:root{
      --ink:#20202b;
      --muted:#686575;
      --paper:#fffafc;
      --panel:#ffffff;
      --line:#eadde5;
      --pink:#e92f73;
      --pink-dark:#b91f59;
      --coral:#ff765d;
      --navy:#232847;
      --cyan:#2bb8c6;
      --soft:#fff0f5;
      --shadow:0 14px 34px rgba(72,31,60,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","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% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,252,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-wrap{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:12px;min-width:176px}
    .ai-page-logo{width:42px;height:42px;object-fit:contain}
    .brand strong{font-size:18px;letter-spacing:0;color:var(--navy)}
    .brand small{display:block;color:var(--muted);font-size:11px;line-height:1.2}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:13px;color:#4d4855;padding:7px 8px;border-radius:6px;transition:.2s}
    .nav-links a:hover{background:var(--soft);color:var(--pink-dark)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:7px;padding:11px 18px;background:var(--pink);color:#fff;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
    .nav-cta{margin-left:10px;font-size:13px;white-space:nowrap}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);background:var(--pink-dark);box-shadow:0 8px 18px rgba(185,31,89,.24)}
    .button.secondary{background:var(--navy)}
    .button.light{background:#fff;color:var(--pink-dark);border:1px solid #f2c2d4}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 11px;color:var(--navy);font-size:18px}
    .hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;padding:76px 0 66px}
    .hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.16);transform:rotate(18deg);pointer-events:none}
    .hero:before{width:370px;height:370px;right:-110px;top:-170px;border-radius:38px}
    .hero:after{width:220px;height:220px;left:-100px;bottom:-120px;border-radius:50%}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
    .eyebrow{color:#ffb4cb;font-size:13px;font-weight:700;letter-spacing:2px}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.13;letter-spacing:0;margin:15px 0 20px;max-width:680px}
    .hero p{color:#e6e5ed;max-width:650px;font-size:17px;margin:0 0 28px}
    .actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero .button.light{border:0}
    .hero-panel{border-left:3px solid var(--coral);padding:4px 0 4px 25px}
    .hero-panel h2{font-size:22px;margin:0 0 16px}
    .hero-panel p{font-size:14px;margin-bottom:18px}
    .hero-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin:0;padding:0;list-style:none}
    .hero-list li{font-size:13px;color:#f6dce5}
    .hero-list li:before{content:"＋";color:#ff8ba9;margin-right:7px}
    .stats{margin-top:-1px;background:#fff;border-bottom:1px solid var(--line)}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .stat{padding:24px 20px;border-right:1px solid var(--line)}
    .stat:last-child{border-right:0}
    .stat strong{display:block;color:var(--pink-dark);font-size:27px;line-height:1.2}
    .stat span{font-size:13px;color:var(--muted)}
    .section{padding:82px 0}
    .section.alt{background:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-kicker{color:var(--pink-dark);font-size:13px;font-weight:800;letter-spacing:1.5px}
    h2{font-size:clamp(27px,3.3vw,42px);line-height:1.25;margin:7px 0 0;color:var(--navy)}
    h3{margin:0 0 9px;line-height:1.35;color:var(--navy)}
    .section-head p{max-width:540px;margin:0;color:var(--muted);font-size:14px}
    .about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
    .intro-copy{font-size:18px;color:#3f3944;margin:0 0 18px}
    .about-copy p{color:var(--muted)}
    .highlight-box{background:var(--soft);border-left:5px solid var(--pink);padding:22px 24px}
    .highlight-box strong{font-size:21px;color:var(--navy)}
    .network{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
    .tag{background:#fff;border:1px solid #f0c5d5;color:#88314f;padding:5px 10px;border-radius:4px;font-size:12px}
    .feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .feature-card{background:var(--panel);border:1px solid var(--line);padding:23px 20px;box-shadow:0 5px 18px rgba(72,31,60,.045);transition:.25s}
    .feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#ed9db9}
    .feature-card .num{color:var(--coral);font-weight:800;font-size:13px;margin-bottom:18px}
    .feature-card p,.service-card p,.case-card p,.review p{color:var(--muted);font-size:14px;margin:0}
    .services{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service-card{border-top:4px solid var(--pink);background:#fff;padding:22px;border-radius:0 0 8px 8px;box-shadow:0 7px 22px rgba(52,27,45,.07)}
    .service-card:nth-child(2n){border-color:var(--cyan)}
    .service-card:nth-child(3n){border-color:var(--coral)}
    .service-card h3{font-size:19px}
    .service-card p{margin-bottom:15px}
    .service-card ul{padding-left:18px;margin:0;color:#514957;font-size:13px}
    .process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{position:relative;padding:27px 18px 28px;border-right:1px solid var(--line)}
    .step:last-child{border-right:0}
    .step b{display:block;color:var(--pink);font-size:28px;margin-bottom:12px}
    .step h3{font-size:16px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .solution{background:var(--navy);color:#fff;padding:24px;min-height:190px}
    .solution:nth-child(2){background:#c62b63}.solution:nth-child(3){background:#187f8c}
    .solution h3{color:#fff}.solution p{color:#f7e9ee;font-size:14px;margin:0}
    .media-card{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);padding:16px}
    .media-card figure{margin:0;overflow:hidden}
    .media-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
    .media-card h3{font-size:22px}
    .media-card p{color:var(--muted);font-size:14px}
    .cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case-card{background:#fff;border:1px solid var(--line);overflow:hidden}
    .case-card figure{margin:0;background:#f9e9ef}
    .case-card figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
    .case-content{padding:18px}
    .case-content h3{font-size:18px}
    .case-label{color:var(--pink-dark);font-size:12px;font-weight:700}
    .compare-layout{display:grid;grid-template-columns:270px 1fr;gap:30px;align-items:start}
    .score{background:var(--pink);color:#fff;padding:28px;text-align:center}
    .score strong{display:block;font-size:56px;line-height:1}
    .score span{font-size:14px}
    .stars{color:#ffd05d;font-size:23px;letter-spacing:2px;margin:10px 0}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line)}
    table{width:100%;border-collapse:collapse;min-width:650px;font-size:13px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
    th{background:#fff0f5;color:var(--navy)}
    td:nth-child(2){color:var(--pink-dark);font-weight:700}
    .pricing{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .price-box{background:#fff;border:1px solid var(--line);padding:26px}
    .price-box h3{font-size:20px}
    .price-box p{color:var(--muted);font-size:14px}
    .price-line{display:flex;justify-content:space-between;border-bottom:1px dashed #e2d3db;padding:10px 0;font-size:14px}
    .price-line strong{color:var(--pink-dark)}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{background:#fff;border:1px solid var(--line);padding:21px}
    .review p{margin-bottom:14px}
    .review footer{color:var(--navy);font-size:13px;font-weight:700}
    .review footer:before{content:"“";color:var(--pink);font-size:25px;margin-right:5px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 28px}
    details{background:#fff;border-bottom:1px solid var(--line);padding:15px 2px}
    summary{cursor:pointer;font-weight:700;color:var(--navy);padding-right:20px}
    details p{color:var(--muted);font-size:14px;margin:10px 0 0}
    .article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article{background:#fff;border:1px solid var(--line);padding:16px;min-height:125px}
    .article small{color:var(--pink-dark);font-weight:700}.article h3{font-size:15px;margin-top:8px}
    .contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:start}
    .contact-info{background:var(--navy);color:#fff;padding:28px}
    .contact-info h2,.contact-info h3{color:#fff}
    .contact-info p{color:#e5e2e9;font-size:14px}
    .contact-list{padding:0;list-style:none;color:#f7c6d5;font-size:14px}
    .contact-list li{padding:8px 0;border-bottom:1px solid rgba(255,255,255,.16)}
    .contact-list strong{color:#fff;margin-right:6px}
    .qr{width:132px;background:#fff;padding:8px;margin-top:16px}
    form{background:#fff;border:1px solid var(--line);padding:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}
    label{font-size:13px;font-weight:700;color:var(--navy)}
    input,select,textarea{font:inherit;border:1px solid #dccbd5;border-radius:5px;padding:11px 12px;color:var(--ink);background:#fff}
    textarea{min-height:112px;resize:vertical}
    form .button{width:max-content}
    .footer{background:#202133;color:#e9e6ed;padding:38px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:30px}
    .footer h3{color:#fff;font-size:16px}.footer p,.footer a{font-size:13px;color:#c8c4d0}.footer a:hover{color:#ff9db9}
    .links{display:flex;flex-wrap:wrap;gap:8px 16px}
    .copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:28px;padding-top:17px;color:#aaa7b4;font-size:12px}
    .float-contact{position:fixed;right:18px;bottom:20px;z-index:15;background:var(--pink);color:#fff;padding:12px 15px;border-radius:7px;box-shadow:0 9px 20px rgba(185,31,89,.3);font-size:13px;font-weight:700}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}.reveal.visible{opacity:1;transform:none}
    @media(max-width:1020px){
      .nav-links{display:none;position:absolute;left:20px;right:20px;top:72px;background:#fff;border:1px solid var(--line);padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{text-align:center}.nav-cta{margin:8px 0 0}
      .menu-toggle{display:block}.hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.feature-grid{grid-template-columns:repeat(2,1fr)}.article-grid{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}.nav-wrap{min-height:64px}.brand small{display:none}.hero{padding:56px 0 52px}.hero-grid{gap:32px}h1{font-size:39px}.hero p{font-size:15px}.stats-grid{grid-template-columns:repeat(2,1fr)}.stat{border-bottom:1px solid var(--line)}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}.services,.solution-grid,.cases,.reviews,.pricing{grid-template-columns:1fr}.process{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.compare-layout{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.article-grid{grid-template-columns:1fr 1fr}.media-card{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.field{grid-column:1/-1!important}form{padding:18px}.float-contact{right:12px;bottom:12px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}