/* ========================================
   overlay.css
   Detail Overlay Layout v2 (clean rebuild)
   ======================================== */

#detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  overflow: auto;
  background: var(--detail-overlay-surface, #ffffff);
  box-sizing: border-box;

  /* ========================================
     1) OVERLAY FRAME
     - 全体の表示領域 / 外側余白
     ======================================== */
  --detail-stack-top-gap: 0px;
  --detail-stack-bottom-gap: 0px;
  --detail-max-width: 1360px;
  --detail-side-pad: 40px;

/* ========================================
   2) DETAIL MEDIA / RELATED / MAIN VISUALS
   - main画像、related、media周辺ノブ
   - wide / square / portrait / sp を含む
   ======================================== */
  /* Main image size knobs: layout × device */
  --main-max-width-landscape-pc: 100%;
  --main-max-height-landscape-pc: 92%;

  --main-max-width-landscape-sp: 100%;
  --main-max-height-landscape-sp: 60dvh;
  /* SP portrait viewport + true landscape layout:
   reduce main max-height to create vertical breathing room */
  --sp-portrait-landscape-top-gap: 100px;
  --sp-portrait-landscape-bottom-gap: 100px;

  --main-max-width-portrait-pc: 90%;
  --main-max-height-portrait-pc: calc(96dvh - var(--header-h, 50px));

  --main-max-width-portrait-sp: 100%;
  --main-max-height-portrait-sp: 60dvh;
  /* SP portrait viewport + portrait layout forced on source-landscape image:
   add visual top/bottom margin without shrinking main image */
  --sp-portrait-source-landscape-margin-top: 18px;
  --sp-portrait-source-landscape-margin-bottom: 18px;

  --portrait-main-shadow-1-x: var(--tall-main-shadow-1-x, 0px);
  --portrait-main-shadow-1-y: var(--tall-main-shadow-1-y, 18px);
  --portrait-main-shadow-1-blur: var(--tall-main-shadow-1-blur, 36px);
  --portrait-main-shadow-1-color: var(--tall-main-shadow-1-color, rgba(0, 0, 0, 0.10));
  --portrait-main-shadow-2-x: var(--tall-main-shadow-2-x, 0px);
  --portrait-main-shadow-2-y: var(--tall-main-shadow-2-y, 4px);
  --portrait-main-shadow-2-blur: var(--tall-main-shadow-2-blur, 10px);
  --portrait-main-shadow-2-color: var(--tall-main-shadow-2-color, rgba(0, 0, 0, 0.22));
  --portrait-main-border-width: var(--tall-main-border-width, 0px);
  --portrait-main-border-color: var(--tall-main-border-color, rgba(0, 0, 0, 0.12));
  --portrait-main-radius: var(--tall-main-radius, 0px);

  --main-max-width-square-pc: 90%;
  --main-max-height-square-pc: 100%;

  --main-max-width-square-sp: 100%;
  --main-max-height-square-sp: 60dvh;

  /* ========================================
     2.6) SEQUENCE THUMB VISUALS
     - 連番サムネイル専用
     - Related と同じ項目構成、値は独立
     ======================================== */
  --detail-seq-thumb-size: 48px;
  --detail-seq-thumb-radius: 2px;
  --detail-seq-thumb-border-width: 1px;
  --detail-seq-thumb-border-color: rgba(0, 0, 0, 0.10);
  --detail-seq-thumb-shadow: none;
  --detail-seq-thumb-bg: rgba(0, 0, 0, 0.03);
  --detail-seq-thumb-filter: brightness(1) saturate(1) contrast(1) blur(0.4px);
  --detail-seq-thumb-overlay-opacity: 0.12;

/* ========================================
   2.7) RELATED THUMB VISUALS
   - Related Works サムネイル画像そのものの見た目
   ======================================== */
--detail-related-thumb-size: 48px;
--detail-related-thumb-radius: 2px;
--detail-related-thumb-border-width: 1px;
--detail-related-thumb-border-color: rgba(0, 0, 0, 0.10);
--detail-related-thumb-shadow: none;
--detail-related-thumb-bg: rgba(0, 0, 0, 0.03);
--detail-related-thumb-filter: brightness(1) saturate(1) contrast(1) blur(0.4px);
--detail-related-thumb-opacity: 0.8;

/* ========================================
   2.8) PORTRAIT RELATED LAYOUT / TYPOGRAPHY
   - portrait 時の Related Works 全体の余白・タイトル・補助UI
   ======================================== */
--portrait-related-margin-top: 44px;
--portrait-related-title-margin-bottom: 8px;
--portrait-related-title-size: 10px;
--portrait-related-title-line-height: 1.2;
--portrait-related-title-letter-spacing: 0.01em;
--portrait-related-title-opacity: 0.56;
--portrait-related-title-weight: 400;
--portrait-related-grid-gap: 14px;
--portrait-related-utility-margin-top: 10px;
--portrait-tags-shift-x: -3px;

--portrait-back-margin-top: 0px;
--portrait-back-font-size: 12px;
--portrait-back-line-height: 1.2;
--portrait-back-letter-spacing: 0.01em;
--portrait-back-opacity: 0.56;
--portrait-back-color: rgba(0, 0, 0, 0.72);
--portrait-back-char-stagger: 0.06s;
--portrait-back-char-duration: 0.42s;
--portrait-back-char-offset-x: 0.38em;
--portrait-back-arrow-bounce-duration: 0.38s;
--portrait-back-arrow-bounce-distance: 0.22em;

/* ========================================
   2.9) MAIN IMAGE VISUALS
   - main 画像の shadow / border / radius
   - wide / square と portrait を分離
   ======================================== */

/* Wide / Square main image */
--detail-main-shadow-1-x: 0px;
--detail-main-shadow-1-y: 0px;
--detail-main-shadow-1-blur: 0px;
--detail-main-shadow-1-color: rgba(0, 0, 0, 0.10);
--detail-main-shadow-2-x: 0px;
--detail-main-shadow-2-y: 0px;
--detail-main-shadow-2-blur: 0px;
--detail-main-shadow-2-color: rgba(0, 0, 0, 0.22);
--detail-main-border-width: 0px;
--detail-main-border-color: rgba(0, 0, 0, 0);
--detail-main-radius: 0px;

/* Portrait main image */
--tall-main-shadow-1-x: 0px;
--tall-main-shadow-1-y: 0px;
--tall-main-shadow-1-blur: 0px;
--tall-main-shadow-1-color: rgba(0, 0, 0, 0.10);
--tall-main-shadow-2-x: 0px;
--tall-main-shadow-2-y: 0px;
--tall-main-shadow-2-blur: 0px;
--tall-main-shadow-2-color: rgba(0, 0, 0, 0.22);
--tall-main-border-width: 0px;
--tall-main-border-color: rgba(0, 0, 0, 0);
--tall-main-radius: 0px;

/* ========================================
   2.10) DETAIL LAYOUT OFFSETS / SPACING
   - main 周辺のオフセット
   - square / tablet の spacing
   ======================================== */

/* Works Detail text-block Y offset knobs */
--detail-portrait-info-offset-y: 38px;
--tall-thumb-offset: 18px;
--detail-square-info-offset-y: 38px;

/* Works Detail square thumbs knobs */
--detail-square-thumb-offset-x: 18px;

/* Works Detail square related spacing knob */
--detail-square-related-margin-top: 48px;

/* iPad Works spacing knobs */
--tablet-top-gap: 16px;
--tablet-main-thumbs-gap: 16px;
--tablet-thumbs-text-gap: 28px;
--tablet-bottom-gap: 24px;

/* ========================================
   2.11) SP PORTRAIT MEDIA
   - SP の main / sequence / related まわり
   ======================================== */
--sp-main-seq-gap: 10px;
--sp-seq-gap: 8px;
--sp-seq-shadow-x: 0px;
--sp-seq-shadow-y: 0px;
--sp-seq-shadow-blur: 0px;
--sp-seq-shadow-color: rgba(0, 0, 0, 0.15);

--sp-media-stack-gap: 6px;
--sp-mobile-stack-max-width: 320px;
--sp-text-inline-pad: 16px;

--sp-related-title-margin-bottom: 10px;
--sp-related-thumb-size: 64px;
--sp-related-grid-gap: 18px;
--sp-related-bottom-gap: 30px;

  /* ========================================
     2.12) DETAIL TYPOGRAPHY KNOBS
     - main title / subtitle / meta / body / tags
     - 調整はまずここを見る
     - 実適用は下の各 layout block
     ======================================== */

  /* ---------- SP : main title ---------- */
  --sp-title-size: 16px;
  --sp-title-line-height: 1.02;
  --sp-title-letter-spacing: -0.018em;

  /* ---------- SP : subtitle ---------- */
  --sp-subtitle-size: 12px;
  --sp-subtitle-margin-top: 6px;
  --sp-subtitle-line-height: 1.2;
  --sp-subtitle-letter-spacing: 0;

  /* ---------- SP : meta ---------- */
  --sp-meta-size: 10px;
  --sp-meta-margin-top: 8px;
  --sp-meta-line-height: 1.28;
  --sp-meta-label-gap: 4px;
  --sp-meta-row-gap: 4px;
  
  /* ---------- SP : body ---------- */
  --sp-body-size: 14px;
  --sp-body-margin-top: 11px;
  --sp-body-line-height: 1.58;

  /* ---------- SP : tags ---------- */
  --sp-tags-margin-top: 14px;
  --sp-tags-gap: 4px;
  --sp-tags-shift-x: 0px;

  /* ========================================
     3) THUMBNAILS
     - gap / motion など sequence layout 寄りのノブ
     ======================================== */
  --detail-nav-gap: 18px;
  --detail-thumb-gap: 17px;

  /* Thumbnail motion knobs */
  --detail-thumb-transition-duration: 160ms;
  --detail-thumb-transition-ease: ease;
  --detail-thumb-hover-scale: 1.04;
  --detail-thumb-hover-opacity: 1;

  /* Portrait thumbnails */
  --tall-thumb-gap: 14px;
  --tall-thumbs-margin-top: 6px;

  /* ========================================
     4) WIDE / SQUARE LAYOUT
     ======================================== */
  --wide-main-info-gap: 0px;
  --wide-info-nav-gap: 0px;
  --landscape-a-group-bottom-gap: 16px;

  /* ========================================
     5) PORTRAIT LAYOUT
     ======================================== */
  --tall-pc-right-width: 260px;
  --tall-pc-column-gap: 32px;
  --tall-mobile-stack-gap: 32px;
  --tall-related-margin-top: 10px;
  --tall-utility-margin-top: 10px;

  /* ---------- PC / Tablet : main title ---------- */
  --tall-title-size: 18px;
  --tall-title-line-height: 1.02;
  --tall-title-weight: 620;
  --tall-title-letter-spacing: -0.015em;

  /* ---------- PC / Tablet : subtitle ---------- */
  --tall-subtitle-size: 14px;
  --tall-subtitle-margin-top: 8px;
  --tall-subtitle-line-height: 1.2;
  --tall-subtitle-weight: 520;
  --tall-subtitle-opacity: 0.88;
  --tall-subtitle-letter-spacing: -0.01em;

  /* ---------- PC / Tablet : meta ---------- */
  --tall-meta-size: 10px;
  --tall-meta-margin-top: 10px;
  --tall-meta-line-height: 1.28;
  --tall-meta-opacity: 0.72;
  --tall-meta-letter-spacing: 0.01em;
  --tall-meta-label-gap: 4px;
  --tall-meta-row-gap: 4px;

  /* Tags */
  --tall-tags-margin-top: 16px;
  --tall-tags-gap: 4px;

  /* Body */
  --tall-body-size: 13px;
  --tall-body-margin-top: 11px;
  --tall-body-line-height: 1.58;
  --tall-body-color: rgba(0, 0, 0, 0.76);

  /* ========================================
     7) CANONICAL WORKS DETAIL KNOBS
     ======================================== */

  /* pc landscape */
  --wd-pc-landscape-main-max-width: var(--main-max-width-landscape-pc);
  --wd-pc-landscape-main-max-height: var(--main-max-height-landscape-pc);
  --wd-pc-landscape-main-radius: var(--detail-main-radius);
  --wd-pc-landscape-main-border-width: var(--detail-main-border-width);
  --wd-pc-landscape-main-border-color: var(--detail-main-border-color);
  --wd-pc-landscape-main-shadow-1-x: var(--detail-main-shadow-1-x);
  --wd-pc-landscape-main-shadow-1-y: var(--detail-main-shadow-1-y);
  --wd-pc-landscape-main-shadow-1-blur: var(--detail-main-shadow-1-blur);
  --wd-pc-landscape-main-shadow-1-color: var(--detail-main-shadow-1-color);
  --wd-pc-landscape-main-shadow-2-x: var(--detail-main-shadow-2-x);
  --wd-pc-landscape-main-shadow-2-y: var(--detail-main-shadow-2-y);
  --wd-pc-landscape-main-shadow-2-blur: var(--detail-main-shadow-2-blur);
  --wd-pc-landscape-main-shadow-2-color: var(--detail-main-shadow-2-color);
  --wd-pc-landscape-thumbs-offset-x: var(--detail-nav-gap);
  --wd-pc-landscape-thumbs-gap: var(--detail-thumb-gap);
  --wd-pc-landscape-thumbs-size: var(--detail-seq-thumb-size);
  --wd-pc-landscape-thumbs-thumb-filter: var(--detail-seq-thumb-filter);
  --wd-pc-landscape-thumbs-overlay-opacity: var(--detail-seq-thumb-overlay-opacity);
  --wd-pc-landscape-related-gap-top: var(--tall-related-margin-top);
  --wd-pc-landscape-related-thumb-filter: var(--detail-related-thumb-filter);

  /* pc portrait */
  --wd-pc-portrait-main-max-width: var(--main-max-width-portrait-pc);
  --wd-pc-portrait-main-max-height: var(--main-max-height-portrait-pc);
  --wd-pc-portrait-main-radius: var(--tall-main-radius);
  --wd-pc-portrait-main-border-width: var(--tall-main-border-width);
  --wd-pc-portrait-main-border-color: var(--tall-main-border-color);
  --wd-pc-portrait-main-shadow-1-x: var(--tall-main-shadow-1-x);
  --wd-pc-portrait-main-shadow-1-y: var(--tall-main-shadow-1-y);
  --wd-pc-portrait-main-shadow-1-blur: var(--tall-main-shadow-1-blur);
  --wd-pc-portrait-main-shadow-1-color: var(--tall-main-shadow-1-color);
  --wd-pc-portrait-main-shadow-2-x: var(--tall-main-shadow-2-x);
  --wd-pc-portrait-main-shadow-2-y: var(--tall-main-shadow-2-y);
  --wd-pc-portrait-main-shadow-2-blur: var(--tall-main-shadow-2-blur);
  --wd-pc-portrait-main-shadow-2-color: var(--tall-main-shadow-2-color);
  --wd-pc-portrait-thumbs-offset-x: var(--tall-thumb-offset);
  --wd-pc-portrait-thumbs-gap-top: var(--tall-thumbs-margin-top);
  --wd-pc-portrait-thumbs-gap: var(--tall-thumb-gap);
  --wd-pc-portrait-thumbs-size: var(--detail-seq-thumb-size);
  --wd-pc-portrait-thumbs-thumb-filter: var(--detail-seq-thumb-filter);
  --wd-pc-portrait-thumbs-overlay-opacity: var(--detail-seq-thumb-overlay-opacity);
  --wd-pc-portrait-text-offset-y: var(--detail-portrait-info-offset-y);
  --wd-pc-portrait-title-gap-top: 0px;
  --wd-pc-portrait-subtitle-gap-top: var(--tall-subtitle-margin-top);
  --wd-pc-portrait-meta-gap-top: var(--tall-meta-margin-top);
  --wd-pc-portrait-body-gap-top: var(--tall-body-margin-top);
  --wd-pc-portrait-tags-gap-top: var(--tall-tags-margin-top);
  --wd-pc-portrait-related-gap-top: var(--portrait-related-margin-top);
  --wd-pc-portrait-related-title-gap-bottom: var(--portrait-related-title-margin-bottom);
  --wd-pc-portrait-related-title-size: var(--portrait-related-title-size);
  --wd-pc-portrait-related-title-line-height: var(--portrait-related-title-line-height);
  --wd-pc-portrait-related-title-letter-spacing: var(--portrait-related-title-letter-spacing);
  --wd-pc-portrait-related-title-opacity: var(--portrait-related-title-opacity);
  --wd-pc-portrait-related-title-weight: var(--portrait-related-title-weight);
  --wd-pc-portrait-related-grid-gap: var(--portrait-related-grid-gap);
  --wd-pc-portrait-related-thumb-size: var(--detail-related-thumb-size);
  --wd-pc-portrait-related-thumb-filter: var(--detail-related-thumb-filter);
  --wd-pc-portrait-back-gap-top: var(--portrait-back-margin-top);

  /* pc square */
  --wd-pc-square-main-max-width: var(--main-max-width-square-pc);
  --wd-pc-square-main-max-height: var(--main-max-height-square-pc);
  --wd-pc-square-main-radius: var(--detail-main-radius);
  --wd-pc-square-main-border-width: var(--detail-main-border-width);
  --wd-pc-square-main-border-color: var(--detail-main-border-color);
  --wd-pc-square-main-shadow-1-x: var(--detail-main-shadow-1-x);
  --wd-pc-square-main-shadow-1-y: var(--detail-main-shadow-1-y);
  --wd-pc-square-main-shadow-1-blur: var(--detail-main-shadow-1-blur);
  --wd-pc-square-main-shadow-1-color: var(--detail-main-shadow-1-color);
  --wd-pc-square-main-shadow-2-x: var(--detail-main-shadow-2-x);
  --wd-pc-square-main-shadow-2-y: var(--detail-main-shadow-2-y);
  --wd-pc-square-main-shadow-2-blur: var(--detail-main-shadow-2-blur);
  --wd-pc-square-main-shadow-2-color: var(--detail-main-shadow-2-color);
  --wd-pc-square-thumbs-offset-x: var(--detail-square-thumb-offset-x);
  --wd-pc-square-thumbs-gap: var(--detail-thumb-gap);
  --wd-pc-square-thumbs-size: var(--detail-seq-thumb-size);
  --wd-pc-square-thumbs-thumb-filter: var(--detail-seq-thumb-filter);
  --wd-pc-square-thumbs-overlay-opacity: var(--detail-seq-thumb-overlay-opacity);
  --wd-pc-square-text-offset-y: var(--detail-square-info-offset-y);
  --wd-pc-square-title-gap-top: 0px;
  --wd-pc-square-subtitle-gap-top: var(--tall-subtitle-margin-top);
  --wd-pc-square-meta-gap-top: var(--tall-meta-margin-top);
  --wd-pc-square-body-gap-top: var(--tall-body-margin-top);
  --wd-pc-square-tags-gap-top: var(--tall-tags-margin-top);
  --wd-pc-square-related-gap-top: var(--detail-square-related-margin-top);
  --wd-pc-square-related-title-gap-bottom: var(--portrait-related-title-margin-bottom);
  --wd-pc-square-related-title-size: var(--portrait-related-title-size);
  --wd-pc-square-related-title-line-height: var(--portrait-related-title-line-height);
  --wd-pc-square-related-title-letter-spacing: var(--portrait-related-title-letter-spacing);
  --wd-pc-square-related-title-opacity: var(--portrait-related-title-opacity);
  --wd-pc-square-related-title-weight: var(--portrait-related-title-weight);
  --wd-pc-square-related-grid-gap: var(--portrait-related-grid-gap);
  --wd-pc-square-related-thumb-size: var(--detail-related-thumb-size);
  --wd-pc-square-related-thumb-filter: var(--detail-related-thumb-filter);

  /* tablet landscape */
  /* reserved for phase 2 selector migration */

  /* tablet portrait */
  --wd-tablet-portrait-media-gap-top: var(--tablet-top-gap);
  --wd-tablet-portrait-main-gap-top: 0px;
  --wd-tablet-portrait-thumbs-gap-top: var(--tablet-main-thumbs-gap);
  --wd-tablet-portrait-text-gap-top: var(--tablet-thumbs-text-gap);
  --wd-tablet-portrait-bottom-gap: var(--tablet-bottom-gap);
  --wd-tablet-portrait-thumbs-gap: var(--tall-thumb-gap);
  --wd-tablet-portrait-thumbs-size: var(--detail-seq-thumb-size);

  /* tablet square */
  /* reserved for phase 2 selector migration */

  /* sp landscape */
  --wd-sp-landscape-main-max-width: var(--main-max-width-landscape-sp);
  --wd-sp-landscape-main-max-height: var(--main-max-height-landscape-sp);

  /* sp portrait */
  --wd-sp-portrait-main-max-width: var(--main-max-width-portrait-sp);
  --wd-sp-portrait-main-max-height: var(--main-max-height-portrait-sp);
  --wd-sp-portrait-main-seq-gap-top: var(--sp-main-seq-gap);
  --wd-sp-portrait-seq-gap: var(--sp-seq-gap);
  --wd-sp-portrait-title-gap-top: 0px;
  --wd-sp-portrait-subtitle-gap-top: var(--sp-subtitle-margin-top);
  --wd-sp-portrait-meta-gap-top: var(--sp-meta-margin-top);
  --wd-sp-portrait-body-gap-top: var(--sp-body-margin-top);
  --wd-sp-portrait-tags-gap-top: var(--sp-tags-margin-top);
  --wd-sp-portrait-related-gap-top: var(--portrait-related-margin-top);

  /* sp square */
  --wd-sp-square-main-max-width: var(--main-max-width-square-sp);
  --wd-sp-square-main-max-height: var(--main-max-height-square-sp);
}

/* ========================================
   Overlay shell visibility / page masking
   ======================================== */
#detail-overlay.hidden {
  display: none !important;
}

body:not(.detail-open) #detail-overlay {
  display: none;
}

body.detail-open #detail-overlay {
  display: block;
}

body.detail-open #gallery-container,
body.detail-open #bio-page,
body.detail-open #news-page,
body.detail-open #news-detail,
body.detail-open #site-copyright {
  visibility: hidden;
}

#detail-overlay > .detail-page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: transparent;
  background-image: none;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: 0;
  transition: opacity 180ms ease;

  /* 背景画像コントロールノブ */
  --detail-bg-opacity-image: 0.3;
  --detail-bg-opacity-pattern: 0.3;
  --detail-bg-blur-image: 3px;
  --detail-bg-blur-pattern: 5px;
}

#detail-overlay > .detail-page-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: none;
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: 0;
  filter: none;
}

#detail-overlay > .detail-page-bg.has-bg {
  opacity: 1;
}

#detail-overlay > .detail-page-bg.bg-image::before {
  background-image: var(--detail-bg-image);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  opacity: var(--detail-bg-opacity-image, 0.45);
  filter: blur(var(--detail-bg-blur-image, 0px));
}

#detail-overlay > .detail-page-bg.bg-pattern::before {
  background-image: var(--detail-bg-image);
  background-repeat: repeat;
  background-position: center top;
  background-size: auto;
  opacity: var(--detail-bg-opacity-pattern, 0.45);
  filter: blur(var(--detail-bg-blur-pattern, 0px));
}

#detail-overlay > .detail-page-bg.bg-color::before {
  background-image: none;
  opacity: 0;
  filter: none;
}

/* ========================================
   Overlay container / shared stage frame
   ======================================== */
#detail-overlay .detail-container {
  position: relative;
  z-index: 1;
  width: min(var(--detail-max-width), calc(100% - (var(--detail-side-pad) * 2)));
  margin: 0 auto;
  padding-top: 0;
  box-sizing: border-box;
}

@media screen and (min-width: 600px) {
  #detail-overlay .detail-container {
    padding-top: var(--header-h, 50px);
  }
}

#detail-overlay #detail-content {
  height: calc(
    100dvh
    - var(--header-h, 60px)
    - var(--detail-stack-top-gap, 0px)
    - var(--detail-stack-bottom-gap, 0px)
  );
  margin: 0;
  box-sizing: border-box;
}

#detail-overlay .detail-stage {
  position: relative;
  height: 100%;
}

#detail-overlay .detail-layout {
  min-width: 0;
  min-height: 0;
}

/* ========================================
   Shared media / block basics
   ======================================== */

#detail-overlay .detail-main-area {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

#detail-overlay .detail-left {
  min-width: 0;
  min-height: 0;
  overflow: visible;
}

#detail-overlay .detail-main {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  margin: 0 auto;
  object-fit: contain;
  object-position: top center;
  box-sizing: border-box;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  position: relative;
  z-index: 1;
  opacity: 1;
  transition: opacity 160ms ease;
}

#detail-overlay .detail-stage.detail-main-ready .detail-main,
#detail-overlay .detail-layout.is-tablet-portrait .detail-top-fitbox.detail-main-ready .detail-main {
  display: block;
  opacity: 1;
}

#detail-overlay #detail-content .detail-main-thumbs-wrap,
#detail-overlay #detail-content .detail-top-thumbs {
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease;
}

#detail-overlay #detail-content.detail-thumbs-visible .detail-main-thumbs-wrap,
#detail-overlay #detail-content.detail-thumbs-visible .detail-top-thumbs {
  opacity: 1;
  pointer-events: auto;
}

#detail-overlay .detail-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--tall-tags-gap, 4px);
  min-width: 0;
}

#detail-overlay .detail-tags-wrap > * {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 18px;
}

#detail-overlay .detail-tag,
#detail-overlay .detail-tags-wrap a,
#detail-overlay .detail-tags-wrap span,
#detail-overlay .detail-tags-wrap button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  min-height: 18px;
  font-size: 10px;
  line-height: 1;
  letter-spacing: -0.01em;
  color: rgba(0, 0, 0, 0.72);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid rgba(0, 0, 0, 0.10);
  border-radius: 999px;
  background: transparent;
  box-sizing: border-box;
}

#detail-overlay .detail-meta-stack .detail-year.detail-tag,
#detail-overlay .detail-meta-stack .detail-client.detail-tag {
  font-size: inherit;
  line-height: inherit;
  letter-spacing: inherit;
}

#detail-overlay .detail-tags-wrap a:hover {
  opacity: 1;
}

/* detail-ui-adaptive experiment: temporarily disabled during overlay cleanup */
/* ========================================
   Detail thumbs: shared base
   ======================================== */
#detail-overlay .detail-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--detail-thumb-gap, 14px);
  align-items: flex-start;
}

#detail-overlay .detail-thumb-frame {
  position: relative;
  display: block;
  width: var(--detail-seq-thumb-size, 56px);
  height: var(--detail-seq-thumb-size, 56px);
  border-radius: var(--detail-seq-thumb-radius, 2px);
  border: var(--detail-seq-thumb-border-width, 1px) solid var(--detail-seq-thumb-border-color, rgba(0, 0, 0, 0.10));
  box-shadow: var(--detail-seq-thumb-shadow, none);
  background: var(--detail-seq-thumb-bg, rgba(0, 0, 0, 0.03));
  box-sizing: border-box;
  overflow: hidden;
}

#detail-overlay .detail-thumb-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  pointer-events: none;
}

#detail-overlay .detail-thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: var(--detail-seq-thumb-filter, none);
  box-sizing: border-box;
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  opacity: var(--detail-thumb-hover-opacity, 1);
  transform: scale(1);
  transform-origin: center;
  transition:
    transform var(--detail-thumb-transition-duration, 160ms) var(--detail-thumb-transition-ease, ease),
    opacity var(--detail-thumb-transition-duration, 160ms) var(--detail-thumb-transition-ease, ease),
    border-color var(--detail-thumb-transition-duration, 160ms) var(--detail-thumb-transition-ease, ease),
    box-shadow var(--detail-thumb-transition-duration, 160ms) var(--detail-thumb-transition-ease, ease);
}

#detail-overlay .detail-thumb:hover {
  transform: scale(var(--detail-thumb-hover-scale, 1));
}

#detail-overlay .detail-thumb.is-active {
  opacity: 1;
}

#detail-overlay .detail-mobile-image-stack {
  display: none;
}

/* ========================================
   Related works: portrait variant
   ======================================== */
#detail-overlay .detail-layout.is-portrait .related-works {
  width: 100%;
}

/* ========================================
   Variant layout: Wide / Square
   ======================================== */
#detail-overlay .detail-layout.is-landscape {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: stretch;
  height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-square {
  display: grid;
  grid-template-columns: var(--tall-pc-right-width, 260px) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto;
  column-gap: var(--tall-pc-column-gap, 32px);
  align-items: stretch;
  height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-main-area,
#detail-overlay .detail-layout.is-square .detail-main-area {
  grid-column: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  overflow: visible;
}

#detail-overlay .detail-layout.is-landscape .detail-main-area {
  grid-row: 1;
  margin-bottom: var(--wide-main-info-gap, 0px);
}

#detail-overlay .detail-layout.is-square .detail-main-area {
  grid-column: 2;
  grid-row: 1 / span 2;
  margin-bottom: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-media-anchor,
#detail-overlay .detail-layout.is-square .detail-media-anchor {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-stage,
#detail-overlay .detail-layout.is-square .detail-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-stage {
  width: 100%;
}

#detail-overlay .detail-layout.is-landscape .detail-main,
#detail-overlay .detail-layout.is-square .detail-main {
  filter:
    drop-shadow(
      var(--detail-main-shadow-1-x, 0px)
      var(--detail-main-shadow-1-y, 18px)
      var(--detail-main-shadow-1-blur, 36px)
      var(--detail-main-shadow-1-color, rgba(0, 0, 0, 0.10))
    )
    drop-shadow(
      var(--detail-main-shadow-2-x, 0px)
      var(--detail-main-shadow-2-y, 4px)
      var(--detail-main-shadow-2-blur, 10px)
      var(--detail-main-shadow-2-color, rgba(0, 0, 0, 0.22))
    );
  border: var(--detail-main-border-width, 0px) solid var(--detail-main-border-color, rgba(0, 0, 0, 0.12));
  border-radius: var(--detail-main-radius, 0px);
}

#detail-overlay .detail-layout.is-landscape .detail-main {
  width: auto;
  height: 100%;
  max-width: var(--main-max-width-landscape-pc, 100%);
  max-height: 100%;
  object-position: center center;
}

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-right,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-right,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-info-wide,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-info-wide {
    display: block;
    width: 100%;
    margin: 0;
    min-width: 0;
    padding-inline: var(--sp-text-inline-pad, 16px);
    box-sizing: border-box;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-info-stack,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-info-stack {
    display: block;
    width: 100%;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-title-block,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-title-block,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-description,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-description,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-tags-wrap,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-tags-wrap,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-utility,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-utility {
    grid-column: auto;
    grid-row: auto;
    justify-self: auto;
    align-self: auto;
    margin-left: 0;
    margin-right: 0;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-subtitle-row,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-subtitle-row {
    display: inline-block;
    width: auto;
    margin: 0;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-meta-stack,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-meta-stack {
    margin-top: 10px;
  }

#detail-overlay .detail-layout.is-square .detail-main {
  max-width: var(--wd-pc-square-main-max-width, 100%);
  max-height: var(--wd-pc-square-main-max-height, 100%);
}

/* ========================================
   Detail thumbs: wide / square side-rail variant
   ======================================== */
#detail-overlay .detail-layout.is-landscape .detail-main-thumbs-wrap {
  position: absolute;
  top: clamp(10px, 1.5vh, 18px);
  left: calc(100% + var(--wd-pc-landscape-thumbs-offset-x, var(--detail-nav-gap, 14px)));
  z-index: 2;
}

#detail-overlay .detail-layout.is-square .detail-main-thumbs-wrap {
  position: absolute;
  top: auto;
  right: auto;
  bottom: 0;
  left: calc(100% + var(--wd-pc-square-thumbs-offset-x, 18px));
}

#detail-overlay .detail-layout.is-landscape .detail-main-thumbs-wrap .detail-thumbs,
#detail-overlay .detail-layout.is-square .detail-main-thumbs-wrap .detail-thumbs {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  gap: var(--wd-pc-square-thumbs-gap, var(--detail-thumb-gap, 14px));
  align-items: flex-start;
  justify-content: flex-start;
}

#detail-overlay .detail-layout.is-landscape .detail-main-thumbs-wrap .detail-thumb {
  filter: var(--wd-pc-landscape-thumbs-thumb-filter, none);
}

#detail-overlay .detail-layout.is-landscape .detail-main-thumbs-wrap .detail-thumb-frame::after {
  background: rgba(255, 255, 255, var(--wd-pc-landscape-thumbs-overlay-opacity, 0));
}

#detail-overlay .detail-layout.is-square .detail-main-thumbs-wrap .detail-thumb {
  filter: var(--wd-pc-square-thumbs-thumb-filter, none);
}

#detail-overlay .detail-layout.is-square .detail-main-thumbs-wrap .detail-thumb-frame::after {
  background: rgba(255, 255, 255, var(--wd-pc-square-thumbs-overlay-opacity, 0));
}

#detail-overlay .detail-layout.is-landscape .detail-info-wide,
#detail-overlay .detail-layout.is-square .detail-info-wide {
  width: 100%;
  margin: 0;
  min-width: 0;
}

#detail-overlay .detail-layout.is-square .detail-info-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

/* ========================================
   Detail text block: square variant
   ======================================== */
#detail-overlay .detail-layout.is-square .detail-title-block {
  min-width: 0;
}

#detail-overlay .detail-layout.is-square .detail-title-block h2 {
  margin: 0;
  font-size: var(--tall-title-size, 24px);
  line-height: var(--tall-title-line-height, 1.02);
  font-weight: var(--tall-title-weight, 620);
  letter-spacing: var(--tall-title-letter-spacing, -0.018em);
  word-break: break-word;
  text-wrap: balance;
}

#detail-overlay .detail-layout.is-square .detail-subtitle-row {
  display: inline-block;
  width: auto;
  margin-top: var(--wd-pc-square-subtitle-gap-top, 8px);
  background: transparent;
  text-align: left;
  font-size: var(--tall-subtitle-size, 13px);
  line-height: var(--tall-subtitle-line-height, 1.2);
  font-weight: var(--tall-subtitle-weight, 520);
  opacity: var(--tall-subtitle-opacity, 0.88);
  letter-spacing: var(--tall-subtitle-letter-spacing, 0);
}

/* ========================================
   Detail meta stack: square variant
   ======================================== */
#detail-overlay .detail-layout.is-square .detail-meta-stack {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: var(--tall-meta-label-gap, 4px);
  row-gap: var(--tall-meta-row-gap, 4px);
  align-items: baseline;
  margin-top: var(--wd-pc-square-meta-gap-top, 8px);
  font-size: var(--tall-meta-size, 11px);
  line-height: var(--tall-meta-line-height, 1.2);
  opacity: var(--tall-meta-opacity, 0.72);
  letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
}

#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-year,
#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-client {
  display: contents;
}

#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-year::before {
  content: "year:";
}

#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-client::before {
  content: "client:";
}

#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-year::before,
#detail-overlay .detail-layout.is-square .detail-meta-stack .detail-client::before {
  opacity: 0.8;
  text-transform: lowercase;
  letter-spacing: 0.01em;
}

#detail-overlay .detail-description {
  font-size: var(--tall-body-size, 14px);
  line-height: var(--tall-body-line-height, 1.58);
  color: var(--tall-body-color, rgba(0, 0, 0, 0.76));
}

#detail-overlay .detail-layout.is-square .detail-description {
  margin-top: var(--wd-pc-square-body-gap-top, 10px);
}

#detail-overlay .detail-layout.is-square .detail-tags-wrap {
  margin-top: var(--wd-pc-square-tags-gap-top, 8px);
  margin-left: 0;
  align-self: start;
  transform: translateX(var(--portrait-tags-shift-x, 0px));
}

#detail-overlay .detail-layout.is-square .detail-utility {
  margin-top: var(--portrait-related-utility-margin-top, var(--tall-utility-margin-top, 10px));
}

#detail-overlay .detail-layout.is-square .detail-info-wide {
  grid-column: 1;
  grid-row: 1;
  align-self: start;
  margin-top: var(--wd-pc-square-text-offset-y, 38px);
}

#detail-overlay .detail-layout.is-landscape .detail-nav-wide,
#detail-overlay .detail-layout.is-square .detail-nav-wide {
  grid-column: 2;
  grid-row: 2;
  display: block;
}

#detail-overlay .detail-layout.is-landscape .detail-nav-wide {
  width: auto;
  margin: 0 0 0 var(--detail-nav-gap, 14px);
  align-self: end;
  justify-self: end;
  padding-bottom: var(--landscape-a-group-bottom-gap, 16px);
  box-sizing: border-box;
}

#detail-overlay .detail-layout.is-square .detail-nav-wide {
  grid-column: 1;
  grid-row: 2;
  width: 100%;
  margin: var(--tall-related-margin-top, 10px) 0 0 0;
  align-self: start;
  justify-self: start;
}

/* ========================================
   Detail text block: landscape variant
   ======================================== */
#detail-overlay .detail-layout.is-landscape .detail-info-wide {
  grid-column: 1;
  grid-row: 2;
  width: 100%;
  margin: 0;
  min-width: 0;
  margin-bottom: 0;
  align-self: end;
  padding-bottom: var(--landscape-a-group-bottom-gap, 16px);
  box-sizing: border-box;
}

#detail-overlay .detail-layout.is-landscape .detail-info-stack {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 8px;
  align-items: end;
}

#detail-overlay .detail-layout.is-landscape .detail-utility {
  grid-column: 1 / -1;
  grid-row: 1;
  margin-top: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-title-block {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-title-block h2 {
  margin: 0;
  font-size: var(--tall-title-size, 24px);
  line-height: var(--tall-title-line-height, 1.02);
  font-weight: var(--tall-title-weight, 620);
  letter-spacing: var(--tall-title-letter-spacing, -0.018em);
  word-break: break-word;
  text-wrap: balance;
}

#detail-overlay .detail-layout.is-landscape .detail-subtitle-row {
  grid-column: 2;
  grid-row: 2;
  display: inline-block;
  width: auto;
  margin: 0;
  background: transparent;
  text-align: left;
  font-size: var(--tall-subtitle-size, 13px);
  line-height: var(--tall-subtitle-line-height, 1.2);
  font-weight: var(--tall-subtitle-weight, 520);
  opacity: var(--tall-subtitle-opacity, 0.88);
  letter-spacing: var(--tall-subtitle-letter-spacing, 0);
  align-self: end;
  justify-self: start;
}

/* ========================================
   Detail meta stack: landscape variant
   ======================================== */
#detail-overlay .detail-layout.is-landscape .detail-meta-stack {
  grid-column: 1 / -1;
  grid-row: 3;
  display: grid;
  grid-template-columns: max-content max-content max-content max-content;
  column-gap: var(--tall-meta-label-gap, 4px);
  row-gap: 0;
  align-items: baseline;
  justify-content: flex-start;
  margin-top: 0;
  font-size: var(--tall-meta-size, 11px);
  line-height: var(--tall-meta-line-height, 1.2);
  opacity: var(--tall-meta-opacity, 0.72);
  letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
}

#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-year,
#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-client {
  display: contents;
}

#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-year::before {
  content: "year:";
}

#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-client::before {
  content: "client:";
}

#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-year::before,
#detail-overlay .detail-layout.is-landscape .detail-meta-stack .detail-client::before {
  opacity: 0.8;
  text-transform: lowercase;
  letter-spacing: 0.01em;
}

#detail-overlay .detail-layout.is-landscape .detail-description {
  grid-column: 1 / -1;
  grid-row: 4;
  margin-top: 0;
}

#detail-overlay .detail-layout.is-landscape .detail-tags-wrap {
  grid-column: 1 / -1;
  grid-row: 5;
  margin-top: 0;
  margin-left: 0;
  align-self: start;
}

/* ========================================
   Variant layout: Portrait
   ======================================== */
#detail-overlay .detail-layout.is-portrait {
  position: relative;
  display: grid;
  grid-template-columns: var(--tall-pc-right-width, 260px) minmax(0, 1fr);
  column-gap: var(--tall-pc-column-gap, 32px);
  align-items: stretch;
  height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-portrait > * {
  min-width: 0;
  min-height: 0;
}

#detail-overlay .detail-layout.is-portrait .detail-left {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  overflow: visible;
}

#detail-overlay .detail-layout.is-portrait .detail-media-anchor {
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  min-height: 0;
}

#detail-overlay .detail-layout.is-portrait .detail-stage {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: none;
  min-height: 0;
}

/* Portrait main: PC / SP shared layout sizing */
#detail-overlay .detail-layout.is-portrait .detail-main {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: var(--main-max-height-portrait-pc);
  object-fit: contain;
  object-position: center top;
}

/* Portrait main: shared visual treatment */
#detail-overlay .detail-layout.is-portrait .detail-main {
  filter:
    drop-shadow(
      var(--portrait-main-shadow-1-x, 0px)
      var(--portrait-main-shadow-1-y, 18px)
      var(--portrait-main-shadow-1-blur, 36px)
      var(--portrait-main-shadow-1-color, rgba(0, 0, 0, 0.10))
    )
    drop-shadow(
      var(--portrait-main-shadow-2-x, 0px)
      var(--portrait-main-shadow-2-y, 4px)
      var(--portrait-main-shadow-2-blur, 10px)
      var(--portrait-main-shadow-2-color, rgba(0, 0, 0, 0.22))
    );
  border: var(--portrait-main-border-width, 0px) solid var(--portrait-main-border-color, rgba(0, 0, 0, 0.12));
  border-radius: var(--portrait-main-radius, 0px);
}

/* ========================================
   Detail thumbs: portrait variant
   ======================================== */
#detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap {
  position: absolute;
  top: auto;
  bottom: 0;
  left: calc(100% + var(--tall-thumb-offset, 18px));
}

#detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap .detail-thumbs {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  gap: var(--tall-thumb-gap, 14px);
  margin: 0;
  align-items: flex-start;
  justify-content: flex-start;
}

#detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap .detail-thumb {
  filter: var(--wd-pc-portrait-thumbs-thumb-filter, none);
}

#detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap .detail-thumb-frame::after {
  background: rgba(255, 255, 255, var(--wd-pc-portrait-thumbs-overlay-opacity, 0));
}

#detail-overlay .detail-layout.is-portrait .detail-right {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-self: stretch;
  min-height: 0;
  margin-top: var(--detail-portrait-info-offset-y, 38px);
}

/* ========================================
   Detail text block: portrait variant
   ======================================== */
#detail-overlay .detail-layout.is-portrait .detail-title-block h2 {
  margin: 0;
  font-size: var(--tall-title-size, 24px);
  line-height: var(--tall-title-line-height, 1.02);
  font-weight: var(--tall-title-weight, 620);
  letter-spacing: var(--tall-title-letter-spacing, -0.018em);
  word-break: break-word;
  text-wrap: balance;
}

#detail-overlay .detail-layout.is-portrait .detail-subtitle-row {
  order: 2;
  display: inline-block;
  width: auto;
  margin-top: var(--tall-subtitle-margin-top, 8px);
  background: transparent;
  text-align: left;
  font-size: var(--tall-subtitle-size, 13px);
  line-height: var(--tall-subtitle-line-height, 1.2);
  font-weight: var(--tall-subtitle-weight, 520);
  opacity: var(--tall-subtitle-opacity, 0.88);
  letter-spacing: var(--tall-subtitle-letter-spacing, 0);
}

/* ========================================
   Detail meta stack: portrait variant
   ======================================== */
#detail-overlay .detail-layout.is-portrait .detail-meta-stack {
  order: 3;
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: var(--tall-meta-label-gap, 4px);
  row-gap: var(--tall-meta-row-gap, 4px);
  align-items: baseline;
  margin-top: var(--tall-meta-margin-top, 8px);
  font-size: var(--tall-meta-size, 11px);
  line-height: var(--tall-meta-line-height, 1.2);
  opacity: var(--tall-meta-opacity, 0.72);
  letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
}

#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year,
#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client {
  display: contents;
}

#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year::before {
  content: "year:";
}

#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client::before {
  content: "client:";
}

#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year::before,
#detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client::before {
  opacity: 0.8;
  text-transform: lowercase;
  letter-spacing: 0.01em;
}

#detail-overlay .detail-layout.is-portrait .detail-description {
  order: 4;
  margin-top: var(--tall-body-margin-top, 10px);
}

#detail-overlay .detail-layout.is-portrait .detail-tags-wrap {
  order: 5;
  margin-top: var(--tall-tags-margin-top, 8px);
  margin-left: 0;
  align-self: start;
  transform: translateX(var(--portrait-tags-shift-x, 0px));
}

#detail-overlay .detail-layout.is-portrait .related-works {
  order: 6;
  margin-top: var(--portrait-related-margin-top, 10px);
}

#detail-overlay .detail-layout.is-portrait .related-works h3,
#detail-overlay .detail-layout.is-portrait .related-works h4 {
  display: block;
  margin: 0 0 var(--portrait-related-title-margin-bottom, 8px);
  font-size: var(--portrait-related-title-size, 10px);
  line-height: var(--portrait-related-title-line-height, 1.2);
  letter-spacing: var(--portrait-related-title-letter-spacing, 0.01em);
  opacity: var(--portrait-related-title-opacity, 0.56);
  font-weight: var(--portrait-related-title-weight, 400);
}

#detail-overlay .detail-layout.is-portrait .related-title,
#detail-overlay .detail-layout.is-portrait .related-title small {
  display: inline;
}

#detail-overlay .detail-layout.is-portrait .related-grid {
  display: grid;
  grid-template-columns: repeat(4, var(--detail-related-thumb-size, 56px));
  gap: var(--portrait-related-grid-gap, var(--detail-nav-gap, 14px));
  align-items: start;
  justify-content: start;
}

#detail-overlay .detail-layout.is-portrait .related-item {
  position: relative;
  display: block;
  width: var(--detail-related-thumb-size, 56px);
  min-width: var(--detail-related-thumb-size, 56px);
  height: var(--detail-related-thumb-size, 56px);
  overflow: hidden;
}

#detail-overlay .detail-layout.is-portrait .related-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: transparent;
  pointer-events: none;
}

#detail-overlay .detail-layout.is-portrait .related-item img {
  display: block;
  width: var(--wd-pc-portrait-related-thumb-size, var(--detail-related-thumb-size, 56px));
  height: var(--wd-pc-portrait-related-thumb-size, var(--detail-related-thumb-size, 56px));
  filter: var(--wd-pc-portrait-related-thumb-filter, brightness(1.12) saturate(0.72) contrast(0.92));
  opacity: var(--detail-related-thumb-opacity, 1);
}

#detail-overlay .detail-layout.is-portrait .detail-utility {
  order: 7;
  margin-top: var(--portrait-related-utility-margin-top, var(--tall-utility-margin-top, 10px));
}

@media screen and (max-width: 599px) {
  #detail-overlay .detail-layout.is-portrait .detail-utility {
    margin-top: var(--sp-related-utility-gap, 16px);
  }

  #detail-overlay .detail-layout.is-portrait .detail-utility [data-role="detail-back"] {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
    min-height: var(--sp-back-hit-min-height, 44px);
    padding-bottom: var(--sp-back-bottom-pad, 28px);
    box-sizing: border-box;
  }
}

#detail-overlay .detail-utility [data-role="detail-back"] {
  display: inline-flex;
  align-items: center;
  gap: 0.14em;
  font-size: var(--portrait-back-font-size, 12px);
  line-height: var(--portrait-back-line-height, 1.2);
  letter-spacing: var(--portrait-back-letter-spacing, 0.01em);
  text-decoration: none;
  white-space: nowrap;
}

#detail-overlay .detail-layout.is-portrait .detail-utility [data-role="detail-back"] {
  margin-top: var(--portrait-back-margin-top, 0px);
}

#detail-overlay .detail-utility [data-role="detail-back"] .detail-back-text {
  display: inline-flex;
  align-items: center;
}

#detail-overlay .detail-utility [data-role="detail-back"] .detail-back-char {
  display: inline-block;
  opacity: 0;
  transform: translateX(var(--portrait-back-char-offset-x, 0.38em));
  animation: portraitBackCharIn var(--portrait-back-char-duration, 0.42s) ease forwards;
  animation-delay: calc(var(--char-index) * var(--portrait-back-char-stagger, 0.06s));
}

#detail-overlay .detail-utility [data-role="detail-back"] .detail-back-arrow {
  display: inline-block;
  transform: translateX(0);
  animation: portraitBackArrowHop var(--portrait-back-arrow-bounce-duration, 0.38s) ease forwards;
  animation-delay: calc(
    (4 * var(--portrait-back-char-stagger, 0.06s)) +
    var(--portrait-back-char-duration, 0.42s) -
    0.08s
  );
}

@keyframes portraitBackCharIn {
  0% {
    opacity: 0;
    transform: translateX(var(--portrait-back-char-offset-x, 0.38em));
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes portraitBackArrowHop {
  0% {
    opacity: 0.72;
    transform: translateX(calc(var(--portrait-back-arrow-bounce-distance, 0.1em) * 1));
  }
  55% {
    opacity: 1;
    transform: translateX(calc(var(--portrait-back-arrow-bounce-distance, 0.1em) * -1));
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ========================================
   Responsive helpers
   ======================================== */

@media screen and (min-width: 821px) and (max-width: 1024px) {
  #detail-overlay {
    --detail-side-pad: 20px;
    --tall-pc-right-width: 220px;
    --tall-pc-column-gap: 20px;
  }
}

@media screen and (max-width: 599px) {
  /* ========================================
     Detail thumbs: portrait mobile variant
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap {
    display: none;
  }

  /* ========================================
     Detail mobile image stack: portrait mobile variant
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-mobile-image-stack {
    display: flex;
    flex-direction: column;
    gap: var(--sp-seq-gap, 8px);
    width: 100%;
    margin-top: 0;
  }

  #detail-overlay .detail-layout.is-portrait .detail-mobile-image-item {
    display: block;
    width: 100%;
    margin: 0;
    overflow: visible;
    box-shadow:
      var(--sp-seq-shadow-x, 0px)
      var(--sp-seq-shadow-y, 2px)
      var(--sp-seq-shadow-blur, 6px)
      var(--sp-seq-shadow-color, rgba(0, 0, 0, 0.12));
  }

  #detail-overlay .detail-layout.is-portrait .detail-mobile-image {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    margin: 0;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    user-select: none;
    -webkit-user-select: none;
  }

  /* ========================================
     Related works: portrait mobile variant
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .related-works {
    margin-bottom: var(--sp-related-bottom-gap, 20px);
    width: 100%;
  }

  #detail-overlay .detail-layout.is-portrait .related-works h3,
  #detail-overlay .detail-layout.is-portrait .related-works h4 {
    margin: 0 0 var(--sp-related-title-margin-bottom, 10px);
    text-align: center;
  }

  #detail-overlay .detail-layout.is-portrait .related-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-related-grid-gap, 18px);
    justify-content: center;
    align-items: flex-start;
    width: 100%;
  }

  #detail-overlay .detail-layout.is-portrait .related-item {
    width: var(--sp-related-thumb-size, 42px);
    min-width: var(--sp-related-thumb-size, 42px);
    height: var(--sp-related-thumb-size, 42px);
  }

  #detail-overlay .detail-layout.is-portrait .related-item img {
    width: var(--sp-related-thumb-size, 42px);
    height: var(--sp-related-thumb-size, 42px);
  }

  #detail-overlay .detail-layout.is-portrait {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    row-gap: var(--tall-mobile-stack-gap, 12px);
    align-items: start;
    height: auto;
    min-height: 0;
  }

  #detail-overlay .detail-layout.is-portrait .detail-left {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-width: 0;
    min-height: 0;
    overflow: visible;
    justify-self: stretch;
  }

  #detail-overlay .detail-layout.is-portrait .detail-media-anchor,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-media-anchor,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-media-anchor {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--sp-media-stack-gap, 6px);
    width: 100vw;
    height: auto;
    max-width: 100vw;
    margin-inline: calc((100% - 100vw) / 2);
  }

  #detail-overlay .detail-layout.is-portrait .detail-stage,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-stage,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: auto;
    max-width: 100vw;
    max-height: none;
    min-height: 0;
    margin-inline: 0;
  }

  #detail-overlay .detail-layout.is-portrait.is-source-landscape-mobile .detail-main {
    margin-top: var(--sp-portrait-source-landscape-margin-top, 18px);
    margin-bottom: var(--sp-portrait-source-landscape-margin-bottom, 18px);
  }

  /* Portrait main: SP base layout sizing
     mobile image stack がある時だけ main を隠す */
  #detail-overlay .detail-layout.is-portrait .detail-stage:has(.detail-mobile-image-stack) .detail-main {
    display: none;
    width: 100%;
    height: auto;
    max-width: none;
    max-height: var(--main-max-height-portrait-sp, 60dvh);
    margin: 0;
    object-fit: contain;
    object-position: center top;
  }

  #detail-overlay .detail-layout.is-portrait.is-source-landscape-mobile .detail-subtitle-row {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
    align-self: start;
    margin-top: var(--sp-subtitle-margin-top, 8px);
  }

  /* Portrait main: SP landscape extra vertical gap
   Current tuned value is intentionally large in calc result context.
   Keep this value unless actual SP landscape visual check says otherwise.
  */
  @media screen and (max-width: 900px) and (orientation: landscape) {
    #detail-overlay .detail-layout.is-portrait .detail-main {
      max-height: calc(
        var(--main-max-height-portrait-sp, 60dvh)
        - var(--sp-landscape-portrait-top-gap)
        - var(--sp-landscape-portrait-bottom-gap)
      );
    }
  }

  #detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap {
    position: static;
    top: auto;
    left: auto;
    transform: none;
    width: 100%;
    margin-top: var(--tall-thumbs-margin-top, 6px);
  }

  #detail-overlay .detail-layout.is-portrait .detail-main-thumbs-wrap .detail-thumbs {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--tall-thumb-gap, 14px);
    margin: 0;
    align-items: flex-start;
    justify-content: center;
    align-self: center;
  }

#detail-overlay .detail-layout.is-portrait .detail-right {
  grid-column: 1;
  grid-row: 2;
  display: block;
  width: 100%;
  margin-top: var(--detail-portrait-info-offset-y, 72px);
  margin-right: 0;
  margin-bottom: 0;
  margin-left: 0;
  min-width: 0;
  align-self: end;
  padding-inline: var(--sp-text-inline-pad, 16px);
  padding-bottom: var(--landscape-a-group-bottom-gap, 16px);
  box-sizing: border-box;
}

#detail-overlay .detail-layout.is-portrait .detail-info-wide,
#detail-overlay .detail-layout.is-portrait .detail-info-stack {
  width: 100%;
  min-width: 0;
}

#detail-overlay .detail-layout.is-portrait .detail-info-stack {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 8px;
  align-items: end;
}

#detail-overlay .detail-layout.is-portrait .detail-utility {
  grid-column: 1 / -1;
  grid-row: 1;
  margin-top: 0;
}

#detail-overlay .detail-layout.is-portrait .detail-title-block {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
  order: unset;
}

#detail-overlay .detail-layout.is-portrait .detail-title-block h2 {
  margin: 0;
  font-size: var(--tall-title-size, 24px);
  line-height: var(--tall-title-line-height, 1.02);
  font-weight: var(--tall-title-weight, 620);
  letter-spacing: var(--tall-title-letter-spacing, -0.018em);
  word-break: break-word;
  text-wrap: balance;
}

#detail-overlay .detail-layout.is-portrait .detail-subtitle-row {
  grid-column: 2;
  grid-row: 2;
  display: inline-block;
  width: auto;
  margin: 0;
  background: transparent;
  text-align: left;
  font-size: var(--sp-subtitle-size, var(--tall-subtitle-size, 13px));
  line-height: var(--sp-subtitle-line-height, var(--tall-subtitle-line-height, 1.2));
  font-weight: var(--tall-subtitle-weight, 520);
  opacity: var(--tall-subtitle-opacity, 0.88);
  letter-spacing: var(--sp-subtitle-letter-spacing, var(--tall-subtitle-letter-spacing, 0));
  align-self: end;
  justify-self: start;
}

@media screen and (max-width: 900px) and (orientation: portrait) {
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-right,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-right,
  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-info-wide,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-info-wide {
    display: block;
    width: 100%;
    margin: 0;
    min-width: 0;
    padding-inline: var(--sp-text-inline-pad, 16px);
    box-sizing: border-box;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-info-stack,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-info-stack {
    display: block;
    width: 100%;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-subtitle-row,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-subtitle-row {
    display: inline-block;
    width: auto;
    margin: 0;
  }

  #detail-overlay .detail-layout.is-landscape.is-mobile .detail-meta-stack,
  #detail-overlay .detail-layout.is-square.is-mobile .detail-meta-stack {
    margin-top: 10px;
  }
}



  /* ========================================
     Detail meta stack: portrait mobile variant
     - stage 1: grid placement / base mobile structure
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-meta-stack {
    grid-column: 1 / -1;
    grid-row: 3;
    display: grid;
    grid-template-columns: max-content minmax(0, 1fr);
    column-gap: var(--sp-meta-label-gap, 4px);
    row-gap: var(--sp-meta-row-gap, 4px);
    align-items: baseline;
    justify-content: flex-start;
    margin-top: 0;
    font-size: var(--tall-meta-size, 11px);
    line-height: var(--tall-meta-line-height, 1.2);
   opacity: var(--tall-meta-opacity, 0.72);
   letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
  }

  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year,
  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client {
    display: contents;
  }

  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year::before {
    content: "year:";
  }

  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client::before {
    content: "client:";
  }

  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-year::before,
  #detail-overlay .detail-layout.is-portrait .detail-meta-stack .detail-client::before {
    opacity: 0.8;
    text-transform: lowercase;
    letter-spacing: 0.01em;
  }

  #detail-overlay .detail-layout.is-portrait .detail-description {
    grid-column: 1 / -1;
    grid-row: 4;
    margin-top: 0;
    order: unset;
  }

  #detail-overlay .detail-layout.is-portrait .detail-tags-wrap {
    grid-column: 1 / -1;
    grid-row: 5;
    margin-top: 0;
    margin-left: 0;
    align-self: start;
  }

  /* ========================================
     Detail text block: portrait mobile variant
     - stage 2: SP typography scale
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-title-block h2 {
    font-size: var(--sp-title-size, 21px);
    line-height: var(--sp-title-line-height, 1.02);
    letter-spacing: var(--sp-title-letter-spacing, -0.018em);
  }

  #detail-overlay .detail-layout.is-portrait .detail-subtitle-row {
    margin-top: var(--sp-subtitle-margin-top, 6px);
  }

  /* ========================================
     Detail meta stack: portrait mobile variant
     - stage 2: SP typography scale
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-meta-stack {
    font-size: var(--sp-meta-size, 11px);
    line-height: var(--sp-meta-line-height, 1.2);
    column-gap: var(--sp-meta-label-gap, 4px);
    letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
    margin-top: var(--sp-meta-margin-top, 8px);
    row-gap: var(--sp-meta-row-gap, 4px);
  }

  #detail-overlay .detail-layout.is-portrait .detail-description {
    font-size: var(--sp-body-size, 14px);
    line-height: var(--sp-body-line-height, 1.58);
    margin-top: var(--sp-body-margin-top, 9px);
  }

  #detail-overlay .detail-layout.is-portrait .detail-tags-wrap {
    gap: var(--sp-tags-gap, 4px);
    margin-top: var(--sp-tags-margin-top, 14px);
    transform: translateX(var(--sp-tags-shift-x, 0px));
  }

  /* ========================================
     Detail text block: portrait mobile variant
     - stage 3: final fine tuning
     ======================================== */
  #detail-overlay .detail-layout.is-portrait .detail-title-block {
    order: 1;
  }

  #detail-overlay .detail-layout.is-portrait .detail-subtitle-row {
    order: 2;
  }

  #detail-overlay .detail-layout.is-portrait .detail-description {
    order: 4;
  }

  #detail-overlay .detail-layout.is-portrait .related-title,
  #detail-overlay .detail-layout.is-portrait .related-title small {
    display: none !important;
  }
}

@media screen and (max-width: 599px) {
  :root {
    --grid-cols: 2;
    --grid-columns: 2;
  }
}

@media screen and (min-width: 600px) and (max-width: 899px) {
  #detail-overlay {
    --detail-side-pad: 20px;
    --tablet-bottom-col-gap: 28px;
  }

  #detail-overlay .detail-layout.is-tablet-portrait {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows:
      var(--wd-tablet-portrait-media-gap-top, 24px)
      auto
      var(--wd-tablet-portrait-text-gap-top, 28px)
      auto
      var(--wd-tablet-portrait-bottom-gap, 24px);
    width: 100%;
    height: 100%;
    min-height: 100%;
    align-items: stretch;
  }

  /* ===== 上エリア ===== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-top {
    grid-column: 1;
    grid-row: 2;
    width: 100%;
    min-width: 0;
    min-height: 0;
    display: grid;
    justify-items: center;
    align-items: start;
    align-content: start;
    overflow: hidden;
  }

  /* main + thumbs の実寸グループ */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-top-group {
    width: max-content;
    max-width: 100%;
    height: auto;
    min-width: 0;
    min-height: 0;
    display: grid;
    grid-template-rows: auto auto;
    justify-items: center;
    align-items: start;
    align-content: start;
  }

  /* main画像専用箱。実寸はJSが入れる */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-top-fitbox {
    width: auto;
    height: auto;
    min-width: 0;
    min-height: 0;
    position: relative;
    overflow: hidden;
  }

  /* mediaBoxの中で contain */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-main {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    object-fit: contain;
    object-position: center center;
  }

  /* ========================================
     Detail thumbs: tablet portrait variant
     ======================================== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-top-thumbs {
    width: max-content;
    margin-top: var(--wd-tablet-portrait-thumbs-gap-top, 6px);
    justify-self: center;
    align-self: start;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-top-thumbs .detail-thumbs {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: var(--wd-tablet-portrait-thumbs-gap, 14px);
    width: max-content;
    margin: 0 auto;
    align-items: flex-start;
    justify-content: center;
  }

  /* tablet portrait では旧上半分構造を使わない */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-left,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-media-anchor,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-stage,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-main-thumbs-wrap,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-mobile-image-stack {
    display: none !important;
  }

  /* ===== 下エリア ===== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-bottom {
    grid-column: 1;
    grid-row: 4;
    display: grid;
    grid-template-columns: minmax(0, 1fr) max-content;
    column-gap: var(--tablet-bottom-col-gap, 28px);
    align-items: start;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    padding-inline: var(--sp-text-inline-pad, 16px);
  }

  /* 左下 text block = PC works landscape 準拠 */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-right {
    grid-column: 1;
    grid-row: 1;
    display: block;
    width: 100%;
    margin: 0;
    min-width: 0;
    align-self: start;
    box-sizing: border-box;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-info-wide,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-info-stack {
    width: 100%;
    min-width: 0;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-info-stack {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 12px;
    row-gap: 8px;
    align-items: end;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-utility {
    grid-column: 1 / -1;
    grid-row: 1;
    margin-top: 0;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-title-block {
    grid-column: 1;
    grid-row: 2;
    min-width: 0;
  }

  /* ========================================
     Detail text block: tablet portrait variant
     ======================================== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-title-block h2 {
    margin: 0;
    font-size: var(--tall-title-size, 24px);
    line-height: var(--tall-title-line-height, 1.02);
    font-weight: var(--tall-title-weight, 620);
    letter-spacing: var(--tall-title-letter-spacing, -0.018em);
    word-break: break-word;
    text-wrap: balance;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-subtitle-row {
    grid-column: 2;
    grid-row: 2;
    display: inline-block;
    width: auto;
    margin: 0;
    background: transparent;
    text-align: left;
    font-size: var(--tall-subtitle-size, 13px);
    line-height: var(--tall-subtitle-line-height, 1.2);
    font-weight: var(--tall-subtitle-weight, 520);
    opacity: var(--tall-subtitle-opacity, 0.88);
    letter-spacing: var(--tall-subtitle-letter-spacing, 0);
    align-self: end;
    justify-self: start;
  }

  /* ========================================
     Detail meta stack: tablet portrait variant
     ======================================== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack {
    grid-column: 1 / -1;
    grid-row: 3;
    display: grid;
    grid-template-columns: max-content max-content max-content max-content;
    column-gap: var(--tall-meta-label-gap, 4px);
    row-gap: 0;
    align-items: baseline;
    justify-content: flex-start;
    margin-top: 0;
    font-size: var(--tall-meta-size, 11px);
    line-height: var(--tall-meta-line-height, 1.2);
    opacity: var(--tall-meta-opacity, 0.72);
    letter-spacing: var(--tall-meta-letter-spacing, 0.01em);
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-year,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-client {
    display: contents;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-year::before {
    content: "year:";
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-client::before {
    content: "client:";
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-year::before,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-meta-stack .detail-client::before {
    opacity: 0.8;
    text-transform: lowercase;
    letter-spacing: 0.01em;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-description {
    grid-column: 1 / -1;
    grid-row: 4;
    margin-top: 0;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-tags-wrap {
    grid-column: 1 / -1;
    grid-row: 5;
    margin-top: 0;
    margin-left: 0;
    align-self: start;
  }

  /* 右下 Related */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    align-self: start;
    text-align: right;
    width: max-content;
    max-width: 100%;
  }

  /* ========================================
     Related works: tablet portrait variant
     ======================================== */
  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-works {
    width: max-content;
    max-width: 100%;
    margin: 0;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-works h3,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-works h4 {
    display: block;
    margin: 0 0 8px;
    text-align: right;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-grid {
    display: inline-flex;
    flex-wrap: wrap;
    gap: var(--portrait-related-grid-gap, var(--detail-nav-gap, 14px));
    align-items: flex-start;
    justify-content: flex-end;
    width: auto;
    max-width: 100%;
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-item {
    display: block;
    width: var(--detail-related-thumb-size, 56px);
    min-width: var(--detail-related-thumb-size, 56px);
    height: var(--detail-related-thumb-size, 56px);
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-item img {
    display: block;
    width: var(--detail-related-thumb-size, 56px);
    height: var(--detail-related-thumb-size, 56px);
    opacity: var(--detail-related-thumb-opacity, 1);
  }

  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-title,
  #detail-overlay .detail-layout.is-tablet-portrait .detail-related-wide .related-title small {
    display: none;
  }
}

#detail-overlay.detail-ui-light .detail-title-block h2,
#detail-overlay.detail-ui-light .detail-subtitle-row,
#detail-overlay.detail-ui-light .detail-meta-stack,
#detail-overlay.detail-ui-light .detail-description,
#detail-overlay.detail-ui-light .detail-utility [data-role="detail-back"],
#detail-overlay.detail-ui-light .related-works h3,
#detail-overlay.detail-ui-light .related-works h4,
#detail-overlay.detail-ui-light .related-title,
#detail-overlay.detail-ui-light .related-title small,
#detail-overlay.detail-ui-light .detail-nav-related-label,
#detail-overlay.detail-ui-light .nav-button {
  color: rgba(0, 0, 0, 0.76);
}

#detail-overlay.detail-ui-light .detail-tag,
#detail-overlay.detail-ui-light .detail-tags-wrap a,
#detail-overlay.detail-ui-light .detail-tags-wrap span,
#detail-overlay.detail-ui-light .detail-tags-wrap button {
  color: rgba(0, 0, 0, 0.72);
  border-color: rgba(0, 0, 0, 0.10);
}

#detail-overlay.detail-ui-dark .detail-title-block h2,
#detail-overlay.detail-ui-dark .detail-subtitle-row,
#detail-overlay.detail-ui-dark .detail-meta-stack,
#detail-overlay.detail-ui-dark .detail-description,
#detail-overlay.detail-ui-dark .detail-utility [data-role="detail-back"],
#detail-overlay.detail-ui-dark .related-works h3,
#detail-overlay.detail-ui-dark .related-works h4,
#detail-overlay.detail-ui-dark .related-title,
#detail-overlay.detail-ui-dark .related-title small,
#detail-overlay.detail-ui-dark .detail-nav-related-label,
#detail-overlay.detail-ui-dark .nav-button {
  color: rgba(255, 255, 255, 0.92);
}

#detail-overlay.detail-ui-dark .detail-tag,
#detail-overlay.detail-ui-dark .detail-tags-wrap a,
#detail-overlay.detail-ui-dark .detail-tags-wrap span,
#detail-overlay.detail-ui-dark .detail-tags-wrap button {
  color: rgba(255, 255, 255, 0.92);
  border-color: rgba(255, 255, 255, 0.28);
}

/* detail-ui-adaptive experiment removed */