* { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: #f5f9ff;
      background-image: radial-gradient(circle at 10% 20%, rgba(0, 102, 255, 0.03) 0%, transparent 40%),
                        radial-gradient(circle at 90% 70%, rgba(0, 153, 255, 0.04) 0%, transparent 40%);
      color: #1a2a3a;
      line-height: 1.6;
    }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; height: auto; display: block; }
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 顶部导航 */
    .header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 102, 255, 0.1);
      box-shadow: 0 4px 20px rgba(0, 60, 160, 0.04);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 70px;
      flex-wrap: wrap;
      gap: 8px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .brand img { width: 36px; height: 36px; border-radius: 8px; object-fit: contain; }
    .brand-text {
      font-size: 1.35rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: #0a2a6b;
    }
    .brand-text span { color: #1677ff; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
      list-style: none;
    }
    .nav-links li a {
      padding: 6px 12px;
      font-size: 0.92rem;
      color: #1a3a5c;
      border-radius: 20px;
      transition: background 0.25s, color 0.25s;
      font-weight: 500;
      white-space: nowrap;
    }
    .nav-links li a:hover { background: #e8f0fe; color: #0a4fcc; }
    .nav-cta {
      background: linear-gradient(135deg, #1677ff, #0050d0);
      color: #fff !important;
      padding: 8px 20px !important;
      border-radius: 30px !important;
      font-weight: 600 !important;
      box-shadow: 0 6px 14px rgba(22, 119, 255, 0.3);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 20px rgba(22, 119, 255, 0.4); background: linear-gradient(135deg, #3a8bff, #0a5fd9) !important; }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      color: #0a2a6b;
      cursor: pointer;
      padding: 4px 8px;
    }
    /* Hero 首屏 (无图片) */
    .hero {
      position: relative;
      padding: 80px 0 70px;
      background: linear-gradient(145deg, #0a2a6b 0%, #0f3d8c 45%, #1677ff 100%);
      color: #fff;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -30%;
      left: -10%;
      width: 60%;
      height: 120%;
      background: radial-gradient(circle, rgba(0, 200, 255, 0.18) 0%, transparent 70%);
      animation: floatGlow 12s ease-in-out infinite alternate;
    }
    .hero::after {
      content: '';
      position: absolute;
      bottom: -20%;
      right: -5%;
      width: 50%;
      height: 100%;
      background: radial-gradient(circle, rgba(120, 180, 255, 0.15) 0%, transparent 70%);
      animation: floatGlow2 15s ease-in-out infinite alternate;
    }
    @keyframes floatGlow { 0% { transform: translate(0,0) scale(1); opacity:0.6; } 100% { transform: translate(4%,6%) scale(1.1); opacity:1; } }
    @keyframes floatGlow2 { 0% { transform: translate(0,0) scale(1); opacity:0.4; } 100% { transform: translate(-5%,-4%) scale(1.2); opacity:0.9; } }
    .hero .container { position: relative; z-index: 2; }
    .hero-content { max-width: 780px; margin: 0 auto; text-align: center; }
    .hero-badge {
      display: inline-block;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 6px 18px;
      border-radius: 40px;
      font-size: 0.85rem;
      letter-spacing: 1px;
      margin-bottom: 24px;
      backdrop-filter: blur(4px);
    }
    .hero h1 {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 20px;
      text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }
    .hero h1 span { color: #9fd0ff; }
    .hero-desc {
      font-size: 1.15rem;
      margin-bottom: 30px;
      opacity: 0.9;
      max-width: 620px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-btns {
      display: flex;
      gap: 18px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }
    .btn-primary {
      display: inline-block;
      background: #fff;
      color: #0a2a6b;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: 50px;
      transition: all 0.3s ease;
      box-shadow: 0 8px 22px rgba(0, 0, 0, 0.15);
      border: none;
      cursor: pointer;
      font-size: 1rem;
    }
    .btn-primary:hover { background: #f0f7ff; transform: translateY(-2px); box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2); }
    .btn-outline {
      display: inline-block;
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255, 255, 255, 0.6);
      padding: 14px 34px;
      border-radius: 50px;
      font-weight: 600;
      transition: all 0.3s;
    }
    .btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; transform: translateY(-2px); }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 700px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-stats .stat-item {
      background: rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 16px 8px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(4px);
    }
    .stat-num { font-size: 1.8rem; font-weight: 800; color: #fff; line-height: 1.2; }
    .stat-label { font-size: 0.82rem; opacity: 0.8; margin-top: 4px; }
    /* 通用 section */
    .section { padding: 70px 0; }
    .section-header { text-align: center; margin-bottom: 50px; }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 700;
      color: #0a2a6b;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-header p { color: #4a6a8a; max-width: 640px; margin: 0 auto; font-size: 1.05rem; }
    .section-header .accent-line {
      display: block;
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, #1677ff, #6aa9ff);
      border-radius: 4px;
      margin: 12px auto 0;
    }
    /* 关于我们 / 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-text h3 { font-size: 1.8rem; color: #0a2a6b; margin-bottom: 18px; }
    .about-text p { color: #3a5a7a; margin-bottom: 16px; font-size: 1rem; }
    .about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; list-style: none; margin-top: 10px; }
    .about-features li {
      display: flex; align-items: center; gap: 8px;
      font-size: 0.92rem; color: #1a3a5c; font-weight: 500;
    }
    .about-features li::before { content: "✦"; color: #1677ff; font-weight: 700; }
    .about-visual {
      background: linear-gradient(135deg, #e8f2ff, #d4e5ff);
      border-radius: 28px;
      padding: 30px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      align-items: center;
      min-height: 260px;
    }
    .about-visual .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
    .about-visual .tag-cloud span {
      background: #fff;
      border-radius: 40px;
      padding: 8px 16px;
      font-size: 0.85rem;
      color: #0a4fcc;
      font-weight: 500;
      box-shadow: 0 4px 12px rgba(0, 90, 200, 0.08);
      transition: transform 0.2s;
    }
    .about-visual .tag-cloud span:hover { transform: translateY(-3px); }
    /* AIGC服务卡片 */
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .service-card {
      background: #fff;
      border-radius: 20px;
      padding: 28px 22px;
      box-shadow: 0 10px 30px rgba(0, 60, 160, 0.06);
      border: 1px solid rgba(0, 102, 255, 0.06);
      transition: transform 0.3s, box-shadow 0.3s;
    }
    .service-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0, 60, 160, 0.12); }
    .service-icon {
      width: 48px; height: 48px;
      background: linear-gradient(135deg, #e0edff, #c7dcff);
      border-radius: 14px;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 18px;
      color: #1677ff;
    }
    .service-card h3 { font-size: 1.15rem; margin-bottom: 8px; color: #0a2a6b; }
    .service-card p { font-size: 0.9rem; color: #4a6a8a; }
    /* 一站式制作 / 流程步骤 */
    .steps-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .step-item { text-align: center; position: relative; }
    .step-num {
      width: 52px; height: 52px; border-radius: 50%;
      background: linear-gradient(135deg, #1677ff, #4a9aff);
      color: #fff; font-weight: 700; font-size: 1.3rem;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 8px 18px rgba(22, 119, 255, 0.3);
    }
    .step-item h3 { font-size: 1rem; margin-bottom: 6px; color: #0a2a6b; }
    .step-item p { font-size: 0.85rem; color: #4a6a8a; }
    /* 行业方案 & 案例中心 */
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .case-card {
      border-radius: 22px; overflow: hidden; background: #fff;
      box-shadow: 0 10px 24px rgba(0, 40, 120, 0.07);
      transition: transform 0.3s;
    }
    .case-card:hover { transform: translateY(-5px); }
    .case-img-wrap { aspect-ratio: 16 / 10; overflow: hidden; background: #e6f0ff; }
    .case-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
    .case-info { padding: 20px; }
    .case-info h3 { font-size: 1.05rem; margin-bottom: 6px; color: #0a2a6b; }
    .case-info p { font-size: 0.85rem; color: #4a6a8a; }
    /* 对比评测 */
    .compare-wrap {
      background: #fff; border-radius: 28px; padding: 40px 32px;
      box-shadow: 0 16px 40px rgba(0, 60, 160, 0.08);
      border: 1px solid rgba(0, 102, 255, 0.08);
    }
    .compare-score { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 30px; flex-wrap: wrap; }
    .score-big { font-size: 3.4rem; font-weight: 800; color: #1677ff; line-height: 1; }
    .score-big small { font-size: 1.2rem; color: #8a9aad; font-weight: 400; }
    .stars { color: #ffb800; font-size: 1.8rem; letter-spacing: 4px; }
    .compare-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
    .compare-table th, .compare-table td {
      padding: 14px 16px; text-align: left; border-bottom: 1px solid #eaf0f8;
    }
    .compare-table th { background: #f3f8ff; color: #0a2a6b; font-weight: 600; }
    .compare-table td:last-child { font-weight: 600; color: #1677ff; }
    .table-scroll { overflow-x: auto; }
    /* 客户评论 */
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .review-card {
      background: #fff; border-radius: 20px; padding: 22px;
      box-shadow: 0 8px 22px rgba(0, 40, 120, 0.06);
      transition: transform 0.25s;
    }
    .review-card:hover { transform: translateY(-4px); }
    .review-user { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
    .avatar {
      width: 44px; height: 44px; border-radius: 50%;
      background: linear-gradient(135deg, #d0e3ff, #a6c8ff);
      display: flex; align-items: center; justify-content: center;
      font-weight: 700; color: #0a3a7a; font-size: 1.1rem;
    }
    .review-user strong { display: block; font-size: 0.95rem; color: #0a2a6b; }
    .review-user span { font-size: 0.78rem; color: #7a8a9c; }
    .review-stars { color: #ffb800; margin-bottom: 8px; font-size: 0.9rem; }
    .review-text { font-size: 0.88rem; color: #3a5a7a; line-height: 1.7; }
    /* 表单 */
    .form-wrap {
      background: #fff; border-radius: 28px; padding: 40px;
      box-shadow: 0 16px 40px rgba(0, 60, 160, 0.08);
      max-width: 820px; margin: 0 auto;
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .form-group { display: flex; flex-direction: column; gap: 6px; }
    .form-group.full { grid-column: 1 / -1; }
    .form-group label { font-size: 0.9rem; font-weight: 600; color: #0a2a6b; }
    .form-group input, .form-group select, .form-group textarea {
      padding: 12px 16px; border-radius: 12px; border: 1px solid #d0e0f0;
      font-size: 0.95rem; font-family: inherit; background: #fafdff;
      transition: border 0.2s, box-shadow 0.2s;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      outline: none; border-color: #1677ff; box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.1);
    }
    .form-group textarea { resize: vertical; min-height: 100px; }
    .submit-btn {
      background: linear-gradient(135deg, #1677ff, #0050d0);
      color: #fff; border: none; padding: 14px 40px; border-radius: 40px;
      font-size: 1rem; font-weight: 600; cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 8px 18px rgba(22, 119, 255, 0.3);
    }
    .submit-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 26px rgba(22, 119, 255, 0.4); }
    /* FAQ */
    .faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
      background: #fff; border-radius: 16px; border: 1px solid #e2edfc;
      overflow: hidden; transition: box-shadow 0.2s;
    }
    .faq-item:hover { box-shadow: 0 6px 18px rgba(0, 40, 120, 0.06); }
    .faq-question {
      width: 100%; text-align: left; padding: 18px 24px;
      background: none; border: none; font-size: 1rem; font-weight: 600;
      color: #0a2a6b; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
      font-family: inherit;
    }
    .faq-question span { transition: transform 0.3s; font-size: 1.2rem; color: #1677ff; }
    .faq-answer { padding: 0 24px 18px; font-size: 0.92rem; color: #3a5a7a; line-height: 1.7; display: none; }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-question span { transform: rotate(45deg); }
    /* 资讯 / 文章列表 */
    .article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .article-card {
      background: #fff; border-radius: 18px; padding: 22px;
      box-shadow: 0 6px 18px rgba(0, 40, 120, 0.05);
      border-left: 4px solid #1677ff;
      transition: transform 0.2s;
    }
    .article-card:hover { transform: translateX(4px); }
    .article-card h3 { font-size: 1rem; color: #0a2a6b; margin-bottom: 6px; }
    .article-card p { font-size: 0.85rem; color: #5a7a9a; }
    .article-card a { display: inline-block; margin-top: 10px; font-size: 0.85rem; color: #1677ff; font-weight: 600; }
    /* 友情链接 & 服务网络 */
    .links-cloud { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
    .links-cloud a {
      background: #fff; padding: 8px 18px; border-radius: 40px;
      font-size: 0.85rem; color: #1a3a5c; border: 1px solid #dce9ff;
      transition: all 0.2s;
    }
    .links-cloud a:hover { background: #1677ff; color: #fff; border-color: #1677ff; }
    /* 页脚 */
    .footer {
      background: #0a1a3a;
      color: #c8d8f0;
      padding: 50px 0 24px;
    }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; }
    .footer h4 { color: #fff; font-size: 1.05rem; margin-bottom: 16px; }
    .footer p, .footer li { font-size: 0.88rem; line-height: 2; list-style: none; color: #a8bfdd; }
    .footer a { color: #a8bfdd; transition: color 0.2s; }
    .footer a:hover { color: #6aa9ff; }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 36px; padding-top: 20px;
      display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
      font-size: 0.82rem; color: #8a9fbd;
    }
    /* 浮动客服 & 返回顶部 */
    .float-kefu {
      position: fixed; right: 22px; bottom: 100px; z-index: 99;
      width: 54px; height: 54px; border-radius: 50%;
      background: linear-gradient(135deg, #1677ff, #0050d0);
      color: #fff; display: flex; align-items: center; justify-content: center;
      box-shadow: 0 8px 22px rgba(22, 119, 255, 0.4);
      cursor: pointer; transition: transform 0.2s;
      font-size: 0.75rem; text-align: center; flex-direction: column; line-height: 1.2;
    }
    .float-kefu:hover { transform: scale(1.06); }
    .kefu-pop {
      position: fixed; right: 90px; bottom: 100px; z-index: 100;
      background: #fff; border-radius: 16px; padding: 16px;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
      display: none; flex-direction: column; align-items: center; gap: 8px;
      width: 180px;
    }
    .kefu-pop.show { display: flex; }
    .kefu-pop img { width: 130px; height: 130px; object-fit: contain; border-radius: 8px; }
    .kefu-pop p { font-size: 0.8rem; color: #0a2a6b; font-weight: 600; }
    .back-top {
      position: fixed; right: 22px; bottom: 30px; z-index: 99;
      width: 44px; height: 44px; border-radius: 50%;
      background: #fff; border: 1px solid #d0e0f0; color: #1677ff;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.2rem; cursor: pointer; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
      transition: all 0.2s;
    }
    .back-top:hover { background: #1677ff; color: #fff; }
    /* 响应式 */
    @media (max-width: 1024px) {
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .hero h1 { font-size: 2.2rem; }
      .steps-row { grid-template-columns: repeat(2, 1fr); gap: 32px; }
      .case-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 860px) {
      .about-grid { grid-template-columns: 1fr; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); }
      .article-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0 16px; }
      .nav-links.open { display: flex; }
      .nav-links li a { padding: 10px 16px; border-radius: 8px; }
      .mobile-menu-btn { display: block; }
      .header-inner { min-height: 60px; }
      .hero { padding: 50px 0 40px; }
      .hero h1 { font-size: 1.8rem; }
      .hero-desc { font-size: 1rem; }
      .service-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-wrap { padding: 24px; }
      .compare-wrap { padding: 24px 16px; }
      .footer-grid { grid-template-columns: 1fr; gap: 24px; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
      .section { padding: 50px 0; }
      .section-header h2 { font-size: 1.6rem; }
      .steps-row { grid-template-columns: 1fr 1fr; }
      .score-big { font-size: 2.6rem; }
    }
    @media (max-width: 480px) {
      .container { padding: 0 16px; }
      .hero h1 { font-size: 1.5rem; }
      .hero-btns .btn-primary, .hero-btns .btn-outline { padding: 12px 24px; font-size: 0.9rem; }
      .steps-row { grid-template-columns: 1fr; }
      .about-features { grid-template-columns: 1fr; }
    }
    /* 动画 */
    .fade-up {
      opacity: 0; transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-up.visible { opacity: 1; transform: translateY(0); }