.banner {
    padding-top: 100px;
    width: 100%;
}

.banner>img {
    width: 100%;
    display: block;
}

.case-container {
    width: 1634px;
    margin: 0 auto;
    padding-top: 30px;
    padding-bottom: 60px;
}

.case-type {
    display: flex;
    font-size: 16px;
    color: #1a1a1a;
    height: 45px;
    line-height: 45px;
    margin-top: 10px;
}

.case-type>div {
    font-weight: bold;
}

.case-type>ul {
    margin-left: 30px;
    display: flex;
}

.case-type>ul>li {
    margin: 0 20px;
    cursor: pointer;
    transition: all 1s;
    -moz-transition: all 1s;
    -webkit-transition: all 1s;
    -o-transition: all 1s;
    -ms-transition: all 1s;
}

.case-type>ul>li:hover {
    color: #298EC6;
}

.case-type>ul>li.active {
    color: #298EC6;
    /*border-bottom: 2px solid #298EC6; */
    position: relative;
}

.case-type>ul>li.active::before {
    content: '';
    height: 2px;
    width: 24px;
    background-color: #298EC6;
    position: absolute;
    left: 50%;
    bottom: 0px;
    transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
}

.case-type>ul>li.active::before,
.case-type>ul>li.active::after {
    content: '';
    height: 2px;
    background-color: #298EC6;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -webkit-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
}

.case-type>ul>li.active::before {
    width: 24px;
    bottom: 0px;
}

.case-type>ul>li.active::after {
    width: 10px;
    bottom: -5px;
}

.case-type>ul>li.on {
    color: #298EC6;
}

.case-content {
    width: 1634px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
}

.case-item {
    width: 386px;
    height: 310px;
    margin-top: 30px;
    cursor: pointer;
    position: relative;
    margin-right: 30px;
    box-shadow: 0px 0px 1px 0px #ccc;
}

.case-item:nth-child(4n) {
    margin-right: 0px;
}

.case-item .case-top {
    width: 386px;
    height: 240px;
    position: relative;
}

.case-item-img {
    width: 386px;
    height: 240px;
    display: block;
    background-color: #f2f2f2;
}

.case-item .case-top::after {
    content: '';
    width: 386px;
    height: 0px;
    background: rgba(41, 142, 198, 0.85);
    position: absolute;
    top: 0;
    left: 0;
    transition: all 1s;
    -moz-transition: all 1s;
    -webkit-transition: all 1s;
    -o-transition: all 1s;
    -ms-transition: all 1s;
}

.case-item:hover {
    box-shadow: 0px 0px 15px 0px rgba(0, 0, 0, 0.2);
}

.case-item:hover .case-top::after {
    height: 240px;
}

.case-item-title-box {
    height: 70px;
    background-color: #fff;
    padding: 0 20px;
}

.case-item-title {
    height: 70px;
    background-image: url('../images/icon/case-arrow-blank.png');
    background-size: 41px 14px;
    background-position: center right;
    background-repeat: no-repeat;
    font-size: 18px;
    color: #333;
    font-weight: bold;
    line-height: 70px;
    transition: all 1s;
    -moz-transition: all 1s;
    -webkit-transition: all 1s;
    -o-transition: all 1s;
    -ms-transition: all 1s;
}

.case-item-info {
    width: 327px;
    font-size: 14px;
    line-height: 26px;
    color: #fff;
    position: absolute;
    left: 50%;
    top: 60px;
    margin-left: -163px;
    opacity: 0;
    white-space: pre-wrap;
}

.case-item:hover .case-item-img::after {
    height: 240px;
}

.case-item:hover .case-item-title {
    color: #298EC6;
    background-image: url('../images/icon/case-arrow-blue.png');
}

.case-item:hover .case-item-info {
    opacity: 1;
    transition: all 1s ease 0.5s;
    -moz-transition: all 1s ease 0.5s;
    -webkit-transition: all 1s ease 0.5s;
    -o-transition: all 1s ease 0.5s;
    -ms-transition: all 1s ease 0.5s;
}

.see-all {
    width: 110px;
    display: flex;
    align-items: center;
    font-size: 18px;
    color: #1a1a1a;
    margin: 0 auto;
    margin-top: 70px;
    padding-bottom: 45px;
    cursor: pointer;
}

.see-all>img {
    width: 26px;
    height: 6px;
    display: block;
    margin-left: 10px;
}

.see-all:hover {
    color: #298EC6;
}

@media screen and (max-width:1634px) {
    .case-container {
        width: 1218px;
    }
    .case-content {
        width: 1218px;
    }
    .case-item:nth-child(4n) {
        margin-right: 30px;
    }
    .case-item:nth-child(3n) {
        margin-right: 0px;
    }
}

.mypage {
    margin-top: 64px;
    text-align: center;
}