header {
    position: sticky;
    top: env(safe-area-inset-top,0px);
    z-index: 20;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: var(--glass);
    border-bottom: 1px solid var(--line)
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 66px
}

nav {
    display: flex;
    gap: 24px;
    align-items: center;
    font-size: 15px;
    color: var(--mute)
}

nav a:hover {
    color: var(--ink)
}

@media(max-width: 760px) {
    nav a:not(.btn) {
        display:none
    }
}

.bg {
    display: none;
    background: var(--glass);
    border: 1px solid var(--line);
    color: var(--ink);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 18px;
    cursor: pointer
}

.mega {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--bg2);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 60px #0007;
    max-height: calc(100vh - 90px);
    overflow: auto
}

.mega.open {
    display: block
}

.mg {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(210px,1fr));
    gap: 22px;
    padding: 26px 20px
}

.mg h5 {
    margin: 0 0 8px;
    font-size: 14px;
    color: var(--c1);
    letter-spacing: .04em;
    text-transform: uppercase
}

.mg a {
    display: block;
    padding: 4px 0;
    font-size: 14px;
    color: var(--mute)
}

.mg a:hover {
    color: var(--ink)
}

@media(max-width: 760px) {
    .bg {
        display:block
    }
}

.cats {
    display: flex;
    gap: 2px
}

.cats button {
    background: none;
    border: 0;
    color: var(--mute);
    font-size: 14px;
    padding: 8px 10px;
    cursor: pointer;
    border-radius: 8px;
    font-weight: 600
}

.cats button.on,.cats button:hover {
    color: var(--ink);
    background: var(--glass)
}

.pn {
    display: none
}

.pn.on {
    display: block
}

.pt {
    display: none;
    margin: 18px 0 0;
    font-size: 18px
}

.mg h6 {
    margin: 0 0 6px;
    font-size: 12px;
    color: var(--c1);
    letter-spacing: .05em;
    text-transform: uppercase
}

.mg {
    grid-template-columns: repeat(auto-fit,minmax(200px,1fr));
    padding: 22px 0
}

.mg .col {
    columns: 1
}

@media(max-width: 1100px) {
    .cats {
        display:none
    }

    .bg {
        display: block
    }

    .pn {
        display: block
    }

    .pt {
        display: block
    }

    .mg {
        padding: 10px 0 18px
    }
}

.tt {
    background: #f5f7fb;
    /* border:1px solid var(--line); */
    color: var(--ink);
    border-radius: 10px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 18px
}