:root {
  --color-bg: #F6F8FA; --color-surface: #FFFFFF; --color-surface-sunken: #EEF1F5;
  --color-fg: #161B22; --color-fg-muted: #57606B; --color-fg-subtle: #8B94A3;
  --color-border: #E2E6EC; --color-border-strong: #CBD2DB;
  --color-primary: #1D4ED8; --color-primary-hover: #1E40AF; --color-primary-active: #1B3A9C; --color-on-primary: #FFFFFF;
  --color-success: #15803D; --color-warning: #B45309; --color-danger: #C0271C; --color-info: #1D6FB8;
  --color-seal: #C2410C;
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px;
  --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-5: 20px; --space-6: 24px; --space-8: 40px;
  --shadow-raised: 0 1px 2px rgba(16,24,40,.04), 0 4px 12px rgba(16,24,40,.06);
  --font-body: "Geist", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(.2,0,0,1);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-body); background: var(--color-bg); color: var(--color-fg); font-size: 14px; line-height: 1.5; }
a { color: var(--color-primary); }
button { font-family: inherit; }
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--color-border-strong); background: var(--color-surface); color: var(--color-fg); padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); cursor: pointer; transition: background .16s var(--ease); }
.btn:hover { background: var(--color-surface-sunken); }
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-danger { color: var(--color-danger); border-color: var(--color-danger); }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-5); box-shadow: var(--shadow-raised); }
.input { width: 100%; padding: var(--space-2) var(--space-3); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); font-size: 14px; font-family: inherit; }
.input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 25%, transparent); }
label { display: block; font-size: 12px; color: var(--color-fg-muted); margin-bottom: 4px; }
.row { display: flex; gap: var(--space-3); align-items: center; }
.between { justify-content: space-between; }
.wrap { max-width: 1100px; margin: 0 auto; padding: var(--space-6); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: var(--color-d: 10px) var(--space-3); border-bottom: 1px solid var(--color-border); font-size: 13px; }
th { color: var(--color-fg-muted); font-weight: 600; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: var(--color-surface-sunken); color: var(--color-fg-muted); }
.badge.ok { background: color-mix(in srgb, var(--color-success) 14%, #fff); color: var(--color-success); }
.badge.warn { background: color-mix(in srgb, var(--color-warning) 14%, #fff); color: var(--color-warning); }
.badge.bad { background: color-mix(in srgb, var(--color-danger) 14%, #fff); color: var(--color-danger); }
.nav { display: flex; gap: var(--space-2); border-bottom: 1px solid var(--color-border); padding: var(--space-3) var(--space-6); background: var(--color-surface); position: sticky; top: 0; z-index: 5; flex-wrap: wrap; align-items: center; }
.nav .brand { font-weight: 600; color: var(--color-primary); margin-right: var(--space-4); display: inline-flex; align-items: center; gap: 6px; }
.nav a.tab { color: var(--color-fg-muted); text-decoration: none; padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); display: inline-flex; align-items: center; gap: 6px; }
.nav a.tab.active { color: var(--color-primary); background: var(--color-surface-sunken); }
.section { display: none; } .section.active { display: block; }
.muted { color: var(--color-fg-muted); }
.mono { font-family: var(--font-mono); font-size: 12px; }
.seal-img { width: 96px; height: 96px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.kpi { display: flex; gap: var(--space-4); }
.kpi .card { flex: 1; }
.kpi .num { font-family: var(--font-mono); font-size: 28px; font-weight: 600; }
.hidden { display: none !important; }
.toast { position: fixed; bottom: 20px; right: 20px; background: var(--color-fg); color: #fff; padding: 10px 16px; border-radius: 8px; opacity: 0; transition: opacity .2s; z-index: 50; }
.toast.show { opacity: 1; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }

/* 分段筛选控件 */
.seg { display: inline-flex; gap: 4px; background: var(--color-surface-sunken); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 4px; margin-bottom: var(--space-4); flex-wrap: wrap; }
.seg-btn { border: none; background: transparent; color: var(--color-fg-muted); padding: var(--space-2) var(--space-3); border-radius: 6px; cursor: pointer; font-size: 13px; transition: background .16s var(--ease); }
.seg-btn:hover { color: var(--color-fg); }
.seg-btn.active { background: var(--color-surface); color: var(--color-primary); box-shadow: var(--shadow-raised); font-weight: 600; }

/* 模态 */
.modal { position: fixed; inset: 0; background: rgba(16,24,40,.45); display: none; align-items: center; justify-content: center; z-index: 60; padding: var(--space-4); }
.modal.show { display: flex; }
.modal-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); width: 100%; max-width: 460px; box-shadow: 0 12px 40px rgba(16,24,40,.2); }
.modal-card h3 { margin: 0 0 var(--space-4); display: flex; align-items: center; gap: 8px; }