@charset "utf-8";
/* CSS Document */

html,
body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: #222;
  font-size: 62.5%;
  line-height: 1.7;
  position: relative;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);

  /* grid-background効果の追加 */
  width: 100%;
  height: 100vh;
  background-color: #ffffff;
  /* 縦線と横線のグラデーションを重ねる */
  background-image:
    linear-gradient(to right, rgba(0, 102, 255, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 102, 255, 0.18) 1px, transparent 1px);
  /* 格子1マスのサイズ（正方形） */
  background-size: 80px 80px;
}

a {
  display: block;
  color: black;
  text-decoration: none;
}

img {
  image-rendering: auto;
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}

/***** header *****/
header {
  padding: 1.5rem 1rem 0rem;
}

img#header_sp {
  display: block;
  margin: 0 auto;
  padding: 2rem 2.5rem 1.5rem;
  box-sizing: border-box;
  width: 100%;
  max-width: 38rem;
}

img#header_pc {
  display: none;
}

/***** contents *****/

.content_list a {
  line-height: 1;
  min-height: 3.5rem;
  font-size: 1.3rem;
  padding: .6rem 1rem;
  border: .1rem solid #ccc;
  border-top: none;
  background: white;
  display: flex;
  align-items: center;
}

.content_list a:hover {
  background: #fef7f2;
}

.content_list a:hover i,
.content_list a:hover .content_name {
  color: #f36f23;
}

.content_name {
  flex: 1;
  margin-left: 1rem;
  margin-right: 1rem;
  line-height: 1.4;
}



i.fas {
  color: #2cbfeb;
  margin-left: .5rem;
  margin-right: .1rem;
  font-size: 3rem;
}

.contents {
  padding: .5rem 1.5rem;
  box-sizing: border-box;
  margin: 0 auto;
}

/***** footer *****/

.footer {
  margin: 0 auto;
  padding: 1rem 0 1rem;
  margin-top: 3rem;
}

.footer_copy {
  text-align: center;
  font-size: 1.2rem;
  margin-bottom: 0;
}

/* ########### 520px ########### */

@media (min-width:520px) {
  img#header_sp {
    display: none;
  }

  img#header_pc {
    max-width: 48rem;
    width: 100%;
    display: block;
    margin: 2.5rem auto 3.2rem;
    padding-right: .2rem;
  }

  header {
    padding-bottom: 0;
  }

  .accordion {
    padding: .7rem 1.2rem;
  }

  .contents,
  footer {
    margin: 0 auto;
    padding: 0;
    max-width: 56rem;
  }

  .content_list a {
    font-size: 1.4rem;
  }

  .footer_copy {
    margin-top: 1.5rem;
  }
}