body{
    margin: 0;
    padding: 0;
    min-width: 400px;
}

/* 默认字体大小 */
body {
font-size: 18px;
}

/* 当屏幕宽度小于600px时，应用小字体大小 */
@media screen and (max-width: 600px) {
body {
    font-size: 14px;
}
}

/*屏幕宽度小于600，地图高度缩到770*/
@media screen and (max-width: 600px) {
    #tab1 {
        height: 770px;
    }
    }

    /*屏幕宽度小于600，背景图高度不变*/
@media screen and (max-width: 600px) {
    .n1:hover {
        height: 200px !important;
    }
    }

/* 当屏幕宽度大于600px且小于1200px时，应用中等字体大小 */
@media screen and (min-width: 600px) and (max-width: 1200px) {
body {
    font-size: 18px;
}
}

/* 当屏幕宽度大于1200px时，应用大字体大小 */
@media screen and (min-width: 1200px) {
body {
    font-size: 20px;
}
}

/* 当屏幕宽度大于1200px时，应用大字体大小 */
@media screen and (min-width: 1000px) {
    .btn_all button:hover {
        background: rgba(73, 104, 206, 1);
    box-shadow: 0px 2px 5px #4968cb;
    }
    }


/* 滚动条样式*/
/* 自定义WebKit浏览器的滚动条 */
::-webkit-scrollbar {
    display: none;
}
  
.top{
    width: 100%;
    height: 60px;
    text-align: center;
    color: #474B4F;
    font-size: 20px;
    font-weight: 900;
    line-height: 60px;
    border-bottom: 2px solid #4968cb;
}

iframe {
    border: none;
}

.btn_all{
    position: fixed;
    z-index: 5;
    top: 50%;
    right: 20%;
}

.btn_all button{
    font-size: 14px;
    font-weight: 800;
    color: #ffffff;
    background:rgba(0, 0, 0, 0.6);
    float: right;
    margin: 0;
    padding: 0;
    width: 35px;
    height: 100px;
    border-radius: 30px;
    border: 1px solid #ffffff;
    box-shadow: 0px 2px 5px #474B4F;
    transition: background 0.5s,box-shadow 0.5s;
}

.allmap{
    width: 100%;
    height: 1000px;
    border: none;
    margin-bottom: 30px;
    overflow: hidden;
}

.bott{
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: center; 
    align-items: center; 
    font-size: 12px;
    color: #474B4F;
    border-top:6px solid #4968cb ;
}

.bott img{
    width: 12px;
    float: left;
    margin-top: 2px;
}

a{
    text-decoration: none;
    color: #474B4F;
}

p{  
    font-weight: bold;
    text-shadow: 2px 2px 4px #000;
    text-align: left;
    color: #ffffff;
}

.textp a{
    color: #ffffff;
    padding: 4px 15px 4px 15px;
    border-radius: 30px;
    background-color: #474B4F;
    box-shadow: 0px 2px 5px #474B4F;
    transition: background-color 0.5s,box-shadow 0.5s;
    font-size: 16px;
    border: 1px solid #ffffff;
}

.textp a:hover{       
    background-color: #4968cb;
    box-shadow: 0px 2px 5px #4968cb;
}

.n1{
    display: inline-block;
    width: 100%;
    height: 200px;
    border-bottom: 30px solid #ffffff;
    background-attachment: fixed;
    background-position: center;
    transition: height 1.5s;
    background-size: cover !important; 
}

.num{
    float: right;
    color: #ffffff;
    font-weight: 900;
    text-align: center;
    margin-top: 10px;
    width: 70px;
    height: 20px;
    font-size: 12px;
    line-height: 20px;
    background-color: #4968cb;
    border-radius: 10px 0px 0px 10px;
}

.n1:hover{
    height: 500px;
}

/*全景背景图*/
#no1{
    background: url(img/1.jpg) no-repeat; 
}

#no2{
    background: url(img/2.jpg) no-repeat;
}

#no4{
    background: url(img/4.jpg) no-repeat;
}

#no5{
    background: url(img/5.jpg) no-repeat;
}

#no7{
    background: url(img/7.jpg) no-repeat;
}

#no10{
    background: url(img/10.jpg) no-repeat;
}

#no13{
    background: url(img/13.jpg) no-repeat;
}

#no6{
    background: url(img/6.jpg) no-repeat;
}

#no8{
    background: url(img/8.jpg) no-repeat;
}

#no11{
    background: url(img/11.jpg) no-repeat;
}

#no15{
    background: url(img/15.jpg) no-repeat;
}

#no17-1{
    background: url(img/17-1.jpg) no-repeat;
}

#no17-2{
    background: url(img/17-2.jpg) no-repeat;
}

#no17-3{
    background: url(img/17-3.jpg) no-repeat;
}

#no17-4{
    background: url(img/17-4.jpg) no-repeat;
}


.mapview{
    display: inline-block;
    width: 20%;
    height: 100%;
    transition: width 0.5s;
    float: left;
    margin-right: 15px; 
    display: flex;
    justify-content: center; 
    align-items: center; 
    font-weight: bold;
    color: #000000;
    text-shadow: 2px 2px 4px #ffffff;
}

/*地图*/
#no1map{
    background: url(img/1map.jpg) no-repeat;
    background-position: center center;
}
#no2map{
    background: url(img/2map.jpg) no-repeat;
    background-position: center center;
}

#no4map{
    background: url(img/4map.jpg) no-repeat;
    background-position: center center;
}

#no5map{
    background: url(img/5map.jpg) no-repeat;
    background-position: center center;
}

#no7map{
    background: url(img/7map.jpg) no-repeat;
    background-position: center center;
}

#no10map{
    background: url(img/10map.jpg) no-repeat;
    background-position: center center;
}

#no13map{
    background: url(img/13map.jpg) no-repeat;
    background-position: center center;
}

#no6map{
    background: url(img/6map.jpg) no-repeat;
    background-position: center center;
}

#no8map{
    background: url(img/8map.jpg) no-repeat;
    background-position: center center;
}

#no11map{
    background: url(img/11map.jpg) no-repeat;
    background-position: center center;
}

#no15map{
    background: url(img/15map.jpg) no-repeat;
    background-position: center center;
}

#no17-1map{
    background: url(img/17-1map.jpg) no-repeat;
    background-position: center center;
}

#no17-2map{
    background: url(img/17-2map.jpg) no-repeat;
    background-position: center center;
}

#no17-3map{
    background: url(img/17-3map.jpg) no-repeat;
    background-position: center center;
}

#no17-4map{
    background: url(img/17-4map.jpg) no-repeat;
    background-position: center center;
}

.loc{
    display: inline-block;
    width: 80px;
    height: 80px;
    background: url(img/location1.png) no-repeat;
    background-size: 100%;
    transition: background 0.5s; 
}

/* 当屏幕宽度小于600px时，应用小字体大小 */
@media screen and (max-width: 600px) {
    .loc {
        width: 50px;
    }
    }

.n1 .mapview:hover .loc{
    background: url(img/location2.png) no-repeat;
    background-size: 100%;
}