/* 全局重置与亮紫绚烂配色 */
    :root {
      --primary: #7c3aed;
      --primary-light: #9333ea;
      --primary-soft: #f3e8ff;
      --primary-deep: #5b21b6;
      --accent: #ec4899;
      --accent-glow: rgba(168, 85, 247, 0.25);
      --bg-main: #faf7ff;
      --bg-card: #ffffff;
      --bg-alt: #f5f0ff;
      --text-main: #1e1b2e;
      --text-muted: #5b556e;
      --text-light: #89829f;
      --border-color: #ede5fa;
      --border-focus: #c084fc;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-sm: 0 4px 12px rgba(124, 58, 237, 0.05);
      --shadow-md: 0 10px 25px rgba(124, 58, 237, 0.08);
      --shadow-lg: 0 18px 40px rgba(124, 58, 237, 0.12);
      --shadow-hover: 0 22px 45px rgba(124, 58, 237, 0.18);
      --container-max: 1200px;
    }

    * {
      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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 15%, rgba(216, 180, 254, 0.28) 0%, transparent 40%),
        radial-gradient(circle at 90% 60%, rgba(244, 114, 182, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 50% 90%, rgba(192, 132, 252, 0.2) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      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-wrap .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-deep);
      letter-spacing: -0.5px;
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: var(--primary-soft);
    }

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

    .btn-nav-primary {
      padding: 9px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      border-radius: 99px;
      box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(124, 58, 237, 0.4);
      color: #fff;
    }

    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-deep);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 Hero 区域 (严格无图片) */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: var(--primary-soft);
      border: 1px solid var(--border-focus);
      border-radius: 99px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-deep);
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title-highlight {
      background: linear-gradient(135deg, #6d28d9 0%, #db2777 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-main {
      padding: 14px 36px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #7c3aed 0%, #d946ef 50%, #ec4899 100%);
      border-radius: 99px;
      box-shadow: 0 10px 28px rgba(124, 58, 237, 0.35);
      border: none;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-hero-main:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 14px 34px rgba(124, 58, 237, 0.45);
      color: #fff;
    }

    .btn-hero-outline {
      padding: 13px 32px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--primary-deep);
      background: #ffffff;
      border: 2px solid var(--border-focus);
      border-radius: 99px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

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

    /* 首屏数据指标卡片 (纯 CSS/文本) */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

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

    .metric-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      font-family: inherit;
    }

    .metric-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .metric-sub {
      font-size: 0.78rem;
      color: var(--text-light);
    }

    /* 模块通用样式 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-wrap-alt {
      background: rgba(245, 240, 255, 0.6);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-soft);
      border-radius: 99px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 12px;
      border: 1px solid rgba(168, 85, 247, 0.3);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 平台支持的大模型标签云 */
    .models-marquee-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

    .models-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 16px;
      text-align: center;
    }

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

    .model-chip {
      padding: 6px 14px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: 99px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      background: var(--primary-soft);
      color: var(--primary-deep);
      border-color: var(--border-focus);
      transform: scale(1.05);
    }

    /* 关于我们 / 平台核心能力 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .about-card-box {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .about-card-box h3 {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary-deep);
      margin-bottom: 16px;
    }

    .about-card-box p {
      font-size: 0.98rem;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.7;
    }

    .about-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 24px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .about-check-icon {
      width: 18px;
      height: 18px;
      background: #10b981;
      color: #fff;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      flex-shrink: 0;
    }

    .banner-preview-box {
      border-radius: var(--radius-xl);
      overflow: hidden;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      background: #fff;
    }

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

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary-soft) 0%, rgba(236, 72, 153, 0.15) 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      font-weight: 700;
    }

    .service-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-card-tag {
      font-size: 0.78rem;
      padding: 4px 10px;
      background: var(--bg-alt);
      border-radius: 6px;
      color: var(--primary-deep);
      font-weight: 600;
      align-self: flex-start;
    }

    /* 一站式制作场景展示库 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .scenario-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      transition: all 0.2s ease;
    }

    .scenario-item:hover {
      border-color: var(--primary);
      background: #fdfaff;
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }

    .scenario-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-deep);
      margin-bottom: 8px;
    }

    .scenario-desc {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例中心 (图文结合) */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

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

    .case-img-wrap {
      width: 100%;
      overflow: hidden;
      background: #ece6fa;
    }

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

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

    .case-content {
      padding: 22px;
      flex-grow: 1;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 对比评测板块 */
    .rating-highlight-box {
      background: linear-gradient(135deg, #7c3aed 0%, #9333ea 50%, #c026d3 100%);
      color: #ffffff;
      padding: 32px;
      border-radius: var(--radius-xl);
      text-align: center;
      margin-bottom: 36px;
      box-shadow: var(--shadow-lg);
    }

    .rating-badge {
      display: inline-block;
      padding: 4px 16px;
      background: rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(6px);
      border-radius: 99px;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .rating-score-large {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 10px;
    }

    .rating-stars {
      color: #fbbf24;
      font-size: 1.3rem;
      margin-bottom: 10px;
      letter-spacing: 4px;
    }

    .rating-subtitle {
      font-size: 1rem;
      opacity: 0.92;
      max-width: 650px;
      margin: 0 auto;
    }

    .compare-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .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-color);
      font-size: 0.92rem;
    }

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

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

    .compare-table td.highlight-col {
      background: rgba(243, 232, 255, 0.4);
      font-weight: 700;
      color: var(--primary-deep);
    }

    /* 标准流程时间线 */
    .process-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .step-num {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

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

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

    /* 客户评价板块 (6条完整评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

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

    .review-text {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .review-avatar-char {
      width: 42px;
      height: 42px;
      background: var(--primary-soft);
      color: var(--primary-deep);
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-role {
      font-size: 0.78rem;
      color: var(--text-light);
    }

    /* FAQ 折叠面板 (不少于 10 条) */
    .faq-container {
      max-width: 860px;
      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: border-color 0.2s ease;
    }

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

    .faq-question {
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 650;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      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: #faf7ff;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.65;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 16px 24px 20px;
      border-top: 1px dashed var(--border-color);
    }

    /* 加盟代理板块 */
    .agent-box {
      background: linear-gradient(135deg, #fbf7ff 0%, #f3e8ff 100%);
      border: 2px solid var(--border-focus);
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .agent-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 28px;
    }

    .agent-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .agent-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary-deep);
      margin-bottom: 8px;
    }

    .agent-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 文章列表与资讯 */
    .articles-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 16px;
    }

    .article-links-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 18px;
      background: var(--bg-alt);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 500;
    }

    .article-links-list li a:hover {
      background: var(--primary-soft);
      color: var(--primary-deep);
      transform: translateX(4px);
    }

    /* 需求匹配与联系我们表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
    }

    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-item-group {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 20px;
    }

    .info-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .info-row strong {
      color: var(--text-main);
      min-width: 80px;
    }

    .qr-container {
      margin-top: 24px;
      padding: 16px;
      background: var(--bg-alt);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .qr-container img {
      width: 90px;
      height: 90px;
      border-radius: 8px;
      background: #fff;
      padding: 4px;
    }

    .qr-desc h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .qr-desc p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .form-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 18px;
    }

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

    .form-control {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #fbf9ff;
      color: var(--text-main);
      transition: all 0.2s ease;
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
    }

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

    .btn-submit {
      width: 100%;
      padding: 13px;
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(124, 58, 237, 0.25);
      transition: all 0.25s ease;
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(124, 58, 237, 0.35);
    }

    /* 友情链接与页脚规范 */
    .friend-links-section {
      padding: 30px 0;
      border-top: 1px solid var(--border-color);
      background: #faf7ff;
    }

    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

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

    .friend-links-list a {
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 4px 10px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 4px;
    }

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

    .site-footer {
      background: #191428;
      color: #c4bcd8;
      padding: 48px 0 28px;
      border-top: 1px solid #2a223f;
    }

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

    .footer-brand h4 {
      font-size: 1.3rem;
      color: #ffffff;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.6;
      color: #9d94b8;
    }

    .footer-col h5 {
      font-size: 0.95rem;
      color: #ffffff;
      font-weight: 650;
      margin-bottom: 14px;
    }

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

    .footer-col ul li a {
      font-size: 0.85rem;
      color: #9d94b8;
    }

    .footer-col ul li a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid #2a223f;
      padding-top: 24px;
      text-align: center;
      font-size: 0.82rem;
      color: #797191;
    }

    /* 浮动组件：客服与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .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;
      color: var(--primary);
      font-size: 1.2rem;
      cursor: pointer;
      transition: all 0.2s ease;
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }

    .float-qr-pop {
      display: none;
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 140px;
      text-align: center;
    }

    .float-btn:hover .float-qr-pop {
      display: block;
    }

    .float-qr-pop img {
      width: 100%;
      border-radius: 4px;
    }

    .float-qr-pop span {
      display: block;
      font-size: 0.75rem;
      color: var(--text-main);
      margin-top: 4px;
      font-weight: 600;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-gallery-grid {
        grid-template-columns: 1fr;
      }
      .process-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-wrapper {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 16px 24px;
      }
      .nav-wrapper.active {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid var(--bg-alt);
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .services-grid,
      .scenarios-grid,
      .reviews-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .process-steps-grid {
        grid-template-columns: 1fr;
      }
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .rating-score-large {
        font-size: 2.8rem;
      }
    }