/* ── Reset & Base ── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: #f1f4ff;
      color: #2d2d2d;
      font-family: 'Georgia', 'Times New Roman', serif;
      line-height: 1.7;
      overflow-x: hidden;
    }

    /* ── CSS Variables ── */
    :root {
      --bg: #f1f4ff;
      --accent: #6b7fad;
      --accent-light: #dce4f7;
      --accent-dark: #3d4f80;
      --text: #2d2d2d;
      --muted: #7a7a8a;
      --white: #ffffff;
      --radius: 14px;
      --shadow: 0 4px 28px rgba(107,127,173,0.10);
      --shadow-hover: 0 10px 40px rgba(107,127,173,0.18);
      --max-w: 1200px;
    }

    /* ── Typography ── */
    h1, h2, h3, h4 {
      font-family: 'Georgia', serif;
      font-weight: normal;
      letter-spacing: 0.02em;
    }
    p { color: var(--muted); font-size: 1rem; }

    /* ── Layout Helpers ── */
    .container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
    .section { padding: 80px 0; }
    .section-sm { padding: 48px 0; }

    /* ══════════════════════════════════
       HERO BANNER
    ══════════════════════════════════ */
    .hero {
      background: linear-gradient(160deg, #e8edff 0%, #f1f4ff 55%, #eef1fb 100%);
      padding: 72px 24px 60px;
      text-align: center;
    }
    .hero-tag {
      display: inline-block;
      background: var(--accent-light);
      color: var(--accent-dark);
      font-size: 0.75rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      padding: 6px 18px;
      border-radius: 999px;
      margin-bottom: 22px;
    }
    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      color: var(--accent-dark);
      margin-bottom: 18px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero p {
      font-size: 1.1rem;
      max-width: 580px;
      margin: 0 auto 36px;
      color: var(--muted);
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }
    .badge {
      background: var(--white);
      border: 1.5px solid var(--accent-light);
      border-radius: 999px;
      padding: 8px 20px;
      font-size: 0.85rem;
      color: var(--accent-dark);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .badge svg { width: 15px; height: 15px; flex-shrink: 0; }

    /* ══════════════════════════════════
       MAIN GALLERY — 7 PRODUCT SHOTS (1:1)
    ══════════════════════════════════ */
    .gallery-hero {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .gallery-hero .img-main {
      grid-column: 1 / -1;
      border-radius: var(--radius);
      overflow: hidden;
    }
    .gallery-hero .img-main img { width: 100%; height: auto; display: block; }
    .gallery-hero .img-thumb {
      border-radius: var(--radius);
      overflow: hidden;
    }
    .gallery-hero .img-thumb img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }

    /* ══════════════════════════════════
       SECTION TITLE
    ══════════════════════════════════ */
    .section-title {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-title h2 {
      font-size: clamp(1.5rem, 3.5vw, 2.2rem);
      color: var(--accent-dark);
      margin-bottom: 10px;
    }
    .section-title p { max-width: 520px; margin: 0 auto; }
    .divider {
      width: 48px; height: 3px;
      background: linear-gradient(90deg, var(--accent), var(--accent-light));
      border-radius: 999px;
      margin: 14px auto 0;
    }

    /* ══════════════════════════════════
       SERIES IMAGES — PC (16:9) Grid
    ══════════════════════════════════ */
    .series-pc {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .series-pc .img-card {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: box-shadow 0.3s, transform 0.3s;
      background: var(--white);
    }
    .series-pc .img-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .series-pc .img-card img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
      display: block;
    }
    .img-label {
      font-size: 0.78rem;
      color: var(--muted);
      text-align: center;
      padding: 10px 12px 14px;
      letter-spacing: 0.05em;
    }

    /* ══════════════════════════════════
       SERIES IMAGES — MOBILE (1:1) Grid
    ══════════════════════════════════ */
    .series-mobile {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .series-mobile .img-card {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: box-shadow 0.3s, transform 0.3s;
      background: var(--white);
    }
    .series-mobile .img-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .series-mobile .img-card img {
      width: 100%;
      aspect-ratio: 1/1;
      object-fit: cover;
      display: block;
    }

    /* ══════════════════════════════════
       FEATURES STRIP
    ══════════════════════════════════ */
    .features {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .feature-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow);
      transition: box-shadow 0.3s, transform 0.3s;
    }
    .feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
    .feature-icon {
      width: 52px; height: 52px;
      background: var(--accent-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
    }
    .feature-icon svg { width: 24px; height: 24px; stroke: var(--accent-dark); fill: none; stroke-width: 1.8; }
    .feature-card h4 {
      font-size: 0.95rem;
      color: var(--accent-dark);
      margin-bottom: 8px;
    }
    .feature-card p { font-size: 0.85rem; line-height: 1.6; }

    /* ══════════════════════════════════
       SPECS TABLE
    ══════════════════════════════════ */
    .specs-table {
      width: 100%;
      border-collapse: collapse;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      background: var(--white);
    }
    .specs-table thead tr { background: var(--accent); }
    .specs-table thead th {
      color: var(--white);
      font-weight: normal;
      font-size: 0.88rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      padding: 16px 24px;
      text-align: left;
    }
    .specs-table tbody tr { border-bottom: 1px solid var(--accent-light); }
    .specs-table tbody tr:last-child { border-bottom: none; }
    .specs-table tbody tr:nth-child(even) { background: #f7f9ff; }
    .specs-table tbody td {
      padding: 14px 24px;
      font-size: 0.9rem;
    }
    .specs-table .spec-key { color: var(--accent-dark); font-weight: bold; }
    .specs-table .spec-val { color: var(--muted); }

    /* ══════════════════════════════════
       HOW TO USE — STEPS
    ══════════════════════════════════ */
    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      counter-reset: step;
    }
    .step-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 32px 20px 28px;
      text-align: center;
      box-shadow: var(--shadow);
      position: relative;
    }
    .step-num {
      width: 42px; height: 42px;
      background: linear-gradient(135deg, var(--accent), var(--accent-dark));
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      margin: 0 auto 16px;
      font-family: Georgia, serif;
    }
    .step-card h4 {
      font-size: 0.95rem;
      color: var(--accent-dark);
      margin-bottom: 8px;
    }
    .step-card p { font-size: 0.84rem; }

    /* ══════════════════════════════════
       USE OCCASIONS
    ══════════════════════════════════ */
    .occasions {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .occasion-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow);
    }
    .occasion-emoji { font-size: 2rem; margin-bottom: 12px; }
    .occasion-card h4 { font-size: 0.95rem; color: var(--accent-dark); margin-bottom: 6px; }
    .occasion-card p { font-size: 0.83rem; }

    /* ══════════════════════════════════
       FAQ
    ══════════════════════════════════ */
    .faq-list { max-width: 860px; margin: 0 auto; }
    .faq-item {
      background: var(--white);
      border-radius: var(--radius);
      margin-bottom: 14px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .faq-q {
      width: 100%;
      background: none;
      border: none;
      cursor: pointer;
      padding: 22px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
    }
    .faq-q span {
      font-size: 0.97rem;
      color: var(--accent-dark);
      font-family: Georgia, serif;
      flex: 1;
    }
    .faq-icon {
      width: 24px; height: 24px;
      border-radius: 50%;
      background: var(--accent-light);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      transition: transform 0.3s, background 0.3s;
    }
    .faq-icon svg { width: 12px; height: 12px; stroke: var(--accent-dark); stroke-width: 2.5; fill: none; transition: 0.3s; }
    .faq-item.open .faq-icon { transform: rotate(45deg); background: var(--accent); }
    .faq-item.open .faq-icon svg { stroke: var(--white); }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s;
      padding: 0 28px;
    }
    .faq-a p { font-size: 0.9rem; line-height: 1.75; padding-bottom: 22px; }
    .faq-item.open .faq-a { max-height: 300px; }

    /* ══════════════════════════════════
       CLOSING STRIP
    ══════════════════════════════════ */
    .closing {
      background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
      padding: 72px 24px;
      text-align: center;
    }
    .closing h2 {
      font-size: clamp(1.6rem, 3.5vw, 2.4rem);
      color: var(--white);
      margin-bottom: 16px;
    }
    .closing p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto; font-size: 1rem; }

    /* ══════════════════════════════════
       RESPONSIVE
    ══════════════════════════════════ */
    @media (max-width: 1024px) {
      .features { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .series-mobile { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .section { padding: 56px 0; }
      .series-pc { grid-template-columns: 1fr; }
      .occasions { grid-template-columns: 1fr 1fr; }
      .gallery-hero { grid-template-columns: 1fr; }
      .gallery-hero .img-main { grid-column: 1; }
    }

    @media (max-width: 540px) {
      .features { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr 1fr; }
      .occasions { grid-template-columns: 1fr; }
      .series-mobile { grid-template-columns: repeat(2, 1fr); }
      .hero h1 { font-size: 1.7rem; }
      .container { padding: 0 16px; }
    }