<style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --primary: #2d2a3e;
      --primary-light: #4a4660;
      --accent: #b68b5c;
      --accent-soft: #d4b896;
      --bg-body: #f8f5f1;
      --bg-card: #ffffff;
      --text-primary: #2d2a3e;
      --text-secondary: #4a4640;
      --text-muted: #6e6860;
      --border-light: #e5e0d8;
      --shadow-sm: 0 8px 24px rgba(0,0,0,0.03);
      --shadow-md: 0 18px 36px rgba(0,0,0,0.05);
      --radius-lg: 2.2rem;
      --radius-md: 1.35rem;
      --radius-sm: 0.85rem;
      --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-body);
      color: var(--text-primary);
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 2rem;
    }

    header {
      background: rgba(255, 252, 248, 0.8);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 50;
      padding: 0.8rem 0;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 600;
      letter-spacing: -0.3px;
      color: var(--primary);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }

    .logo span {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    nav {
      display: flex;
      gap: 2rem;
      align-items: center;
    }

    nav a {
      text-decoration: none;
      font-weight: 500;
      color: var(--text-secondary);
      transition: color 0.25s;
      font-size: 0.95rem;
      border-bottom: 2px solid transparent;
      padding-bottom: 0.2rem;
    }

    nav a:hover,
    nav a.active {
      color: var(--accent);
      border-bottom-color: var(--accent-soft);
    }

    .btn-download {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.8rem 2.2rem;
      border-radius: 2.8rem;
      font-weight: 500;
      text-decoration: none;
      display: inline-block;
      transition: background 0.25s, box-shadow 0.25s;
      box-shadow: 0 12px 20px -10px rgba(45, 42, 62, 0.25);
      margin-top: 0.8rem;
    }

    .btn-download:hover {
      background: var(--primary-light);
      box-shadow: 0 16px 26px -10px rgba(45, 42, 62, 0.3);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--accent);
      color: var(--accent);
      padding: 0.7rem 2rem;
      border-radius: 2.5rem;
      font-weight: 500;
      text-decoration: none;
      display: inline-block;
      transition: all 0.25s;
    }

    .btn-outline:hover {
      background: rgba(182, 139, 92, 0.1);
      color: var(--primary);
      border-color: var(--primary);
    }

    main {
      min-height: 80vh;
    }

    section {
      margin: 2.5rem 0;
    }

    h1 {
      font-size: 2.8rem;
      font-weight: 600;
      letter-spacing: -0.5px;
      color: var(--primary);
      margin: 2rem 0 1rem;
    }

    h2 {
      font-size: 2rem;
      font-weight: 600;
      color: #2d2a3e;
      margin-bottom: 1.5rem;
    }

    h3 {
      font-size: 1.4rem;
      font-weight: 600;
      color: #3d394a;
      margin-bottom: 0.8rem;
    }

    .download-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      margin: 1.5rem 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.5rem;
      transition: box-shadow 0.25s;
    }

    .download-card:hover {
      box-shadow: var(--shadow-md);
    }

    .download-info strong {
      display: block;
      font-size: 1.3rem;
      margin-bottom: 0.25rem;
      color: var(--primary);
    }

    .platform-note {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .highlight {
      font-weight: 600;
      color: var(--accent);
      background: rgba(182, 139, 92, 0.1);
      padding: 0.1rem 0.4rem;
      border-radius: 0.3rem;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      margin: 2rem 0;
    }

    .feature-item {
      background: var(--bg-card);
      border-radius: var(--radius-sm);
      padding: 1.5rem;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .changelog {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 2rem;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      margin: 2rem 0;
    }

    .changelog ul {
      list-style: none;
      margin-left: 0;
    }

    .changelog li {
      margin-bottom: 1rem;
      padding-left: 1.5rem;
      position: relative;
    }

    .changelog li::before {
      content: "•";
      position: absolute;
      left: 0;
      color: var(--accent);
      font-weight: bold;
    }

    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 2rem;
      margin: 2rem 0;
    }

    .testimonial {
      background: var(--bg-card);
      border-radius: var(--radius-sm);
      padding: 1.8rem;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .testimonial .author {
      font-weight: 600;
      margin-top: 1rem;
      color: var(--primary);
    }

    footer {
      background: #ffffff;
      border-top: 1px solid var(--border-light);
      padding: 2.5rem 0;
      color: var(--text-muted);
      margin-top: 4rem;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 2rem;
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 1.2rem;
      }
      h1 {
        font-size: 2.2rem;
      }
      nav {
        gap: 1rem;
      }
      .download-card {
        flex-direction: column;
        align-items: flex-start;
      }
    }
  </style>