.mkdt-price-sim, .mkdt-price-sim *, .mkdt-price-sim *::before, .mkdt-price-sim *::after { box-sizing: border-box; }

  .mkdt-price-sim {
    --ink: #1A1A1A;
    --ink-soft: #4B4B4B;
    --red: #D9291C;
    --red-dark: #B32115;
    --paper: #FFFFFF;
    --paper-soft: #FAFAFA;
    --gray: #6B7280;
    --line: #E6E6E6;
    --white: #FFFFFF;

    background: var(--paper);
    color: var(--ink);
    font-family: 'Inter', 'Yu Mincho', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    max-width: 100%;
    overflow-x: clip;
  }

  /* ========== LAYOUT ========== */
  .mkdt-price-sim .price-sim__page { display: flex; flex-direction: column; background: var(--paper); max-width: 100%; overflow-x: clip; }

  .mkdt-price-sim .price-sim__header {
    background: var(--paper);
    color: var(--ink);
    padding: 24px 40px;
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .mkdt-price-sim .price-sim__header-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
  }
  .mkdt-price-sim .price-sim__brand-mark {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--ink);
  }
  .mkdt-price-sim .price-sim__brand-mark .price-sim__dot { color: var(--red); }
  .mkdt-price-sim .price-sim__header-meta {
    font-size: 13px;
    color: var(--gray);
    letter-spacing: 0.05em;
  }

  .mkdt-price-sim .price-sim__hero {
    max-width: 1280px;
    margin: 0 auto;
    padding: 64px 40px 24px;
    text-align: center;
  }
  .mkdt-price-sim .price-sim__hero-eyebrow {
    font-size: 13px;
    letter-spacing: 0.32em;
    font-weight: 600;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 16px;
  }
  .mkdt-price-sim .price-sim__hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.1;
    margin: 0 0 20px;
    color: var(--ink);
    letter-spacing: -0.01em;
  }
  .mkdt-price-sim .price-sim__hero-lead {
    font-size: 18px;
    line-height: 1.7;
    color: var(--ink-soft);
    margin: 0 auto;
    max-width: 760px;
  }

  .mkdt-price-sim .price-sim__main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 40px 80px;
    flex: 1;
    width: 100%;
  }

  /* ========== 2-COLUMN LAYOUT ========== */
  .mkdt-price-sim .price-sim__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    /* price-sim.js が右カラムを position: absolute で下端固定する際の基準 */
    position: relative;
  }

  .mkdt-price-sim .form-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 40px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    min-width: 0;
    max-width: 100%;
  }
  .mkdt-price-sim .form-card-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--ink);
    margin: 0 0 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--red);
  }

  /* ========== FORM ELEMENTS ========== */
  .mkdt-price-sim .price-sim__field { margin-bottom: 32px; }
  .mkdt-price-sim .price-sim__field:last-child { margin-bottom: 0; }
  .mkdt-price-sim .price-sim__field-group-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin: 36px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
  }
  .mkdt-price-sim .price-sim__field-group-label:first-of-type { margin-top: 4px; }
  .mkdt-price-sim .field-group-fixed { color: var(--gray); }
  .mkdt-price-sim .field-group-linked { color: var(--red); }
  .mkdt-price-sim .field-group-option { color: var(--ink); }

  /* 尺に関係なく金額が決まる項目：グレーの左ボーダー */
  .mkdt-price-sim .price-sim__field-fixed {
    padding-left: 14px;
    border-left: 3px solid var(--gray);
  }
  .mkdt-price-sim .price-sim__field-fixed .field-num { background: var(--gray); }

  /* 尺・尺に応じて金額が変わる項目：赤の左ボーダー */
  .mkdt-price-sim .price-sim__field-linked {
    padding-left: 14px;
    border-left: 3px solid var(--red);
  }
  .mkdt-price-sim .price-sim__field-note-linked {
    margin: 10px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--red);
    opacity: 0.85;
  }

  /* オプション：尺にも回数にも連動しない固定額項目 */
  .mkdt-price-sim .price-sim__field-option {
    padding-left: 14px;
    border-left: 3px solid var(--ink);
  }
  .mkdt-price-sim .price-sim__field-option .field-num,
  .mkdt-price-sim .field-num-option { background: var(--ink); }

  .mkdt-price-sim .price-sim__field-label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 12px;
    gap: 6px 12px;
  }
  .mkdt-price-sim .price-sim__field-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .mkdt-price-sim .field-num {
    display: inline-block;
    width: 26px;
    height: 26px;
    background: var(--red);
    color: var(--white);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 800;
    line-height: 26px;
    text-align: center;
    font-family: 'Inter', sans-serif;
  }
  .mkdt-price-sim .price-sim__field-hint {
    font-size: 12px;
    color: var(--gray);
    letter-spacing: 0.05em;
  }
  .mkdt-price-sim .price-sim__field-addon {
    font-size: 16px;
    font-weight: 800;
    color: var(--red);
    font-family: 'Inter', sans-serif;
  }

  .mkdt-price-sim .price-sim__field-control { margin-top: 8px; }

  /* Segmented buttons (radio-style) */
  .mkdt-price-sim .price-sim__seg {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .mkdt-price-sim .price-sim__seg-scroll {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    overscroll-behavior-x: contain;
    touch-action: pan-x;
    padding-bottom: 4px;
  }
  .mkdt-price-sim .price-sim__seg-scroll .price-sim__seg-option {
    flex: 0 0 auto;
    scroll-snap-align: start;
  }
  .mkdt-price-sim .price-sim__seg-scroll::-webkit-scrollbar {
    height: 6px;
  }
  .mkdt-price-sim .price-sim__seg-scroll::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 3px;
  }
  .mkdt-price-sim .price-sim__seg-option {
    flex: 1;
    min-width: 90px;
    padding: 12px 16px;
    background: var(--paper-soft);
    border: 2px solid var(--line);
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s ease;
    font-size: 13px;
    color: var(--ink);
    font-weight: 600;
  }
  .mkdt-price-sim .price-sim__seg-option:hover {
    border-color: var(--red);
    background: var(--white);
  }
  .mkdt-price-sim .price-sim__seg-option.price-sim__active {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
  }
  .mkdt-price-sim .price-sim__seg-sub {
    display: block;
    font-size: 11px;
    font-weight: 400;
    margin-top: 4px;
    opacity: 0.85;
  }

  /* Field note (small disclaimer under a field) */
  .mkdt-price-sim .price-sim__field-note {
    margin: 10px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--ink);
    opacity: 0.7;
    font-family: 'Yu Mincho', 'Hiragino Mincho ProN', serif;
    padding: 8px 10px;
    background: rgba(217, 41, 28, 0.05);
    border-left: 2px solid var(--red);
  }

  /* ========== RESULT PANEL ========== */
  /* PC幅での追従・下端ストップは position: sticky ではなく price-sim.js が
     window.scrollY と position: fixed で制御する（埋め込み先サイトの
     overflow-x: hidden 等で position: sticky が機能しないケースがあるため） */
  .mkdt-price-sim .price-sim__result-card {
    background: var(--white);
    color: var(--ink);
    border: 2px solid var(--red);
    border-radius: 4px;
    padding: 32px;
  }
  .mkdt-price-sim .price-sim__result-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--red);
    color: var(--white);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.15em;
    border-radius: 2px;
    margin-bottom: 20px;
  }
  .mkdt-price-sim .price-sim__result-label {
    font-size: 13px;
    letter-spacing: 0.2em;
    font-weight: 600;
    opacity: 0.6;
    margin-bottom: 8px;
    text-transform: uppercase;
  }
  .mkdt-price-sim .price-sim__result-total {
    font-size: 64px;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    line-height: 1;
    color: var(--red);
    margin: 0;
  }
  .mkdt-price-sim .price-sim__result-total-sub {
    font-size: 14px;
    opacity: 0.75;
    margin-top: 10px;
    color: var(--ink-soft);
  }
  .mkdt-price-sim .price-sim__result-total-sub strong {
    color: var(--red);
    font-weight: 800;
  }
  .mkdt-price-sim .price-sim__result-divider {
    height: 1px;
    background: var(--line);
    margin: 28px 0;
  }
  .mkdt-price-sim .price-sim__breakdown {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .mkdt-price-sim .price-sim__breakdown-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 4px 12px;
    padding: 10px 0;
    font-size: 14px;
    border-bottom: 1px dashed var(--line);
  }
  .mkdt-price-sim .price-sim__breakdown-row:last-child { border-bottom: none; }
  .mkdt-price-sim .price-sim__breakdown-name { flex: 1 1 auto; min-width: 0; color: var(--ink-soft); }
  .mkdt-price-sim .price-sim__breakdown-price {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    color: var(--ink);
    white-space: nowrap;
  }
  .mkdt-price-sim .price-sim__breakdown-price.price-sim__zero { opacity: 0.4; }
  .mkdt-price-sim .price-sim__breakdown-price.price-sim__quote { color: var(--red); font-size: 12px; }
  .mkdt-price-sim .price-sim__quote-note { color: var(--red); opacity: 0.9; }
  .mkdt-price-sim .price-sim__breakdown-note {
    font-size: 11px;
    color: var(--ink-soft);
    opacity: 0.75;
    margin-top: 12px;
    line-height: 1.5;
  }

  .mkdt-price-sim .price-sim__cta-button {
    display: block;
    width: 100%;
    padding: 20px;
    background: var(--red);
    color: var(--white) !important;
    text-align: center;
    text-decoration: none;
    border-radius: 4px;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.05em;
    margin-top: 24px;
    transition: background 0.15s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
  }
  .mkdt-price-sim .price-sim__cta-button:hover { background: var(--red-dark); color: var(--white) !important; }
  .mkdt-price-sim .price-sim__cta-note {
    font-size: 12px;
    text-align: center;
    margin-top: 12px;
    opacity: 0.7;
    line-height: 1.5;
    color: var(--gray);
  }

  .mkdt-price-sim .price-sim__trust-row {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--line);
  }
  .mkdt-price-sim .price-sim__trust-item {
    flex: 1;
    text-align: center;
  }
  .mkdt-price-sim .price-sim__trust-item .price-sim__num {
    font-size: 22px;
    font-weight: 800;
    color: var(--red);
    font-family: 'Inter', sans-serif;
    line-height: 1;
    margin-bottom: 4px;
  }
  .mkdt-price-sim .price-sim__trust-item .price-sim__lab {
    font-size: 11px;
    opacity: 0.7;
    line-height: 1.4;
    color: var(--gray);
  }

  /* ========== FOOTER ========== */
  .mkdt-price-sim .price-sim__footer {
    background: var(--paper-soft);
    color: var(--red);
    text-align: center;
    padding: 32px 40px;
    font-size: 12px;
    border-top: 1px solid var(--line);
  }

  /* ========== RESPONSIVE ========== */
  @media (max-width: 980px) {
    .mkdt-price-sim .price-sim__grid { grid-template-columns: 1fr; }
    .mkdt-price-sim .price-sim__hero-title { font-size: 36px; }
    .mkdt-price-sim .price-sim__hero { padding: 40px 24px 16px; }
    .mkdt-price-sim .price-sim__main { padding: 24px 24px 60px; }
    .mkdt-price-sim .form-card { padding: 28px; }
    .mkdt-price-sim .price-sim__result-card { padding: 28px; position: static; }
    .mkdt-price-sim .price-sim__result-total { font-size: 48px; }
    .mkdt-price-sim .price-sim__seg-option { min-width: 80px; }
    .mkdt-price-sim .price-sim__header { padding: 20px 24px; }
    .mkdt-price-sim .price-sim__brand-mark { font-size: 16px; }
    .mkdt-price-sim .price-sim__header-meta { font-size: 11px; }
  }
  @media (max-width: 600px) {
    .mkdt-price-sim .price-sim__seg-option { min-width: 70px; padding: 10px 8px; font-size: 12px; }
    .mkdt-price-sim .price-sim__hero-title { font-size: 28px; }
    .mkdt-price-sim .price-sim__hero-lead { font-size: 13px; }
    .mkdt-price-sim .price-sim__hero { padding: 28px 16px 12px; }
    .mkdt-price-sim .price-sim__main { padding: 16px 16px 40px; }
    .mkdt-price-sim .form-card,
    .mkdt-price-sim .price-sim__result-card { padding: 20px; }
    .mkdt-price-sim .price-sim__field { margin-bottom: 24px; }
    .mkdt-price-sim .price-sim__field-fixed,
    .mkdt-price-sim .price-sim__field-linked,
    .mkdt-price-sim .price-sim__field-option { padding-left: 10px; }
    .mkdt-price-sim .price-sim__field-name { font-size: 14px; flex-wrap: wrap; }
    .mkdt-price-sim .price-sim__field-hint { font-size: 11px; }
    .mkdt-price-sim .price-sim__field-group-label { font-size: 11px; margin: 28px 0 12px; }
    .mkdt-price-sim .price-sim__result-total { font-size: 34px; word-break: break-all; }
    .mkdt-price-sim .price-sim__result-total-sub { font-size: 12px; }
    .mkdt-price-sim .price-sim__breakdown-row { font-size: 13px; }
    .mkdt-price-sim .price-sim__cta-button { font-size: 15px; padding: 16px; }
    .mkdt-price-sim .price-sim__trust-row { gap: 8px; }
    .mkdt-price-sim .price-sim__trust-item .price-sim__num { font-size: 17px; }
    .mkdt-price-sim .price-sim__trust-item .price-sim__lab { font-size: 10px; }
    .mkdt-price-sim .price-sim__header { padding: 16px; }
    .mkdt-price-sim .price-sim__header-inner { gap: 6px; }
    .mkdt-price-sim .price-sim__footer { padding: 24px 16px; font-size: 11px; }
  }
  @media (max-width: 380px) {
    .mkdt-price-sim .price-sim__seg-option { min-width: 60px; padding: 8px 6px; font-size: 11px; }
    .mkdt-price-sim .price-sim__seg-sub { font-size: 10px; }
    .mkdt-price-sim .price-sim__result-total { font-size: 28px; }
    .mkdt-price-sim .price-sim__hero-title { font-size: 24px; }
  }