/* V14: research partnership banner and PDRN industrialization section */
.research-partnership {
  padding: clamp(54px, 6vw, 88px) 0;
  background:
    radial-gradient(circle at 12% 20%, rgba(185, 138, 61, .09), transparent 28%),
    linear-gradient(145deg, rgba(250, 250, 249, .98), rgba(232, 236, 238, .95));
  border-bottom: 1px solid rgba(31, 49, 62, .08);
}

.partnership-frame {
  padding: clamp(10px, 1.4vw, 18px);
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(255, 255, 255, .96);
  box-shadow: 0 28px 72px rgba(27, 43, 54, .12);
}

.partnership-frame img {
  width: 100%;
  height: auto;
}

.industry-chain {
  min-height: 940px;
  padding: clamp(92px, 8vw, 126px) 0 clamp(105px, 9vw, 145px);
  color: #fff;
  background: #202b32 url('./assets/pdrn-industry-background.jpg') center 34% / cover no-repeat;
  isolation: isolate;
}

.industry-chain-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(13, 23, 30, .84) 0%, rgba(17, 28, 35, .69) 42%, rgba(13, 22, 28, .88) 100%),
    linear-gradient(90deg, rgba(18, 30, 38, .34), rgba(185, 138, 61, .08));
}

.industry-chain-inner {
  position: relative;
  z-index: 1;
}

.industry-chain-copy {
  max-width: 900px;
  margin: 0 auto 62px;
  text-align: center;
}

.industry-chain-copy > span {
  color: #e9d09f;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .28em;
}

.industry-chain-copy h2 {
  margin: 18px 0 24px;
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: clamp(38px, 4.5vw, 62px);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -.035em;
}

.industry-chain-copy p {
  max-width: 860px;
  margin: 0 auto;
  color: rgba(255, 255, 255, .72);
  font-size: 16px;
  line-height: 2;
}

.industry-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(15px, 1.7vw, 24px);
  align-items: start;
  perspective: 1400px;
}

.industry-card {
  position: relative;
  margin: 0;
  padding: 10px 10px 0;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, .98), rgba(229, 230, 228, .96));
  border: 1px solid rgba(255, 255, 255, .88);
  box-shadow: 0 28px 56px rgba(4, 11, 16, .35), inset 0 1px 0 rgba(255, 255, 255, .9);
  transform: rotateY(-2deg) translateY(0);
  transition: transform .42s ease, box-shadow .42s ease;
}

.industry-card:nth-child(even) {
  transform: rotateY(2deg) translateY(18px);
}

.industry-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(125deg, rgba(255,255,255,.2), transparent 33%, rgba(185,138,61,.07));
  z-index: 1;
}

.industry-card img {
  width: 100%;
  aspect-ratio: 374 / 552;
  object-fit: cover;
  object-position: top;
}

.industry-card figcaption {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 8px;
  color: #554937;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
}

.industry-card figcaption span {
  color: #9b8769;
  font-size: 8px;
  font-weight: 500;
  letter-spacing: .08em;
}

.industry-card:hover,
.industry-card:focus-within {
  transform: rotateY(0) translateY(-10px);
  box-shadow: 0 38px 72px rgba(4, 11, 16, .46), 0 0 0 1px rgba(233, 208, 159, .26);
}

#research-partnership,
#industry-chain,
#news {
  scroll-margin-top: 82px;
}

@media (max-width: 980px) {
  .industry-chain {
    min-height: 0;
    background-position: center top;
  }

  .industry-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .industry-card,
  .industry-card:nth-child(even) {
    transform: none;
  }
}

@media (max-width: 620px) {
  .research-partnership {
    padding: 42px 0;
  }

  .partnership-frame {
    width: calc(100% - 24px);
    padding: 6px;
  }

  .industry-chain {
    padding: 76px 0 84px;
  }

  .industry-chain-copy {
    margin-bottom: 42px;
    text-align: left;
  }

  .industry-chain-copy h2 {
    font-size: 34px;
  }

  .industry-chain-copy p {
    font-size: 14px;
    line-height: 1.9;
  }

  .industry-card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .industry-card {
    width: min(100%, 390px);
    margin-inline: auto;
  }

  #research-partnership,
  #industry-chain,
  #news {
    scroll-margin-top: 70px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .industry-card {
    transition: none;
  }
}