:root{--ink:#27202a;--muted:#6f6570;--pink:#d82f72;--pink-dark:#a91d56;--rose:#fff0f5;--line:#eadde3;--paper:#fffdfd;--plum:#40263a;--green:#286d59;--gold:#b77b1d;--container:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:linear-gradient(180deg,#fff8fa 0%,#fffdfd 38%,#fff8fa 100%);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,253,.94);border-bottom:1px solid rgba(234,221,227,.85);backdrop-filter:blur(12px)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;flex:none}
    .ai-page-logo{display:block;width:42px;max-width:100%;height:auto}
    .brand-name{font-weight:800;font-size:18px;letter-spacing:0}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:9px 10px;color:#514651;font-size:13px;transition:color .2s}
    .nav-links a:hover{color:var(--pink)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:5px;background:var(--pink);color:white;padding:12px 19px;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s}
    .nav-cta{white-space:nowrap;padding:10px 15px;font-size:13px}
    .nav-cta:hover,.button:hover{background:var(--pink-dark);transform:translateY(-2px);box-shadow:0 9px 24px #c52a6b2b}
    .menu-toggle{display:none;border:1px solid var(--line);background:white;color:var(--ink);border-radius:5px;padding:9px 12px}
    .hero{position:relative;overflow:hidden;padding:76px 0 60px;background:linear-gradient(135deg,#fff8fa,#ffeaf2 52%,#fff2f6);border-bottom:1px solid #f4dce6}
    .hero:before{content:"";position:absolute;width:420px;height:420px;border:1px solid #eab8cb;border-radius:50%;right:-90px;top:-170px;box-shadow:0 0 0 35px #f5cdda40,0 0 0 75px #f5cdda25;pointer-events:none}
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);align-items:center;gap:56px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--pink-dark);font-size:13px;font-weight:800;letter-spacing:0}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--pink)}
    h1{font-size:clamp(40px,5vw,66px);line-height:1.13;letter-spacing:0;margin:17px 0 18px;max-width:680px}
    .hero-copy{max-width:620px;color:#625763;font-size:17px;margin:0 0 27px}
    .actions{display:flex;gap:12px;flex-wrap:wrap}
    .button.secondary{background:white;color:var(--pink-dark);border:1px solid #e9afc4}
    .button.secondary:hover{background:#fff4f8}
    .hero-note{margin-top:20px;color:#746874;font-size:13px}
    .hero-board{position:relative;padding:24px;border:1px solid #e6b9ca;background:#fffafc;box-shadow:15px 15px 0 #f6dce6}
    .board-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:18px}
    .board-head strong{font-size:15px}
    .live-mark{color:var(--green);font-size:12px}
    .live-mark:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:#4d9d7f;margin-right:7px}
    .model-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
    .model-chip{padding:11px 12px;background:white;border:1px solid #f0e3e8;font-size:13px;color:#4e414c}
    .model-chip b{display:block;color:var(--ink);font-size:14px}
    .board-foot{margin-top:17px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
    .stats{position:relative;margin-top:-1px;background:white;border-bottom:1px solid var(--line)}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:22px 0}
    .stat{padding:5px 22px;border-right:1px solid var(--line)}
    .stat:first-child{padding-left:0}.stat:last-child{border:0}
    .stat strong{display:block;font-size:18px;color:var(--pink-dark)}
    .stat span{font-size:12px;color:var(--muted)}
    section.content-section{padding:76px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}
    .section-head h2{font-size:32px;line-height:1.25;margin:0 0 8px;letter-spacing:0}
    .section-head p{margin:0;color:var(--muted);max-width:620px}
    .section-kicker{font-size:12px;color:var(--pink-dark);font-weight:800;letter-spacing:0}
    .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
    .intro-copy{font-size:16px;color:#514751}
    .intro-copy p{margin:0 0 16px}
    .intro-list{display:grid;grid-template-columns:1fr 1fr;gap:0 22px;border-top:1px solid var(--line)}
    .intro-list div{padding:15px 0;border-bottom:1px solid var(--line)}
    .intro-list b{display:block;font-size:14px}
    .intro-list span{font-size:12px;color:var(--muted)}
    .service-band{background:#fff2f6;border-block:1px solid #f1d8e2}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px}
    .service-item{padding:23px 0;border-top:1px solid #e9cbd7}
    .service-item .number{font-size:12px;color:var(--pink-dark);font-weight:800}
    .service-item h3{font-size:17px;margin:5px 0}
    .service-item p{font-size:13px;color:var(--muted);margin:0}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
    .step{position:relative;padding:10px 24px 10px 0;border-top:2px solid #e6afc4}
    .step:before{counter-increment:step;content:"0" counter(step);display:block;color:var(--pink);font-size:13px;font-weight:800;margin:0 0 15px}
    .step h3{font-size:16px;margin:0 0 7px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .sector-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:21px}
    .sector-list span{border:1px solid #e7ccd7;background:white;padding:8px 13px;font-size:13px;color:#514751}
    .network{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;background:var(--plum);color:white;padding:34px}
    .network h2{font-size:27px;margin:0 0 10px}
    .network p{color:#f0dfe9;margin:0}
    .network-tags{display:flex;flex-wrap:wrap;gap:9px}
    .network-tags span{border:1px solid #a88a9d;color:#fff;padding:8px 11px;font-size:13px}
    .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .case{border-top:3px solid var(--pink);padding:21px 0 10px}
    .case .case-label{font-size:12px;color:var(--pink-dark);font-weight:800}
    .case h3{font-size:20px;margin:7px 0}
    .case p{color:var(--muted);font-size:14px;margin:0 0 12px}
    .case img{display:block;width:100%;height:auto;max-width:100%;border:1px solid var(--line);margin-top:15px}
    .evaluation{display:grid;grid-template-columns:270px 1fr;gap:35px;padding:32px;background:white;border:1px solid var(--line)}
    .score{background:var(--rose);padding:24px}
    .score-label{font-size:13px;color:var(--muted)}
    .score strong{display:block;font-size:56px;line-height:1.1;color:var(--pink-dark);margin:8px 0}
    .stars{color:#bd7b1e;letter-spacing:2px}
    .score p{font-size:13px;color:#625763;margin:10px 0 0}
    .table-wrap{overflow-x:auto}
    table{width:100%;border-collapse:collapse;text-align:left;min-width:570px}
    th,td{padding:12px 13px;border-bottom:1px solid var(--line);font-size:13px}
    th{color:#776874;background:#fff9fb;font-weight:700}
    td:first-child{font-weight:700}
    td:last-child{color:var(--green)}
    .price-note{margin:14px 0 0;color:var(--muted);font-size:12px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .review{padding:20px 0;border-top:1px solid #dda9be}
    .review blockquote{margin:0;color:#453b45;font-size:14px}
    .review cite{display:block;margin-top:14px;color:var(--pink-dark);font-size:12px;font-style:normal;font-weight:700}
    .review small{display:block;color:var(--muted);font-weight:400}
    .article-list{border-top:1px solid var(--line)}
    .article-row{display:grid;grid-template-columns:130px 1fr auto;align-items:center;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}
    .article-row span{font-size:12px;color:var(--pink-dark);font-weight:700}
    .article-row a{font-weight:700}
    .article-row a:hover{color:var(--pink)}
    .article-row em{font-style:normal;color:var(--muted);font-size:12px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line)}
    summary{cursor:pointer;list-style:none;padding:17px 38px 17px 0;font-weight:700;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:7px;top:13px;color:var(--pink);font-size:22px;font-weight:400}
    details[open] summary:after{content:"−"}
    details p{margin:0;padding:0 36px 18px 0;color:var(--muted);font-size:14px}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
    .contact-info{border-left:3px solid var(--pink);padding-left:20px}
    .contact-info h2{font-size:28px;margin:0 0 12px}
    .contact-info p{color:var(--muted);margin:0 0 13px}
    .contact-links{display:grid;gap:8px;font-size:14px}
    .contact-links a{color:var(--pink-dark)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:700}
    .field input,.field select,.field textarea{width:100%;border:1px solid #ddcfd6;background:white;padding:11px 12px;border-radius:3px;color:var(--ink)}
    .field textarea{min-height:110px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{outline:2px solid #efb4ca;outline-offset:1px}
    .footer{background:#f7edf1;border-top:1px solid #e8d8df;color:#3f3540;padding:27px 0}
    .footer-main{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12px}
    .footer-links a{color:#594d57}
    .copyright{font-size:12px;color:#71636e;margin-top:15px}
    .floating{position:fixed;right:18px;bottom:22px;z-index:15;display:grid;gap:8px}
    .floating a,.to-top{width:48px;height:48px;display:grid;place-items:center;border:1px solid #e8c8d5;background:white;color:var(--pink-dark);box-shadow:0 4px 16px #57243c18;font-size:12px;font-weight:700}
    .to-top{cursor:pointer}
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:960px){
      .nav-wrap{flex-wrap:wrap;padding:12px 0}
      .nav-links{order:3;width:100%;justify-content:flex-start}
      .nav-links a{padding:7px 9px}
      .hero-grid{gap:32px}
      .service-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-wrap{min-height:64px;flex-wrap:nowrap}
      .menu-toggle{display:block;margin-left:auto}
      .nav-cta{font-size:12px;padding:9px 11px}
      .nav-links{display:none;order:initial;width:100%;padding:5px 0 12px;flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:9px 4px;border-top:1px solid #f1e4e9}
      .nav-wrap.menu-open{flex-wrap:wrap}
      .hero{padding:55px 0 42px}
      .hero-grid{grid-template-columns:1fr;gap:30px}
      h1{font-size:42px}
      .hero-copy{font-size:15px}
      .hero-board{max-width:480px;box-shadow:8px 8px 0 #f6dce6}
      .stats-grid{grid-template-columns:1fr 1fr;gap:14px 0}
      .stat{padding:8px 12px;border-right:0;border-bottom:1px solid var(--line)}
      .stat:nth-child(odd){border-right:1px solid var(--line);padding-left:0}
      .stat:nth-child(even){padding-right:0}
      .stat:nth-child(n+3){border-bottom:0}
      section.content-section{padding:55px 0}
      .section-head{display:block}
      .section-head h2{font-size:27px}
      .intro-grid,.network,.contact-grid{grid-template-columns:1fr;gap:25px}
      .service-grid{grid-template-columns:1fr}
      .service-item{padding:17px 0}
      .workflow{grid-template-columns:1fr 1fr;gap:22px}
      .step{padding-right:10px}
      .case-grid,.review-grid{grid-template-columns:1fr}
      .evaluation{grid-template-columns:1fr;padding:18px}
      .score{padding:18px}
      .article-row{grid-template-columns:1fr auto;gap:3px 12px}
      .article-row span{grid-column:1/-1}
      .article-row em{grid-column:2;grid-row:2}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .footer-main{align-items:flex-start;flex-direction:column}
      .floating{right:10px;bottom:12px}
      .floating a,.to-top{width:42px;height:42px}
    }
    @media(prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}
      .reveal{opacity:1;transform:none}
    }