:root{--slate:#334155;--ice:#F8FAFC;--orange:#EA580C;--line:#E2E8F0;--muted:#475569}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Tahoma","Segoe UI","Microsoft YaHei",sans-serif;background:var(--ice);color:var(--slate);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
img,svg{display:block}
.wrap{width:min(1100px,calc(100% - 36px));margin:0 auto}
header{background:var(--slate);color:#fff;position:sticky;top:0;z-index:20}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
nav{display:flex;flex-wrap:wrap;gap:8px 16px;justify-content:flex-end}
nav a{color:#E2E8F0;font-size:14px}
nav a:hover{color:#fff}
.hero{padding:42px 0 28px;text-align:left}
.hero h1{font-size:32px;line-height:1.3;margin-bottom:16px;max-width:18em}
.hero p{max-width:42em;margin-bottom:10px;color:var(--muted)}
.sec{padding:32px 0}
.sec h2{font-size:24px;line-height:1.35;margin-bottom:14px}
.lead{color:var(--muted);margin-bottom:16px;max-width:46em}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);padding:18px 16px}
.card .ico{width:40px;height:40px;border-radius:8px;background:#FFF7ED;color:var(--orange);display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px;margin-bottom:8px}
.card p:last-child{margin-bottom:0}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}
th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);font-size:14px}
th{background:var(--slate);color:#fff;font-weight:600}
td{color:var(--muted)}
tr:last-child td{border-bottom:0}
.vsteps{display:grid;gap:0;border-left:3px solid #FED7AA;margin:18px 0 0 12px}
.vstep{display:grid;grid-template-columns:48px 1fr;gap:12px;padding:0 0 22px 18px;position:relative}
.vstep .n{width:36px;height:36px;border-radius:50%;background:var(--orange);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;position:relative;left:-40px}
.vstep h3{font-size:17px;margin-bottom:6px}
.vstep p{color:var(--muted);font-size:15px}
.fake{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fake article{background:#fff;border-top:4px solid var(--orange);padding:18px;border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.g-faq{border-left:4px solid var(--orange);background:#fff;margin:10px 0;padding:0}
.g-faq summary{padding:14px 16px;cursor:pointer;font-weight:700}
.faq-body{padding:0 16px 14px}
.faq-body p{color:var(--muted)}
footer{background:var(--slate);color:#CBD5E1;margin-top:28px;padding:28px 0}
.ft p{margin-bottom:8px;font-size:14px}
@media (max-width:900px){
.bar{flex-direction:column;align-items:flex-start;padding:12px 0}
.grid3,.fake{grid-template-columns:1fr}
}