:root {
      --primary-orange: #ff5500;
      --primary-dark: #e04400;
      --primary-light: #fff5eb;
      --primary-glow: rgba(255, 85, 0, 0.12);
      --accent-flame: #ff7700;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --bg-page: #faf8f5;
      --bg-card: #ffffff;
      --border-color: #f1e5d8;
      --border-highlight: #fed7aa;
      --shadow-sm: 0 2px 8px rgba(255, 85, 0, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(255, 85, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 35px -8px rgba(255, 85, 0, 0.14), 0 10px 15px -3px rgba(0, 0, 0, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

    * {
      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-page);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-page);
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(255, 119, 0, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(255, 85, 0, 0.03) 0%, transparent 40%);
      min-height: 100vh;
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      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: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 14px;
      text-decoration: none;
    }

    .logo-wrapper {
      max-width: 130px;
      display: flex;
      align-items: center;
    }

    .brand-badge {
      background: var(--primary-light);
      color: var(--primary-orange);
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid var(--border-highlight);
    }

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

    .nav-links li a {
      color: var(--text-main);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: color 0.2s ease, background-color 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-orange);
      background-color: var(--primary-light);
    }

    .header-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 30px;
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent-flame), var(--primary-orange));
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #ff851a, var(--primary-dark));
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.4);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--primary-orange);
      border-color: var(--border-highlight);
    }

    .btn-outline:hover {
      background: var(--primary-light);
      border-color: var(--primary-orange);
      transform: translateY(-2px);
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 16px;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* Section 通用规范 */
    .section {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-orange);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      border: 1px solid var(--border-highlight);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-title span {
      color: var(--primary-orange);
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Hero 首屏 (严格无图片) */
    .hero-section {
      padding: 80px 0 60px 0;
      background: radial-gradient(circle at 50% 30%, rgba(255, 85, 0, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-highlight);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 13px;
      color: var(--text-main);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      background: var(--primary-orange);
      border-radius: 50%;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(255, 85, 0, 0.6); }
      70% { box-shadow: 0 0 0 8px rgba(255, 85, 0, 0); }
      100% { box-shadow: 0 0 0 0 rgba(255, 85, 0, 0); }
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: linear-gradient(135deg, var(--accent-flame), var(--primary-orange));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 34px auto;
      line-height: 1.8;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

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

    .stat-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-orange);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 平台介绍 & 核心能力 */
    .about-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .feature-icon-badge {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-orange);
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 18px;
      border: 1px solid var(--border-highlight);
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* AIGC 服务场景矩阵 (20+ 业务) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .service-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.25s ease;
      border-left: 4px solid var(--primary-orange);
    }

    .service-box:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-highlight);
      border-left-color: var(--accent-flame);
    }

    .service-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .service-tag-mini {
      font-size: 11px;
      font-weight: 600;
      color: var(--primary-orange);
      background: var(--primary-light);
      padding: 2px 6px;
      border-radius: 4px;
    }

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

    /* 一站式制作流水线 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .workflow-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      transition: all 0.25s ease;
    }

    .workflow-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-highlight);
    }

    .step-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      color: #ffffff;
      background: var(--primary-orange);
      padding: 2px 10px;
      border-radius: 12px;
      margin-bottom: 14px;
    }

    .workflow-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 模型支持徽章墙 */
    .model-tags-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      margin-top: 30px;
    }

    .model-tags-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .model-tags-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      font-size: 12px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      transition: all 0.2s ease;
    }

    .model-tag:hover {
      background: var(--primary-light);
      border-color: var(--primary-orange);
      color: var(--primary-orange);
      transform: scale(1.05);
    }

    /* 对比评测模块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #fff7f0 0%, #ffffff 100%);
      border: 2px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

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

    .score-circle {
      width: 100px;
      height: 100px;
      background: linear-gradient(135deg, var(--accent-flame), var(--primary-orange));
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.35);
    }

    .score-num {
      font-size: 32px;
      font-weight: 900;
      line-height: 1;
    }

    .score-max {
      font-size: 12px;
      opacity: 0.9;
    }

    .eval-meta h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .stars-render {
      color: #ff9800;
      font-size: 18px;
      margin-bottom: 6px;
    }

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

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

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

    .compare-table th {
      background: #fff8f2;
      color: var(--text-main);
      font-weight: 700;
    }

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

    .highlight-col {
      background: #fffbf7;
      font-weight: 600;
      color: var(--primary-orange);
    }

    /* 案例中心展示 */
    .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(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

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

    .case-img-wrap {
      width: 100%;
      background: #f8fafc;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 20px;
      flex-grow: 1;
    }

    .case-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 客户评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-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;
    }

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

    .review-quote {
      font-size: 13px;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      position: relative;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    .reviewer-avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      border: 1px solid var(--border-highlight);
    }

    .reviewer-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .faq-item.active {
      border-color: var(--primary-orange);
    }

    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
      background: #ffffff;
    }

    .faq-question:hover {
      color: var(--primary-orange);
    }

    .faq-icon {
      font-size: 18px;
      color: var(--primary-orange);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fffdfb;
      padding: 0 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 22px 18px 22px;
      border-top: 1px solid var(--primary-light);
    }

    /* 行业资讯 & 最新文章 */
    .articles-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .article-links-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 20px;
    }

    .article-item-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-size: 13px;
      font-weight: 500;
      transition: all 0.2s ease;
    }

    .article-item-link:hover {
      border-color: var(--primary-orange);
      color: var(--primary-orange);
      background: var(--primary-light);
      transform: translateX(4px);
    }

    .article-bullet {
      width: 6px;
      height: 6px;
      background: var(--primary-orange);
      border-radius: 50%;
    }

    /* 需求匹配与表单板块 */
    .form-section-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-channels {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin: 24px 0;
    }

    .channel-box {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 14px;
      font-size: 13px;
    }

    .channel-label {
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .channel-val {
      color: var(--primary-orange);
      word-break: break-all;
    }

    .qr-contact-block {
      display: flex;
      align-items: center;
      gap: 18px;
      background: #fff8f2;
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 16px;
    }

    .qr-img-box {
      width: 90px;
      height: 90px;
      background: #ffffff;
      padding: 4px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-img-box img {
      max-width: 100%;
      height: auto;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      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: 14px;
      font-family: inherit;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary-orange);
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.12);
    }

    .form-textarea {
      resize: vertical;
      min-height: 90px;
    }

    /* 加盟代理与被动收益专区 */
    .agent-banner {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      border-radius: var(--radius-lg);
      padding: 40px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-lg);
    }

    .agent-content h3 {
      font-size: 24px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .agent-content h3 span {
      color: #ff9800;
    }

    .agent-content p {
      color: #cbd5e1;
      font-size: 14px;
      max-width: 650px;
      line-height: 1.7;
    }

    /* 页脚与友情链接 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 30px 0;
      color: var(--text-muted);
      font-size: 13px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      margin-top: 12px;
      line-height: 1.7;
      color: var(--text-muted);
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .footer-links-list a:hover {
      color: var(--primary-orange);
    }

    .friend-links-box {
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friend-links-box h5 {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .friend-links-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-wrapper a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 12px;
      transition: color 0.2s ease;
    }

    .friend-links-wrapper a:hover {
      color: var(--primary-orange);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
    }

    /* 浮动工具栏 */
    .floating-toolbar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 44px;
      height: 44px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      box-shadow: var(--shadow-md);
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s ease;
      font-size: 18px;
    }

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

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .about-grid,
      .services-grid,
      .cases-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
        gap: 0;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 10px 14px;
      }
      .hero-title {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .about-grid,
      .services-grid,
      .cases-grid,
      .reviews-grid,
      .workflow-grid,
      .article-links-list,
      .form-section-wrapper {
        grid-template-columns: 1fr;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        align-items: flex-start;
      }
      .contact-channels {
        grid-template-columns: 1fr;
      }
    }