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

.flex_center_column_box {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

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

.text_center {
    text-align: center;
}

.flex_column {
    flex-direction: column;
}

.line_height_18 {
    line-height: 1.8 !important;
}
.logo{
    height: 70px;
}

.pc_nav{
    width: 100%;
}

.pc_nav a{
    font-weight: bold;
    text-transform: uppercase;
    font-size: 18px;
}

.index_contact_box{
    background-image: url('../images/contact_bg.png');
    background-position: center;
    background-size: cover;
    height: 450px;
    width: 100%;
    border-radius: 60px 0px 60px 0px;
    display: flex;
    align-items: center;
    padding: 0 60px;
    box-sizing: border-box;
}


.text_uppercase{
    text-transform: uppercase;
}

.header_nav{
    width: 100%;
}

.vertical_img_box{
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
}

.vertical_container{
    position: relative;
}

.vertical_img_box img{
    height: 100%;
    width: 100%;
    object-fit: cover;
    object-position: center;
}

.article_preview{
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 768px) {
    .logo {
        height: 45px;
    }
    .index_contact_box {
        height: auto;
        border-radius: 40px 0px 40px 0px;
        padding: 20px;
    }
    .phone_banner{
        height: 200px!important;
    }
}