:root {
      --primary: #e11d48;
      --primary-dark: #be123c;
      --primary-deep: #881337;
      --primary-light: #f43f5e;
      --accent-soft: #ffe4e6;
      --accent-glow: #fdf2f8;
      --bg-light: #fffafb;
      --surface: #ffffff;
      --text-main: #0f172a;
      --text-body: #334155;
      --text-muted: #64748b;
      --border-color: #fecdd3;
      --border-subtle: #f1f5f9;
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(225, 29, 72, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(225, 29, 72, 0.15), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      background-image: 
        radial-gradient(at 0% 0%, rgba(254, 205, 211, 0.35) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(253, 242, 248, 0.6) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-body);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    /* 全局统一容器 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(254, 205, 211, 0.6);
      box-shadow: 0 4px 20px rgba(225, 29, 72, 0.04);
    }

    .nav-wrapper {
      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: 44px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-title-badge {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary-deep);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-title-badge span {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      font-size: 0.7rem;
      padding: 2px 6px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* 严格要求：gap必须为0 */
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      border-radius: var(--radius-sm);
    }

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

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.9rem;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3);
      border: 1px solid transparent;
      cursor: pointer;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
      background: linear-gradient(135deg, var(--primary-light), var(--primary));
    }

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

    .menu-toggle svg {
      width: 26px;
      height: 26px;
    }

    /* 区域通用样式 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-block.alt-bg {
      background: linear-gradient(180deg, rgba(255, 241, 242, 0.5) 0%, rgba(255, 255, 255, 0.8) 100%);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary);
      background: var(--accent-soft);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      border: 1px solid rgba(225, 29, 72, 0.2);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO 严格无图片纯CSS科技质感 */
    .hero-section {
      padding: 90px 0 80px 0;
      background: linear-gradient(145deg, #fff0f3 0%, #fff7f9 45%, #ffffff 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      top: -100px;
      left: 10%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(244, 63, 94, 0.18) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -80px;
      right: 5%;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, rgba(225, 29, 72, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .hero-pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      font-size: 0.88rem;
      color: var(--primary-dark);
      font-weight: 600;
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.2);
    }

    .hero-main-title {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-main-title em {
      font-style: normal;
      background: linear-gradient(120deg, var(--primary), #e11d48, #f43f5e);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      max-width: 820px;
      font-size: 1.18rem;
      color: var(--text-body);
      margin-bottom: 36px;
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 18px;
      margin-bottom: 48px;
    }

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 16px 36px;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      color: #ffffff !important;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      box-shadow: 0 10px 28px rgba(225, 29, 72, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 14px 32px rgba(225, 29, 72, 0.45);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 32px;
      background: #ffffff;
      color: var(--primary-dark);
      font-size: 1.05rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      border: 1.5px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      background: var(--accent-soft);
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      width: 100%;
      max-width: 1020px;
      margin-top: 10px;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.92);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

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

    .metric-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .feature-box {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-box:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }

    .feature-icon-badge {
      width: 52px;
      height: 52px;
      background: linear-gradient(135deg, var(--accent-soft), #fff);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
      font-size: 1.4rem;
      font-weight: bold;
    }

    .feature-box h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .feature-box p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 场景矩阵卡片 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: var(--surface);
      border: 1px solid #ffe4e6;
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .scenario-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .scenario-tag-item {
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      background: var(--accent-glow);
      color: var(--primary-dark);
      border-radius: var(--radius-full);
      border: 1px solid var(--border-color);
    }

    .scenario-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scenario-desc {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .scenario-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 14px;
      border-top: 1px dashed var(--border-subtle);
      font-size: 0.85rem;
      color: var(--primary-dark);
      font-weight: 600;
    }

    /* 一站式制作全流程卡片 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .workflow-item {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .workflow-step-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--accent-soft);
      line-height: 1;
      margin-bottom: 10px;
    }

    .workflow-item h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .workflow-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测表格与卡片 */
    .review-highlight-card {
      background: linear-gradient(135deg, #fff1f2 0%, #ffffff 100%);
      border: 2px solid var(--primary-light);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 36px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .review-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(225, 29, 72, 0.35);
    }

    .score-circle .big-num {
      font-size: 2rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle .total-num {
      font-size: 0.75rem;
      opacity: 0.9;
    }

    .review-text-info h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .star-ratings {
      color: #f59e0b;
      font-size: 1.2rem;
      margin-bottom: 4px;
    }

    .review-text-info p {
      font-size: 0.95rem;
      color: var(--text-body);
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #fff5f7;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table td.highlight-col {
      background: rgba(254, 205, 211, 0.15);
      font-weight: 600;
      color: var(--primary-dark);
    }

    /* 模型支持标签云与Token比价 */
    .models-cloud-wrapper {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 30px;
    }

    .model-pills-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-pill {
      display: inline-flex;
      align-items: center;
      padding: 7px 16px;
      background: #fff5f7;
      border: 1px solid #fecdd3;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 真实案例展示 (图片规范调用) */
    .case-media-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .case-img-container {
      width: 100%;
      height: 240px;
      background: #ffe4e6;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .case-card-body {
      padding: 22px;
    }

    .case-card-body h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-card-body p {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 用户真实评价 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-item-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .user-avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-deep));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .user-meta h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-text-quote {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
      font-style: normal;
    }

    /* 加盟代理与算力被动收入板块 */
    .partner-cta-card {
      background: linear-gradient(135deg, #be123c 0%, #e11d48 50%, #f43f5e 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 30px;
    }

    .partner-cta-content {
      max-width: 680px;
    }

    .partner-cta-content h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .partner-cta-content p {
      font-size: 1.05rem;
      opacity: 0.95;
      line-height: 1.7;
    }

    .btn-partner-white {
      padding: 15px 34px;
      background: #ffffff;
      color: var(--primary-dark) !important;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    .btn-partner-white:hover {
      background: var(--accent-glow);
      transform: translateY(-2px);
    }

    /* 需求匹配与表单板块 */
    .form-layout-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info-side h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .form-info-side p {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 24px;
    }

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

    .contact-fast-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .custom-submit-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

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

    .form-control-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control-group input,
    .form-control-group select,
    .form-control-group textarea {
      width: 100%;
      padding: 12px 16px;
      background: #fff;
      border: 1.5px solid #e2e8f0;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control-group input:focus,
    .form-control-group select:focus,
    .form-control-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
    }

    .btn-form-submit {
      padding: 14px 28px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3);
      transition: var(--transition);
    }

    .btn-form-submit:hover {
      background: linear-gradient(135deg, var(--primary-light), var(--primary));
      transform: translateY(-2px);
    }

    /* FAQ 折叠面板 (不少于10条) */
    .faq-accordion-wrapper {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 22px;
      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-question:hover {
      color: var(--primary);
      background: #fff9fa;
    }

    .faq-icon-arrow {
      width: 18px;
      height: 18px;
      transition: transform 0.28s ease;
      color: var(--primary);
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px 22px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      border-top: 1px dashed var(--border-subtle);
    }

    .faq-item.active .faq-answer {
      display: block;
      padding-top: 14px;
    }

    /* 最新文章与资讯列表 */
    .article-section-card {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .article-item-link {
      display: flex;
      align-items: center;
      padding: 14px 18px;
      background: #fff5f7;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
    }

    .article-item-link:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 微信客服与联系方式板块 */
    .contact-full-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .contact-card-box {
      background: var(--surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .qr-container {
      width: 140px;
      height: 140px;
      margin: 0 auto 16px auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px;
      background: #fff;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    /* 底部通用区域 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 30px 0;
      color: var(--text-body);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-brand-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-top: 12px;
    }

    .footer-links-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

    .footer-links-col ul li a {
      font-size: 0.88rem;
      color: var(--text-body);
    }

    .footer-links-col ul li a:hover {
      color: var(--primary);
    }

    .friendly-links-wrap {
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friendly-links-wrap h6 {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .friendly-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friendly-links-list a {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

    .footer-bottom-copy {
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-subtle);
      padding-top: 20px;
    }

    /* 浮动客服挂件 */
    .floating-kefu-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 18px rgba(225, 29, 72, 0.4);
      cursor: pointer;
      border: none;
      transition: var(--transition);
    }

    .floating-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-feature-grid,
      .scenarios-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-grid,
      .contact-full-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-layout-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .hero-main-title {
        font-size: 2rem;
      }
      .hero-metrics-grid,
      .about-feature-grid,
      .scenarios-grid,
      .workflow-grid,
      .case-media-grid,
      .reviews-grid,
      .article-links-grid,
      .contact-full-grid {
        grid-template-columns: 1fr;
      }
      .form-group-row {
        grid-template-columns: 1fr;
      }
      .partner-cta-card {
        padding: 30px 20px;
        text-align: center;
        justify-content: center;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }