/* 变量及根设置 */
        :root {
            --primary: #E91E63;
            --primary-hover: #D81B60;
            --primary-light: #FCE4EC;
            --secondary: #FF4081;
            --dark: #2C3E50;
            --text-main: #333333;
            --text-muted: #666666;
            --bg-light: #FFF5F7;
            --bg-white: #FFFFFF;
            --border-color: #F8D7DA;
            --transition: all 0.3s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
        }

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

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

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
        }

        /* 顶部导航 */
        header {
            background-color: var(--bg-white);
            box-shadow: 0 2px 10px rgba(233, 30, 99, 0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

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

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

        .logo-text {
            font-size: 1.2rem;
            font-weight: bold;
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 20px;
        }

        .nav-item a {
            color: var(--dark);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: 20px !important;
        }

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

        /* 移动端导航切换 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero {
            background: linear-gradient(135deg, #FFF5F7 0%, #FCE4EC 100%);
            padding: 100px 0 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 40%;
            height: 80%;
            background: radial-gradient(circle, rgba(255, 64, 129, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 50%;
            height: 90%;
            background: radial-gradient(circle, rgba(233, 30, 99, 0.06) 0%, transparent 60%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: bold;
            border-radius: 30px;
            transition: var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(233, 30, 99, 0.3);
            color: #fff;
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

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

        /* 标签云组件 */
        .hero-tags {
            margin-top: 40px;
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .tag {
            background-color: #fff;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            padding: 4px 12px;
            border-radius: 15px;
            font-size: 0.85rem;
        }

        .tag.highlight {
            color: var(--primary);
            background-color: var(--primary-light);
            border-color: var(--secondary);
        }

        /* 通用标题风格 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2rem;
            color: var(--dark);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1rem;
        }

        /* 数据指标卡片 */
        .stats-section {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-card {
            padding: 30px 20px;
            border-radius: 10px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(233, 30, 99, 0.05);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--dark);
            font-weight: 500;
        }

        /* 关于我们与软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .about-info h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .about-info p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
            text-align: justify;
        }

        .feature-bullets {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .bullet-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .bullet-item::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        .about-software {
            background-color: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 40px;
            box-shadow: 0 5px 15px rgba(233, 30, 99, 0.03);
        }

        /* 服务能力体系 */
        .services-section {
            background-color: var(--bg-white);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(233, 30, 99, 0.08);
            border-color: var(--secondary);
        }

        .service-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 流程步骤 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            font-weight: bold;
        }

        .process-step h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .comparison-table-wrapper {
            overflow-x: auto;
            background-color: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            white-space: nowrap;
        }

        .comparison-table th {
            background-color: var(--primary-light);
            color: var(--dark);
            font-weight: 600;
        }

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

        .comparison-table .highlight-row {
            background-color: rgba(255, 64, 129, 0.03);
        }

        .comparison-table .highlight-cell {
            color: var(--primary);
            font-weight: bold;
        }

        .badge-score {
            display: inline-block;
            background-color: var(--primary);
            color: #fff;
            padding: 2px 8px;
            border-radius: 12px;
            font-size: 0.8rem;
        }

        /* 案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(233, 30, 99, 0.06);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: #eee;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 20px;
        }

        .case-content h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .case-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .case-meta {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: bold;
        }

        /* Token 比价参考 */
        .token-pricing {
            background-color: var(--bg-white);
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--secondary);
            background-color: var(--bg-light);
            transform: translateY(-3px);
        }

        .training-card h3 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .training-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 自助排查工具 & 百科 */
        .help-center-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .help-panel {
            background-color: var(--bg-white);
            border-radius: 10px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

        .help-panel h3 {
            margin-bottom: 20px;
            font-size: 1.3rem;
            color: var(--dark);
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 10px;
        }

        .accordion-item {
            border-bottom: 1px solid #f1f1f1;
            padding: 12px 0;
        }

        .accordion-title {
            font-weight: bold;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
        }

        .accordion-content {
            display: none;
            padding-top: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAQ折叠面板 */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .faq-item {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .faq-q {
            font-weight: bold;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-a {
            display: none;
            margin-top: 15px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid #f5f5f5;
            padding-top: 15px;
        }

        /* 用户评论 */
        .reviews-section {
            background-color: var(--bg-white);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            position: relative;
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--text-main);
            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: 0.95rem;
            color: var(--dark);
        }

        .user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 需求表单 */
        .form-section {
            background: linear-gradient(135deg, #FFF5F7 0%, #FCE4EC 100%);
        }

        .form-container {
            max-width: 800px;
            margin: 0 auto;
            background-color: var(--bg-white);
            border-radius: 15px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(233, 30, 99, 0.05);
            border: 1px solid var(--border-color);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--dark);
        }

        .form-control {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 5px rgba(233, 30, 99, 0.2);
        }

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

        .form-btn-wrapper {
            text-align: center;
            margin-top: 30px;
        }

        /* 文章列表/知识库 */
        .articles-section {
            background-color: var(--bg-white);
        }

        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-item {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-item h3 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .article-item .article-link {
            font-size: 0.9rem;
            font-weight: 500;
            align-self: flex-start;
        }

        /* 联系我们与服务网络 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-icon {
            font-size: 1.2rem;
            color: var(--primary);
            margin-top: 4px;
        }

        .contact-text h4 {
            font-size: 1rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .contact-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .kefu-area {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(233, 30, 99, 0.03);
        }

        .kefu-qr {
            width: 150px;
            height: 150px;
            margin: 0 auto 15px auto;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 5px;
            background-color: #fff;
        }

        .kefu-qr img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .kefu-area h4 {
            color: var(--dark);
            margin-bottom: 5px;
        }

        .kefu-area p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #b2c2d3;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-column h3 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
            font-weight: 600;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: #b2c2d3;
        }

        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }

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

        .friend-links a {
            background-color: rgba(255, 255, 255, 0.05);
            color: #b2c2d3;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        .footer-bottom p {
            margin-bottom: 10px;
        }

        /* 侧边悬浮窗口 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .widget-item {
            width: 48px;
            height: 48px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(233, 30, 99, 0.3);
            position: relative;
            transition: var(--transition);
        }

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

        .widget-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: #fff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            display: none;
            width: 160px;
            text-align: center;
            color: var(--text-main);
        }

        .widget-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .widget-popover span {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: block;
        }

        .widget-item:hover .widget-popover {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #fff;
                padding: 20px;
                border-top: 1px solid var(--border-color);
                box-shadow: 0 5px 10px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .about-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                grid-template-columns: 1fr;
            }
            .help-center-grid {
                grid-template-columns: 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .article-list {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }