/* About ページ専用スタイル */

html.about-html {
  overflow-x: hidden !important;
  overflow-y: auto !important;
}

.about-page {
  background: #fff !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  width: 100% !important;
  height: auto !important;
  min-height: 100vh;
}

/* ヘッダーを常に表示 */
.about-page .site-header {
  opacity: 1;
}

/* ロゴを左上に固定 */
.about-page .logo-wrapper {
  position: fixed;
  width: auto;
  height: auto;
  top: 1rem;
  left: 1rem;
  transform: none;
  background: transparent;
  opacity: 1;
}


/* About コンテンツ */
.about-content {
  padding: 120px 5vw 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.about-section {
  display: flex;
  gap: 6em;
  align-items: flex-start;
}

/* アーティスト画像 */
.artist-image {
  flex: 0 0 40%;
  max-width: 450px;
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 画像スライダー */
.image-slider {
  position: relative;
  width: 100%;
}

.slider-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: none;
  transition: opacity 0.5s ease;
}

.slider-img.active {
  display: block;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1rem;
}

.slider-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ccc;
  cursor: pointer;
  transition: background 0.3s ease;
}

.slider-dots .dot:hover {
  background: #888;
}

.slider-dots .dot.active {
  background: #333;
}

/* アーティスト名 */
.artist-name {
  margin-top: 1.5em;
  text-align: center;
  width: 100%;
}

.artist-name .name-ja {
  font-size: 1.4rem;
  font-weight: 600;
  color: #111;
  margin: 0 0 0.3em;
  letter-spacing: 0.2em;
}

.artist-name .name-en {
  font-size: 1rem;
  color: #555;
  margin: 0;
  letter-spacing: 0.1em;
}

/* プロフィール */
.profile {
  flex: 1;
  color: #111;
}

.profile h1 {
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 1.5em;
  letter-spacing: 0.1em;
}

.profile .birth {
  font-size: 1rem;
  color: #444;
  margin-bottom: 0.5em;
  line-height: 1.6;
}

.profile .degree {
  font-size: 1rem;
  color: #555;
  margin-bottom: 3em;
}

/* CV リスト */
.cv {
  margin-bottom: 3em;
}

.cv dl {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0.8em 2em;
}

.cv dt {
  font-weight: bold;
  color: #333;
}

.cv dd {
  margin: 0;
  color: #444;
  line-height: 1.6;
}

.cv dd a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.cv dd a:hover {
  color: #c00;
}

/* Current セクション */
.profile .current {
  margin-top: 3em;
  padding-top: 2em;
  border-top: 1px solid #ddd;
}

.profile .current h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1em;
  letter-spacing: 0.1em;
}

.profile .current ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.profile .current li {
  padding: 0.5em 0;
  color: #444;
  line-height: 1.6;
}

.profile .current li a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.profile .current li a:hover {
  color: #c00;
}

/* 右側スクロールナビ */
.side-scroll-nav {
  position: fixed;
  right: 3rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  z-index: 5000;
}

.arrows-container-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.nav-arrow-vertical {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 1;
  animation: fadeInOut 3s ease-in-out infinite;
}

.nav-arrow-vertical .arrow {
  width: 20px;
  height: 20px;
  border-right: 3px solid #333;
  border-bottom: 3px solid #333;
  filter: drop-shadow(0 0 8px #fff) drop-shadow(0 0 15px rgba(255,255,255,0.8));
}

/* 上矢印 */
.nav-up .arrow {
  transform: rotate(-135deg);
  animation: arrowMoveUp 1.5s ease-in-out infinite;
}

.nav-up:hover .arrow {
  animation: none;
  transform: rotate(-135deg) translate(3px, 3px);
}

/* 下矢印 */
.nav-down .arrow {
  transform: rotate(45deg);
  animation: arrowMoveDown 1.5s ease-in-out infinite;
}

.nav-down:hover .arrow {
  animation: none;
  transform: rotate(45deg) translate(3px, 3px);
}

/* SCROLLテキスト（縦書き） */
.hint-text-vertical {
  font-size: 0.7rem;
  font-weight: bold;
  color: #333;
  letter-spacing: 0.15em;
  text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px rgba(255,255,255,0.8);
  writing-mode: vertical-rl;
  animation: fadeInOut 3s ease-in-out infinite;
}

@keyframes arrowMoveUp {
  0%, 100% {
    transform: rotate(-135deg) translate(0, 0);
    opacity: 1;
  }
  50% {
    transform: rotate(-135deg) translate(3px, 3px);
    opacity: 0.5;
  }
}

@keyframes arrowMoveDown {
  0%, 100% {
    transform: rotate(45deg) translate(0, 0);
    opacity: 1;
  }
  50% {
    transform: rotate(45deg) translate(3px, 3px);
    opacity: 0.5;
  }
}

/* レスポンシブ */
@media (max-width: 900px) {
  .about-section {
    flex-direction: column;
    gap: 3em;
  }

  .artist-image {
    flex: none;
    max-width: 100%;
    width: 100%;
    position: relative;
    top: 0;
  }

  .cv dl {
    grid-template-columns: 60px 1fr;
    gap: 0.6em 1em;
  }

  .side-scroll-nav {
    right: 1rem;
  }
}