:root {
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --neon-cyan: #00d2ff;
      --neon-purple: #7928ca;
      --neon-pink: #ff007a;
      --neon-amber: #ff9900;
      --border-light: rgba(121, 40, 202, 0.12);
      --neon-glow: 0 0 20px rgba(0, 210, 255, 0.25);
      --card-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 0 1px rgba(0, 210, 255, 0.2);
      --container-max: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 210, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 0, 122, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(121, 40, 202, 0.03) 0%, transparent 60%);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    .container {
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }

    /* 顶部导航 */
    .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(0, 210, 255, 0.2);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

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

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .logo-box {
      height: 44px;
      display: flex;
      align-items: center;
    }

    .logo-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, #0f172a, #7928ca);
      -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-item a, .ai-page-home-link {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      text-decoration: none;
      border-radius: 6px;
      transition: all 0.25s ease;
      position: relative;
    }

    .nav-item a:hover, .ai-page-home-link:hover {
      color: var(--neon-purple);
      background: rgba(121, 40, 202, 0.06);
    }

    .nav-cta-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #7928ca, #ff007a);
      border-radius: 99px;
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(255, 0, 122, 0.3);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid rgba(255, 255, 255, 0.4);
    }

    .btn-portal:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 8px 25px rgba(255, 0, 122, 0.45);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid #cbd5e1;
      padding: 8px 12px;
      border-radius: 8px;
      font-size: 1rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 模块通用样式 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

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

    .section-badge {
      display: inline-block;
      padding: 5px 14px;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      border-radius: 20px;
      background: rgba(0, 210, 255, 0.12);
      color: #0284c7;
      border: 1px solid rgba(0, 210, 255, 0.4);
      margin-bottom: 14px;
      box-shadow: 0 0 10px rgba(0, 210, 255, 0.15);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 HERO (无图片) */
    .hero-section {
      padding: 90px 0 80px 0;
      background: linear-gradient(180deg, rgba(248, 250, 252, 0.5) 0%, rgba(241, 245, 249, 0.8) 100%);
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(0, 210, 255, 0.15);
    }

    .hero-glow-1 {
      position: absolute;
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 380px;
      background: radial-gradient(ellipse, rgba(0, 210, 255, 0.18) 0%, rgba(121, 40, 202, 0.12) 50%, transparent 70%);
      pointer-events: none;
      filter: blur(40px);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      border-radius: 99px;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(0, 210, 255, 0.5);
      box-shadow: 0 4px 15px rgba(0, 210, 255, 0.2);
      font-size: 0.88rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 24px;
    }

    .hero-tag-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #00d2ff;
      box-shadow: 0 0 8px #00d2ff;
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #0284c7 0%, #7928ca 50%, #ff007a 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 0 0 20px rgba(0, 210, 255, 0.2);
    }

    .hero-sub {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 36px;
      font-size: 1.1rem;
      font-weight: 800;
      color: #ffffff;
      background: linear-gradient(135deg, #00d2ff 0%, #7928ca 50%, #ff007a 100%);
      border-radius: 99px;
      text-decoration: none;
      box-shadow: 0 10px 30px rgba(121, 40, 202, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.6);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid rgba(255, 255, 255, 0.5);
    }

    .btn-hero-main:hover {
      transform: translateY(-3px) scale(1.03);
      box-shadow: 0 15px 35px rgba(255, 0, 122, 0.5);
    }

    .btn-hero-sub {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 15px 30px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      background: #ffffff;
      border-radius: 99px;
      text-decoration: none;
      border: 1px solid #cbd5e1;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
      transition: all 0.25s ease;
    }

    .btn-hero-sub:hover {
      border-color: var(--neon-cyan);
      box-shadow: 0 4px 20px rgba(0, 210, 255, 0.25);
      color: #0284c7;
    }

    /* 首屏数据指标卡片 (纯CSS/文字) */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(8px);
      padding: 20px 14px;
      border-radius: 14px;
      border: 1px solid rgba(0, 210, 255, 0.2);
      box-shadow: var(--card-shadow);
      text-align: center;
      transition: transform 0.3s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--neon-purple);
    }

    .metric-value {
      font-size: 1.85rem;
      font-weight: 900;
      color: #0f172a;
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .metric-value.highlight {
      background: linear-gradient(135deg, #0284c7, #7928ca);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-sub);
      font-weight: 600;
    }

    /* 平台介绍 & 模型聚合 */
    .platform-box {
      background: #ffffff;
      border-radius: 20px;
      border: 1px solid rgba(121, 40, 202, 0.15);
      box-shadow: var(--card-shadow);
      padding: 40px;
      margin-bottom: 40px;
    }

    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-tag-item {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #1e293b;
      transition: all 0.2s ease;
    }

    .model-tag-item:hover {
      border-color: var(--neon-cyan);
      background: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 210, 255, 0.15);
      color: #0284c7;
    }

    /* 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      padding: 28px 24px;
      box-shadow: var(--card-shadow);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #00d2ff, #7928ca, #ff007a);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-6px);
      border-color: rgba(121, 40, 202, 0.3);
      box-shadow: 0 16px 36px -10px rgba(121, 40, 202, 0.15);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      background: #f1f5f9;
      color: #475569;
      margin-bottom: 14px;
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .service-points {
      list-style: none;
      padding: 0;
      margin-bottom: 20px;
    }

    .service-points li {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-points li::before {
      content: "✓";
      color: #0284c7;
      font-weight: 900;
    }

    /* 案例展示与图片展示 */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 30px;
    }

    .media-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
    }

    .media-img-holder {
      width: 100%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

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

    .media-card:hover .media-img-holder img {
      transform: scale(1.03);
    }

    .media-info {
      padding: 20px;
    }

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

    .media-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 宣传图画廊 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .banner-item {
      background: #ffffff;
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--card-shadow);
    }

    /* 流程与行业步骤 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .step-card {
      background: #ffffff;
      border-radius: 14px;
      border: 1px solid #e2e8f0;
      padding: 24px 20px;
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .step-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      box-shadow: 0 4px 10px rgba(0, 210, 255, 0.3);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 对比评测板块 */
    .eval-card {
      background: #ffffff;
      border-radius: 20px;
      border: 2px solid rgba(0, 210, 255, 0.3);
      box-shadow: 0 10px 40px -10px rgba(0, 210, 255, 0.2);
      padding: 36px;
      margin-bottom: 40px;
    }

    .eval-badge-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      padding-bottom: 24px;
      border-bottom: 1px solid #f1f5f9;
      margin-bottom: 24px;
    }

    .score-badge {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #f8fafc;
      padding: 10px 20px;
      border-radius: 12px;
      border: 1px solid #e2e8f0;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

    .score-num {
      font-size: 1.6rem;
      font-weight: 900;
      color: #0f172a;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .eval-table th, .eval-table td {
      padding: 16px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.95rem;
    }

    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #1e293b;
    }

    .eval-table tr:hover td {
      background: rgba(0, 210, 255, 0.02);
    }

    .td-highlight {
      color: #0284c7;
      font-weight: 700;
    }

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

    .review-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      padding: 24px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.25s ease;
    }

    .review-card:hover {
      transform: translateY(-4px);
      border-color: var(--neon-purple);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .review-user-name {
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-main);
    }

    .review-user-role {
      font-size: 0.82rem;
      color: var(--text-sub);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Token 比价卡片 */
    .pricing-table-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 30px;
    }

    .pricing-card {
      background: #ffffff;
      border-radius: 18px;
      border: 1px solid #e2e8f0;
      padding: 32px 24px;
      box-shadow: var(--card-shadow);
      text-align: center;
      position: relative;
      transition: all 0.3s ease;
    }

    .pricing-card.featured {
      border: 2px solid var(--neon-purple);
      box-shadow: 0 10px 30px rgba(121, 40, 202, 0.15);
    }

    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, #7928ca, #ff007a);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 14px;
      border-radius: 99px;
    }

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

    .pricing-rate {
      font-size: 2.2rem;
      font-weight: 900;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .pricing-rate small {
      font-size: 0.9rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    .pricing-features {
      list-style: none;
      padding: 0;
      margin: 20px 0;
      text-align: left;
    }

    .pricing-features li {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pricing-features li::before {
      content: "•";
      color: var(--neon-cyan);
      font-size: 1.4rem;
      line-height: 1;
    }

    /* 需求匹配与表单 */
    .form-wrap {
      background: #ffffff;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      padding: 40px;
      box-shadow: var(--card-shadow);
      max-width: 800px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-bottom: 18px;
    }

    .form-col-full {
      grid-column: span 2;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      padding: 12px 16px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      background: #f8fafc;
      color: var(--text-main);
      width: 100%;
    }

    .form-control:focus {
      border-color: var(--neon-cyan);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.2);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .form-btn-submit {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, #00d2ff, #7928ca);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.05rem;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 6px 20px rgba(0, 210, 255, 0.3);
      transition: all 0.25s ease;
    }

    .form-btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(121, 40, 202, 0.4);
    }

    /* FAQ 手风琴 (不少于10条) */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 12px;
      border: 1px solid #e2e8f0;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 20px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: #64748b;
      transition: transform 0.25s ease;
    }

    .faq-item.active {
      border-color: rgba(0, 210, 255, 0.5);
      box-shadow: 0 4px 15px rgba(0, 210, 255, 0.08);
    }

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

    .faq-answer {
      display: none;
      padding: 0 20px 20px 20px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 资讯与文章列表 */
    .articles-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }

    .article-link-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 20px;
      background: #ffffff;
      border-radius: 12px;
      border: 1px solid #e2e8f0;
      text-decoration: none;
      color: var(--text-main);
      box-shadow: var(--card-shadow);
      transition: all 0.25s ease;
    }

    .article-link-card:hover {
      border-color: var(--neon-cyan);
      transform: translateX(4px);
      color: #0284c7;
    }

    /* 联系我们与二维码 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 30px;
      align-items: center;
      background: #ffffff;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      padding: 40px;
      box-shadow: var(--card-shadow);
    }

    .contact-qr-box {
      text-align: center;
      padding: 24px;
      background: #f8fafc;
      border-radius: 16px;
      border: 1px dashed #cbd5e1;
    }

    .contact-qr-img {
      max-width: 180px;
      height: auto;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.06);
      margin-bottom: 12px;
      display: inline-block;
    }

    .contact-info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-info-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
    }

    .contact-label {
      font-weight: 700;
      color: var(--text-main);
      min-width: 90px;
    }

    .contact-val {
      color: var(--text-muted);
    }

    /* 页脚容器与友情链接 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px 0;
      border-top: 3px solid #7928ca;
    }

    .footer-links-section {
      padding-bottom: 30px;
      margin-bottom: 25px;
      border-bottom: 1px solid #1e293b;
    }

    .footer-links-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .footer-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .footer-links-group a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s ease;
    }

    .footer-links-group a:hover {
      color: var(--neon-cyan);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    /* 浮动客服入口与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .tool-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: var(--text-main);
      font-size: 1.1rem;
      transition: all 0.25s ease;
    }

    .tool-btn:hover {
      background: var(--neon-cyan);
      color: #ffffff;
      border-color: var(--neon-cyan);
      transform: translateY(-3px);
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-h1 { font-size: 2.1rem; }
      .hero-metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
      .pricing-table-grid { grid-template-columns: 1fr; }
      .media-showcase-grid { grid-template-columns: 1fr; }
      .banner-gallery-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .contact-layout { grid-template-columns: 1fr; }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid #e2e8f0;
        padding: 20px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
    }

    @media (max-width: 640px) {
      .hero-h1 { font-size: 1.7rem; }
      .services-grid { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-col-full { grid-column: span 1; }
      .articles-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }