:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --secondary: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --accent-emerald: #10b981;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --gradient-pop: linear-gradient(135deg, #6366f1 0%, #d946ef 50%, #f97316 100%);
      --gradient-warm: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
      --gradient-cool: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 30px -10px rgba(99, 102, 241, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }
    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-box img {
      max-height: 42px;
      width: auto;
      object-fit: contain;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--gradient-pop);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-dark);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: block;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background-color: #eef2ff;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-nav-primary {
      background: var(--gradient-pop);
      color: #ffffff !important;
      font-size: 0.9rem;
      font-weight: 700;
      padding: 10px 20px;
      border-radius: 9999px;
      box-shadow: 0 4px 14px rgba(217, 70, 239, 0.35);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(217, 70, 239, 0.45);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
      padding: 6px;
    }
    /* 首屏 Hero 无图片 Pure CSS 极艳彩风格 */
    .hero-section {
      position: relative;
      padding: 90px 0 80px;
      background: radial-gradient(circle at 10% 20%, rgba(217, 70, 239, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 45%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 9999px;
      background: linear-gradient(90deg, #fdf2f8, #eef2ff);
      border: 1px solid #fbcfe8;
      color: #be185d;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #ec4899;
      box-shadow: 0 0 10px #ec4899;
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.2;
      letter-spacing: -1px;
      color: var(--text-dark);
      margin-bottom: 20px;
    }
    .hero-title-gradient {
      background: var(--gradient-pop);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }
    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-btn-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .btn-main-action {
      background: var(--gradient-pop);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      padding: 14px 36px;
      border-radius: 12px;
      box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-main-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(217, 70, 239, 0.45);
      color: #ffffff;
    }
    .btn-sub-action {
      background: #ffffff;
      color: var(--text-dark);
      font-size: 1.1rem;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 12px;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-sub-action:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: #f5f3ff;
    }
    .hero-stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .stat-item {
      text-align: center;
      border-right: 1px solid var(--border-color);
    }
    .stat-item:last-child {
      border-right: none;
    }
    .stat-val {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .stat-val.color-pink { color: var(--secondary); }
    .stat-val.color-cyan { color: var(--accent-cyan); }
    .stat-val.color-amber { color: var(--accent-amber); }
    .stat-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    /* 公用 Section */
    .section-padding {
      padding: 72px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: #e0e7ff;
      padding: 4px 12px;
      border-radius: 6px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 网格与卡片 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .card-modern {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .card-modern:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .card-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      background: #f1f5f9;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
    }
    .card-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .card-highlight-border {
      border-top: 4px solid var(--secondary);
    }
    /* 平台矩阵标签云 */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }
    .model-pill {
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-dark);
      padding: 8px 18px;
      border-radius: 9999px;
      font-size: 0.88rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s;
    }
    .model-pill:hover {
      border-color: var(--secondary);
      color: var(--secondary);
      transform: scale(1.05);
    }
    /* 对比评测表格 */
    .eval-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 36px;
    }
    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      margin-bottom: 24px;
      border-bottom: 2px dashed var(--border-color);
    }
    .eval-score-left {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .score-circle {
      width: 72px;
      height: 72px;
      border-radius: 50%;
      background: var(--gradient-pop);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 1.7rem;
      font-weight: 900;
      box-shadow: 0 6px 16px rgba(217, 70, 239, 0.35);
    }
    .eval-star-rating {
      color: #f59e0b;
      font-size: 1.4rem;
      font-weight: 700;
      letter-spacing: 2px;
    }
    .table-responsive {
      overflow-x: auto;
      width: 100%;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .custom-table th {
      background: #f8fafc;
      color: var(--text-dark);
      font-weight: 700;
    }
    .custom-table td.brand-col {
      font-weight: 700;
      color: var(--primary);
      background-color: #f5f3ff;
    }
    .badge-win {
      background: #ecfdf5;
      color: #059669;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 4px;
      margin-left: 6px;
    }
    /* 图文展示与案例 */
    .image-showcase-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 30px;
    }
    .showcase-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .showcase-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f1f5f9;
      overflow: hidden;
    }
    .showcase-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .showcase-card:hover .showcase-img-wrap img {
      transform: scale(1.05);
    }
    .showcase-info {
      padding: 20px;
    }
    /* Token比价与套餐卡片 */
    .pricing-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 2px solid var(--border-color);
      padding: 36px 28px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .pricing-card.featured {
      border-color: var(--secondary);
      box-shadow: var(--shadow-lg);
    }
    .pricing-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--gradient-warm);
      color: #ffffff;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 9999px;
    }
    .pricing-price {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--text-dark);
      margin: 16px 0;
    }
    .pricing-price span {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    .pricing-list {
      list-style: none;
      margin: 24px 0 30px;
      text-align: left;
      font-size: 0.92rem;
      color: var(--text-muted);
    }
    .pricing-list li {
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-list li::before {
      content: "✓";
      color: var(--accent-emerald);
      font-weight: 900;
    }
    /* FAQ 折叠 */
    .faq-accordion {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      transition: transform 0.3s;
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    /* 客户评价网格 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .reviewer-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--gradient-cool);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }
    .reviewer-name {
      font-weight: 700;
      font-size: 0.98rem;
      color: var(--text-dark);
    }
    .reviewer-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .review-content {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 表单与联系 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      font-size: 0.95rem;
      color: var(--text-dark);
      background: #f8fafc;
      transition: all 0.2s;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    .contact-info-panel {
      background: linear-gradient(145deg, #f8fafc, #f1f5f9);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
    }
    .qr-container {
      text-align: center;
      margin: 20px 0;
      padding: 16px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: inline-block;
    }
    .qr-container img {
      max-width: 140px;
      height: auto;
      display: block;
      margin: 0 auto;
    }
    .contact-list-item {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .contact-list-item strong {
      color: var(--text-dark);
    }
    /* 文章与外链 */
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }
    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }
    .article-links-list a {
      font-size: 0.88rem;
      color: var(--primary);
      background: #eef2ff;
      padding: 6px 14px;
      border-radius: 6px;
      font-weight: 500;
    }
    .article-links-list a:hover {
      background: var(--primary);
      color: #ffffff;
    }
    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      margin-top: 70px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      padding-bottom: 40px;
      border-bottom: 1px solid #334155;
    }
    .footer-col h4 {
      color: #f8fafc;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }
    .friend-links-box {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid #334155;
      font-size: 0.85rem;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
      justify-content: center;
    }
    .friend-links-box a {
      color: #94a3b8;
    }
    .friend-links-box a:hover {
      color: #38bdf8;
    }
    /* 悬浮客服 */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--gradient-pop);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0,0,0,0.2);
      cursor: pointer;
      font-size: 1.2rem;
      border: none;
    }
    .float-btn:hover {
      transform: scale(1.1);
    }
    /* 响应式断点 */
    @media (max-width: 992px) {
      .grid-3, .grid-4, .image-showcase-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2.3rem;
      }
      .hero-stats-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item:nth-child(2) {
        border-right: none;
      }
      .stat-item {
        margin-bottom: 12px;
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .grid-2, .grid-3, .grid-4, .image-showcase-grid, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .hero-stats-bar {
        grid-template-columns: 1fr;
      }
      .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
      }
    }