.center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.right {
    display: flex;
    align-items: center;
    justify-content: right;
}

.space_between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.space_around {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.column {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-direction: column;
}

.flex_wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.pc {
    display: block ! important;
}

.sj {
    display: none ! important;
}

@media (max-width: 750px) {
    .pc {
        display: none ! important;
    }

    .sj {
        display: block ! important;
    }
}

li {
    cursor: pointer;
    list-style: none;
}

p {
    cursor: pointer;
}

span {
    cursor: pointer;
}

.header {
    width: 100%;
    opacity: 1;
}

::-webkit-scrollbar {
    width: 7px;
    /* 设置滚动条的宽度为5px */
}

/* 设置滚动条轨道的样式 */
::-webkit-scrollbar-track {
    background: #f1f1f1;
    /* 设置轨道的背景颜色 */
}

/* 设置滚动条的样式 */
::-webkit-scrollbar-thumb {
    border-radius: 20px;
    background: #999;
    /* 设置滚动条的背景颜色 */
}

/* 设置当鼠标悬停在滚动条上时的样式 */
::-webkit-scrollbar-thumb:hover {
    background: #999;
    /* 设置滚动条悬停时的背景颜色 */
}


/* 菜单栏 */
/* 手机端背景图 */
/* #header-mobile-background {
    background-image: url("/images/");
    background-size: cover;
    height: 300px; 
    width: 100%;
} */

.index-header-nav {
    overflow-y: auto;
  -webkit-overflow-scrolling: touch;
    background: #B91B21;
    width: 100%;
    /* background: linear-gradient(180deg, rgba(185, 27, 33, 1) 0%, rgba(185, 27, 33, 0.69) 100%); */
    height: 100vh;
    /* position: fixed; */
   
    box-sizing: border-box;
    padding: 43px 26px 0px 30px;
}

.index-header-nav-btn a {
    font-weight: bold;
    font-size: 20px;
    color: #ffffff;
    
}

.index-header-nav>.index-header-nav-li {
    margin-top: 15px;
    font-size: 16px;
    color: #FFFFFF;
    font-weight: bold;
}

.special_line {
    margin-top: 8px;
    width: 100%;
    height: 1px;
    position: relative;
    background-color: #ffffff;
}

.index-header-nav-btns {
    opacity: 0.8;
    line-height: 30px;
    margin-top: 10px;
    font-weight: 400;
    font-size: 13px;
    color: #FFFFFF;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 3px;
}

.index-header-btn {
    margin-top: 8px;
    margin-left: -4px;
    position: fixed;
    top: 0;
    z-index: 999;
    width: 100%;
}

.index-header-nav-btns a {
    color: #ffffff;
}

#menu_btn{
    width: 40px;
    height: 45px;
    border: 1px solid #fff;
   /* background-color: #B91B21; */
    padding: 9px;
    box-sizing: border-box;
}
#menu_btn>.menu{
    font-size: 12px;
    color: #fff;
    cursor: pointer;
    /* margin: 10px auto 0; */
    text-align: center;
    font-weight: bold;
}
#btn_nav {
    display: block;
    background-color: rgba(0, 0, 0, 0);
    overflow: visible;
    position: relative;
    width: 34px ;
    height: 28px;
    /* margin: 9px; */
    margin: 0 auto;
}

#btn_nav>div {
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: #fff;
    display: block;
    top: 50%;
    margin-top: -1px;
    transition: all .3s ease;

}

#btn_nav>div::before {
    content: "";
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: block;
    position: absolute;
    top: -6px;
    transition: all .3s ease;
}
#btn_nav>div::after {
    content: "";
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: block;
    position: absolute;
    top: 6px;
    transition: all .3s ease;
}

#btn_nav.active>div {
    background: none ;
}
#btn_nav.active>div::before {
    top: 0;
    transform: rotate(45deg);
    transition: all .3s ease;
}
#btn_nav.active>div::after {
    top: 0;

    transform: rotate(-45deg);
    transition: all .3s ease;

}
.slider_wrap{
    width: 100%;
    height: 100%;
    background: none;
    position: fixed;
    top: 0;
    display: flex;
    justify-content: right;
    right: -100%;
    top: 0;
    transition: all .3s linear;
}
@media (max-width: 1400px) and (min-width: 1280px) {
    body {
        zoom: 63% !important;
    }
}

@media (max-width: 1700px) and (min-width: 1500px) {
    body {
        zoom: 78% !important;
    }
}