html {
    font-size: 14px;
    overflow-x: hidden;
}
li {
    list-style: none;
}
a {
    color: #212529
}
a:hover {
    text-decoration: none;
}
p, dl, dt, dd, ul {
    margin: 0px;
    padding: 0px;
}
.lh-1 {
    line-height: 1;
}
.lh-2 {
    line-height: 2;
}
.lh-3 {
    line-height: 3;
}
.lh-4 {
    line-height: 4;
}
.fs-12 {
    font-size: .857rem;
}
.fs-14 {
    font-size: 1rem;
}
.fs-16 {
    font-size: 1.142rem;
}
.fs-18 {
    font-size: 1.285rem;
}
.fs-20 {
    font-size: 1.428rem;
}
.fs-22 {
    font-size: 1.571rem;
}
.fs-24 {
    font-size: 1.714rem;
}
.fs-26 {
    font-size: 1.857rem;
}
.fs-28 {
    font-size: 2rem;
}
.fs-30 {
    font-size: 2.142rem;
}
.mt-6, .my-6 {
    margin-top: 4rem !important;
}
.mt-7, .my-7 {
    margin-top: 5rem !important;
}
.mt-8, .my-8 {
    margin-top: 6rem !important;
}
.mt-9, .my-9 {
    margin-top: 7rem !important;
}
.mt-10, .my-10 {
    margin-top: 8rem !important;
}
.mb-6, .my-6 {
    margin-bottom: 4rem !important;
}
.mb-7, .my-7 {
    margin-bottom: 5rem !important;
}
.mb-8, .my-8 {
    margin-bottom: 6rem !important;
}
.mb-9, .my-9 {
    margin-bottom: 7rem !important;
}
.mb-10, .my-10 {
    margin-bottom: 8rem !important;
}
.pt-6, .mp-6 {
    padding-top: 4rem !important;
}
.pt-7, .py-7 {
    padding-top: 5rem !important;
}
.pt-8, .py-8 {
    padding-top: 6rem !important;
}
.pt-9, .py-9 {
    padding-top: 7rem !important;
}
.pt-10, .py-10 {
    padding-top: 8rem !important;
}
.pb-6, .py-6 {
    padding-bottom: 4rem !important;
}
.pb-7, .py-7 {
    padding-bottom: 5rem !important;
}
.pb-8, .py-8 {
    padding-bottom: 6rem !important;
}
.pb-9, .py-9 {
    padding-bottom: 7rem !important;
}
.pb-10, .py-10 {
    padding-bottom: 8rem !important;
}
.h-5px {
    height: 5px;
}
.h-10px {
    height: 10px;
}
.h-15px {
    height: 15px;
}
.h-20px {
    height: 20px;
}
.h-25px {
    height: 25px;
}
.h-30px {
    height: 30px;
}
.h-35px {
    height: 35px;
}
.h-40px {
    height: 40px;
}
.h-45px {
    height: 45px;
}
.h-50px {
    height: 50px;
}
.h-55px {
    height: 55px;
}
.h-60px {
    height: 60px;
}
.h-65px {
    height: 65px;
}
.h-70px {
    height: 70px;
}
.h-75px {
    height: 75px;
}
.h-80px {
    height: 80px;
}
.h-85px {
    height: 85px;
}
.h-90px {
    height: 90px;
}
.h-95px {
    height: 95px;
}
.h-100px {
    height: 100px;
}
.h-110px {
    height: 110px;
}
.h-120px {
    height: 120px;
}
.h-130px {
    height: 130px;
}
.h-140px {
    height: 140px;
}
.h-150px {
    height: 150px;
}
.h-160px {
    height: 160px;
}
.h-170px {
    height: 170px;
}
.h-180px {
    height: 180px;
}
.h-190px {
    height: 190px;
}
.h-200px {
    height: 200px;
}
.h-250px {
    height: 250px;
}
.h-300px {
    height: 300px;
}
.h-350px {
    height: 350px;
}
.h-400px {
    height: 400px;
}
.h-450px {
    height: 450px;
}
.h-500px {
    height: 500px;
}
.border-top-dashed {
    border-top: 1px dashed #dee2e6 !important;
}
.border-right-dashed {
    border-right: 1px dashed #dee2e6 !important;
}
.border-bottom-dashed {
    border-bottom: 1px dashed #dee2e6 !important;
}
.border-right-dashed {
    border-top: 1px dashed #dee2e6 !important;
}
.navbar-expand-lg .navbar-nav .nav-link {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
    font-size: 14px;
}
.navbar-brand {
    font-size: 20px;
    padding-top: 0px;
    padding-bottom: 0px;
}
.shadow-sm-top {
    box-shadow: 0 -.125rem .25rem rgba(0,0,0,.075) !important;
}
.card, .figure {
    margin: 15px 0;
}

@media only screen and (min-width: 576px) {
    .card-img-200 {
        height: 200px;
        overflow: hidden;
    }
    .card-img-180 {
        height: 180px;
        overflow: hidden;
    }
    .card-img-150 {
        height: 150px;
        overflow: hidden;
    }
    .card-img-120 {
        height: 120px;
        overflow: hidden;
    }
    .card-img-100 {
        height: 100px;
        overflow: hidden;
    }
}

.ls-1 {
    letter-spacing: 1px;
}
.ls-2 {
    letter-spacing: 2px;
}
.ls-3 {
    letter-spacing: 3px;
}
.ls-4 {
    letter-spacing: 4px;
}
.ls-5 {
    letter-spacing: 5px;
}
.text-secondary a {
    color: #6c757d;
}
.code,.code img {
    height: 100px;
}
.pages {
    min-height: 500px;
    padding-top: 10px;
    padding-bottom: 10px;
}
.position, .position a {
    color: #999;
}
.page-num:not(:disabled) {
    cursor: pointer;
}
.page-num, .page-link {
    position: relative;
    display: block;
    padding: .5rem .75rem;
    margin-left: -1px;
    line-height: 1.25;
    color: #17a2b8;
    background-color: #fff;
    border: 1px solid #dee2e6;
}
a.page-num:hover, .page-link:hover {
    text-decoration: none;
}
.page-num-current {
    z-index: 1;
    color: #fff;
    background-color: #17a2b8;
    border-color: #17a2b8;
}
.page-num-current:hover {
    color: #fff;
}

@media only screen and (max-width: 768px) {
    .page-num {
        display: none;
    }
    .logo-sm-height{
        height: 40px;
    }
    .head-sm-height{
        height: 61px !important;
    }
}
.content {
    color: #666;
    line-height: 2;
}
.content img, .content iframe {
    max-width: 100% !important;
}
.content li{
    list-style:disc outside none;
    margin-left:20px;
}

.view {
    max-width: 500px;
}
.view .swiper-slide {
    height: 300px;
    max-width: 500px;
    padding: 0 3px;
    box-sizing: border-box;
    overflow: hidden;
    text-align: center;
}
.view .swiper-slide img {
    height: 100%;
}
.view .arrow-left {
    background: url(../images/index_tab_l.png) no-repeat left center;
    position: absolute;
    left: 10px;
    width: 28px;
    height: 300px;
    z-index: 10;
    display: none;
}
.view .arrow-right {
    background: url(../images/index_tab_r.png) no-repeat right center;
    position: absolute;
    right: 10px;
    width: 28px;
    height: 300px;
    z-index: 10;
    display: none;
}
.preview {
    position: relative;
    width: 440px;
    left: 30px;
}
.preview .swiper-slide {
    width: 87.5px;
    height: 70px;
    margin: 0 3px;
    box-sizing: border-box;
    overflow: hidden;
    cursor: pointer;
}
.preview .swiper-slide img {
    display: inline-block;
    height: 100%;
}
.preview .active-nav {
    border: 1px solid #F00;
}
.preview .arrow-left {
    background: #fff url(../images/feel3.png) no-repeat left center;
    position: absolute;
    left: -20px;
    top: 0;
    width: 20px;
    height: 70px;
    z-index: 10;
}
.preview .arrow-right {
    background: #fff url(../images/feel4.png) no-repeat right center;
    position: absolute;
    right: -20px;
    top: 0;
    width: 20px;
    height: 70px;
    z-index: 10;
}

@media only screen and (max-width: 750px) {
    .view .swiper-slide {
        height: 200px;
    }
    .preview {
        display: none;
    }
    .view .arrow-left, .view .arrow-right {
        height: 200px;
        display: block;
    }
    .topnav.clearfix{
    display: none;
    }
    }
.online {
    position: fixed;
    bottom: 150px;
    right: 10px;
    width: 60px;
    z-index: 999;
    color: #999;
}
.online a {
    color: #666;
}
.online a:hover {
    text-decoration: none;
}
.online dl {
    background: #27a8e1;
    padding: 10px 5px;
    margin-bottom: 1px;
    position: relative;
}
.online dl dd {
    color: #fff;
    text-align: center;
    font-size: 12px;
    cursor: pointer;
}
.online dl dd i {
    font-size: 25px;
}
.online dl:hover {
    background: #1781bd;
}
.online dl dt {
    position: absolute;
    top: 0px;
    right: 60px;
    background: #fff;
    border: 1px solid #ccc;
    z-index: 9999;
    display: none;
    padding: 10px 15px;
    font-weight: normal;
}
.online dl dt h3 {
    display: block;
    font-size: 16px;
    color: #666;
    border-bottom: 1px solid #ccc;
    padding-bottom: 5px;
}
.online dl dt h3 i {
    margin-right: 5px;
}
.online dl dt h3 span {
    float: right;
    cursor: pointer;
}
.online dl dt input {
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-top: 15px;
    height: 40px;
    line-height: 40px;
    padding: 3px 5px;
    width: 100%;
}
.online dl dt button {
    margin: 10px 0;
    border: none;
    border-radius: 5px;
    width: 100%;
    font-size: 18px;
    height: 40px;
    line-height: 40px;
    background: #28a7e1;
    color: #fff;
    cursor: pointer;
}
pre{
    font: .875rem/1.5 Consolas,monaco,monospace;
    -moz-tab-size: 4;
    tab-size: 4;
    overflow: auto;
    padding: 10px;
    border-radius: 3px;
    background: #171A27;
    border: none;
    color: #FFF;
}


.bd-callout {
    padding: 1.25rem;
    margin-top: 1.25rem;
    margin-bottom: 1.25rem;
    border: 1px solid #eee;
    border-left-width: .25rem;
    border-radius: .25rem;
}
.bd-callout h4 {
    margin-top: 0;
    margin-bottom: .25rem;
}
.bd-callout p:last-child {
    margin-bottom: 0;
}
.bd-callout code {
    border-radius: .25rem;
}
.bd-callout + .bd-callout {
    margin-top: -.25rem;
}
.bd-callout-info {
    border-left-color: #5bc0de;
}
.bd-callout-info h4 {
    color: #5bc0de;
}
.bd-callout-warning {
    border-left-color: #ffc107;
}
.bd-callout-warning h4 {
    color: #ffc107;
}
.bd-callout-danger {
    border-left-color: #d9534f;
}
.bd-callout-danger h4 {
    color: #d9534f;
}
.nav-pills .nav-link.active, .nav-pills .show > .nav-link{background: #25b9e4;}