.help_bg {
    /*margin-top: 60px;*/
    height: 210px;
    background-color: #14cfa6;
    text-align: center;
}
.help_bg .nav-search {
    padding-top: 50px;
    position: relative;
    text-align: center;
}
.help_bg .nav-search h1{
    color: #fff;
    margin: 0;
}
.help_bg .nav-search .post_message {
    padding-right:5px ;
    text-decoration: underline;
    font-size: 16px;
    color: #fff;
    position: absolute;
    right: 15px;
    bottom: 4px;
    text-underline-offset: 4px;
}
.help_bg .search_box{
    text-align: center;
    font-size: 18px;
    line-height: 65px;
    padding-top: 10px;
    position: relative;
}

.help_bg .search_box .search_inp{
    width: 100%;
    line-height: 54px;
    border: none;
    text-indent: 1em;
    border-radius: 3px;
    /*overflow: hidden;*/
    padding-right: 80px;
}
.help_bg .search_box .search_btn{
    position: absolute;
    right: 20px;
    bottom: 10px;
    width: 64px;
    height: 44px;
    background: url(../image/start_icon.png) no-repeat center #14cfa6;
    border-radius: 3px;
    background-size: 22px auto;
}
.help_bg.simple {
    height: 56px;
}
.help_bg .go_back {
    height: 100%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-left: 10px;
    cursor: pointer;
}
.help_bg .go_back .back_icon{
    width: 30px;
    height: 30px;
    background: url(../image/go_back_white.svg) no-repeat center;
    background-size: 30px auto;
}

.crumbs_navs {
    line-height: 50px;
    color: #333;
    font-size: 12px;
}
.crumbs_navs a,
.crumbs_navs i,
.crumbs_navs span{
    color: #333;
}

.help_content {
    min-height: 400px;
}
.help_content .art-list .item {
    margin: 0 ;
    margin-bottom: 30px;
    background-color: #fafafa;
    border: 1px solid #eee;
    /*background: #fff;*/
    border-radius: 5px;
}
.help_content .art-list .item:hover {
    box-shadow: 0 0 10px 0 rgba(0,0,0,.1);
}
.help_content .art-list .item .art-item {
    padding: 15px 30px;
    color: #333;
}
.help_content .art-list .item .art-item .title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}
.help_content .art-list .item .art-item .intro {
/*    两行， 超出 。。。*/
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 14px;
    color: #666;
}
.help_content .art-list .item .art-item.hot-art{
    padding: 10px;
}
.help_content .art-list .item .art-item.hot-art .title {
    margin-bottom: 0;
}
.mtime {
    font-size: 12px;
    color: #999;
}
.help_content .art-content {
    margin-top: 30px;
    margin-bottom: 50px;
    width: 100%;
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}
.help_content .art-content img {
    max-width: 100%;
    height: auto!important;
}

.help_content .empty-tips {
    text-align: center;
    margin-top: 50px;
    font-size: 20px;
    color: #666;
}
.help_content .empty-tips .no-result-box{
    display: inline-block;
}
.help_content .empty-tips .no-result-box .no-result-btn{
    text-decoration: underline;
    cursor: pointer;
    text-underline-offset: 2px;
}
.useful-box {
    margin-top: 40px;
    padding-bottom: 30px;
}
.useful-row {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
}
.useful-title {
    font-size: 18px;
    color: #666;
    text-align: center;
}
.useful-row span {
    display: flex;
    align-items: center;
    color: #666;
    font-size: 14px;
    width: 40px;
    height: 40px;
    background: url("../image/useful.svg") no-repeat center;
    background-size: 40px 40px;
    cursor: pointer;
    margin: 0 20px;
}
.useful-row span.fill{
    background: url("../image/useful_fill.svg") no-repeat center;
    background-size: 40px 40px;
}
.useful-row .useless{
    /* 翻转背景图 */
    -webkit-transform: scaleY(-1); /* Safari 和 Chrome */
    -moz-transform: scaleY(-1); /* Firefox */
    -ms-transform: scaleY(-1); /* IE 9 */
    -o-transform: scaleY(-1); /* Opera */
    transform: scaleY(-1); /* 标准语法 */
}

/*media 412px*/
@media screen and (max-width: 400px) {
    .help_bg {
        height: 185px;
    }
    .help_content{
        min-height: 50px;
    }
    .help_bg .nav-search {
        padding-top: 30px;
    }
    .help_content .art-title {
        font-size: 24px;
    }

    .help-row {
        margin-top: 50px;
        display: flex;
        justify-content: center;
    }
    .help-row .open-help {
        padding: 10px 15px;
        font-size: 16px;
        background-color: #14cfa6;
        cursor: pointer;
        color: #fff;
        border-radius: 5px;
        margin-bottom: 30px;
    }

    .help_content .art-list .item.hot-art-item {
        margin-bottom: 15px;
    }

    .help_bg.in_window {
        height: 120px;
    }
    .help_bg.in_window .search_box {
        padding-top: 27px;
    }
    .help_bg.in_window .nav-search h1 {
        display: none;
    }
    .help_bg.in_window .nav-search {
        padding-top: 50px;
    }
    .help_content .art-list .item .art-item .title {
        font-size: 16px;
    }
    .help_content .art-list .item .art-item .title.hot-question {
        font-weight: 400;
    }

    .fixed-footer {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        /*z-index: 999;*/
        background-color: #fff;
    }
    .tools-bottom {
        height: 50px;
        text-align: center;
        line-height: 42px;
        border-top: 1px solid #eee;
        box-shadow: 0 0 14px #eee;
        display: flex;
        align-items: center;
        justify-content: flex-start;
    }
    .tools-bottom .tools-item {
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        margin-left: 15px;
        text-decoration: underline;
        text-underline-offset: 2px;
    }
    .tools-bottom .wx-icon{
        display: inline-block;
        width: 27px;
        height: 27px;
        background: url(../image/wechat02.png) no-repeat;
        background-size: contain;
        margin-right: 2px;
    }

    .chat-wx-box {
        width: 100%;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background-color: rgba(0, 0, 0,0.5);
        position: fixed;
        top: 0;
        left: 0;

    }
    .chat-wx {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .chat-wx .chat-wx-con {
        width: 80%;
        max-width: 250px;
        background: url(../image/chat-bottom-bg.png) no-repeat #fff;
        background-size: contain;
        text-align: center;
        display: flex;
        padding-bottom: 30px;
        border-radius: 10px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin-top: 23px;
        margin-bottom: 20px;
    }
    .chat-wx .chat-wx-con .chat-content-title {
        font-size: 18px;
        font-weight: 500;
        color: #ffffff;
        text-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
        padding-top: 20px;
    }
    .chat-wx .chat-wx-con .chat-content-qrcode {
        margin-top: 12px;
        box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1), 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
        border-radius: 10px;
        background-origin: content-box !important;
        padding: 20px !important;
        background-size: contain;
    }
    .chat-wx .chat-wx-con .chat-content-qrcode img {
        width: 150px;
        height: 150px;
        padding: 5px;
        border: 1px solid rgb(238, 238, 238);
        border-radius: 10px;
    }
    .chat-wx .chat-div-close {
        cursor: pointer;
    }
    .chat-wx  .chat-div-close img {
        width: 40px;
    }
}