.right-arrow {
    background: linear-gradient(275deg, #000 47.62%, rgba(0, 0, 0, 0) 100%);
}

.left-arrow {
    background: linear-gradient(90deg, #000 47.62%, rgba(0, 0, 0, 0) 100%);
}

.arrow-container {
    border-radius: 50px;
    transition: all 0.2s;
    cursor: pointer;
}

.arrow-container:hover {
        background: var(--dx-base3-color);
    }

#app-nav .bg-sprite-new-nav {
    background: url(../images/sprite-new-nav.png?v=1.0.0);
    background-repeat: no-repeat;
}

ul.discover li i {
    width: 21px;
    height: 21px;
    vertical-align: bottom;
    margin-right: 6px;
}

ul.discover li i.discoverRecommended {
    background-position: -45px -47px !important;
}

ul.discover li i.discoverHottest {
    background-position: 0 -19px !important;
}

ul.discover li i.discoverMV {
    background-position: -24px -20px !important;
}

ul.discover li i.discoverTopRated {
    background-position: -65px 0 !important;
}

ul.discover li i.discoverPopularHomemade {
    background-position: -47px -19px !important;
}

ul.discover li i.discoverPlaylist {
    background-position: -75px -19px !important;
    height: 21px;
}

ul.discover li i.discoverChannels {
    background-position: -127px -119px !important;
    height: 20px;
}

ul.discover li i.discoverRandom {
    background-position: 42px -1px !important;
}

ul.discover li i.discoverPS {
    background-position: 69px -44px !important;
}

ul.discover li i.discoverPHP {
    background-position: 96px -43px !important;
}

ul.discover li i.discoverNewestVideos {
    background-position: -148px -119px !important;
}

ul.discover li i.discoverPornstars {
    background-position: -130px -22px !important;
    height: 19px;
}

ul.discover li i.discoverPornstars.gay {
    background-position: -124px -48px !important;
    height: 19px;
    width: 25px;
    margin-right: 2px;
}

ul.discover li i.discoverDvd {
    background-position: 0 -45px !important;
}

ul.discover li i.discoverUploadVideos {
    background-position: -24px -45px !important;
}

ul.discover li i.discoverViewersChoice {
    background-position: 0 -143px !important;
}

/* ============================================================
 * 左侧分类栏（components/category_sidebar.phtml）
 * 一级 = 分组标题（14px/600，浅色，可折叠）
 * 二级 = 分类入口（13px/400，弱化色，左缩进 14px）
 * 分组之间用细分隔线断开，选中态由 .is-active 承载
 * ============================================================ */
.dx-cate-nav .dx-cate-group + .dx-cate-group {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.dx-cate-nav .dx-cate-group__head {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--dx-subtitle-color);
    cursor: pointer;
    list-style: none;
    -webkit-user-select: none;
    user-select: none;
}

/* Safari/Chrome 的 <summary> 默认三角，用自绘箭头替代 */
.dx-cate-nav .dx-cate-group__head::-webkit-details-marker {
    display: none;
}

.dx-cate-nav .dx-cate-group__head:hover {
    color: #fff;
}

.dx-cate-nav .dx-cate-group__count {
    font-size: 11px;
    font-weight: 400;
    color: var(--dx-font2-color);
}

.dx-cate-nav .dx-cate-group__arrow {
    width: 14px;
    height: 14px;
    margin-left: auto;
    fill: currentColor;
    transition: transform 0.2s;
}

.dx-cate-nav .dx-cate-group[open] .dx-cate-group__arrow {
    transform: rotate(180deg);
}

.dx-cate-nav .dx-cate-item {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    /* 左边 16px 与分组标题对齐，再缩进 14px 体现从属层级 */
    padding: 5px 16px 5px 30px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--dx-font1-color);
    border-left: 2px solid transparent;
}

.dx-cate-nav .dx-cate-item:hover {
    color: var(--dx-primary-color);
    background-color: var(--dx-base2-color);
}

.dx-cate-nav .dx-cate-item.is-active {
    font-weight: 600;
    color: var(--dx-primary-color);
    background-color: var(--dx-base2-color);
    border-left-color: var(--dx-primary-color);
}