/* Police professional route: law navy, brass, clear evidence lines and restrained red. */
body.book-gkga {
  --ink: #253043; --muted: #697483; --line: #dbe1e7; --paper: #fffefa; --mist: #f3f5f6;
  --brand: #243e66; --brand-strong: #142840; --brand-soft: #dce5f1; --accent: #b76442; --accent-soft: #f9e5dc;
  --blue: #496f90; --blue-soft: #e4edf5; --shadow: 0 18px 46px rgba(20, 40, 64, 0.16);
  --stage: #172c44; --stage-ink: #f8f6ef; --stage-muted: rgba(248, 246, 239, 0.72); --stage-line: rgba(248, 246, 239, 0.2);
  --stage-accent: #d4b15f; --stage-acid: #bfd2b1; --stage-secondary: #b76442; --stage-surface: #fffefa; --stage-surface-strong: #eef1f1; --stage-surface-line: #dbe1e7;
  background: #f3f5f6;
}
body.book-gkga::before { background: repeating-linear-gradient(90deg, rgba(36,62,102,0.045) 0 1px, transparent 1px 58px), repeating-linear-gradient(0deg, rgba(183,100,66,0.03) 0 1px, transparent 1px 58px); opacity: 0.76; }
body.book-gkga .brand-mark { color: #d4b15f; border-color: #d4b15f; box-shadow: 5px 5px 0 #b76442; }
body.book-gkga .hero-band::before { content: "LAW / 24"; }
body.book-gkga .hero-band::after { content: "警"; color: transparent; -webkit-text-stroke-color: rgba(212,177,95,0.24); font-family: "Microsoft YaHei", sans-serif; }
body.book-gkga .book-preview::after { content: "SOURCE / 10P"; }
body.book-gkga .hero-band .primary-button, body.book-gkga .primary-button { box-shadow: 5px 5px 0 #b76442; }
body.book-gkga .hero-band .primary-button:hover, body.book-gkga .primary-button:hover { box-shadow: 1px 1px 0 #b76442; }
body.book-gkga .stat::before, body.book-gkga .course-item::before, body.book-gkga .practice-item::before, body.book-gkga .paper-card::before, body.book-gkga .progress-bar span, body.book-gkga .quiz-meter span { background: #b76442; }
body.book-gkga .section:nth-of-type(odd) { background: rgba(255,255,255,0.7); }
@media (max-width: 720px) { body.book-gkga .hero-band::after { font-size: 180px; } }

/* Keep the route-specific landing composition compact after the shared visual layer. */
body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-band,
body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid { min-height: 520px; }
body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid {
  align-items: center;
  padding-top: 60px;
  padding-bottom: 40px;
}
body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid h1 { font-size: 64px; }
body.book-gkga:not(.book-bsks):not(.book-zsb) .book-preview {
  min-height: 0;
  padding: 18px 18px 16px;
}
body.book-gkga:not(.book-bsks):not(.book-zsb) .book-preview::before,
body.book-gkga:not(.book-bsks):not(.book-zsb) .book-preview::after { content: none; }
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage { min-height: 350px; }
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img {
  position: relative;
  width: 100%;
  height: 170px;
  aspect-ratio: auto;
}
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img:nth-child(1) { transform: rotate(-3deg); }
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img:nth-child(2) { transform: rotate(2deg); }
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img:nth-child(3) { transform: rotate(1deg); }
body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img:nth-child(4) { transform: rotate(-2deg); }

@media (max-width: 920px) {
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid {
    min-height: auto;
    padding-top: 48px;
    padding-bottom: 34px;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .book-preview { min-height: 0; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage { min-height: 310px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img { height: 150px; }
}

@media (max-width: 560px) {
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid h1 { font-size: 42px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage { min-height: 270px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .preview-collage img { height: 130px; }
}

@media (min-width: 921px) {
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.7fr);
    gap: 48px;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-grid h1 {
    margin-top: 12px;
    margin-bottom: 18px;
    font-size: 56px;
    line-height: 0.92;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-lede,
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-description,
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-source { max-width: 680px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-lede {
    margin-bottom: 10px;
    font-size: 19px;
    line-height: 1.5;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-description {
    font-size: 15px;
    line-height: 1.6;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-signal-row { margin-top: 12px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-actions { margin-top: 24px; }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .hero-copy .hero-source {
    margin-top: 10px;
    font-size: 13px;
    line-height: 1.55;
  }
  body.book-gkga:not(.book-bsks):not(.book-zsb) .landing-section { padding-top: 36px; }
}