body {
    font-family: "Arial", "Microsoft YaHei", "PingFangTC-Medium", sans-serif;
    font-weight: normal;
    background: #FFFFFF;
    color: #3e3e3e;
}

.KV {
    background-image: url(../images/KV_PC.jpg);
    min-height: 760px;
}

.logo {
    width: 164px;
    padding-top: 1rem;
    display: block;
}

h2 {
    position: relative;
}

h2::after {
    content: "";
    display: block;
    background-color: #4BCBDF;
    height: 4px;
    width: 148px;
}

h2.text-center::after {
    margin: 0 auto;
}

.s-gray {
    background: #F5F5F5;
}

.s-black {
    position: relative;
    background: #3e3e3e;
    background-image: url(../images/Triangle.svg);
    background-position: top;
    background-repeat: no-repeat;
}

.item {
    margin: 1rem 0 1.5rem 0;
}

.card {
    background-color: rgba(255, 255, 255, 0);
    padding: 0.5rem;
}


/* side-button */

.side-button {
    position: fixed;
    /* right: 0;
    top: 16px; */
}

.side-button a {
    position: relative;
    display: block;
}

.intro {
    font-size: 1.25rem;
}

.contact {
    background-color: #3e3e3e;
    text-align: center;
    color: #FFF;
    font-size: 1.5rem;
}

.contact h3 {
    font-size: 1.85rem;
}

.c-contact__tel {
    max-width: 427px;
    margin: 24px auto 16px auto;
}

@media (max-width:1440px) {
    .KV {
        min-height: 640px;
    }
}

@media (max-width:1024px) {
    .KV {
        min-height: 576px;
    }
}

@media (max-width: 767px) {
    .KV {
        min-height: 400px;
    }
    /* side-button */
    .side-button {
        position: fixed;
        text-align: center;
        bottom: 0;
        width: 100%;
        max-height: 3.6rem;
        padding: 0.5rem;
        background-color: #3e3e3e;
    }
    .side-button a {
        float: left;
        width: 50%;
    }
}

@media (max-width: 576px) {
    .KV {
        background-image: url(../images/KV_Mobile.jpg);
        min-height: 300px;
    }
    .logo {
        width: 100px;
        padding-top: 0.5rem;
    }
    .intro {
        font-size: 1rem;
    }
}

@media (max-width: 414px) {
    .KV {
        min-height: 280px;
    }
}

@media (max-width: 320px) {
    .KV {
        min-height: 240px;
    }
}

@media (min-width: 768px) {
    .side-button {
        right: 0;
        top: 16px;
    }
}