:root {
      --primary: #4f46e5;
      --primary-gradient: linear-gradient(135deg, #ff416c 0%, #ff4b2b 25%, #f9d423 50%, #00b09b 75%, #4f46e5 100%);
      --rainbow-badge: linear-gradient(90deg, #ff5e62, #ff9966, #ffdb58, #38ef7d, #11998e, #00c6ff, #9b51e0);
      --bg-base: #f9faff;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border-light: #e2e8f0;
      --rainbow-border: linear-gradient(90deg, #f43f5e, #fb923c, #facc15, #4ade80, #38bdf8, #818cf8, #c084fc);
      --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
      --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: radial-gradient(circle at 10% 20%, rgba(254, 205, 211, 0.3) 0%, transparent 40%),
                  radial-gradient(circle at 90% 10%, rgba(186, 230, 253, 0.35) 0%, transparent 45%),
                  radial-gradient(circle at 50% 50%, rgba(221, 214, 254, 0.25) 0%, transparent 50%),
                  radial-gradient(circle at 80% 80%, rgba(254, 240, 138, 0.25) 0%, transparent 45%),
                  var(--bg-base);
      min-height: 100vh;
    }

    .ai-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: 999;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, #e11d48, #9333ea, #2563eb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.06);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-header-cta {
      background: linear-gradient(135deg, #f43f5e, #8b5cf6, #3b82f6);
      color: #ffffff !important;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
      display: inline-flex;
      align-items: center;
    }

    .btn-header-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(139, 92, 246, 0.4);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 彩虹修饰标签与通用标题 */
    .rainbow-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(226, 232, 240, 0.9);
      box-shadow: var(--shadow-sm);
      color: #6366f1;
      position: relative;
    }

    .rainbow-tag::before {
      content: '';
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--rainbow-badge);
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #0f172a;
      margin-top: 14px;
      letter-spacing: -0.5px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.6;
    }

    .rainbow-line {
      height: 4px;
      width: 60px;
      background: var(--rainbow-badge);
      margin: 14px auto 0;
      border-radius: var(--radius-pill);
    }

    section {
      padding: 70px 0;
      position: relative;
    }

    /* 首屏 Hero 区域 (无图片) */
    .hero-section {
      padding: 90px 0 70px;
      text-align: center;
      position: relative;
    }

    .hero-badge-wrap {
      display: flex;
      justify-content: center;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.7rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      max-width: 960px;
      margin: 0 auto 22px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: linear-gradient(135deg, #e11d48 0%, #f59e0b 25%, #10b981 50%, #06b6d4 75%, #6366f1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: #475569;
      max-width: 760px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-hero-primary {
      padding: 15px 36px;
      font-size: 1.08rem;
      font-weight: 700;
      color: #ffffff !important;
      background: linear-gradient(135deg, #f43f5e 0%, #ec4899 30%, #8b5cf6 70%, #3b82f6 100%);
      border-radius: var(--radius-pill);
      box-shadow: 0 10px 25px -5px rgba(236, 72, 153, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 14px 30px -5px rgba(236, 72, 153, 0.5);
    }

    .btn-hero-secondary {
      padding: 15px 32px;
      font-size: 1.05rem;
      font-weight: 600;
      color: #1e293b;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-pill);
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      border-color: #818cf8;
      color: var(--primary);
      transform: translateY(-2px);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1080px;
      margin: 0 auto;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(226, 232, 240, 0.8);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--rainbow-badge);
    }

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

    .stat-value {
      font-size: 2rem;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台矩阵与模型支持 */
    .models-bar {
      margin-top: 50px;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .models-bar-title {
      font-size: 0.92rem;
      font-weight: 700;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
      text-align: center;
    }

    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .model-pill {
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 12px;
      background: #f8fafc;
      color: #334155;
      border-radius: var(--radius-pill);
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: #eef2ff;
      color: var(--primary);
      border-color: #c7d2fe;
      transform: translateY(-1px);
    }

    /* 卡片通用 */
    .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;
    }

    .card-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 16px 28px rgba(99, 102, 241, 0.08);
      border-color: #c7d2fe;
    }

    .feature-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      background: linear-gradient(135deg, rgba(244,63,94,0.1), rgba(99,102,241,0.1));
      color: var(--primary);
    }

    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 14px;
    }

    .feature-mini-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: #f1f5f9;
      color: #475569;
    }

    /* 关于我们 与 平台介绍 */
    .about-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .about-content-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .about-text p {
      font-size: 1rem;
      color: #475569;
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .about-highlights {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .about-point {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }

    .about-point-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #f43f5e;
      margin-top: 8px;
      flex-shrink: 0;
    }

    .about-point span {
      font-size: 0.92rem;
      font-weight: 600;
      color: #1e293b;
    }

    .img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .img-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .img-box:hover img {
      transform: scale(1.02);
    }

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

    .flow-step {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 22px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--rainbow-badge);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }

    .flow-step h4 {
      font-size: 1.12rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .flow-step p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测板块 */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .review-score-hero {
      background: linear-gradient(135deg, rgba(244,63,94,0.06), rgba(99,102,241,0.08));
      padding: 36px 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #e2e8f0;
      flex-wrap: wrap;
      gap: 20px;
    }

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

    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
      color: #0f172a;
      background: linear-gradient(135deg, #f43f5e, #8b5cf6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .score-meta h4 {
      font-size: 1.35rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 4px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.15rem;
      letter-spacing: 2px;
    }

    .score-badge {
      background: #fef3c7;
      color: #92400e;
      padding: 4px 12px;
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: var(--radius-pill);
      margin-left: 8px;
    }

    .score-desc {
      font-size: 0.95rem;
      color: #475569;
      max-width: 500px;
      line-height: 1.6;
    }

    .table-container {
      overflow-x: auto;
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.94rem;
    }

    .comparison-table th, .comparison-table td {
      padding: 16px 24px;
      border-bottom: 1px solid #f1f5f9;
    }

    .comparison-table th {
      background: #f8fafc;
      color: #334155;
      font-weight: 700;
    }

    .comparison-table tr.highlight-row {
      background: rgba(238, 242, 255, 0.4);
    }

    .tag-check {
      color: #10b981;
      font-weight: 700;
    }

    .tag-cross {
      color: #94a3b8;
    }

    /* Token 比价板块 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .token-card.featured {
      border: 2px solid #818cf8;
      box-shadow: 0 10px 25px rgba(99, 102, 241, 0.12);
    }

    .token-card.featured::before {
      content: '特惠算力包';
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--rainbow-badge);
      color: #ffffff;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 2px 14px;
      border-radius: var(--radius-pill);
    }

    .token-card h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: #0f172a;
      margin-bottom: 14px;
    }

    .token-price span {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
    }

    .token-list {
      list-style: none;
      text-align: left;
      margin: 20px 0;
      font-size: 0.9rem;
      color: #475569;
    }

    .token-list li {
      padding: 6px 0;
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
    }

    .case-body {
      padding: 22px;
    }

    .case-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: #6366f1;
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .case-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

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

    .testimonial-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .testimonial-quote {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--rainbow-badge);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

    .author-info h5 {
      font-size: 0.96rem;
      font-weight: 700;
      color: #0f172a;
    }

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

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      transition: transform 0.3s ease;
    }

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

    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 0.94rem;
      color: #475569;
      line-height: 1.7;
    }

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

    .faq-item.active .faq-answer {
      max-height: 300px;
    }

    /* 表单与需求匹配 */
    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      padding: 44px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .form-info h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }

    .form-info p {
      font-size: 0.96rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .contact-badge-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.92rem;
      color: #334155;
    }

    .contact-item-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
    }

    .form-inner {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      outline: none;
      background: #ffffff;
      color: #1e293b;
      transition: border-color 0.2s ease;
      font-family: inherit;
    }

    .form-control:focus {
      border-color: #6366f1;
      box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
    }

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

    .btn-submit {
      background: linear-gradient(135deg, #f43f5e, #8b5cf6, #3b82f6);
      color: #ffffff;
      font-weight: 700;
      font-size: 1.05rem;
      padding: 14px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
      transition: all 0.3s ease;
      margin-top: 6px;
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
    }

    /* 加盟代理板块 */
    .agency-banner {
      background: linear-gradient(135deg, #eff6ff 0%, #faf5ff 50%, #fff1f2 100%);
      border: 1px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-sm);
    }

    .agency-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 30px;
    }

    .agency-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      text-align: center;
    }

    .agency-item h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .agency-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 文章列表 & 友情链接 */
    .articles-section {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      border-bottom: 1px solid #e2e8f0;
    }

    .article-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 20px;
    }

    .article-chip {
      padding: 8px 16px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      color: #475569;
      display: inline-block;
    }

    .article-chip:hover {
      border-color: #818cf8;
      color: var(--primary);
      background: #ffffff;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 50px 0 30px;
      color: #334155;
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-top: 14px;
      line-height: 1.7;
    }

    .footer-col h5 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col ul li a {
      font-size: 0.9rem;
      color: #64748b;
    }

    .footer-col ul li a:hover {
      color: var(--primary);
    }

    .qrcode-box {
      text-align: center;
      display: inline-block;
    }

    .qrcode-box img {
      width: 104px;
      height: 104px;
      display: block;
      margin: 0 auto 8px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      padding: 4px;
      background: #fff;
    }

    .qrcode-box span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .friendly-links-bar {
      padding-top: 24px;
      border-top: 1px solid #f1f5f9;
      margin-bottom: 24px;
    }

    .friendly-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: #475569;
      margin-bottom: 12px;
    }

    .friendly-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friendly-links-list a {
      font-size: 0.86rem;
      color: #64748b;
    }

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

    .footer-bottom {
      padding-top: 20px;
      border-top: 1px solid #f1f5f9;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.86rem;
      color: #94a3b8;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 悬浮客服挂件与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: 0 4px 14px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #334155;
      font-size: 1.1rem;
      cursor: pointer;
      transition: all 0.25s ease;
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    .float-qr-pop {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #e2e8f0;
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-qr-pop img {
      width: 100%;
      height: auto;
      border-radius: 6px;
    }

    .float-qr-pop span {
      font-size: 0.8rem;
      color: #64748b;
      margin-top: 6px;
      display: block;
    }

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

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .card-grid-4, .flow-grid, .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-grid-3, .token-grid, .case-grid, .testimonial-grid, .agency-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-content {
        grid-template-columns: 1fr 1fr;
      }
      .about-content-grid, .form-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid #e2e8f0;
        flex-direction: column;
        padding: 16px 20px;
        display: none;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid #f8fafc;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-desc {
        font-size: 1.02rem;
      }
      .card-grid-3, .card-grid-4, .card-grid-2, .hero-stats-grid, .flow-grid, .token-grid, .case-grid, .testimonial-grid, .agency-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-content {
        grid-template-columns: 1fr;
      }
      .review-score-hero {
        flex-direction: column;
        align-items: flex-start;
      }
      .form-wrapper {
        padding: 24px;
      }
    }