/* roulang page: index */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 整体布局 ===== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }

        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo span {
            white-space: nowrap;
        }

        .nav-logo .logo-accent {
            color: var(--accent);
        }

        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }

        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }

        .nav-link.active::before {
            height: 24px;
        }

        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: block;
            width: 100%;
            padding: 10px 16px;
            background: var(--primary);
            color: #fff;
            text-align: center;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(232, 62, 106, 0.35);
        }

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

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--dark-900);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            z-index: 1001;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }

        .mobile-logo .logo-accent {
            color: var(--accent);
        }

        .mobile-hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .mobile-hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-hamburger .bar {
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .mobile-hamburger.open .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-hamburger.open .bar:nth-child(2) {
            opacity: 0;
        }

        .mobile-hamburger.open .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-900);
            z-index: 1000;
            padding: 16px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }

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

        .mobile-drawer .nav-link {
            padding: 14px 16px;
            font-size: 15px;
        }

        .mobile-drawer .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 480px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 22, 26, 0.82) 0%, rgba(22, 22, 26, 0.55) 60%, rgba(232, 62, 106, 0.35) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 1;
            width: 100%;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .hero-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: var(--accent-transparent);
            color: var(--accent-light);
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            border: 1px solid rgba(245, 166, 35, 0.25);
        }

        .hero-badge.primary-badge {
            background: rgba(232, 62, 106, 0.2);
            color: #FFA8BF;
            border-color: rgba(232, 62, 106, 0.3);
        }

        .hero-title {
            font-size: clamp(28px, 4vw, 46px);
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

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

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-light-muted);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 32px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

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

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 62, 106, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.3);
        }

        .btn-accent {
            background: var(--accent);
            color: #1A1A1A;
            border: 2px solid var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
        }

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

        .btn-outline-light {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(245, 241, 236, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(245, 241, 236, 0.1);
            border-color: rgba(245, 241, 236, 0.7);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(245, 241, 236, 0.7);
            letter-spacing: 0.5px;
        }

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

        .section-alt {
            background: #fff;
        }

        .section-dark {
            background: var(--dark-800);
            color: var(--text-light);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--primary-transparent);
            color: var(--primary);
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .section-dark .section-tag {
            background: rgba(232, 62, 106, 0.25);
            color: #FFA8BF;
        }

        .section-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-title {
            color: var(--text-light);
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 650px;
            line-height: 1.8;
        }

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

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

        .metric-card {
            background: #fff;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .metric-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
        }

        .metric-number.accent {
            color: var(--accent);
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-mid);
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* ===== 服务矩阵 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 4px;
        }

        .service-icon.accent-bg {
            background: var(--accent-transparent);
        }

        .service-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
            transition: all var(--transition);
        }

        .service-link:hover {
            color: var(--primary-dark);
            transform: translateX(4px);
        }

        /* ===== 结果对比 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .compare-card {
            border-radius: var(--radius-card);
            padding: 32px 28px;
            border: 1px solid;
        }

        .compare-card.before {
            background: #F0F0F0;
            border-color: #D5D5D5;
        }

        .compare-card.after {
            background: linear-gradient(135deg, rgba(232, 62, 106, 0.06) 0%, rgba(232, 62, 106, 0.12) 100%);
            border-color: var(--primary-light);
        }

        .compare-label {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .compare-label.before-label {
            background: #E0E0E0;
            color: #666;
        }

        .compare-label.after-label {
            background: var(--primary-transparent);
            color: var(--primary);
        }

        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-mid);
        }

        .compare-item .compare-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 7px;
        }

        .before .compare-dot {
            background: #B0B0B0;
        }

        .after .compare-dot {
            background: var(--primary);
        }

        .compare-item strong {
            color: var(--text-dark);
        }

        /* ===== 品牌介绍 ===== */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-mid);
        }

        .brand-intro-text p+p {
            margin-top: 16px;
        }

        .brand-intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .brand-intro-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* ===== 资讯动态 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }

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

        .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 8px;
            border-bottom: 1px solid var(--light-border);
            transition: all var(--transition);
            cursor: pointer;
            border-radius: 8px;
        }

        .news-item:hover {
            background: rgba(232, 62, 106, 0.03);
            padding-left: 16px;
        }

        .news-date {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            font-size: 13px;
            color: var(--text-mid);
            font-weight: 500;
            background: var(--light-bg);
            border-radius: 8px;
            padding: 8px 4px;
            height: fit-content;
        }

        .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .news-sidebar {
            background: #fff;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .news-sidebar h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-sidebar-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 12px;
            border-radius: 8px;
            background: var(--light-bg);
            font-size: 14px;
            color: var(--text-mid);
            transition: all var(--transition);
        }

        .news-sidebar-item:hover {
            background: var(--primary-transparent);
            color: var(--primary);
        }

        .news-sidebar-item .tag {
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 20px;
            background: var(--accent-transparent);
            color: #B8860B;
            font-weight: 600;
        }

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

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

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

        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .review-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .review-role {
            font-size: 12px;
            color: var(--text-mid);
        }

        .review-text {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            flex: 1;
        }

        .review-rating {
            color: var(--accent);
            font-size: 14px;
            letter-spacing: 2px;
        }

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

        .partner-card {
            background: #fff;
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .partner-card:hover {
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .partner-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .partner-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .partner-desc {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--light-border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: #D0C8C0;
        }

        .faq-item.open {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            transition: all var(--transition);
            user-select: none;
            gap: 16px;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== 转化表单 ===== */
        .form-section {
            background: var(--dark-800);
            color: var(--text-light);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .form-info h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .form-info p {
            color: var(--text-light-muted);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-light-muted);
            line-height: 1.6;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 16px;
        }

        .form-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 32px;
            backdrop-filter: blur(10px);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-input,
        .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-light);
            font-size: 15px;
            transition: all var(--transition);
        }

        .form-input::placeholder,
        .form-textarea::placeholder {
            color: rgba(245, 241, 236, 0.4);
        }

        .form-input:focus,
        .form-textarea:focus {
            border-color: var(--primary);
            outline: 2px solid rgba(232, 62, 106, 0.35);
            outline-offset: 1px;
            background: rgba(255, 255, 255, 0.1);
        }

        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--accent);
            color: #1A1A1A;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
            border: 2px solid var(--accent);
        }

        .form-submit-btn:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
        }

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

        .form-submit-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            color: var(--text-light-muted);
            padding: 48px 0 24px;
        }

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

        .footer-brand .nav-logo {
            font-size: 22px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-light-muted);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-copy {
            font-size: 13px;
            color: var(--text-light-muted);
        }

        .footer-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-light-muted);
        }

        .footer-meta a {
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 220px;
                --section-gap: 60px;
            }

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

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

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

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

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

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

            .brand-intro {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

        @media (max-width: 767px) {
            :root {
                --section-gap: 48px;
            }

            .side-nav {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-drawer {
                display: block;
            }

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

            .hero {
                min-height: 380px;
            }

            .hero .container {
                padding-top: 40px;
                padding-bottom: 40px;
            }

            .hero-title {
                font-size: clamp(24px, 6vw, 32px);
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat-number {
                font-size: 24px;
            }

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

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

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

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

            .metric-number {
                font-size: 28px;
            }

            .compare-card {
                padding: 24px 18px;
            }

            .news-item {
                flex-direction: column;
                gap: 8px;
            }

            .news-date {
                width: 100%;
                text-align: left;
                background: none;
                padding: 0;
            }

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

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

            .section-title {
                font-size: 22px;
            }

            .form-card {
                padding: 20px;
            }
        }

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

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

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

            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        @media (max-width: 1023px) {
            :root {
                --nav-width: 0px;
                --section-gap: 48px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
            }
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        @media (max-width: 1023px) {
            .main-content {
                margin-left: 0;
            }
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }

        @media (max-width: 1023px) {
            .side-nav {
                width: 260px;
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
        }

        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo span {
            white-space: nowrap;
        }

        .nav-logo .logo-accent {
            color: var(--accent);
        }

        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }

        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }

        .nav-link.active::before {
            height: 24px;
        }

        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: block;
            text-align: center;
            padding: 12px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition);
            letter-spacing: 1px;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--dark-900);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        @media (max-width: 1023px) {
            .mobile-nav {
                display: flex;
            }
        }

        .mobile-nav .nav-logo {
            font-size: 17px;
        }

        .mobile-nav .nav-logo-icon {
            width: 30px;
            height: 30px;
            font-size: 15px;
            border-radius: 8px;
        }

        .hamburger-btn {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            transition: background var(--transition);
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

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

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

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

        @media (min-width: 1024px) {
            .nav-overlay.visible {
                display: none;
            }
        }

        /* ===== 板块标题通用 ===== */
        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            background: var(--primary-transparent);
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.35;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-mid);
            margin: 0 0 32px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ===== 分类页 Banner ===== */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 340px;
            display: flex;
            align-items: center;
            color: var(--text-light);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 22, 26, 0.88) 0%, rgba(22, 22, 26, 0.62) 50%, rgba(22, 22, 26, 0.82) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .page-banner-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-badge);
            background: var(--accent-transparent);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            border: 1px solid rgba(245, 166, 35, 0.3);
            margin-bottom: 16px;
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 900;
            margin: 0 0 14px;
            letter-spacing: 1px;
            line-height: 1.3;
            color: #fff;
        }

        .page-banner h1 .banner-accent {
            color: var(--accent-light);
        }

        .page-banner .banner-desc {
            font-size: 16px;
            color: var(--text-light-muted);
            max-width: 580px;
            line-height: 1.8;
            margin: 0;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 20px;
            font-size: 14px;
            color: var(--text-light-muted);
        }

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

        .banner-meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        @media (max-width: 767px) {
            .page-banner {
                min-height: 260px;
                padding-top: 70px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .banner-desc {
                font-size: 14px;
            }
            .banner-meta {
                gap: 14px;
                font-size: 12px;
            }
        }

        /* ===== 筛选标签 ===== */
        .filter-section {
            padding: 28px 0 8px;
            background: var(--light-bg);
            border-bottom: 1px solid var(--light-border);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        @media (max-width: 1023px) {
            .filter-section {
                top: 60px;
            }
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-mid);
            margin-right: 6px;
            letter-spacing: 0.5px;
        }

        .filter-tag {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid var(--light-border);
            background: var(--light-card);
            color: var(--text-mid);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-transparent);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(232, 62, 106, 0.3);
        }

        /* ===== 信息流列表卡片 ===== */
        .feed-section {
            padding: 36px 0 60px;
        }

        .feed-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .feed-card {
            display: flex;
            background: var(--light-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--light-border);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
        }

        .feed-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .feed-card-img {
            width: 280px;
            min-height: 200px;
            flex-shrink: 0;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .feed-card-img .img-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: rgba(22, 22, 26, 0.75);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            backdrop-filter: blur(6px);
        }

        .feed-card-body {
            padding: 20px 24px;
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .feed-card-top {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .feed-card-tag {
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 700;
            background: var(--primary-transparent);
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .feed-card-tag.accent {
            background: var(--accent-transparent);
            color: #D4880F;
        }

        .feed-card-date {
            font-size: 12px;
            color: var(--text-mid);
        }

        .feed-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.5;
            letter-spacing: 0.3px;
        }

        .feed-card-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.8;
            margin: 0 0 12px;
            flex: 1;
        }

        .feed-card-footer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .feed-card-footer .arrow {
            transition: transform var(--transition);
        }

        .feed-card:hover .feed-card-footer .arrow {
            transform: translateX(4px);
        }

        @media (max-width: 767px) {
            .feed-card {
                flex-direction: column;
            }
            .feed-card-img {
                width: 100%;
                min-height: 170px;
            }
            .feed-card-body {
                padding: 16px 18px;
            }
            .feed-card-title {
                font-size: 16px;
            }
        }

        /* ===== 底部 CTA ===== */
        .cta-section {
            background: var(--dark-900);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(232, 62, 106, 0.12);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.08);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 1px;
        }

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

        .cta-section p {
            color: var(--text-light-muted);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 1px;
            transition: all var(--transition);
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 62, 106, 0.35);
        }

        .btn-primary:focus {
            outline: 2px solid var(--accent-light);
            outline-offset: 3px;
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-secondary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--accent-light);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 1px;
            transition: all var(--transition);
            border: 2px solid var(--accent);
        }

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

        .btn-secondary:focus {
            outline: 2px solid var(--accent-light);
            outline-offset: 3px;
        }

        .btn-secondary:active {
            transform: scale(0.97);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-light-muted);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .site-footer .footer-brand .nav-logo {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
            color: var(--text-light-muted);
            max-width: 360px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 1px;
        }

        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }

        .site-footer .footer-copy {
            font-size: 13px;
        }

        .site-footer .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 12px;
            color: var(--text-light-muted);
            align-items: center;
        }

        .site-footer .footer-meta a {
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        @media (max-width: 767px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ===== 回到顶部浮动按钮 ===== */
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            z-index: 900;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        @media (min-width: 1024px) {
            .back-to-top {
                right: 32px;
                bottom: 32px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }
        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-logo span {
            white-space: nowrap;
        }
        .nav-logo .logo-accent {
            color: var(--accent);
        }
        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }
        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }
        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }
        .nav-link.active::before {
            height: 24px;
        }
        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }
        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .nav-cta-btn {
            display: block;
            text-align: center;
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(232, 62, 106, 0.35);
            transform: translateY(-2px);
        }
        .nav-cta-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--dark-900);
            z-index: 1001;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-header .nav-logo {
            font-size: 18px;
        }
        .mobile-header .nav-logo-icon {
            width: 32px;
            height: 32px;
            font-size: 16px;
            border-radius: 8px;
        }
        .hamburger-btn {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            cursor: pointer;
            transition: background var(--transition);
            gap: 5px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: var(--dark-900);
            z-index: 1000;
            padding: 12px 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            max-height: calc(100vh - 60px);
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            transition: all 0.3s ease;
        }
        .mobile-drawer.open {
            display: flex;
        }

        /* ===== 页面横幅 Banner ===== */
        .page-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(22, 22, 26, 0.68);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            padding: 64px 0 48px;
            max-width: 780px;
        }
        .page-banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-transparent);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(245, 166, 35, 0.3);
        }
        .page-banner-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .page-banner h1 .highlight-accent {
            color: var(--accent);
            position: relative;
        }
        .page-banner p {
            font-size: 17px;
            color: var(--text-light-muted);
            line-height: 1.8;
            max-width: 620px;
        }
        .page-banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .page-banner-tags .tag {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            backdrop-filter: blur(4px);
        }

        /* ===== 通用板块样式 ===== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-light {
            background: var(--light-bg);
        }
        .section-white {
            background: #fff;
        }
        .section-dark {
            background: var(--dark-800);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }
        .section-header .section-sub {
            font-size: 15px;
            color: var(--text-mid);
            margin-top: 12px;
            max-width: 600px;
            line-height: 1.8;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header .section-sub {
            color: var(--text-light-muted);
        }
        .section-dark .section-header .section-label {
            color: var(--accent-light);
        }

        /* ===== 深度展示区 ===== */
        .deep-showcase {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .deep-showcase.reverse {
            grid-template-columns: 1fr 1.5fr;
        }
        .showcase-image-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .showcase-image-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
        }
        .showcase-image-card img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .showcase-image-card:hover img {
            transform: scale(1.03);
        }
        .showcase-image-card .image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 24px;
            background: linear-gradient(transparent, rgba(22, 22, 26, 0.85));
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .showcase-number-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .number-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 22px;
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }
        .number-list-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .number-list-item .number-badge {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-transparent);
            color: var(--primary);
            font-weight: 900;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .number-list-item:hover .number-badge {
            background: var(--primary);
            color: #fff;
        }
        .number-list-item .item-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .number-list-item .item-body p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.65;
        }
        .side-note-box {
            margin-top: 24px;
            padding: 20px 22px;
            background: var(--accent-transparent);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
        }
        .side-note-box h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-note-box h5::before {
            content: '◈';
            color: var(--accent);
            font-size: 12px;
        }
        .side-note-box p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== 流程步骤 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .process-step .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-transparent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 22px;
            transition: all var(--transition);
        }
        .process-step:hover .step-icon {
            background: var(--primary);
            color: #fff;
        }
        .process-step .step-number {
            font-size: 12px;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 4px;
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* ===== 数据指标 ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--dark-700);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
        }
        .metric-card:hover {
            border-color: var(--accent);
            box-shadow: 0 0 24px rgba(245, 166, 35, 0.12);
            transform: translateY(-4px);
        }
        .metric-card .metric-number {
            font-size: 42px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .metric-card .metric-label {
            font-size: 14px;
            color: var(--text-light-muted);
            font-weight: 500;
        }
        .metric-card .metric-detail {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin-top: 6px;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: all var(--transition);
            user-select: none;
            gap: 16px;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
        }
        .faq-question:hover {
            background: var(--primary-transparent);
            color: var(--primary);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-transparent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            font-size: 16px;
            font-weight: 700;
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA 表单 ===== */
        .cta-section {
            background: var(--dark-900);
            padding: 72px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .cta-info p {
            font-size: 15px;
            color: var(--text-light-muted);
            line-height: 1.8;
        }
        .cta-info .cta-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .cta-info .cta-trust span {
            font-size: 12px;
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
            padding: 6px 12px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .cta-form {
            background: var(--dark-800);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px 28px;
        }
        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .cta-form .form-field {
            margin-bottom: 16px;
        }
        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition);
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 62, 106, 0.25);
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-form textarea {
            resize: vertical;
            min-height: 80px;
        }
        .cta-form .form-submit-btn {
            display: block;
            width: 100%;
            padding: 14px 20px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 1px;
            border: none;
        }
        .cta-form .form-submit-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(232, 62, 106, 0.4);
            transform: translateY(-2px);
        }
        .cta-form .form-submit-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.3);
        }
        .cta-form .form-submit-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .cta-form .form-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 12px;
            text-align: center;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 24px;
            color: var(--text-light-muted);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-light-muted);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-light-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .footer-copy {
            font-size: 13px;
            color: var(--text-light-muted);
        }
        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-meta a {
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--transition);
        }
        .footer-meta a:hover {
            color: var(--accent-light);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1023px) {
            :root {
                --nav-width: 220px;
                --section-gap: 60px;
            }
            .side-nav {
                width: var(--nav-width);
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .deep-showcase,
            .deep-showcase.reverse {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 48px;
            }
            .side-nav {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-drawer {
                display: none;
            }
            .mobile-drawer.open {
                display: flex;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 27px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .page-banner-content {
                padding: 40px 0 32px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .cta-form .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-meta {
                justify-content: center;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .footer-meta {
                flex-direction: column;
                gap: 6px;
            }
            .footer-meta span,
            .footer-meta a {
                font-size: 11px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }

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

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

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

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

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }

        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo span {
            white-space: nowrap;
        }

        .nav-logo .logo-accent {
            color: var(--accent);
        }

        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }

        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }

        .nav-link.active::before {
            height: 24px;
        }

        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: block;
            text-align: center;
            background: var(--primary);
            color: #fff;
            padding: 10px 16px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(232, 62, 106, 0.35);
            transform: translateY(-1px);
        }

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

        /* ===== 移动端顶部导航 ===== */
        .mobile-top-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--dark-900);
            z-index: 1000;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-light);
            font-weight: 800;
            font-size: 17px;
        }

        .mobile-logo .nav-logo-icon {
            width: 30px;
            height: 30px;
            font-size: 15px;
            border-radius: 8px;
        }

        .mobile-logo .logo-accent {
            color: var(--accent);
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .hamburger-btn svg {
            width: 24px;
            height: 24px;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-900);
            z-index: 999;
            padding: 16px;
            overflow-y: auto;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer .nav-link {
            font-size: 15px;
            padding: 14px 16px;
        }

        .mobile-drawer .nav-cta-btn {
            margin-top: 12px;
        }

        /* ===== 页头横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--dark-900) 0%, var(--dark-800) 55%, #2A1A28 100%);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 62, 106, 0.24) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.14) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-banner-content {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 32px;
        }

        .page-banner-text {
            flex: 1;
            min-width: 300px;
        }

        .banner-badge {
            display: inline-block;
            background: var(--accent-transparent);
            color: var(--accent-light);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.8px;
            margin-bottom: 16px;
            border: 1px solid rgba(245, 166, 35, 0.25);
        }

        .banner-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 12px;
        }

        .banner-subtitle {
            font-size: 16px;
            color: var(--text-light-muted);
            max-width: 580px;
            line-height: 1.8;
        }

        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            min-width: 260px;
            align-self: center;
        }

        .banner-stat-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            text-align: center;
            min-width: 100px;
            flex: 1;
        }

        .banner-stat-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .banner-stat-label {
            font-size: 12px;
            color: var(--text-light-muted);
            margin-top: 4px;
        }

        /* ===== 指标概览横条 ===== */
        .overview-strip {
            padding: 40px 0 0;
        }

        .overview-strip-inner {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            box-shadow: var(--shadow-sm);
        }

        .overview-strip-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-mid);
            letter-spacing: 1px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .overview-strip-label svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
        }

        .overview-items {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            flex: 1;
        }

        .overview-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .overview-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        .overview-dot.accent {
            background: var(--accent);
        }

        .overview-dot.green {
            background: #4CAF7D;
        }

        .overview-item strong {
            font-weight: 700;
            color: var(--text-dark);
        }

        /* ===== 数据卡片网格 ===== */
        .data-cards-section {
            padding: 48px 0 0;
        }

        .section-header {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 28px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-mid);
            max-width: 500px;
            line-height: 1.7;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .data-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(232, 62, 106, 0.3);
        }

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

        .data-card.accent::before {
            background: var(--accent);
        }

        .data-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
        }

        .data-card-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
        }

        .data-card.accent .data-card-icon {
            background: var(--accent-transparent);
            color: var(--accent);
        }

        .data-trend {
            font-size: 12px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 3px;
        }

        .data-trend.up {
            color: #4CAF7D;
        }

        .data-trend.down {
            color: var(--primary);
        }

        .data-card-value {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .data-card-value .unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-mid);
            margin-left: 2px;
        }

        .data-card-label {
            font-size: 13px;
            color: var(--text-mid);
            margin-top: 4px;
        }

        .data-card-meta {
            font-size: 12px;
            color: var(--text-mid);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--light-border);
            opacity: 0.8;
        }

        /* ===== 双列对比 ===== */
        .comparison-section {
            padding: 56px 0 0;
        }

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

        .comparison-panel {
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--light-border);
        }

        .comparison-panel.before {
            background: #F0EEEA;
            border-color: #E2DED7;
        }

        .comparison-panel.after {
            background: linear-gradient(135deg, var(--primary-transparent) 0%, rgba(245, 166, 35, 0.08) 100%);
            border-color: rgba(232, 62, 106, 0.25);
        }

        .comparison-panel-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .comparison-badge {
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }

        .comparison-panel.before .comparison-badge {
            background: #D9D5CE;
            color: #5A5752;
        }

        .comparison-panel.after .comparison-badge {
            background: var(--primary);
            color: #fff;
        }

        .comparison-panel-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .comparison-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .comparison-list-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark);
            line-height: 1.6;
        }

        .comparison-list-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
            margin-top: 3px;
        }

        .comparison-panel.before .comparison-list-icon {
            background: #CFCCC6;
            color: #6B6863;
        }

        .comparison-panel.after .comparison-list-icon {
            background: var(--primary);
            color: #fff;
        }

        .comparison-list-item strong {
            font-weight: 700;
        }

        /* ===== 使用流程 ===== */
        .process-section {
            padding: 56px 0 0;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .process-step {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(232, 62, 106, 0.25);
        }

        .process-step-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 8px;
        }

        .process-step-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .process-step-desc {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0 80px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 28px;
        }

        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: rgba(232, 62, 106, 0.35);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            transition: color var(--transition);
            user-select: none;
        }

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

        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            transition: all var(--transition);
            font-weight: 700;
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-content {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.8;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            padding: 48px 0 24px;
            color: var(--text-light-muted);
            font-size: 14px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-light-muted);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
        }

        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            opacity: 0.75;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 72px;
                --section-gap: 60px;
            }

            .side-nav-header {
                padding: 16px 12px;
                text-align: center;
            }

            .nav-logo span:not(.nav-logo-icon) {
                display: none;
            }

            .nav-logo {
                justify-content: center;
            }

            .nav-link span:not(.nav-link-icon) {
                display: none;
            }

            .nav-link {
                justify-content: center;
                padding: 12px;
            }

            .nav-link::before {
                display: none;
            }

            .nav-link-icon {
                font-size: 18px;
            }

            .nav-cta-btn {
                font-size: 0;
                padding: 12px;
            }

            .nav-cta-btn::after {
                content: '→';
                font-size: 16px;
                font-weight: 700;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --section-gap: 48px;
            }

            .side-nav {
                transform: translateX(-100%);
            }

            .side-nav.open {
                transform: translateX(0);
                width: 260px;
            }

            .side-nav.open .nav-logo span:not(.nav-logo-icon) {
                display: block;
            }

            .side-nav.open .nav-link span:not(.nav-link-icon) {
                display: block;
            }

            .side-nav.open .nav-link {
                justify-content: flex-start;
                padding: 12px 16px;
            }

            .side-nav.open .nav-cta-btn {
                font-size: 14px;
                padding: 10px 16px;
            }

            .side-nav.open .nav-cta-btn::after {
                content: none;
            }

            .main-content {
                margin-left: 0;
            }

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

            .main-content {
                padding-top: 56px;
            }

            .page-banner {
                padding: 32px 0 28px;
            }

            .banner-title {
                font-size: 28px;
            }

            .banner-subtitle {
                font-size: 14px;
            }

            .banner-stats {
                flex-wrap: wrap;
                width: 100%;
            }

            .banner-stat-item {
                min-width: calc(50% - 10px);
            }

            .overview-strip-inner {
                padding: 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .overview-items {
                gap: 10px 20px;
            }

            .overview-item {
                font-size: 13px;
            }

            .section-title {
                font-size: 22px;
            }

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

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

            .process-steps {
                grid-template-columns: 1fr;
            }

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

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

        @media (max-width: 520px) {
            .banner-title {
                font-size: 24px;
            }

            .data-card-value {
                font-size: 28px;
            }

            .comparison-panel {
                padding: 20px 16px;
            }
        }

        /* ===== 表单区 ===== */
        .contact-form-section {
            padding: 56px 0 80px;
        }

        .form-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--dark-800);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            color: var(--text-light);
        }

        .form-info h3 {
            font-size: 22px;
            font-weight: 700;
;
            margin-bottom: 10px;
            color: #fff;
        }

        .form-info p {
            font-size: 14px;
            color: var(--text-light-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-light-muted);
            opacity: 0.8;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 14px;
            margin-top: 16px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-input {
            width: 100%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-input);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-light);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-input::placeholder {
            color: rgba(245, 241, 236, 0.45);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 62, 106, 0.2);
        }

        textarea.form-input {
            resize: vertical;
            min-height: 90px;
        }

        .form-submit {
            width: 100%;
            background: var(--accent);
            color: #1A1A1A;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .form-submit:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(245, 166, 35, 0.35);
        }

        .form-submit:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .form-submit:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        /* 结束设计系统样式 */

/* roulang page: category4 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        @media (max-width: 1200px) {
            :root { --nav-width: 220px; --section-gap: 60px; }
        }
        @media (max-width: 767px) {
            :root { --section-gap: 48px; }
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul, ol, li {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, p {
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .main-content {
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }
        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-logo span {
            white-space: nowrap;
        }
        .nav-logo .logo-accent {
            color: var(--accent);
        }
        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }
        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }
        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }
        .nav-link.active::before {
            height: 24px;
        }
        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }
        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }
        .nav-cta-btn {
            display: block;
            text-align: center;
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(232, 62, 106, 0.35);
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-top-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--dark-900);
            z-index: 1100;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-top-bar .nav-logo {
            font-size: 18px;
        }
        .mobile-top-bar .nav-logo-icon {
            width: 32px;
            height: 32px;
            font-size: 15px;
        }
        .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 22px;
            cursor: pointer;
            transition: background var(--transition);
        }
        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1050;
        }
        .mobile-drawer-overlay.open {
            display: block;
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(22, 22, 26, 0.78) 0%, rgba(22, 22, 26, 0.55) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .banner-content {
            max-width: 720px;
            padding: 48px 0;
        }
        .banner-badge-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: var(--accent-transparent);
            color: var(--accent-light);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid rgba(245, 166, 35, 0.25);
        }
        .banner-title {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .banner-title .highlight {
            color: var(--primary-light);
        }
        .banner-sub {
            font-size: 16px;
            color: var(--text-light-muted);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .banner-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
            border: 2px solid transparent;
            min-height: 48px;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 62, 106, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: #1a1a1a;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #e8950f;
            border-color: #e8950f;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 166, 35, 0.35);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(245, 166, 35, 0.2);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }

        /* ===== 筛选标签区 ===== */
        .filter-section {
            padding: 28px 0;
            background: var(--light-card);
            border-bottom: 1px solid var(--light-border);
            position: sticky;
            top: 0;
            z-index: 50;
        }
        .filter-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            margin-right: 6px;
            white-space: nowrap;
        }
        .filter-tag {
            padding: 7px 16px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            background: var(--light-bg);
            border: 1px solid var(--light-border);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-transparent);
        }
        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.25);
        }

        /* ===== 案例交错卡片流 ===== */
        .case-stream-section {
            padding: var(--section-gap) 0;
            background: var(--light-bg);
        }
        .section-heading {
            margin-bottom: 40px;
        }
        .section-heading h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 600px;
            line-height: 1.75;
        }
        .case-stream {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
        .case-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            opacity: 1;
            transition: all var(--transition);
        }
        .case-item.hidden-by-filter {
            display: none;
        }
        .case-item.reverse .case-image-wrap {
            order: 2;
        }
        .case-item.reverse .case-text-wrap {
            order: 1;
        }
        .case-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            background: var(--dark-700);
        }
        .case-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-image-wrap:hover img {
            transform: scale(1.03);
        }
        .case-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 18px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent);
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            z-index: 2;
        }
        .case-image-overlay .mini-tag {
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            background: rgba(0, 0, 0, 0.5);
            color: #fff;
            font-size: 11px;
            font-weight: 500;
            letter-spacing: 0.4px;
            backdrop-filter: blur(4px);
        }
        .case-text-wrap {
            padding: 8px 0;
        }
        .case-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .case-tag {
            padding: 5px 12px;
            border-radius: var(--radius-badge);
            background: var(--primary-transparent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            border: 1px solid rgba(232, 62, 106, 0.15);
        }
        .case-tag.accent-tag {
            background: var(--accent-transparent);
            color: #D48A0A;
            border-color: rgba(245, 166, 35, 0.2);
        }
        .case-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .case-desc {
            font-size: 14.5px;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 480px;
        }
        .case-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            border-top: 1px solid var(--light-border);
            padding-top: 14px;
        }
        .case-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .case-stat-num {
            font-size: 26px;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 0.5px;
            font-variant-numeric: tabular-nums;
        }
        .case-stat-num.accent-num {
            color: var(--accent);
        }
        .case-stat-label {
            font-size: 12px;
            color: var(--text-mid);
            font-weight: 500;
        }

        /* ===== 数据指标横条 ===== */
        .metrics-strip {
            padding: 52px 0;
            background: var(--dark-900);
        }
        .metrics-strip .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .metric-cell {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .metric-cell:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-3px);
        }
        .metric-num {
            font-size: 38px;
            font-weight: 900;
            color: var(--accent-light);
            letter-spacing: 0.5px;
            font-variant-numeric: tabular-nums;
        }
        .metric-label {
            font-size: 13px;
            color: var(--text-light-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== 场景要点区 ===== */
        .scene-points-section {
            padding: var(--section-gap) 0;
            background: var(--light-card);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .scene-point-card {
            padding: 24px 22px;
            border-radius: var(--radius-card);
            border: 1px solid var(--light-border);
            background: var(--light-bg);
            transition: all var(--transition);
        }
        .scene-point-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .scene-point-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
            color: var(--primary);
        }
        .scene-point-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .scene-point-card p {
            font-size: 13.5px;
            color: var(--text-mid);
            line-height: 1.75;
        }

        /* ===== FAQ 区 ===== */
        .faq-section {
            padding: var(--section-gap) 0;
            background: var(--light-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border-radius: var(--radius-card);
            border: 1px solid var(--light-border);
            background: var(--light-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            text-align: left;
            transition: all var(--transition);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--light-bg);
            border: 1px solid var(--light-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition);
            color: var(--text-mid);
        }
        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 22px 18px 22px;
        }

        /* ===== CTA 表单区 ===== */
        .cta-section {
            padding: var(--section-gap) 0;
            background: var(--dark-900);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .cta-info p {
            font-size: 15px;
            color: var(--text-light-muted);
            line-height: 1.8;
            margin-bottom: 18px;
            max-width: 460px;
        }
        .cta-privacy {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.6;
        }
        .cta-form-wrap {
            background: var(--dark-800);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .cta-form-wrap h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--text-light-muted);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-input);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition);
            min-height: 46px;
        }
        .form-input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .form-input:focus {
            border-color: var(--primary);
            outline: 3px solid rgba(232, 62, 106, 0.2);
            background: rgba(255, 255, 255, 0.08);
        }
        .form-input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 1px;
        }
        textarea.form-input {
            resize: vertical;
            min-height: 90px;
            font-family: inherit;
            line-height: 1.6;
        }
        .form-submit-btn {
            width: 100%;
            padding: 13px 20px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
            min-height: 48px;
            border: 2px solid transparent;
        }
        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 62, 106, 0.3);
        }
        .form-submit-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(232, 62, 106, 0.2);
        }
        .form-submit-btn:focus-visible {
            outline: 3px solid rgba(232, 62, 106, 0.5);
            outline-offset: 2px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13.5px;
            color: var(--text-light-muted);
            line-height: 1.7;
            max-width: 380px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 13.5px;
            color: var(--text-light-muted);
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .footer-copy {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 14px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-meta a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }
        .footer-meta a:hover {
            color: var(--accent-light);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1023px) {
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .side-nav {
                transform: translateX(-100%);
                width: 260px;
            }
            .side-nav.open {
                transform: translateX(0);
                box-shadow: 0 0 40px rgba(0, 0, 0, 0.4);
            }
            .mobile-top-bar {
                display: flex;
            }
            .case-item {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .case-item.reverse .case-image-wrap {
                order: 1;
            }
            .case-item.reverse .case-text-wrap {
                order: 2;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .metrics-strip .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767px) {
            .banner-title {
                font-size: 28px;
            }
            .banner-sub {
                font-size: 14px;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .case-title {
                font-size: 18px;
            }
            .case-stat-num {
                font-size: 22px;
            }
            .case-stats {
                gap: 16px;
            }
            .metrics-strip .container {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-num {
                font-size: 28px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .case-stats {
                flex-wrap: wrap;
            }
            .page-banner {
                min-height: 280px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
                min-height: 42px;
            }
            .banner-actions {
                gap: 10px;
            }
        }
        @media (max-width: 480px) {
            .banner-title {
                font-size: 24px;
            }
            .case-item {
                gap: 14px;
            }
            .case-stats {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 12px;
            }
            .case-stat-num {
                font-size: 20px;
            }
            .metric-num {
                font-size: 24px;
            }
            .filter-row {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }

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

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

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

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

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }

        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo span {
            white-space: nowrap;
        }

        .nav-logo .logo-accent {
            color: var(--accent);
        }

        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }

        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }

        .nav-link.active::before {
            height: 24px;
        }

        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: block;
            width: 100%;
            padding: 12px 16px;
            background: var(--primary);
            color: #fff;
            text-align: center;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--dark-900);
            z-index: 1100;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-header .nav-logo {
            font-size: 18px;
        }

        .mobile-header .nav-logo-icon {
            width: 32px;
            height: 32px;
            font-size: 16px;
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 22px;
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark-900);
            z-index: 1090;
            overflow-y: auto;
            padding: 16px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer .nav-link {
            font-size: 16px;
            padding: 14px 16px;
        }

        .mobile-drawer .nav-cta-btn {
            margin-top: 12px;
        }

        /* ===== Hero 标题区 ===== */
        .hero-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(22, 22, 26, 0.72);
            z-index: 1;
        }

        .hero-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            background: var(--accent-transparent);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            border: 1px solid rgba(245, 166, 35, 0.25);
        }

        .hero-banner h1 {
            font-size: 42px;
            font-weight: 900;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-banner .hero-subtitle {
            font-size: 17px;
            color: var(--text-light);
            max-width: 560px;
            line-height: 1.65;
            margin-bottom: 28px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 62, 106, 0.35);
        }

        .btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(232, 62, 106, 0.35);
            outline: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.25);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-light:focus {
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
            outline: none;
        }

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

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

        .section-white {
            background: #fff;
        }

        .section-dark {
            background: var(--dark-800);
        }

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-header h2 {
            color: var(--text-light);
        }

        .section-header .section-lead {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 600px;
            line-height: 1.7;
        }

        .section-dark .section-header .section-lead {
            color: var(--text-light-muted);
        }

        /* ===== 咨询价值卡片 ===== */
        .consult-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .consult-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .consult-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 62, 106, 0.2);
        }

        .consult-card .card-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-transparent);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .consult-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .consult-card p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== 流程区块 ===== */
        .process-section {
            background: var(--dark-800);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .process-step {
            text-align: left;
            padding: 24px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(232, 62, 106, 0.3);
        }

        .process-step .step-number {
            display: inline-block;
            font-size: 36px;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-light-muted);
            line-height: 1.6;
        }

        /* ===== 咨询封面展示 ===== */
        .cover-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cover-showcase .showcase-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cover-showcase .showcase-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .cover-showcase .showcase-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .cover-showcase .showcase-content p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .showcase-list {
            list-style: none;
            padding: 0;
        }

        .showcase-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        .showcase-list li .check-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-transparent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            margin-top: 2px;
        }

        /* ===== FAQ 精简版 ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: rgba(232, 62, 106, 0.4);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(232, 62, 106, 0.04);
        }

        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-question .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== CTA 表单区块 ===== */
        .cta-section {
            background: var(--dark-900);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(232, 62, 106, 0.08);
            pointer-events: none;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
            position: relative;
            z-index: 1;
        }

        .cta-info h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-info p {
            font-size: 15px;
            color: var(--text-light-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .cta-info .cta-points {
            list-style: none;
            padding: 0;
        }

        .cta-info .cta-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .cta-info .cta-points li .cta-dot {
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 6px;
        }

        .cta-form-wrap {
            background: var(--dark-800);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px 28px;
        }

        .cta-form-wrap h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light-muted);
            margin-bottom: 6px;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-input);
            color: var(--text-light);
            font-size: 14px;
            transition: all var(--transition);
        }

        .form-input::placeholder {
            color: rgba(184, 180, 174, 0.6);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 62, 106, 0.25);
            background: rgba(255, 255, 255, 0.08);
        }

        textarea.form-input {
            resize: vertical;
            min-height: 100px;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 24px;
            background: var(--accent);
            color: var(--dark-900);
            border: none;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition);
        }

        .form-submit-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35);
        }

        .form-submit-btn:focus {
            box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.4);
            outline: none;
        }

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

        .form-note {
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-light-muted);
            line-height: 1.5;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            padding: 60px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-light-muted);
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-light-muted);
        }

        .footer-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-meta a {
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 260px;
                --section-gap: 60px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --nav-width: 0px;
            }

            .side-nav {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

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

            .hero-banner h1 {
                font-size: 28px;
            }

            .hero-banner .hero-subtitle {
                font-size: 15px;
            }

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

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

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

            .cta-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-form-wrap {
                padding: 24px 20px;
            }

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

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

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

            .cta-info h2 {
                font-size: 22px;
            }
        }

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

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-answer p {
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #E83E6A;
            --primary-dark: #C72D55;
            --primary-light: #F5A8BD;
            --primary-transparent: rgba(232, 62, 106, 0.08);
            --accent: #F5A623;
            --accent-light: #FFC966;
            --accent-transparent: rgba(245, 166, 35, 0.12);
            --dark-900: #16161A;
            --dark-800: #1D1D22;
            --dark-700: #2A2A32;
            --dark-600: #3A3A44;
            --light-bg: #F7F5F2;
            --light-card: #FFFFFF;
            --light-border: #E8E3DC;
            --text-dark: #232328;
            --text-mid: #55555E;
            --text-light: #F5F1EC;
            --text-light-muted: #B8B4AE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --radius-badge: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --nav-width: 260px;
            --content-max-width: 1200px;
            --section-gap: 80px;
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-width: 0;
            transition: margin-left 0.3s ease;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--dark-900);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease, width 0.3s ease;
        }

        .side-nav-header {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #F07EA5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-logo span {
            white-space: nowrap;
        }

        .nav-logo .logo-accent {
            color: var(--accent);
        }

        .side-nav-menu {
            flex: 1;
            overflow-y: auto;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .side-nav-menu::-webkit-scrollbar {
            width: 4px;
        }

        .side-nav-menu::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            transition: height var(--transition);
        }

        .nav-link:hover {
            background: rgba(255, 255, 255, 0.07);
            color: var(--accent-light);
        }

        .nav-link.active {
            background: rgba(232, 62, 106, 0.16);
            color: #fff;
        }

        .nav-link.active::before {
            height: 24px;
        }

        .nav-link-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            opacity: 0.8;
        }

        .side-nav-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .nav-cta-btn {
            display: block;
            text-align: center;
            padding: 12px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 62, 106, 0.35);
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: var(--dark-900);
            z-index: 1001;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-nav .nav-logo {
            font-size: 17px;
        }

        .mobile-nav .nav-logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            font-size: 15px;
        }

        .hamburger-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            position: relative;
            transition: all 0.3s ease;
        }

        .hamburger-btn span::before,
        .hamburger-btn span::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            left: 0;
            transition: all 0.3s ease;
        }

        .hamburger-btn span::before {
            top: -6px;
        }

        .hamburger-btn span::after {
            top: 6px;
        }

        .hamburger-btn.open span {
            background: transparent;
        }

        .hamburger-btn.open span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .hamburger-btn.open span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            width: 100%;
            max-height: 0;
            overflow: hidden;
            background: var(--dark-800);
            z-index: 1000;
            transition: max-height 0.35s ease;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
        }

        .mobile-drawer.open {
            max-height: 480px;
        }

        .mobile-drawer .side-nav-menu {
            padding: 12px 16px;
            gap: 2px;
        }

        .mobile-drawer .nav-link {
            padding: 13px 16px;
            font-size: 15px;
            border-radius: 8px;
        }

        .mobile-drawer .nav-link.active::before {
            height: 0;
        }

        /* ===== 标题区（Banner） ===== */
        .page-banner {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            position: relative;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(22, 22, 26, 0.78) 0%, rgba(22, 22, 26, 0.55) 55%, rgba(22, 22, 26, 0.72) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--accent-transparent);
            border: 1px solid rgba(245, 166, 35, 0.35);
            border-radius: var(--radius-badge);
            color: var(--accent-light);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .page-banner .banner-sub {
            font-size: 17px;
            color: var(--text-light-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 22px;
        }

        .banner-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .banner-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .banner-stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-light);
            letter-spacing: 1px;
        }

        .banner-stat-label {
            font-size: 13px;
            color: var(--text-light-muted);
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 620px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .section-alt {
            background: var(--light-card);
        }

        .section-dark {
            background: var(--dark-800);
        }

        .section-dark .section-title {
            color: var(--text-light);
        }

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

        /* ===== 聚合卡片墙 ===== */
        .topic-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(232, 62, 106, 0.3);
        }

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

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

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

        .topic-card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition);
        }

        .badge-primary {
            background: var(--primary-transparent);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent-transparent);
            color: #B87B1A;
        }

        .topic-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .topic-card-excerpt {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }

        .topic-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            cursor: pointer;
        }

        .topic-card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ===== 时间线区域 ===== */
        .timeline-wrapper {
            display: flex;
            gap: 32px;
        }

        .timeline-main {
            flex: 2;
        }

        .timeline-side {
            flex: 1;
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            box-shadow: var(--shadow-sm);
            align-self: flex-start;
        }

        .timeline-side-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 14px;
        }

        .timeline-side-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--light-border);
            font-size: 14px;
            color: var(--text-mid);
        }

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

        .timeline-side-list .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        .timeline-list {
            position: relative;
            padding-left: 28px;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--light-border);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding: 20px 22px;
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .timeline-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 62, 106, 0.25);
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 28px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(232, 62, 106, 0.2);
        }

        .timeline-item-date {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .timeline-item-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .timeline-item-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== 查看更多入口 ===== */
        .more-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .more-entry-card {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: 12px;
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .more-entry-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(232, 62, 106, 0.3);
        }

        .more-entry-icon {
            font-size: 26px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .more-entry-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--light-card);
            border: 1px solid var(--light-border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .faq-item.open {
            border-color: rgba(232, 62, 106, 0.4);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: all var(--transition);
            user-select: none;
            gap: 16px;
        }

        .faq-question:hover {
            background: rgba(232, 62, 106, 0.04);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-transparent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            color: var(--primary);
            transition: all var(--transition);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ===== 表单区块 ===== */
        .form-section {
            background: var(--dark-800);
            padding: 60px 0;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
        }

        .form-info .section-title {
            color: var(--text-light);
        }

        .form-info .section-desc {
            color: var(--text-light-muted);
        }

        .form-info-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }

        .form-info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-light-muted);
            font-size: 14px;
        }

        .form-info-list .check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-transparent);
            color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
        }

        .form-card {
            background: var(--dark-700);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
        }

        .form-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light-muted);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-input);
            color: var(--text-light);
            font-size: 15px;
            transition: all var(--transition);
        }

        .form-input::placeholder {
            color: rgba(245, 241, 236, 0.4);
        }

        .form-input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.09);
            box-shadow: 0 0 0 3px rgba(232, 62, 106, 0.2);
        }

        .form-textarea {
            min-height: 90px;
            resize: vertical;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }

        .form-submit-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 62, 106, 0.4);
        }

        .form-submit-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(232, 62, 106, 0.3);
        }

        .form-privacy {
            font-size: 12px;
            color: var(--text-light-muted);
            margin-top: 12px;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-900);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            color: var(--text-light-muted);
            font-size: 14px;
            line-height: 1.75;
            margin-top: 14px;
            max-width: 360px;
        }

        .footer-col h4 {
            color: var(--text-light);
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .footer-col ul a {
            color: var(--text-light-muted);
            font-size: 14px;
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-copy {
            color: var(--text-light-muted);
            font-size: 13px;
        }

        .footer-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            color: var(--text-light-muted);
            font-size: 13px;
        }

        .footer-meta a {
            color: var(--text-light-muted);
            transition: color var(--transition);
        }

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

        .footer-meta span {
            opacity: 0.6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --nav-width: 200px;
                --section-gap: 56px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .topic-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .more-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .form-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .timeline-wrapper {
                flex-direction: column;
            }
            .timeline-side {
                align-self: stretch;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-width: 0px;
                --section-gap: 44px;
            }
            .side-nav {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .page-banner {
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .banner-stats {
                gap: 18px;
            }
            .banner-stat-num {
                font-size: 22px;
            }
            .topic-card-grid {
                grid-template-columns: 1fr;
            }
            .more-entry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .section-title {
                font-size: 21px;
            }
            .timeline-list {
                padding-left: 22px;
            }
            .timeline-item {
                padding: 16px 16px;
            }
            .timeline-item::before {
                left: -19px;
                top: 24px;
                width: 8px;
                height: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 36px;
            }
            .container {
                padding: 0 16px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .banner-stats {
                gap: 12px;
                flex-wrap: wrap;
            }
            .banner-stat-num {
                font-size: 19px;
            }
            .more-entry-grid {
                grid-template-columns: 1fr 1fr;
            }
            .form-card {
                padding: 24px 18px;
            }
        }