:root {
  --blue: #1e6fff;
  --blue-d: #0f4fc4;
  --ink: #0e1726;
  --bg: #f4f6fb;
  --card: #ffffff;
  --line: #e6eaf2;
  --green: #18b56a;
  --amber: #f5a623;
  --red: #e8473f;
  --muted: #8a94a6;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; background: var(--bg); color: var(--ink); }
.hidden { display: none !important; }

/* 登录 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f2a66 0%, #1e6fff 100%); }
.login-card { width: 380px; background: #fff; border-radius: 14px; padding: 38px 34px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.brand { text-align: center; margin-bottom: 26px; }
.logo { display: inline-block; background: var(--blue); color: #fff; font-weight: 700; padding: 6px 14px; border-radius: 8px; letter-spacing: 2px; }
.brand h1 { font-size: 22px; margin-top: 14px; }
.sub { color: var(--muted); font-size: 12px; letter-spacing: 1px; margin-top: 4px; }
#login-form label { display: block; font-size: 13px; color: #4a5468; margin: 14px 0 6px; }
#login-form input { width: 100%; height: 42px; border: 1px solid var(--line); border-radius: 8px; padding: 0 12px; font-size: 14px; outline: none; }
#login-form input:focus { border-color: var(--blue); }
#login-btn { width: 100%; height: 44px; margin-top: 22px; background: var(--blue); color: #fff; border: 0; border-radius: 8px; font-size: 15px; letter-spacing: 4px; cursor: pointer; }
#login-btn:hover { background: var(--blue-d); }
.err { color: var(--red); font-size: 13px; min-height: 18px; margin-top: 10px; }
.hint { color: var(--muted); font-size: 12px; text-align: center; margin-top: 8px; }

/* 顶栏 */
.topbar { height: 58px; background: #fff; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 24px; }
.brand-sm { font-weight: 700; color: var(--blue-d); letter-spacing: 1px; }
.top-right { display: flex; align-items: center; gap: 14px; }
.user-tag { font-size: 13px; color: var(--muted); }
.ghost { border: 1px solid var(--line); background: #fff; color: #4a5468; padding: 7px 14px; border-radius: 7px; cursor: pointer; }
.ghost:hover { border-color: var(--red); color: var(--red); }

/* 顶部 tab 导航 */
.tabs { display: flex; gap: 4px; background: #fff; border-bottom: 1px solid var(--line); padding: 0 24px; }
.tab { border: 0; background: transparent; padding: 14px 18px; font-size: 14px; color: #4a5468; cursor: pointer; border-bottom: 3px solid transparent; }
.tab:hover { color: var(--blue); }
.tab.active { color: var(--blue); border-bottom-color: var(--blue); font-weight: 600; }

.container { max-width: 1180px; margin: 0 auto; padding: 24px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; }
.card .k { font-size: 13px; color: var(--muted); }
.card .v { font-size: 28px; font-weight: 700; margin-top: 6px; }
.card .v small { font-size: 14px; font-weight: 400; color: var(--muted); }
.card .bar { height: 4px; border-radius: 4px; background: var(--blue); margin-top: 12px; opacity: .8; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 22px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.panel-head h2 { font-size: 16px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg-btn { border: 0; background: #fff; padding: 7px 14px; font-size: 13px; cursor: pointer; color: #4a5468; }
.seg-btn.active { background: var(--blue); color: #fff; }
.chart { width: 100%; height: 320px; }
.chart-note { font-size: 12px; color: var(--muted); margin-top: 8px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { background: #f7f9fc; color: #4a5468; font-weight: 600; }
tbody tr:hover { background: #f9fbff; }
.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; }
.b-online { background: #e6f7ef; color: var(--green); }
.b-eco { background: #fff5e3; color: var(--amber); }
.b-offline { background: #fdecea; color: var(--red); }
.muted { color: var(--muted); font-size: 13px; }

/* 导出按钮 */
.export-btn { border: 1px solid var(--blue); background: #fff; color: var(--blue); padding: 6px 14px; border-radius: 7px; font-size: 13px; cursor: pointer; margin-left: 12px; }
.export-btn:hover { background: var(--blue); color: #fff; }

/* 告警级别 */
.lv-critical { background: #fdecea; color: var(--red); }
.lv-warning { background: #fff5e3; color: var(--amber); }
.lv-info { background: #eaf2ff; color: var(--blue); }
.st-pending { background: #fdecea; color: var(--red); }
.st-handled { background: #e6f7ef; color: var(--green); }

/* 项目分布 */
.dist-wrap { display: flex; gap: 24px; flex-wrap: wrap; }
.dist-map { flex: 1 1 420px; min-width: 320px; background: #f7f9fc; border: 1px solid var(--line); border-radius: 10px; }
.dist-legend { flex: 1 1 280px; }
.dist-legend .proj-dot { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.dot { width: 12px; height: 12px; border-radius: 50%; flex: none; }

/* 项目卡片 */
.proj-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 16px; }
.proj-card { border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.proj-card h3 { font-size: 15px; margin-bottom: 4px; }
.proj-card .pc-city { color: var(--muted); font-size: 12px; margin-bottom: 12px; }
.proj-card .pc-row { display: flex; justify-content: space-between; font-size: 13px; padding: 5px 0; border-top: 1px dashed var(--line); }
.proj-card .pc-row span:first-child { color: var(--muted); }
.pc-bar { height: 8px; border-radius: 6px; background: #eef1f6; margin-top: 10px; overflow: hidden; }
.pc-bar > i { display: block; height: 100%; background: var(--blue); }
.pc-status { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.ps-completed { background: #e6f7ef; color: var(--green); }
.ps-running { background: #eaf2ff; color: var(--blue); }
.ps-plan { background: #f0f1f5; color: var(--muted); }