/* ===== Design Tokens ===== */
:root {
  --color-primary: #C75B1A;
  --color-primary-hover: #A04A14;
  --color-primary-light: #FDF0E6;
  --color-accent: #2D6A4F;
  --color-bg: #FDF8F0;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F9F2E8;
  --color-text: #1C1917;
  --color-text-secondary: #57534E;
  --color-text-muted: #A8A29E;
  --color-border: #E7E0D8;
  --color-border-light: #F2EDE6;
  --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1100px;
  --header-height: 3.5rem;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  overflow-wrap: anywhere;
}

img, video, svg, iframe {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul, ol {
  list-style: none;
}

/* ===== Utility ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== Header ===== */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

.top-bar--scrolled {
  box-shadow: var(--shadow-md);
}

.top-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar__brand {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.top-bar__brand:hover {
  color: var(--color-primary);
}

.top-bar__nav {
  display: none;
}

.top-bar__nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.top-bar__nav a:hover,
.top-bar__nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.top-bar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.top-bar__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.top-bar__hamburger:hover {
  background: var(--color-primary-light);
}

.top-bar__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.top-bar__hamburger.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.top-bar__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.top-bar__hamburger.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface);
  z-index: 99;
  padding: var(--space-lg) var(--space-md);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav a {
  display: block;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ===== Main Content ===== */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-3xl);
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.hero__main {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-base);
}

.hero__main:hover {
  box-shadow: var(--shadow-md);
}

.hero__main-img {
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--color-border-light);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.hero__main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.hero__main:hover .hero__main-img img {
  transform: scale(1.03);
}

.hero__main-body {
  padding: var(--space-lg);
}

.hero__main .chip {
  margin-bottom: var(--space-sm);
}

.hero__main-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.hero__main-title:hover {
  color: var(--color-primary);
}

.hero__main-excerpt {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hero__side {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hero__side-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.hero__side-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-border);
}

.hero__side-img {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-border-light);
}

.hero__side-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.hero__side-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.hero__side-title:hover {
  color: var(--color-primary);
}

.hero__side-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-text);
}

.section-header__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.section-header__more {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  white-space: nowrap;
}

.section-header__more:hover {
  color: var(--color-primary-hover);
}

/* Featured Section */
.featured {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.featured__card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  transition: box-shadow var(--transition-base);
}

.featured__card:hover {
  box-shadow: var(--shadow-md);
}

.featured__card-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-border-light);
}

.featured__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.featured__card:hover .featured__card-img img {
  transform: scale(1.03);
}

.featured__card-body {
  padding: var(--space-lg);
}

.featured__card .chip {
  margin-bottom: var(--space-sm);
}

.featured__card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.featured__card-title:hover {
  color: var(--color-primary);
}

.featured__card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Featured Text Card (accent bg) */
.featured__card--text {
  background: var(--color-primary-light);
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-lg);
  min-height: 240px;
}

.featured__card--text .featured__card-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.featured__card--text .featured__card-excerpt {
  font-size: var(--text-base);
  line-height: 1.7;
  -webkit-line-clamp: 4;
}

/* Divider Line */
.section-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2xl) 0;
}

/* Article List */
.article-list {
  margin-bottom: var(--space-3xl);
}

.article-list__section {
  margin-bottom: var(--space-3xl);
}

/* Ad Div — 由后端广告系统接管，不添加样式 */


/* ===== Sidebar ===== */
.sidebar {
  margin-bottom: var(--space-3xl);
}

.sidebar__section {
  margin-bottom: var(--space-xl);
}

.sidebar__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

/* Trending List */
.trending-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.trending-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  min-height: 44px;
}

.trending-item:last-child {
  border-bottom: none;
}

.trending-item__num {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  min-width: 28px;
  flex-shrink: 0;
}

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

.trending-item__title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.trending-item__title:hover {
  color: var(--color-primary);
}

.trending-item__meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* Category Cloud */
.category-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.category-cloud a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  min-height: 36px;
}

.category-cloud a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ===== Footer ===== */
.foot-bar {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.foot-bar::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 2px,
    var(--color-border-light) 2px,
    var(--color-border-light) 4px
  );
  opacity: 0.4;
  pointer-events: none;
}

.foot-bar__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  position: relative;
  z-index: 1;
}

.foot-bar__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.foot-bar__col-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.foot-bar__col a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  min-height: 32px;
  display: flex;
  align-items: center;
}

.foot-bar__col a:hover {
  color: var(--color-primary);
}

.foot-bar__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ===== Chip ===== */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(45, 106, 79, 0.08);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  min-height: 24px;
}

.chip--primary {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ===== Row Card ===== */
.row-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast);
}

.row-card:last-child {
  border-bottom: none;
}

.row-card__pic {
  width: 100px;
  aspect-ratio: 5 / 3;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-border-light);
}

.row-card__pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.row-card__info {
  flex: 1;
  min-width: 0;
}

.row-card__head {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.row-card__head:hover {
  color: var(--color-primary);
}

.row-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.row-card__meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ===== Page Wrapper (sub-pages) ===== */
.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) var(--space-3xl);
}

@media (min-width: 768px) {
  .wrapper {
    padding-top: calc(var(--header-height) + var(--space-xl));
  }
}

/* ===== Log (archive) ===== */
.log {
  max-width: 760px;
  margin: 0 auto;
}

.log__era {
  margin-bottom: var(--space-2xl);
}

.log__era-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}

.log__row {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: baseline;
}

.log__stamp {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
  min-width: 90px;
  flex-shrink: 0;
}

.log__entry {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  flex: 1;
  min-width: 0;
}

.log__entry:hover {
  color: var(--color-primary);
}

/* ===== Standalone Page ===== */
.standalone__top {
  margin-bottom: var(--space-2xl);
}

.standalone__top h1 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.standalone__body {
  max-width: 720px;
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.standalone__body p {
  margin-bottom: var(--space-md);
}

/* ===== Pager ===== */
.pager {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2xl);
}

.pager__track {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.pager__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pager__btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.pager__btn.active {
  color: var(--color-surface);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.pager__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-text);
  color: var(--color-surface);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  z-index: 300;
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  align-items: center;
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .sep {
  color: var(--color-border);
}

/* ===== Category Page ===== */
.cat-header {
  margin-bottom: var(--space-2xl);
}

.cat-header__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.cat-header__count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== Detail Page ===== */
.article-detail {
  max-width: 760px;
  margin: 0 auto;
}

.article-detail__header {
  margin-bottom: var(--space-xl);
}

.article-detail__category {
  margin-bottom: var(--space-sm);
}

.article-detail__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.article-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
}

.article-detail__author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.article-detail__author-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  overflow: hidden;
  flex-shrink: 0;
}

.article-detail__author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-detail__author-name {
  font-weight: 500;
  color: var(--color-text-secondary);
}

.read__body {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--color-text);
}

.read__body p {
  margin-bottom: var(--space-md);
}

.read__body h2 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--color-text);
}

.read__body h3 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin: var(--space-lg) 0 var(--space-sm);
  color: var(--color-text);
}

.read__body blockquote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-sm) var(--space-lg);
  margin: var(--space-lg) 0;
  background: var(--color-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.read__body img {
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
}

.read__body pre,
.read__body code {
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  overflow-x: auto;
  max-width: 100%;
}

.read__body pre {
  padding: var(--space-md);
  margin: var(--space-md) 0;
}

.read__body code {
  padding: 2px 6px;
}

.read__body table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  overflow-x: auto;
  display: block;
}

.read__body th,
.read__body td {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  text-align: left;
}

.read__body th {
  background: var(--color-border-light);
  font-weight: 600;
}

/* Detail Bottom */
.detail-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

/* ===== Detail Layout (two-column on desktop) ===== */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.detail-layout__main {
  min-width: 0;
}

@media (min-width: 1024px) {
  .detail-layout {
    grid-template-columns: 1fr 300px;
  }

  .detail-layout__side {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
  }
}

@media (min-width: 1100px) {
  .detail-layout {
    grid-template-columns: 1fr 320px;
  }
}

.author-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-xl);
}

.author-card__avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  overflow: hidden;
  flex-shrink: 0;
}

.author-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.author-card__name {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.author-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.prev-next {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.prev-next__item {
  padding: var(--space-md);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.prev-next__item:hover {
  border-color: var(--color-primary);
}

.prev-next__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.prev-next__title {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-articles {
  margin-bottom: var(--space-xl);
}

.related-articles__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

/* Share Container */
.share-container {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}

/* ===== Category Nav Inline ===== */
.cat-nav-inline {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-lg);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.cat-nav-inline::-webkit-scrollbar {
  display: none;
}

.cat-nav-inline a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
  min-height: 40px;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.cat-nav-inline a:hover,
.cat-nav-inline a.active {
  color: var(--color-surface);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* ===== Author Page ===== */
.author-profile {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-2xl);
}

.author-profile__avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  overflow: hidden;
  flex-shrink: 0;
}

.author-profile__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.author-profile__name {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.author-profile__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Follow Button */
.follow-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-surface);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  min-height: 40px;
  transition: background var(--transition-fast);
}

.follow-btn:hover {
  background: var(--color-primary-hover);
}

.follow-btn.following {
  background: var(--color-text-secondary);
}

/* ===== Comment Form ===== */
.comment-form {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.comment-form__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.comment-form__input,
.comment-form__textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition-fast);
  min-height: 44px;
  resize: vertical;
}

.comment-form__input:focus,
.comment-form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.comment-form__submit {
  display: inline-flex;
  align-items: center;
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-surface);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition-fast);
}

.comment-form__submit:hover {
  background: var(--color-primary-hover);
}

/* ===== Loading / Empty ===== */
.loading-text,
.empty-text {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--space-2xl);
  font-size: var(--text-sm);
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip Link */
.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  clip: auto;
  white-space: normal;
  transform: translateY(0);
}

/* ================================================
   RESPONSIVE — Mobile First (320-480px baseline)
   ================================================ */

/* 480px+ */
@media (min-width: 480px) {
  .hero__side-card {
    flex-direction: row;
    align-items: center;
  }

  .hero__side-img {
    width: 100px;
    height: 100px;
  }

  .foot-bar__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .row-card__pic {
    width: 140px;
  }

  .author-profile {
    flex-direction: row;
    align-items: flex-start;
  }
}

/* 768px+ */
@media (min-width: 768px) {
  :root {
    --header-height: 4rem;
  }

  .top-bar__hamburger {
    display: none;
  }

  .top-bar__nav {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
  }

  .mobile-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr 1fr;
  }

  .hero__main-title {
    font-size: var(--text-2xl);
  }

  .featured {
    grid-template-columns: 1.3fr 1fr;
  }

  .article-detail__title {
    font-size: var(--text-3xl);
  }

  .prev-next {
    grid-template-columns: 1fr 1fr;
  }

  .foot-bar__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .author-profile {
    padding: var(--space-2xl);
  }
}

/* 1024px+ */
@media (min-width: 1024px) {
  .main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-2xl);
    align-items: start;
    padding: var(--space-3xl) var(--space-md);
  }

  .main-content__primary {
    min-width: 0;
  }

  .sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-3xl));
  }

  .hero {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
  }

  .hero__main-title {
    font-size: var(--text-3xl);
  }

  .featured {
    gap: var(--space-xl);
  }

  .featured__card--text {
    min-height: 320px;
  }
}

/* 1100px+ */
@media (min-width: 1100px) {
  .main-content {
    grid-template-columns: 1fr 320px;
    gap: var(--space-3xl);
  }

  .hero {
    grid-template-columns: 1.6fr 1fr;
  }

  .hero__main-title {
    font-size: var(--text-4xl);
  }

  .article-detail__title {
    font-size: var(--text-4xl);
  }
}