:root{
  --bg:#0c110f; --fg:#e3e8e4; --dim:#7c8a82;
  --brass:#d4a259; --green:#3f5c4e; --line:#1b2420;
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font:400 15.5px/1.85 "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
a{color:var(--fg); text-decoration:none}
a:hover{color:var(--brass)}
.wrap{max-width:720px; margin:0 auto; padding:0 26px}
header{padding:44px 0 0}
header .wrap{display:flex; align-items:baseline; justify-content:space-between}
.logo{font-size:15px; letter-spacing:.18em; text-transform:uppercase}
.logo span{color:var(--brass)}
header nav{display:flex; gap:24px; font-size:13px}
header nav a{color:var(--dim)}
header nav a:hover{color:var(--brass)}
.tail{height:1px; background:var(--line); margin:24px 0 0}
main{padding:56px 0 84px}
h1{font-size:26px; font-weight:600; letter-spacing:-.005em; margin:0 0 10px}
.lead{color:var(--dim); font-size:14.5px; margin:0 0 54px}
.tl{position:relative; margin:0; padding:0 0 0 30px; list-style:none}
.tl::before{content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background:var(--line)}
.tl li{position:relative; padding:0 0 40px}
.tl li:last-child{padding-bottom:0}
.tl li::before{content:""; position:absolute; left:-29px; top:8px; width:9px; height:9px;
  border-radius:50%; background:var(--bg); border:1px solid var(--brass)}
.tl li:first-child::before{background:var(--brass)}
.tl .d{font-size:12px; color:var(--dim); letter-spacing:.1em; margin-bottom:7px}
.tl .d em{color:var(--brass); font-style:normal; margin-left:8px}
.tl h2{font-size:17px; font-weight:600; margin:0 0 7px; line-height:1.6}
.tl p{margin:0; color:var(--dim); font-size:14px}
article h1{margin-bottom:8px}
article .d{display:block; font-size:12px; color:var(--dim); letter-spacing:.1em; margin-bottom:32px}
article .d em{color:var(--brass); font-style:normal; margin-left:8px}
article p{margin:0 0 20px}
article h2{font-size:16.5px; font-weight:600; margin:36px 0 12px; color:var(--fg)}
article h2::before{content:"◆ "; color:var(--green); font-size:.8em}
pre{background:#101613; border:1px solid var(--line); padding:15px 16px; overflow:auto; font-size:13px; line-height:1.65}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace; font-size:.9em; color:var(--brass)}
footer{border-top:1px solid var(--line); margin-top:10px}
footer .wrap{padding:22px 26px; font-size:11.5px; color:var(--dim); letter-spacing:.1em; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px}
.nf h1{font-size:48px; color:var(--brass)}
@media(max-width:560px){ main{padding:38px 0 60px} h1{font-size:23px} .tl{padding-left:24px} }