:root{--bg:#f5f7f8;--panel:#fff;--ink:#17242b;--muted:#6b7d86;--line:#e3e9ec;--brand:#1f4e5f;--brand-soft:#e8f1f3;--accent:#d98324;--danger:#c0392b;--ok:#2e7d5b;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.6}a{color:var(--brand);text-decoration:none}h1,h2,h3,h4{margin:0 0 12px;font-weight:600}h1{font-size:21px}h2{font-size:17px}h3{font-size:15px}.shell{display:flex;min-height:100vh}.sidebar{width:216px;flex-shrink:0;background:var(--brand);color:#dceaee;padding:18px 0;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar .logo{padding:0 20px 16px;border-bottom:1px solid hsla(0,0%,100%,.14)}.sidebar .logo b{color:#fff;font-size:17px;display:block}.sidebar .logo span{font-size:11px;color:#9fc0c9;letter-spacing:.5px}.sidebar nav{padding:12px 10px}.sidebar .group{font-size:11px;color:#7fa4ae;padding:12px 10px 4px;letter-spacing:1px}.sidebar a{display:block;padding:8px 12px;border-radius:8px;color:#dceaee;font-size:13.5px;margin-bottom:2px}.sidebar a:hover{background:hsla(0,0%,100%,.09)}.sidebar a.active{background:#fff;color:var(--brand);font-weight:600}.sidebar a{position:relative}.nav-badge{position:absolute;right:10px;top:7px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--danger);color:#fff;font-size:11px;line-height:18px;text-align:center;font-weight:600}.main{flex:1 1;min-width:0;display:flex;flex-direction:column}.topbar{height:56px;background:var(--panel);border-bottom:1px solid var(--line);justify-content:space-between;padding:0 22px;position:-webkit-sticky;position:sticky;top:0;z-index:20}.topbar,.topbar .who{display:flex;align-items:center}.topbar .who{gap:12px;font-size:13px;color:var(--muted)}.content{padding:22px;flex:1 1}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}.card .card-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.grid{display:grid;grid-gap:14px;gap:14px}.grid.c2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.grid.c3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.grid.c4{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.kpi .label{color:var(--muted);font-size:12.5px}.kpi .value{font-size:25px;font-weight:650;margin:6px 0 2px}.kpi .sub{font-size:12px;color:var(--muted)}.up{color:var(--ok)}.down{color:var(--danger)}.btn,button{border:1px solid var(--brand);background:var(--brand);color:#fff;padding:7px 15px;border-radius:8px;cursor:pointer;font-size:13.5px;font-family:inherit}button:hover{filter:brightness(1.08)}button:disabled{opacity:.55;cursor:not-allowed}button.ghost{background:transparent;color:var(--brand)}button.sm{padding:4px 10px;font-size:12.5px}button.danger{background:var(--danger);border-color:var(--danger)}input,select,textarea{border:1px solid var(--line);border-radius:8px;padding:8px 11px;font-size:13.5px;width:100%;font-family:inherit;background:#fff;color:var(--ink)}input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}label{display:block;font-size:12.5px;color:var(--muted);margin:10px 0 4px}.row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}.row>*{flex:1 1;min-width:130px}.row>button{flex:0 0 auto}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}th{background:#f3f6f7;font-weight:600;color:#3c515b;position:-webkit-sticky;position:sticky;top:0}tbody tr:hover{background:#fafcfc}.table-wrap{overflow:auto;max-height:560px;border:1px solid var(--line);border-radius:8px}.tag{display:inline-block;padding:1px 8px;border-radius:20px;font-size:11.5px;background:var(--brand-soft);color:var(--brand);margin-right:5px}.tag.warn{background:#fdf0dd;color:#9a5b06}.tag.err{background:#fbe4e1;color:var(--danger)}.tag.ok{background:#e2f3ea;color:var(--ok)}.muted{color:var(--muted)}.small{font-size:12.5px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.notice{background:#fdf6ea;border:1px solid #f0dcbc;color:#7a5209;border-radius:8px}.error,.notice{padding:10px 14px;margin-bottom:14px}.error{background:#fbe9e7;border:1px solid #f2c2bb;color:var(--danger);border-radius:8px}.empty{padding:40px;text-align:center;color:var(--muted)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--brand-soft);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-2px}@keyframes spin{to{transform:rotate(1turn)}}.auth-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#1f4e5f,#2f6d78 60%,#3f8b7a);padding:20px}.auth-card{background:#fff;border-radius:14px;padding:34px;width:100%;max-width:420px;box-shadow:0 18px 50px rgba(0,0,0,.22)}.auth-card h1{font-size:23px;margin-bottom:2px}.auth-card .sub{color:var(--muted);font-size:13px;margin-bottom:20px}.auth-tabs{display:flex;gap:6px;margin-bottom:14px}.auth-tabs button{flex:1 1;background:transparent;color:var(--muted);border:1px solid var(--line)}.auth-tabs button.on{background:var(--brand-soft);color:var(--brand);border-color:var(--brand);font-weight:600}.tenant-pick{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px;cursor:pointer}.tenant-pick:hover{border-color:var(--brand);background:var(--brand-soft)}.chat{display:grid;grid-template-columns:250px 1fr;grid-gap:16px;gap:16px;align-items:start}.msg{margin-bottom:16px}.msg.user .bubble{background:var(--brand);color:#fff;display:inline-block;padding:9px 14px;border-radius:12px 12px 2px 12px}.msg.ai .bubble{background:var(--panel);border:1px solid var(--line);border-radius:12px 12px 12px 2px;padding:16px}.answer h2{font-size:15px;margin:14px 0 6px;color:var(--brand)}.answer table{margin:8px 0}.steps{border-left:2px solid var(--brand-soft);padding-left:12px;margin:10px 0}.steps li{font-size:12.5px;color:var(--muted);margin-bottom:3px}.evidence{background:#f8fafb;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:12.5px;margin-top:8px}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}.pill{border:1px solid var(--line);border-radius:20px;padding:4px 12px;font-size:12.5px;cursor:pointer;background:#fff;color:var(--ink)}.pill.on{background:var(--brand);color:#fff;border-color:var(--brand)}pre{background:#f6f8f9;padding:12px;border-radius:8px;overflow:auto;font-size:12px}