:root{
  --ink:#20243a;
  --muted:#687087;
  --pink:#ff5d8f;
  --orange:#ff9a54;
  --yellow:#ffd65a;
  --cyan:#42d9d0;
  --blue:#5b8cff;
  --cream:#fffaf4;
  --line:#eadfe4;
  --white:#fff;
  --shadow:0 16px 40px rgba(59,42,72,.1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);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}
.container{width:min(1180px,calc(100% - 36px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,223,228,.8)}
.navbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.ai-page-logo{width:42px;border-radius:12px}
.brand strong{font-size:20px;letter-spacing:0}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
.nav-links a{font-size:13px;color:#4e556b;padding:7px 9px;border-radius:9px;transition:.25s}
.nav-links a:hover{background:#ffe4ec;color:#d93671}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:12px 20px;font-weight:700;cursor:pointer;transition:transform .25s,box-shadow .25s,background .25s}
.nav-cta,.btn-primary{background:var(--pink);color:#fff;box-shadow:0 8px 18px rgba(255,93,143,.25)}
.nav-cta:hover,.btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,93,143,.25)}
.menu-toggle{display:none;border:0;background:#ffe5ed;color:#d93671;border-radius:10px;padding:8px 12px;font-size:20px}
.hero{position:relative;overflow:hidden;padding:82px 0 68px;background:linear-gradient(135deg,#fff7f0 0%,#fff0f5 54%,#f0fbff 100%)}
.hero:after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;right:-100px;top:-95px;background:#ffd65a;opacity:.55}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.18fr) minmax(300px,.82fr);gap:55px;align-items:center}
.eyebrow{display:inline-flex;background:#fff0bd;color:#9b6411;padding:5px 12px;border-radius:20px;font-size:13px;font-weight:700}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,6vw,68px);line-height:1.1;letter-spacing:0;margin:18px 0 22px;max-width:690px}
h2{font-size:clamp(27px,4vw,42px);line-height:1.2;margin-bottom:14px}
h3{font-size:19px;line-height:1.35;margin-bottom:8px}
.lead{font-size:18px;color:#596177;max-width:650px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn-secondary{background:#fff;color:#d93671;border:1px solid #ffc2d3}
.hero-panel{background:#fff;border:1px solid #f2d8df;border-radius:24px;padding:25px;box-shadow:var(--shadow);animation:floatIn .8s ease both}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px}
.signal{width:11px;height:11px;border-radius:50%;background:#48cf97;display:inline-block;margin-right:7px}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.metric{padding:16px;background:#fff7ee;border-radius:15px}
.metric:nth-child(2){background:#eefbfa}.metric:nth-child(3){background:#f5f0ff}.metric:nth-child(4){background:#fff0f5}
.metric b{display:block;font-size:25px;color:#252b48}
.metric span{color:var(--muted);font-size:13px}
.section{padding:82px 0}
.section-alt{background:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
.section-head p{max-width:560px;color:var(--muted);margin-bottom:0}
.kicker{font-size:13px;color:#e0477c;font-weight:800;letter-spacing:1px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:start}
.about-copy{font-size:17px;color:#596177}
.pill-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
.pill{padding:7px 13px;border-radius:30px;background:#fff;border:1px solid var(--line);font-size:13px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.service-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px;transition:.25s}
.service-card:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.service-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:#ffe2ec;color:#e0477c;font-weight:800;margin-bottom:15px}
.service-card:nth-child(2) .service-icon{background:#fff0c8;color:#b17709}.service-card:nth-child(3) .service-icon{background:#dff8f3;color:#168c80}.service-card:nth-child(4) .service-icon{background:#e6edff;color:#5273d0}
.service-card p,.case p,.review p{color:var(--muted);font-size:14px;margin-bottom:0}
.workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.step{position:relative;padding:20px 15px;background:#fff;border-top:4px solid var(--pink);border-radius:12px;box-shadow:0 8px 22px rgba(64,42,72,.06)}
.step:nth-child(2){border-color:var(--orange)}.step:nth-child(3){border-color:var(--yellow)}.step:nth-child(4){border-color:var(--cyan)}.step:nth-child(5){border-color:var(--blue)}
.step b{font-size:28px;color:#e0477c}
.solution-grid,.case-grid,.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.solution{padding:25px;border-radius:18px;background:linear-gradient(145deg,#fff0f5,#fff);border:1px solid #f5d8e2}
.solution:nth-child(2){background:linear-gradient(145deg,#fff6d9,#fff)}.solution:nth-child(3){background:linear-gradient(145deg,#e4faf7,#fff)}
.solution ul{padding-left:19px;color:var(--muted);font-size:14px;margin-bottom:0}
.case{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}
.case-media{display:grid;grid-template-columns:1fr 1fr;gap:7px;background:#f5edf0;padding:8px}
.case-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:9px}
.case-body{padding:19px}
.case-body .tag{color:#e0477c;font-size:12px;font-weight:800}
.compare-wrap{display:grid;grid-template-columns:260px 1fr;gap:25px;align-items:start}
.score{background:#20243a;color:#fff;border-radius:20px;padding:27px}
.score strong{display:block;color:#ffd65a;font-size:34px;line-height:1.2;margin:9px 0}
.score span{color:#d9ddec;font-size:13px}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
table{width:100%;min-width:680px;border-collapse:collapse}
th,td{text-align:left;padding:15px;border-bottom:1px solid #eee5e8;font-size:14px}
th{background:#fff2f5;color:#d93671}td:first-child{font-weight:700}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.timeline div{padding:18px;border-left:3px solid var(--cyan);background:#fff;border-radius:0 12px 12px 0}
.timeline b{color:#168c80}
.network{display:flex;flex-wrap:wrap;gap:10px;padding:25px;background:#fff;border:1px solid var(--line);border-radius:18px}
.network span{padding:8px 13px;border-radius:9px;background:#f3f5ff;color:#4e64ae;font-size:13px}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.price{background:#fff;border:1px solid var(--line);padding:23px;border-radius:16px}
.price b{font-size:20px}.price em{display:block;color:#e0477c;font-size:27px;font-style:normal;margin:10px 0}
.price p{font-size:14px;color:var(--muted);margin-bottom:0}
.reviews{background:#fff7ee}
.review{background:#fff;padding:22px;border-radius:15px;border:1px solid #f2dfcd;transition:.25s}
.stars{color:#f2ae2e;letter-spacing:2px;margin-bottom:10px}
.reviewer{font-weight:700;margin-top:15px;font-size:14px}
.article-list{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.article-list a{background:#fff;border:1px solid var(--line);padding:17px;border-radius:13px;font-size:14px;transition:.25s}
.article-list a:hover{border-color:#ff9ab9;color:#d93671}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px 18px}
summary{cursor:pointer;font-weight:700;padding-right:20px}
details p{color:var(--muted);font-size:14px;margin:12px 0 0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card{max-width:850px;background:#fff;border:1px solid var(--line);padding:28px;border-radius:20px}
label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}
input,select,textarea{width:100%;border:1px solid #ded9e0;border-radius:10px;padding:12px 13px;background:#fff;color:var(--ink);font:inherit;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--pink);box-shadow:0 0 0 3px #ffe2eb}
.full{grid-column:1/-1}
textarea{min-height:125px;resize:vertical}
.footer{background:#20243a;color:#fff;padding:42px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}
.footer p,.footer a,.footer small{color:#c7cadd;font-size:13px}
.footer h3{color:#fff;font-size:16px}
.footer-links{display:flex;flex-direction:column;gap:7px}
.qr{width:100px;border-radius:8px;background:#fff;padding:5px}
.copyright{border-top:1px solid #41455c;margin-top:28px;padding-top:17px}
.float-contact{position:fixed;right:18px;bottom:20px;z-index:10}
.float-contact button{border:0;border-radius:50%;width:55px;height:55px;background:var(--pink);color:#fff;font-weight:800;box-shadow:0 10px 25px rgba(255,93,143,.35);cursor:pointer}
.contact-pop{display:none;position:absolute;right:0;bottom:68px;background:#fff;color:var(--ink);width:185px;padding:15px;border-radius:14px;box-shadow:var(--shadow);text-align:center;font-size:13px}
.contact-pop.show{display:block}
.contact-pop img{width:120px;display:block;margin:8px auto}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.reveal.visible{opacity:1;transform:none}
@keyframes floatIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@media(max-width:980px){
  .nav-links{display:none;position:absolute;top:76px;left:0;right:0;padding:15px 18px;background:var(--cream);border-bottom:1px solid var(--line);box-shadow:0 12px 20px rgba(40,30,50,.08)}
  .nav-links.open{display:flex;justify-content:flex-start}.nav-links a{width:25%}.menu-toggle{display:block}
  .hero-grid{grid-template-columns:1fr}.hero{padding-top:58px}.service-grid{grid-template-columns:repeat(2,1fr)}
  .article-list{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:680px){
  .container{width:min(100% - 28px,1180px)}.navbar{min-height:68px}.nav-links{top:68px}.nav-links a{width:50%}
  .brand strong{font-size:18px}.hero{padding:54px 0 48px}h1{font-size:40px}.lead{font-size:16px}
  .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
  .about-grid,.compare-wrap{grid-template-columns:1fr}.service-grid,.solution-grid,.case-grid,.review-grid,.price-grid,.faq-list{grid-template-columns:1fr}
  .workflow,.timeline{grid-template-columns:1fr 1fr}.article-list{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}.full{grid-column:auto}.footer-grid{grid-template-columns:1fr 1fr}
  .actions .btn{width:100%}
}
@media(max-width:420px){.workflow,.timeline,.article-list,.footer-grid{grid-template-columns:1fr}.metric-grid{gap:8px}.metric{padding:12px}}