section#introduction {
  padding-top: 40px;
  padding-bottom: 52px;
}

section#introduction p {
  margin-top: 10px;
  font-size: 18px;
  line-height: 2;
}

/* 探す */
.search-container {
  /* display: block; */
  /* 探す機能が未整備のため非表示 */
  display: none;
}

.search-container h2 small {
  font-weight: normal;
}

.search-container ul {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 20px;
  margin-top: 16px;
  margin-bottom: 65px;
}

.search-container ul li a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  border-radius: 24px;
  padding: 10px 28px;
  text-decoration: none;
}

/* タグから探す */
.search-container#tags ul li a {
  background-color: #515151;
  transition: background-color 0.2s ease;
}

.search-container#tags ul li a:hover {
  background-color: #b2b2b2;
}

/* 業種から探す */
.search-container#service ul li a {
  background-color: #00488c;
  transition: background-color 0.2s ease;
}

.search-container#service ul li a:hover {
  background-color: #0066cc;
}

.search-container#service ul li a img {
  width: 26px;
  height: auto;
  max-width: none;
}

/* 開発領域から探す */
.search-container#devs ul li a {
  display: inline-block;
  background-color: #22d2da;
  transition: 0.2s ease;
}

.search-container#devs ul li a:hover {
  opacity: 0.6;
}

/* 技術・ツールから探す */
.search-container#techs ul li a {
  display: inline-block;
  background-color: #22d2da;
  transition: 0.2s ease;
}

.search-container#techs ul li a:hover {
  opacity: 0.8;
}

/* 実績 */
.project-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 40px 24px; /* 上下・左右の間隔 */
  max-width: 1500px;
  margin: 0 auto 120px;
}

.project-card {
  width: 100%;
  background-color: #fff;
  font-family: "Noto Sans JP", sans-serif;
}

.project-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.project-image iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
}

.project-image-hp {
  border: 2px solid #e2e2e2;
  display: inline-block;
}

.project-image-hp img {
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.project-content {
  padding: 16px 8px 24px;
}

.project-content-yt {
  padding: 10px 8px 24px;
}

.project-content p {
  font-size: 16px;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid #1e4a8a;
  padding-bottom: 6px;
  margin-bottom: 16px;
}

.project-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: #000;
  margin: 0;
}

.project-btn {
  /* display: inline-block; */
  /* 遷移先が未整備のため非表示 */
  display: none;
  background-color: #1e4a8a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border-radius: 20px;
  padding: 4px 70px 5px;
  transition: 0.2s;
}

.project-btn::before {
  content: ">";
  margin-right: 0.5em;
}

.project-btn:hover {
  opacity: 0.85;
}

.project-tags {
  /* display: flex; */
  /* タグ機能が未整備のため非表示 */
  display: none;
  flex-wrap: wrap;
  gap: 10px 12px;
  padding-top: 10px;
}

.project-tags li {
  display: inline-block;
  background-color: #fff;
  color: #333;
  border: 1px solid #ccc;
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  white-space: nowrap;
}

@media (min-width: 769px) {
  .project-card {
    width: calc(50% - 12px); /* gap分を考慮して2等分 */
    background-color: #fff;
    font-family: "Noto Sans JP", sans-serif;
  }
}