/**
 * 广场动态 · QQ 空间式信息流排版
 */

#pageTreehole.treehole-tab-square #postList.post-waterfall {
  background: var(--qq-bg);
  padding: 10px 0 16px;
}

#pageTreehole.treehole-tab-square .post-card--qq {
  margin: 0 12px 12px;
  padding: 14px 16px 0;
  background: var(--qq-card);
  border: 1px solid var(--qq-border-light);
  border-radius: var(--qq-radius);
  box-shadow: var(--qq-shadow);
  transform: none;
  transition: box-shadow 0.15s, border-color 0.15s;
}

#pageTreehole.treehole-tab-square .post-card--qq:hover {
  box-shadow: var(--qq-shadow-hover);
  background: var(--qq-card);
  border-color: var(--qq-border);
}

body.dark-theme #pageTreehole.treehole-tab-square #postList.post-waterfall {
  background: var(--qq-bg);
}

body.dark-theme #pageTreehole.treehole-tab-square .post-card--qq {
  background: var(--qq-card);
  border-color: var(--qq-border);
}

.qq-post-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.qq-post-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(61, 139, 122, 0.1);
}

.qq-post-avatar .anon-avatar-icon {
  font-size: 20px !important;
}

.qq-post-user {
  flex: 1;
  min-width: 0;
}

.qq-post-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--qq-text);
  line-height: 1.35;
  font-family: inherit;
}

body.dark-theme .qq-post-name { color: var(--qq-text); }

.qq-post-time {
  font-size: 12px;
  color: var(--qq-text-muted);
  margin-top: 3px;
}

.qq-post-tag {
  display: inline-block;
  margin-top: 4px;
  font-size: 11px;
  color: var(--qq-primary);
  background: rgba(61, 139, 122, 0.08);
  padding: 1px 8px;
  border-radius: 10px;
}

.qq-post-menu {
  border: none;
  background: none;
  color: #c8c8c8;
  font-size: 14px;
  line-height: 1;
  padding: 6px 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.qq-post-menu:hover { color: #999; }

.qq-post-text {
  font-size: 15px;
  line-height: 1.55;
  color: #1a1a1a;
  margin-bottom: 6px;
  word-break: break-word;
}

.qq-post-text-body {
  white-space: pre-wrap;
  display: block;
}

.qq-post-text.is-collapsed .qq-post-text-body {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  white-space: pre-wrap;
  max-height: 6.2em;
}

.qq-post-expand {
  display: inline-block;
  margin-top: 4px;
  border: none;
  background: none;
  color: #576b95;
  font-size: 13px;
  cursor: pointer;
  padding: 0;
  font-family: inherit;
}

.qq-post-expand:hover { text-decoration: underline; }

.qq-post-text.is-expanded .qq-post-expand { margin-top: 6px; }

body.dark-theme .qq-post-text { color: var(--qq-text); }

.qq-post-text:empty { display: none; margin: 0; }

.qq-post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  margin-top: 4px;
  max-width: 100%;
}

.qq-post-grid.cols-1 {
  grid-template-columns: 1fr;
  max-width: 220px;
}

.qq-post-grid.cols-2 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 300px;
}

.qq-post-grid.cols-4 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 300px;
}

.qq-post-grid-cell {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  background: var(--qq-tint);
}

.qq-post-grid-cell img,
.qq-post-grid-cell video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.qq-post-more-count {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 600;
  pointer-events: none;
}

/* 互动条 */
.qq-post-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0 8px;
  font-size: 12px;
  color: var(--qq-text-muted);
}

.qq-post-bar-icons {
  display: flex;
  align-items: center;
  gap: 14px;
}

.qq-post-bar-icons button {
  border: none;
  background: none;
  color: var(--qq-text-muted);
  font-size: 15px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.qq-post-bar-icons button:hover { color: var(--qq-primary); }

/* 底部灰底区 */
.qq-post-foot {
  margin: 0 -16px;
  padding: 10px 16px 12px;
  background: var(--qq-tint);
  border-top: 1px solid var(--qq-border-light);
}

body.dark-theme .qq-post-foot {
  background: rgba(0, 0, 0, 0.12);
  border-top-color: var(--qq-border-light);
}

.qq-post-likes {
  font-size: 13px;
  color: var(--qq-link);
  margin-bottom: 8px;
  line-height: 1.5;
}

.qq-post-likes:empty { display: none; margin: 0; }

.qq-post-empathy {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.qq-post-empathy .empathy-btn {
  flex: none;
  font-size: 12px;
  padding: 5px 10px;
  background: var(--qq-card);
  border: 1px solid var(--qq-border-light);
  border-radius: 4px;
  color: var(--qq-text-sub);
}

body.dark-theme .qq-post-empathy .empathy-btn {
  background: var(--qq-card);
  border-color: var(--qq-border);
}

.qq-post-empathy .empathy-btn.active {
  color: var(--qq-primary);
  border-color: rgba(61, 139, 122, 0.35);
  background: rgba(61, 139, 122, 0.06);
  font-weight: 600;
}

.qq-post-foot-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #eee;
  font-size: 12px;
}

body.dark-theme .qq-post-foot-actions { border-top-color: var(--qq-border-light); }

.qq-post-foot-actions button {
  border: none;
  background: none;
  color: #888;
  cursor: pointer;
  padding: 2px 0;
  font-size: 12px;
  font-family: inherit;
}

.qq-post-foot-actions button:hover { color: var(--qq-primary); }

.qq-post-foot-actions .btn-delete { color: var(--qq-danger); }

@media (min-width: 768px) {
  #pageTreehole.treehole-tab-square #postList.post-waterfall {
    background: transparent;
    padding: 0;
    min-height: calc(100vh - 240px);
  }

  #pageTreehole.treehole-tab-square .post-card--qq {
    margin: 0 0 14px;
    border-radius: 8px;
  }

  #pageTreehole.treehole-tab-square .qq-post-grid.cols-1 { max-width: 280px; }
  #pageTreehole.treehole-tab-square .qq-post-grid.cols-2 { max-width: 360px; }
  #pageTreehole.treehole-tab-square .qq-post-grid.cols-4 { max-width: 360px; }
}