.sec1 {
    padding: 100px 0 50px;
}
.sec1 .flex {
    width: 1680px;
    margin: auto;
    flex-wrap: wrap;
}
.sec1 .flex .item {
    width: 530px;
    display: block;
    margin-bottom: 66px;
}
.sec1 .flex .item:not(:nth-child(3n)) {
    margin-right: 45px;
}
.sec1 .flex .item .img {
    overflow: hidden;
}
.sec1 .flex .item .img img {
    display: block;
    width: 100%;
    transition: 3s;
}
.sec1 .flex .item:hover .img img {
    transform: scale(1.1);
}
.sec1 .flex .item .text {
    width: 100%;
    height: 240px;
    background: #F5F5F5;
    padding: 35px 30px 50px;
    transition: 0.4s;
}
.sec1 .flex .item .text .time {
    font-size: 16px;
    font-weight: normal;
    color: #00A5A9;
    line-height: 1;
    transition: 0.4s;
}
.sec1 .flex .item .text h2 {
    font-size: 22px;
    font-weight: 400;
    color: #000000;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 19px 0 30px;
    transition: 0.4s;
}
.sec1 .flex .item .text .content {
    font-size: 16px;
    font-weight: 300;
    color: #333333;
    line-height: 32px;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: 0.4s;
}
.sec1 .flex .item:hover .text {
    background: #00A5A9;
}
.sec1 .flex .item:hover .time,.sec1 .flex .item:hover .text .content, .sec1 .flex .item:hover .text h2 {
    color: #FFFFFF;
}
.sec1 .page {
    margin: 30px 0 50px;
}
@media screen and (max-width: 1700px) {
    .sec1 .flex {
        width: 90%;
    }
    .sec1 .flex .item {
        width: 32%;
    }
    .sec1 .flex .item:not(:nth-child(3n)) {
        margin-right: 2%;
    }
    .sec1 .flex .item .text h2 {
        font-size: 20px;
    }
    .sec1 .flex .item .text .content {
        font-size: 14px;
        line-height: 2;
    }
    .sec1 .flex .item .text .time {
        font-size: 14px;
    }
}
@media screen and (max-width: 1600px) {

}
@media screen and (max-width: 1400px) {
    .sec1 .flex .item .text h2 {
        font-size: 18px;
        margin: 15px 0 20px;
    }
    .sec1 .flex .item .text .content {
        line-height: 1.6;
    }
    .sec1 .flex .item .text {
        height: 180px;
        padding: 30px 30px 50px;
    }
    .sec1 {
        padding: 80px 0 50px;
    }
}
@media screen and (max-width: 1024px) {
    .sec1 .flex .item .text h2 {
        font-size: 16px;
        margin: 15px 0;
    }
    .sec1 .flex .item .text .time,.sec1 .flex .item .text .content {
        font-size: 12px;
    }
    .sec1 .flex .item .text {
        height: 165px;
        padding: 30px 20px 50px;
    }
}
@media screen and (max-width: 768px) {
    .sec1 .flex .item {
        width: 100%;
    }
    .sec1 .flex .item:not(:nth-child(3n)) {
        margin-right: 0;
    }
    .sec1 {
        padding: 60px 0 40px;
    }
    .sec1 .flex .item {
        margin-bottom: 40px;
    }
}