*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.wrap{width:min(1160px,calc(100% - 40px));margin:0 auto}
.bm{width:1.5em;height:1.5em;flex:0 0 auto}
.brand{display:inline-flex;align-items:center;gap:.55em;font-weight:700;letter-spacing:.01em}
.brand-name{display:inline-flex;align-items:baseline;gap:.4em;font-size:19px}
.brand-name em{font-style:normal;font-size:12px;letter-spacing:.16em;opacity:.62;text-transform:uppercase}
.btn{padding:13px 24px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s,background .18s,border-color .18s;background:var(--accent);color:var(--on-accent)}
.btn:not([hidden]){display:inline-flex;align-items:center;justify-content:center;gap:.5em}
.btn:hover{transform:translateY(-2px)}
.btn-line{background:transparent;border-color:var(--line);color:var(--fg)}
.btn-line:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost{background:transparent;border-color:currentColor;color:inherit;opacity:.85}
.eyebrow{margin:0 0 10px;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700}
.sec-head{max-width:720px;margin:0 0 34px}
.sec-head h2{font-size:clamp(26px,3.4vw,38px)}
.sec-sub{margin-top:12px;color:var(--mut);font-size:16px;max-width:62ch}
.dl-band{padding:clamp(56px,7vw,92px) 0}
.dl-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;max-width:1020px;margin:0 auto}
.dl-band:not(:has(.dl-card:not([hidden]))){display:none}
.dl-card{flex:1 1 250px;max-width:320px;padding:26px 24px;border:1px solid var(--line);border-radius:14px;background:var(--card);color:var(--fg);transition:transform .2s,border-color .2s,box-shadow .2s}
.dl-card:not([hidden]){display:flex;flex-direction:column;gap:8px}
.dl-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 14px 36px rgba(0,0,0,.12)}
.dl-ch{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:700}
.dl-name{font-size:21px}
.dl-desc{font-size:14px;color:var(--mut);flex:1}
.dl-go{margin-top:10px;font-size:14px;font-weight:700;color:var(--accent)}
.dl-note{margin-top:20px;font-size:13px;color:var(--mut)}
.faq{padding:clamp(56px,7vw,96px) 0}
.qa-list{max-width:860px;border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line);padding:18px 0}
.qa summary{display:flex;justify-content:space-between;gap:18px;cursor:pointer;font-weight:600;font-size:16px;list-style:none}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--accent);font-weight:700}
.qa[open] summary::after{content:"–"}
.qa p{margin-top:12px;color:var(--mut);font-size:15px;max-width:70ch}
.foot{border-top:1px solid var(--line);padding:56px 0 26px;background:var(--bg2)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--mut);max-width:44ch}
.foot-col h3{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--fg);opacity:.78}
.foot-col a:hover{opacity:1;color:var(--accent)}
.foot-base{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-base p{font-size:12px;color:var(--mut)}
@media (max-width:900px){
 .foot-grid{grid-template-columns:1fr 1fr}
 .sec-head{margin-bottom:26px}
}
@media (max-width:620px){
 .wrap{width:calc(100% - 32px)}
 .foot-grid{grid-template-columns:1fr;gap:26px}
 .nav-links{display:none}
 .btn{padding:11px 18px;font-size:14px}
}

:root{--bg:#0a0a0e;--bg2:#0a0a0e2;--card:#1a1820;--fg:#fff9ec;--mut:#b5ad9c;--line:#2c2833;--accent:#fbbf24;--accent2:#a78bfa;--on-accent:#1a1505}
body{background-image:radial-gradient(circle at 12% 0,rgba(124,92,255,.18),transparent 40%),radial-gradient(circle at 90% 18%,rgba(52,211,153,.12),transparent 38%);background-attachment:fixed}
.nav{position:sticky;top:0;z-index:20;background:rgba(11,11,18,.7);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:70px}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:14px;color:var(--mut)}
.nav-links a:hover{color:var(--accent)}
.nav-cta{padding:9px 18px;font-size:13px;border-radius:99px}
.hero{padding:clamp(58px,8vw,100px) 0 30px;text-align:center}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border:1px solid var(--line);border-radius:99px;background:rgba(255,255,255,.03);font-size:12px;color:var(--mut)}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--accent2);box-shadow:0 0 10px var(--accent2)}
.hero h1{font-size:clamp(36px,5.2vw,64px);max-width:18ch;margin:20px auto 0;letter-spacing:-.03em;line-height:1.1;text-wrap:balance}
.hero h1 span{background:linear-gradient(100deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:58ch;margin:20px auto 0;color:var(--mut);font-size:16.5px}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.hero-cta .btn{border-radius:99px}
.pills{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.pills span{padding:8px 14px;border:1px solid var(--line);border-radius:99px;font-size:12px;color:var(--mut);background:rgba(255,255,255,.02)}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;padding:clamp(40px,6vw,70px) 0}
.tile{border:1px solid var(--line);border-radius:20px;background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.01));padding:26px}
.tile h3{font-size:18px;margin-bottom:8px}
.tile p{font-size:14px;color:var(--mut)}
.tile .k{font-size:11px;letter-spacing:.18em;color:var(--accent);font-weight:700;display:block;margin-bottom:12px}
.t-a{grid-column:span 4}
.t-b{grid-column:span 2;display:flex;flex-direction:column;justify-content:space-between}
.t-c{grid-column:span 2}
.t-d{grid-column:span 2}
.t-e{grid-column:span 2}
.t-f{grid-column:span 6;display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
.t-a .viz{margin-top:18px;border:1px solid var(--line);border-radius:14px;background:rgba(0,0,0,.25);padding:12px}
.t-a svg{width:100%;height:150px}
.t-b img{width:100%;height:100%;object-fit:cover;object-position:top center}
.t-b .ph{height:300px;overflow:hidden;background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:14px;margin-bottom:12px}
.t-b .small{margin-top:4px}
.big{font-size:clamp(30px,3.6vw,44px);letter-spacing:-.03em;line-height:1}
.small{font-size:12px;color:var(--mut);letter-spacing:.08em}
.t-f img{width:100%;height:100%;object-fit:cover;object-position:top center}
.t-f .ph{height:300px;overflow:hidden;background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:14px}
.sec{padding:clamp(48px,6vw,80px) 0}
.sec-head h2{font-size:clamp(26px,3.4vw,38px)}
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{padding:26px;border:1px solid var(--line);border-radius:18px;background:var(--card)}
.step em{font-style:normal;display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:9px;background:rgba(124,92,255,.16);color:var(--accent);font-size:12px;font-weight:700}
.step h3{font-size:16px;margin:14px 0 6px}
.step p{font-size:13.5px;color:var(--mut)}
.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.art{padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--card)}
.art h3{font-size:20px;margin-bottom:10px}
.art p{font-size:14.5px;color:var(--mut);margin-bottom:10px}
.safe3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.safe3 div{padding:24px;border-radius:18px;background:var(--card);border:1px solid var(--line)}
.safe3 h3{font-size:15px;margin-bottom:6px}
.safe3 p{font-size:13px;color:var(--mut)}
.cta{position:relative;padding:clamp(60px,8vw,100px) 0;text-align:center;overflow:hidden}
.cta::before{content:"";position:absolute;inset:auto 0 -40% 0;height:70%;background:radial-gradient(ellipse at center,rgba(124,92,255,.28),transparent 65%)}
.cta h2{font-size:clamp(28px,4vw,46px);position:relative}
.cta p{position:relative;margin:14px auto 28px;color:var(--mut);max-width:52ch}
.cta .hero-cta{position:relative}
.foot{background:var(--bg2)}
@media (max-width:980px){
 .bento{grid-template-columns:repeat(2,1fr)}
 .t-a,.t-b,.t-c,.t-d,.t-e,.t-f{grid-column:span 1}
 .t-a{grid-column:span 2}
 .t-f{grid-column:span 2;grid-template-columns:1fr}
 .steps3{grid-template-columns:1fr}
 .cards{grid-template-columns:1fr}
 .safe3{grid-template-columns:1fr}
}
@media (max-width:620px){
 .bento{grid-template-columns:1fr}
 .t-a,.t-f{grid-column:span 1}
 .hero h1{font-size:32px}
 .hero-cta .btn{width:100%}
 .t-b img{max-height:340px}
}