:root{
      --bg:#f7f2ea;
      --bg2:#fffaf2;
      --card:#fffdf8;
      --text:#1f2430;
      --muted:#5f6778;
      --line:#eadfce;
      --brand:#2d5bff;
      --brand2:#ff7a59;
      --accent:#12b8a6;
      --shadow:0 14px 35px rgba(43,56,100,.08);
      --shadow2:0 10px 22px rgba(43,56,100,.12);
      --radius:22px;
      --radius2:16px;
      --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(circle at top left, rgba(255,122,89,.10), transparent 24%),
        radial-gradient(circle at top right, rgba(45,91,255,.09), transparent 26%),
        linear-gradient(180deg, var(--bg) 0%, #fbf7f0 44%, #fff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(247,242,234,.82);
      border-bottom:1px solid rgba(234,223,206,.8);
    }
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:78px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;box-shadow:var(--shadow)}
    .brand h2{font-size:18px;margin:0;line-height:1.1}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .nav-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#2b3140;padding:9px 10px;border-radius:999px}
    .nav-links a:hover,.nav-links a:focus{background:rgba(45,91,255,.08);color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:999px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.25s ease;cursor:pointer;
      box-shadow:0 8px 16px rgba(0,0,0,.04);
    }
    .btn-primary{background:linear-gradient(135deg, var(--brand), #5e7dff); color:#fff}
    .btn-primary:hover{transform:translateY(-1px); box-shadow:var(--shadow2)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#253041}
    .btn-ghost:hover{border-color:#c7d0ea;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;width:44px;height:44px}
    .menu-toggle span{display:block;width:18px;height:2px;background:#263042;margin:4px auto;border-radius:10px}
    .hero{padding:42px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-main{
      position:relative;overflow:hidden;border:1px solid rgba(234,223,206,.9);
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(255,250,242,.84)),
        radial-gradient(circle at 12% 18%, rgba(255,122,89,.16), transparent 26%),
        radial-gradient(circle at 88% 22%, rgba(18,184,166,.14), transparent 24%),
        radial-gradient(circle at 68% 76%, rgba(45,91,255,.12), transparent 24%);
      border-radius:28px;padding:34px;box-shadow:var(--shadow)
    }
    .kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(45,91,255,.08);color:var(--brand);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    .hero h1{font-size:clamp(30px, 4vw, 54px);line-height:1.06;margin:18px 0 14px;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:12px;margin-top:24px}
    .mini-card{
      background:rgba(255,255,255,.72);border:1px solid rgba(234,223,206,.9);border-radius:18px;padding:14px 14px 13px
    }
    .mini-card strong{display:block;font-size:15px;margin-bottom:4px}
    .mini-card span{color:var(--muted);font-size:13px;line-height:1.6}
    .hero-side{display:grid;gap:14px}
    .panel{background:rgba(255,255,255,.8);border:1px solid rgba(234,223,206,.92);border-radius:24px;box-shadow:var(--shadow);padding:18px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .stat{
      background:#fff;border-radius:18px;border:1px solid var(--line);padding:16px 14px
    }
    .stat b{display:block;font-size:24px;color:#182033;line-height:1}
    .stat small{display:block;color:var(--muted);margin-top:8px;line-height:1.5}
    .label-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:13px;color:#334154
    }
    .section{padding:18px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section h2{margin:0;font-size:28px;line-height:1.15}
    .section .desc{margin:0;color:var(--muted);max-width:70ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .card{
      background:rgba(255,255,255,.88);border:1px solid rgba(234,223,206,.95);border-radius:22px;padding:18px;box-shadow:var(--shadow);
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow2);border-color:#d6c6a8}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .card ul{margin:12px 0 0;padding-left:18px;color:#3d4656;line-height:1.75}
    .media-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;align-items:start}
    .image-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .image-strip .ai-page-image{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{position:relative;padding:18px 16px 16px 18px}
    .step .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg, rgba(45,91,255,.14), rgba(255,122,89,.14));color:#20314f;font-weight:800;margin-bottom:10px}
    .compare-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #efe5d6;text-align:left;vertical-align:top}
    th{background:#fcf7ef;color:#243043;font-size:14px}
    td{color:#374153;font-size:14px;line-height:1.7}
    .rating{color:#d97706;font-weight:800}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .accordion{display:grid;gap:12px}
    .faq-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}
    .faq-q{
      width:100%;text-align:left;padding:16px 18px;border:0;background:transparent;color:#1f2430;font-size:15px;font-weight:700;
      display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
    .faq-a p{margin:0;padding:0 18px 16px;color:var(--muted);line-height:1.75}
    .faq-item.open .faq-a{max-height:180px}
    .faq-item.open .faq-q{color:var(--brand)}
    .testimonial-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .quote{font-size:14px;color:#394150;line-height:1.75}
    .person{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:14px;border-top:1px dashed #e8dcc8}
    .person strong{display:block;font-size:15px}
    .person span{color:var(--muted);font-size:13px}
    .news-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .news-list a{display:block;padding:16px 18px;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);transition:.2s ease}
    .news-list a:hover{transform:translateY(-2px);border-color:#cfd9f4}
    .news-list h3{margin:0 0 8px;font-size:16px}
    .news-list p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .form-card form{display:grid;gap:12px}
    .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    input,select,textarea{
      width:100%;border:1px solid #d9d0bf;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8aa2ff;box-shadow:0 0 0 4px rgba(45,91,255,.08)}
    .aside-box{display:grid;gap:14px}
    .qr{display:flex;gap:14px;align-items:center}
    .qr img{width:132px;height:132px;object-fit:cover;border-radius:18px;border:1px solid var(--line);background:#fff}
    .footer{
      margin-top:24px;padding:26px 0 22px;border-top:1px solid rgba(234,223,206,.95);
      background:linear-gradient(180deg, rgba(255,250,242,.88), rgba(248,241,230,.96));
      color:#253041
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px}
    .footer a{color:#2d5bff}
    .footer small,.footer p{color:#576273;line-height:1.7}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;border:1px solid rgba(234,223,206,.92);background:#fff;box-shadow:var(--shadow);
      display:flex;align-items:center;justify-content:center;font-size:22px
    }
    .topbar{display:none}
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    .muted{color:var(--muted)}
    .service-tags{display:flex;flex-wrap:wrap;gap:10px}
    .service-tags .tag{background:linear-gradient(180deg,#fff, #fff8ef)}
    .table-note{padding:12px 16px;color:var(--muted);font-size:13px;border-top:1px solid #efe5d6;background:#fffdf7}
    @media (max-width: 980px){
      .hero-grid,.media-grid,.two-col,.footer-grid,.grid-4,.grid-3,.workflow,.testimonial-grid,.news-list{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav{min-height:68px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow)}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px;background:#faf7f1;border-radius:14px}
      .menu-toggle{display:inline-grid;place-items:center}
      .hero,.section{padding:16px 0}
      .hero-main{padding:22px;border-radius:24px}
      .section-head{flex-direction:column;align-items:flex-start}
      .hero-grid,.media-grid,.two-col,.footer-grid,.grid-4,.grid-3,.workflow,.testimonial-grid,.news-list,.field-grid,.stat-grid{grid-template-columns:1fr}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .floating{right:12px;bottom:12px}
    }