:root{--red:#e02020;--red-d:#b01414;--red-50:#fff5f5;--red-100:#fbe8e8;--ink:#211b1b;--ink-2:#493b3b;--mute:#675e5e;--line:#ece4e4;--bg:#fff;--soft:#f8f6f6;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
a{color:var(--red);text-decoration:none}a:hover{color:var(--red-d)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.topbar{background:var(--red-d);color:#fff;font-size:13px}.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px;flex-wrap:wrap}.topbar a{color:#fff}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.brand img{height:44px;width:auto}.brand span{font-weight:700;font-size:15px;line-height:1.2}.brand small{display:block;font-weight:400;color:var(--mute);font-size:11px;letter-spacing:.02em}
nav.main{display:flex;gap:4px}nav.main a{color:var(--ink-2);padding:8px 12px;border-radius:8px;font-size:15px;white-space:nowrap}
nav.main a:hover{background:var(--red-50);color:var(--red)}nav.main a.on{color:#fff;background:var(--red)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:15px;color:var(--ink)}
@media(max-width:1020px){nav.main{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 24px;border-bottom:1px solid var(--line)}nav.main.open{display:flex}.menu-btn{display:block}}
.hero{position:relative;color:#fff;background:linear-gradient(120deg,var(--red-d) 0%,var(--red) 55%,#ff5a4a 100%);overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;background:rgba(255,255,255,.08)}
.hero .wrap{position:relative;z-index:1;padding:96px 24px 88px}
.hero h1{font-size:44px;line-height:1.25;margin:0 0 18px;letter-spacing:.01em}.hero p{font-size:18px;max-width:640px;opacity:.95;margin:0 0 30px}
.btn{display:inline-block;padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px}
.btn.w{background:#fff;color:var(--red)}.btn.o{border:1.5px solid rgba(255,255,255,.8);color:#fff;margin-left:10px}.btn.r{background:var(--red);color:#fff}.btn.r:hover{background:var(--red-d);color:#fff}
.pagehead{background:linear-gradient(120deg,var(--red-d),var(--red));color:#fff}.pagehead .wrap{padding:54px 24px 46px}.pagehead h1{margin:0;font-size:34px}.crumb{font-size:13px;opacity:.85;margin-top:8px}.crumb a{color:#fff}
section{padding:72px 0}section.soft{background:var(--soft)}
.eyebrow{color:var(--red);font-weight:700;letter-spacing:.12em;font-size:13px;text-transform:uppercase}
h2.t{font-size:32px;margin:6px 0 12px;line-height:1.3}.lead{color:var(--mute);max-width:720px;margin:0 0 36px}
.grid{display:grid;gap:22px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}.hero h1{font-size:32px}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card h3{margin:0 0 8px;font-size:19px}.card p{margin:0;color:var(--mute);font-size:15px}
.adv .card{border-top:4px solid var(--red)}.adv .num{font-size:28px;font-weight:800;color:var(--red-100);line-height:1}
.pcard{display:flex;flex-direction:column;gap:14px;color:var(--ink);transition:.2s}.pcard:hover{border-color:var(--red);box-shadow:0 10px 30px rgba(224,32,32,.12);transform:translateY(-2px);color:var(--ink)}
.pcard .ico{width:56px;height:56px;border-radius:14px;background:var(--red);display:flex;align-items:center;justify-content:center}.pcard .ico img{width:40px;height:40px;object-fit:contain;filter:brightness(0) invert(1)}
.pcard .more{color:var(--red);font-weight:600;font-size:14px;margin-top:auto}
.chips{display:flex;flex-wrap:wrap;gap:12px}.chip{background:#fff;border:1px solid var(--red-100);color:var(--red-d);padding:10px 18px;border-radius:999px;font-weight:600}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}@media(max-width:900px){.split{grid-template-columns:1fr}}
.photo{border-radius:var(--r);overflow:hidden}.photo img{width:100%}
.prose{max-width:900px}.prose h2,.prose h3{color:var(--ink);margin:36px 0 12px;padding-left:12px;border-left:4px solid var(--red);line-height:1.35}
.prose h2{font-size:24px}.prose h3{font-size:20px}.prose p{margin:0 0 14px;color:var(--ink-2)}
.prose ul{padding-left:22px;color:var(--ink-2)}.prose li{margin:4px 0}.prose li::marker{color:var(--red)}
.prose img{border-radius:12px;margin:18px 0;border:1px solid var(--line)}
.prose .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:16px 0}
.prose .box{background:var(--red-50);border:1px solid var(--red-100);border-radius:12px;padding:18px 20px}.prose .box h3,.prose .box dt{margin-top:0;border:0;padding:0;font-weight:700;color:var(--red-d);font-size:17px}
.prose dl,.prose dd{margin:0}
.tbl{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:560px}th,td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:center}
table>*:first-child>tr:first-child td,table>*:first-child>tr:first-child th,thead th{background:var(--red);color:#fff;font-weight:600}tr:nth-child(even) td{background:var(--soft)}
.prod-top{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:10px}@media(max-width:900px){.prod-top{grid-template-columns:1fr}}
.prod-top .lede{font-size:20px;font-weight:600;color:var(--ink);border:0;padding:0;margin:0 0 12px}
.side-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}.side-list a{border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:14px;color:var(--ink-2)}.side-list a.on,.side-list a:hover{border-color:var(--red);color:var(--red)}
.cta{background:linear-gradient(120deg,var(--red-d),var(--red));color:#fff;border-radius:20px;padding:44px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.cta h2{margin:0 0 6px;font-size:26px}.cta p{margin:0;color:#fff}.cta p a,.cta a[x-apple-data-detectors]{color:#fff!important;font-weight:700;text-decoration:underline;text-underline-offset:3px}.cta p a:hover{color:#ffe08a!important}
form.apply{display:grid;grid-template-columns:1fr 1fr;gap:16px}form.apply .full{grid-column:1/-1}
form.apply label{font-size:14px;font-weight:600;color:var(--ink-2)}form.apply input,form.apply textarea,form.apply select{width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
form.apply input:focus,form.apply textarea:focus,form.apply select:focus{outline:2px solid var(--red-100);border-color:var(--red)}
@media(max-width:600px){form.apply{grid-template-columns:1fr}}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}.steps div{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;font-weight:600}.steps div:before{content:counter(s,decimal-leading-zero);display:block;color:var(--red);font-size:22px;font-weight:800}
footer.site{background:#1c1616;color:#d9cfcf;padding:56px 0 24px;font-size:14px}footer.site a{color:#fff}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:36px}@media(max-width:900px){footer.site .cols{grid-template-columns:1fr}}
footer.site h4{color:#fff;margin:0 0 12px;font-size:15px}footer.site ul{list-style:none;padding:0;margin:0}footer.site li{margin:6px 0}
footer.site .logo{background:#fff;border-radius:10px;padding:8px 12px;display:inline-block;margin-bottom:12px}footer.site .logo img{height:36px}
footer.site .copy{border-top:1px solid #3a2e2e;margin-top:36px;padding-top:18px;color:#9c8f8f;font-size:12px}
.lang{position:relative;font-size:14px}.lang summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:7px 12px;white-space:nowrap;color:var(--ink-2)}.lang summary::-webkit-details-marker{display:none}
.lang div{position:absolute;right:0;top:42px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.1);padding:8px;display:flex;flex-direction:column;min-width:150px;z-index:80}.lang div a{padding:7px 12px;border-radius:8px;color:var(--ink-2)}.lang div a:hover,.lang div a.on{background:var(--red-50);color:var(--red)}
[dir=rtl] .lang div{right:auto;left:0}[dir=rtl] .prose h2,[dir=rtl] .prose h3{border-left:0;border-right:4px solid var(--red);padding-left:0;padding-right:12px}[dir=rtl] .float{right:auto;left:18px}[dir=rtl] .btn.o{margin-left:0;margin-right:10px}
header.site .wrap>.lang{margin-left:auto}@media(min-width:1021px){header.site .wrap>.lang{margin-left:0}}
html:not([lang=zh-CN]) .brand span{display:none}html:not([lang=zh-CN]) nav.main a{font-size:14px;padding:8px 8px}.brand{flex-shrink:0}nav.main{gap:2px}
@media(max-width:1240px){html:not([lang=zh-CN]) nav.main{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 24px;border-bottom:1px solid var(--line)}html:not([lang=zh-CN]) nav.main.open{display:flex}html:not([lang=zh-CN]) .menu-btn{display:block}html:not([lang=zh-CN]) header.site .wrap>.lang{margin-left:auto}}
.mcard img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;margin:-6px 0 2px}.mcard{padding:18px}
.faq{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0;background:#fff}.faq summary{cursor:pointer;font-weight:600;color:var(--ink)}.faq p{margin:10px 0 0}
.svc{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.float{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}.float a{width:48px;height:48px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(224,32,32,.35);font-size:20px}