/* ----------- navbar pc ----------- */ 
nav{
    top: 0;
    width: 100%;
    background-color: #fff;
    z-index: 10;
    opacity: 1;
    transition: .5s;
}

.navbar_all{
    width: 80vw;
    height: 80px;
    margin:  0 auto;
    align-items: center;
    transition: .6s;
}

.nav_left {
    width: 15vw;
    align-items: center;
}

.nav_left img{
    width: 100%;
}
 
.nav_center{
    width: 75vw;
    justify-content:flex-end;
    margin: 0;
}

.nav_li{
    /* width: 8vw; */
    padding: 0px 25px;
    text-align: center;
    height: 100%;
    line-height: 80px;
    transition: .3s;
    background: linear-gradient( #fff 50%, #1a75bb 50%);
    background-size: 100% 200%;
    background-position: 100% 0%;
    transition: .3s;
}

.nav_li a{
    text-decoration: none;
}

.nav_center li p{
    font-size: 18px;
    color: #1a75bb;
    transition: .2s;
    margin: 0;
}

.nav_center li:hover, .nav_center li p:hover{
  background-position: 0% 100%;
  color:#fff;
}

.nav_right{
    color: #8a8a8a;
    width: 10vw;
    align-items: center;
    justify-content:flex-end;
    transition: .2s;
}

.nav_right:hover{
    color: #1a75bb;
}

.right_icon_arrow{
    margin: 0 10px;
}

.nav_op{
    opacity: 0.85;
}

/* ----------- navbar phone ----------- */
.nav_0{
    display: none;
    text-align:center;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: .5rem 1rem;
}

.nav_1{
    width: 30vw;
}

.nav_1 img{
    width: 100%;
}

.nav-act{
    display: block;
    color: #1a75bb;
    padding:1rem;
}

.nav-item{
    transition: .3s;    
}

.nav-item:active{
    background-color: #1a75bb; 
}

.nav-item:active a{
    color: #fff;
}

.navbar-toggler{
    padding: 0;
}

/* 版本尺寸 */
@media screen and (min-width: 1920px){}
@media (min-width:1366px) and (max-width:1920px){
    .navbar_all{
        font-size: 16px;
    }

    .nav_left {
        width: 20vw;
    }
}
@media (min-width:1024px) and (max-width:1365px){
    .navbar_all{
        font-size: 15px;
    }
    
    .nav_left {
        width: 30vw;
    }

    .nav_li {
        padding: 0 10px;
    }
    
    .nav_center li p {
        font-size: 15px;
    }
}
@media (min-width:768px) and (max-width:1023px){
    .navbar_all{
        font-size: 16px;
    }
    
    .nav_pc{
        display: none;
    }

    .nav_0{
        display: flex;
    }

    .nav_center li p {
        font-size: 15px;
    }
}
@media (min-width:414px) and (max-width:767px){
    .nav_pc{
        display: none;
    }

    .nav_0{
        display: flex;
    }

    .nav_1 {
        width: 60vw;
    }
}
@media (min-width:374px) and (max-width:413px){
    .nav_pc{
        display: none;
    }

    .nav_0{
        display: flex;
    }

    .nav_1 {
        width: 60vw;
    }
}
@media screen and (max-width: 373px){
    .nav_pc{
        display: none;
    }

    .nav_0{
        display: flex;
    }

    .nav_1 {
        width: 50vw;
    }
}