body {
    margin: 0;
    padding: 0;
}
#app {
    overflow: hidden;
}

h1,
h2,
h3,
h4,
p {
    margin: 0;
    padding: 0;
    font-family: Arial;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

button {
    cursor: pointer;
}

a {
    text-decoration: none;
    font-family: Arial;
}

[v-cloak] {
    display: none
}

.main_content {
    width: 1200px;
}

header {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0f122b;
    padding: 5px 0;
    position: fixed;
    z-index: 99;
    border-bottom: 1px solid #3b3c3f;
    box-shadow: 0 0 10px 0 rgba(0,0,0,.2);
}

.logo {
    width: 70px;
}

nav ul {
    display: flex;
    margin-left: 20px;

}

nav ul li a {
    display: block;
    color: #fff;
    font-size: 18px;
    transition: 400ms;
}

nav ul li a::before {
    background-color: #fff;
}

nav ul li {
    padding: 10px 20px;
}

nav {
    display: flex;
    align-items: center;
}

.underline {
    display: inline-block;
    position: relative;
    cursor: pointer;
    padding-bottom: 3px;
}

.underline::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;

    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.2s ease-in-out;
}

.underline:hover::before {
    transform-origin: left;
    transform: scaleX(1);
}

nav button {
    padding: 10px 20px;
    font-size: 18px;
    background-color: transparent;
    border: 1px solid #fff;
    margin-left: 20px;
    color: #fff;
    transition: 400ms;
}

nav button:hover {
    background-color:#fff; 
    color: #0f122b;
}

.language_icon {
    width: 30px;
    cursor: pointer;
}

.herader_box {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer {
    padding-top: 80px;
    background-color: #0f122b;
}

.index_box {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer_content {
    display: flex;
    justify-content: space-between;
    /* align-items: center; */
}

.footer_column h3 {
    font-size: 26px;
    color: #fff;
}
.footer_column ul a {
    color: #fff;
    font-size: 18px;
}

.footer_column ul a::before{
    background-color: #fff;
}
.footer_column ul li {
    padding: 5px 0;
}
.footer_column ul{
    margin-top: 15px;
}
.footer_address{
    width: 400px;
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.footer_address p{
    color: #fff;
    line-height: 26px;
    width: 350px;
}
.footer_about{
    width: 420px;
    color: #fff;
    line-height: 26px;
    margin-top: 20px;
}
.footer_address img{
    width: 35px;
    height: 35px;
}
.footer_copyright{
    margin-top: 40px;
    border-top: 1px solid #4e4e4e;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}
footer{
    flex-direction: column;
}
.footer_copyright p{
    color: #fff;
    font-size: 16px;
}
.index_contact{
    background-image: url(../images/index_contact_bg3.png);
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-size: cover !important;
    width: 100%;
    height: 395px;
}
.index_contact_content h2{
    color: #fff;
    font-size: 55px;
}

.index_contact_content button{
    padding: 10px 30px;
    font-size: 18px;
    background-color: transparent;
    border: 1px solid #fff;
    margin-top: 40px;
    color: #fff;
    transition: 400ms;
}

.index_contact_content button:hover {
    background-color: #fff;
    color: #0f122b;
}
.other_header{
    /* width: 100%; */
    background-position: center !important;
    background-repeat: no-repeat !important;
    background-size: cover !important;
    height: 650px;
    position: relative;
}
.other_header h2{
    position: absolute;
    top: 420px;
    left: 10%;
    font-size: 60px;
    color: #fff;
    font-weight: normal;
}
.el-dropdown-menu{
    /* border-radius: 0px!important; */
}
.el-dropdown-menu__item{
    font-size: 16px!important;
    line-height: 42px!important;
    padding: 5px 25px!important;
    text-align: center!important;
}
.pc_nav{
    display: block;
}
.phone_nav{
    display: none;
}
.nav-menu{
    display: none;
}
@media screen and (max-width: 768px) {
    .main_content {
        width: 100%
    }
    .index_contact{
        height: 195px;
        padding: 10px 20px;
        box-sizing: border-box;
    }
    .pc_nav{
        display: none;
    }
    .phone_nav {
        display: block;
        height: 70px;
        padding: 0 10px;
        box-sizing: border-box;
        background: #0f122b;
        position: fixed;
        top: 0;
        z-index: 9;
        box-shadow: 0 5px 5px rgba(186, 186, 186, 0.25);
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: center;
    }
    .phone_menu_icon {
        width: 50px;
        height: 50px;
    }
    .phone_logo {
        height: 38px;
    }
    .nav-menu.show {
        max-height: 650px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        display: flex;
        justify-content: center;
        background-color: #444;
        margin: 0;
        padding: 0;
        transition: max-height 0.5s ease-out;
        overflow: hidden;
        max-height: 0;
        z-index: 999;
        flex-direction: column;
        width: 100%;
        text-align: center;
    }
    .nav-menu a {
        color: white;
        padding: 12px 20px;
        text-decoration: none;
        text-align: center;
        font-size: 18px;
    }
    .submenu {
        display: flex;
        flex-direction: column;
    }
    .submenu a {
        color: #ccc;
    }
    .phone_language_icon{
        width: 35px;
        margin-right: 15px;
    }
    .phone_language_menu_box{
        display: flex;
        align-items: center;
    }
    .nav-menu li{
        list-style: none;
        color: white;
        padding: 12px 20px;
        text-align: center;
        font-size: 18px;
    }
    .other_header{
        height: 320px;
    }
    .other_header h2 {
        top: 210px;
        font-size: 42px;
    }
    .index_contact_content h2{
        font-size: 38px;
    }
    .index_contact_content button{
        margin-top: 10px;
    }
    .footer_content{
        display: none;
    }
    footer{
        padding: 0;
    }
    .footer_copyright{
        margin-top: 0;
    }
}