:root {
      --primary-color: #4f46e5;
      --primary-hover: #4338ca;
      --secondary-color: #06b6d4;
      --accent-color: #f43f5e;
      --accent-orange: #ff6b35;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-soft: #f1f5f9;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
    }

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

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section-padding {
      padding: 72px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: linear-gradient(135deg, #e0e7ff 0%, #ede9fe 100%);
      color: var(--primary-color);
      font-size: 13px;
      font-weight: 700;
      border-radius: 9999px;
      margin-bottom: 12px;
      border: 1px solid #c7d2fe;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #4338ca 0%, #6d28d9 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(79, 70, 229, 0.45);
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--primary-color);
      border-color: #cbd5e1;
    }

    .btn-secondary:hover {
      border-color: var(--primary-color);
      background: #f8fafc;
      transform: translateY(-2px);
    }

    .btn-accent {
      background: linear-gradient(135deg, #ff6b35 0%, #f43f5e 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(244, 63, 94, 0.35);
    }

    .btn-accent:hover {
      background: linear-gradient(135deg, #ea580c 0%, #e11d48 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(244, 63, 94, 0.45);
    }

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

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo-wrap {
      max-height: 40px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #0f172a;
      background: linear-gradient(90deg, #4f46e5, #ec4899);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-item {
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      transition: color 0.2s ease;
    }

    .nav-item:hover, .nav-item.active {
      color: var(--primary-color);
      font-weight: 600;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

    /* 首屏 Hero */
    .hero-section {
      background: radial-gradient(circle at 10% 20%, rgba(244, 63, 94, 0.08) 0%, rgba(79, 70, 229, 0.08) 50%, rgba(6, 182, 212, 0.08) 100%), #ffffff;
      padding: 84px 0 64px;
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .hero-inner {
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #fff;
      border: 1px solid #e0e7ff;
      border-radius: 9999px;
      font-size: 14px;
      font-weight: 600;
      color: #4338ca;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 40px;
      font-weight: 900;
      color: #0f172a;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 18px;
      color: #475569;
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
      border: 1px solid #e2e8f0;
    }

    .stat-box {
      text-align: center;
    }

    .stat-number {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-color);
      display: block;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 关于与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .about-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .feature-item {
      padding: 16px;
      background: var(--bg-soft);
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--primary-color);
    }

    .feature-item h4 {
      font-size: 15px;
      color: #0f172a;
      margin-bottom: 6px;
    }

    .feature-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .model-badge-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .model-tag {
      padding: 6px 12px;
      background: #fff;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      color: #334155;
    }

    /* AIGC 服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .service-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #c7d2fe;
    }

    .service-icon-bar {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: linear-gradient(135deg, #e0e7ff 0%, #ede9fe 100%);
      color: var(--primary-color);
      font-weight: 800;
      margin-bottom: 16px;
      font-size: 18px;
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .service-meta {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px dashed var(--border-color);
      font-size: 12px;
      color: var(--primary-color);
      font-weight: 600;
    }

    /* 标准流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .process-node {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      position: relative;
    }

    .node-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #7c3aed);
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
      margin-bottom: 12px;
    }

    .node-title {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .node-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测 */
    .review-score-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
      box-shadow: var(--shadow-lg);
    }

    .score-left h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .score-left p {
      color: #c7d2fe;
      font-size: 15px;
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .star-rate {
      color: #fbbf24;
      font-size: 22px;
      letter-spacing: 2px;
    }

    .score-digital {
      font-size: 48px;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1;
    }

    .score-digital span {
      font-size: 20px;
      color: #94a3b8;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .comparison-table th, .comparison-table td {
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background: #f8fafc;
      color: #0f172a;
      font-weight: 700;
    }

    .comparison-table td:nth-child(2) {
      background: #eef2ff;
      color: var(--primary-color);
      font-weight: 700;
    }

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

    /* 案例展示 */
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 32px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-image-holder {
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-image-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .case-content {
      padding: 20px;
      flex-grow: 1;
    }

    .case-title {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #6366f1, #a855f7);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }

    .reviewer-info h4 {
      font-size: 15px;
      color: #0f172a;
    }

    .reviewer-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    .review-text {
      font-size: 14px;
      color: #334155;
      line-height: 1.6;
    }

    /* Token 比价 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      text-align: center;
      transition: all 0.25s ease;
    }

    .token-card.featured {
      border: 2px solid var(--primary-color);
      box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
    }

    .token-name {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .token-price {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent-orange);
      margin-bottom: 8px;
    }

    .token-price span {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 400;
    }

    .token-feature {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      text-align: left;
      background: none;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 16px;
      font-weight: 600;
      color: #0f172a;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 20px;
      transition: transform 0.2s ease;
      color: var(--primary-color);
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: #475569;
      line-height: 1.7;
      display: none;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    /* 需求匹配与表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-col {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-item-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin: 24px 0;
    }

    .contact-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 15px;
      color: #334155;
    }

    .qr-container {
      display: inline-block;
      padding: 10px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      max-width: 140px;
    }

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

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: #0f172a;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s ease;
      background: #fdfdfd;
      color: #0f172a;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background: #ffffff;
    }

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

    /* 资讯与友情链接 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }

    .news-card {
      background: #ffffff;
      padding: 20px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-card a {
      font-size: 15px;
      font-weight: 600;
      color: #1e293b;
      margin-bottom: 8px;
      display: block;
    }

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

    .news-date {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 底部通用 Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links-list li {
      margin-bottom: 10px;
    }

    .footer-links-list a {
      color: #94a3b8;
      font-size: 14px;
      transition: color 0.2s ease;
    }

    .footer-links-list a:hover {
      color: #ffffff;
    }

    .footer-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-friend-links a {
      color: #94a3b8;
      font-size: 13px;
      background: #1e293b;
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }

    .footer-friend-links a:hover {
      color: #38bdf8;
      background: #334155;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: #64748b;
    }

    /* 浮动客服 */
    .float-service-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      position: relative;
    }

    .float-qr-pop {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 150px;
      text-align: center;
    }

    .float-qr-pop p {
      font-size: 12px;
      color: var(--text-main);
      margin-top: 6px;
    }

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

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid, .case-gallery, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid, .token-grid, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-item {
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .hero-title {
        font-size: 28px;
      }
      .services-grid, .case-gallery, .reviews-grid, .about-grid, .contact-wrapper, .news-grid {
        grid-template-columns: 1fr;
      }
      .hero-stats-grid, .token-grid, .process-timeline {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .review-score-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }