.header-logo img {
  display: block;
  width: 92px;
  height: auto;
}

.header-right {
  text-align: right;
}

.header-right a {
  color: #333;
  font-size: 1.8rem;
  font-weight: 700;
}

.header-right a:hover,
.header-right a:focus {
  color: #28905a;
}

.seo-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.seo-intro {
  padding: 34px 20px 26px;
  background: #f5faf6;
}

.seo-intro-inner {
  max-width: 1100px;
}

.seo-intro h1 {
  margin: 0 0 14px;
  font-size: 3.2rem;
  color: #1f3e2b;
  line-height: 1.35;
}

.seo-intro p {
  margin: 0;
  color: #506255;
  line-height: 1.9;
}

.seo-chip-list {
  margin: 18px 0 0;
  padding: 0;
}

.seo-chip-list li {
  display: inline-block;
  margin: 0 10px 10px 0;
  padding: 8px 14px;
  border-radius: 20px;
  background: #fff;
  border: 1px solid #d7e8dc;
  color: #235439;
  list-style: none;
}

.seo-case-body {
  display: block;
}

.seo-text-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 10px 20px 50px;
}

.seo-text-box,
.seo-contact-list {
  padding: 26px 30px;
  background: #f8fbf9;
  border: 1px solid #e2ece6;
  color: #47584d;
  line-height: 1.9;
}

.seo-text-box p:last-child {
  margin-bottom: 0;
}

.seo-contact-list div + div {
  margin-top: 10px;
}

.seo-contact-list a {
  color: #28905a;
}

.footer .footer-pc img {
  max-width: 172px;
  height: auto;
}

@media (max-width: 768px) {
  .seo-intro {
    padding: 24px 16px 18px;
  }

  .seo-intro h1 {
    font-size: 2.4rem;
  }

  .seo-text-section {
    padding: 0 16px 36px;
  }

  .seo-text-box,
  .seo-contact-list {
    padding: 18px;
  }
}