:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --color-primary: #0052ff;
      --color-accent: #ff2a5f;
      --color-amber: #ff9900;
      --color-emerald: #00b86b;
      --color-purple: #7928ca;
      --color-cyan: #00d2d3;
      --border-light: #e2e8f0;
      --border-contrast: #0f172a;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-pop: 4px 4px 0px #0f172a;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-width: 1240px;
    }

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

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

    body {
      background-color: var(--bg-main);
      color: var(--text-dark);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    ul, ol {
      list-style: none;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--text-dark);
    }

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

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

    .brand-box .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-dark);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 600;
      padding: 8px 12px;
      color: var(--text-dark);
      border-radius: var(--radius-sm);
      transition: background-color 0.2s, color 0.2s;
    }

    .nav-links a:hover {
      background-color: #f1f5f9;
      color: var(--color-primary);
    }

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

    .btn-nav-primary {
      background: var(--color-accent);
      color: #ffffff;
      padding: 9px 18px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: 2px solid var(--text-dark);
      box-shadow: 2px 2px 0 var(--text-dark);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-nav-primary:hover {
      transform: translate(-1px, -1px);
      box-shadow: 4px 4px 0 var(--text-dark);
      color: #ffffff;
    }

    .mobile-menu-btn {
      display: none;
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: 6px;
      padding: 6px 10px;
      font-weight: 800;
      cursor: pointer;
    }

    /* 首屏 Hero (无图片) */
    .hero-section {
      background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 50%, #fff1f2 100%);
      border-bottom: 2px solid var(--text-dark);
      padding: 80px 0 90px;
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 2px solid var(--text-dark);
      box-shadow: 3px 3px 0 var(--color-amber);
      border-radius: 50px;
      font-size: 14px;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 24px;
    }

    .hero-badge-tag {
      background: var(--color-primary);
      color: #ffffff;
      padding: 2px 8px;
      border-radius: 20px;
      font-size: 12px;
    }

    .hero-title {
      font-size: 46px;
      line-height: 1.25;
      font-weight: 900;
      letter-spacing: -1px;
      margin-bottom: 20px;
      color: var(--text-dark);
    }

    .hero-subtitle {
      font-size: 18px;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }

    .btn-hero-official {
      background: var(--color-primary);
      color: #ffffff;
      font-size: 17px;
      font-weight: 800;
      padding: 15px 36px;
      border-radius: var(--radius-md);
      border: 2px solid var(--text-dark);
      box-shadow: 4px 4px 0 var(--text-dark);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-hero-official:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--text-dark);
      background: #0043d0;
      color: #ffffff;
    }

    .btn-hero-sub {
      background: #ffffff;
      color: var(--text-dark);
      font-size: 17px;
      font-weight: 800;
      padding: 15px 32px;
      border-radius: var(--radius-md);
      border: 2px solid var(--text-dark);
      box-shadow: 4px 4px 0 var(--text-dark);
    }

    .btn-hero-sub:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--text-dark);
      background: #f8fafc;
    }

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

    .tag-item {
      background: #ffffff;
      border: 1.5px solid var(--text-dark);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-dark);
      box-shadow: 2px 2px 0 rgba(15, 23, 42, 0.15);
    }

    /* 数据指标条 */
    .metrics-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .metric-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
      box-shadow: var(--shadow-pop);
    }

    .metric-value {
      font-size: 32px;
      font-weight: 900;
      color: var(--color-accent);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* Section 通用 */
    .section-wrap {
      padding: 80px 0;
      border-bottom: 2px solid var(--text-dark);
    }

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

    .section-pill {
      display: inline-block;
      padding: 4px 14px;
      font-size: 12px;
      font-weight: 900;
      text-transform: uppercase;
      border-radius: 20px;
      border: 1.5px solid var(--text-dark);
      margin-bottom: 12px;
    }

    .pill-blue { background: #dbeafe; color: #1e40af; }
    .pill-pink { background: #ffe4e6; color: #9f1239; }
    .pill-green { background: #d1fae5; color: #065f46; }
    .pill-amber { background: #fef3c7; color: #92400e; }
    .pill-purple { background: #f3e8ff; color: #6b21a8; }

    .section-title {
      font-size: 32px;
      font-weight: 900;
      color: var(--text-dark);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 平台介绍 / 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: stretch;
    }

    .about-text-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 6px 6px 0 var(--color-primary);
    }

    .about-text-card h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .about-text-card p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 15px;
      line-height: 1.8;
    }

    .about-features-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .about-feat-item {
      background: #f8fafc;
      border: 1.5px solid var(--border-light);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-feat-item span {
      color: var(--color-emerald);
      font-size: 16px;
    }

    .models-matrix-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 6px 6px 0 var(--color-accent);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .models-matrix-card h4 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }

    .model-chip {
      background: #ffffff;
      border: 1.5px solid var(--text-dark);
      padding: 5px 12px;
      border-radius: 8px;
      font-size: 12px;
      font-weight: 800;
      box-shadow: 2px 2px 0 #cbd5e1;
    }

    .model-chip.highlight {
      background: #fffbeb;
      border-color: var(--color-amber);
      color: #b45309;
    }

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

    .service-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-pop);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 6px 6px 0 var(--text-dark);
    }

    .card-badge {
      display: inline-block;
      padding: 3px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 800;
      width: fit-content;
      margin-bottom: 14px;
      border: 1px solid var(--text-dark);
    }

    .service-card h3 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .card-footer-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
    }

    .card-tag {
      font-size: 12px;
      background: #f1f5f9;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 行业方案图文区 */
    .gallery-showcase {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .showcase-media-box {
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 6px 6px 0 var(--color-amber);
      background: #ffffff;
    }

    .showcase-media-box img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      display: block;
    }

    .showcase-info {
      padding: 20px;
    }

    .showcase-info h4 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .showcase-info p {
      font-size: 14px;
      color: var(--text-muted);
    }

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

    .step-box {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--text-dark);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .step-box h3 {
      font-size: 18px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .step-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测模块 */
    .eval-highlight-panel {
      background: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 8px 8px 0 var(--color-emerald);
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .eval-score-block {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-circle {
      width: 100px;
      height: 100px;
      background: var(--color-emerald);
      color: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 3px 3px 0 var(--text-dark);
    }

    .score-circle .number {
      font-size: 30px;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle .max-score {
      font-size: 12px;
      font-weight: 700;
    }

    .eval-meta h3 {
      font-size: 24px;
      font-weight: 900;
      margin-bottom: 6px;
    }

    .eval-meta .star-rating {
      font-size: 18px;
      color: var(--color-amber);
      font-weight: 800;
      margin-bottom: 6px;
    }

    .eval-meta p {
      font-size: 14px;
      color: var(--text-muted);
    }

    .eval-table-wrap {
      overflow-x: auto;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      background: #ffffff;
    }

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

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
      font-size: 14px;
    }

    .eval-table th {
      background: #f1f5f9;
      font-weight: 800;
      color: var(--text-dark);
      border-bottom: 2px solid var(--text-dark);
    }

    .eval-table td:nth-child(2) {
      background: #f0fdf4;
      font-weight: 800;
      color: #15803d;
    }

    .eval-table tr:last-child td {
      border-bottom: none;
    }

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

    .price-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .price-card.featured {
      border-width: 3px;
      border-color: var(--color-primary);
      box-shadow: 6px 6px 0 var(--color-primary);
      transform: scale(1.02);
    }

    .price-card .badge-rec {
      position: absolute;
      top: -14px;
      right: 20px;
      background: var(--color-accent);
      color: #ffffff;
      padding: 4px 12px;
      font-size: 12px;
      font-weight: 800;
      border-radius: 20px;
      border: 1.5px solid var(--text-dark);
    }

    .price-head {
      margin-bottom: 20px;
    }

    .price-head h3 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .price-cost {
      font-size: 32px;
      font-weight: 900;
      color: var(--color-primary);
      line-height: 1.2;
    }

    .price-cost span {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
    }

    .price-features {
      margin: 20px 0;
      flex-grow: 1;
    }

    .price-features li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-features li::before {
      content: "✔";
      color: var(--color-emerald);
      font-weight: 900;
    }

    .btn-price {
      background: var(--text-dark);
      color: #ffffff;
      text-align: center;
      padding: 12px;
      border-radius: var(--radius-sm);
      font-weight: 800;
      font-size: 14px;
      border: 2px solid var(--text-dark);
    }

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

    /* 加盟代理模块 */
    .agency-banner {
      background: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 6px 6px 0 var(--text-dark);
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .agency-text h3 {
      font-size: 28px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .agency-text p {
      font-size: 15px;
      color: var(--text-dark);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .agency-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .perk-pill {
      background: #ffffff;
      border: 1.5px solid var(--text-dark);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 800;
    }

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

    .case-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
    }

    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #f1f5f9;
      border-bottom: 2px solid var(--text-dark);
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-body {
      padding: 20px;
    }

    .case-body h4 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

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

    .review-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
    }

    .review-stars {
      color: var(--color-amber);
      font-size: 14px;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #e2e8f0;
      border: 1.5px solid var(--text-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 16px;
      color: var(--text-dark);
    }

    .reviewer-meta h5 {
      font-size: 14px;
      font-weight: 800;
    }

    .reviewer-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 需求匹配表单 */
    .form-section-card {
      background: #ffffff;
      border: 3px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 8px 8px 0 var(--color-primary);
      max-width: 860px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

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

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

    .form-group label {
      font-size: 14px;
      font-weight: 800;
      color: var(--text-dark);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      background: #f8fafc;
      transition: background 0.2s, border-color 0.2s;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      background: #ffffff;
      border-color: var(--color-primary);
    }

    .btn-submit-form {
      background: var(--color-accent);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      padding: 14px 28px;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-sm);
      box-shadow: 4px 4px 0 var(--text-dark);
      cursor: pointer;
      width: 100%;
      margin-top: 10px;
    }

    .btn-submit-form:hover {
      transform: translate(-1px, -1px);
      box-shadow: 6px 6px 0 var(--text-dark);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 800;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }

    .faq-question:hover {
      background: #f8fafc;
    }

    .faq-icon {
      font-size: 18px;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-light);
      padding-top: 16px;
    }

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

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

    /* 文章与百科 */
    .article-section-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .article-block {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-pop);
    }

    .article-block h3 {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 16px;
      border-bottom: 2px solid var(--border-light);
      padding-bottom: 10px;
    }

    .article-links-list li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .article-links-list a {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-dark);
    }

    .article-links-list a:hover {
      color: var(--color-primary);
      text-decoration: underline;
    }

    /* 联系我们 */
    .contact-card-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .contact-info-list {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 6px 6px 0 var(--color-purple);
    }

    .contact-info-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 20px;
      font-size: 15px;
    }

    .contact-info-item strong {
      min-width: 90px;
      color: var(--text-dark);
    }

    .qr-card {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: var(--radius-lg);
      padding: 28px;
      text-align: center;
      box-shadow: 6px 6px 0 var(--color-emerald);
    }

    .qr-card img {
      max-width: 180px;
      height: auto;
      border-radius: var(--radius-sm);
      border: 1.5px solid var(--text-dark);
      margin-bottom: 12px;
    }

    .qr-card p {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 底部 Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px;
      border-top: 3px solid var(--text-dark);
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      max-width: 420px;
    }

    .footer-links h5 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-links ul li {
      margin-bottom: 8px;
    }

    .footer-links ul li a {
      font-size: 13px;
      color: #cbd5e1;
    }

    .footer-links ul li a:hover {
      color: var(--color-cyan);
    }

    .friend-links-wrap {
      border-top: 1px solid #334155;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-wrap span {
      font-size: 13px;
      font-weight: 800;
      color: #ffffff;
      margin-right: 12px;
    }

    .friend-links-wrap a {
      color: #94a3b8;
      font-size: 13px;
      margin-right: 14px;
      display: inline-block;
      margin-bottom: 6px;
    }

    .friend-links-wrap a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

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

    .float-btn {
      background: #ffffff;
      border: 2px solid var(--text-dark);
      border-radius: 50px;
      padding: 10px 16px;
      font-size: 13px;
      font-weight: 800;
      color: var(--text-dark);
      box-shadow: 3px 3px 0 var(--text-dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      text-decoration: none;
    }

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

    .float-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0 var(--text-dark);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .services-grid, .pricing-grid, .case-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-strip, .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .agency-banner, .contact-card-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--text-dark);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
        border-radius: 0;
        border-bottom: 1px solid var(--border-light);
      }
      .hero-title {
        font-size: 30px;
      }
      .hero-subtitle {
        font-size: 15px;
      }
      .services-grid, .pricing-grid, .case-grid, .reviews-grid, .metrics-strip, .flow-steps, .gallery-showcase, .article-section-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .eval-score-block {
        flex-direction: column;
        text-align: center;
      }
    }