:root{color-scheme:light;--bg:#f4f6f7;--surface:#fff;--ink:#182026;--muted:#66727b;--line:#d9e0e4;--accent:#087f5b;--accent-dark:#066247;--danger:#b42318;--blue:#175cd3}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;background:var(--bg);color:var(--ink)}body{margin:0}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.shell{min-height:100vh}.topbar{height:58px;background:#182026;color:#fff;display:flex;align-items:center;padding:0 24px;border-bottom:3px solid var(--accent)}.brand{font-size:18px;font-weight:700}.topbar nav{margin-left:auto;display:flex;gap:18px;align-items:center}.topbar nav a,.link-button{color:#e8eef1;font-size:14px}.link-button{border:0;background:none;padding:0;cursor:pointer}.container{width:min(1180px,calc(100% - 32px));margin:24px auto 48px}.flash-wrap{margin-bottom:-8px}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.page-head h1{font-size:25px;margin:0 0 5px}.subtitle{color:var(--muted);margin:0}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:8px 13px;border:1px solid #aeb9bf;border-radius:6px;background:#fff;color:var(--ink);font-weight:650;cursor:pointer;text-decoration:none}.btn:hover{background:#f2f5f6;text-decoration:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark)}.btn-danger{border-color:#f1b5b0;color:var(--danger)}.btn-small{min-height:32px;padding:5px 9px;font-size:13px}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:20px}.stat{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:14px 16px}.stat-label{font-size:12px;color:var(--muted);margin-bottom:6px}.stat-value{font-size:20px;font-weight:750}.stat-detail{margin-top:4px;color:var(--muted);font-size:12px}.status{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700}.dot{width:8px;height:8px;border-radius:50%;background:#98a2b3}.status-on .dot{background:#12b76a}.status-off .dot{background:#f04438}.flash{padding:11px 13px;border:1px solid;border-radius:6px;margin-bottom:16px}.flash-ok{background:#ecfdf3;border-color:#abefc6;color:#067647}.flash-error{background:#fef3f2;border-color:#fecdca;color:#b42318}.panel{background:var(--surface);border:1px solid var(--line);border-radius:6px;overflow:hidden}.panel-head{padding:13px 16px;border-bottom:1px solid var(--line);font-weight:750}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid #e8edef;vertical-align:middle}th{font-size:12px;text-transform:uppercase;color:var(--muted);background:#f8fafb}tr:last-child td{border-bottom:0}.rule-name{font-weight:700}.muted{color:var(--muted)}.tag{display:inline-flex;padding:3px 7px;border-radius:4px;background:#eef2f4;font-size:12px;font-weight:700}.tag-tcp{color:#175cd3;background:#eff4ff}.tag-udp{color:#9a6700;background:#fffaeb}.tag-both{color:#6941c6;background:#f4f3ff}.row-actions{display:flex;gap:7px}.empty{padding:44px 18px;text-align:center;color:var(--muted)}.form{max-width:760px}.form-section{background:#fff;border:1px solid var(--line);border-radius:6px;margin-bottom:14px;padding:18px}.form-section h2{font-size:16px;margin:0 0 16px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field-wide{grid-column:1/-1}label{font-size:13px;font-weight:700}input,select,textarea{width:100%;border:1px solid #aeb9bf;border-radius:5px;background:#fff;color:var(--ink);padding:9px 10px;font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid #a6f4c5;border-color:var(--accent)}textarea{min-height:230px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px}.help{color:var(--muted);font-size:12px}.check{display:flex;align-items:center;gap:8px}.check input{width:16px;height:16px}.form-actions{display:flex;gap:8px;margin-top:16px}.log{background:#101828;color:#d0d5dd;padding:15px;min-height:340px;max-height:65vh;overflow:auto;font:12px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;white-space:pre-wrap}.login-shell{min-height:calc(100vh - 58px);display:grid;place-items:center;padding:20px}.login{width:min(390px,100%);background:#fff;border:1px solid var(--line);border-top:4px solid var(--accent);border-radius:6px;padding:26px}.login h1{font-size:22px;margin:0 0 6px}.login p{color:var(--muted);margin:0 0 22px}.login .field{margin-bottom:14px}.danger-zone{border-color:#fecdca}.danger-zone h2{color:var(--danger)}footer{color:var(--muted);font-size:12px;text-align:center;margin-top:24px}@media(max-width:760px){.topbar{padding:0 16px}.topbar nav a{display:none}.container{width:min(100% - 20px,1180px);margin-top:16px}.page-head{display:block}.actions{margin-top:12px}.stats{grid-template-columns:1fr 1fr}.grid{grid-template-columns:1fr}.field-wide{grid-column:auto}.stat-value{font-size:17px}th,td{padding:10px}.row-actions{min-width:245px}}@media(max-width:430px){.stats{grid-template-columns:1fr}.topbar nav{gap:10px}.brand{font-size:16px}}