.page-main {
    padding:  0;
}

.page-main .page-tab {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 0 auto;
}

.page-main .page-tab .tab {
    width: 33%;
    height: 80px;
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 16px;
    color: #333333;
    line-height: 19px;
    border-bottom: 4px solid #f1f1f1;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.page-main .page-tab .tab.active {
    background: linear-gradient(96deg, #d5411f 0%, #b81c22 100%);
    border-radius: 0px 0px 0px 0px;
    border-bottom-color: #b81c22;
    color: #fff;
}

.page-main section {
    width: 1200px;
    margin: 0 auto;
}

.page-main section .page-items {
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 46px;
    margin-left: -20px;
    margin-right: -20px;
    min-height: 400px;
}

.page-main section .page-items .page-item {
    margin-bottom: 43px;
    cursor: pointer;
    padding-left: 20px;
    padding-right: 0;
    box-sizing: border-box;
}

/* 大卡片样式 - 前4项 */
.page-main section .page-items .page-item-large {
    width: calc(25% - 20px);
}

.page-main section .page-items .page-item-large .item {
    background: #fff9f9;
    border-radius: 28px;
    width: 100%;
    overflow: hidden;
}

.page-main section .page-items .page-item-large .item .cover {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.page-main section .page-items .page-item-large .item .cover img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    opacity: 1;
}

.page-main section .page-items .page-item-large .item .content {
    padding: 28px;
}

.page-main section .page-items .page-item-large .item .content .time {
    font-family: Arial, Arial;
    font-weight: 400;
    font-size: 14px;
    color: #e31b1b;
    line-height: 16px;
    margin-bottom: 10px;
}

.page-main section .page-items .page-item-large .item .content .title {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 500;
    font-size: 24px;
    color: #111111;
    line-height: 31px;
    margin: 10px 0;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.page-main section .page-items .page-item-large .item .content .title a {
    color: #111111;
    text-decoration: none;
}

.page-main section .page-items .page-item-large .item .content .desc {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 14px;
    color: #999999;
    line-height: 20px;
    margin-top: 10px;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* 小卡片样式 - 第5项及以后 */
.page-main section .page-items .page-item-small {
    width: calc(25% - 20px);
}

.page-main section .page-items .page-item-small .item {
    background: #fff9f9;
    border-radius: 28px;
    width: 100%;
    overflow: hidden;
    padding: 15px;
}

.page-main section .page-items .page-item-small .item .cover {
    width: 120px;
    height: 120px;
    overflow: hidden;
    float: left;
    margin-right: 15px;
    margin-bottom: 0;
}

.page-main section .page-items .page-item-small .item .cover img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    opacity: 1;
}

.page-main section .page-items .page-item-small .item .content {
    padding: 0;
    overflow: hidden;
}

.page-main section .page-items .page-item-small .item .content .header {
    overflow: hidden;
    margin-bottom: 10px;
}

.page-main section .page-items .page-item-small .item .content .header .time {
    font-family: Arial, Arial;
    font-weight: 400;
    font-size: 14px;
    color: #e31b1b;
    line-height: 19px;
    float: left;
    width: 100px;
    margin-right: 15px;
}

.page-main section .page-items .page-item-small .item .content .header .title {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 500;
    font-size: 16px;
    color: #111111;
    line-height: 19px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.page-main section .page-items .page-item-small .item .content .header .title a {
    color: #111111;
    text-decoration: none;
}

.page-main section .page-items .page-item-small .item .content .desc {
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 400;
    font-size: 14px;
    color: #999999;
    line-height: 20px;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    clear: both;
    margin-top: 10px;
}

/* 悬停效果 */
.page-main section .page-items .page-item .item:hover {
    background: linear-gradient(179deg, #de4d20 0%, #b81c22 100%);
}

.page-main section .page-items .page-item .item:hover .content .time,
.page-main section .page-items .page-item .item:hover .content .header .time {
    color: #ffffff;
}

.page-main section .page-items .page-item .item:hover .content .title,
.page-main section .page-items .page-item .item:hover .content .header .title {
    color: #ffffff;
}

.page-main section .page-items .page-item .item:hover .content .title a,
.page-main section .page-items .page-item .item:hover .content .header .title a {
    color: #ffffff;
}

.page-main section .page-items .page-item .item:hover .content .desc {
    color: #ffffff;
}

@media screen and (max-width: 700px) {
    .page-main section {
        width: 100%;
        padding: 0 26px;
    }
    
    .page-main .page-tab {
        width: 100%;
        padding: 0 20px;
    }
    
    .page-main .page-tab .tab {
        font-size: 0.75rem;
        padding: 5px;
    }
    
    .page-main section .page-items .page-item {
        width: 100% !important;
        padding-left: 0;
    }
    
    .page-main section .page-items .page-item .item .content {
        padding: 10px;
    }
    
    .page-main section .page-items .page-item .item .content .title {
        font-size: 1.125rem;
    }
}