/* roulang page: index */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

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

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

        /* ========== 顶栏 ========== */
        .top-strip {
            background-color: #f9f6f0;
            border-bottom: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
        }
        .top-strip .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .top-strip .top-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-strip .top-item span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .top-strip .dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background-color: var(--secondary);
            border-radius: 50%;
        }

        /* ========== 主导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }
        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ========== 进度步骤导航 ========== */
        .steps-bar {
            background-color: var(--primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
        }
        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            white-space: nowrap;
            cursor: pointer;
            transition: color var(--transition);
            padding: 4px 10px;
            border-radius: 6px;
        }
        .step-item:hover,
        .step-item.active-step {
            color: var(--accent);
        }
        .step-num {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            color: inherit;
            flex-shrink: 0;
            transition: background-color var(--transition), color var(--transition);
        }
        .step-item.active-step .step-num,
        .step-item:hover .step-num {
            background-color: var(--accent);
            color: var(--primary);
        }
        .step-connector {
            width: 30px;
            height: 2px;
            background-color: rgba(255, 255, 255, 0.2);
            margin: 0 4px;
            flex-shrink: 0;
        }

        /* ========== Hero ========== */
        .hero {
            background-color: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 60px 0 70px;
            color: #ffffff;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 46, 42, 0.92) 0%, rgba(26, 46, 42, 0.78) 55%, rgba(36, 58, 52, 0.85) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-content {
            padding-right: 0;
        }
        .hero-badge {
            display: inline-block;
            background-color: rgba(212, 162, 78, 0.18);
            color: var(--accent);
            border: 1px solid rgba(212, 162, 78, 0.4);
            border-radius: var(--radius-tag);
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 700;
            line-height: 1.2;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 16px;
            line-height: 1.8;
            color: var(--bg-warm);
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            border: none;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-accent);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--bg-warm);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }
        .btn-outline {
            background-color: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
        }
        .btn-outline:hover {
            background-color: var(--secondary);
            color: #fff;
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 280px;
        }
        .hero-data-panel {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 28px;
            width: 100%;
            max-width: 420px;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-lg);
        }
        .hero-data-panel .panel-title {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mini-chart {
            display: flex;
            align-items: flex-end;
            gap: 6px;
            height: 120px;
            margin-bottom: 18px;
        }
        .mini-chart .bar {
            flex: 1;
            background: linear-gradient(180deg, var(--accent) 0%, rgba(212, 162, 78, 0.4) 100%);
            border-radius: 4px 4px 0 0;
            min-height: 18px;
            transition: height 0.6s ease;
        }
        .mini-chart .bar:nth-child(odd) {
            background: linear-gradient(180deg, var(--secondary) 0%, rgba(58, 125, 108, 0.4) 100%);
        }
        .panel-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .panel-stat {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }
        .panel-stat strong {
            display: block;
            font-size: 20px;
            color: var(--accent);
            font-weight: 700;
        }

        /* ========== 指标看板 ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        .metric-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
        }
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .metric-value {
            font-size: clamp(2rem, 3vw, 3rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .metric-unit {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 服务矩阵 ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--gap);
        }
        .service-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .service-card.large {
            grid-column: span 1;
            grid-row: span 2;
            background-color: var(--bg-warm);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background-color: var(--secondary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
        }
        .service-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            flex-grow: 1;
        }
        .service-link {
            color: var(--secondary);
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .service-link:hover {
            gap: 10px;
            color: var(--accent-hover);
        }

        /* ========== 深度内容区块 ========== */
        .deep-section {
            background-color: var(--bg-white);
        }
        .deep-content {
            max-width: 820px;
            margin: 0 auto;
        }
        .deep-content h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .deep-content h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin: 24px 0 12px;
            line-height: 1.4;
        }
        .deep-content p {
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 16px;
            font-size: 16px;
        }
        .deep-content ul, .deep-content ol {
            margin: 12px 0 16px 24px;
            color: var(--text-main);
            line-height: 1.9;
        }
        .deep-content li {
            margin-bottom: 8px;
        }
        .deep-content blockquote {
            border-left: 3px solid var(--accent);
            background-color: var(--bg-warm);
            padding: 16px 20px;
            margin: 16px 0;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        /* ========== 结果对比 ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
        }
        .compare-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .compare-card.recommended {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(212, 162, 78, 0.25), var(--shadow-md);
            position: relative;
        }
        .compare-card.recommended::before {
            content: '推荐方式';
            position: absolute;
            top: -12px;
            left: 24px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .compare-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .compare-card ul {
            list-style: none;
            padding: 0;
        }
        .compare-card li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 14px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }
        .compare-card li:last-child {
            border-bottom: none;
        }
        .compare-card li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .compare-card.recommended li::before {
            color: var(--accent);
        }
        .compare-card li.no-check::before {
            content: '×';
            color: #cc5555;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background-color: var(--bg-warm);
            position: relative;
        }
        .brand-intro .container {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: center;
        }
        .brand-intro .brand-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-intro-text h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .brand-intro-text p {
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
            font-size: 15px;
        }

        /* ========== 新闻中心 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
        }
        .news-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .news-date {
            font-size: 13px;
            color: var(--text-light);
            letter-spacing: 0.5px;
        }
        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
        }
        .news-excerpt {
            font-size: 14px;
            color: #555555;
            line-height: 1.7;
            flex-grow: 1;
        }
        .read-more {
            color: var(--secondary);
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition), color var(--transition);
            align-self: flex-start;
        }
        .read-more:hover {
            color: var(--accent-hover);
            gap: 9px;
        }
        .read-more .arrow {
            transition: transform var(--transition);
            display: inline-block;
        }
        .read-more:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== 套餐对比 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
            align-items: stretch;
        }
        .pricing-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            position: relative;
        }
        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .pricing-card.featured {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(212, 162, 78, 0.3), var(--shadow-md);
        }
        .pricing-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 24px;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: 20px;
        }
        .pricing-name {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .pricing-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .pricing-features {
            list-style: none;
            text-align: left;
            margin: 14px 0 20px;
            flex-grow: 1;
        }
        .pricing-features li {
            padding: 7px 0;
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid var(--border-light);
        }
        .pricing-features li:last-child {
            border-bottom: none;
        }
        .pricing-features li::before {
            content: '●';
            color: var(--secondary);
            font-size: 8px;
        }
        .pricing-card.featured .pricing-features li::before {
            color: var(--accent);
        }
        .pricing-card .btn {
            width: 100%;
            justify-content: center;
        }

        /* ========== 排行列表 ========== */
        .ranking-list {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: background-color var(--transition);
            cursor: pointer;
        }
        .ranking-item:hover {
            background-color: var(--bg-warm);
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .rank-badge {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--text-secondary);
            flex-shrink: 0;
        }
        .ranking-item:nth-child(1) .rank-badge {
            background-color: var(--accent);
            color: var(--primary);
        }
        .ranking-item:nth-child(2) .rank-badge {
            background-color: #c0c0c0;
            color: #fff;
        }
        .ranking-item:nth-child(3) .rank-badge {
            background-color: #cd7f32;
            color: #fff;
        }
        .ranking-info {
            flex: 1;
        }
        .ranking-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 2px;
        }
        .ranking-info span {
            font-size: 13px;
            color: var(--text-light);
        }
        .ranking-metric {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
        }

        /* ========== 评价墙 ========== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .review-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .review-stars {
            color: var(--accent);
            font-size: 15px;
            letter-spacing: 2px;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
        }
        .review-author {
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 10px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            background-color: var(--bg-white);
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            background-color: var(--bg-white);
            font-weight: 500;
            color: var(--primary);
            font-size: 15px;
            transition: background-color var(--transition);
            gap: 12px;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background-color: var(--bg-warm);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            background-color: var(--bg-warm);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 16px 22px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 数据安全 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }
        .security-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
        }
        .security-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .security-icon {
            font-size: 32px;
            margin-bottom: 12px;
            color: var(--secondary);
        }
        .security-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .security-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 表单区 ========== */
        .form-section {
            background-color: var(--secondary);
            position: relative;
        }
        .form-section .container {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }
        .form-info h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .form-info p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            line-height: 1.8;
        }
        .form-card {
            background-color: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }
        .form-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
            background-color: #fcfbfa;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(58, 125, 108, 0.2);
            background-color: #fff;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #bbb;
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 12px;
            line-height: 1.6;
        }
        .btn-disabled {
            background-color: var(--border-light);
            color: var(--text-light);
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary);
            color: var(--bg-warm);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }
        .footer-links h4 {
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ========== 区块标题通用 ========== */
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-title p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== 移动端导航抽屉 ========== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.show {
            opacity: 1;
        }
        .mobile-nav-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 280px;
            max-width: 80%;
            height: 100vh;
            background-color: var(--primary);
            z-index: 1001;
            padding: 20px;
            transition: right 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 6px;
            overflow-y: auto;
        }
        .mobile-nav-drawer.open {
            right: 0;
        }
        .mobile-nav-drawer a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            padding: 12px 16px;
            border-radius: 6px;
            transition: all var(--transition);
            display: block;
        }
        .mobile-nav-drawer a:hover,
        .mobile-nav-drawer a.active {
            color: var(--accent);
            background-color: rgba(255, 255, 255, 0.08);
        }
        .mobile-nav-close {
            align-self: flex-end;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.large {
                grid-column: span 2;
                grid-row: span 1;
            }
            .pricing-grid {
                grid-template-columns: 1fr 1fr;
            }
            .pricing-card.featured {
                grid-column: span 2;
            }
            .reviews-grid {
                grid-template-columns: 1fr 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero .container {
                grid-template-columns: 1fr;
            }
            .hero-visual {
                min-height: auto;
                padding-top: 20px;
            }
            .brand-intro .container {
                grid-template-columns: 1fr;
            }
            .form-section .container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav-overlay.show {
                display: block;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .service-card.large {
                grid-column: span 1;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                grid-column: span 1;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .steps-bar {
                overflow-x: auto;
            }
            .step-connector {
                width: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero {
                padding: 40px 0 50px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-cta-group .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .top-strip .top-item {
                flex-wrap: wrap;
                gap: 6px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .metric-card {
                padding: 18px;
            }
            .service-card {
                padding: 20px;
            }
            .form-card {
                padding: 20px;
            }
            .form-group input,
            .form-group select,
            .form-group textarea {
                width: 100%;
            }
            .logo-text {
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

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

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

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ========== 进度步骤导航 ========== */
        .steps-bar {
            background-color: var(--primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 0;
        }

        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            min-width: 0;
        }

        .step-item a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .step-item a:hover,
        .step-item a.active-step {
            color: var(--accent);
        }

        .step-num {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .step-item a.active-step .step-num {
            background-color: var(--accent);
            color: var(--primary);
        }

        .step-connector {
            flex: 1;
            height: 1px;
            background-color: rgba(255, 255, 255, 0.2);
            margin: 0 8px;
            min-width: 20px;
        }

        /* ========== 页头横幅 ========== */
        .page-hero {
            background-color: var(--primary);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--secondary), var(--copper));
        }

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

        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
        }

        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }

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

        .page-hero .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .page-hero .breadcrumb .current {
            color: var(--accent);
        }

        .page-hero h1 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .page-hero .hero-sub {
            font-size: 16px;
            color: var(--bg-warm);
            line-height: 1.7;
            max-width: 720px;
        }

        /* ========== 趋势核心指标 ========== */
        .trend-metrics {
            padding: 50px 0 30px;
            background-color: var(--bg-white);
        }

        .trend-metrics .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }

        .metric-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .metric-number {
            font-size: clamp(1.8rem, 2.5vw, 2.4rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .metric-unit {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 图文交替长文区域 ========== */
        .article-alt {
            padding: 60px 0;
        }

        .article-alt .alt-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }

        .article-alt .alt-row:last-child {
            margin-bottom: 0;
        }

        .article-alt .alt-row.reverse {
            direction: rtl;
        }

        .article-alt .alt-row.reverse > * {
            direction: ltr;
        }

        .article-alt .alt-text h2 {
            font-size: clamp(1.3rem, 2vw, 1.6rem);
            font-weight: 600;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .article-alt .alt-text h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--secondary);
            margin-top: 20px;
            margin-bottom: 10px;
        }

        .article-alt .alt-text p {
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.85;
        }

        .article-alt .alt-text ul {
            list-style: none;
            padding: 0;
            margin: 12px 0 16px;
        }

        .article-alt .alt-text ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 8px;
            color: var(--text-main);
            line-height: 1.7;
        }

        .article-alt .alt-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .article-alt .alt-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

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

        .article-alt .alt-image .image-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 12px 16px;
            background: linear-gradient(transparent, rgba(26, 46, 42, 0.85));
            color: var(--bg-warm);
            font-size: 13px;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }

        /* ========== 图表占位区 ========== */
        .chart-placeholder {
            padding: 40px 0;
        }

        .chart-placeholder .chart-box {
            background-color: var(--bg-warm);
            border: 1px dashed var(--border-mid);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            min-height: 220px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }

        .chart-placeholder .chart-icon {
            font-size: 48px;
            color: var(--secondary);
            line-height: 1;
        }

        .chart-placeholder .chart-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
        }

        .chart-placeholder .chart-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 480px;
            line-height: 1.6;
        }

        .chart-placeholder .chart-bars {
            display: flex;
            align-items: flex-end;
            gap: 12px;
            margin-top: 16px;
            height: 80px;
        }

        .chart-placeholder .bar {
            width: 28px;
            border-radius: 4px 4px 0 0;
            background: linear-gradient(180deg, var(--secondary), var(--primary-light));
            transition: height 0.5s ease;
        }

        /* ========== 关键发现区 ========== */
        .key-findings {
            padding: 40px 0;
            background-color: var(--bg-white);
        }

        .key-findings .findings-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
            margin-top: 24px;
        }

        .finding-card {
            background-color: var(--bg-warm);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .finding-card .finding-icon {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .finding-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        /* ========== FAQ 区域 ========== */
        .trend-faq {
            padding: 60px 0;
        }

        .faq-list {
            margin-top: 24px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            transition: background-color var(--transition);
            gap: 16px;
        }

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

        .faq-question span {
            font-weight: 600;
            color: var(--primary);
            font-size: 15px;
            flex: 1;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            transition: transform var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            background-color: var(--bg-warm);
            border-top: none;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px 20px;
            border-top: 1px solid var(--border-light);
        }

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

        /* ========== CTA 区域 ========== */
        .cta-section {
            padding: 70px 0;
            background-color: var(--primary);
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.4rem, 2vw, 1.8rem);
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--bg-warm);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-accent);
        }

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

        .btn-secondary:hover {
            background-color: var(--accent);
            color: var(--primary);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary);
            color: var(--bg-warm);
            padding: 50px 0 24px;
        }

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

        .site-footer .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 380px;
        }

        .site-footer .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .site-footer .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.25);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .trend-metrics .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .key-findings .findings-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-alt .alt-row {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 20px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 0;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .hamburger {
                display: flex;
            }
            .steps-bar {
                display: none;
            }
            .article-alt .alt-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-alt .alt-row.reverse {
                direction: ltr;
            }
            .article-alt .alt-image img {
                height: 220px;
            }
            .key-findings .findings-grid {
                grid-template-columns: 1fr;
            }
            .trend-metrics .metrics-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .cta-section {
                padding: 50px 0;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .alt-text h2 {
                font-size: 1.2rem !important;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .chart-placeholder .chart-box {
                padding: 24px 16px;
            }
            .chart-placeholder .bar {
                width: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background-color: var(--bg-warm);
        }

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }
        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ========== 步骤条 ========== */
        .steps-bar {
            background-color: var(--primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
        }
        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .step-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.15);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
            flex-shrink: 0;
        }
        .step-item.active .step-dot {
            background-color: var(--accent);
            color: var(--primary);
        }
        .step-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            white-space: nowrap;
        }
        .step-item.active .step-label {
            color: var(--accent);
            font-weight: 500;
        }
        .step-line {
            width: 40px;
            height: 2px;
            background-color: rgba(255, 255, 255, 0.2);
            margin: 0 14px;
            flex-shrink: 0;
        }
        .step-item:last-child .step-line {
            display: none;
        }
        .steps-bar a {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        /* ========== 分类页头横幅 ========== */
        .page-hero {
            background-color: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(26, 46, 42, 0.92) 0%, rgba(26, 46, 42, 0.82) 50%, rgba(26, 46, 42, 0.75) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }
        .breadcrumb .current {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 700;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero .hero-sub {
            font-size: 1.05rem;
            color: rgba(245, 240, 232, 0.85);
            max-width: 720px;
            line-height: 1.7;
        }
        .page-hero .hero-meta {
            display: flex;
            gap: 20px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        /* ========== 统计卡片 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-md);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .stat-number {
            font-size: clamp(2rem, 3vw, 2.8rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .stat-unit {
            font-size: 0.9rem;
            color: var(--accent);
            font-weight: 500;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 400;
        }

        /* ========== 数据表格区 ========== */
        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
            font-size: 14px;
        }
        .data-table thead {
            background-color: var(--primary);
        }
        .data-table thead th {
            color: #ffffff;
            font-weight: 500;
            padding: 14px 16px;
            text-align: center;
            font-size: 13px;
            white-space: nowrap;
            border-right: 1px solid rgba(255, 255, 255, 0.12);
            letter-spacing: 0.3px;
        }
        .data-table thead th:last-child {
            border-right: none;
        }
        .data-table tbody td {
            padding: 12px 16px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-main);
            white-space: nowrap;
        }
        .data-table tbody tr:nth-child(even) {
            background-color: var(--bg-warm);
        }
        .data-table tbody tr:nth-child(odd) {
            background-color: var(--bg-white);
        }
        .data-table tbody tr:hover {
            background-color: rgba(212, 162, 78, 0.08);
        }
        .data-table tbody tr:last-child td {
            border-bottom: none;
        }
        .badge-trend {
            display: inline-block;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 500;
        }
        .badge-up {
            background-color: rgba(58, 125, 108, 0.15);
            color: var(--secondary);
        }
        .badge-down {
            background-color: rgba(184, 115, 51, 0.15);
            color: var(--copper);
        }
        .badge-flat {
            background-color: rgba(102, 102, 102, 0.1);
            color: var(--text-secondary);
        }

        /* ========== 数据解读 ========== */
        .insight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .insight-text h2 {
            font-size: clamp(1.5rem, 2.2vw, 1.9rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .insight-text p {
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.85;
        }
        .insight-text .key-points {
            list-style: none;
            margin-top: 16px;
            padding: 0;
        }
        .insight-text .key-points li {
            padding-left: 24px;
            position: relative;
            margin-bottom: 10px;
            color: var(--text-main);
            font-size: 15px;
        }
        .insight-text .key-points li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--accent);
        }
        .insight-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .insight-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        /* ========== 指标对比 ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap);
            margin-top: 24px;
        }
        .compare-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .compare-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .compare-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }
        .compare-card ul {
            list-style: none;
            padding: 0;
        }
        .compare-card ul li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .compare-card ul li:last-child {
            border-bottom: none;
        }
        .compare-card ul li .value {
            font-weight: 600;
            color: var(--primary);
        }
        .compare-card ul li .value.high {
            color: var(--accent);
        }

        /* ========== 数据来源说明 ========== */
        .source-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
            margin-top: 24px;
        }
        .source-item {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 24px;
            border-left: 4px solid var(--secondary);
            box-shadow: var(--shadow-sm);
        }
        .source-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .source-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 快速使用指南 ========== */
        .guide-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
            margin-top: 24px;
            counter-reset: step-counter;
        }
        .guide-step {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            counter-increment: step-counter;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .guide-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .guide-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 14px;
        }
        .guide-step h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .guide-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 24px auto 0;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            transition: border-color var(--transition);
        }
        .faq-item.active {
            border-color: var(--secondary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            background: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            cursor: pointer;
            gap: 16px;
            transition: background-color var(--transition);
        }
        .faq-question:hover {
            background-color: rgba(58, 125, 108, 0.04);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--secondary-light);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            transition: transform var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background-color: var(--accent);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
            background-color: var(--bg-warm);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 22px 20px;
        }

        /* ========== CTA 表单 ========== */
        .cta-section {
            background-color: var(--secondary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: var(--section-pad) 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(26, 46, 42, 0.88);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: clamp(1.5rem, 2.2vw, 1.9rem);
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .cta-info p {
            color: rgba(245, 240, 232, 0.8);
            font-size: 15px;
            line-height: 1.7;
        }
        .cta-info .cta-tip {
            margin-top: 16px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 500;
        }
        .form-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            background-color: var(--bg-white);
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(58, 125, 108, 0.2);
        }
        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-block;
            width: 100%;
            text-align: center;
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:disabled {
            background-color: var(--border-light);
            color: var(--text-light);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .privacy-note {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 10px;
            text-align: center;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary);
            color: rgba(245, 240, 232, 0.8);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 240, 232, 0.7);
        }
        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.7);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.6);
        }
        .footer-bottom a {
            color: rgba(245, 240, 232, 0.7);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .insight-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .source-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                padding: 16px 20px;
                gap: 0;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
                z-index: 1001;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li {
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            .main-nav li:last-child {
                border-bottom: none;
            }
            .main-nav a {
                display: block;
                padding: 14px 0;
                font-size: 16px;
            }
            .main-nav a::after {
                display: none;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .page-hero {
                padding: 48px 0 40px;
            }
            .stats-grid {
                margin-top: -24px;
                gap: 16px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .source-list {
                grid-template-columns: 1fr;
            }
            .guide-flow {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .step-line {
                width: 20px;
                margin: 0 8px;
            }
            .step-label {
                font-size: 12px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .hero-meta {
                gap: 12px;
                flex-direction: column;
            }
            .form-card {
                padding: 24px 20px;
            }
            .btn-primary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .compare-card {
                padding: 20px 16px;
            }
            .guide-step {
                padding: 20px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-stack);
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background-color: var(--bg-warm);
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }
        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }
        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* 进度步骤导航 */
        .steps-bar {
            background-color: var(--primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--accent) transparent;
        }
        .steps-bar::-webkit-scrollbar {
            height: 4px;
        }
        .steps-bar::-webkit-scrollbar-thumb {
            background-color: var(--accent);
            border-radius: 4px;
        }
        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
        }
        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            white-space: nowrap;
            cursor: pointer;
            transition: color var(--transition);
        }
        .step-item:hover,
        .step-item.active-step {
            color: var(--accent);
        }
        .step-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid currentColor;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 13px;
            flex-shrink: 0;
        }
        .step-active-indicator {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }
        .step-connector {
            width: 40px;
            height: 1px;
            background-color: rgba(255, 255, 255, 0.25);
            margin: 0 8px;
            flex-shrink: 0;
        }
        .step-connector.active-line {
            background-color: var(--accent);
        }

        /* 页头横幅 */
        .page-banner {
            background-color: var(--primary);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            border-bottom: 3px solid var(--accent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 400px;
            height: 100%;
            background: radial-gradient(circle at 80% 50%, rgba(212, 162, 78, 0.15), transparent 70%);
            pointer-events: none;
        }
        .banner-badge {
            display: inline-block;
            background-color: var(--secondary-light);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid rgba(212, 162, 78, 0.3);
        }
        .page-banner h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .page-banner p {
            color: var(--bg-warm);
            font-size: 16px;
            max-width: 680px;
            line-height: 1.7;
        }

        /* 主体内容 */
        .news-section {
            padding: var(--section-pad) 0;
            background-color: var(--bg-white);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--secondary);
        }
        .news-card-body {
            padding: 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .news-date::before {
            content: '● ';
            color: var(--accent);
            font-size: 10px;
            vertical-align: middle;
        }
        .news-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .news-card h3:hover {
            color: var(--secondary);
        }
        .news-summary {
            font-size: 14px;
            color: #555555;
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--secondary);
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition);
            align-self: flex-start;
        }
        .read-more .arrow {
            transition: transform var(--transition);
            font-size: 16px;
        }
        .read-more:hover {
            color: var(--accent-hover);
        }
        .read-more:hover .arrow {
            transform: translateX(4px);
        }
        .news-card-image {
            max-height: 220px;
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }
        .news-card-image img {
            width: 100%;
            object-fit: cover;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-image img {
            transform: scale(1.03);
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination .page-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--bg-white);
            color: var(--text-main);
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            font-size: 14px;
        }
        .pagination .page-btn:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            box-shadow: var(--shadow-sm);
        }
        .pagination .page-btn.active-page {
            background-color: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            font-weight: 700;
            box-shadow: var(--shadow-accent);
        }
        .pagination .page-btn.disabled {
            cursor: not-allowed;
            opacity: 0.5;
            pointer-events: none;
        }

        /* 订阅提示区 */
        .subscribe-cta {
            background-color: var(--bg-warm);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-light);
            padding: 28px 30px;
            margin-top: 32px;
            text-align: center;
        }
        .subscribe-cta h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .subscribe-cta p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-accent);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
        }
        .btn-secondary:hover {
            background-color: var(--secondary);
            color: #fff;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary);
            color: var(--bg-warm);
            padding: 60px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 240, 232, 0.7);
            max-width: 360px;
        }
        .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(245, 240, 232, 0.75);
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(245, 240, 232, 0.6);
        }
        .footer-bottom a {
            color: rgba(245, 240, 232, 0.6);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .sep {
            margin: 0 8px;
            opacity: 0.5;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .main-nav {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 0;
                box-shadow: 0 12px 24px rgba(0,0,0,0.18);
                border-top: 1px solid rgba(255,255,255,0.1);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .main-nav li:last-child a {
                border-bottom: none;
            }
            .hamburger {
                display: flex;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .news-card-body {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .step-connector {
                width: 20px;
                margin: 0 4px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 14px;
            }
            .btn {
                width: 100%;
                padding: 12px 16px;
            }
            .step-item {
                font-size: 12px;
                gap: 6px;
            }
            .step-connector {
                width: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

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

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

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 800px;
            margin-bottom: 40px;
        }

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

        .section-head .section-title {
            position: relative;
            padding-left: 16px;
        }

        .section-head .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background-color: var(--accent);
            border-radius: 2px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* Steps bar */
        .steps-bar {
            background-color: rgba(0, 0, 0, 0.25);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-width: max-content;
            padding-top: 10px;
            padding-bottom: 10px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .steps-bar .container::-webkit-scrollbar {
            display: none;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .step-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .step-dot.active-step {
            background-color: var(--accent);
            color: var(--primary);
        }

        .step-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            white-space: nowrap;
        }

        .step-connector {
            width: 40px;
            height: 2px;
            background-color: rgba(255, 255, 255, 0.2);
            margin: 0 12px;
            flex-shrink: 0;
            border-radius: 1px;
        }

        .step-connector.active-connector {
            background-color: var(--accent);
        }

        /* Page Banner */
        .page-banner {
            background-color: var(--primary-light);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(212, 162, 78, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(58, 125, 108, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .page-banner-left {
            flex: 1;
            min-width: 280px;
        }

        .page-banner-left .banner-tag {
            display: inline-block;
            background-color: var(--secondary-light);
            color: #7fc4b0;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-banner-left h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 16px;
        }

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

        .page-banner-left p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 560px;
        }

        .page-banner-right {
            flex-shrink: 0;
            width: 340px;
            max-width: 100%;
        }

        .page-banner-right img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: var(--radius-card);
            border: 2px solid rgba(255, 255, 255, 0.1);
            box-shadow: var(--shadow-lg);
        }

        /* Stats Overview */
        .stats-overview {
            background-color: var(--bg-white);
            padding: 48px 0;
            border-bottom: 1px solid var(--border-light);
        }

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

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-unit {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* Timeline Section */
        .timeline-section {
            background-color: var(--bg-warm);
            padding: var(--section-pad) 0;
        }

        .timeline-wrapper {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--border-mid);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-left: 60px;
            margin-bottom: 40px;
            transition: transform var(--transition);
        }

        .timeline-item:hover {
            transform: translateX(4px);
        }

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

        .timeline-dot {
            position: absolute;
            left: 8px;
            top: 4px;
            width: 27px;
            height: 27px;
            border-radius: 50%;
            background-color: var(--accent);
            border: 4px solid var(--bg-warm);
            box-shadow: 0 0 0 3px var(--accent);
            z-index: 1;
        }

        .timeline-dot.copper-dot {
            background-color: var(--copper);
            box-shadow: 0 0 0 3px var(--copper);
        }

        .timeline-dot.green-dot {
            background-color: var(--secondary);
            box-shadow: 0 0 0 3px var(--secondary);
        }

        .timeline-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }

        .timeline-date {
            display: inline-block;
            font-size: 13px;
            color: var(--secondary);
            font-weight: 600;
            background-color: var(--secondary-light);
            padding: 3px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .timeline-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .timeline-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .timeline-card .timeline-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-light);
            flex-wrap: wrap;
        }

        .timeline-card .timeline-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* Filter Tags */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
            justify-content: center;
        }

        .filter-tag {
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--border-mid);
            background: var(--bg-white);
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background-color: var(--secondary-light);
        }

        .filter-tag.active-tag {
            background-color: var(--secondary);
            border-color: var(--secondary);
            color: #fff;
        }

        /* Deep Content */
        .deep-content {
            background-color: var(--bg-white);
            padding: var(--section-pad) 0;
        }

        .deep-content-inner {
            max-width: 850px;
            margin: 0 auto;
        }

        .deep-content-inner h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            margin: 32px 0 16px;
            line-height: 1.4;
        }

        .deep-content-inner h3:first-child {
            margin-top: 0;
        }

        .deep-content-inner p {
            font-size: 16px;
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .deep-content-inner ul {
            margin: 0 0 16px 20px;
            padding: 0;
        }

        .deep-content-inner ul li {
            font-size: 16px;
            color: var(--text-main);
            line-height: 1.9;
            margin-bottom: 8px;
        }

        .deep-content-inner .highlight-box {
            background-color: var(--bg-warm);
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 24px 0;
        }

        .deep-content-inner .highlight-box p {
            margin-bottom: 0;
            color: var(--text-main);
            font-weight: 500;
        }

        /* Guide Steps */
        .guide-section {
            background-color: var(--bg-warm);
            padding: var(--section-pad) 0;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            counter-reset: guide-counter;
        }

        .guide-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            counter-increment: guide-counter;
        }

        .guide-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }

        .guide-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .guide-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .guide-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            background-color: var(--primary);
            padding: var(--section-pad) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212, 162, 78, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-content h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 32px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--primary);
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            transform: scale(1.02);
            box-shadow: var(--shadow-accent);
        }

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

        .btn-secondary:hover {
            background-color: var(--accent);
            color: var(--primary);
        }

        .btn-light-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-light-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background-color: rgba(212, 162, 78, 0.1);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            text-align: center;
        }

        .footer-bottom span {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }

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

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

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.3);
        }

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

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

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

            .main-nav {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 20px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            }

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

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

            .main-nav a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }

            .main-nav li:last-child a {
                border-bottom: none;
            }

            .hamburger {
                display: flex;
            }

            .page-banner {
                padding: 48px 0;
            }

            .page-banner .container {
                flex-direction: column;
                align-items: flex-start;
            }

            .page-banner-right {
                width: 100%;
            }

            .page-banner-right img {
                height: 200px;
            }

            .timeline-wrapper::before {
                left: 12px;
            }

            .timeline-item {
                padding-left: 40px;
            }

            .timeline-dot {
                left: 0;
                width: 24px;
                height: 24px;
                border-width: 3px;
            }

            .section {
                padding: var(--section-pad-mobile) 0;
            }

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

            .stat-card {
                padding: 16px;
            }

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

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

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

            .btn {
                width: 100%;
                max-width: 280px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

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

            .timeline-card {
                padding: 16px 18px;
            }

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

            .timeline-item {
                padding-left: 36px;
                margin-bottom: 28px;
            }

            .guide-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 20px;
            }

            .filter-tags {
                justify-content: flex-start;
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
                scrollbar-width: none;
            }

            .filter-tags::-webkit-scrollbar {
                display: none;
            }

            .filter-tag {
                flex-shrink: 0;
            }

            .footer-bottom {
                font-size: 12px;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #1a2e2a;
  --primary-light: #243a34;
  --accent: #d4a24e;
  --accent-hover: #c1923e;
  --bg-warm: #f5f0e8;
  --bg-white: #ffffff;
  --secondary: #3a7d6c;
  --secondary-light: rgba(58, 125, 108, 0.2);
  --copper: #b87333;
  --text-main: #2d2d2d;
  --text-secondary: #666666;
  --text-light: #999999;
  --border-light: #e0ddd5;
  --border-mid: #d5d0c5;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 4px;
  --radius-img: 12px;
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
  --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --max-width: 1200px;
  --gap: 24px;
  --section-pad: 80px;
  --section-pad-mobile: 48px;
  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.8;
  font-weight: 400;
  color: var(--text-main);
  background-color: var(--bg-white);
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0;
}

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

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

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

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

.section-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--primary);
  margin: 0 0 12px 0;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0 0 32px 0;
  max-width: 720px;
  line-height: 1.8;
}

/* ========== 顶部信息条 ========== */
.top-strip {
  background-color: var(--primary-light);
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.top-strip .top-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-strip .top-item span {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ========== 主导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--primary);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--copper));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 700;
  font-size: 16px;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 1px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  font-weight: 400;
  padding: 8px 0;
  position: relative;
  white-space: nowrap;
  transition: color var(--transition);
  display: inline-block;
}

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

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition);
  border-radius: 2px;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 3px;
  background-color: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ========== 进度步骤导航 ========== */
.steps-bar {
  background-color: rgba(255, 255, 255, 0.04);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.steps-bar .container {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: max-content;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
}

.step-item a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.step-item a:hover,
.step-item.active a {
  color: var(--accent);
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
  transition: background-color var(--transition);
}

.step-item.active .step-num {
  background-color: var(--accent);
  color: var(--primary);
}

.step-connector {
  width: 28px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.2);
  margin: 0 8px;
  flex-shrink: 0;
}

/* ========== 页头横幅 ========== */
.page-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 60px 0 50px;
  position: relative;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 162, 78, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 20%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(58, 125, 108, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

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

.breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

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

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.4);
}

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

.page-banner h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
  margin: 0 0 16px 0;
}

.page-banner .banner-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 680px;
  line-height: 1.8;
  margin: 0;
}

/* ========== 快速入口卡片 ========== */
.quick-entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.quick-entry-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

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

.quick-entry-card .qe-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--secondary);
  margin-bottom: 6px;
}

.quick-entry-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0;
  line-height: 1.4;
}

.quick-entry-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ========== 步骤指南主区 ========== */
.steps-guide-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.steps-guide-wrapper::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--secondary), var(--border-mid));
  z-index: 0;
}

.step-guide-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  padding: 24px 0 32px;
  position: relative;
  z-index: 1;
}

.step-guide-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--primary);
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 4px var(--bg-white), 0 0 0 6px var(--border-light);
  flex-shrink: 0;
}

.step-guide-body {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px 30px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.step-guide-body:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--secondary);
}

.step-guide-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.step-guide-body .step-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--secondary);
  background-color: var(--secondary-light);
  border-radius: var(--radius-tag);
  padding: 3px 10px;
  margin-bottom: 12px;
  font-weight: 500;
}

.step-guide-body p {
  color: var(--text-secondary);
  margin: 0 0 14px 0;
  line-height: 1.8;
}

.step-guide-body ul {
  margin: 0 0 14px 0;
  padding-left: 20px;
  color: var(--text-secondary);
}

.step-guide-body ul li {
  margin-bottom: 6px;
  line-height: 1.7;
}

/* ========== 提示框 ========== */
.tip-box {
  border-radius: var(--radius-card);
  padding: 18px 20px;
  margin: 16px 0 8px;
  font-size: 14px;
  line-height: 1.7;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.tip-box .tip-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.tip-box.tip-info {
  background-color: rgba(58, 125, 108, 0.08);
  border: 1px solid rgba(58, 125, 108, 0.3);
  color: #2d5a4e;
}

.tip-box.tip-warning {
  background-color: rgba(212, 162, 78, 0.08);
  border: 1px solid rgba(212, 162, 78, 0.35);
  color: #8a6a2e;
}

.tip-box.tip-success {
  background-color: rgba(58, 125, 108, 0.1);
  border: 1px solid rgba(58, 125, 108, 0.4);
  color: #2d5a4e;
}

.tip-box strong {
  font-weight: 600;
}

/* ========== 方法对比区 ========== */
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.method-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.method-card .method-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}

.method-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.method-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

/* ========== 使用场景 ========== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}

.scenario-card {
  display: flex;
  gap: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  align-items: flex-start;
}

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

.scenario-card .sc-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background-color: var(--secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--secondary);
  flex-shrink: 0;
}

.scenario-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.scenario-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

/* ========== 误区提示区 ========== */
.misconception-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.misconception-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 24px 22px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--copper);
}

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

.misconception-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--copper);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.misconception-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.7;
}

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

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

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

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  background: var(--bg-white);
  font-size: 15px;
  font-weight: 500;
  color: var(--primary);
  text-align: left;
  transition: all var(--transition);
  gap: 16px;
}

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

.faq-question .faq-arrow {
  font-size: 14px;
  color: var(--secondary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  padding: 0 22px 20px;
  max-height: 500px;
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 162, 78, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

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

.cta-section h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 12px 0;
  line-height: 1.3;
}

.cta-section p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--primary);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: scale(1.02);
  box-shadow: var(--shadow-accent);
}

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

.btn-secondary:hover {
  background-color: var(--secondary);
  color: #ffffff;
}

.btn-light-outline {
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.btn-light-outline:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ========== 页脚 ========== */
.site-footer {
  background-color: var(--primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 12px 0;
  letter-spacing: 1px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  line-height: 1.7;
  max-width: 360px;
}

.footer-links h4 {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin: 0 0 16px 0;
}

.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 10px;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  align-items: center;
  justify-content: space-between;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-bottom .sep {
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.3);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .quick-entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .method-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .misconception-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--section-pad-mobile) 0;
  }
  .hamburger {
    display: flex;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--primary);
    padding: 16px 20px;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 10px 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
  }
  .main-nav a.active,
  .main-nav a:hover {
    color: var(--accent);
  }
  .main-nav a::after {
    display: none;
  }
  .quick-entry-grid {
    grid-template-columns: 1fr;
  }
  .step-guide-item {
    grid-template-columns: 40px 1fr;
    gap: 14px;
    padding: 16px 0 24px;
  }
  .step-guide-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  .steps-guide-wrapper::before {
    left: 19px;
  }
  .step-guide-body {
    padding: 20px 18px;
  }
  .method-grid {
    grid-template-columns: 1fr;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .misconception-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .page-banner {
    padding: 40px 0 36px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .page-banner h1 {
    font-size: 1.6rem;
  }
  .btn {
    width: 100%;
    padding: 12px 18px;
    font-size: 14px;
  }
  .cta-section .btn-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .step-guide-body {
    padding: 16px 14px;
  }
  .step-guide-body h3 {
    font-size: 1.1rem;
  }
}

/* roulang page: category6 */
:root {
            --primary: #1a2e2a;
            --primary-light: #243a34;
            --accent: #d4a24e;
            --accent-hover: #c1923e;
            --bg-warm: #f5f0e8;
            --bg-white: #ffffff;
            --secondary: #3a7d6c;
            --secondary-light: rgba(58, 125, 108, 0.2);
            --copper: #b87333;
            --text-main: #2d2d2d;
            --text-secondary: #666666;
            --text-light: #999999;
            --border-light: #e0ddd5;
            --border-mid: #d5d0c5;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 4px;
            --radius-img: 12px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 4px 40px rgba(0, 0, 0, 0.15);
            --shadow-accent: 0 4px 16px rgba(212, 162, 78, 0.3);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --section-pad-mobile: 48px;
            --transition: 0.25s ease;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            font-weight: 400;
            color: var(--text-main);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

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

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

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }

        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            min-height: 64px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--copper));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 1px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 400;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
            border-radius: 2px;
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background-color: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

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

        .hamburger.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* ========== 步骤条 ========== */
        .steps-bar {
            background-color: var(--primary-light);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .steps-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: max-content;
            padding: 0 20px;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .step-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .step-item a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .step-item a:hover .step-num {
            background-color: var(--accent);
            color: var(--primary);
        }

        .step-connector {
            width: 32px;
            height: 1px;
            background-color: rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
            margin: 0 6px;
        }

        /* ========== FAQ Banner ========== */
        .faq-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #2d4a3e 100%);
            padding: 56px 0 44px;
            position: relative;
            overflow: hidden;
            border-bottom: 3px solid var(--accent);
        }

        .faq-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 162, 78, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .faq-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(58, 125, 108, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .faq-banner .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .faq-banner-content {
            flex: 1;
            min-width: 280px;
            max-width: 700px;
        }

        .faq-banner-content h1 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 14px;
        }

        .faq-banner-content h1 .highlight {
            color: var(--accent);
        }

        .faq-banner-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            line-height: 1.7;
            margin: 0;
        }

        .faq-banner-badge {
            display: inline-block;
            background-color: var(--accent);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .faq-banner-stat {
            flex-shrink: 0;
            display: flex;
            gap: 24px;
            align-items: center;
        }

        .faq-banner-stat .stat-box {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 18px 24px;
            text-align: center;
            min-width: 130px;
        }

        .faq-banner-stat .stat-box .num {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .faq-banner-stat .stat-box .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ========== 分类筛选标签 ========== */
        .filter-section {
            padding: 28px 0 0;
        }

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

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 500;
            background-color: var(--bg-white);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--secondary);
            color: var(--secondary);
        }

        .filter-btn.active {
            background-color: var(--secondary);
            border-color: var(--secondary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(58, 125, 108, 0.3);
        }

        .filter-btn .count {
            font-size: 12px;
            opacity: 0.75;
        }

        /* ========== FAQ 主区域布局 ========== */
        .faq-main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: start;
        }

        .faq-accordion-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-group-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary);
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 8px;
        }

        .faq-group-title .group-icon {
            width: 32px;
            height: 32px;
            background-color: var(--secondary-light);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: color var(--transition);
        }

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

        .faq-item.active .faq-question {
            color: var(--secondary);
        }

        .faq-question .q-text {
            flex: 1;
            line-height: 1.5;
        }

        .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            font-size: 12px;
            color: var(--text-secondary);
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            background-color: var(--secondary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        /* ========== 侧边面板 ========== */
        .faq-sidebar {
            position: sticky;
            top: 120px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .side-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-card ul li {
            margin-bottom: 6px;
        }

        .side-card ul li a {
            display: block;
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .side-card ul li a:hover {
            background-color: var(--secondary-light);
            color: var(--secondary);
        }

        .side-card .side-cover {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 12px;
        }

        .side-card .side-help-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .side-card .side-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background-color: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .side-card .side-btn:hover {
            background-color: var(--accent-hover);
            box-shadow: var(--shadow-accent);
        }

        .side-card .side-note {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 8px;
            line-height: 1.5;
        }

        /* ========== 未找到答案 CTA ========== */
        .not-found-cta {
            background: linear-gradient(135deg, var(--secondary) 0%, #2d6656 100%);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .not-found-cta .cta-text h3 {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .not-found-cta .cta-text p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            margin: 0;
        }

        .not-found-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background-color: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .not-found-cta .cta-btn:hover {
            background-color: var(--accent-hover);
            box-shadow: var(--shadow-accent);
            transform: translateY(-2px);
        }

        /* ========== 需求提交区块 ========== */
        .contact-form-section {
            background-color: var(--secondary);
            padding: 60px 0;
        }

        .contact-form-section .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .contact-form-info h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            margin-bottom: 12px;
        }

        .contact-form-info p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .contact-form-info .info-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .contact-form-info .info-list li {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .contact-form-info .info-list li::before {
            content: '✓';
            color: var(--accent);
            font-weight: 700;
        }

        .form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-lg);
        }

        .form-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 16px;
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            background-color: var(--bg-white);
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(58, 125, 108, 0.2);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-light);
        }

        .form-submit-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background-color: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            width: auto;
        }

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

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

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

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 20px;
        }

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

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 420px;
        }

        .footer-links h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            padding: 4px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .footer-bottom .sep {
            margin: 0 8px;
            opacity: 0.5;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }

            .faq-main {
                grid-template-columns: 1fr;
            }

            .faq-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .faq-sidebar .side-card {
                flex: 1;
                min-width: 250px;
            }

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

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--primary);
                padding: 16px 20px;
                gap: 12px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
                border-top: 1px solid rgba(255, 255, 255, 0.1);
            }

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

            .main-nav a {
                padding: 10px 0;
                font-size: 16px;
                display: block;
                width: 100%;
            }

            .hamburger {
                display: flex;
            }

            .section {
                padding: var(--section-pad-mobile) 0;
            }

            .faq-banner-stat {
                flex-direction: row;
                width: 100%;
                gap: 12px;
            }

            .faq-banner-stat .stat-box {
                flex: 1;
                min-width: auto;
                padding: 12px 16px;
            }

            .faq-banner {
                padding: 40px 0 32px;
            }

            .faq-sidebar {
                flex-direction: column;
            }

            .faq-sidebar .side-card {
                min-width: auto;
            }

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

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

            .steps-bar .step-connector {
                width: 16px;
            }

            .step-item a span.step-text {
                font-size: 13px;
            }

            .not-found-cta {
                flex-direction: column;
                align-items: flex-start;
            }

            .not-found-cta .cta-btn {
                width: 100%;
                justify-content: center;
            }

            .filter-row {
                gap: 8px;
            }

            .filter-btn {
                padding: 7px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .faq-banner-content h1 {
                font-size: 1.6rem;
            }

            .faq-banner-stat {
                gap: 8px;
            }

            .faq-banner-stat .stat-box .num {
                font-size: 1.3rem;
            }

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

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }

            .form-card {
                padding: 20px;
            }

            .contact-form-section {
                padding: 40px 0;
            }

            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
            }
        }