:root {
      --primary-cyan: #0aa8a7;
      --primary-cyan-hover: #088e8d;
      --primary-dark: #074e5b;
      --accent-teal: #14b8a6;
      --accent-mint: #2dd4bf;
      --bg-page: #f7fafc;
      --bg-card: #ffffff;
      --bg-surface: #f0fdfa;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --border-cyan: #ccfbf1;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 20px -2px rgba(10, 168, 167, 0.08), 0 2px 6px -1px rgba(0,0,0,0.04);
      --shadow-lg: 0 10px 30px -4px rgba(10, 168, 167, 0.15), 0 4px 12px -2px rgba(0,0,0,0.05);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      background-image: 
        radial-gradient(at 0% 0%, rgba(204, 251, 241, 0.4) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(13, 148, 136, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* 容器体系统一标准 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(204, 251, 241, 0.8);
      transition: var(--transition);
    }

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      text-decoration: none;
      gap: 8px;
    }

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

    .brand-text-label {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    /* 导航链接 - 根据明确要求 gap 设为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-item a {
      display: block;
      padding: 8px 14px;
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.938rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-item a:hover,
    .nav-item a.active {
      color: var(--primary-cyan);
      background: var(--bg-surface);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      text-decoration: none;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      font-size: 0.938rem;
      line-height: 1.4;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--accent-teal) 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(10, 168, 167, 0.25);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-cyan-hover) 0%, var(--primary-cyan) 100%);
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(10, 168, 167, 0.35);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background: var(--bg-surface);
      color: var(--primary-dark);
      border-color: var(--primary-dark);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      margin: 4px 0;
      transition: var(--transition);
    }

    /* 首屏 Hero - 无图片，纯CSS与几何科技感 */
    .hero-section {
      padding: 70px 0 50px;
      position: relative;
      background: linear-gradient(180deg, rgba(240, 253, 250, 0.8) 0%, rgba(247, 250, 252, 0.4) 100%);
      border-bottom: 1px solid var(--border-cyan);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      max-width: 640px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      border-radius: 50px;
      color: var(--primary-cyan);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }

    .hero-tag span {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent-mint);
      display: inline-block;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.6); }
      70% { box-shadow: 0 0 0 8px rgba(45, 212, 191, 0); }
      100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0); }
    }

    .hero-title {
      font-size: 2.35rem;
      line-height: 1.25;
      color: var(--text-main);
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-title-highlight {
      background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-dark) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 32px;
    }

    .hero-cta-group .btn-lg {
      padding: 14px 28px;
      font-size: 1.05rem;
    }

    .hero-trust-metrics {
      display: flex;
      gap: 28px;
      padding-top: 24px;
      border-top: 1px dashed var(--border-color);
    }

    .metric-item {
      display: flex;
      flex-direction: column;
    }

    .metric-value {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-cyan);
      line-height: 1.2;
    }

    .metric-label {
      font-size: 0.813rem;
      color: var(--text-muted);
    }

    /* 首屏右侧纯CSS模拟的智能中枢仪表板 */
    .hero-dashboard {
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .dashboard-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 14px;
      margin-bottom: 16px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.813rem;
      font-weight: 600;
      color: var(--primary-cyan);
      background: var(--bg-surface);
      padding: 4px 10px;
      border-radius: 30px;
    }

    .dashboard-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 16px;
    }

    .dash-card {
      background: #f8fafc;
      padding: 12px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary-cyan);
    }

    .dash-card-title {
      font-size: 0.813rem;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .dash-card-info {
      font-size: 0.938rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 10px;
    }

    .model-pill {
      font-size: 0.75rem;
      padding: 3px 8px;
      background: var(--bg-surface);
      border: 1px solid var(--border-cyan);
      border-radius: 4px;
      color: var(--primary-dark);
      font-weight: 500;
    }

    /* 模块通用标题与版式 */
    section {
      padding: 60px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 46px;
    }

    .section-eyebrow {
      text-transform: uppercase;
      font-size: 0.813rem;
      letter-spacing: 1.5px;
      font-weight: 700;
      color: var(--primary-cyan);
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 1.95rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* 卡片网格与样式变化 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent-mint);
    }

    .card-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--bg-surface);
      border: 1px solid var(--border-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-cyan);
      margin-bottom: 18px;
      font-weight: bold;
      font-size: 1.2rem;
    }

    .feature-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 平台综合介绍与模型列表 */
    .platform-intro-box {
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

    .platform-intro-text {
      font-size: 1.05rem;
      color: var(--text-main);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .model-matrix-container {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-cyan);
    }

    .matrix-title {
      font-size: 0.938rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .models-chip-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid rgba(13, 148, 136, 0.2);
      color: var(--primary-dark);
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 0.813rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--primary-cyan);
      color: #ffffff;
      border-color: var(--primary-cyan);
    }

    /* 标准流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      transition: var(--transition);
    }

    .flow-step-card:hover {
      border-color: var(--primary-cyan);
      box-shadow: var(--shadow-sm);
    }

    .step-number {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--border-cyan);
      line-height: 1;
      margin-bottom: 10px;
    }

    .flow-step-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 案例中心图文展示 */
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

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

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }

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

    .case-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .banner-strip-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-box {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #ffffff;
    }

    .banner-box img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 对比评测要求板块 */
    .eval-section {
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .eval-highlight-box {
      display: flex;
      justify-content: space-around;
      align-items: center;
      background: linear-gradient(135deg, var(--bg-surface) 0%, #ffffff 100%);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 30px;
      text-align: center;
    }

    .eval-score-item h4 {
      font-size: 0.938rem;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .eval-score-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-cyan);
    }

    .star-rating {
      color: #f59e0b;
      font-size: 1.6rem;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .compare-table th, 
    .compare-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.938rem;
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .compare-table tr:hover td {
      background: var(--bg-surface);
    }

    .tag-superior {
      display: inline-block;
      padding: 3px 8px;
      background: #ccfbf1;
      color: #0f766e;
      border-radius: 4px;
      font-weight: 600;
      font-size: 0.813rem;
    }

    /* Token 比价板块 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .token-card:hover {
      border-color: var(--primary-cyan);
      transform: translateY(-2px);
    }

    .token-card.featured {
      border-color: var(--primary-cyan);
      box-shadow: 0 4px 18px rgba(10, 168, 167, 0.12);
      position: relative;
    }

    .token-card.featured::before {
      content: "算力特惠";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-cyan);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 2px 10px;
      border-radius: 20px;
      font-weight: 600;
    }

    .token-model-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .token-official-price {
      font-size: 0.875rem;
      color: var(--text-light);
      text-decoration: line-through;
      margin-bottom: 6px;
    }

    .token-current-price {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary-cyan);
      margin-bottom: 12px;
    }

    .token-features-list {
      list-style: none;
      text-align: left;
      font-size: 0.875rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .token-features-list li {
      margin-bottom: 8px;
      position: relative;
      padding-left: 18px;
    }

    .token-features-list li::before {
      content: "•";
      color: var(--primary-cyan);
      font-weight: bold;
      position: absolute;
      left: 4px;
    }

    /* 6条用户评论 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-content {
      font-size: 0.938rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 16px;
      position: relative;
    }

    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
    }

    .user-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--bg-surface);
      border: 1px solid var(--border-cyan);
      color: var(--primary-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-info h5 {
      font-size: 0.938rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-info span {
      font-size: 0.813rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-item.active {
      border-color: var(--primary-cyan);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      padding: 18px 22px;
      background: none;
      border: none;
      outline: none;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary-cyan);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, padding 0.3s ease;
      background: #fbfdfc;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 22px 18px 22px;
    }

    .faq-answer p {
      font-size: 0.938rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业资讯与文章 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .article-card-link {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      text-decoration: none;
      color: var(--text-main);
      display: block;
      transition: var(--transition);
    }

    .article-card-link:hover {
      border-color: var(--primary-cyan);
      background: var(--bg-surface);
      transform: translateY(-2px);
    }

    .article-badge {
      font-size: 0.75rem;
      color: var(--primary-cyan);
      font-weight: 600;
      margin-bottom: 6px;
      display: inline-block;
    }

    .article-title-text {
      font-size: 0.938rem;
      font-weight: 600;
      color: var(--text-main);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    /* 表单与联系模块 */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      font-size: 0.938rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary-cyan);
      box-shadow: 0 0 0 3px rgba(10, 168, 167, 0.15);
    }

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

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      font-size: 0.938rem;
      color: var(--text-main);
    }

    .contact-channel-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-qr-box {
      margin-top: 14px;
      display: flex;
      align-items: center;
      gap: 18px;
      padding: 16px;
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-cyan);
    }

    .contact-qr-box img {
      width: 110px;
      height: 110px;
      border-radius: var(--radius-sm);
      border: 1px solid #ffffff;
      background: #ffffff;
      object-fit: contain;
    }

    .qr-desc h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }

    .qr-desc p {
      font-size: 0.813rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #074e5b 0%, #0aa8a7 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }

    .partner-banner h2 {
      font-size: 1.85rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .partner-banner p {
      font-size: 1rem;
      color: #e0f2fe;
      max-width: 680px;
      margin: 0 auto 24px;
    }

    /* 页脚与友情链接 */
    footer.site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-cyan);
      padding: 40px 0 24px;
      margin-top: auto;
    }

    .footer-inner {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .footer-links-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 20px;
      font-size: 0.875rem;
    }

    .footer-links-label {
      font-weight: 700;
      color: var(--primary-dark);
    }

    .footer-links-row a {
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }

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

    .footer-bottom-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.813rem;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    .ai-page-home-link {
      color: var(--primary-cyan);
      text-decoration: none;
      font-weight: 600;
    }

    /* 悬浮客服挂件与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-cyan);
      color: var(--primary-cyan);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      cursor: pointer;
      font-weight: bold;
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary-cyan);
      color: #ffffff;
    }

    /* 响应式断点控制 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-pricing-grid,
      .testimonial-grid,
      .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .banner-strip-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 0;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-cyan);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-item a {
        padding: 12px 24px;
        width: 100%;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .card-grid-3,
      .card-grid-4,
      .case-gallery,
      .flow-steps,
      .token-pricing-grid,
      .testimonial-grid,
      .article-links-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        gap: 16px;
      }
      .banner-strip-wrap {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        align-items: flex-start;
      }
    }