.ocassist-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ヒーローセクション */
.ocassist-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.ocassist-hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.ocassist-hero-title {
  position: absolute;
  top: 50%;
  left: 20%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  font-weight: 600;
  color: #FFF;
  letter-spacing: 0.1em;
  margin: 0;
}

/* メインコンテンツ */
.ocassist-content-wrapper {
  max-width: var(--container-width-standard);
  margin: 0 auto;
  padding: 0 2rem;
  flex: 1;
  text-align: center;
}

/* ロゴ */
.ocassist-logo {
  padding: 4rem 0 2rem;
}

.ocassist-logo img {
  max-width: 500px;
  width: 100%;
  height: auto;
}

/* イントロ */
.ocassist-intro {
  padding: 2rem 0 3rem;
}

.ocassist-intro-title {
  font-size: 2rem;
  font-weight: bold;
  color: #333;
  line-height: 1.8;
  margin: 0;
}

/* 画像 */
.ocassist-image {
  padding: 2rem 0;
}

.ocassist-image img {
  max-width: 100%;
  width: 100%;
  height: auto;
}

/* 矢印 */
.ocassist-cta-button-icon {
  padding: 1rem 0;
}

.ocassist-cta-button-icon img {
  max-width: 80px;
  width: 100%;
  height: auto;
}

/* 動画セクション */
.ocassist-videos {
  padding: 4rem 0 3rem;
  text-align: left;
}

.ocassist-videos-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #e4007f;
  margin: 0 0 2rem 0;
  text-align: left;
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.video-item {
  cursor: pointer;
  transition: transform 0.3s;
}

.video-item:hover {
  transform: translateY(-5px);
}

.video-item-title {
  font-size: 1rem;
  font-weight: bold;
  color: #333;
  margin: 0 0 1rem 0;
  text-align: center;
}

.video-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.video-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  background-color: rgba(0, 0, 0, 0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  transition: background-color 0.3s;
}

.video-item:hover .video-play-icon {
  background-color: rgba(228, 0, 127, 0.9);
}

/* ボタン */
.ocassist-button-container {
  padding: 3rem 0 4rem;
  text-align: center;
}

.ocassist-button {
  display: inline-block;
  background-color: #4A90E2;
  color: #fff;
  text-decoration: none;
  padding: 1.2rem 4rem;
  border-radius: 50px;
  font-size: 1.2rem;
  font-weight: normal;
  transition: all 0.3s;
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.ocassist-button:hover {
  background-color: #357ABD;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

/* 2カラムセクション（灰色背景） */
.ocassist-2col-section {
  width: 100%;
  background-color: #f5f5f5;
  padding: 4rem 0;
}

.ocassist-2col-section .col-2-container {
  max-width: var(--container-width-standard);
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.ocassist-2col-section.reverse .col-2-container {
  direction: rtl;
}

.ocassist-2col-section.reverse .col-2-container > * {
  direction: ltr;
}

.ocassist-2col-section .col-2-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.ocassist-2col-section .col-2-text {
  padding: 0;
}

.col-2-main-title {
  font-size: 1.8rem;
  font-weight: bold;
  color: #333;
  margin: 0 0 1rem 0;
}

.col-2-sub-title {
  font-size: 1.2rem;
  font-weight: normal;
  color: #666;
  margin: 0 0 1.5rem 0;
}

.ocassist-2col-section .col-2-text p {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.9;
  margin: 0;
}

.ocassist-2col-section .col-2-text ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin: 0;
}

.ocassist-2col-section .col-2-text ul li {
  font-size: 0.95rem;
  color: #555;
  line-height: 2;
  margin-bottom: 0.5rem;
}

/* ContactCTAセクション */
.contact-cta-section {
  background-color: #fff;
  padding: 60px 0 80px;
}

.contact-cta-text {
  font-size: 24px;
  color: #333;
  text-align: center;
  margin: 0 0 20px 0;
  font-weight: 400;
}

.contact-buttons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px 30px;
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.button-icon {
  font-size: 1.2em;
}

/* 推奨動作環境 */
.ocassist-environment {
  padding: 4rem 0;
  text-align: center;
}

.environment-title {
  font-size: 2rem;
  font-weight: bold;
  color: #333;
  margin: 0 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #ddd;
  display: inline-block;
}

.environment-subtitle {
  font-size: 1rem;
  color: #666;
  line-height: 1.8;
  margin: 2rem 0 3rem 0;
}

.environment-table {
  width: 100%;
  max-width: 800px;
  margin: 0 auto 3rem;
  border-collapse: collapse;
  border: 2px solid #ccc;
}

.environment-table thead th {
  background-color: #ddd;
  padding: 1rem;
  font-size: 1rem;
  font-weight: bold;
  color: #333;
  border: 1px solid #ccc;
}

.environment-table tbody td {
  padding: 1.2rem 1rem;
  font-size: 0.95rem;
  color: #555;
  line-height: 1.8;
  border: 1px solid #ccc;
  text-align: center;
}

.environment-table .table-label {
  background-color: #f5f5f5;
  font-weight: bold;
  color: #333;
}

.environment-notes {
  text-align: left;
  max-width: 800px;
  margin: 0 auto;
}

.environment-notes p {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

.environment-notes .note-detail {
  color: #999;
  padding-left: 1rem;
}

/* 動画ポップアップ */
.video-popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  cursor: pointer;
}

.video-popup-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  cursor: default;
}

.video-popup-content video {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
}

.video-popup-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 3rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: opacity 0.3s;
}

.video-popup-close:hover {
  opacity: 0.7;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .ocassist-hero-title {
    font-size: 2rem;
    left: 5%;
  }

  .ocassist-content-wrapper {
    padding: 0 1.5rem;
  }

  .ocassist-logo {
    padding: 3rem 0 1.5rem;
  }

  .ocassist-logo img {
    max-width: 350px;
  }

  .ocassist-intro {
    padding: 1.5rem 0 2rem;
  }

  .ocassist-intro-title {
    font-size: 1.5rem;
  }

  .ocassist-image {
    padding: 1.5rem 0;
  }

  .ocassist-cta-button-icon {
    padding: 0.5rem 0;
  }

  .ocassist-cta-button-icon img {
    max-width: 60px;
  }

  .ocassist-videos {
    padding: 3rem 0 2rem;
  }

  .ocassist-videos-title {
    font-size: 1.3rem;
  }

  .videos-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .video-item-title {
    font-size: 0.9rem;
  }

  .video-play-icon {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  .ocassist-button-container {
    padding: 2rem 0 3rem;
  }

  .ocassist-button {
    padding: 1rem 3rem;
    font-size: 1rem;
  }

  .video-popup-close {
    top: 10px;
    right: 10px;
  }

  .ocassist-2col-section {
    padding: 3rem 0;
  }

  .ocassist-2col-section .col-2-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0 1.5rem;
  }

  .ocassist-2col-section.reverse .col-2-container {
    direction: ltr;
  }

  .col-2-main-title {
    font-size: 1.5rem;
  }

  .col-2-sub-title {
    font-size: 1.1rem;
  }

  .ocassist-2col-section .col-2-text ul li {
    font-size: 0.9rem;
  }

  /* ContactCTA レスポンシブ */
  .contact-cta-section {
    padding: 50px 0 60px;
  }

  .contact-cta-text {
    font-size: 14px;
    margin-bottom: 30px;
  }

  .contact-buttons-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-cta-button {
    padding: 18px 24px;
    font-size: 15px;
  }

  .ocassist-environment {
    padding: 3rem 0;
  }

  .environment-title {
    font-size: 1.5rem;
  }

  .environment-subtitle {
    font-size: 0.9rem;
    margin: 1.5rem 0 2rem 0;
  }

  .environment-table {
    font-size: 0.85rem;
  }

  .environment-table thead th {
    padding: 0.8rem 0.5rem;
    font-size: 0.9rem;
  }

  .environment-table tbody td {
    padding: 0.8rem 0.5rem;
    font-size: 0.85rem;
  }

  .environment-notes {
    padding: 0 1rem;
  }

  .environment-notes p {
    font-size: 0.8rem;
  }
}