:root {
  --bg: #f5f6fa;
  --panel: #ffffff;
  --primary: #2f6fed;
  --primary-d: #1f55c4;
  --text: #1f2733;
  --muted: #7a869a;
  --border: #e6e9f0;
  --ok: #1fab6b;
  --warn: #e0a106;
  --err: #e0483d;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.btn { background: var(--primary); color: #fff; border: none; border-radius: 8px; padding: 9px 16px; font-size: 14px; transition: .15s; }
.btn:hover { background: var(--primary-d); }
.btn.ghost { background: #eef2fb; color: var(--primary); }
.btn.danger { background: #fdecea; color: var(--err); }
.input, textarea, select { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit; background: #fff; }
.input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); }
label { display: block; margin: 10px 0 5px; color: var(--muted); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.col { flex: 1; min-width: 220px; }
.muted { color: var(--muted); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 20px; background: #eef2fb; color: var(--primary); font-size: 12px; margin: 2px; }

/* layout */
.topbar { height: 56px; background: var(--panel); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 20px; justify-content: space-between; position: sticky; top: 0; z-index: 10; }
.topbar .brand { font-weight: 700; color: var(--primary); font-size: 16px; }
.layout { display: flex; min-height: calc(100vh - 56px); }
.sidebar { width: 200px; background: var(--panel); border-right: 1px solid var(--border); padding: 14px 0; }
.sidebar .nav { padding: 10px 20px; cursor: pointer; color: var(--text); border-left: 3px solid transparent; }
.sidebar .nav:hover { background: #f0f4ff; }
.sidebar .nav.active { background: #eef2fb; border-left-color: var(--primary); color: var(--primary); font-weight: 600; }
.content { flex: 1; padding: 22px; }

/* auth */
.auth-wrap { max-width: 380px; margin: 80px auto; }
.auth-wrap .card { padding: 28px; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 10px; }
.auth-tabs button { flex: 1; padding: 8px; border: 1px solid var(--border); background: #fff; border-radius: 8px; }
.auth-tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* stats */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .lbl { color: var(--muted); margin-top: 4px; }

table { width: 100%; border-collapse: collapse; margin-top: 8px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
.badge { padding: 2px 9px; border-radius: 20px; font-size: 12px; }
.badge.ok { background: #e7f7ef; color: var(--ok); }
.badge.partial { background: #fdf3df; color: var(--warn); }
.badge.failed { background: #fdecea; color: var(--err); }
.badge.pending { background: #eef2fb; color: var(--primary); }
.check { margin-right: 8px; }
.preview-img { max-width: 120px; max-height: 120px; border-radius: 8px; border: 1px solid var(--border); }
.section-title { font-size: 16px; font-weight: 700; margin: 0 0 12px; }
.hint { background: #fff8e6; border: 1px solid #f3e2b3; color: #8a6d1a; padding: 10px 12px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }