:root {
      --primary: #ff007f;
      --primary-dark: #d6006b;
      --primary-light: #ffe6f2;
      --primary-soft: #fff0f7;
      --secondary: #ff3366;
      --accent: #ff0055;
      --text-main: #1f1f2e;
      --text-muted: #5c5c70;
      --bg-main: #faf8fa;
      --bg-card: #ffffff;
      --border-color: #ffd1e4;
      --shadow-sm: 0 4px 12px rgba(255, 0, 127, 0.08);
      --shadow-md: 0 10px 25px rgba(255, 0, 127, 0.12);
      --shadow-lg: 0 16px 36px rgba(255, 0, 127, 0.18);
      --radius: 12px;
      --transition: all 0.3s ease;
    }

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

    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-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .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: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-box .ai-page-logo {
      height: 40px;
      width: auto;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-menu {
      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: 600;
      color: var(--text-main);
      border-radius: 6px;
    }

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

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

    .btn-nav-portal {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff !important;
      padding: 9px 20px;
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(255, 0, 127, 0.3);
    }

    .btn-nav-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(255, 0, 127, 0.4);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .menu-toggle span {
      width: 24px;
      height: 2.5px;
      background-color: var(--primary);
      border-radius: 2px;
      transition: var(--transition);
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at top center, #ffe6f0 0%, #faf8fa 70%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: #11111a;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-title span {
      color: var(--primary);
      background: linear-gradient(135deg, #ff007f 0%, #ff3366 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

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

    .btn-main {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 50px;
      box-shadow: 0 6px 20px rgba(255, 0, 127, 0.35);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 0, 127, 0.45);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border: 2px solid var(--primary);
      padding: 12px 30px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 50px;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .stat-number {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 通用章节样式 */
    .section-py {
      padding: 70px 0;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
      background: var(--primary-soft);
      padding: 4px 14px;
      border-radius: 20px;
      border: 1px solid var(--border-color);
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #11111a;
      margin-bottom: 14px;
    }

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

    /* 平台介绍 */
    .platform-intro-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
      margin-bottom: 40px;
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .intro-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: #1a1a2e;
    }

    .intro-text p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.8;
    }

    .intro-features {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .intro-features li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .intro-features li::before {
      content: "✓";
      color: #ffffff;
      background: var(--primary);
      width: 20px;
      height: 20px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: bold;
    }

    .model-tags-wrapper {
      background: var(--primary-soft);
      padding: 24px;
      border-radius: 12px;
      border: 1px dashed var(--border-color);
    }

    .model-tags-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .model-tags-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-tag {
      background: #ffffff;
      color: var(--text-main);
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      border: 1px solid var(--border-color);
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
    }

    /* 服务与制作能力 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      font-weight: bold;
    }

    .service-card h4 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: #1a1a2e;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-mini-tag {
      font-size: 0.75rem;
      background: var(--primary-soft);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 行业方案与图文展示 */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-top: 30px;
    }

    .media-box {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }

    .media-box h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #1a1a2e;
    }

    .media-img-wrap {
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
    }

    .media-img-wrap img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      transition: var(--transition);
    }

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

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

    .process-step {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(255, 0, 127, 0.3);
    }

    .process-step h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .process-step p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 对比评测 */
    .evaluation-card {
      background: #ffffff;
      border-radius: 16px;
      border: 2px solid var(--primary);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

    .eval-score-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 20px;
      margin-bottom: 24px;
    }

    .eval-score-box {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }

    .eval-score-num {
      font-size: 3rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .eval-score-max {
      font-size: 1.1rem;
      color: var(--text-muted);
    }

    .eval-stars {
      color: #ff9900;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .comparison-table-wrapper {
      overflow-x: auto;
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 14px 16px;
      border-bottom: 1px solid #f0f0f5;
      font-size: 0.95rem;
    }

    .comparison-table th {
      background: var(--primary-soft);
      font-weight: 800;
      color: var(--text-main);
    }

    .comparison-table tr:hover td {
      background-color: #fff9fc;
    }

    .highlight-col {
      color: var(--primary);
      font-weight: 800;
    }

    /* 用户评论 */
    .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);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #ff9900;
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

    .review-content {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f5e6ee;
      padding-top: 14px;
    }

    .user-avatar-char {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }

    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
    }

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

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

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

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #1a1a2e;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: var(--transition);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #fffbfd;
    }

    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 需求匹配与表单 */
    .contact-container-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

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

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #e0d0d8;
      border-radius: 8px;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      background-color: #faf8fa;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(255, 0, 127, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      border: none;
      padding: 14px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 0, 127, 0.3);
      transition: var(--transition);
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 0, 127, 0.4);
    }

    .contact-info-wrap {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .contact-info-list li {
      margin-bottom: 12px;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-container {
      background: var(--primary-soft);
      padding: 20px;
      border-radius: 12px;
      text-align: center;
      border: 1px dashed var(--border-color);
      max-width: 220px;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      margin: 0 auto 10px;
      border-radius: 6px;
    }

    .qr-container span {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    /* 资讯与友情链接 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 14px;
      margin-bottom: 30px;
    }

    .article-pill {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 14px;
      border-radius: 8px;
      font-size: 0.88rem;
      font-weight: 600;
      text-align: center;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 60px;
      box-shadow: var(--shadow-sm);
    }

    .article-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .friend-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      text-align: center;
    }

    .friend-links-title {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .friend-links-list a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

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

    /* 底部 Footer */
    .site-footer {
      background: #19181f;
      color: #b0afb8;
      padding: 40px 0 24px;
      font-size: 0.88rem;
      border-top: 3px solid var(--primary);
    }

    .footer-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 18px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
    }

    .footer-links a {
      color: #e0dfe6;
    }

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

    .footer-copy {
      font-size: 0.82rem;
      color: #7a7985;
    }

    /* 悬浮客服 */
    .floating-service {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      font-size: 1.2rem;
      position: relative;
    }

    .floating-btn:hover {
      transform: scale(1.08);
    }

    .qr-popup {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 8px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      width: 150px;
      text-align: center;
    }

    .qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 4px;
      margin-bottom: 6px;
    }

    .qr-popup span {
      font-size: 0.75rem;
      color: var(--text-main);
      font-weight: bold;
    }

    .floating-btn:hover .qr-popup {
      display: block;
    }

    /* 响应式样式 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2rem;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .media-showcase-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .contact-container-grid {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        padding: 20px;
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 8px;
      }
      .nav-links li a {
        display: block;
        padding: 10px 16px;
        width: 100%;
      }
      .nav-actions {
        margin-top: 14px;
        width: 100%;
        justify-content: center;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
    }