/* =======================================================================
   REM CONVERSION CHEATSHEET (1rem = 16px)
   - 基本式: rem = px / 16
   - ユーティリティ命名例（あなたの方式）:
       0.25rem -> 025 / 1rem -> 100 / 1.25rem -> 125 / 1.5rem -> 150 …等
   -----------------------------------------------------------------------
   |  px  |   rem   | code |  px  |   rem   | code |  px  |   rem   | code |
   |------|---------|------|------|---------|------|------|---------|------|
   |   4  | 0.25rem | 025  |  36  | 2.25rem | 225  |  80  | 5.00rem | 500  |
   |   8  | 0.50rem | 050  |  40  | 2.50rem | 250  |  96  | 6.00rem | 600  |
   |  12  | 0.75rem | 075  |  48  | 3.00rem | 300  | 112  | 7.00rem | 700  |
   |  16  | 1.00rem | 100  |  56  | 3.50rem | 350  | 128  | 8.00rem | 800  |
   |  20  | 1.25rem | 125  |  64  | 4.00rem | 400  |      |         |      |
   |  24  | 1.50rem | 150  |  72  | 4.50rem | 450  |      |         |      |
   |  28  | 1.75rem | 175  |      |         |      |      |         |      |
   |  32  | 2.00rem | 200  |      |         |      |      |         |      |
   -----------------------------------------------------------------------
   よく使う値:
     20px=1.25rem(125), 28px=1.75rem(175), 36px=2.25rem(225), 40px=2.5rem(250),
     48px=3rem(300), 64px=4rem(400)
   補足:
     ・ユーティリティ例: .u-mb-125 { margin-bottom: 1.25rem !important; }
     ・細かい値が必要なときは 062=0.625rem(10px) などを個別に追加
   ======================================================================= */
@charset "UTF-8";
:root {
  --color-base: #fff;
  --color-main-char: #252525;
}
html,
body {
  font-family: -apple-system, BlinkMacSystemFont, system-ui, /* iOS/macOS UI */ "Hiragino Sans", "Hiragino Kaku Gothic ProN", /* mac系 */ "Yu Gothic UI", "Yu Gothic", "Meiryo", /* Windows */ Arial,
    sans-serif;
  font-style: normal;
  line-height: 1.5;
  scroll-behavior: smooth;
  color: var(--color-main-char);
  background-color: var(--color-base);
  overflow-x: hidden;
  width: 100%;
}
@media screen and (max-width: 768px) {
  html,
  body {
    font-size: 52%;
  }
}
body .sp-item {
  display: none !important;
}
@media screen and (max-width: 768px) {
  body .sp-item {
    display: block !important;
  }
}
body .pc-item {
  display: block !important;
}
@media screen and (max-width: 768px) {
  body .pc-item {
    display: none !important;
  }
}
a {
  text-decoration: underline;
}
.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
  overflow-x: hidden;
}
@media screen and (max-width: 768px) {
  .container {
    max-width: 750px;
  }
}
img {
  width: 100%;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
h1 {
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  margin: 2em auto;
}
@media screen and (max-width: 768px) {
  h1 {
    font-size: 3rem;
  }
}
h2 {
  font-size: 1.25rem;
  font-weight: bold;
  margin: 2em auto 1em;
}
@media screen and (max-width: 768px) {
  h2 {
    font-size: 2.25rem;
  }
}
p {
  font-size: 1rem;
  margin: 0 0 0.5em 0;
  text-align: justify;
}
p strong {
  font-weight: bold;
}
@media screen and (max-width: 768px) {
  p {
    font-size: 1.75rem;
  }
}
ul {
  list-style: disc;
}
li {
  font-size: 1rem;
  margin: 0 0 0.5em 2em;
}
@media screen and (max-width: 768px) {
  li {
    font-size: 1.75rem;
  }
}
footer p {
  text-align: center;
  margin: 2rem 0;
  font-size: 0.75rem;
}
@media screen and (max-width: 768px) {
  footer p {
    font-size: 1.25rem;
  }
}