:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --line: #e5e7eb;
  --line-soft: #eef0f3;
  --text: #0f172a;
  --sub: #475569;
  --muted: #94a3b8;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --ok: #16a34a;
  --ok-soft: #ecfdf3;
  --warn: #d97706;
  --warn-soft: #fff7e6;
  --bad: #dc2626;
  --bad-soft: #fef1f1;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .04);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); line-height: 1.55; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12.5px; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.sub { color: var(--sub); }
.small { font-size: 12.5px; }
h1 { font-size: 22px; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0; }
h3 { font-size: 13px; margin: 0 0 8px; color: var(--sub); font-weight: 600; }

/* ---------- 顶栏 ---------- */
.topbar { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.topbar .in { max-width: 1240px; margin: 0 auto; padding: 0 28px; display: flex; align-items: center; height: 56px; gap: 28px; }
.brand { font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 8px; color: var(--text); }
.brand .logo { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, #2563eb, #7c3aed); display: inline-block; }
.nav { display: flex; gap: 4px; flex: 1; }
.nav a { color: var(--sub); padding: 7px 12px; border-radius: 8px; font-weight: 500; }
.nav a:hover { background: var(--bg); text-decoration: none; color: var(--text); }
.nav a.on { color: var(--accent); background: var(--accent-soft); }
.topbar form { margin: 0; }

.page { max-width: 1240px; margin: 0 auto; padding: 28px; }
.head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.head .desc { color: var(--sub); margin-top: 4px; }
.crumb { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.crumb a { color: var(--muted); }

/* ---------- 卡片 ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card + .card, .section + .section { margin-top: 20px; }
.grid > .card { margin-top: 0; }
.card .card-h { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--line-soft); }
.card .card-b { padding: 16px 18px; }
.grid { display: grid; gap: 16px; }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: 1fr 1fr; }
.g-side { grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); align-items: start; }
@media (max-width: 1000px) { .g4, .g3 { grid-template-columns: 1fr 1fr; } .g-side, .g2 { grid-template-columns: 1fr; } }

.tile { padding: 16px 18px; }
.tile .label { color: var(--sub); font-size: 13px; }
.tile .value { font-size: 26px; font-weight: 700; margin-top: 4px; letter-spacing: -.02em; }
.tile .hint { font-size: 12.5px; margin-top: 2px; color: var(--muted); }
.tile.warn .value { color: var(--warn); }
.tile.bad .value { color: var(--bad); }

/* ---------- 表格 ---------- */
table.t { width: 100%; border-collapse: collapse; }
.t th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12.5px; padding: 10px 18px; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
.t td { padding: 12px 18px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
.t tr:last-child td { border-bottom: 0; }
.t tbody tr:hover { background: #fafbfc; }
.t .right { text-align: right; }
.t .name { font-weight: 600; color: var(--text); }
.t .name:hover { color: var(--accent); }
.t tr.off td { opacity: .55; }
.empty { padding: 36px; text-align: center; color: var(--muted); }

/* ---------- 标签、状态点 ---------- */
.tag { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; padding: 1px 8px; border-radius: 99px; background: var(--bg); color: var(--sub); border: 1px solid var(--line); white-space: nowrap; }
.tag.ok { background: var(--ok-soft); color: var(--ok); border-color: #c6efd5; }
.tag.warn { background: var(--warn-soft); color: var(--warn); border-color: #fde3b0; }
.tag.bad { background: var(--bad-soft); color: var(--bad); border-color: #fbcaca; }
.tag.accent { background: var(--accent-soft); color: var(--accent); border-color: #d4e0fd; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.dot.warn { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-soft); }
.dot.bad { background: var(--bad); box-shadow: 0 0 0 3px var(--bad-soft); }
.status { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.ok-t { color: var(--ok); } .warn-t { color: var(--warn); } .bad-t { color: var(--bad); } .muted-t { color: var(--muted); }

/* ---------- 进度条 ---------- */
.bar { position: relative; height: 6px; background: #edf0f4; border-radius: 99px; min-width: 120px; }
.bar > i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 99px; background: var(--ok); }
.bar > i.warn { background: var(--warn); } .bar > i.bad { background: var(--bad); } .bar > i.muted { background: var(--muted); }
.bar > b { position: absolute; top: -3px; bottom: -3px; width: 2px; border-radius: 2px; background: #94a3b8; }
.bar > b.bad { background: var(--bad); } .bar > b.warn { background: var(--warn); }
.usage { display: flex; flex-direction: column; gap: 5px; min-width: 180px; }
.usage .nums { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--sub); gap: 12px; }
.usage .nums strong { color: var(--text); font-weight: 600; }

/* ---------- 按钮、表单 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 34px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--text); font: inherit; font-weight: 500; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #f8fafc; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #1d4ed8; }
.btn.danger { color: var(--bad); border-color: #fbcaca; }
.btn.danger:hover { background: var(--bad-soft); }
.btn.sm { height: 28px; padding: 0 10px; font-size: 13px; }
.btn.ghost { border-color: transparent; background: transparent; color: var(--sub); }
.btn.ghost:hover { background: var(--bg); color: var(--text); }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline { display: inline; margin: 0; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; color: var(--sub); font-weight: 500; }
.field .help { font-size: 12px; color: var(--muted); }
input[type=text], input[type=number], input[type=password], input[type=date], input[type=datetime-local], select, textarea {
  font: inherit; height: 36px; padding: 0 11px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--text); width: 100%;
}
textarea { height: 72px; padding: 8px 11px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.form-grid .full { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); }

/* ---------- 弹窗 ---------- */
dialog { border: 0; border-radius: 14px; padding: 0; width: min(560px, 92vw); box-shadow: 0 20px 50px rgba(15, 23, 42, .18); }
dialog::backdrop { background: rgba(15, 23, 42, .35); }
dialog .dh { padding: 18px 22px 0; display: flex; justify-content: space-between; align-items: center; }
dialog .db { padding: 16px 22px; }
dialog .df { padding: 14px 22px 18px; display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--line-soft); }
dialog .x { border: 0; background: none; font-size: 20px; color: var(--muted); cursor: pointer; line-height: 1; }

/* ---------- 提示条 ---------- */
.flash { padding: 11px 14px; border-radius: 10px; margin-bottom: 14px; border: 1px solid; font-size: 13.5px; }
.flash.ok { background: var(--ok-soft); border-color: #c6efd5; color: #116a33; }
.flash.warn { background: var(--warn-soft); border-color: #fde3b0; color: #8a4b04; }
.flash.bad { background: var(--bad-soft); border-color: #fbcaca; color: #a01b1b; }
.flash.token { background: #0f172a; border-color: #0f172a; color: #e2e8f0; }
.flash.token code { color: #fff; font-size: 13px; }

/* ---------- 键值 ---------- */
.kv { display: grid; grid-template-columns: 96px 1fr; gap: 9px 12px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

/* ---------- 复制框 ---------- */
.copy { display: flex; align-items: center; gap: 8px; background: var(--bg); border: 1px solid var(--line); border-radius: 9px; padding: 6px 6px 6px 12px; }
.copy code { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--sub); }

/* ---------- 柱状图 ---------- */
.chart { display: flex; align-items: flex-end; gap: 3px; height: 140px; padding-top: 8px; }
.chart .c { flex: 1; background: #c7d7fb; border-radius: 3px 3px 0 0; min-height: 2px; position: relative; }
.chart .c:hover { background: var(--accent); }
.chart .c:hover::after { content: attr(data-tip); position: absolute; bottom: 100%; left: 50%; transform: translate(-50%, -6px); background: #0f172a; color: #fff; font-size: 12px; padding: 3px 8px; border-radius: 6px; white-space: nowrap; z-index: 2; }
.chart-x { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; margin-top: 6px; }

/* ---------- 登录 ---------- */
.login { min-height: 100vh; display: grid; place-items: center; }
.login .card { width: 360px; padding: 28px; }

/* ---------- 自助页 ---------- */
.self { max-width: 760px; margin: 0 auto; padding: 36px 20px 60px; }
.self .hero { display: flex; gap: 24px; align-items: center; }
.self .qr { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px; flex: none; }
.self .qr svg { display: block; width: 148px; height: 148px; }
.steps { margin: 0; padding-left: 20px; }
.steps li { margin: 6px 0; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line-soft); padding: 0 12px; overflow-x: auto; }
.tabs button { border: 0; background: none; padding: 12px 12px; font: inherit; font-weight: 500; color: var(--sub); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs button.on { color: var(--accent); border-bottom-color: var(--accent); }
.tab { display: none; padding: 18px 22px; }
.tab.on { display: block; }
pre.cmd { background: #0f172a; color: #e2e8f0; padding: 12px 14px; border-radius: 9px; overflow-x: auto; font-size: 12.5px; margin: 8px 0; }
@media (max-width: 640px) { .self .hero { flex-direction: column; align-items: stretch; } .self .hero .qr { align-self: flex-start; } .tabs button { padding: 12px 8px; } .topbar .in { padding: 0 14px; gap: 12px; } .page { padding: 18px 14px; } }