/* AI 影像序章：独立于导出的主样式，重新导出应用时保留本文件。 */
.ai-film-section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
  overflow: hidden;
  padding: clamp(72px, 9vw, 132px) max(6vw, 24px);
  background:
    radial-gradient(circle at 90% 12%, rgba(212, 156, 78, 0.2), transparent 31%),
    linear-gradient(135deg, #0b272b 0%, #12383c 58%, #0d2e32 100%);
  color: #f4ecdc;
}

.ai-film-section::before {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(238, 216, 176, 0.16);
  content: "";
  pointer-events: none;
}

.ai-film-copy,
.ai-film-stage {
  position: relative;
  z-index: 1;
}

.ai-film-copy .section-no {
  margin: 0 0 20px;
  color: #dca85f;
  font-size: 12px;
  letter-spacing: 0.22em;
}

.ai-film-copy h2 {
  max-width: 620px;
  margin: 0 0 22px;
  font-family: STSong, SimSun, serif;
  font-size: clamp(40px, 5.4vw, 76px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.ai-film-copy > p:not(.section-no) {
  max-width: 580px;
  margin: 0;
  color: rgba(244, 236, 220, 0.74);
  font-size: 15px;
  line-height: 1.9;
}

.ai-film-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0;
}

.ai-film-facts span {
  padding: 8px 12px;
  border: 1px solid rgba(238, 216, 176, 0.25);
  border-radius: 999px;
  color: #ead6b2;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.ai-film-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ai-film-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(238, 216, 176, 0.36);
  border-radius: 3px;
  color: #f4ecdc;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease;
}

.ai-film-links a:hover,
.ai-film-links a:focus-visible {
  background: #f0dfbe;
  color: #12383c;
}

.ai-film-stage {
  margin: 0;
}

.ai-film-stage video,
.ai-film-placeholder {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(238, 216, 176, 0.27);
  border-radius: 5px;
  background: #071d20;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.3);
  object-fit: cover;
}

.ai-film-placeholder {
  position: relative;
  overflow: hidden;
}

.ai-film-placeholder::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 27, 30, 0.9), rgba(5, 27, 30, 0.22) 72%);
  content: "";
}

.ai-film-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}

.ai-film-placeholder > div {
  position: absolute;
  z-index: 1;
  bottom: clamp(20px, 4vw, 42px);
  left: clamp(20px, 4vw, 42px);
  display: grid;
  max-width: min(72%, 450px);
  gap: 9px;
}

.ai-film-placeholder span {
  color: #dca85f;
  font-size: 10px;
  letter-spacing: 0.2em;
}

.ai-film-placeholder strong {
  color: #fff7e7;
  font-family: STSong, SimSun, serif;
  font-size: clamp(20px, 3vw, 34px);
  font-weight: 400;
  line-height: 1.35;
}

.ai-film-placeholder small {
  color: rgba(255, 247, 231, 0.66);
  font-size: 11px;
  line-height: 1.6;
}

.ai-film-stage > figcaption {
  margin: 13px 0 0;
  color: rgba(244, 236, 220, 0.58);
  font-size: 11px;
  line-height: 1.7;
}

@supports not (aspect-ratio: 16 / 9) {
  .ai-film-stage video,
  .ai-film-placeholder {
    min-height: 360px;
  }
}

@media (max-width: 900px) {
  .ai-film-section {
    grid-template-columns: 1fr;
  }

  .ai-film-copy h2 {
    max-width: 720px;
  }
}

@media (max-width: 560px) {
  .ai-film-section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .ai-film-stage video,
  .ai-film-placeholder {
    min-height: 0;
  }

  .ai-film-placeholder > div {
    max-width: calc(100% - 40px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-film-links a {
    transition: none;
  }
}

@media (forced-colors: active) {
  .ai-film-section,
  .ai-film-stage video,
  .ai-film-placeholder {
    border: 1px solid CanvasText;
  }
}