/* ===== RESET & BASE ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: 'Helvetica Neue', Arial, sans-serif;
      background: #f1f4ff;
      color: #1a1a2e;
      line-height: 1.65;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }

    /* ===== CSS VARIABLES ===== */
    :root {
      --bg: #f1f4ff;
      --gold: #c9a84c;
      --gold-dark: #9c7c2e;
      --navy: #1a2f5a;
      --teal: #2a7a7a;
      --white: #ffffff;
      --card-bg: #ffffff;
      --border: rgba(201,168,76,0.25);
      --shadow: 0 4px 24px rgba(26,47,90,0.09);
      --radius: 16px;
      --radius-sm: 10px;
      --max-w: 1200px;
    }

    /* ===== HEADER ===== */
    header {
      background: var(--navy);
      color: var(--white);
      padding: 0 24px;
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 2px 12px rgba(0,0,0,0.25);
    }
    .header-inner {
      max-width: var(--max-w);
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 62px;
      gap: 16px;
    }
    .logo {
      font-size: 1.15rem;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--gold);
      white-space: nowrap;
    }
    nav { display: flex; gap: 24px; align-items: center; }
    nav a {
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: rgba(255,255,255,0.82);
      transition: color 0.2s;
    }
    nav a:hover { color: var(--gold); }
    .nav-cta {
      background: var(--gold);
      color: var(--navy) !important;
      padding: 8px 18px;
      border-radius: 6px;
      font-weight: 700 !important;
    }
    .nav-cta:hover { background: #e0bc5a !important; }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      padding: 6px;
    }
    .hamburger span {
      width: 24px; height: 2px;
      background: var(--white);
      border-radius: 2px;
      transition: 0.3s;
    }

    /* ===== HERO SECTION ===== */
    .hero {
      background: linear-gradient(135deg, #0d1b3e 0%, #1a2f5a 50%, #0f2447 100%);
      padding: 64px 24px 56px;
      text-align: center;
    }
    .hero-inner { max-width: var(--max-w); margin: 0 auto; }
    .hero-badge {
      display: inline-block;
      background: rgba(201,168,76,0.18);
      border: 1px solid var(--gold);
      color: var(--gold);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      padding: 5px 14px;
      border-radius: 20px;
      margin-bottom: 20px;
    }
    .hero h1 {
      font-size: clamp(1.8rem, 4vw, 3.2rem);
      font-weight: 800;
      color: var(--white);
      line-height: 1.18;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }
    .hero h1 em {
      font-style: normal;
      color: var(--gold);
    }
    .hero-sub {
      font-size: clamp(0.95rem, 2vw, 1.12rem);
      color: rgba(255,255,255,0.72);
      max-width: 600px;
      margin: 0 auto 32px;
    }
    .hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
    .btn-primary {
      background: var(--gold);
      color: var(--navy);
      font-weight: 800;
      font-size: 0.95rem;
      padding: 14px 30px;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      letter-spacing: 0.04em;
      transition: background 0.2s, transform 0.15s;
    }
    .btn-primary:hover { background: #e0bc5a; transform: translateY(-1px); }
    .btn-outline {
      background: transparent;
      color: var(--white);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 14px 30px;
      border-radius: 8px;
      border: 1.5px solid rgba(255,255,255,0.4);
      cursor: pointer;
      transition: border-color 0.2s;
    }
    .btn-outline:hover { border-color: var(--gold); color: var(--gold); }

    /* ===== SECTION WRAPPER ===== */
    .section { padding: 72px 24px; }
    .section-inner { max-width: var(--max-w); margin: 0 auto; }
    .section-label {
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--gold-dark);
      margin-bottom: 10px;
    }
    .section-title {
      font-size: clamp(1.6rem, 3.5vw, 2.6rem);
      font-weight: 800;
      color: var(--navy);
      line-height: 1.2;
      margin-bottom: 16px;
    }
    .section-sub {
      font-size: 1rem;
      color: #555;
      max-width: 640px;
      margin-bottom: 48px;
    }

    /* ===== PRODUCT GALLERY ===== */
    .gallery-section { background: var(--bg); }
    .gallery-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: start;
    }
    .gallery-main-img {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      aspect-ratio: 1/1;
      background: #e8ecf8;
    }
    .gallery-main-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      cursor: pointer;
      transition: transform 0.4s ease;
    }
    .gallery-main-img:hover img { transform: scale(1.03); }
    .gallery-thumbs {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }
    .thumb {
      border-radius: 10px;
      overflow: hidden;
      aspect-ratio: 1/1;
      background: #e8ecf8;
      cursor: pointer;
      box-shadow: 0 2px 10px rgba(0,0,0,0.08);
      border: 2px solid transparent;
      transition: border-color 0.2s, transform 0.2s;
    }
    .thumb:hover, .thumb.active { border-color: var(--gold); transform: scale(1.04); }
    .thumb img { width: 100%; height: 100%; object-fit: cover; }

    /* ===== PRODUCT INFO (right panel) ===== */
    .product-info { display: flex; flex-direction: column; gap: 22px; }
    .product-title-wrap .product-type {
      font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em;
      text-transform: uppercase; color: var(--gold-dark); margin-bottom: 8px;
    }
    .product-title-wrap h2 {
      font-size: clamp(1.4rem, 3vw, 2rem);
      font-weight: 800; color: var(--navy); line-height: 1.2;
    }
    .product-desc { font-size: 0.97rem; color: #444; line-height: 1.7; }
    .feature-pills { display: flex; flex-wrap: wrap; gap: 8px; }
    .pill {
      display: inline-flex; align-items: center; gap: 6px;
      background: rgba(201,168,76,0.12);
      border: 1px solid var(--border);
      color: var(--navy);
      font-size: 0.8rem; font-weight: 600;
      padding: 6px 14px; border-radius: 20px;
    }
    .pill-icon { font-size: 1rem; }

    /* Specs mini-table */
    .specs-mini table { width: 100%; border-collapse: collapse; }
    .specs-mini td {
      padding: 8px 12px;
      font-size: 0.87rem;
      border-bottom: 1px solid var(--border);
    }
    .specs-mini td:first-child { font-weight: 700; color: var(--navy); width: 44%; }
    .specs-mini td:last-child { color: #444; }
    .specs-mini tr:last-child td { border-bottom: none; }
    .specs-mini { background: var(--card-bg); border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border); }

    .cta-block { display: flex; flex-direction: column; gap: 10px; }
    .cta-block .btn-primary { text-align: center; font-size: 1rem; padding: 15px; }
    .cta-note { font-size: 0.78rem; color: #888; text-align: center; }

    /* ===== INTRO BANNER (series opening, full-width) ===== */
    .intro-banner {
      background: var(--navy);
      padding: 0;
      overflow: hidden;
    }
    .intro-banner img {
      width: 100%;
      max-height: 480px;
      object-fit: cover;
      opacity: 0.9;
    }

    /* ===== FEATURES GRID ===== */
    .features-section { background: var(--white); }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .feature-card {
      background: var(--bg);
      border-radius: var(--radius);
      padding: 28px 24px;
      border: 1px solid var(--border);
      transition: box-shadow 0.2s, transform 0.2s;
    }
    .feature-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
    .feature-icon { font-size: 2rem; margin-bottom: 14px; }
    .feature-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
    .feature-card p { font-size: 0.9rem; color: #555; line-height: 1.65; }

    /* ===== SHOWCASE IMAGERY ===== */
    .showcase-section { background: var(--bg); }
    .showcase-grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .showcase-item {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      background: #e8ecf8;
    }
    .showcase-item img { width: 100%; height: 100%; object-fit: cover; }
    .showcase-item.wide { grid-column: span 2; aspect-ratio: 16/7; }
    .showcase-item.square { aspect-ratio: 1/1; }

    /* ===== DETAIL SECTION ===== */
    .detail-section { background: var(--white); }
    .detail-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .detail-layout.reverse { direction: rtl; }
    .detail-layout.reverse > * { direction: ltr; }
    .detail-img {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .detail-img img { width: 100%; object-fit: cover; }
    .detail-text h3 { font-size: 1.5rem; font-weight: 800; color: var(--navy); margin-bottom: 14px; }
    .detail-text p { font-size: 0.97rem; color: #555; line-height: 1.75; margin-bottom: 14px; }
    .detail-list { list-style: none; }
    .detail-list li {
      font-size: 0.9rem;
      color: #444;
      padding: 6px 0;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: baseline;
      gap: 8px;
    }
    .detail-list li::before { content: "✦"; color: var(--gold); font-size: 0.7rem; flex-shrink: 0; }
    .detail-list li:last-child { border-bottom: none; }

    /* ===== COLOR VARIANTS ===== */
    .variants-section { background: var(--bg); }
    .variants-img-wrap {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      margin-bottom: 32px;
    }
    .variants-img-wrap img { width: 100%; object-fit: cover; max-height: 440px; }
    .variants-labels {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .variant-tag {
      background: var(--card-bg);
      border: 1.5px solid var(--border);
      border-radius: 8px;
      padding: 6px 16px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--navy);
      display: flex;
      align-items: center;
      gap: 7px;
    }
    .swatch {
      width: 14px; height: 14px;
      border-radius: 50%;
      border: 1.5px solid rgba(0,0,0,0.12);
      display: inline-block;
      flex-shrink: 0;
    }

    /* ===== SPECS TABLE ===== */
    .specs-section { background: var(--white); }
    .specs-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }
    .specs-table { width: 100%; border-collapse: collapse; }
    .specs-table th {
      background: var(--navy);
      color: var(--gold);
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      padding: 12px 16px;
      text-align: left;
    }
    .specs-table td {
      padding: 11px 16px;
      font-size: 0.9rem;
      border-bottom: 1px solid var(--border);
      vertical-align: top;
    }
    .specs-table td:first-child { font-weight: 700; color: var(--navy); width: 42%; }
    .specs-table td:last-child { color: #444; }
    .specs-table tr:last-child td { border-bottom: none; }
    .specs-table-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); }
    .specs-detail-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
    .specs-detail-img img { width: 100%; object-fit: cover; }

    /* ===== PROCESS / HOW IT WORKS ===== */
    .process-section { background: var(--bg); }
    .process-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      margin-bottom: 40px;
    }
    .process-step {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 28px 20px 24px;
      text-align: center;
      border: 1px solid var(--border);
      position: relative;
    }
    .step-num {
      width: 40px; height: 40px;
      background: var(--navy);
      color: var(--gold);
      border-radius: 50%;
      font-weight: 800;
      font-size: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
    }
    .process-step h4 { font-size: 0.95rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
    .process-step p { font-size: 0.84rem; color: #666; line-height: 1.55; }

    /* ===== SERIES STRIP (horizontal scroll on mobile) ===== */
    .series-section { background: var(--white); }
    .series-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .series-card {
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow);
      background: #e8ecf8;
      aspect-ratio: 4/5;
    }
    .series-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
    .series-card:hover img { transform: scale(1.05); }

    /* ===== GIFT CLOSING ===== */
    .gift-section { background: var(--navy); padding: 72px 24px; }
    .gift-inner {
      max-width: var(--max-w);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .gift-text .section-label { color: var(--gold); }
    .gift-text h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--white); margin-bottom: 14px; }
    .gift-text p { color: rgba(255,255,255,0.72); font-size: 0.97rem; line-height: 1.75; margin-bottom: 24px; }
    .gift-text .btn-primary { display: inline-block; }
    .gift-img { border-radius: var(--radius); overflow: hidden; box-shadow: 0 8px 40px rgba(0,0,0,0.35); }
    .gift-img img { width: 100%; object-fit: cover; }

    /* ===== FAQ ===== */
    .faq-section { background: var(--bg); }
    .faq-list { display: flex; flex-direction: column; gap: 12px; }
    .faq-item {
      background: var(--card-bg);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      overflow: hidden;
    }
    .faq-q {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 20px 24px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--navy);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
    }
    .faq-q:hover { color: var(--gold-dark); }
    .faq-icon {
      width: 24px; height: 24px;
      background: var(--bg);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 1.1rem;
      color: var(--gold-dark);
      flex-shrink: 0;
      transition: transform 0.3s;
    }
    .faq-item.open .faq-icon { transform: rotate(45deg); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      padding: 0 24px;
    }
    .faq-a p { font-size: 0.93rem; color: #555; line-height: 1.75; }
    .faq-item.open .faq-a { max-height: 500px; padding: 0 24px 20px; }

    /* ===== CTA BANNER ===== */
    .cta-section {
      background: linear-gradient(135deg, #c9a84c 0%, #e0bc5a 50%, #c9a84c 100%);
      padding: 64px 24px;
      text-align: center;
    }
    .cta-section h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: var(--navy); margin-bottom: 12px; }
    .cta-section p { font-size: 1rem; color: rgba(26,47,90,0.75); margin-bottom: 28px; }
    .cta-section .btn-navy {
      background: var(--navy);
      color: var(--white);
      font-weight: 800;
      font-size: 1rem;
      padding: 15px 36px;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      transition: opacity 0.2s;
    }
    .cta-section .btn-navy:hover { opacity: 0.88; }

    /* ===== FOOTER ===== */
    footer {
      background: #0d1b3e;
      color: rgba(255,255,255,0.55);
      padding: 40px 24px;
      text-align: center;
    }
    .footer-inner { max-width: var(--max-w); margin: 0 auto; }
    .footer-logo { font-size: 1.1rem; font-weight: 800; letter-spacing: 0.12em; color: var(--gold); margin-bottom: 12px; }
    footer p { font-size: 0.82rem; line-height: 1.7; }

    /* ===== LIGHTBOX ===== */
    .lightbox {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.88);
      z-index: 999;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .lightbox.open { display: flex; }
    .lightbox img { max-height: 90vh; max-width: 90vw; border-radius: 12px; box-shadow: 0 0 60px rgba(0,0,0,0.5); }
    .lightbox-close {
      position: absolute;
      top: 20px; right: 24px;
      color: var(--white);
      font-size: 2rem;
      cursor: pointer;
      font-weight: 300;
      line-height: 1;
      opacity: 0.8;
    }
    .lightbox-close:hover { opacity: 1; }

    /* ===== MOBILE NAV DRAWER ===== */
    .mobile-nav {
      display: none;
      position: fixed;
      inset: 0;
      background: var(--navy);
      z-index: 200;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 32px;
    }
    .mobile-nav.open { display: flex; }
    .mobile-nav a {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--white);
      letter-spacing: 0.06em;
    }
    .mobile-nav a:hover { color: var(--gold); }
    .mobile-close {
      position: absolute;
      top: 20px; right: 24px;
      color: var(--white);
      font-size: 2rem;
      cursor: pointer;
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 900px) {
      .gallery-layout { grid-template-columns: 1fr; }
      .detail-layout, .detail-layout.reverse { grid-template-columns: 1fr; direction: ltr; }
      .specs-split { grid-template-columns: 1fr; }
      .gift-inner { grid-template-columns: 1fr; }
      .showcase-grid-2 { grid-template-columns: 1fr; }
      .showcase-item.wide { grid-column: span 1; aspect-ratio: 4/3; }
      .series-strip { grid-template-columns: repeat(2, 1fr); }
      nav { display: none; }
      .hamburger { display: flex; }
    }

    @media (max-width: 600px) {
      .section { padding: 52px 18px; }
      .gallery-thumbs { grid-template-columns: repeat(4, 1fr); }
      .series-strip { grid-template-columns: repeat(2, 1fr); }
      .hero { padding: 48px 18px 40px; }
      .hero-btns { flex-direction: column; align-items: center; }
      .hero-btns .btn-primary, .hero-btns .btn-outline { width: 100%; max-width: 280px; }
      .process-steps { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 400px) {
      .gallery-thumbs { grid-template-columns: repeat(3, 1fr); }
    }