:root {
      --primary: #0284c7;
      --primary-hover: #0369a1;
      --accent: #f97316;
      --accent-hover: #ea580c;
      --bg-base: #f8fafc;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #38bdf8;
      --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --max-width: 1200px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--primary-hover);
    }

    .container {
      width: 100%;
      max-width: var(--max-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(10px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-img {
      height: 40px;
      width: auto;
      display: block;
    }
    .brand-title-wrap {
      display: flex;
      flex-direction: column;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.2;
    }
    .brand-slogan {
      font-size: 0.75rem;
      color: var(--text-light);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      transition: all 0.2s;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: var(--bg-subtle);
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.9375rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: var(--primary);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 16px rgba(2, 132, 199, 0.35);
      transform: translateY(-1px);
    }
    .btn-accent {
      background: var(--accent);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(249, 115, 22, 0.25);
    }
    .btn-accent:hover {
      background: var(--accent-hover);
      box-shadow: 0 6px 16px rgba(249, 115, 22, 0.35);
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--border-color);
      background: #ffffff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--bg-subtle);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-size: 1.25rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* Section 通用 */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--primary);
      background: rgba(2, 132, 199, 0.1);
      border-radius: 9999px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Hero 首屏 (无图模式，纯CSS+高光) */
    .hero-section {
      padding: 90px 0 80px;
      background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 50%, #e0f2fe 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-glow-1 {
      position: absolute;
      top: -120px;
      left: 10%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(56, 189, 248, 0.18) 0%, rgba(255,255,255,0) 70%);
      pointer-events: none;
    }
    .hero-glow-2 {
      position: absolute;
      bottom: -100px;
      right: 5%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(249, 115, 22, 0.12) 0%, rgba(255,255,255,0) 70%);
      pointer-events: none;
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid rgba(2, 132, 199, 0.2);
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: 0 2px 6px rgba(0,0,0,0.03);
      margin-bottom: 24px;
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-subtitle {
      font-size: 1.1875rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }
    .hero-actions .btn {
      padding: 14px 32px;
      font-size: 1.0625rem;
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: left;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      box-shadow: var(--card-shadow);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .metric-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--card-shadow-hover);
    }
    .metric-num {
      font-size: 1.875rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
    }
    .metric-title {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .metric-sub {
      font-size: 0.8125rem;
      color: var(--text-light);
    }

    /* 关于我们 / 平台能力 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-info h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--text-main);
    }
    .about-info p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .highlight-item {
      background: var(--bg-subtle);
      padding: 16px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
    }
    .highlight-item h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .highlight-item p {
      font-size: 0.875rem;
      color: var(--text-light);
      margin-bottom: 0;
    }

    .about-media-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 12px;
      box-shadow: var(--card-shadow);
    }
    .about-media-box img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      object-fit: cover;
    }

    /* 矩阵网格卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--card-shadow);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      border-color: var(--border-focus);
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: rgba(2, 132, 199, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 18px;
    }
    .service-card h3 {
      font-size: 1.1875rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .service-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 14px;
    }
    .service-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .service-tag {
      font-size: 0.75rem;
      padding: 2px 8px;
      background: var(--bg-subtle);
      color: var(--text-light);
      border-radius: 4px;
    }

    /* 多模型生态徽章区 */
    .model-tags-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--card-shadow);
      margin-top: 36px;
    }
    .model-tags-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      text-align: center;
    }
    .model-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .model-chip {
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      transition: all 0.2s ease;
    }
    .model-chip:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 标准制作流程 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--card-shadow);
      position: relative;
    }
    .step-badge {
      font-size: 2.25rem;
      font-weight: 900;
      color: rgba(2, 132, 199, 0.18);
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-card h3 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例中心 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .case-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--card-shadow-hover);
    }
    .case-img-wrap {
      width: 100%;
      height: 200px;
      background: var(--bg-subtle);
      overflow: hidden;
    }
    .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(1.03);
    }
    .case-body {
      padding: 20px;
    }
    .case-cat {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .case-body h3 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .case-body p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测板块 */
    .eval-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }
    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 28px;
    }
    .score-summary-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .score-badge {
      background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
      color: #ffffff;
      padding: 16px 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }
    .score-num {
      font-size: 2.25rem;
      font-weight: 900;
      line-height: 1;
    }
    .score-max {
      font-size: 0.8125rem;
      opacity: 0.85;
    }
    .score-text h3 {
      font-size: 1.375rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .stars {
      color: #eab308;
      font-size: 1.125rem;
      letter-spacing: 2px;
    }
    .eval-table-container {
      overflow-x: auto;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.9375rem;
    }
    .eval-table th {
      background: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-main);
    }
    .eval-table td.highlight {
      background: rgba(2, 132, 199, 0.04);
      color: var(--primary);
      font-weight: 700;
    }

    /* Token比价与算力 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      box-shadow: var(--card-shadow);
      text-align: center;
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .pricing-card.popular {
      border: 2px solid var(--primary);
      transform: scale(1.02);
    }
    .pricing-ribbon {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 9999px;
    }
    .pricing-tier {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .pricing-price {
      font-size: 2.25rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .pricing-price span {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-light);
    }
    .pricing-features {
      list-style: none;
      text-align: left;
      margin: 20px 0 28px;
      flex-grow: 1;
    }
    .pricing-features li {
      font-size: 0.9375rem;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-features li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }

    /* 需求匹配与表单 */
    .form-section-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--card-shadow);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-label {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      color: var(--text-main);
      background: #ffffff;
      transition: border-color 0.2s;
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
    }
    .form-textarea {
      min-height: 110px;
      resize: vertical;
    }

    /* FAQ 手风琴面板 */
    .faq-accordion {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: border-color 0.2s;
    }
    .faq-header {
      padding: 18px 24px;
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }
    .faq-header:hover {
      background: var(--bg-subtle);
    }
    .faq-icon {
      font-size: 1.25rem;
      color: var(--text-light);
      transition: transform 0.25s ease;
    }
    .faq-content {
      padding: 0 24px 18px;
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px solid var(--border-color);
      background: #ffffff;
    }
    .faq-item.active .faq-content {
      display: block;
      padding-top: 16px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    /* 用户评论 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      border: 1px solid var(--border-color);
    }
    .author-name {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-role {
      font-size: 0.75rem;
      color: var(--text-light);
    }

    /* 行业资讯 & 帮助中心 */
    .articles-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 28px;
    }
    .article-main-list {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--card-shadow);
    }
    .article-item {
      padding: 14px 0;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }
    .article-item:last-child {
      border-bottom: none;
    }
    .article-title {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .article-title:hover {
      color: var(--primary);
    }
    .article-date {
      font-size: 0.8125rem;
      color: var(--text-light);
      white-space: nowrap;
    }

    .help-sidebar {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .help-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--card-shadow);
    }
    .help-box h4 {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .help-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .help-links-list li a {
      font-size: 0.875rem;
      color: var(--text-muted);
    }
    .help-links-list li a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    /* 加盟代理板块 */
    .agency-card {
      background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
      border: 1px solid #bbf7d0;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--card-shadow);
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 30px;
      align-items: center;
    }
    .agency-content h3 {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .agency-content p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .agency-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 24px;
    }
    .agency-perk-item {
      font-size: 0.875rem;
      font-weight: 600;
      color: #15803d;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .agency-action-box {
      background: #ffffff;
      border: 1px solid #dcfce7;
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
    }
    .agency-action-box h4 {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .agency-action-box p {
      font-size: 0.875rem;
      color: var(--text-light);
      margin-bottom: 16px;
    }

    /* 联系我们 & 二维码 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
    }
    .contact-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--card-shadow);
    }
    .contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 20px;
    }
    .contact-list-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      font-size: 0.9375rem;
      color: var(--text-muted);
    }
    .contact-icon {
      font-size: 1.25rem;
      color: var(--primary);
    }
    .qr-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding: 20px;
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
    }
    .qr-img-wrap {
      width: 160px;
      height: 160px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .qr-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    /* 友情链接 */
    .friend-links-box {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 28px 0;
    }
    .friend-links-title {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--text-light);
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-list a {
      font-size: 0.875rem;
      color: var(--text-muted);
    }
    .friend-links-list a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 28px;
      color: var(--text-muted);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.875rem;
    }
    .footer-brand-info {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand-info img {
      height: 30px;
      width: auto;
    }

    /* 浮动工具栏 */
    .float-toolbar {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
      cursor: pointer;
      transition: all 0.2s;
      font-size: 1.125rem;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: repeat(1, 1fr);
      }
      .pricing-card.popular {
        transform: none;
      }
      .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agency-card {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .nav-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.875rem;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .about-grid, .contact-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .cases-grid, .testimonials-grid, .steps-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }