html, body {
  margin: 0;
  padding: 0;
  background: #f5f2eb;
  color: #282622;
}

body {
  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    "Hiragino Mincho Pro",
    "Noto Serif JP",
    serif;
}

a,
a:visited {
  color: #282622;
}


/* =========================
   PAGE
========================= */

.hyouhon-guide {
  box-sizing: border-box;
  width: min(88%, 680px);
  margin: 8vh auto;
  padding: 3.5em 2.8em 3em;
  border: 1px solid rgba(40, 38, 34, 0.38);
}


/* =========================
   TITLE
========================= */

.guide-title {
  margin: 0 0 3em;
  text-align: center;

  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
}


/* =========================
   BODY
========================= */

.guide-body {
  font-size: 0.84rem;
  line-height: 2.1;
  letter-spacing: 0.045em;
}

.guide-about p {
  margin: 0 0 2em;
}

.guide-about p:last-child {
  margin-bottom: 0;
}


/* =========================
   DIVIDER
========================= */

.guide-rule {
  width: 100%;
  height: 1px;

  margin: 3em 0 2.7em;

  background: rgba(40, 38, 34, 0.18);
}


/* =========================
   AUTHOR
========================= */

.guide-author-line {
  display: flex;
  align-items: baseline;
  gap: 1.5em;

  margin-bottom: 1.8em;
}

.guide-name {
  font-size: 0.9rem;
  letter-spacing: 0.14em;
}

.guide-link {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: rgba(40, 38, 34, 0.58);
  border-bottom: 1px solid rgba(40, 38, 34, 0.3);
  padding-bottom: 2px;
}

.guide-author p {
  margin: 0 0 1.7em;
}

.guide-pixiv-note {
  font-size: 0.76rem;
  color: rgba(40, 38, 34, 0.62);
}


/* =========================
   BACK
========================= */

.guide-back {
  margin-top: 4em;
  padding-top: 2em;

  border-top: 1px solid rgba(40, 38, 34, 0.16);

  text-align: center;

  font-size: 0.8rem;
  letter-spacing: 0.12em;
}

.guide-back a {
  text-decoration: none;

  padding-bottom: 4px;
  border-bottom: 1px solid rgba(40, 38, 34, 0.4);
}

.guide-back a:hover {
  opacity: 0.6;
}


/* =========================
   MOBILE
========================= */

@media (max-width: 600px) {

  .hyouhon-guide {
    width: 88%;
    margin: 4vh auto;
    padding: 2.5em 1.7em 2.6em;
  }

  .guide-title {
    margin-bottom: 2.5em;

    font-size: 1.2rem;
  }

  .guide-body {
    font-size: 0.78rem;
    line-height: 2.05;
  }

  .guide-about p {
    margin-bottom: 1.8em;
  }

  .guide-rule {
    margin: 2.6em 0 2.3em;
  }

  .guide-author-line {
    gap: 1.2em;
    margin-bottom: 1.6em;
  }

  .guide-name {
    font-size: 0.84rem;
  }

  .guide-link {
    font-size: 0.68rem;
  }

  .guide-author p {
    margin-bottom: 1.6em;
  }

  .guide-pixiv-note {
    font-size: 0.72rem;
  }

  .guide-back {
    margin-top: 3em;
    padding-top: 1.8em;

    font-size: 0.76rem;
  }
}