.joe_dropdown {
    position: relative;
    &__link {
        display: flex;
        align-items: center;
        &-icon {
            transition: transform 0.35s;
        }
    }
    &__menu {
        position: absolute;
        left: 50%;
        visibility: hidden;
        z-index: 999;
        border-top: 3px solid var(--theme);
        transform-origin: top;
        background: var(--background);
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
        border-radius: 0 0 4px 4px;
        padding: 10px 0;
        opacity: 0;
        transform: translateX(-50%) perspective(600px) rotateX(-45deg);
        transition: opacity 0.35s, visibility 0.35s, transform 0.35s;
        &::before {
            content: '';
            position: absolute;
            top: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 0;
            border-left: 7px solid transparent;
            border-right: 7px solid transparent;
            border-bottom: 7px solid var(--theme);
        }
    }
    &.active {
        .joe_dropdown__link-icon {
            transform: rotate(-180deg);
        }
        .joe_dropdown__menu {
            visibility: visible;
            opacity: 1;
            transform: translateX(-50%) perspective(600px) rotateX(0);
        }
    }
}

.joe_header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--background);
    box-shadow: 0 2px 10px 0 rgba(0, 0, 0, 0.1);
    &__above {
        &-logo {
            position: relative;
            display: flex;
            align-items: center;
            height: 60px;
            padding-right: 15px;
            margin-right: 15px;
            img {
                max-width: 150px;
                max-height: 50px;
                object-fit: cover;
            }
            &::after {
                content: '';
                position: absolute;
                top: 50%;
                right: 0;
                width: 1px;
                height: 20px;
                background: var(--classC);
                transform: translateY(-50%);
            }
        }
        &-nav {
            display: flex;
            align-items: center;
            .item {
                position: relative;
                height: 60px;
                line-height: 60px;
                font-size: 15px;
                padding: 0 8px;
                margin-right: 15px;
                transition: color 0.35s;
                white-space: nowrap;
                color: var(--main);
                &:last-child {
                    margin-right: 0;
                }
                &::after {
                    content: '';
                    position: absolute;
                    bottom: 0;
                    left: 0;
                    right: 0;
                    height: 3px;
                    transition: opacity 0.5s, transform 0.5s;
                    border-radius: 6px 6px 0 0;
                    opacity: 0;
                    transform: scaleX(0.25);
                    background: var(--theme);
                }
                &.active,
                &:hover {
                    color: var(--theme);
                    &::after {
                        opacity: 1;
                        transform: scaleX(1);
                    }
                }
            }
            .joe_dropdown {
                &__link {
                    a {
                        height: 60px;
                        line-height: 60px;
                        font-size: 15px;
                        padding-left: 8px;
                        padding-right: 3px;
                        transition: color 0.35s;
                        white-space: nowrap;
                        color: var(--main);
                    }
                }
                &__menu {
                    width: 110px;
                    text-align: center;
                    a {
                        display: block;
                        line-height: 34px;
                        height: 34px;
                        transition: color 0.35s, background 0.35s;
                        color: var(--minor);
                        white-space: nowrap;
                        overflow: hidden;
                        text-overflow: ellipsis;
                        padding: 0 15px;
                        &:hover,
                        &.active {
                            color: var(--theme);
                            background: var(--classD);
                        }
                    }
                }
            }
        }
        &-search {
            position: relative;
            margin-left: auto;
            display: flex;
            align-items: center;
            .input {
                background: var(--classC);
                width: 170px;
                height: 34px;
                border: 1px solid transparent;
                padding: 0 18px;
                color: var(--routine);
                transition: background 0.35s, border-color 0.35s, padding-right 0.35s;
                border-radius: 17px 0 0 17px;
                &:focus {
                    background: var(--background);
                    border-color: var(--theme);
                    padding-right: 28px;
                    ~ .icon {
                        transform: translate3d(0, -50%, 0) rotateY(180deg);
                    }
                }
            }
            .submit {
                position: relative;
                z-index: 1;
                height: 34px;
                border: none;
                background: var(--theme);
                color: #fff;
                border-radius: 0 17px 17px 0;
                padding: 0 10px;
            }
            .icon {
                position: absolute;
                top: 50%;
                left: 142px;
                width: 28px;
                height: 38px;
                background: url(../img/search.png);
                background-size: 100% 100%;
                transition: transform 0.35s;
                transform: translate3d(100%, -50%, 0) rotateY(180deg);
            }
        }
    }
    &__below {
        border-top: 1px solid var(--classC);
        height: 45px;
        &-class {
            display: flex;
            .item {
                margin-right: 15px;
                color: var(--minor);
                height: 45px;
                line-height: 45px;
                transition: color 0.35s;
                white-space: nowrap;
                &:hover,
                &.active {
                    color: var(--theme);
                }
            }
            .joe_dropdown {
                margin-right: 15px;
                &__link {
                    .item {
                        margin-right: 3px;
                    }
                }
                &__menu {
                    width: 110px;
                    text-align: center;
                    a {
                        display: block;
                        height: 34px;
                        line-height: 34px;
                        white-space: nowrap;
                        overflow: hidden;
                        text-overflow: ellipsis;
                        color: var(--minor);
                        transition: color 0.35s, background 0.35s;
                        &:hover,
                        &.active {
                            color: var(--theme);
                            background: var(--classD);
                        }
                    }
                }
            }
        }
    }
}

.joe_aside {
    padding: 15px 0;
    margin-left: 15px;
    &__item {
        position: relative;
        width: 250px;
        margin-bottom: 15px;
        border-radius: 8px;
        box-shadow: var(--box-shadow);
        overflow: hidden;
        &:last-child {
            position: sticky;
            margin-bottom: 0;
        }
        &.author {
            background: var(--background);
            padding: 45px 15px 15px;
            &::before {
                content: '';
                position: absolute;
                top: 90px;
                left: 0;
                width: 100%;
                height: 30px;
                z-index: 2;
                background: linear-gradient(to bottom, rgba(255, 255, 255, 0), var(--background));
            }
            &::after {
                display: none;
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 273px;
                background: url('https://cdn.jsdelivr.net/npm/typecho_joe_theme@4.3.5/assets/img/snow.gif') no-repeat;
                background-size: cover;
                z-index: 3;
                pointer-events: none;
            }
        }
    }
}