body {
  margin: 0;
  font-family: "Noto Sans JP", "Helvetica Neue", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background-color: #fff;
  color: #333;
}
header {
  background-color: #FA808B;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  flex-wrap: wrap;
}
.logo img {
  height: 50px;
}
nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}
.main-visual {
  background-color: #FF9B64;
  color: white;
  text-align: center;
  padding: 60px 20px;
}
.main-visual h1 {
  font-size: 1.8em;
  white-space: pre-line;
}
.main-visual p {
  margin-top: 10px;
  font-size: 1.1em;
}
.section-top {
  padding: 2px 20px;
  text-align: center;
}
.section-top h2 {
  font-size: 1.6em;
  margin-bottom: 20px;
  color: #FA808B;
}
.section-profile {
 padding: 2px 20px;
 max-width: 900px;
 margin: 0 auto;
}
.section-profile ul {
 list-style: none;
 padding: 0;
}
.section-profile ul li::before {
 content: "\25A0 ";
 color: #FA808B;
 margin-right: 6px;
}
.services {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
}
.service {
  width: 250px;
  border: 1px solid #eee;
  border-radius: 10px;
  padding: 20px;
  background-color: #fff7f7;
}
.service img {
  width: 60px;
  margin-bottom: 10px;
}
.service h3 {
  margin: 10px 0 5px;
}
.challenge-message {
  text-align: center;
  font-size: 1.2em;
  margin-top: 30px;
  color: #555;
  font-style: italic;
}
.box30 {
  margin: 2em 0;
  background:  #fffafa;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.22);
}
.box30 .box-title {
  font-size: 1.2em;
  background: #FA808B;
  padding: 4px;
  text-align: center;
  color: #FFF;
  font-weight: bold;
  letter-spacing: 0.05em;
}
.box30 p {
  padding: 15px 20px;
  margin: 0;
}
.about, .contact {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}
.contact a {
  color: #FA808B;
  text-decoration: underline;
}
.sns-icons a {
  display: inline-block;
}
.sns-icons img {
  width: 30px;
 margin: 0 10px;
 vertical-align: middle;
}
.sns-icons a img:hover {
  opacity: 0.7;
  transform: scale(1.1);
  transition: all 0.3s ease;
}
footer {
  background-color: #f2f2f2;
  color: #777;
  text-align: center;
  padding: 20px;
  font-size: 0.9em;
}
@media (max-width: 600px) {
  .services {
 flex-direction: column;
 align-items: center;
  }
  .service {
 width: 90%;
  }
}
@media screen and (max-width: 600px) {
  nav {
 display: flex;
 flex-direction: column;
 align-items: center;
  }
  nav a {
 margin: 5px 0;
  }
}