/* ============================================================
   BUILITE 产品媒体查看器（图片 + 视频）— 独立样式
   -----------------------------------------------------------------
   配套短码：[builite_product_media]
   字段：产品字段 bui_media_video_url（视频链接） + bui_media_video_poster（封面）
   风格对齐 BUILITE：紫 #4A148C · 圆角16 · Inter · hover 放大
   已加 !important 防止主题覆盖；图片绝对定位铺满避免上方空白
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --ink: #111111;
  --muted: #888888;
  --line: #F0F0F2;
  --accent: #4A148C;
  --accent-soft: #F5F0FA;
  --bg-1: #F7F7F9;
  --white: #FFFFFF;
  --navy: #0B1424;
  --radius: 16px;
  --shadow: 0 20px 50px rgba(17, 17, 17, 0.06);
  --shadow-sm: 0 6px 24px rgba(17, 17, 17, 0.05);
}

/* ===== 容器 ===== */
.builite-media-viewer {
  position: relative;
  width: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
}

/* ===== 主展示区 ===== */
.builite-media-viewer__stage {
  position: relative;
  aspect-ratio: 1 / 1 !important;  /* 视频/图片外框统一正方形 */
  border-radius: var(--radius) !important;
  overflow: hidden;
  background: var(--bg-1) !important;   /* 图片态浅灰底，切换时不闪深色 */
  box-shadow: var(--shadow-sm);
}
.builite-media-viewer__stage.is-video {
  background: var(--navy) !important;   /* 视频态深色底 */
}

/* 主图 */
.builite-media-viewer__main {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  cursor: zoom-in;
  transition: opacity 0.4s ease;
}
.builite-media-viewer__main.is-switching {
  opacity: 0;
}

/* 主图播放按钮（仅视频项由 JS 显示，悬浮无任何变化） */
.builite-media-viewer__play {
  position: absolute;
  inset: 0;
  display: none;              /* 默认隐藏，由 JS setPlayButton 控制 */
  align-items: center;
  justify-content: center;
  background: none;           /* 无遮罩，直接显示封面图 */
  border: none;
  cursor: pointer;
  z-index: 4;
}
.builite-media-viewer__play span {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  transition: none;           /* 悬浮不变色不变大 */
}
.builite-media-viewer__play span svg {
  margin-left: 2px;   /* 让播放三角视觉居中 */
}
.builite-media-viewer__play span {
  transition: none;
}

/* 视频播放容器（点击播放后替换主图） */
.builite-media-viewer__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: var(--navy) !important;   /* 黑底 */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.builite-media-viewer__video.is-active {
  opacity: 1;
  visibility: visible;
}
.builite-media-viewer__video iframe,
.builite-media-viewer__video video {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  border: none;
  object-fit: contain;             /* 视频按原比例显示，其余留黑 */
  background: var(--navy) !important;
}

/* 主区左右切换箭头（真圆 + 图标清晰） */
.builite-media-viewer__nav {
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 46px !important;
  height: 46px !important;
  min-width: 0 !important;
  box-sizing: border-box;
  border-radius: 50% !important;
  border: none !important;
  background: rgba(11, 20, 36, 0.4) !important;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #FFFFFF !important;
  cursor: pointer;
  display: flex !important;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  padding: 0 !important;
  margin: 0 !important;
  transition: all 0.3s ease;
}
.builite-media-viewer__nav svg {
  width: 22px;
  height: 22px;
  display: block;
  color: #FFFFFF;
}
.builite-media-viewer__nav:hover {
  background: var(--accent) !important;
}
.builite-media-viewer__nav--prev { left: 14px; }
.builite-media-viewer__nav--next { right: 14px; }
.builite-media-viewer__nav:disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* 右上角全屏查看按钮 */
.builite-media-viewer__zoom {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  width: 42px !important;
  height: 42px !important;
  min-width: 0 !important;
  box-sizing: border-box;
  border-radius: 50% !important;
  border: none !important;
  background: rgba(11, 20, 36, 0.4) !important;
  color: #FFFFFF !important;
  cursor: pointer;
  display: flex !important;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
  margin: 0 !important;
  transition: all 0.3s ease;
}
.builite-media-viewer__zoom svg {
  width: 18px;
  height: 18px;
  display: block;
  color: #FFFFFF;
}
.builite-media-viewer__zoom:hover {
  background: var(--accent) !important;
}

/* ===== 缩略图横向滚动条 ===== */
.builite-media-viewer__thumbs-wrap {
  position: relative;
  margin: 12px 14px 0;   /* 左右留出箭头空间 */
}

.builite-media-viewer__thumbs {
  display: flex !important;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 10px;
  padding: 2px 0;
  scroll-behavior: smooth;
  scrollbar-width: none;              /* Firefox 隐藏滚动条 */
  -ms-overflow-style: none;           /* IE */
}
.builite-media-viewer__thumbs::-webkit-scrollbar {
  display: none;                      /* Chrome/Safari 隐藏滚动条 */
}

.builite-media-viewer__thumb {
  position: relative;
  flex: 0 0 88px;
  width: 88px;
  height: 88px;
  aspect-ratio: 1 / 1;
  border-radius: 12px !important;
  overflow: hidden;
  border: 2px solid transparent !important;
  padding: 0;
  cursor: pointer;
  background: var(--bg-1);
  transition: all 0.35s ease;
}
.builite-media-viewer__thumb:hover {
  border-color: rgba(74, 20, 140, 0.4) !important;
  transform: translateY(-2px);
}
.builite-media-viewer__thumb.is-active {
  border-color: var(--accent) !important;
}
.builite-media-viewer__thumb img {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.builite-media-viewer__thumb:hover img {
  transform: scale(1.08);
}

/* 视频缩略图上的小播放角标 */
.builite-media-viewer__thumb-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(11, 20, 36, 0.35);
}
.builite-media-viewer__thumb-badge span {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.builite-media-viewer__thumb-badge span svg {
  margin-left: 2px;   /* 让播放三角视觉居中 */
}

/* 缩略图左右箭头（浅色底 + 白色箭头） */
.builite-media-viewer__thumbs-nav {
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 30px;
  height: 44px;
  border: none !important;
  background: rgba(17, 17, 17, 0.45) !important;
  color: #FFFFFF !important;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 8px !important;
  transition: background 0.3s ease;
}
.builite-media-viewer__thumbs-nav svg {
  width: 18px;
  height: 18px;
  display: block;
  color: #FFFFFF !important;
}
.builite-media-viewer__thumbs-nav:hover {
  background: var(--accent) !important;
}
.builite-media-viewer__thumbs-nav--prev { left: 6px; }
.builite-media-viewer__thumbs-nav--next { right: 6px; }

/* ===== 大图灯箱 ===== */
.builite-media-viewer__lightbox {
  position: fixed;
  inset: 0;
  z-index: 230;
  background: rgba(11, 20, 36, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.builite-media-viewer__lightbox.is-open {
  opacity: 1;
  visibility: visible;
}
.builite-media-viewer__lightbox img {
  max-width: min(88vw, 1080px);
  max-height: 76vh;
  border-radius: 12px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.5);
}
.builite-media-viewer__lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px !important;
  height: 44px !important;
  min-width: 0 !important;
  box-sizing: border-box;
  border-radius: 50% !important;      /* 确保正圆 */
  border: none !important;
  background: rgba(11, 20, 36, 0.8) !important;   /* 浅黑底 */
  color: #FFFFFF !important;
  cursor: pointer;
  display: flex !important;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
  margin: 0 !important;
  transition: background 0.3s ease;
}
.builite-media-viewer__lightbox-close svg {
  width: 18px;
  height: 18px;
  display: block;
  color: #FFFFFF !important;
}
.builite-media-viewer__lightbox-close:hover {
  background: var(--accent) !important;
}

/* ===== 响应式 ===== */
@media (max-width: 980px) {
  .builite-media-viewer__thumbs {
    gap: 8px;
  }
}

@media (max-width: 640px) {
  .builite-media-viewer__thumbs {
    gap: 8px;
    padding: 2px 8px;
  }
  .builite-media-viewer__thumb {
    flex: 0 0 72px;
    width: 72px;
    height: 72px;
  }
  .builite-media-viewer__play span {
    width: 60px;
    height: 60px;
  }
  .builite-media-viewer__nav {
    width: 36px;
    height: 36px;
  }
  .builite-media-viewer__thumbs-nav {
    display: none;   /* 手机上缩略图可滑动，隐藏箭头 */
  }
}