/* ===================================================
   WordPress 主题 — Modern Minimal 设计系统
   Design direction: Modern minimal (Linear/Vercel)
   =================================================== */

:root {
  --bg:      oklch(99% 0.002 240);
  --surface: oklch(100% 0 0);
  --fg:      oklch(18% 0.012 250);
  --muted:   oklch(54% 0.012 250);
  --border:  oklch(92% 0.005 250);
  --accent:  oklch(58% 0.18 255);

  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  --font-body:    -apple-system, BlinkMacSystemFont, 'SF Pro Text', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 6%);
  --shadow-md: 0 4px 12px oklch(0% 0 0 / 8%);
  --content-width: 720px;
  --wide-width: 1120px;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--fg);
}
h1 { font-size: clamp(32px, 4vw, 48px); }
h2 { font-size: clamp(24px, 3vw, 32px); }
h3 { font-size: 20px; }
h4 { font-size: 18px; }

p { margin-bottom: 1em; max-width: 65ch; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

small, .text-sm { font-size: 14px; color: var(--muted); }
.text-xs { font-size: 13px; color: var(--muted); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: oklch(96% 0.004 250);
  border-radius: var(--radius-sm);
  padding: 0.15em 0.4em;
}
pre {
  padding: 1em;
  overflow-x: auto;
  line-height: 1.5;
}

/* ---- Layout ---- */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-content {
  flex: 1;
  width: 100%;
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 32px 24px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
}

@media (max-width: 820px) {
  .site-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.content-area { min-width: 0; }
.site-sidebar { min-width: 0; }

.content-wide {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 32px 24px;
}

/* ---- Site Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(99% 0.002 240 / 85%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 24px;
}

.header-inner {
  width: 100%;
  max-width: var(--wide-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-title:hover { text-decoration: none; }
.site-title .logo-mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--fg);
  background: oklch(94% 0.004 250);
  text-decoration: none;
}

.nav-search {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.nav-search:hover { color: var(--fg); border-color: var(--accent); }
.nav-search svg { width: 18px; height: 18px; }

.mobile-menu-btn {
  display: none;
  width: 36px; height: 36px;
  place-items: center;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--fg);
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: grid; }
}

/* ---- Site Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--wide-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--muted);
  padding: 4px 0;
}
.footer-col a:hover { color: var(--fg); }
.footer-bottom {
  max-width: var(--wide-width);
  margin: 24px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---- Post/Entry Cards ---- */
.post-list { display: flex; flex-direction: column; gap: 4px; }

.post-card {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.post-card:first-child { padding-top: 0; }
.post-card:last-child { border-bottom: 0; }

@media (max-width: 640px) {
  .post-card { grid-template-columns: 1fr; gap: 12px; }
}

.post-card .post-thumb {
  width: 200px;
  height: 140px;
  border-radius: var(--radius-md);
  background: oklch(92% 0.005 250);
  overflow: hidden;
  order: 1;
}
.post-card .post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 640px) {
  .post-card .post-thumb {
    width: 100%;
    height: 200px;
    order: -1;
  }
}

.post-card .post-meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.post-card .post-meta .cat-tag {
  color: var(--accent);
  font-weight: 500;
}

.post-card h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.post-card h2 a { color: var(--fg); text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }

.post-card .post-excerpt {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Single Post ---- */
.article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.article-header .cat-breadcrumb {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
}
.article-header .cat-breadcrumb a { color: var(--muted); }
.article-header .cat-breadcrumb a:hover { color: var(--accent); }
.article-header .cat-breadcrumb .sep { margin: 0 6px; }

.article-header h1 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
  flex-wrap: wrap;
}

.article-meta .author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border);
  overflow: hidden;
}

.article-body {
  font-size: 17px;
  line-height: 1.7;
  max-width: 65ch;
}
.article-body h2 { margin-top: 40px; margin-bottom: 16px; }
.article-body h3 { margin-top: 32px; margin-bottom: 12px; }
.article-body p { margin-bottom: 1.2em; }
.article-body ul, .article-body ol { margin-bottom: 1.2em; padding-left: 24px; }
.article-body li { margin-bottom: 0.4em; }
.article-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 24px 0;
}
.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: oklch(97% 0.003 250);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--muted);
}

.article-body .wp-block-code { margin: 24px 0; }

.article-tags {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.article-tags a {
  font-size: 13px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
}
.article-tags a:hover { border-color: var(--accent); color: var(--accent); }

/* ---- Comments ---- */
.comments-area {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.comments-area h3 {
  font-size: 20px;
  margin-bottom: 24px;
}

.comment-list { list-style: none; padding: 0; }
.comment {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.comment:last-child { border-bottom: 0; }
.comment .comment-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 14px;
}
.comment .comment-meta .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--border);
}
.comment .comment-meta .author-name { font-weight: 600; color: var(--fg); }
.comment .comment-meta .date { color: var(--muted); }
.comment .comment-body { font-size: 15px; color: var(--muted); }

.comment-respond { margin-top: 32px; }
.comment-respond .comment-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.comment-respond input,
.comment-respond textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  background: var(--surface);
  color: var(--fg);
  transition: border-color 0.15s;
}
.comment-respond input:focus,
.comment-respond textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.comment-respond textarea { min-height: 120px; resize: vertical; }
.comment-respond .submit-btn {
  align-self: flex-start;
  padding: 10px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.comment-respond .submit-btn:hover { opacity: 0.85; }

/* ---- Sidebar Widgets ---- */
.widget {
  margin-bottom: 32px;
}
.widget-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.widget ul { list-style: none; }
.widget ul li {
  padding: 8px 0;
  border-bottom: 1px solid oklch(94% 0.004 250);
  font-size: 14px;
}
.widget ul li a { color: var(--fg); }
.widget ul li a:hover { color: var(--accent); }

.widget-popular .popular-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid oklch(94% 0.004 250);
  align-items: flex-start;
}
.widget-popular .popular-item:last-child { border-bottom: 0; }
.widget-popular .popular-thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: var(--border);
  flex-shrink: 0;
  overflow: hidden;
}
.widget-popular .popular-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.widget-popular .popular-title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--fg);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Category/Tag Header ---- */
.archive-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.archive-header h1 { margin-bottom: 8px; }
.archive-header p { color: var(--muted); font-size: 15px; }

/* ---- Pagination ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.pagination a, .pagination span {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.15s;
}
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---- Search Page ---- */
.search-form {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}
.search-form input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 15px;
  background: var(--surface);
  transition: border-color 0.15s;
}
.search-form input:focus {
  outline: none;
  border-color: var(--accent);
}
.search-form button {
  padding: 12px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.search-form button:hover { opacity: 0.85; }
.search-count { font-size: 14px; color: var(--muted); margin-bottom: 24px; }

/* ---- 404 Page ---- */
.page-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  padding: 48px 24px;
}
.page-404 h1 {
  font-size: clamp(80px, 12vw, 140px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--border);
  line-height: 1;
  margin-bottom: 8px;
}
.page-404 h2 { font-size: 24px; margin-bottom: 12px; }
.page-404 p { color: var(--muted); margin-bottom: 24px; }
.page-404 .btn-home {
  padding: 12px 28px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
}
.page-404 .btn-home:hover { opacity: 0.85; text-decoration: none; }

/* ---- Topic / Special Page ---- */
.topic-hero {
  padding: 40px 0;
  margin-bottom: 32px;
}
.topic-hero h1 { font-size: clamp(32px, 4vw, 48px); margin-bottom: 12px; }
.topic-hero p { color: var(--muted); font-size: 16px; max-width: 56ch; }
.topic-hero .topic-meta {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}

/* ---- Course Page ---- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.course-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
  transition: box-shadow 0.2s;
}
.course-card:hover { box-shadow: var(--shadow-md); }

.course-card .course-thumb {
  width: 100%;
  height: 180px;
  background: oklch(90% 0.005 255);
  overflow: hidden;
}
.course-card .course-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.course-card .course-body { padding: 20px; }
.course-card .course-body .course-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 10px;
  border-radius: 999px;
  background: oklch(94% 0.008 255);
  color: var(--accent);
  margin-bottom: 8px;
}
.course-card .course-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.course-card .course-body h3 a { color: var(--fg); text-decoration: none; }
.course-card .course-body h3 a:hover { color: var(--accent); }
.course-card .course-body .course-instructor {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
}
.course-card .course-body .course-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}
.course-card .course-body .course-price {
  font-weight: 700;
  color: var(--accent);
  font-size: 16px;
}

/* ---- Author Page ---- */
.author-profile {
  display: flex;
  gap: 24px;
  padding: 32px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

@media (max-width: 640px) {
  .author-profile { flex-direction: column; align-items: center; text-align: center; }
}

.author-profile .author-avatar-lg {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  overflow: hidden;
}
.author-profile .author-avatar-lg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.author-profile .author-info h1 { margin-bottom: 8px; font-size: 28px; }
.author-profile .author-info .author-bio {
  color: var(--muted);
  font-size: 15px;
  max-width: 56ch;
}
.author-profile .author-meta {
  display: flex;
  gap: 16px;
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted);
  flex-wrap: wrap;
}
.author-profile .author-meta span { display: flex; align-items: center; gap: 4px; }

/* ---- Q&A Page ---- */
.qa-list { display: flex; flex-direction: column; gap: 2px; }
.qa-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 16px;
  align-items: start;
}
.qa-item:last-child { border-bottom: 0; }

.qa-item .qa-votes {
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.qa-item .qa-votes .vote-label {
  display: block;
  font-size: 11px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 2px;
}

.qa-item .qa-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}
.qa-item .qa-body h3 a { color: var(--fg); text-decoration: none; }
.qa-item .qa-body h3 a:hover { color: var(--accent); }
.qa-item .qa-body .qa-excerpt {
  font-size: 14px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.qa-item .qa-body .qa-meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 12px;
  align-items: center;
}
.qa-item .qa-body .qa-meta .answers-count {
  color: var(--accent);
  font-weight: 600;
}
.qa-item .qa-body .qa-meta .tag {
  padding: 1px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11px;
}

/* ---- Download Page ---- */
.download-list { display: flex; flex-direction: column; gap: 12px; }
.download-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: box-shadow 0.2s;
}
.download-item:hover { box-shadow: var(--shadow-sm); }

.download-item .dl-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: oklch(94% 0.008 255);
  display: grid;
  place-items: center;
  color: var(--accent);
  flex-shrink: 0;
  font-size: 20px;
}
.download-item .dl-info { flex: 1; min-width: 0; }
.download-item .dl-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
}
.download-item .dl-info h3 a { color: var(--fg); text-decoration: none; }
.download-item .dl-info h3 a:hover { color: var(--accent); }
.download-item .dl-info .dl-meta {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 12px;
}
.download-item .dl-btn {
  padding: 8px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
  text-decoration: none;
}
.download-item .dl-btn:hover { opacity: 0.85; text-decoration: none; }

/* ---- Breadcrumb ---- */
.breadcrumb {
  font-size: 13px;
  color: var(--muted);
}

/* ---- 商业级分类页模块 ---- */
.module-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

/* 学习路径推荐模块 */
.cat-learning-path {
  margin: 48px 0;
  padding: 32px;
  background: oklch(98% 0.003 250);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.learning-path-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 768px) {
  .learning-path-grid { grid-template-columns: 1fr; }
  .cat-learning-path { padding: 24px; }
}

.path-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}

.path-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.path-card .path-level {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.path-card.path-beginner .path-level {
  background: oklch(90% 0.08 145 / 30%);
  color: oklch(45% 0.14 145);
}

.path-card.path-intermediate .path-level {
  background: oklch(90% 0.08 220 / 30%);
  color: oklch(45% 0.14 220);
}

.path-card.path-advanced .path-level {
  background: oklch(90% 0.08 30 / 30%);
  color: oklch(45% 0.14 30);
}

.path-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.path-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

.path-card .path-stats {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 16px;
}

.path-card .path-link {
  align-self: flex-start;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.15s;
}

.path-card .path-link:hover { opacity: 0.85; text-decoration: none; }

/* 相关资源/工具推荐模块 */
.cat-resources {
  margin: 48px 0;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 640px) {
  .resources-grid { grid-template-columns: 1fr; }
}

.resource-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: box-shadow 0.2s;
}

.resource-item:hover { box-shadow: var(--shadow-sm); }

.resource-item .resource-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: oklch(94% 0.008 255);
  display: grid;
  place-items: center;
  font-size: 24px;
  flex-shrink: 0;
}

.resource-item .resource-info { flex: 1; min-width: 0; }

.resource-item .resource-info h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.resource-item .resource-info p {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
}

.resource-item .resource-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.resource-item .resource-link:hover { text-decoration: underline; }

/* 活跃作者榜单模块 */
.cat-active-authors {
  margin: 48px 0;
}

.authors-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.author-rank {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  align-items: flex-start;
  transition: box-shadow 0.2s;
}

.author-rank:hover { box-shadow: var(--shadow-sm); }

.author-rank .rank-badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.author-rank.author-rank-1 .rank-badge {
  background: linear-gradient(135deg, oklch(58% 0.18 255), oklch(50% 0.22 255));
}

.author-rank.author-rank-2 .rank-badge {
  background: linear-gradient(135deg, oklch(70% 0.12 250), oklch(60% 0.16 250));
}

.author-rank.author-rank-3 .rank-badge {
  background: linear-gradient(135deg, oklch(75% 0.10 60), oklch(65% 0.14 60));
}

.author-rank .author-avatar-lg {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--border);
  overflow: hidden;
  flex-shrink: 0;
}

.author-rank .author-avatar-lg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author-rank .author-details { flex: 1; min-width: 0; }

.author-rank .author-details h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.author-rank .author-details .author-bio {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.author-rank .author-details .author-stats {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--muted);
}

.author-rank .author-details .author-stats strong {
  color: var(--fg);
  font-weight: 600;
}

@media (max-width: 640px) {
  .author-rank { flex-direction: column; align-items: center; text-align: center; }
  .author-rank .author-details { text-align: center; }
  .author-rank .author-details .author-stats { justify-content: center; }
}

/* 趋势/热点话题模块 */
.cat-trending-topics {
  margin: 48px 0;
}

.trending-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trending-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: box-shadow 0.2s;
}

.trending-item:hover { box-shadow: var(--shadow-sm); }

.trending-item .trending-rank {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: oklch(94% 0.008 255);
  display: grid;
  place-items: center;
  font-size: 24px;
  flex-shrink: 0;
}

.trending-item.trending-hot .trending-rank {
  background: oklch(92% 0.08 30 / 20%);
}

.trending-item.trending-rising .trending-rank {
  background: oklch(92% 0.08 145 / 20%);
}

.trending-item.trending-new .trending-rank {
  background: oklch(92% 0.08 220 / 20%);
}

.trending-item .trending-content { flex: 1; min-width: 0; }

.trending-item .trending-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.trending-item .trending-content p {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  line-height: 1.5;
}

.trending-item .trending-content .trending-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 12px;
}

.trending-item .trending-content .trending-meta .trending-stat {
  color: var(--muted);
}

.trending-item .trending-content .trending-meta .trending-tag {
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.trending-item.trending-hot .trending-meta .trending-tag {
  background: oklch(92% 0.08 30 / 30%);
  color: oklch(45% 0.14 30);
}

.trending-item.trending-rising .trending-meta .trending-tag {
  background: oklch(92% 0.08 145 / 30%);
  color: oklch(45% 0.14 145);
}

.trending-item.trending-new .trending-meta .trending-tag {
  background: oklch(92% 0.08 220 / 30%);
  color: oklch(45% 0.14 220);
}

/* FAQ 常见问题模块 */
.cat-faq {
  margin: 48px 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.faq-item .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: background 0.15s;
  font-weight: 500;
  font-size: 15px;
}

.faq-item .faq-question:hover { background: oklch(96% 0.004 250); }

.faq-item .faq-question span { flex: 1; }

.faq-item .faq-question .faq-toggle {
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item.faq-item-open .faq-question .faq-toggle {
  transform: rotate(180deg);
}

.faq-item .faq-answer {
  display: none;
  padding: 0 20px 20px;
  border-top: 1px solid var(--border);
}

.faq-item.faq-item-open .faq-answer { display: block; }

.faq-item .faq-answer p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-top: 16px;
}
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 6px; }

/* ---- Responsive共通 ---- */
@media (max-width: 480px) {
  .site-content { padding: 20px 16px; }
  .content-wide { padding: 20px 16px; }
  .site-header { padding: 0 16px; }
}