@font-face{font-family:"Archivo V";src:url(/fonts/archivo-latin-var.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"JB Mono V";src:url(/fonts/jbmono-latin-var.woff2) format("woff2");font-weight:100 800;font-display:swap}
@font-face{font-family:"SG Logo";src:url(/fonts/spacegrotesk-700.woff2) format("woff2");font-weight:700;font-display:block}
:root{--bg:#050409;--text:#f1eef7;--muted:#bdb7cb;--faint:#8f89a1;--line:#f1eef721;--logo-dot:#cf0;--cyan:#62e4d4;
--cjk:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
--f-sans:"Archivo V","Helvetica Neue",Arial,var(--cjk);--f-mono:"JB Mono V",ui-monospace,Menlo,Consolas,var(--cjk);color-scheme:dark}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;min-height:100vh;color:var(--text);font:400 1rem/1.7 var(--f-sans);-webkit-font-smoothing:antialiased;
background:radial-gradient(1200px 700px at 85% -10%,#2a1f4d33,transparent 60%),radial-gradient(900px 600px at -10% 110%,#0f3b3a2e,transparent 60%),var(--bg)}
a{color:var(--text);text-underline-offset:3px;text-decoration-color:#f1eef766}
a:hover{text-decoration-color:var(--text)}
.wrap{max-width:46rem;margin:0 auto;padding:clamp(1.25rem,4vw,3rem) clamp(1.25rem,5vw,2rem) 4rem}
header{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding-bottom:1.25rem;border-bottom:1px solid var(--line)}
.logo{font:700 1.5rem/1 "SG Logo","Space Grotesk",var(--f-sans);letter-spacing:-.05em;text-decoration:none;color:var(--text)}
.logo span{color:var(--logo-dot)}
.lang{display:flex;gap:.25rem}
.lang button{font:500 .75rem/1 var(--f-mono);letter-spacing:.06em;color:var(--muted);background:none;border:1px solid var(--line);border-radius:999px;padding:.5rem .8rem;cursor:pointer;min-height:36px}
.lang button[aria-pressed=true]{color:var(--bg);background:var(--text);border-color:var(--text)}
.eyebrow{font:500 .75rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin:2.5rem 0 .75rem}
h1{font-size:clamp(2rem,1.4rem + 2.6vw,3.2rem);line-height:1.08;letter-spacing:-.02em;font-weight:600;margin:0 0 .75rem}
h2{font-size:1.15rem;font-weight:600;margin:2.25rem 0 .5rem;letter-spacing:-.005em}
p,li{color:var(--muted)}
ul{padding-left:1.2rem}
li{margin:.3rem 0}
.date{font:400 .8rem/1.4 var(--f-mono);color:var(--faint)}
footer{margin-top:3.5rem;padding-top:1.25rem;border-top:1px solid var(--line);font:400 .8rem/1.6 var(--f-mono);color:var(--faint);display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:space-between}
footer a{color:var(--muted)}
[data-l]{display:none}
html[data-lang=en] [data-l=en],html[data-lang=zh-CN] [data-l=zh]{display:block}
html[data-lang=zh-CN] body{line-height:1.85}