:root {
    --ice: #e8f4f8;
    --frost: #d0eaf4;
    --aqua: #9dd4e8;
    --deep-aqua: #5ab5d4;
    --mist: #f4f8fb;
    --pearl: #fafcfe;
    --smoke: #8aa8b8;
    --ink: #2a3a44;
    --blush: #f0e6ec;
    --rose-mist: #d4a8be;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Noto Sans JP', sans-serif;
    background: var(--pearl);
    color: var(--ink);
    overflow-x: hidden;
  }

  /* ── Water drop animation ── */
  @keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-12px) rotate(1deg); }
    66% { transform: translateY(-6px) rotate(-1deg); }
  }
  @keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
  }
  @keyframes dropIn {
    0% { opacity: 0; transform: translateY(-30px); }
    100% { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
  }
  @keyframes ripple {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(2.5); opacity: 0; }
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
  }
  @keyframes waterWave {
    0% { transform: translateX(0) scaleY(1); }
    50% { transform: translateX(-2%) scaleY(0.97); }
    100% { transform: translateX(0) scaleY(1); }
  }

  /* ── HEADER ── */
  .header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(157,212,232,0.2);
  }
  .logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.6rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--ink);
    text-decoration: none;
  }
  .logo span {
    color: var(--deep-aqua);
    font-style: italic;
  }
  .header-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .header-btn {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--aqua);
    color: var(--smoke);
    background: transparent;
  }
  .header-btn:hover {
    background: var(--deep-aqua);
    color: white;
    border-color: var(--deep-aqua);
  }

  /* ── HERO ── */
  .hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(160deg, #f8fcfe 0%, #e4f3f9 40%, #f0e8f0 100%);
    padding-top: 80px;
  }

  /* Floating water drops BG */
  .water-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
  }
  .drop-orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, rgba(255,255,255,0.9), rgba(157,212,232,0.3) 60%, transparent);
    animation: float linear infinite;
    filter: blur(0.5px);
  }
  .drop-orb:nth-child(1) { width: 180px; height: 180px; top: 8%; left: 5%; opacity: 0.5; animation-duration: 8s; }
  .drop-orb:nth-child(2) { width: 100px; height: 100px; top: 20%; right: 8%; opacity: 0.4; animation-duration: 11s; animation-delay: -3s; }
  .drop-orb:nth-child(3) { width: 240px; height: 240px; bottom: 15%; left: -5%; opacity: 0.35; animation-duration: 14s; animation-delay: -7s; }
  .drop-orb:nth-child(4) { width: 60px; height: 60px; top: 60%; right: 15%; opacity: 0.5; animation-duration: 7s; animation-delay: -2s; }
  .drop-orb:nth-child(5) { width: 120px; height: 120px; bottom: 30%; right: 3%; opacity: 0.3; animation-duration: 10s; animation-delay: -5s; }

  /* Wave SVG */
  .wave-divider {
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    animation: waterWave 6s ease-in-out infinite;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    animation: dropIn 1s ease both;
  }

  .hero-eyebrow {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.85rem;
    letter-spacing: 0.35em;
    color: var(--deep-aqua);
    margin-bottom: 16px;
    font-style: italic;
    animation: fadeUp 1s ease 0.3s both;
  }

  .hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.8rem, 8vw, 5.5rem);
    font-weight: 300;
    line-height: 1.1;
    color: var(--ink);
    letter-spacing: -0.01em;
    margin-bottom: 8px;
    animation: fadeUp 1s ease 0.5s both;
  }
  .hero-title em {
    font-style: italic;
    color: var(--deep-aqua);
    display: block;
  }

  .hero-subtitle {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(0.85rem, 2.5vw, 1rem);
    font-weight: 300;
    color: var(--smoke);
    letter-spacing: 0.15em;
    margin-bottom: 48px;
    animation: fadeUp 1s ease 0.7s both;
  }

  /* Tear drop icon */
  .tear-icon {
    width: 40px;
    height: 56px;
    margin: 0 auto 32px;
    position: relative;
    animation: float 5s ease-in-out infinite, fadeUp 1s ease 0.2s both;
  }
  .tear-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 8px 20px rgba(90,181,212,0.4));
  }

  /* CTA Buttons */
  .cta-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    max-width: 560px;
    animation: fadeUp 1s ease 0.9s both;
  }

  .cta-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 22px;
    border-radius: 32px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-decoration: none;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
  }
  .cta-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.2);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
  }
  .cta-btn:hover::before { transform: translateX(0); }
  .cta-btn:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 12px 32px rgba(0,0,0,0.12); }

  .btn-qoo10 { background: linear-gradient(135deg, #ff6b9d, #ff4777); color: white; }
  .btn-rakuten { background: linear-gradient(135deg, #bf0000, #8b0000); color: white; }
  .btn-amazon { background: linear-gradient(135deg, #ff9900, #e47911); color: white; }
  .btn-aupay { background: linear-gradient(135deg, #00b4d8, #0077b6); color: white; }
  .btn-yahoo { background: linear-gradient(135deg, #ff0033, #cc0000); color: white; }

  .btn-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }

  /* ── SECTION COMMON ── */
  .section {
    padding: 80px 24px;
    max-width: 900px;
    margin: 0 auto;
  }
  .section-label {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.75rem;
    letter-spacing: 0.4em;
    color: var(--deep-aqua);
    text-transform: uppercase;
    margin-bottom: 12px;
    font-style: italic;
  }
  .section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 300;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 40px;
  }

  /* ── LP GALLERY SECTION ── */
  .lp-section {
    background: linear-gradient(180deg, var(--pearl) 0%, var(--mist) 50%, var(--ice) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
  }
  .lp-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--aqua), var(--rose-mist), var(--aqua), transparent);
    animation: shimmer 4s linear infinite;
    background-size: 200% auto;
  }
  .lp-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
  }
  .lp-header {
    text-align: center;
    margin-bottom: 56px;
  }

  /* Vertical stacked LP images */
  .lp-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
  }

  .lp-item {
    position: relative;
    width: 100%;
    overflow: hidden;
    line-height: 0;
  }
  .lp-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
  }
  .lp-item:hover img {
    transform: scale(1.01);
  }

  /* Water drop separator between images */
  .lp-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 0;
    background: var(--mist);
    position: relative;
  }
  .lp-separator::before,
  .lp-separator::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--aqua));
    margin: 0 16px;
  }
  .lp-separator::after {
    background: linear-gradient(90deg, var(--aqua), transparent);
  }
  .sep-drop {
    width: 8px;
    height: 11px;
    fill: var(--aqua);
    opacity: 0.6;
  }

  /* Number badge on each LP */
  .lp-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.85rem;
    color: var(--smoke);
    border: 1px solid rgba(157,212,232,0.5);
    z-index: 2;
  }

  /* ── FEATURES ── */
  .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
  }
  .feature-card {
    background: white;
    border-radius: 20px;
    padding: 32px 24px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(157,212,232,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(90,181,212,0.15);
  }
  .feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--aqua), var(--rose-mist));
  }
  .feature-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3rem;
    color: rgba(157,212,232,0.4);
    line-height: 1;
    margin-bottom: 12px;
    font-style: italic;
  }
  .feature-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 10px;
    letter-spacing: 0.05em;
  }
  .feature-text {
    font-size: 0.78rem;
    color: var(--smoke);
    line-height: 1.7;
    font-weight: 300;
  }

  /* ── RECOMMEND ── */
  .recommend-section {
    background: linear-gradient(135deg, #f0f8fc 0%, #faf0f5 100%);
    padding: 80px 24px;
  }
  .recommend-inner {
    max-width: 900px;
    margin: 0 auto;
  }
  .recommend-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .recommend-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    background: rgba(255,255,255,0.7);
    border-radius: 16px;
    border-left: 3px solid var(--aqua);
    transition: all 0.3s ease;
  }
  .recommend-item:hover {
    background: white;
    border-left-color: var(--rose-mist);
    transform: translateX(4px);
  }
  .rec-dot {
    width: 8px;
    height: 11px;
    flex-shrink: 0;
    margin-top: 3px;
  }
  .recommend-item strong {
    font-weight: 500;
    color: var(--deep-aqua);
    display: block;
    margin-bottom: 4px;
    font-size: 0.88rem;
    letter-spacing: 0.03em;
  }
  .recommend-item p {
    font-size: 0.8rem;
    color: var(--smoke);
    line-height: 1.7;
    font-weight: 300;
  }

  /* ── REVIEWS ── */
  .reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
  }
  .review-card {
    background: white;
    border-radius: 20px;
    padding: 28px 24px;
    position: relative;
    border: 1px solid rgba(157,212,232,0.15);
    transition: box-shadow 0.3s ease;
  }
  .review-card:hover {
    box-shadow: 0 12px 36px rgba(157,212,232,0.2);
  }
  .review-quote {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3.5rem;
    line-height: 0.6;
    color: var(--aqua);
    opacity: 0.4;
    margin-bottom: 12px;
  }
  .review-text {
    font-size: 0.82rem;
    line-height: 1.8;
    color: var(--ink);
    font-weight: 300;
    margin-bottom: 16px;
  }
  .review-color {
    display: inline-block;
    padding: 3px 10px;
    background: var(--ice);
    border-radius: 10px;
    font-size: 0.7rem;
    color: var(--deep-aqua);
    letter-spacing: 0.05em;
  }
  .stars {
    display: flex;
    gap: 2px;
    margin-bottom: 12px;
  }
  .star {
    color: #ffc107;
    font-size: 0.85rem;
  }

  /* ── SPECS ── */
  .specs-section {
    padding: 80px 24px;
    background: var(--pearl);
  }
  .specs-inner {
    max-width: 700px;
    margin: 0 auto;
  }
  .specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 32px;
  }
  .specs-table tr {
    border-bottom: 1px solid rgba(157,212,232,0.2);
    transition: background 0.2s;
  }
  .specs-table tr:hover { background: rgba(157,212,232,0.05); }
  .specs-table td {
    padding: 14px 16px;
    font-size: 0.82rem;
    font-weight: 300;
    line-height: 1.6;
  }
  .specs-table td:first-child {
    width: 40%;
    color: var(--smoke);
    letter-spacing: 0.05em;
    font-weight: 400;
  }
  .specs-table td:last-child { color: var(--ink); }

  /* ── CAUTION ── */
  .caution-section {
    padding: 40px 24px;
    max-width: 700px;
    margin: 0 auto;
  }
  .caution-box {
    background: #fff9fa;
    border: 1px solid rgba(212,168,190,0.3);
    border-radius: 16px;
    padding: 28px;
  }
  .caution-title {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--rose-mist);
    letter-spacing: 0.15em;
    margin-bottom: 14px;
  }
  .caution-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .caution-list li {
    font-size: 0.75rem;
    color: var(--smoke);
    font-weight: 300;
    line-height: 1.6;
    padding-left: 16px;
    position: relative;
  }
  .caution-list li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--rose-mist);
    font-size: 1.2rem;
    line-height: 1;
    top: 2px;
  }

  /* ── BOTTOM CTA ── */
  .bottom-cta {
    background: linear-gradient(135deg, #e4f3f9 0%, #f4e8f0 100%);
    padding: 80px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .bottom-cta::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--aqua), var(--rose-mist), var(--aqua), transparent);
    animation: shimmer 4s linear infinite;
    background-size: 200% auto;
  }
  .bottom-cta-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 300;
    color: var(--ink);
    margin-bottom: 8px;
    font-style: italic;
  }
  .bottom-cta-sub {
    font-size: 0.82rem;
    color: var(--smoke);
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 40px;
  }

  /* ── INSTAGRAM ── */
  .instagram-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    padding: 10px 22px;
    border-radius: 24px;
    background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: white;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-decoration: none;
    font-weight: 400;
    transition: all 0.3s ease;
  }
  .instagram-link:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(188,24,136,0.3); }

  /* ── FOOTER ── */
  footer {
    background: var(--ink);
    color: rgba(255,255,255,0.5);
    text-align: center;
    padding: 32px 24px;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    font-weight: 300;
  }

  /* ── REVEAL on scroll ── */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }

  /* ── MOBILE ── */
  @media (max-width: 640px) {
    .header { padding: 12px 16px; }
    .header-links { display: none; }
    .cta-grid { flex-direction: column; align-items: center; }
    .cta-btn { width: 220px; justify-content: center; }
    .features-grid { grid-template-columns: 1fr; }
    .reviews-grid { grid-template-columns: 1fr; }
  }