/* ============================================================
       CSS 変数（トップページと共通）
    ============================================================ */
    :root {
      --color-bg:          #fafafa;
      --color-surface:     #ffffff;
      --color-surface-alt: #f4f6f8;
      --color-coral:       #ff7f6e;
      --color-coral-light: #fff0ee;
      --color-mint:        #4ecdc4;
      --color-mint-light:  #e8faf9;
      --color-text:        #2d3142;
      --color-text-muted:  #6b7280;
      --color-border:      #e5e7eb;
      --font-en:  'Plus Jakarta Sans', sans-serif;
      --font-ja:  'Noto Sans JP', sans-serif;
      --container: 1000px;
      --container-lg: 1400px;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
      --shadow-md: 0 4px 20px rgba(0,0,0,.08);
      --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
      --transition: .3s cubic-bezier(.4,0,.2,1);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: var(--font-ja); background: var(--color-bg); color: var(--color-text); line-height: 1.7; overflow-x: hidden; }
    img  { display: block; max-width: 100%; height: auto; }
    a    { color: inherit; text-decoration: none; }
    ul   { list-style: none; }

    .container    { width: min(var(--container),    100% - 48px); margin-inline: auto; }
    .container-lg { width: min(var(--container-lg), 100% - 48px); margin-inline: auto; }

    /* ============================================================
       ナビゲーション
    ============================================================ */
    .nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      background: rgba(255,255,255,.9);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }
    .nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
    .nav__logo { font-family: var(--font-en); font-weight: 800; font-size: 1.25rem; color: var(--color-text); }
    .nav__logo span { color: var(--color-coral); }
    .nav__back {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: .875rem; font-weight: 600; color: var(--color-text-muted);
      transition: color var(--transition), gap var(--transition);
    }
    .nav__back:hover { color: var(--color-coral); gap: 12px; }

    /* ============================================================
       プロジェクトヒーロー（FV）
       ─ 背景画像 + グラデーションオーバーレイ
         左：テキスト情報  右：モックアップ大表示
    ============================================================ */

    /* セクション全体：背景画像を包む相対ポジション */
    .project-hero {
      position: relative;
      padding-top: 64px;        /* nav 分のオフセット */
      min-height: 100svh;       /* 画面いっぱいの高さ */
      display: flex;
      align-items: center;
      overflow: hidden;
    }

    /* 背景画像レイヤー */
    .project-hero__bg {
      position: absolute;
      inset: 0;
      z-index: 0;
    }
    .project-hero__bg img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: center top;
      filter: blur(2px) brightness(.5) saturate(.75);
      transform: scale(1.05);   /* blur のエッジ隠し */
    }

    /* 暗幕グラデーション（左が濃く、右が薄い） */
    .project-hero__overlay {
      position: absolute;
      inset: 0;
      z-index: 1;
      background: linear-gradient(
        110deg,
        rgba(18, 20, 38, .88) 0%,
        rgba(18, 20, 38, .60) 50%,
        rgba(18, 20, 38, .18) 100%
      );
    }

    /* コンテンツ行（テキスト ＋ モックアップ） */
    .project-hero__inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1.6fr;   /* テキスト : モックアップ ≒ 2:3 */
      gap: 56px;
      align-items: center;
      padding: 80px 0 72px;
    }

    /* ── テキストブロック ── */
    .project-hero__info { color: #fff; }

    .project-hero__tag {
      display: inline-block;
      background: var(--color-coral);
      color: #fff;
      font-size: .75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 99px;
      letter-spacing: .05em;
      margin-bottom: 20px;
    }
    .project-hero__title {
      font-family: var(--font-en);
      font-size: clamp(1.8rem, 3.2vw, 2.8rem);
      font-weight: 800;
      line-height: 1.2;
      color: #fff;
      margin-bottom: 20px;
    }
    .project-hero__subtitle {
      font-size: .95rem;
      color: rgba(255,255,255,.75);
      margin-bottom: 32px;
      line-height: 1.8;
    }

    /* メタ情報 */
    .meta-list { display: grid; flex-wrap: wrap; gap: 20px; }
    .meta-item { display: flex; flex-direction: column; gap: 2px; }
    .meta-item__label {
      font-size: .7rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: .1em; color: var(--color-coral); font-family: var(--font-en);
    }
    .meta-item__value { font-size: .9rem; font-weight: 600; color: rgba(255,255,255,.9); }
    .hero-link { color: var(--color-coral); text-decoration: underline; }

    /* ── モックアップ画像（大） ── */
    .project-hero__mockup {
      border-radius: var(--radius-lg);
      box-shadow:
        0 32px 96px rgba(0,0,0,.65),
        0 0 0 1px rgba(255,255,255,.1);
      overflow: hidden;
      aspect-ratio: 16/10;
      transform: perspective(1400px) rotateY(-5deg) rotateX(2deg);
      transition: transform .6s ease;
    }
    .project-hero__mockup:hover {
      transform: perspective(1400px) rotateY(0deg) rotateX(0deg) scale(1.015);
    }
    .project-hero__mockup img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: top center;
    }

    /* ============================================================
       本文エリア
    ============================================================ */
    .project-body { padding: 80px 0; }

    .section-block { margin-bottom: 64px; }
    .section-block:last-child { margin-bottom: 0; }

    .block-label {
      display: inline-flex; align-items: center; gap: 10px;
      font-family: var(--font-en); font-size: .8rem; font-weight: 700;
      letter-spacing: .12em; text-transform: uppercase;
      color: var(--color-coral); margin-bottom: 16px;
    }
    .block-label::before {
      content: ''; display: block; width: 24px; height: 2px;
      background: var(--color-coral); border-radius: 99px;
    }
    .block-title {
      font-family: var(--font-en); font-size: clamp(1.4rem, 3vw, 1.9rem);
      font-weight: 800; color: var(--color-text); margin-bottom: 20px; line-height: 1.3;
    }
    .block-text {
      font-size: .95rem; color: var(--color-text-muted); line-height: 1.85;
      max-width: 720px;
    }
    .block-text + .block-text { margin-top: 16px; }

    /* 2カラムレイアウト */
    .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .two-col--reverse { direction: rtl; }
    .two-col--reverse > * { direction: ltr; }

    /* 画像ブロック（スライダー非使用時のフォールバック） */
    .img-block { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-md); }
    .img-block img { width: 100%; height: auto; object-fit: cover; }
    .img-block--tall img { aspect-ratio: 3/4; }
    .img-block--wide img { aspect-ratio: 16/9; }

    .img-caption { font-size: .78rem; color: var(--color-text-muted); margin-top: 8px; text-align: center; }

    /* ============================================================
       画像スライダー（img-slider）
    ============================================================ */
    .img-slider {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      background: #000;
    }

    /* スライドトラック：横並びをはみ出し非表示で実現 */
    .img-slider__track {
      display: flex;
      transition: transform .5s cubic-bezier(.4,0,.2,1);
      will-change: transform;
    }

    .img-slider__slide {
      flex: 0 0 100%;
      aspect-ratio: 3/4;
      overflow: hidden;
    }
    .img-slider__slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: top center;
      transition: transform .5s ease;
      padding: 0.5em 0;
    }
    .img-slider__slide.is-active img {
      transform: scale(1.03);
    }

    /* 前後ボタン */
    .img-slider__btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      z-index: 10;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: none;
      background: rgba(255,255,255,.85);
      color: var(--color-text);
      font-size: .9rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-sm);
      transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    }
    .img-slider__btn:hover {
      background: var(--color-coral);
      color: #fff;
      transform: translateY(-50%) scale(1.1);
      box-shadow: 0 4px 16px rgba(255,127,110,.4);
    }
    .img-slider__btn--prev { left: 12px; }
    .img-slider__btn--next { right: 12px; }

    /* ドットインジケーター */
    .img-slider__dots {
      position: absolute;
      bottom: 12px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 6px;
      z-index: 10;
    }
    .img-slider__dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      border: none;
      background: rgba(255,255,255,.45);
      cursor: pointer;
      padding: 0;
      transition: background var(--transition), transform var(--transition);
    }
    .img-slider__dot.is-active {
      background: #fff;
      transform: scale(1.35);
    }

    /* 課題・解決策カード */
    .challenge-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 8px; }
    .challenge-card {
      background: var(--color-surface); border: 1px solid var(--color-border);
      border-radius: var(--radius-md); padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .challenge-card__icon { font-size: 1.5rem; margin-bottom: 12px; }
    .challenge-card__title { font-weight: 700; font-size: .95rem; color: var(--color-text); margin-bottom: 8px; }
    .challenge-card__text { font-size: .85rem; color: var(--color-text-muted); line-height: 1.7; }

    /* 成果指標 */
    .result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px; }
    .result-card {
      background: linear-gradient(135deg, var(--color-coral-light), var(--color-mint-light));
      border-radius: var(--radius-md); padding: 28px 20px; text-align: center;
    }
    .result-card__num { font-family: var(--font-en); font-size: 2.2rem; font-weight: 800; color: var(--color-coral); line-height: 1; }
    .result-card__label { font-size: .8rem; color: var(--color-text-muted); margin-top: 6px; }

    /* ツールタグ */
    .tool-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
    .tool-chip {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 6px 16px; border-radius: 99px;
      background: var(--color-surface); border: 1px solid var(--color-border);
      font-size: .82rem; font-weight: 600; color: var(--color-text);
      box-shadow: var(--shadow-sm);
    }
    .tool-chip i { color: var(--color-coral); }

    /* スクリーンショットギャラリー */
    .screenshot-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 8px; }
    .screenshot-grid--3 { grid-template-columns: repeat(3, 1fr); }

    /* CTA */
    .project-cta {
      background: var(--color-text);
      border-radius: var(--radius-lg);
      padding: 48px;
      display: flex; align-items: center; justify-content: space-between; gap: 32px;
      flex-wrap: wrap;
    }
    .project-cta__text h3 { font-family: var(--font-en); font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 6px; }
    .project-cta__text p  { font-size: .88rem; color: rgba(255,255,255,.6); }
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 14px 28px; border-radius: 99px; font-weight: 700; font-size: .9rem;
      cursor: pointer; transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    }
    .btn:hover { transform: translateY(-2px); }
    .btn--primary { background: var(--color-coral); color: #fff; box-shadow: 0 4px 16px rgba(255,127,110,.35); }
    .btn--primary:hover { background: #e86d5c; box-shadow: 0 8px 24px rgba(255,127,110,.4); }
    .btn--ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.2); }
    .btn--ghost:hover { background: rgba(255,255,255,.2); }

    /* ============================================================
       前後ナビゲーション
    ============================================================ */
    .work-nav {
      border-top: 1px solid var(--color-border);
      padding: 40px 0;
      display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    }
    .work-nav__item {
      display: flex; flex-direction: column; gap: 4px;
      padding: 20px 24px; border-radius: var(--radius-md);
      border: 1px solid var(--color-border); background: var(--color-surface);
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    .work-nav__item:hover { border-color: var(--color-coral); box-shadow: var(--shadow-md); transform: translateY(-2px); }
    .work-nav__item--next { text-align: right; }
    .work-nav__dir { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--color-coral); font-family: var(--font-en); }
    .work-nav__name { font-size: .9rem; font-weight: 700; color: var(--color-text); }
    .work-nav__sub  { font-size: .78rem; color: var(--color-text-muted); }

    /* ============================================================
       フッター
    ============================================================ */
    .footer { background: var(--color-text); color: rgba(255,255,255,.7); padding: 40px 0; }
    .footer__inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
    .footer__logo { font-family: var(--font-en); font-size: 1.2rem; font-weight: 800; color: #fff; }
    .footer__logo span { color: var(--color-coral); }
    .footer__copy { font-size: .78rem; color: rgba(255,255,255,.4); }
    .footer__social { display: flex; gap: 10px; }
    .social-link {
      width: 38px; height: 38px; border-radius: 50%;
      background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center;
      font-size: .9rem; color: rgba(255,255,255,.7);
      transition: background var(--transition), color var(--transition), transform var(--transition);
    }
    .social-link:hover { background: var(--color-coral); color: #fff; transform: translateY(-2px); }

    /* ============================================================
       制作プロセス
    ============================================================ */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
      margin-top: 32px;
    }
    .process-card {
      display: flex;
      gap: 20px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .process-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--color-coral);
    }
    .process-card__number {
      font-family: var(--font-en);
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--color-coral);
      line-height: 1;
      opacity: 0.8;
    }
    .process-card__title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 8px;
    }
    .process-card__text {
      font-size: 0.85rem;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* ============================================================
       制作実績一覧へ戻るボタン
    ============================================================ */
    .back-to-list {
      display: flex;
      justify-content: center;
      margin-top: 56px;
      padding-bottom: 24px;
    }
    .btn--outline {
      background: #fff;
      color: var(--color-text);
      border: 1px solid var(--color-border);
      padding: 16px 40px;
      font-size: 0.95rem;
    }
    .btn--outline:hover {
      background: var(--color-surface-alt);
      border-color: var(--color-coral);
      color: var(--color-coral);
      box-shadow: var(--shadow-sm);
    }
    .btn--outline i { margin-right: 8px; }

    /* ============================================================
       フェードイン
    ============================================================ */
    .fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
    .fade-in.visible { opacity: 1; transform: translateY(0); }

    /* ============================================================
       レスポンシブ
    ============================================================ */

    /* タブレット：FV を縦積みに */
    @media (max-width: 900px) {
      .project-hero__inner {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 56px 0 48px;
      }
      .project-hero__mockup {
        transform: none;
        aspect-ratio: 16/9;
      }
      .project-hero__mockup:hover { transform: none; }
    }

    @media (max-width: 768px) {
      .two-col            { grid-template-columns: 1fr; gap: 32px; }
      .two-col--reverse   { direction: ltr; }
      .challenge-grid     { grid-template-columns: 1fr; }
      .result-grid        { grid-template-columns: repeat(2, 1fr); }
      .screenshot-grid    { grid-template-columns: 1fr; }
      .screenshot-grid--3 { grid-template-columns: repeat(2, 1fr); }
      .project-cta        { flex-direction: column; align-items: flex-start; padding: 32px; }
      .work-nav           { grid-template-columns: 1fr; }
      .footer__inner      { flex-direction: column; align-items: flex-start; }
      .process-grid       { grid-template-columns: 1fr; gap: 16px; }
      .process-card       { padding: 20px; }
      .back-to-list       { margin-top: 40px; }
      .btn--outline       { width: 100%; justify-content: center; }
    }

    @media (max-width: 480px) {
      .result-grid        { grid-template-columns: 1fr; }
      .screenshot-grid--3 { grid-template-columns: 1fr; }
    }

    /* ============================================================
       担当領域カード（My Role）
    ============================================================ */
    .role-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 32px;
    }
    .role-card {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .role-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--color-coral);
    }
    .role-card__icon {
      width: 52px; height: 52px; border-radius: 50%;
      background: var(--color-coral-light);
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 16px; font-size: 1.25rem; color: var(--color-coral);
      transition: background var(--transition), color var(--transition);
    }
    .role-card:hover .role-card__icon { background: var(--color-coral); color: #fff; }
    .role-card__title { font-size: 1rem; font-weight: 700; color: var(--color-text); margin-bottom: 10px; }
    .role-card__text  { font-size: .82rem; color: var(--color-text-muted); line-height: 1.7; text-align: left; }

    /* ============================================================
       課題と改善（Challenge & Solution）
    ============================================================ */
    .cs-list { display: flex; flex-direction: column; gap: 20px; margin-top: 32px; }
    .cs-item {
      display: grid;
      grid-template-columns: 1fr 40px 1fr;
      align-items: stretch;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .cs-item__before,
    .cs-item__after { padding: 24px 28px; }
    .cs-item__before {
      background: #fff5f4; border: 1px solid #ffd5d0;
      border-right: none; border-radius: var(--radius-md) 0 0 var(--radius-md);
    }
    .cs-item__after {
      background: #f0fdf9; border: 1px solid #b6f0e4;
      border-left: none; border-radius: 0 var(--radius-md) var(--radius-md) 0;
    }
    .cs-item__before p,
    .cs-item__after p {
      font-size: .88rem; color: var(--color-text-muted); line-height: 1.75; margin-top: 10px;
    }
    .cs-item__arrow {
      display: flex; align-items: center; justify-content: center;
      background: var(--color-surface-alt);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
      color: var(--color-coral); font-size: 1rem;
    }
    .cs-badge {
      display: inline-flex; align-items: center; gap: 6px;
      font-size: .72rem; font-weight: 700; letter-spacing: .06em;
      text-transform: uppercase; padding: 3px 10px; border-radius: 99px;
      font-family: var(--font-en);
    }
    .cs-badge--before { background: #ffe0dc; color: #c0392b; }
    .cs-badge--after  { background: #c8f7ec; color: #0e7a5a; }

    /* ============================================================
       成果指標カード（KPI / Results）
    ============================================================ */
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 32px;
    }
    .kpi-card {
      position: relative;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 20px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .kpi-card::before {
      content: '';
      position: absolute; top: 0; left: 0; right: 0; height: 4px;
      background: linear-gradient(90deg, var(--color-coral), var(--color-mint));
    }
    .kpi-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
    .kpi-card__icon  { font-size: 1.6rem; color: var(--color-coral); margin-bottom: 12px; }
    .kpi-card__num   {
      font-family: var(--font-en); font-size: 1.7rem; font-weight: 800;
      color: var(--color-text); line-height: 1.1; margin-bottom: 6px;
    }
    .kpi-unit        { font-size: 1rem; font-weight: 700; color: var(--color-coral); }
    .kpi-card__label {
      font-size: .78rem; font-weight: 700; color: var(--color-text-muted);
      margin-bottom: 12px; letter-spacing: .04em;
    }
    .kpi-card__desc  { font-size: .8rem; color: var(--color-text-muted); line-height: 1.65; text-align: left; }

    /* ============================================================
       追加セクション レスポンシブ
    ============================================================ */
    @media (max-width: 900px) {
      .role-grid { grid-template-columns: repeat(2, 1fr); }
      .kpi-grid  { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .cs-item { grid-template-columns: 1fr; }
      .cs-item__before {
        border-right: 1px solid #ffd5d0; border-bottom: none;
        border-radius: var(--radius-md) var(--radius-md) 0 0;
      }
      .cs-item__after {
        border-left: 1px solid #b6f0e4; border-top: none;
        border-radius: 0 0 var(--radius-md) var(--radius-md);
      }
      .cs-item__arrow {
        padding: 10px 0; height: 40px;
        border-left: 1px solid var(--color-border);
        border-right: 1px solid var(--color-border);
        border-top: none; border-bottom: none;
      }
      .cs-item__arrow i { transform: rotate(90deg); display: block; }
    }
    @media (max-width: 600px) {
      .role-grid { grid-template-columns: 1fr; }
      .kpi-grid  { grid-template-columns: 1fr; }
    }

    /* ============================================================
       LP縦長スライダー（lp-slider）
       ─ 1カラム全幅・縦長キャプチャを大きく見せる専用スライダー
    ============================================================ */

    /* 外枠ラッパー */
    .lp-slider-wrap {
      position: relative;
      max-width: 680px;
      margin: 0 auto;
    }

    /* カウンター（右上） */
    .lp-slider__counter {
      text-align: right;
      font-family: var(--font-en);
      font-size: .85rem;
      font-weight: 700;
      color: var(--color-text-muted);
      margin-bottom: 12px;
      letter-spacing: .06em;
    }
    .lp-slider__counter span:first-child {
      font-size: 1.1rem;
      color: var(--color-coral);
    }

    /* スライダー本体 */
    .lp-slider {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow:
        0 20px 60px rgba(0,0,0,.14),
        0 0 0 1px var(--color-border);
      background: var(--color-surface-alt);
    }

    /* トラック（横並びをはみ出し非表示） */
    .lp-slider__track {
      display: flex;
      transition: transform .55s cubic-bezier(.4,0,.2,1);
      will-change: transform;
    }

    /* 各スライド：縦長（3:4）固定 */
 .lp-slider__slide {
  flex: 0 0 100%;
  height: auto;
}

.lp-slider__slide img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

    
    .lp-slider__slide.is-active img {
      transform: scale(1.02);
    }

    /* 前後ボタン */
    .lp-slider__btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      z-index: 10;
      width: 58px;
      height: 58px;
      border-radius: 50%;
      border: none;
      background: rgba(255,255,255,.92);
      color: var(--color-text);
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0,0,0,.12);
      transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    }
    .lp-slider__btn:hover {
      background: var(--color-coral);
      color: #fff;
      transform: translateY(-50%) scale(1.1);
      box-shadow: 0 6px 20px rgba(255,127,110,.45);
    }
    .lp-slider__btn--prev { left: -24px; }
    .lp-slider__btn--next { right: -24px; }

    /* サムネイルナビ */
    .lp-slider__thumbs {
      display: flex;
      gap: 10px;
      justify-content: center;
      flex-wrap: nowrap;
      overflow-x: auto;
      padding: 16px 4px 4px;
      scrollbar-width: none;
    }
    .lp-slider__thumbs::-webkit-scrollbar { display: none; }

    .lp-slider__thumb {
      flex: 0 0 64px;
      height: 88px;
      border-radius: var(--radius-sm);
      border: 2px solid transparent;
      background-size: cover;
      background-position: top center;
      cursor: pointer;
      opacity: .55;
      transition: opacity var(--transition), border-color var(--transition), transform var(--transition);
    }
    .lp-slider__thumb:hover {
      opacity: .85;
      transform: translateY(-2px);
    }
    .lp-slider__thumb.is-active {
      border-color: var(--color-coral);
      opacity: 1;
      transform: translateY(-3px);
      box-shadow: 0 4px 12px rgba(255,127,110,.35);
    }

    /* ============================================================
       LP縦長スライダー レスポンシブ
    ============================================================ */
    @media (max-width: 768px) {
      .lp-slider-wrap { max-width: 100%; }
      .lp-slider__btn--prev { left: 8px; }
      .lp-slider__btn--next { right: 8px; }
      .lp-slider__btn { width: 40px; height: 40px; font-size: .85rem; }
      .lp-slider__thumb { flex: 0 0 52px; height: 72px; }
    }