/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Microsoft YaHei", sans-serif;
}

body {
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
  min-width: 1920px;
}

/* 主体容器 */
.st-container {
  width: 1400px;
  margin: 0 auto;
  background-color: white;
  padding: 20px 30px;
  min-height: 100vh;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

/* 面包屑导航 */
.breadcrumb {
  padding: 15px 0;
  border-bottom: 1px solid #eee;
  margin-bottom: 30px;
}

.breadcrumb a {
  color: #666;
  text-decoration: none;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: #be0000;
}

.breadcrumb span {
  margin: 0 5px;
  color: #999;
}

/* 内容布局 */
.content-wrapper {
  display: flex;
  justify-content: space-between;
}

/* 活动列表 */
.activity-list {
  width: 960px;
}

.activity-item {
  display: flex;
  padding: 25px 0;
  border-bottom: 1px dashed #eee;
  transition: all 0.3s ease;
}

.activity-item:hover {
  background-color: #fafafa;
}

.activity-thumb {
  width: 220px;
  height: 150px;
  margin-right: 20px;
  overflow: hidden;
  border-radius: 4px;
  flex-shrink: 0;
}

.activity-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.activity-item:hover .activity-thumb img {
  transform: scale(1.05);
}

.activity-content {
  flex: 1;
}

.activity-title {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 12px;
}

.activity-title a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s;
}

.activity-title a:hover {
  color: #be0000;
}

.activity-desc {
  color: #666;
  font-size: 14px;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  height: 40px;
  line-height: 1.5;
}

.activity-meta {
  display: flex;
  align-items: center;
  color: #999;
  font-size: 12px;
}

.activity-time {
  margin-right: 15px;
}

.activity-category {
  padding: 2px 8px;
  background-color: #f0f0f0;
  border-radius: 3px;
}

/* 广告区 */
.ad-section {
  width: 420px;
  padding-left: 20px;
}

.ad-image {
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin-bottom: 20px;
  transition: transform 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ad-image:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 分页 */
.pagination {
  margin-top: 40px;
  text-align: center;
  padding: 20px 0;
}

.pagination a,
.pagination span {
  display: inline-block;
  padding: 8px 15px;
  margin: 0 5px;
  border: 1px solid #ddd;
  color: #666;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s;
}

.pagination a:hover {
  background-color: #f0f0f0;
  color: #be0000;
  border-color: #be0000;
}

.pagination .current {
  background-color: #be0000;
  color: white;
  border-color: #be0000;
}

.pagination .prev-next {
  padding: 8px 20px;
}

/* 响应式调整 */
@media (max-width: 1919px) {
  body {
    min-width: auto;
  }

  .container {
    width: 90%;
    max-width: 1400px;
  }
}