:root {
  --h5-ink: #10233f;
  --h5-soft: #5a6d86;
  --h5-accent: #0b6e6e;
  --h5-warm: #c45c26;
  --h5-line: rgba(16, 35, 63, 0.1);
  --h5-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --h5-body: "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--h5-body);
  color: var(--h5-ink);
  background: #dfe8ec;
}

.h5-shell {
  min-height: 100vh;
  padding: 16px 12px 28px;
  background:
    radial-gradient(circle at 12% 8%, rgba(11,110,110,.18), transparent 36%),
    radial-gradient(circle at 90% 0%, rgba(196,92,38,.14), transparent 30%),
    linear-gradient(165deg, #e8f1f4, #f4efe6);
}

.h5-toolbar {
  width: min(100%, 390px);
  margin: 0 auto 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.h5-btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.h5-btn-primary {
  background: linear-gradient(135deg, var(--h5-accent), #0f8a8a);
  color: #fff;
  box-shadow: 0 10px 20px rgba(11,110,110,.22);
}
.h5-btn-warm {
  background: linear-gradient(135deg, var(--h5-warm), #d9783d);
  color: #fff;
}
.h5-btn-ghost {
  background: rgba(255,255,255,.85);
  color: var(--h5-ink);
  border: 1px solid var(--h5-line);
}
.h5-tip {
  width: min(100%, 390px);
  margin: 0 auto 10px;
  min-height: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--h5-accent);
}

.h5-poster-wrap {
  width: min(100%, 390px);
  margin: 0 auto;
}

#brochurePoster {
  width: 100%;
  border-radius: 22px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 18px 40px rgba(16,35,63,.12);
}

.poster-hero {
  position: relative;
  padding: 28px 22px 24px;
  color: #fff;
  background:
    linear-gradient(125deg, rgba(16,35,63,.88), rgba(11,110,110,.72)),
    url("https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=900&q=80") center/cover;
}
.poster-kicker {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .08em;
  margin-bottom: 12px;
}
.poster-brand {
  font-family: var(--h5-display);
  font-size: 22px;
  line-height: 1.25;
  margin: 0 0 10px;
}
.poster-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  margin: 0;
}
.poster-sub {
  margin-top: 10px;
  font-size: 13px;
  opacity: .9;
}

.poster-body {
  padding: 18px 18px 22px;
}
.poster-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.poster-meta-item {
  background: linear-gradient(160deg, #f7fbfb, #f8f4ee);
  border: 1px solid var(--h5-line);
  border-radius: 14px;
  padding: 12px;
}
.poster-meta-item .label {
  font-size: 12px;
  color: var(--h5-soft);
}
.poster-meta-item .value {
  margin-top: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--h5-ink);
}
.poster-meta-item .value.price {
  color: var(--h5-warm);
}

.poster-section-title {
  font-family: var(--h5-display);
  font-size: 18px;
  margin: 0 0 8px;
}
.poster-content {
  font-size: 14px;
  line-height: 1.7;
  color: var(--h5-soft);
}
.poster-content h3 {
  color: var(--h5-ink);
  font-size: 15px;
  margin: 14px 0 6px;
}
.poster-content p { margin: 0 0 8px; }

.poster-cta {
  margin-top: 18px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(11,110,110,.08);
  text-align: center;
}
.poster-cta .cta-text {
  font-size: 13px;
  color: var(--h5-soft);
  margin-bottom: 10px;
}
.poster-cta .cta-btn {
  display: inline-block;
  min-width: 160px;
  padding: 11px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--h5-accent), #0f8a8a);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.poster-foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--h5-line);
  font-size: 12px;
  color: var(--h5-soft);
  text-align: center;
  line-height: 1.5;
}

@media (min-width: 768px) {
  .h5-shell { padding-top: 28px; }
}