.iot .fv {
    background-color: #831c0e;
    margin-top: 90px;
}


.iot .read_text {
    background-image: url(https://deccs.jp/content-asset/images/iot/read_text_bg.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: contain;
    margin: 120px auto;
    max-width: 1000px;
    text-align: center;
    width: 100%;
}

.iot .read_text .main {
    font-size: 100px;
    font-weight: bold;
}

.iot .read_text .sub {
    font-size: 36px;
    font-weight: bold;
    margin-top: 30px;
}

.iot .read_text .text {
    font-size: 20px;
    margin-top: 60px;
    text-align: initial;
}

.red {
    color: #831c0e;
}


.iseg {
    background-color: #333;
    padding: 60px;
}

.iseg .img_box {
    height: 100%;
    margin-top: 60px;
    max-height: 1000px;
    text-align: center;
}

.iseg .img_box img {
    margin: 0 auto;
}

.iseg .text_box {
    border: solid 2px #fff;
    color: #fff;
    margin: 0 auto;
    margin-top: 60px;
    max-width: 1100px;
    padding: 20px;
    width: 100%;
}


.fiveg {
    margin: 100px auto;
    max-width: 1000px;
    width: 100%;
}

.fiveg .main {
    color: #831c0e;
    font-size: 50px;
    font-weight: bold;
}

.fiveg .sub {
    color: #111;
    font-size: 16px;
    margin-top: 40px;
}


.features .inner {
    margin: 0 auto;
    max-width: 1200px;
    width: 100%;
}

.features .content_box {
    padding: 60px 0;
    text-align: center;
}

.features .content_box .img_box {
    margin-top: 60px;
    text-align: center;
}

.features .content_box .img_box img {
    margin: 0 auto;
}

.bg_gray1 {
    background-color: #e8e8e8;
}

.bg_gray2 {
    background-color: #dcdcdc;
}


.features .title {
    border-bottom: 1px solid #111;
    display: inline-block;
    font-size: 50px ;
    font-weight: bold;
}

.features .sub_title {
    color: #831c0e;
    font-size: 30px;
    font-weight: bold;
    margin-top: 10px;
}
.features .text {
    font-size: 16px;
    margin-top: 40px;
}

.hems {
    background-color: #831c0e;
    padding: 60px 0;
}

.hems .inner {
    margin: 0 auto;
    max-width: 1200px;
    width: 100%;
}

.hems .content {
    display: flex;
    justify-content: center;
}

.hems .content .left {
    margin-right: 20px;
    width: 60%;
}

.hems .content .left h2 {
    color: #fff;
    font-size: 40px;
    font-weight: bold;
}

.hems .content .left .text {
    color: #fff;
    font-size: 16px;
    margin-top: 40px;
}

.hems .content .right {
    width: 30%;
}

.hems .text_box {
    background-color: #fff;
    margin: 0 auto;
    margin-top: 40px;
    max-width: 1000px;
    padding: 30px;
    width: 100%;
}

.hems .text_box h3 {
    background-color: #333;
    color: #fff;
    display: inline-block;
    padding: 10px 20px;
}
.hems .text_box h3:not(:first-child) {
    margin-top: 30px;
}
.hems .text_box p {
    margin-top: 10px;
}

.fadeIn {
    opacity: 0;
    transform: translate3d(0, 100px, 0);
    transition: 1s;
}
.fadeIn.animated {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}


@media screen and (max-width: 425px) {
    .iot .read_text {
        margin: 60px auto;
    }

    .iot .read_text .main {
        font-size: 50px;
    }
    .iot .read_text .sub {
        font-size: 24px;
        margin-top: 20px;
    }
    .iot .read_text .text {
        font-size: 16px;
        margin: 0 auto;
        margin-top: 40px;
        width: 90%;
    }
    .iseg {
        padding: 60px 20px;
    }
    .iseg .img_box {
        margin-top: 0;
    }
    .fiveg {
        margin: 60px auto;
        width: 90%;
    }
    .fiveg .main {
        font-size: 24px;
    }
    .fiveg .sub {
        font-size: 16px;
        margin-top: 30px;
    }

    .features .inner {
        width: 96%;
    }

    .features .title {
        font-size: 30px;
    }
    .features .sub_title {
        font-size: 20px;
    }
    .features .text {
        margin: 0 auto;
        margin-top: 40px;
        width: 90%;
    }
    .features .content_box .img_box img {
        margin: 0 auto;
    }

    .hems .inner {
        width: 90%;
    }

    .hems .content {
        flex-direction: column;
    }


    .hems .content .left {
        width: 100%;
    }

    .hems .content .left .text {
        margin-top: 30px;
    }

    .hems .content .left h2 {
        font-size: 24px;
    }


    .hems .content .right {
        margin-top: 30px;
        width: 100%;
    }

    .hems .text_box h3 {
        display: block;
        margin: 0 auto;
        text-align: center;
        width: 80%;
    }
}


@media screen and (max-width: 320px) {
    .read_text .main {
        font-size: 40px;
    }
    .read_text .sub {
        font-size: 18px;
    }
    .iseg .text_box {
        margin-top: 40px;
    }
    .fiveg .main {
        font-size: 20px;
    }
    .features .title {
        font-size: 24px;
    }
    .features .sub_title {
        font-size: 16px;
    }
    .hems .text_box h3 {
        width: 96%;
    }
}