.detail-page {
  background: #f5f8fc;
  color: #0d1b2a;
}

.detail-page .header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 58, 112, 0.1);
}

.detail-main {
  overflow: hidden;
}

.detail-hero {
  padding: 68px 0 54px;
  background: linear-gradient(135deg, #ffffff 0%, #eef6fb 58%, #dcecf8 100%);
}

.detail-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1.18fr);
  gap: 44px;
  align-items: center;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  color: #0071bc;
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.detail-copy h1 {
  margin: 0;
  color: #003a70;
  font-size: clamp(2.4rem, 5vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.detail-copy .lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: #4b6076;
  font-size: clamp(1rem, 1.3vw, 1.22rem);
  line-height: 1.8;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.detail-media {
  margin: 0;
  border: 1px solid rgba(0, 58, 112, 0.12);
  border-radius: 28px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 30px 80px rgba(0, 58, 112, 0.14);
}

.detail-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 20px;
  object-fit: contain;
  background: #eef6fb;
}

.detail-section {
  padding: 76px 0;
}

.detail-section .section-title {
  margin-bottom: 28px;
}

.detail-section .section-title p {
  color: #53677d;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.gallery-card,
.gallery-placeholder {
  min-height: 240px;
  border: 1px solid #d9e3ef;
  border-radius: 22px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 18px 45px rgba(0, 58, 112, 0.08);
}

.gallery-card {
  margin: 0;
}

.gallery-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #eef6fb;
}

.gallery-card figcaption {
  padding: 16px 18px 18px;
  color: #003a70;
  font-weight: 700;
}

.gallery-placeholder {
  display: grid;
  place-items: center;
  padding: 28px;
  color: #6b7f95;
  text-align: center;
  border-style: dashed;
}

.detail-features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.detail-feature {
  padding: 24px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid #d9e3ef;
}

.detail-feature strong {
  display: block;
  margin-bottom: 10px;
  color: #003a70;
  font-size: 1.05rem;
}

.detail-feature p {
  margin: 0;
  color: #53677d;
  line-height: 1.7;
}

.detail-cta {
  margin: 0 auto 80px;
  border-radius: 28px;
  padding: 42px;
  background: linear-gradient(135deg, #003a70 0%, #006fba 100%);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.detail-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.detail-cta p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.detail-cta .btn {
  flex: 0 0 auto;
}

@media (max-width: 900px) {
  .detail-hero-layout,
  .gallery-grid,
  .detail-features {
    grid-template-columns: 1fr;
  }

  .detail-hero {
    padding: 42px 0;
  }

  .detail-section {
    padding: 52px 0;
  }

  .detail-cta {
    margin-bottom: 52px;
    padding: 28px;
    align-items: flex-start;
    flex-direction: column;
  }
}