body {
    font-size: 16px;
    line-height: 30px;
    font-family: "微軟正黑體";
    color: #333;
}

.pro4_mainBg {
    width: 100%;
    float: left;
    min-width: 1200px;
    padding: 0;
    background: url(../images/p4_mainBg.jpg) center bottom repeat-x;
}

.pro4_main {
    width: 1200px;
    margin: 0 auto;
    padding: 15px 0;
}

.pro4_main p {
    margin: 10px 0;
}

.pro4_main .tit {
    font-weight: bold;
    font-size: 20px;
    color: #333333;
    margin-bottom: 5px;
}

.pro4_main .tit img {
    vertical-align: middle;
    margin-right: 5px;
}

.pro4_main .left {
    width: 630px;
    float: left;
    padding: 0 20px 0 0;
}

.pro4_main .right {
    width: 550px;
    float: left;
    background: url(../images/p4_slid_bg.png) center bottom 5px no-repeat;
    min-height: 452px;
    padding: 18px 0 0 0;
}

.pro4_btn {
    margin-left: 10px;
    border: 1px solid #a80717;
    padding: .7rem;
    font-size: 1rem;
}

.pro4_btn:hover {
    background-color: #a80717;
    color: #fff;
}
.p4_img{
    display: flex;
    justify-content: center;
}
.p4_img img{
    width: 30%;
}
@media screen and (min-width: 768px) and (max-width: 1024px) {
    .pro4_mainBg {
        min-width: 1000px;
        padding: 0;
    }
    .pro4_main {
        width: 970px;
        padding: 0 15px;
    }
    .pro4_main .left {
        width: 400px;
    }
    .pro4_main .right {
        width: 550px;
        margin-top: 30px;
    }
}

@media screen and (min-width: 320px) and (max-width: 768px) {
    .pro4_mainBg {
        min-width: 320px;
    }
    .pro4_main {
        width: 90%;
        padding: 0 5%;
    }
    .pro4_main .left {
        width: 100%;
        padding: 0;
    }
    .pro4_main .right {
        width: 100%;
    }
}