:root{--bg:#f7f8fc;--card:#fff;--ink:#171a2b;--muted:#69708a;--line:#e8eaf3;
--pri:#4f46e5;--pri2:#7c5cf0;--warm:#ff5a36;--warm2:#ff9d00;
--shadow:0 4px 18px rgba(30,34,70,.06),0 18px 44px rgba(30,34,70,.06)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 -webkit-font-smoothing:antialiased}
a{color:var(--pri);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.site-head{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line)}
.head-in{max-width:1080px;margin:0 auto;padding:11px 20px;display:flex;align-items:center;
 justify-content:space-between;gap:16px;flex-wrap:wrap;min-width:0}
.brand{font-weight:800;font-size:19px;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}
.brand:hover{text-decoration:none}
.brand i{display:inline-block;width:9px;height:9px;border-radius:3px;background:linear-gradient(135deg,var(--warm),var(--warm2));margin-right:8px}
.brand small{font-weight:500;font-size:11px;color:var(--muted);margin-left:8px;letter-spacing:0}
.nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;min-width:0;max-width:100%}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:7px 11px;border-radius:9px;font-size:13.5px;color:#555c75;white-space:nowrap;font-weight:600}
.nav a:hover{background:#f0f1fa;text-decoration:none}
.nav a.on{background:var(--pri);color:#fff}
main{min-height:60vh}
.hero{background:radial-gradient(900px 420px at 85% -10%,rgba(255,154,0,.22),transparent 60%),
 linear-gradient(135deg,#4f46e5,#7c5cf0 60%,#a45cf5);color:#fff;padding:64px 0 58px}
.hero h1{font-size:clamp(28px,5.2vw,46px);line-height:1.24;margin:0 0 16px;font-weight:800;letter-spacing:-1px}
.hero p.lead{font-size:clamp(15px,2.3vw,18px);opacity:.94;max-width:660px;margin:0 0 26px}
.hero .tagline{display:inline-block;font-size:12px;letter-spacing:1px;background:rgba(255,255,255,.18);
 border:1px solid rgba(255,255,255,.3);padding:6px 14px;border-radius:999px;margin-bottom:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:13px;
 font-weight:700;font-size:15px;border:0;cursor:pointer;transition:.16s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-w{background:#fff;color:#4338ca;box-shadow:0 8px 24px rgba(20,16,60,.2)}
.btn-g{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-p{background:var(--pri);color:#fff;box-shadow:0 8px 22px rgba(79,70,229,.26)}
.btn-o{background:#fff;color:var(--pri);border:1.5px solid var(--line)}
.btn-warm{background:linear-gradient(135deg,var(--warm),var(--warm2));color:#fff;box-shadow:0 8px 22px rgba(255,90,54,.28)}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px;font-size:13px;opacity:.92;max-width:100%;min-width:0}
.hero-stats b{display:block;font-size:24px;line-height:1.2}
.sec{padding:52px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:2px;color:var(--pri);margin:0 0 10px}
h2.sec-t{font-size:clamp(22px,3.6vw,32px);margin:0 0 12px;font-weight:800;letter-spacing:-.6px;line-height:1.35}
.sec-d{color:var(--muted);max-width:720px;margin:0 0 30px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.card .ic{width:42px;height:42px;border-radius:12px;background:#eef0ff;color:var(--pri);display:flex;
 align-items:center;justify-content:center;font-size:20px;font-weight:800;margin-bottom:14px}
.card h3{margin:0 0 8px;font-size:17px;font-weight:750}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.card ul{margin:10px 0 0;padding-left:19px;color:var(--muted);font-size:14px}
.card li{margin:5px 0}
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:start}
.shot{background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow)}
.shot img{border-radius:10px;border:1px solid #eceef5;width:100%}
.shot span{display:block;text-align:center;font-size:12px;color:var(--muted);padding:9px 0 2px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;position:relative}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:18px;right:20px;font-size:30px;
 font-weight:800;color:#eceeff}
.step h3{margin:0 0 8px;font-size:16px}
.step p{margin:0;color:var(--muted);font-size:14px}
.note{background:#fff8ed;border:1px solid #ffe2b8;border-radius:14px;padding:16px 18px;color:#7a4a08;font-size:14px}
.note b{color:#8a3d00}
.ok{background:#eefaf3;border:1px solid #c9efdb;color:#12673d}
.table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;font-size:14px}
.table th,.table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;word-break:break-word}
.table th{background:#f3f4fb;font-weight:700}
.table tr:last-child td{border-bottom:0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;font-size:15px}
.faq details p{margin:10px 0 0;color:var(--muted);font-size:14px}
.crumb{font-size:12.5px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}
.page-h{padding:34px 0 8px}
.page-h h1{font-size:clamp(24px,4vw,36px);margin:0 0 10px;font-weight:800;letter-spacing:-.7px}
.page-h p{color:var(--muted);margin:0;max-width:760px}
.dl-box{background:linear-gradient(135deg,#fff,#fff6f1);border:1px solid #ffe0cf;border-radius:20px;
 padding:26px;display:flex;gap:22px;align-items:center;flex-wrap:wrap}
.dl-box .txt{flex:1;min-width:240px}
.dl-box h3{margin:0 0 6px;font-size:20px}
.dl-box p{margin:0;color:var(--muted);font-size:14px}
.site-foot{background:#171a2b;color:#c9cde0;padding:38px 0 26px;margin-top:20px;font-size:13px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.site-foot h4{color:#fff;font-size:14px;margin:0 0 12px}
.site-foot a{display:block;color:#aeb4ce;padding:4px 0}
.site-foot a:hover{color:#fff}
.foot-b{border-top:1px solid #2b2f45;margin-top:26px;padding-top:18px;color:#8b91ad;font-size:12px}
.pill{display:inline-block;background:#eef0ff;color:var(--pri);border-radius:999px;padding:3px 11px;
 font-size:12px;font-weight:700;margin:0 6px 6px 0}
code{background:#f1f2f9;border-radius:6px;padding:2px 7px;font-size:13px;word-break:break-all}
pre{background:#171a2b;color:#dfe3f5;padding:16px;border-radius:12px;overflow-x:auto;font-size:13px;line-height:1.7}
pre code{background:none;color:inherit;padding:0}
@media(max-width:860px){.grid,.steps{grid-template-columns:repeat(2,1fr)}.shots{grid-template-columns:repeat(2,1fr)}}
@media(max-width:580px){
 body{font-size:15px}.wrap{padding:0 16px}.head-in{padding:10px 16px;gap:8px}
 .brand{font-size:17px}.brand small{display:none}
 .nav{flex:1 1 100%;width:100%}
 .hero{padding:44px 0 42px}.sec{padding:38px 0}
 .grid,.grid.g2,.steps,.shots,.foot-grid{grid-template-columns:1fr}
 .shots{grid-template-columns:repeat(2,1fr)}
 .cta .btn{width:100%}.hero-stats{gap:18px}
 .dl-box{padding:20px}.table{font-size:13px}
}