/* ============================================================================
 * Kotaro Studio Front LP — External Stylesheet
 * パス: coldbox-child/css/lp.css
 *
 * 元: pages/frontpage-v2.html の <style> ブロック (line 144-3373) を外部化。
 * 配信: functions.php Section 25 が is_front_page() のとき wp_enqueue_style する。
 *
 * 利点 (この外部化で得られる効果):
 *   - LP HTML が 88KB 軽量化 → TTFB / FCP 改善
 *   - CSS がブラウザキャッシュされる → 2 回目以降の訪問が劇的に高速化
 *   - HTTP/2 で HTML と並列ダウンロード可能
 *   - functions.php 経由のため display=optional 等の最適化が効く
 *
 * 鉄則: 編集は必ずこのファイル単独で行い、Cyberduck でアップロード。
 * ============================================================================ */

/* ===========================================================================
   Kotaro Studio Front LP v2 - Unified Stylesheet (#kfp scoped)
   配色: 黒 #111 + ゴールド #c5a059 + 白 / クリーム #fdfbf3
   書体: 見出し = Noto Serif JP / 本文 = Hiragino Kaku Gothic
=========================================================================== */
#kfp {
  --kfp-ink: #111111;
  --kfp-ink-soft: #333333;
  --kfp-gold: #c5a059;
  --kfp-gold-deep: #b89b5e;
  --kfp-gold-bg: rgba(197, 160, 89, 0.08);
  --kfp-gold-line: rgba(197, 160, 89, 0.35);
  --kfp-bg: #ffffff;
  --kfp-bg-alt: #fafafa;
  --kfp-bg-cream: #fdfbf3;
  --kfp-text: #333333;
  --kfp-muted: #666666;
  --kfp-line: #e6e6e6;
  --kfp-red: #c92a2a;
  --kfp-japan-red: #e60012;

  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--kfp-text);
  line-height: 1.85;
  font-size: 17px;
  background: var(--kfp-bg);
}
/* === v2.2 ROOT CAUSE FIX (2026-05-18) ===
   Coldbox テーマは html { font-size: 62.5% } を採用しており、
   その結果 18px = 10px (本来は 16px) で計算される。
   この影響で文字が極小に見える問題があったため、本セクション全体を
   px 基準に変換した。テーマに依存しない絶対サイズ。
   将来 Coldbox 以外のテーマに変えても挙動は変わらない。
=========================================== */
#kfp *, #kfp *::before, #kfp *::after { box-sizing: border-box; }

#kfp .kfp-wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
#kfp .kfp-narrow { max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* v3: 全セクションに scroll-margin-top を持たせて、sticky ヘッダーで隠れないように */
#kfp [id^="kfp-"] { scroll-margin-top: 100px; }

/* ============================================================
   v3.1 JAPANESE LINE-BREAK FIX (重要)
   ----------------------------------------------------------
   日本語のデフォルト折り返しは「どの文字と文字の間でも改行可」のため、
   「一本一/本」「マイクロフォ/ン」のような途中切れが多発する。
   word-break: auto-phrase (Chrome 119+ / Edge 119+) は単語境界を
   日本語辞書で判定して、人間的な改行位置を選ぶ近代的プロパティ。
   line-break: strict は補助的に、半角句読点や小書き文字での
   不自然な改行を抑止する。
   両者を組み合わせると、編集時に <br> を打たなくても綺麗に折り返す。
============================================================ */
#kfp p,
#kfp h1,
#kfp h2,
#kfp h3,
#kfp h4,
#kfp li,
#kfp dt,
#kfp dd,
#kfp blockquote,
#kfp .kfp-hero-title,
#kfp .kfp-q-mega,
#kfp .kfp-final-quote,
#kfp .kfp-other-choice-quote {
  word-break: auto-phrase;
  line-break: strict;
  overflow-wrap: break-word;
  /* auto-phrase 非対応ブラウザでも、最低限の strict break で
     不自然な箇所での折り返しを避ける */
}

/* ============================================================
   v3.2 WORD MODE (Hybrid)
   .kfp-editable クラスを付けた要素は、コード内の改行・スペースが
   そのまま画面に反映される (Word/Pages と同じ感覚)。
   ユーザーが文章を編集する時、Enter キーで改行を入れたい場所だけ
   このクラスを使用する。画面幅が狭くなった場合の自動折り返しも
   同時に効くため、スマホでも破綻しない。
============================================================ */
#kfp .kfp-editable {
  white-space: pre-wrap;
}

#kfp .kfp-eyebrow {
  display: inline-block;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--kfp-gold);
  text-transform: uppercase;
  margin-bottom: 25px;
}

#kfp .kfp-serif {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
}

#kfp .kfp-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--kfp-gold) 50%, transparent);
  margin: 0;
}

/* ============================================================
   Section 1: HERO
============================================================ */
#kfp-hero {
  padding: clamp(40px, 6vw, 80px) 0;
  background: var(--kfp-bg);
}
/* v3.6: Hero だけ全幅を 1400px に広げる (改行強制を防ぐ) */
#kfp-hero .kfp-wrap {
  max-width: 1400px;
}
/* v3.8: 写真が主役・テキストはサブのバランスに再調整
   v4.2: align-items を center → start に変更し H1 を画面上部に飛び込ませる
   (テキスト列上部の謎の余白を撤去) */
#kfp-hero .kfp-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr; /* 写真側を大きく */
  align-items: start;
  gap: clamp(32px, 4vw, 56px);
}
/* v4.1: H1 が2行7文字×2 になるのでテキストカラムの最大幅を拡張 */
#kfp-hero .kfp-hero-text { max-width: 640px; }
#kfp-hero .kfp-hero-img-wrap { /* legacy support */ }
#kfp-hero .kfp-hero-title {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  /* v4.1: 親はサイズの基準だけ。改行は子 span 側の display:block で制御 */
  font-size: clamp(32px, 3.6vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--kfp-ink);
  letter-spacing: 0.04em;
  margin: 0 0 22px;
}
/* v4.1: 各行を block 化し nowrap で折り返しを抑止 */
#kfp-hero .kfp-hero-title-line {
  display: block;
  white-space: nowrap;
  line-height: 1.55; /* 行間に余白を持たせて明朝の呼吸を作る */
}
/* v4.1: 2行目を 1.6em インデント。和文の正統派タイポグラフィ */
#kfp-hero .kfp-hero-title-line-2 {
  padding-left: 1.6em;
}
/* v4.1: 結びにゴールド下線で「ブランド宣言の決め」を作る
   v4.3: 筆描きアニメで width 0 → 56px */
#kfp-hero .kfp-hero-title::after {
  content: '';
  display: block;
  width: 0;
  height: 3px;
  background: var(--kfp-gold);
  margin-top: 18px;
  animation: kfp-title-underline-draw 0.75s 1.25s cubic-bezier(0.22, 0.68, 0.16, 1) forwards;
}
@keyframes kfp-title-underline-draw {
  to { width: 56px; }
}

/* ============================================================
   v4.3: Hero ローディング演出 — 明朝の筆運び
   1) H1 の各文字が下から blur 解除しながら現れる (墨で書かれるように)
   2) ゴールド下線が左から右へ筆描き
   3) H2 以下が連鎖フェードアップ
   4) モザイク写真がゆっくりズームアウト (映画のオープニング感)
   ※ prefers-reduced-motion を尊重して静止表示にフォールバック
============================================================ */
#kfp-hero .kfp-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(14px);
  filter: blur(4px);
  animation: kfp-char-reveal 0.6s cubic-bezier(0.22, 0.68, 0.16, 1) forwards;
  will-change: opacity, transform, filter;
}
@keyframes kfp-char-reveal {
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}
/* v4.4: インライン style="--i:N" を撤廃し :nth-child() で遅延を直接定義
   (WordPress / Coldbox / キャッシュが style 属性を削っても影響しない) */
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(1) { animation-delay: 0.20s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(2) { animation-delay: 0.26s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(3) { animation-delay: 0.32s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(4) { animation-delay: 0.38s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(5) { animation-delay: 0.44s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(6) { animation-delay: 0.50s; }
#kfp-hero .kfp-hero-title-line-1 .kfp-char:nth-child(7) { animation-delay: 0.56s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(1) { animation-delay: 0.62s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(2) { animation-delay: 0.68s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(3) { animation-delay: 0.74s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(4) { animation-delay: 0.80s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(5) { animation-delay: 0.86s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(6) { animation-delay: 0.92s; }
#kfp-hero .kfp-hero-title-line-2 .kfp-char:nth-child(7) { animation-delay: 0.98s; }

/* H2 以下の要素を連鎖フェードアップ (筆運びの後を追う) */
#kfp-hero .kfp-hero-h2,
#kfp-hero .kfp-hero-desc,
#kfp-hero .kfp-hero-prices,
#kfp-hero .kfp-hero-usp,
#kfp-hero .kfp-hero-buttons,
#kfp-hero .kfp-hero-trust,
#kfp-hero .kfp-hero-stock {
  opacity: 0;
  transform: translateY(12px);
  animation: kfp-hero-fade-up 0.65s cubic-bezier(0.22, 0.68, 0.16, 1) forwards;
}
#kfp-hero .kfp-hero-h2     { animation-delay: 1.45s; }
#kfp-hero .kfp-hero-desc   { animation-delay: 1.60s; }
#kfp-hero .kfp-hero-prices { animation-delay: 1.75s; }
#kfp-hero .kfp-hero-usp    { animation-delay: 1.90s; }
#kfp-hero .kfp-hero-buttons{ animation-delay: 2.05s; }
#kfp-hero .kfp-hero-trust  { animation-delay: 2.20s; }
#kfp-hero .kfp-hero-stock  { animation-delay: 2.35s; }
@keyframes kfp-hero-fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* モザイク写真をゆっくりズームアウト (映画のオープニング感) */
#kfp-hero .kfp-hero-mosaic-cell img {
  transform: scale(1.06);
  animation: kfp-mosaic-zoom 2.6s cubic-bezier(0.22, 0.68, 0.16, 1) 0.1s forwards;
  will-change: transform;
}
@keyframes kfp-mosaic-zoom {
  to { transform: scale(1); }
}

/* アクセシビリティ: 動きを抑制するユーザーには静止表示 */
@media (prefers-reduced-motion: reduce) {
  #kfp-hero .kfp-char,
  #kfp-hero .kfp-hero-h2,
  #kfp-hero .kfp-hero-desc,
  #kfp-hero .kfp-hero-prices,
  #kfp-hero .kfp-hero-usp,
  #kfp-hero .kfp-hero-buttons,
  #kfp-hero .kfp-hero-trust,
  #kfp-hero .kfp-hero-stock,
  #kfp-hero .kfp-hero-mosaic-cell img {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    animation: none !important;
  }
  #kfp-hero .kfp-hero-title::after {
    width: 56px !important;
    animation: none !important;
  }
}
/* v3.7: H2 サブヘッドライン (3秒で勝つベネフィット訴求) */
/* v3.8: サイズ調整 + 余白圧縮 / v4.0: H1 にゴールド下線を移したため H2::after は撤去 */
#kfp-hero .kfp-hero-h2 {
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--kfp-ink);
  letter-spacing: 0.02em;
  margin: 0 0 18px;
  display: block;
}
#kfp-hero .kfp-hero-h2 .accent {
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: var(--kfp-gold-deep);
  font-weight: 900;
  letter-spacing: 0.01em;
  margin-left: 6px;
}

/* v3.7→v3.8: Hero 内の在庫表示 (希少性の即時アピール) */
#kfp-hero .kfp-hero-stock {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  padding: 8px 14px;
  background: var(--kfp-bg-cream);
  border: 1px solid var(--kfp-gold-line);
  border-radius: 4px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--kfp-ink);
}
#kfp-hero .kfp-stock-pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--kfp-gold-deep);
  border-radius: 50%;
  animation: kfp-hero-stock-pulse 1.8s ease-in-out infinite;
}
@keyframes kfp-hero-stock-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.3); }
}
#kfp-hero .kfp-hero-stock-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--kfp-gold-deep);
  text-transform: uppercase;
}
#kfp-hero .kfp-hero-stock-items {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
#kfp-hero .kfp-hero-stock-item {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  color: var(--kfp-ink);
  font-weight: 600;
  font-size: 13px;
}
#kfp-hero .kfp-hero-stock-item strong {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: var(--kfp-red);
}
/* v3.6→v3.8: 4枚モザイク (右側コラージュ・拡大版)
   v4.3: 6枚 (2×3) に拡張 — 写真コラム高さをテキスト高さに揃える
   aspect-ratio を 1.05/1 → 1/1.42 にして縦長に */
#kfp-hero .kfp-hero-mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 14px;
  aspect-ratio: 1 / 1.42;
  width: 100%;
  max-width: none;
  margin-left: auto;
}
#kfp-hero .kfp-hero-mosaic-cell {
  overflow: hidden;
  border-radius: 6px;
  position: relative;
  background: #f4f4f4;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
}
#kfp-hero .kfp-hero-mosaic-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s ease;
}
#kfp-hero .kfp-hero-mosaic-cell:hover img {
  transform: scale(1.06);
}
#kfp-hero .kfp-hero-desc {
  font-size: clamp(15px, 1.2vw, 17px); /* v3.8: 縮小 (本文の主張を抑える) */
  line-height: 1.95;
  color: var(--kfp-ink-soft);
  margin: 0 0 24px;
}
#kfp-hero .kfp-hero-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
#kfp-hero .kfp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 28px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid transparent;
}
#kfp-hero .kfp-btn-primary {
  background: var(--kfp-ink);
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  border-color: var(--kfp-ink);
}
#kfp-hero .kfp-btn-primary::after {
  content: '→';
  margin-left: 12px;
  transition: transform 0.3s ease;
}
#kfp-hero .kfp-btn-primary:hover {
  background: var(--kfp-gold);
  border-color: var(--kfp-gold);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(197, 160, 89, 0.4);
}
#kfp-hero .kfp-btn-primary:hover::after { transform: translateX(5px); }
#kfp-hero .kfp-btn-secondary {
  background: #fff;
  color: var(--kfp-ink);
  border-color: var(--kfp-line);
}
#kfp-hero .kfp-btn-secondary:hover {
  border-color: var(--kfp-ink);
  background: var(--kfp-bg-alt);
}
#kfp-hero .kfp-hero-trust {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--kfp-muted);
  flex-wrap: wrap;
}
#kfp-hero .kfp-hero-stars { color: var(--kfp-gold); letter-spacing: 1px; font-size: 15px; }
#kfp-hero .kfp-hero-img-frame {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.1);
}
#kfp-hero .kfp-hero-img-frame img {
  width: 100%; height: auto; display: block;
  transition: transform 0.8s ease;
}
#kfp-hero .kfp-hero-img-frame:hover img { transform: scale(1.04); }
/* v3 ADDED: Price tags in Hero */
/* v3.8: サイズと間隔をやや縮小 */
#kfp-hero .kfp-hero-prices {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 0 0 18px;
  flex-wrap: wrap;
}
#kfp-hero .kfp-price-item { display: flex; flex-direction: column; gap: 4px; }
#kfp-hero .kfp-price-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  letter-spacing: 0.15em;
  color: var(--kfp-muted);
  text-transform: uppercase;
  font-weight: 700;
}
#kfp-hero .kfp-price-value {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 26px; /* v3.8: 30→26px */
  font-weight: 800;
  color: var(--kfp-ink);
  line-height: 1;
}
#kfp-hero .kfp-price-divider {
  width: 1px;
  height: 38px;
  background: var(--kfp-line);
}
#kfp-hero .kfp-price-tax {
  font-size: 14px;
  color: var(--kfp-muted);
  margin-left: 4px;
}

/* v3 ADDED: USP checklist */
/* v3.8: サイズと間隔を圧縮 */
#kfp-hero .kfp-hero-usp {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#kfp-hero .kfp-hero-usp li {
  font-size: 14px;
  color: var(--kfp-text);
  line-height: 1.7;
  font-weight: 500;
}
#kfp-hero .kfp-hero-usp li::before {
  content: "✓";
  color: var(--kfp-gold);
  font-weight: 800;
  margin-right: 10px;
}

/* v3 ADDED: Sub Nav (3 chips) */
#kfp-hero .kfp-hero-subnav {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin: 60px auto 0;
  padding-top: 36px;
  border-top: 1px solid var(--kfp-line);
  flex-wrap: wrap;
  max-width: 720px;
}
#kfp-hero .kfp-hero-subnav a {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--kfp-muted);
  text-decoration: none;
  padding: 12px 22px;
  border: 1px solid var(--kfp-line);
  border-radius: 999px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}
#kfp-hero .kfp-hero-subnav a:hover,
#kfp-hero .kfp-hero-subnav a.is-active {
  color: var(--kfp-ink);
  border-color: var(--kfp-gold);
  background: var(--kfp-gold-bg);
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  #kfp-hero .kfp-hero-grid {
    grid-template-columns: 1fr;
    flex-direction: column-reverse;
  }
  #kfp-hero .kfp-hero-text { max-width: 100%; }
  #kfp-hero .kfp-btn { width: 100%; }
  #kfp-hero .kfp-hero-prices { justify-content: center; }
  #kfp-hero .kfp-price-tax { margin: 0; width: 100%; text-align: center; }
  /* v4.7: モバイルでは Row 3 (タンゴ + オーケストラ) を非表示 → 画像 2 枚分節約
     display:none でブラウザは画像をロードしない (LCP / Speed Index 改善) */
  #kfp-hero .kfp-hero-mosaic { aspect-ratio: 1 / 1; grid-template-rows: 1fr 1fr; }
  #kfp-hero .kfp-hero-mosaic-row3 { display: none; }
  #kfp-hero .kfp-hero-title {
    /* v4.1: モバイルでも 2行7文字×2 + 2行目インデントを維持 */
    font-size: clamp(30px, 7.6vw, 42px);
    line-height: 1;
    text-align: left;
  }
  #kfp-hero .kfp-hero-title-line {
    line-height: 1.55;
  }
  #kfp-hero .kfp-hero-title-line-2 {
    padding-left: 1.6em;
  }
  #kfp-hero .kfp-hero-title::after {
    margin-top: 14px;
  }
  #kfp-hero .kfp-hero-mosaic { max-width: 100%; }
}

/* ============================================================
   Section 2: THE QUESTION (Hook)
============================================================ */
#kfp-question {
  padding: clamp(80px, 10vw, 140px) 0;
  background: var(--kfp-bg-alt);
  text-align: center;
}
#kfp-question .kfp-q-mega {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: clamp(38px, 5.4vw, 66px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--kfp-ink);
  margin: 26px auto 26px;
  letter-spacing: 0.02em;
  max-width: 920px;
}
#kfp-question .kfp-q-mega .accent { color: var(--kfp-gold); }
#kfp-question .kfp-q-sub {
  font-size: clamp(19px, 1.6vw, 23px);
  color: var(--kfp-text);
  margin: 0 auto 35px;
  max-width: 640px;
  line-height: 2.1;
}
#kfp-question .kfp-q-arrow {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--kfp-gold), transparent);
  margin: 0 auto;
}
#kfp-question .kfp-q-prices {
  display: flex;
  justify-content: center;
  gap: clamp(20px, 4vw, 60px);
  margin: 35px auto 18px;
  flex-wrap: wrap;
}
#kfp-question .kfp-q-price-item {
  text-align: center;
}
#kfp-question .kfp-q-price-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  letter-spacing: 0.2em;
  color: var(--kfp-muted);
  text-transform: uppercase;
  margin-bottom: 9px;
  display: block;
}
#kfp-question .kfp-q-price-value {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(35px, 3.3vw, 51px);
  font-weight: 800;
  color: var(--kfp-ink);
  line-height: 1;
}
#kfp-question .kfp-q-vs {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(26px, 2.6vw, 37px);
  color: var(--kfp-gold);
  align-self: center;
  font-weight: 700;
}

/* ============================================================
   v3.3: Integrated Blind Test (Question 内に統合)
============================================================ */
#kfp-question .kfp-q-blind {
  max-width: 980px;
  margin: 60px auto 0;
  padding: 50px clamp(20px, 4vw, 50px);
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-top: 4px solid var(--kfp-gold);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.04);
  text-align: center;
}
#kfp-question .kfp-q-blind-head {
  margin-bottom: 36px;
}
#kfp-question .kfp-q-blind-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--kfp-gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 14px;
}
#kfp-question .kfp-q-blind-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 14px;
  line-height: 1.5;
}
#kfp-question .kfp-q-blind-desc {
  font-size: 17px;
  color: var(--kfp-text);
  line-height: 1.9;
  margin: 0;
}
#kfp-question .kfp-q-blind-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  text-align: left;
}
#kfp-question .kfp-q-blind-card {
  padding: 26px;
  background: var(--kfp-bg-alt);
  border: 1px solid var(--kfp-line);
  border-radius: 2px;
}
#kfp-question .kfp-q-blind-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--kfp-ink);
  text-transform: uppercase;
  display: block;
  margin-bottom: 14px;
}
#kfp-question .kfp-q-blind-hint {
  font-size: 14px;
  color: var(--kfp-muted);
  margin-bottom: 16px;
  font-style: italic;
}
#kfp-question .kfp-q-blind audio { width: 100%; height: 44px; }
#kfp-question .kfp-q-blind-note {
  font-size: 14px;
  color: var(--kfp-muted);
  font-style: italic;
  margin: 28px 0 0;
}

/* スクロール結果発表 (v3.4: 白基調・清潔感・派手な演出) */
#kfp-question .kfp-reveal {
  max-width: 980px;
  margin: 50px auto 0;
  padding: 70px clamp(20px, 4vw, 50px);
  background: linear-gradient(180deg, #ffffff 0%, var(--kfp-bg-cream) 100%);
  color: var(--kfp-ink);
  border: 1px solid var(--kfp-gold-line);
  border-top: 4px solid var(--kfp-gold);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
/* スポットライト効果 (上から光が差し込む) */
#kfp-question .kfp-reveal::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse at center top, rgba(197, 160, 89, 0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 1.5s ease;
  pointer-events: none;
  z-index: 0;
}
#kfp-question .kfp-reveal.is-revealed::before {
  opacity: 1;
  animation: kfp-reveal-spotlight 3s ease-in-out infinite;
}
@keyframes kfp-reveal-spotlight {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50%      { opacity: 1;   transform: translateX(-50%) scale(1.08); }
}
/* 紙吹雪/光の粒子効果 (擬似要素で軽量に) */
#kfp-question .kfp-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(197, 160, 89, 0.6), transparent),
    radial-gradient(2px 2px at 80% 20%, rgba(197, 160, 89, 0.5), transparent),
    radial-gradient(1.5px 1.5px at 30% 70%, rgba(197, 160, 89, 0.6), transparent),
    radial-gradient(1.5px 1.5px at 70% 80%, rgba(197, 160, 89, 0.5), transparent),
    radial-gradient(2px 2px at 10% 90%, rgba(197, 160, 89, 0.4), transparent),
    radial-gradient(2px 2px at 90% 60%, rgba(197, 160, 89, 0.5), transparent);
  pointer-events: none;
  opacity: 0;
  z-index: 0;
  transition: opacity 1.5s ease 0.3s;
}
#kfp-question .kfp-reveal.is-revealed::after {
  opacity: 1;
  animation: kfp-reveal-sparkle 6s ease-in-out infinite;
}
@keyframes kfp-reveal-sparkle {
  0%, 100% { opacity: 0.6; }
  50%      { opacity: 1; }
}

#kfp-question .kfp-reveal-prompt {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--kfp-gold-deep);
  text-transform: uppercase;
  margin: 0 0 28px;
  position: relative;
  z-index: 1;
}
#kfp-question .kfp-reveal-content {
  opacity: 0;
  transform: translateY(40px) scale(0.94);
  filter: blur(8px);
  transition: opacity 1.1s cubic-bezier(0.22, 1, 0.36, 1),
              transform 1.1s cubic-bezier(0.22, 1, 0.36, 1),
              filter 1.1s ease;
  position: relative;
  z-index: 1;
}
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-content {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}
#kfp-question .kfp-reveal-q {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 42px;
  line-height: 1.6;
}
#kfp-question .kfp-reveal-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 760px;
  margin: 0 auto 44px;
}
/* 通常カード (DPA) - 控えめ */
#kfp-question .kfp-reveal-card {
  background: #fff;
  border: 1px solid var(--kfp-line);
  padding: 32px 22px;
  border-radius: 4px;
  position: relative;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 0.4s, transform 0.8s ease 0.4s;
}
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-card {
  opacity: 1;
  transform: translateY(0);
}
#kfp-question .kfp-reveal-card-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--kfp-muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 16px;
}
#kfp-question .kfp-reveal-card-name {
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 8px;
}
#kfp-question .kfp-reveal-card-price {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  color: var(--kfp-muted);
  margin: 0;
}

/* P-86S カード - 派手・主役 */
#kfp-question .kfp-reveal-card--ours {
  background: linear-gradient(135deg, #fff 0%, var(--kfp-bg-cream) 100%);
  border: 2px solid var(--kfp-gold);
  box-shadow: 0 24px 60px rgba(197, 160, 89, 0.3),
              0 0 0 4px rgba(197, 160, 89, 0.08);
  transition: opacity 0.8s ease 0.7s, transform 0.9s cubic-bezier(0.34, 1.56, 0.64, 1) 0.7s,
              box-shadow 0.4s ease;
  transform: translateY(20px) scale(0.95);
}
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-card--ours {
  transform: translateY(0) scale(1.06);
}
/* P-86S カードの四隅にゴールドのスパークル */
#kfp-question .kfp-reveal-card--ours::before,
#kfp-question .kfp-reveal-card--ours::after {
  content: '✦';
  position: absolute;
  color: var(--kfp-gold);
  font-size: 26px;
  opacity: 0;
  transition: opacity 0.5s ease 1.2s;
}
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-card--ours::before,
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-card--ours::after {
  opacity: 1;
}
#kfp-question .kfp-reveal-card--ours::before {
  top: -14px; right: -14px;
  animation: kfp-sparkle-rotate 4s ease-in-out infinite 1.2s;
}
#kfp-question .kfp-reveal-card--ours::after {
  bottom: -14px; left: -14px;
  animation: kfp-sparkle-rotate 4s ease-in-out infinite 2.5s reverse;
}
@keyframes kfp-sparkle-rotate {
  0%, 100% { transform: rotate(0deg) scale(1); opacity: 0.9; }
  50%      { transform: rotate(180deg) scale(1.3); opacity: 1; }
}
#kfp-question .kfp-reveal-card--ours .kfp-reveal-card-label { color: var(--kfp-gold-deep); }
#kfp-question .kfp-reveal-card--ours .kfp-reveal-card-name {
  color: var(--kfp-ink);
  font-size: 26px;
}
#kfp-question .kfp-reveal-card--ours .kfp-reveal-card-price {
  color: var(--kfp-gold-deep);
  font-weight: 800;
  font-size: 20px;
}
#kfp-question .kfp-reveal-tag {
  display: inline-block;
  margin-top: 16px;
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--kfp-ink);
  background: linear-gradient(90deg, var(--kfp-gold-deep), var(--kfp-gold), var(--kfp-gold-deep));
  background-size: 200% 100%;
  padding: 7px 18px;
  border-radius: 999px;
  animation: kfp-tag-shimmer 3s ease-in-out infinite;
}
@keyframes kfp-tag-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* メッセージ — 派手なゴールドのアンダーライン */
#kfp-question .kfp-reveal-message {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 600;
  color: var(--kfp-ink);
  line-height: 1.9;
  margin: 0;
  position: relative;
  z-index: 1;
}
#kfp-question .kfp-reveal-message .accent {
  background-image: linear-gradient(transparent 65%, rgba(197, 160, 89, 0.5) 65%);
  background-repeat: no-repeat;
  background-size: 0% 100%;
  transition: background-size 1.2s cubic-bezier(0.22, 1, 0.36, 1) 1.5s;
  padding: 0 4px;
  font-weight: 700;
  color: var(--kfp-gold-deep);
}
#kfp-question .kfp-reveal.is-revealed .kfp-reveal-message .accent {
  background-size: 100% 100%;
}

@media (max-width: 700px) {
  #kfp-question .kfp-q-blind-grid { grid-template-columns: 1fr; }
  #kfp-question .kfp-reveal-cards { grid-template-columns: 1fr; }
  #kfp-question .kfp-reveal.is-revealed .kfp-reveal-card--ours { transform: translateY(0) scale(1); }
}

/* ============================================================
   Section 3: BLIND TEST (Audio)
============================================================ */
#kfp-blind {
  padding: clamp(60px, 8vw, 100px) 0;
  background: var(--kfp-bg);
}
#kfp-blind .kfp-blind-head { text-align: center; margin-bottom: 50px; }
#kfp-blind .kfp-blind-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(32px, 3.3vw, 44px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
  line-height: 1.5;
}
#kfp-blind .kfp-blind-desc {
  font-size: clamp(18px, 1.4vw, 21px);
  color: var(--kfp-text);
  max-width: 720px;
  margin: 0 auto;
  line-height: 2;
}
#kfp-blind .kfp-blind-card {
  max-width: 980px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-top: 4px solid var(--kfp-gold);
  padding: clamp(28px, 4vw, 50px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.04);
}
#kfp-blind .kfp-blind-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
#kfp-blind .kfp-blind-item {
  padding: 26px;
  background: var(--kfp-bg-alt);
  border: 1px solid var(--kfp-line);
  border-radius: 2px;
  transition: all 0.3s ease;
}
#kfp-blind .kfp-blind-item:hover { border-color: var(--kfp-gold); background: #fff; }
#kfp-blind .kfp-blind-label {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--kfp-ink);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
#kfp-blind .kfp-blind-price-tag {
  font-size: 17px;
  color: var(--kfp-muted);
  margin-bottom: 21px;
  display: block;
}
#kfp-blind audio { width: 100%; height: 48px; }
#kfp-blind .kfp-blind-note {
  text-align: center;
  font-size: 17px;
  color: var(--kfp-muted);
  margin-top: 38px;
  font-style: italic;
  line-height: 1.8;
}
@media (max-width: 700px) {
  #kfp-blind .kfp-blind-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Section 4: PIANO 4-MIC TEST
============================================================ */
#kfp-piano {
  padding: clamp(60px, 8vw, 100px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-piano .kfp-piano-head {
  text-align: center;
  margin-bottom: 40px;
}
#kfp-piano .kfp-piano-player {
  font-size: 18px;
  color: var(--kfp-gold);
  font-weight: 500;
  margin: 0 0 18px;
  letter-spacing: 0.05em;
}
#kfp-piano .kfp-piano-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(32px, 3.3vw, 44px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
  line-height: 1.5;
}
#kfp-piano .kfp-piano-desc {
  font-size: clamp(18px, 1.4vw, 21px);
  color: var(--kfp-text);
  max-width: 640px;
  margin: 0 auto;
  line-height: 2;
}
#kfp-piano .kfp-piano-stage {
  max-width: 980px;
  margin: 0 auto;
}
#kfp-piano .kfp-yt-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 2px;
  background: #000;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.12);
}
#kfp-piano .kfp-yt-wrap iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}

/* v2.4: YouTube facade (サムネ + 中央プレイボタン)
   クリック前は YouTube に通信しない → Roboto / Google Fonts 一切ロードしない */
#kfp-piano .kfp-yt-facade {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: #000;
  display: block;
}
#kfp-piano .kfp-yt-facade img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.92;
  transition: opacity 0.3s, transform 4s ease-out;
}
#kfp-piano .kfp-yt-facade:hover img {
  opacity: 1;
  transform: scale(1.02);
}
#kfp-piano .kfp-yt-facade::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 88px; height: 88px;
  margin: -44px 0 0 -44px;
  border-radius: 50%;
  background: rgba(17, 17, 17, 0.85);
  border: 2px solid var(--kfp-gold);
  transition: transform 0.3s, background 0.3s;
}
#kfp-piano .kfp-yt-facade::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  margin: -14px 0 0 -9px;
  width: 0; height: 0;
  border-style: solid;
  border-width: 14px 0 14px 24px;
  border-color: transparent transparent transparent var(--kfp-gold);
  z-index: 2;
  pointer-events: none;
}
#kfp-piano .kfp-yt-facade:hover::after {
  transform: scale(1.08);
  background: rgba(17, 17, 17, 0.95);
}
#kfp-piano .kfp-piano-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 25px;
}
#kfp-piano .kfp-piano-btn {
  background: #fff;
  border: 1px solid var(--kfp-line);
  padding: 16px 8px;
  font-family: inherit;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}
#kfp-piano .kfp-piano-btn:hover {
  background: var(--kfp-ink);
  color: #fff;
  border-color: var(--kfp-ink);
}
#kfp-piano .kfp-piano-btn span {
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--kfp-muted);
  margin-bottom: 4px;
}
#kfp-piano .kfp-piano-btn:hover span { color: var(--kfp-gold); }
/* v3.5: Piano 結果発表を派手な演出に */
#kfp-piano .kfp-piano-reveal {
  margin-top: 50px;
  padding: 60px clamp(20px, 4vw, 50px);
  background: linear-gradient(180deg, #ffffff 0%, var(--kfp-bg-cream) 100%);
  border: 1px solid var(--kfp-gold-line);
  border-top: 4px solid var(--kfp-gold);
  border-radius: 4px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
/* スポットライト */
#kfp-piano .kfp-piano-reveal::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse at center top, rgba(197, 160, 89, 0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 1.5s ease;
  pointer-events: none;
  z-index: 0;
}
#kfp-piano .kfp-piano-reveal.is-revealed::before {
  opacity: 1;
  animation: kfp-piano-spotlight 3s ease-in-out infinite;
}
@keyframes kfp-piano-spotlight {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50%      { opacity: 1;   transform: translateX(-50%) scale(1.08); }
}
/* 紙吹雪/光の粒子 */
#kfp-piano .kfp-piano-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 18% 35%, rgba(197, 160, 89, 0.55), transparent),
    radial-gradient(2px 2px at 82% 25%, rgba(197, 160, 89, 0.5), transparent),
    radial-gradient(1.5px 1.5px at 28% 75%, rgba(197, 160, 89, 0.6), transparent),
    radial-gradient(1.5px 1.5px at 72% 78%, rgba(197, 160, 89, 0.5), transparent),
    radial-gradient(2px 2px at 12% 88%, rgba(197, 160, 89, 0.45), transparent),
    radial-gradient(2px 2px at 88% 55%, rgba(197, 160, 89, 0.5), transparent);
  pointer-events: none;
  opacity: 0;
  z-index: 0;
  transition: opacity 1.5s ease 0.3s;
}
#kfp-piano .kfp-piano-reveal.is-revealed::after {
  opacity: 1;
  animation: kfp-piano-sparkle 6s ease-in-out infinite;
}
@keyframes kfp-piano-sparkle {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}

#kfp-piano .kfp-piano-reveal-prompt {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--kfp-gold-deep);
  text-transform: uppercase;
  margin: 0 0 24px;
  position: relative;
  z-index: 1;
}
#kfp-piano .kfp-piano-reveal-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 36px;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 1;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1),
              transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-reveal-title {
  opacity: 1;
  transform: translateY(0);
}

#kfp-piano .kfp-piano-mics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 920px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
#kfp-piano .kfp-piano-mics > span {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px 14px;
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-radius: 4px;
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  color: var(--kfp-text);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease,
              transform 0.7s ease;
}
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-mics > span:nth-child(1) { transition-delay: 0.3s; }
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-mics > span:nth-child(2) { transition-delay: 0.45s; }
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-mics > span:nth-child(3) { transition-delay: 0.6s; }
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-mics > span:nth-child(4) { transition-delay: 0.75s; }
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-mics > span {
  opacity: 1;
  transform: translateY(0);
}

/* 正解 (X-86S) のカードは派手に */
#kfp-piano .kfp-piano-correct {
  background: linear-gradient(135deg, #fff 0%, var(--kfp-bg-cream) 100%) !important;
  border: 2px solid var(--kfp-gold) !important;
  font-weight: 800;
  color: var(--kfp-gold-deep) !important;
  font-size: 17px !important;
  box-shadow: 0 14px 36px rgba(197, 160, 89, 0.3),
              0 0 0 4px rgba(197, 160, 89, 0.08) !important;
  position: relative;
  z-index: 2;
}
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-correct {
  transform: translateY(0) scale(1.06) !important;
}
/* 四隅にスパークル */
#kfp-piano .kfp-piano-correct::before,
#kfp-piano .kfp-piano-correct::after {
  content: '✦';
  position: absolute;
  color: var(--kfp-gold);
  font-size: 20px;
  opacity: 0;
  transition: opacity 0.5s ease 1.2s;
}
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-correct::before,
#kfp-piano .kfp-piano-reveal.is-revealed .kfp-piano-correct::after {
  opacity: 1;
}
#kfp-piano .kfp-piano-correct::before {
  top: -10px; right: -10px;
  animation: kfp-piano-sparkle-rotate 4s ease-in-out infinite 1.2s;
}
#kfp-piano .kfp-piano-correct::after {
  bottom: -10px; left: -10px;
  animation: kfp-piano-sparkle-rotate 4s ease-in-out infinite 2.5s reverse;
}
@keyframes kfp-piano-sparkle-rotate {
  0%, 100% { transform: rotate(0deg) scale(1); opacity: 0.9; }
  50%      { transform: rotate(180deg) scale(1.3); opacity: 1; }
}

#kfp-piano .kfp-piano-correct-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 5px 14px;
  background: linear-gradient(90deg, var(--kfp-gold-deep), var(--kfp-gold), var(--kfp-gold-deep));
  background-size: 200% 100%;
  color: var(--kfp-ink);
  font-family: "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  border-radius: 999px;
  animation: kfp-piano-tag-shimmer 3s ease-in-out infinite;
}
@keyframes kfp-piano-tag-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

@media (max-width: 700px) {
  #kfp-piano .kfp-piano-mics { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  #kfp-piano .kfp-piano-nav { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   Section 5: 3 REASONS
============================================================ */
#kfp-reasons {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg);
}
#kfp-reasons .kfp-reasons-head {
  text-align: center;
  margin-bottom: 60px;
}
#kfp-reasons .kfp-reasons-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  line-height: 1.5;
  margin: 0;
  letter-spacing: 0.02em;
}
#kfp-reasons .kfp-reasons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto;
}
#kfp-reasons .kfp-reason {
  text-align: center;
  padding: 0 10px;
}
#kfp-reasons .kfp-reason-num {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 77px;
  font-weight: 800;
  color: var(--kfp-gold);
  line-height: 1;
  margin-bottom: 21px;
  letter-spacing: -0.02em;
}
#kfp-reasons .kfp-reason-title {
  font-family: "Noto Serif JP", serif;
  font-size: 25px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
  line-height: 1.6;
}
#kfp-reasons .kfp-reason-body {
  font-size: 19px;
  line-height: 2;
  color: var(--kfp-text);
  max-width: 360px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  #kfp-reasons .kfp-reasons-grid { grid-template-columns: 1fr; gap: 60px; }
}

/* ============================================================
   Section 6: THE STORY (E-E-A-T)
============================================================ */
#kfp-story {
  padding: clamp(80px, 10vw, 140px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-story .kfp-story-inner { max-width: 760px; margin: 0 auto; padding: 0 24px; }
#kfp-story .kfp-story-head {
  text-align: center;
  margin-bottom: 60px;
}
#kfp-story .kfp-story-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(35px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  line-height: 1.5;
  margin: 0;
}
#kfp-story .kfp-story-body {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: 21px;
  line-height: 2.25;
  color: var(--kfp-ink-soft);
}
#kfp-story .kfp-story-body p { margin: 0 0 38px; }
#kfp-story .kfp-story-sub {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 27px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 66px 0 38px;
  padding-left: 22px;
  border-left: 3px solid var(--kfp-gold);
  line-height: 1.5;
}
#kfp-story .kfp-story-quote {
  background: #fff;
  padding: 36px 32px;
  border: 1px solid var(--kfp-line);
  margin: 52px 0;
  text-align: center;
}
#kfp-story .kfp-story-quote-text {
  font-family: "Noto Serif JP", serif;
  font-style: italic;
  font-size: 24px;
  color: var(--kfp-ink);
  line-height: 1.9;
  margin: 0;
}
#kfp-story .kfp-story-quote-author {
  display: block;
  margin-top: 25px;
  font-size: 18px;
  color: var(--kfp-muted);
  font-style: normal;
  letter-spacing: 0.05em;
}
#kfp-story .kfp-story-mark {
  background: linear-gradient(transparent 65%, rgba(197, 160, 89, 0.3) 65%);
  font-weight: 700;
}
#kfp-story .kfp-story-solution {
  background: var(--kfp-ink);
  color: #fff;
  padding: 50px 36px;
  margin-top: 52px;
  border-top: 4px solid var(--kfp-gold);
}
#kfp-story .kfp-solution-item {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  align-items: flex-start;
}
#kfp-story .kfp-solution-item:last-child { margin-bottom: 0; }
#kfp-story .kfp-solution-num {
  color: var(--kfp-gold);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 25px;
  font-weight: 900;
  line-height: 1;
  flex-shrink: 0;
  letter-spacing: -0.02em;
  margin-top: 4px;
}
#kfp-story .kfp-solution-text {
  font-family: "Hiragino Kaku Gothic ProN", sans-serif;
  font-style: normal;
  font-size: 19px;
  line-height: 2;
  color: #e5e5e5;
}
#kfp-story .kfp-solution-text strong { color: #fff; font-weight: 700; }
#kfp-story .kfp-story-close {
  margin-top: 56px;
  text-align: center;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 21px;
  line-height: 2.1;
}
#kfp-story .kfp-story-sign {
  display: block;
  margin-top: 28px;
  text-align: right;
  font-style: normal;
  font-size: 18px;
  color: var(--kfp-muted);
}

/* ============================================================
   Section 7: ANATOMY (Technical Authority)
============================================================ */
#kfp-anatomy {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg);
}
#kfp-anatomy .kfp-anatomy-head {
  text-align: center;
  margin-bottom: 60px;
}
#kfp-anatomy .kfp-anatomy-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  line-height: 1.5;
  margin: 0 0 21px;
}
#kfp-anatomy .kfp-anatomy-desc {
  max-width: 700px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 2;
  color: var(--kfp-text);
}
/* v3.5: Anatomy を縦組レイアウト + 横長カード化 */
#kfp-anatomy .kfp-anatomy-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 920px;
  margin: 0 auto;
}
#kfp-anatomy .kfp-anatomy-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 50px;
  padding: 50px 56px;
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-radius: 4px;
  text-align: left;
  position: relative;
  transition: all 0.3s ease;
  align-items: center;
}
#kfp-anatomy .kfp-anatomy-card:hover {
  border-color: var(--kfp-gold);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.06);
  transform: translateY(-3px);
}
#kfp-anatomy .kfp-anatomy-card-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: var(--kfp-gold-deep);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}
#kfp-anatomy .kfp-anatomy-card-h {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 18px;
  line-height: 1.55;
  letter-spacing: 0.02em;
}
#kfp-anatomy .kfp-anatomy-card-b {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Helvetica Neue", sans-serif;
  font-size: 17px;
  line-height: 2.1;
  color: var(--kfp-text);
  letter-spacing: 0.02em;
}
#kfp-anatomy .kfp-anatomy-card-num {
  position: static;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 96px;
  font-weight: 800;
  color: var(--kfp-gold);
  line-height: 0.9;
  letter-spacing: -0.04em;
  text-align: center;
  border-right: 1px solid var(--kfp-gold-line);
  padding-right: 30px;
}
@media (max-width: 768px) {
  #kfp-anatomy .kfp-anatomy-card {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 36px 28px;
    text-align: center;
  }
  #kfp-anatomy .kfp-anatomy-card-num {
    border-right: none;
    padding-right: 0;
    border-bottom: 1px solid var(--kfp-gold-line);
    padding-bottom: 18px;
    font-size: 64px;
  }
  #kfp-anatomy .kfp-anatomy-card-b { text-align: left; }
}

/* v3 → v3.9: Anatomy 引用 (黒地から白基調へ刷新) */
#kfp-anatomy .kfp-anatomy-quote {
  max-width: 820px;
  margin: 70px auto 0;
  padding: 56px 56px 48px;
  background: #ffffff;
  color: var(--kfp-ink);
  position: relative;
  border: 1px solid var(--kfp-gold-line);
  border-top: 4px solid var(--kfp-gold);
  border-radius: 4px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.04);
}
/* 大きなゴールドの引用記号 */
#kfp-anatomy .kfp-anatomy-quote::before {
  content: '"';
  position: absolute;
  top: 6px;
  left: 36px;
  font-family: "Noto Serif JP", serif;
  font-size: 110px;
  color: var(--kfp-gold);
  line-height: 1;
  opacity: 0.35;
}
#kfp-anatomy .kfp-anatomy-quote-text {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-style: italic;
  font-size: 26px;
  line-height: 2.05;
  color: var(--kfp-ink);
  text-align: center;
  margin: 0 0 24px;
  font-weight: 500;
  position: relative;
}
#kfp-anatomy .kfp-anatomy-quote-cite {
  display: block;
  text-align: right;
  font-family: "Noto Serif JP", serif;
  font-size: 15px;
  color: var(--kfp-gold-deep);
  letter-spacing: 0.05em;
  font-style: normal;
  font-weight: 600;
}
@media (max-width: 700px) {
  #kfp-anatomy .kfp-anatomy-quote { padding: 42px 28px 36px; }
  #kfp-anatomy .kfp-anatomy-quote-text { font-size: 20px; }
}

/* ============================================================
   Section 8: USE CASES
============================================================ */
#kfp-use {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-use .kfp-use-head {
  text-align: center;
  margin-bottom: 60px;
}
#kfp-use .kfp-use-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  line-height: 1.5;
  margin: 0 0 21px;
}
#kfp-use .kfp-use-desc {
  max-width: 680px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 2;
  color: var(--kfp-text);
}
#kfp-use .kfp-use-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
#kfp-use .kfp-use-card {
  padding: 40px 32px;
  background: #fff;
  border: 1px solid var(--kfp-line);
  position: relative;
  transition: all 0.3s ease;
}
#kfp-use .kfp-use-card:hover {
  border-color: var(--kfp-gold);
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.06);
}
#kfp-use .kfp-use-card-scene {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--kfp-gold);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: block;
}
#kfp-use .kfp-use-card-h {
  font-family: "Noto Serif JP", serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
  line-height: 1.55;
}
#kfp-use .kfp-use-card-b {
  font-size: 19px;
  line-height: 2;
  color: var(--kfp-text);
  margin: 0 0 21px;
}
#kfp-use .kfp-use-card-tip {
  font-size: 17px;
  color: var(--kfp-muted);
  font-style: italic;
  border-left: 2px solid var(--kfp-gold);
  padding-left: 15px;
  line-height: 1.8;
}
@media (max-width: 700px) {
  #kfp-use .kfp-use-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Section 9: PRODUCT COMPARE (P-86S vs X-86S)
============================================================ */
#kfp-compare {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg);
}
#kfp-compare .kfp-compare-head { text-align: center; margin-bottom: 50px; }
#kfp-compare .kfp-japan-badge {
  display: inline-block;
  background: var(--kfp-japan-red);
  color: #fff;
  padding: 5px 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  border-radius: 2px;
}
#kfp-compare .kfp-compare-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(35px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
  line-height: 1.45;
}
#kfp-compare .kfp-compare-desc {
  font-size: 20px;
  line-height: 2;
  color: var(--kfp-text);
  max-width: 680px;
  margin: 0 auto;
}
#kfp-compare .kfp-compare-table-wrap {
  max-width: 920px;
  margin: 0 auto;
}
#kfp-compare .kfp-compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
}
#kfp-compare .kfp-compare-table th,
#kfp-compare .kfp-compare-table td {
  padding: 26px 16px;
  border-bottom: 1px solid var(--kfp-line);
  text-align: center;
  vertical-align: top;
}
#kfp-compare .kfp-compare-table th {
  font-size: 16px;
  color: var(--kfp-muted);
  font-weight: 700;
  width: 19%;
  background: var(--kfp-bg-alt);
  letter-spacing: 0.05em;
}
/* v3 ADDED: World Standard reference column */
#kfp-compare .kfp-col-world {
  background: #fafafa;
  color: var(--kfp-muted);
}
#kfp-compare .kfp-col-world .kfp-spec-label,
#kfp-compare .kfp-col-world .kfp-spec-desc {
  color: var(--kfp-muted);
  font-weight: 400;
}
#kfp-compare .kfp-col-world .kfp-model-name {
  color: var(--kfp-muted);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}
#kfp-compare .kfp-col-world .kfp-model-sub {
  font-size: 12px;
  font-weight: 500;
}
#kfp-compare .kfp-col-featured {
  background: var(--kfp-bg-cream);
  border-left: 2px solid var(--kfp-gold);
  border-right: 2px solid var(--kfp-gold);
  position: relative;
}
#kfp-compare .kfp-recommend-banner {
  position: absolute;
  top: -24px;
  left: -2px;
  right: -2px;
  background: linear-gradient(90deg, var(--kfp-gold-deep), var(--kfp-gold), var(--kfp-gold-deep));
  color: var(--kfp-ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  font-weight: 900;
  padding: 8px 0;
  border-radius: 2px 2px 0 0;
  letter-spacing: 0.15em;
}
#kfp-compare .kfp-model-name {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--kfp-ink);
  display: block;
  margin-bottom: 7px;
}
#kfp-compare .kfp-model-name-dim { color: var(--kfp-muted); }
#kfp-compare .kfp-model-sub {
  font-size: 15px;
  color: var(--kfp-muted);
  font-weight: 600;
}
#kfp-compare .kfp-spec-label {
  display: block;
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--kfp-ink);
}
#kfp-compare .kfp-spec-desc {
  font-size: 18px;
  line-height: 1.8;
  color: var(--kfp-text);
}
@media (max-width: 600px) {
  #kfp-compare .kfp-compare-table { table-layout: auto; }
  #kfp-compare .kfp-compare-table th { font-size: 12px; padding: 12px 6px; }
  #kfp-compare .kfp-model-name { font-size: 19px; }
  #kfp-compare .kfp-spec-desc { font-size: 14px; }
}

/* ============================================================
   Section 10: CUSTOMER VOICES
============================================================ */
#kfp-voices {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-voices .kfp-voices-head { text-align: center; margin-bottom: 50px; }
#kfp-voices .kfp-voices-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 28px;
  line-height: 1.5;
}
#kfp-voices .kfp-voices-summary {
  margin-bottom: 18px;
}
#kfp-voices .kfp-stars-big {
  color: var(--kfp-gold);
  font-size: 38px;
  letter-spacing: 3px;
  display: inline-block;
  vertical-align: middle;
}
#kfp-voices .kfp-score-big {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--kfp-ink);
  display: inline-block;
  vertical-align: middle;
  margin-left: 14px;
}
#kfp-voices .kfp-voices-summary-text {
  font-size: 19px;
  color: var(--kfp-text);
  margin: 0;
}
#kfp-voices .kfp-voices-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}
#kfp-voices .kfp-voice-card {
  background: #fff;
  border: 1px solid var(--kfp-line);
  padding: 28px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
#kfp-voices .kfp-voice-card:hover {
  border-color: var(--kfp-gold);
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.06);
}
#kfp-voices .kfp-voice-stars {
  color: var(--kfp-gold);
  font-size: 19px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
#kfp-voices .kfp-voice-headline {
  font-family: "Noto Serif JP", serif;
  font-size: 21px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 19px;
  line-height: 1.55;
}
#kfp-voices .kfp-voice-body {
  font-size: 18px;
  line-height: 1.95;
  color: var(--kfp-text);
  margin-bottom: 26px;
  flex-grow: 1;
}
#kfp-voices .kfp-voice-meta {
  border-top: 1px solid var(--kfp-line);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#kfp-voices .kfp-voice-use {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--kfp-gold);
  background: var(--kfp-bg-cream);
  padding: 5px 12px;
  border-radius: 2px;
  width: fit-content;
  letter-spacing: 0.05em;
}
#kfp-voices .kfp-voice-user {
  font-size: 15px;
  color: var(--kfp-muted);
}
#kfp-voices .kfp-verified {
  color: #2e8b57;
  font-weight: 700;
  margin-right: 4px;
}

/* ============================================================
   Section 11: MAKER'S PROMISE (NEW - Risk Reversal)
============================================================ */
#kfp-promise {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-ink);
  color: #fff;
  position: relative;
}
#kfp-promise::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--kfp-gold);
}
#kfp-promise .kfp-promise-head { text-align: center; margin-bottom: 60px; }
#kfp-promise .kfp-promise-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--kfp-gold);
  text-transform: uppercase;
  margin-bottom: 28px;
  display: block;
}
#kfp-promise .kfp-promise-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(35px, 3.8vw, 51px);
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
  margin: 0 0 21px;
  letter-spacing: 0.02em;
}
#kfp-promise .kfp-promise-sub {
  font-size: 21px;
  color: #dadada;
  max-width: 680px;
  margin: 0 auto;
  line-height: 2;
}
#kfp-promise .kfp-promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}
#kfp-promise .kfp-promise-item {
  text-align: center;
  padding: 32px 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
}
#kfp-promise .kfp-promise-num {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: var(--kfp-gold);
  margin-bottom: 21px;
}
#kfp-promise .kfp-promise-h {
  font-family: "Noto Serif JP", serif;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 21px;
  line-height: 1.55;
}
#kfp-promise .kfp-promise-b {
  font-size: 18px;
  line-height: 2;
  color: #dadada;
}
#kfp-promise .kfp-promise-signature {
  margin-top: 72px;
  text-align: center;
}
#kfp-promise .kfp-sig-name {
  font-family: "Noto Serif JP", serif;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.1em;
}
#kfp-promise .kfp-sig-role {
  display: block;
  margin-top: 12px;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  color: var(--kfp-gold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}
@media (max-width: 900px) {
  #kfp-promise .kfp-promise-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Section 12: FAQ + Gallery
============================================================ */
#kfp-faq {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg);
}
#kfp-faq .kfp-faq-inner { max-width: 820px; margin: 0 auto; padding: 0 24px; }
#kfp-faq .kfp-faq-head { text-align: center; margin-bottom: 50px; }
#kfp-faq .kfp-faq-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.8vw, 47px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0;
  line-height: 1.5;
}
#kfp-faq .kfp-faq-list { border-top: 1px solid var(--kfp-line); }
#kfp-faq .kfp-faq-item {
  border-bottom: 1px solid var(--kfp-line);
}
#kfp-faq .kfp-faq-item summary {
  padding: 28px 0;
  font-family: "Noto Serif JP", serif;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  position: relative;
  outline: none;
  color: var(--kfp-ink);
  padding-right: 44px;
}
#kfp-faq .kfp-faq-item summary::-webkit-details-marker { display: none; }
#kfp-faq .kfp-faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 32px;
  font-weight: 300;
  color: var(--kfp-gold);
  transition: 0.2s;
}
#kfp-faq .kfp-faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
#kfp-faq .kfp-faq-answer {
  padding: 0 0 32px;
  font-size: 19px;
  color: var(--kfp-text);
  line-height: 2.05;
}
#kfp-faq .kfp-faq-action {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: var(--kfp-ink);
  color: #fff !important;
  text-decoration: none !important;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-top: 21px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
#kfp-faq .kfp-faq-action:hover {
  background: var(--kfp-gold);
  color: var(--kfp-ink) !important;
  transform: translateY(-2px);
}

/* Modal gallery */
#kfp-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2147483647;
  align-items: center;
  justify-content: center;
}
#kfp-modal.open { display: flex; }
#kfp-modal .kfp-modal-close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: var(--kfp-gold);
  font-size: 52px;
  cursor: pointer;
  line-height: 1;
  font-weight: 200;
}
#kfp-modal .kfp-modal-img-wrap {
  position: relative;
  max-width: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
}
#kfp-modal img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
}
#kfp-modal .kfp-modal-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(197, 160, 89, 0.3);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}
#kfp-modal .kfp-modal-nav:hover { background: var(--kfp-gold); border-color: var(--kfp-gold); }
#kfp-modal .kfp-modal-prev { left: -80px; }
#kfp-modal .kfp-modal-next { right: -80px; }
#kfp-modal .kfp-modal-cap {
  position: absolute;
  bottom: -50px;
  left: 0; right: 0;
  text-align: center;
  color: #fff;
  font-size: 17px;
  letter-spacing: 0.05em;
}
@media (max-width: 900px) {
  #kfp-modal .kfp-modal-prev { left: 10px; }
  #kfp-modal .kfp-modal-next { right: 10px; }
  #kfp-modal .kfp-modal-nav { width: 44px; height: 44px; font-size: 21px; }
}

/* ============================================================
   Section 13: STOCK + PURCHASE
============================================================ */
#kfp-purchase {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-purchase .kfp-stock-card {
  max-width: 900px;
  margin: 0 auto 60px;
  padding: 50px 40px;
  background: #fff;
  border: 1px solid var(--kfp-gold-line);
  border-top: 4px solid var(--kfp-gold);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.05);
  text-align: center;
}
#kfp-purchase .kfp-stock-pulse {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--kfp-bg-alt);
  border: 1px solid var(--kfp-line);
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 35px;
}
#kfp-purchase .kfp-pulse-dot {
  width: 10px;
  height: 10px;
  background: #34c759;
  border-radius: 50%;
  position: relative;
  animation: kfp-pulse 2s infinite;
}
@keyframes kfp-pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.6); }
  70% { box-shadow: 0 0 0 14px rgba(52, 199, 89, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 199, 89, 0); }
}
#kfp-purchase .kfp-stock-pulse-text {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--kfp-ink);
  text-transform: uppercase;
}
#kfp-purchase .kfp-stock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 26px;
}
#kfp-purchase .kfp-stock-item {
  padding: 28px;
  background: var(--kfp-bg-alt);
  border: 1px solid var(--kfp-line);
}
#kfp-purchase .kfp-stock-model {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  color: var(--kfp-muted);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
#kfp-purchase .kfp-stock-count {
  font-size: 23px;
  color: var(--kfp-ink);
  font-weight: 500;
}
#kfp-purchase .kfp-stock-count strong {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 49px;
  font-weight: 800;
  margin-right: 5px;
  vertical-align: -2px;
}
#kfp-purchase .kfp-stock-note {
  font-size: 17px;
  color: var(--kfp-muted);
  line-height: 2;
}

/* v3 ADDED: Credit Card section (心理トリガー) */
#kfp-purchase .kfp-cc-section {
  max-width: 900px;
  margin: 80px auto 50px;
  text-align: center;
}
#kfp-purchase .kfp-cc-image {
  width: 100%;
  max-width: 640px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.12);
  margin: 0 auto 40px;
  display: block;
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}
#kfp-purchase .kfp-cc-image:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.15);
}
#kfp-purchase .kfp-cc-title {
  font-family: "Noto Serif JP", serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}
#kfp-purchase .kfp-cc-desc {
  font-size: 18px;
  line-height: 2;
  color: var(--kfp-text);
  margin: 0;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* v3 ADDED: "もうひとつの選択" 引用ボックス */
#kfp-purchase .kfp-other-choice {
  max-width: 720px;
  margin: 0 auto 60px;
  padding: 40px 40px;
  background: var(--kfp-bg-cream);
  border: 1px solid var(--kfp-gold-line);
  border-radius: 4px;
  text-align: center;
}
#kfp-purchase .kfp-other-choice-eyebrow {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--kfp-gold);
  display: block;
  margin-bottom: 18px;
}
#kfp-purchase .kfp-other-choice-quote {
  font-family: "Noto Serif JP", serif;
  font-size: 24px;
  font-weight: 600;
  color: var(--kfp-ink);
  line-height: 1.9;
  margin: 0;
  letter-spacing: 0.03em;
}
#kfp-purchase .kfp-other-choice-quote em {
  font-style: italic;
  color: var(--kfp-muted);
  font-size: 18px;
  display: block;
  margin-top: 12px;
}

/* v3 ADDED: BESTSELLER badge */
#kfp-purchase .kfp-bestseller-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--kfp-gold-deep), var(--kfp-gold), var(--kfp-gold-deep));
  color: var(--kfp-ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.25em;
  padding: 8px 22px;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(197, 160, 89, 0.4);
  animation: kfp-bestseller-pulse 2.6s ease-in-out infinite;
}
@keyframes kfp-bestseller-pulse {
  0%, 100% { box-shadow: 0 6px 18px rgba(197, 160, 89, 0.4); }
  50%      { box-shadow: 0 8px 26px rgba(197, 160, 89, 0.7); }
}

/* v3 ADDED: 取扱説明書リンク */
#kfp-purchase .kfp-manual-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 14px;
  color: var(--kfp-muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}
#kfp-purchase .kfp-manual-link:hover {
  color: var(--kfp-gold);
  border-bottom-color: var(--kfp-gold);
}

/* v3.3 ADDED: ステレオ2本セット注意書き */
#kfp-purchase .kfp-stereo-notice {
  max-width: 820px;
  margin: 30px auto 0;
  padding: 26px 32px;
  background: var(--kfp-bg-cream);
  border: 1px solid var(--kfp-gold-line);
  border-radius: 4px;
}
#kfp-purchase .kfp-stereo-notice-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--kfp-gold-deep);
  margin-bottom: 14px;
}
#kfp-purchase .kfp-stereo-notice-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--kfp-ink);
  margin: 0;
}
#kfp-purchase .kfp-stereo-notice-body strong {
  color: var(--kfp-ink);
  font-weight: 700;
}
#kfp-purchase .kfp-stereo-notice-body a {
  color: var(--kfp-gold-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 700;
}

#kfp-purchase .kfp-buy-header { text-align: center; margin: 0 auto 60px; max-width: 600px; }
#kfp-purchase .kfp-buy-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 21px;
}
#kfp-purchase .kfp-buy-sub {
  font-size: 20px;
  color: var(--kfp-text);
  line-height: 2;
  margin: 0;
}
#kfp-purchase .kfp-buy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}
#kfp-purchase .kfp-buy-card {
  background: #fff;
  border: 1px solid var(--kfp-line);
  padding: 50px 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}
#kfp-purchase .kfp-buy-card.featured {
  border-color: var(--kfp-gold);
  border-top: 4px solid var(--kfp-gold);
  overflow: visible;
}
#kfp-purchase .kfp-buy-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06); }
#kfp-purchase .kfp-buy-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--kfp-gold);
  text-transform: uppercase;
  margin-bottom: 21px;
  display: block;
}
#kfp-purchase .kfp-buy-name {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 58px;
  font-weight: 800;
  margin: 0 0 9px;
  color: var(--kfp-ink);
  line-height: 1;
}
#kfp-purchase .kfp-buy-price {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 30px;
  font-weight: 600;
  color: var(--kfp-ink);
  margin-bottom: 38px;
}
#kfp-purchase .kfp-buy-desc {
  font-size: 19px;
  line-height: 2.05;
  color: var(--kfp-text);
  margin: 0 auto 38px;
  max-width: 360px;
  text-align: left;
  flex-grow: 1;
}
#kfp-purchase .kfp-buy-desc strong { color: var(--kfp-ink); font-weight: 700; }
#kfp-purchase .kfp-stripe-wrap {
  display: flex;
  justify-content: center;
  margin-top: auto;
  transform: scale(1.05);
}
/* v3.4 ADDED: Stripe Payment Link 用ボタン (Buy Button から置換) */
#kfp-purchase .kfp-buy-wrap {
  display: flex;
  justify-content: center;
  margin-top: auto;
  width: 100%;
}
#kfp-purchase .kfp-buy-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--kfp-ink);
  color: #fff;
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-decoration: none;
  padding: 20px 44px;
  border-radius: 4px;
  border: 1px solid var(--kfp-gold);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  max-width: 320px;
  min-height: 64px;
  position: relative;
  overflow: hidden;
}
#kfp-purchase .kfp-buy-link::after {
  content: '→';
  margin-left: 14px;
  font-size: 1.1em;
  transition: transform 0.3s ease;
}
#kfp-purchase .kfp-buy-link::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(197, 160, 89, 0.4), transparent);
  transition: left 0.5s ease;
}
#kfp-purchase .kfp-buy-link:hover {
  background: var(--kfp-gold);
  color: var(--kfp-ink);
  border-color: var(--kfp-gold);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(197, 160, 89, 0.5);
}
#kfp-purchase .kfp-buy-link:hover::after {
  transform: translateX(6px);
}
#kfp-purchase .kfp-buy-link:hover::before {
  left: 100%;
}
#kfp-purchase .kfp-buy-link span {
  position: relative;
  z-index: 1;
}
#kfp-purchase .kfp-sold-out {
  padding: 16px 28px;
  background: var(--kfp-bg-alt);
  color: var(--kfp-muted);
  border-radius: 999px;
  font-size: 19px;
  font-weight: 600;
  text-align: center;
  width: 100%;
  max-width: 320px;
  margin: auto auto 0;
}
#kfp-purchase .kfp-sold-out small {
  display: block;
  font-size: 15px;
  margin-top: 6px;
  font-weight: 400;
  line-height: 1.6;
}
@media (max-width: 768px) {
  #kfp-purchase .kfp-stock-grid { grid-template-columns: 1fr; }
  #kfp-purchase .kfp-buy-grid { grid-template-columns: 1fr; gap: 30px; }
  #kfp-purchase .kfp-buy-name { font-size: 42px; }
}

/* ============================================================
   Section 14: CONCIERGE (Bank/PayPal Form)
============================================================ */
#kfp-concierge {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg-cream);
}
#kfp-concierge .kfp-conc-inner { max-width: 800px; margin: 0 auto; padding: 0 24px; }
#kfp-concierge .kfp-conc-head { text-align: center; margin-bottom: 50px; }
#kfp-concierge .kfp-conc-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(33px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 28px;
  line-height: 1.5;
}
#kfp-concierge .kfp-conc-desc {
  font-size: 20px;
  line-height: 2.05;
  color: var(--kfp-text);
}
#kfp-concierge .kfp-conc-flow {
  display: flex;
  justify-content: space-between;
  margin-bottom: 50px;
  background: #fff;
  padding: 30px;
  border: 1px solid var(--kfp-gold-line);
}
#kfp-concierge .kfp-conc-step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 16px;
}
#kfp-concierge .kfp-conc-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--kfp-gold);
  font-size: 25px;
}
#kfp-concierge .kfp-conc-step-num {
  display: inline-block;
  width: 34px;
  height: 34px;
  background: var(--kfp-ink);
  color: #fff;
  border-radius: 50%;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 34px;
  margin-bottom: 14px;
}
#kfp-concierge .kfp-conc-step-h {
  font-family: "Noto Serif JP", serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin-bottom: 10px;
}
#kfp-concierge .kfp-conc-step-b {
  font-size: 17px;
  color: var(--kfp-muted);
  line-height: 1.8;
}
#kfp-concierge .kfp-conc-form {
  background: #fff;
  padding: 50px;
  border: 1px solid var(--kfp-gold-line);
}
@media (max-width: 768px) {
  #kfp-concierge .kfp-conc-flow { flex-direction: column; gap: 30px; padding: 30px 20px; }
  #kfp-concierge .kfp-conc-step:not(:last-child)::after { content: '↓'; right: 50%; bottom: -25px; top: auto; transform: translateX(50%); }
  #kfp-concierge .kfp-conc-form { padding: 30px 24px; }
}

/* ============================================================
   v3.5: ご購入の流れ (Purchase Journey)
   購入ボタンを押してから商品到着までの 6 ステップを視覚化。
   購入前の不安を解消し、安心して購入ボタンを押せる装置。
============================================================ */
#kfp-journey {
  padding: clamp(80px, 10vw, 120px) 0;
  background: var(--kfp-bg-alt);
}
#kfp-journey .kfp-journey-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
  padding: 0 24px;
}
#kfp-journey .kfp-journey-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(28px, 3.5vw, 38px);
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}
#kfp-journey .kfp-journey-desc {
  font-size: 17px;
  color: var(--kfp-text);
  line-height: 1.9;
  margin: 0;
}

#kfp-journey .kfp-journey-steps {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
#kfp-journey .kfp-journey-step {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 30px;
  align-items: center;
  padding: 26px 36px;
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-radius: 4px;
  border-left: 4px solid var(--kfp-gold);
  position: relative;
  transition: all 0.3s ease;
}
#kfp-journey .kfp-journey-step:hover {
  transform: translateX(4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
}
#kfp-journey .kfp-journey-num {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--kfp-gold-deep);
  text-align: center;
  border-right: 1px solid var(--kfp-gold-line);
  padding-right: 26px;
  position: relative;
}
#kfp-journey .kfp-journey-num strong {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 32px;
  color: var(--kfp-ink);
  letter-spacing: 0;
  margin-top: 4px;
  font-weight: 700;
}
#kfp-journey .kfp-journey-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
#kfp-journey .kfp-journey-h {
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", sans-serif;
  font-size: 19px;
  font-weight: 800;
  color: var(--kfp-ink);
  margin: 0;
  letter-spacing: 0.02em;
}
#kfp-journey .kfp-journey-b {
  font-size: 15px;
  color: var(--kfp-text);
  line-height: 1.8;
  margin: 0;
}
#kfp-journey .kfp-journey-icon {
  display: inline-block;
  margin-right: 6px;
  color: var(--kfp-gold-deep);
  font-weight: 700;
}
@media (max-width: 600px) {
  #kfp-journey .kfp-journey-step {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 22px 24px;
    text-align: left;
  }
  #kfp-journey .kfp-journey-num {
    border-right: none;
    border-bottom: 1px solid var(--kfp-gold-line);
    padding-right: 0;
    padding-bottom: 12px;
    text-align: left;
  }
  #kfp-journey .kfp-journey-num strong { display: inline-block; margin-left: 10px; margin-top: 0; }
}

/* ============================================================
   Section 15: FINAL PUSH — KUON NORMALIZE BONUS (v3.3 白基調版)
   購入者限定アプリの紹介。清潔感のある白背景。
============================================================ */
#kfp-final {
  padding: clamp(80px, 10vw, 140px) 0;
  background: var(--kfp-bg);
  color: var(--kfp-ink);
  text-align: center;
  position: relative;
  overflow: hidden;
}
#kfp-final::before {
  content: '';
  position: absolute;
  top: -30%; right: -20%;
  width: 60%; height: 100%;
  background: radial-gradient(circle, rgba(197, 160, 89, 0.06) 0%, transparent 70%);
  pointer-events: none;
  animation: kfp-bonus-aura 22s linear infinite;
}
@keyframes kfp-bonus-aura {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
#kfp-final .kfp-bonus-badge {
  display: inline-block;
  background: linear-gradient(90deg, var(--kfp-gold-deep), var(--kfp-gold), var(--kfp-gold-deep));
  background-size: 200% 100%;
  color: var(--kfp-ink);
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.25em;
  padding: 10px 28px;
  border-radius: 999px;
  margin-bottom: 28px;
  box-shadow: 0 12px 35px rgba(197, 160, 89, 0.25);
  animation: kfp-bonus-shine 3s ease-in-out infinite;
  position: relative;
  z-index: 1;
}
@keyframes kfp-bonus-shine {
  0%, 100% { background-position: 0% 50%; box-shadow: 0 12px 35px rgba(197, 160, 89, 0.25); }
  50%      { background-position: 100% 50%; box-shadow: 0 16px 45px rgba(197, 160, 89, 0.45); }
}
#kfp-final .kfp-bonus-title {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  color: var(--kfp-ink);
  line-height: 1.4;
  margin: 0 0 24px;
  letter-spacing: 0.03em;
  position: relative;
  z-index: 1;
}
#kfp-final .kfp-bonus-title .accent {
  color: var(--kfp-gold-deep);
}
#kfp-final .kfp-bonus-sub {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  letter-spacing: 0.25em;
  color: var(--kfp-gold-deep);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  text-transform: uppercase;
}
#kfp-final .kfp-bonus-lead {
  font-size: 20px;
  line-height: 2;
  color: var(--kfp-text);
  max-width: 720px;
  margin: 0 auto 50px;
  position: relative;
  z-index: 1;
}
#kfp-final .kfp-bonus-lead strong { color: var(--kfp-ink); font-weight: 700; }

#kfp-final .kfp-bonus-stage {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  padding: 0 24px;
}
#kfp-final .kfp-bonus-screenshot {
  width: 100%;
  max-width: 880px;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.08);
  margin: 0 auto 50px;
  display: block;
  border: 1px solid var(--kfp-line);
}
#kfp-final .kfp-bonus-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 0 auto 60px;
  max-width: 920px;
}
#kfp-final .kfp-bonus-feat {
  background: #fff;
  border: 1px solid var(--kfp-line);
  border-top: 3px solid var(--kfp-gold);
  padding: 28px 24px;
  border-radius: 4px;
  text-align: left;
  transition: all 0.3s ease;
}
#kfp-final .kfp-bonus-feat:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}
#kfp-final .kfp-bonus-feat-eye {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--kfp-gold-deep);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}
#kfp-final .kfp-bonus-feat-h {
  font-family: "Noto Serif JP", serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--kfp-ink);
  margin: 0 0 10px;
  line-height: 1.5;
}
#kfp-final .kfp-bonus-feat-b {
  font-size: 15px;
  line-height: 1.85;
  color: var(--kfp-text);
  margin: 0;
}
#kfp-final .kfp-bonus-info {
  background: var(--kfp-bg-cream);
  border: 1px solid var(--kfp-gold);
  border-radius: 4px;
  padding: 22px 30px;
  max-width: 720px;
  margin: 0 auto 40px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--kfp-ink);
}
#kfp-final .kfp-bonus-info strong { color: var(--kfp-gold-deep); }
#kfp-final .kfp-bonus-cta-wrap {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
  position: relative;
  z-index: 1;
}
#kfp-final .kfp-bonus-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 70px;
  padding: 0 44px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s ease;
}
#kfp-final .kfp-bonus-cta-primary {
  background: var(--kfp-ink);
  color: #fff;
  border: 1px solid var(--kfp-gold);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.15);
}
#kfp-final .kfp-bonus-cta-primary::after {
  content: '→';
  margin-left: 14px;
  font-size: 1.2em;
  transition: transform 0.3s ease;
}
#kfp-final .kfp-bonus-cta-primary:hover {
  background: var(--kfp-gold);
  color: var(--kfp-ink);
  border-color: var(--kfp-gold);
  transform: translateY(-3px);
  box-shadow: 0 20px 50px rgba(197, 160, 89, 0.4);
}
#kfp-final .kfp-bonus-cta-primary:hover::after { transform: translateX(5px); }
#kfp-final .kfp-bonus-cta-secondary {
  background: transparent;
  color: var(--kfp-ink);
  border: 1px solid var(--kfp-line);
}
#kfp-final .kfp-bonus-cta-secondary:hover {
  background: var(--kfp-bg-alt);
  border-color: var(--kfp-ink);
}
#kfp-final .kfp-bonus-note {
  margin-top: 50px;
  font-size: 14px;
  color: var(--kfp-muted);
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}
@media (max-width: 768px) {
  #kfp-final .kfp-bonus-features { grid-template-columns: 1fr; }
  #kfp-final .kfp-bonus-title { font-size: 30px; }
  #kfp-final .kfp-bonus-screenshot { border-radius: 8px; }
}

/* Final Push 旧スタイル (使わなくなったが互換性のため残す) */
#kfp-final-legacy {
  padding: clamp(80px, 10vw, 140px) 0;
  background: var(--kfp-bg);
  text-align: center;
}
#kfp-final .kfp-final-inner { max-width: 720px; margin: 0 auto; padding: 0 24px; }
#kfp-final .kfp-final-quote {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: clamp(27px, 3.3vw, 38px);
  font-weight: 600;
  line-height: 2;
  color: var(--kfp-ink);
  letter-spacing: 0.05em;
  margin: 0 0 52px;
}
#kfp-final .kfp-final-quote .accent { color: var(--kfp-gold); font-weight: 700; }
#kfp-final .kfp-final-cta-wrap { margin-bottom: 44px; }
#kfp-final .kfp-final-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 74px;
  padding: 0 54px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-decoration: none;
  background: var(--kfp-ink);
  color: #fff;
  border-radius: 4px;
  border: 1px solid var(--kfp-gold);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}
#kfp-final .kfp-final-cta::after {
  content: '→';
  margin-left: 16px;
  font-size: 1.2em;
  transition: transform 0.3s ease;
}
#kfp-final .kfp-final-cta:hover {
  background: var(--kfp-gold);
  color: var(--kfp-ink);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(197, 160, 89, 0.4);
}
#kfp-final .kfp-final-cta:hover::after { transform: translateX(6px); }
#kfp-final .kfp-final-sig {
  font-family: "Noto Serif JP", serif;
  font-style: italic;
  font-size: 20px;
  color: var(--kfp-muted);
  line-height: 2.1;
}
#kfp-final .kfp-final-sig-name {
  display: inline-block;
  margin-top: 18px;
  font-family: "Noto Serif JP", serif;
  font-style: normal;
  font-weight: 700;
  color: var(--kfp-ink);
  letter-spacing: 0.08em;
  font-size: 21px;
}

/* ============================================================
   Sticky bottom bar (appears on scroll deep)
============================================================ */
#kfp-sticky {
  position: fixed;
  left: 0; right: 0;
  bottom: 0;
  background: rgba(17, 17, 17, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  padding: 14px 24px;
  z-index: 1000;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-top: 1px solid var(--kfp-gold);
}
#kfp-sticky.show { transform: translateY(0); }
#kfp-sticky .kfp-sticky-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
#kfp-sticky .kfp-sticky-info { display: flex; flex-direction: column; gap: 2px; }
#kfp-sticky .kfp-sticky-name {
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--kfp-gold);
}
#kfp-sticky .kfp-sticky-price {
  display: none; /* v3.5: 説明文は不要 (顧客のメリットだけ大きく) */
}
#kfp-sticky .kfp-sticky-btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: var(--kfp-gold);
  color: var(--kfp-ink);
  text-decoration: none;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.15em;
  border-radius: 4px;
  transition: all 0.2s ease;
}
#kfp-sticky .kfp-sticky-btn::after { content: '→'; margin-left: 10px; }
#kfp-sticky .kfp-sticky-btn:hover { background: #fff; transform: translateY(-1px); }
@media (max-width: 600px) {
  #kfp-sticky .kfp-sticky-name { font-size: 16px; }
  #kfp-sticky .kfp-sticky-btn { padding: 10px 16px; font-size: 13px; }
}

/* ============================================================
   v3.4 ADDED: 右端追従 大型「今すぐ購入」ボタン
   常時表示・大型円形・脈動 + リング波紋アニメーション
   クリックでモデル選択 (#kfp-purchase) へジャンプ
============================================================ */
#kfp-floating-buy {
  position: fixed;
  right: 28px;
  bottom: 110px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 144px;
  height: 144px;
  background: linear-gradient(135deg, var(--kfp-ink) 0%, #2a2a2a 100%);
  color: #fff;
  text-decoration: none;
  border-radius: 50%;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
  font-weight: 900;
  text-align: center;
  letter-spacing: 0.1em;
  transition: opacity 0.6s cubic-bezier(0.22, 0.68, 0.16, 1),
              transform 0.6s cubic-bezier(0.22, 0.68, 0.16, 1),
              box-shadow 0.3s ease;
  border: 3px solid var(--kfp-gold);
  font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;
  /* v4.6: 初期は非表示。3 秒後に JS で .kfp-show を付与して登場 */
  opacity: 0;
  transform: scale(0.7) translateY(20px);
  pointer-events: none;
}
/* v4.6: .kfp-show で本来の状態に + 脈動アニメ開始 */
#kfp-floating-buy.kfp-show {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
  animation: kfp-fb-pulse 2.4s ease-in-out infinite;
}
#kfp-floating-buy:hover {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 22px 56px rgba(197, 160, 89, 0.6);
  background: linear-gradient(135deg, var(--kfp-gold) 0%, var(--kfp-gold-deep) 100%);
  color: var(--kfp-ink);
}
#kfp-floating-buy .kfp-fb-icon {
  font-size: 22px;
  line-height: 1;
  color: var(--kfp-gold);
  transition: color 0.3s ease;
}
#kfp-floating-buy:hover .kfp-fb-icon {
  color: var(--kfp-ink);
}
#kfp-floating-buy .kfp-fb-text {
  font-size: 18px;
  line-height: 1.3;
  font-weight: 900;
  letter-spacing: 0.15em;
  color: #fff;
}
#kfp-floating-buy:hover .kfp-fb-text {
  color: var(--kfp-ink);
}
#kfp-floating-buy .kfp-fb-sub {
  font-size: 11px;
  line-height: 1;
  color: #fff;
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-top: 4px;
  opacity: 0.95;
  transition: color 0.3s ease;
}
#kfp-floating-buy:hover .kfp-fb-sub {
  color: var(--kfp-ink);
}
@keyframes kfp-fb-pulse {
  0%, 100% {
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3),
                0 0 0 0 rgba(197, 160, 89, 0.6);
  }
  50% {
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.35),
                0 0 0 18px rgba(197, 160, 89, 0);
  }
}
@media (max-width: 768px) {
  #kfp-floating-buy {
    width: 112px;
    height: 112px;
    right: 16px;
    bottom: 96px;
  }
  #kfp-floating-buy .kfp-fb-icon { font-size: 17px; }
  #kfp-floating-buy .kfp-fb-text { font-size: 14px; }
  #kfp-floating-buy .kfp-fb-sub { font-size: 9px; }
}


/* ============================================================================
   v2.5 (2026-05-19): content-visibility: auto による画面外セクションのスキップ

   原理: 画面外にあるセクションは、ブラウザがレンダリング (style 計算・layout・paint)
   を完全にスキップする。スクロールで画面に入った瞬間に初めて描画される。

   効果:
     - 初回 FCP / LCP が劇的に改善 (上から見える数セクションだけ描画される)
     - スクロール時の描画は IntersectionObserver 不要、ブラウザ任せで最速
     - Safari は無視するだけで壊れない (Chrome / Edge / Opera で動作)

   contain-intrinsic-size の意味:
     "auto 800px" = 初期推定 800px、初回描画後は実サイズを記憶。
     これにより、スクロールバーや CLS への影響なし。

   Hero (kfp-hero) はファーストビューなので対象外。
   display:none のセクション (kfp-story / kfp-promise / kfp-concierge) も対象外。
============================================================================ */
#kfp-question,
#kfp-blind,
#kfp-piano,
#kfp-reasons,
#kfp-anatomy,
#kfp-use,
#kfp-compare,
#kfp-voices,
#kfp-faq,
#kfp-purchase,
#kfp-journey,
#kfp-final {
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}