.top-item {
    width: 100%;
    height: 70vh;
    position: relative;
}

.top-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.top-image img {
    width: 100%;
    height: 100%;
    z-index: -1;
    position: relative;
}

.top-image img::before {
    content: '';
    position: absolute;
    background-color: rgba(0, 0, 0, 0.5);
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.title-sub {
    font-size: 1.2rem;
    text-wrap: nowrap;
}

.main-txt {
    font-family: 'Roboto', sans-serif;
    display: inline-block;
    text-align: center;
    font-weight: 700;
    padding: 70px 20px 20px 20px;
    font-size: 2vw;
    letter-spacing: 0.18em;
    color: #1f2c5c;
    margin-bottom: 50px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
}

/* contents1 ---------------------------------------------------------------------*/
.contents1 {
    height: auto;
    padding-bottom: 70px;
}

.sekou-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 70px;
    margin-top: 20px;
    margin-bottom: 50px;
}

.sekou-item {
    width: 45%;
}

.sekou-item h3 {
    text-align: left;
}

.sekou-img {
    width: 100%;
    margin: 0 auto;
    position: relative;
}

.sekou-img img {
    width: 100%;
}

/* .sekou-img::before{
    content: '準備中';
    position: absolute;
    color: #FFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background-color: rgba(0, 0, 0, 0.5);
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
} */




/* contents2 -----------------------------------------------------------------------*/

.contents2 {
    height: auto;
    padding-bottom: 70px;
}

.plant-table {
    width: 100%;
    margin: 0 auto;
    border-collapse: collapse;
}

.plant-table th {
    font-size: 1rem;
    letter-spacing: 0.5em;
    background: #1f2c5ce8;
    color: #FFF;
    border: 1px solid #dfdfdf;
    text-align: center;
    padding: 10px;
    width: 15%;
    min-width: 60px;
}

.plant-table td {
    text-align: left;
    border: 1px solid #dfdfdf;
    background-color: #FFF;
    padding: 10px;
    text-align: center;
}

/* contents3 ----------------------------------------------------------------------*/
.contents3{
    padding-bottom: 70px;
    background: #f6f3f3;
}

/* レスポンシブ対応 --------------------------------------------------------------- */
@media screen and (max-width:1050px) {
    .main-txt {
        font-size: 25px;
    }

    .title-sub {
        font-size: 15px;
    }
}

@media screen and (max-width:900px) {
    /* .sekou-item {
        width: 90%;
    } */

    .sekou-list {
        gap: 30px;
    }

    .sekou-list-title{
        font-size: 17px;
    }

    .sekou-item h3 {
        font-size: 15px;
    }
}

@media screen and (max-width:800px) {
    .plant-table {
        display: block;
        overflow-x: scroll;
        white-space: nowrap;
    }

    .plant-table th,
    .plant-table td {
        font-size: 13px;
    }
}

@media screen and (max-width:550px) {
    .sekou-list-title{
        font-size: 3vw;
        margin-top: 20px;
    }

    .sekou-item h3{
        font-size: 2.5vw;
    }
    .plant-table th,
    .plant-table td {
        font-size: 11px;
    }
}