#promote-board-app { max-width: 900px; }

.section {
  background: var(--vp-c-bg-soft);
  border: 1px solid var(--vp-c-divider);
  border-radius: 16px;
  padding: 24px 0;
  margin-bottom: 24px;
  overflow: hidden;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--vp-c-text-1);
  margin: 0 24px 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--vp-c-brand-1);
}

.scroll-row { overflow: hidden; margin-bottom: 12px; }
.scroll-row:last-child { margin-bottom: 0; }
.scroll-track { display: flex; gap: 16px; width: max-content; }

.group-card {
  flex-shrink: 0;
  width: 260px;
  background: var(--vp-c-bg);
  border: 1px solid var(--vp-c-divider);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}

.group-card:hover {
  border-color: var(--vp-c-brand-1);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.group-avatar {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--vp-c-divider);
}

.group-avatar-placeholder {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--vp-c-bg-alt);
  border: 1px solid var(--vp-c-divider);
}

.group-info { flex: 1; min-width: 0; }
.group-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--vp-c-text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.group-number { font-size: 12px; color: var(--vp-c-text-2); margin-top: 2px; }

.group-join-btn {
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  background: #8847ff;
  color: #fff;
  border: 1px solid #8847ff;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.group-join-btn:hover {
  background: #7c3aed;
  border-color: #7c3aed;
}

.empty-hint {
  text-align: center;
  padding: 32px 20px;
  color: var(--vp-c-text-3);
  font-size: 14px;
}

.promote-note {
  margin-bottom: 20px;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14px;
  background: rgba(91, 108, 255, 0.08);
  border: 1px solid rgba(91, 108, 255, 0.25);
  color: var(--vp-c-text-2);
}