.banner {
    width: 100%;
    overflow: hidden;
}

.banner img {
    width: 100%;
    height: auto;
}

.about {
    display: flex;
    justify-content: flex-end;
    position: relative;
    padding-top: 20px;
}

.about::before {
    position: absolute;
    content: "";
    width: 447px;
    height: 205px;
    overflow: hidden;
    background: url("../../images/computer/about.png") no-repeat;
    left: -190px;
    top: 20px;
}

.about > .about-item {
    width: 970px;
    overflow: hidden;
    line-height: 2;
    text-indent: 24px;
}

.about-sub {
    display: flex;
    justify-content: space-between;
}

.about-sub > div {
    width: 286px;
    height: 428px;
    overflow: hidden;
    margin-top: 20px;
}

.about-sub > div:nth-child(1) {
    background: url("../../images/computer/at1.png");
}

.about-sub > div:nth-child(2) {
    background: url("../../images/computer/at2.png");
}

.about-sub > div:nth-child(3) {
    background: url("../../images/computer/at3.png");
}

.about-sub > div:nth-child(4) {
    background: url("../../images/computer/at4.png");
}

.about-sub > div > a {
    display: block;
    width: 286px;
    height: 428px;
    overflow: hidden;
}

.about-sub > div > a > p {
    text-align: center;
    color: #ffffff;
}

.about-sub > div > a > p:nth-child(1) {
    padding-top: 60px;
}

.about-sub > div > a > p:nth-child(2) {
    padding-top: 40px;
    font-size: 18px;
    letter-spacing: 0.5em;
}

.product {
    background-color: #f5f7f7;
    overflow: hidden;
    margin-top: 30px;
    padding: 20px 0px;
}

.product > .product-title {
    height: 205px;
    position: relative;
    padding: 20px 0px;
    background: url("../../images/computer/p1.png") right center no-repeat;
}

.product > .product-title::before {
    position: absolute;
    content: "";
    width: 447px;
    height: 205px;
    overflow: hidden;
    background: url("../../images/computer/product.png") no-repeat;
    left: -190px;
    top: 20px;
}

.product > .product-sub {
    display: flex;
    justify-content: space-between;
}

.product > .product-sub > div {
    width: 286px;
    overflow: hidden;
}

.product > .product-sub > div > p:nth-child(2) {
    text-align: center;
}

.product > .product-sub > div > p:nth-child(2) > a {
    font-size: 18px;
    font-weight: bold;
    color: #9a2722;
    letter-spacing: 0.5em;
    line-height: 2;
}

.product > .product-sub > div > p:nth-child(3) {
    line-height: 2;
    text-indent: 24px;
}

.news {
    height: 658px;
    overflow: hidden;
    background: url("../../images/computer/news.jpg");
}

.news > .news-title {
    height: 205px;
    position: relative;
    padding: 20px 0px;
}

.news > .news-title::before {
    position: absolute;
    content: "";
    width: 447px;
    height: 205px;
    overflow: hidden;
    background: url("../../images/computer/ntit.png") no-repeat;
    left: -190px;
    top: 20px;
}

.news > .news-info {
    display: flex;
    justify-content: space-between;
}

.news > .news-info > .news-pics {
    width: 512px;
    overflow: hidden;
}

.news-pics-tit {
    text-align: center;
    line-height: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.news-pics-tit > a {
    font-size: 18px;
    color: #9a2722;
    letter-spacing: 0.5em;
}

.news-list {
    width: 648px;
    overflow: hidden;
    display: flex;

}

.news-list > div {
    width: 215px;
    height: 392px;
    overflow: hidden;
    background: url("../../images/computer/nt1.png") right center no-repeat;
    display: flex;
}

.news-list > div > a {
    writing-mode: vertical-rl;   /* 文字从上到下，从右到左排布 */
    text-orientation: upright;   /* 汉字、假名等直立显示 */
    line-height: 1.8;            /* 调整行距更美观 */
    margin-left: 20px;
}

.news-list > div > p {
    margin-left: 30px;
}

.news-list > div > p > span:nth-child(1) {
    display: block;
    width: 70px;
    height: 70px;
    overflow: hidden;
    color: #ffffff;
    background-color: #9a2722;
    text-align: center;
    line-height: 70px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 22px;
}

.news-list > div > p > span:nth-child(2) {
    color: #9a2722;
    text-align: center;
    display: block;
    width: 70px;
    overflow: hidden;
    line-height: 2;
}