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

  :root {
    --red:    #9F2A2A;
    --cream:  #F5F3EF;
    --ink:    #1A1A1A;
    --stone:  #D6D1C4;
    --mist:   #6B667A;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--cream);
    color: var(--ink);
    font-family: 'DM Sans', sans-serif;
    font-weight: 300;
    line-height: 1.75;
    min-height: 100vh;
  }

  /* ── Layout ── */
  .page {
    max-width: 720px;
    margin: 0 auto;
    padding: 4rem 1.25rem 6rem;
  }

  @media (min-width: 600px) {
    .page {
      padding: 6rem 2rem 8rem;
    }
  }

  /* ── Header ── */
  .site-header {
    text-align: center;
    margin-bottom: 3.5rem;
    opacity: 0;
    animation: fadeUp 0.9s ease 0.1s forwards;
  }

  .site-header .kana {
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--mist);
    display: block;
    margin-bottom: 0.75rem;
  }

  .site-header h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.8rem, 10vw, 4rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--ink);
    line-height: 1.1;
  }

  .site-header h1 em {
    font-style: italic;
    color: var(--red);
  }

  /* ── Responsive Image ── */
  .site-header img {
    width: clamp(180px, 42vw, 340px);
    height: auto;
    display: block;
    margin: 1.2rem auto 0;
    object-fit: contain;
  }

  @media (max-width: 480px) {
    .site-header img {
      width: 72vw;
    }
  }

  /* ── Blocks ── */
  .block {
    opacity: 0;
    transform: translateX(-64px);
    transition:
      opacity 0.7s ease,
      transform 0.7s ease;
    margin-bottom: 1.75rem;
  }

  .block.from-right {
    transform: translateX(64px);
  }

  .block.visible {
    opacity: 1;
    transform: translateX(0);
  }

  .block-inner {
    background: var(--cream);
    border: 0.5px solid var(--stone);
    border-radius: 10px;
    padding: 1.4rem 1.25rem;
    position: relative;
    overflow: hidden;
  }

  @media (min-width: 600px) {
    .block-inner {
      padding: 1.75rem 2rem;
    }
  }

  /* ── Left Accent Line ── */
  .block-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--red);
    opacity: 0;
    transition: opacity 0.35s ease;
  }

  /* PC hover */
  .block-inner:hover::before {
    opacity: 1;
  }

  /* Mobile tap */
  .block-inner:active::before,
  .block-inner:focus-within::before {
    opacity: 1;
  }

  /* Scroll active */
  .block-inner.active::before {
    opacity: 1;
  }

  .block-label {
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mist);
    margin-bottom: 0.5rem;
    display: block;
  }

  .block-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.15rem, 4vw, 1.4rem);
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.65rem;
    line-height: 1.3;
  }

  .block-body {
    font-size: clamp(13.5px, 3.5vw, 14.5px);
    font-weight: 300;
    color: #3d3845;
    line-height: 1.85;
  }

  /* ── List ── */
  .block-list {
    list-style: none;
    margin-top: 0.75rem;
  }

  .block-list li {
    font-size: clamp(13.5px, 3.5vw, 14.5px);
    font-weight: 300;
    color: #3d3845;
    padding: 0.2rem 0;
    display: flex;
    gap: 10px;
    align-items: baseline;
  }

  .block-list li::before {
    content: '—';
    color: var(--red);
    flex-shrink: 0;
  }

  /* ── Tags ── */
  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 0.85rem;
  }

  .tag {
    font-size: 12px;
    font-weight: 400;
    padding: 5px 14px;
    border-radius: 999px;
    background: #ffffff;
    color: var(--mist);
    border: 0.5px solid var(--stone);
  }

  /* ── Closing ── */
  .closing-inner {
    background: var(--cream);
    border: 0.5px solid var(--stone);
    border-radius: 10px;
    padding: 2rem 1.25rem;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  @media (min-width: 600px) {
    .closing-inner {
      padding: 2.5rem 2rem;
    }
  }

  .closing-inner .accent-bar {
    width: 28px;
    height: 2px;
    background: var(--red);
    border-radius: 2px;
    margin: 0 auto 1.25rem;
  }

  .closing-inner .big {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.6rem, 5vw, 1.9rem);
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 0.75rem;
    line-height: 1.2;
  }

  .closing-inner .sub {
    font-size: clamp(13.5px, 3.5vw, 14.5px);
    font-weight: 300;
    color:  #3d3845;
    line-height: 1.9;
  }

  .closing-inner .deco {
    margin-top: 1.5rem;
    font-size: 14px;
    letter-spacing: 0.22em;
    color: var(--stone);
    text-transform: uppercase;
  }

  /* ── Animation ── */
  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }