.product-navigation .brand-logo,
.product-navigation .brand-logo * {
  border: none !important;
  outline: none !important;
  box-shadow: none !important;
}

.product-navigation .brand-logo a {
  display: inline-block;
  background: transparent !important;
}

.product-navigation .brand-logo img {
  display: block;
  background: transparent !important;
}

.peluso-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  padding-top: 40px;
}

.peluso-container p {
  font-family: "メイリオ", Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "MS Pゴシック", sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: #555;
}

.content-wrapper {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}

.main-content {
  background: #fff;
  padding: 30px;
  border-radius: 8px;
}

.hero-image,
.secondary-image {
  margin: 30px 0;
  text-align: center;
}

.img-fluid {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  transition: opacity 0.3s ease;
}

.brand-intro p,
.brand-description p {
  font-family: "メイリオ", Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "MS Pゴシック", sans-serif;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 20px;
  color: #555;
}

.brand-description {
  margin: 40px 0;
}

.brand-description h2 {
  color: #333;
  font-size: 28px;
  margin-bottom: 20px;
  border-bottom: 2px solid #333;
  padding-bottom: 10px;
}

.product-navigation {
  background: #f8f8f8;
  padding: 20px;
  border-radius: 8px;
  position: sticky;
  top: 94px;
  max-height: calc(100vh - 104px);
  overflow-y: auto;
  transition: top 0.3s ease;
}

.product-navigation::-webkit-scrollbar {
  width: 6px;
}

.product-navigation::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.product-navigation::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 3px;
}

.product-navigation::-webkit-scrollbar-thumb:hover {
  background: #555;
}

.product-navigation .brand-logo {
  text-align: center;
  margin-bottom: 30px;
}

.product-navigation .brand-logo img {
  max-width: 120px;
  height: auto;
}

.nav-section {
  margin-bottom: 30px;
}

.nav-section:last-child {
  margin-bottom: 0;
}

.nav-section h3 {
  font-size: 16px;
  color: #333;
  margin-bottom: 15px;
  font-weight: bold;
  border-bottom: 2px solid #ddd;
  padding-bottom: 8px;
}

.nav-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-section li {
  margin-bottom: 8px;
}

.nav-section a {
  color: #666;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s ease;
  display: block;
  padding: 5px 10px;
  border-radius: 4px;
}

.nav-section a:hover {
  background: #fff;
  color: #333;
  transform: translateX(5px);
}

.nav-section a.active {
  background: #333;
  color: #fff;
}

.product-detail .product-header {
  margin-top: 20px;
  margin-bottom: 30px;
}

.product-detail h1 {
  font-size: 32px;
  color: #333;
  margin-bottom: 10px;
}

.product-subtitle {
  color: #888;
  font-size: 16px;
}

.product-note {
  color: #666;
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 20px;
  display: block;
}

.product-video {
  margin-bottom: 30px;
}

.iframe-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 100%;
}

.iframe-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.product-images {
  margin-bottom: 40px;
}

.main-image {
  margin-bottom: 20px;
  text-align: center;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-image img {
  opacity: 1;
}

.thumbnail-gallery {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.thumbnail-img {
  width: 150px;
  height: auto;
  border: 2px solid #e5e5e5;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0.7;
}

.thumbnail-img:hover {
  border-color: #333;
  opacity: 1;
}

.thumbnail-img.active {
  border-color: #333;
  opacity: 1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.product-section {
  margin-bottom: 40px;
}

.product-section h2 {
  font-size: 24px;
  color: #333;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.product-section h2 i {
  color: #666;
  font-size: 20px;
}

.product-section p {
  font-family: "メイリオ", Meiryo, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "MS Pゴシック", sans-serif;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 15px;
  color: #555;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.spec-table th,
.spec-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #e5e5e5;
}

.spec-table th {
  width: 35%;
  background: #f8f8f8;
  font-weight: normal;
  color: #666;
}

.spec-table td {
  color: #333;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: #333;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 1000;
}

.back-to-top::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 12px solid #fff;
  margin-bottom: 3px;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: #555;
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .peluso-container {
    padding-top: 80px;
  }

  .peluso-container p {
    font-size: 14px;
  }

  .content-wrapper {
    grid-template-columns: 1fr;
  }

  .product-navigation {
    position: static;
    margin-top: 30px;
    max-height: none;
  }

  .product-navigation .brand-logo img {
    max-width: 100px;
  }

  .main-image {
    min-height: 250px;
  }

  .thumbnail-gallery {
    flex-direction: row;
    overflow-x: auto;
    padding: 10px 0;
  }

  .thumbnail-img {
    width: 100px;
    flex-shrink: 0;
  }

  .main-content {
    padding: 20px;
    margin-top: 20px;
  }

  .product-detail h1 {
    font-size: 24px;
  }

  .product-video {
    margin-bottom: 20px;
  }

  .spec-table {
    font-size: 14px;
  }

  .spec-table th,
  .spec-table td {
    padding: 8px;
  }
}