@font-face {
    font-family: din;
    src: url(http://www.sefonsoft.com/public/resources/front/css/fonts/ARITA_HEITI_SUBFONT.otf) format('OpenType');
}
.guodu {
    transition: all 0.3s ease-out;
    -webkit-transition: all 0.3s ease-out;
}
.width1200 {
    width: 1200px;
    margin: 0 auto;
}
.case-title h4 {
    color: #333;
    font-size: 28px;
    font-weight: bold;
    line-height: 1;
    text-align: center;
    margin-bottom: 16px;
}
.case-title .line {
    width: 33px;
    height: 2px;
    background-color: #666;
    margin: 0 auto;
}
.case-background {
    background-color: #f6f8f9;
}
.case-background .case-title {
    padding: 30px 0;
}
.case-background .img {
    float: left;
    margin:0 0 15px 0;
}
.case-background .img img {
    display: block;
    width: 100%;
}
.case-background .text {
    float: right;
    width: 38%;
}
.case-background .text h6 {
    margin: 24px 0 1em 2em;
    color: #333;
    font-size: 22px;
    line-height: 1;
    font-weight: bold;
}
.case-background .text .con {
    width: 100%;
    margin-bottom: 50px;
}
.case-background .text p {
    color: #666;
    font-size: 15px;
    line-height: 24px;
}
.case-solve {
    padding: 0 0 44px;
}
.case-solve .case-title {
    padding: 30px 0;
}
.case-solve .items {
    width: 100%;
}
.case-planning {
    width: 100%;
}
.case-planning .case-title {
    padding: 30px 0 0;
}
.case-planning .case-title .line {
    margin-bottom: 18px;
}
.case-planning .content {
    padding-bottom: 20px;
    position: relative;
    overflow: hidden;
}
.case-planning .content .img {
    width: 100%;
}
.case-planning .content .img img {
    display: block;
    width: 100%;
}
.case-vlaue {
    padding: 0 0 79px;
}
.case-vlaue .case-title {
    padding: 30px 0;
}
.case-vlaue .items {
    width: 100%;
}
.case-vlaue .item {
    width: 100%;
    border: 1px solid #e5e5e5;
}
.case-vlaue .item .tit {
    width: 100%;
    padding: 29px 0 15px 32px;
    background-color: #f6f8f9;
    border: 1px solid #e5e5e5;
    border-bottom: none;
    position: relative;
    cursor: pointer;
}
.case-vlaue .item .tit .icon {
    float: left;
    width: 53px;
    height: 53px;
    margin-right: 25px;
}
@media screen and (max-width: 1279px) {
    .width1200 {
        width: 960px;
    }
    .case-title h4 {
        font-size: 24px;
    }
    .case-vlaue .item .tit .icon img {
        height: 100%;
    }
}
@media screen and (max-width: 960px) {
    .width1200 {
        width: 750px;
    }
    .case-background .text {
        float: none;
        width: 100%;
    }
    .case-vlaue .item .tit .icon img {
        height: 20px;
    }
}
@media screen and (max-width: 750px) {
    .width1200 {
        width: 100%;
        padding: 0 0.2rem;
        box-sizing: border-box;
        -webkit-box-sizing: border-box;
    }
    .case-background .text .con {
        margin-bottom: 0.3rem;
    }
    .case-solve .items {
        padding: 0 0 0.3rem;
    }
    .case-solve {
        padding: 0 0 0.3rem;
    }
    .case-vlaue .item .tit {
        padding-left: 0.2rem;
        padding-top: 0.3rem;
    }
    .case-vlaue .item .tit .icon {
        width: 0.6rem;
        height: 0.6rem;
    }
}