:root {
      --ink:#242338;
      --muted:#696678;
      --paper:#fff9f0;
      --white:#ffffff;
      --coral:#ff6b5f;
      --pink:#ff8eb3;
      --yellow:#ffd968;
      --mint:#82d7c0;
      --blue:#71b7e8;
      --purple:#8f82d8;
      --line:#eadfda;
      --shadow:0 16px 38px rgba(72,51,66,.10);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .topbar{background:#242338;color:#fff;padding:8px 0;font-size:13px}
    .topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:18px}
    .topbar a{color:#ffd968}
    header{position:sticky;top:0;z-index:20;background:rgba(255,249,240,.96);border-bottom:1px solid rgba(234,223,218,.86);backdrop-filter:blur(12px)}
    .nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;flex-shrink:0;font-weight:800;font-size:20px}
    .ai-page-logo{width:42px;height:42px;object-fit:contain}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
    .nav-links a{padding:9px 10px;color:#4c475a;font-size:13px;white-space:nowrap;border-radius:8px}
    .nav-links a:hover{background:#fff;color:var(--coral)}
    .nav-cta,.primary-btn{background:var(--coral);color:#fff!important;border:0;border-radius:7px;padding:12px 19px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:7px;box-shadow:0 8px 18px rgba(255,107,95,.22);transition:.25s}
    .nav-cta:hover,.primary-btn:hover{transform:translateY(-2px);background:#ed594f}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:7px;padding:9px 12px;color:var(--ink)}
    .hero{position:relative;overflow:hidden;background:#fff1dc;padding:72px 0 54px;border-bottom:1px solid #f1dfc7}
    .hero:before,.hero:after{content:"";position:absolute;pointer-events:none;border-radius:22px;transform:rotate(-18deg)}
    .hero:before{width:190px;height:190px;background:var(--yellow);right:5%;top:-78px}
    .hero:after{width:120px;height:120px;background:var(--mint);left:-42px;bottom:-50px}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.18fr .82fr;align-items:center;gap:60px}
    .eyebrow{color:#d35449;font-weight:800;letter-spacing:1px;font-size:14px;margin:0 0 13px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5.5vw,70px);line-height:1.15;letter-spacing:0;margin-bottom:22px;max-width:680px}
    h2{font-size:clamp(28px,4vw,42px);line-height:1.25;margin-bottom:14px}
    h3{font-size:20px;line-height:1.35;margin-bottom:10px}
    .hero-copy{font-size:18px;color:#5e596b;max-width:660px;margin-bottom:28px}
    .actions{display:flex;flex-wrap:wrap;gap:12px}
    .secondary-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid #d7c5bd;background:#fff;color:var(--ink);border-radius:7px;padding:11px 18px;font-weight:700;transition:.25s}
    .secondary-btn:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}
    .hero-panel{background:#242338;color:#fff;padding:28px;border-radius:18px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .hero-panel h3{color:#fff;margin-bottom:20px}
    .signal-list{display:grid;gap:12px}
    .signal{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.15);padding-bottom:10px;color:#eceaf4}
    .signal strong{color:var(--yellow);font-size:19px}
    .hero-note{font-size:13px;color:#c9c5d6;margin:20px 0 0}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head p{max-width:600px;color:var(--muted);margin-bottom:0}
    .section-label{font-size:13px;color:#d35449;font-weight:800;letter-spacing:1px;margin-bottom:8px}
    .metrics{padding:24px 0;background:#fff}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:14px;overflow:hidden}
    .metric{padding:24px 26px;border-right:1px solid var(--line)}
    .metric:last-child{border-right:0}
    .metric strong{font-size:31px;display:block;color:var(--coral);line-height:1.2}
    .metric span{font-size:13px;color:var(--muted)}
    .intro-band{background:#fff}
    .intro-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}
    .intro-lead{font-size:21px;line-height:1.55;font-weight:700}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
    .feature{border-left:4px solid var(--mint);padding:4px 0 4px 18px}
    .feature:nth-child(2){border-color:var(--pink)}
    .feature:nth-child(3){border-color:var(--yellow)}
    .feature:nth-child(4){border-color:var(--blue)}
    .feature p{color:var(--muted);font-size:14px;margin-bottom:0}
    .service-section{background:#f4f0ff}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .service-card{background:#fff;border:1px solid #e6def4;padding:24px;border-radius:12px;transition:.25s}
    .service-card:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-card .icon{width:43px;height:43px;display:grid;place-items:center;background:var(--yellow);border-radius:11px;font-size:22px;margin-bottom:18px}
    .service-card:nth-child(3n+2) .icon{background:var(--pink)}
    .service-card:nth-child(3n) .icon{background:var(--mint)}
    .service-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .workflow{background:#fff}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step}
    .step{position:relative;padding:24px 20px 10px;border-top:3px solid var(--coral)}
    .step:not(:last-child):after{content:"→";position:absolute;right:-10px;top:10px;color:var(--coral);font-size:23px}
    .step:before{counter-increment:step;content:"0" counter(step);display:block;color:var(--coral);font-size:14px;font-weight:800;margin-bottom:12px}
    .step p{font-size:14px;color:var(--muted);margin-bottom:0}
    .solutions{background:#fff1dc}
    .solution-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .solution{padding:20px;background:#fff;border-radius:10px;border:1px solid #f0dfca}
    .solution strong{display:block;margin-bottom:7px}
    .solution span{font-size:13px;color:var(--muted)}
    .network{background:#fff}
    .network-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center}
    .network-box{background:#242338;color:#fff;border-radius:18px;padding:30px}
    .network-box p{color:#d8d5e0}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{border:1px solid #d8d0e9;color:#514b75;background:#faf8ff;padding:7px 12px;border-radius:99px;font-size:13px}
    .timeline{display:grid;gap:16px}
    .timeline-item{display:grid;grid-template-columns:100px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
    .timeline-item time{color:var(--coral);font-weight:800}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .cases{background:#fff}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .case{background:#fff7f5;border:1px solid #f3dcd7;border-radius:12px;overflow:hidden;transition:.25s}
    .case-media{aspect-ratio:16/8;overflow:hidden;background:#f0d6cc}
    .case-media img{width:100%;height:100%;object-fit:cover}
    .case-body{padding:20px}
    .case-body p{color:var(--muted);font-size:14px;margin-bottom:0}
    .comparison{background:#f4f0ff}
    .score-panel{display:flex;align-items:center;gap:28px;background:#242338;color:#fff;border-radius:14px;padding:25px;margin-bottom:25px}
    .score{font-size:52px;color:var(--yellow);font-weight:800;line-height:1}
    .stars{color:var(--yellow);font-size:23px;letter-spacing:3px}
    .score-panel p{margin:4px 0 0;color:#d9d5e2}
    .table-wrap{overflow-x:auto;background:#fff;border-radius:12px;border:1px solid #e5ddf0}
    table{width:100%;border-collapse:collapse;min-width:720px}
    th,td{text-align:left;padding:16px 18px;border-bottom:1px solid #eee8f1;font-size:14px}
    th{background:#fff8dc;color:#3a3549}
    td:first-child{font-weight:700}
    td:last-child{color:#d35449;font-weight:700}
    .pricing{background:#fff}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .price{padding:25px;border:1px solid var(--line);border-radius:12px;background:#fff}
    .price.featured{border:2px solid var(--coral);background:#fff6f3}
    .price h3{display:flex;justify-content:space-between}
    .price strong{font-size:30px;color:var(--coral)}
    .price p{color:var(--muted);font-size:14px}
    .price ul{padding-left:19px;margin-bottom:0;color:#585365;font-size:14px}
    .match{background:#82d7c0}
    .match-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px}
    .match-copy p{color:#254f4b}
    form{background:#fff;padding:28px;border-radius:14px;display:grid;grid-template-columns:1fr 1fr;gap:15px;box-shadow:0 12px 28px rgba(37,79,75,.10)}
    .field{display:grid;gap:6px}
    .field.full{grid-column:1/-1}
    label{font-size:13px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid #dcd5d2;border-radius:6px;padding:11px 12px;color:var(--ink);background:#fff}
    textarea{min-height:116px;resize:vertical}
    .form-submit{grid-column:1/-1;justify-content:center;cursor:pointer}
    .reviews{background:#fff1dc}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .review{background:#fff;border-radius:12px;padding:23px;border:1px solid #f1dfca;transition:.25s}
    .review .stars{font-size:16px;letter-spacing:1px}
    .review p{font-size:14px;margin:12px 0 16px;color:#514c5e}
    .review small{color:#8a7d78;font-weight:700}
    .faq{background:#fff}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px}
    .faq-intro{background:#ffd968;border-radius:14px;padding:26px;height:max-content}
    .faq-intro p{color:#63532b}
    details{border-bottom:1px solid var(--line);padding:16px 0}
    summary{cursor:pointer;font-weight:700;padding-right:25px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--coral);font-size:20px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:10px 0 0}
    .articles{background:#fff}
    .article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article{padding:18px;border:1px solid var(--line);background:#fffaf8;border-radius:9px;min-height:130px}
    .article span{font-size:12px;color:var(--coral)}
    .article strong{display:block;margin-top:9px;font-size:14px}
    .contact{background:#ff8eb3}
    .contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}
    .contact p{color:#66394b}
    .contact-links{display:flex;flex-wrap:wrap;gap:10px}
    .contact-links a{background:#fff;color:#5e3143;border-radius:7px;padding:10px 15px;font-weight:700}
    .join{background:#fff}
    .join-box{background:#242338;border-radius:16px;color:#fff;padding:34px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .join-box p{color:#d9d5e2;margin-bottom:0;max-width:650px}
    footer{background:#242338;color:#fff;padding:42px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:40px}
    footer h3{color:#fff;font-size:18px}
    footer p,footer li,footer a{color:#c9c5d6;font-size:13px}
    footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
    .qr{width:112px;border-radius:7px;background:#fff;padding:5px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:30px;padding-top:18px;color:#a9a5b7;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    .float-tools{position:fixed;right:18px;bottom:20px;z-index:15;display:grid;gap:8px}
    .float-tools a{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--coral);color:#fff;font-weight:800;box-shadow:0 8px 20px rgba(80,40,50,.22)}
    .float-tools a:last-child{background:#242338}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:none}
    @media (max-width:1050px){
      .nav-links a{padding-left:6px;padding-right:6px;font-size:12px}
      .nav-cta{padding:10px 12px}
      .hero-grid,.intro-grid,.network-layout,.match-layout,.faq-layout,.contact-layout{gap:32px}
    }
    @media (max-width:820px){
      .topbar-inner{justify-content:center}
      .topbar-inner span{display:none}
      .nav{min-height:66px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);padding:10px 20px 18px;border-bottom:1px solid var(--line);box-shadow:0 12px 22px rgba(50,30,40,.08)}
      .nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}
      .nav-links a{padding:10px}
      .nav-cta{margin:8px 0 0;grid-column:1/-1}
      .hero{padding:52px 0 46px}
      .hero-grid,.intro-grid,.network-layout,.match-layout,.faq-layout,.contact-layout{grid-template-columns:1fr}
      .hero-panel{max-width:520px;transform:none}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .metric:nth-child(2){border-right:0}
      .metric:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .service-grid,.case-grid,.review-grid{grid-template-columns:repeat(2,1fr)}
      .solution-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:1fr 1fr;gap:18px}
      .step:not(:last-child):after{display:none}
      .price-grid{grid-template-columns:1fr}
      .article-grid{grid-template-columns:repeat(2,1fr)}
      .join-box{display:block}
      .join-box .primary-btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:560px){
      .container{width:min(var(--container),calc(100% - 28px))}
      section{padding:58px 0}
      h1{font-size:40px}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .feature-list,.service-grid,.case-grid,.review-grid,.solution-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr}
      .metric{padding:18px 14px}
      .metric strong{font-size:25px}
      .score-panel{align-items:flex-start;gap:16px}
      .score{font-size:40px}
      form{grid-template-columns:1fr;padding:20px}
      .field.full,.form-submit{grid-column:auto}
      .article-grid{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:75px 1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{animation:none!important;transition:none!important}
      .reveal{opacity:1;transform:none}
    }