/* 公共样式表css */
html,body {
    color: #000000;
    margin: 0;
    height: 100%;
    font-size: 14px;
    font-family: "Source Han Sans CN","Helvetica Neue",Helvetica,Arial,Verdana,sans-serif;
}
/** 视口=500px时,使用该样式*/

 

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: #000;
}

img {
    border: 0;
}

body {
    background: #F5F5F7;
    color: #333;
}

html, body, div, dl, dt, dd, ol, ul, li, h1, h2, h3, h4, h5, h6, p, blockquote, pre, button, fieldset, form, input, legend, textarea, th, td {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
    color: #08acee;
}

button {
    outline: 0;
}

img {
    border: 0;
}

button,input,optgroup,select,textarea {
    margin: 0;
    font: inherit;
    color: inherit;
    outline: none;
}

li {
    list-style: none;
}

a {
    color: #666;
}

a:hover {
    color: #eee;
}

.clearfix::after {
    clear: both;
    content: ".";
    display: block;
    height: 0;
    visibility: hidden;
}

/* .clearfix {
} */
.wrap{
    width: 1200px;
    margin: 0 auto;
}
/* 首页 */
.idx_bg{
    background: url(../images/bg01.png) no-repeat #060b1f center top;
    background-size: contain;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.idx_tit{
    position: absolute;
    left: 50%;
    top: 20px;
    transform: translateX(-188px);
    width: 376px;
    height: 58px;
}
.idx_cont{
    margin-top: 181px;
    display: flex;
    align-items: center;
    width: 100%;
    justify-content: center;
}
.idx_md{
    width: 100%;
/*    height: 297px;*/
}
/* .idx_item:nth-child(3) .idx_md{
    width: 340px;
    height: 340px;
} */
.idx_item{
    position: relative;
    width: 18%;
}
.idx_item3{
    position: relative;
    width: 24%;
}
.idx_md3{
    width: 100%;
/*    height: 340px;*/
}
.idx_ul{
    width: 97%;
    display: none;
    position: absolute;
    left: 6px;
    top: 103%;
    z-index: 11;
    
}

.idx_li{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 70px;
    line-height: 70px;
    margin-bottom: 16px;
}
.idx_li a{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 70px;
    line-height: 70px;
    background: url(../images/lin01.png) no-repeat center top;
    background-size: cover;
    margin-bottom: 16px;
    font-weight: 400;
    font-size: 28px;
    line-height: 41px;
    text-align: left;
    font-style: normal;
    color: #90B8F1;

}
.idx_ra{
    width: 8px;
    height: 8px;
    margin-right: 18px;
}


/* .idx_item:hover{
    .idx_ul{
        display: block;
    }
} */
.idx_tx{
    position: absolute;
    top: 100% !important;
    left: 50%;
    transform: translateX(-300px);
}
.idx_bg02{
    width: 630px;
    height: 480px;
}
.idx_item_in{
    display: block;
    width: 100%;
}

/* iframe容器样式 */
.iframe-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 1000;
}

.iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 返回按钮样式 */
.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    cursor: pointer;
    z-index: 1001;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-button:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    border-left: 2px solid #666;
    border-bottom: 2px solid #666;
    transform: translate(-25%, -50%) rotate(45deg);
}


@media screen and (max-width: 768px) {
    /* 在此处设置maxWidth的样式 */
    .idx_ul{
        top: 80px;
    }
    .idx_li{
        width: auto;
        height: auto;
        line-height: auto;
        margin-bottom: 10px;
    }
    .idx_li a{
        white-space: nowrap;
        width: auto;
        height: auto;
        line-height: auto;
        margin-bottom: 0;
        font-size: 14px;
        padding-right: 6px;
    }
    .idx_ul4{
        left: auto;
        right: 0;
    }
    .idx_ra{
        margin-right: 4px;
    }
}