:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --rainbow-1: #4f46e5;
      --rainbow-2: #7c3aed;
      --rainbow-3: #db2777;
      --rainbow-4: #ea580c;
      --rainbow-5: #059669;
      --rainbow-grad: linear-gradient(135deg, #4f46e5 0%, #7c3aed 30%, #db2777 65%, #ea580c 100%);
      --rainbow-light: linear-gradient(135deg, rgba(79,70,229,0.06) 0%, rgba(124,58,237,0.06) 35%, rgba(219,39,119,0.06) 70%, rgba(234,88,12,0.06) 100%);
      --border-color: #e2e8f0;
      --border-highlight: rgba(124,58,237,0.25);
      --shadow-sm: 0 2px 8px rgba(15,23,42,0.04);
      --shadow-md: 0 10px 25px -5px rgba(15,23,42,0.08), 0 8px 10px -6px rgba(15,23,42,0.04);
      --shadow-lg: 0 20px 35px -10px rgba(79,70,229,0.12), 0 1px 3px rgba(0,0,0,0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-max: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
    }

    body {
      background: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部彩虹装饰线条 */
    .top-rainbow-bar {
      height: 4px;
      width: 100%;
      background: var(--rainbow-grad);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      max-height: 42px;
    }

    .brand-logo-wrap img {
      max-height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: var(--rainbow-grad);
      color: #ffffff;
      line-height: 1.2;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      padding: 10px 14px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      text-align: center;
    }

    .btn-rainbow {
      background: var(--rainbow-grad);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
    }

    .btn-rainbow:hover {
      opacity: 0.95;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      border-color: var(--border-color);
      color: var(--text-main);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(79, 70, 229, 0.04);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: var(--text-main);
    }

    /* 区域统一标准 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-wrap-alt {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-title-wrap {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 16px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 700;
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      border: 1px solid rgba(79, 70, 229, 0.15);
      margin-bottom: 14px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 首屏 HERO 区域 - 严禁出现图片 */
    .hero-section {
      padding: 90px 0 80px;
      background: var(--rainbow-light);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 20px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid rgba(124, 58, 237, 0.2);
      box-shadow: var(--shadow-sm);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title-accent {
      background: var(--rainbow-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-cta-group .btn {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .hero-features-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 1060px;
      margin: 0 auto;
    }

    .hero-feature-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: left;
      transition: all 0.3s ease;
      border-top: 4px solid var(--rainbow-1);
    }

    .hero-feature-card:nth-child(2) { border-top-color: var(--rainbow-2); }
    .hero-feature-card:nth-child(3) { border-top-color: var(--rainbow-3); }
    .hero-feature-card:nth-child(4) { border-top-color: var(--rainbow-4); }

    .hero-feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .hero-feature-num {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .hero-feature-label {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 平台介绍 & 关于我们 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-text-block {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .intro-text-block h3 {
      font-size: 1.5rem;
      margin-bottom: 16px;
      font-weight: 700;
      color: var(--text-main);
    }

    .intro-text-block p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 0.98rem;
    }

    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .model-tag {
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 600;
      background: #f1f5f9;
      color: #334155;
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-tag:hover {
      background: var(--rainbow-grad);
      color: #ffffff;
      border-color: transparent;
      transform: translateY(-2px);
    }

    /* AIGC 服务矩阵卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px 26px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--rainbow-grad);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--border-highlight);
    }

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

    .service-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: var(--rainbow-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
      color: var(--primary);
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }

    .service-points {
      list-style: none;
      margin-top: auto;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    .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: var(--primary);
      font-weight: bold;
    }

    /* 场景专区网格 (20+ 真实场景展示) */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .scenario-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .scenario-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      background: #f1f5f9;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .scenario-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .scenario-text {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 标准制作流程 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-badge {
      width: 46px;
      height: 46px;
      border-radius: var(--radius-full);
      background: var(--rainbow-grad);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
      box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 案例展示专区 (图文混合) */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 30px;
      align-items: stretch;
    }

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

    .media-img-holder {
      width: 100%;
      background: #f1f5f9;
      position: relative;
    }

    .media-img-holder img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .media-body {
      padding: 24px;
    }

    .media-body h4 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

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

    .media-sub-grid {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .media-sub-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 12px;
    }

    .media-sub-thumb {
      width: 130px;
      height: 95px;
      flex-shrink: 0;
      border-radius: var(--radius-sm);
      overflow: hidden;
      background: #e2e8f0;
    }

    .media-sub-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .media-sub-info h5 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .media-sub-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 对比评测表格与评级专区 */
    .compare-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .compare-header-summary {
      background: var(--rainbow-light);
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      flex-wrap: wrap;
      gap: 20px;
    }

    .score-badge-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-num {
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-details h4 {
      font-size: 1.1rem;
      font-weight: 700;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }

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

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

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .compare-table .highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    .tag-yes {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: #059669;
      font-weight: 700;
    }

    .tag-no {
      color: #94a3b8;
    }

    /* 用户评论卡片 6条 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }

    .review-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
      border-color: var(--primary);
    }

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

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-full);
      background: var(--rainbow-grad);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .review-user-info h5 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-user-info span {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    .review-body {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .review-stars {
      color: #f59e0b;
      font-size: 0.85rem;
    }

    /* 需求匹配与表单 */
    .contact-form-wrap {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .contact-info-panel {
      background: var(--rainbow-light);
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border-right: 1px solid var(--border-color);
    }

    .contact-info-panel h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .contact-info-panel p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 24px;
    }

    .contact-meta-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.92rem;
      color: var(--text-main);
    }

    .contact-meta-icon {
      width: 32px;
      height: 32px;
      border-radius: var(--radius-sm);
      background: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      border: 1px solid var(--border-color);
    }

    .form-panel {
      padding: 40px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: all 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* FAQ 折叠手风琴 */
    .faq-accordion {
      max-width: 900px;
      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;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      padding: 0 24px 20px;
      color: var(--text-muted);
      font-size: 0.93rem;
      line-height: 1.65;
      display: none;
    }

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

    /* 行业资讯 & 最新文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .article-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .article-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .article-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 16px;
    }

    .article-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      margin-top: auto;
      border-top: 1px solid #1e293b;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #1e293b;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      color: #94a3b8;
      margin-bottom: 20px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-nav {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-nav a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-nav a:hover {
      color: #ffffff;
    }

    .footer-qr-wrap {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-qr-img {
      width: 110px;
      height: 110px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      padding: 6px;
    }

    .footer-qr-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .friend-links-box {
      margin-bottom: 30px;
      font-size: 0.85rem;
    }

    .friend-links-title {
      color: #cbd5e1;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-list a {
      color: #64748b;
    }

    .friend-links-list a:hover {
      color: #cbd5e1;
    }

    .footer-bottom {
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

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

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 1.2rem;
    }

    .float-btn:hover {
      background: var(--rainbow-grad);
      color: #ffffff;
      border-color: transparent;
      transform: scale(1.08);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-features-strip { grid-template-columns: repeat(2, 1fr); }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
      .flow-steps-grid { grid-template-columns: repeat(2, 1fr); }
      .media-showcase-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .articles-grid { grid-template-columns: repeat(2, 1fr); }
      .contact-form-wrap { grid-template-columns: 1fr; }
      .contact-info-panel { border-right: none; border-bottom: 1px solid var(--border-color); }
      .footer-top-grid { grid-template-columns: 1fr 1fr; }
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
    }

    @media (max-width: 640px) {
      .hero-title { font-size: 2rem; }
      .hero-features-strip { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .scenarios-grid { grid-template-columns: 1fr; }
      .flow-steps-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: 1fr; }
      .footer-top-grid { grid-template-columns: 1fr; }
      .section-wrap { padding: 50px 0; }
    }