:root {
      --primary: #f59e0b;
      --primary-hover: #d97706;
      --accent: #fbbf24;
      --accent-light: #fffbeb;
      --accent-glow: rgba(245, 158, 11, 0.15);
      --dark-text: #1e293b;
      --medium-text: #475569;
      --light-text: #64748b;
      --card-bg: #ffffff;
      --card-border: #f1f5f9;
      --card-border-hover: #fde68a;
      --page-bg: #fafaf9;
      --section-alt-bg: #f8fafc;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 12px rgba(245, 158, 11, 0.08);
      --shadow-lg: 0 12px 30px rgba(0,0,0,0.06);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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, "Noto Sans", sans-serif;
      background-color: var(--page-bg);
      color: var(--dark-text);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 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 #fef3c7;
      transition: var(--transition);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }
    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: #b45309;
      letter-spacing: -0.5px;
    }
    .brand-text span {
      color: #f59e0b;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links a {
      text-decoration: none;
      color: var(--dark-text);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      display: inline-block;
    }
    .nav-links a:hover {
      color: #b45309;
      background: #fef3c7;
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-header-cta {
      background: linear-gradient(135deg, #fbbf24, #f59e0b);
      color: #ffffff;
      padding: 8px 18px;
      font-weight: 700;
      border-radius: 30px;
      text-decoration: none;
      font-size: 0.9rem;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
      transition: var(--transition);
    }
    .btn-header-cta:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 14px rgba(245, 158, 11, 0.4);
    }
    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--dark-text);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 首屏 Hero 区域（严禁图片） */
    .hero-section {
      background: radial-gradient(circle at 50% 20%, #fffbeb 0%, #fef3c7 45%, #fafaf9 100%);
      padding: 70px 0 60px;
      text-align: center;
      position: relative;
      border-bottom: 1px solid #fde68a;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid #fbbf24;
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #b45309;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background: #f59e0b;
      border-radius: 50%;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.8; }
    }
    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: #d97706;
      display: inline-block;
      position: relative;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--medium-text);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .btn-hero-primary {
      background: linear-gradient(135deg, #f59e0b, #d97706);
      color: #ffffff;
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 800;
      border-radius: 50px;
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(245, 158, 11, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(245, 158, 11, 0.45);
    }
    .btn-hero-secondary {
      background: #ffffff;
      color: #b45309;
      border: 2px solid #fbbf24;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: 50px;
      text-decoration: none;
      transition: var(--transition);
    }
    .btn-hero-secondary:hover {
      background: #fffbeb;
      border-color: #f59e0b;
    }

    /* 首屏数据指标卡片（几何纯代码构建，无图片） */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }
    .metric-card {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid #fef3c7;
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }
    .metric-card:hover {
      transform: translateY(-3px);
      border-color: #fbbf24;
      box-shadow: var(--shadow-md);
    }
    .metric-num {
      font-size: 2rem;
      font-weight: 900;
      color: #b45309;
      margin-bottom: 4px;
      font-family: inherit;
    }
    .metric-label {
      font-size: 0.875rem;
      color: var(--light-text);
      font-weight: 600;
    }

    /* 公共模块框架 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap-alt {
      background-color: var(--section-alt-bg);
      border-top: 1px solid #f1f5f9;
      border-bottom: 1px solid #f1f5f9;
    }
    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 50px;
    }
    .section-subtitle {
      text-transform: uppercase;
      font-size: 0.85rem;
      font-weight: 800;
      color: #d97706;
      letter-spacing: 1.5px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-lead {
      font-size: 1rem;
      color: var(--medium-text);
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .intro-content h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 18px;
    }
    .intro-content p {
      color: var(--medium-text);
      margin-bottom: 20px;
      line-height: 1.7;
    }
    .intro-highlights {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    .highlight-item {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border-left: 4px solid #f59e0b;
      box-shadow: var(--shadow-sm);
    }
    .highlight-item h4 {
      font-size: 0.95rem;
      color: #0f172a;
      margin-bottom: 6px;
    }
    .highlight-item p {
      font-size: 0.85rem;
      color: var(--light-text);
      margin-bottom: 0;
      line-height: 1.5;
    }
    .intro-visual {
      background: linear-gradient(145deg, #fffbeb, #ffffff);
      border: 2px dashed #fde68a;
      border-radius: var(--radius-lg);
      padding: 30px;
      position: relative;
    }
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .model-pill {
      background: #ffffff;
      border: 1px solid #fef3c7;
      padding: 8px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #b45309;
      border-radius: 20px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
      transition: var(--transition);
    }
    .model-pill:hover {
      background: #f59e0b;
      color: #ffffff;
      border-color: #f59e0b;
    }

    /* 服务能力卡片 (AIGC服务 + 场景) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .service-card:hover {
      border-color: var(--card-border-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .service-tag {
      align-self: flex-start;
      background: #fffbeb;
      color: #b45309;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 14px;
    }
    .service-card h3 {
      font-size: 1.25rem;
      color: #0f172a;
      margin-bottom: 10px;
    }
    .service-card p {
      font-size: 0.9rem;
      color: var(--medium-text);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 一站式制作步骤 / 流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid #f1f5f9;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: #fde68a;
      box-shadow: var(--shadow-md);
    }
    .step-badge {
      width: 44px;
      height: 44px;
      background: #fffbeb;
      border: 2px solid #fbbf24;
      color: #b45309;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: 800;
      margin: 0 auto 16px;
    }
    .step-card h4 {
      font-size: 1.1rem;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 0.85rem;
      color: var(--light-text);
      line-height: 1.5;
    }

    /* 宣传图画廊组件 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }
    .banner-img-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #f1f5f9;
      box-shadow: var(--shadow-sm);
    }
    .banner-img-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }
    .banner-img-item:hover img {
      transform: scale(1.04);
    }

    /* 案例中心 & 行业方案 */
    .case-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: center;
    }
    .case-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      background: #ffffff;
      padding: 8px;
    }
    .case-img-wrap img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
    }
    .case-info h3 {
      font-size: 1.5rem;
      color: #0f172a;
      margin-bottom: 14px;
    }
    .case-info p {
      color: var(--medium-text);
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .case-list {
      list-style: none;
    }
    .case-list li {
      position: relative;
      padding-left: 20px;
      font-size: 0.9rem;
      color: var(--dark-text);
      margin-bottom: 8px;
    }
    .case-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: #f59e0b;
      font-weight: bold;
    }

    /* 对比评测模块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #fffbeb, #fef3c7);
      border: 1px solid #fde68a;
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .eval-score-wrap {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }
    .eval-score-val {
      font-size: 3rem;
      font-weight: 900;
      color: #b45309;
      line-height: 1;
    }
    .eval-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }
    .eval-details {
      max-width: 650px;
    }
    .eval-details h3 {
      font-size: 1.25rem;
      color: #0f172a;
      margin-bottom: 6px;
    }
    .eval-details p {
      font-size: 0.9rem;
      color: var(--medium-text);
    }
    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #f1f5f9;
      box-shadow: var(--shadow-sm);
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9rem;
    }
    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
    }
    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #0f172a;
    }
    .eval-table th.brand-col {
      background: #fffbeb;
      color: #b45309;
    }
    .eval-table td.brand-col {
      background: #fffdf5;
      font-weight: 600;
      color: #b45309;
    }

    /* 需求匹配与价格/Token比价 */
    .compare-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .compare-card {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .compare-card:hover {
      border-color: #fbbf24;
      box-shadow: var(--shadow-md);
    }
    .compare-card.featured {
      border-color: #f59e0b;
      position: relative;
      background: #fffdf7;
    }
    .featured-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: #f59e0b;
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: bold;
      padding: 2px 10px;
      border-radius: 12px;
    }
    .compare-card h4 {
      font-size: 1.15rem;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .compare-price {
      font-size: 1.75rem;
      font-weight: 800;
      color: #b45309;
      margin-bottom: 16px;
    }
    .compare-card ul {
      list-style: none;
      font-size: 0.875rem;
      color: var(--medium-text);
    }
    .compare-card ul li {
      margin-bottom: 8px;
      position: relative;
      padding-left: 18px;
    }
    .compare-card ul li::before {
      content: "•";
      color: #f59e0b;
      position: absolute;
      left: 0;
      font-size: 1.2rem;
      line-height: 1;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.9rem;
      color: var(--dark-text);
      line-height: 1.6;
      margin-bottom: 16px;
      position: relative;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f8fafc;
      padding-top: 14px;
    }
    .review-avatar-text {
      width: 40px;
      height: 40px;
      background: #fffbeb;
      border: 1px solid #fbbf24;
      color: #b45309;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.95rem;
    }
    .review-meta h5 {
      font-size: 0.9rem;
      color: #0f172a;
    }
    .review-meta span {
      font-size: 0.75rem;
      color: var(--light-text);
    }

    /* 常见问题 FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: #fde68a;
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 700;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      outline: none;
    }
    .faq-icon {
      font-size: 1.25rem;
      color: #f59e0b;
      transition: var(--transition);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fafaf9;
    }
    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 0.9rem;
      color: var(--medium-text);
      line-height: 1.7;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* 文章列表 & 行业资讯 */
    .articles-section {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #f1f5f9;
      padding: 24px;
      margin-top: 30px;
    }
    .articles-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }
    .article-pill {
      text-decoration: none;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      color: #0f172a;
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 500;
      transition: var(--transition);
    }
    .article-pill:hover {
      background: #fef3c7;
      border-color: #f59e0b;
      color: #b45309;
    }

    /* 加盟代理 & 需求表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }
    .contact-info-panel {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .contact-info-panel h3 {
      font-size: 1.4rem;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .contact-info-panel p {
      font-size: 0.9rem;
      color: var(--medium-text);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .qr-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #fffbeb;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #fde68a;
      margin-bottom: 24px;
    }
    .qr-wrap img {
      width: 90px;
      height: 90px;
      border-radius: var(--radius-sm);
      display: block;
      border: 1px solid #fcd34d;
    }
    .qr-desc h4 {
      font-size: 0.95rem;
      color: #b45309;
      margin-bottom: 4px;
    }
    .qr-desc p {
      font-size: 0.8rem;
      color: var(--medium-text);
      margin-bottom: 0;
    }
    .contact-meta-list {
      list-style: none;
      font-size: 0.9rem;
    }
    .contact-meta-list li {
      margin-bottom: 10px;
      color: var(--dark-text);
    }
    .contact-meta-list strong {
      color: #0f172a;
      margin-right: 6px;
    }

    .form-panel {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .form-panel h3 {
      font-size: 1.4rem;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: #0f172a;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--dark-text);
      transition: var(--transition);
      background: #fafaf9;
    }
    .form-control:focus {
      outline: none;
      border-color: #f59e0b;
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, #f59e0b, #d97706);
      color: #ffffff;
      border: none;
      padding: 14px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
    }
    .btn-submit:hover {
      box-shadow: 0 6px 16px rgba(245, 158, 11, 0.35);
      transform: translateY(-1px);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #111827;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.875rem;
    }
    .footer-container {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #1f2937;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 12px;
      font-weight: 800;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 400px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 0.95rem;
      margin-bottom: 14px;
      font-weight: 700;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 8px;
    }
    .footer-col ul a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }
    .footer-col ul a:hover {
      color: #fbbf24;
    }
    .friend-links-box {
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid #1f2937;
    }
    .friend-links-box span {
      color: #ffffff;
      font-weight: 600;
      margin-right: 12px;
    }
    .friend-links-box a {
      color: #94a3b8;
      text-decoration: none;
      margin-right: 16px;
      display: inline-block;
      transition: var(--transition);
      font-size: 0.85rem;
    }
    .friend-links-box a:hover {
      color: #fbbf24;
    }
    .footer-bottom {
      padding-top: 30px;
      text-align: center;
      color: #64748b;
      font-size: 0.8rem;
    }

    /* 悬浮客服面板 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #fbbf24;
      color: #b45309;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.85rem;
      transition: var(--transition);
      cursor: pointer;
    }
    .float-btn:hover {
      background: #f59e0b;
      color: #ffffff;
      transform: scale(1.05);
    }
    .float-btn.top-btn {
      display: none;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-title { font-size: 2.2rem; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(2, 1fr); }
      .hero-metrics { grid-template-columns: repeat(2, 1fr); }
      .banner-gallery-grid { grid-template-columns: repeat(2, 1fr); }
      .compare-cards-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .intro-grid { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .contact-grid { grid-template-columns: 1fr; }
      .footer-container { grid-template-columns: 1fr; gap: 30px; }
    }

    @media (max-width: 768px) {
      .nav-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-bottom: 1px solid #fef3c7;
      }
      .nav-links.active { display: flex; }
      .nav-links a { width: 100%; text-align: left; padding: 12px; }
      .hero-title { font-size: 1.8rem; }
      .services-grid { grid-template-columns: 1fr; }
      .hero-metrics { grid-template-columns: 1fr 1fr; }
      .section-wrap { padding: 50px 0; }
    }