body {
    margin: 0px;
    padding: 0px;
    background-color: #f1f2f4;
    background-color: #f9fafc;
    background-image: linear-gradient(90deg, rgba(60, 10, 30, .04) 3%, transparent 0), linear-gradient(1turn, rgba(60, 10, 30, .04) 3%, transparent 0);
    background-size: 20px 20px;
}

.sbody {
    height: calc(100vh - 45px);
    box-sizing: border-box;
    width: 100%;
    overflow: auto;
    float: left;
}

.left_frm {
    width: calc(25%);

    float: left;
    overflow: auto;
    box-sizing: border-box;
    box-sizing: border-box;
    padding-top: 0px;
    margin: 0px 0px;
    transition:margin-left 1s,width 1s;
}

.left_body {
    width: 310px;
    height: calc(100vh - 61px);
    padding-top: 5px;
    float: left;
    background-color: #fff;

}

.right_frm {
    width: 75%;
    float: left;
    box-sizing: border-box;
    overflow: auto;
    height: calc(100vh - 60px);
    transition:width 1s;
}

.right_body {
    float: left;
    box-sizing: border-box;
}

.sub_left_frm {
    width: 920px;
    float: left;
    box-sizing: border-box;
    margin: 10px 20px 40px 20px;

}

.sub_left_body {
    width: 100%;
    float: left;
    box-sizing: border-box;
    box-shadow: 0 7px 8px -4px rgba(0, 0, 0, .2), 0 12px 17px 1px rgba(0, 0, 0, .14), 0 5px 24px 1px rgba(0, 0, 0, .12) !important;
    background-color: #fff;
    border-radius: 15px;
    min-height: calc(100vh - 150px);
}

.sub_right_frm {
    width: 270px;
    float: left;
    padding: 0px 20px;
    margin-left: 0px;
}

.footer {
    height: 70px;
    width: 100%;
    border-top: 1px solid #d9d9d9;
    color: #ccc;
    font-size: 11px;
    text-align: center;
    box-sizing: border-box;
    margin: 70px 0px 0px 0px;
    line-height: 40px;
}

.cata_url {
    width: 270px;
    height: 100%;
    box-sizing: border-box;
    display: block;
    font-size: 14px;
    letter-spacing: 1px;
    padding: 0px 0px 0px 0px;
    margin: auto;
    border-radius: 5px;
    box-sizing: border-box;
    margin-top: 10px;
    margin-bottom: 50px;
}

.cata_li_item {
    display: block;
    list-style: none;
    margin: 0px 0px 5px 0px;
    padding: 5px 0px 5px 5px;
    width: 100%;
    box-sizing: border-box;

    border-radius: 5px;

}

.cata_logue_head {
    height: 30px;
    margin: 0px 0px 0px 0px;
    width: 100%;
    background-color: #fff;
    background-color: #f6f7f9;

    /*background-color: #f6f7f9;*/
    /*background-color: #e8b1c4;*/
    box-sizing: border-box;
    color: #5a5a5a;
    color: #de0000;
    font-weight: bold;
}
.left_bnt{
    position: absolute;
    top:85px;
    left:0px;
    padding: 0px 5px;
    box-sizing: border-box;
    font-size: 13px;
    height: 30px;
    width: 310px;
    line-height: 30px;
    /*width: 310px;*/
    letter-spacing: 1px;
    text-align: left;
    user-select: none;
    transition: all 1s ,background-color 0.3s;
    z-index: 1005;
    /*transition: background-color 0s;*/
}
.left_bnt_2{
    height: 40px;
    line-height: 40px;
    width: 100px;
    top:55px;
    border: 1px solid #ccc;
    background-color:  #f9797f;;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    color: #fff;
}
.left_bnt_2:hover{
    background-color: #f57d7d !important;
}



.left_bnt:hover{
    cursor: pointer;
    background-color: #e2e3e5;
}

.cata_title_span {
    color: #4b4b4b;
    display: block;
    width: 100%;
    font-size: 17px;
    font-weight: bold;
    padding: 3px 0px;
    font-family: "Microsoft YaHei";
    letter-spacing: 2px;

}

.sub_cata_span {
    text-decoration: none;
    font-size: inherit;
    color: inherit;
    display: inline-block;
    width: calc(100% - 18px - 7px - 20px);
    /*height: 100%;*/
    /*font-family: 思源黑体;*/
    font-size: 13px;
    color: #5a5a5a;
    user-select: none;
    -webkit-user-drag: none;
    vertical-align: middle;
    letter-spacing: 1px;
    background-color: rgba(255, 121, 133, 0.19);
    background-color: rgba(255, 204, 37, 0.15);
    background-color: rgba(255, 255, 255, 0.45);
    border-radius: 3px;
    padding: 0px 10px 0px 20px;
    box-sizing: border-box;
}

.sub_cata_span:hover {
    color: #0066cc;
    color: #f9797f;
}

.sub_cata_url {
    width: 100%;
    box-sizing: border-box;
    display: block;
    font-size: 14px;
    letter-spacing: 1px;
    padding: 5px 0px 0px 10px;
    box-sizing: border-box;
    border-radius: 5px;

}

.sub_cata_li {
    list-style: none;
    display: block;
    margin: 0px;
    font-weight: normal;
    padding: 0px 0px 0px 0px;
    height: 30px;
    line-height: 30px;
    width: 100%;
    font-size: 15px;
    box-sizing: border-box;
    margin-bottom: 10px;

}

.sub_cata_li:hover {
    text-shadow: 0.1px 0.1px 0.1px;
    color: #000000;
}

.sub_cata_li_select::before {
    content: "✓ ";
    text-shadow: 0.1px 0.1px 0.1px;
    font-size: 20px;
    margin-left: -20px;
    color: black;
    color: #e43122;
    font-weight: bold;
}

.bread_crumb_frm {
    width: 100%;
    height: 35px;
    line-height: 35px;
    box-sizing: border-box;
    white-space: nowrap;
    overflow: auto;
    letter-spacing: 0px;
    background-color: #fff;
    /*background-color: rgba(246, 247, 249, 0.64);*/

}

/*------------------左导航栏---------------------------------*/
/*滚动条*/
.bread_crumb_frm::-webkit-scrollbar {
    width: 5px;
    height: 5px;
    box-sizing: border-box;
}

/*定义滚动条轨道 内阴影+圆角*/
.bread_crumb_frm::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px #ecedf0;
    background-color: #ecedf0;
    box-sizing: border-box;
}

/*定义滑块 内阴影+圆角*/
.bread_crumb_frm::-webkit-scrollbar-thumb {
    border-radius: 1px;
    -webkit-box-shadow: inset 0 0 6px #8fd2dc;
    background-color: rgba(188, 189, 193, 0.39);
    box-sizing: border-box;
}

/*滚动条里面的小方块，能向上向下移动（或向左向右移动）*/
.bread_crumb_frm::-webkit-scrollbar-corner {
    background-color: #ecedf0;
    box-sizing: border-box;
}

/*边角，即垂直滚动条和水平滚动条相交的地方*/

.bread_crumb_item {
    display: inline-block;
    color: #5a5a5a;
    /*color: #fff;*/
    /*color: #ffef76;*/
    font: 12px "Helvetica Neue", "微软雅黑", "Microsoft Yahei", Helvetica, Arial, sans-serif;
    font-style: italic;
}

.bread_crumb_item a {
    text-decoration: none;
    color: #5a5a5a;
    margin: 0px;
    /*color: #ffffb2;*/
    /*color: #fff;*/

}

.bread_crumb_item a:hover {
    text-decoration: underline;
}

.bread_crumb_split {
    font-size: 13px;
    margin: 0 -2px;
}

.crumb_icon {
    font-size: 17px !important;
    position: relative;
    top: 1px;
    margin-right: -2px;
}

little_box {
    width: 8px;
    height: 8px;
    background-color: #bcbe22;
    background-color: #bbb;
    display: inline-block;
    margin-right: 2px;
    position: relative;
    top: 0px;
}

/*文章目录*/

.cata1_ul {
    margin: 0px 0px 0px 0px;
    padding: 0px 0px 30px 0px;
    box-sizing: border-box;
    width: 310px;
    display: block;
    background-color: rgba(255, 255, 255, 0);
    height: calc(100% - 81px);
    overflow-y: auto;
    background: linear-gradient(rgba(255, 255, 255, 0.57), rgba(255, 255, 255, 0.32)) !important;
}

/*滚动条*/
.cata1_ul::-webkit-scrollbar {
    width: 8px;
    height: 7px;
    box-sizing: border-box;
}

/*定义滚动条轨道 内阴影+圆角*/
.cata1_ul::-webkit-scrollbar-track {
    /*-webkit-box-shadow: inset 0 0 6px #ecedf0;*/
    background-color: #ecedf0;
    box-sizing: border-box;
}

/*定义滑块 内阴影+圆角*/
.cata1_ul::-webkit-scrollbar-thumb {
    border-radius: 1px;
    /*-webkit-box-shadow: inset 0 0 6px #8fd2dc;*/
    background-color: rgba(188, 189, 193, 0.39);

    background-color: rgba(143, 210, 220, 0.42);
    box-sizing: border-box;
}

/*滚动条里面的小方块，能向上向下移动（或向左向右移动）*/
.cata1_ul::-webkit-scrollbar-corner {
    background-color: #ecedf0;
    box-sizing: border-box;
}

/*边角，即垂直滚动条和水平滚动条相交的地方*/

.cata2_ul {
    margin: 0px 0px 0px 0px;
    padding: 0px 0px 0px 5px;
    box-sizing: border-box;
    width: 100%;
}

.cata3_ul {
    margin: 0px 0px 0px 0px;
    padding: 0px 0px 0px 10px;
    box-sizing: border-box;
    width: 100%;
}

.cata1_li {
    list-style: none;
}

.cata2_li {
    list-style: none;
}

.text_li {
    list-style: none;
}

.cata1_span {
    display: block;
    padding: 0px 15px 0px 5px;
    height: 30px;
    line-height: 33px;
    color: #cf5659;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 1px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    letter-spacing: 1px;
    background-color: rgba(255, 255, 255, 0);
    color: #008000;
    color: #d14267;

}

.cata1_span:hover {
    cursor: pointer;
    user-select: none;
}

.cata1_span:before {
    content: " \e609";
    font-size: 11px !important;
    font-family: "iconfont" !important;
    font-style: normal;
    margin-right: 5px;
    font-weight: normal;
    color: #cf5659;
    -webkit-font-smoothing: antialiased;
    position: relative;
    top: -1px !important;
}

.cata2_span {
    display: block;
    font-size: 13px;
    color: inherit;
    color: #5a5a5a;
    color: rgba(0, 0, 0, 0.65);
    height: 30px;
    line-height: 30px;
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    padding: 0px 15px 0px 5px;
    box-sizing: border-box;
    letter-spacing: 1px;
    font-style: italic;
    user-select: none;
}

.text_li_a {
    text-decoration: none;
    white-space: nowrap;
    display: block;
    width: 100%;
    height: 100%;
    color: #2a2a2a;
    box-sizing: border-box;
}

.text_li_a:hover {
    background-color: #eee;

    color: #0066cc;
}

.text_li_a_select {
    color: #0066cc;
    text-shadow: 0.1px 0.1px 0.1px;
}

.text_li_title {
    display: block;
    height: 100%;
    line-height: 30px;
    padding-left: 7px;
    height: 32px;
    vertical-align: bottom;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    font-size: 13px;
}

.text_li_title:before {
    content: "\e6be";
    text-shadow: 0.1px 0.1px 0.1px;
    font-size: 18px;
    position: relative;
    font-family: "iconfont" !important;
    font-style: normal;
    color: rgba(90, 90, 90, 0.89);
    top: 2px !important;
    -webkit-font-smoothing: antialiased;
}

.vip_flag:after {
    content: "   \e649";
    text-shadow: 0.1px 0.1px 0.1px;
    font-size: 14px;
    font-family: "iconfont" !important;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
}

/*文章内容*/
.text_body {
    width: 100%;
    padding: 0px 40px 20px 40px;
    box-sizing: border-box;
    min-height: calc(100vh - 60px - 60px);

}

.text_info_frm {
    overflow: auto;
    overflow-y: hidden;
}

/*滚动条*/
.text_info_frm::-webkit-scrollbar {
    width: 5px;
    height: 7px;
    box-sizing: border-box;
}

/*定义滚动条轨道 内阴影+圆角*/
.text_info_frm::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px #ecedf0;
    background-color: #ecedf0;
    box-sizing: border-box;
}

/*定义滑块 内阴影+圆角*/
.text_info_frm::-webkit-scrollbar-thumb {
    border-radius: 1px;
    -webkit-box-shadow: inset 0 0 6px #8fd2dc;
    background-color: rgba(188, 189, 193, 0.39);
    box-sizing: border-box;
}

/*滚动条里面的小方块，能向上向下移动（或向左向右移动）*/
.text_info_frm::-webkit-scrollbar-corner {
    background-color: #ecedf0;
    box-sizing: border-box;
}

.text_info_body {
    padding: 0px;
    min-width: 600px;
}

.title_row {
    text-align: center;
    width: 100%;
    min-height: 30px;
}

.title_item {
    width: 650px;
    height: 30px;
    font-size: 22px !important;
    font-family: 粗体;
    font-weight: bold;
    letter-spacing: 3px;
    display: inline-block;
    line-height: 30px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    margin: 0px;
    padding: 15px 0px 0px 10px;
}

.text_info_row {
    width: 100%;
    padding-top: 5px;
    box-sizing: border-box;
    text-align: center;
    padding: 5px 0px 10px 0px;
    box-sizing: border-box;
    color: #5a5a5a;
}

.text_info_item {
    display: inline-block;
    height: 100%;
    padding: 0px 20px;
    font-size: 13px;
    vertical-align: bottom;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    text-align: left;
}

.line_row {
    width: 100%;
    border-bottom: 1px #ccc solid;
    margin-bottom: 8px;
}

.text_head_desc {
    background-color: #f7f7f7;
    border-left: 4px solid #ccc;
    padding: 10px 20px;
    box-sizing: border-box;
    line-height: 2;
    color: #4c4c4c;
}

.text_cnt_body {
    position: relative; /*必须加上，不然katex会刷出边界*/
    word-wrap: break-word;
}

.unlogin_tip {
    font-size: 25px;
    line-height: 40px;
    width: 280px;
    margin: auto;
    margin-top: calc(25% - 100px);
    text-align: center;
    color: #5a5a5a;
    background-color: rgba(248, 248, 248, 0.74);
    padding: 20px 20px 30px 20px;
    user-select: none;
    border-radius: 20px;
    letter-spacing: 3px;
    box-shadow: 0 0 0 1px #12376914, 0 1px 1px #1237690a, 0 3px 3px #12376908, 0 6px 4px #12376905, 0 11px 4px #12376903;
}

.text_login_span {
    color: red;
    user-select: none;
    text-decoration: underline;
}

/*-----------------VIP------------*/
.vip_bnt_frm {
    width: 100%;
    height: 50px;
    line-height: 50px;
    border-radius: 5px;
    color: #e44a5e;
    font-size: 15px;
    font-weight: bold;
}

.vip_bnt {
    text-decoration: none;
    white-space: nowrap;
    display: block;
    width: 100%;
    height: 100%;
    color: inherit;
    letter-spacing: 2px;
    box-sizing: border-box;

}

.vip_bnt_frm:hover {
    font-size: 19px;
    background-color: rgba(255, 128, 130, 0.84);
}

.text_login_span:hover {
    cursor: pointer;
}

.next_pre_frm {
    width: 100%;
    height: 50px;
    background: #f3f3f3;
    border-bottom: 1px solid #e0e0e0;
    padding: 0px 30px;
    box-sizing: border-box;
}

.pre_next_a {
    display: inline-block;
    padding: 10px 5px;
    box-sizing: border-box;
    text-decoration: none;
    font-size: 15px;
    color: #595959;

}

.pre_next_table {
    display: inline-block;
    font-size: 15px;
    color: #595959;
}

.pre_next_a:hover {
    color: rgba(213, 0, 0, 0.76);
    text-shadow: 0.1px 0.1px 1px #ccc;
}

.pre_text {
    margin-top: 5px;
    float: left;
}

.next_text {
    margin-top: 5px;
    float: right;
}

.sub_nav_pic {
    width: 15px;
    display: inline-block;
    vertical-align: middle;
    margin-right: -15px;
    z-index: 1000;
    position: relative;
}

.text_head {
    width: 100%;
    height: 70px;
    background: transparent;
    background: rgba(255, 255, 255, 0.17);
    text-align: center;
    vertical-align: middle;
    padding: 15px;
    box-sizing: border-box;
    margin: 0px 0px 10px 0px;
    border-radius: 5px;
    background: linear-gradient(-45deg, rgba(255, 255, 255, 0.17), rgba(255, 255, 255, 0.08));
    box-shadow: 0 0 0 1px #12376914, 0 1px 1px #1237690a, 0 3px 3px #12376908, 0 6px 4px #12376905, 0 11px 4px #12376903;

}

.brand_title {
    display: inline-block;
    color: #e86072;
    font-size: 22px;
    letter-spacing: 5px;
    line-height: 30px;
    vertical-align: middle;
    position: relative;
    padding-right: 50px;
    box-sizing: border-box;
    font-weight: bold;
}

.brand_title_img {
    display: inline-block;
    width: 70px;
    margin-right: 20px;
    vertical-align: middle;
}