:root{
  --bg:#dee2e6;
  --surface:#f8f9fa;
  --surface-2:#ffffff;
  --line:#dee2e6;
  --line-soft:#e9ecef;
  --text:#212529;
  --text-strong:#161b20;
  --muted:#55606a;
  --nav-bg:#2b3138;
  --nav-text:#e9ecef;
  --nav-muted:#aeb6bf;
  --accent:#fd8000;
  --accent-ink:#2a1600;
  --accent-deep:#8f4200;
  --chip:#e9ecef;
  --chip-ink:#495057;
  --cta-face:#17232e;
  --cta-ink:#ffffff;
  --cta-streak:#ffd9a8;
  --shadow-card:2px 2px 3px rgba(173,181,189,.25);
  --radius:4px;
  --wrap:1140px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{font-family:"Helvetica Neue",Helvetica,"Microsoft Yahei","Hiragino Sans GB","WenQuanYi Micro Hei",STHeiti,sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);margin:0}
body{padding-bottom:calc(150px + env(safe-area-inset-bottom))}
h1{font-size:24px;line-height:1.3;margin:0}
h2{font-size:20px;line-height:1.35;margin:1.6rem 0 .6rem}
h3{font-size:17px;line-height:1.4;margin:1.2rem 0 .4rem}
p{margin:0 0 .9rem;overflow-wrap:anywhere}
a{color:var(--accent-deep)}
img{max-width:100%;height:auto}
abbr{text-decoration:none;border-bottom:1px dotted var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;background:var(--surface-2);color:var(--text);padding:8px 12px;z-index:60}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px}
.site-header{background:var(--nav-bg);color:var(--nav-text)}
.header-inner{max-width:var(--wrap);margin:0 auto;padding:6px 15px;display:flex;align-items:center;gap:10px 16px;flex-wrap:wrap;min-height:56px}
.brand{display:flex;align-items:center;gap:8px;color:var(--nav-text);text-decoration:none;font-size:18px;font-weight:700;flex:0 0 auto}
.brand img{width:28px;height:28px;display:block}
.brand:hover{color:var(--surface-2)}
.site-nav{display:flex;flex-wrap:wrap;gap:2px;min-width:0}
.site-nav a{display:block;padding:6px 11px;border-radius:var(--radius);color:var(--nav-muted);text-decoration:none;font-size:15px}
.site-nav a:hover{background:var(--accent);color:var(--accent-ink)}
.site-nav a.is-active{background:var(--accent);color:var(--accent-ink);font-weight:700}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 15px}
.row{display:flex;flex-wrap:wrap;gap:16px;margin:16px 0 0;align-items:flex-start}
.col-main{flex:1 1 620px;min-width:0}
.col-aside{flex:0 1 300px;min-width:0;display:flex;flex-direction:column;gap:16px}
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-card);overflow:hidden}
.card-header{padding:10px 14px;border-bottom:1px solid var(--line);background:linear-gradient(0deg,var(--line-soft),var(--surface));color:var(--chip-ink);font-size:15px}
.card-body{padding:14px}
.card-foot{padding:10px 14px;border-top:1px solid var(--line-soft)}
.crumb{padding:10px 14px;font-size:15px;color:var(--muted)}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--accent-deep);text-decoration:underline}
.aside-brand{font-size:19px;margin:0 0 .3rem}
.aside-line{color:var(--muted);font-size:15px;margin:0}
.card-strip{padding:6px 8px}
.nav-top{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;gap:2px}
.nav-top a{display:block;padding:6px 12px;border-radius:var(--radius);color:var(--text);text-decoration:none;font-size:15px}
.nav-top a:hover{background:var(--accent);color:var(--accent-ink)}
.nav-top .is-active a{background:var(--accent);color:var(--accent-ink);font-weight:700}
.tabs{display:flex;flex-wrap:wrap;gap:6px}
.tab{padding:4px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-2);color:var(--chip-ink);font-size:15px;font-family:inherit;cursor:pointer}
.tab:hover{border-color:var(--accent-deep);color:var(--accent-deep)}
.tab.is-active{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}
.threadlist{list-style:none;margin:0;padding:0}
.thread{display:flex;gap:12px;padding:14px;border-bottom:1px solid var(--line-soft)}
.thread:last-child{border-bottom:0}
.thread:hover{background:var(--surface-2)}
.t-avatar{flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700}
.thread-body{flex:1 1 auto;min-width:0}
.thread-title{margin:0 0 4px;font-size:17px;line-height:1.45}
.thread-title a{color:var(--text-strong);text-decoration:none}
.thread-title a:hover{color:var(--accent-deep);text-decoration:underline}
.thread-note{margin:0 0 6px;color:var(--muted);font-size:15px}
.thread-meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13px;color:var(--muted)}
.chip{display:inline-block;padding:1px 9px;border-radius:999px;background:var(--chip);color:var(--chip-ink);font-size:13px;white-space:nowrap}
.chip-cat{background:var(--nav-bg);color:var(--nav-text)}
.hint{color:var(--muted);font-size:14px;margin:.4rem 0 0}
.stat{width:100%;border-collapse:collapse;font-size:14px;text-align:center}
.stat td{padding:6px 2px}
.stat span{display:block;color:var(--muted);font-size:13px}
.stat b{font-size:16px;color:var(--text-strong)}
.field{display:flex;gap:8px}
.field input{flex:1 1 auto;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface-2);color:var(--text);font-size:16px;font-family:inherit}
.btn{padding:8px 16px;border:1px solid transparent;border-radius:var(--radius);background:var(--accent);color:var(--accent-ink);font-size:16px;font-family:inherit;cursor:pointer}
.btn:hover{background:var(--accent-deep);color:var(--surface-2)}
.q-results{margin-top:.6rem}
.q-results ul{list-style:none;margin:0;padding:0}
.q-results li{padding:6px 0;border-bottom:1px solid var(--line-soft)}
.link-list{list-style:none;margin:0;padding:0}
.link-list li{margin-bottom:.5rem}
.link-list a{text-decoration:none}
.link-list a:hover{text-decoration:underline}
.prose{font-size:16px}
.prose .lede{font-size:17px;color:var(--text-strong)}
.prose ul{margin:0 0 1rem;padding-left:1.2rem}
.prose li{margin-bottom:.45rem}
.prose strong{color:var(--text-strong)}
.table-wrap{overflow-x:auto;margin:0 0 1rem}
table.data{width:100%;border-collapse:collapse;font-size:16px;min-width:520px}
table.data caption{text-align:left;color:var(--muted);font-size:14px;padding:0 0 6px}
table.data th,table.data td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
table.data th{background:var(--line-soft);color:var(--chip-ink);font-weight:700}
.site-footer{background:var(--nav-bg);color:var(--nav-text);margin-top:24px}
.footer-inner{max-width:var(--wrap);margin:0 auto;padding:22px 15px;display:flex;flex-wrap:wrap;gap:18px 40px}
.footer-brand{flex:1 1 260px;min-width:0}
.footer-brand-link{color:var(--nav-text);text-decoration:none;font-size:17px;font-weight:700;display:inline-block;margin-bottom:.4rem}
.footer-brand-link:hover{color:var(--surface-2);text-decoration:underline}
.footer-brand p{color:var(--nav-muted);font-size:14px;margin:0}
.footer-nav{flex:0 1 auto}
.footer-nav h2{font-size:15px;margin:0 0 .5rem;color:var(--nav-muted)}
.footer-nav ul{list-style:none;margin:0;padding:0;font-size:14px}
.footer-nav li{margin-bottom:.35rem}
.footer-nav a{color:var(--nav-text);text-decoration:none}
.footer-nav a:hover{color:var(--surface-2);text-decoration:underline}
.site-cta{position:fixed;left:50%;bottom:64px;z-index:50;transform:translateX(-50%);width:min(520px,calc(100% - 32px));min-height:56px;display:flex;align-items:center;justify-content:center;padding:16px 24px;border-radius:6px;background:var(--cta-face);color:var(--cta-ink);font-size:17px;font-weight:600;text-decoration:none;overflow:hidden;box-shadow:0 10px 26px rgba(23,35,46,.32)}
.site-cta__label{position:relative;z-index:2}
.site-cta::before{content:"";position:absolute;inset:-18% -8%;background:radial-gradient(120% 150% at 24% 45%,rgba(253,128,0,.30) 0%,rgba(253,128,0,0) 68%);opacity:0;transform:scale(.97);animation:cta-damp 3s cubic-bezier(.2,.7,.3,1) infinite}
.site-cta::after{content:"";position:absolute;left:0;right:0;top:-44px;bottom:0;background-image:repeating-linear-gradient(180deg,rgba(255,217,168,.22) 0 1px,transparent 1px 14px);opacity:0;animation:cta-rain 3.4s cubic-bezier(.2,.7,.3,1) infinite}
@keyframes cta-damp{
  0%,46%{opacity:0;transform:scale(.97)}
  62%{opacity:.9;transform:scale(1.02)}
  88%,100%{opacity:0;transform:scale(1.06)}
}
@keyframes cta-rain{
  0%,40%{opacity:0;transform:translateY(0)}
  55%{opacity:.85}
  78%{opacity:.85;transform:translateY(26px)}
  96%,100%{opacity:0;transform:translateY(34px)}
}
.site-cta:hover,.site-cta:focus-visible{color:var(--cta-ink)}
.site-cta:hover{box-shadow:0 6px 18px rgba(23,35,46,.4)}
@media (max-width:992px){
  .col-main,.col-aside{flex:1 1 100%}
}
@media (max-width:768px){
  .site-nav{flex-wrap:nowrap;overflow-x:auto;width:100%;padding-bottom:2px}
  .site-nav a{white-space:nowrap;font-size:14px}
  .header-inner{min-height:52px}
  table.data{min-width:480px}
}
@media (max-width:640px){
  .site-cta{left:12px;right:12px;transform:none;width:auto;bottom:calc(48px + env(safe-area-inset-bottom));font-size:16px}
  .thread{padding:12px 10px}
}
@media (prefers-reduced-motion: reduce){
  .site-cta::before{animation:none;opacity:.5;transform:scale(1)}
  .site-cta::after{animation:none;opacity:.3;transform:translateY(12px)}
}