.asset-page-header {
  height: 82px;
  padding: 0 max(22px, 5vw);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.asset-page-header > a:last-child { font-size: 12px; font-weight: 700; }
.asset-page-main {
  width: min(1180px, calc(100% - 40px));
  margin: 70px auto;
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 55px;
  align-items: start;
}
.asset-page-preview { min-height: 570px; border-radius: 18px; overflow: hidden; display: grid; place-items: center; }
.asset-page-preview img { width: 100%; height: 100%; object-fit: contain; }
.asset-page-content { padding-top: 20px; }
.asset-page-content h1 { font-size: clamp(48px, 6vw, 72px); line-height: .98; }
.asset-page-author { margin: 15px 0 28px; color: var(--muted); font-size: 12px; }
.asset-page-description { color: var(--muted); font-size: 14px; line-height: 1.8; }
.asset-page-content .modal-tags { margin-top: 22px; }
.asset-page-format { margin-top: 35px; padding: 16px; border: 1px solid var(--line); border-radius: 10px; display: grid; gap: 4px; font-size: 12px; }
.asset-page-format span { color: var(--muted); font-size: 9px; }
.asset-page-download { width: 100%; margin-top: 12px; padding: 15px; border: 0; border-radius: 9px; display: flex; justify-content: space-between; background: var(--lime); cursor: pointer; font-weight: 800; }
.download-explainer { color: var(--muted); font-size: 9px; text-align: center; }
.asset-page-ad { width: min(970px, calc(100% - 40px)); min-height: 110px; margin: 20px auto 80px; }
.detail-download-gate { position: fixed; inset: 0; display: grid; place-items: center; z-index: 150; opacity: 0; visibility: hidden; transition: .2s; }
.detail-download-gate.open { opacity: 1; visibility: visible; }
.detail-download-gate .download-gate-panel { position: relative; z-index: 1; }
.not-found-page {
  width: min(900px, calc(100% - 40px));
  min-height: calc(100vh - 82px);
  margin: 0 auto;
  display: grid;
  place-items: center;
}
.not-found-card {
  width: 100%;
  padding: clamp(35px, 7vw, 80px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(30,30,28,.08);
}
.not-found-card h1 {
  margin: 0;
  font-size: clamp(52px, 8vw, 92px);
  line-height: .95;
}
.not-found-card > p:not(.eyebrow) {
  max-width: 560px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.not-found-actions {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.not-found-actions .asset-page-download {
  width: auto;
  min-width: 220px;
  text-decoration: none;
}
.secondary-link {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
}

@media (max-width: 760px) {
  .asset-page-header { height: 68px; padding: 0 18px; }
  .asset-page-header > a:last-child { display: none; }
  .asset-page-main { width: calc(100% - 28px); margin: 35px auto 60px; grid-template-columns: 1fr; gap: 35px; }
  .asset-page-preview { min-height: 330px; }
  .asset-page-content h1 { font-size: 46px; }
  .not-found-page { min-height: calc(100vh - 68px); }
}