.wrap1440 {
    max-width: 1440px;
    margin: 0 auto;
}

.wrap1200 {
    max-width: 1200px;
    margin: 0 auto;
}

.nav-bg {
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.24)
}

.navbar {
    max-width: 1200px;
}

.nav-bg,
.navbar-default {
    background-color: #262626;
}

.head_nav li {
    color: #B3B3B3;
    line-height: 50px;
    padding: 0 16px;
}

.head_nav .btn_buy {
    line-height: 18px;
    padding: 10px 30px;
    margin: 6px 0;
    margin-left: 24px;
    color: #000;
    background-color: #FECC2F;
}

.product-box .big_title {
    margin-top: 0;
}

.banner {
    background-image: linear-gradient(249deg, #37393D 0%, #ABABAB 100%);
    height: 690px;
    overflow: hidden;
}

.banner .product {
    width: 842px;
    margin-top: 72px;
    margin-left: -100px;
}

.banner .content {
    max-width: 1200px;
    position: relative;
    top: -620px;
    right: 0;
    margin: 0 auto;
    text-align: right;
}

.banner h1 {
    font-size: 48px;
    color: #FFFFFF;
    letter-spacing: 24.86px;
    text-align: right;
    margin-right: 8px;
}

.banner h3 {
    opacity: 0.7;
    font-size: 32px;
    color: #FFFFFF;
    letter-spacing: 14.55px;
    text-align: right;
    padding-top: 32px;
}

.banner .divline {
    width: 172px;
    height: 1px;
    float: right;
    padding-top: 32px;
    margin-right: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .3);
}

.banner p {
    opacity: 0.5;
    font-size: 20px;
    color: #FFFFFF;
    letter-spacing: 5px;
    text-align: right;
    line-height: 54.68px;
    padding-top: 64px;
    margin-right: 16px;

}

.banner .price {
    font-size: 48px;
    color: rgba(255, 255, 255, .8);
    margin-right: 16px;
    margin-top: 16px;
}

.banner .buynow {
    font-size: 36px;
    color: #FECC2F;
    opacity: 1;
    padding-left: 18px;
}

.buynow_arrowright {
    width: 10px;
    margin-left: 18px;
}

.featuredin {
    background-color: #fff;
}

.featuredin p {
    font-size: 20px;
    color: #000000;
    letter-spacing: 5px;
    text-align: center;
    padding: 80px 16px;
    line-height: 36px;
}

.featuredin img {
    margin-top: 80px;
    padding: 0 16px;
}

.point {
    background-image: linear-gradient(45deg, #373737 0%, #1A1A1A 100%);
    margin-top: -10px;
}

.point img {
    width: 100%;
    padding: 110px 16px;

}

.video {
    background-image: radial-gradient(50% 50%, #333333 50%, #000000 100%);
}

.video .cp {
    max-width: 700px;
    margin: 0 auto;
    padding: 240px 0 0 0;
}

.video .control {
    position: relative;
    top: -280px;
}

.video .btn_control {
    width: 70px;
    margin: 0 auto;
}

.video p:hover,
.video .btn_control:hover {
    cursor: pointer;
}

.video p {
    opacity: 0.8;
    font-size: 20px;
    color: #FFFFFF;
    letter-spacing: 5px;
    text-align: center;
    padding-top: 32px;
}

.product-box {}

.function {
    background-color: #fff;
    margin-top: -10px;
    padding: 56px;

}

.product-box ul {
    margin: 0;
}

.mobile_buynow {
    display: none;
}

@media (min-width: 425px) and (max-width: 768px) {
    .banner {
        height: 600px;
    }

    .banner .content {
        top: -580px;
    }

    .banner .product {
        max-width: 620px;
        margin-left: 0;
        padding-top: 100px;
        margin-left: -40px;
    }

    .banner h1 {
        font-size: 38px;
        letter-spacing: 15px;
        margin-right: 12px;
    }

    .banner h3 {
        font-size: 26px;
        letter-spacing: 10px;
        padding-top: 10px;
        padding-right: 12px;
    }

    .banner p {
        font-size: 16px;
        line-height: 32px;
    }

    .banner .price {
        font-size: 20px;
    }

    .banner .buynow {
        font-size: 20px;
    }

    .buynow_arrowright {
        width: 8px;
        margin-left: 8px;
        margin-top: -4px;
    }

    .featuredin img {
        margin-top: 40px;
        padding: 0 16px;
    }

    .featuredin p {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 24px 16px;
        text-align: center;
        line-height: 28px;
    }

    .point_svg {
        max-width: 650px;
        margin: 0 auto;
    }

    .point img {
        padding: 32px 16px;
        border-bottom: 1px solid #000;
    }

    .video .cp {
        padding-top: 100px;
        width: 80%;
    }

    .video .btn_control {
        width: 48px;
    }

    .video p {
        font-size: 16px;
    }

    .video .control {
        top: -190px;
    }

    .function {
        padding: 16px;
    }

    .mobile_buynow {
        background-color: #FECC2F;
        float: right;
        padding: 8px 20px;
        line-height: 16px;
        margin: 10px 16px;
        display: block;
    }

    .mobile_buynow p {
        margin: 0;
    }

}

@media (min-width: 375px) and (max-width: 425px) {
    .banner {
        height: 580px;
    }

    .banner .content {
        top: -580px;
    }

    .banner .product {
        max-width: 420px;
        margin-left: 0;
        padding-top: 240px;
        margin-left: -40px;
    }

    .banner h1 {
        font-size: 32px;
        letter-spacing: 2px;
        margin-right: 12px;
    }

    .banner h3 {
        font-size: 26px;
        letter-spacing: 5px;
        padding-top: 10px;
        padding-right: 12px;
    }

    .banner p {
        font-size: 16px;
        line-height: 32px;
    }

    .banner .price {
        font-size: 20px;
    }

    .banner .buynow {
        font-size: 20px;
    }

    .buynow_arrowright {
        width: 8px;
        margin-left: 8px;
        margin-top: -4px;
    }

    .featuredin img {
        margin-top: 40px;
        padding: 0 16px;
    }

    .featuredin p {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 24px 16px;
        text-align: center;
        line-height: 22px;
    }

    .point img {
        padding: 32px 16px;
        border-bottom: 1px solid #000;
    }
    .point_svg {
        max-width: 380px;
        margin: 0 auto;
    }

    .video .cp {
        padding-top: 100px;
        width: 80%;
    }

    .video .btn_control {
        width: 48px;
    }

    .video p {
        font-size: 16px;
    }

    .video .control {
        top: -130px;
    }

    .function {
        padding: 16px;
    }

    .mobile_buynow {
        background-color: #FECC2F;
        float: right;
        padding: 8px 20px;
        line-height: 16px;
        margin: 10px 16px;
        display: block;
    }

    .mobile_buynow p {
        margin: 0;
    }

}

@media (min-width: 360px) and (max-width: 375px) {
    .banner {
        height: 580px;
    }

    .banner .content {
        top: -580px;
    }

    .banner .product {
        max-width: 400px;
        margin-left: 0;
        padding-top: 240px;
        margin-left: -40px;
    }

    .banner h1 {
        font-size: 28px;
        letter-spacing: 2px;
        margin-right: 12px;
    }

    .banner h3 {
        font-size: 22px;
        letter-spacing: 5px;
        padding-top: 10px;
        padding-right: 12px;
    }

    .banner p {
        font-size: 16px;
        line-height: 32px;
    }

    .banner .price {
        font-size: 20px;
    }

    .banner .buynow {
        font-size: 20px;
    }

    .buynow_arrowright {
        width: 8px;
        margin-left: 8px;
        margin-top: -4px;
    }

    .featuredin img {
        margin-top: 40px;
        padding: 0 16px;
    }

    .featuredin p {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 24px 16px;
        text-align: center;
    }

    .point img {
        padding: 32px 16px;
        border-bottom: 1px solid #000;
    }
    .point_svg {
        max-width: 320px;
        margin: 0 auto;
    }

    .video .cp {
        padding-top: 100px;
        width: 80%;
    }

    .video .btn_control {
        width: 48px;
    }

    .video p {
        font-size: 16px;
    }

    .video .control {
        top: -120px;
    }

    .function {
        padding: 16px;
    }

    .mobile_buynow {
        background-color: #FECC2F;
        float: right;
        padding: 8px 20px;
        line-height: 16px;
        margin: 10px 16px;
        display: block;
    }

    .mobile_buynow p {
        margin: 0;
    }

}

@media screen and (max-width: 360px) {
    .banner {
        height: 580px;
    }

    .banner .content {
        top: -580px;
    }

    .banner .product {
        max-width: 380px;
        margin-left: 0;
        padding-top: 240px;
        margin-left: -60px;
    }

    .banner h1 {
        font-size: 24px;
        letter-spacing: 2px;
    }

    .banner h3 {
        font-size: 20px;
        letter-spacing: 5px;
        padding-top: 10px;
        padding-right: 8px;
    }

    .banner p {
        font-size: 16px;
        line-height: 32px;
    }

    .banner .price {
        font-size: 20px;
    }

    .banner .buynow {
        font-size: 20px;
    }

    .buynow_arrowright {
        width: 8px;
        margin-left: 8px;
    }

    .featuredin img {
        margin-top: 40px;
        padding: 0 16px;
    }

    .featuredin p {
        font-size: 16px;
        letter-spacing: 0px;
        padding: 24px 16px;
        text-align: center;
        line-height: 24px;
    }

    .point img {
        padding: 32px 16px;
        border-bottom: 1px solid #000;
    }

    .video .cp {
        padding-top: 100px;
        width: 80%;
    }

    .video .btn_control {
        width: 48px;
    }

    .video p {
        font-size: 16px;
    }

    .video .control {
        top: -100px;
    }

    .function {
        padding: 16px;
    }

    .mobile_buynow {
        background-color: #FECC2F;
        float: right;
        padding: 8px 20px;
        line-height: 16px;
        margin: 10px 16px;
        display: block;
    }

    .mobile_buynow p {
        margin: 0;
    }

}