.banner {
    height: 1200px;
    background-image: url('../img/banner.jpg');
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    overflow: hidden;
}

.banner .content {
    max-width: 1500px;
    margin: 180px auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0;
}

.banner .content .text {
    width: 600px;
}

.banner .content .text h1 {
    color: #fff;
    font-size: 48px;
    line-height: 82px;
    margin-bottom: 30px;
}

.banner .content .text p {
    color: #999999;
    font-size: 20px;
}

.banner .content .join {
    display: block;
    width: 196px;
    height: 56px;
    color: #fff;
    background: #286EFA;
    border-radius: 10px;
    font-size: 22px;
    margin-bottom: 25px;
    text-align: center;
    line-height: 60px;
}

.banner .content .contact {
    color: #999999;
    font-size: 22px;
    display: block;
    width: 200px;
    text-align: center;
    cursor: pointer;
}

.scene {
    padding-top: 10px;
}

.scene .phone-wrapper {
    max-width: 1500px;
    height: 605px;
    margin: 0 auto;
    background: url('../img/phone.png');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: 922px 450px;
    position: relative;
    margin-bottom: 100px;
}

.scene .phone-inner {
    max-width: 718px;
    height: 406px;
    position: absolute;
    top: 96px;
    left: 392px;
    bottom: 30px;
    box-shadow: -10px 11px 40px #888;
}

.scene .phone-inner img {
    width: 718px;
    height: 416px;
}

.scene .phone-container {
    overflow: hidden;
}

.scene .text-wrapper {
    width: 718px;
    margin: 0 auto;
}

.scene .text-wrapper .head {
    font-size: 0;
    text-align: center;
    margin-bottom: 62px;
}

.scene .text-wrapper .head span {
    color: #999999;
    font-size: 20px;
    margin-right: 52px;
    cursor: pointer;
    position: relative;
}

.scene .text-wrapper .head span.active {
    color: #333333;
}

.scene .text-wrapper .head span.active::after {
    content: '';
    width: 100%;
    height: 2px;
    background: #7E7E7E;
    position: absolute;
    left: 50%;
    bottom: -20px;
    transform: translateX(-50%);
}

.scene .text-wrapper .head span:last-child {
    margin-right: 0;
}

.scene .text-wrapper .swiper-slide p {
    color: #666;
    font-size: 18px;
    line-height: 36px;
    text-indent: 2em;
    text-align: center;
}

.scene .text-container {
    overflow: hidden;
}

.scene .title {
    color: #333;
    font-size: 54px;
    margin-bottom: 30px;
    text-align: center;
}

.scene .sub-title {
    color: #999999;
    font-size: 20px;
    margin-bottom: 120px;
    text-align: center;
}

.channel {
    padding-top: 175px;
    padding-bottom: 175px;
    font-size: 0;
}

.channel .content {
    max-width: 1500px;
    margin: 0 auto;
    position: relative;
    text-align: right;
}

.channel .text {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    text-align: left;
}

.channel .text h1 {
    color: #323232;
    font-size: 64px;
    line-height: 120px;
    margin-bottom: 28px;
}

.channel .text p {
    color: #666;
    font-size: 18px;
    line-height: 26px;
}

.channel img {
    width: 809px;
}

@media screen and (max-width: 750px) {
    .banner {
        height: 600px;
        background-size: 750px 468px;
        margin-top: -30px;
        padding: 10px;
    }

    .banner .content {
        margin-top: 120px;
    }

    .banner .content .text h1 {
        font-size: 18px;
        line-height: 36px;
    }

    .banner .content .text p {
        font-size: 14px;
    }

    .banner .content .join {
        width: 98px;
        height: 30px;
        font-size: 14px;
        line-height: 30px;
    }

    .banner .content .contact {
        width: 98px;
        font-size: 14px;
    }

    .scene {
        padding: 10px;
        background-color: #f0f0f0;
    }

    .scene .title {
        font-size: 18px;
        margin-bottom: 15px;
        margin-top: 20px;
    }

    .scene .sub-title {
        font-size: 16px;
        margin-bottom: 50px;
        line-height: 32px;
    }

    .scene .phone-wrapper {
        width: 100%;
        height: auto;
        margin-bottom: 0;
    }

    .scene .phone-inner {
        width: 100%;
        height: auto;
        top: 0;
        left: 0;
        bottom: 0;
        position: relative;
        box-shadow: none;
        margin-bottom: 20px;
    }

    .scene .phone-inner img {
        width: 100%;
        height: auto;
    }

    .swiper-button-prev, .swiper-container-rtl .swiper-button-next {
        display: none;
    }

    .swiper-button-next, .swiper-container-rtl .swiper-button-prev {
        display: none;
    }

    .scene .text-wrapper {
        width: 100%;
    }

    .scene .text-wrapper .head {
        margin-bottom: 20px;
        padding-top: 20px;
    }

    .scene .text-wrapper .head span.active::after {
        bottom: -10px;
    }

    .scene .text-wrapper .swiper-slide p {
        font-size: 12px;
        line-height: 24px;
        text-align: left;
        text-indent: unset;
    }

    .scene .text-wrapper .head span {
        font-size: 16px;
        margin-right: 20px;
    }

    .channel {
        padding: 10px;
    }

    .channel .text {
        position: relative;
        transform: translateY(0);
    }

    .channel .text h1 {
        font-size: 16px;
        line-height: 32px;
        margin: 0;
    }

    .channel .text p {
        font-size: 14px;
    }

    .channel img {
        width: 100%;
    }
}