:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --primary-light: #eff6ff;
      --accent-cyan: #06b6d4;
      --accent-emerald: #10b981;
      --accent-warm: #f97316;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-hover: #cbd5e1;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 20px -2px rgba(37, 99, 235, 0.08);
      --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 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;
      color: var(--text-main);
      background-color: var(--bg-main);
      line-height: 1.6;
    }

    body {
      background: radial-gradient(circle at 10% 20%, rgba(224, 231, 255, 0.5) 0%, rgba(248, 250, 252, 1) 45%),
                  radial-gradient(circle at 90% 80%, rgba(207, 250, 254, 0.45) 0%, rgba(248, 250, 252, 1) 50%);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 100%;
      overflow-x: hidden;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--primary-hover);
    }

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

    /* 顶部导航 */
    header.site-header {
      width: 100%;
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      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-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-wrap {
      max-width: 140px;
      display: flex;
      align-items: center;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .brand-tag {
      font-size: 0.75rem;
      background: #e0e7ff;
      color: var(--primary);
      padding: 2px 8px;
      border-radius: var(--radius-full);
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 14px;
      display: inline-block;
      border-radius: 6px;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: 1px solid transparent;
      text-decoration: none;
      text-align: center;
      line-height: 1.4;
    }
    .btn-primary {
      background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--text-main) !important;
      border: 1px solid var(--border-color);
    }
    .btn-secondary:hover {
      background: var(--bg-alt);
      border-color: var(--border-hover);
      transform: translateY(-1px);
    }
    .btn-accent {
      background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
      color: #ffffff !important;
    }
    .btn-accent:hover {
      box-shadow: 0 6px 18px rgba(6, 182, 212, 0.35);
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .menu-toggle span {
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 主体布局 */
    main {
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    section {
      width: 100%;
      padding: 70px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.2px;
      background: #dbeafe;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* Hero 首屏 - 纯色/渐变/几何/动效，无图片 */
    #hero {
      padding: 80px 0 60px;
      background: linear-gradient(180deg, rgba(239, 246, 255, 0.7) 0%, rgba(248, 250, 252, 0) 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-glow-1 {
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
      top: -100px;
      left: 5%;
      pointer-events: none;
    }
    .hero-glow-2 {
      position: absolute;
      width: 450px;
      height: 450px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
      bottom: 0;
      right: 5%;
      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;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      color: #1e40af;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent-emerald);
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-p {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .hero-cta-btn-main {
      font-size: 1.1rem;
      padding: 14px 34px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }
    .hero-stat-card {
      background: #ffffff;
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #93c5fd;
    }
    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 关于与平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .intro-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }
    .intro-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .intro-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #bfdbfe;
    }
    .intro-card:hover::before {
      opacity: 1;
    }
    .intro-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: #dbeafe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 20px;
      font-weight: bold;
    }
    .intro-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .intro-text {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    /* 场景矩阵 / AIGC 服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 20px;
    }
    .service-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-box:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .service-tag {
      font-size: 0.75rem;
      background: #eff6ff;
      color: var(--primary);
      padding: 3px 10px;
      border-radius: var(--radius-full);
      font-weight: 600;
      align-self: flex-start;
      margin-bottom: 14px;
    }
    .service-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .service-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .service-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 一站式制作特性与流程 */
    .pipeline-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .pipeline-info {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .pipeline-item {
      display: flex;
      gap: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .pipeline-step-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #fff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .pipeline-item-content h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .pipeline-item-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .pipeline-visual-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }
    .pipeline-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
      background: #f1f5f9;
    }
    .pipeline-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }
    .pipeline-img-wrap:hover img {
      transform: scale(1.02);
    }

    /* 对比评测 - 5星 + 9.9分 */
    .eval-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .eval-header-summary {
      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: 24px;
    }
    .eval-score-card {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .eval-big-score {
      font-size: 3rem;
      font-weight: 800;
      color: #ea580c;
      line-height: 1;
    }
    .eval-stars-group {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .stars-icon {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }
    .eval-score-sub {
      font-size: 0.88rem;
      color: var(--text-light);
    }
    .table-responsive {
      width: 100%;
      overflow-x: auto;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .eval-table th,
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .eval-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }
    .eval-table td.highlight {
      background: #f0fdf4;
      font-weight: 600;
      color: #15803d;
    }
    .badge-check {
      display: inline-block;
      background: #dcfce7;
      color: #166534;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      margin-right: 6px;
    }

    /* 案例中心 */
    .case-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 0.3s ease;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-img-box {
      width: 100%;
      overflow: hidden;
      background: #f1f5f9;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-box img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 20px;
    }
    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .case-summary {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 需求匹配与表单 */
    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 860px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-label {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: #f8fafc;
      transition: all 0.2s ease;
      outline: none;
      font-family: inherit;
    }
    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    .form-textarea {
      resize: vertical;
      min-height: 110px;
    }

    /* 用户评论 */
    .review-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-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .review-quote {
      color: var(--text-muted);
      font-size: 0.93rem;
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }
    .review-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #e0e7ff;
      color: var(--primary);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }
    .review-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-meta p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      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: border-color 0.2s ease;
    }
    .faq-item.open {
      border-color: #93c5fd;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: transparent;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      text-align: left;
    }
    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding-bottom: 20px;
    }

    /* 资讯与百科 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .article-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .article-meta {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 12px;
    }

    /* 加盟代理与网络 */
    .agent-box {
      background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }
    .agent-info h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .agent-info p {
      font-size: 1.05rem;
      opacity: 0.9;
      line-height: 1.7;
      margin-bottom: 28px;
    }
    .agent-perks {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 28px;
    }
    .agent-perk-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.95rem;
      font-weight: 500;
    }
    .agent-qr-wrap {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: center;
      color: var(--text-main);
    }
    .agent-qr-wrap img {
      max-width: 180px;
      width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 12px;
    }

    /* 页脚 */
    footer.site-footer {
      width: 100%;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 24px;
      margin-top: 40px;
      color: var(--text-main);
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--text-main);
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }
    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 20px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
      font-size: 0.9rem;
    }
    .friend-links-title {
      font-weight: 700;
      color: var(--text-main);
      margin-right: 8px;
    }
    .footer-bottom-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.88rem;
      color: var(--text-light);
    }

    /* 悬浮小挂件 */
    .float-contact {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      font-size: 1.2rem;
      transition: all 0.25s ease;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid,
      .case-grid,
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .pipeline-wrapper,
      .agent-box {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .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 a {
        width: 100%;
        padding: 10px 14px;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .intro-grid,
      .case-grid,
      .review-grid,
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .eval-header-summary {
        flex-direction: column;
        align-items: flex-start;
      }
    }