:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --line: #e2e6ea;
  --text: #1f2328;
  --muted: #6b7280;
  --red: #c0392b;
  --green: #2e7d32;
  --amber: #b8860b;
  --blue: #1d4ed8;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.6 "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
}
h1 { font-size: 20px; margin: 0 0 6px; }
h3 { font-size: 15px; margin: 0 0 10px; color: #111827; }
code { background: #eef1f4; padding: 1px 5px; border-radius: 3px; font-size: 12px; }
.muted { color: var(--muted); }
.grow { flex: 1; }
.sep { color: var(--line); margin: 0 6px; }

/* 登录门 */
.gate { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #f7f9fb, #eceff3); z-index: 50; }
.gate-box { width: 380px; background: var(--card); padding: 28px; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.08); border: 1px solid var(--line); }
.gate-sub { color: var(--muted); margin: 0 0 18px; font-size: 13px; }
.gate-box label { display: block; margin-bottom: 12px; font-size: 13px; color: #374151; }
.gate-box input { width: 100%; margin-top: 4px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 14px; }
.gate-msg { margin-top: 10px; min-height: 20px; font-size: 13px; color: var(--red); }
.gate-conn { margin: 0 0 12px; padding: 8px 10px; border-radius: 6px; font-size: 12.5px; line-height: 1.5;
  background: #f4f6f8; border: 1px solid var(--line); color: var(--muted); }
.gate-conn.ok { background: #eef7ef; border-color: #b7dfbb; color: #1f6b2a; }
.gate-conn.bad { background: #fdf6e3; border-color: #e6cf8a; color: #8a6100; }
.gate-box .btn.small { margin-top: 8px; width: 100%; }
.gate-tip { margin-top: 14px; font-size: 12px; color: var(--muted); }

/* 顶栏 */
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 10px 18px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 600; font-size: 16px; }
.ver { font-size: 11px; color: var(--muted); margin-left: 6px; font-weight: 400; }
.topbar-right { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: #9ca3af; }
.dot.on { background: var(--green); }
.dot.off { background: #d1d5db; }

/* 标签页 */
.tabs { display: flex; gap: 2px; padding: 0 12px; background: var(--card); border-bottom: 1px solid var(--line); }
.tab { padding: 10px 16px; border: 0; background: transparent; cursor: pointer; font-size: 14px; color: var(--muted); border-bottom: 2px solid transparent; }
.tab.active { color: var(--red); border-bottom-color: var(--red); font-weight: 600; }

.panel { padding: 14px; }
.row { display: flex; gap: 14px; flex-wrap: wrap; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px; margin-bottom: 14px; flex: 1 1 340px; }
.card.full { flex-basis: 100%; }
.form-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 10px; }
.form-row label { display: flex; flex-direction: column; font-size: 12px; color: #374151; gap: 4px; }
.form-row label.chk { flex-direction: row; align-items: center; gap: 6px; font-size: 13px; color: var(--text); }
label.full { display: block; font-size: 12px; color: #374151; margin-bottom: 10px; }
input, select, textarea { padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; font-size: 13px; background: #fff; color: var(--text); }
textarea { width: 100%; font-family: Consolas, monospace; }
.hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.hint.warn-text { color: var(--amber); }
.kv { font-size: 12px; color: #374151; margin-top: 8px; }
.kv div { padding: 1px 0; }

/* 按钮 */
.btn { padding: 8px 14px; border: 1px solid var(--line); background: #fff; border-radius: 6px; cursor: pointer; font-size: 13px; color: var(--text); }
.btn:hover { border-color: #c7ccd2; }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: #a93226; }
.btn.danger { background: #fff; border-color: var(--red); color: var(--red); }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* 统计与卡片结果 */
.stat { font-size: 13px; color: #374151; }
.stat.ok b { color: var(--green); }
.stat.bad b { color: var(--red); }
.stat.warn b { color: var(--amber); }
.last-card { margin: 10px 0; padding: 10px 12px; border-radius: 6px; background: #f8fafc; border: 1px solid var(--line); font-family: Consolas, monospace; font-size: 13px; }
.last-card.ok { background: #eef7ef; border-color: #b7dfbb; }
.last-card.bad { background: #fdeeee; border-color: #f1bcbc; }
.last-card.warn { background: #fdf6e3; border-color: #e6cf8a; }

/* 标签 */
.tag { display: inline-block; padding: 1px 6px; border-radius: 10px; font-size: 11px; background: #eef1f4; color: #4b5563; }
.tag.warn { background: #fdf1d6; color: #92400e; }
.chk-label { font-size: 12px; color: #374151; }

/* 表格 */
.grid { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.grid th, .grid td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; }
.grid th { background: #f6f8fa; color: #374151; font-weight: 600; }
.grid td { font-family: Consolas, monospace; }
.grid tr.pass td { color: var(--green); }
.grid tr.fail td { color: var(--red); }
.grid tr.skip td { color: var(--amber); }

/* 日志 */
.log-card { flex-basis: 100%; }
.log { height: 220px; overflow: auto; background: #0f172a; color: #d5dbe5; border-radius: 6px; padding: 10px; font: 12px/1.7 Consolas, monospace; }
.log .l-info { color: #9fb3c8; }
.log .l-ok { color: #6ee7a8; }
.log .l-warn { color: #fcd34d; }
.log .l-error { color: #fca5a5; }
.log .l-tx { color: #93c5fd; }
.log .l-rx { color: #c4b5fd; }