.banner { width: 100%; position: relative; margin-top: 50px; overflow: hidden; }
.banner > img { width: 100%; min-height: 500px; }
.banner_content { position: absolute; left: 12.5%; top: calc(50% - 50px); width: 50%; color: white; text-transform: Uppercase; }
.banner_content h1 { font-family: "Montserrat-Medium"; font-size: 32px; margin-bottom: 30px; }
.banner_content span { display: block; font-family: "Montserrat-Medium"; font-size: 18px; margin-bottom: 30px; }
.banner_content .arrow { width: 20px; height: 40px; /*overflow: hidden;*/ position: relative; }
.banner_content .arrow img { width: 100%; position: absolute; top: 0; left: 0; animation: showHideDot 1.5s ease-in-out infinite; }

@keyframes showHideDot {
    0% { top: 0; }
    50% { top: 20%; }
    100% { top: 0; }
}

@media screen and (max-width:1220px) {
    .banner > img { width: auto; margin-left: calc(50% - 600px); height: 500px; }
    .banner_content h1 { font-size: 30px; margin-bottom: 30px; }
    .banner_content span { margin-bottom: 30px; }
}

@media screen and (max-width:890px) {
}

@media screen and (max-width:680px) {
    .banner_content { position: absolute; left: 12.5%; top: calc(35% - 50px); width: 75%; color: white; text-transform: Uppercase; }
    .banner_content h1 { font-size: 24px; margin-bottom: 20px; }
    .banner_content span { font-size: 16px; margin-bottom: 20px; }
    .banner_content .arrow { width: 10px; height: 40px; /*overflow: hidden;*/ position: relative; }
}













.contact { width: 75%; margin: 0 auto; margin-top: 30px; }
.contact_title { width: calc(45% - 100px); float: left; font-family: "Montserrat-Medium"; font-size: 32px; padding-right: 100px; text-align: right; color: white; }
.contact_content { float: left; width: calc(55% - 30px); padding-left: 30px; margin-top: 7px; margin-bottom: 40px; }
.contact_content_title { font-size: 16px; color: #eeeeee; margin-bottom: 20px; font-family: "SourceHanSansCN-Normal"; }
.contact_content_title span { font-family: "Montserrat-ExtraLight"; }
.contact_content_add { font-size: 14px; color: #eeeeee; line-height: 30px; margin-bottom: 20px; font-family: "SourceHanSansCN-Light"; }
.contact_content_add span { font-family: "Montserrat-ExtraLight"; }
.contact_content_ewm { width: 120px; margin-bottom: 50px; }
.contact_content_ewm img { width: 100%; }
.contact_content_line { width: 100px; height: 6px; background-color: #eeeeee; margin-bottom: 20px; }
.contact_content_en { font-size: 14px; color: #eeeeee; line-height: 24px; margin-bottom: 50px; font-family: "Montserrat-ExtraLight"; }
.contact_content_en span { font-family: "Montserrat-Medium"; }
.contact_content p { font-size: 14px; color: #eeeeee; line-height: 28px; /*margin-bottom: 30px;*/ font-family: "SourceHanSansCN-Light"; }
.contact_content img { margin: 10px 0; }
.contact_content p span { font-family: "Montserrat-ExtraLight"; }

@media (min-width: 750px) and (max-width: 1024px) {
    .contact_title { float: left; font-size: 28px; }
    .contact_content { margin-top: 6px; }
    .contact_content_title { font-size: 16px; margin-bottom: 20px; }
    .contact_content_add { font-size: 12px; line-height: 30px; margin-bottom: 20px; }
    .contact_content_ewm { width: 120px; margin-bottom: 50px; }
    .contact_content_line { width: 100px; height: 6px; margin-bottom: 20px; }
    .contact_content_en { font-size: 12px; line-height: 24px; margin-bottom: 50px; }
    .contact_content p { font-size: 12px; line-height: 24px; margin-bottom: 30px; }
}

@media (min-width: 500px) and (max-width: 750px) {
    .contact_title { float: left; font-size: 24px; width: 100%; text-align: left; }
    .contact_content { float: left; padding-left: 0; width: 100%; }
    .contact_content_title { font-size: 16px; margin-bottom: 20px; }
    .contact_content_add { font-size: 14px; line-height: 26px; margin-bottom: 20px; }
    .contact_content_ewm { width: 100px; margin-bottom: 50px; }
    .contact_content_line { width: 80px; height: 4px; margin-bottom: 20px; }
    .contact_content_en { font-size: 14px; line-height: 20px; margin-bottom: 50px; }
    .contact_content p { font-size: 12px; line-height: 22px; margin-bottom: 30px; }
}

@media (max-width: 550px) {
    .contact_title { float: left; font-size: 18px; width: 100%; text-align: left }
    .contact_content { float: left; width: 100%; margin-top: 6px; padding-left: 0; }
    .contact_content_title { font-size: 14px; margin-bottom: 20px; }
    .contact_content_add { font-size: 12px; line-height: 20px; margin-bottom: 20px; }
    .contact_content_ewm { width: 80px; margin-bottom: 50px; }
    .contact_content_line { width: 60px; height: 2px; margin-bottom: 20px; }
    .contact_content_en { font-size: 12px; line-height: 18px; margin-bottom: 50px; }
    .contact_content p { font-size: 10px; line-height: 16px; margin-bottom: 30px; }
}