/* =========================================================
   Research / Projects Collection Pages
   ========================================================= */

.collection-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 10px 60px;
}

.collection-header {
  margin-bottom: 36px;
}

.collection-header h1 {
  margin-bottom: 10px;
  font-size: 42px;
  font-weight: 700;
}

.collection-header p {
  margin: 0;
  font-size: 15px;
  opacity: 0.65;
}

.collection-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.collection-card {
  overflow: hidden;
  border-radius: 18px;

  background: rgba(255, 255, 255, 0.72);

  border: 1px solid rgba(255, 255, 255, 0.8);

  box-shadow:
    0 12px 40px rgba(40, 50, 80, 0.08);

  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.collection-card:hover {
  transform: translateY(-5px);

  box-shadow:
    0 20px 50px rgba(40, 50, 80, 0.13);
}

.collection-card-cover {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.collection-card-cover img {
  width: 100%;
  height: 100%;

  object-fit: cover;

  display: block;

  transition: transform 0.35s ease;
}

.collection-card:hover .collection-card-cover img {
  transform: scale(1.03);
}

.collection-card-body {
  padding: 24px 26px 26px;
}

.collection-card-meta {
  margin-bottom: 10px;

  font-size: 12px;
  font-weight: 600;

  letter-spacing: 0.08em;
  text-transform: uppercase;

  opacity: 0.55;
}

.collection-card-title {
  margin: 0 0 12px;

  font-size: 25px;
  line-height: 1.3;
}

.collection-card-title a {
  color: inherit;
  text-decoration: none;
}

.collection-card-title a:hover {
  color: var(--anzhiyu-main);
}

.collection-card-description {
  margin: 0 0 18px;

  font-size: 14px;
  line-height: 1.8;

  opacity: 0.72;
}

.collection-card-year {
  display: inline-block;

  margin-bottom: 18px;

  font-size: 13px;
  opacity: 0.55;
}

.collection-card-link {
  display: inline-flex;

  align-items: center;
  gap: 7px;

  font-size: 14px;
  font-weight: 600;

  text-decoration: none;
}

.collection-card-link i {
  font-size: 11px;
}

/* =========================================================
   Blog column cards (the /blog/ station)
   ========================================================= */

.collection-column-card {
  color: inherit;
  text-decoration: none;
}

.collection-column-card .collection-card-title {
  color: inherit;
  transition: color 0.2s ease;
}

.collection-column-card:hover .collection-card-title {
  color: var(--anzhiyu-main);
}

/* =========================================================
   Horizontal article cards (blog category pages)
   ========================================================= */

.post-row-list {
  max-width: 1200px;
  margin: 0 auto;
}

.post-row-card {
  display: block;
  padding: 22px 26px;
  margin-bottom: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 10px 30px rgba(40, 50, 80, 0.07);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.post-row-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(40, 50, 80, 0.12);
}

.post-row-title {
  margin: 0 0 12px;
  font-size: 21px;
  line-height: 1.4;
}

.post-row-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.post-row-card:hover .post-row-title a {
  color: var(--anzhiyu-main);
}

.post-row-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 12px;
  font-size: 13px;
  opacity: 0.72;
}

.post-row-date,
.post-row-views {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.post-row-tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
}

.post-row-tag {
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(120, 130, 155, 0.1);
  color: inherit;
  font-size: 12px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.post-row-tag:hover {
  background: rgba(120, 130, 155, 0.2);
  color: var(--anzhiyu-main);
}

.post-row-excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  opacity: 0.72;
}

@media (max-width: 768px) {

  .collection-page {
    padding:
      10px
      8px
      50px;
  }

  .collection-header h1 {
    font-size: 34px;
  }

  .collection-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .collection-card-cover {
    height: 190px;
  }

  .collection-card-body {
    padding: 20px;
  }

  .collection-card-title {
    font-size: 22px;
  }

  .post-row-card {
    padding: 18px 20px;
  }

  .post-row-title {
    font-size: 18px;
  }
}