@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:wght@400;600;700&family=EB+Garamond:wght@400;500;600;700;800&display=swap');

/* ============================================================
   CSS 变量 & 重置
   ============================================================ */
:root {
  --c-primary: #C0003C;
  --c-primary-dark: #8a0029;
  --c-primary-light: #e8004a;
  --c-bg: #F5F0E8;
  --c-ink: #1A1A1A;
  --c-ink-soft: #3d3d3d;
  --c-ink-muted: #6b6b6b;
  --c-border: #d4cfc7;
  --c-card-bg: #ffffff;
  --c-card-border: #e8e3db;
  --c-aside-bg: #ede8df;
  --c-announce: #8a0029;
  --c-announce-text: #F5F0E8;

  --font-serif: 'EB Garamond', 'Crimson Text', Georgia, 'Times New Roman', serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-pill: 9999px;
  --radius-card: 28px;
  --radius-sm: 4px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;

  --max-w: 1200px;
  --content-w: 720px;
  --aside-w: 300px;
  --transition: 160ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-ink);
  background: var(--c-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

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

ul, ol, menu {
  list-style: none;
  padding: 0;
}

/* ============================================================
   公告条
   ============================================================ */
.announce-bar {
  background: var(--c-announce);
  color: var(--c-announce-text);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  text-align: center;
  padding: 0.375rem var(--space-sm);
  letter-spacing: 0.03em;
}

/* ============================================================
   页头
   ============================================================ */
.site-header {
  background: var(--c-ink);
  border-bottom: 3px solid var(--c-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-row {
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--c-bg);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.brand-logo:hover .brand-name {
  color: var(--c-primary);
}

/* 导航 details/summary 结构 */
.main-nav {
  padding: 0.5rem var(--space-lg);
}

.nav-details {
  width: 100%;
}

.nav-details[open] > summary {
  display: none;
}

.nav-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  color: var(--c-bg);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.5rem 0;
  list-style: none;
  min-height: 44px;
}

.nav-summary::-webkit-details-marker { display: none; }

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.nav-menu li a {
  display: inline-flex;
  align-items: center;
}

/* ============================================================
   药丸按钮
   ============================================================ */
.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4375rem 1.25rem;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--c-bg);
  border: 2px solid rgba(245,240,232,0.3);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: 40px;
}

.pill-btn:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.pill-btn.active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.pill-btn--lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
  min-height: 48px;
}

.pill-btn--sm {
  padding: 0.3125rem 0.875rem;
  font-size: 0.8125rem;
  min-height: 36px;
}

.pill-btn--inv {
  background: var(--c-bg);
  color: var(--c-primary);
  border-color: var(--c-bg);
}

.pill-btn--inv:hover {
  background: #fff;
  color: var(--c-primary-dark);
  border-color: #fff;
}

/* 非header上下文的pill按钮 */
main .pill-btn,
.footer-cta .pill-btn {
  color: inherit;
}

main .pill-btn {
  background: transparent;
  border-color: var(--c-primary);
  color: var(--c-primary);
}

main .pill-btn:hover {
  background: var(--c-primary);
  color: #fff;
}

main .pill-btn.active {
  background: var(--c-primary);
  color: #fff;
}

/* ============================================================
   main 布局（内容 + 侧栏）
   ============================================================ */
main {
  flex: 1;
  display: flex;
  flex-direction: row;
  gap: 0;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  align-items: flex-start;
}

/* main > div 直接子元素 */
main > div {
  flex: 1;
  min-width: 0;
  padding-right: var(--space-lg);
}

/* main > aside */
main > .site-aside {
  width: var(--aside-w);
  flex-shrink: 0;
  position: sticky;
  top: 120px;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

/* ============================================================
   正文容器
   ============================================================ */
.content-prose {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--c-ink);
}

.content-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--c-ink);
  margin: var(--space-lg) 0 var(--space-sm);
  border-bottom: 3px solid var(--c-primary);
  padding-bottom: 0.4rem;
}

.content-prose h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: var(--space-md) 0 0.5rem;
  color: var(--c-ink);
}

.content-prose p {
  margin-bottom: var(--space-sm);
}

.content-prose ul, .content-prose ol {
  padding-left: 1.5rem;
  margin-bottom: var(--space-sm);
  list-style: initial;
}

.content-prose li {
  margin-bottom: 0.25rem;
}

.content-prose a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.content-prose strong {
  font-weight: 700;
  color: var(--c-ink);
}

/* ============================================================
   section 通用
   ============================================================ */
div > section {
  margin-bottom: var(--space-xl);
}

div > section:first-child {
  margin-top: 0;
}

section h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--c-ink);
  margin-bottom: 0.375rem;
  line-height: 1.25;
}

section h2 + .subtitle,
section h2 + p.subtitle,
section h2 + p.subhead,
section h2 + p.desc,
section h2 + p.lead {
  font-size: 1rem;
  color: var(--c-ink-muted);
  margin-bottom: var(--space-md);
  font-style: italic;
  font-family: var(--font-serif);
}

/* ============================================================
   首页 Hero
   ============================================================ */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  background: var(--c-ink);
  overflow: hidden;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xl) !important;
}

.hero-inner {
  display: flex;
  align-items: center;
  flex: 1;
  min-height: 70vh;
  position: relative;
  z-index: 2;
}

.hero-text {
  flex: 1;
  padding: var(--space-xl) var(--space-xl) var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
}

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--c-bg);
  line-height: 1.15;
  max-width: 480px;
}

.hero-lead {
  font-size: 1.0625rem;
  color: rgba(245,240,232,0.8);
  max-width: 420px;
  line-height: 1.65;
}

.hero-media {
  width: 45%;
  flex-shrink: 0;
  align-self: stretch;
  position: relative;
  overflow: hidden;
}

.hero-img-wrap {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}

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

.hero-media--empty {
  background: var(--c-primary);
  opacity: 0.15;
}

.hero-slash {
  position: absolute;
  top: 0;
  right: 44%;
  width: 80px;
  height: 100%;
  background: var(--c-primary);
  transform: skewX(-8deg);
  z-index: 1;
  opacity: 0.85;
}

/* ============================================================
   卡片网格
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
}

.home-card,
.topic-card,
.tag-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--c-card-border);
  border-bottom: 4px solid var(--c-primary);
  transition: transform var(--transition);
}

.home-card:hover,
.topic-card:hover,
.tag-card:hover {
  transform: translateY(-3px);
}

.card-media {
  overflow: hidden;
  background: var(--c-border);
  aspect-ratio: 16/10;
}

.card-media .card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms ease;
}

.home-card:hover .card-thumb,
.topic-card:hover .card-thumb,
.tag-card:hover .card-thumb {
  transform: scale(1.04);
}

.card-body {
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
}

.card-title a {
  color: var(--c-ink);
}

.card-title a:hover {
  color: var(--c-primary);
}

.card-date {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--c-ink-muted);
}

.card-desc {
  font-size: 0.9375rem;
  color: var(--c-ink-soft);
  line-height: 1.55;
  flex: 1;
}

/* ============================================================
   topic dl 列表（子页列表抽签）
   ============================================================ */
.topic-dl,
.children-dl,
.tag-article-dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.topic-dl dt,
.children-dl dt,
.tag-article-dl dt {
  background: var(--c-ink);
  padding: 0.625rem var(--space-sm);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.topic-dl dt a,
.children-dl dt a,
.tag-article-dl dt a {
  color: var(--c-bg);
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
}

.topic-dl dt a:hover,
.children-dl dt a:hover,
.tag-article-dl dt a:hover {
  color: var(--c-primary);
}

.topic-dl dd,
.children-dl dd,
.tag-article-dl dd {
  background: var(--c-card-bg);
  padding: 0.5rem var(--space-sm);
  font-size: 0.9375rem;
  color: var(--c-ink-muted);
  border-bottom: 1px solid var(--c-border);
}

/* ============================================================
   专题 Banner
   ============================================================ */
.topic-banner {
  background: var(--c-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  min-height: 220px;
  margin-bottom: var(--space-xl) !important;
}

.topic-banner-inner {
  display: flex;
  align-items: center;
  min-height: 220px;
  gap: var(--space-lg);
  padding: var(--space-lg);
}

.topic-banner-text {
  flex: 1;
}

.topic-eyebrow {
  display: inline-block;
  background: rgba(0,0,0,0.25);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.5rem;
}

.topic-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.topic-banner .page-date {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  font-family: var(--font-sans);
}

.topic-banner-img {
  width: 220px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: rgba(0,0,0,0.2);
}

.topic-banner-img .topic-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   文章页头
   ============================================================ */
.article-header-section {
  margin-bottom: var(--space-lg) !important;
}

.breadcrumb {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--c-ink-muted);
  margin-bottom: var(--space-sm);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
}

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

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

.article-header-inner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.article-header-text {
  flex: 1;
}

.article-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 4vw, 2.625rem);
  font-weight: 800;
  color: var(--c-ink);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.article-lead {
  font-size: 1.0625rem;
  color: var(--c-ink-soft);
  margin-bottom: var(--space-sm);
  font-style: italic;
}

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

.article-date {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--c-ink-muted);
  background: var(--c-aside-bg);
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
}

.article-date--mod {
  background: var(--c-border);
}

.article-topic-link {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  background: var(--c-primary);
  padding: 0.2rem 0.875rem;
  border-radius: var(--radius-pill);
}

.article-hero-wrap {
  width: 240px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 3/2;
  background: var(--c-border);
}

.article-hero-wrap .article-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-tags {
  margin-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.tags-label {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--c-ink-muted);
  font-weight: 600;
}

.related-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: var(--space-sm);
}

.related-list li a {
  font-size: 0.9375rem;
  color: var(--c-ink-soft);
  border-left: 3px solid var(--c-primary);
  padding-left: 0.75rem;
  display: block;
  transition: color var(--transition), padding-left var(--transition);
}

.related-list li a:hover {
  color: var(--c-primary);
  padding-left: 1rem;
}

/* ============================================================
   标签页
   ============================================================ */
.tag-header-section {
  background: var(--c-ink);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-xl) !important;
}

.tag-header-inner {
  padding: var(--space-xl) var(--space-lg);
}

.tag-eyebrow {
  display: inline-block;
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.625rem;
}

.tag-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--c-bg);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.tag-header-inner .subtitle {
  color: rgba(245,240,232,0.75);
  margin-bottom: var(--space-md);
  font-style: italic;
  font-family: var(--font-serif);
  font-size: 1rem;
}

.tag-cloud--header .tag-pill {
  background: rgba(255,255,255,0.12);
  color: var(--c-bg);
  border-color: rgba(255,255,255,0.2);
}

.tag-cloud--header .tag-pill:hover,
.tag-cloud--header .tag-pill.active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* ============================================================
   关于页 & 隐私页
   ============================================================ */
.about-header-section,
.privacy-header-section {
  background: var(--c-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-xl) var(--space-lg);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-xl) !important;
}

.about-header-inner,
.privacy-header-inner {
  position: relative;
  z-index: 1;
}

.about-eyebrow,
.privacy-eyebrow {
  display: inline-block;
  background: rgba(0,0,0,0.22);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.625rem;
}

.about-h1,
.privacy-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.about-header-section .subtitle,
.privacy-header-section .subtitle {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  font-style: italic;
  font-family: var(--font-serif);
  margin-bottom: var(--space-sm);
}

.about-header-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 160px;
  height: 160px;
  background: rgba(0,0,0,0.12);
  border-radius: 50%;
}

.page-date {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.75);
  display: block;
  margin-top: 0.5rem;
}

.privacy-dates {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: 0.5rem;
}

.about-topic-list,
.privacy-link-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.about-topic-list li a,
.privacy-link-list li a {
  display: block;
  padding: 0.625rem var(--space-sm);
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--c-ink);
  transition: background var(--transition), color var(--transition);
}

.about-topic-list li a:hover,
.privacy-link-list li a:hover {
  background: var(--c-primary);
  color: #fff;
}

.about-prose,
.privacy-prose {
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: var(--space-lg);
}

/* ============================================================
   侧边栏
   ============================================================ */
.aside-block {
  background: var(--c-aside-bg);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  border: 1px solid var(--c-border);
}

.aside-block h2 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--c-ink);
  margin-bottom: 0.25rem;
  line-height: 1.3;
  font-family: var(--font-serif);
  border-bottom: none;
}

.aside-block h2 + .subtitle {
  font-size: 0.8125rem;
  margin-bottom: 0.75rem;
}

.aside-block h3 {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 0.625rem;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid var(--c-primary);
}

.aside-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.aside-nav li a {
  display: block;
  font-size: 0.9rem;
  color: var(--c-ink-soft);
  padding: 0.25rem 0.375rem;
  border-radius: 2px;
  transition: color var(--transition), background var(--transition);
  line-height: 1.4;
}

.aside-nav li a:hover {
  color: var(--c-primary);
  background: rgba(192,0,60,0.06);
}

/* ============================================================
   标签云
   ============================================================ */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-pill);
  background: var(--c-card-bg);
  border: 1.5px solid var(--c-primary);
  color: var(--c-primary);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  min-height: 32px;
}

.tag-pill:hover,
.tag-pill.active {
  background: var(--c-primary);
  color: #fff;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--c-ink);
  color: var(--c-bg);
  margin-top: auto;
}

.footer-cta {
  background: var(--c-primary);
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.footer-cta-text {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
}

/* footer > section 结构（抽签：footer > section×n）*/
.footer-brand {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-lg) var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.footer-brand-info {
  flex: 1.5;
}

.footer-brand-info .brand-name {
  font-size: 1.25rem;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-brand-info p {
  font-size: 0.9375rem;
  color: rgba(245,240,232,0.65);
  line-height: 1.6;
}

.footer-links-col {
  flex: 1;
}

.footer-links-col h4 {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 0.75rem;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-links-col li a {
  font-size: 0.9rem;
  color: rgba(245,240,232,0.65);
  transition: color var(--transition);
}

.footer-links-col li a:hover {
  color: var(--c-bg);
}

.footer-bottom {
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.copyright {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: rgba(245,240,232,0.5);
  margin-bottom: 0.25rem;
}

.footer-note {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: rgba(245,240,232,0.45);
}

.footer-note a {
  color: rgba(245,240,232,0.6);
  text-decoration: underline;
}

.footer-note a:hover {
  color: var(--c-bg);
}

/* ============================================================
   专题子页列表（topic children card grid 变体）
   ============================================================ */
.cards-grid--topic {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* ============================================================
   过渡动效（prefers-reduced-motion 关闭）
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .home-card,
  .topic-card,
  .tag-card {
    transition: transform 180ms ease;
  }

  .hero-img-wrap .hero-img {
    transition: transform 300ms ease;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   响应式断点
   ============================================================ */

/* 平板 */
@media (max-width: 960px) {
  main {
    flex-direction: column;
    padding: var(--space-md) var(--space-md) var(--space-lg);
  }

  main > div {
    padding-right: 0;
  }

  main > .site-aside {
    width: 100%;
    position: static;
    max-height: none;
    overflow-y: visible;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .aside-block {
    margin-bottom: 0;
  }

  .hero-section {
    min-height: 60vh;
  }

  .hero-inner {
    min-height: 60vh;
  }

  .hero-media {
    width: 40%;
  }

  .footer-brand {
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
  }
}

/* 手机 */
@media (max-width: 600px) {
  .brand-row {
    padding: 0.75rem var(--space-sm);
  }

  .brand-name {
    font-size: 1.125rem;
  }

  .main-nav {
    padding: 0.375rem var(--space-sm);
  }

  .nav-details[open] > summary {
    display: none;
  }

  .nav-menu {
    gap: 0.375rem;
  }

  .pill-btn {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
    min-height: 40px;
  }

  main {
    padding: var(--space-sm) var(--space-sm) var(--space-lg);
    flex-direction: column;
  }

  main > div {
    padding-right: 0;
  }

  main > .site-aside {
    width: 100%;
    position: static;
    max-height: none;
    overflow-y: visible;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .hero-section {
    min-height: auto;
    border-radius: 0;
  }

  .hero-inner {
    flex-direction: column;
    min-height: auto;
  }

  .hero-text {
    padding: var(--space-lg) var(--space-sm) var(--space-md);
    order: 1;
  }

  .hero-media {
    width: 100%;
    order: 0;
    aspect-ratio: 16/9;
    position: relative;
    height: 220px;
  }

  .hero-img-wrap {
    position: absolute;
  }

  .hero-slash {
    display: none;
  }

  .hero-h1 {
    font-size: 1.75rem;
  }

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

  .cards-grid--topic {
    grid-template-columns: 1fr;
  }

  .topic-banner-inner {
    flex-direction: column;
    padding: var(--space-md) var(--space-sm);
    gap: var(--space-sm);
  }

  .topic-banner-img {
    width: 100%;
    aspect-ratio: 16/7;
  }

  .article-header-inner {
    flex-direction: column;
  }

  .article-hero-wrap {
    width: 100%;
    aspect-ratio: 16/8;
  }

  .footer-cta {
    padding: var(--space-md) var(--space-sm);
  }

  .footer-brand {
    flex-direction: column;
    padding: var(--space-md) var(--space-sm);
    gap: var(--space-sm);
  }

  .footer-bottom {
    padding: var(--space-sm);
  }

  .about-topic-list,
  .privacy-link-list {
    grid-template-columns: 1fr;
  }

  section h2 {
    font-size: 1.375rem;
  }

  .announce-bar {
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
  }
}

/* 极小屏 */
@media (max-width: 375px) {
  .hero-h1 {
    font-size: 1.5rem;
  }

  .nav-menu {
    gap: 0.25rem;
  }

  .pill-btn {
    padding: 0.3125rem 0.75rem;
    font-size: 0.8rem;
  }
}