:root{
  --pink:#e72572;--rose:#b81657;--ink:#241b2a;--muted:#716975;--cream:#fff8fb;
  --line:#f0dce6;--card:#fff;--dark:#32152b;--gold:#f2b84b;--max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,248,251,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.ai-page-logo{width:128px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{font-size:13px;color:#55434f;padding:8px 9px;transition:.2s}
.nav-links a:hover{color:var(--pink)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:5px;padding:11px 19px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.nav-cta,.btn-primary{background:var(--pink);color:#fff;box-shadow:0 8px 20px rgba(231,37,114,.2)}
.nav-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(231,37,114,.3)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:5px;padding:8px 11px;color:var(--rose);font-size:20px}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#fff8fb 0%,#ffe8f1 55%,#fff6e8 100%);padding:86px 0 76px;border-bottom:1px solid var(--line)}
.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(231,37,114,.15);transform:rotate(18deg);pointer-events:none}
.hero:before{width:280px;height:280px;right:-80px;top:35px;border-radius:38px}
.hero:after{width:140px;height:140px;left:4%;bottom:-70px;border-radius:50%}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center}
.eyebrow{color:var(--rose);font-size:13px;font-weight:800;letter-spacing:2px;margin:0 0 14px}
h1,h2,h3{line-height:1.25;margin:0 0 16px;color:var(--ink)}
h1{font-size:clamp(38px,6vw,68px);letter-spacing:0}
h2{font-size:clamp(28px,4vw,42px)}
h3{font-size:20px}
.hero-copy{font-size:18px;color:#594956;max-width:650px;margin:0 0 26px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-outline{border:1px solid var(--pink);color:var(--rose);background:#fff}
.btn-outline:hover{background:#fff0f6;transform:translateY(-2px)}
.signal-board{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.signal{background:rgba(255,255,255,.78);border:1px solid rgba(184,22,87,.14);padding:20px;border-radius:10px;box-shadow:0 16px 40px rgba(128,31,78,.08)}
.signal strong{display:block;font-size:30px;color:var(--rose);line-height:1.2}
.signal span{display:block;color:var(--muted);font-size:13px;margin-top:5px}
.section{padding:82px 0}
.section-tint{background:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head p{max-width:560px;margin:0;color:var(--muted)}
.kicker{color:var(--pink);font-weight:800;font-size:13px;letter-spacing:1px;margin-bottom:9px}
.intro{font-size:17px;color:#5f5360;max-width:820px}
.about-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}
.about-note{border-left:4px solid var(--pink);padding:5px 0 5px 22px;font-size:22px;color:var(--rose);font-weight:700}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.feature{padding:20px;background:#fff;border:1px solid var(--line);border-radius:8px;transition:.25s}
.feature:hover,.service:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:0 15px 35px rgba(126,32,78,.1)}
.feature i{display:flex;width:38px;height:38px;align-items:center;justify-content:center;background:#ffe3ed;color:var(--rose);border-radius:50%;font-style:normal;font-weight:bold;margin-bottom:12px}
.feature p,.service p,.review p,.case p{margin:0;color:var(--muted);font-size:14px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.service{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--pink);padding:22px;border-radius:7px;transition:.25s}
.service h3{font-size:18px;margin-bottom:8px}
.service-tag{display:inline-block;color:var(--rose);background:#fff0f5;padding:3px 8px;border-radius:3px;font-size:12px;margin-bottom:12px}
.workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.step{position:relative;padding:27px 18px 8px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step-num{font-size:38px;color:#f5bfd2;font-weight:800;line-height:1}
.step h3{font-size:17px;margin-top:11px}
.step p{font-size:14px;color:var(--muted);margin:0}
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.industry{background:#fff;padding:21px;border:1px solid var(--line);border-radius:8px}
.industry strong{color:var(--rose);display:block;margin-bottom:7px}
.network{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:center}
.network-box{background:var(--dark);color:#fff;padding:32px;border-radius:10px}
.network-box h2,.network-box h3{color:#fff}
.model-cloud{display:flex;gap:8px;flex-wrap:wrap;margin-top:19px}
.model-cloud span{padding:6px 11px;border:1px solid rgba(255,255,255,.2);color:#ffe7f0;border-radius:3px;font-size:13px}
.timeline{border-left:2px solid #f2aac3;padding-left:25px}
.timeline-item{position:relative;margin-bottom:22px}
.timeline-item:before{content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;background:var(--pink);border:3px solid #ffe5ef;border-radius:50%}
.timeline-item strong{color:var(--rose)}
.media-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.media-card{overflow:hidden;border-radius:9px;background:#fff;border:1px solid var(--line)}
.media-card .image-wrap{aspect-ratio:16/8;overflow:hidden;background:#f7e8ee}
.media-card.square .image-wrap{aspect-ratio:1/1}
.media-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.media-card:hover img{transform:scale(1.04)}
.media-card-content{padding:18px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);background:#fff;border-radius:8px}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{text-align:left;padding:16px;border-bottom:1px solid var(--line);font-size:14px}
th{background:#fff0f5;color:var(--rose);font-size:15px}
td strong{color:var(--rose)}
.rating{display:flex;align-items:center;gap:18px;background:#fff1f6;padding:23px;border-radius:8px;margin-bottom:20px}
.rating b{font-size:34px;color:var(--rose)}
.stars{color:#e99a21;letter-spacing:3px;font-size:22px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.review{background:#fff;border:1px solid var(--line);padding:23px;border-radius:8px;transition:.25s}
.review-top{display:flex;justify-content:space-between;gap:12px;margin-bottom:12px}
.review-top strong{font-size:15px}
.review-top span{color:#cf6e96;font-size:12px}
.review mark{background:none;color:#e99a21}
.match-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:32px;align-items:start}
.match-points{display:grid;gap:12px}
.match-points div{padding:17px 18px;background:#fff;border-left:3px solid var(--pink);border-radius:4px}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fff;border:1px solid var(--line);padding:26px;border-radius:8px}
label{font-size:13px;color:#604f5a;font-weight:700}
input,select,textarea{width:100%;margin-top:6px;padding:12px 13px;border:1px solid #e7d2dc;border-radius:4px;background:#fff;color:var(--ink);font:inherit}
textarea{min-height:120px;resize:vertical}
.full{grid-column:1/-1}
.form-note{font-size:12px;color:var(--muted);margin:0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
details{background:#fff;border:1px solid var(--line);border-radius:6px;padding:16px 18px}
summary{cursor:pointer;font-weight:700;color:#3e2936}
details p{margin:12px 0 0;color:var(--muted);font-size:14px}
.article-list{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.article{background:#fff;padding:17px;border:1px solid var(--line);border-radius:6px;min-height:120px}
.article span{font-size:12px;color:var(--pink)}
.article h3{font-size:16px;margin:8px 0}
.article a{color:var(--rose);font-size:13px}
.tag-cloud{display:flex;gap:10px;flex-wrap:wrap}
.tag-cloud a{border:1px solid #efbfd0;background:#fff;color:var(--rose);padding:8px 14px;border-radius:4px;font-size:14px}
.join{background:linear-gradient(105deg,#541a3d,#9e205e);color:#fff;padding:44px;border-radius:10px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.join h2{color:#fff}.join p{color:#f8dce8;margin:0}
.footer{background:#241523;color:#f8e9ef;padding:45px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:30px}
.footer h3{color:#fff;font-size:17px}.footer p,.footer a{color:#d9bdca;font-size:13px}.footer a:hover{color:#fff}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:16px;color:#bd9baa;font-size:12px;display:flex;justify-content:space-between;gap:20px}
.qr{width:105px;border-radius:5px;background:#fff;padding:4px}
.floating{position:fixed;right:18px;bottom:22px;z-index:15;display:flex;flex-direction:column;gap:8px}
.float-btn{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--pink);color:#fff;box-shadow:0 8px 20px rgba(80,15,50,.25);font-weight:bold}
.float-panel{display:none;position:absolute;right:54px;bottom:0;background:#fff;border:1px solid var(--line);padding:13px;border-radius:7px;width:155px;box-shadow:0 8px 24px rgba(54,16,38,.15);font-size:12px}
.floating:hover .float-panel{display:block}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media(max-width:980px){
 .nav-links{display:none;position:absolute;left:20px;right:20px;top:72px;background:#fff8fb;border:1px solid var(--line);padding:10px;box-shadow:0 15px 30px rgba(80,15,50,.12)}
 .nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}
 .nav-links a{padding:10px}
 .menu-toggle{display:block}
 .hero-grid,.about-layout,.network,.match-layout{grid-template-columns:1fr}
 .feature-grid,.service-grid{grid-template-columns:repeat(2,1fr)}
 .workflow{grid-template-columns:repeat(3,1fr);border-top:0;gap:14px}
 .step{border:1px solid var(--line);background:#fff;border-radius:7px}
 .industry-grid{grid-template-columns:repeat(2,1fr)}
 .article-list{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:620px){
 .container{width:min(var(--max),calc(100% - 28px))}
 .hero{padding:62px 0 58px}
 h1{font-size:42px}
 .section{padding:58px 0}
 .section-head{display:block}
 .feature-grid,.service-grid,.industry-grid,.review-grid,.faq-grid,.article-list{grid-template-columns:1fr}
 .workflow{grid-template-columns:1fr 1fr}
 .media-grid{grid-template-columns:1fr}
 .rating{align-items:flex-start;flex-direction:column;gap:5px}
 form{grid-template-columns:1fr;padding:18px}
 .full{grid-column:auto}
 .join{padding:28px 22px;display:block}
 .join .btn{margin-top:18px}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{display:block}
 .footer-bottom span{display:block;margin-top:8px}
}