@charset "utf-8";

/* ==================================================
   埼玉大学校友会ページ
   研究・産学官連携ページCSSをベースに使用
================================================== */


/* ==================================================
   基本設定
================================================== */

.entry * {
  box-sizing: content-box;
}

body {
  font-family:
    YuGothic,
    'Yu Gothic',
    'メイリオ',
    Meiryo,
    'ヒラギノ角ゴシック',
    'Hiragino Sans',
    'ＭＳ ゴシック',
    sans-serif;
}

.main {
  background: #fff;
}

.side_outer {
  display: none;
}

.entry {
  border: none;
  padding: 0;
}

.entry a {
  color: initial;
}

.entry a[target="_blank"]::after {
  content: none;
}


/* ==================================================
   ページタイトル
================================================== */

.page_title--box {
  position: relative;

  background: url("/media/koyukai01.JPG") no-repeat center center;
  background-size: cover;
  width: 100%;
  height: 350px;

  display: flex;
  align-items: center;
  justify-content: center;

  color: #fff;
  font-weight: 600;
  font-size: 30px;
  text-align: center;

  font-family: "HiraMinPro-W6", serif;
}

/* 背景画像を少し暗くする */
.page_title--box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

/* タイトルを背景より前面に表示 */
.page_title {
  position: relative;
  z-index: 1;

  margin: 0;
  font-weight: 600;
  font-size: 3rem;
  text-align: center;
  font-family: "HiraMinPro-W6", serif;
  color: #fff;
  text-shadow: none;
}

/* ==================================================
   校友会ページ全体
================================================== */

.koyukai {
  max-width: 1024px;
  margin: 0 auto;
}


/* ==================================================
   ページ見出し
================================================== */

.koyukai .article_title {
  margin: 0 0 40px;
  font-size: 2.4rem;
  font-weight: bold;
  text-align: center;
}


/* ==================================================
   大見出し
================================================== */

.koyukai .article_subheadline {
  margin: 55px 0 25px;
  padding: 12px 20px;

  border-left: 5px solid #008F4B;
  background: #F1F1EF;

  font-size: 2rem;
  font-weight: bold;
  line-height: 1.5;
}


/* ==================================================
   中見出し
================================================== */

.koyukai .article_headline--s {
  margin: 50px 0 25px;
  padding-bottom: 10px;

  border-bottom: 2px solid #008F4B;

  font-size: 1.9rem;
  font-weight: bold;
  line-height: 1.5;
}


/* ==================================================
   本文
================================================== */

.koyukai .article_txt {
  margin: 0 0 25px;

  font-size: 1.6rem;
  line-height: 2;
}

.koyukai .article_txt strong {
  font-weight: bold;
}


/* ==================================================
   メイン画像
================================================== */

.koyukai .article_img--center {
  max-width: 800px;
  margin: 0 auto 50px;
  text-align: center;
}

.koyukai .article_img--center img {
  display: block;
  width: 100%;
  height: auto;
}


/* ==================================================
   CHIMER
   登録・ログインカード
================================================== */

.koyukai_action {
  display: flex;
  gap: 30px;

  max-width: 900px;
  margin: 40px auto 60px;
}


/* カード共通 */

.koyukai_action_card {
  flex: 1;

  padding: 35px 35px 30px;

  text-align: center;
  box-sizing: border-box;
}


/* --------------------------------------------------
   新規登録
-------------------------------------------------- */

.koyukai_action_card--new {
  background: #F1F1EF;
  border-top: 5px solid #008F4B;
}


/* --------------------------------------------------
   ログイン
-------------------------------------------------- */

.koyukai_action_card--login {
  background: #fff;
  border: 1px solid #D9D9D9;
  border-top: 5px solid #999;
}


/* --------------------------------------------------
   NEW REGISTRATION / LOGIN
-------------------------------------------------- */

.koyukai_action_label {
  margin: 0 0 12px;

  color: #008F4B;

  font-size: 1.2rem;
  font-weight: bold;
  letter-spacing: 0.12em;
}

.koyukai_action_card--login .koyukai_action_label {
  color: #666;
}


/* --------------------------------------------------
   カードタイトル
-------------------------------------------------- */

.koyukai_action_title {
  margin: 0 0 20px;

  font-size: 2rem;
  font-weight: bold;
  line-height: 1.5;
}


/* --------------------------------------------------
   カード説明文
-------------------------------------------------- */

.koyukai_action_txt {
  min-height: 70px;
  margin: 0 0 25px;

  font-size: 1.4rem;
  line-height: 1.8;
}


/* --------------------------------------------------
   ボタン
-------------------------------------------------- */

.koyukai_action_btn {
  margin: 0;
}

.koyukai_action_btn a {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 12px;

  width: 100%;
  max-width: 300px;

  padding: 14px 20px;

  box-sizing: border-box;

  background: #008F4B;
  color: #fff !important;

  font-size: 1.5rem;
  font-weight: bold;

  text-decoration: none;

  transition: opacity 0.2s;
}

.koyukai_action_btn a:hover {
  opacity: 0.8;
  text-decoration: none;
}


/* ログインボタンは落ち着いたグレー */

.koyukai_action_card--login .koyukai_action_btn a {
  background: #555;
}


/* 矢印 */

.koyukai_action_btn span {
  font-size: 1.8rem;
  line-height: 1;
}


/* ==================================================
   補助的なリンクボックス
   ※既存HTMLで使用する場合
================================================== */

.koyukai_linkbox {
  max-width: 800px;

  margin: 25px auto;
  padding: 25px 30px;

  background: #F1F1EF;

  text-align: center;
}

.koyukai_linkbox .article_headline {
  margin: 0 0 10px;
  font-size: 1.8rem;
}

.koyukai_linkbox .article_txt {
  margin-bottom: 20px;
  font-size: 1.4rem;
}


/* ==================================================
   旧ボタン用
   ※既存HTMLで使用する場合
================================================== */

.koyukai_btn {
  display: inline-block;

  min-width: 300px;

  padding: 15px 30px;

  background: #008F4B;
  color: #fff !important;

  font-size: 1.6rem;
  font-weight: bold;

  text-align: center;
  text-decoration: none;
}

.koyukai_btn:hover {
  opacity: 0.8;
  text-decoration: none;
}


/* ==================================================
   余白
================================================== */

.koyukai .article_spacer {
  height: 20px;
}


/* ==================================================
   PC
================================================== */

@media screen and (min-width: 768px) {

  .koyukai {
    padding: 0 30px 80px;
  }

}


/* ==================================================
   スマートフォン
================================================== */

@media screen and (max-width: 767px) {

  /* ページ全体 */

  .page_container {
    width: 100%;
  }



  /* 校友会本文 */

  .koyukai {
    width: auto;
    padding: 0 5% 50px;
  }


  /* ページ見出し */

  .koyukai .article_title {
    margin-bottom: 30px;
    font-size: 2rem;
  }


  /* 大見出し */

  .koyukai .article_subheadline {
    margin: 40px 0 20px;
    padding: 10px 15px;

    font-size: 1.7rem;
  }


  /* 中見出し */

  .koyukai .article_headline--s {
    margin-top: 40px;
    font-size: 1.7rem;
  }


  /* 本文 */

  .koyukai .article_txt {
    font-size: 1.5rem;
    line-height: 1.9;
  }


  /* ------------------------------------------------
     登録・ログインカード
  ------------------------------------------------ */

  .koyukai_action {
    display: block;

    width: 100%;

    margin: 30px auto 45px;
  }


  .koyukai_action_card {
    padding: 28px 20px 25px;
  }


  .koyukai_action_card + .koyukai_action_card {
    margin-top: 20px;
  }


  .koyukai_action_label {
    font-size: 1.1rem;
  }


  .koyukai_action_title {
    font-size: 1.8rem;
  }


  .koyukai_action_txt {
    min-height: auto;
    font-size: 1.4rem;
  }


  .koyukai_action_btn a {
    max-width: none;
    font-size: 1.5rem;
  }


  /* ------------------------------------------------
     補助リンクボックス
  ------------------------------------------------ */

  .koyukai_linkbox {
    padding: 20px 15px;
  }

  .koyukai_linkbox .article_headline {
    font-size: 1.6rem;
  }


  /* ------------------------------------------------
     旧ボタン
  ------------------------------------------------ */

  .koyukai_btn {
    display: block;

    min-width: 0;

    padding: 14px 15px;

    font-size: 1.5rem;
  }

}