:root{
  --c1:#6d3bff;
  --c2:#ff4d8d;
  --c3:#00c2ff;
  --c4:#ffb020;
  --ink:#151429;
  --ink2:#4a4a63;
  --line:#e7e7f0;
  --bg:#f7f7fc;
  --white:#fff;
  --grad:linear-gradient(120deg,#6d3bff 0%,#ff4d8d 55%,#ffb020 100%);
  --grad2:linear-gradient(135deg,#00c2ff 0%,#6d3bff 100%);
  --sh:0 10px 30px rgba(60,40,140,.10);
  --sh2:0 18px 50px rgba(60,40,140,.18);
  --r:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:84px 0;position:relative}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c1);background:rgba(109,59,255,.08);padding:6px 14px;border-radius:999px;margin-bottom:16px}
h2.sec-title{font-size:clamp(26px,3.2vw,40px);font-weight:800;letter-spacing:-.5px;line-height:1.25;margin-bottom:14px}
h2.sec-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub{color:var(--ink2);font-size:16px;max-width:760px;margin-bottom:44px}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* nav */
header.nav{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.brand img{height:38px;width:auto;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:0;list-style:none}
.nav-links a{padding:8px 13px;font-size:14.5px;font-weight:600;color:var(--ink2);border-radius:8px;transition:.25s}
.nav-links a:hover{color:var(--c1);background:rgba(109,59,255,.07)}
.nav-cta{background:var(--grad);color:#fff!important;padding:9px 20px!important;border-radius:999px!important;box-shadow:0 6px 18px rgba(255,77,141,.35)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,77,141,.45)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;border:none;background:none}
.burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

/* hero (NO images) */
.hero{padding:96px 0 90px;background:
  radial-gradient(900px 480px at 12% -10%,rgba(109,59,255,.20),transparent 60%),
  radial-gradient(760px 460px at 92% 0%,rgba(255,77,141,.20),transparent 60%),
  radial-gradient(700px 520px at 60% 110%,rgba(0,194,255,.18),transparent 60%),
  linear-gradient(180deg,#fbfaff 0%,#f3f1ff 100%);
  overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none;z-index:0}
.hero::before{width:340px;height:340px;background:var(--c2);top:-120px;left:-100px}
.hero::after{width:300px;height:300px;background:var(--c3);bottom:-140px;right:-80px}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,4.4vw,54px);font-weight:900;letter-spacing:-1px;line-height:1.18;margin-bottom:20px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:var(--ink2);max-width:600px;margin-bottom:16px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 30px}
.hero-tags span{font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh)}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;padding:14px 30px;border-radius:999px;cursor:pointer;border:none;transition:.28s}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 12px 30px rgba(255,77,141,.40)}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(255,77,141,.50)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:var(--sh)}
.btn-ghost:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-3px)}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{background:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.9);border-radius:var(--r);padding:22px 20px;box-shadow:var(--sh);transition:.3s}
.stat:hover{transform:translateY(-5px);box-shadow:var(--sh2)}
.stat b{display:block;font-size:clamp(26px,3vw,36px);font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.stat span{font-size:13.5px;color:var(--ink2);font-weight:600}
.stat:nth-child(2) b{background:var(--grad2);-webkit-background-clip:text;background-clip:text}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* grids & cards */
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh2);border-color:transparent}
.card .ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-weight:900;color:#fff;font-size:20px;margin-bottom:16px;background:var(--grad)}
.card:nth-child(3n+2) .ic{background:var(--grad2)}
.card:nth-child(3n) .ic{background:linear-gradient(135deg,#ffb020,#ff4d8d)}
.card h3{font-size:18px;font-weight:800;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--ink2)}

/* about */
.about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about-list{list-style:none;display:grid;gap:14px;margin-top:22px}
.about-list li{display:flex;gap:12px;font-size:15px;color:var(--ink2)}
.about-list li::before{content:"✓";flex:0 0 24px;height:24px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:13px}
.about-visual{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-visual .vbox{background:#fff;border-radius:var(--r);padding:24px;box-shadow:var(--sh);border:1px solid var(--line);transition:.3s}
.about-visual .vbox:hover{transform:translateY(-5px);box-shadow:var(--sh2)}
.about-visual .vbox b{display:block;font-size:28px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.about-visual .vbox span{font-size:13.5px;color:var(--ink2)}
.about-visual .vbox:nth-child(2){background:var(--grad);border:none}
.about-visual .vbox:nth-child(2) b,.about-visual .vbox:nth-child(2) span{color:#fff;-webkit-text-fill-color:#fff}

/* scenes */
.scene-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--c1);background:rgba(109,59,255,.08);padding:5px 12px;border-radius:999px;margin-bottom:10px}

/* timeline / steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 24px;position:relative;transition:.3s}
.step:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.step .num{width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.step h3{font-size:16.5px;margin-bottom:8px;font-weight:800}
.step p{font-size:14px;color:var(--ink2)}
.step::after{content:"";position:absolute;top:50px;right:-14px;width:20px;height:2px;background:linear-gradient(90deg,var(--c2),transparent);display:block}
.step:last-child::after{display:none}

/* table */
.table-wrap{overflow-x:auto;border-radius:var(--r);box-shadow:var(--sh);border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;min-width:720px}
table th,table td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table thead th{background:linear-gradient(120deg,#f3efff,#ffeef6);font-weight:800;font-size:14px;color:var(--ink)}
table tbody tr:hover{background:rgba(109,59,255,.04)}
table td:first-child{font-weight:700;color:var(--ink)}
.yes{color:#0b9d5b;font-weight:800}
.no{color:#c43a3a;font-weight:700}

/* review */
.review{background:var(--bg)}
.rv-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.3s}
.rv-card:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.rv-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rv-ava{width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px}
.rv-head b{font-size:15px}
.rv-head span{font-size:12.5px;color:var(--ink2);display:block}
.rv-stars{color:var(--c4);font-size:14px;letter-spacing:2px;margin-bottom:8px}
.rv-card p{font-size:14.5px;color:var(--ink2)}

/* evaluate */
.eval-hero{background:var(--grad);border-radius:24px;padding:46px 40px;color:#fff;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;box-shadow:var(--sh2)}
.eval-hero h3{font-size:clamp(22px,2.6vw,32px);font-weight:900;margin-bottom:10px}
.eval-hero p{opacity:.92;font-size:15px;max-width:640px}
.eval-score{text-align:center;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:20px;padding:24px 34px;backdrop-filter:blur(6px)}
.eval-score b{font-size:52px;font-weight:900;line-height:1;display:block}
.eval-score span{font-size:13px;opacity:.9;display:block;margin-top:6px}
.eval-score .stars{font-size:20px;letter-spacing:3px;margin-top:8px}

/* articles */
.art-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.art{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.3s;display:flex;flex-direction:column;gap:10px}
.art:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.art .tag{font-size:12px;font-weight:700;color:var(--c2);background:rgba(255,77,141,.1);padding:4px 10px;border-radius:999px;width:fit-content}
.art h3{font-size:16.5px;font-weight:800}
.art p{font-size:14px;color:var(--ink2);flex:1}
.art a.more{font-size:14px;font-weight:700;color:var(--c1)}

/* case */
.case-card{border-radius:var(--r);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--sh);transition:.3s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.case-card img{width:100%;height:220px;object-fit:cover}
.case-card .cbody{padding:22px 24px}
.case-card h3{font-size:17px;margin-bottom:8px;font-weight:800}
.case-card p{font-size:14px;color:var(--ink2)}

/* price */
.price{background:var(--bg)}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;transition:.3s;position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.price-card.featured{background:var(--grad);color:#fff;border:none;box-shadow:var(--sh2)}
.price-card h3{font-size:17px;margin-bottom:12px;font-weight:800}
.price-card .amt{font-size:34px;font-weight:900;line-height:1.1;margin-bottom:6px}
.price-card .amt small{font-size:14px;font-weight:600;opacity:.8}
.price-card ul{list-style:none;margin:20px 0;display:grid;gap:10px;font-size:14px;color:var(--ink2)}
.price-card.featured ul{color:rgba(255,255,255,.92)}
.price-card ul li::before{content:"•";margin-right:8px;color:var(--c2);font-weight:900}
.price-card.featured ul li::before{color:#fff}

/* tags cloud */
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags a,.tags span{font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink2);transition:.25s;cursor:pointer}
.tags a:hover,.tags span:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.model-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.model-cloud span{font-size:13px;font-weight:700;padding:7px 14px;border-radius:10px;background:rgba(109,59,255,.07);color:var(--c1);transition:.25s}
.model-cloud span:hover{background:var(--grad);color:#fff;transform:translateY(-2px)}

/* network */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.net-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.3s}
.net-card:hover{transform:translateY(-5px);box-shadow:var(--sh2)}
.net-card h3{font-size:16.5px;margin-bottom:8px;font-weight:800}
.net-card p{font-size:14px;color:var(--ink2)}

/* faq */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:14px;background:#fff;overflow:hidden;transition:.25s}
.faq-item:hover{border-color:rgba(109,59,255,.4)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 24px;font-size:15.5px;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .ico{flex:0 0 26px;height:26px;border-radius:50%;background:rgba(109,59,255,.1);color:var(--c1);display:flex;align-items:center;justify-content:center;font-weight:900;transition:.3s;font-size:16px}
.faq-item.open .faq-q .ico{background:var(--grad);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px}
.faq-a p{padding-bottom:20px;font-size:14.5px;color:var(--ink2)}

/* form */
.contact{background:var(--grad)}
.contact .sec-title,.contact .sec-sub{color:#fff}
.contact .sec-sub{opacity:.9}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.contact-info{color:#fff}
.contact-info h3{font-size:20px;margin-bottom:18px;font-weight:800}
.ci-item{display:flex;gap:12px;margin-bottom:16px;font-size:15px;align-items:flex-start}
.ci-item .ic{width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-weight:800}
.ci-item a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.qr-box{margin-top:22px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:16px;padding:16px;display:inline-block}
.qr-box img{width:140px;height:140px;object-fit:cover;border-radius:10px}
.qr-box p{color:#fff;font-size:13px;text-align:center;margin-top:8px}
.form-card{background:#fff;border-radius:22px;padding:34px 30px;box-shadow:var(--sh2)}
.form-card h3{font-size:20px;margin-bottom:6px;font-weight:800}
.form-card p.fsub{font-size:13.5px;color:var(--ink2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;color:var(--ink);transition:.25s;background:#fbfbfe}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c1);box-shadow:0 0 0 3px rgba(109,59,255,.12);background:#fff}
.field textarea{resize:vertical;min-height:96px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card .btn-main{width:100%;margin-top:6px}

/* footer */
footer{background:#0e0b1f;color:#b8b8cc;padding:64px 0 30px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;margin-bottom:44px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.foot-brand img{height:36px;border-radius:8px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800}
.foot-col ul{list-style:none;display:grid;gap:10px}
.foot-col ul a{color:#b8b8cc;transition:.25s;font-size:13.5px}
.foot-col ul a:hover{color:#fff;padding-left:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8a8aa3}
.foot-bottom a{color:#8a8aa3}
.foot-bottom a:hover{color:#fff}

/* floating */
.float-kf{position:fixed;right:22px;bottom:120px;z-index:150;display:flex;flex-direction:column;gap:12px}
.float-kf a,.float-kf button{width:54px;height:54px;border-radius:50%;background:#fff;box-shadow:0 8px 24px rgba(60,40,140,.22);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--c1);border:none;cursor:pointer;transition:.28s;text-align:center;line-height:1.2}
.float-kf a:hover,.float-kf button:hover{background:var(--grad);color:#fff;transform:translateY(-3px)}
.float-kf .svg-ic{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.back-top{position:fixed;right:22px;bottom:52px;z-index:150;width:54px;height:54px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(255,77,141,.4);cursor:pointer;opacity:0;visibility:hidden;transition:.3s;border:none;font-size:20px}
.back-top.show{opacity:1;visibility:visible}

/* misc */
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pill-row span{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid var(--line);font-weight:600}
.trust-bar{display:flex;flex-wrap:wrap;gap:26px 44px;justify-content:center;padding:22px 30px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);margin-top:36px}
.trust-bar div{text-align:center}
.trust-bar b{display:block;font-size:22px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust-bar span{font-size:12.5px;color:var(--ink2);font-weight:600}
.divider{height:1px;background:var(--line);margin:0 auto;max-width:1200px}

@media(max-width:1024px){
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .hero-stats{grid-template-columns:repeat(4,1fr)}
  .g4,.steps{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .eval-hero{grid-template-columns:1fr;text-align:center}
  .eval-score{margin:0 auto}
}
@media(max-width:768px){
  section{padding:60px 0}
  .nav-links{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--sh2);transform:translateY(-140%);transition:.35s;max-height:calc(100vh - 70px);overflow-y:auto}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:12px 14px;border-radius:10px}
  .nav-links .nav-cta{text-align:center;margin-top:8px}
  .burger{display:flex}
  .g3,.g2,.g4,.steps,.art-list,.net-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .about-visual{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .float-kf{right:14px;bottom:104px}
  .back-top{right:14px;bottom:40px}
  .eval-hero{padding:32px 22px}
  .price-card .amt{font-size:30px}
}