.intro-block1 {padding: .5rem 0;background: transparent url("intro_bg1.jpg") repeat-y top center;background-size: cover}
.intro-block2 {padding: 1rem 0;background-color: #d5e9fd}
.intro-block3 {padding: .5rem 0;background-color: #fff}
.intro-block4 {padding: .5rem 0;background: transparent url("travel.jpg") repeat-y top right;background-size: cover}
/*标题*/
.title-big{padding:1rem 0;text-align: center}
.title-big h4{height: 2.5rem;margin:0;line-height:2.5rem;font-size: 1.5rem;color: #056ace}
.title-big h4:before, .title-big h4:after {content:"";display:inline-block;position:relative;width: 5rem;height:2px;margin: 0 .5rem;top: -5px;background-color: #056ace}
.title-big p {padding: 0;margin:0;line-height:1.5rem;color: #999;font-size: .85rem;text-transform: uppercase}

.intro-block1 .video {padding: .5rem  0;height: 12rem}
.intro-block1 .video video {width: 100%;height:100%}
.intro-block1 .desc {padding: .6rem;line-height: 1.75;font-size: .7rem;text-indent: 2em;text-align: justify}
/*按钮组*/
.btn-group {padding: 0;margin: 0;list-style: none outside none}
.btn-group::after {content: "";display: table;height: 0;clear: both}
.btn-group li {min-height: 2rem;max-width: 100%;padding: 0;text-align: center}
.btn-group a {display: block}
.btn-group.group-img {padding: 0}
.group-img li {float: left;width: 50%;height: 8rem}
.group-img li a {position: relative;margin: 1rem;height: 6rem;font-size: .75rem;border-radius: 100%;background-size: 6rem}
.group-img li a span {position: absolute;display: block;width: 100%;top: 50%;transform: translateY(-50%);text-align: center;text-shadow: 1px 1px 1px #fff, -1px -1px 1px #fff}
.btn-bg1 {background: transparent url("round1.png") no-repeat center}
.btn-bg2 {background: transparent url("round2.png") no-repeat center}
.btn-bg3 {background: transparent url("round3.png") no-repeat center}
.btn-bg4 {background: transparent url("round4.png") no-repeat center}
.btn-bg5 {background: transparent url("round5.png") no-repeat center}
/*图片列表*/
.list.list-travel {padding: 0;margin:0;list-style: none outside none}
.list-travel:before, .list-travel:after {content: "";display: table;height: 0;clear: both}
.list-travel li {float:left;width: 50%;height: 8rem;padding:0;margin:0;position: relative}
.list-travel li a {display: block;width: 100%;height:100%}
.list-travel li img {width:100%;height: 100%;object-fit: cover}
.list-travel li em {position: absolute;display: inline-block;padding:0 .25rem;height: 2.5rem;width: 2.5rem;margin:auto;z-index: 10;line-height: 2.5rem;top: .75rem;right: .75rem;border-radius: 100%;background-color: rgba(255,255,255,.6);text-align:center;font-size: 1.5rem;font-style: normal;font-weight: bold}
.list-travel a:link, .list-travel a:visited, .list-travel a:active {color: #333}
.list-travel a:hover {color: #f60}