:root{color-scheme:light;--blue:#176ef5;--ink:#18283d;--muted:#64748b;--line:#e3eaf3;--surface:#f6f8fc}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--surface);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.9;-webkit-text-size-adjust:100%}
a{color:var(--blue);text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
a:focus-visible{outline:3px solid #94beff;outline-offset:5px;border-radius:3px}
.site-header{background:#fff;border-bottom:1px solid var(--line)}
.header-inner{max-width:1060px;margin:auto;min-height:80px;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-weight:750;font-size:23px;letter-spacing:1px;text-decoration:none;white-space:nowrap}
.brand img{width:46px;height:46px;object-fit:contain;background:white;border-radius:8px}
.header-nav{display:flex;align-items:center;gap:24px;font-size:14px}
.header-nav a{text-decoration:none;white-space:nowrap}
.header-nav .login{border:1px solid #c5d8f7;border-radius:9px;padding:5px 15px}
main{max-width:900px;margin:44px auto 36px;padding:0 24px}
.document{background:white;border:1px solid var(--line);border-radius:18px;padding:45px 56px 48px;box-shadow:0 8px 32px #20334d05}
.document-header{padding-bottom:29px;margin-bottom:32px;border-bottom:1px solid var(--line)}
.eyebrow{margin:0 0 8px;color:var(--blue);font-size:13px;font-weight:650;letter-spacing:.1em}
h1{font-size:32px;line-height:1.4;letter-spacing:.02em;margin:0 0 13px;font-weight:750}
.date{font-size:14px;color:var(--muted);margin:0}
section{margin-top:30px;scroll-margin-top:32px}
h2{font-size:19px;line-height:1.6;margin:0 0 12px;font-weight:700;color:#152d4c}
p{margin:0 0 13px;overflow-wrap:anywhere}
section p:last-child{margin-bottom:0}
.document-footer{border-top:1px solid var(--line);margin-top:38px;padding-top:25px;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14px}
.site-footer{max-width:900px;margin:0 auto;padding:0 24px 38px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--muted);font-size:13px}
.site-footer a{color:var(--muted)}
@media(max-width:600px){.header-inner{padding:13px 18px;min-height:70px;gap:12px}.brand{font-size:20px;gap:7px}.brand img{width:39px;height:39px}.header-nav{gap:14px;font-size:13px}.header-nav .login{padding:4px 10px}main{margin-top:22px;padding:0 14px}.document{padding:28px 22px 30px;border-radius:13px}.document-header{padding-bottom:22px;margin-bottom:25px}h1{font-size:27px}h2{font-size:18px}body{font-size:15px;line-height:1.95}section{margin-top:27px}.site-footer{padding:0 18px 28px;align-items:flex-start;flex-direction:column;gap:6px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:#fff;font-size:11pt;color:#111}.site-header,.site-footer,.document-footer{display:none}main{max-width:none;margin:0;padding:0}.document{padding:0;border:0;box-shadow:none}.document-header{margin-bottom:20px;padding-bottom:15px}h1{font-size:24pt}h2{font-size:13pt;break-after:avoid}p{orphans:3;widows:3}a{color:inherit;text-decoration:none}section{margin-top:20px}}