:root{
  --bg:#070a12;--fg:#e6edf7;--muted:#8b9ab3;
  --card:linear-gradient(180deg,rgba(20,28,46,.86),rgba(14,20,34,.86));
  --card-line:rgba(125,165,225,.16);--line:rgba(125,165,225,.14);--line-strong:rgba(56,189,248,.45);
  --link:#7dd3fc;--link-hover:#a5f3fc;
  --cyan:#22d3ee;--violet:#a78bfa;--tag:rgba(125,165,225,.10);
  --shadow:0 10px 34px rgba(0,0,0,.42);
}
@media (prefers-color-scheme:light){
  :root{
    --bg:#f4f7fc;--fg:#0f172a;--muted:#5c6b85;
    --card:linear-gradient(180deg,#ffffff,#fbfdff);
    --card-line:rgba(30,64,140,.14);--line:rgba(30,64,140,.12);--line-strong:rgba(14,116,200,.4);
    --link:#0369a1;--link-hover:#075985;
    --cyan:#0891b2;--violet:#6d28d9;--tag:rgba(30,64,140,.07);
    --shadow:0 8px 26px rgba(15,23,42,.08);
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--fg);font:16px/1.72 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(1100px 560px at 12% -8%,rgba(34,211,238,.10),transparent 62%),
    radial-gradient(900px 480px at 92% -4%,rgba(167,139,250,.10),transparent 58%),
    var(--bg);
  background-attachment:fixed;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(125,180,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(125,180,255,.05) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 120% 70% at 50% 0%,#000 18%,transparent 78%);
  mask-image:radial-gradient(ellipse 120% 70% at 50% 0%,#000 18%,transparent 78%);
}
.wrap{position:relative;z-index:1;max-width:840px;margin:0 auto;padding:34px 18px 80px}
header.site{padding:6px 0 20px;margin-bottom:28px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:14px}
.logo{
  position:relative;flex:none;width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,rgba(34,211,238,.16),rgba(167,139,250,.16));
  border:1px solid var(--line-strong);
  animation:pulse 3.8s ease-in-out infinite;
}
.logo::before{
  content:"";position:absolute;inset:11px;border-radius:3px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  transform:rotate(45deg);
}
.logo::after{
  content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;
  margin:-2.5px 0 0 -2.5px;border-radius:50%;background:var(--bg);
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 14px rgba(34,211,238,.18),inset 0 0 12px rgba(34,211,238,.06)}
  50%{box-shadow:0 0 26px rgba(34,211,238,.40),inset 0 0 16px rgba(34,211,238,.14)}
}
@media (prefers-reduced-motion:reduce){.logo{animation:none}}
.titles{min-width:0}
.titles .en{
  margin:0 0 4px;font:600 .68rem/1 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:.24em;color:var(--cyan);text-transform:uppercase;opacity:.9;
}
header.site h1{margin:0;font-size:1.66rem;font-weight:800;letter-spacing:-.01em;line-height:1.15}
header.site h1 a{
  background:linear-gradient(94deg,var(--cyan),#60a5fa 42%,var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;text-decoration:none;
}
.stats{
  display:flex;flex-wrap:wrap;gap:9px;margin:16px 0 0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem;
}
.stats span{
  padding:3px 11px;border-radius:9px;color:var(--muted);
  border:1px solid var(--line);background:var(--tag);white-space:nowrap;
}
.stats b{
  font-weight:700;
  background:linear-gradient(var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
header.site .desc{margin:14px 0 0;color:var(--muted);font-size:.9rem;max-width:62ch}
header.site nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
header.site nav a{
  padding:4px 13px;border-radius:999px;font-size:.84rem;color:var(--muted);
  border:1px solid var(--line);background:var(--tag);text-decoration:none;
  transition:color .16s,border-color .16s,background .16s,box-shadow .16s;
}
header.site nav a:hover{
  color:var(--fg);border-color:var(--line-strong);
  background:rgba(34,211,238,.10);box-shadow:0 0 0 1px rgba(34,211,238,.18) inset;
}
a{color:var(--link);text-decoration:none;transition:color .15s}
a:hover{color:var(--link-hover);text-decoration:underline;text-underline-offset:3px}
h1{font-size:1.55rem;line-height:1.35;letter-spacing:-.01em;margin:0 0 8px}
h2{
  display:flex;align-items:center;gap:12px;
  font-size:1.1rem;font-weight:700;letter-spacing:.01em;
  margin:42px 0 16px;padding-bottom:11px;border-bottom:1px solid var(--line);
}
h2::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent)}
h3{font-size:1.01rem;font-weight:600;margin:0 0 7px;line-height:1.5}
.meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  margin:0 0 9px;font-size:.8rem;color:var(--muted);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.sum{margin:0 0 5px;font-size:.94rem}
.why{margin:0;font-size:.9rem;color:var(--muted)}
.dup{color:var(--muted);font-size:.82rem;margin:8px 0 0;opacity:.85}
.pick,.item{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid var(--card-line);border-radius:14px;
  padding:15px 17px;margin:0 0 12px;
  transition:border-color .18s,transform .18s,box-shadow .18s;
}
.pick:hover,.item:hover{
  border-color:var(--line-strong);transform:translateY(-2px);
  box-shadow:var(--shadow),0 0 22px rgba(34,211,238,.16);
}
.pick{padding-left:20px}
.pick::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:linear-gradient(var(--cyan),var(--violet));
}
.num{
  display:inline-block;min-width:1.9em;
  font:800 .92rem/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:linear-gradient(var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.tag{
  display:inline-block;padding:1px 8px;border-radius:6px;
  background:var(--tag);border:1px solid transparent;
  font:500 .75rem/1.7 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--muted);white-space:nowrap;
}
.tag.src{color:var(--fg);border-color:var(--line)}
article[data-src=github] .tag.src{color:#c4b5fd;border-color:rgba(196,181,253,.35)}
article[data-src=youtube] .tag.src{color:#fda4af;border-color:rgba(253,164,175,.35)}
article[data-src=paper] .tag.src{color:#93c5fd;border-color:rgba(147,197,253,.35)}
article[data-src=blog] .tag.src{color:#6ee7b7;border-color:rgba(110,231,183,.35)}
article[data-src=hackernews] .tag.src{color:#fcd34d;border-color:rgba(252,211,77,.35)}
.date{
  margin-left:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.76rem;color:var(--muted);opacity:.75;
}
blockquote{
  margin:0 0 24px;padding:12px 16px;border-radius:0 12px 12px 0;
  border-left:2px solid var(--line-strong);background:var(--tag);
  color:var(--muted);font-size:.88rem;
}
blockquote p{margin:0}
.warn{
  margin:0 0 24px;padding:13px 17px;border-radius:12px;font-size:.88rem;
  background:rgba(251,191,36,.07);border:1px solid rgba(251,191,36,.28);
  border-left:2px solid #fbbf24;
}
.warn strong{color:#fcd34d}
.warn p{margin:0}
.warn ul{margin:8px 0 0;padding-left:20px}
.warn li{margin:2px 0}
footer{
  margin-top:56px;padding-top:20px;border-top:1px solid var(--line);
  color:var(--muted);font-size:.82rem;line-height:1.7;
}
footer p{margin:0}
.months h3{
  margin:26px 0 10px;font-weight:600;font-size:.86rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--cyan);opacity:.85;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.archive-list{list-style:none;padding:0;margin:0}
.archive-list li{
  display:flex;align-items:baseline;gap:12px;
  padding:9px 4px;border-bottom:1px solid var(--line);font-size:.95rem;
}
.archive-list li:hover{background:rgba(34,211,238,.05)}
.archive-list .cnt{
  margin-left:auto;color:var(--muted);font-size:.8rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%;
}
code{
  padding:1px 6px;border-radius:6px;background:var(--tag);
  font:400 .85em/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.pager{display:flex;justify-content:space-between;font-size:.9rem;margin:28px 0}
@media(max-width:560px){
  .wrap{padding:24px 15px 64px}
  header.site h1{font-size:1.36rem}
  .logo{width:34px;height:34px;border-radius:10px}
  .logo::before{inset:9px}
  .titles .en{font-size:.62rem;letter-spacing:.18em}
  h1{font-size:1.3rem}
  .pick,.item{padding:13px 14px}
  .pick{padding-left:17px}
  .archive-list .cnt{max-width:100%;display:block;margin:2px 0 0}
  .archive-list li{flex-wrap:wrap}
}