:root{
      --ink:#182333;
      --muted:#5e6b7c;
      --line:#dbe4ed;
      --paper:#f7fafc;
      --white:#fff;
      --blue:#246bce;
      --cyan:#18b8c8;
      --coral:#f26751;
      --yellow:#f5bd3e;
      --navy:#142840;
      --shadow:0 16px 42px rgba(28,58,90,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:Inter,"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}
    .container{width:min(1180px,calc(100% - 36px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);
      border-bottom:1px solid rgba(219,228,237,.85);backdrop-filter:blur(14px)
    }
    .nav{
      min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:160px}
    .ai-page-logo{width:42px;height:42px;object-fit:contain}
    .brand-name{font-weight:800;font-size:20px;letter-spacing:0}
    .brand-name small{display:block;font-size:10px;color:var(--muted);font-weight:600;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
    .nav-links a{font-size:13px;color:#465568;padding:10px 9px;white-space:nowrap}
    .nav-links a:hover{color:var(--blue)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:10px;
      font-weight:700;font-size:14px;cursor:pointer;transition:.25s ease
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(36,107,206,.18)}
    .btn-primary{background:var(--blue);color:#fff}
    .btn-secondary{background:#fff;color:var(--blue);border-color:#b8d0ed}
    .btn-coral{background:var(--coral);color:#fff}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--ink);cursor:pointer}
    .hero{
      position:relative;overflow:hidden;padding:96px 0 74px;background:#eaf6fb;
      border-bottom:1px solid #d9ebef
    }
    .hero:before,.hero:after{content:"";position:absolute;pointer-events:none}
    .hero:before{width:280px;height:280px;right:-90px;top:-80px;background:#b9ecdf;border-radius:48% 52% 60% 40%;transform:rotate(22deg)}
    .hero:after{width:160px;height:160px;left:-55px;bottom:-60px;background:#ffd796;border-radius:50%}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:3px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,65px);line-height:1.12;letter-spacing:0;margin:18px 0 22px;max-width:690px}
    .hero-copy{font-size:18px;color:#4b5b6e;max-width:630px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .hero-note{font-size:13px;color:#627385;margin-top:18px}
    .hero-panel{background:#fff;border:1px solid #d6e8ef;border-radius:24px;padding:26px;box-shadow:var(--shadow);position:relative}
    .hero-panel:after{content:"";position:absolute;right:18px;top:18px;width:10px;height:10px;border-radius:50%;background:var(--coral);box-shadow:-20px 0 var(--yellow),-40px 0 var(--cyan)}
    .panel-kicker{font-size:12px;color:var(--muted);font-weight:700}
    .panel-title{font-size:25px;font-weight:800;line-height:1.25;margin:9px 0 22px}
    .signal{display:flex;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--line)}
    .signal strong{font-size:24px;color:var(--blue)}
    .signal span{font-size:13px;color:var(--muted)}
    .mini-bars{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;align-items:end;height:72px;margin:22px 0 12px}
    .mini-bars i{display:block;border-radius:5px 5px 2px 2px;background:var(--cyan)}
    .mini-bars i:nth-child(1){height:35%}.mini-bars i:nth-child(2){height:55%;background:var(--blue)}
    .mini-bars i:nth-child(3){height:72%;background:var(--yellow)}.mini-bars i:nth-child(4){height:88%;background:var(--coral)}
    .mini-bars i:nth-child(5){height:100%;background:#3a9f73}
    section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:9px 0 0}
    .section-head p{max-width:510px;color:var(--muted);margin-bottom:0}
    .about{background:#fff}
    .about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
    .lead{font-size:20px;line-height:1.65;font-weight:700}
    .body-copy{color:var(--muted)}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}
    .feature-list div{padding:17px;background:#f2f8fb;border-left:4px solid var(--cyan);border-radius:8px}
    .feature-list strong{display:block;margin-bottom:3px}.feature-list span{font-size:13px;color:var(--muted)}
    .metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:23px;border:1px solid var(--line);background:#fff;border-radius:14px}
    .metric b{font-size:32px;color:var(--blue);display:block;line-height:1.1}.metric span{font-size:13px;color:var(--muted)}
    .services{background:#f1f7fb}
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service-card{background:#fff;border:1px solid #dce7ef;border-radius:14px;padding:22px;transition:.25s}
    .service-card:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#d9f4ee;color:#197c72;font-weight:900;font-size:18px;margin-bottom:17px}
    .service-card:nth-child(2) .service-icon{background:#e1edff;color:var(--blue)}
    .service-card:nth-child(3) .service-icon{background:#fff0d0;color:#a96d00}
    .service-card:nth-child(4) .service-icon{background:#ffe4df;color:#bd4b3b}
    .service-card h3{font-size:18px;margin-bottom:8px}.service-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
    .tag{padding:7px 12px;border-radius:30px;background:#fff;border:1px solid #cadce7;color:#496174;font-size:13px}
    .workflow{background:#fff}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:2px solid #bde1e2}
    .step{padding:25px 18px 5px;position:relative}
    .step:before{content:"";position:absolute;top:-11px;left:18px;width:20px;height:20px;border-radius:50%;background:var(--coral);border:5px solid #fff;box-shadow:0 0 0 1px #f7b7ac}
    .step-num{color:var(--coral);font-weight:900;font-size:12px}.step h3{font-size:17px;margin:9px 0 7px}.step p{color:var(--muted);font-size:13px}
    .solutions{background:#eaf6fb}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .solution{padding:22px;background:#fff;border-radius:14px;border-top:4px solid var(--blue)}
    .solution:nth-child(2){border-color:var(--coral)}.solution:nth-child(3){border-color:var(--yellow)}
    .solution h3{margin-bottom:7px}.solution p{font-size:13px;color:var(--muted);margin-bottom:0}
    .network{background:#142840;color:#fff}
    .network .section-head p,.network .eyebrow{color:#b9d2e4}
    .network .eyebrow:before{background:var(--yellow)}
    .network-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}
    .network-copy{font-size:19px;color:#d5e3ed}
    .platforms{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
    .platforms span{border:1px solid #45647b;color:#e8f3f8;padding:7px 11px;border-radius:6px;font-size:13px}
    .network-box{padding:28px;background:#203b55;border:1px solid #3b5d73;border-radius:15px}
    .network-box h3{font-size:22px}.network-box ul{padding-left:19px;color:#c5d7e3}.network-box li{margin:7px 0}
    .showcase{background:#fff}
    .media-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
    .media-tile{overflow:hidden;border-radius:16px;background:#e9f2f6;border:1px solid var(--line)}
    .media-tile img{width:100%;aspect-ratio:16/7;object-fit:cover}
    .media-tile.square img{aspect-ratio:1/1}
    .media-caption{padding:17px}.media-caption strong{display:block}.media-caption span{font-size:13px;color:var(--muted)}
    .cases{background:#f4f8fa}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .case{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line);transition:.25s}
    .case img{width:100%;aspect-ratio:16/9;object-fit:cover}
    .case-body{padding:20px}.case-body h3{margin-bottom:7px}.case-body p{font-size:13px;color:var(--muted);margin-bottom:0}
    .comparison{background:#fff}
    .score-box{display:flex;align-items:center;gap:20px;background:#fff6dc;border:1px solid #f2d994;padding:20px 24px;border-radius:14px;margin-bottom:24px}
    .score{font-size:45px;line-height:1;color:#c78300;font-weight:900}.stars{color:#e9a51d;font-size:23px;letter-spacing:2px}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
    table{border-collapse:collapse;width:100%;min-width:760px;background:#fff}
    th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--line);font-size:14px}
    th{background:#edf6fa;color:#30495d}.highlight{color:#16776b;font-weight:800}
    .match{background:#eef8f6}
    .match-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
    .match-copy h2{font-size:36px;line-height:1.2}.match-copy p{color:var(--muted)}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;background:#fff;padding:25px;border-radius:16px;border:1px solid #d5e9e4;box-shadow:var(--shadow)}
    label{font-size:13px;color:#526475;font-weight:700}input,select,textarea{width:100%;margin-top:6px;padding:12px 13px;border:1px solid #cbd9e2;border-radius:8px;background:#fff;color:var(--ink);font:inherit;font-size:14px}textarea{min-height:116px;resize:vertical}.full{grid-column:1/-1}
    .reviews{background:#fff}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:21px;background:#f7fafc;border:1px solid var(--line);border-radius:14px;transition:.25s}
    .review p{font-size:14px;margin-bottom:15px}.review footer{font-size:13px;color:var(--muted);font-weight:700}.review footer strong{color:var(--ink);display:block}
    .pricing{background:#f5f8fb}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .price{background:#fff;padding:24px;border:1px solid var(--line);border-radius:14px}.price.featured{border:2px solid var(--blue);padding:23px}
    .price h3{margin-bottom:5px}.price .price-number{font-size:30px;font-weight:900;color:var(--blue)}.price p{font-size:13px;color:var(--muted)}
    .price ul{padding-left:18px;color:#526475;font-size:13px}
    .faq{background:#fff}
    .faq-list{max-width:900px;margin:0 auto;display:grid;gap:10px}
    details{border:1px solid var(--line);border-radius:10px;padding:0 18px;background:#fff}summary{cursor:pointer;padding:17px 0;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}summary:after{content:"+";color:var(--blue);font-size:20px}details[open] summary:after{content:"−"}details p{border-top:1px solid var(--line);padding:14px 0 17px;color:var(--muted);font-size:14px;margin:0}
    .articles{background:#f1f7fb}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:22px;background:#fff;border-left:4px solid var(--cyan);border-radius:10px}.article h3{font-size:18px}.article p{font-size:13px;color:var(--muted)}.article a{color:var(--blue);font-size:13px;font-weight:800}
    .join{background:#fff4e5}
    .join-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.join h2{font-size:38px;line-height:1.2}.join p{color:var(--muted)}
    .contact-band{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
    .footer{background:#142840;color:#dce9f1;padding:45px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}.footer h3{color:#fff;font-size:16px}.footer p,.footer a{font-size:13px;color:#b5cad8}.footer a{display:block;margin:7px 0}.footer a:hover{color:#fff}.footer-logo{filter:brightness(0) invert(1);opacity:.92}
    .qr{width:112px;padding:6px;background:#fff;border-radius:8px;margin-top:10px}.copyright{border-top:1px solid #345066;margin-top:28px;padding-top:17px;font-size:12px;color:#9fb6c5}
    .float-contact{position:fixed;right:18px;bottom:20px;z-index:15;width:53px;height:53px;border-radius:50%;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:22px;box-shadow:0 8px 22px rgba(242,103,81,.35);cursor:pointer}
    .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:10px 5px;font-size:12px}.nav-actions .btn-secondary{display:none}
      .service-grid{grid-template-columns:repeat(2,1fr)}.hero-grid,.about-grid,.network-grid,.match-grid{grid-template-columns:1fr}.hero{padding-top:70px}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,620px)}section{padding:60px 0}.nav{min-height:66px}.brand-name{font-size:17px}
      .menu-toggle{display:block}.nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 14px;flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 8px;border-bottom:1px solid #eef2f5}.nav-actions .btn-primary{display:none}
      .hero{padding:65px 0 54px}.hero-copy{font-size:16px}.hero-panel{margin-top:10px}.section-head{display:block}.section-head p{margin-top:15px}.metric-strip,.solution-grid,.case-grid,.review-grid,.price-grid,.article-grid,.join-grid{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}.steps{grid-template-columns:1fr;border-top:0;border-left:2px solid #bde1e2;margin-left:10px}.step{padding:5px 0 20px 24px}.step:before{left:-11px;top:5px}.media-grid{grid-template-columns:1fr}.score-box{align-items:flex-start;flex-direction:column;gap:8px}form{grid-template-columns:1fr}.full{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr}.join h2{font-size:30px}
    }
    @media(prefers-reduced-motion:reduce){*,html{scroll-behavior:auto!important;transition:none!important}.reveal{opacity:1;transform:none}}