.footPart{ background:url(./images/footPart.png) center no-repeat; background-size: cover; height: 108px; width: 100%; text-align: center;}
 .footPart h2{ font-size: 33px; line-height: 108px; color: #ebf1fe; letter-spacing: 7px; font-weight: 400;}
  .btn_shen{ padding: 10px 40px; border: 2px solid #fff; margin-left: 30px; color: #ebf1fe; border-radius: 2px;  background:none; cursor: pointer; font-size: 20px; letter-spacing:3px}
 .btn_shen:hover{  -webkit-animation: bounceOut 7s linear infinite;
	 animation: bounceOut 7s linear infinite; -moz-animation: bounceOut 7s linear infinite;}
.section-1 {
    /* padding-top: 80px; */
    background: url(./images/ai/section_1_bg.png) left top no-repeat;
    background-size: 100% 100%;
}
.section-1 .left, .section-1 .right {
    margin-top: 160px;
}
.section-1 .left .detail {
    display: block;
    margin-top: 50px;
    padding: 0 10px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 30px;
    color: #ffffff;
    background-color: rgba(255, 255, 255, .2);
    font-size: 16px;
}
.section-1 .left .detail label {
    display: inline-block;
    padding-left: 20px;
    padding-right: 37px;
    background:   url(./images/icon_goRg.png) right center no-repeat;
}
.section-1 .left .detail:hover {
    transform: scale(1.1);
    transition: all 0.3s;
}
.section-1 .right {
    margin-left: 30px;
    position: relative;
    margin-top: 100px;
}
.section-2, .section-3{
    padding: 60px 0;
}

.ai_item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-top: 60px;
}
.ai_item .right {
    margin-left: 40px;
}
.ai_item .title {
    line-height: 40px;
    font-size: 34px;
    font-weight: 400;
    color: #333333;
    margin-top: 20px;
}
.ai_item .sub-title {
    font-size: 18px;
    font-weight: 400;
    color: #999999;
    line-height: 30px;
    margin-top: 10px;
}

/* .big-img:hover {
    transform: scale(1.1);
    transition: all .2s;
} */