@font-face {
    font-family: 'bt';
    src: url('../font/优设标题黑.ttf') format('woff');
    font-weight: normal;
    font-style: normal;
    }
.bottom{
    width: 100%;
    background-color: #132017;
}
.footer{
    width: 91%;
    margin: auto;
    margin-top: 100px;
    padding-bottom: 18px;
    font-size: 14px;
    color: #eaeaea;
    display: flex;
    justify-content: space-between;
}
.footer a {
    color: #eaeaea;
    text-decoration: none;
}
.footer a:hover {
    text-decoration: underline;
}
.footer .left{
    padding-top: 6px;
    padding-left: 10px;
}
.footer .left img{
    height: 36px; 
    margin-right: 10px;
    vertical-align: middle;/* 使图片与文字垂直居中对齐 */
}
.footer .left .brand-name {
    font-size: 20px;
    font-weight: 100;
    vertical-align: middle; /* 使文字与图片垂直居中对齐 */
    display: inline-block;
    line-height: 36x; /
}
.footer .middle{
    display: flex;
    gap: 30px;
    padding-top: 20px;
}
.footer .middle .nav1 a{
    display: block;
    margin-top: 10px;
}
.footer .middle .nav1 .teshu{
    display: block;
    margin-top: 0;
}
.footer .right{
    text-align: right;
    padding-top: 20px;
}
.footer .right .nav4{
    margin-bottom: 14px;
}
.footer .right .nav3{
    margin-top: 10px;
}
.footer .right .nav2 a,.footer .right .nav3 a,.footer .right .nav4{
    margin-right: 10px;
}