/* ===== 基础重置与变量 ===== */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --red-primary: #c8102e;
      --red-deep: #a00c24;
      --red-light: #e63946;
      --red-pale: #fff5f5;
      --red-glow: rgba(200, 16, 46, 0.12);
      --text-dark: #1a1a2e;
      --text-body: #2d2d44;
      --text-muted: #5a5a72;
      --bg-white: #ffffff;
      --bg-warm: #fef9f9;
      --bg-light: #f8f4f4;
      --border-light: #f0e6e6;
      --shadow-sm: 0 2px 8px rgba(200, 16, 46, 0.06);
      --shadow-md: 0 6px 24px rgba(200, 16, 46, 0.10);
      --shadow-lg: 0 12px 40px rgba(200, 16, 46, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1180px;
      --container-pad: 24px;
      --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: var(--font-system);
      background-color: var(--bg-warm);
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(200, 16, 46, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 60%, rgba(200, 16, 46, 0.04) 0%, transparent 45%);
      color: var(--text-body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }
    /* ===== 统一容器 ===== */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: var(--container-pad);
      padding-right: var(--container-pad);
    }

    /* ===== 顶部导航 ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      flex-shrink: 0;
    }
    .brand img {
      height: 38px;
      width: auto;
      display: block;
    }
    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: 0.5px;
    }
    .brand-text span {
      color: var(--red-primary);
      margin-left: 2px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      flex-wrap: wrap;
      justify-content: flex-end;
      flex: 1;
      margin-left: 12px;
    }
    .nav-links li a {
      display: inline-block;
      padding: 8px 10px;
      font-size: 0.9rem;
      color: var(--text-body);
      text-decoration: none;
      font-weight: 500;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .nav-links li a:hover {
      color: var(--red-primary);
      background: var(--red-pale);
    }
    .nav-cta {
      flex-shrink: 0;
      margin-left: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 22px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 50px;
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      white-space: nowrap;
      line-height: 1.4;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--red-primary), var(--red-deep));
      color: #fff;
      box-shadow: 0 4px 14px rgba(200, 16, 46, 0.3);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--red-deep), #8a0a1e);
      box-shadow: 0 6px 22px rgba(200, 16, 46, 0.45);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 8px rgba(200, 16, 46, 0.35);
    }
    .btn-outline {
      background: transparent;
      color: var(--red-primary);
      border: 2px solid var(--red-primary);
    }
    .btn-outline:hover {
      background: var(--red-pale);
      transform: translateY(-1px);
    }
    .btn-large {
      padding: 14px 32px;
      font-size: 1rem;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      color: var(--text-dark);
      flex-shrink: 0;
    }
    .menu-toggle svg {
      width: 28px;
      height: 28px;
      display: block;
    }

    /* ===== 首屏 Hero（无图片） ===== */
    .hero {
      position: relative;
      background: linear-gradient(150deg, #ffffff 0%, #fef6f6 40%, #fff0f0 70%, #ffffff 100%);
      padding: 60px 0 52px;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -120px;
      right: -120px;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(200, 16, 46, 0.07) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero::after {
      content: '';
      position: absolute;
      bottom: -100px;
      left: -80px;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(200, 16, 46, 0.05) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 28px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(200, 16, 46, 0.08);
      color: var(--red-primary);
      font-size: 0.85rem;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 50px;
      border: 1px solid rgba(200, 16, 46, 0.15);
      animation: fadeInUp 0.7s ease both;
    }
    .hero-badge svg {
      width: 16px;
      height: 16px;
    }
    .hero h1 {
      font-size: clamp(1.9rem, 4.2vw, 3rem);
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.25;
      max-width: 820px;
      animation: fadeInUp 0.7s 0.1s ease both;
    }
    .hero h1 .highlight {
      color: var(--red-primary);
      position: relative;
    }
    .hero h1 .highlight::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 2px;
      width: 100%;
      height: 8px;
      background: rgba(200, 16, 46, 0.15);
      border-radius: 4px;
      z-index: -1;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.8;
      animation: fadeInUp 0.7s 0.2s ease both;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      animation: fadeInUp 0.7s 0.3s ease both;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px 40px;
      margin-top: 8px;
      animation: fadeInUp 0.7s 0.4s ease both;
    }
    .hero-stat-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
    }
    .hero-stat-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--red-primary);
      line-height: 1.2;
    }
    .hero-stat-label {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* ===== 通用 Section ===== */
    .section {
      padding: 56px 0;
    }
    .section-alt {
      background: var(--bg-light);
    }
    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 40px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--red-primary);
      background: var(--red-pale);
      padding: 5px 14px;
      border-radius: 50px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-header h2 {
      font-size: clamp(1.5rem, 3vw, 2.1rem);
      font-weight: 700;
      color: var(--text-dark);
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-header p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* ===== 卡片通用 ===== */
    .card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 26px 22px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: all 0.35s ease;
    }
    .card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: rgba(200, 16, 46, 0.15);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--red-pale);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      color: var(--red-primary);
    }
    .card-icon svg {
      width: 22px;
      height: 22px;
    }
    .card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }
    .card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ===== 关于我们 ===== */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: start;
    }
    .about-text h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }
    .about-text p {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      line-height: 1.8;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 6px;
    }
    .about-highlight-item {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-body);
    }
    .about-highlight-item svg {
      width: 18px;
      height: 18px;
      color: var(--red-primary);
      flex-shrink: 0;
      margin-top: 3px;
    }
    .about-visual {
      background: linear-gradient(145deg, #fff5f5, #ffffff);
      border-radius: var(--radius-lg);
      padding: 28px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
    }
    .about-visual h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 16px;
    }
    .about-model-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .about-model-list span {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 500;
      color: var(--text-body);
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      padding: 5px 12px;
      border-radius: 50px;
      transition: all 0.2s;
    }
    .about-model-list span:hover {
      border-color: var(--red-primary);
      color: var(--red-primary);
      background: var(--red-pale);
    }

    /* ===== 服务能力卡片 ===== */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    /* ===== 流程步骤 ===== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      counter-reset: step;
    }
    .step-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: all 0.35s ease;
      position: relative;
    }
    .step-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--red-primary), var(--red-deep));
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .step-card h3 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
    }
    .step-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* ===== 对比评测 ===== */
    .compare-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
      background: var(--bg-white);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.9rem;
    }
    .compare-table th,
    .compare-table td {
      padding: 14px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border-light);
      vertical-align: middle;
    }
    .compare-table thead th {
      background: linear-gradient(135deg, #fef6f6, #fff0f0);
      color: var(--text-dark);
      font-weight: 700;
      font-size: 0.88rem;
      white-space: nowrap;
    }
    .compare-table tbody tr:last-child td {
      border-bottom: none;
    }
    .compare-table tbody tr {
      transition: background 0.2s;
    }
    .compare-table tbody tr:hover {
      background: var(--red-pale);
    }
    .compare-table .rating-cell {
      text-align: center;
      font-weight: 700;
    }
    .rating-score {
      color: var(--red-primary);
      font-size: 1.1rem;
    }
    .rating-stars {
      color: #f5a623;
      letter-spacing: 1px;
      font-size: 0.95rem;
    }
    .compare-highlight {
      background: linear-gradient(135deg, #fff5f5, #ffffff);
    }
    .compare-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 600;
      color: #fff;
      background: var(--red-primary);
      padding: 2px 8px;
      border-radius: 50px;
      margin-left: 6px;
      vertical-align: middle;
    }

    /* ===== 案例展示 ===== */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .case-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--bg-light);
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.45s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }
    .case-body {
      padding: 20px 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .case-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-dark);
    }
    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .case-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 4px;
    }
    .case-tags span {
      font-size: 0.75rem;
      color: var(--red-primary);
      background: var(--red-pale);
      padding: 3px 10px;
      border-radius: 50px;
    }
    .case-single {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: center;
      margin-top: 24px;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      padding: 24px;
    }
    .case-single .case-img-wrap {
      border-radius: var(--radius-sm);
      aspect-ratio: 1 / 1;
    }
    .case-single .case-body {
      padding: 0;
    }

    /* ===== Token比价 ===== */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .token-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: all 0.35s ease;
    }
    .token-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .token-card h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 6px;
    }
    .token-price {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--red-primary);
      line-height: 1.2;
    }
    .token-price small {
      font-size: 0.8rem;
      font-weight: 500;
      color: var(--text-muted);
    }
    .token-card .token-note {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-top: 6px;
    }

    /* ===== 客户评论 ===== */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 24px 22px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .review-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .review-stars {
      color: #f5a623;
      font-size: 0.9rem;
      letter-spacing: 2px;
    }
    .review-text {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.75;
      flex: 1;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-top: 10px;
      border-top: 1px solid var(--border-light);
    }
    .review-avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--red-pale), #ffe0e0);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--red-primary);
      flex-shrink: 0;
    }
    .review-meta {
      display: flex;
      flex-direction: column;
      gap: 1px;
    }
    .review-name {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-dark);
    }
    .review-role {
      font-size: 0.76rem;
      color: var(--text-muted);
    }

    /* ===== FAQ ===== */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: box-shadow 0.25s;
    }
    .faq-item:hover {
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      width: 100%;
      background: none;
      border: none;
      padding: 16px 20px;
      text-align: left;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      font-family: inherit;
      transition: color 0.2s;
    }
    .faq-question:hover {
      color: var(--red-primary);
    }
    .faq-question .faq-icon {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--red-primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 20px;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px;
    }
    .faq-answer p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* ===== 文章列表 ===== */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }
    .article-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px 18px;
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-body);
      font-size: 0.9rem;
      font-weight: 500;
      transition: all 0.25s;
    }
    .article-link:hover {
      border-color: var(--red-primary);
      color: var(--red-primary);
      background: var(--red-pale);
      transform: translateX(3px);
    }
    .article-link svg {
      width: 18px;
      height: 18px;
      color: var(--red-primary);
      flex-shrink: 0;
    }

    /* ===== 表单 ===== */
    .form-wrap {
      max-width: 720px;
      margin: 0 auto;
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-md);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full-width {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-dark);
    }
    .form-group label .required {
      color: var(--red-primary);
      margin-left: 2px;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.9rem;
      font-family: inherit;
      color: var(--text-dark);
      background: var(--bg-warm);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.25s, box-shadow 0.25s;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--red-primary);
      box-shadow: 0 0 0 3px var(--red-glow);
      background: #fff;
    }
    .form-group textarea {
      resize: vertical;
      min-height: 96px;
    }
    .form-group select {
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a5a72' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 12px center;
      padding-right: 36px;
    }
    .form-submit {
      grid-column: 1 / -1;
      margin-top: 4px;
    }
    .form-submit .btn {
      width: 100%;
      padding: 13px 24px;
      font-size: 1rem;
    }

    /* ===== 联系我们信息 ===== */
    .contact-info-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 36px;
    }
    .contact-info-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
    }
    .contact-info-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .contact-info-card .ci-icon {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--red-pale);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 10px;
      color: var(--red-primary);
    }
    .contact-info-card .ci-icon svg {
      width: 20px;
      height: 20px;
    }
    .contact-info-card h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 4px;
    }
    .contact-info-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      word-break: break-all;
    }
    .qr-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      margin-top: 8px;
    }
    .qr-wrap img {
      width: 110px;
      height: 110px;
      object-fit: contain;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      background: #fff;
    }

    /* ===== 友情链接 ===== */
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 20px;
      justify-content: center;
      align-items: center;
    }
    .friend-links a {
      font-size: 0.85rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
    }
    .friend-links a:hover {
      color: var(--red-primary);
      text-decoration: underline;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #1a1a2e;
      color: #d0d0e0;
      padding: 42px 0 24px;
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 28px;
    }
    .footer-brand h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: #a8a8c0;
      line-height: 1.75;
      margin-bottom: 12px;
    }
    .footer-brand .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 4px;
      font-size: 0.85rem;
      color: #a8a8c0;
    }
    .footer-brand .footer-contact a {
      color: #e0e0f0;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-brand .footer-contact a:hover {
      color: var(--red-light);
    }
    .footer-col h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 7px;
    }
    .footer-col ul li a {
      font-size: 0.85rem;
      color: #a8a8c0;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-col ul li a:hover {
      color: var(--red-light);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 18px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      font-size: 0.8rem;
      color: #8888a0;
    }
    .footer-bottom a {
      color: #b0b0c8;
      text-decoration: none;
    }
    .footer-bottom a:hover {
      color: var(--red-light);
    }

    /* ===== 浮动客服 & 返回顶部 ===== */
    .float-actions {
      position: fixed;
      right: 18px;
      bottom: 28px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      border: none;
      background: var(--bg-white);
      color: var(--red-primary);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      text-decoration: none;
    }
    .float-btn:hover {
      background: var(--red-primary);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
    }
    .float-btn svg {
      width: 22px;
      height: 22px;
    }
    .back-to-top {
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }
    .back-to-top.visible {
      opacity: 1;
      visibility: visible;
    }

    /* ===== 动画 ===== */
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(24px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 10px 16px 16px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
        gap: 0;
        margin-left: 0;
        align-items: stretch;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        padding: 10px 12px;
        font-size: 0.92rem;
      }
      .menu-toggle {
        display: block;
      }
      .nav-cta {
        display: none;
      }
      .nav-wrap {
        position: relative;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .steps-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .case-single {
        grid-template-columns: 1fr;
      }
      .contact-info-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .about-highlights {
        grid-template-columns: 1fr;
      }
      .hero {
        padding: 44px 0 40px;
      }
      .section {
        padding: 44px 0;
      }
      .compare-table th,
      .compare-table td {
        padding: 12px 14px;
        font-size: 0.84rem;
      }
      .compare-wrap {
        overflow-x: auto;
      }
      .compare-table {
        min-width: 600px;
      }
      .hero-stats {
        gap: 10px 24px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }
    @media (max-width: 480px) {
      :root {
        --container-pad: 16px;
      }
      .hero-actions {
        flex-direction: column;
        width: 100%;
      }
      .hero-actions .btn {
        width: 100%;
      }
      .brand-text {
        font-size: 1.05rem;
      }
      .form-wrap {
        padding: 22px 16px;
      }
    }