.links-content {
  margin-top: 1rem
}

.link-navigation::after {
  content: " ";
  display: block;
  clear: both
}

.card {
  width: 240px; /* 基础宽度 */
  font-size: 1rem;
  padding: 0;
  border-radius: 4px;
  transition-duration: .3s;
  margin-bottom: 1rem;
  display: block;
  float: left;
  margin-left: 16px;
  box-shadow: 0 2px 6px 0 rgba(0,0,0,.12);
  background: #f5f5f5;
  overflow: hidden;
}

.darkmode--activated .card {
  background: rgba(25,25,25,0.8);
}

.card-content {
  padding: 10px;
}

.card-header {
  margin-bottom: 8px;
}

.card-description {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.4;
  height: 40px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.darkmode--activated .card-description {
  color: #a0a0a0;
}

/* 响应式布局 */
@media(max-width:567px) {
  .card {
    margin-left: 16px;
    width: calc((100% - 16px)/2); /* 移动端每行2张 */
  }

  .card:nth-child(2n+1) {
    margin-left: 0
  }

  .card:not(:nth-child(2n+1)) {
    margin-left: 16px
  }
}

@media(min-width:567px) {
  .card {
    margin-left: 16px;
    width: calc((100% - 32px)/3); /* 小屏幕每行3张 */
  }

  .card:nth-child(3n+1) {
    margin-left: 0
  }

  .card:not(:nth-child(3n+1)) {
    margin-left: 16px
  }
}

@media(min-width:768px) {
  .card {
    margin-left: 16px;
    width: calc((100% - 48px)/4); /* 中屏幕每行4张 */
  }

  .card:nth-child(4n+1) {
    margin-left: 0
  }

  .card:not(:nth-child(4n+1)) {
    margin-left: 16px
  }
}

@media(min-width:1200px) {
  .card {
    margin-left: 16px;
    width: calc((100% - 64px)/4); /* 大屏幕每行4张 */
  }

  .card:nth-child(4n+1) {
    margin-left: 0
  }

  .card:not(:nth-child(4n+1)) {
    margin-left: 16px
  }
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px 0 rgba(0,0,0,.15),0 0 8px 0 rgba(0,0,0,.06);
  transition-duration: .4s;
}

.card .thumb {
  width: 100%;
  height: 0;
  padding-bottom: 100%;
  background-size: cover !important;
  background-position: center center !important;
}

.posts-expand .post-body img {
  margin: 0;
  padding: 0;
  border: 0
}

.card .card-header a {
  font-style: normal;
  color: #2b5ebc;
  font-weight: 700;
  text-decoration: none;
  border: 0;
  font-size: 0.95rem;
}

.darkmode--activated .card .card-header a {
  color: #6c9ef8;
}

.card .card-header a:hover {
  color: #7accef;
  text-decoration: none;
  border: 0;
}

.darkmode--activated .card .card-header a:hover {
  color: #2f4da6;
}