:root {
  --primary: #5B5BF7;
  --primary-strong: #4A4AE6;
  --primary-soft: #EEEEFF;
  --bg: #F4F5FB;
  --surface: #FFFFFF;
  --line: #ECEEF6;
  --line-strong: #DFE2EE;
  --ink: #1C2033;
  --ink-2: #5A6076;
  --ink-3: #8B91A7;
  --green: #0E9F6E;
  --green-soft: #E6F7F0;
  --amber: #C77700;
  --amber-soft: #FFF4DE;
  --red: #D93A3F;
  --red-soft: #FDECEC;
  --sidebar-bg: #1D2036;
  --sidebar-bg-2: #171A2B;
  --sidebar-text: #A9AECB;
  --shadow-card: 0 1px 2px rgba(23, 26, 43, 0.04), 0 8px 24px rgba(23, 26, 43, 0.05);
  --shadow-pop: 0 16px 44px rgba(21, 24, 40, 0.16);
  --radius: 14px;
  --font: system-ui, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { min-height: 100vh; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 14px; line-height: 1.55; }
body.no-scroll { overflow: hidden; }
button, input, select, textarea { font-family: inherit; }
button { cursor: pointer; }
h1, h2, p { margin: 0; }
[hidden] { display: none !important; }

.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(420px, 100%); background: var(--surface); border-radius: 18px; padding: 32px 28px; box-shadow: var(--shadow-pop); }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.login-card h1 { font-size: 22px; margin-bottom: 6px; }
.login-card .hint { color: var(--ink-2); margin-bottom: 18px; }

.brand { display: flex; align-items: center; gap: 11px; padding: 20px 20px 18px; color: #fff; text-decoration: none; }
.brand-mark, .avatar { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 11px; background: #5B5BF7; color: #fff; font-weight: 800; }
.brand-text { display: flex; flex-direction: column; }
.brand-text small, .sidebar-user small, .who { color: #7C829F; font-size: 12px; }
.sidebar-user small { color: #7C829F; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar { position: sticky; top: 0; display: flex; flex-direction: column; width: 238px; height: 100vh; background: linear-gradient(180deg, var(--sidebar-bg), var(--sidebar-bg-2)); color: #fff; }
.nav { display: flex; flex-direction: column; gap: 4px; padding: 8px 12px; }
.nav a { position: relative; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; color: var(--sidebar-text); text-decoration: none; }
.nav a.active, .nav a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav a.active { background: linear-gradient(90deg, rgba(91,91,247,0.34), rgba(91,91,247,0.1)); }
.nav-badge { margin-left: auto; min-width: 18px; padding: 0 6px; border-radius: 999px; background: #D93A3F; color: #fff; font-size: 11px; line-height: 18px; text-align: center; }
.sidebar-user { display: flex; gap: 10px; align-items: center; margin-top: auto; padding: 16px 18px 20px; }
.sidebar-user-meta { display: flex; flex-direction: column; }

.main { flex: 1; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 24px 8px; }
.page-heading h1 { font-size: 22px; }
.page-heading p, .card-sub, .source-note { color: var(--ink-2); }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.who { color: var(--ink-2); }
.content { padding: 8px 24px 32px; }

.card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow-card); }
.card-head, .toolbar { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; padding: 16px 18px; }
.card-title { font-size: 16px; }
.filters, .alert-toolbar, .inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: middle; white-space: nowrap; }
th { color: var(--ink-3); font-size: 12px; font-weight: 600; background: #F8F9FD; }
.cell-strong { font-weight: 650; }
.cell-sub { display: block; color: var(--ink-3); font-size: 12px; }
.table-foot { display: flex; justify-content: space-between; padding: 12px 18px; color: var(--ink-3); font-size: 12px; }

.btn, .icon-btn { border: 1px solid transparent; border-radius: 10px; background: var(--primary); color: #fff; padding: 8px 12px; }
.btn-ghost, .icon-btn { background: #fff; color: var(--ink); border-color: var(--line-strong); }
.btn-sm { padding: 5px 9px; font-size: 12px; }
.btn-danger { background: var(--red); }
.btn:disabled { opacity: 0.6; cursor: default; }
.input, .select, textarea.input { height: 36px; border: 1px solid var(--line-strong); border-radius: 10px; padding: 0 10px; background: #fff; color: var(--ink); }
textarea.input { height: auto; padding: 8px 10px; width: 100%; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field label { color: var(--ink-2); font-size: 13px; }
.req { color: var(--red); }
.form-alert { margin-bottom: 12px; padding: 8px 10px; border-radius: 8px; background: var(--red-soft); color: var(--red); }

.tag { display: inline-flex; align-items: center; padding: 1px 8px; border-radius: 999px; font-size: 12px; }
.tag-green { background: var(--green-soft); color: var(--green); }
.tag-amber { background: var(--amber-soft); color: var(--amber); }
.tag-red { background: var(--red-soft); color: var(--red); }
.tag-gray { background: #F1F3F9; color: var(--ink-2); }
.tag-violet { background: #F2EDFE; color: #7C3AED; }

.filter-chip-btn { border: 1px solid var(--line-strong); background: #fff; border-radius: 999px; padding: 6px 10px; color: var(--ink-2); }
.filter-chip-btn.active { border-color: transparent; background: var(--primary-soft); color: var(--primary-strong); font-weight: 650; }
.chip-count { margin-left: 6px; color: inherit; }

.source-note { margin: 0 18px 12px; padding: 8px 10px; border-radius: 8px; background: #F8F9FD; }

.warning-cards { display: grid; grid-template-columns: 1fr; gap: 12px; padding: 0 18px 8px; }
.warning-card { display: flex; gap: 12px; min-height: 112px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #fff; }
.warning-status-bar { width: 4px; flex: none; }
.warning-card.danger .warning-status-bar { background: var(--red); }
.warning-card.warn .warning-status-bar { background: var(--amber); }
.warning-card-main { flex: 1; min-width: 0; padding: 14px 0; }
.warning-card-actions { display: flex; flex-direction: column; justify-content: center; gap: 8px; padding-right: 14px; }
.warning-name { border: 0; background: none; padding: 0; color: var(--ink); font-weight: 700; font-size: 15px; }
.warning-metrics, .warning-message { margin: 4px 0 0; color: var(--ink-2); }
.link-btn { border: 0; background: none; padding: 0; color: var(--primary); }

.stat-cards { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; padding: 0 18px 12px; }
.stat-card { padding: 12px; border: 1px solid var(--line); border-radius: 12px; }
.stat-card span, .stat-card small { color: var(--ink-3); }
.stat-card strong { display: block; margin-top: 4px; font-size: 22px; }
.stat-card.warning strong { color: var(--amber); }
.subtabs { display: flex; gap: 8px; padding: 0 18px 12px; }
.tab { border: 0; background: transparent; padding: 8px 2px; color: var(--ink-2); border-bottom: 2px solid transparent; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }

.empty { padding: 36px 18px; text-align: center; color: var(--ink-2); }
.empty strong { display: block; color: var(--ink); margin-bottom: 4px; }

.modal-root, .drawer-root { position: fixed; inset: 0; background: rgba(21, 24, 40, 0.36); display: flex; align-items: center; justify-content: center; z-index: 30; }
.drawer-root { justify-content: flex-end; }
.modal, .drawer { background: #fff; border-radius: 16px; width: min(640px, calc(100% - 32px)); max-height: calc(100vh - 48px); overflow: auto; }
.drawer { width: min(460px, 100%); height: 100%; border-radius: 0; }
.modal-head, .drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.modal-body, .drawer-body { padding: 16px 18px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 0 18px 16px; }
.kv { display: grid; grid-template-columns: 88px 1fr; gap: 8px 12px; margin-bottom: 16px; }
.kv span { color: var(--ink-3); }

.toast-wrap { position: fixed; top: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 40; }
.toast { background: #1C2033; color: #fff; border-radius: 10px; padding: 10px 12px; }
.toast.error { background: var(--red); }

@media (min-width: 1200px) {
  .warning-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1100px) {
  .stat-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar { width: 76px; }
  .brand-text, .nav-label, .sidebar-user-meta, .nav-badge { display: none; }
  .brand, .sidebar-user { justify-content: center; }
}