    .category-hero .hero-desc {
        font-size: 1.05rem;
        color: var(--color-text-muted-dark);
        max-width: 640px;
        line-height: 1.75;
    }
    .category-hero .hero-metrics {
        display: flex;
        flex-wrap: wrap;
        gap: 32px;
        margin-top: 28px;
    }
    .category-hero .hero-metric {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    .category-hero .hero-metric .metric-num {
        font-size: 1.65rem;
        font-weight: 800;
        color: var(--color-accent-orange);
        letter-spacing: -0.02em;
    }
    .category-hero .hero-metric .metric-label {
        font-size: 0.75rem;
        color: var(--color-text-muted-dark);
        letter-spacing: 0.04em;
    }

    /* ============ 编号导航条 ============ */
    .index-nav-bar {
        background: var(--color-bg-light);
        border-bottom: 1px solid var(--color-border-light);
        padding: 0;
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    }
    .index-nav-bar .container {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 4px;
        padding: 10px 20px;
    }
    .index-nav-bar .index-label {
        font-size: 0.72rem;
        font-weight: 700;
        color: var(--color-text-muted-light);
        letter-spacing: 0.08em;
        margin-right: 8px;
        white-space: nowrap;
    }
    .index-nav-bar .index-link {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 6px 10px;
        font-size: 0.78rem;
        font-weight: 700;
        color: var(--color-text-muted-light);
        background: var(--color-bg-light-secondary);
        border: 1px solid var(--color-border-light);
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        min-width: 34px;
        letter-spacing: 0.02em;
    }
    .index-nav-bar .index-link:hover {
        background: var(--color-bg-dark-secondary);
        color: var(--color-text-light);
        border-color: var(--color-accent-orange);
    }
    .index-nav-bar .index-link.current {
        background: var(--color-accent-orange);
        color: var(--color-bg-dark);
        border-color: var(--color-accent-orange);
    }

    /* ============ 名册列表 ============ */
    .roster-section {
        padding: 48px 0 64px;
    }
    .roster-section .roster-header {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        margin-bottom: 28px;
    }
    .roster-section .roster-header h2 {
        font-size: 1.55rem;
        font-weight: 700;
        margin: 0;
        color: var(--color-text-dark);
    }
    .roster-section .roster-header .roster-sub {
        font-size: 0.88rem;
        color: var(--color-text-muted-light);
    }
    .roster-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .roster-entry {
        display: flex;
        align-items: center;
        gap: 18px;
        background: #fff;
        border: 1px solid var(--color-border-light);
        border-radius: var(--radius-lg);
        padding: 14px 18px;
        box-shadow: var(--shadow-hard-sm);
        transition: all var(--transition-normal);
        position: relative;
    }
    .roster-entry:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-2px);
        border-color: rgba(255, 90, 31, 0.35);
    }
    .roster-entry::before {
        content: '';
        position: absolute;
        left: 0;
        top: 14px;
        bottom: 14px;
        width: 4px;
        background: var(--color-accent-orange);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        opacity: 0;
        transition: opacity var(--transition-fast);
    }
    .roster-entry:hover::before {
        opacity: 1;
    }
    .roster-entry .roster-img {
        flex-shrink: 0;
        width: 80px;
        height: 60px;
        border-radius: var(--radius-md);
        overflow: hidden;
        background: var(--color-bg-light-secondary);
    }
    .roster-entry .roster-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .roster-entry .roster-body {
        flex: 1;
        min-width: 0;
    }
    .roster-entry .roster-body .entry-top {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 4px;
    }
    .roster-entry .entry-id {
        font-size: 0.7rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        color: var(--color-accent-orange);
        padding: 3px 8px;
        background: rgba(255, 90, 31, 0.08);
        border-radius: var(--radius-sm);
        white-space: nowrap;
    }
    .roster-entry .entry-level {
        font-size: 0.7rem;
        font-weight: 600;
        color: var(--color-gold);
        padding: 3px 8px;
        background: rgba(231, 181, 59, 0.12);
        border-radius: var(--radius-sm);
        white-space: nowrap;
    }
    .roster-entry .entry-title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--color-text-dark);
        margin: 0;
        line-height: 1.35;
    }
    .roster-entry .entry-desc {
        font-size: 0.85rem;
        color: var(--color-text-muted-light);
        margin: 4px 0 0;
        line-height: 1.55;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .roster-entry .roster-tags {
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
    }
    .roster-entry .tag-group {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
        justify-content: flex-end;
    }
    .roster-entry .tag-group .mini-tag {
        font-size: 0.68rem;
        font-weight: 600;
        color: var(--color-text-muted-light);
        background: var(--color-bg-light-secondary);
        padding: 3px 8px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--color-border-light);
        white-space: nowrap;
    }
    .roster-entry .entry-status {
        font-size: 0.68rem;
        font-weight: 600;
        color: var(--color-success);
        display: flex;
        align-items: center;
        gap: 4px;
        white-space: nowrap;
    }
    .roster-entry .entry-status .dot {
        display: inline-block;
        width: 6px;
        height: 6px;
        background: var(--color-success);
        border-radius: 50%;
    }

    /* ============ 认证看点 ============ */
    .cert-highlights {
        background: var(--color-bg-dark);
        color: var(--color-text-light);
        padding: 56px 0;
    }
    .cert-highlights .section-heading {
        margin-bottom: 32px;
    }
    .cert-highlights .section-heading h2 {
        font-size: 1.55rem;
        font-weight: 700;
        margin: 0 0 8px;
        color: var(--color-text-light);
    }
    .cert-highlights .section-heading .section-sub {
        font-size: 0.9rem;
        color: var(--color-text-muted-dark);
        max-width: 560px;
    }
    .highlight-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .highlight-card {
        background: var(--color-bg-dark-secondary);
        border: 1px solid var(--color-border-dark);
        border-radius: var(--radius-lg);
        padding: 20px;
        transition: all var(--transition-normal);
    }
    .highlight-card:hover {
        border-color: rgba(255, 90, 31, 0.4);
        transform: translateY(-3px);
        box-shadow: var(--shadow-hard-md);
    }
    .highlight-card .hl-icon {
        font-size: 1.3rem;
        color: var(--color-accent-orange);
        margin-bottom: 10px;
    }
    .highlight-card h3 {
        font-size: 0.98rem;
        font-weight: 700;
        margin: 0 0 8px;
        color: var(--color-text-light);
    }
    .highlight-card p {
        font-size: 0.82rem;
        color: var(--color-text-muted-dark);
        margin: 0;
        line-height: 1.6;
    }

    /* ============ FAQ ============ */
    .faq-section {
        padding: 56px 0 64px;
    }
    .faq-section .section-heading {
        margin-bottom: 28px;
    }
    .faq-section .section-heading h2 {
        font-size: 1.55rem;
        font-weight: 700;
        margin: 0 0 8px;
        color: var(--color-text-dark);
    }
    .faq-section .section-heading .section-sub {
        font-size: 0.9rem;
        color: var(--color-text-muted-light);
    }
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 8px;
        max-width: 760px;
    }
    .faq-item {
        border: 1px solid var(--color-border-light);
        border-radius: var(--radius-lg);
        overflow: hidden;
        background: #fff;
        box-shadow: var(--shadow-hard-sm);
        transition: border-color var(--transition-fast);
    }
    .faq-item:hover {
        border-color: rgba(255, 90, 31, 0.3);
    }
    .faq-item.open {
        border-color: var(--color-gold);
    }
    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 16px 18px;
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--color-text-dark);
        background: var(--color-bg-light-secondary);
        text-align: left;
        transition: background var(--transition-fast), color var(--transition-fast);
    }
    .faq-question:hover {
        background: var(--color-bg-light);
    }
    .faq-item.open .faq-question {
        background: var(--color-bg-dark);
        color: var(--color-text-light);
    }
    .faq-question .faq-icon {
        flex-shrink: 0;
        font-size: 0.85rem;
        transition: transform var(--transition-normal);
        color: var(--color-accent-orange);
    }
    .faq-item.open .faq-question .faq-icon {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal), padding var(--transition-normal);
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
    }
    .faq-answer p {
        padding: 0 18px 16px;
        font-size: 0.88rem;
        color: var(--color-text-muted-light);
        margin: 0;
        line-height: 1.7;
    }

    /* ============ CTA ============ */
    .cta-section {
        background: var(--color-bg-dark);
        color: var(--color-text-light);
        padding: 64px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        top: -60px;
        left: 50%;
        transform: translateX(-50%);
        width: 400px;
        height: 200px;
        background: radial-gradient(ellipse at center, rgba(255, 90, 31, 0.2) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-section .container {
        position: relative;
        z-index: 1;
    }
    .cta-section h2 {
        font-size: clamp(1.5rem, 3vw, 2.1rem);
        font-weight: 800;
        margin: 0 0 12px;
        color: var(--color-text-light);
    }
    .cta-section p {
        font-size: 0.95rem;
        color: var(--color-text-muted-dark);
        max-width: 480px;
        margin: 0 auto 28px;
        line-height: 1.7;
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 32px;
        background: var(--color-accent-orange);
        color: var(--color-bg-dark);
        font-weight: 700;
        font-size: 0.95rem;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-hard-md);
        transition: all var(--transition-fast);
        letter-spacing: 0.02em;
    }
    .btn-primary:hover {
        background: var(--color-accent-orange-hover);
        transform: translateY(-2px);
        box-shadow: 0 10px 28px rgba(255, 90, 31, 0.3);
    }
    .btn-primary:focus-visible {
        outline: 2px solid var(--color-border-focus);
        outline-offset: 2px;
    }
    .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 13px 28px;
        background: transparent;
        color: var(--color-text-light);
        font-weight: 600;
        font-size: 0.9rem;
        border-radius: var(--radius-md);
        border: 1px solid var(--color-border-dark);
        transition: all var(--transition-fast);
        letter-spacing: 0.02em;
        margin-left: 12px;
    }
    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.25);
        transform: translateY(-2px);
    }
    .btn-secondary:focus-visible {
        outline: 2px solid var(--color-border-focus);
        outline-offset: 2px;
    }

    /* ============ 页脚 ============ */
    .site-footer {
        background: var(--color-bg-dark);
        color: var(--color-text-light);
        padding: 48px 0 0;
        border-top: 1px solid var(--color-border-dark);
    }
    .site-footer .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 32px;
        padding-bottom: 32px;
    }
    .site-footer h4 {
        font-size: 1.15rem;
        font-weight: 800;
        margin: 0 0 12px;
        color: var(--color-text-light);
    }
    .site-footer h5 {
        font-size: 0.85rem;
        font-weight: 700;
        margin: 0 0 12px;
        color: var(--color-text-light);
        letter-spacing: 0.04em;
    }
    .site-footer p {
        font-size: 0.82rem;
        color: var(--color-text-muted-dark);
        line-height: 1.65;
        margin: 0;
        max-width: 300px;
    }
    .site-footer ul {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    .site-footer ul a {
        font-size: 0.82rem;
        color: var(--color-text-muted-dark);
        transition: color var(--transition-fast);
    }
    .site-footer ul a:hover {
        color: var(--color-accent-orange);
    }
    .footer-bottom {
        border-top: 1px solid var(--color-border-dark);
        padding: 16px 0;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        font-size: 0.72rem;
        color: var(--color-text-muted-dark);
    }
    .footer-bottom a {
        color: var(--color-text-muted-dark);
        transition: color var(--transition-fast);
    }
    .footer-bottom a:hover {
        color: var(--color-accent-orange);
    }

    /* ============ 返回顶部 ============ */
    .back-to-top {
        position: fixed;
        right: 24px;
        bottom: 24px;
        width: 42px;
        height: 42px;
        background: var(--color-accent-orange);
        color: var(--color-bg-dark);
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: var(--shadow-hard-md);
        transition: all var(--transition-fast);
        z-index: 500;
        opacity: 0;
        visibility: hidden;
        transform: translateY(12px);
    }
    .back-to-top.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    .back-to-top:hover {
        background: var(--color-accent-orange-hover);
        transform: translateY(-2px);
    }
    .back-to-top:focus-visible {
        outline: 2px solid var(--color-border-focus);
        outline-offset: 2px;
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1200px) {
        .highlight-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
        .site-footer .footer-grid {
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 24px;
        }
        .site-footer .footer-brand {
            grid-column: span 3;
        }
        .site-footer .footer-brand p {
            max-width: 600px;
        }
    }
    @media (max-width: 1024px) {
        .site-nav {
            display: none;
        }
        .main-content {
            margin-left: 0;
            padding-top: 56px;
        }
        .mobile-header {
            display: flex;
        }
        .mobile-menu-overlay {
            display: flex;
        }
        .category-hero {
            padding: 36px 0 42px;
        }
        .category-hero .hero-metrics {
            gap: 20px;
        }
        .roster-entry {
            flex-wrap: wrap;
        }
        .roster-entry .roster-tags {
            width: 100%;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            padding-top: 8px;
            border-top: 1px solid var(--color-border-light);
        }
        .roster-entry .tag-group {
            justify-content: flex-start;
        }
    }
    @media (max-width: 768px) {
        .category-hero h1 {
            font-size: 1.7rem;
        }
        .category-hero .hero-metrics {
            gap: 14px;
            margin-top: 20px;
        }
        .category-hero .hero-metric .metric-num {
            font-size: 1.35rem;
        }
        .highlight-grid {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .highlight-card {
            padding: 16px;
        }
        .site-footer .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .site-footer .footer-brand {
            grid-column: span 1;
        }
        .roster-entry {
            padding: 12px 14px;
            gap: 12px;
        }
        .roster-entry .roster-img {
            width: 64px;
            height: 48px;
        }
        .roster-entry .entry-title {
            font-size: 0.95rem;
        }
        .roster-entry .entry-desc {
            font-size: 0.8rem;
            -webkit-line-clamp: 1;
        }
        .btn-secondary {
            margin-left: 0;
            margin-top: 10px;
        }
        .cta-section h2 {
            font-size: 1.4rem;
        }
        .index-nav-bar .container {
            gap: 2px;
            padding: 8px 12px;
        }
        .index-nav-bar .index-link {
            padding: 5px 7px;
            font-size: 0.7rem;
            min-width: 28px;
        }
    }
    @media (max-width: 480px) {
        .category-hero {
            padding: 28px 0 32px;
        }
        .category-hero h1 {
            font-size: 1.4rem;
        }
        .category-hero .hero-desc {
            font-size: 0.9rem;
        }
        .category-hero .hero-metrics {
            gap: 10px;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding-bottom: 4px;
        }
        .category-hero .hero-metric {
            flex-shrink: 0;
        }
        .category-hero .hero-metric .metric-num {
            font-size: 1.15rem;
        }
        .roster-section {
            padding: 32px 0 40px;
        }
        .roster-section .roster-header h2 {
            font-size: 1.25rem;
        }
        .roster-entry .roster-img {
            width: 52px;
            height: 40px;
        }
        .roster-entry .entry-title {
            font-size: 0.85rem;
        }
        .roster-entry .entry-id {
            font-size: 0.62rem;
            padding: 2px 6px;
        }
        .roster-entry .entry-level {
            font-size: 0.62rem;
            padding: 2px 6px;
        }
        .roster-entry .tag-group .mini-tag {
            font-size: 0.6rem;
            padding: 2px 6px;
        }
        .faq-section {
            padding: 36px 0 40px;
        }
        .faq-question {
            font-size: 0.85rem;
            padding: 12px 14px;
        }
        .faq-answer p {
            font-size: 0.8rem;
            padding: 0 14px 12px;
        }
        .cta-section {
            padding: 42px 0;
        }
        .cta-section h2 {
            font-size: 1.2rem;
        }
        .cta-section p {
            font-size: 0.82rem;
        }
        .btn-primary,
        .btn-secondary {
            font-size: 0.82rem;
            padding: 11px 20px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
            gap: 6px;
        }
    }