:root{--bg:#f5f6f8;--panel:#fff;--border:#e4e7ec;--text:#1f2733;--muted:#6b7280;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--ok:#16a34a;--warn:#d97706;--chip:#eef2ff;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Microsoft YaHei,Roboto,Helvetica,Arial,sans-serif;font-size:14px;line-height:1.55}a{color:var(--primary);text-decoration:none}.nav{display:flex;align-items:center;gap:18px;padding:0 20px;height:54px;background:var(--panel);border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;z-index:10}.nav .brand{font-weight:700;font-size:15px;margin-right:8px}.nav a{color:var(--muted);padding:6px 4px;font-weight:500}.nav a.active{color:var(--text);border-bottom:2px solid var(--primary)}.nav .spacer{flex:1 1}.nav .user{color:var(--muted);font-size:13px}.container{max-width:1200px;margin:0 auto;padding:20px}.workbench{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;align-items:start}@media (max-width:900px){.workbench{grid-template-columns:1fr}}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.panel h2{margin:0 0 12px;font-size:15px}.panel h3{margin:16px 0 8px;text-transform:uppercase;letter-spacing:.04em}.panel h3,label{font-size:13px;color:var(--muted)}label{display:block;margin:10px 0 4px}input[type=email],input[type=password],input[type=text],select,textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)}textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)}.row{display:flex;gap:10px;flex-wrap:wrap}.row>*{flex:1 1;min-width:120px}.chips{display:flex;gap:8px;flex-wrap:wrap}.btn,.chips{align-items:center}.btn{display:inline-flex;justify-content:center;gap:6px;padding:9px 16px;border:1px solid var(--primary);background:var(--primary);color:#fff;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--text);border-color:var(--border)}.btn.secondary:hover{background:#f3f4f6}.btn.danger{background:#fff;color:var(--danger);border-color:#f0c4c4}.btn.small{padding:5px 10px;font-size:12px}.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.chip{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--chip);color:var(--primary-dark)}.chip.neg{background:#fdeaea;color:var(--danger)}.chip.pos{background:#e7f6ec;color:var(--ok)}.chip.warn{background:#fdf1e0;color:var(--warn)}.chip.gray{background:#eef0f3;color:var(--muted)}.kv{display:flex;gap:8px;margin:6px 0;font-size:13px}.kv .k{color:var(--muted);min-width:76px}.analysis-box{padding:12px;margin-top:8px}.analysis-box,.reply-output{background:#f8fafc;border:1px solid var(--border);border-radius:8px}.reply-output{white-space:pre-wrap;padding:14px;min-height:120px;font-size:14px}.muted{color:var(--muted)}.small{font-size:12px}.spacer-y{height:12px}.hint{font-size:12px;color:var(--muted);margin-top:4px}.spinner{width:15px;height:15px;border:2px solid #fff;border-top-color:transparent;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.list-item{border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:10px;background:#fff}.list-item .title{font-weight:600}.list-item .meta{color:var(--muted);font-size:12px;margin-top:2px}.tag-input{display:flex;gap:8px}.tag-input input{flex:1 1}.banner{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px}.auth-wrap{max-width:380px;margin:60px auto}.error-text{color:var(--danger)}.error-text,.ok-text{font-size:13px;margin-top:8px}.ok-text{color:var(--ok)}.versions{display:flex;gap:8px;margin-bottom:10px}.version-tab{padding:5px 12px;border:1px solid var(--border);border-radius:999px;cursor:pointer;font-size:12px;background:#fff}.version-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}