/* 相册集页面样式 —— 移植自 anzhiyu 主题，适配 Butterfly */

/* 处理单页背景与容器 —— 仿 essay_page.css 用 :has() 选择器 */
body:has(#album) {
  background: var(--anzhiyu-background) !important;
}
body:has(#album) #web_bg {
  display: none !important;
}
#page:has(#album) {
  border: 0;
  box-shadow: none !important;
  padding: 0 !important;
  background: transparent !important;
  margin-top: 0 !important;
}
#page:has(#album) .page-title {
  display: none;
}
#web_bg ~ .page:has(#album) {
  background: var(--anzhiyu-background);
}

/* 变量定义 */
:root {
  --album-background-dark: #2d3548;
  --album-text-light: rgba(255, 255, 255, 0.6);
  --album-text-lighter: rgba(255, 255, 255, 0.95);
  --album-spacing-s: 8px;
  --album-spacing-m: 16px;
  --album-spacing-l: 24px;
  --album-spacing-xl: 32px;
  --album-spacing-xxl: 64px;
}

#album {
  width: 100%;
  min-height: calc(100vh - 60px);
}

/* 顶部 banner —— 仿 anzhiyu author-content */
#album .album-banner {
  position: relative;
  width: 100%;
  min-height: 400px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
  border-radius: 24px;
  margin: 1rem 0 0;
}
#album .album-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0.25) 100%);
  z-index: 1;
}
#album .album-banner-inner {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 3rem;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
#album .album-banner-tips {
  font-size: 0.95rem;
  letter-spacing: 2px;
  opacity: 0.85;
  margin-bottom: var(--album-spacing-m);
  text-transform: uppercase;
}
#album .album-banner-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 var(--album-spacing-s);
  text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
  line-height: 1.3;
}
#album .album-banner-sub {
  font-size: 1rem;
  opacity: 0.8;
  line-height: 1.6;
}
/* banner 按钮 —— 磨砂质感 */
#album .album-banner-btn-group {
  position: absolute;
  bottom: 1.5rem;
  right: 2rem;
  z-index: 3;
}
#album .album-banner-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  color: #fff;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
  box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.2);
}
#album .album-banner-btn:hover {
  background: #fff;
  color: #000;
}
#album .album-banner-btn i {
  font-size: 1.2rem;
}

/* 卡片网格 */
#album .card-album {
  width: 100%;
  max-width: 1400px;
  margin: var(--album-spacing-xxl) auto 0;
  padding: 0 var(--album-spacing-l);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  box-sizing: border-box;
}
#album .card-album .album-content-nocover {
  width: calc(100% / 4 - 40px);
}

#album .card-album .card {
  list-style: none;
  position: relative;
  display: flex;
  width: calc(100% / 4 - 10px);
  padding: 10px;
  margin: 0 0 var(--album-spacing-l);
  cursor: pointer;
  border-radius: var(--album-spacing-l);
  overflow: hidden;
}

/* 卡片封面 */
#album .card_cover {
  filter: brightness(0.75) saturate(1.2) contrast(0.85);
  transform-origin: center;
  transform: scale(1) translateZ(0);
  transition: filter 200ms linear, transform 200ms linear;
  height: 550px;
  width: 100%;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--album-spacing-l);
  display: block;
}

#album .card:hover .card_cover {
  transform: scale(1.05) translateZ(0);
  filter: brightness(0.9) saturate(1.2) contrast(1);
}

/* 磨砂质感核心：只有鼠标真正悬停在某张卡片上时，其他卡片才被模糊化 */
#album .card-album:has(.card:hover) > .card:not(:hover) .card_cover {
  filter: brightness(0.5) saturate(0.9) contrast(1.2) blur(20px);
}

/* 卡片文字内容 */
#album .card__content {
  left: 0;
  padding: var(--album-spacing-l);
  position: absolute;
  top: 0;
  z-index: 2;
  pointer-events: none;
}
#album .card__category {
  color: var(--album-text-light);
  font-size: 0.9rem;
  margin: 0 0 var(--album-spacing-s);
  text-transform: uppercase;
  letter-spacing: 1px;
}
#album .card__heading {
  color: var(--album-text-lighter);
  font-size: 1.7rem;
  text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.4);
  line-height: 1.4;
  margin: 0;
  font-weight: 600;
}

/* 隐藏的 fancybox 触发链接 */
#album .album-fancybox {
  display: none !important;
}

/* 响应式 */
@media (min-width: 1024px) {
  #album img.card_cover {
    height: 600px;
  }
}
@media (max-width: 960px) {
  #album .card-album .card,
  #album .card-album .album-content-nocover {
    width: calc(100% / 2 - 40px);
  }
}
@media (max-width: 768px) {
  #album .card-album {
    margin-top: 10px;
  }
  #album .card-album .card {
    padding: 10px 0;
  }
  #album .album-banner {
    min-height: 280px;
    border-radius: 16px;
  }
  #album .album-banner-inner {
    padding: 1.5rem;
  }
  #album .album-banner-title {
    font-size: 1.8rem;
  }
  #album .album-banner-btn-group {
    bottom: 1rem;
    right: 1rem;
  }
  #album .album-banner-btn {
    height: 34px;
    padding: 0 16px;
    font-size: 0.85rem;
  }
}
@media (max-width: 540px) {
  #album .card-album .card,
  #album .card-album .album-content-nocover {
    width: 100%;
  }
}

/* 深色模式适配 */
[data-theme="dark"] #album .album-banner::before {
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.65) 0%, rgba(0, 0, 0, 0.45) 100%);
}
[data-theme="dark"] #album .album-detail-item {
  background: var(--card-bg, #2c2c2c);
}

/* 相册详情页样式 */
#album .album-detail {
  display: none;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}
#album .album-detail-header {
  margin-bottom: 2rem;
}
#album .album-detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--font-color, #333);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  transition: color 0.3s;
}
#album .album-detail-back:hover {
  color: var(--theme-color, #425aef);
}
#album .album-detail-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}
#album .album-detail-desc {
  font-size: 1rem;
  color: var(--font-color, #666);
  opacity: 0.8;
  margin: 0;
}
#album .album-detail-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
#album .album-detail-item {
  background: var(--card-bg, #fff);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
#album .album-detail-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  color: var(--font-color, #999);
}
#album .album-detail-content {
  font-size: 1rem;
  margin: 0 0 1rem;
  color: var(--font-color, #333);
}
#album .album-detail-photos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
#album .album-detail-photo-wrap {
  display: block;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
}
#album .album-detail-photo {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s;
}
#album .album-detail-photo-wrap:hover .album-detail-photo {
  transform: scale(1.05);
}