:root{--bg:#0b0c10;--panel:#141724;--line:#22273a;--text:#f3f4f6;--muted:#98a0b3;
--brand:#ff7a45;--brand-2:#2d8cff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);
font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:#7ab8ff;text-decoration:none}
a:hover{text-decoration:underline}
.layout{display:flex;max-width:1240px;margin:0 auto;padding:0 20px;gap:32px}
header.site-header{border-bottom:1px solid var(--line);background:rgba(11,12,16,.92);
position:sticky;top:0;z-index:10;backdrop-filter:blur(8px)}
.site-header .inner{display:flex;align-items:center;gap:18px;max-width:1240px;margin:0 auto;padding:0 20px;height:62px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text);font-size:17px}
.brand-mark{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:14px}
.site-nav{display:flex;gap:16px;margin-left:auto;flex-wrap:wrap}
.site-nav a{color:var(--muted);font-size:15px}
.site-nav a[aria-current]{color:var(--text)}
.btn{display:inline-block;padding:8px 16px;border-radius:10px;border:1px solid var(--line);color:var(--text);font-size:15px}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border:0;color:#fff;font-weight:600}
aside{flex:0 0 246px;padding:28px 0 60px;position:sticky;top:62px;max-height:calc(100vh - 62px);overflow-y:auto}
aside .group{color:var(--muted);font-size:13px;margin:16px 0 6px;letter-spacing:.04em}
aside a{display:block;padding:4px 0;color:#c3cad8;font-size:14.5px}
aside a[aria-current]{color:var(--brand)}
main{flex:1;min-width:0;padding:28px 0 72px}
.breadcrumb{color:var(--muted);font-size:14px;margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
h1{font-size:29px;line-height:1.35;margin:0 0 10px}
h2{font-size:21px;margin:34px 0 12px;padding-left:11px;border-left:3px solid var(--brand)}
h3{font-size:17px;margin:24px 0 8px}
p{margin:0 0 14px}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin:6px 0}
blockquote{margin:0 0 16px;padding:12px 16px;border-left:3px solid var(--brand-2);
background:var(--panel);border-radius:0 10px 10px 0;color:#cfd5e4}
code{background:#191d2b;padding:2px 6px;border-radius:6px;font-size:14px;
font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
pre{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;background:#11141f;
padding:14px 16px;border-radius:12px;border:1px solid var(--line);margin:0 0 18px}
pre code{background:none;padding:0;font-size:14px;line-height:1.6}
table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:15px;display:block;overflow-x:auto}
th,td{border:1px solid var(--line);padding:9px 12px;text-align:left;white-space:nowrap}
th{background:var(--panel);color:#cfd5e4;font-weight:600}
.meta{color:var(--muted);font-size:14px;margin-bottom:22px}
.cta{margin:34px 0;padding:20px;border-radius:14px;border:1px solid var(--line);
background:linear-gradient(135deg,rgba(255,122,69,.10),rgba(45,140,255,.10))}
.cta h3{margin:0 0 8px}
.cta p{margin:0 0 14px;color:var(--muted)}
.post-links{margin:32px 0 4px;padding:18px 20px;border:1px solid var(--line);
border-radius:14px;background:var(--panel)}
.post-links h2{border:0;padding:0;font-size:17px;margin:0 0 10px}
.post-links ul{list-style:none;padding:0;margin:0}
.post-links li{padding:6px 0}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .inner{max-width:1240px;margin:0 auto;padding:20px;display:flex;gap:16px;flex-wrap:wrap}
@media(max-width:900px){
  aside{display:none}
  .layout{padding:0 16px}
  h1{font-size:24px}
  pre{font-size:13px}
}
/* 窄屏顶栏：导航改成横向滚动，永远不会把品牌或「立即创作」挤出屏幕。 */
@media(max-width:640px){
  .site-header .inner{gap:12px}
  .brand{font-size:15px;flex:0 0 auto}
  .site-nav{
    flex:1 1 auto;min-width:0;flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;
    justify-content:flex-end;-webkit-overflow-scrolling:touch;scrollbar-width:none
  }
  .site-nav::-webkit-scrollbar{display:none}
  .site-nav a{font-size:13.5px}
  .site-nav .btn{padding:6px 12px;font-size:13.5px;white-space:nowrap}
}