/* 全体共通 */
body {
    margin: 0;
    font-family: 'Noto Sans', sans-serif;
    color: #121212;
    font-size: 18px;
}

/* ベースリセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
}

p {
    font-weight: normal;
}

a {
    color: #1074DE;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

header,
main {
    margin: 0;
    padding: 0;
}

.site-header,
.site-main {
    max-width: 1200px;
    margin: 0 auto;
}

/* ヘッダー */
.site-header {
    padding: 120px 0;

}

.site-header h1 {
    font-family: 'Kaisei Opti', 'Noto Sans', sans-serif;
    font-size: 5.375rem;
    font-weight: 500;
    text-align: center;
    color: #fff;
    line-height: 130%;
}

.kv-01 {
    background: url(images/kv-01_pc.png) no-repeat;
    background-position: center;
    background-size: cover;
    height: 460px;
}

.kv-02 {
    background: url(images/kv-02_pc.png) no-repeat;
    background-position: center;
    background-size: cover;
    height: 460px;
}

.kv-03 {
    background: url(images/kv-03_pc.png) no-repeat;
    background-position: center;
    background-size: cover;
    height: 460px;
}

/* メインコンテンツ */
.site-main {
    margin-bottom: 100px;
}

.site-main .box-01 {
    border: 5px solid #0271BC;
    border-radius: 25px;
    margin: 50px 50px 120px 50px;
}

.site-main .box-02 {
    border: 5px solid #029F41;
    border-radius: 25px;
    margin: 50px 50px 120px 50px;
}

.site-main .box-03 {
    border: 5px solid #F17210;
    border-radius: 25px;
    margin: 50px 50px 120px 50px;
}

.event-info {
    padding: 70px;
    background-color: #0271BC;
    border-radius: 10px 10px 0 0;
    color: #fff;
}

.event-info.bg-green {
    background-color: #029F41;
}

.event-info.bg-orange {
    background-color: #F17210;
}

.info-item {
    display: flex;
}

.label {
    flex: 0 0 120px;
    font-weight: 500;
    font-size: 1.875rem;
    line-height: 210%;
}

/* iPad Air（縦持ち）専用のスタイル */
@media screen and (width: 820px) {
    .event-info {
        padding: 60px;
    }

    .label {
        flex: 0 0 100px;
    }
  }

.content {
    flex: 1;
    line-height: 1.6;
}

h2.date {
    font-size: 2.5rem;
    font-weight: 500;
    text-align: left;
    margin-bottom: 10px;
}

.separator {
    border: none;
    border-top: 2px solid #fff;
    margin: 50px 0 50px;
}

.access {
    margin-top: 15px;
}

.access i {
    margin-right: 10px;
}

.access a {
    color: #fff;
    text-decoration: none;
}

.access a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
    opacity: 0.8;
    transition: all 0.3s ease;
}

/* ボタン全体を中央寄せ */
.cta-wrapper {
    text-align: center;
    display: block;
    margin-top: 60px;
}

/* CTAボタン */
.cta-button {
    background-color: #F44343;
    color: #fff;
    padding: 20px 60px 20px 80px;
    border-radius: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    width: 400px;
    margin: 0 auto;
    border: 2px solid #fff;
}

/* Hover時のアニメーション */
.cta-button:hover {
    background-color: #da1d39;
    /* 濃い赤に変化 */
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

/* リスト */
.exhibitors {
    max-width: 85%;
    margin: 0 auto;
    padding: 70px 0;
}

h2 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 20px;
    text-align: center;
}

.exhibitors p.center {
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
}

p.read {
    color: red;
    font-size: 1.5rem;
    text-align: center;
}

.grid-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3.75rem;
    margin-top: 50px;
}

.column-left,
.column-right {
    flex: 1 1 40%;
    display: flex;
    flex-direction: column;
    gap: 3.75rem;
}

.area {}

.column-left .area:nth-child(3) {
    visibility: hidden;
    /* 空白スペースを保つ */
}

h3 {
    font-size: 1.625rem;
    font-weight: 500;
    margin-bottom: 8px;
    border-bottom: 1px solid #ccc;
    padding-bottom: 4px;
    background: #34C65B;
    border-radius: 50px;
    padding: 8px;
    color: #fff;
    text-align: center;
    margin-bottom: 30px;
}

ol {
    padding: 0;
    margin: 0;
}

ol li {
    list-style-position: inside;
    text-indent: -1.7rem;
    padding-left: 1.7rem;
    margin-bottom: 10px;
}

ol li.none {
    list-style: none;
    margin-bottom: 20px !important;
    margin-top: 40px;
}

ol li .group {
    background: #DBDBDB;
    text-align: center;
    width: 10.625rem;
    font-size: 1.25rem;
    padding: 5px 20px;
}

ol li a {
    color: #121212;
    pointer-events: none;
    /* リンク時に外す */
}

ol li a:hover {
    color: #1074DE;
    text-decoration: underline;
    transition: all 0.3s ease;
}

/* pagetop */
.pagetop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    }

.pagetop a {
    width: 50px;
    height: 50px;
    border: 2px solid #A3A3A3;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    text-decoration: none;
    color: #A3A3A3;
}

/* フッター */
footer {
    margin: 0px 20px 20px 20px;
    text-align: center;
    font-size: 1rem;
}

/* モジュール */
.center {
    text-align: center;
}

.bg-orange {
    background-color: #F58548;
}

.bg-pink {
    background-color: #D979CD;
}

.bg-blue {
    background-color: #44B3E5;
}

.bg-yellow {
    background-color: #E2CF44;
}

.sm-text {
    font-size: 0.9rem;
}

.att {
    margin-top: 8px;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    p {
        font-size: 1rem;
        font-weight: 100;
    }

    .site-header,
    .site-main {
        width: 100%;
    }

    .site-header {
        padding-top: 75px;
    }

    .site-header h1 {
        font-size: 2.6rem;
        line-height: 130%;
    }

    .kv-01,
    .kv-02,
    .kv-03 {
        height: 250px;
    }

    /* メインコンテンツ */
    .site-main {
        margin-bottom: 60px;
    }

    .site-main .box-01 {
        border: 4px solid #0271BC;
        border-radius: 15px;
        margin: 20px 20px 60px 20px;
    }

    .site-main .box-02 {
        border: 4px solid #029F41;
        border-radius: 15px;
        margin: 20px 20px 60px 20px;
    }

    .site-main .box-03 {
        border: 4px solid #F17210;
        border-radius: 15px;
        margin: 20px 20px 60px 20px;
    }

    .event-info {
        padding: 30px 20px 45px 20px;
    }

    .label {
        flex: 0 0 50px;
        font-weight: 500;
        font-size: 1rem;
        line-height: 180%;
    }

    .content {
        line-height: 1.5;
    }

    h2.date {
        font-size: 1.25rem;
        margin-bottom: 10px;
    }

    .separator {
        border-top: 1px solid #fff;
        margin: 20px 0 20px;
    }

    .access {
        margin-top: 15px;
        font-size: 1rem;
    }

    .access i {
        margin-right: 10px;
    }

    .access a {
        color: #fff;
        text-decoration: none;
    }

    .access a:hover {
        text-decoration: underline;
        text-underline-offset: 3px;
        opacity: 0.8;
        transition: all 0.3s ease;
    }

    /* ボタン全体を中央寄せ */
    .cta-wrapper {
        margin-top: 50px;
    }

    /* CTAボタン */
    .cta-button {
        padding: 15px 20px 15px 40px;
        font-size: 1.2rem;
        width: 100%;
        margin: 0 auto;
    }

    /* リスト */
    .exhibitors {
        max-width: 100%;
        padding: 50px 20px;
    }

    h2 {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    p.read {
        font-size: 1.2rem;
        margin-bottom: 30px;
        padding: 0 15px;
    }

    .grid-container {
        display: block;
        gap: 1rem;
        margin-top: 30px;
    }

    .column-left,
    .column-right {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 3rem;
    }

    h3 {
        font-size: 1.25rem;
        margin-bottom: 25px;
    }

    ol li {
        font-size: 1rem;
    }

    ol li.none {
        list-style: none;
        margin-bottom: 20px !important;
    }

    ol li .group {
        font-size: 1rem;
    }

    /* pagetop */
    .pagetop {
        bottom: 15px;
        right: 15px;
        }

    .pagetop a {
        width: 40px;
        height: 40px;
    }

    /* フッター */
    footer p {
        font-size: 0.8rem;
    }
}