/*超大屏幕*/
@media screen and (min-width: 1900px) {
    .page_bg {
        height: 600px;
        background-size: 100% 600px;
    }
}


/*大屏幕*/
@media screen and (min-width: 769px) {
    .page_bg {
        height: 450px;
        background-size: 100% 450px;
    }

    .detail_container, .div_intro_1, .div_intro_2 {
        margin-top:40px;
    }

    .detail_container .content p {
        color: #717171;
        margin-bottom: 20px;
        line-height: 30px;
    }
    
    .intro_img img {
        width: 100%;
    }

    .div_intro_1 .div_strategy {
        margin-bottom: 60px;
        letter-spacing: 2px;
    }

    .div_intro_1 .div_strategy .div_title {
        font-size: 20px;
        color: #00269a;
        font-weight: bold;
    }

    .div_intro_1 .div_strategy .div_hr {
        width: 50%;
    }

    .div_intro_1 .div_strategy .div_hr hr {
        background-color: #00269a;
        border: none;
        height: 1px;
        opacity: .8;
    }

    .div_intro_1 .div_strategy .div_content {
        color: #717171;
    }

    .div_intro_2 img {
        max-width: 24px;
    }

    .div_intro_2 .div_strategy {
        margin-bottom: 60px;
    }

    .div_intro_2 .div_strategy .div_title {
        font-size: 16px;
        color: #00269a;
        letter-spacing: 1px;
        font-weight: bold;
    }

    .div_intro_2 .div_strategy .div_content {
        margin-top: 6px;
        color: #717171;
    }

    .div_intro_2 .div_strategy .div_content p {
        margin: 0;
    }

    .col-md-6:nth-child(2n+1){
        clear:left!important;
    }
}