:root {
            --primary-color: #00C853; /* 鲜绿色 */
            --primary-hover: #00E676;
            --primary-light: #E8F5E9;
            --dark-color: #1A1D1A; /* 深灰/近黑 */
            --text-color: #333F35; /* 深绿正文 */
            --text-muted: #6B7C6E;
            --bg-light: #F4F8F5; /* 极浅暖绿底 */
            --white: #FFFFFF;
            --border-color: #E0E8E1;
            --max-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-light);
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一外层居中容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 统一的区块间距 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
            background-color: var(--white);
        }

        section:nth-of-type(odd) {
            background-color: var(--bg-light);
        }

        /* 头部标题样式 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background-color: var(--primary-color);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 按钮通用样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 200, 83, 0.3);
        }

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

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

        /* 导航栏 */
        header.site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            z-index: 1000;
            transition: var(--transition);
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

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

        .nav-links a {
            color: var(--text-color);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--white) !important;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: bold;
        }

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

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark-color);
            cursor: pointer;
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 100px;
            background: linear-gradient(135deg, #1A3E2B 0%, #0E2016 100%);
            color: var(--white);
            border-bottom: none;
            position: relative;
            overflow: hidden;
        }

        /* CSS 科技风几何装饰线条，不含图片 */
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero-tag {
            display: inline-block;
            background-color: rgba(0, 200, 83, 0.15);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(0, 200, 83, 0.3);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero-content h1 {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 25px;
            font-weight: 800;
            color: var(--white);
        }

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

        .hero-content p {
            font-size: 1.2rem;
            color: #C2D5C6;
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        .hero-btns .btn-primary {
            background-color: var(--primary-color);
            color: #0E2016;
            font-weight: 700;
        }

        .hero-btns .btn-primary:hover {
            background-color: var(--primary-hover);
            color: #0E2016;
        }

        .hero-btns .btn-outline {
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .hero-btns .btn-outline:hover {
            border-color: var(--primary-color);
            background-color: rgba(0, 200, 83, 0.1);
        }

        /* 数据指标卡片 */
        .stats-section {
            padding: 50px 0;
            background-color: var(--white);
            margin-top: -40px;
            position: relative;
            z-index: 20;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

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

        .stat-item h3 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 10px;
            font-weight: 800;
        }

        .stat-item p {
            color: var(--text-color);
            font-size: 1rem;
            font-weight: 500;
        }

        /* 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 35px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--primary-color);
            transform: scaleY(0);
            transition: var(--transition);
            transform-origin: bottom;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 200, 83, 0.08);
            border-color: var(--primary-color);
        }

        .service-card:hover::before {
            transform: scaleY(1);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.3rem;
            color: var(--dark-color);
            margin-bottom: 15px;
        }

        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 标签云 - AI平台聚合 */
        .tags-wrapper {
            margin-top: 40px;
            text-align: center;
            background-color: var(--bg-light);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .tags-title {
            font-size: 1.1rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            font-weight: 600;
        }

        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-item {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-color);
            transition: var(--transition);
        }

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

        /* 标准化流程 */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .process-item {
            text-align: center;
            position: relative;
            background-color: var(--white);
            padding: 30px 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .process-step {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
            margin: 0 auto 20px;
        }

        .process-item h3 {
            font-size: 1.2rem;
            color: var(--dark-color);
            margin-bottom: 10px;
        }

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

        /* 对比评测表格 */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            background-color: var(--white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .comparison-table td.highlight-cell {
            background-color: var(--primary-light);
            font-weight: 600;
        }

        .comparison-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: bold;
        }

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

        .badge-gray {
            background-color: #E2E8F0;
            color: #4A5568;
        }

        /* 评测卡片组件 */
        .rating-card {
            background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
            border: 2px solid var(--primary-color);
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-info {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .rating-score {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary-color);
            line-height: 1;
        }

        .rating-stars {
            color: #FFB300;
            font-size: 1.5rem;
        }

        .rating-details h3 {
            font-size: 1.4rem;
            color: var(--dark-color);
            margin-bottom: 5px;
        }

        .rating-details p {
            color: var(--text-color);
            font-size: 0.95rem;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .token-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
        }

        .token-card h3 {
            margin-bottom: 20px;
            color: var(--dark-color);
            border-left: 4px solid var(--primary-color);
            padding-left: 10px;
        }

        .token-row {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        .token-row:last-child {
            border-bottom: none;
        }

        .token-price {
            color: var(--primary-color);
            font-weight: 600;
        }

        /* 案例展示 - 含特定图片与响应式排版 */
        .case-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }

        .case-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-right {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .image-container {
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            background-color: var(--white);
        }

        .image-container img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: var(--transition);
        }

        .image-container:hover img {
            transform: scale(1.03);
        }

        .image-caption {
            padding: 15px;
            background-color: var(--white);
            border-top: 1px solid var(--border-color);
        }

        .image-caption h4 {
            color: var(--dark-color);
            margin-bottom: 5px;
            font-size: 1.1rem;
        }

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

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

        .training-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 200, 83, 0.05);
        }

        .training-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }

        .training-card h3 {
            font-size: 1rem;
            color: var(--dark-color);
            margin-bottom: 10px;
        }

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

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            position: relative;
        }

        .comment-text {
            font-size: 0.95rem;
            color: var(--text-color);
            margin-bottom: 20px;
            font-style: italic;
        }

        .comment-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .author-avatar {
            width: 45px;
            height: 45px;
            background-color: var(--primary-light);
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--dark-color);
        }

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

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 20px;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-light);
        }

        .faq-answer-inner {
            padding: 20px;
            font-size: 0.95rem;
            color: var(--text-color);
            border-top: 1px solid var(--border-color);
        }

        /* 行业资讯 / 知识库 */
        .articles-list {
            list-style: none;
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .articles-list li {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            transition: var(--transition);
        }

        .articles-list li:hover {
            border-color: var(--primary-color);
            transform: translateX(5px);
        }

        .articles-list a {
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
        }

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

        .article-date {
            color: var(--text-muted);
            font-size: 0.85rem;
            white-space: nowrap;
        }

        /* 联系与表单区 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: start;
        }

        .contact-info-block {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px;
        }

        .contact-info-block h3 {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin-bottom: 25px;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .qr-item {
            text-align: center;
            flex: 1;
        }

        .qr-item img {
            width: 100%;
            max-width: 130px;
            height: auto;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 5px;
            background: #fff;
        }

        .qr-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .contact-form {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--dark-color);
            font-size: 0.95rem;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.15);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        /* 浮动客服中心 */
        .float-service {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            position: relative;
            transition: var(--transition);
            color: var(--primary-color);
            text-decoration: none;
        }

        .float-btn:hover {
            background-color: var(--primary-color);
            color: var(--white);
            transform: scale(1.05);
        }

        .float-tooltip {
            position: absolute;
            right: 60px;
            top: 50%;
            transform: translateY(-50%) scale(0.9);
            background-color: var(--white);
            border: 1px solid var(--border-color);
            padding: 10px 15px;
            border-radius: 8px;
            font-size: 0.85rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            color: var(--text-color);
        }

        .float-btn:hover .float-tooltip {
            opacity: 1;
            visibility: visible;
            transform: translateY(-50%) scale(1);
        }

        /* 页脚区域 */
        footer.site-footer {
            background-color: #0E2016;
            color: #C2D5C6;
            padding: 60px 0 30px;
            border-top: none;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1.5fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 40px;
            width: auto;
            margin-bottom: 15px;
        }

        .footer-column h4 {
            color: var(--white);
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: #C2D5C6;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.9rem;
        }

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

        .friend-links-area {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 25px;
            margin-bottom: 25px;
        }

        .friend-links-title {
            font-size: 0.9rem;
            color: var(--white);
            margin-bottom: 12px;
            font-weight: 600;
        }

        .friend-links-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-flex a {
            color: #8CA793;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .copyright-area {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 25px;
            text-align: center;
            font-size: 0.85rem;
            color: #8CA793;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-grid, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid, .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-links {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                border-bottom: 1px solid var(--border-color);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease-in-out;
            }
            .nav-links.active {
                max-height: 500px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 15px;
            }
            .services-grid, .process-grid, .comments-grid, .training-grid, .contact-layout, .footer-grid, .case-grid {
                grid-template-columns: 1fr;
            }
            .token-grid {
                grid-template-columns: 1fr;
            }
        }