html,body{
    font-family: Arial, "微軟正黑體", "Microsoft JhengHei", sans-serif;
    background-color: #ffffff;
    font-size: 16px;
}
/*
.navbar{
    position: fixed;
    top: 0;
    width: 100%;
} */

.main-top-bg{
    background-image: url(../img/bn-des-top.jpg);
    background-size: cover;
    background-position: center;
    height: 80vh;
}
.main-bottom-bg{
    background-image: url(../img/bn-bottom-2.jpg);
    background-size: cover;
    background-position: center;
}

.footer{
    height: 45px;
    box-sizing: border-box;
    position: relative;
    bottom: 0;
    max-width: 100vw;
    width: 100%;
}
.copyright{
    line-height: 1.8;
    display:-webkit-box;
    display:-ms-flexbox;
    display:flex;
    -webkit-box-pack:center;
    -ms-flex-pack:center;
    justify-content:center;
    -webkit-box-align:center;
    -ms-flex-align:center;
    align-items:center;
    height:45px;
    background-color:#212121;
    font-size:12px;
    font-family:inherit;
    font-weight:300;
    color:#fff;
    text-align:center;
}

.hr--transparent-10 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 10px;
}
.hr--transparent-20 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 20px;
}
.hr--transparent-40 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 40px;
}
.hr--transparent-60 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 60px;
}
.hr--transparent-80 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 80px;
}
.hr--transparent-100 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 100px;
}
.hr--transparent-120 {
    margin: 0;
    border: 0;
    height: 1px;
    background-color: transparent;
    color: transparent;
    height: 120px;
}

/* fonts size */
.hiyes-font--1{
    font-size: 3.5rem;
}
.hiyes-font--2{
    font-size: 2.5rem;
}
.hiyes-font--3{
    font-size: 2rem;
}


/* color style */
.color-1{
    color: #5f91c2;
}
.color-2{
    color: #ffffff;
}
.color-3{
    color: #818181;
}
.color-4{
    color: #bb2221;
}

/* button style */
.hiyes-btn{
    display: inline-block;
    min-width: 10rem;
    max-width: 100%;
    padding: 10px 30px;
    margin: 5px 10px;
    font-size: 24px;
    border-radius: 50px;
    border: 1px solid #5f91c2;
    width: 22%;
}
.hiyes-btn--color1{
    background-color: transparent;
    color: #5f91c2;
}
.hiyes-btn--color1:hover{
    text-decoration: none;
    color: #5682ac;
}

.main-title{
    text-align: center;
    /* padding-top: 3%; */
}
.main-title > img{
    height: 160px;
    display: block;
    margin: auto;
}
.main-subcontent{
    font-size: 1.75rem;
}


.main-content h3{
    font-size: 1.75rem;
    color: #5f91c2;
}

.main-content .subcontent{
    font-size: 1.3rem;
    padding-left: 5%;
}

.rightsidetext{
    padding-top: 3%;
}


/* card */
#qalist{
    font-size: 1.3rem;
}
.card{
    border: transparent;
}
.card-link {
    color: #5f91c2;
}
.card-header a:hover{
    text-decoration: none;
    color: #5f91c2;
}


@media screen and (max-width: 992px) {
    .main-top-bg{
        background-image: url(../img/bn-des-top_mob.jpg);
        background-size: cover;
        background-position: center;
        height: 70vh;
    }

    /* fonts size */
    .hiyes-font--1{
        font-size: 30px;
    }
    .hiyes-font--2{
        font-size: 30px;
    }
    .hiyes-font--3{
        font-size: 24px;
    }

    /* button */
    .hiyes-btn{
        font-size: 1.2rem;
        border-radius: 50px;
        width: auto;
    }
    .main-title{
        padding-top: 20%;
    }
    
    .main-title > img{
        height: 100px;
    }
    .main-content{
        font-size: 1rem;
    }
    .main-content h3{
        font-size: 1.3rem;
    }
    
    .main-content .subcontent{
        font-size: 1.2rem;
        padding-left: 2%;
    }
    .main-subcontent{
        font-size: 1.25rem;
    }

    .rightsidetext{
        text-align: center;
    }

    /* card */
    #qalist{
        font-size: 1.2rem;
    }   
}

@media screen and (min-width:576px) and (max-width:768px){
    .main-top-bg{
        background-image: url(../img/bn-des-top.jpg);
    }
    .main-title{
        padding-top: 10%;
    }
    .main-title > img{
        height: 120px;
    }
    .rightsidetext{
        text-align: left;
    }

    /* fonts size */
    .hiyes-font--1{
        font-size: 40px;
    }
}


@media screen and (max-width: 360px) {
    .main-top-bg{
        height: 75vh;
    }
    
    .hiyes-font--1{
        font-size: 30px;
    }
    .hiyes-font--2{
        font-size: 22px;
    }
    .footer{
        height: 50px;
    }
    .copyright{
        height: 50px;
        line-height: 1.2;
    }
}