body {
    font: 14px/1.5 Microsoft Yahei;

    /*侧边导航栏宽度*/
    --l-size: 192px;

    /*字体大小*/
    --f-size-tiny: 12px;
    --f-size-small: 14px;
    --f-size-normal: 16px;
    --f-size-big: 18px;
    --f-size-huge: 20px;

    /*颜色*/
    --c-txt-main: #FFFFFF;
    --c-txt-asst: #a4a5a6;
    --c-txt-pink: #FF26EF;
    --c-txt-blue: #0661DC;
    --c-txt-yellow: #FFCA05;
    --c-txt-purpe: #6F46FA;

    /*背景色*/
    --c-bg-main: #101922;
    --c-bg-left: #1F2937;
    --c-bg-asst: #18212C;
    --c-bg-tip: #F94F30;

    /*按钮颜色*/
    --c-bt-blue: #0661DC;
    --c-bt-gary: #262e36;

    /*边框颜色*/
    --c-box-blue: #0661DC;
    --c-box-gray: #485669;

    /*弹窗颜色*/
    --c-bg-alert-m: #1F2937;
    --c-bg-alert-b: #161F2A;
    --c-bg-alert-l: #343d4b;
}

input:-moz-placeholder,
textarea:-moz-placeholder {
    color: var(--c-txt-main);
}

input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: var(--c-txt-main);
}

input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: var(--c-txt-main);
}

button {
    cursor: pointer;
    border: none;
    outline: none;
}

input,
label,
i,
span {
    vertical-align: middle;
}

input[type=text] {
    text-decoration: none;
    border: none;
    outline: none;
    border-radius: 3px;
    background-color: #1C2532;
    height: 24px;
    color: white;
    cursor: default;
    font-size: 12px;
}

.footer {
    display: block;
    position: absolute;
    z-index: 128;
    top: calc(100% - 30px);
    color: var(--c-txt-main);
}

.footer.l {
    font-size: var(--f-size-small);
}

.footer.r {
    right: 23px;
    font-size: var(--f-size-small);
}

.fleft {
    float: left;
}

.fright {
    float: right;
}

.left {
    display: flex;
    text-align: left;
    justify-content: flex-start;
}

.right {
    display: flex;
    text-align: right;
    justify-content: flex-end;
}

.center {
    text-align: center;
}

.between {
    display: flex;
    justify-content: space-between;
}

.clear {
    clear: both;
    overflow: hidden;
}

.tool {
    position: absolute;
    z-index: 999;
    top: 15px;
    right: 5px;
}

.img-tool {
    cursor: pointer;
    width: 16px;
    height: 16px;
    background-image: url(../img/tools.png);
    background-repeat: no-repeat;
    background-size: 48px 32px;
    display: inline-block;
    margin: 10px;
}

#min,
#max,
#close {
    position: relative;
}

.tool #min {
    background-position: 0 0;
}

.tool #max {
    background-position: -17px 0;
}

.tool #close {
    background-position: -33px 0;
}

.tool #min:hover {
    background-position: 0 -16px;
}

.tool #max:hover {
    background-position: -17px -16px;
}

.tool #close:hover {
    background-position: -33px -16px;
}

.layui-layer-content .install {
    text-align: left;
}

.line {
    height: 1px;
    background: var(--c-bg-left);
}

/*
滚动条样式
*/
::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 7px;
    /*高宽分别对应横竖滚动条的尺寸*/
    height: 4px;
    scrollbar-arrow-color: red;
}

::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius: 3px;
    -webkit-box-shadow: inset 0 0 5px rgba(31, 41, 55, 0.8);
    background: rgba(31, 41, 55, 0.8);
    scrollbar-arrow-color: red;
}

::-webkit-scrollbar-track {
    /*滚动条里面轨道 101922 */
    -webkit-box-shadow: inset 0 0 5px transparent;
    border-radius: 0;
    background: transparent;
    border-radius: 3px;
}

/*
滚动条样式
*/
input[type=checkbox] {
    visibility: hidden;
}

input[type=checkbox]:after {
    position: relative;
    display: block;
    content: " ";
    width: 12px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0);
    color: #fff;
    visibility: visible;
    border: 1px solid #BE21E3;
}

input[type=checkbox]:checked:after {
    content: "✔";
    width: 12px;
    height: 12px;
    text-align: center;
    vertical-align: middle;
    font-size: 10px;
    line-height: 12px;
    color: #BE21E3;
}