/* ===== Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bgm-right-space: 10px;
  --bgm-inner-gap: 6px;
}




/* ===== Main ===== */
.room-main {
  padding: 16px 16px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== Storyboard Intro ===== */
.storyboard-room {
  max-width: 1100px;
  margin: 0 auto;
}

.storyboard-intro {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.storyboard-intro-main {
  flex: 0 0 260px;
  margin: 0;
  background-color: rgba(0, 0, 0, 0); /* 完全透明 */
}

.storyboard-intro-main img {
  display: block;
  width: 100%;
  height: auto;
}

.storyboard-intro-text {
  flex: 1;
}

.storyboard-intro-lead {
  margin: 0;
  font-size: 18px;
  line-height: 1.8;
}

/* ===== Storyboard Scene List ===== */
.storyboard-scene-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.storyboard-scene {
  display: flex;
  gap: 16px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.7);
  box-shadow: 0 0 14px rgba(0, 0, 0, 0.5);
}

.storyboard-scene-image {
  flex: 0 0 200px;
  margin: 0;
  border-radius: 10px;
  overflow: hidden;
  background: #020617;
}

.storyboard-scene-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.storyboard-scene-image img:hover {
  transform: scale(1.03);
  opacity: 0.95;
}

.storyboard-scene-text {
  flex: 1;
  font-size: 18px;
  line-height: 1.7;
}

.storyboard-scene-title {
  margin: 0 0 4px;
  font-weight: 600;
  color: #facc15;
}

/* SP レイアウト調整 */
@media (max-width: 720px) {
  .room-main {
    padding-inline: 10px;
  }

  .storyboard-intro {
    flex-direction: column;
    align-items: stretch;
  }

  .storyboard-intro-main {
    flex: none;
  }

  .storyboard-scene {
    flex-direction: column;
  }

  .storyboard-scene-image {
    flex: none;
  }
}