header {
    position: sticky;
    z-index: 1001;
    top: 0;
    width: 100%;
    border-bottom: 0.5px solid #2E2E2E;
    color: var(--fg-color);
    background-color: rgba(var(--bg-color-rgb), 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.hearer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 60px;
    height: 75px;
}

.header-left>a>h1 {
    font-size: 24px;
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    grid-gap: 50px;
}

.header-right .nav-item {
    opacity: 0.5;
}

.header-right .nav-item.active {
    opacity: 1;
}

.nav-list {
    display: flex;
    align-items: center;
    grid-gap: 50px;
}

.nav-item.out-link-nav>img {
    position: absolute;
    width: 24px;
    height: 24px;
    opacity: 0;
    transform: scale(0);
    transform-origin: bottom left;
    right: -24px;
    transition: .3s cubic-bezier(0.37, 0.39, 0.22, 1.57);
    transition-property: opacity transform;
}

.nav-item.out-link-nav:hover > img{
    opacity: 1;
    transform: scale(1);
}

.nav-item,
.nav-item>a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-item:hover>.popup-nav-mask {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    pointer-events: unset;
}

#header-login {
    opacity: 0.5;
}

#header-mine {
    opacity: 1;
}

#header-mine img {
    opacity: 0.5;
}

.popup-nav-mask {
    position: absolute;
    width: 100px;
    padding-top: 10px;
    top: 40px;
    opacity: 0;
    transform: translate3d(0, -10px, 0);
    transition: .3s ease;
    transition-property: opacity transform;
    pointer-events: none;
}

.popup-nav-list {
    width: 100%;
    padding: 5px 0;
    border-radius: 5px;
    background-color: #FFF;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.popup-nav-item {
    text-align: center;
    transition: .3s ease;
    color: var(--bg-color);
}

.popup-nav-item>p,
.popup-nav-item>a {
    display: block;
    padding: 5px;
}

.popup-nav-item:hover {
    background-color: var(--bg-color);
    color: var(--fg-color);
}

.nav-item img {
    width: 46px;
    height: 46px;
}

/* mobile-menu-wrap */
.mobile-menu-wrap {
    position: absolute;
    z-index: 2001;
    top: 0;
    right: 0;
    display: none;
    padding: 20px;
    --menu-color: var(--fg-color);
}

.mobile-menu-inner {
    position: relative;
    width: 24px;
    height: 19px;
}

header.mobile-menu-show .mobile-menu-inner::before {
    transform: rotate(45deg);
    transform-origin: left center;
}

header.mobile-menu-show .mobile-menu-inner::after {
    transform: rotate(-45deg);
    transform-origin: left center;
}

header.mobile-menu-show .mobile-menu-inner>span {
    opacity: 0;
}

.mobile-menu-inner::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    top: 0;
    left: 0;
    background-color: var(--menu-color);
    transition: .3s ease;
    transition-property: transform transform-origin;
}

.mobile-menu-inner::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--menu-color);
    transition: .3s ease;
    transition-property: transform transform-origin;
}

.mobile-menu-inner>span {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 100%;
    height: 2px;
    background-color: var(--menu-color);
    transition: .3s ease;
    transition-property: opacity;
}

@media screen and (max-width: 600px) {
    .hearer-inner {
        height: 60px;
    }

    .mobile-menu-wrap {
        display: block;
    }

    #header-mine {
        display: flex;
        flex-direction: column;
        grid-gap: 50px;
    }

    #header-mine>a {
        display: none;
    }

    .popup-nav-mask {
        position: relative;
        opacity: 1;
        top: 0;
        padding-top: 0;
        transform: translate3d(0, 0, 0);
        pointer-events: unset;
    }

    .popup-nav-list {
        display: flex;
        flex-direction: column;
        box-shadow: unset;
        grid-gap: 40px;
        padding: 0;
        background-color: transparent;
    }

    .popup-nav-item {
        color: var(--fg-color);
        opacity: 0.5;
    }

    .popup-nav-item:hover {
        background-color: transparent;
        color: #000;
    }

    .header-left {
        position: relative;
        z-index: 2001;
    }

    header.mobile-menu-show .header-right {
        opacity: 1;
        transform: translate3d(0, 0px, 0);
        pointer-events: unset;
    }

    .header-right {
        position: fixed;
        z-index: 2000;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--bg-color);
        align-items: center;
        justify-content: center;
        opacity: 0;
        transform: translate3d(0, -40px, 0);
        transition: .3s ease;
        transition-property: opacity transform;
        pointer-events: none;
    }

    .header-right,
    .nav-list {
        flex-direction: column;
    }

    .hearer-inner {
        padding: 0 20px;
    }
}