:root {
  --bg: #ffffff;
  --side: #f7f8fa;
  --line: #e5e7eb;
  --ink: #111827;
  --ink-2: #6b7280;
  --ink-3: #8a8f99;
  --brand: #2f6fed;
  --ok: #16a34a;
  --warn: #b45309;
  --danger: #dc2626;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
h1, h2 { margin: 0; }
.muted { color: var(--ink-2); }
.small { font-size: 12px; }
.label { font-size: 12px; color: var(--ink-3); margin: 16px 0 6px; }

/* 布局 */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--side); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 16px 12px;
}
.brand { display: flex; align-items: center; gap: 8px; padding: 4px 8px 16px; font-weight: 600; }
.brand-mark { color: var(--brand); font-size: 18px; }
.brand-mark.lg { font-size: 28px; }
.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  padding: 9px 10px; border-radius: 8px; color: var(--ink); font-size: 14px;
}
.nav-item:hover { background: #eef1f6; text-decoration: none; }
.nav-item.on { background: #e7edfb; color: var(--brand); font-weight: 600; }
.side-foot { border-top: 1px solid var(--line); padding-top: 12px; display: flex; justify-content: space-between; align-items: center; }
.who-name { font-size: 13px; }
.who-role { font-size: 12px; color: var(--ink-3); }

.main, .page { padding: 24px 28px; }
.page.narrow { max-width: 560px; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.page-title { font-size: 20px; font-weight: 600; }
.sec { font-size: 15px; font-weight: 600; margin: 28px 0 10px; }

/* 卡片 */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat-n { font-size: 26px; font-weight: 600; }
.stat-n.warn { color: var(--warn); }
.stat-l { font-size: 12px; color: var(--ink-3); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.ws-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
.ws-head { display: flex; align-items: center; justify-content: space-between; }
.ws-name { font-weight: 600; }
.ws-meta { color: var(--ink-2); font-size: 13px; display: grid; gap: 2px; }
.ws-actions { display: flex; gap: 8px; align-items: center; }
.assign { display: flex; gap: 8px; align-items: center; }
.quick { display: flex; gap: 10px; margin-top: 20px; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.table th, .table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { font-size: 12px; color: var(--ink-3); font-weight: 500; }

/* 表单 */
.form { display: grid; gap: 14px; margin-top: 16px; }
.field { display: grid; gap: 6px; }
.field > span { font-size: 13px; color: var(--ink-2); }
input, select, button { font: inherit; }
.input {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink);
}
.input:focus { outline: 2px solid #c7d8ff; border-color: var(--brand); }
.input.sm { padding: 6px 8px; font-size: 13px; width: auto; }
.row { display: flex; gap: 10px; margin-top: 4px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; color: var(--ink); cursor: pointer; font-size: 14px;
}
.btn:hover { background: #f5f6f8; text-decoration: none; }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { filter: brightness(0.95); }
.btn.sm { padding: 5px 10px; font-size: 13px; }
.btn.danger { color: var(--danger); border-color: #f3c7c7; }
.btn.block { width: 100%; }
.btn-link { background: none; border: 0; color: var(--ink-3); cursor: pointer; font-size: 12px; }

/* 标签与提示 */
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #f1f3f6; color: var(--ink-2); }
.tag.ok { background: #e8f6ee; color: var(--ok); }
.tag.warn { background: #fdf1e3; color: var(--warn); }
.tag.danger { background: #fdeaea; color: var(--danger); }

.alert { border: 1px solid #f3c7c7; background: #fdf2f2; color: #a11; border-radius: 8px; padding: 10px 12px; margin: 12px 0; }
.alert.ok { border-color: #cfe9d9; background: #f0faf4; color: #146c43; }

/* 登录与独立页 */
.login-wrap { min-height: 100vh; display: grid; place-items: center; background: var(--side); }
.login-card { width: 360px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 28px; }
.login-brand { text-align: center; margin-bottom: 18px; }
.login-brand h1 { font-size: 20px; margin: 6px 0 2px; }
.login-brand p { margin: 0; font-size: 13px; }
.foot-note { text-align: center; color: var(--ink-3); font-size: 12px; margin: 18px 0 0; }

.center-card { max-width: 520px; margin: 12vh auto; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.center-card h1 { font-size: 18px; margin-bottom: 8px; }
.meta { display: flex; gap: 16px; color: var(--ink-2); font-size: 13px; margin: 14px 0 20px; }
.kv { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; margin: 16px 0; }
.kv dt { color: var(--ink-3); font-size: 13px; }
.kv dd { margin: 0; }
.code { background: #f7f8fa; border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; font-size: 12px; }

.tabs { display: flex; gap: 18px; border-bottom: 1px solid var(--line); margin: 18px 0; }
.tab { padding: 8px 2px; color: var(--ink-3); }
.tab.on { color: var(--brand); border-bottom: 2px solid var(--brand); font-weight: 600; }
.empty { border: 1px dashed var(--line); border-radius: var(--radius); padding: 28px; }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; align-items: center; gap: 12px; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .side-foot { border-top: 0; }
}

/* 轨迹时间线 */
.timeline { list-style: none; margin: 18px 0 0; padding: 0; }
.ev { display: grid; grid-template-columns: 72px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.ev-time { color: var(--ink-3); font-size: 12px; padding-top: 3px; }
.ev-text { margin: 6px 0 0; white-space: pre-wrap; font: 13px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; background: #f7f8fa; border-radius: 8px; padding: 10px 12px; max-height: 320px; overflow: auto; }
.ev-tool .ev-head { color: var(--ink-2); }
.ev-head { display: flex; gap: 8px; align-items: center; }