.us_img {
    width: 100%;
    overflow: hidden;
    margin-top: 80px;
}

.us_img img {
    width: 100%;
    /* height: 735px; */
    height: 520px;
    /* transition: all 0.3s; */
}
/* 
.us_img img:hover {
    transform: scale(1.1);
} */

.us_we {
    box-sizing: border-box;
    margin: 100px auto 150px 200px
}

.us_we .title {
    font-size: 30px;
    color: #333333;
    font-weight: 500;
    /* margin: 100px 0; */
}
.us_we .en {
    margin-top: 10px;
    color: #999999;
    font-size: 20px;
}

.us_font span {
    display: block;
}

.us_font .we {
    width: 160px;
    font-size: 21px;
    font-family: Source Han Sans CN-Bold, Source Han Sans CN;
    font-weight: bold;
    color: #333333;
    margin-bottom: 4px;
}

.us_font .use {
    width: 143px;
    height: 28px;
    font-size: 14px;
    font-family: Source Han Sans CN-Normal, Source Han Sans CN;
    font-weight: 400;
    color: #999999;
}

.us_all {
    margin: 0 auto;
    display: flex;
    width: 1400px;
    margin-bottom: 200px;
}

.us_tu {
    width: 800px;
    overflow: hidden;
    /*图片放大时多出来的部分将其隐藏*/
}

.us_tu img {
    width: 100%;
    transition: all 0.3s;
    /*all表示所有属性都要变化*/
}

.us_tu img:hover {
    transform: scale(1.1);
    /*对图片进行放大*/
}

.us_release {
    margin-left: 55px;
    background: black;
    padding: 30px;
    
}

.us_release *{
    color: #fff !important;
}

.us_release div {
    margin-bottom: 35px;
    font-size: 24px;
    font-family: Source Han Sans CN-Bold, Source Han Sans CN;
    font-weight: bold;
    color: #333333;
}

.us_color {
    font-family: Source Han Sans CN-Bold, Source Han Sans CN;
    font-weight: bold;
    color: #333333;
}

.us_release li {
    margin-bottom: 10px;
}