ul li{
    list-style: none;
}
ul,li,p{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none; /* 去除默认的下划线 */
    outline: none;	/* 去除旧版浏览器的点击后的外虚线框 */
    color: #000;	/* 去除默认的颜色和点击后变化的颜色 */
}

/* header */
.header {
    line-height: 70px;
}
.header .logo img{
    width: 140px;
}
.header .nav{
    color: #555353;
    text-align: center;
}
.header .nav .active{
    background: #70bb2d;
    color: #fff;
}
.header .nav li a{
    display: inline-block;
    width: 100%;
}
.header .nav li:hover a{
    text-decoration: none;
    outline: none;
    color: #fff;
}
.header .nav .active a{
    color: #fff;
}
.header .nav li{
    cursor: pointer;
}
.header .nav li:hover{
    background: #70bb2d;
    color: #fff;
}
.header .btn-yuyue{
    text-align: right;

}
.header .btn-yuyue span{
    color: #ff0302;
    border: 1px solid #ff0302;
    padding: 3px 6px;
    border-radius: 5px;
    cursor: pointer;
}
.header .btn-menu {
    text-align: right;
}
.header .btn-menu img{
    width: 30px;
}

/* banner */

.banner{
    position: relative;
    width: 100%;
    color: #fff;
}
.banner img{
    width: 100%;
}
.banner .content{
    position: absolute;
    width: 560px;
    top: 23%;
    right:12%;
}
.banner .content h3{
    font-weight: normal;
    padding-left: 20px;
    font-size: 40px;
}
.banner .content h4{
    display: inline-block;
    padding: 20px 0;
    margin: 20px 0;
    font-size: 86px;
    border-bottom: 2px solid #fff;
    border-top: 2px solid #fff;
}
.banner .content p{
    font-size: 26px;
}
.banner .btn-yuyue{
    color: #fffb08;
    text-align: right;
    font-size: 24px;
    margin-top: 30px;
}
.banner .btn-yuyue span{
    border: 2px solid #fffb08;
    border-radius: 8px;
    padding: 6px 16px;
    cursor: pointer;
}
/* 标题 - 内容 样式 */
.box-title{
    color: #70bb2d;
    text-align: center;
    font-size: 26px;
    line-height: 50px;
    border-bottom: 1px solid #d0cece;
    position: relative;
}
.box-title::after{
    content: '';
    width: 130px;
    height: 4px;
    background: #70bb2d;
    position: absolute;
    display: inline-block;
    bottom: -2px;
    border-radius: 2px;
    margin-left: -65px;
    left: 50%;
}

.box-content{
    color: #5b5959;
    font-size: 18px;
    line-height: 40px;
    text-indent: 2rem;
    margin-top: 20px;
}


.study-project{
    margin-top: 30px;
    color: #838282;

}
.study-project .item {
    margin-top: 10px;
}
.study-project .item img{
    width: 100%;
}
.study-project .item p{
    background: #daefc6;
    line-height: 40px;
    text-align: center;
}


.footer{
    position: relative;
}

.footer img{
    width: 100%;
}
.footer .content{
    position: absolute;
    width: 100%;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    height: 260px;
    padding: 30px 0;
}
.footer .content h3{
    margin-bottom: 30px;
}
.footer .content p{
    margin: 5px 0;
}
.footer .content p a{
    cursor: pointer;
    text-decoration: none;
}
.footer .content .origin-span{
    color: #e8655b
}

.footer .form-box{
}
.footer .item{
    padding-left: 130px;
}
.footer .form-box input{
    width: 340px;
    line-height: 30px;
    outline: none;
    padding-left: 10px;
}
.footer .form-box .btn-submit span{
    display: inline-block;
    padding: 6px 40px;
    background:  #e8655b;
    cursor: pointer;
}
.footer .phone{
    display: flex;
    justify-content: right;
    align-items: center;
    margin: 10px 0;
}
.footer .phone select{
    width: 80px;
    line-height: 30px;
    border: none;
    outline: none;
    height: 34px;
    text-align: center;
    background: #fff;
}
.footer .phone input{
    width: 260px;
}

.copyright{
    background: #000;
    text-align: center;
    color: #fff;
    padding: 10px 0;
}


@media (min-width: 768px){
    .footer .phone{
        width: 340px;
    }
}