:root {
      --primary: #4a5cf6;
      --primary-light: #707ffb;
      --secondary: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-lime: #10b981;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-glass: rgba(255, 255, 255, 0.82);
      --border-color: rgba(226, 232, 240, 0.8);
      --iridescent-gradient: linear-gradient(135deg, rgba(238, 242, 255, 0.95) 0%, rgba(253, 242, 248, 0.9) 35%, rgba(236, 253, 245, 0.95) 70%, rgba(240, 249, 255, 0.9) 100%);
      --iridescent-border: linear-gradient(90deg, #60a5fa, #c084fc, #f472b6, #38bdf8);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -8px rgba(79, 70, 229, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
    }

    * {
      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", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      background-image: 
        radial-gradient(at 0% 0%, rgba(199, 210, 254, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 20%, rgba(251, 207, 232, 0.25) 0px, transparent 50%),
        radial-gradient(at 50% 60%, rgba(207, 250, 254, 0.25) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(254, 215, 170, 0.2) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: all 0.3s ease;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      background: linear-gradient(135deg, #e0e7ff, #fce7f3);
      color: #4338ca;
      font-weight: 600;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      color: #334155;
      text-decoration: none;
      font-size: 0.94rem;
      font-weight: 500;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(74, 92, 246, 0.08);
    }
    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-hologram {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff;
      background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
      transition: all 0.3s ease;
      border: 1px solid rgba(255, 255, 255, 0.4);
      cursor: pointer;
    }
    .btn-hologram:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(236, 72, 153, 0.4);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #334155;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-full);
      text-decoration: none;
      transition: all 0.2s ease;
      cursor: pointer;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #f8fafc;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      padding: 8px;
      cursor: pointer;
      color: #1e293b;
    }

    /* 镭射幻彩通风格装饰 */
    .laser-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(192, 132, 252, 0.4);
      box-shadow: 0 2px 10px rgba(192, 132, 252, 0.15);
      font-size: 0.82rem;
      font-weight: 600;
      color: #4338ca;
      margin-bottom: 20px;
    }
    .laser-pill {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(45deg, #06b6d4, #ec4899);
      animation: pulse 2s infinite;
    }

    /* 首屏 Hero（无图片，纯科技与镭射幻彩设计） */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
    }
    .hero-inner {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }
    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      letter-spacing: -1px;
      margin-bottom: 22px;
    }
    .hero-title span.laser-text {
      background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 40%, #ec4899 80%, #06b6d4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline;
    }
    .hero-subtitle {
      font-size: 1.18rem;
      color: #475569;
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-action-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }
    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      color: #ffffff;
      background: linear-gradient(135deg, #4f46e5 0%, #9333ea 50%, #ec4899 100%);
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(124, 58, 237, 0.35);
      border: 1px solid rgba(255, 255, 255, 0.3);
      transition: all 0.3s;
    }
    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 15px 30px rgba(236, 72, 153, 0.45);
    }
    .btn-hero-secondary {
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      color: #334155;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      text-decoration: none;
      transition: all 0.2s;
    }
    .btn-hero-secondary:hover {
      border-color: #6366f1;
      color: #4f46e5;
      background: #f8fafc;
    }

    /* 状态与亮点指示板 */
    .hero-stats-panel {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .stat-card {
      background: var(--bg-glass);
      backdrop-filter: blur(12px);
      padding: 22px 18px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.9);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.3s, box-shadow 0.3s;
    }
    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(192, 132, 252, 0.5);
    }
    .stat-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: #1e1b4b;
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 模型矩阵胶囊标签流 */
    .model-pills-bar {
      margin-top: 40px;
      padding: 20px;
      background: rgba(255, 255, 255, 0.7);
      border-radius: var(--radius-md);
      border: 1px solid rgba(226, 232, 240, 0.9);
    }
    .model-pills-title {
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #64748b;
      margin-bottom: 12px;
      text-align: center;
    }
    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }
    .model-tag {
      font-size: 0.82rem;
      padding: 5px 12px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-full);
      color: #334155;
      font-weight: 500;
      transition: all 0.2s;
    }
    .model-tag:hover {
      border-color: #a855f7;
      color: #7c3aed;
      background: #faf5ff;
    }

    /* 通用章节规范 */
    .section {
      padding: 75px 0;
      position: relative;
    }
    .section-alt {
      background: rgba(241, 245, 249, 0.6);
      border-top: 1px solid #edf2f7;
      border-bottom: 1px solid #edf2f7;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px;
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .section-header p {
      font-size: 1.05rem;
      color: #64748b;
      line-height: 1.7;
    }

    /* 卡片与网格通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--iridescent-border);
      opacity: 0;
      transition: opacity 0.3s;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .card-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 0.75rem;
      padding: 3px 10px;
      background: #eff6ff;
      color: #2563eb;
      border-radius: var(--radius-full);
      font-weight: 600;
      margin-bottom: 14px;
    }
    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 12px;
    }
    .card-desc {
      font-size: 0.94rem;
      color: #475569;
      line-height: 1.65;
      flex-grow: 1;
      margin-bottom: 18px;
    }
    .card-footer-info {
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 对比评测卡片与表格 */
    .benchmark-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }
    .score-summary-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #f0f9ff 0%, #faf5ff 50%, #fdf2f8 100%);
      padding: 24px 32px;
      border-radius: var(--radius-md);
      border: 1px solid #e0e7ff;
      margin-bottom: 30px;
    }
    .score-left h3 {
      font-size: 1.4rem;
      color: #1e1b4b;
      margin-bottom: 6px;
    }
    .score-left p {
      color: #64748b;
      font-size: 0.95rem;
    }
    .score-right {
      text-align: right;
    }
    .score-num {
      font-size: 2.8rem;
      font-weight: 900;
      color: #4338ca;
      line-height: 1;
    }
    .score-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      margin-top: 4px;
    }
    .benchmark-table-wrapper {
      overflow-x: auto;
    }
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }
    .benchmark-table th, 
    .benchmark-table td {
      padding: 16px 18px;
      border-bottom: 1px solid #e2e8f0;
    }
    .benchmark-table th {
      background: #f8fafc;
      color: #334155;
      font-weight: 700;
    }
    .highlight-col {
      background: #f5f3ff;
      font-weight: 600;
      color: #4338ca;
    }

    /* 流程步骤 */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-number {
      font-size: 2rem;
      font-weight: 900;
      color: #cbd5e1;
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-item:hover .step-number {
      color: #818cf8;
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.9rem;
      color: #64748b;
      line-height: 1.6;
    }

    /* 素材图片与案例展示区（首屏外） */
    .showcase-banner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }
    .banner-img-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid #e2e8f0;
      background: #fff;
    }
    .banner-img-card img {
      width: 100%;
      height: 210px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .banner-img-card:hover img {
      transform: scale(1.04);
    }
    .media-card-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: stretch;
    }
    .media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 16px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }
    .media-card img {
      border-radius: var(--radius-sm);
      width: 100%;
      height: 240px;
      object-fit: cover;
    }
    .media-meta {
      padding: 14px 4px 4px;
    }
    .media-meta h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }
    .media-meta p {
      font-size: 0.88rem;
      color: #64748b;
    }

    /* 用户评论 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .user-content {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .user-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }
    .user-info h4 {
      font-size: 0.96rem;
      color: #0f172a;
      font-weight: 700;
    }
    .user-info span {
      font-size: 0.82rem;
      color: #64748b;
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item.active {
      border-color: #818cf8;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      font-size: 1.02rem;
      color: #1e293b;
      user-select: none;
    }
    .faq-question:hover {
      color: #4f46e5;
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: #64748b;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: #4f46e5;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fafafa;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 22px 20px;
    }
    .faq-answer p {
      font-size: 0.94rem;
      color: #475569;
      line-height: 1.7;
    }

    /* 表单与需求匹配 */
    .contact-card-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
    }
    .contact-info-panel {
      background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid #e2e8f0;
    }
    .contact-info-panel h3 {
      font-size: 1.4rem;
      color: #0f172a;
      margin-bottom: 14px;
    }
    .contact-info-panel p {
      font-size: 0.92rem;
      color: #64748b;
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .contact-detail-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }
    .contact-detail-list li {
      font-size: 0.92rem;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .qr-container {
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
      border: 1px solid #cbd5e1;
      text-align: center;
    }
    .qr-container img {
      width: 130px;
      height: 130px;
      display: block;
      margin-bottom: 6px;
    }
    .qr-container span {
      font-size: 0.8rem;
      color: #64748b;
      font-weight: 500;
    }
    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 0.9rem;
      font-weight: 600;
      color: #334155;
    }
    .form-group input, 
    .form-group select, 
    .form-group textarea {
      width: 100%;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid #cbd5e1;
      font-size: 0.95rem;
      color: #1e293b;
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .form-group input:focus, 
    .form-group select:focus, 
    .form-group textarea:focus {
      border-color: #6366f1;
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    .btn-submit-form {
      padding: 14px;
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #4f46e5, #7c3aed);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.3s;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    }
    .btn-submit-form:hover {
      opacity: 0.95;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
    }

    /* 资讯文章与知识中心 */
    .article-links-container {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-links-list li {
      border-bottom: 1px dashed #f1f5f9;
      padding-bottom: 10px;
    }
    .article-links-list li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .article-link-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      text-decoration: none;
      color: #1e293b;
      font-size: 0.95rem;
      font-weight: 500;
      transition: color 0.2s;
    }
    .article-link-item:hover {
      color: #4f46e5;
    }
    .article-date {
      font-size: 0.85rem;
      color: #94a3b8;
    }

    /* 加盟代理与收益板块 */
    .partner-banner {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      box-shadow: var(--shadow-lg);
    }
    .partner-content h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .partner-content p {
      font-size: 1rem;
      color: #cbd5e1;
      max-width: 680px;
      line-height: 1.7;
    }
    .partner-btn-wrap {
      flex-shrink: 0;
    }
    .btn-partner {
      padding: 14px 30px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f172a;
      background: linear-gradient(135deg, #fef08a, #fed7aa);
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(254, 240, 138, 0.4);
      display: inline-block;
      transition: transform 0.2s;
    }
    .btn-partner:hover {
      transform: scale(1.05);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 50px 0 30px;
      color: #475569;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      color: #64748b;
      margin-top: 12px;
      line-height: 1.6;
    }
    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }
    .footer-nav {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-nav a {
      color: #64748b;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }
    .footer-nav a:hover {
      color: var(--primary);
    }
    .friend-links-box {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friend-links-box span {
      font-size: 0.88rem;
      font-weight: 700;
      color: #334155;
      margin-right: 12px;
    }
    .friend-links-box a {
      color: #64748b;
      text-decoration: none;
      font-size: 0.88rem;
      margin-right: 16px;
      display: inline-block;
      transition: color 0.2s;
    }
    .friend-links-box a:hover {
      color: var(--primary);
    }
    .copyright-bar {
      border-top: 1px solid #f1f5f9;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: #94a3b8;
    }

    /* 浮动客服栏 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .dock-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #4f46e5;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.3s;
      position: relative;
    }
    .dock-btn:hover {
      background: #4f46e5;
      color: #ffffff;
      transform: translateY(-2px);
    }
    .dock-qr-popup {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #e2e8f0;
      display: none;
      text-align: center;
      width: 140px;
    }
    .dock-btn:hover .dock-qr-popup {
      display: block;
    }
    .dock-qr-popup img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
    }
    .dock-qr-popup span {
      font-size: 0.75rem;
      color: #475569;
      display: block;
      margin-top: 4px;
    }

    /* 关键帧动画 */
    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.2); opacity: 0.7; }
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-stats-panel {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-card-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid #e2e8f0;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.95rem;
      }
      .hero-subtitle {
        font-size: 1rem;
      }
      .grid-3, .grid-4, .testimonial-grid, .showcase-banner-grid, .media-card-grid {
        grid-template-columns: 1fr;
      }
      .steps-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .partner-banner {
        flex-direction: column;
        text-align: center;
        padding: 28px;
      }
      .score-summary-card {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .score-right {
        text-align: center;
      }
      .nav-action .btn-outline {
        display: none;
      }
    }