:root {
      --bg-color: #f1f4ff;
      --card-bg: #ffffff;
      --text-main: #2b2e4a;
      --text-muted: #6c7293;
      --accent: #5e72e4;
      --accent-soft: #e8ecfd;
      --border-color: #e2e7fa;
      --shadow-sm: 0 4px 12px rgba(94, 114, 228, 0.06);
      --shadow-md: 0 10px 24px rgba(94, 114, 228, 0.1);
      --radius-lg: 20px;
      --radius-md: 14px;
    }

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

    body {
      background-color: var(--bg-color);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 40px 20px 80px;
    }

    /* Header Section */
    .header {
      text-align: center;
      margin-bottom: 50px;
    }

    .badge {
      display: inline-block;
      padding: 6px 16px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      border-radius: 50px;
      margin-bottom: 16px;
    }

    .header h1 {
      font-size: 2.5rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .header p {
      font-size: 1.1rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* Highlight Feature Badges */
    .feature-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-top: 24px;
    }

    .feature-tag {
      background: var(--card-bg);
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    /* Section Headings */
    .section-title {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 24px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .section-title::before {
      content: "";
      width: 4px;
      height: 24px;
      background: var(--accent);
      border-radius: 4px;
      display: inline-block;
    }

    /* Gallery Grid: 3-column on desktop, responsive down to 1-column on mobile */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 60px;
    }

    .gallery-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
    }

    .image-wrapper {
      position: relative;
      width: 100%;
      padding-top: 100%; /* 1:1 Aspect Ratio */
      background-color: var(--bg-color);
      overflow: hidden;
    }

    .image-wrapper img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .card-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .card-index {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 4px;
    }

    .card-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .card-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Specification Section */
    .specs-section {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 60px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    .specs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .spec-item {
      padding: 16px;
      background: var(--bg-color);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .spec-label {
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .spec-value {
      font-size: 1rem;
      color: var(--text-main);
      font-weight: 700;
    }

    /* FAQ Section */
    .faq-section {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 24px;
    }

    .faq-item {
      padding: 20px;
      background: var(--bg-color);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .faq-question {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .faq-question::before {
      content: "Q.";
      color: var(--accent);
      font-weight: 800;
    }

    .faq-answer {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      padding-left: 24px;
    }

    /* Footer Note (Pure Showcase, No Links/Buttons) */
    .footer-note {
      text-align: center;
      margin-top: 50px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Responsive Breakpoints */
    @media (max-width: 992px) {
      .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .specs-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 600px) {
      .container {
        padding: 24px 14px 60px;
      }
      .header h1 {
        font-size: 1.85rem;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
        gap: 18px;
      }
      .specs-grid {
        grid-template-columns: 1fr;
      }
      .specs-section, .faq-section {
        padding: 24px 18px;
      }
    }