/* 文章列表/顶栏封面：统一横向画幅；正文内图片勿加 .fsmag-cover-frame */

.fsmag-cover-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #1a1a1a;
  contain: layout style;
}

.fsmag-cover-frame.fsmag-cover-ratio--3-2 {
  aspect-ratio: 3 / 2;
}

.fsmag-cover-blur {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: none;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: blur(28px);
  transform: scale(1.12);
  opacity: 0.92;
}

.fsmag-cover-frame.fsmag-cover--portrait-fill .fsmag-cover-blur {
  display: block;
}

.fsmag-cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
  z-index: 1;
}

.fsmag-cover-frame.fsmag-cover--portrait-fill .fsmag-cover-img {
  object-fit: contain;
  object-position: center center;
}

/* 首页 Hero 全幅底图：不固定 aspect-ratio，由外层块级高度决定 */
.fsmag-cover-frame.fsmag-cover-hero {
  aspect-ratio: unset;
  min-height: 100%;
  height: 100%;
  width: 100%;
}

/* 嵌入固定方形容器的小缩略图（最新列表、天涯卡片等） */
.fsmag-cover-frame.fsmag-cover-square {
  aspect-ratio: 1;
  width: 100%;
  height: 100%;
  min-height: 0;
}