*,
*::before,
::after {
  box-sizing: border-box;
}

body {
  font-family: Noto Sans JP;
  margin: 0;
}

.container {
  display: flex;
  flex-direction: column;
  -webkit-box-align: center;
  align-items: center;
  background-color: rgb(175, 175, 175);
}

.parent {
  max-width: 800px;
  width: 100%;
  background-color: rgb(248, 251, 255);
}

header {
  background-color: rgb(126, 146, 219);
  width: 100%;
  height: 56px;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  position: fixed;
  top: 0px;
  z-index: 2;
  max-width: 800px;
}

.logo {
  display: inline-block;
  overflow: hidden;
  background: none;
  width: 168px;
  height: 32px;
}

.logo>img {
  min-width: 100%;
  max-width: 100%;
  min-height: 100%;
  max-height: 100%;
}

.content {
  margin-top: 56px;
  min-height: calc(-56px + 100vh);
  padding: 24px 16px 60px;
  box-sizing: border-box;
}

.title {
  font-size: 20px;
  line-height: 30px;
  color: rgb(45, 45, 45);
}

.introduction {
  margin-top: 16px;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
}

.section {
  margin-top: 40px;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
}

.section>h2 {
  font-weight: 700;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
}

.section>div {
  margin-top: 24px;
  font-weight: 400;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
}

ol {
  display: block;
  list-style-type: decimal;
  margin-block-start: 1em;
  margin-block-end: 1em;
  margin-inline-start: 0px;
  margin-inline-end: 0px;
  padding-inline-start: 40px;
  unicode-bidi: isolate;
}

.section>ol {
  list-style-type: decimal;
  padding-left: 16px;
  font-weight: 400;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
  margin-top: 24px;
}

.section>ol>li {
  font-weight: 400;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
  margin-top: 24px;
}

.section>ol>ol,
.section>ol>ol>ol {
  padding-left: 20px;
  margin-block-start: 0px;
  margin-block-end: 0px;
}

.section>ol>ol>ol {
  list-style-type: lower-alpha;
}

.section>ol>ol>li,
.section>ol>ol>ol>li {
  margin-top: 8px;
  font-weight: 400;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.02em;
  color: rgb(124, 124, 124);
  position: relative;
  display: list-item;
  text-align: -webkit-match-parent;
  unicode-bidi: isolate;
}

.section>ol>ol>li:first-child,
.section>ol>ol>ol>li:first-child {
  margin-top: 16px;
}

.section>ol>ol>li {
  list-style-type: none;
  counter-increment: cnt 1;
}

.section>ol>ol>li::before {
  content: "(" counter(cnt) ") ";
  display: inline-block;
  margin-left: -3.5em;
  width: 3em;
  text-align: right;
  position: absolute;
  top: 0px;
  left: 0px;
}