:root{--background: #f7f7f5;--foreground: #1f1f1f;--card: #ffffff;--muted: #6b6b6b;--border: #e6e4df;--accent: #f1f1ef;--green: #4d9960;--amber: #b08030;--red: #c0393b}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-size:13px}button,input,select{font:inherit}.loading{min-height:100vh;display:grid;place-items:center;color:var(--muted)}.login-page{min-height:100vh;display:grid;grid-template-columns:minmax(420px,58%) 1fr}.login-brand{background:#1f1f1f;color:#fff;padding:64px 80px;display:flex;flex-direction:column;gap:16px}.brand-mark,.mini-logo{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;background:#fff;color:#1f1f1f}.login-brand h1,.login-brand p{margin:0}.login-brand p{color:#9b9b9b}.brand-copy{margin-top:90px;max-width:480px}.brand-copy h2{font-size:42px;line-height:1.15;margin:0 0 16px}.brand-copy p{font-size:15px;line-height:1.8}.login-panel{display:grid;place-items:center;padding:36px}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;box-shadow:0 1px 3px #0000000f,0 0 0 1px #00000005}.login-card{width:min(390px,100%);padding:34px}.login-card h2{margin:18px 0 6px;font-size:24px}.login-card p{margin:0 0 26px;color:var(--muted);line-height:1.6}label{display:block;margin:14px 0 6px;color:var(--muted);font-size:12px}input,select{width:100%;height:40px;border:1px solid var(--border);border-radius:8px;padding:0 12px;outline:none;background:#fafafa}button{min-height:36px;border:1px solid #1f1f1f;border-radius:8px;padding:0 14px;background:#1f1f1f;color:#fff;cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.ghost{display:inline-flex;align-items:center;gap:6px;background:#fff;color:#1f1f1f;border-color:var(--border)}.error,.banner.error{color:var(--red);margin:12px 0}.app-shell{min-height:100vh;display:grid;grid-template-columns:220px 1fr}.sidebar{background:#fff;border-right:1px solid var(--border);padding:20px 14px}.logo-row{display:flex;align-items:center;gap:10px;margin-bottom:28px}.logo-row strong,.logo-row span{display:block}.logo-row span{color:var(--muted);font-size:12px}.mini-logo{width:34px;height:34px;background:#1f1f1f;color:#fff}nav{display:grid;gap:4px}nav button{display:flex;align-items:center;gap:9px;height:38px;padding:0 10px;border-radius:8px;color:var(--muted);background:transparent;border:0;justify-content:flex-start}nav button.active{background:var(--accent);color:#1f1f1f;font-weight:600}main{padding:24px;overflow-x:hidden}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.topbar h1{margin:0 0 4px;font-size:26px}.topbar p{margin:0;color:var(--muted)}.top-actions{display:flex;align-items:center;gap:8px}.user{color:var(--muted)}.pill{display:inline-flex;align-items:center;justify-content:center;height:24px;border-radius:999px;padding:0 9px;font-size:12px;border:1px solid transparent}.pill-ok{color:var(--green);background:#4d99601a;border-color:#4d996038}.pill-warn{color:var(--amber);background:#b080301a;border-color:#b0803038}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:12px}.metric-card{display:flex;gap:12px;padding:16px}.metric-icon{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--accent)}.metric-card p,.metric-card span{margin:0;color:var(--muted);font-size:12px}.metric-card strong{display:block;font-size:22px;margin:2px 0}.grid{display:grid;grid-template-columns:1.35fr 1fr;gap:12px;margin-bottom:12px}.section-title{display:flex;justify-content:space-between;gap:12px;padding:16px 16px 10px}.section-title h2{margin:0 0 4px;font-size:16px}.section-title p{margin:0;color:var(--muted)}.route-list,.security-list{display:grid;gap:8px;padding:0 16px 16px}.route-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:0 16px 16px}.route-card{border:1px solid var(--border);border-radius:8px;padding:14px;display:grid;gap:10px;background:#fff}.route-card-head{display:flex;align-items:center;gap:10px}.route-card-head h3,.route-card-head p{margin:0}.route-card-head h3{font-size:15px}.route-card-head p{color:var(--muted);font-size:12px}.route-card-head .pill{margin-left:auto;white-space:nowrap}.route-icon{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;background:var(--accent)}.kv{display:grid;grid-template-columns:80px minmax(0,1fr);gap:8px;align-items:start}.kv span{color:var(--muted)}.route-item,.security-list div{min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--border);border-radius:8px;padding:10px}.route-item span{font-weight:700}.filters{display:flex;align-items:end;gap:12px;padding:14px 16px;margin-bottom:12px}.filters label{width:220px;margin:0}.cidr-list{padding:0 16px 16px;display:flex;gap:8px;flex-wrap:wrap}.cidr-list code{border:1px solid var(--border);border-radius:999px;padding:5px 9px;background:#fafafa}.muted{color:var(--muted);margin:0}.error-inline{color:var(--red);font-size:12px;margin-top:4px}code{color:#444;overflow-wrap:anywhere}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-top:1px solid var(--border);vertical-align:top}th{color:var(--muted);font-weight:600;font-size:12px}.danger{color:var(--red);font-weight:700}@media(max-width:960px){.login-page,.app-shell,.metrics,.grid,.route-cards{grid-template-columns:1fr}.sidebar{display:none}.login-brand{padding:26px}.brand-copy{display:none}.topbar,.top-actions,.filters{flex-wrap:wrap}.filters label{width:100%}}