.mobile-menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 9px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}
.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform .18s ease, opacity .18s ease;
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
@media (max-width: 760px) {
    .site-header,
    .cb-standard-header,
    .memo-lab-header {
        position: relative;
        z-index: 100;
    }
    .site-header__inner,
    .cb-standard-header__inner,
    .memo-lab-header__inner {
        position: relative;
    }
    .mobile-menu-toggle {
        display: flex;
        margin-left: auto;
        flex: 0 0 auto;
    }
    .site-nav,
    .cb-standard-header__nav,
    .memo-lab-header .site-nav {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 110;
        margin: 0;
        padding: 10px 0 14px;
        background: #173d70;
        border-top: 1px solid rgba(255,255,255,.16);
        box-shadow: 0 8px 18px rgba(0,0,0,.18);
        flex-direction: column;
        align-items: stretch;
        gap: 0 !important;
    }
    .site-nav.mobile-open,
    .cb-standard-header__nav.mobile-open,
    .memo-lab-header .site-nav.mobile-open {
        display: flex !important;
    }
    .site-nav a,
    .cb-standard-header__nav a,
    .memo-lab-header .site-nav a {
        display: block;
        width: 100%;
        padding: 12px 20px;
        font-size: 16px;
        line-height: 1.25;
        text-decoration: none !important;
    }
    .site-nav a:hover,
    .cb-standard-header__nav a:hover,
    .memo-lab-header .site-nav a:hover {
        background: rgba(255,255,255,.08);
    }
}