:root{
  --bg:#f4f6f8; --panel:#ffffff; --ink:#11181f; --ink2:#48545f; --ink3:#7d8b98;
  --line:#e2e8ee; --brand:#e8442a; --brand-dark:#b8321d; --accent:#0d6b5c;
  --warn:#d98314; --danger:#c9372c; --ok:#2f8f5b; --side:#151a1f; --side2:#1e252c;
  --radius:10px; --shadow:0 1px 2px rgba(16,24,40,.06),0 4px 16px rgba(16,24,40,.05);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:14px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}

/* ---------- 登录 ---------- */
#login{position:fixed;inset:0;z-index:99;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#151a1f 0%,#243038 55%,#151a1f 100%)}
#login.hide{display:none}
.login-card{width:380px;background:#fff;border-radius:14px;padding:38px 34px;box-shadow:0 24px 60px rgba(0,0,0,.45)}
.login-card .logo{font-size:22px;font-weight:800;letter-spacing:.5px;margin-bottom:4px}
.login-card .logo em{color:var(--brand);font-style:normal}
.login-card .sub{color:var(--ink3);font-size:12.5px;margin-bottom:26px;line-height:1.6}
.login-card label{display:block;font-size:12.5px;color:var(--ink2);margin-bottom:7px;font-weight:600}
.login-card input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;
  font-size:16px;letter-spacing:2px;outline:none;transition:.15s}
.login-card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(232,68,42,.12)}
.login-card button{margin-top:18px;width:100%;padding:12px;background:var(--brand);color:#fff;
  border:0;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;transition:.15s}
.login-card button:hover{background:var(--brand-dark)}
.login-card button:disabled{opacity:.6;cursor:not-allowed}
.login-err{color:var(--danger);font-size:12.5px;margin-top:12px;min-height:18px}
.login-foot{margin-top:22px;font-size:11.5px;color:var(--ink3);text-align:center;line-height:1.7}

/* ---------- 布局 ---------- */
#app{display:none;min-height:100%}
#app.on{display:flex}
.sidebar{width:216px;flex:0 0 216px;background:var(--side);color:#c8d2da;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar .brand{padding:20px 18px 16px;border-bottom:1px solid #262e36}
.sidebar .brand b{display:block;color:#fff;font-size:15px;letter-spacing:.4px}
.sidebar .brand span{font-size:11px;color:#7b8894;letter-spacing:1.2px}
.nav{padding:10px 8px;flex:1;overflow:auto}
.nav a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:8px;
  font-size:13.5px;color:#a9b6c2;margin-bottom:2px;cursor:pointer;transition:.15s}
.nav a:hover{background:#202a32;color:#fff}
.nav a.active{background:var(--brand);color:#fff;font-weight:600}
.nav a i{font-style:normal;width:16px;text-align:center;opacity:.9}
.sidebar .side-foot{padding:12px 16px;font-size:11px;color:#5f6c78;border-top:1px solid #262e36;line-height:1.6}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;
  align-items:center;padding:0 22px;gap:14px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:16px;margin:0;font-weight:700}
.topbar .spacer{flex:1}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 10px;
  border-radius:20px;background:#eef2f6;color:var(--ink2);border:1px solid var(--line)}
.badge.ok{background:#e7f5ed;color:#1d6a44;border-color:#c9e7d8}
.badge.warn{background:#fdf3e3;color:#8a5a12;border-color:#f2e0bd}
.badge.err{background:#fbeae8;color:#96271d;border-color:#f3d4cf}
.btn{padding:7px 14px;border:1px solid var(--line);background:#fff;border-radius:7px;
  cursor:pointer;font-size:13px;color:var(--ink2)}
.btn:hover{border-color:#cbd5de}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.content{padding:20px 22px 46px;flex:1}

/* ---------- 组件 ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:14px;margin-bottom:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 16px 14px;box-shadow:var(--shadow)}
.card .k{font-size:12px;color:var(--ink3);margin-bottom:8px;letter-spacing:.2px}
.card .v{font-size:24px;font-weight:750;letter-spacing:-.4px;line-height:1.15}
.card .v small{font-size:13px;font-weight:600;color:var(--ink3);margin-left:2px}
.card .d{font-size:12px;margin-top:7px;color:var(--ink3)}
.up{color:var(--danger)} .down{color:var(--ok)}   /* 中国习惯：涨红跌绿 */

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.panel > h3{margin:0;padding:14px 18px;font-size:14px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px}
.panel > h3 .note{font-weight:400;font-size:11.5px;color:var(--ink3);margin-left:auto}
.panel .body{padding:16px 18px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:1100px){.row2{grid-template-columns:1fr}}

table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid #eef2f6;white-space:nowrap}
th{background:#f7f9fb;font-weight:600;color:var(--ink2);font-size:12px;position:sticky;top:0}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:hover{background:#fafbfc}
.scroll{max-height:520px;overflow:auto}
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600}
.tag.OOS,.tag.DEEP{background:#fbeae8;color:#96271d}
.tag.LOW,.tag.BROKEN{background:#fdf3e3;color:#8a5a12}
.tag.SLOW{background:#eef2f6;color:#5a6773}
.tag.OK{background:#e7f5ed;color:#1d6a44}
.tag.HIGH{background:#e7f5ed;color:#1d6a44}
.tag.MEDIUM{background:#e8f1fb;color:#1c5591}
.tag.LOW2{background:#fdf3e3;color:#8a5a12}
.tag.INSUFFICIENT{background:#fbeae8;color:#96271d}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
select,input.t{padding:7px 10px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:13px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.seg button{padding:7px 14px;border:0;background:#fff;cursor:pointer;font-size:13px;color:var(--ink2)}
.seg button.on{background:var(--brand);color:#fff;font-weight:600}
.empty{padding:34px;text-align:center;color:var(--ink3);font-size:13px}
.muted{color:var(--ink3);font-size:12px}
.chart{width:100%;height:260px;display:block}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--ink2);margin-top:8px}
.legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px}
.ai-wrap{display:grid;grid-template-columns:1fr;gap:14px}
.ai-q{display:flex;gap:10px}
.ai-q input{flex:1;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.ai-ans{background:#fbfcfd;border:1px solid var(--line);border-radius:9px;padding:14px 16px}
.ai-ans .meta{font-size:11.5px;color:var(--ink3);margin-bottom:8px}
.ai-ans pre{background:#0f1519;color:#c9d6e2;padding:10px 12px;border-radius:7px;
  font-size:11.5px;overflow:auto;margin:8px 0 0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chip{padding:6px 11px;border:1px solid var(--line);border-radius:20px;background:#fff;
  font-size:12px;cursor:pointer;color:var(--ink2)}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.view{display:none}.view.on{display:block}
.foot{color:var(--ink3);font-size:11.5px;text-align:center;padding:18px}