* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
      background: #f8f7f2;
      color: #1e1e1e;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 多彩涂鸦风背景 */
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      background: radial-gradient(circle at 10% 20%, rgba(255, 225, 140, 0.3) 0%, transparent 40%),
                  radial-gradient(circle at 90% 30%, rgba(140, 200, 255, 0.25) 0%, transparent 45%),
                  radial-gradient(circle at 30% 80%, rgba(255, 160, 180, 0.2) 0%, transparent 50%),
                  radial-gradient(circle at 80% 90%, rgba(160, 240, 200, 0.2) 0%, transparent 45%);
      pointer-events: none;
    }
    /* 导航 */
    .header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(248, 247, 242, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
      gap: 16px;
      flex-wrap: wrap;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.25rem;
      color: #1e2b3c;
    }
    .ai-page-logo {
      width: 40px;
      height: 40px;
      object-fit: contain;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      flex-wrap: wrap;
    }
    .nav-links li a {
      display: block;
      padding: 8px 10px;
      font-size: 0.9rem;
      color: #2e3b4e;
      border-radius: 8px;
      transition: background 0.2s, color 0.2s;
      white-space: nowrap;
    }
    .nav-links li a:hover {
      background: #e8e6df;
      color: #0a1a2e;
    }
    .nav-cta {
      display: inline-block;
      background: #1e2b3c;
      color: #fff;
      padding: 10px 22px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 0.9rem;
      transition: background 0.25s, transform 0.25s;
      border: none;
      cursor: pointer;
    }
    .nav-cta:hover {
      background: #0f1a28;
      transform: translateY(-2px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid #ccc;
      border-radius: 8px;
      padding: 8px 12px;
      font-size: 1.2rem;
      cursor: pointer;
      color: #1e2b3c;
    }
    /* Hero 首屏 无图片 */
    .hero {
      padding: 60px 0 40px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: start;
    }
    .hero-content {
      max-width: 680px;
    }
    .hero-badge {
      display: inline-block;
      background: linear-gradient(135deg, #ffe7a0, #ffd966);
      color: #3d2e00;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 24px;
      letter-spacing: 0.3px;
      box-shadow: 0 4px 12px rgba(255, 200, 0, 0.2);
    }
    .hero h1 {
      font-size: 3.2rem;
      line-height: 1.2;
      font-weight: 800;
      color: #0f1a28;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero h1 .highlight {
      background: linear-gradient(120deg, #ffcf40, #ffb347);
      padding: 0 8px;
      border-radius: 8px;
      display: inline-block;
      color: #1e1e1e;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: #3a4a5e;
      margin-bottom: 32px;
      max-width: 580px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-primary {
      display: inline-block;
      background: #1e2b3c;
      color: #fff;
      padding: 16px 36px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1.05rem;
      transition: all 0.3s ease;
      box-shadow: 0 8px 24px rgba(30, 43, 60, 0.2);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: #0f1a28;
      transform: translateY(-3px);
      box-shadow: 0 12px 32px rgba(30, 43, 60, 0.3);
    }
    .btn-outline {
      display: inline-block;
      background: transparent;
      color: #1e2b3c;
      padding: 15px 34px;
      border-radius: 50px;
      font-weight: 600;
      font-size: 1rem;
      border: 2px solid #1e2b3c;
      transition: all 0.3s ease;
    }
    .btn-outline:hover {
      background: #1e2b3c;
      color: #fff;
      transform: translateY(-3px);
    }
    .hero-visual {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 10px;
    }
    .visual-card {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(10px);
      border-radius: 24px;
      padding: 24px 20px;
      border: 1px solid rgba(255, 255, 255, 0.5);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .visual-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    }
    .visual-card .num {
      font-size: 2rem;
      font-weight: 800;
      color: #1e2b3c;
      line-height: 1.2;
    }
    .visual-card .label {
      font-size: 0.9rem;
      color: #5e6b7e;
      margin-top: 4px;
    }
    .visual-card.gradient-a {
      background: linear-gradient(135deg, #fff3d6, #ffe9b3);
    }
    .visual-card.gradient-b {
      background: linear-gradient(135deg, #d6f0ff, #b8e2ff);
    }
    .visual-card.gradient-c {
      background: linear-gradient(135deg, #ffe0e8, #ffc9d6);
    }
    /* 通用区块 */
    .section {
      padding: 72px 0;
    }
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 600;
      color: #5e6b7e;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 12px;
      background: rgba(255, 255, 255, 0.6);
      padding: 4px 16px;
      border-radius: 20px;
      border: 1px solid rgba(0, 0, 0, 0.05);
    }
    .section-title {
      font-size: 2.4rem;
      font-weight: 700;
      color: #0f1a28;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-sub {
      font-size: 1.05rem;
      color: #4a5a6e;
      max-width: 680px;
      margin: 0 auto;
    }
    /* 数据指标 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-item {
      background: #fff;
      border-radius: 24px;
      padding: 32px 24px;
      text-align: center;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .stat-item:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    }
    .stat-number {
      font-size: 2.6rem;
      font-weight: 800;
      color: #1e2b3c;
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.95rem;
      color: #5e6b7e;
      margin-top: 8px;
    }
    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #fff;
      border-radius: 24px;
      padding: 36px 28px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .service-card::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #ffd966, #ffb347);
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 48px rgba(0, 0, 0, 0.08);
    }
    .service-card:hover::after {
      opacity: 1;
    }
    .service-icon {
      font-size: 2.4rem;
      margin-bottom: 20px;
      display: block;
    }
    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 0.95rem;
      color: #4a5a6e;
      line-height: 1.7;
    }
    /* 平台介绍 */
    .platform-intro {
      background: #fff;
      border-radius: 32px;
      padding: 56px 48px;
      box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.03);
    }
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }
    .intro-text h2 {
      font-size: 2rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 20px;
      line-height: 1.3;
    }
    .intro-text p {
      font-size: 1rem;
      color: #4a5a6e;
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .intro-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }
    .intro-tags span {
      background: #f0f0ea;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 0.85rem;
      color: #3d4d5e;
      font-weight: 500;
    }
    .intro-points {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .intro-point {
      background: #f8f7f2;
      border-radius: 16px;
      padding: 20px;
      transition: background 0.2s;
    }
    .intro-point:hover {
      background: #f0efe8;
    }
    .intro-point strong {
      display: block;
      font-size: 0.95rem;
      color: #0f1a28;
      margin-bottom: 4px;
    }
    .intro-point span {
      font-size: 0.85rem;
      color: #5e6b7e;
    }
    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      counter-reset: step;
    }
    .step-item {
      background: #fff;
      border-radius: 24px;
      padding: 32px 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      position: relative;
      counter-increment: step;
      transition: transform 0.3s;
    }
    .step-item:hover {
      transform: translateY(-4px);
    }
    .step-item::before {
      content: "0" counter(step);
      display: block;
      font-size: 2rem;
      font-weight: 800;
      color: #ffd966;
      margin-bottom: 16px;
      line-height: 1;
    }
    .step-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 10px;
    }
    .step-item p {
      font-size: 0.9rem;
      color: #5e6b7e;
      line-height: 1.6;
    }
    /* 对比评测 */
    .compare-wrap {
      background: #fff;
      border-radius: 32px;
      padding: 48px;
      box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.03);
    }
    .compare-score {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      padding-bottom: 32px;
      margin-bottom: 32px;
      border-bottom: 1px solid #eee;
    }
    .score-big {
      font-size: 4rem;
      font-weight: 800;
      color: #1e2b3c;
      line-height: 1;
    }
    .score-big span {
      font-size: 1.5rem;
      font-weight: 400;
      color: #8a9aa8;
    }
    .stars {
      color: #ffb347;
      font-size: 1.6rem;
      letter-spacing: 4px;
    }
    .compare-table-wrap {
      overflow-x: auto;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.95rem;
      min-width: 640px;
    }
    th {
      text-align: left;
      padding: 16px 18px;
      background: #f8f7f2;
      color: #0f1a28;
      font-weight: 700;
      border-bottom: 2px solid #e0ddd6;
    }
    td {
      padding: 14px 18px;
      border-bottom: 1px solid #eee;
      color: #3a4a5e;
      vertical-align: top;
    }
    tr:last-child td {
      border-bottom: none;
    }
    .tag-good {
      display: inline-block;
      background: #d4f0d4;
      color: #1d6b1d;
      padding: 2px 12px;
      border-radius: 12px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #fff;
      border-radius: 20px;
      padding: 0 28px;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: box-shadow 0.3s;
    }
    .faq-item:hover {
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    }
    .faq-question {
      padding: 22px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      font-size: 1.05rem;
      color: #0f1a28;
      gap: 16px;
      user-select: none;
    }
    .faq-question .arrow {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      flex-shrink: 0;
      color: #8a9aa8;
    }
    .faq-item.active .faq-question .arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      color: #4a5a6e;
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-bottom: 22px;
    }
    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #fff;
      border-radius: 24px;
      padding: 28px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    }
    .review-stars {
      color: #ffb347;
      font-size: 1rem;
      letter-spacing: 2px;
    }
    .review-text {
      font-size: 0.95rem;
      color: #3a4a5e;
      line-height: 1.7;
      flex: 1;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 12px;
      border-top: 1px solid #eee;
    }
    .avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ffe7a0, #ffd966);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #3d2e00;
      font-size: 1rem;
      flex-shrink: 0;
    }
    .review-name {
      font-weight: 600;
      font-size: 0.95rem;
      color: #0f1a28;
    }
    .review-role {
      font-size: 0.8rem;
      color: #8a9aa8;
    }
    /* 案例展示 & 文章 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .media-card {
      background: #fff;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .media-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    }
    .media-img {
      width: 100%;
      aspect-ratio: 16 / 10;
      background: #f0efe8;
      overflow: hidden;
    }
    .media-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-img img {
      transform: scale(1.04);
    }
    .media-body {
      padding: 20px 24px 24px;
    }
    .media-body h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 8px;
    }
    .media-body p {
      font-size: 0.9rem;
      color: #5e6b7e;
      line-height: 1.6;
    }
    /* 表单 */
    .form-section {
      background: #fff;
      border-radius: 32px;
      padding: 52px 48px;
      box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.03);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full-width {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
      color: #1e2b3c;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 14px 18px;
      border-radius: 12px;
      border: 1px solid #ddd;
      background: #f8f7f2;
      font-size: 0.95rem;
      color: #1e1e1e;
      transition: border-color 0.2s, box-shadow 0.2s;
      font-family: inherit;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: #ffd966;
      box-shadow: 0 0 0 3px rgba(255, 217, 102, 0.25);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 120px;
    }
    .form-submit {
      display: inline-block;
      background: #1e2b3c;
      color: #fff;
      padding: 16px 48px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      margin-top: 8px;
    }
    .form-submit:hover {
      background: #0f1a28;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(30, 43, 60, 0.25);
    }
    /* Token 比价 & 标签云 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .token-card {
      background: #fff;
      border-radius: 20px;
      padding: 28px 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: transform 0.3s;
    }
    .token-card:hover {
      transform: translateY(-4px);
    }
    .token-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 8px;
    }
    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: #1e2b3c;
      margin: 12px 0 4px;
    }
    .token-price small {
      font-size: 0.85rem;
      font-weight: 400;
      color: #8a9aa8;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      max-width: 900px;
      margin: 32px auto 0;
    }
    .tag-cloud span {
      background: #fff;
      padding: 8px 20px;
      border-radius: 30px;
      font-size: 0.9rem;
      color: #3d4d5e;
      border: 1px solid rgba(0, 0, 0, 0.06);
      transition: all 0.2s;
      cursor: default;
    }
    .tag-cloud span:hover {
      background: #ffe7a0;
      border-color: #ffd966;
      transform: translateY(-2px);
    }
    /* 服务网络 */
    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .network-item {
      background: #fff;
      border-radius: 20px;
      padding: 28px 20px;
      text-align: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: transform 0.3s;
    }
    .network-item:hover {
      transform: translateY(-4px);
    }
    .network-item .city {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 6px;
    }
    .network-item .desc {
      font-size: 0.85rem;
      color: #8a9aa8;
    }
    /* 文章列表 */
    .article-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .article-item {
      background: #fff;
      border-radius: 16px;
      padding: 20px 24px;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: all 0.25s;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .article-item:hover {
      background: #faf9f4;
      transform: translateX(4px);
    }
    .article-item a {
      font-size: 0.95rem;
      font-weight: 500;
      color: #1e2b3c;
      transition: color 0.2s;
    }
    .article-item a:hover {
      color: #b8860b;
    }
    /* 加盟代理 & 联系我们 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .contact-card {
      background: #fff;
      border-radius: 24px;
      padding: 36px 32px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
      border: 1px solid rgba(0, 0, 0, 0.04);
    }
    .contact-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: #0f1a28;
      margin-bottom: 20px;
    }
    .contact-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 0.95rem;
      color: #3a4a5e;
    }
    .contact-row .icon {
      font-size: 1.2rem;
      flex-shrink: 0;
      width: 28px;
      text-align: center;
    }
    .qrcode-box {
      margin-top: 20px;
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .qrcode-box img {
      width: 120px;
      height: 120px;
      object-fit: cover;
      border-radius: 12px;
      border: 1px solid #eee;
    }
    .qrcode-box .qr-text {
      font-size: 0.9rem;
      color: #5e6b7e;
    }
    /* footer */
    .footer {
      background: #1e2b3c;
      color: #d0d8e3;
      padding: 48px 0 32px;
      margin-top: 40px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      align-items: start;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.15rem;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-brand img {
      width: 36px;
      height: 36px;
      object-fit: contain;
    }
    .footer-desc {
      font-size: 0.9rem;
      line-height: 1.7;
      color: #a0b0c2;
      margin-bottom: 16px;
    }
    .footer h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: 0.3px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 0.9rem;
      color: #a0b0c2;
      transition: color 0.2s;
    }
    .footer-links a:hover {
      color: #ffd966;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #8a9aa8;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links a {
      color: #a0b0c2;
      font-size: 0.85rem;
      transition: color 0.2s;
    }
    .friend-links a:hover {
      color: #ffd966;
    }
    /* 浮动客服 */
    .float-kefu {
      position: fixed;
      bottom: 32px;
      right: 32px;
      z-index: 999;
    }
    .kefu-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: #1e2b3c;
      color: #fff;
      border: none;
      cursor: pointer;
      font-size: 1.4rem;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 24px rgba(30, 43, 60, 0.3);
      transition: all 0.3s ease;
    }
    .kefu-btn:hover {
      background: #0f1a28;
      transform: scale(1.06);
    }
    .kefu-popup {
      position: absolute;
      bottom: 70px;
      right: 0;
      background: #fff;
      border-radius: 20px;
      padding: 24px;
      box-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
      width: 220px;
      display: none;
      flex-direction: column;
      gap: 12px;
      text-align: center;
      border: 1px solid rgba(0, 0, 0, 0.05);
    }
    .kefu-popup.show {
      display: flex;
    }
    .kefu-popup img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      border-radius: 12px;
      margin: 0 auto;
      border: 1px solid #eee;
    }
    .kefu-popup p {
      font-size: 0.85rem;
      color: #3a4a5e;
    }
    .back-to-top {
      position: fixed;
      bottom: 100px;
      right: 32px;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #fff;
      color: #1e2b3c;
      border: 1px solid #ddd;
      cursor: pointer;
      display: none;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
      transition: all 0.3s ease;
      font-size: 1.2rem;
      z-index: 998;
    }
    .back-to-top.show {
      display: flex;
    }
    .back-to-top:hover {
      background: #ffd966;
      border-color: #ffd966;
    }
    /* 滚动入场动画 */
    .fade-up {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* 响应式 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero h1 {
        font-size: 2.6rem;
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .network-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .media-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        padding: 12px 0;
        gap: 4px;
      }
      .nav-links.open {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .nav-wrap {
        flex-wrap: wrap;
      }
      .hero h1 {
        font-size: 2rem;
      }
      .hero {
        padding: 40px 0 24px;
      }
      .section {
        padding: 48px 0;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .services-grid,
      .reviews-grid,
      .media-grid,
      .token-grid,
      .network-grid,
      .form-grid,
      .article-list {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
      }
      .compare-wrap,
      .form-section {
        padding: 28px 20px;
      }
      .platform-intro {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .float-kefu {
        bottom: 20px;
        right: 20px;
      }
      .back-to-top {
        bottom: 86px;
        right: 20px;
      }
      .score-big {
        font-size: 3rem;
      }
      .intro-points {
        grid-template-columns: 1fr;
      }
      .qrcode-box {
        justify-content: center;
      }
    }
    @media (max-width: 480px) {
      .hero h1 {
        font-size: 1.7rem;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .btn-primary,
      .btn-outline {
        width: 100%;
        text-align: center;
      }
      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }
    }