/* Adult higher-education route: paper white, cobalt ink, citrus orange and plum. */
body.book-crk {
  --ink: #24304a;
  --muted: #6b7484;
  --line: #d9dee8;
  --paper: #fcfcfa;
  --mist: #eef2f8;
  --brand: #315b9b;
  --brand-strong: #203b68;
  --brand-soft: #e2ebf8;
  --accent: #d46f3d;
  --accent-soft: #f9e8dd;
  --blue: #537fb4;
  --blue-soft: #e3eef8;
  --shadow: 0 18px 46px rgba(32, 59, 104, 0.14);
  --stage: #1f2b3d;
  --stage-ink: #f8f6ee;
  --stage-muted: rgba(248, 246, 238, 0.7);
  --stage-line: rgba(248, 246, 238, 0.2);
  --stage-accent: #e3b05a;
  --stage-acid: #b6d1ba;
  --stage-secondary: #d46f3d;
  --stage-surface: #fcfcfa;
  --stage-surface-strong: #e8eff8;
  --stage-surface-line: #d9dee8;
  background: #eef2f8;
}

body.book-crk::before {
  background:
    repeating-linear-gradient(90deg, rgba(49, 91, 155, 0.04) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(212, 111, 61, 0.028) 0 1px, transparent 1px 64px);
  opacity: 0.72;
}

body.book-crk .brand-mark {
  color: #e3b05a;
  border-color: #e3b05a;
  box-shadow: 5px 5px 0 #d46f3d;
}

body.book-crk .hero-band::before {
  content: "STUDY / 01";
}

body.book-crk .hero-band::after {
  content: "学";
  color: transparent;
  -webkit-text-stroke-color: rgba(227, 176, 90, 0.22);
  font-family: "Microsoft YaHei", sans-serif;
}

body.book-crk .book-preview::after {
  content: "SOURCE / 10P";
}

body.book-crk .hero-band .primary-button,
body.book-crk .primary-button {
  box-shadow: 5px 5px 0 #d46f3d;
}

body.book-crk .hero-band .primary-button:hover,
body.book-crk .primary-button:hover {
  box-shadow: 1px 1px 0 #d46f3d;
}

body.book-crk .stat::before,
body.book-crk .course-item::before,
body.book-crk .practice-item::before,
body.book-crk .paper-card::before,
body.book-crk .progress-bar span,
body.book-crk .quiz-meter span {
  background: #d46f3d;
}

body.book-crk .hero-grid h1,
body.book-crk .focus-card h2,
body.book-crk .stat strong {
  letter-spacing: 0;
}

body.book-crk .section:nth-of-type(odd) {
  background: rgba(255, 255, 255, 0.64);
}

@media (max-width: 720px) {
  body.book-crk .hero-band::after {
    font-size: 180px;
  }
}