:root {
  --primary-color: #3498db;
  --primary-hover: #2980b9;
  --secondary-color: #f1c40f;
  --dark-color: #2c3e50;
  --light-color: #ecf0f1;
  --text-color: #333;
  --text-secondary: #7f8c8d;
  --border-color: #ddd;
  --bg-color: #2b2b2b;
  --card-bg: #1e1e1e;
}

.container {
  min-height: 100vh;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding: 20px;
}

.secondaryHeader {
  background-color: var(--card-bg);
  padding: 15px 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-wrap: wrap; /* 可换成 nowrap + overflow-x: auto 实现强制一行 + 横向滚动 */
  gap: 15px;
  align-items: center;
  justify-content: flex-start;
}

.selectBox {
  background-color: var(--light-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 8px 10px;
  font-size: 14px;
}

.selectBox:focus {
  outline: none;
  border-color: var(--primary-color);
}

.tagFilters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background-color: var(--light-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 8px 10px;
  font-size: 14px;
}

.tagFilters label {
  margin: 0;
  color: var(--text-color);
}

.filterButton {
  padding: 8px 16px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 14px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.filterButton:hover {
  background-color: var(--primary-hover);
}

.results {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.postItem {
  background-color: var(--card-bg);
  padding: 20px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-color);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.postItem h3 {
  margin: 0 0 10px 0;
  color: var(--text-color);
}

.postItem p {
  margin: 4px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.secondaryHeader {
  background-color: var(--card-bg);
  padding: 15px 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.leftSection {
  display: flex;
  gap: 10px;
}

.centerSection {
  flex: 1;
  display: flex;
  justify-content: center;
}

.rightSection {
  display: flex;
  justify-content: flex-end;
}