:root{
  --paper:#F4F1E8; --card:#FCFAF4; --edge:#DED8C8; --edge2:#C9C2AE;
  --ink:#1E1B16; --ink2:#57534A; --ink3:#8C8779;
  --red:#B23A22; --green:#3F6B3A; --blue:#2A5C8A;
  --fd:'Iowan Old Style','Palatino Linotype','Book Antiqua',Palatino,Georgia,'Songti SC','Noto Serif CJK SC',serif;
  --fb:'Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  background:var(--paper); color:var(--ink); font-family:var(--fb);
  font-size:15px; line-height:1.65; -webkit-font-smoothing:antialiased;
  background-image:linear-gradient(rgba(30,27,22,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(30,27,22,.025) 1px,transparent 1px);
  background-size:24px 24px,24px 24px;
}
::selection{background:rgba(178,58,34,.16)}
.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}

header{padding:clamp(36px,6vw,64px) 0 0}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.kicker{font-family:var(--fb);font-size:11px;font-weight:600;letter-spacing:.16em;
text-transform:uppercase;color:var(--red);margin-bottom:0}
.langbtn{background:none;border:1px solid var(--edge2);color:var(--ink2);font:inherit;
  font-size:11.5px;font-weight:600;letter-spacing:.08em;padding:4px 12px;cursor:pointer;transition:.14s;
  flex:none;line-height:1.5}
.langbtn:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
h1{font-family:var(--fd);font-size:clamp(34px,6vw,58px);line-height:1.08;letter-spacing:-.015em;font-weight:400}
h1 em{font-style:italic;color:var(--ink2)}
.lede{margin-top:16px;max-width:62ch;color:var(--ink2);font-size:16px}
.meta{margin-top:20px;padding-bottom:24px;border-bottom:1px solid var(--edge2);
display:flex;flex-wrap:wrap;gap:6px 20px;font-size:12.5px;color:var(--ink3)}
.meta span::before{content:'·';margin-right:7px;color:var(--edge2)}

.bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:20px 0}
.bar .lb{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
color:var(--ink3);margin-right:4px}
.chip{background:var(--card);border:1px solid var(--edge2);color:var(--ink2);
font:inherit;font-size:13px;padding:5px 13px;cursor:pointer;transition:.14s}
.chip:hover{border-color:var(--ink3);color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:500}
.bar .srch{margin-left:auto;position:relative}
.srch input{background:var(--card);border:1px solid var(--edge2);color:var(--ink);
font:inherit;font-size:13.5px;padding:7px 12px 7px 31px;width:200px;transition:.14s}
.srch input::placeholder{color:var(--ink3)}
.srch input:focus{outline:none;border-color:var(--ink2);width:240px;background:#fff}
.srch svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:13px;height:13px;
stroke:var(--ink3);fill:none;stroke-width:1.7}

.ad{margin:0 0 26px;min-height:0}
.ad:empty{margin:0}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));
gap:0 26px;padding-bottom:20px}

.lv{background:var(--card);border:1px solid var(--edge);padding:20px 22px 22px;
margin-bottom:26px;position:relative;transition:border-color .16s,box-shadow .16s}
.lv:hover{border-color:var(--edge2);box-shadow:0 2px 14px rgba(30,27,22,.055)}
.lv.hide{display:none}
.lv-top{display:flex;align-items:baseline;gap:10px;margin-bottom:9px}
.n{font-family:var(--fd);font-size:13px;color:var(--ink3);flex:none}
.lv-t{font-family:var(--fd);font-size:20px;line-height:1.24;letter-spacing:-.005em;flex:1}
.lv-s{color:var(--ink2);font-size:13.5px;margin-bottom:15px;min-height:2.9em}
.tags{display:flex;gap:6px;align-items:center;margin-bottom:13px;flex-wrap:wrap}
.dir{font-size:11px;color:var(--blue);border:1px solid rgba(42,92,138,.3);
  background:rgba(42,92,138,.05);padding:1px 7px}
.cnt{font-size:11px;color:var(--ink3);margin-left:auto;font-variant-numeric:tabular-nums;letter-spacing:.02em}

.cpy{width:100%;background:none;border:1px solid var(--edge2);color:var(--ink2);
  font:inherit;font-size:13px;padding:8px 0;cursor:pointer;transition:.14s}
.cpy:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.cpy.done{background:var(--green);border-color:var(--green);color:#fff}

.more{border-top:1px solid var(--edge);margin-top:0;padding-top:0;
display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s cubic-bezier(.16,1,.3,1)}
.lv.open .more{grid-template-rows:1fr}
.more>div{overflow:hidden}
.more-in{padding-top:16px;display:grid;gap:14px}
.bl{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink3);padding-bottom:6px;border-bottom:1px solid var(--edge);margin-bottom:8px;
  display:flex;align-items:baseline;gap:8px}
.bl i{font-style:normal;font-weight:400;letter-spacing:0;text-transform:none;
  font-size:11px;color:var(--ink3);opacity:.75;margin-left:auto}
pre{font-family:var(--fb);font-size:13px;line-height:1.7;background:var(--paper);
  border-left:2.5px solid var(--edge2);padding:12px 14px;white-space:pre-wrap;
  word-break:break-word;overflow-wrap:anywhere;color:var(--ink)}
.pass,.fb{font-size:13.5px;color:var(--ink2);display:flex;gap:10px}
.pass .k,.fb .k{flex:none;font-size:10.5px;font-weight:600;letter-spacing:.06em;
padding:2px 7px;margin-top:2px;height:fit-content}
.pass .k{color:var(--green);border:1px solid rgba(63,107,58,.32);background:rgba(63,107,58,.06)}
.fb .k{color:var(--red);border:1px solid rgba(178,58,34,.3);background:rgba(178,58,34,.05)}
.pass b,.fb b{color:var(--ink);font-weight:600}
.fb ul{margin:0;padding-left:0;list-style:none}
.fb li{position:relative;padding-left:13px;margin-top:4px}
.fb li::before{content:'×';position:absolute;left:0;color:var(--red);font-weight:600}
.ans summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--blue);list-style:none;
display:flex;align-items:center;gap:6px}
.ans summary::-webkit-details-marker{display:none}
.ans summary::before{content:'▸';transition:transform .2s;display:inline-block}
.ans[open] summary::before{transform:rotate(90deg)}
.ans[open] summary{margin-bottom:8px}
.ans .bp{font-size:13.5px;color:var(--ink2);background:var(--paper);padding:11px 14px;border-left:2.5px solid var(--edge2)}
.ans .bp b{color:var(--ink);font-weight:600}
.ans .bp code{font-family:ui-monospace,Consolas,monospace;font-size:12px;
  background:rgba(30,27,22,.06);padding:1px 4px}
.src{margin-top:10px;padding-top:9px;border-top:1px dashed var(--edge2);
  font-size:12px;color:var(--ink3);line-height:1.7}
.src a{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(42,92,138,.35)}
.src a:hover{color:var(--red);border-color:var(--red)}

footer{border-top:1px solid var(--edge2);margin-top:44px;padding:22px 0 46px}
footer p{font-size:12.5px;color:var(--ink3);line-height:1.85;max-width:76ch}
footer p.fine{margin-top:10px;font-size:11.5px;color:#a49e90}
footer a{color:var(--ink2);text-decoration:none;border-bottom:1px solid var(--edge2)}
footer a:hover{color:var(--red);border-color:var(--red)}

.legal{max-width:820px;padding-top:36px;padding-bottom:56px}
.legal h1{font-family:var(--fd);font-size:32px;line-height:1.2;margin:24px 0 18px}
.legal h2{font-size:17px;line-height:1.4;margin:26px 0 8px}
.legal p{font-size:14px;color:var(--ink2);line-height:1.85;margin:0 0 12px;max-width:76ch}
.legal a{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(42,92,138,.35)}
.legal a:hover{color:var(--red);border-color:var(--red)}

.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,12px);z-index:99;
background:var(--ink);color:var(--paper);font-size:12.5px;padding:9px 18px;
opacity:0;pointer-events:none;transition:opacity .2s,transform .2s cubic-bezier(.16,1,.3,1)}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media(max-width:600px){
  .grid{grid-template-columns:1fr}
  .bar .srch{margin-left:0;width:100%}
  .srch input,.srch input:focus{width:100%}
}
@media(prefers-reduced-motion:reduce){*{transition-duration:.01ms!important}}