.logo {
    display: block;
}

.header-menu {
    width: auto;
    float: right;
}

.header-menu li {
    margin-right: 40px;
}

.banner {
    background: url(../img/about-banner.png);
    background-size: cover;
}

.about-us,
.service,
.certificate {
    position: relative;
    width: 100%;
    background: #fff;
}

.about-us {
    margin-top: 80px;
    padding: 92px 0 82px;
}

.about-us .about-1 {
    display: inline-flex;
}

.about-us .about-1 img {
    padding: 0 7px;
    width: 100%;
}

.about-us .about-2 {
    display: flex;
    margin-top: 13px;
}

.about-2>div {
    position: relative;
    width: 50%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.about-2>div:first-of-type {
    margin-right: 36px;
}

.about-2>div:last-of-type {
    margin-left: 36px;
}

.about-2>div img {
    margin-bottom: 37px;
    padding: 0 7px;
}

.about-2>div>p {
    font-size: 14px;
    color: #666666;
    margin-bottom: 37px;
    font-weight: normal;
    line-height: 25px;
}

.about-2>div>p:first-of-type,
.about-2>div>p:nth-of-type(2) {
    text-transform: uppercase;
    font-weight: bold;
    line-height: 24px;
}

.about-3 {
    display: flex;
    flex-direction: column;
    margin-top: 70px;
}

.about-3 p {
    font-size: 18px;
    color: #666666;
    font-weight: bold;
    line-height: 31px;
}

.about-3>div {
    display: inline-flex;
    flex-wrap: wrap;
    align-content: center;
    justify-content: center;
    align-items: center;
    text-align: center;
    margin-top: 15px;
}

.about-3>div>div {
    width: calc(100%/3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-3>div>div p {
    text-align: center;
    padding: 0 60px;
    line-height: 22px;
}

.about-3>div>div>img {
    width: fit-content;
    margin: 19px 0 12px;
}

.service {
    margin-top: 57px;
    padding: 66px 0 95px;
}

.service p {
    font-size: 18px;
    color: #666666;
    width: 100%;
    font-weight: bold;
}

.service .service-item {
    position: relative;
    width: 100%;
    display: flex;
    margin-top: 80px;
}

.service-item .s-right img {
    width: 100%;
}

.service-item .s-left {
    position: relative;
    width: 80%;
    display: flex;
    flex-direction: column;
    margin-left: -15px;
}

.service-item .s-left .s-txt {
    display: flex;
    border-bottom: 1px solid #e7e7e7;
    padding: 34px 0 0 0;
    align-items: center;
}

.service-item .s-left .s-txt:last-of-type {
    border: 0;
}

.service-item .s-left .s-txt p {
    width: 80%;
    font-family: SansSC-Medium;
    font-weight: normal;
    line-height: 31px;
}

.s-txt .s-img {
    display: flex;
    width: 20%;
    justify-content: center;
}

.s-right {
    width: 50%;
    margin-left: 68px;
}

.certificate {
    margin: 63px 0 90px;
    padding: 56px 0 90px;
}

.certificate .mySwiper4 {
    margin-top: 41px;
}

.swiper-wrapper {
    display: flex;
    box-sizing: content-box;
    align-items: center;
}

.mySwiper4 .swiper-slide {
    display: flex;
    overflow: hidden;
    background-color: #efefef;
    justify-content: center;
}

.swiper-button-next_4:after {
    content: "next";
}

.swiper-button-prev_4:after {
    content: "prev";
}

.swiper-button-next_4 {
    position: absolute;
    color: #99263f;
    top: calc(50% - -10px);
    right: calc((100%/5) - 205px);
    z-index: 1;
    transition: all 0.3s ease-in;
}

.swiper-button-prev_4 {
    position: absolute;
    color: #99263f;
    top: calc(50% - -10px);
    left: calc((100%/5) - 205px);
    z-index: 1;
    transition: all 0.3s ease-in;
}

.certificate .swiper-slide a {
    overflow: hidden;
    transition: all .3s ease-out;
}

.certificate .swiper-slide>div {
    display: flex;
    height: 201px;
    flex-wrap: nowrap;
    align-content: center;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: all .3s ease-out;
}

.certificate .swiper-slide>a:hover {
    transform: scale(1.1);
}

.slide-img>img {
    width: 100%;
    padding: 25px;
}

.ion-close-circled:before {
    content: "\f128";
    position: absolute;
    top: 0px;
    right: 0px;
    font-size: 59px;
    color: #99263f;
    cursor: pointer;
}

.ion-close-circled:hover:before {
    color: #110306;
    transition: all .3s ease;
}

#enlarge-div {
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2;
    width: 100%;
    height: 100%;
    display: none;
}

#enlarge-div:hover {
    cursor: zoom-out;
}

#enlarge-div #inner-div {
    width: 80%;
    height: 85%;
    margin: 0 auto;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: center;
    align-items: center;
}

#enlarge-div #inner-div #big-img {
    height: inherit;
    position: absolute;
    margin: 0 auto;
}

.enlarge-img {
    cursor: zoom-in;
    transition: all 0.6s;
}

@media only screen and (max-width: 1500px) {
    .swiper-button-next_4 {
        right: 0;
    }
    .swiper-button-prev_4 {
        left: 0;
    }
    .service-item .s-left {
        margin-left: 0;
    }
}

@media only screen and (max-width: 1200px) {
    .about-us,
    .service,
    .certificate {
        margin-top: 40px;
        padding: 40px 0;
    }
    .about-us .about-1 {
        display: flex;
        width: 100%;
        flex-direction: row;
        justify-content: center;
    }
    .about-us .about-1 img:first-of-type {
        margin: 0px;
    }
    .about-us .about-2 {
        margin-top: 20px;
        display: flex;
        flex-direction: column;
    }
    .about-2>div:first-of-type,
    .about-2>div:last-of-type {
        margin: 0;
    }
    .about-2>div {
        position: relative;
        width: 100%;
        display: flex;
        flex-direction: column;
    }
    .about-2>div img {
        width: 100%;
    }
    .about-2>div>p {
        margin: 1rem 0;
    }
    .about-2>div:last-of-type {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }
    .about-3 {
        display: flex;
        flex-direction: column;
        margin-top: 25px;
    }
    .about-3>div {
        display: inline-flex;
        flex-direction: column;
    }
    .swiper-button-next_4,
    .swiper-button-prev_4 {
        top: calc(50% - -25px);
    }
    .service .service-item {
        margin-top: 50px;
    }
    .service .service-item>div {
        margin-right: 20px;
    }
    .s-img {
        width: 35%;
    }
}

@media only screen and (max-width: 991px) {
    .about-us .about-1 {
        display: flex;
        width: initial;
        flex-direction: column;
    }
    .about-us .about-1 img:last-of-type {
        margin-left: 0;
        margin-top: 10px;
    }
    .about-2>div:last-of-type {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin-top: 35px;
    }
    .about-2>div img {
        margin-bottom: 20px;
    }
    .service .service-item {
        display: flex;
        margin-top: 40px;
        flex-direction: column;
    }
    .service-item img {
        width: initial;
        margin: 25px auto 0;
    }
    .service .service-item>div {
        margin: 0;
        margin: 0 auto;
    }
    .service p {
        font-size: 16px;
    }
    .service .service-item>div>div {
        margin-top: 25px;
        padding-bottom: 8px;
    }
    .service .service-item>div>div img {
        margin: 0
    }
    #enlarge-div #inner-div #big-img {
        width: 100%;
        height: auto;
    }
    .service-item .s-left {
        position: relative;
        width: 100%;
        display: flex;
    }
}

@media only screen and (max-width: 750px) {
    .about-us,
    .service,
    .certificate {
        margin-top: 25px;
        padding: 30px 0;
    }
    .about-2>div>p {
        word-break: break-all;
    }
    .service-item img {
        width: 100%;
    }
    .about-3 p {
        font-size: 14px;
    }
    .about-3>div>div p {
        font-size: 12px;
    }
    .service .service-item {
        display: flex;
        margin-top: 30px;
        flex-direction: column;
    }
    .service p {
        font-size: 14px;
    }
    .service .service-item>div>div img {
        margin: 0;
        width: 100%;
    }
}

@media only screen and (max-width: 750px) {}