body {
    background:#f3f6f8;
    margin:0;
    font-family: arial;
    min-height: 100vh;
    position: relative;
}
a {
    color:#000;
    text-decoration: none;
}
nav ul {
    list-style: none;
    display: flex;
    padding:0;
}
nav ul a{
    color:#fff;
}
header {
    max-width: 1530px;
    margin: auto;
    height: 150px;
    margin-bottom: -150px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.container {
    max-width:1530px;
    width:100%;
    margin:auto;
}
.logo a {
    display: flex;
    align-items: center;
}
.logo img {
    width:30px;
}
.logo span{
    font-size: 38px;
    font-weight: 600;
    color: #e79e18;
    padding-left: 13px;
}
nav li{
    margin-left: 30px;
}
nav a:hover{
    color: #f19c00;
}
.f-title {
    width:40%;
    margin-top: 170px;
}
.f-title h1 {
    font-size: 65px;
}
.f-title p {
    font-size: 25px;
}
.s1 {
    background:url(img/main.jpg);
    background-size: cover;
    background-position: bottom;
    height: 650px;
    display: flex;
}
.s2 .container {
    display: flex;
}
.card-4 {
    width: 25%;
    background: #fff;
    margin: 20px;
    border-radius: 10px;
    padding: 36px;
}







@media (max-width:700px) {

}