/*  reset  */
body,div,p,ul,li,table,tbody,tr,td,textarea,form,input,h1,h2,h3,h4,h5,h6,dl,dt,dd,img,iframe,header,nav,section,article,footer,figure,figcaption,menu,iframe {
    margin: 0;
    padding: 0;
    list-style: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

img {
    border: 0;
    display: block;
}

em,i,s,b,th {
    font-style: inherit;
    font-weight: inherit;
    text-decoration: none;
}

ol,ul {
    list-style: none;
}

input,textarea,select {
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
}

*,*:before,*:after {
    word-break: break-all;
    outline: none;
    box-sizing: border-box;
    -ms-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

input {
    user-select: auto;
    -ms-user-select: auto;
    -moz-user-select: auto;
    -webkit-user-select: auto;
}

a {
    text-decoration: none;
    tap-highlight-color: transparent;
    -webkit-tap-highlight-color: transparent;
}

a,li,ul,div,[onclick] {
    -webkit-tap-highlight-color: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}

body {
    font-family: -apple-system,BlinkMacSystemFont,Helvetica Neue,Helvetica,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;
}

@font-face {
    font-family: "SOURCEHANSERIFCN-BOLD";
    src: url(../font/SOURCEHANSERIFCN-BOLD.ttf);
}

/* comm */
html,body {
    width: 100%;
    height: 100%;
    /* height: auto; */
}

body {
    position: relative;
    background: #fff;
    font-size: 0.14rem;
    line-height: 1;
    overflow-x: hidden;
    overflow-y: scroll;
    /* overflow: hidden; */
}

.main{
    width: 100%;
    height: 100%;
    max-width: 7.5rem;
    margin: 0 auto;
}

.main .con{
    width: 100%;
    height: 100%;
    position: relative;
}

.banner_vid_btn{
    position: absolute;
    bottom: 5.2rem;
    left: 50%;
    margin-left: -1rem;
}

.top_vid_btn {
    width: 2.2rem;
    aspect-ratio: 190 / 191;
    background: url(../img/impression/btn_playVid.png) center center no-repeat;
    background-size: 100% 100%;
    border: 0;
    cursor: pointer;
}

.btn_impList{
    width: 100%;
    position: absolute;
    bottom: 1.2rem;
    left: 0;
    display: flex
;
    margin: 0 auto;
    justify-content: center;
}

.btn_impList a{
    width: 3.4rem;
}

.pop_fixed {
    display: none;
    position: fixed;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 100;
}

/* pop_video */
.pop_v_cont{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex
;
    align-items: center;
    justify-content: center;
    z-index: 999;
    /* opacity: 0; */
    /* visibility: hidden; */
    transition: all 0.3s;
}
.pop_v_cont video{ width:100%;max-width: 7.5rem;height: auto;}

/* pop_down */
.pop_d_cont{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex
;
    align-items: center;
    justify-content: center;
    z-index: 999;
    /* opacity: 0; */
    /* visibility: hidden; */
    transition: all 0.3s;
}
.pop_d_cont > div{ width:100%;max-width: 7.5rem;height: auto;}

.pop_d_cont > div{
    width: 100%;
    aspect-ratio: 701 / 375;
    background: url(../img/impression/kuang_01.png) center center no-repeat;
    background-size: 100% 100%;
    position: relative;
    display: flex
    ;
        align-items: center;
}

.btn_close{
    position: absolute;
    width: 0.86rem;
    top: -0.2rem;
    right: 0.4rem;
}

.com_con{
    height: auto;
}

.com_con .cc_bottom .btn_list img {
    width: 2.1rem;
    cursor: pointer;
}

.con_bg{
    min-height: 100vh; /* 最小高度等于视口高度 */
    width: 100%;
    /* 核心背景属性 */
    background-image: url(../img/impression/bg_01.jpg); /* 替换成你的图片地址 */
    background-position: center center; /* 水平和垂直都居中 */
    background-size: cover; /* 覆盖容器，自动缩放并裁剪 */
    background-repeat: no-repeat; /* 不重复 */
    /* background-attachment: fixed; */

    /* width: 80%;
    margin: 0 auto;
    padding: 50px;
    color: white;
    text-align: center;
    background: url(../img/impression/bg_01.jpg) center center no-repeat;
    background-size: 100% 100%; */
}

/* .con_bg1{
    position: absolute;
    bottom: 0;
}
.con_bg2{
    position: absolute;
    top: 0;
} */