:root {
  --primary: #1a5fb4;
  --primary-dark: #14488a;
  --bg: #f3f5f8;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1f2937;
  --muted: #6b7280;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
  --info: #2563eb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.hidden { display: none !important; }
button { cursor: pointer; font-family: inherit; }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a5fb4 0%, #0d3a6b 100%);
}
.login-card {
  background: #fff; padding: 44px 40px; border-radius: 14px; width: 380px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25); text-align: center;
}
.login-logo { font-size: 46px; }
.login-card h1 { font-size: 22px; margin: 10px 0 4px; color: var(--primary-dark); }
.login-sub { color: var(--muted); margin: 0 0 26px; font-size: 13px; }
.login-card input {
  width: 100%; padding: 12px 14px; margin-bottom: 14px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px;
}
.login-card button {
  width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none;
  border-radius: 8px; font-size: 16px; letter-spacing: 4px;
}
.login-card button:hover { background: var(--primary-dark); }
.login-error { color: var(--err); margin-top: 10px; min-height: 18px; font-size: 13px; }
.login-hint { margin-top: 16px; color: #9aa3af; font-size: 12px; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; gap: 24px; background: var(--primary-dark);
  color: #fff; padding: 0 22px; height: 56px;
}
.brand { font-weight: 700; font-size: 16px; white-space: nowrap; }
.nav { display: flex; gap: 4px; flex: 1; }
.nav button {
  background: transparent; border: none; color: #cfe0f5; padding: 8px 14px;
  border-radius: 6px; font-size: 14px;
}
.nav button:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav button.active { background: var(--primary); color: #fff; }
.user-box { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.llm-badge { background: rgba(255,255,255,.15); padding: 3px 9px; border-radius: 12px; font-size: 12px; }
.role-pill { background: var(--info); padding: 2px 9px; border-radius: 10px; font-size: 12px; }
.link-btn { background: none; border: 1px solid rgba(255,255,255,.4); color: #fff; padding: 4px 10px; border-radius: 6px; }
.link-btn:hover { background: rgba(255,255,255,.15); }

/* ---------- 主体 ---------- */
.main { padding: 22px; max-width: 1240px; margin: 0 auto; }
.page-title { font-size: 19px; margin: 0 0 16px; color: var(--primary-dark); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px 20px; margin-bottom: 18px;
}
.card h3 { margin: 0 0 14px; font-size: 15px; }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.col { flex: 1; min-width: 240px; }

/* 统计卡 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px;
}
.stat .num { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: #f8fafc; color: #475569; font-weight: 600; white-space: nowrap; }
tr:hover td { background: #fafcff; }
.table-wrap { overflow-x: auto; }

/* 控件 */
input, select, textarea {
  padding: 9px 11px; border: 1px solid var(--border); border-radius: 7px; font-size: 14px;
  font-family: inherit;
}
select { background: #fff; }
.btn {
  background: var(--primary); color: #fff; border: none; padding: 9px 16px; border-radius: 7px; font-size: 14px;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { background: #9bb4d4; cursor: not-allowed; }
.btn-sm { padding: 5px 11px; font-size: 13px; }
.btn-ghost { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-ghost:hover { background: #eef4fc; }
.btn-danger { background: #fff; color: var(--err); border: 1px solid var(--err); }
.btn-danger:hover { background: #fef2f2; }

/* 状态标签 */
.badge { padding: 2px 9px; border-radius: 10px; font-size: 12px; white-space: nowrap; display: inline-block; }
.badge.ok { background: #dcfce7; color: var(--ok); }
.badge.warn { background: #fef3c7; color: var(--warn); }
.badge.err { background: #fee2e2; color: var(--err); }
.badge.info { background: #dbeafe; color: var(--info); }
.badge.muted { background: #f1f5f9; color: var(--muted); }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12px; }

/* 上传区 */
.dropzone {
  border: 2px dashed #b9c6da; border-radius: 10px; padding: 30px; text-align: center;
  color: var(--muted); background: #fbfdff; transition: .15s;
}
.dropzone.drag { border-color: var(--primary); background: #eef4fc; }

/* toast */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: #111827; color: #fff; padding: 11px 20px; border-radius: 8px; font-size: 14px;
  box-shadow: 0 8px 24px rgba(0,0,0,.3); z-index: 999;
}
.toast.err { background: #b91c1c; }
.toast.ok { background: #15803d; }

/* 字段说明列表 */
.field-list { display: grid; gap: 8px; }
.field-item { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.field-item .fname { font-weight: 600; }
.field-item .freq { color: var(--err); font-size: 12px; margin-left: 6px; }
.field-item .fdesc { color: var(--muted); font-size: 12px; margin-top: 3px; }

.detail-grid { display: grid; grid-template-columns: 130px 1fr; gap: 8px 14px; font-size: 13px; }
.detail-grid .k { color: var(--muted); }
pre.preview {
  background: #0f172a; color: #cbd5e1; padding: 14px; border-radius: 8px; max-height: 320px;
  overflow: auto; font-size: 12px; white-space: pre-wrap; line-height: 1.5;
}
.tag-domain { background: #eef4fc; color: var(--primary-dark); padding: 2px 8px; border-radius: 6px; font-size: 12px; }