.site{--ink:#1b1b22;--sub:#5f5f6d;--faint:#8b8b99;--line:#ececf3;--brand:#ff7a45;--bg-soft:#fbfaf8;color:var(--ink);font:15px/1.85 -apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;background:#fff;-webkit-font-smoothing:antialiased}.site *{box-sizing:border-box}.site-wrap{max-width:1040px;margin:0 auto;padding:0 20px}.site-nav{border-bottom:1px solid var(--line);position:-webkit-sticky;position:sticky;top:0;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(180%) blur(10px);backdrop-filter:saturate(180%) blur(10px);z-index:10}.site-nav .site-wrap{display:flex;align-items:center;gap:14px;height:62px}.site-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;text-decoration:none;color:var(--ink)}.site-logo img{width:32px;height:32px;border-radius:8px}.site-nav nav{margin-left:auto;display:flex;gap:20px}.site-nav nav a{color:var(--sub);text-decoration:none;font-size:14px}.site-nav nav a:hover{color:var(--brand)}.hero{padding:64px 0 52px;background:linear-gradient(180deg,#fff7f3,#fff)}.hero h1{margin:0 0 14px;font-size:38px;line-height:1.35;letter-spacing:-.5px}.hero .lead{margin:0 0 8px;font-size:17px;color:var(--sub);max-width:660px}.hero .sub{margin:0 0 26px;color:var(--faint);font-size:14px;max-width:660px}.btn-row{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-block;padding:11px 22px;border-radius:999px;text-decoration:none;font-size:15px;font-weight:700;border:1px solid transparent}.btn-primary{background:var(--brand);color:#fff}.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}.sec{padding:54px 0;border-top:1px solid var(--line)}.sec.soft{background:var(--bg-soft)}.sec h2{margin:0 0 6px;font-size:24px}.sec .desc{margin:0 0 28px;color:var(--sub);font-size:15px;max-width:720px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));grid-gap:16px;gap:16px}.card{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff}.card h3{margin:0 0 6px;font-size:16px}.card p{margin:0;color:var(--sub);font-size:13.5px;line-height:1.75}.shots{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));grid-gap:18px;gap:18px}.shot figure{margin:0}.shot img{width:100%;border:1px solid var(--line);border-radius:14px;display:block;background:#fff}.shot figcaption{margin-top:8px;text-align:center;font-size:13px;color:var(--faint)}.doc{padding:40px 0 70px;max-width:820px}.doc h1{font-size:27px;margin:0 0 6px}.doc .meta{color:var(--faint);font-size:13.5px;margin:0 0 26px}.doc h2{font-size:19px;margin:32px 0 10px}.doc h3{font-size:16px;margin:22px 0 8px}.doc li,.doc p{color:#35353f;font-size:15px;overflow-wrap:anywhere}.doc ol,.doc ul{padding-left:22px}.doc table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px}.doc td,.doc th{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}.doc th{background:var(--bg-soft)}.note{border-left:3px solid var(--brand);background:#fff7f3;padding:12px 14px;border-radius:0 8px 8px 0;color:#5a4436;font-size:14px;margin:16px 0}.site-foot{border-top:1px solid var(--line);padding:30px 0 42px;color:var(--faint);font-size:13.5px;background:var(--bg-soft)}.site-foot a{color:var(--sub);text-decoration:none}.site-foot a:hover{color:var(--brand)}.foot-links{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:10px}.foot-line{margin:3px 0}@media (max-width:640px){.hero{padding:44px 0 36px}.hero h1{font-size:28px}.site-nav nav{gap:14px}}