*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Helvetica Neue', Arial, sans-serif;
      background: #f1f4ff;
      color: #1a2a4a;
      line-height: 1.6;
      font-size: 16px;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }

    :root {
      --bg: #f1f4ff;
      --navy: #1a2a4a;
      --navy-mid: #2d4270;
      --crimson: #8b1a1a;
      --silver: #8a9ab0;
      --accent: #3a5bc7;
      --white: #ffffff;
      --card: #e8ecf8;
      --border: #d0d8ef;
      --radius: 12px;
      --radius-lg: 20px;
      --shadow: 0 4px 24px rgba(26,42,74,0.10);
      --shadow-hover: 0 8px 40px rgba(26,42,74,0.18);
      --t: 0.25s ease;
    }

    /* NAV */
    .nav {
      position: sticky; top: 0; z-index: 100;
      background: rgba(241,244,255,0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      padding: 0 24px;
    }
    .nav-inner {
      max-width: 1200px; margin: 0 auto;
      display: flex; align-items: center; justify-content: space-between;
      height: 60px;
    }
    .nav-brand { font-size: 17px; font-weight: 900; letter-spacing: 0.09em; color: var(--navy); text-transform: uppercase; }
    .nav-links { display: flex; gap: 28px; list-style: none; }
    .nav-links a { font-size: 13px; font-weight: 600; letter-spacing: 0.05em; color: var(--navy-mid); text-transform: uppercase; transition: color var(--t); }
    .nav-links a:hover { color: var(--accent); }
    .nav-cta {
      background: var(--navy); color: var(--white);
      padding: 9px 20px; border-radius: 8px;
      font-size: 13px; font-weight: 700; letter-spacing: 0.06em;
      text-transform: uppercase; transition: background var(--t); border: none; cursor: pointer;
    }
    .nav-cta:hover { background: var(--accent); }
    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
    .hamburger span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: all var(--t); }
    .mobile-nav { display: none; position: fixed; inset: 0; top: 60px; background: #f1f4ff; z-index: 99; flex-direction: column; padding: 24px; gap: 16px; border-top: 1px solid var(--border); }
    .mobile-nav.open { display: flex; }
    .mobile-nav a { font-size: 18px; font-weight: 700; color: var(--navy); text-transform: uppercase; letter-spacing: 0.08em; padding: 12px 0; border-bottom: 1px solid var(--border); }

    /* HERO */
    .hero {
      max-width: 1200px; margin: 0 auto;
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 48px; padding: 60px 24px 40px;
      align-items: start;
    }
    .hero-gallery { position: sticky; top: 80px; }
    .hero-main-img {
      border-radius: var(--radius-lg); overflow: hidden;
      background: var(--card); cursor: zoom-in;
      transition: box-shadow var(--t);
    }
    .hero-main-img:hover { box-shadow: var(--shadow-hover); }
    .hero-main-img img { width: 100%; aspect-ratio: 1/1; object-fit: cover; transition: transform 0.4s ease; }
    .hero-main-img:hover img { transform: scale(1.03); }
    .thumb-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; margin-top: 12px; }
    .thumb { border-radius: 8px; overflow: hidden; cursor: pointer; border: 2px solid transparent; transition: border-color var(--t), box-shadow var(--t); background: var(--card); }
    .thumb:hover, .thumb.active { border-color: var(--navy); box-shadow: 0 2px 8px rgba(26,42,74,.15); }
    .thumb img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }

    /* HERO INFO */
    .hero-info { padding-top: 8px; }
    .hero-badge { display: inline-block; background: var(--crimson); color: var(--white); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 12px; border-radius: 4px; margin-bottom: 16px; }
    .hero-info h1 { font-size: clamp(24px, 3.2vw, 36px); font-weight: 900; line-height: 1.15; color: var(--navy); margin-bottom: 12px; }
    .hero-sub { font-size: 15px; color: var(--silver); font-weight: 500; letter-spacing: 0.05em; margin-bottom: 24px; }
    .hero-stars { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
    .stars { color: #e8a020; font-size: 17px; letter-spacing: 2px; }
    .hero-stars span { font-size: 13px; color: var(--silver); }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
    .hero-tag { background: var(--card); color: var(--navy-mid); border: 1px solid var(--border); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; letter-spacing: 0.04em; }
    .price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 24px; }
    .price-main { font-size: 28px; font-weight: 900; color: var(--navy); }
    .price-note { font-size: 13px; color: var(--silver); }

    .spec-mini { background: var(--card); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; border: 1px solid var(--border); }
    .spec-mini-row { display: flex; flex-direction: column; }
    .spec-mini-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--silver); font-weight: 600; }
    .spec-mini-val { font-size: 14px; color: var(--navy); font-weight: 700; margin-top: 2px; }

    .btn-primary { display: block; width: 100%; background: var(--navy); color: var(--white); border: none; border-radius: 10px; font-size: 15px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; padding: 16px; cursor: pointer; transition: background var(--t), transform var(--t); text-align: center; margin-bottom: 12px; }
    .btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
    .btn-secondary { display: block; width: 100%; background: transparent; color: var(--navy); border: 2px solid var(--navy); border-radius: 10px; font-size: 14px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 14px; cursor: pointer; transition: all var(--t); text-align: center; }
    .btn-secondary:hover { background: var(--navy); color: var(--white); }
    .trust-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .trust-pill { font-size: 12px; color: var(--navy-mid); display: flex; align-items: center; gap: 5px; }
    .trust-pill::before { content: '✓'; color: var(--accent); font-weight: 800; }

    /* SECTIONS */
    .section { max-width: 1200px; margin: 0 auto; padding: 64px 24px; }
    .section-sm { max-width: 1200px; margin: 0 auto; padding: 40px 24px; }
    .section-label { font-size: 11px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--silver); margin-bottom: 8px; }
    .section-title { font-size: clamp(22px, 3vw, 32px); font-weight: 900; color: var(--navy); line-height: 1.2; margin-bottom: 12px; }
    .section-sub { font-size: 16px; color: var(--navy-mid); max-width: 600px; }
    .divider { border: none; border-top: 1px solid var(--border); max-width: 1200px; margin: 0 auto; }

    /* FEATURE CARDS */
    .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
    .feat-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 24px; transition: box-shadow var(--t), transform var(--t); }
    .feat-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
    .feat-icon { font-size: 32px; margin-bottom: 16px; }
    .feat-title { font-size: 17px; font-weight: 800; color: var(--navy); margin-bottom: 8px; }
    .feat-desc { font-size: 14px; color: var(--navy-mid); line-height: 1.65; }

    /* FULL IMG */
    .showcase-full { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); margin-top: 40px; }
    .showcase-full img { width: 100%; display: block; }
    .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px; }
    .two-col img { border-radius: var(--radius-lg); box-shadow: var(--shadow); width: 100%; }

    /* GALLERY */
    .gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
    .gallery-item { border-radius: var(--radius); overflow: hidden; background: var(--card); transition: box-shadow var(--t), transform var(--t); cursor: pointer; }
    .gallery-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
    .gallery-item img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
    .gallery-item.wide { grid-column: span 2; }
    .gallery-item.wide img { aspect-ratio: 16/9; }

    /* SPEC */
    .spec-section { background: var(--white); border-radius: var(--radius-lg); padding: 40px; margin-top: 40px; border: 1px solid var(--border); }
    .spec-table { width: 100%; border-collapse: collapse; }
    .spec-table tr { border-bottom: 1px solid var(--border); }
    .spec-table tr:last-child { border-bottom: none; }
    .spec-table td { padding: 14px 16px; font-size: 14px; }
    .spec-table td:first-child { color: var(--silver); font-weight: 600; text-transform: uppercase; font-size: 12px; letter-spacing: 0.06em; width: 42%; }
    .spec-table td:last-child { color: var(--navy); font-weight: 700; }

    /* WHY */
    .why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
    .why-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; transition: box-shadow var(--t), transform var(--t); }
    .why-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
    .why-num { font-size: 36px; font-weight: 900; color: var(--accent); line-height: 1; margin-bottom: 10px; }
    .why-label { font-size: 15px; font-weight: 800; color: var(--navy); margin-bottom: 6px; }
    .why-desc { font-size: 13px; color: var(--navy-mid); line-height: 1.55; }

    /* FAQ */
    .faq-list { margin-top: 40px; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--t); }
    .faq-item:hover { box-shadow: var(--shadow); }
    .faq-q { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; cursor: pointer; font-size: 15px; font-weight: 700; color: var(--navy); gap: 12px; user-select: none; }
    .faq-icon { width: 28px; height: 28px; flex-shrink: 0; background: var(--card); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--navy); transition: transform var(--t), background var(--t); }
    .faq-item.open .faq-icon { transform: rotate(45deg); background: var(--navy); color: var(--white); }
    .faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.25s ease; padding: 0 24px; }
    .faq-item.open .faq-a { max-height: 400px; padding: 0 24px 20px; }
    .faq-a p { font-size: 14px; color: var(--navy-mid); line-height: 1.7; }

    /* CTA BAND */
    .cta-band { background: var(--navy); border-radius: var(--radius-lg); padding: 56px 40px; text-align: center; margin-top: 64px; }
    .cta-band h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 900; color: var(--white); margin-bottom: 12px; }
    .cta-band p { font-size: 16px; color: #a0b0cc; margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
    .cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
    .btn-cta-white { background: var(--white); color: var(--navy); border: none; border-radius: 10px; font-size: 15px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; padding: 16px 32px; cursor: pointer; transition: all var(--t); }
    .btn-cta-white:hover { background: #d8e0f8; transform: translateY(-1px); }
    .btn-cta-outline { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.4); border-radius: 10px; font-size: 15px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 14px 32px; cursor: pointer; transition: all var(--t); }
    .btn-cta-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

    /* FOOTER */
    .footer { background: var(--navy); color: #a0b0cc; padding: 40px 24px; margin-top: 80px; text-align: center; }
    .footer-brand { font-size: 18px; font-weight: 900; color: var(--white); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
    .footer-sub { font-size: 13px; margin-bottom: 16px; }
    .footer-links { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
    .footer-links a { font-size: 13px; color: #7a9ab8; transition: color var(--t); }
    .footer-links a:hover { color: var(--white); }
    .footer-copy { font-size: 12px; color: #5a7a98; }

    /* LIGHTBOX */
    .lightbox { display: none; position: fixed; inset: 0; background: rgba(10,18,40,0.93); z-index: 1000; align-items: center; justify-content: center; padding: 20px; }
    .lightbox.open { display: flex; }
    .lightbox-img { max-width: 90vw; max-height: 90vh; border-radius: var(--radius); object-fit: contain; }
    .lightbox-close { position: absolute; top: 20px; right: 24px; background: none; border: none; color: #fff; font-size: 38px; cursor: pointer; line-height: 1; opacity: 0.75; transition: opacity var(--t); }
    .lightbox-close:hover { opacity: 1; }
    .lb-prev, .lb-next { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.12); border: none; color: #fff; font-size: 28px; padding: 14px 18px; cursor: pointer; border-radius: 8px; transition: background var(--t); }
    .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,0.25); }
    .lb-prev { left: 16px; }
    .lb-next { right: 16px; }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .hero { grid-template-columns: 1fr; gap: 32px; padding: 32px 16px 24px; }
      .hero-gallery { position: static; }
      .features-grid { grid-template-columns: 1fr 1fr; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      .gallery-grid { grid-template-columns: 1fr 1fr; }
      .nav-links, .nav-cta { display: none; }
      .hamburger { display: flex; }
    }
    @media (max-width: 600px) {
      .features-grid { grid-template-columns: 1fr; }
      .why-grid { grid-template-columns: 1fr 1fr; }
      .two-col { grid-template-columns: 1fr; }
      .gallery-grid { grid-template-columns: 1fr 1fr; }
      .gallery-item.wide { grid-column: span 2; }
      .spec-mini { grid-template-columns: 1fr; }
      .thumb-row { grid-template-columns: repeat(4, 1fr); }
      .cta-band { padding: 36px 20px; }
      .spec-section { padding: 24px 16px; }
      .section { padding: 44px 16px; }
    }