* {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  font-family: 游ゴシック体, 'Yu Gothic', YuGothic, 'ヒラギノ角ゴシック Pro', 'Hiragino Kaku Gothic Pro', メイリオ, Meiryo, Osaka, 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif;
  min-height: 100vh;
  min-width: 320px;
}

/*common*/
* {
  color: inherit;
}

ul {
  list-style: none;
}

*:focus {
  outline: none;
}

a {
  color: white;
  text-decoration: none;
}

table {
  text-align: left;
  border-collapse: collapse;
  margin: 0 auto 0 auto;
}

table tr {
  border-bottom: solid 1px gainsboro;
}

table th,
table td {
  padding: 10px;
  font-size: 14px;
  max-width: 50%;
}

.clearfix::after {
  content: "";
  display: block;
  clear: both;
}

/*header*/
#site-header .header-inner {
  height: 64px;
  margin-right: auto;
  margin-left: auto;
  max-width: 1200px;
  position: relative;
}

#site-header .nav-wrapper {
  background-color: dodgerblue;
  display: none;
  overflow: hidden;
  padding: 20px 0;
  position: absolute;
  top: 64px;
  width: 100%;
  z-index: 1;
}

#site-header .header-nav {
  align-items: center;
  display: flex;
  justify-content: center;
}

#site-header .header-nav .menu > li {
  text-align: center;
}

#site-header .header-nav .menu > li:not(:first-child) {
  margin-top: 20px;
}

#site-header .header-nav .menu > li > a {
  color: white;
  display: block;
  font-weight: bold;
  height: 20px;
  line-height: 20px;
}

#site-header .header-nav .menu > li > a:hover {
  color: gainsboro;
}

.header-items li:first-child {
  left: 20px;
}

.header-items li:nth-child(2) {
  right: 0;
}

#site-title {
  line-height: 64px;
  position: absolute;
  left: 20px;
}

#site-title img {
  height: 24px;
}

#site-header .nav-button {
  background-color: transparent;
  border: none;
  cursor: pointer;
  position: absolute;
  right: 0;
}

#site-header .nav-button div {
  width: 64px;
  height: 64px;
  position: relative;
}

#site-header .nav-button div span {
  position: absolute;
  height: 1px;
  width: 17px;
  left: 22px;
  transition-duration: 1s;
}

#site-header .nav-button div span:first-child {
  top: 25px;
}

#site-header .nav-button div span:nth-child(2) {
  top: 31px;
}

#site-header .nav-button div span:last-child {
  top: 37px;
}

#site-header.opened .nav-button span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

#site-header.opened .nav-button span:nth-child(2) {
  transform: translateX(-10px);
  opacity: 0;
}

#site-header.opened .nav-button span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/*footer*/
#site-footer {
  margin-top: auto;
  margin-bottom: 20px;
}

#site-footer p {
  font-size: 14px;
  height: 24px;
  line-height: 24px;
  text-align: center;
}