:root{--ink:#24212d;--muted:#6e6977;--paper:#fffaf3;--white:#fff;--line:#ece4da;--coral:#f16c53;--blue:#4378df;--yellow:#f4c94e;--mint:#9bd9c2;--purple:#8766c9;--shadow:0 16px 44px rgba(53,39,72,.09);--max:1160px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:88px}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    .container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,243,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(236,228,218,.8)}
    .nav-row{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:.02em;white-space:nowrap}
    .brand img{width:38px;height:auto;max-width:100%;object-fit:contain}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{padding:9px 10px;color:#575260;font-size:.88rem;border-radius:999px;transition:background .2s,color .2s}
    .nav-links a:hover{background:#f3e9de;color:var(--ink)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;background:var(--ink);color:white;padding:12px 20px;font-weight:750;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
    .nav-cta:hover,.button:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(36,33,45,.18)}
    .menu-toggle{display:none;border:1px solid var(--line);background:white;border-radius:12px;padding:9px 12px;color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:88px 0 58px;background:linear-gradient(135deg,#fff4dd 0%,#fffaf3 47%,#edf4ff 100%)}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero:before{width:210px;height:210px;right:8%;top:25px;border:2px dashed rgba(67,120,223,.28);animation:spin 34s linear infinite}
    .hero:after{width:72px;height:72px;background:var(--yellow);right:16%;top:90px;opacity:.8;transform:rotate(20deg);border-radius:28% 72% 55% 45%}
    .hero-inner{position:relative;z-index:1;max-width:790px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#6b5792;font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
    .eyebrow:before{content:"";width:22px;height:3px;background:var(--coral);border-radius:3px}
    h1{font-size:clamp(2.55rem,7vw,5.2rem);line-height:1.08;letter-spacing:-.055em;max-width:800px;margin:18px 0}
    .accent{color:var(--blue)}
    .hero p{max-width:650px;color:#5c5863;font-size:1.1rem;margin:0 0 26px}
    .hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .button.primary{background:var(--coral)}
    .button.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .hero-note{font-size:.88rem;color:var(--muted);margin-top:18px}
    .spark{display:inline-block;color:var(--coral);font-size:1.2rem;animation:bob 2.8s ease-in-out infinite}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:48px}
    .metric{padding:18px 20px;border-top:2px solid var(--ink);background:rgba(255,255,255,.62)}
    .metric strong{display:block;font-size:1.08rem}
    .metric span{color:var(--muted);font-size:.86rem}
    section{padding:76px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head h2{font-size:clamp(1.8rem,4vw,2.8rem);letter-spacing:-.04em;line-height:1.15;margin:8px 0 0}
    .section-head p{max-width:510px;color:var(--muted);margin:0}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
    .intro-copy{font-size:1.06rem;color:#514d58}
    .intro-copy p{margin:0 0 16px}
    .tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
    .tag{padding:7px 12px;border:1px solid #e6ddd2;border-radius:999px;background:#fff;font-size:.84rem;color:#514d58}
    .intro-aside{padding:25px;background:#f1ebff;border-radius:24px 24px 24px 6px}
    .intro-aside h3{margin:0 0 10px}
    .intro-aside p{margin:0;color:#595365}
    .service-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .service{position:relative;padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:transform .25s,box-shadow .25s}
    .service:hover,.quote:hover,.case:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .service .icon{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:#fff0d7;color:#7b4c1c;font-size:1.2rem;margin-bottom:14px}
    .service:nth-child(3n+2) .icon{background:#e8f0ff;color:#365bb0}
    .service:nth-child(3n) .icon{background:#e5f6ef;color:#34745b}
    .service h3{font-size:1.05rem;margin:0 0 7px}
    .service p{font-size:.91rem;color:var(--muted);margin:0}
    .service-grid.compact{grid-template-columns:repeat(4,minmax(0,1fr))}
    .compact .service{padding:17px}
    .compact .service h3{font-size:.97rem}
    .compact .service p{font-size:.85rem}
    .band{background:#282433;color:white}
    .band .section-head p,.band .eyebrow{color:#d8d2e1}
    .band .eyebrow:before{background:var(--yellow)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .step{padding:20px;border:1px solid rgba(255,255,255,.2);border-radius:16px;background:rgba(255,255,255,.06)}
    .step b{display:block;color:var(--yellow);font-size:.83rem;letter-spacing:.08em}
    .step h3{margin:11px 0 6px;font-size:1.05rem}
    .step p{margin:0;color:#d4cfda;font-size:.9rem}
    .industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .industry{padding:19px;background:#fff;border-radius:6px 18px 18px 18px;border-bottom:3px solid var(--mint)}
    .industry:nth-child(2n){border-color:var(--coral)}
    .industry h3{font-size:1rem;margin:0 0 6px}
    .industry p{color:var(--muted);font-size:.88rem;margin:0}
    .network{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
    .network-panel{padding:28px;background:#eaf3ff;border-radius:28px}
    .network-panel h3{margin:0 0 10px}
    .network-panel p{margin:0;color:#565e6c}
    .model-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
    .model-cloud span{background:#fff;border:1px solid #dce5f2;border-radius:9px;padding:7px 11px;font-size:.87rem}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case{overflow:hidden;background:white;border:1px solid var(--line);border-radius:18px;transition:transform .25s,box-shadow .25s}
    .case img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:#f3eee8}
    .case-body{padding:18px}
    .case-body h3{margin:0 0 6px;font-size:1.05rem}
    .case-body p{margin:0;color:var(--muted);font-size:.9rem}
    .rating{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px;background:#fff2d0;border-radius:20px;margin-bottom:22px}
    .rating strong{font-size:2rem;line-height:1}
    .stars{color:#d99a00;letter-spacing:.14em;font-size:1.2rem}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:white}
    table{width:100%;border-collapse:collapse;min-width:700px}
    th,td{text-align:left;padding:14px 16px;border-bottom:1px solid #eee8e1}
    th{background:#f6f0e8;font-size:.9rem}
    td{font-size:.91rem}
    tr:last-child td{border-bottom:0}
    .good{color:#23784c;font-weight:750}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .quote{background:white;border:1px solid var(--line);border-radius:18px;padding:20px;transition:transform .25s,box-shadow .25s}
    .quote blockquote{margin:0 0 15px;color:#514d58}
    .quote cite{font-style:normal;font-size:.88rem;font-weight:750}
    .quote small{display:block;color:var(--muted);font-weight:400;margin-top:2px}
    .match{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:start}
    .match-copy{padding:24px;background:#e8f5ee;border-radius:20px}
    .match-copy h3{margin:0 0 10px}
    .match-copy p{margin:0;color:#4e6259}
    .form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:6px}
    .field.full{grid-column:1/-1}
    label{font-weight:700;font-size:.9rem}
    input,select,textarea{width:100%;border:1px solid #ded8d1;border-radius:10px;padding:12px 13px;background:#fff;color:var(--ink)}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{outline:3px solid rgba(67,120,223,.16);border-color:var(--blue)}
    .faq-list{display:grid;gap:9px}
    details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 17px}
    summary{cursor:pointer;list-style:none;padding:16px 30px 16px 0;font-weight:750;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;top:14px;color:var(--coral);font-size:1.25rem}
    details[open] summary:after{content:"−"}
    details p{margin:0 0 16px;color:var(--muted)}
    .articles{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
    .article{padding:15px;background:#fff;border:1px solid var(--line);border-radius:12px;font-weight:700;font-size:.91rem;transition:border-color .2s,transform .2s}
    .article:hover{border-color:var(--blue);transform:translateY(-2px)}
    .partners{display:flex;flex-wrap:wrap;gap:10px}
    .partners a{padding:9px 13px;border:1px solid #e2d9cf;background:#fff;border-radius:999px;font-size:.9rem}
    .closing{padding:32px;background:#fff0e8;border-radius:22px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .closing h2{margin:0 0 5px;font-size:1.6rem}
    .closing p{margin:0;color:var(--muted)}
    footer{margin-top:48px;background:#f0e9df;color:#35313a;padding:28px 0}
    .footer-row{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
    .footer-links{display:flex;gap:14px;flex-wrap:wrap}
    .footer-links a{font-size:.88rem;color:#4d4753}
    .footer-copy{font-size:.84rem;color:#615b66}
    .float-tools{position:fixed;right:18px;bottom:20px;z-index:15;display:grid;gap:8px}
    .float-tools a,.top-button{display:grid;place-items:center;width:48px;height:48px;border:0;border-radius:50%;background:var(--ink);color:#fff;box-shadow:0 8px 24px #24212d30;font-size:.8rem;cursor:pointer}
    .float-tools a:first-child{background:var(--coral)}
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:translateY(0)}
    @keyframes spin{to{transform:rotate(360deg)}}
    @keyframes bob{50%{transform:translateY(-5px)}}
    @media(max-width:950px){
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:70px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);align-items:stretch}
      .nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}
      .nav-links a{padding:10px}
      .menu-toggle{display:block;margin-left:auto}
      .nav-cta{padding:10px 14px}
      .service-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}
      .industry-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(var(--max),calc(100% - 30px))}
      .nav-row{min-height:68px;gap:10px}
      .brand{font-size:.93rem}
      .brand img{width:32px}
      .hero{padding:62px 0 38px}
      .hero:before{width:140px;height:140px;right:-10px;top:18px}
      .hero:after{right:12%;top:74px;width:48px;height:48px}
      .metrics{grid-template-columns:repeat(2,1fr);margin-top:34px}
      section{padding:55px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .intro-grid,.network,.match{grid-template-columns:1fr}
      .service-grid{grid-template-columns:1fr 1fr}
      .steps{grid-template-columns:1fr 1fr}
      .case-grid,.quotes{grid-template-columns:1fr 1fr}
      .articles{grid-template-columns:1fr 1fr}
      .rating{align-items:flex-start;flex-direction:column}
      .closing{align-items:flex-start;flex-direction:column}
      .footer-row{align-items:flex-start;flex-direction:column}
    }
    @media(max-width:460px){
      .nav-cta{font-size:.8rem;padding:9px 11px}
      .service-grid,.service-grid.compact,.industry-grid,.steps,.case-grid,.quotes{grid-template-columns:1fr}
      .form{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .hero-actions .button{width:100%}
      .articles{grid-template-columns:1fr}
      .float-tools{right:10px;bottom:12px}
      .float-tools a,.top-button{width:43px;height:43px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}
      .reveal{opacity:1;transform:none}
    }