/* ==========================================================================
   article.css - 記事詳細ページ
   ========================================================================== */

.page-article {
  background-color: #f4f6f9;
}

/* --------------------------------------------------------------------------
   ヘッダー（紺背景）
   -------------------------------------------------------------------------- */

.article-site-header {
  background-color: var(--c-navy-900);
}

.article-header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 72px;
  padding-block: 10px;
}

.article-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.article-brand-logo img {
  height: 44px;
  width: auto;
}

.article-brand-tagline {
  font-size: 11px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.82);
  white-space: nowrap;
}

.article-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.article-nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2px;
}

.article-nav-list a {
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  white-space: nowrap;
}

.article-nav-list a.is-active,
.article-nav-list .current-menu-item > a {
  font-weight: 700;
  text-decoration: underline;
}

.article-nav-list a:hover {
  color: var(--c-white);
  opacity: 0.85;
}

.article-header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.article-search-btn {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  font-size: 16px;
  color: var(--c-white);
}

.article-search-btn:hover {
  opacity: 0.8;
}

.article-login-btn {
  padding: 7px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--c-white);
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-sm);
}

.article-login-btn:hover {
  color: var(--c-navy-900);
  background-color: var(--c-white);
}

.article-menu-btn {
  display: none;
  place-items: center;
  width: 36px;
  height: 36px;
  font-size: 18px;
  color: var(--c-white);
}

/* --------------------------------------------------------------------------
   パンくず
   -------------------------------------------------------------------------- */

.breadcrumb {
  padding: 12px 0;
  background-color: var(--c-white);
  border-bottom: 1px solid var(--c-line);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--c-text-mute);
}

.breadcrumb-list li + li::before {
  content: ">";
  margin-right: 6px;
  color: var(--c-text-mute);
}

.breadcrumb-list a {
  color: var(--c-text-sub);
}

.breadcrumb-list a:hover {
  color: var(--c-blue-600);
  text-decoration: underline;
}

.breadcrumb-list li[aria-current="page"] {
  color: var(--c-text-mute);
}

/* --------------------------------------------------------------------------
   記事コンテナ（メイン + サイドバー）
   -------------------------------------------------------------------------- */

.article-main {
  padding-block: 24px 48px;
}

.article-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--col-right);
  gap: var(--gap);
  align-items: start;
  max-width: var(--container);
}

.article-entry {
  overflow: hidden;
  background-color: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.sidebar-article {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  position: sticky;
  top: 16px;
}

/* --------------------------------------------------------------------------
   記事 FV（タイトル → 日付 → アイキャッチ）
   -------------------------------------------------------------------------- */

.article-fv {
  padding: 28px 32px 24px;
  border-bottom: 1px solid var(--c-line);
}

.article-fv-category {
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 700;
}

.article-fv-category a {
  color: var(--c-blue-600);
}

.article-fv-category a:hover {
  text-decoration: underline;
}

.article-fv-title {
  font-size: 28px;
  font-weight: 900;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.article-fv-date {
  margin-top: 12px;
  font-size: 13px;
  color: var(--c-text-sub);
}

.article-fv-date time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-fv-date i {
  font-size: 14px;
  color: var(--c-text-mute);
}

.article-fv-media {
  margin: 20px 0 0;
}

.article-fv-media img {
  width: 100%;
  aspect-ratio: 960 / 411;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.article-addendum {
  margin-top: 20px;
  padding: 16px 18px;
  border: 2px solid var(--c-navy-800);
  border-radius: var(--radius-sm);
}

.article-addendum-title {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 900;
  color: var(--c-navy-900);
}

.article-addendum-body {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text);
}

.article-addendum-body p + p {
  margin-top: 0.75em;
}

.article-fv-tags {
  margin-top: 18px;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-tags li {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.article-tags i {
  font-size: 11px;
  color: var(--c-text-mute);
}

.article-tags a {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--c-text-sub);
  background-color: #eef1f5;
  border-radius: 999px;
}

.article-tags a:hover {
  color: var(--c-navy-800);
  background-color: #e2e8f0;
}

/* --------------------------------------------------------------------------
   記事本文
   -------------------------------------------------------------------------- */

.article-body {
  padding: 28px 32px 40px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--c-text);
}

.article-body > p + p {
  margin-top: 1.2em;
}

.article-body :is(ul, ol).wp-block-list,
.article-body :is(.point-box-body, .kyoutei-info-box__body, .kyoutei-info-box__content, .kyoutei-quote-box__body) :is(ul, ol),
.article-body > :is(ul, ol):not(.article-tags):not(.kyoutei-toc__list) {
  margin: 1em 0;
  padding-left: 1.6em;
}

.article-body :is(ul, ol).wp-block-list,
.article-body :is(.point-box-body, .kyoutei-info-box__body, .kyoutei-info-box__content, .kyoutei-quote-box__body) ul,
.article-body > ul:not(.article-tags):not(.kyoutei-toc__list) {
  list-style: disc;
}

.article-body :is(ul, ol).wp-block-list ol,
.article-body :is(.point-box-body, .kyoutei-info-box__body, .kyoutei-info-box__content, .kyoutei-quote-box__body) ol,
.article-body > ol:not(.kyoutei-toc__list) {
  list-style: decimal;
}

.article-body :is(ul, ol) li + li {
  margin-top: 0.35em;
}

.article-body :is(ul, ol) li > :is(ul, ol) {
  margin-top: 0.35em;
}

.article-h2 {
  position: relative;
  margin-top: 36px;
  margin-bottom: 18px;
  padding-left: 16px;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--c-text);
}

.article-h2::before {
  content: "";
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: 0;
  width: 5px;
  background-color: var(--c-blue-600);
  border-radius: 2px;
}

.article-body > .article-h2:first-child {
  margin-top: 0;
}

/* --------------------------------------------------------------------------
   会話UI
   -------------------------------------------------------------------------- */

.chat-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 28px 0;
}

.chat-row {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 12px;
  max-width: 92%;
}

.chat-row-left {
  align-self: flex-start;
  flex-direction: row;
}

.chat-row-right {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-avatar {
  flex: 0 0 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  text-align: center;
}

.chat-avatar img {
  width: 56px;
  height: 56px;
  margin-inline: auto;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--c-line);
  border-radius: 50%;
}

.chat-name {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-text-sub);
}

.chat-name small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  color: var(--c-text-mute);
}

.chat-bubble {
  position: relative;
  flex: 1;
  min-width: 0;
  padding: 14px 18px;
  font-size: 14px;
  line-height: 1.75;
  border-radius: 12px;
  border: 1px solid var(--chat-bubble-border, #dde2e8);
  background-color: var(--chat-bubble-bg, #f0f2f5);
}

.chat-bubble--hakase {
  --chat-bubble-bg: #fdeef4;
  --chat-bubble-border: #f5c6dc;
}

.chat-bubble--assistant {
  --chat-bubble-bg: var(--c-blue-050);
  --chat-bubble-border: var(--c-blue-100);
}

.chat-bubble p + p {
  margin-top: 0.8em;
}

.chat-bubble br {
  display: block;
  margin-bottom: 0.4em;
  content: "";
}

.chat-bubble-left {
  border-top-left-radius: 4px;
}

.chat-bubble-left::before {
  content: "";
  position: absolute;
  top: 18px;
  left: -8px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-right: 8px solid var(--chat-bubble-border, #dde2e8);
}

.chat-bubble-left::after {
  content: "";
  position: absolute;
  top: 19px;
  left: -6px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 7px solid var(--chat-bubble-bg, #f0f2f5);
}

.chat-bubble-right {
  border-top-right-radius: 4px;
}

.chat-bubble-right::before {
  content: "";
  position: absolute;
  top: 18px;
  right: -8px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 8px solid var(--chat-bubble-border, #dde2e8);
}

.chat-bubble-right::after {
  content: "";
  position: absolute;
  top: 19px;
  right: -6px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 7px solid var(--chat-bubble-bg, #f0f2f5);
}

/* --------------------------------------------------------------------------
   ポイントボックス
   -------------------------------------------------------------------------- */

.point-box {
  margin: 32px 0;
  overflow: hidden;
  background-color: #f2f7fc;
  border: 1px solid #b8d4ef;
  border-radius: var(--radius);
}

.point-box-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
  background-color: var(--c-navy-800);
  border-radius: 0 0 var(--radius-sm) 0;
}

.point-box-label i {
  font-size: 15px;
}

.point-box-body {
  display: flex;
  gap: 14px;
  padding: 18px 22px 22px;
}

.point-box-body p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text);
}

.point-box-body strong {
  font-weight: 700;
  color: var(--c-navy-900);
}

/* --------------------------------------------------------------------------
   記事ページ レスポンシブ
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .article-brand-tagline {
    display: none;
  }

  .article-nav-list a {
    padding-inline: 8px;
    font-size: 12px;
  }
}

@media (max-width: 900px) {
  .article-header-inner {
    justify-content: space-between;
  }

  .article-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    display: none;
    background-color: var(--c-navy-900);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .article-nav.is-open {
    display: block;
  }

  .article-nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0;
  }

  .article-nav-list a {
    padding: 12px 20px;
  }

  .article-login-btn {
    display: none;
  }

  .article-menu-btn {
    display: grid;
  }

  .article-site-header {
    position: relative;
  }
}

@media (max-width: 1024px) {
  .article-page-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar-article {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .widget-search {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .article-fv {
    padding: 20px 18px 18px;
  }

  .article-fv-title {
    font-size: 21px;
  }

  .sidebar-article {
    grid-template-columns: minmax(0, 1fr);
  }

  .article-body {
    padding: 22px 18px 32px;
    font-size: 14px;
  }

  .article-h2 {
    font-size: 18px;
  }

  .chat-row {
    max-width: 100%;
  }

  .chat-row-right {
    flex-direction: row-reverse;
  }
}

@media (max-width: 560px) {
  .article-brand-logo img {
    height: 36px;
  }

  .chat-avatar {
    width: 60px;
  }

  .chat-avatar img {
    width: 48px;
    height: 48px;
  }

  .chat-bubble {
    padding: 12px 14px;
    font-size: 13px;
  }
}