.page-title{
    font-size: 1.8rem;
    line-height: 25px;
    color: #333333;
    letter-spacing: 0.2em;
    text-align: center;
    margin: 30px 14px;
    font-weight: bold;
}
.bottom-line{
    margin: 5px auto 30px auto;
    height: 2px;
    background-color: #279ACE;
}
.bottom-line::after{
    display: inline-block;
    content: "";
    width:0;
    height:0;
    border-width:17px 17px 0;
    border-style:solid;
    border-color:#279ACE transparent transparent;/*灰 透明 透明 */
}
.img{
    margin: 24px 14px;
}
.subtitle{
    position: relative;
    margin: 30px 14px;
    font-size: 1.6rem;
    font-weight: bold;
    background-color: #279ACE;
    color: #ffffff;
    padding: 2.5px 0px 2.5px 50px;
    text-align: center;
    border-top-left-radius: 50px;
    border-bottom-left-radius: 50px;
}
.subtitle::before{
    display: inline-block;
    width: 42px;
    height: 42px;
    background-color: #279ACE;
    content: "";
    position: absolute;
    left: 5px;
    top: 6px;
    transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
    -webkit-box-shadow: 1px -1px 5px #333,-6px 6px 0px #FFFFFF;
    box-shadow: 1px -1px 5px #333,-6px 6px 0px #FFFFFF;
}
.subtitle .num{
    position: absolute;
    width: 40px;
    text-align: center;
    line-height: 50px;
    font-size: 2rem;
    left: 5px;
}
.subtitle .title{
    line-height: 25px;
}
.text{
    margin: 12px 14px;
    text-indent: 2em;
    text-align: justify;
}
.subtitle-2{
    margin: 12px 14px;
    color: #005bac;
    font-weight: bold;
}
.img-warper{
    margin: 24px 14px;
}
.img-title{
    color: #42646D;
    line-height: 30px;
    font-size: 1.3rem;
}
.txt-center{
    text-align: center;
}
.img-grid{
    margin: 24px 14px;
    font-size: 0px;
}
.img-grid .img-item{
    display: inline-block;
    width: 50%;
    padding: 0px 4px 8px 4px;
}