:root {
  color-scheme: light;
  --qb-page: #f5f7f9;
  --qb-surface: #ffffff;
  --qb-text: #0f172a;
  --qb-muted: #5b6570;
  --qb-border: #e3e9ee;
  --qb-blue: #1d4e79;
  --qb-navy: #123c5e;
  --qb-green: #0b6b3a;
  --line: var(--qb-border);
  --muted: var(--qb-muted);
  --en: var(--qb-text);
  --zh: var(--qb-blue);
  --ink: var(--qb-text);
  --paper: var(--qb-page);
  --green: var(--qb-green);
  --badge: #eff6ff;
  --badge-line: #bfdbfe;
}

html { background: var(--qb-page); color: var(--qb-text); }
body {
  background: var(--qb-page) !important;
  color: var(--qb-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}
body > .wrap {
  background: transparent !important;
  box-shadow: none !important;
}
a { color: var(--qb-blue); }
img, video { max-width: 100%; }

.qb-sitebar {
  position: relative;
  z-index: 40;
  background: var(--qb-navy);
  color: #fff;
  border-bottom: 3px solid #c69b48;
}
.qb-sitebar__inner {
  width: min(72rem, calc(100% - 2rem));
  min-height: 58px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
}
.qb-sitebar__brand,
.qb-sitebar__home {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  width: fit-content;
  color: #fff;
  font-size: .9rem;
  font-weight: 650;
  text-decoration: none;
}
.qb-sitebar__home:hover { color: #f5d99a; }
.qb-sitebar__mark {
  display: inline-grid;
  width: 1.8rem;
  height: 1.8rem;
  place-items: center;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: .45rem;
  color: #f5d99a;
  font-size: 1rem;
  font-weight: 800;
}
.qb-sitebar__title {
  overflow: hidden;
  color: #e6eef5;
  font-size: .9rem;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.qb-sitebar__home { justify-self: end; font-size: .82rem; }

.hero {
  background: linear-gradient(135deg, #123c5e, #1d4e79 55%, #2a6ca0) !important;
  color: #fff;
}
.hero .sub { color: #d5e3ef; }
.toolbar {
  border-color: var(--qb-border) !important;
  background: rgba(255,255,255,.97) !important;
  box-shadow: 0 1px 3px rgba(16,24,40,.06) !important;
}
a.card {
  border-color: var(--qb-border) !important;
  border-radius: 12px !important;
  background: var(--qb-surface) !important;
  box-shadow: 0 1px 2px rgba(16,24,40,.04) !important;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
a.card:hover {
  border-color: #b7c9d8 !important;
  box-shadow: 0 5px 14px rgba(16,24,40,.08) !important;
}
.q {
  border-color: var(--qb-border) !important;
  border-radius: 12px !important;
  background: var(--qb-surface) !important;
  box-shadow: 0 1px 2px rgba(16,24,40,.035);
}
li.opt { border-radius: 8px; }

button, input, select, textarea { font-family: inherit; }
button { border-radius: 8px; transition: background-color .15s ease, border-color .15s ease; }
button:focus-visible,
a:focus-visible,
summary:focus-visible,
[role="button"]:focus-visible {
  outline: 3px solid #e2b85f;
  outline-offset: 2px;
}
@media (max-width: 600px) {
  .qb-sitebar__inner {
    width: calc(100% - 1.5rem);
    min-height: 56px;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: .25rem .75rem;
    padding: .5rem 0;
  }
  .qb-sitebar__title {
    grid-column: 1 / -1;
    grid-row: 2;
    max-width: 100%;
    text-align: left;
  }
  .qb-sitebar__home { grid-column: 2; grid-row: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}
.report .qb-report-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--qb-navy, #123c5e);
  background: var(--qb-navy, #123c5e);
  color: #fff;
  text-decoration: none;
}
.report .qb-report-home:focus-visible { outline: 2px solid var(--qb-navy, #123c5e); outline-offset: 3px; }
@media print {
  .qb-sitebar { display: none !important; }
  body { background: #fff !important; }
  body > .wrap { padding-top: 0 !important; }
}