/* Guangdong city route: Pearl River blue, kiln red, ink and sea-glass green. */
body.book-gdcs {
  --ink: #202c35;
  --muted: #6c7880;
  --line: #d5dde2;
  --paper: #fcfdfd;
  --mist: #eef4f6;
  --brand: #2b6680;
  --brand-strong: #1d4658;
  --brand-soft: #deedf2;
  --accent: #b95b45;
  --accent-soft: #f8e6e0;
  --blue: #3f8297;
  --blue-soft: #e2f0f3;
  --shadow: 0 18px 46px rgba(29, 70, 88, 0.14);
  --stage: #182a32;
  --stage-ink: #f5f8f8;
  --stage-muted: rgba(245, 248, 248, 0.7);
  --stage-line: rgba(245, 248, 248, 0.2);
  --stage-accent: #d9ad59;
  --stage-acid: #a3c9bf;
  --stage-secondary: #b95b45;
  --stage-surface: #fcfdfd;
  --stage-surface-strong: #e8f1f3;
  --stage-surface-line: #d5dde2;
  background: #eef4f6;
}

body.book-gdcs::before {
  background:
    repeating-linear-gradient(90deg, rgba(43, 102, 128, 0.045) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(185, 91, 69, 0.03) 0 1px, transparent 1px 64px);
  opacity: 0.7;
}

body.book-gdcs .brand-mark {
  color: #d9ad59;
  border-color: #d9ad59;
  box-shadow: 5px 5px 0 #b95b45;
}

body.book-gdcs .hero-band::before { content: "COAST / 20"; }
body.book-gdcs .hero-band::after {
  content: "粤";
  color: transparent;
  -webkit-text-stroke-color: rgba(217, 173, 89, 0.22);
  font-family: "Microsoft YaHei", sans-serif;
}
body.book-gdcs .book-preview::after { content: "SOURCE / 10P"; }

body.book-gdcs .hero-band .primary-button,
body.book-gdcs .primary-button { box-shadow: 5px 5px 0 #b95b45; }
body.book-gdcs .hero-band .primary-button:hover,
body.book-gdcs .primary-button:hover { box-shadow: 1px 1px 0 #b95b45; }

body.book-gdcs .stat::before,
body.book-gdcs .course-item::before,
body.book-gdcs .practice-item::before,
body.book-gdcs .paper-card::before,
body.book-gdcs .progress-bar span,
body.book-gdcs .quiz-meter span { background: #b95b45; }

body.book-gdcs .hero-grid h1,
body.book-gdcs .focus-card h2,
body.book-gdcs .stat strong { letter-spacing: 0; }
body.book-gdcs .section:nth-of-type(odd) { background: rgba(255, 255, 255, 0.64); }

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