:root{
  --bg:#f5f6f8; --card:#ffffff; --ink:#1f2329; --muted:#6b7280;
  --line:#e5e7eb; --brand:#2563eb; --brand-soft:#eff6ff;
  --ok:#15803d; --warn:#b45309; --err:#b91c1c; --radius:12px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  padding-bottom:48px;
}
.top{
  position:sticky; top:0; z-index:10; display:flex; align-items:center; justify-content:space-between;
  gap:12px; padding:12px 16px; background:rgba(255,255,255,.94); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--brand)}
.who{display:flex;align-items:center;gap:8px}
select,input,textarea{
  width:100%; padding:9px 11px; border:1px solid var(--line); border-radius:8px;
  background:#fff; color:var(--ink); font:inherit; outline:none;
}
select:focus,input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
textarea{resize:vertical}
label{display:block;margin:10px 0;font-size:13px;color:var(--muted)}
label input,label textarea,label select{display:block;margin-top:5px;color:var(--ink)}
button{font:inherit;cursor:pointer;border-radius:8px;padding:9px 16px;border:1px solid var(--line);background:#fff;color:var(--ink);transition:.15s}
button:hover:not(:disabled){border-color:var(--brand);color:var(--brand)}
button:disabled{opacity:.45;cursor:not-allowed}
button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
button.primary:hover:not(:disabled){background:#1d4ed8;color:#fff}
button.ghost{background:transparent}
button.filebtn{display:inline-block;background:var(--brand-soft);border-color:#bfdbfe;color:var(--brand)}
.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.row label{margin:0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:14px auto;max-width:820px}
.card > :first-child{margin-top:0}
h2{font-size:18px;margin:0 0 6px}
h3{font-size:15px;margin:0 0 8px}
.muted,.hint{color:var(--muted);font-size:13px;margin:6px 0}
.hint{border-left:3px solid var(--line);padding-left:10px}
.msg{font-size:13px;color:var(--muted)}
.msg.ok{color:var(--ok)} .msg.err{color:var(--err)} .msg.warn{color:var(--warn)}
.setup{max-width:560px;margin-top:28px}
.tabs{display:flex;gap:6px;max-width:820px;margin:16px auto 0;padding:0 2px}
.tab{flex:1;border-radius:10px 10px 0 0;border-bottom:none;background:transparent;color:var(--muted)}
.tab.active{background:var(--card);color:var(--brand);font-weight:600;border-color:var(--line)}
.pane{max-width:820px;margin:0 auto}
.photobox{margin-top:12px;border:1px dashed var(--line);border-radius:8px;padding:8px;text-align:center;background:#fafafa}
.photobox img{max-width:100%;max-height:340px;border-radius:6px}
.list{max-width:820px;margin:0 auto}
.item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin:10px 0;cursor:pointer}
.item:hover{border-color:var(--brand)}
.item .head{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.item .q{font-weight:600;margin:4px 0;white-space:pre-wrap;word-break:break-word}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.chip{font-size:12px;padding:2px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand);border:1px solid #bfdbfe}
.chip.grey{background:#f3f4f6;color:var(--muted);border-color:var(--line)}
.meta{font-size:12px;color:var(--muted)}
.detail img{max-width:100%;max-height:420px;border-radius:8px;margin:8px 0;border:1px solid var(--line)}
.detail h3{margin-top:14px}
.detail p{white-space:pre-wrap;word-break:break-word;margin:4px 0}
.acts{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
@media (max-width:640px){
  .grid2{grid-template-columns:1fr}
  .card,.tabs,.pane,.list{margin-left:10px;margin-right:10px}
  .top{padding:10px 12px}
}