main {
    margin-top: 5.5rem;
    min-height: calc(100vh - 5.5rem);
    background: #fafafa;
    padding: 2.5rem 1.5rem;
    
}

/* HEADER */
header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background: #fff;
    z-index: 99;
}
header .home {
    font-size: 0;
    text-align: right;
}
header .home .menu,
nav .header .close {
    width: 5rem;
    height: 100%;
    background: url("../img/allmenu.png") no-repeat center / 2rem;
    position: absolute;
    top: 0;
    left: 0;
    text-indent: -9999px;
}
header .home > a {
    display: block;
    width: fit-content;
    margin-left: auto;
}
header .home .logo,
nav .header .logo {
    width: 13rem;
    padding: 1.5rem;
}
header .view {
    display: flex;
    justify-content: center;
    padding: 2rem 1.5rem;
    position: relative;
}
header .view h4 {
    font-size: 2rem;
    font-weight: 600;
    white-space: nowrap;
}
header .view .back {
    width: 4rem;
    height: 100%;
    text-indent: -9999px;
    background: url("../img/prev.png") no-repeat center / 1rem;
    position: absolute;
    top: 0;
    left: 0;
}

nav {
    width: 100%;
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: -100%;
    background: #fafafa;
    z-index: 999;
    transition: left .4s;
}
nav .header {
    position: relative;
    font-size: 0;
    text-align: right;
}
nav .header .close {
    background: url("../img/close.png") no-repeat center / 2rem;
}
nav .quick_wrap,
nav .cert_wrap {
    padding: 1.5rem;
}
nav .quick_wrap {
    margin-bottom: 2rem;
}
nav .quick_wrap ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
nav .quick_wrap ul li a {
    display: block;
    font-size: 1.9rem;
    font-weight: 600;
    padding: 1.8rem;
    background: #fff url("../img/arrow.png") no-repeat calc(100% - 1.5rem) 50% / .7rem;
    border: 1px solid #eee;
    border-radius: 1rem;
}
nav .cert_wrap h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 2rem;
}
nav .cert_wrap ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: .6rem;
}
nav .cert_wrap ul li a img {
    width: 100%;
}