:root{--bg:#0d0e10;--card:#16181b;--card2:#1b1e22;--line:#25282d;--tx:#f2f4f5;--mut:#8b9199;--lime:#53e538;--red:#ff5d5d;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}
*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--tx)}body{font-size:14px}
button{font:inherit;cursor:pointer;border:1px solid var(--line);background:#1d2024;color:var(--tx);border-radius:9px;padding:7px 12px}button:hover{border-color:#3a3f46}
button.pri{background:var(--lime);color:#0b1a07;border-color:var(--lime);font-weight:700}button.ghost{background:none;border-color:transparent;color:var(--mut)}button.ghost:hover{color:var(--tx)}button:disabled{opacity:.5;cursor:not-allowed}button.danger{color:var(--red)}
input,textarea,select{width:100%;background:#0f1113;border:1px solid var(--line);border-radius:9px;color:var(--tx);padding:9px 11px;font:inherit}input:focus,textarea:focus,select:focus{outline:2px solid var(--lime);outline-offset:-1px}
input[type=checkbox]{width:auto}textarea{font-family:ui-monospace,Menlo,Consolas,monospace;resize:vertical}
.muted{color:var(--mut)}.err{color:var(--red)}.ok{color:var(--lime)}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.grow{flex:1;min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}.login{max-width:380px;margin:12vh auto 0;text-align:center;padding:0 16px}.login .card>*+*{margin-top:12px}
.logo{font-weight:800;font-size:22px}.logo b{color:var(--lime)}input.code{font-size:24px;letter-spacing:.3em;text-align:center}
.app{display:grid;grid-template-columns:230px 380px 1fr;height:100vh}
.side{border-right:1px solid var(--line);padding:14px 10px;overflow:auto;background:#0b0c0e}.side .logo{padding:0 8px 12px}
.side .nav{display:flex;justify-content:space-between;width:100%;text-align:left;border:0;background:none;padding:7px 10px;border-radius:8px;color:var(--tx)}.side .nav:hover{background:#17191c}.side .nav.on{background:#1b2a17;color:var(--lime)}.side .nav small{color:var(--mut)}.side .nav b{color:var(--lime);font-size:12px}
.side h3{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--mut);margin:16px 10px 6px;font-weight:600}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:7px}
.listc{border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}.lbar{padding:10px;border-bottom:1px solid var(--line);display:flex;gap:8px}.bulk{padding:6px 10px;border-bottom:1px solid var(--line);display:flex;gap:6px;flex-wrap:wrap;background:var(--card2)}
.items{overflow:auto;flex:1}.it{display:flex;gap:9px;padding:10px 12px;border-bottom:1px solid var(--line);cursor:pointer;align-items:flex-start}.it:hover{background:#13151a}.it.sel{background:#16231a}.it.unread .s,.it.unread .f{font-weight:700}
.it .m{min-width:0;flex:1}.it .f{display:flex;justify-content:space-between;gap:8px}.it .f span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.it .s,.it .sn{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.it .sn{color:var(--mut);font-size:13px}
.chip{display:inline-block;font-size:11px;padding:1px 7px;border-radius:99px;margin-right:4px;color:#0b1a07}.star{cursor:pointer;color:#555;background:none;border:0;padding:0 2px}.star.on{color:#ffc933}
.reader{overflow:auto;padding:18px 22px;min-height:0}.reader h2{margin:0 0 6px;font-size:19px}.reader .hd{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}
iframe.body{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;min-height:320px}.att{display:inline-flex;gap:6px;border:1px solid var(--line);border-radius:8px;padding:5px 9px;margin:4px 6px 0 0;color:var(--tx);text-decoration:none}.att:hover{border-color:var(--lime)}
.modal{position:fixed;inset:0;background:#000a;display:flex;align-items:flex-start;justify-content:center;padding:4vh 12px;overflow:auto;z-index:5}.modal .card{width:min(860px,100%)}.modal .card>*+*{margin-top:10px}
.ed{min-height:220px;max-height:50vh;overflow:auto;background:#fff;color:#111;border-radius:9px;padding:12px}.tool button{padding:4px 9px}
.tabs{display:flex;gap:6px}.tabs button.on{border-color:var(--lime);color:var(--lime)}.box{border:1px solid var(--line);border-radius:10px;padding:10px}.box+.box{margin-top:8px}
.toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:#1d2024;border:1px solid var(--line);padding:10px 16px;border-radius:10px;z-index:9}
.back{display:none}
@media(max-width:900px){.app{display:block;height:auto}.side{border:0;border-bottom:1px solid var(--line)}.listc{border:0;max-height:none}.items{max-height:60vh}.back{display:inline-block}.app.reading .side,.app.reading .listc{display:none}.reader{padding:14px}}