:root {
            --primary: #10b981;
            --primary-hover: #059669;
            --primary-light: #ecfdf5;
            --dark: #111827;
            --gray-text: #4b5563;
            --light-gray: #f3f4f6;
            --border-color: #e5e7eb;
            --max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #ffffff;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

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

        .logo-wrap img {
            max-height: 40px;
            width: auto;
        }

        nav {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links {
            display: flex;
            gap: 20px;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--gray-text);
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-btn {
            background-color: var(--primary);
            color: white;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: 500;
            font-size: 14px;
            transition: background 0.3s;
        }

        .nav-btn:hover {
            background-color: var(--primary-hover);
            color: white;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
        }

        /* Hero 首屏 (无图片) */
        .hero {
            background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
            padding: 100px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 40%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
        }

        .hero p {
            font-size: 18px;
            color: var(--gray-text);
            margin-bottom: 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .btn-main {
            background-color: var(--primary);
            color: white;
            padding: 14px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
        }

        .btn-main:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
        }

        .btn-sub {
            background-color: white;
            color: var(--dark);
            border: 1px solid var(--border-color);
            padding: 14px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
        }

        .btn-sub:hover {
            background-color: var(--light-gray);
            transform: translateY(-2px);
        }

        /* 统一样式板块 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .section-title p {
            color: var(--gray-text);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 数据卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-card h3 {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .stat-card p {
            font-size: 14px;
            color: var(--gray-text);
        }

        /* 服务能力与场景 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
            transition: all 0.3s;
        }

        .service-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.05);
        }

        .service-card .icon-box {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--gray-text);
        }

        /* 聚合标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 900px;
            margin: 30px auto 0;
        }

        .tag-item {
            background: white;
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            color: var(--dark);
            transition: all 0.3s;
        }

        .tag-item:hover {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* 标准化流程 & 时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding: 0 40px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            position: absolute;
            top: 6px;
            z-index: 2;
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }

        .timeline-content {
            background: var(--light-gray);
            padding: 20px;
            border-radius: 8px;
        }

        .timeline-content h3 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 8px;
        }

        /* 对比表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            min-width: 600px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background-color: var(--primary-light);
            color: var(--dark);
            font-weight: 700;
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table .highlight {
            background-color: rgba(16, 185, 129, 0.05);
            font-weight: 600;
        }

        .badge-star {
            color: #fbbf24;
            font-size: 16px;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
        }

        .case-img-box {
            background: var(--light-gray);
            height: 240px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .case-info p {
            color: var(--gray-text);
            font-size: 14px;
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            position: relative;
        }

        .review-text {
            font-size: 14px;
            color: var(--gray-text);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .user-info h4 {
            font-size: 14px;
            margin-bottom: 2px;
        }

        .user-info span {
            font-size: 12px;
            color: var(--gray-text);
        }

        /* 折叠面板 (FAQ) */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: white;
            overflow: hidden;
        }

        .faq-quest {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background 0.3s;
        }

        .faq-quest:hover {
            background-color: var(--primary-light);
        }

        .faq-quest::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-quest::after {
            content: '-';
        }

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

        .faq-ans-inner {
            padding: 0 24px 20px;
            color: var(--gray-text);
            font-size: 14px;
            border-top: 1px solid var(--border-color);
        }

        /* 需求收集 & 加盟代理表单 */
        .contact-section {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .form-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            font-size: 14px;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            transition: border 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        .info-card {
            background: var(--light-gray);
            padding: 40px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-item {
            margin-bottom: 24px;
        }

        .info-item h4 {
            margin-bottom: 6px;
            color: var(--dark);
        }

        .info-item p {
            font-size: 14px;
            color: var(--gray-text);
        }

        .qr-box {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 20px;
        }

        .qr-box img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
        }

        .qr-info p {
            font-size: 13px;
            color: var(--gray-text);
        }

        /* 知识库板块 */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .article-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 8px;
            transition: transform 0.3s;
        }

        .article-card:hover {
            transform: translateY(-3px);
        }

        .article-card h3 {
            font-size: 16px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-card a {
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #9ca3af;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: white;
            margin-bottom: 16px;
        }

        .footer-col h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 16px;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

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

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }

        .friend-links a {
            color: #9ca3af;
            font-size: 12px;
        }

        .friend-links a:hover {
            color: var(--primary);
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            cursor: pointer;
            position: relative;
        }

        .float-item:hover {
            background-color: var(--primary-light);
        }

        .float-qr-pop {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            text-align: center;
            width: 140px;
        }

        .float-qr-pop img {
            width: 110px;
            height: 110px;
        }

        .float-item:hover .float-qr-pop {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .contact-section {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 45px;
                padding-right: 0;
            }
            .timeline-item:nth-child(odd), .timeline-item:nth-child(even) {
                left: 0;
                text-align: left;
            }
            .timeline-item:nth-child(odd) .timeline-dot, .timeline-item:nth-child(even) .timeline-dot {
                left: 12px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-btns {
                flex-direction: column;
                padding: 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }