/* ============================================
       Design Tokens  — index.html と同期 (2026-04-23)
       ============================================ */
    :root {
      /* Primary / Accent */
      --c-accent: #EC7D5F;
      --c-accent-light: #F29A7D;
      --c-accent-text: #EC7D5F;
      --c-cta-gradient: linear-gradient(135deg, #F29A7D 0%, #EC7D5F 100%);

      /* Corporate */
      --c-sunset-red: #EC7D5F;
      --c-sunset-yellow: #E8A832;
      --c-ocean-blue: #4A90B8;
      --c-ocean-light: #81CDDC;
      --c-ocean-dark: #339DC1;

      /* Neutral */
      --c-text: #222222;
      --c-text-light: #333333;
      --c-text-muted: #888;
      --c-border: #e0e0e0;
      --c-bg: #fff;
      --c-bg-cream: #FEF7E7;   /* 基準書§1: トップと統一 (旧 #FBF6F0 はズレ) */
      --c-bg-soft: #f2f6fa;
      --c-bg-gray: #f5f5f5;
      --c-cream-text: #F0EBDE;

      /* Typography */
      --ff-sans: '游ゴシック Medium', 'Yu Gothic Medium', YuGothic, '游ゴシック', 'Yu Gothic', 'Hiragino Sans', 'Noto Sans JP', sans-serif;
      --ff-serif: 'Shippori Mincho B1', 'Noto Serif JP', serif;
      --ff-serif-alt: 'Shippori Mincho B1', 'Noto Serif JP', serif;
      --ff-display: 'Cormorant Infant', 'Cormorant Garamond', serif;
      --ff-script: 'Allura', 'Dancing Script', cursive;

      /* Layout */
      --section-pad: 100px 0;
      --container-width: min(1680px, 87.5vw);   /* 基準書§7-A 流体コンテナ(左右ガター6.25vw)。旧1340px固定から統一 */
      --container-pad: 0;                          /* 87.5vw に左右ガターを内包するため内側paddingは0 */

      /* Radius */
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 16px;
      --radius-round: 50%;

      /* v3.8 レスポンシブ基準 (2026-04-23 星さん指示, JS 駆動 / index.html と同期)
         - CSS のみで (100vw - 240px) / 1680 を unitless にするのは規格上不可能
         - JS で innerWidth を読んで --content-scale に数値を毎回 set する方式
         - CSS 側は JS 未実行時の fallback (1) のみ設定 */
      --content-scale: 1;
    }

    /* ============================================
       Reset & Base
       ============================================ */
    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--ff-sans);
      color: var(--c-text);
      background: var(--c-bg);
      line-height: 1.875;       /* 基準書§5 本文 lh30px相当(16px×1.875) */
      font-size: 1rem;
      letter-spacing: 0.04em;   /* 基準書§5 本文字間 */
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
    button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
    ul, ol { list-style: none; }

    /* ============================================
       Layout & Typography utilities
       ============================================ */
    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: var(--container-pad);
    }
    .heading-lg {
      font-family: var(--ff-serif);
      font-size: clamp(1.375rem, 1.22rem + 0.65vw, 2rem);   /* 基準書§3 大見出し: SP22px→PC32px */
      font-weight: 500;
      line-height: 1.6;
      letter-spacing: 0.1em;
      color: var(--c-text);
      padding-bottom: 0.25em;
    }
    .heading-lg .accent { color: var(--c-accent); }
    .heading-sub {
      font-family: var(--ff-display);
      font-size: 26px;
      font-weight: 500;
      color: var(--c-text);
      letter-spacing: 0.01em;
      margin-top: 8px;
    }
    .vertical-label {
      font-family: var(--ff-display);
      font-size: 22px;
      font-weight: 500;
      letter-spacing: 0.1em;
      color: var(--c-text);
      writing-mode: vertical-rl;
      text-orientation: mixed;
    }
    .vertical-label.is-horizontal {
      writing-mode: horizontal-tb;
      text-align: center;
      display: block;
      margin-bottom: 8px;
    }

    /* ============================================
       Buttons
       ============================================ */
    /* トップ p-common__btn と完全一致（明朝500・14px・高さ46px・丸角5・gap16）*/
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      height: 46px;
      padding: 0 28px;
      border: 1px solid var(--c-text);
      border-radius: 5px;
      font-family: var(--ff-serif);   /* 明朝 */
      font-weight: 500;
      font-size: 0.875rem;            /* 14px */
      letter-spacing: 0.08em;
      color: var(--c-text);
      background: #fff;
      transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
    }
    .btn-outline:hover { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }
    /* 矢印はトップ p-common__btn と同じ ::after 方式（44×25 画像を contain で 10×約5.7 に。img の潰れ対策）*/
    .btn-outline::after {
      content: "";
      display: inline-block;
      flex-shrink: 0;
      width: 10px;
      height: 10px;
      background: url(/assets/images/icons/arrow_right.webp) no-repeat center / contain;
      transition: transform 0.25s ease, filter 0.25s ease;
    }
    .btn-outline:hover::after { filter: invert(1); transform: translateX(4px); }
    .btn-outline .arrow { font-size: 12px; transition: transform 0.3s; }
    .btn-outline:hover .arrow { transform: translateX(4px); }

    /* img 矢印 (index.html v3.8 と同期) — detail系ボタンで使用 */
    .btn-arrow {
      width: 10px;
      height: 10px;
      flex-shrink: 0;
      display: inline-block;
      vertical-align: middle;
      transition: transform 0.25s ease, filter 0.25s ease;
    }
    .btn-outline:hover .btn-arrow { transform: translateX(4px); filter: invert(1); }
    .btn-cta .btn-arrow,
    .form-submit .btn-arrow { filter: invert(1); }
    .btn-cta:hover .btn-arrow,
    .form-submit:hover .btn-arrow { transform: translateX(4px); }

    .btn-cta {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 16px 32px;
      background: var(--c-cta-gradient);
      color: #fff;
      font-size: 16px;
      letter-spacing: 0.05em;
      border-radius: var(--radius-sm);
      transition: opacity 0.3s;
    }
    .btn-cta:hover { opacity: 0.85; }

    /* ============================================
       1. Header  (index.html と同一)
       ============================================ */
    .header {
      position: fixed;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 100%;
      max-width: 1680px;
      z-index: 100;
      background: #fff;
      box-shadow: 0 2px 6px rgba(0,0,0,0.1);
      border-bottom-left-radius: 6px;
      border-bottom-right-radius: 6px;
    }
    @media (max-width: 1679px) {
      .header {
        max-width: none;
        left: 0;
        transform: none;
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
      }
    }
    .header-inner {
      display: flex;
      align-items: center;
      height: 100px;
      padding: 0 40px 0 10px;
      gap: 24px;
    }
    .header-logo { display: flex; align-items: center; flex-shrink: 0; }
    .header-logo-icon {
      width: 325px;
      height: 83px;
      background-image: url('../assets/images/logo/olivean-logo.webp');
      background-size: contain;
      background-repeat: no-repeat;
      background-position: left center;
    }
    .header-nav {
      display: flex;
      align-items: center;
      gap: 36px;
      margin-left: auto;
      margin-right: 16px;
    }
    .header-nav a {
      font-family: var(--ff-serif);
      font-size: 16px;
      font-weight: 500;
      color: #222;
      transition: color 0.3s;
      position: relative;
    }
    .header-nav a:hover { color: var(--c-accent); }
    .header-nav a.is-current {
      color: var(--c-accent);
    }
    .header-nav a.is-current::after {
      content: '';
      position: absolute;
      left: 0;
      right: 0;
      bottom: -8px;
      height: 2px;
      background: var(--c-accent);
    }
    .header-actions { display: flex; align-items: center; gap: 24px; }

    .header-booking-btn {
      position: relative;
      isolation: isolate;
      background: #EC7D5F;
      color: #fff;
      font-family: var(--ff-serif);
      font-size: 17px;
      font-weight: 500;
      width: 130px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 5px;
      letter-spacing: 0.08em;
      line-height: 1;
      white-space: nowrap;
      overflow: hidden;
      transition: box-shadow 0.35s ease;
    }
    .header-booking-btn::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, #EC7D5F 0%, #F6B196 100%);
      transition: opacity 0.35s ease;
      z-index: -1;
    }
    .header-booking-btn:hover::before { opacity: 0; }
    .header-booking-btn:hover { box-shadow: 0 4px 14px rgba(236, 125, 95, 0.35); }

    .header-hamburger {
      width: 40px;
      height: 40px;
      background: #222;
      border: none;
      border-radius: 4px;
      padding: 0;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
      transition: background 0.25s ease;
      font-size: 0;
    }
    .header-hamburger:hover { background: #3a3530; }
    .header-hamburger .bar { display: block; width: 20px; height: 1px; background: #fff; }

    .header-lang-wrap { position: relative; display: inline-flex; align-items: center; }
    .header-lang {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-family: var(--ff-display);
      font-size: 18px;
      font-weight: 600;
      color: #222;
      cursor: pointer;
      user-select: none;
    }
    .header-lang-icon { width: 20px; height: 20px; }
    .header-lang .chevron { width: 10px; height: 6px; margin-left: 2px; transition: transform .25s ease; }
    .header-lang-wrap[aria-expanded="true"] .chevron { transform: rotate(180deg); }
    .header-lang-menu {
      position: absolute;
      top: calc(100% + 8px);
      right: 0;
      background: #fff;
      border: 1px solid var(--c-border);
      border-radius: 6px;
      box-shadow: 0 8px 24px rgba(0,0,0,0.1);
      min-width: 140px;
      padding: 8px 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity .2s ease;
      z-index: 200;
    }
    .header-lang-wrap.is-open .header-lang-menu { opacity: 1; pointer-events: auto; }
    .header-lang-menu li a {
      display: block;
      padding: 8px 16px;
      font-size: 14px;
      color: var(--c-text);
      transition: background .2s;
    }
    .header-lang-menu li a:hover { background: var(--c-bg-cream); }

    .header-tel { text-align: right; }
    .header-tel-number {
      font-family: var(--ff-display);
      font-size: 22px;
      font-weight: 600;
      color: var(--c-text);
      letter-spacing: 0.02em;
      line-height: 1.2;
    }
    .header-tel-hours {
      font-size: 11px;
      color: var(--c-text-muted);
      margin-top: 2px;
    }

    /* Page content spacer for fixed header */
    .page-body { padding-top: 100px; }

    /* ============================================
       A. Sub-Page Hero  — 下層ページ専用バナー
       ============================================ */
    .sub-hero {
      position: relative;
      height: 480px;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .sub-hero-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      z-index: 0;
    }
    .sub-hero-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.45) 100%);
    }
    .sub-hero-content {
      padding: 0 1rem;
      position: relative;
      z-index: 1;
      text-align: center;
      color: #fff;
    }
    .sub-hero-en {
      font-family: var(--ff-display);
      font-size: clamp(1rem, 0.94rem + 0.26vw, 1.25rem);   /* 20/16 */
      font-weight: 500;
      letter-spacing: 0.2em;
      color: var(--c-cream-text);
      opacity: 0.9;
      margin-bottom: 12px;
    }
    .sub-hero-title {
      font-family: var(--ff-serif);
      font-size: clamp(1.625rem, 1.47rem + 0.65vw, 2.25rem);   /* 基準書§3 ヒーローH1: SP26px→PC36px */
      font-weight: 500;
      letter-spacing: 0.15em;
      line-height: 1.7;
      color: #fff;
    }
    .sub-hero-desc {
      margin-top: 16px;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      letter-spacing: 0.08em;
      color: var(--c-cream-text);
      opacity: 0.9;
    }

    /* Breadcrumb */
    .breadcrumb {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 20px 50px;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      color: var(--c-text-muted);
      letter-spacing: 0.05em;
    }
    .breadcrumb a:hover { color: var(--c-accent); }
    .breadcrumb-sep { margin: 0 8px; color: var(--c-border); }
    .breadcrumb .is-current { color: var(--c-text); }

    /* ============================================
       B. Page Intro
       ============================================ */
    .page-intro {
      padding: 60px 0;
      text-align: center;
      position: relative;
    }
    .page-intro .vertical-label.is-horizontal {
      font-size: 18px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 16px;
    }
    .page-intro .heading-lg { margin-bottom: 20px; }
    .page-intro-text {
      max-width: 1000px;
      margin: 0 auto;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 2;
      color: var(--c-text-light);
    }

    /* ============================================
       NEW (v62): Anchor Nav — ページ内アンカー横スクロールメニュー
       ・restaurants / onsen / about と共通の sticky 横スクロールナビ
       ・fixed header の下に sticky 配置 (top: 80px)
       ============================================ */
    /* v49: 角丸ピル → 「テキスト+下矢印」タイプ (参考: taikanso.co.jp/rooms)。
       追従なし(sticky解除) / #f2f6fa のインセット帯 (トップ p-plan__filter と同じ余白) */
    .anchor-nav {
      margin: 8px 0 0;
    }
    .anchor-nav-inner {
      max-width: calc(100vw - 120px);
      margin: 0 auto;
      background: var(--c-bg-soft);
      border-radius: 6px;
      padding: 6px 24px;
      display: flex;
      flex-wrap: wrap;            /* v49.1: 溢れたら2段(taikanso準拠) */
      justify-content: center;
      align-items: stretch;
      row-gap: 0;
    }
    .anchor-nav a {
      flex-shrink: 0;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
      padding: 16px 44px;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      letter-spacing: 0.08em;
      color: var(--c-text);
      white-space: nowrap;
      transition: color 0.3s;
    }
    .anchor-nav a:not(:last-child) { border-right: 1px solid var(--c-border); }
    .anchor-nav a::after {
      content: "";
      width: 8px;
      height: 8px;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      transform: rotate(45deg);
      transition: transform 0.3s;
    }
    .anchor-nav a:hover { color: var(--c-accent); }
    .anchor-nav a:hover::after { transform: rotate(45deg) translate(2px, 2px); }

    /* Smooth scroll offset for fixed header + sticky anchor-nav */
    .section-anchor { scroll-margin-top: 120px; }   /* v49: アンカーナビ追従解除に伴い固定ヘッダー(100px)+余白に縮小 */

    /* ============================================
       NEW (v62): Onsen-style Section Heading — アンカーリンクの飛び先用 大見出しブロック
       ・英字サブ → 装飾線 → 和文 38px の縦積み中央寄せ
       ・section-anchor + id をここに付与してアンカー先として使用
       ・命名は onsen- だが汎用流用可 (onsen → about → restaurants → rooms でも使用)
       ============================================ */
    .onsen-section-heading {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 100px 50px 0;
      text-align: center;
    }
    .onsen-section-heading-en {
      display: block;
      font-family: var(--ff-display);
      font-size: clamp(1rem, 0.97rem + 0.13vw, 1.125rem);   /* 18/16 */
      font-weight: 500;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 14px;
    }
    .onsen-section-heading-line {
      display: block;
      width: 40px;
      height: 1px;
      background: var(--c-accent);
      margin: 18px auto 24px;
    }
    .onsen-section-heading-ja {
      font-family: var(--ff-serif);
      font-size: clamp(1.5rem, 1.34rem + 0.65vw, 2.125rem);   /* v49 大見出し: heading-lgより一回り大 SP24px→PC34px */
      font-weight: 500;
      letter-spacing: 0.08em;
      line-height: 46px;
      color: var(--c-text);
    }
    /* 大見出し直後に feature-block / privilege-section / standard-rooms-section / spec-section が直接続く場合は余白を縮めて二重防止 */
    .onsen-section-heading + .feature-block,
    .onsen-section-heading + .privilege-section,
    .onsen-section-heading + .spec-section { padding-top: 40px; }

    /* ============================================
       C. Feature Block  — 画像 + テキスト (交互配置)
       ============================================ */
    .feature-block {
      padding: 80px 0;
    }
    .feature-block-inner {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: var(--container-pad);
      display: grid;
      grid-template-columns: 1.15fr 1fr;
      gap: 80px;
      align-items: center;
    }
    .feature-block.is-reversed .feature-block-inner {
      grid-template-columns: 1fr 1.15fr;
    }
    .feature-block.is-reversed .feature-block-image {
      order: 2;
    }
    .feature-block-image {
      aspect-ratio: 4 / 3;
      overflow: hidden;
      border-radius: var(--radius-sm);
      background: var(--c-bg-gray);
    }
    .feature-block-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 1.2s ease;
    }
    .feature-block-image:hover img { transform: scale(1.04); }
    .feature-block-text .vertical-label.is-horizontal {
      font-size: 14px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      text-align: left;
      margin-bottom: 12px;
    }
    .feature-block-title {
      font-family: var(--ff-serif);
      font-size: clamp(1.25rem, 1.19rem + 0.26vw, 1.5rem);   /* 基準書§3 サブ見出し: SP20px→PC24px */
      font-weight: 500;
      line-height: 1.6;
      letter-spacing: 0.08em;
      margin-bottom: 24px;
    }
    .feature-block-body {
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;       /* 基準書§5 本文 */
      letter-spacing: 0.04em;
      color: var(--c-text-light);
      margin-bottom: 32px;
    }

    /* ============================================
       D. Detail Grid  — カード一覧 (客室・プラン等)
       ============================================ */
    /* v49: クリームのインセット角丸ボックス化 (width=100vw-120px, 上0/下60px margin) */
    .detail-grid-section {
      width: calc(100vw - 120px);
      margin: 0 auto 0;
      padding: 80px clamp(20px, 3.125vw, 60px) 40px;
      background: #fff;            /* cream→白 (カードは強シャドウで浮かせる) */
      border-radius: 6px;
    }
    /* ボックス内は full 幅 (var(--container-width) の 87.5vw だとボックスを超えるため) */
    .detail-grid-section .detail-grid-head,
    .detail-grid-section .detail-grid { max-width: 100%; }

    /* ============================================
       Phase2 本文整形: 日本語を文節境界で自動改行(語中割れ防止・PC/SP共通)
       ※配色は完成基準のため変更なし(特典=cream箱 / スタンダード=soft帯)
       ============================================ */
    .sub-hero-desc, .page-intro-text, .feature-block-body, .detail-card-desc,
    .privilege-section-lead, .spec-note, .room-subsection-lead {
      word-break: auto-phrase;
    }
    .detail-grid-head {
      max-width: var(--container-width);
      margin: 0 auto 60px;
      padding: var(--container-pad);
      text-align: center;
    }
    .detail-grid-head .vertical-label.is-horizontal {
      font-size: 16px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 12px;
    }
    .detail-grid {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: var(--container-pad);
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 50px 40px;
    }
    .detail-card {
      background: #fff;
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: 0 3px 24px 0 rgba(0, 0, 0, 0.08);
      transition: transform .4s ease, box-shadow .4s ease;
    }
    .detail-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
    }
    .detail-card-image {
      aspect-ratio: 3 / 2;
      overflow: hidden;
      background: var(--c-bg-gray);
    }
    .detail-card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 1s ease;
    }
    .detail-card:hover .detail-card-image img { transform: scale(1.06); }
    .detail-card-body {
      padding: 28px 28px 32px;
    }
    .detail-card-tag {
      display: inline-block;
      font-family: var(--ff-display);
      font-size: 0.875rem;   /* 12→14: 基準書§4 小ラベル */
      letter-spacing: 0.15em;
      color: var(--c-accent);
      padding-bottom: 2px;
      border-bottom: 1px solid var(--c-accent);
      margin-bottom: 12px;
    }
    .detail-card-title {
      font-family: var(--ff-serif);
      font-size: clamp(1.125rem, 1.06rem + 0.26vw, 1.375rem);   /* 22/18 */
      font-weight: 500;
      letter-spacing: 0.06em;
      line-height: 1.5;
      margin-bottom: 14px;
    }
    .detail-card-desc {
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;       /* 基準書§5 本文 */
      letter-spacing: 0.04em;
      color: var(--c-text-light);
      margin-bottom: 20px;
    }
    .detail-card-specs {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 16px;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      color: var(--c-text-muted);
      padding-top: 16px;
      border-top: 1px solid var(--c-border);
    }
    .detail-card-specs li::before { content: '・'; margin-right: 2px; }
    /* Detail Grid 3列バリエーション */
    .detail-grid.is-cols-3 { grid-template-columns: repeat(3, 1fr); gap: 40px 32px; }
    /* v49: グループ向け2枚を「3列カードと同サイズ」のまま中央寄せ (SP=1列は @media 側が優先) */
    @media (min-width: 1025px) {
      .detail-grid.is-cols-3.is-centered {
        grid-template-columns: repeat(2, calc((100% - 64px) / 3));
        justify-content: center;
      }
    }

    /* ============================================
       D'. Privileges  — エグゼクティブ特典
       ============================================ */
    .privilege-section {
      width: calc(100vw - 120px);      /* 全幅でなく左右余白(restaurants「おすすめポイント」=detail-grid-section と同じ箱型) */
      margin: 0 auto 60px;
      padding: 72px clamp(20px, 3.125vw, 60px) 64px;
      background: var(--c-bg-cream);   /* 見出し〜4カードまで cream で塗る */
      border-radius: 6px;
    }
    /* 箱内は full 幅 (container-width 87.5vw だと箱を超えるため) */
    .privilege-section .privilege-section-head,
    .privilege-section .privilege-grid { max-width: 100%; }
    .privilege-section-head {
      max-width: var(--container-width);
      margin: 0 auto 56px;
      padding: var(--container-pad);
      text-align: center;
    }
    .privilege-section-head .vertical-label.is-horizontal {
      font-size: 16px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 12px;
    }
    .privilege-section-lead {
      font-size: 1rem;   /* PC 16px 固定 (本文最小16pxルール / hoshi 2026-06-20) */
      line-height: 2;
      color: var(--c-text-light);
      margin-top: 18px;
    }
    .privilege-grid {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: var(--container-pad);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .privilege-card {
      background: #fff;                /* カード背景は白 */
      border-radius: var(--radius-md);
      overflow: hidden;
      text-align: center;
      box-shadow: 0 3px 24px 0 rgba(0, 0, 0, 0.08);
    }
    /* リンク先が無いため hover のシャドウ/浮き上がりは無し */
    .privilege-card-image { width: 100%; aspect-ratio: 3 / 2; overflow: hidden; }
    .privilege-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .privilege-card-body { padding: 26px 22px 30px; }
    /* 番号: タイトル行頭にインライン (ピンク・少し大きめ) — コンパクト化 */
    .privilege-card-num {
      font-family: var(--ff-display);
      font-size: 1.3em;            /* タイトルより少し大きく */
      color: var(--c-accent);      /* ピンク */
      letter-spacing: 0.04em;
      margin-right: 0.32em;
    }
    .privilege-card-title {
      font-family: var(--ff-serif);
      font-size: clamp(1.125rem, 1.09rem + 0.13vw, 1.25rem);   /* 20/18 */
      font-weight: 500;
      letter-spacing: 0.05em;
      line-height: 1.6;
      margin-bottom: 14px;
      color: var(--c-text);
    }
    .privilege-card-desc {
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;
      letter-spacing: 0.04em;
      color: var(--c-text-light);
      text-align: left;
    }
    /* 特典スライダーの数字ナビ (SP のみ表示・PCは display:none) */
    .privilege-nav { display: none; justify-content: center; gap: 10px; margin-top: 24px; }
    .privilege-nav-num {
      width: 32px; height: 32px;
      border-radius: 50%;
      border: 1px solid var(--c-border);
      background: #fff;
      color: var(--c-text-light);
      font-family: var(--ff-display);
      font-size: 13px;
      line-height: 1;
      cursor: pointer;
      transition: background .25s ease, color .25s ease, border-color .25s ease;
    }
    .privilege-nav-num.is-active { background: var(--c-accent); color: #fff; border-color: var(--c-accent); }

    /* ============================================
       D''. Standard Rooms — スタンダードルーム（夕陽/朝日/グループ）
       ============================================ */
    .standard-rooms-section {
      padding: 60px 0 100px;
      position: relative;
      z-index: 0;
    }
    /* v51: グレー面を「頭から」ではなく最初のカードの中央から下へ敷く (JSが --gray-start を算出)。
       グレー面積を削減＋カードがグレーの縁をまたぐデザイン。--gray-start 未設定時は 50% で代替 */
    .standard-rooms-section::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: var(--gray-start, 50%);
      bottom: 0;
      background: var(--c-bg-soft);
      z-index: -1;
    }
    /* v49: 大見出し(onsen-section-heading)をこのセクション内に内包→上余白を相殺し下に間隔 */
    .standard-rooms-section > .onsen-section-heading { padding-top: 0; margin-bottom: 48px; }
    .standard-rooms-head {
      max-width: var(--container-width);
      margin: 0 auto 80px;
      padding: var(--container-pad);
      text-align: center;
    }
    .standard-rooms-head .vertical-label.is-horizontal {
      font-size: 16px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 12px;
    }
    .room-subsection { margin-bottom: 80px; }
    .room-subsection:last-child { margin-bottom: 0; }
    .room-subsection-head {
      max-width: var(--container-width);
      margin: 0 auto 40px;
      padding: var(--container-pad);
      text-align: center;
    }
    .room-subsection-head .vertical-label.is-horizontal {
      font-size: 13px;
      letter-spacing: 0.32em;
      color: var(--c-accent);
      margin-bottom: 10px;
    }
    .room-subsection-title {
      font-family: var(--ff-serif);
      font-size: clamp(1.25rem, 1.19rem + 0.26vw, 1.5rem);   /* 基準書§3 サブ見出し: SP20px→PC24px */
      font-weight: 500;
      letter-spacing: 0.06em;
      line-height: 1.5;
      margin-bottom: 14px;
      color: var(--c-text);
    }
    .room-subsection-lead {
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;
      letter-spacing: 0.04em;
      color: var(--c-text-light);
    }
    /* Standard Rooms 用の grid は既存 .detail-grid を流用、白背景カードがクリームの上に映える */

    /* ============================================
       E. Spec Table  — 共通仕様/施設情報
       ============================================ */
    .spec-section {
      padding: 100px 0;
    }
    .spec-section-inner {
      max-width: 900px;
      margin: 0 auto;
      padding: var(--container-pad);
    }
    .spec-section-head { text-align: center; margin-bottom: 48px; }
    .spec-section-head .vertical-label.is-horizontal {
      font-size: 16px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 12px;
    }
    .spec-table {
      width: 100%;
      border-collapse: collapse;
    }
    .spec-table tr {
      border-bottom: 1px solid var(--c-border);
    }
    .spec-table tr:first-child { border-top: 1px solid var(--c-border); }
    .spec-table th, .spec-table td {
      padding: 20px 24px;
      text-align: left;
      vertical-align: top;
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;
      letter-spacing: 0.04em;
    }
    .spec-table th {
      width: 220px;
      font-family: var(--ff-serif);
      font-weight: 500;
      color: var(--c-text);
      background: var(--c-bg-cream);
    }
    .spec-table td { color: var(--c-text-light); }
    .spec-note {
      max-width: var(--container-width);
      margin: 28px auto 0;
      padding: var(--container-pad);
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      line-height: 1.875;
      letter-spacing: 0.04em;
      color: var(--c-text-muted);
    }
    .spec-note strong { color: var(--c-text-light); font-weight: 500; }

    /* ============================================
       F. Related Links  — 関連ページ誘導
       ============================================ */
    .related-section {
      padding: 60px 0 100px;
      background: #fff;
      border: 1px solid #ddd;
    }
    .related-section-head {
      max-width: var(--container-width);
      margin: 0 auto 48px;
      padding: var(--container-pad);
      text-align: center;
    }
    .related-section-head .vertical-label.is-horizontal {
      font-size: 16px;
      letter-spacing: 0.3em;
      color: var(--c-accent);
      margin-bottom: 12px;
    }
    .related-grid {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: var(--container-pad);
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .related-card {
      position: relative;
      display: block;
      aspect-ratio: 4 / 3;
      overflow: hidden;
      border-radius: var(--radius-sm);
      background: var(--c-bg-gray);
    }
    .related-card-image {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      transition: transform 1s ease;
    }
    .related-card:hover .related-card-image { transform: scale(1.06); }
    .related-card::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.1) 60%, rgba(0,0,0,0) 100%);
    }
    .related-card-label {
      position: absolute;
      left: 24px;
      bottom: 22px;
      z-index: 1;
      color: #fff;
    }
    .related-card-label .en {
      display: block;
      font-family: var(--ff-display);
      font-size: 1.875rem;   /* 30px (hoshi指示: 英字を大きく・PC/SP共通) */
      letter-spacing: 0.25em;
      color: var(--c-cream-text);
      margin-bottom: 4px;
    }
    .related-card-label .ja {
      font-family: var(--ff-serif);
      font-size: clamp(0.875rem, 0.45rem + 0.88vw, 1rem);   /* 16/14 */
      letter-spacing: 0.08em;
    }

    /* ============================================
       Footer  (index.html と同一)
       ============================================ */
    .footer {
      padding: 50px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      max-width: 1400px;
      margin: 0 auto;
    }
    .footer-harmony {
      grid-column: 1 / -1;
      text-align: center;
      font-size: 14px;
      color: var(--c-text-light);
      padding-bottom: 30px;
      border-bottom: 1px solid var(--c-border);
      margin-bottom: 30px;
    }
    .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
    .footer-logo-icon {
      width: 72px; height: 48px;
      background-image: url('../assets/images/logo/olivean-logo.webp');
      background-size: contain;
      background-repeat: no-repeat;
      background-position: center;
    }
    .footer-logo-text {
      font-family: var(--ff-serif);
      font-size: 13px;
      letter-spacing: 0.15em;
      color: var(--c-accent);
    }
    .footer-logo-text small { font-size: 10px; display: block; color: var(--c-text-light); }
    .footer-name { font-size: 14px; margin-bottom: 12px; }
    .footer-address { font-size: 13px; color: var(--c-text-light); line-height: 1.8; }
    .footer-holdings {
      margin-top: 30px;
      padding: 16px 20px;
      border: 1px solid var(--c-border);
      display: inline-block;
      font-size: 13px;
    }
    .footer-holdings-name { font-size: 11px; color: var(--c-text-muted); margin-top: 4px; }
    .footer-sns { display: flex; gap: 16px; margin-bottom: 20px; }
    .footer-sns a { font-size: 24px; transition: color 0.3s; }
    .footer-sns a:hover { color: var(--c-accent); }
    .footer-links { font-size: 13px; color: var(--c-text-light); margin-bottom: 30px; }
    .footer-links a:hover { color: var(--c-accent); }
    .footer-booking-label { font-family: var(--ff-serif); font-size: 18px; margin-bottom: 16px; }
    .footer-booking-btns { display: flex; gap: 12px; margin-bottom: 20px; }
    .footer-booking-btns .btn-cta { font-size: 16px; padding: 12px 24px; }
    .footer-booking-btns .btn-outline { font-size: 16px; padding: 12px 24px; }
    .footer-sub-links {
      font-size: 13px;
      color: var(--c-text-light);
      margin-bottom: 20px;
      display: flex;
      gap: 20px;
    }
    .footer-sub-links a { text-decoration: underline; }
    .footer-sub-links a:hover { color: var(--c-accent); }
    .footer-bottom-btns { display: flex; gap: 12px; }
    .footer-bottom-btns .btn-outline { font-size: 16px; padding: 10px 20px; }

    .copyright {
      background: var(--c-cta-gradient);
      color: #fff;
      text-align: center;
      padding: 20px;
      font-family: var(--ff-display);
      font-size: 16px;
      letter-spacing: 0.05em;
    }

    /* ============================================
       Side Fix Buttons  (index.html と同一)
       ============================================ */
    .side-fix {
      position: fixed;
      right: 0;
      bottom: 100px;
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .side-fix-btn {
      position: relative;
      width: 80px;
      height: 80px;
      border-radius: 4px 0 0 4px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      color: #fff;
      font-family: 'Inter', var(--ff-sans);
      font-size: 13px;
      font-weight: 400;
      line-height: 15px;
      text-align: center;
      text-decoration: none;
      transition: transform .25s ease, filter .25s ease;
      box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    }
    .side-fix-btn:hover { transform: translateX(-4px); filter: brightness(1.08); }
    .side-fix-btn.is-plan   { background: linear-gradient(135deg, #3B69AC 0%, #5486D1 100%); }
    .side-fix-btn.is-search { background: linear-gradient(135deg, #2A88B2 0%, #48A0C8 100%); }
    .side-fix-btn.is-faq    { background: linear-gradient(135deg, #40AB67 0%, #63C286 100%); }
    .side-fix-btn-icon {
      width: 28px; height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: #fff;
    }
    .side-fix-btn-icon svg { width: 100%; height: 100%; display: block; stroke: #fff; }
    .side-fix-btn-text { white-space: nowrap; }

    /* ============================================
       Scroll Reveal Animations
       ============================================ */
    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition:
        opacity 0.55s cubic-bezier(0.215, 0.61, 0.355, 1),
        transform 0.55s cubic-bezier(0.215, 0.61, 0.355, 1);
      will-change: opacity, transform;
    }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    .reveal-fade {
      opacity: 0;
      transition: opacity 0.7s cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    .reveal-fade.is-visible { opacity: 1; }
    [data-reveal="stagger"] > .reveal-item {
      opacity: 0;
      transform: translateY(16px);
      transition:
        opacity 0.55s cubic-bezier(0.215, 0.61, 0.355, 1),
        transform 0.55s cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    [data-reveal="stagger"].is-visible > .reveal-item { opacity: 1; transform: translateY(0); }
    [data-reveal="stagger"].is-visible > .reveal-item:nth-child(1) { transition-delay: 0ms; }
    [data-reveal="stagger"].is-visible > .reveal-item:nth-child(2) { transition-delay: 70ms; }
    [data-reveal="stagger"].is-visible > .reveal-item:nth-child(3) { transition-delay: 140ms; }
    [data-reveal="stagger"].is-visible > .reveal-item:nth-child(4) { transition-delay: 210ms; }
    @media (prefers-reduced-motion: reduce) {
      .reveal, .reveal-fade, [data-reveal="stagger"] > .reveal-item {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
      }
    }

    /* ============================================
       Responsive (SP)
       ============================================ */
    @media (max-width: 1024px) {
      .feature-block-inner { grid-template-columns: minmax(0, 1fr); gap: 32px; }
      .feature-block.is-reversed .feature-block-image { order: 0; }
      .detail-grid { grid-template-columns: 1fr; gap: 32px; }
      .detail-grid.is-cols-3 { grid-template-columns: 1fr; gap: 32px; }
      .privilege-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .related-grid { grid-template-columns: 1fr; gap: 24px; }
    }
    @media (max-width: 767px) {
      .header-inner { height: 72px; padding: 0 16px; gap: 12px; }
      .header-logo-icon { width: 220px; height: 56px; }
      .header-nav, .header-tel, .header-lang-wrap { display: none; }
      .page-body { padding-top: 72px; }
      .sub-hero { height: 320px; }
      .breadcrumb { padding: 16px 20px; }
      .page-intro { padding: 40px 0 30px; }
      /* SP: PC見た目(縦積み+下矢印+区切り線)を維持して横スクロール。safe center=少数項目は中央/溢れたら左詰めスクロール */
      .anchor-nav-inner { max-width: calc(100vw - 24px); padding: 6px 12px; flex-wrap: nowrap; overflow-x: auto; justify-content: safe center; -webkit-overflow-scrolling: touch; scrollbar-width: thin; }
      .anchor-nav a { padding: 4px 24px 8px; }
      .section-anchor { scroll-margin-top: 100px; }
      .onsen-section-heading { padding: 50px 0 0; }
      .onsen-section-heading-en { letter-spacing: 0.25em; margin-bottom: 8px; }
      .onsen-section-heading-line { margin: 0 auto 6px; }
      .onsen-section-heading-ja { letter-spacing: 0.06em; }
      .feature-block { padding: 48px 0; }
      .feature-block-inner { padding: 0 20px; }
      .spec-section, .related-section { padding: 40px 0; }
      .detail-grid-section { width: calc(100vw - 24px); padding: 30px 16px; margin: 0 auto; }
      .privilege-section, .standard-rooms-section { padding: 30px 0; }
      .privilege-grid { grid-template-columns: 1fr; gap: 16px; padding: 0 20px; }
      .standard-rooms-head { margin-bottom: 48px; padding: 0 20px; }
      .room-subsection { margin-bottom: 56px; }
      .room-subsection-head { padding: 0; margin-bottom: 28px; }
      .room-subsection-title { font-size: 22px; }
      .detail-grid, .spec-section-inner, .related-grid, .detail-grid-head { padding: 0 20px; }
      .footer { grid-template-columns: 1fr; padding: 40px 20px; gap: 32px; }
      .footer-booking-btns, .footer-bottom-btns { flex-wrap: wrap; }
      .side-fix { bottom: 80px; gap: 6px; }
      .side-fix-btn { width: 64px; height: 64px; font-size: 11px; line-height: 13px; }
      .side-fix-btn-icon { width: 22px; height: 22px; }
      .spec-table th, .spec-table td { display: block; width: auto; padding: 12px 16px; }
      .spec-table th { border-bottom: 1px solid var(--c-border); }

      /* --- SP 可読性微調整 (2026-06-16): 本文 14→15px 底上げ + 見出しの折返しを均す --- */
      .page-intro-text,
      .feature-block-body,
      .detail-card-desc,
      .detail-card-specs,
      .privilege-section-lead,
      .privilege-card-desc,
      .room-subsection-lead,
      .spec-table th,
      .spec-table td,
      .spec-note {
        font-size: 0.9375rem;   /* 15px */
      }
      .sub-hero-title,
      .heading-lg {
        text-wrap: balance;
      }
      .u-pcbr { display: none; }   /* PC専用改行: SPでは自然折返し(本文はauto-phrase) */

      /* --- SP: コンテンツ左右余白を詰めて本文幅を広く (余白が広く中身がぎゅっと対策) --- */
      /* カード本文の左右paddingを縮小 (28px→18px・全カード共通で本文拡幅) */
      .detail-card-body { padding-left: 18px; padding-right: 18px; }
      /* エグゼクティブ枠は section 自身に inset があるため、内側 grid/head の重複 padding を解除 */
      .detail-grid-section { padding-left: 16px; padding-right: 16px; }
      .detail-grid-section .detail-grid,
      .detail-grid-section .detail-grid-head { padding-left: 0; padding-right: 0; }
      /* スタンダード客室: grid は流体コンテナ(87.5vw)のガターで左右余白が出るため、重複 padding を解除 */
      .room-subsection .detail-grid { padding-left: 0; padding-right: 0; }
      /* エグゼクティブフロア紹介・特典・関連客室も同じく重複 padding を解除して本文幅を確保 */
      .feature-block-inner { padding-left: 0; padding-right: 0; }
      .privilege-grid { padding-left: 0; padding-right: 0; }
      .related-grid { padding-left: 0; padding-right: 0; }

      /* --- SP: 特典01〜04を横スライダー化 + 数字ナビ --- */
      .privilege-section { width: calc(100vw - 24px); padding: 30px 0; margin-bottom: 0; }
      .privilege-section-head { padding: 0 20px; margin-bottom: 30px; }
      .privilege-grid {
        display: flex;
        grid-template-columns: none;
        gap: 14px;
        padding: 0 18px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
      }
      .privilege-grid::-webkit-scrollbar { display: none; }
      .privilege-card { flex: 0 0 80%; scroll-snap-align: center; }
      .privilege-nav { display: flex; }

      /* --- SP 余白の詰め調整 (hoshi 2026-06-20) --- */
      .feature-block-body { margin-bottom: 0; }
      .detail-grid-head { margin-bottom: 30px; }
      .spec-section-head { margin-bottom: 20px; }
      .related-section-head { margin: 0 auto 32px; }
      .related-grid { margin-bottom: 0; }
    }

/* ============================================
   SP: Scroll Reveal 高速化(フリックでも待たせない)
   ============================================ */
@media (max-width: 767px) {
  .reveal {
    transform: translateY(16px);
    transition-duration: 0.55s, 0.55s;
  }
  .reveal-fade { transition-duration: 0.6s; }
  [data-reveal="stagger"] > .reveal-item {
    transform: translateY(16px);
    transition-duration: 0.5s, 0.5s;
  }
  [data-reveal="stagger"].is-visible > .reveal-item:nth-child(2) { transition-delay: 70ms; }
  [data-reveal="stagger"].is-visible > .reveal-item:nth-child(3) { transition-delay: 140ms; }
  [data-reveal="stagger"].is-visible > .reveal-item:nth-child(4) { transition-delay: 210ms; }
}