/* ============================================
   I Ching Wisdom - Blog Styles (Premium)
   ============================================ */

/* ---------- Blog Listing Page ---------- */
.blog-page { padding-top: 100px; min-height: 100vh; }
.blog-hero {
  text-align: center; padding: 72px 24px 48px;
  background: transparent;
  border-bottom: 1px solid var(--glass-border); position: relative;
}
.blog-hero::after {
  content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 120px; height: 2px;
  background: var(--text-primary);
}
.blog-hero h1 {
  font-size: 2.8rem;
  color: var(--text-primary);
  margin-bottom: 12px; letter-spacing: -0.5px;
}
.blog-hero p { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* ---------- Blog Stats Overview ---------- */
.blog-stats {
  max-width: 780px; margin: 0 auto; padding: 32px 24px 12px;
}
.stats-grid {
  display: flex; justify-content: center; gap: 48px;
  flex-wrap: wrap; margin-bottom: 24px;
}
.stat-card { text-align: center; min-width: 90px; }
.stat-number {
  display: block; font-size: 2.4rem; font-weight: 800; color: var(--text-primary);
  letter-spacing: -1.5px; line-height: 1.1;
}
.stat-label { display: block; font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; letter-spacing: 1px; text-transform: uppercase; }
.stats-categories {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 0;
  color: var(--text-muted); font-size: 0.78rem;
}
.cat-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 0; font-size: 0.78rem; color: var(--text-secondary);
  letter-spacing: 1px; text-transform: uppercase;
}
.cat-tag [data-filter] {
  cursor: pointer; transition: color 0.2s;
  padding: 2px 0;
}
.cat-tag [data-filter]:hover { color: var(--text-primary); }
.cat-tag [data-filter].active { color: var(--text-primary); font-weight: 600; }
.cat-tag.cat-all { cursor: pointer; transition: color 0.2s; }
.cat-tag.cat-all:hover { color: var(--text-primary); }
.cat-tag.cat-all.active { color: var(--text-primary); font-weight: 600; }
.cat-tag .sep { color: var(--glass-border); margin: 0 10px; font-weight: 300; pointer-events: none; }
.cat-tag em { font-style: normal; color: var(--text-muted); font-size: 0.72rem; text-transform: none; letter-spacing: 0; pointer-events: none; }

.blog-list article.filtered-out {
  display: none;
}

.blog-list {
  max-width: 780px; margin: 0 auto; padding: 40px 24px 80px;
  display: flex; flex-direction: column;
}
.blog-list article {
  padding: 22px 0; border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition);
}
.blog-list article:last-child { border-bottom: none; }
.blog-list article:hover { padding-left: 8px; }
.blog-list .list-category {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px;
  color: var(--text-secondary); font-weight: 700; margin-bottom: 6px; display: inline-block;
}
.blog-list .list-title {
  font-size: 1.2rem; font-weight: 600; margin-bottom: 6px; line-height: 1.4;
}
.blog-list .list-title a { color: var(--text-primary); }
.blog-list .list-title a:hover { opacity: 0.65; }
.blog-list .list-excerpt {
  color: var(--text-secondary); font-size: 0.9rem; line-height: 1.55;
  margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.blog-list .list-meta { font-size: 0.78rem; color: var(--text-muted); }
.blog-list .list-meta span { margin-right: 16px; }

/* ---------- Single Blog Post ---------- */
.post-page { padding-top: 100px; }
.post-container { max-width: 820px; margin: 0 auto; padding: 0 24px 80px; }
.post-header { text-align: center; margin-bottom: 44px; }
.post-category {
  display: inline-block; font-size: 0.78rem; text-transform: uppercase;
  letter-spacing: 2.5px; color: var(--text-secondary); margin-bottom: 14px; font-weight: 700;
}
.post-header h1 {
  font-size: 2.6rem; color: var(--text-primary); margin-bottom: 18px; line-height: 1.3;
}
.post-meta { display: flex; justify-content: center; gap: 28px; color: var(--text-muted); font-size: 0.9rem; }

.post-featured-image {
  height: 280px; background: rgba(0,0,0,0.02);
  border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center;
  font-size: 5rem; margin-bottom: 44px;
  border: 1px solid var(--glass-border);
}

.post-content { color: var(--text-primary); font-size: 1.08rem; line-height: 1.95; }
.post-content h2 {
  font-size: 1.7rem;
  color: var(--text-primary);
  margin-top: 48px; margin-bottom: 18px; padding-bottom: 10px;
  border-bottom: 1px solid var(--glass-border);
}
.post-content h3 { font-size: 1.3rem; color: var(--text-primary); margin-top: 32px; margin-bottom: 14px; }
.post-content p { margin-bottom: 20px; color: var(--text-secondary); }
.post-content ul, .post-content ol { margin-bottom: 20px; padding-left: 26px; color: var(--text-secondary); }
.post-content li { margin-bottom: 10px; }
.post-content strong { color: var(--text-primary); }
.post-content blockquote {
  border-left: 3px solid var(--text-primary); padding: 18px 28px; margin: 28px 0;
  background: rgba(0,0,0,0.02); border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary); font-style: italic; font-size: 1.05rem;
}
.post-content .key-point {
  background: rgba(0,0,0,0.03);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 22px 28px; margin: 28px 0;
}
.post-content .key-point strong { color: var(--text-primary); }
.post-content table { color: var(--text-secondary); }

/* ---------- Ad Container ---------- */
.ad-container { max-width: 820px; margin: 0 auto 48px; padding: 0 24px; }
.ad-slot {
  background: var(--glass-bg); backdrop-filter: blur(8px);
  border: 1px dashed var(--glass-border); border-radius: var(--radius-md);
  min-height: 90px; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 3px;
}
.ad-inline { margin: 28px auto; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { max-width: 820px; margin: 0 auto 28px; padding: 0 24px; font-size: 0.85rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { opacity: 0.65; }
.breadcrumb span { margin: 0 8px; opacity: 0.4; }

/* ---------- Related Posts ---------- */
.related-posts { max-width: 820px; margin: 0 auto; padding: 0 24px 72px; }
.related-posts h3 { font-size: 1.3rem; color: var(--text-primary); margin-bottom: 22px; text-align: center; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }
.related-card {
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 22px; transition: all var(--transition); text-decoration: none; display: block;
}
.related-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.related-card .related-emoji { font-size: 2rem; display: block; margin-bottom: 12px; }
.related-card h4 { font-size: 0.95rem; color: var(--text-primary); margin-bottom: 6px; }
.related-card p { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Newsletter ---------- */
.newsletter {
  background: rgba(0,0,0,0.02);
  border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border);
  padding: 64px 24px; text-align: center; margin: 64px 0;
}
.newsletter h3 { font-size: 1.5rem; color: var(--text-primary); margin-bottom: 8px; }
.newsletter p { color: var(--text-secondary); margin-bottom: 22px; }
.newsletter-form { display: flex; max-width: 450px; margin: 0 auto; gap: 10px; }
.newsletter-form input {
  flex: 1; padding: 13px 18px;
  background: #fff; border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md); color: var(--text-primary); font-size: 0.95rem;
}
.newsletter-form input:focus { outline: none; border-color: var(--text-primary); }
.newsletter-form button {
  padding: 13px 26px; background: var(--text-primary);
  color: #fff; border: none; border-radius: var(--radius-md);
  font-weight: 700; cursor: pointer; font-size: 0.9rem; transition: all var(--transition);
}
.newsletter-form button:hover { background: #333; }

/* ---------- Static Pages ---------- */
.static-page { padding-top: 100px; }
.static-content { max-width: 780px; margin: 0 auto; padding: 0 24px 80px; }
.static-content h1 {
  font-size: 2.4rem;
  color: var(--text-primary);
  margin-bottom: 36px; text-align: center;
}
.static-content h2 { font-size: 1.4rem; color: var(--text-primary); margin-top: 36px; margin-bottom: 14px; }
.static-content p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 18px; }
.static-content ul { color: var(--text-secondary); padding-left: 24px; margin-bottom: 18px; }
.static-content ul li { margin-bottom: 8px; }
.static-content a { color: var(--text-primary); }

/* ---------- About Author Page ---------- */
.about-author-page .static-content { max-width: 820px; }

.author-header {
  text-align: center; margin-bottom: 44px; padding-bottom: 36px;
  border-bottom: 1px solid var(--glass-border);
}
.author-avatar {
  width: 100px; height: 100px; margin: 0 auto 20px;
  border-radius: 50%; background: rgba(0,0,0,0.03);
  border: 2px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.author-avatar:hover {
  border-color: var(--text-primary);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.avatar-symbol { font-size: 2.8rem; }

.author-header h1 {
  font-size: 2.2rem; margin-bottom: 8px; text-align: center;
}
.author-zh {
  font-size: 1.6rem; color: var(--text-secondary); font-weight: 400;
  margin-left: 10px; font-family: 'STKaiti','KaiTi','Microsoft YaHei',serif;
}
.author-tagline {
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  letter-spacing: 0.5px; margin-bottom: 6px; text-align: center;
}
.author-subtitle {
  color: var(--text-muted); font-size: 0.85rem; font-style: italic; text-align: center;
}

.static-content blockquote {
  border-left: 3px solid var(--text-primary); padding: 22px 28px; margin: 32px 0;
  background: rgba(0,0,0,0.015); border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
}
.static-content blockquote p {
  font-style: italic; font-size: 1.1rem; margin-bottom: 10px; color: var(--text-primary);
}
.static-content blockquote cite {
  font-style: normal; font-size: 0.85rem; color: var(--text-muted);
}

.expertise-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 20px;
  margin: 24px 0 36px;
}
.expertise-card {
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 28px; transition: all var(--transition);
  display: flex; flex-direction: column; align-items: center; text-align: center;
}
.expertise-card:hover {
  border-color: var(--border-glow); transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.expertise-icon {
  font-size: 2.2rem; margin-bottom: 12px;
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(0,0,0,0.03); display: flex; align-items: center; justify-content: center;
}
.expertise-card h3 {
  font-size: 1.1rem; color: var(--text-primary); margin-bottom: 8px;
}
.expertise-card p {
  font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 0;
}

.author-timeline {
  position: relative; padding-left: 40px; margin: 28px 0 40px;
}
.author-timeline::before {
  content: ''; position: absolute; left: 11px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(180deg, var(--text-primary) 0%, var(--glass-border) 100%);
}
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-year {
  font-size: 0.78rem; font-weight: 700; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 4px;
}
.timeline-dot {
  position: absolute; left: -33px; top: 10px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--text-primary); border: 2px solid #fff;
  box-shadow: 0 0 0 3px rgba(0,0,0,0.08);
}
.timeline-item:last-child .timeline-dot {
  box-shadow: 0 0 0 3px rgba(0,0,0,0.12);
}
.timeline-content {
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 18px 22px; transition: all var(--transition);
}
.timeline-content:hover { border-color: var(--border-glow); }
.timeline-content h3 {
  font-size: 1rem; color: var(--text-primary); margin-bottom: 6px;
}
.timeline-content p {
  font-size: 0.86rem; color: var(--text-secondary); line-height: 1.55; margin-bottom: 0;
}

.trust-grid { margin: 24px 0 36px; display: flex; flex-direction: column; gap: 18px; }
.trust-item {
  display: flex; gap: 20px; align-items: flex-start;
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md);
  padding: 24px; transition: all var(--transition);
}
.trust-item:hover { border-color: var(--border-glow); }
.trust-icon {
  font-size: 2rem; flex-shrink: 0;
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(0,0,0,0.03); display: flex; align-items: center; justify-content: center;
}
.trust-item h3 {
  font-size: 1.05rem; color: var(--text-primary); margin-bottom: 6px;
}
.trust-item p {
  font-size: 0.88rem; color: var(--text-secondary); line-height: 1.55; margin-bottom: 0;
}

.consultation-cta {
  background: rgba(0,0,0,0.02); border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg); padding: 36px; margin: 44px 0 36px;
  text-align: center; transition: all var(--transition);
}
.consultation-cta:hover { border-color: var(--border-glow); box-shadow: var(--shadow-sm); }
.consultation-cta h2 { margin-top: 0; font-size: 1.3rem; }
.consultation-cta p { font-size: 0.93rem; }
.consultation-cta a { font-weight: 600; }

.author-closing {
  text-align: center; padding: 44px 0 0;
  border-top: 1px solid var(--glass-border); margin-top: 16px;
}
.closing-quote {
  font-size: 1.25rem; font-style: italic; color: var(--text-primary); margin-bottom: 4px;
}
.closing-source { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 24px; }
.closing-message { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 8px; }
.closing-signature { font-size: 0.9rem; color: var(--text-primary); font-weight: 600; }

.author-intro { max-width: 780px; margin: 0 auto; }
.author-intro-card {
  display: flex; gap: 28px; align-items: flex-start;
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 32px; transition: all var(--transition);
}
.author-intro-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.author-intro-avatar {
  width: 80px; height: 80px; flex-shrink: 0;
  border-radius: 50%; background: rgba(0,0,0,0.03);
  border: 2px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.2rem;
}
.author-intro-body h3 {
  font-size: 1.25rem; color: var(--text-primary); margin-bottom: 4px;
}
.author-zh-inline {
  font-size: 1.05rem; color: var(--text-secondary); font-weight: 400;
  font-family: 'STKaiti','KaiTi','Microsoft YaHei',serif; margin-left: 6px;
}
.author-intro-title {
  font-size: 0.82rem; color: var(--text-muted); margin-bottom: 14px; font-weight: 500;
}
.author-intro-body p {
  font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 10px;
}
.author-intro-link {
  display: inline-block; margin-top: 10px; font-size: 0.85rem; color: var(--text-primary);
  font-weight: 600; transition: opacity 0.2s;
}
.author-intro-link:hover { opacity: 0.65; }

@media (max-width: 768px) {
  .expertise-grid { grid-template-columns: 1fr; }
  .about-author-page .static-content { padding: 0 16px 60px; }
  .author-header h1 { font-size: 1.6rem; }
  .author-zh { font-size: 1.3rem; display: block; margin-left: 0; margin-top: 4px; }
  .author-timeline { padding-left: 32px; }
  .trust-item { flex-direction: column; align-items: center; text-align: center; }
  .consultation-cta { padding: 28px 20px; }
  .author-intro-card { flex-direction: column; align-items: center; text-align: center; }
  .author-intro-avatar { width: 64px; height: 64px; font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .expertise-grid { grid-template-columns: 1fr; }
  .author-avatar { width: 80px; height: 80px; }
  .avatar-symbol { font-size: 2.2rem; }
}

/* ---------- Share Buttons ---------- */
.share-buttons {
  display: flex; justify-content: center; align-items: center; gap: 14px;
  margin-top: 36px; padding-top: 28px; border-top: 1px solid var(--glass-border);
}
.share-btn {
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--glass-border); background: var(--glass-bg);
  color: var(--text-secondary); font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.share-btn:hover { border-color: var(--text-primary); color: var(--text-primary); background: rgba(0,0,0,0.04); }

/* ---------- Author Bio Box (Blog Posts) ---------- */
.author-bio-box {
  max-width: 820px; margin: 48px auto 0; padding: 0 24px;
}
.author-bio-inner {
  display: flex; gap: 20px; align-items: flex-start;
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 24px; transition: all var(--transition);
}
.author-bio-inner:hover { border-color: var(--border-glow); }
.author-bio-avatar {
  width: 56px; height: 56px; flex-shrink: 0;
  border-radius: 50%; background: rgba(0,0,0,0.03);
  border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
}
.author-bio-text h3 {
  font-size: 0.95rem; color: var(--text-primary); margin-bottom: 4px;
}
.author-bio-text h3 a { color: var(--text-primary); }
.author-bio-text h3 a:hover { opacity: 0.65; }
.author-bio-text .author-bio-title {
  font-size: 0.75rem; color: var(--text-muted); margin-bottom: 8px; font-weight: 500;
}
.author-bio-text p {
  font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55; margin-bottom: 0;
}
@media (max-width: 768px) {
  .author-bio-inner { flex-direction: column; align-items: center; text-align: center; }
  .author-bio-avatar { width: 48px; height: 48px; font-size: 1.3rem; }
}

/* ---------- Translation / Explanation Toolbar ---------- */
.lang-toolbar {
  position: sticky; top: 80px; z-index: 50;
  max-width: 820px; margin: 0 auto 20px; padding: 0 24px;
  display: flex; justify-content: flex-end; gap: 8px;
}
.lang-toolbar button {
  padding: 8px 18px; border-radius: 20px; border: 1px solid var(--glass-border);
  background: var(--glass-bg); backdrop-filter: blur(10px);
  color: var(--text-secondary); font-size: 0.82rem; font-weight: 600;
  cursor: pointer; letter-spacing: 1px;
  transition: all var(--transition); display: inline-flex; align-items: center; gap: 4px;
}
.lang-toolbar button:hover { border-color: var(--text-primary); color: var(--text-primary); }
.lang-toolbar button.active { background: rgba(0,0,0,0.06); border-color: var(--text-primary); color: var(--text-primary); }
.lang-toolbar .toolbar-hint {
  font-size: 0.7rem; color: var(--text-muted); display: block; text-align: right;
  margin-top: 4px; padding-right: 24px;
}

/* Chinese translation text */
.zh-text {
  display: none; color: var(--text-secondary); font-size: 0.92rem;
  margin-top: 2px; padding: 4px 12px; border-left: 2px solid var(--text-primary);
}
.zh-text.visible { display: block; }

/* ---------- Explanation System ---------- */
/* Clickable term with popup */
.explain-term {
  border-bottom: 2px dotted var(--text-primary);
  cursor: pointer; position: relative; color: var(--text-primary);
  font-weight: 500; padding: 0 2px;
  transition: all 0.2s;
}
.explain-term::after {
  content: ' ⓘ'; font-size: 0.7rem; vertical-align: super; color: var(--text-muted);
}
.explain-term:hover, .explain-term.active { background: rgba(0,0,0,0.04); border-color: var(--text-primary); }

/* Popup card */
.explain-pop {
  display: none; position: fixed; z-index: 2000;
  background: #fff; border: 2px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md); padding: 16px 20px;
  color: var(--text-primary); font-size: 0.88rem; line-height: 1.55;
  max-width: 360px; min-width: 220px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.12);
  white-space: normal; text-align: left;
}
.explain-pop .pop-zh {
  color: var(--text-primary); font-family: 'STKaiti','KaiTi','Microsoft YaHei',serif;
  font-size: 1.05rem; margin-bottom: 6px; display: block; font-weight: 700;
}
.explain-pop .pop-en { color: var(--text-secondary); font-size: 0.82rem; display: block; }
.explain-pop .pop-close {
  position: absolute; top: 4px; right: 10px;
  color: var(--text-muted); cursor: pointer; font-size: 1rem; background: none; border: none;
}
.explain-pop .pop-close:hover { color: var(--text-primary); }

/* Backdrop when popup is open */
.pop-backdrop {
  display: none; position: fixed; inset: 0; z-index: 1999;
  background: rgba(0,0,0,0.3);
}

/* Inline explanation block (visible when 解释 mode is ON) */
.explain-inline {
  display: none; margin: 2px 0 14px 0; padding: 12px 18px;
  background: rgba(0,0,0,0.02); border-left: 3px solid var(--text-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.85rem; color: var(--text-secondary); line-height: 1.55;
}
.explain-inline.visible { display: block; }
.explain-inline .ei-zh { color: var(--text-primary); font-weight: 600; }
.explain-inline .ei-en { color: var(--text-muted); display: block; margin-top: 4px; }

/* ---------- I Ching Original Text Styles ---------- */
.iching-original-toolbar { margin-bottom: 28px; }
.hexagram-header {
  text-align: center; margin-bottom: 40px; padding: 32px 20px;
  background: rgba(0,0,0,0.015); border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}
.hexagram-symbol {
  font-size: 5rem; line-height: 1.2; color: var(--text-primary);
  margin-bottom: 8px;
}
.hexagram-name {
  font-size: 1.3rem; font-weight: 700; color: var(--text-primary);
  margin-bottom: 4px;
}
.hexagram-trigrams {
  font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 4px;
}
.hexagram-element {
  font-size: 0.8rem; color: var(--text-muted);
}
.original-text {
  background: rgba(0,0,0,0.02); border: 1px solid var(--glass-border);
  border-radius: var(--radius-md); padding: 20px 24px; margin: 12px 0 16px 0;
  text-align: center;
}
.classical-chinese {
  font-family: 'STKaiti','KaiTi','FangSong','SimSun','Noto Serif SC',serif;
  font-size: 1.5rem; color: var(--text-primary); line-height: 2;
  letter-spacing: 2px;
}
.english-trans {
  color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7;
  padding-left: 0; margin-bottom: 8px;
}
.line-item {
  margin: 32px 0; padding-bottom: 20px;
  border-bottom: 1px dashed var(--glass-border);
}
.line-item:last-of-type { border-bottom: none; }
.line-number {
  font-size: 0.85rem; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px;
}
.line-item .classical-chinese { font-size: 1.35rem; }
.special-line {
  background: rgba(0,0,0,0.02); padding: 20px;
  border-radius: var(--radius-md); border: 1px solid var(--glass-border);
}
.next-chapter-box {
  margin-top: 40px; padding: 24px;
  background: rgba(0,0,0,0.02); border-radius: var(--radius-md);
  border: 1px solid var(--glass-border); text-align: center;
  color: var(--text-secondary); font-size: 0.95rem;
}
.next-chapter-box a { color: var(--text-primary); font-weight: 600; }

/* ---------- Waline Comments ---------- */
#waline {
  margin-top: 56px;
  max-width: 780px;
  padding: 36px 32px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

#waline .wl-header {
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border);
  position: relative;
}
#waline .wl-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--text-primary);
}
#waline .wl-header label {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

#waline .wl-header input {
  width: 100%;
  padding: 10px 14px;
  margin-top: 8px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: border-color var(--transition);
  outline: none;
}
#waline .wl-header input:focus {
  border-color: var(--text-primary);
}

#waline .wl-editor {
  margin-bottom: 16px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
#waline .wl-editor:focus-within {
  border-color: var(--text-primary);
}
#waline .wl-editor .wl-edit {
  width: 100%;
  min-height: 120px;
  padding: 16px;
  border: none;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  resize: vertical;
  outline: none;
  line-height: 1.7;
}

#waline .wl-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
}

#waline .wl-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--text-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}
#waline .wl-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

#waline .wl-comment {
  padding: 0;
}
#waline .wl-card {
  padding: 24px 0;
  border-bottom: 1px solid var(--glass-border);
}
#waline .wl-card:last-child {
  border-bottom: none;
}

#waline .wl-card .wl-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
#waline .wl-card .wl-user .wl-nick {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
#waline .wl-card .wl-user .wl-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
  color: #fff;
  background: var(--text-primary);
}

#waline .wl-card .wl-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}
#waline .wl-card .wl-content {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
#waline .wl-card .wl-actions {
  margin-top: 10px;
  display: flex;
  gap: 16px;
}
#waline .wl-card .wl-actions button {
  background: none;
  border: none;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 0;
  transition: color var(--transition);
}
#waline .wl-card .wl-actions button:hover {
  color: var(--text-primary);
}

#waline .wl-card .wl-reply {
  margin-top: 14px;
  margin-left: 20px;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

#waline .wl-empty {
  text-align: center;
  padding: 32px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

#waline .wl-count {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}

#waline .wl-sort {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
#waline .wl-sort button {
  background: none;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 0.82rem;
  font-family: inherit;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
#waline .wl-sort button.active,
#waline .wl-sort button:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

#waline .wl-emoji-popup {
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

#waline a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.waline-wrapper { margin-top: 24px; min-height: 200px; }

#waline .wl-power { display: none; }
#waline .wl-footer-item { display: none; }
#waline .wl-rss { display: none; }
#waline .wl-header { display: none; }
#waline .wl-actions { display: none; }

/* ---------- Tools Page ---------- */
.tools-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px; margin-top: 24px;
}
.tool-card {
  background: var(--glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 32px 28px; transition: all var(--transition);
}
.tool-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px); }
.tool-icon { font-size: 3rem; margin-bottom: 16px; }
.tool-card h2 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 10px; }
.tool-card p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.65; margin-bottom: 14px; }
.tool-card ul { padding-left: 20px; color: var(--text-secondary); font-size: 0.88rem; margin-bottom: 16px; }
.tool-card ul li { margin-bottom: 4px; }
.tool-status {
  display: inline-block; padding: 4px 14px; border-radius: 14px;
  background: rgba(0,0,0,0.04); color: var(--text-muted);
  font-size: 0.75rem; letter-spacing: 1px; font-weight: 600;
}
.tool-card-link {
  text-decoration: none; color: inherit; display: block;
  cursor: pointer;
}
.tool-card-link:hover {
  border-color: var(--border-glow); box-shadow: var(--shadow-glow); transform: translateY(-4px);
}
.tool-status.available {
  background: rgba(34,197,94,0.12); color: #16a34a;
}

/* ---------- Table of Contents Sidebar ---------- */
.toc-sidebar {
  position: fixed; left: 0; top: 50%; transform: translateY(-50%);
  z-index: 900; transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.toc-sidebar.collapsed { left: -260px; }
.toc-toggle {
  position: absolute; right: 0; top: 50%; transform: translate(100%, -50%);
  width: 36px; height: 36px; border-radius: 0 8px 8px 0;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border); border-left: none;
  color: var(--text-primary); font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); z-index: 901;
  box-shadow: 2px 0 8px rgba(0,0,0,0.04);
}
.toc-toggle:hover { background: rgba(0,0,0,0.04); }
.toc-panel {
  width: 260px; max-height: 70vh; overflow-y: auto;
  background: rgba(255,255,255,0.94); backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-left: none;
  border-radius: 0 12px 12px 0; padding: 20px 16px;
  box-shadow: 2px 0 20px rgba(0,0,0,0.06);
}
.toc-panel::-webkit-scrollbar { width: 4px; }
.toc-panel::-webkit-scrollbar-thumb { background: #d1d1d6; border-radius: 2px; }
.toc-title {
  font-size: 0.85rem; font-weight: 700; color: var(--text-primary);
  margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--glass-border);
  letter-spacing: 2px; text-transform: uppercase;
}
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 2px; }
.toc-list li a {
  display: block; padding: 6px 10px; border-radius: 6px;
  font-size: 0.82rem; color: var(--text-secondary); line-height: 1.4;
  transition: all 0.2s; border-left: 2px solid transparent;
}
.toc-list li a:hover { color: var(--text-primary); background: rgba(0,0,0,0.03); }
.toc-list li a.active {
  color: var(--text-primary); font-weight: 600;
  background: rgba(0,0,0,0.04); border-left-color: var(--text-primary);
}

@media (max-width: 768px) {
  .toc-sidebar { left: 0; }
  .toc-sidebar.collapsed { left: -260px; }
  .toc-panel { width: 240px; }
}

@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .post-header h1 { font-size: 1.9rem; }
  .post-content { font-size: 0.98rem; }
  .post-featured-image { height: 200px; font-size: 3.5rem; }
  .blog-list { padding: 24px 16px 60px; }
  .blog-hero h1 { font-size: 2rem; }
  .related-grid { grid-template-columns: 1fr; }
  .lang-toolbar { top: 72px; justify-content: center; }
   .explain-pop { max-width: 280px; left: 50% !important; transform: translateX(-50%) !important; top: 120px !important; }
   .explain-term::after { content: ''; }
}