/* CSS 全局变量：鲜绿夺目企业风 (Crisp Vibrant Emerald Theme) */
    :root {
      --primary-base: #059669;
      --primary-hover: #047857;
      --primary-light: #ecfdf5;
      --primary-glow: rgba(16, 185, 129, 0.2);
      --accent-bright: #10b981;
      --accent-lime: #84cc16;
      --bg-page: #f8fafc;
      --bg-surface: #ffffff;
      --bg-subtle: #f0fdf4;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-soft: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #10b981;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 10px 25px -3px rgba(16, 185, 129, 0.12), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --container-max: 1200px;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-pill: 9999px;
      --transition-normal: all 0.28s ease-in-out;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--primary-base);
      text-decoration: none;
      transition: var(--transition-normal);
    }
    a:hover {
      color: var(--primary-hover);
    }

    /* 统一居中容器 */
    .site-container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-box {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .brand-text-box h2 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.2;
    }
    .brand-text-box span {
      font-size: 0.75rem;
      color: var(--primary-base);
      font-weight: 600;
      display: block;
      letter-spacing: 0.5px;
    }

    /* 必须遵守：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-item a {
      display: block;
      padding: 8px 14px;
      color: var(--text-muted);
      font-size: 0.92rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      white-space: nowrap;
    }
    .nav-item a:hover {
      color: var(--primary-base);
      background: var(--primary-light);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn-header-primary {
      background: linear-gradient(135deg, var(--primary-base) 0%, var(--accent-bright) 100%);
      color: #ffffff !important;
      padding: 8px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      box-shadow: 0 3px 10px rgba(16, 185, 129, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .btn-header-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 5px 14px rgba(16, 185, 129, 0.45);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px 10px;
      font-size: 1.2rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Hero 首屏 - 纯文字、纯色几何、无任何图片 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.12) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(132, 204, 22, 0.08) 0%, transparent 40%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 72px 0 64px 0;
      position: relative;
      overflow: hidden;
    }
    .hero-badge-wrap {
      display: flex;
      justify-content: center;
      margin-bottom: 20px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary-light);
      border: 1px solid rgba(16, 185, 129, 0.3);
      color: var(--primary-hover);
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      font-size: 0.85rem;
      font-weight: 600;
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--accent-bright);
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
    }
    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }
    /* H1 控制在20字以内 */
    .hero-title {
      font-size: clamp(2rem, 4.2vw, 3.2rem);
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.22;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title .highlight-text {
      color: var(--primary-base);
      position: relative;
      display: inline-block;
    }
    .hero-desc {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 800px;
      margin: 0 auto 36px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }
    /* 首屏醒目访问官网按钮 */
    .btn-hero-official {
      background: linear-gradient(135deg, #059669 0%, #10b981 100%);
      color: #ffffff !important;
      font-size: 1.15rem;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: var(--radius-pill);
      box-shadow: 0 8px 24px rgba(16, 185, 129, 0.38);
      border: 1px solid rgba(255, 255, 255, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }
    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(16, 185, 129, 0.5);
    }
    .btn-hero-secondary {
      background: #ffffff;
      color: var(--text-main);
      font-size: 1.05rem;
      font-weight: 600;
      padding: 14px 30px;
      border-radius: var(--radius-pill);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-hero-secondary:hover {
      border-color: var(--primary-base);
      color: var(--primary-base);
      background: var(--primary-light);
    }

    /* 首屏指标卡片 (纯CSS数据方阵，无图片) */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 1000px;
      margin: 0 auto;
    }
    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      text-align: center;
      transition: var(--transition-normal);
      position: relative;
      overflow: hidden;
    }
    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-lime), var(--primary-base));
    }
    .stat-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(16, 185, 129, 0.4);
    }
    .stat-number {
      font-size: 1.85rem;
      font-weight: 900;
      color: var(--primary-base);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .stat-label {
      font-size: 0.88rem;
      color: var(--text-soft);
      font-weight: 500;
    }

    /* 通用区块排版 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap-subtle {
      background-color: #f1f8f4;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary-base);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
      border: 1px solid rgba(16, 185, 129, 0.2);
    }
    .section-title {
      font-size: clamp(1.6rem, 2.5vw, 2.3rem);
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 聚合支持模型芯片墙 */
    .models-chip-flow {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 24px;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 7px 16px;
      border-radius: var(--radius-pill);
      font-size: 0.86rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-normal);
    }
    .model-chip:hover {
      border-color: var(--primary-base);
      color: var(--primary-base);
      background: var(--primary-light);
      transform: translateY(-2px);
    }
    .model-chip-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent-bright);
    }

    /* 平台核心能力卡片 */
    .feature-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-normal);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent-bright);
    }
    .feature-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary-base);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      border: 1px solid rgba(16, 185, 129, 0.25);
    }
    .feature-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 场景化智能体服务矩阵网格 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition-normal);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .scenario-card:hover {
      border-color: var(--primary-base);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .scenario-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }
    .scenario-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .scenario-badge {
      background: var(--primary-light);
      color: var(--primary-hover);
      font-size: 0.76rem;
      font-weight: 600;
      padding: 3px 9px;
      border-radius: var(--radius-pill);
    }
    .scenario-desc {
      font-size: 0.91rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }
    .scenario-footer {
      font-size: 0.84rem;
      color: var(--primary-base);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 对比评测卡片与表格 */
    .rating-banner {
      background: linear-gradient(135deg, #065f46 0%, #047857 50%, #059669 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 36px;
      box-shadow: 0 12px 30px rgba(5, 150, 105, 0.25);
    }
    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .score-large {
      font-size: 3.6rem;
      font-weight: 900;
      line-height: 1;
      color: #a7f3d0;
    }
    .score-text-block h3 {
      font-size: 1.4rem;
      margin-bottom: 4px;
      color: #ffffff;
    }
    .score-stars {
      color: #facc15;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }
    .rating-highlight-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .rating-highlight-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: #f0fdf4;
    }

    .table-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.93rem;
    }
    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .brand-col {
      background: var(--primary-light);
      font-weight: 600;
      color: var(--primary-hover);
    }
    .badge-win {
      background: #10b981;
      color: #ffffff;
      font-size: 0.76rem;
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      margin-left: 6px;
    }

    /* 标准制作流程 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .process-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .process-step-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: rgba(16, 185, 129, 0.25);
      margin-bottom: 12px;
      line-height: 1;
    }
    .process-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .process-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 图文素材展示区 (非首屏，严格按要求使用指定媒体) */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-top: 32px;
    }
    .media-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #ffffff;
      box-shadow: var(--shadow-sm);
    }
    .media-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }
    .media-img-box:hover img {
      transform: scale(1.02);
    }

    /* 客户真实评价 */
    .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-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }
    .review-user-info h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-user-info span {
      font-size: 0.82rem;
      color: var(--text-soft);
    }
    .review-star {
      color: #f59e0b;
      font-size: 0.95rem;
    }
    .review-body {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      font-style: italic;
    }

    /* FAQ 手风琴折叠 */
    .faq-wrapper {
      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;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-normal);
    }
    .faq-item.active {
      border-color: var(--primary-base);
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      color: var(--primary-base);
      transition: transform 0.24s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.7;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 表单与需求匹配 */
    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 820px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .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: #f8fafc;
      transition: var(--transition-normal);
      outline: none;
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--border-focus);
      background: #ffffff;
      box-shadow: 0 0 0 3px var(--primary-glow);
    }
    .form-submit-btn {
      width: 100%;
      background: linear-gradient(135deg, var(--primary-base) 0%, var(--accent-bright) 100%);
      color: #ffffff;
      border: none;
      padding: 14px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
      transition: var(--transition-normal);
    }
    .form-submit-btn:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 资讯与百科文章 */
    .articles-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .articles-list {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .article-link-item a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      color: var(--text-main);
      font-size: 0.93rem;
    }
    .article-link-item a:hover {
      border-color: var(--primary-base);
      background: var(--primary-light);
      color: var(--primary-base);
    }

    /* 加盟代理与被动收益专区 */
    .partner-banner {
      background: #ffffff;
      border: 2px dashed var(--accent-bright);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }
    .partner-info {
      max-width: 650px;
    }
    .partner-info h3 {
      font-size: 1.4rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .partner-info p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    /* 友情链接 */
    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-top: 24px;
    }
    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-right: 8px;
    }
    .friend-links-wrap a {
      font-size: 0.86rem;
      color: var(--text-muted);
      padding: 4px 10px;
      background: #f1f5f9;
      border-radius: var(--radius-sm);
    }
    .friend-links-wrap a:hover {
      color: var(--primary-base);
      background: var(--primary-light);
    }

    /* 页脚 (规范：显式指定深色文字，无空白脱节) */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      margin-top: 40px;
      color: var(--text-main);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 36px;
    }
    .footer-col h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.88rem;
    }
    .footer-links-list a:hover {
      color: var(--primary-base);
    }
    .footer-qr-card {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #f8fafc;
      padding: 12px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }
    .footer-qr-img {
      width: 76px;
      height: 76px;
      object-fit: cover;
      border-radius: 4px;
    }
    .footer-qr-info {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.4;
    }
    .footer-bottom-bar {
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.84rem;
      color: var(--text-soft);
    }

    /* 浮动工具栏 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--primary-base);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.15rem;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition-normal);
      text-decoration: none;
    }
    .floating-btn:hover {
      background: var(--primary-base);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .feature-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .header-actions {
        display: none;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .feature-grid-4 {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .process-grid {
        grid-template-columns: 1fr;
      }
      .media-showcase-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .articles-list {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        padding: 24px;
      }
      .form-wrapper {
        padding: 24px 18px;
      }
    }