.mgt10 {
    margin-top: 10px!important;
}
.mgt20 {
    margin-top: 20px!important;
}
.mgt30 {
    margin-top: 30px!important;
}
.mgt40 {
    margin-top: 40px!important;
}
.mgt50 {
    margin-top: 50px!important;
}
.mgt60 {
    margin-top: 60px!important;
}
.mgt70 {
    margin-top: 70px!important;
}
.mgt80 {
    margin-top: 80px!important;
}
.mgt90 {
    margin-top: 90px!important;
}
.mgt100 {
    margin-top: 100px!important;
}
body.contents-bg {
    background-color: white!important;
}
.wrapper {
    height: 100vh;
}
.main-top {
    width: 100%;
    position: relative;
}
.main-top .top-img {
    width: 100%;
    position: relative;
}
.main-top .top-img img {
    width: 100%;
}
.main-top .top-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.main-contents {
    width: 1100px;
    margin: 50px auto;
}
.contents-footer {
    width: 100%;
    text-align: center;
}
.contents-footer footer {
    background-color: #C8161D;
    color: white;
    font-size: .7rem;
    padding: 5px 0;
}
/***************
pankuzu
****************/
.breadcrumb {
    display: flex;
    align-items: center;
    font-size: 12px;
    margin: 0;
    padding: 0;
}
.breadcrumb li {
    color: #333333;
    list-style: none;
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
}
.breadcrumb li + li::before {
    content: ">";
    margin: 0 6px;
    color: #aaa;
}
.breadcrumb svg {
    width: 18px;
    height: 18px;
    fill: #777;
    vertical-align: middle;
}
/***************
contents
****************/
.center-title {
    text-align: center;
    margin: 0 auto 30px;
}
.center-title p {
    color: #C8000A;
    font-size: 1.25rem;
    font-weight: bold;
}
.content-text-box {

}
.content-text-box p {
    color: #333333;
    font-size: .85rem;
    line-height: 2em;
}
.content-text-box p span {
    font-size: 1rem;
    font-weight: 600;
}
.content-text-box p.text-right {
    text-align: right;
}
/***************
about
****************/
table.about {
    width: 100%;
    color: #333333;
    border-collapse: collapse;
}
table.about th,
table.about td {
    font-size: .85rem;
    padding: 25px 0;
    border-top: 1px solid #747373;
    border-bottom: 1px solid #747373;
    text-align: left;
}
table.about th {
    width: 20%;
    font-weight: normal;
}
table.about tr:last-child td {
    border-bottom: 1px solid #747373;
}
/***************
group
****************/
.group-flex {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.child {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
    color: #333333;
    padding-bottom: 20px;
    border-bottom: 1px solid #808080;
}
.left {
    flex: 0 0 30%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.left img {
    width: 100%;
    max-width: 240px;
    height: auto;
    display: block;
}
.left img.aetas {
    width: 100%;
    max-width: 200px!important;
    height: auto;
    display: block;
}
.left img.jet {
    width: 100%;
    max-width: 100px!important;
    height: auto;
    display: block;
}
.right {
    flex: 1;
}
.right h3 {
    position: relative;
    padding-left: 12px;
    margin-bottom: 10px;
}
.right h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: #C8161D;
}
.right p {
    line-height: 2;
    margin: 0;
    font-size: .85rem;
}
.right a {
    font-size: .85rem;
    color: #333333;
    line-height: 3;
}
.right a:hover {
    color: #C8161D;
}
/***************
back button
****************/
.back-btn {
    text-align: center;
    margin: 0 auto;
}
    .back-btn a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 16px;
        border: 2px solid #ccc;
        border-radius: 2px;
        text-decoration: none;
        color: #C8161D;
        font-weight: 500;
        font-size: 1rem;
        transition: all 0.3s ease;
        position: relative;
    }
        .back-btn a::after {
            content: '→';
            font-size: 1.2rem;
            transform: rotate(-35deg);
            transition: transform 0.3s ease;
        }
            .back-btn a:hover::after {
                transform: translateX(4px);
            }
        .back-btn a:hover {
            border-color: #C8161D;
            color: #C8161D;
        }

@media screen and (max-width: 768px) {
    .main-top .top-title img {
        width: 120px;
    }
    .main-contents {
        width: 100%;
        margin: 20px 0 50px;
        padding: 0 10px;
    }
    .content-text-box {
        font-size: .8rem;
    }
    tbody,
    table.about,
    table.about tr,
    table.about th,
    table.about td {
        display: block;
        width: 100%;
        font-size: .8rem;
    }
    table.about th {
        background-color: #f5f5f5;
        padding: 10px;
        box-sizing: border-box;
    }
    table.about td {
        padding: 20px 10px;
        border-top: none;
        border-bottom: none;
    }
    .group-flex {
        margin-top: 30px;
    }
    .child {
        flex-direction: column;
        align-items: flex-start;
        padding-bottom: 5px;
        gap: 0;
    }

  .left {
    flex: 1 1 100%;
    width: 100%;
    text-align: center;
    margin-bottom: 5px;
    display: flex;
    justify-content: center;
  }
  .left img {
    max-width: 80%;
    width: 100%;
    height: auto;
  }

    .right h3 {
        padding-left: 8px;
        font-size: .9rem;
    }

    .right h3::before {
        width: 3px;
    }
    .back-btn a {
        font-size: .85rem;
    }
}