:root{
      --bg:#f6f3ef;
      --bg2:#fbfaf8;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5f6778;
      --line:#e7e0d8;
      --accent:#ff5a7a;
      --accent2:#ff8a3d;
      --accent3:#6b5cff;
      --shadow:0 18px 45px rgba(31,36,48,.08);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(900px 380px at 10% 0%, rgba(255,90,122,.12), transparent 60%),
        radial-gradient(700px 320px at 90% 10%, rgba(107,92,255,.10), transparent 55%),
        linear-gradient(180deg, var(--bg), #fff 34%, var(--bg2) 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(246,243,239,.84);
      border-bottom:1px solid rgba(231,224,216,.8);
    }
    .topbar{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;padding:10px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;padding:4px;box-shadow:0 8px 18px rgba(31,36,48,.08)}
    .brand-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{font-size:18px;line-height:1.1}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:4px}
    .nav-wrap{display:flex;align-items:center;gap:14px}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:#364055;padding:8px 0;position:relative;white-space:nowrap}
    .nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent3));transform:scaleX(0);transform-origin:left;transition:.25s ease}
    .nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:none;border-radius:999px;padding:12px 18px;font-weight:700;
      transition:.25s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 14px 24px rgba(255,90,122,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 28px rgba(255,90,122,.28)}
    .btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#d3c8bc;box-shadow:0 14px 24px rgba(31,36,48,.06)}
    main{display:block}
    section{padding:72px 0}
    .hero{padding:34px 0 44px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
    .hero-card,.info-card,.glass-card,.content-card,.faq-card,.review-card,.case-card,.article-card,.form-card,.compare-card,.price-card,.timeline-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(231,224,216,.95);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-card{padding:34px 30px;position:relative;overflow:hidden}
    .hero-card::before,.hero-card::after{
      content:"";position:absolute;border-radius:999px;pointer-events:none
    }
    .hero-card::before{width:220px;height:220px;background:rgba(255,90,122,.10);right:-80px;top:-70px}
    .hero-card::after{width:160px;height:160px;background:rgba(107,92,255,.10);right:120px;bottom:-70px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#9b3b52;background:rgba(255,90,122,.09);padding:8px 12px;border-radius:999px}
    h1{margin:16px 0 14px;font-size:clamp(32px,5vw,52px);line-height:1.04;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);line-height:1.85;font-size:16px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
    .mini{
      background:linear-gradient(180deg,#fff, #fff8f8);
      border:1px solid #f0e5e0;border-radius:18px;padding:14px 14px 12px
    }
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.6}
    .hero-side{display:grid;gap:14px}
    .info-card{padding:22px}
    .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff, #fbf7f4);border:1px solid #efe5dc}
    .stat .n{font-size:28px;font-weight:800;line-height:1}
    .stat .t{margin-top:8px;color:var(--muted);font-size:13px;line-height:1.5}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:22px}
    .section-title h2{margin:0;font-size:clamp(24px,3vw,34px);line-height:1.15}
    .section-title p{margin:0;color:var(--muted);max-width:660px;line-height:1.8}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .content-card,.review-card,.case-card,.article-card,.faq-card,.compare-card,.price-card,.timeline-card,.form-card{padding:22px}
    .card-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
    .card-title h3{margin:0;font-size:18px}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(107,92,255,.09);color:#4c46b8;font-size:12px;font-weight:700}
    .muted{color:var(--muted);line-height:1.8}
    .icon-dot{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--accent),var(--accent3));display:inline-block;margin-right:8px}
    .service-list,.cloud,.timeline,.article-list,.faq-list{display:grid;gap:12px}
    .service-item,.cloud-item,.timeline-item,.article-item{
      border:1px solid #efe4db;border-radius:18px;background:#fff;padding:16px 16px 15px
    }
    .service-item strong,.timeline-item strong,.article-item strong{display:block;margin-bottom:6px}
    .service-item p,.timeline-item p,.article-item p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:10px 12px;border-radius:999px;background:#fff;border:1px solid #eadfd5;color:#3a4558;font-size:13px}
    .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:20px;background:linear-gradient(180deg,#fff, #fbf6f4);border:1px solid #efe2d8;position:relative}
    .step b{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent2));margin-bottom:12px}
    .step h3{margin:0 0 8px;font-size:16px}
    .step p{margin:0;color:var(--muted);line-height:1.75;font-size:14px}
    .table-wrap{overflow-x:auto;border-radius:20px;border:1px solid #efe2d8}
    table{width:100%;border-collapse:collapse;background:#fff;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #f0e7df;text-align:left;vertical-align:top}
    th{background:#fff7f6;font-size:14px}
    td{color:#3a4558;line-height:1.7;font-size:14px}
    .star{color:#ff9a2d;font-weight:700}
    details{
      border:1px solid #efe3db;border-radius:18px;background:#fff;padding:14px 16px
    }
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0;color:var(--muted);line-height:1.8}
    .reviews .review-card{display:flex;flex-direction:column;gap:14px}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .avatar{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,rgba(255,90,122,.18),rgba(107,92,255,.18));display:grid;place-items:center;font-weight:800;color:#6f3350}
    .review-meta{display:flex;gap:12px;align-items:center}
    .review-card p{margin:0;color:var(--muted);line-height:1.8}
    .case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .case-card ul{margin:12px 0 0;padding-left:18px;color:var(--muted);line-height:1.9}
    .article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article-card time{display:block;color:#8a5d69;font-size:12px;margin-bottom:8px}
    .form-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px;align-items:start}
    label{display:block;font-size:14px;font-weight:700;margin:0 0 8px}
    input,select,textarea{
      width:100%;border:1px solid #e6dbd0;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff8a3d;box-shadow:0 0 0 4px rgba(255,138,61,.12)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:14px}
    .footer{
      padding:34px 0 28px;border-top:1px solid rgba(231,224,216,.9);background:#f5f1ec;color:#2c3444
    }
    .footer a{color:#3a4558}
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .footer small{color:#5f6778;line-height:1.8}
    .footer-links,.footer-contact{display:grid;gap:10px}
    .footer-links .chips{margin-top:8px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .floating a,.to-top{
      width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid #eadfd5;display:grid;place-items:center;
      box-shadow:0 14px 28px rgba(31,36,48,.12);cursor:pointer
    }
    .to-top{display:none}
    .aside-card{
      border:1px solid #eee1d7;border-radius:20px;background:linear-gradient(180deg,#fff, #fffaf7);padding:18px
    }
    .aside-card img{border-radius:16px;border:1px solid #f0e4db}
    .touch{
      display:flex;gap:10px;flex-wrap:wrap;margin-top:12px
    }
    .touch a{font-size:13px}
    .scroll-anim{opacity:0;transform:translateY(18px);transition:.6s ease}
    .scroll-anim.in{opacity:1;transform:none}
    .service-map{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
    .service-map span{padding:12px 10px;border:1px solid #eadfd5;border-radius:14px;background:#fff;text-align:center;font-size:13px;color:#3c475a}
    .price-pill{display:flex;justify-content:space-between;gap:10px;padding:14px 0;border-bottom:1px dashed #eadfd5;color:#394355}
    .price-pill:last-child{border-bottom:none}
    .kicker{font-size:13px;color:#8d5160;font-weight:700}
    @media (max-width: 1024px){
      .hero-grid,.form-grid,.footer-grid,.case-grid,.article-grid{grid-template-columns:1fr}
      .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
      .service-map{grid-template-columns:repeat(3,minmax(0,1fr))}
    }
    @media (max-width: 768px){
      .menu-toggle{display:inline-flex}
      .nav-wrap{margin-left:auto}
      .nav{
        display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid #eadfd5;
        border-radius:20px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start;gap:8px
      }
      .nav.open{display:flex}
      .topbar{position:relative}
      .hero{padding-top:22px}
      .hero-card{padding:24px 18px}
      .hero-points,.grid-3,.grid-2{grid-template-columns:1fr}
      .stats{grid-template-columns:1fr 1fr}
      .flow{grid-template-columns:1fr}
      .section{padding:58px 0}
      .service-map{grid-template-columns:repeat(2,minmax(0,1fr))}
      .section-title{flex-direction:column;align-items:flex-start}
    }