:root {
  --text-base-color: #000000;
  --text-emphasis-color: #fc0202;
  --accent-color: #4da500;
  --sub-color1: #ffeb55;
  --sub-color2: #fc6c02;
  --background-color1: #fcf6c6;
  --background-color2: #eeeeee;
  --sansserif: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W3", "游ゴシック", YuGothic, "メイリオ", Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  --serif: "Hiragino Mincho ProN W3", "ヒラギノ明朝 ProN W3", "Hiragino Mincho ProN", "游明朝", YuMincho, "HG明朝E", "ＭＳ Ｐ明朝", "ＭＳ 明朝", serif;
  --marugothic: "ヒラギノ丸ゴ Pro W4","ヒラギノ丸ゴ Pro","Hiragino Maru Gothic Pro","ヒラギノ角ゴ Pro W3","Hiragino Kaku Gothic Pro","HG丸ｺﾞｼｯｸM-PRO","HGMaruGothicMPRO", sans-serif;
  font-size: 62.5%;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text-base-color);
  font-family: var(--sansserif);
  font-size: 1.6rem;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%; /* Safari */
}

h1 {
  font-size: 2.8rem;
}

h2 {
  font-size: 4rem;
  text-align: center;
}

h3 {
  font-size: 2.1rem;
}

h4 {
  font-size: 1.8rem;
}

h1,
h2 {
  margin: 0;
  line-height: 1.25;
}

h3,
h4,
h5,
h6 {
  margin: 0;
  line-height: 1.25;
}

p {
  margin-bottom: 0;
  line-height: 1.5;
}

img,
video {
  max-width: 100%;
  height: auto;
  vertical-align: top;
}

figure {
  margin: 0;
  text-align: center;
  line-height: 0;	
}

figcaption {
  font-size: 1.2rem;
}

nav ul {
  margin: 0;
  padding-left: 0;
  list-style-type: none;
}

address {
  font-style: normal;
}

iframe {
  border: none;
}

button {
  padding: 0;
  background-color: transparent;
  border: none;
}

input,
textarea {
  padding: 9px;
  width: 100%;
  font-size: 1.6rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="password"],
textarea {
  background-color: #ffffff;
  border: solid 1px #999999;
  border-radius: 4px;
}

input[type="radio"],
input[type="checkbox"] {
  width: auto;
}

select {
  padding: 6px 9px;
  height: 40px;
  color: var(--text-base-color);
  font-size: 1.5rem;
  background-color: #ffffff;
  border: solid 1px #999999;
  border-radius: 4px;
}

  @media (max-width: 639px) {
  h2 {
    font-size: 2.4rem;
  }
  input,
  textarea {
    padding: 6px;
  }
}