:root{--bg:#f5f7fb;--card:#ffffff;--text:#172033;--muted:#64748b;--border:#e3e8f0;--primary:#2f6fed;--primary-dark:#2257c7;--danger:#d93a54;--ok:#1fa37e;--radius:12px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:24px;margin:0 0 4px}h2{font-size:18px;margin:0 0 12px}.top{background:var(--card);border-bottom:1px solid var(--border)}.top-in{max-width:1040px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:16px}.brand{font-weight:700;font-size:17px;color:var(--text)}.brand small{display:block;font-weight:500;font-size:12px;color:var(--muted)}.spacer{flex:1 1}.who{font-size:13px;color:var(--muted);text-align:right}.wrap{padding:24px 20px 48px}.foot,.wrap{max-width:1040px;margin:0 auto}.foot{padding:0 20px 32px;color:var(--muted);font-size:13px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.muted{color:var(--muted)}.small{font-size:13px}.btn{display:inline-flex;align-items:center;gap:6px;border:0;border-radius:8px;padding:10px 16px;font:inherit;font-weight:600;background:var(--primary);color:#fff;cursor:pointer}.btn:hover{background:var(--primary-dark);text-decoration:none}.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--border)}.btn.ghost:hover{background:#eef3fe}.btn:disabled{opacity:.6;cursor:default}.linkbtn{background:none;border:0;color:var(--muted);font:inherit;cursor:pointer;padding:0}.linkbtn:hover{color:var(--text);text-decoration:underline}label{display:block;font-weight:600;font-size:14px;margin:14px 0 6px}input,select,textarea{width:100%;font:inherit;color:inherit;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid #bcd0fb;border-color:var(--primary)}textarea{min-height:120px;resize:vertical}.hint{font-size:13px;color:var(--muted);margin-top:4px}.error{background:#fdecef;color:#a3253b}.error,.success{border-radius:8px;padding:10px 12px;margin:12px 0}.success{background:#e6f6f1;color:#146c54}.auth{max-width:420px;margin:8vh auto}.auth .card{padding:28px}.tabs{display:flex;gap:4px;margin:16px 0}.tab{padding:8px 14px;border-radius:8px;color:var(--muted);font-weight:600}.tab.on{background:var(--card);color:var(--text);border:1px solid var(--border)}.tab:hover{text-decoration:none;color:var(--text)}.list{display:flex;flex-direction:column;gap:8px}.item{display:grid;grid-template-columns:70px 1fr auto;grid-gap:14px;gap:14px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;color:var(--text)}.item:hover{border-color:#b9c8e6;text-decoration:none;box-shadow:0 1px 4px rgba(23,32,51,.06)}.num{color:var(--muted);font-weight:700}.subj{font-weight:600}.chip{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:700;color:#fff;white-space:nowrap}.empty{text-align:center;padding:40px;color:var(--muted)}.grid2{display:grid;grid-template-columns:minmax(0,1fr) 280px;grid-gap:20px;gap:20px;align-items:start}@media (max-width:820px){.grid2{grid-template-columns:1fr}.item{grid-template-columns:54px 1fr}.item .right{grid-column:2}}.thread{flex-direction:column}.msg,.thread{display:flex;gap:12px}.ava{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;flex:none}.bubble{flex:1 1;min-width:0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.bubble.mine{background:#eef3fe;border-color:#d6e2fc}.meta{font-size:13px;color:var(--muted);margin-bottom:4px}.meta b{color:var(--text)}.body{white-space:pre-wrap;word-break:break-word}.kv{display:grid;grid-template-columns:auto 1fr;grid-gap:6px 12px;gap:6px 12px;font-size:14px}.kv dt{color:var(--muted)}.kv dd,.steps{margin:0}.steps{list-style:none;padding:0;font-size:14px}.steps li{padding:4px 0 4px 18px;position:relative;color:var(--muted)}.steps li:before{content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:50%;background:#cbd5e1}.steps li.done{color:var(--text)}.steps li.done:before{background:var(--ok)}