:root{--y:#ffc21a;--y2:#ffde3b;--o:#ff8a1f;--ink:#222;--mut:#666;--bg:#fafafa;--line:#eee;--ok:#22b14c;--r:16px}
*{box-sizing:border-box;margin:0;padding:0}body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:9;background:#fff;box-shadow:0 1px 8px rgba(0,0,0,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:24px;font-style:italic}.logo svg{width:30px}
.nav ul{display:flex;list-style:none;gap:4px;align-items:center}.nav ul a{display:block;padding:0 18px;line-height:62px;border-bottom:2px solid transparent}
.nav ul a.on,.nav ul a:hover{color:var(--o);border-color:var(--o)}.lang{border:1px solid var(--line);border-radius:20px;line-height:30px!important;padding:0 14px!important;margin-left:8px}
.hero{background:radial-gradient(#e6e6e6 1.4px,transparent 1.5px) 0 0/14px 14px,var(--bg);padding:70px 0 120px;border-radius:0 0 60px 60px}
.hero .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
h1{font-size:40px;line-height:1.3}.sub{font-size:30px;font-weight:700;color:var(--o);margin:6px 0 24px}
.checks{list-style:none}.checks li{padding-left:26px;position:relative;margin:8px 0;color:#444;letter-spacing:.5px}
.checks li:before{content:"✓";position:absolute;left:0;top:4px;width:17px;height:17px;border-radius:50%;background:var(--ok);color:#fff;font-size:11px;text-align:center;line-height:17px}
.btns{display:flex;gap:12px;margin:32px 0 16px;flex-wrap:wrap}.btn{display:inline-block;padding:10px 38px;border-radius:30px;font-size:16px;border:1px solid var(--ink)}
.btn.p{border:0;background:linear-gradient(90deg,var(--y),var(--y2));box-shadow:0 6px 16px rgba(255,194,26,.35)}.btn:hover{transform:translateY(-1px)}
.badge{color:var(--mut);font-weight:600;letter-spacing:2px}.badge:before{content:"🛡 ";}
.hero img{border-radius:28px}
section{padding:80px 0}h2{text-align:center;font-size:32px;margin-bottom:46px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;text-align:center;transition:.2s}
.card:hover{box-shadow:0 12px 30px rgba(0,0,0,.08);transform:translateY(-4px)}.ic{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--y2),var(--o));display:grid;place-items:center;font-size:28px}
.card h3{margin-bottom:8px}.card p{color:var(--mut);font-size:15px}
.gray{background:var(--bg)}.stats{display:flex;justify-content:center;gap:90px;margin-bottom:46px;text-align:center}.stats b{display:block;font-size:44px;color:var(--o)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}.two .card{text-align:left}
.row{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;margin-bottom:40px}.row h3{font-size:24px;margin-bottom:6px}.row strong{display:block;color:var(--o);margin-bottom:10px}.row p{color:var(--mut)}
.cta{background:linear-gradient(90deg,var(--y),var(--y2));border-radius:30px;padding:50px;text-align:center}.cta h2{margin-bottom:16px}.cta .btn{background:#222;color:#fff;border:0}
.page-hd{background:var(--bg);padding:56px 0;text-align:center}.page-hd p{color:var(--mut);margin-top:8px}
.crumb{font-size:14px;color:var(--mut);margin-bottom:10px}.crumb a{color:var(--o)}
.dl{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.dl .btn{margin-top:14px;padding:8px 26px}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.plan{position:relative;border:2px solid var(--line);border-radius:var(--r);padding:30px 20px;text-align:center}
.plan.hot{border-color:var(--y)}.plan .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--o);color:#fff;font-size:12px;padding:2px 12px;border-radius:12px}
.plan .pr{font-size:34px;font-weight:800;margin:10px 0}.plan .d{color:var(--o)}.feat{max-width:640px;margin:40px auto 0}
.faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;padding:18px 22px}.faq summary{cursor:pointer;font-weight:600;font-size:17px}.faq details p{margin-top:10px;color:var(--mut)}
.doc{max-width:860px}.doc h2{text-align:left;font-size:22px;margin:30px 0 10px}.doc p,.doc li{color:#444;margin-bottom:8px}.doc ul{padding-left:22px}
footer{background:#1d1d1f;color:#bbb;padding:50px 0 24px;font-size:14px}.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}footer h4{color:#fff;margin-bottom:12px}footer li{list-style:none;margin:6px 0}footer a:hover{color:var(--y)}
.copy{border-top:1px solid #333;margin-top:30px;padding-top:18px;text-align:center}
@media(max-width:900px){.hero .wrap,.two,.row,.grid3{grid-template-columns:1fr}.dl,.plans{grid-template-columns:1fr 1fr}.nav ul a{padding:0 8px;font-size:14px}.nav ul li.hide{display:none}h1{font-size:30px}.stats{gap:30px}.fgrid{grid-template-columns:1fr 1fr}}