*{ margin: 0;padding: 0; }
a { 
    text-decoration: none;
    color: #fff;
    outline: none 
}

body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background: url(../img/allStart.jpg) no-repeat center center;
    background-size: cover;
    overflow: hidden;
}
.logo{
    width: 300px;
    height: 145px;
}
.logo img {
    width: 100%;
    cursor: pointer;
}
.main-nav {
    background-image: url("img/background_header.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.footer {
    background-image: url("img/bg_bottom.png");
    background-size: cover;
    width: 100%;
    height: 148px;
    position: absolute;
    bottom: 80px;
    display: flex;
    align-items: center;
    z-index: 11;
}
.footer .col4{
    width: 25%;
}
.footer .col4 img{
    width: 100%;
    height: 80px;
}
.childcol4 {
    padding: 10px 55px;
    display: flex;
    align-items: center;
    flex-direction: column;
}
.childcol4 span{
    padding: 7px 20px;
    color: #fff;
    font-weight: bold;
    background-color: #0066cc;
    border-radius: 25px;
    font-size: 20px;
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}
.main-nav a {
    display: inline-block;
    padding: 7px 20px;
    background-color: #113366;
    border: 1px solid #00c8ff;
    border-radius: 25px;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}
.main-nav a:hover {
    background-color: #0066cc;
}
.main-nav a.active {
    background-color: gold;
    color: black;
    font-weight: bold;
}
.header{
    display: flex;
    align-items: center;
}


@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }
}
@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}
@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}
.container {
    width: 100%;
    height: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
    position: relative;
}
.logomobile img{
    width: 230px;
    height: 100px;
}
.footermobile{
    background-color: #0e234f;
    display: none;
    height: 60px;
    position: absolute;
    bottom: 0;
    left: 0;
    align-items: center;
    right: 0;
    z-index: 12;
}.col4_mobile{
    width: 25%;
    padding: 0 10px;
}.childcol4_mobile img{
    width:40px;
    height: 100%;
}
.childcol4_mobile span{
    color:#fff
}.childcol4_mobile {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.group_mobile{
    background-image: url("img/bg_group_mobile.png");
    background-size: cover;
    width: 415px;
    height: 230px;
    display: none;
    flex-wrap: wrap;
    position: absolute;
    z-index: 10;
    bottom: 5%;
    left: 50%;
    transform: translate(-50%, -50%);
    align-items: center;
}
.group_mobile .col4{
    width: 50%;
}
.group_mobile .col4 img{
    width: 100%;
    height: 40px;
}
.group_mobile .childcol4 {
    padding: 10px 55px;
    display: flex;
    align-items: center;
    flex-direction: column;
}
.site-header{
    height: 160px;
    display: flex
}
@media (max-width: 600px) {
    .footer{
        display: none;
    }
    .logo {
        width: 160px;
        height: 100%;
    }.site-header {
        height: 75px;
        padding: 10px 20px;
        align-items: center;
    }
    .logomobile {
        margin-bottom: 120px;
        display: none;
        justify-content: center;
    }.footermobile, .group_mobile {
        display: flex;
    }
    .container{
        padding-right:0;
        padding-left: 0;
    }
}