/**
 * 相談詳細ページ（html-chech thread-detail / Figma レイアウト準拠）
 */

/* -----------------------------------------------------------------
   ページシェル
   ----------------------------------------------------------------- */
.thread-detail-page {
  padding: var(--thread-detail-page-py) 0;
  background: var(--color-thread-detail-bg);
}

.thread-detail-page__inner {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-inner-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--thread-detail-pad-x);
  padding-right: var(--thread-detail-pad-x);
}

.thread-detail-page .layout-main {
  padding-block: 0;
}

/* パンくず */
.thread-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--thread-detail-stack-gap);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-thread-detail-muted);
}

.thread-breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.thread-breadcrumb__sep {
  color: var(--color-text-secondary);
}

.thread-breadcrumb__current {
  font-weight: var(--font-weight-normal);
  color: var(--color-text-secondary);
}

/* -----------------------------------------------------------------
   質問カード（相談本文ブロック）
   ----------------------------------------------------------------- */
.thread-qcard {
  display: flex;
  flex-direction: column;
  gap: var(--thread-detail-card-row-gap);
  margin-bottom: var(--thread-detail-column-gap);
  padding: var(--thread-detail-card-py) var(--thread-detail-card-px);
  background: var(--color-base-1);
  border: 1px solid var(--color-thread-detail-card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-figma-card);
}

.thread-qcard__top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--thread-detail-tag-row-py) 0;
  margin: 0;
}

.thread-qcard__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.thread-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.thread-qcard__tags .thread-pill.cat-badge {
  padding: 6px 12px;
  font-size: var(--font-size-sm);
  font-weight: 900;
}

.thread-pill--cat {
  background: var(--color-thread-detail-pill-cat-bg);
  color: var(--color-thread-detail-pill-cat-text);
}

.thread-pill--hash {
  background: var(--color-thread-detail-pill-hash-bg);
  color: var(--color-thread-detail-muted);
}

.thread-qcard__dates {
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
  text-align: right;
}

.thread-qcard__dates p {
  margin: 0;
}

.thread-qcard__dates p + p {
  margin-top: 2px;
}

.thread-qcard__title {
  margin: 0;
  padding: var(--thread-detail-title-block-py) 0;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 900;
  line-height: 1.25;
  text-align: center;
  color: var(--color-thread-detail-title);
}

/* カテゴリ別タイトル色（バッジと同じ --cat-*-text トークン） */
.thread-qcard__title[data-thread-cat="ningen"] {
  color: var(--cat-ningen-text);
}

.thread-qcard__title[data-thread-cat="career"] {
  color: var(--cat-career-text);
}

.thread-qcard__title[data-thread-cat="skill"] {
  color: var(--cat-skill-text);
}

.thread-qcard__title[data-thread-cat="hataraki"] {
  color: var(--cat-hataraki-text);
}

.thread-qcard__title[data-thread-cat="kachi"] {
  color: var(--cat-kachi-text);
}

.thread-qcard__author {
  box-sizing: border-box;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--thread-detail-prose-px);
  padding-right: var(--thread-detail-prose-px);
  text-align: start;
}

.thread-qcard__author--link {
  text-decoration: none;
  color: inherit;
}

.thread-qcard__author--link:hover .thread-qcard__name {
  text-decoration: underline;
}

.thread-qcard__avatar {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.thread-qcard__avatar .avatar,
.thread-qcard__avatar img {
  width: 50px;
  height: 50px;
  object-fit: cover;
}

.thread-qcard__avatar .avatar--anonymous,
.thread-qcard__avatar .avatar--sm {
  width: 50px;
  height: 50px;
  font-size: var(--font-size-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.thread-qcard__author-text {
  min-width: 0;
}

.thread-qcard__author-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3);
}

.thread-qcard__name {
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-prose);
}

.thread-qcard__region {
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
}

.thread-qcard__job {
  margin: var(--space-1) 0 0;
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
}

.thread-prose {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
  padding: var(--thread-detail-prose-py) var(--thread-detail-prose-px);
  font-size: var(--font-size-base);
  line-height: var(--thread-detail-prose-line);
  color: var(--color-thread-detail-prose);
  text-align: start;
}

.thread-prose p {
  margin: 0 0 var(--thread-detail-p-gap);
}

.thread-prose p:last-child {
  margin-bottom: 0;
}

/* post_content が nl2br のとき、モックの段落間に近づける */
.thread-qcard .thread-prose br {
  display: block;
  margin-bottom: var(--space-3);
}

.thread-answer .answer-body__section:not(.answer-body__section--message) .answer-body__content br {
  display: block;
  margin-bottom: var(--space-3);
}

/* 特に聞きたいこと */
.thread-callout {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: var(--thread-detail-callout-gap);
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin: 0 auto;
  padding: var(--thread-detail-callout-py) var(--thread-detail-callout-px);
  border-radius: var(--radius-lg);
}

.thread-callout--teal {
  background: var(--color-thread-detail-callout-bg);
  border: 1px solid var(--color-thread-detail-callout-border);
}

.thread-callout__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
  font-size: var(--font-size-base);
  font-weight: 900;
  color: var(--color-thread-detail-teal-strong);
}

.thread-callout__icon {
  flex-shrink: 0;
}

.thread-callout__list {
  width: 100%;
  margin: 0;
  padding-left: 1.25rem;
  color: var(--color-thread-detail-prose);
  line-height: 1.65;
}

.thread-callout__list li + li {
  margin-top: var(--space-2);
}

/* スレリアクション（カード内） */
.thread-qcard .thread-react-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin: 0;
  padding: var(--thread-detail-react-bar-py) 0;
  border-top: 1px solid var(--color-thread-detail-card-border);
  border-bottom: 1px solid var(--color-thread-detail-card-border);
}

.thread-qcard .thread-actions {
  margin: 0;
  padding: 0;
  border: none;
  justify-content: center;
  width: 100%;
}

.thread-qcard .thread-actions .reaction-group {
  justify-content: center;
}

.thread-qcard .thread-actions__note {
  width: 100%;
  text-align: center;
  margin-top: var(--space-3);
}

/* CTA ＋ シェア（カード内） */
.thread-qcard__cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--thread-detail-cta-stack-gap);
  margin: 0;
  padding: var(--thread-detail-prose-py) 0 0;
}

.thread-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px var(--space-6);
  border: none;
  border-radius: var(--radius-full);
  background: var(--color-thread-detail-teal-strong);
  color: var(--color-base-1);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  box-shadow: var(--shadow-figma-card);
  text-decoration: none;
  font-family: inherit;
}

.thread-btn-primary:hover {
  filter: brightness(1.03);
}

.thread-btn-primary__icon {
  font-size: 1.125em;
  line-height: 1;
}

.thread-qcard .thread-share {
  margin: 0;
  padding: 0;
  border: none;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.thread-qcard .thread-share__label {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
}

.thread-qcard .thread-share__list {
  display: flex;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.thread-qcard .thread-share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.thread-qcard .thread-share__btn img {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  border-radius: var(--radius-full);
}

.thread-qcard .thread-share__btn:hover {
  transform: translateY(-1px);
  opacity: 0.85;
}

.thread-qcard .thread-share__btn:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 3px;
  border-radius: var(--radius-full);
}

.thread-qcard__cta-wrap > .thread-qcard__tags {
  justify-content: center;
  width: 100%;
}

.thread-qcard .answer-cta {
  margin: 0;
  padding: 0;
  border: none;
  text-align: center;
  width: 100%;
}

.thread-qcard .answer-cta__text {
  display: none;
}

.thread-qcard .answer-cta__hint {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
}

/* -----------------------------------------------------------------
   下部 CTA（動画背景）
   ----------------------------------------------------------------- */
/* 体験談リスト直下：カードと CTA の間を qcard〜リスト間と同じトークンで空ける */
.thread-detail-page .answer-list + .thread-bottom-cta {
  margin-top: var(--thread-detail-column-gap);
}

.thread-bottom-cta {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--thread-detail-bottom-cta-gap);
  margin: 0 0 var(--space-4);
  padding: var(--thread-detail-card-py);
  text-align: center;
  background: var(--color-base-1);
  border: 1px solid var(--color-thread-detail-bottom-cta-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-figma-card);
  overflow: hidden;
}

.thread-bottom-cta__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.thread-bottom-cta__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(255, 255, 255, 0.72);
  pointer-events: none;
}

.thread-bottom-cta__title,
.thread-bottom-cta__lead,
.thread-bottom-cta .thread-btn-primary,
.thread-bottom-cta .thread-share--center {
  position: relative;
  z-index: 2;
}

.thread-bottom-cta__title {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 900;
  color: var(--color-thread-detail-prose);
}

.thread-bottom-cta__lead {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-thread-detail-muted);
  line-height: 1.43;
}

.thread-bottom-cta .thread-btn-primary--narrow {
  align-self: center;
  min-width: min(100%, 20rem);
}

.thread-share--center {
  justify-content: center;
}

.thread-bottom-cta .thread-share {
  margin: 0;
  padding: 0;
  border: none;
}

.thread-bottom-cta .thread-share__btns {
  display: flex;
  gap: var(--space-2);
}

.thread-bottom-cta .thread-share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.thread-bottom-cta .thread-share__btn img {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  border-radius: var(--radius-full);
}

.thread-bottom-cta .thread-share__btn:hover {
  transform: translateY(-1px);
  opacity: 0.85;
}

.thread-bottom-cta .thread-share__btn:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 3px;
  border-radius: var(--radius-full);
}

/* -----------------------------------------------------------------
   体験談リスト見出し
   ----------------------------------------------------------------- */
.thread-answers-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0 0 calc(var(--thread-detail-before-best) / 2);
  min-height: 4.75rem;
}

.thread-answers-head__title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 900;
  color: var(--color-thread-detail-prose);
}

.answer-list__sort.thread-detail-sort-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

select.thread-detail-sort {
  display: inline-block;
  min-width: 9.5rem;
  margin: 0;
  padding: var(--space-2) 2.25rem var(--space-2) 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-base-1);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 10px 6px;
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-muted);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

select.thread-detail-sort:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 2px;
}

/* -----------------------------------------------------------------
   体験談カード（ベスト／通常）
   ----------------------------------------------------------------- */
.thread-answer {
  position: relative;
  margin: 0 0 var(--thread-detail-stack-gap);
  background: var(--color-base-1);
  border: 1px solid var(--color-thread-detail-card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-figma-card);
}

.thread-answer--best {
  border: 2px solid var(--color-thread-detail-best-border);
}

.thread-answer__ribbon {
  position: absolute;
  top: 0;
  left: var(--space-4);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--color-thread-detail-best-ribbon);
  color: var(--color-base-1);
  font-size: var(--font-size-sm);
  font-weight: 900;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-figma-card);
  transform: translateY(-50%);
  z-index: 2;
}

.thread-answer__body {
  display: flex;
  flex-direction: column;
  gap: var(--thread-detail-best-inner-gap);
  padding: var(--thread-detail-best-inner-py) var(--thread-detail-card-px);
}

.thread-answer--best .answer-card {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  margin: 0;
}

.thread-answer:not(.thread-answer--best) .answer-card {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.thread-answer .answer-card__best-badge {
  display: none;
}

.thread-answer .answer-card__title {
  margin: 0;
  padding: var(--thread-detail-title-block-py) 0;
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-thread-detail-title);
  text-align: center;
  border: none;
}

.thread-answer .answer-card__title a {
  color: inherit;
  text-decoration: none;
}

.thread-answer .answer-card__title a:hover {
  text-decoration: underline;
}

.thread-answer .answer-card__title[data-thread-cat="ningen"] {
  color: var(--cat-ningen-text);
}

.thread-answer .answer-card__title[data-thread-cat="career"] {
  color: var(--cat-career-text);
}

.thread-answer .answer-card__title[data-thread-cat="skill"] {
  color: var(--cat-skill-text);
}

.thread-answer .answer-card__title[data-thread-cat="hataraki"] {
  color: var(--cat-hataraki-text);
}

.thread-answer .answer-card__title[data-thread-cat="kachi"] {
  color: var(--cat-kachi-text);
}

.thread-answer .answer-card__excerpt {
  display: none;
}

.thread-answer .answer-card__meta {
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0 auto;
  max-width: var(--thread-detail-prose-column-max);
  padding: 0 var(--thread-detail-prose-px);
  border: none;
  text-align: start;
}

.thread-answer .answer-card__avatar {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.thread-answer .answer-card__avatar .avatar,
.thread-answer .answer-card__avatar .avatar__img {
  width: 50px;
  height: 50px;
  object-fit: cover;
}

.thread-answer .answer-card__avatar .avatar--anonymous,
.thread-answer .answer-card__avatar .avatar--sm {
  width: 50px;
  height: 50px;
  font-size: var(--font-size-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.thread-answer .answer-card__name {
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-prose);
}

.thread-answer .answer-card__region,
.thread-answer .answer-card__job,
.thread-answer .answer-card__posted {
  color: var(--color-thread-detail-muted);
}

.thread-answer .answer-card__author-hit:hover .answer-card__name {
  color: var(--color-thread-detail-prose);
}

.thread-answer .answer-body {
  box-sizing: border-box;
  margin-top: 0;
  padding-left: 0;
  border-left: none;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
  text-align: start;
}

.thread-answer .answer-body__section {
  margin-bottom: var(--thread-detail-p-gap);
}

.thread-answer .answer-body__section:last-child {
  margin-bottom: 0;
}

/* モック .mock-figma-prose と同じ字下げ・上下（p 相当の余白） */
.thread-answer .answer-body__section:not(.answer-body__section--message) .answer-body__content {
  box-sizing: border-box;
  padding: var(--thread-detail-prose-py) var(--thread-detail-prose-px);
  margin: 0;
  font-size: var(--font-size-base);
  line-height: var(--thread-detail-prose-line);
  color: var(--color-thread-detail-prose);
  text-align: start;
}

.thread-answer .answer-body__section--message .answer-body__content {
  padding: var(--space-3) 0 0;
  margin: 0;
  font-size: var(--font-size-base);
  line-height: var(--thread-detail-prose-line);
  color: var(--color-thread-detail-prose);
  text-align: start;
}

.thread-answer .answer-body__heading {
  font-size: var(--font-size-base);
  font-weight: 900;
  color: var(--color-thread-detail-msg-title);
}

.thread-answer .answer-body__subheading {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin: 0;
  padding: 0.9375rem 0 0.75rem;
  padding-left: calc(var(--thread-detail-prose-px) - 4px);
  border-left: 4px solid var(--color-thread-detail-teal-strong);
  font-size: var(--font-size-base);
  font-weight: 900;
  line-height: 1.5;
  color: var(--color-thread-detail-prose);
  text-align: start;
}

.thread-answer .answer-body__section--message {
  box-sizing: border-box;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
  padding: var(--thread-detail-callout-py) var(--thread-detail-callout-px);
  background: var(--color-thread-detail-msg-bg);
  border: 1px solid var(--color-thread-detail-msg-border);
  border-radius: var(--radius-lg);
}

.thread-answer .answer-body__section--message .answer-body__heading {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.thread-answer .answer-body__section--message .answer-body__heading::before {
  content: "💬";
  flex-shrink: 0;
}

.thread-answer .answer-body__section--message .answer-body__content {
  color: var(--color-thread-detail-prose);
}

.thread-answer .thread-react-bar--inset {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin: 0;
  padding: var(--thread-detail-react-bar-py) 0;
  border-top: 1px solid var(--color-thread-detail-card-border);
  border-bottom: none;
}

.thread-answer .answer-actions {
  border-top: none;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.thread-answer .answer-actions .reaction-group {
  justify-content: center;
}

.thread-answer .answer-actions__note {
  text-align: center;
  width: 100%;
}

.thread-answer .answer-actions__secondary-row {
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

.thread-answer .answer-actions__report-wire {
  color: var(--color-thread-detail-muted);
  border-color: var(--color-border);
}

.thread-answer .answer-actions__report-wire:hover {
  border-color: var(--color-thread-detail-muted);
  color: var(--color-thread-detail-prose);
  background: color-mix(in srgb, var(--color-thread-detail-muted) 10%, transparent);
}

/* 2枚リボン（お礼 + お礼返し）: thread-answer では answer-body の indent がリセットされるため
   answer-body__section--message と同じ max-width + 中央寄せで幅を揃える。 */
.thread-answer .answer-actions__thanks-exchange {
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
}

/* 折りたたみ（2件目以降） */
.thread-answer--collapsible .answer-body__lead {
  position: relative;
  width: 100%;
}

.thread-answer--collapsible:not(.is-expanded) .answer-body__lead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6.75rem;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    color-mix(in srgb, var(--color-base-1) 45%, transparent) 28%,
    color-mix(in srgb, var(--color-base-1) 78%, transparent) 55%,
    color-mix(in srgb, var(--color-base-1) 94%, transparent) 78%,
    var(--color-base-1) 100%
  );
  pointer-events: none;
  z-index: 1;
}

.thread-answer--collapsible:not(.is-expanded) .answer-body__more-bar {
  position: relative;
  z-index: 2;
  margin-top: -4.25rem;
  padding-top: 0;
}

.thread-answer--collapsible.is-expanded .answer-body__more-bar {
  z-index: auto;
  margin-top: var(--space-4);
}

.thread-answer--collapsible .answer-body__more-btn {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 17rem;
  margin: 0 auto;
  padding: var(--space-2) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-teal-strong);
  cursor: pointer;
  box-shadow: var(--shadow-card);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--color-base-1) 35%, transparent),
    color-mix(in srgb, var(--color-base-1) 88%, transparent)
  );
}

.thread-answer--collapsible .answer-body__more-btn:hover {
  filter: brightness(0.98);
}

.thread-answer--collapsible .answer-body__more-btn:focus-visible {
  outline: 2px solid var(--color-thread-detail-teal-strong);
  outline-offset: 2px;
}

/* -----------------------------------------------------------------
   同じような悩み（モックのカード風）
   ----------------------------------------------------------------- */
.thread-detail-page .thread-similar {
  margin-top: var(--thread-detail-stack-gap);
  /* .mock-similar: padding は figma-detail-card-py のみ（横に card-px を足さない） */
  padding: var(--thread-detail-card-py);
  background: var(--color-base-1);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-figma-card);
  border: none;
}

.thread-bottom-cta + .thread-similar {
  margin-top: var(--thread-detail-stack-gap);
}

.thread-detail-page .thread-similar__title {
  margin: 0 0 var(--space-6);
  font-size: var(--font-size-xl);
  font-weight: 900;
  color: var(--color-thread-detail-prose);
}

.thread-detail-page .thread-similar__block + .thread-similar__block {
  margin-top: var(--space-8);
}

.thread-detail-page .thread-similar__heading {
  margin: 0 0 var(--space-3);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-prose);
}

.thread-detail-page .thread-similar__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
}

.thread-detail-page .thread-similar__tags .tag-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  background: var(--color-thread-detail-pill-hash-bg);
  color: var(--color-thread-detail-muted);
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.thread-detail-page .thread-similar__tags .tag-badge:hover {
  background: var(--color-border);
  color: var(--color-text-primary);
}

.thread-detail-page .thread-similar__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

@media (max-width: 768px) {
  .thread-detail-page .thread-similar__cards {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

/* 似ている悩み: カード内部は thread-card.css を共有し、詳細ページでは幅だけ整える */
.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__top-meta {
  max-width: 21.875rem;
  min-height: 2.375rem;
}

.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__meta--similar,
.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__title,
.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__excerpt,
.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__footer {
  max-width: 22.125rem;
}

.thread-detail-page .thread-similar__cards .thread-card--similar .thread-card__meta--similar {
  min-height: 3.9375rem;
}

/* -----------------------------------------------------------------
   下部固定エンゲージメントバー（html-chech .mock-sticky-bar）
   ----------------------------------------------------------------- */
.thread-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: color-mix(in srgb, var(--color-base-1) 92%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 2px solid var(--color-main);
  box-shadow:
    0 -10px 24px -6px color-mix(in srgb, var(--color-text-primary) 14%, transparent),
    0 -2px 6px color-mix(in srgb, var(--color-text-primary) 6%, transparent);
  transform: translateY(100%);
  transition:
    transform 0.35s ease-out,
    opacity 0.35s ease-out;
  opacity: 0;
  pointer-events: none;
}

.thread-sticky-bar.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.thread-sticky-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  max-width: var(--thread-detail-inner-max-width);
  margin-inline: auto;
  padding: var(--space-2) var(--space-4);
  min-height: 3.5rem;
  box-sizing: border-box;
}

.thread-sticky-bar__group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.thread-sticky-bar__sep {
  width: 1px;
  height: 1.5rem;
  background: var(--color-border);
  flex-shrink: 0;
}

/* コンパクトリアクション（メインの .thread-actions と同系統） */
.thread-sticky-bar .reaction-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.thread-sticky-bar .reaction-btn:hover:not(:disabled) {
  border-color: var(--color-main);
  color: var(--color-text-primary);
  background: color-mix(in srgb, var(--color-main) 6%, transparent);
}

.thread-sticky-bar .reaction-btn:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 2px;
}

.thread-sticky-bar .reaction-btn__icon-svg {
  display: inline-flex;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  color: inherit;
}

.thread-sticky-bar .reaction-btn__icon-svg svg {
  width: 100%;
  height: 100%;
  display: block;
}

.thread-sticky-bar .reaction-btn:not(.reaction-btn--active) .reaction-btn__icon-svg svg path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.thread-sticky-bar .reaction-btn--active .reaction-btn__icon-svg svg path {
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.thread-sticky-bar .reaction-btn__count {
  margin-left: 3px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

/* 読了アテンション pulse（リアクション3つを順次） */
@keyframes thread-react-attn-pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-main) 50%, transparent);
  }
  40% {
    transform: scale(1.08);
    box-shadow: 0 0 0 10px color-mix(in srgb, var(--color-main) 0%, transparent);
  }
}

.reaction-btn.is-attn-pulse {
  animation: thread-react-attn-pulse 0.6s ease-out 1;
}

@media (prefers-reduced-motion: reduce) {
  .reaction-btn.is-attn-pulse {
    animation: none;
  }
}

/* ============================================================
   エンゲージメントアテンション（T1: 画面に入った瞬間に1回発火）
   仕様: doc/ux-engagement-attention-spec.md
   - 体験談ごとに 3 ボタンを 80ms 時間差で順次発火（ウェーブ）
   - カウント数字も同時に scale + color が一瞬光る
   - 既存スティッキーバーの .is-attn-pulse とは別クラス
   ============================================================ */
.reaction-btn.is-engage-attn-reaction {
  animation: thread-react-attn-pulse 0.6s ease-out 1;
}

.reaction-btn.is-engage-attn-reaction .reaction-btn__count {
  display: inline-block;
  animation: wakuwaku-reaction-count-flash 400ms ease-out 1;
}

@keyframes wakuwaku-reaction-count-flash {
  0% {
    transform: scale(1);
    color: inherit;
  }
  50% {
    transform: scale(1.3);
    color: var(--color-main);
  }
  100% {
    transform: scale(1);
    color: inherit;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reaction-btn.is-engage-attn-reaction,
  .reaction-btn.is-engage-attn-reaction .reaction-btn__count {
    animation: none;
  }
}

/* 読了アテンションの吹き出し（バー上部にふわっと） */
.thread-sticky-bar__attn-bubble {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(8px);
  padding: 6px 12px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-base-1);
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition:
    opacity 0.25s ease-out,
    transform 0.25s ease-out;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--color-text-primary) 24%, transparent);
}

.thread-sticky-bar__attn-bubble::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -5px;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--color-text-primary);
}

.thread-sticky-bar__attn-bubble.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* お礼ポップオーバー（押下したリアクションボタンの直上） */
.reaction-thanks-pop {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px 6px 6px;
  background: var(--color-base-1);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--color-text-primary) 18%, transparent);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 6px);
  transition:
    opacity 0.2s ease-out,
    transform 0.2s ease-out;
  z-index: 100;
}

.reaction-thanks-pop::after {
  content: '';
  position: absolute;
  left: calc(50% + var(--arrow-offset-x, 0px));
  bottom: -5px;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: var(--color-base-1);
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.reaction-thanks-pop.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.reaction-thanks-pop__icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
}

.reaction-thanks-pop__text {
  display: inline-block;
}

@media (prefers-reduced-motion: reduce) {
  .reaction-thanks-pop,
  .thread-sticky-bar__attn-bubble {
    transition: none;
  }
}

.thread-sticky-bar__bookmark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 2.25rem;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-thread-detail-muted);
  cursor: pointer;
  flex-shrink: 0;
  font: inherit;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.thread-sticky-bar__bookmark-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  white-space: nowrap;
}

.thread-sticky-bar__bookmark:hover {
  color: var(--color-thread-detail-teal-strong);
  border-color: var(--color-thread-detail-teal-strong);
  background: color-mix(in srgb, var(--color-main) 6%, transparent);
}

.thread-sticky-bar__bookmark:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 2px;
}

.thread-sticky-bar__share-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-thread-detail-muted);
  white-space: nowrap;
}

/* SP 用の短縮ラベル（PC では非表示。SP メディアクエリで上書き表示）。 */
.thread-sticky-bar__bookmark-label--sp,
.thread-sticky-bar__share-label--sp {
  display: none;
}

/* シェアアイコン3つの wrapper。PC では display:contents で
   既存の .thread-sticky-bar__group--share フレックスに 3 つの <a> を
   そのまま並べる挙動を維持する（SP では block 化して横並びを保つ）。 */
.thread-sticky-bar__share-icons {
  display: contents;
}

.thread-sticky-bar__share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  min-height: 1.75rem;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.thread-sticky-bar__share-btn img {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  border-radius: var(--radius-full);
}

.thread-sticky-bar__share-btn:hover {
  transform: translateY(-1px);
  opacity: 0.85;
}

.thread-sticky-bar__share-btn:focus-visible {
  outline: 2px solid var(--color-main);
  outline-offset: 3px;
  border-radius: var(--radius-full);
}

@media (max-width: 640px) {
  /* SP: バー内は「ラベル上 / アイコン+カウント下」の縦積み2段。
     各グループはそれぞれの高さで縦中央に揃える（align-items: center）。
     stretch にするとシェア群（border 無し）が上端に張り付いてしまうため。 */
  .thread-sticky-bar__inner {
    gap: var(--space-2);
    min-height: 4rem;
    padding: var(--space-1) var(--space-3);
    align-items: center;
  }

  /* リアクションボタン（いいね/共感/学び）:
     flex-wrap で1行目=ラベル、2行目=アイコン+カウント。 */
  .thread-sticky-bar .reaction-btn {
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    gap: 0;
    padding: 4px 6px;
  }

  .thread-sticky-bar .reaction-btn__label {
    /* 既存の visually-hidden を解除して上段に表示 */
    position: static;
    flex-basis: 100%;
    order: -1;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0 0 2px;
    overflow: visible;
    clip: auto;
    white-space: nowrap;
    border: 0;
    text-align: center;
    font-size: 10px;
    line-height: 1.2;
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
  }

  /* ブックマーク:
     PC ラベル（「ブックマーク」「ブックマークする」「ブックマーク済み」）は
     visually hidden 維持（JS で動的に書き換わるため、テキスト自体は残す）。
     代わりに固定の SP 用短縮ラベル「ブクマ」を上段に表示する。 */
  .thread-sticky-bar__bookmark {
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    height: auto;
    min-height: 0;
    padding: 4px 8px;
    gap: 0;
  }

  .thread-sticky-bar__bookmark-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .thread-sticky-bar__bookmark-label--sp {
    display: block;
    flex-basis: 100%;
    order: -1;
    margin: 0 0 2px;
    text-align: center;
    font-size: 10px;
    line-height: 1.2;
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
    white-space: nowrap;
  }

  /* シェア群:
     PC は「この相談をシェア」+ アイコン3つの横並び。
     SP は「シェア」（短縮）を上段、アイコン3つを下段に横並びで配置する。 */
  .thread-sticky-bar__group--share {
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }

  .thread-sticky-bar__share-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .thread-sticky-bar__share-label--sp {
    display: block;
    text-align: center;
    font-size: 10px;
    line-height: 1.2;
    font-weight: var(--font-weight-normal);
    color: var(--color-text-secondary);
    white-space: nowrap;
  }

  /* PC では display:contents だが、SP では横並び flex に切り替える。 */
  .thread-sticky-bar__share-icons {
    display: flex;
    gap: var(--space-2);
    align-items: center;
  }

  .thread-sticky-bar__share-btn {
    width: 1.5rem;
    height: 1.5rem;
    min-height: 1.5rem;
  }

  .thread-sticky-bar__sep {
    height: 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .thread-sticky-bar {
    transition: none;
  }
}

/* -----------------------------------------------------------------
   レスポンシブ（質問カード）
   ----------------------------------------------------------------- */
@media (max-width: 640px) {
  .thread-breadcrumb {
    font-size: var(--font-size-2xs);
    color: var(--color-text-secondary);
  }

  .thread-breadcrumb a,
  .thread-breadcrumb__sep,
  .thread-breadcrumb__current {
    color: var(--color-text-secondary);
  }

  .thread-qcard {
    padding: var(--space-6) var(--space-4);
  }

  .thread-qcard__dates {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    font-size: var(--font-size-xs);
    width: 100%;
    text-align: right;
  }

  .thread-qcard__dates p + p {
    margin-top: 0;
  }

  .thread-qcard .thread-react-bar {
    gap: var(--space-3);
  }

  .thread-answers-head {
    min-height: 0;
  }

  .thread-answer__body {
    padding: var(--space-6) var(--space-4);
  }

  .thread-prose,
  .thread-qcard__author {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }

  .thread-answer .answer-card__meta {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }

  .thread-answer .answer-body__section:not(.answer-body__section--message) .answer-body__content {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }

  .thread-answer .answer-body__subheading {
    padding-left: max(0px, calc(var(--space-2) - 4px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .thread-bottom-cta__video {
    display: none;
  }

  .thread-bottom-cta {
    background: linear-gradient(170deg, #d1fae5 0%, #ecfdf5 35%, var(--color-best-answer-bg) 65%, var(--color-base-1) 100%);
  }
}

/* -----------------------------------------------------------------
   体験談詳細ページ（/threads/{id}/answers/{aid}/）
   - 引用カード風ヘッダー: 親スレへのコンテキストを脇役として提示
   - 体験談本体を主役にする視覚ヒエラルキー
   ----------------------------------------------------------------- */
.answer-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.answer-detail__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-main);
  background: var(--color-base-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.answer-detail__header-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
  flex: 1 1 auto;
}

.answer-detail__parent-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

.answer-detail__parent-icon {
  flex-shrink: 0;
  color: var(--color-main);
}

.answer-detail__parent-title {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text-primary);
  word-break: break-word;
}

.answer-detail__parent-title a {
  color: inherit;
  text-decoration: none;
}

.answer-detail__parent-title a:hover {
  text-decoration: underline;
}

.answer-detail__parent-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-main);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.15s ease;
}

.answer-detail__parent-link:hover {
  opacity: 0.7;
  text-decoration: underline;
}

.answer-detail__heading {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 800;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.answer-detail__body {
  margin: 0;
}

.answer-detail__back {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2);
}

@media (max-width: 640px) {
  .answer-detail__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .answer-detail__parent-link {
    align-self: flex-end;
  }

  .answer-detail__heading {
    font-size: var(--font-size-lg);
  }
}

/* ============================================================
   広告カード（ナビゲータ紹介型）を体験談カードと同じ体裁に揃える
   （.thread-answer--ad でラップして card 枠・左右マージン・中央寄せを共通化）
   ============================================================ */
/* カード領域全体をカテゴリ色の薄い塗り（約5%）にして体験談カードと差別化 */
.thread-answer--ad {
  --ad-cat-color: var(--color-featured-accent);
  background: color-mix(in srgb, var(--ad-cat-color) 5%, var(--color-base-1));
}

.thread-answer--ad[data-thread-cat="ningen"] {
  --ad-cat-color: var(--cat-ningen-text);
}

.thread-answer--ad[data-thread-cat="career"] {
  --ad-cat-color: var(--cat-career-text);
}

.thread-answer--ad[data-thread-cat="skill"] {
  --ad-cat-color: var(--cat-skill-text);
}

.thread-answer--ad[data-thread-cat="hataraki"] {
  --ad-cat-color: var(--cat-hataraki-text);
}

.thread-answer--ad[data-thread-cat="kachi"] {
  --ad-cat-color: var(--cat-kachi-text);
}

/* ラッパー側で塗るので内側カードは透明にする */
.thread-answer--ad .ad-card {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

/* 見出し: 体験談の本文列幅に収め、長い場合は折り返す（中央揃え・色は広告アクセント維持）。
   タイトルとナビゲータ行の縦余白を広めに取る。 */
.thread-answer--ad .ad-card__title {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin: 0 auto;
  padding: var(--thread-detail-title-block-py) var(--thread-detail-prose-px) var(--space-8);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
}

/* ナビゲータ行: 体験談カードの著者メタと同じ列幅・左右パディングに揃える。
   サムネアイコン下〜導入文の間に約1行分の余白を確保する。 */
.thread-answer--ad .ad-card__navi {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin: 0 auto var(--space-6);
  padding: 0 var(--thread-detail-prose-px);
}

/* サムネアイコンのサイズを著者アバター（50px）に合わせる */
.thread-answer--ad .ad-card__avatar {
  width: 50px;
  height: 50px;
}

/* リード・ボタン・本文: 体験談本文と同じ列幅・左右パディング・行間に揃える（展開時も維持） */
.thread-answer--ad .ad-card__lead,
.thread-answer--ad .ad-card__action,
.thread-answer--ad .ad-card__body {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--thread-detail-prose-column-max);
  margin-left: auto;
  margin-right: auto;
}

.thread-answer--ad .ad-card__lead {
  padding: 0 var(--thread-detail-prose-px);
  font-size: var(--font-size-base);
  line-height: var(--thread-detail-prose-line);
  text-align: start;
}

/* アコーディオン用ボタン: 前後の余白を広めに取る（下はさらに1行分多く） */
.thread-answer--ad .ad-card__action {
  margin-top: var(--space-8);
  margin-bottom: var(--space-12);
}

/* 上部「閉じる」ボタンは直下が本文先頭になるため、下マージンを詰める
   （本文先頭の --ad-body-top-gap と二重がけになり空きすぎるのを防ぐ）。 */
.thread-answer--ad .ad-card__action--close-top {
  margin-bottom: var(--space-2);
}

/* 本文: 体験談本文と同じ左右パディング・行間。背景は白（網掛けは h2 のみ）。
   先頭は3行分の余白（--ad-body-top-gap）を維持して詰まりを防ぐ。 */
.thread-answer--ad .ad-card__body {
  padding: var(--ad-body-top-gap) var(--thread-detail-prose-px) 0;
  background: transparent;
  font-size: var(--font-size-base);
  line-height: var(--thread-detail-prose-line);
  color: var(--color-thread-detail-prose);
}

/* スマホ: 広告カードの左右余白を体験談エリアと同じ（space-2）に揃える。
   ※ 上の prose-px 指定より後方に置き、同詳細度で確実に後勝ちさせる
   （縦方向の余白は各基本ルールの値を維持し、左右だけ上書き）。 */
@media (max-width: 640px) {
  .thread-answer--ad .ad-card__title,
  .thread-answer--ad .ad-card__navi,
  .thread-answer--ad .ad-card__lead,
  .thread-answer--ad .ad-card__action,
  .thread-answer--ad .ad-card__body {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
  }
}