/* ============================================================
   한솔그룹 페이지 전용
   ============================================================ */

/* SEC 1: 그룹 소개 */
.hg-intro {
  padding: 120px 0;
  background: #fff;
}

.hg-intro__inner {
  max-width: var(--wd-container-content);
  margin: 0 auto;
  padding: 0 var(--wd-container-padding);
  text-align: center;
}

.hg-intro__image {
  margin-top: 56px;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #d6ecf8 0%, #a8d4ef 50%, #7bbde6 100%);
  overflow: hidden;
  clip-path: inset(0 50%);
  transition: clip-path 0s;
  will-change: clip-path;
}

.hg-intro__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hg-intro__image.is-expanding {
  transition: none;
}


/* SEC 2: 계열사 리스트 — 다크 테마 */
.hg-affiliates {
  padding: 120px 0;
  background: var(--wd-surface-dark);
}

.hg-affiliates__inner {
  max-width: var(--wd-container-content);
  margin: 0 auto;
  padding: 0 var(--wd-container-padding);
}

/* 계열사 아이템 */
.hg-aff {
  border-bottom: 1px solid var(--wd-border-on-dark);
  cursor: default;
  padding: 36px 0;
}

.hg-aff:first-child {
  border-top: 1px solid var(--wd-border-on-dark);
}

.hg-aff__top {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  align-items: center;
  gap: 40px;
}

.hg-aff__name {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  word-break: keep-all;
}

.hg-aff__desc {
  font-size: 17px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  word-break: keep-all;
  transition: color 0.3s;
}

/* + 아이콘 */
.hg-aff__icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: rgba(255,255,255,0.3);
  flex-shrink: 0;
  transition: color 0.3s, transform 0.3s;
}

/* hover 이미지 — 기본 숨김 */
.hg-aff__image {
  width: 240px;
  height: 160px;
  margin-left: auto;
  margin-top: 0;
  overflow: hidden;
  background: rgba(255,255,255,0.08);
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease, margin-top 0.4s ease;
}

.hg-aff__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* hover 상태 */
.hg-aff:hover .hg-aff__desc {
  color: rgba(255,255,255,0.8);
}

.hg-aff:hover .hg-aff__image {
  max-height: 160px;
  opacity: 1;
  margin-top: 24px;
}

.hg-aff:hover .hg-aff__icon {
  color: rgba(255,255,255,0.7);
  transform: rotate(45deg);
}

/* 한솔에너지온 강조 */
.hg-aff--highlight .hg-aff__name {
  color: #fff;
}


/* ── Responsive ── */
@media (max-width: 1080px) {
  .hg-intro { padding: 80px 0; }
  .hg-affiliates { padding: 80px 0; }

  .hg-aff { padding: 28px 0; }

  .hg-aff__top {
    grid-template-columns: 160px 1fr auto;
    gap: 28px;
  }

  .hg-aff__name { font-size: 20px; }

  .hg-aff__image { width: 180px; height: 120px; }
  .hg-aff:hover .hg-aff__image { max-height: 120px; }
}

@media (max-width: 640px) {
  .hg-intro { padding: 56px 0; }
  .hg-intro__image { margin-top: 40px; border-radius: 12px; }
  .hg-affiliates { padding: 56px 0; }

  /* 카드 세로 배치 */
  .hg-aff {
    display: flex;
    flex-direction: column;
    padding: 32px 0;
  }

  /* 이미지 상시 노출, 최상단 */
  .hg-aff__image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    max-height: none;
    opacity: 1;
    margin: 0 0 20px;
    order: -1;
  }

  .hg-aff__top {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .hg-aff__name { font-size: 20px; }
  .hg-aff__desc { font-size: 14px; margin-top: 10px; color: rgba(255,255,255,0.6); }

  .hg-aff__icon {
    align-self: flex-end;
    margin-top: 16px;
  }

  /* 모바일: hover 인터랙션 제거 */
  .hg-aff,
  .hg-aff__image,
  .hg-aff__desc,
  .hg-aff__icon {
    transition: none !important;
  }
  .hg-aff:hover .hg-aff__image {
    max-height: none;
    opacity: 1;
    margin-top: 0;
  }
  .hg-aff:hover .hg-aff__icon {
    transform: none;
  }
}