img {
    user-select: none;
    -webkit-user-drag: none;
}
h1,h2,h3,h4,h5,h6,b,strong{
    font-weight: 700;
}
body, div, span, p, a, b, strong, i, h1, h2, h3, h4, h5, h6, table, thead, tbody, tr, td, th, ul, li, ol, dl, dt, dd, mark {
    line-height: calc(1em + 10px);
}
.container {
    padding-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
}
@media (min-width: 768px) {
    .container {
        max-width: 730px;
    }
    body, div, span, p, a, b, strong, i, h1, h2, h3, h4, h5, h6, table, thead, tbody, tr, td, th, ul, li, ol, dl, dt, dd, mark {
        line-height: calc(1em + 10px);
    }
}
@media (min-width: 992px) {
    .container {
        max-width: 970px;
    }
}
@media (min-width: 1280px) {
    .container {
        max-width: 1210px;
    }
}
@media (min-width:1600px) {
    .container {
        max-width: 1320px;
    }
}

/* 切换图标的灰度 */
.svg-change-sys, .svg-change-sys, .svg-change-sys {
    opacity: 0.5;
} 
[data-sys="win"] .svg-change-sys[data-brand='win'] {
    opacity: 1; 
}
[data-sys="mac"] .svg-change-sys[data-brand='mac'] {
    opacity: 1; 
}
[data-sys="android"] .svg-change-sys[data-brand='android'] {
    opacity: 1; 
}
[data-sys="ios"] .svg-change-sys[data-brand='ios'] {
    opacity: 1; 
}
/* end 切换图标的灰度 */

/* 下拉菜单 */
.select-down-btn:hover .select-down-menu {
    display: block !important;
}
.select-down-btn:hover .select-down-menu:active {
    display: none !important;
}
.select-down-btn:hover [data-brand="down-arrow"] {
    transform: rotate(180deg);
}
/* end 下拉菜单 */

/* 手风琴 */
.collapse-item[aria-hidden="true"] [data-brand="down-arrow"] {
    transform: rotate(-180deg);
}
/* end 手风琴 */

/* ScrollBox */
.scroll-box {
    overflow: hidden;
}
.scroll-wrapper {
    display: flex;
    flex-wrap: nowrap;
    width: fit-content;
    -webkit-width: fit-content;
}
/* end ScrollBox */

/* tab */
.tab-nav {
    display: flex;
}
.tab-item {
    user-select: none;
}
/* end tab */