* {
 margin: 0;
 padding: 0;
}

body a {
 transition: 0.5s all;
}

html, body {
 font-size: 100%;
 font-family: 'Roboto Condensed', sans-serif;
}

body {
 background: #FFFFFF;
}

.slider {
 width: 100%;
 height: 990px;
 min-width: 1600px;
}

.rslides {
 position: relative;
 list-style: none;
 overflow: hidden;
 width: 100%;
 height: 100%;
 padding: 0;
 margin: 0;
}

.rslides li {
 -webkit-backface-visibility: hidden;
 position: relative;
 width: 100%;
 height: 100%;
}

.con {
 width: 100%;
 height: 100%;
 background: url('../images/world/1.jpg') no-repeat 0px 0px;
 background-size: cover;
 border: 1px solid gray;
}

.con1 {
 width: 100%;
 height: 100%;
 background: url('../images/world/2.jpg') no-repeat 0px 0px;
 background-size: cover;
 border: 1px solid gray;
}

.con2 {
 width: 100%;
 height: 100%;
 background: url('../images/world/3.jpg') no-repeat 0px 0px;
 background-size: cover;
 border: 1px solid gray;
}

.con3 {
 width: 100%;
 height: 100%;
 background: url('../images/world/4.jpg') no-repeat 0px 0px;
 background-size: cover;
 border: 1px solid gray;
}

.main_con {
 width: 700px;
 height: 450px;
 margin: 200px auto;
 position: relative;
}

.main_con h3 {
 color: white;
 font-family: "微软雅黑", serif;
 font-size: 400px;
 position: absolute;
 left: 200px;
 opacity: 0.5;
}

.main_con h4 {
 color: white;
 font-family: "微软雅黑", serif;
 font-size: 100px;
 position: absolute;
 top: 200px;
 left: 100px;
}

.main_con3 h4 {
 position: absolute;
 left: 200px;
!important;
}

/*-- 世界概况和世界风貌 --*/
.about_world, .face_world {
 position: relative;
}

.about_world_top, .face_world_top {
 position: absolute;
}

/*左侧字母*/
.about_world_top h3, .face_world_top h3 {
 color: rgba(153, 153, 153, 0.23);
 font-size: 26em;
 margin: 0;
 text-align: left;
 font-weight: 700;
 font-family: 'Open Sans', sans-serif;
 line-height: .9em;
}

/*about_world*/
.about_world_main {
 width: 100%;
 top: 0;
 padding: 4em 0;
}

.about_world_main_heading h2, .about_world_main_heading h3 {
 color: #000000;
 font-size: 3em;
 margin: 0;
 font-family: '微软雅黑', serif;
 text-align: center;
 text-transform: uppercase;
 letter-spacing: 5px;
}

.about_world_main_heading h3 {
 margin-bottom: 50px;
}

.about_world_info {
 margin: 4em 0 0 0;
}

.about_world_info p {
 font-family: "微软雅黑", serif;
 color: #999999;
 font-size: .9em;
 margin: 0 auto;
 line-height: 1.8em;
 width: 64%;
 text-align: center;
}

.about_world_grids {
 margin: 4em 0 0 0;
}

.about_world_grid {
 padding: 0;
 border-radius: 10px;
}

.about_world_grid img {
 width: 100%;
 border-radius: 10px;
 transition: all 1s;
}

.about_world_grid img:hover {
 transform: rotate(50deg);
}

/*-- face_world --*/
.grid {
 position: relative;
 clear: both;
 margin: 0 auto;
 max-width: 1000px;
 list-style: none;
 text-align: center;
}

.grid figure {
 position: relative;
 overflow: hidden;
 margin: 10px 0;
 height: auto;
 text-align: center;
 cursor: pointer;
 border: solid 7px #dbdbdb;
}

.grid figure img {
 position: relative;
 display: block;
 width: 100%;
 opacity: 0.8;
}

.grid figure figcaption {
 padding: 7em;
 color: #fff;
 text-transform: uppercase;
 font-size: 1.25em;
 -webkit-backface-visibility: hidden;
 backface-visibility: hidden;
}

.grid figure figcaption::before,
.grid figure figcaption::after {
 pointer-events: none;
}

.grid figure figcaption,
.grid figure figcaption > a {
 position: absolute;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
}

.grid figure figcaption > a {
 z-index: 1000;
 text-indent: 200%;
 white-space: nowrap;
 font-size: 0;
 opacity: 0;
}

.grid figure h3 {
 word-spacing: -0.15em;
 font-size: 1.5em;
 margin-top: 18%;
 color: #FFF;
 font-weight: 600;
}

.grid figure h2 span {
 font-weight: 800;
}

figure.effect img {
 opacity: 0.95;
 -webkit-transition: opacity 0.35s, -webkit-transform 0.35s;
 transition: opacity 0.35s, transform 0.35s;
 -webkit-transform: scale3d(1.05, 1.05, 1);
 transform: scale3d(1.05, 1.05, 1);
}

figure.effect figcaption::before {
 position: absolute;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
 background: rgba(0, 0, 0, 0.5);
 content: '';
 -webkit-transition: -webkit-transform 0.6s;
 transition: transform 0.6s;
 -webkit-transform: scale3d(1.9, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, -100%, 0);
 transform: scale3d(1.9, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, -100%, 0);
}


figure.effect:hover img {
 opacity: 0.6;
 -webkit-transform: scale3d(1, 1, 1);
 transform: scale3d(1, 1, 1);
}

figure.effect:hover figcaption::before {
 -webkit-transform: scale3d(1.9, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, 100%, 0);
 transform: scale3d(1.9, 1.4, 1) rotate3d(0, 0, 1, 45deg) translate3d(0, 100%, 0);
}

figure.effect:hover p {
 opacity: 1;
 -webkit-transition-delay: 0.1s;
 transition-delay: 0.1s;
}

/*-- 响应式 --*/
@media (max-width: 1080px) {
 .back {
 padding: 6em 1em 0;
 }

 .flip-container, .back {
 height: 308px;
 }
}

@media (max-width: 991px) {
 .about_world_info p {
 width: 75%;
 }

 .about_world_grid {
 float: left;
 width: 25%;
 }

 .face_world_grid {
 float: left;
 width: 50%;
 }
}

@media (max-width: 568px) {

 .about_world_info p {
 width: 85%;
 }

 .about_world_main_heading h2, .about_world_main_heading h3 {
 font-size: 2em;
 }

}

@media (max-width: 480px) {
 .about_world_top h3, .face_world_top h3 {
 font-size: 16em;
 }

 .about_world_main {
 padding: 2em 0;
 }
}

@media (max-width: 414px) {
 .about_world_grid {
 float: left;
 width: 50%;
 }
}

@media (max-width: 320px) {
 .about_world_main_heading h2, .about_world_main_heading h3 {
 font-size: 1.5em;
 }

 .about_world_info p {
 width: 100%;
 }

 .about_world_top h3, .face_world_top h3 {
 font-size: 8em;
 }

 .about_world_top h3, .face_world_top h3 {
 font-size: 9em;
 }
}