* { box-sizing: border-box; }
body {
  margin: 0;
  color: #101828;
  background: #f5f7fb;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
a { color: #1677ff; text-decoration: none; }
h1 { font-size: 22px; margin: 0 0 6px; }
button, input, select, textarea { font-family: inherit; font-size: 14px; }
.app { display: flex; min-height: 100vh; }
aside {
  width: 220px;
  flex-shrink: 0;
  background: #0f172a;
  color: #fff;
  padding: 20px 14px;
}
.brand { font-weight: 700; font-size: 18px; padding: 4px 10px 18px; }
aside nav a,
aside button.link {
  display: block;
  width: 100%;
  text-align: left;
  color: #cbd5e1;
  background: transparent;
  border: 0;
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
}
aside nav a.on,
aside nav a:hover,
aside button.link:hover { background: #1e293b; color: #fff; }
.who { color: #94a3b8; font-size: 12px; padding: 16px 12px 0; }
main { flex: 1; padding: 24px; min-width: 0; }
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.sub { margin: 0; color: #667085; font-size: 13px; line-height: 1.6; }
.meta { color: #667085; font-size: 13px; }
.hint { color: #667085; font-size: 12px; margin-top: 4px; }
.cards { display: flex; flex-wrap: wrap; margin: 0 -8px 8px; }
.card {
  background: #fff;
  border-radius: 12px;
  padding: 16px 18px;
  margin: 8px;
  min-width: 140px;
  flex: 1;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}
.card span { color: #667085; font-size: 13px; }
.card b { display: block; margin-top: 6px; font-size: 28px; }
.note {
  background: #f5f9ff;
  border: 1px solid #d6e6ff;
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 16px;
}
.note p { margin: 0 0 8px; }
pre {
  margin: 0 0 10px;
  background: #0f172a;
  color: #e6edf7;
  padding: 12px;
  border-radius: 8px;
  overflow: auto;
  font-size: 13px;
}
.table-wrap {
  overflow: auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid #eef0f4;
  vertical-align: middle;
}
th { color: #667085; font-weight: 600; background: #fafbfc; }
td.empty { text-align: center; color: #98a2b3; padding: 28px; }
.mono { font-family: Consolas, "Courier New", monospace; font-size: 12px; word-break: break-all; }
.url { word-break: break-all; color: #475467; font-size: 12px; max-width: 460px; }
.flash { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }
.flash.ok { background: #e8f8ef; color: #137333; }
.flash.err { background: #fff1f0; color: #cf1322; }
.btn {
  display: inline-block;
  height: 36px;
  line-height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  border: 0;
  background: #1677ff;
  color: #fff;
  cursor: pointer;
  text-decoration: none;
}
.btn.ghost { background: #fff; color: #1677ff; border: 1px solid #c9ddff; }
.btn.danger { background: #fff; color: #cf1322; border: 1px solid #ffccc7; }
.btn.tiny { height: 28px; line-height: 26px; padding: 0 8px; font-size: 12px; }
.form-actions { margin-top: 8px; }
.form-actions .btn { margin-right: 8px; }
.actions form, .inline { display: inline; }
.actions .btn, .actions form { margin-right: 6px; }
button.tag {
  border: 0;
  cursor: pointer;
  font: inherit;
}
.tag {
  display: inline-block;
  min-width: 42px;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 12px;
  line-height: 20px;
}
.tag.on { background: #e8f8ef; color: #137333; }
.tag.off { background: #f4f4f5; color: #667085; }
.form label { display: block; margin: 14px 0; }
.form .lbl { display: block; margin-bottom: 6px; color: #344054; }
.form input[type="text"],
.form input[type="password"],
.form input[type="number"],
.form input[type="url"],
.form select,
.form textarea {
  width: 100%;
  max-width: 560px;
  height: 40px;
  border: 1px solid #d0d5dd;
  border-radius: 8px;
  padding: 0 12px;
  background: #fff;
}
.form textarea { height: 88px; padding: 8px 12px; }
.form input[type="file"] { height: auto; padding: 8px 0; border: 0; background: transparent; }
.cover-preview { width: 220px; max-width: 100%; border-radius: 8px; display: block; margin: 8px 0; border: 1px solid #e4e7ec; }
.check { display: flex; align-items: flex-start; max-width: 640px; line-height: 1.5; }
.check input { margin: 3px 8px 0 0; }
.pager { margin-top: 14px; }
.pager a {
  display: inline-block;
  margin-right: 6px;
  padding: 4px 10px;
  background: #fff;
  border-radius: 6px;
  border: 1px solid #e4e7ec;
}
.pager a.on { background: #1677ff; color: #fff; border-color: #1677ff; }
.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-card {
  width: 420px;
  max-width: 100%;
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 8px 30px rgba(16, 24, 40, 0.08);
}
.qr-grid { display: flex; flex-wrap: wrap; margin: 0 -8px; }
.qr-card {
  width: 240px;
  margin: 8px;
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}
.qr-img svg { width: 200px; height: 200px; display: block; }
.qr-title { margin-top: 10px; font-weight: 600; word-break: break-all; }
.qr-spot, .qr-url { margin-top: 4px; color: #667085; font-size: 12px; word-break: break-all; }
.qr-miss { height: 200px; display: flex; align-items: center; color: #cf1322; }
@media print {
  aside, .page-head .btn, .flash { display: none !important; }
  .app { display: block; }
  main { padding: 0; }
  .qr-card { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
}
@media (max-width: 800px) {
  .app { display: block; }
  aside { width: auto; }
  .page-head { display: block; }
  .page-head .btn { margin-top: 12px; }
}