/* ============================================================
   前台部落格樣式（沿用全站 v2 變數，僅補必要樣式）
   調色：--color-bg / --color-nav / --color-btn / --color-w100 / --color-w65 ...
   文章內文( .article-body )只保留容器基本可讀性；h2/h3/p/a/img… 逐元素排版不在此提供，由後台「CSS 編輯器」自由設定。
   ============================================================ */
/* 寬度比照首頁（.content_all 最大 1600px） */
.blog-wrap { max-width: 1600px; margin: 0 auto; padding: 22px 16px 64px; color: var(--color-w100); }

/* 麵包屑 */
.blog-breadcrumb { font-size: 13px; color: var(--color-w65); margin-bottom: 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.blog-breadcrumb a { color: var(--color-w65); text-decoration: none; }
.blog-breadcrumb a:hover { color: var(--color-btn); }
.blog-breadcrumb .sep { color: var(--color-w25); }
.blog-breadcrumb .cur { color: var(--color-w100); }

/* 列表頁標題區 */
.blog-archive-hd { margin-bottom: 24px; }
.blog-eyebrow { display: inline-block; font-size: 12px; letter-spacing: 2px; color: var(--color-btn); font-weight: 700; }
.blog-archive-title { font-size: 30px; font-weight: 800; margin: 6px 0 8px; color: var(--color-w100); }
.blog-archive-desc { color: var(--color-w65); font-size: 15px; line-height: 1.7; max-width: 760px; }

/* 雙欄版型：側欄在左、主內容在右 */
.blog-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 28px; align-items: start; }
.blog-main { min-width: 0; }
/* 列表/分類/標籤：側欄置左 */
.blog-layout:not(.blog-layout-single) .blog-side { order: -1; }
/* 文章單頁：左欄上方放目錄、下方放其餘側欄；主內容在右 */
.blog-layout-single { grid-template-areas: "toc main" "side main"; grid-template-rows: auto 1fr; }
.blog-layout-single .blog-toc-wrap { grid-area: toc; }
.blog-layout-single .blog-main { grid-area: main; }
.blog-layout-single .blog-side { grid-area: side; }

/* 卡片網格 */
.blog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.blog-grid.related { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.blog-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* 首篇大卡：左圖右文 */
.blog-card-feature { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); margin-bottom: 20px; }
.blog-card-feature .blog-card-cover { aspect-ratio: auto; height: 100%; min-height: 340px; }
.blog-card-feature .blog-card-body { display: flex; flex-direction: column; justify-content: center; padding: 22px 26px; }
.blog-card-feature .blog-card-title { font-size: 22px; }
.blog-card-feature .blog-card-excerpt { -webkit-line-clamp: 3; font-size: 14.5px; }
.blog-card { background: linear-gradient(160deg, #1c1c26, var(--color-nav)); border-radius: 14px; overflow: hidden; box-shadow: inset 0 1px 2px rgba(255, 255, 255, .08), 0 6px 16px rgba(0, 0, 0, .45); transition: transform .25s ease, box-shadow .25s ease; }
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(0, 0, 0, .55); }
.blog-card-cover { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; }
.blog-card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.blog-card:hover .blog-card-cover img { transform: scale(1.06); }
.blog-card-cat { position: absolute; left: 10px; top: 10px; background: var(--color-btn); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 20px; }
.blog-card-body { padding: 14px 16px 16px; }
.blog-card-meta { display: flex; gap: 14px; font-size: 12px; color: var(--color-w65); margin-bottom: 8px; }
.blog-card-title { font-size: 17px; font-weight: 700; line-height: 1.45; margin: 0 0 8px; }
.blog-card-title a { color: var(--color-w100); text-decoration: none; }
.blog-card-title a:hover { color: var(--color-btn); }
.blog-card-excerpt { font-size: 13.5px; line-height: 1.7; color: var(--color-w65); margin: 0 0 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.blog-card-more { font-size: 13px; font-weight: 600; color: var(--color-btn); text-decoration: none; }
.blog-card-more i { transition: transform .25s ease; }
.blog-card-more:hover i { transform: translateX(4px); }

/* 分頁 */
.blog-pager { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 30px; }
.blog-pg { min-width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; padding: 0 10px; border-radius: 10px; background: var(--color-nav); color: var(--color-w65); text-decoration: none; font-size: 14px; box-shadow: inset 0 1px 2px rgba(255, 255, 255, .07); }
.blog-pg:hover { color: #fff; background: linear-gradient(135deg, var(--color-btn), rgba(0, 0, 0, .3)); }
.blog-pg.cur { color: #fff; background: var(--color-btn); font-weight: 700; }

/* 空狀態 / 404 */
.blog-empty { text-align: center; padding: 60px 20px; color: var(--color-w65); background: var(--color-nav); border-radius: 14px; }
.blog-empty i { font-size: 44px; color: var(--color-w25); display: block; margin-bottom: 14px; }
.blog-empty p { margin: 0 0 16px; }
.blog-404 h1 { font-size: 24px; color: var(--color-w100); margin: 0 0 10px; }
.blog-btn { display: inline-block; background: var(--color-btn); color: #fff; padding: 10px 22px; border-radius: 10px; text-decoration: none; font-weight: 700; border: none; cursor: pointer; }
.blog-btn:hover { filter: brightness(1.1); color: #fff; }

/* ── 文章單頁 ── */
.blog-preview-tip { background: var(--color-r19); border: 1px solid var(--color-r67); color: #ffd; padding: 10px 14px; border-radius: 10px; font-size: 13px; margin-bottom: 16px; }
.blog-article { background: linear-gradient(160deg, #1c1c26, var(--color-nav)); border-radius: 16px; padding: 28px 30px; box-shadow: inset 0 1px 2px rgba(255, 255, 255, .08), 0 6px 16px rgba(0, 0, 0, .4); }
.blog-article-cat { display: inline-block; background: var(--color-btn); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 20px; text-decoration: none; margin-bottom: 12px; }
.blog-article-title { font-size: 30px; font-weight: 800; line-height: 1.35; margin: 0 0 14px; color: var(--color-w100); }
.blog-article-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: var(--color-w65); padding-bottom: 18px; border-bottom: 1px solid var(--color-w10); }
.blog-article-cover { margin: 22px 0; }
.blog-article-cover img { width: 100%; max-width: 100%; height: auto; border-radius: 12px; display: block; }

/* 內文容器（.article-body）：僅保留最基本可讀性；
   h2/h3/p/a/img… 等逐元素排版「不在此提供」，交由後台「CSS 編輯器」自由設定 */
.article-body { color: var(--color-w100); font-size: 16px; line-height: 1.9; word-wrap: break-word; padding-top: 22px; }

/* 標籤 */
.blog-article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--color-w10); color: var(--color-w65); font-size: 13px; }
.blog-article-tags a { color: var(--color-w65); background: var(--color-w10); padding: 4px 12px; border-radius: 20px; text-decoration: none; }
.blog-article-tags a:hover { color: #fff; background: var(--color-btn); }

/* 密碼鎖 */
.blog-locked { text-align: center; padding: 40px 20px; }
.blog-locked > i { font-size: 40px; color: var(--color-btn); margin-bottom: 14px; }
.blog-locked p { color: var(--color-w65); margin: 0 0 14px; }
.blog-locked-err { color: #ff6b6b !important; }
.blog-locked input { background: var(--color-bg); border: 1px solid var(--color-w18); color: #fff; padding: 10px 14px; border-radius: 10px; margin-right: 8px; }

/* 上一篇 / 下一篇 */
.blog-postnav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.blog-postnav-item { background: var(--color-nav); border-radius: 12px; padding: 14px 18px; text-decoration: none; display: flex; flex-direction: column; gap: 6px; box-shadow: inset 0 1px 2px rgba(255, 255, 255, .06); }
.blog-postnav-item.empty { background: transparent; box-shadow: none; }
.blog-postnav-item .dir { font-size: 12px; color: var(--color-btn); font-weight: 700; }
.blog-postnav-item .t { font-size: 14px; color: var(--color-w100); line-height: 1.5; }
.blog-postnav-item.next { text-align: right; }
.blog-postnav-item:hover .t { color: var(--color-btn); }

/* 相關文章 */
.blog-related { margin-top: 36px; }
.blog-related-hd { font-size: 20px; font-weight: 800; margin: 0 0 16px; color: var(--color-w100); }

/* ── 側邊欄（複刻首頁深色面板） ── */
.blog-side { display: flex; flex-direction: column; gap: 18px; }
.blog-panel { background: linear-gradient(160deg, #121218, var(--color-nav)); border-radius: 12px; padding: 16px 16px; box-shadow: inset 0 1px 2px rgba(255, 255, 255, .1), 0 4px 10px rgba(0, 0, 0, .6); }
.blog-panel-hd { font-size: 15px; font-weight: 700; color: var(--color-w100); padding-bottom: 12px; margin-bottom: 10px; border-bottom: 1px solid var(--color-w10); }
.blog-panel-hd i { color: var(--color-btn); margin-right: 6px; }

/* 搜尋 */
.blog-search { display: flex; gap: 8px; }
.blog-search input { flex: 1; min-width: 0; background: var(--color-bg); border: 1px solid var(--color-w18); color: #fff; padding: 9px 12px; border-radius: 9px; font-size: 14px; }
.blog-search button { background: var(--color-btn); border: none; color: #fff; width: 40px; border-radius: 9px; cursor: pointer; }

/* 最新文章 */
.blog-recent { list-style: none; margin: 0; padding: 0; }
.blog-recent li { margin-bottom: 12px; }
.blog-recent li:last-child { margin-bottom: 0; }
.blog-recent a { display: flex; gap: 10px; text-decoration: none; align-items: center; }
.blog-recent img { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; flex: 0 0 56px; }
.blog-recent-tx { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.blog-recent-title { font-size: 13.5px; color: var(--color-w100); line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.blog-recent a:hover .blog-recent-title { color: var(--color-btn); }
.blog-recent-date { font-size: 11.5px; color: var(--color-w65); }

/* 分類樹 */
.blog-cattree { list-style: none; margin: 0; padding: 0; }
.blog-cattree .blog-cattree { padding-left: 14px; margin-top: 4px; border-left: 1px solid var(--color-w10); }
.blog-cattree li { margin: 4px 0; }
.blog-cattree a { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 8px; text-decoration: none; color: var(--color-w65); font-size: 13.5px; background: linear-gradient(160deg, #1c1c26, var(--color-nav)); box-shadow: inset 0 1px 2px rgba(255, 255, 255, .06); transition: transform .25s ease, background .25s ease; }
.blog-cattree a:hover, .blog-cattree a.active { color: #fff; background: linear-gradient(135deg, var(--color-btn), rgba(0, 0, 0, .3)); transform: translateX(4px); }
.blog-cattree em { font-style: normal; font-size: 11px; color: var(--color-w65); background: var(--color-b44); padding: 1px 8px; border-radius: 20px; }
.blog-cattree a:hover em, .blog-cattree a.active em { color: #fff; }

/* 目錄 TOC（可收合） */
.blog-toc-head { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 0; background: none; border: none; cursor: pointer; color: var(--color-w100); font-size: 15px; font-weight: 700; font-family: inherit; }
.blog-toc-head > span > i { color: var(--color-btn); margin-right: 6px; }
.blog-toc-caret { color: var(--color-w65); transition: transform .25s ease; }
.blog-toc-wrap.collapsed .blog-toc-caret { transform: rotate(-90deg); }
.blog-toc-wrap .blog-toc-nav { margin-top: 12px; }
.blog-toc-wrap.collapsed .blog-toc-nav { display: none; }
.blog-toc-nav { display: flex; flex-direction: column; gap: 2px; max-height: 60vh; overflow: auto; }
.blog-toc-link { color: var(--color-w65); text-decoration: none; font-size: 13.5px; padding: 6px 10px; border-radius: 7px; border-left: 2px solid transparent; line-height: 1.4; }
.blog-toc-link.lv-h3 { padding-left: 22px; font-size: 12.5px; }
.blog-toc-link:hover { color: #fff; background: var(--color-w10); }

/* ── RWD ── */
@media (max-width: 992px) {
    .blog-layout { grid-template-columns: 1fr; }
    .blog-layout:not(.blog-layout-single) .blog-side { order: 1; }   /* 列表：主內容在上、側欄在下 */
    /* 文章單頁：目錄置頂 → 文章 → 其餘側欄 */
    .blog-layout-single { grid-template-areas: "toc" "main" "side"; grid-template-rows: auto auto auto; }
    .blog-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
    /* 首篇大卡改上圖下文 */
    .blog-card-feature { grid-template-columns: 1fr; }
    .blog-card-feature .blog-card-cover { aspect-ratio: 16 / 9; min-height: 0; }
    .blog-card-feature .blog-card-body { padding: 14px 16px 16px; }
    .blog-card-feature .blog-card-title { font-size: 18px; }
}
@media (max-width: 640px) {
    .blog-grid, .blog-grid.related, .blog-grid-3 { grid-template-columns: 1fr; }
    .blog-archive-title { font-size: 24px; }
    .blog-article { padding: 20px 18px; }
    .blog-article-title { font-size: 23px; }
    .blog-postnav { grid-template-columns: 1fr; }
    .blog-postnav-item.next { text-align: left; }
}