.hero{
    background:
    linear-gradient(
    135deg,
    #0d1b2a,
    #1b263b
    );

    color:#fff;
    min-height:90vh;

    display:flex;
    align-items:center;
}
/* =====================
ヘッダー
===================== */

.site-header{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    background:#fff;
    z-index:999;
    padding:20px 0;
    border-bottom:1px solid #eee;
}

.header-inner{
    width:90%;
    max-width:1200px;
    margin:auto;

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

.logo{
    font-size:24px;
    font-weight:700;
    letter-spacing:2px;
    color:#111;
}

.nav-menu{
    display:flex;
    gap:40px;
}

.nav-menu a{
    color:#111;
    font-size:14px;
    letter-spacing:1px;
    transition:.3s;
}

.nav-menu a:hover{
    opacity:.6;
}