/* ===== TREATMENT ===== */
  .treatment-section {
    background: var(--navy);
    position: relative;
    overflow: hidden;
  }

  .treatment-section::before {
    content: 'TREATMENT';
    position: absolute;
    right: -8px; bottom: -16px;
    font-family: 'Noto Serif JP', serif;
    font-size: clamp(60px, 10vw, 110px);
    font-weight: 700;
    color: rgba(255,255,255,0.04);
    letter-spacing: 0.05em;
    line-height: 1;
    pointer-events: none;
    white-space: nowrap;
  }

  .treatment-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 36px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .treatment-header .section-label { color: var(--pink-light); }
  .treatment-header .section-title { color: var(--white); margin-bottom: 0; }

  .treatment-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--pink-light);
    text-decoration: none;
    border: 1px solid rgba(255,214,229,0.35);
    padding: 8px 20px;
    border-radius: 50px;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }

  .treatment-more:hover {
    background: rgba(240,62,122,0.25);
    border-color: var(--pink-main);
    color: #fff;
  }

  .treatment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  @media (max-width: 900px) {
    .treatment-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 540px) {
    .treatment-grid { grid-template-columns: 1fr; }
  }

  .treatment-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,214,229,0.15);
    border-radius: 18px;
    padding: 28px 24px 24px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    overflow: hidden;
    transition: background 0.25s, border-color 0.25s, transform 0.25s;
    animation: fadeUp 0.7s ease both;
  }

  .treatment-card:nth-child(1) { animation-delay: 0.15s; }
  .treatment-card:nth-child(2) { animation-delay: 0.22s; }
  .treatment-card:nth-child(3) { animation-delay: 0.29s; }
  .treatment-card:nth-child(4) { animation-delay: 0.36s; }
  .treatment-card:nth-child(5) { animation-delay: 0.43s; }
  .treatment-card:nth-child(6) { animation-delay: 0.50s; }

  /* ホバー時の左ボーダー光 */
  .treatment-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--pink-main), var(--pink-light));
    border-radius: 3px 0 0 3px;
    opacity: 0;
    transition: opacity 0.25s;
  }

  .treatment-card:hover {
    background: rgba(240,62,122,0.1);
    border-color: rgba(240,62,122,0.4);
    transform: translateY(-3px);
  }

  .treatment-card:hover::before { opacity: 1; }

  .treatment-card-icon {
    font-size: 24px;
    margin-bottom: 14px;
    display: block;
    line-height: 1;
    color: var(--pink-light);
  }

  .treatment-card-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 17px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 10px;
    line-height: 1.45;
  }

  .treatment-card-desc {
    font-size: 12px;
    color: rgba(255,255,255,0.55);
    line-height: 1.8;
    flex: 1;
  }

  .treatment-card-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 18px;
    font-size: 11px;
    font-weight: 700;
    color: var(--pink-main);
    letter-spacing: 0.05em;
    transition: gap 0.2s;
  }

  .treatment-card:hover .treatment-card-link { gap: 9px; }

  .treatment-card-link::after {
    content: '→';
    font-size: 12px;
  }