:root{color-scheme:light dark;--bg:#f6f8f7;--text:#182c25;--muted:#52635b;--line:#cbd5ce;--accent:#285b45;--panel:#e7eeea}
*{box-sizing:border-box}
html{scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:5px}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:3px solid var(--accent);outline-offset:6px}
.skip{position:absolute;left:24px;top:-100px;padding:8px 16px;background:var(--bg)}
.skip:focus{top:12px}
.page{width:min(1120px,calc(100% - 80px));margin:auto}
header{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}
.brand{font-size:28px;letter-spacing:-.02em;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}
.brand span{font-size:14px;font-weight:500;letter-spacing:.08em;margin-left:12px}
.nav-link{font-size:14px;padding:8px 0;white-space:nowrap}
.intro{padding:80px 0 64px;max-width:760px}
h1{font-size:clamp(34px,5vw,60px);font-weight:650;line-height:1.25;letter-spacing:-.025em;margin:0 0 20px;text-wrap:balance}
.lead{font-size:22px;margin:0 0 22px;font-weight:500}
.description{max-width:560px;margin:0;color:var(--muted);font-size:17px}
h2{font-size:22px;font-weight:600;margin:0 0 12px;line-height:1.4}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:40px;background:var(--panel)}
.contact p{font-size:15px;color:var(--muted);margin:0;max-width:360px}
.email{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px}
.email>span{font-size:14px;color:var(--muted)}
.email a{font-size:clamp(21px,2.6vw,30px);line-height:1.5;font-weight:550;overflow-wrap:anywhere}
.email .hint{font-size:13px;margin-top:4px}
.identity{display:grid;grid-template-columns:1fr 2fr;gap:48px;padding:48px 0}
dl{margin:0;display:grid;grid-template-columns:1.6fr 1fr;gap:32px}
dt{font-size:14px;color:var(--muted);margin-bottom:6px}
dd{font-size:16px;margin:0;overflow-wrap:anywhere}
footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 24px;border-top:1px solid var(--line);padding:24px 0 32px;font-size:13px;color:var(--muted)}
footer a{color:var(--muted)}
@media(max-width:767px){.page{width:calc(100% - 40px)}header{height:72px;gap:16px}.brand{font-size:26px}.brand span{font-size:12px;margin-left:8px;letter-spacing:0}.nav-link{font-size:13px}.intro{padding:52px 0 40px}.lead{font-size:19px}.description{font-size:16px}.contact{grid-template-columns:1fr;gap:28px;padding:28px 24px}.identity{grid-template-columns:1fr;gap:20px;padding:36px 0}dl{grid-template-columns:1fr;gap:20px}footer{flex-direction:column;gap:8px}}
@media(prefers-color-scheme:dark){:root{--bg:#15211c;--text:#e8eeea;--muted:#b5c4ba;--line:#47594d;--accent:#a9d5b9;--panel:#23372c}}