body {
  font-family: "メイリオ", Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  color: #333;
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.05em;
}

a {
  color: #0078d4;
  text-decoration: none;
}

#wrapper {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

/*-------------------------------------------
ヘッダー
-------------------------------------------*/
#header {
  background-color: #f5f5f5;
  padding: 25px 0;
}

#header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

#header h1 {
  margin: 0;
  width: 184px;
}

#header .contact {
  width: 250px;
}

#header .contact .tel {
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 0.05em;
}

#header .contact .open {
  font-size: 12px;
  letter-spacing: 0.05em;
}

#header .contact .btn {
  display: inline-block;
  background-color: #0078d4;
  color: #fff;
  padding: 10px;
  border-radius: 5px;
  text-align: center;
  letter-spacing: 0.05em;
  font-size: 14px;
}

/*-------------------------------------------
グローバルナビ
-------------------------------------------*/
#menu ul {
  display: flex;
  justify-content: space-between;
  list-style: none;
  margin: 0;
  padding: 0;
}

#menu ul li {
  width: 184px;
  border-left: 1px solid #ddd;
}

#menu ul li:last-child {
  border-right: 1px solid #ddd;
}

#menu ul li a {
  display: block;
  padding: 15px;
  text-align: center;
}

#menu ul li a:hover {
  background-color: #eee;
}

/*-------------------------------------------
メイン画像
-------------------------------------------*/
#mainvisual {
  margin-bottom: 50px;
}

#mainvisual img {
  width: 100%;
  height: auto;
}

/*-------------------------------------------
コンテンツ
-------------------------------------------*/
#content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 50px;
}

#main {
  width: calc(100% - 270px);
}

#sub {
  width: 250px;
}

.heading {
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 0.05em;
  border-bottom: 2px solid #333;
  padding-bottom: 10px;
  margin-bottom: 30px;
}

/* お知らせ */
#news dl {
  margin: 0;
}

#news dt {
  float: left;
  font-weight: bold;
}

#news dd {
  margin-left: 100px;
  margin-bottom: 15px;
  padding-left: 1em;
}

/* 会社概要 */
#company table {
  border-collapse: collapse;
  width: 100%;
}

#company th,
#company td {
  border: 1px solid #ccc;
  padding: 15px;
}

#company th {
  width: 25%;
  font-weight: bold;
  background-color: #f5f5f5;
}

#company td {
  width: 75%;
}

/* サイドメニュー */
#sidemenu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#sidemenu ul li {
  border: 1px solid #ccc;
  border-bottom: none;
}

#sidemenu ul li:last-child {
  border-bottom: 1px solid #ccc;
}

#sidemenu ul li a {
  display: block;
  padding: 15px;
}

#sidemenu ul li a:hover {
  background-color: #eee;
}

/*-------------------------------------------
フッター
-------------------------------------------*/
#footer {
  background-color: #333;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

#footer .inner {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

#footer ul {
  display: flex;
  justify-content: center;
  list-style: none;
  margin: 0 0 15px;
  padding: 0;
}

#footer ul li {
  margin: 0 10px;
}

#footer ul li a {
  color: #fff;
  font-size: 12px;
}

#footer ul li a:hover {
  text-decoration: underline;
}

#footer small {
  font-size: 12px;
}

/*-------------------------------------------
レスポンシブ
-------------------------------------------*/
@media screen and (max-width: 768px) {
  body {
    font-size: 14px;
  }

  /* ヘッダー */
  #header .inner {
    flex-direction: column;
    align-items: flex-start;
  }

  #header h1 {
    margin-bottom: 15px;
  }

  /* グローバルナビ */
  #menu ul {
    flex-direction: column;
  }

  #menu ul li {
    width: 100%;
    border-right: 1px solid #ddd;
    box-sizing: border-box;
  }

  #menu ul li:first-child {
    border-top: 1px solid #ddd;
  }

  #menu ul li:last-child {
    border-bottom: 1px solid #ddd;
  }

  /* コンテンツ */
  #content {
    flex-direction: column;
  }

  #main {
    width: 100%;
    margin-bottom: 50px;
  }

  #sub {
    width: 100%;
  }

  /* お知らせ */
  #news dt {
    float: none;
    margin-bottom: 5px;
  }

  #news dd {
    margin-left: 0;
  }

  /* 会社概要 */
  #company th,
  #company td {
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  #company th {
    border-bottom: none;
  }

  #company td {
    border-top: none;
  }

  /* フッター */
  #footer ul {
    flex-direction: column;
    align-items: center;
  }

  #footer ul li {
    margin: 5px 0;
  }
}