.sonnect-brand-section {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  padding: 30px 5%;
  margin-top: 80px;
}

.sonnect-brand-content {
  max-width: 1140px;
  margin: 0 auto;
  text-align: center;
}

.sonnect-logo {
  max-width: 250px;
  margin: 0 auto 30px;
}

.sonnect-logo img {
  width: 100%;
  height: auto;
  filter: brightness(0) invert(1);
}

.sonnect-nav {
  background: #f8f8f8;
  border-bottom: 3px solid #e74c3c;
  position: sticky;
  top: 80px;
  z-index: 100;
  margin-bottom: 60px;
}

.sonnect-nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.sonnect-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}

.sonnect-menu li {
  position: relative;
}

.sonnect-menu li a {
  display: block;
  padding: 15px 25px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
  position: relative;
}

.sonnect-menu li a:hover {
  background: white;
  color: #e74c3c;
}

.sonnect-menu li.active a {
  background: white;
  color: #e74c3c;
}

.sonnect-menu li.active a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #e74c3c;
}

.sonnect-menu li.store-button a {
  background: #e74c3c;
  color: white;
  margin-left: 20px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sonnect-menu li.store-button a:hover {
  background: #c0392b;
  transform: translateY(-2px);
}

.sonnect-menu li.store-button img {
  width: 20px;
  height: 20px;
  filter: brightness(0) invert(1);
}

.hero-section {
  background: linear-gradient(135deg, #34495e, #2c3e50);
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  position: relative;
}

.hero-content {
  text-align: center;
  color: white;
  max-width: 900px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 300;
  margin-bottom: 30px;
  line-height: 1.3;
}

.hero-content p {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: #e74c3c;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: all 0.3s;
  font-weight: bold;
}

.cta-button:hover {
  background: #c0392b;
  transform: translateY(-2px);
}

.cta-button.secondary {
  background: white;
  color: #333;
}

.cta-button.secondary:hover {
  background: #f8f8f8;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  padding: 80px 20px;
  max-width: 1140px;
  margin: 0 auto;
}

.product-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
  text-decoration: none;
  color: inherit;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.product-card-content {
  padding: 30px;
}

.product-card h3 {
  font-size: 24px;
  margin-bottom: 15px;
  color: #333;
}

.product-card .price {
  font-size: 18px;
  color: #e74c3c;
  font-weight: bold;
  margin-bottom: 10px;
}

.product-card p {
  color: #666;
  line-height: 1.6;
  font-size: 14px;
}

.brand-info-section {
  background: #f0f0f0;
  padding: 40px;
  margin: 80px auto 0;
  text-align: center;
}

.brand-info-section p {
  color: #666;
  font-size: 14px;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

.hero-image {
  position: relative;
  width: 100%;
  height: 450px;
  overflow: hidden;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  opacity: 0.95;
}

.hero-overlay {
  position: absolute;
  bottom: 40px;
  right: 40px;
  z-index: 10;
}

.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  background: white;
  color: #333;
  padding: 20px 35px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  transition: all 0.3s;
  font-size: 16px;
}

.product-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.product-cta .price-tag {
  color: #e74c3c;
  font-size: 18px;
  font-weight: bold;
}

.product-cta .cart-icon {
  width: 20px;
  height: 20px;
  filter: none;
}

.container_1140px {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.contents h1 {
  font-size: 48px;
  margin-bottom: 20px;
  font-weight: 300;
  color: #333;
  margin-top: 60px;
}

.contents h2 {
  font-size: 28px;
  margin: 60px 0 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid #e74c3c;
  color: #333;
}

.contents p {
  line-height: 1.8;
  color: #666;
  margin-bottom: 30px;
}

.contents ul {
  list-style: none;
  padding: 0;
  background: white;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  padding: 30px;
}

.contents ul li {
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
  color: #666;
}

.contents ul li:last-child {
  border-bottom: none;
}

.contents b {
  display: block;
  font-size: 18px;
  margin-bottom: 10px;
  color: #333;
}

.content-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 30px auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.iframe-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 40px auto;
  border-radius: 8px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  max-width: 800px;
}

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

.notice {
  background: linear-gradient(135deg, #fff9e6 0%, #fff5d6 100%);
  border-left: 4px solid #f0ad4e;
  padding: 25px;
  margin: 40px 0;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(240, 173, 78, 0.1);
}

.notice p {
  margin: 0;
  color: #856404;
  line-height: 1.8;
}

.features-image {
  width: 100%;
  max-width: 900px;
  margin: 40px auto;
  display: block;
  border-radius: 8px;
}

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

.flex-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.flex-item {
  background: white;
  padding: 0;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.flex-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.flex-item-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #f8f8f8;
}

.flex-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.flex-item:hover .flex-item-image img {
  transform: scale(1.05);
}

.flex-item-content {
  padding: 25px;
}

.flex-item-content b {
  display: block;
  font-size: 18px;
  margin-bottom: 12px;
  color: #333;
}

.flex-item-content p {
  font-size: 14px;
  line-height: 1.8;
  color: #666;
  margin: 0;
}

.gallery-container {
  max-width: 900px;
  margin: 60px auto;
}

.main-gallery-image {
  width: 100%;
  height: 500px;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

.main-gallery-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.gallery-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 12px;
}

.gallery-thumb {
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  background: white;
}

.gallery-thumb:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.gallery-thumb.active {
  box-shadow: 0 5px 20px rgba(231, 76, 60, 0.4);
  transform: scale(1.05);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 768px) {
  body {
    overflow-x: hidden;
  }

  .sonnect-nav {
    position: static;
    margin-bottom: 40px;
  }

  .sonnect-nav-inner {
    padding: 0;
  }

  .sonnect-menu {
    flex-direction: column;
    width: 100%;
  }

  .sonnect-menu li a {
    padding: 12px 20px;
    font-size: 14px;
    border-bottom: 1px solid #e0e0e0;
  }

  .sonnect-menu li.active a::after {
    display: none;
  }

  .sonnect-menu li.store-button a {
    margin-left: 0;
    border-radius: 0;
    justify-content: center;
  }

  .hero-section {
    min-height: calc(100vh - 160px);
  }

  .hero-content h1 {
    font-size: 32px;
  }

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

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .product-cards {
    grid-template-columns: 1fr;
    padding: 60px 20px;
  }

  .hero-image {
    height: 300px;
  }

  .hero-overlay {
    position: relative;
    bottom: auto;
    right: auto;
    text-align: center;
    padding: 20px;
  }

  .product-cta {
    width: 100%;
    justify-content: center;
  }

  .contents h1 {
    font-size: 32px;
    margin-top: 40px;
  }

  .flex-box {
    grid-template-columns: 1fr;
  }

  .main-gallery-image {
    height: 300px;
  }

  .gallery-thumbnails {
    grid-template-columns: repeat(4, 1fr);
  }
}