body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f8f9fa;
    color: #222;
  }
  header {
    background: #222;
    color: #fff;
    padding: 0.5rem 0;
  }
  .header-flex {
    display: flex;
    align-items: center;
    justify-content: flex-start;
  }
  .logo {
    height: 100%;
    max-height: 60px;
    width: auto;
  }
  nav {
    margin-left: auto;
  }
  nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.2s;
  }
  nav a:hover {
    color: #00bcd4;
  }
  .container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
  }
  .hero {
    margin: 2rem 0;
  }
  .hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 0 1rem;
  }
  .hero-text {
    flex: 1;
  }
  .hero-title {
    color: #333;
    font-size: 2.2rem;
    font-weight: bold;
    margin: 0;
    line-height: 1.2;
  }
  .hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  .download-btn-platform {
    display: inline-block;
    background: #00bcd4;
    color: #fff;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    white-space: nowrap;
  }
  .download-btn-platform:hover {
    background: #0097a7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }
  @media (max-width: 768px) {
    .hero-content {
      flex-direction: column;
      align-items: flex-start;
      gap: 1.5rem;
    }
    .hero-title {
      font-size: 1.8rem;
    }
    .hero-buttons {
      width: 100%;
      justify-content: flex-start;
    }
    .download-btn-platform {
      flex: 1;
      text-align: center;
      min-width: 140px;
    }
  }
  .video-container {
    position: relative;
    display: block;
    width: 100%;
    margin: 0;
  }
  .hero-media {
    width: 100%;
    height: auto;
    border-radius: 0;
    box-shadow: none;
  }
  .downloads {
    text-align: center;
    margin: 2rem 0;
  }
  .download-btn {
    display: inline-block;
    background: #00bcd4;
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.2rem;
    margin-top: 1rem;
    transition: background 0.2s;
  }
  .download-btn:hover {
    background: #0097a7;
  }
  .about {
    padding: 2rem 0;
  }
  .about-content {
    max-width: 800px;
    margin: 0;
    line-height: 1.6;
  }
  .about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
  }
  .about-content a {
    color: #00bcd4;
    text-decoration: none;
  }
  .about-content a:hover {
    text-decoration: underline;
  }
  .downloads-page {
    padding: 2rem 0;
  }
  .download-section {
    text-align: left;
    margin: 2rem 0;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 12px;
  }
  .download-section h2 {
    margin-bottom: 0.5rem;
  }
  .download-description {
    color: #666;
    margin-bottom: 0.5rem;
  }
  .requirements-link {
    margin-top: 0.5rem;
    text-align: left;
  }
  .requirements-link a {
    color: #00bcd4;
    text-decoration: none;
    font-size: 0.9rem;
  }
  .requirements-link a:hover {
    text-decoration: underline;
  }
  .requirements-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
  }
  .requirements-card {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  }
  .requirements-card h3 {
    color: #00bcd4;
    margin-bottom: 1rem;
  }
  .requirements-card ul {
    list-style: none;
    padding: 0;
  }
  .requirements-card li {
    margin-bottom: 0.8rem;
    line-height: 1.5;
  }
  .requirements-card strong {
    color: #333;
  }
  .note {
    margin-top: 1rem;
    padding: 1rem;
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    border-radius: 4px;
    font-size: 0.9rem;
  }
  .note a {
    color: #00bcd4;
    text-decoration: none;
  }
  .note a:hover {
    text-decoration: underline;
  }
  @media (max-width: 768px) {
    .requirements-section {
      grid-template-columns: 1fr;
    }
  }
  .requirements-page {
    padding: 2rem 0;
  }
  .requirements-page h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
  }
  .videos-page {
    padding: 2rem 0;
  }
  .videos-page h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
  }
  .privacy-page {
    padding: 2rem 0;
  }
  .privacy-page h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
  }
  .privacy-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
  }
  .privacy-content h2 {
    color: #333;
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #00bcd4;
    padding-bottom: 0.5rem;
  }
  .privacy-content h3 {
    color: #555;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
  }
  .privacy-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
  }
  .privacy-content li {
    margin-bottom: 0.5rem;
  }
  .privacy-content hr {
    margin: 2rem 0;
    border: none;
    border-top: 1px solid #ddd;
  }
  .privacy-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  }
  .privacy-table th {
    background: #00bcd4;
    color: #fff;
    padding: 1rem;
    text-align: left;
    font-weight: bold;
  }
  .privacy-table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
  }
  .privacy-table tr:nth-child(even) {
    background: #f8f9fa;
  }
  .privacy-table tr:hover {
    background: #e3f2fd;
  }
  .videos-section {
    max-width: 800px;
    margin: 0 auto;
  }
  .video-item {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
  }
  .video-item h2 {
    color: #333;
    margin-bottom: 1rem;
  }
  .video-description {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
  }
  .video-link {
    display: inline-block;
    background: #00bcd4;
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.1rem;
    transition: background 0.2s;
  }
  .video-link:hover {
    background: #0097a7;
  }
  .instagram-section {
    text-align: center;
    padding: 3rem 0;
    margin-top: 2rem;
  }
  .instagram-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    transition: transform 0.3s ease;
    margin-bottom: 2rem;
  }
  .instagram-link:hover {
    transform: scale(1.05);
  }
  .instagram-hashtag {
    font-size: 3.5rem;
    font-weight: bold;
    color: #333;
    margin: 0;
    letter-spacing: 2px;
    transition: color 0.3s ease;
  }
  .instagram-link:hover .instagram-hashtag {
    color: #00bcd4;
  }
  .instagram-feed-container {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding: 0 1rem;
  }
  .instagram-feed-placeholder {
    text-align: center;
    padding: 3rem 2rem;
    background: #f8f9fa;
    border-radius: 12px;
    color: #666;
  }
  .instagram-feed-placeholder p {
    margin: 0.5rem 0;
  }
  .placeholder-note {
    font-size: 0.9rem;
    color: #999;
    font-style: italic;
  }
  .snapwidget-widget {
    width: 100%;
    min-height: 400px;
  }
  @media (max-width: 768px) {
    .instagram-hashtag {
      font-size: 2.5rem;
    }
    .instagram-feed-container {
      padding: 0 0.5rem;
    }
  }
  footer {
    background: #222;
    color: #fff;
    padding: 1rem 0;
    margin-top: 2rem;
  }
  .footer-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
  }
  footer a {
    color: #00bcd4;
    text-decoration: none;
    margin: 0 1rem;
  }
  footer a:hover {
    text-decoration: underline;
  }
  @media (max-width: 600px) {
    .header-flex, .footer-flex {
      flex-direction: column;
      align-items: flex-start;
    }
    nav a {
      margin: 0.5rem 0 0 0;
      display: block;
    }
  }