* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "ヒラギノ角ゴシック", "游ゴシック", sans-serif;
  background-color: #fff;
  font-size: large;
}
header {
  margin: auto;
  max-width: 920px;
  display: flex;
  background-color: #4f9efc;
  margin-bottom: 5px;
}
#header-column {
  width: 100%;
  padding: 10px 20px;
}
.right {
  float: right;
}
.d-none {
  display: none;
}
img.logo {
  width: 270px;
  height: auto;
  border-radius: 15px;
  padding: 5px 10px;
  background-color: #fff;
  box-shadow: 0px 0px 5px 2px #bcdefc inset;
}
header a:link,
header a:visited,
header span {
  color: #fff;
}
a:hover {
  font-weight: bold;
}
.bold {
  font-weight: bold;
}
main {
  max-width: 920px;
  margin: 0 auto 10px auto;
  background-color: #e8f3ff;
  display: block;
  padding: 10px 0 20px 0;
}
#main-title {
  font-weight: bold;
  text-align: center;
  margin: 0;
  font-size: 1.7rem;
}
.section {
  width: 90%;
  margin: 3% auto;
}
.section-title {
  font-weight: bold;
  font-size: 1.4rem;
}
.section-wrapper {
  width: 90%;
  margin-left: auto;
  margin-right: auto;
}
.section-heading {
  margin: 2% 0;
}
.wrapper-inner {
  display: flex;
}
.purpose-text {
  width: 70%;
}
.purpose-img {
  width: 30%;
  padding: 40px 10px;
}
.section-text img.bait-box {
  width: 100%;
  height: auto;
}

.link:link,
.link:visited {
  color: #3700ff;
}
.form {
  margin: 3%;
}
.button {
  color: #fff;
  border-radius: 2px;
  background-color: #2d6fc0;
  box-shadow: 0px 0px 5px 1px #999999;
  padding: 5px 10px;
  text-decoration: none;
}
.button:hover {
  font-weight: bolder;
  opacity: 0.8;
  box-shadow: 0px 0px 5px 2px #999999;
}
.qa-item {
  border-bottom: 1px solid #ccc;
  padding: 12px 0;
}
.question {
  display: flex;
  align-items: flex-start;
  cursor: pointer;
  user-select: none;
}
.label {
  flex: 0 0 40px;
  font-weight: bold;
}
.q-text {
  flex: 1;
  display: flex;
  align-items: center;
}
.openButton {
  width: 20px;
  height: 20px;
  margin-left: 6px;
  transform: 0.3s;
}
.openButton.rotated {
  transform: rotate(180deg);
}
.answer {
  display: flex;
  align-items: flex-start;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.answer.open {
  max-height: 500px;
  margin-top: 6px;
}
.answer .a-text {
  flex: 1;
}

footer {
  display: block;
  text-align: center;
  margin: 10px;
}
hr {
  max-width: 920px;
  margin: 0 auto;
}
.copyright {
  text-align: center;
  font-size: small;
  margin-top: 5px;
}