@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700&display=swap');

/* ─── 变量 ─── */
:root {
  --c-base: #261717;
  --c-red: #ff0000;
  --c-purple: #8b00ff;
  --c-glass-bg: rgba(255, 255, 255, 0.10);
  --c-glass-border: rgba(255, 255, 255, 0.18);
  --c-glass-hover: rgba(255, 255, 255, 0.16);
  --c-text: #f5e8e8;
  --c-text-muted: rgba(245, 232, 232, 0.65);
  --c-red-dim: rgba(255, 0, 0, 0.18);
  --c-purple-dim: rgba(139, 0, 255, 0.18);
  --radius-card: 4px;
  --radius-pill: 999px;
  --font-head: 'Poppins', system-ui, sans-serif;
  --font-body: 'Open Sans', system-ui, sans-serif;
  --nav-h: 64px;
  --max-w: 1200px;
  --prose-w: 780px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--c-base);
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, menu { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.25; }

/* ─── 全局背景 ─── */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: radial-gradient(ellipse at 20% 30%, rgba(139,0,255,0.28) 0%, transparent 55%),
              radial-gradient(ellipse at 80% 70%, rgba(255,0,0,0.22) 0%, transparent 50%),
              var(--c-base);
}
.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.bg-glow-1 {
  width: 600px; height: 600px;
  top: -100px; left: -100px;
  background: var(--c-purple-dim);
  animation: glow-drift 12s ease-in-out infinite alternate;
}
.bg-glow-2 {
  width: 500px; height: 500px;
  bottom: -100px; right: -80px;
  background: var(--c-red-dim);
  animation: glow-drift 9s ease-in-out infinite alternate-reverse;
}
@keyframes glow-drift {
  from { transform: translate(0, 0); }
  to   { transform: translate(40px, 30px); }
}

/* ─── 玻璃卡片 ─── */
.glass-card {
  background: var(--c-glass-bg);
  -webkit-backdrop-filter: blur(15px);
  backdrop-filter: blur(15px);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-card);
  position: relative;
  z-index: 1;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.glass-card:hover {
  background: var(--c-glass-hover);
  box-shadow: 0 8px 32px rgba(139,0,255,0.18), 0 2px 8px rgba(255,0,0,0.10);
  transform: translateY(-2px);
}

/* ─── 导航 ─── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
}
.site-nav summary { list-style: none; }
.site-nav summary::-webkit-details-marker { display: none; }

.nav-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  height: var(--nav-h);
  background: rgba(38, 23, 23, 0.72);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c-glass-border);
  cursor: default;
}

.nav-brand { flex-shrink: 0; }
.nav-brand a { display: flex; align-items: center; }
.brand-icon { width: 36px; height: 36px; border-radius: 8px; }
.brand-icon-text {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--c-red), var(--c-purple));
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  letter-spacing: 0.02em;
}

.nav-pills {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  flex-wrap: nowrap;
  overflow: hidden;
}
.pill-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  min-height: 40px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-family: var(--font-head);
  font-weight: 500;
  color: var(--c-text-muted);
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}
.pill-link:hover,
.pill-link.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}
.pill-link.active {
  background: var(--c-red-dim);
  color: var(--c-red);
}

.nav-cta, .pill-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  min-height: 40px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--c-red), var(--c-purple));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity var(--transition), box-shadow var(--transition);
}
.nav-cta:hover {
  opacity: 0.85;
  box-shadow: 0 4px 16px rgba(255,0,0,0.3);
}

.nav-toggle-icon {
  display: none;
  font-size: 22px;
  color: var(--c-text);
  padding: 8px;
  cursor: pointer;
}

.nav-dropdown {
  border-top: none;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  padding: 16px 24px;
  display: none;
}
details[open] .nav-dropdown { display: block; }
.nav-dropdown-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.nav-dropdown-list .pill-link { font-size: 14px; }

/* ─── 按钮 ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  min-height: 48px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--c-red), var(--c-purple));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  transition: opacity var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn-primary:hover {
  opacity: 0.88;
  box-shadow: 0 6px 24px rgba(255,0,0,0.35);
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 11px 26px;
  min-height: 48px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--c-glass-border);
  color: var(--c-text);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-ghost:hover {
  border-color: var(--c-red);
  background: var(--c-red-dim);
  transform: translateY(-1px);
}
.btn-sm { padding: 8px 20px; min-height: 40px; font-size: 13px; }

/* ─── Hero（首页）─── */
.hero-section {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.hero-bg-num {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(160px, 28vw, 380px);
  color: rgba(255,255,255,0.03);
  right: -0.05em;
  bottom: -0.1em;
  line-height: 1;
  user-select: none;
  pointer-events: none;
  letter-spacing: -0.04em;
}
.hero-inner {
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  gap: 24px;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px;
  align-items: center;
}
.hero-text {
  text-align: right;
  padding: 24px 0;
}
.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-red);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero-h1 {
  font-size: clamp(26px, 4vw, 52px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}
.hero-desc {
  font-size: 16px;
  color: var(--c-text-muted);
  margin-bottom: 28px;
  max-width: 420px;
  margin-left: auto;
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ─── 双图拼贴 ─── */
.hero-collage {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-collage-left { transform: translateY(32px); }
.hero-collage-right { transform: translateY(-32px); }

.collage-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  min-height: 160px;
  cursor: default;
  transition: transform var(--transition), box-shadow var(--transition);
}
.collage-card:hover {
  transform: scale(1.02) translateY(-2px);
  box-shadow: 0 12px 40px rgba(139,0,255,0.25);
}
.collage-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.collage-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(38,23,23,0.88) 0%, transparent 60%);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.collage-num {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-red);
  margin-bottom: 4px;
}
.collage-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
}
.collage-title a { color: #fff; }
.collage-desc {
  font-size: 11px;
  color: var(--c-text-muted);
  line-height: 1.4;
}

/* ─── 主内容区 ─── */
#main-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.content-article {}

/* ─── 正文容器 ─── */
.prose-section {
  max-width: var(--prose-w);
  margin: 0 auto 48px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
}
.prose-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-glass-border);
}
.prose-section h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 10px;
  color: rgba(255,255,255,0.9);
}
.prose-section p { margin-bottom: 16px; }
.prose-section ul, .prose-section ol {
  padding-left: 24px;
  margin-bottom: 16px;
}
.prose-section li { margin-bottom: 6px; }
.prose-section a { color: var(--c-red); text-decoration: underline; text-underline-offset: 3px; }
.prose-section a:hover { color: var(--c-purple); }
.prose-section time { color: var(--c-text-muted); font-size: 14px; }
.prose-section strong { color: #fff; font-weight: 600; }
.prose-section blockquote {
  border-left: 3px solid var(--c-red);
  padding: 12px 20px;
  background: var(--c-red-dim);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  margin: 20px 0;
  font-style: italic;
}

/* ─── 标签 ─── */
.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: var(--c-purple-dim);
  color: rgba(200,150,255,0.9);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background var(--transition);
}
.eyebrow-tag:hover { background: rgba(139,0,255,0.3); }
.date-tag {
  font-size: 12px;
  color: var(--c-text-muted);
  font-weight: 500;
}
.meta-sep { color: var(--c-text-muted); margin: 0 6px; }
.mod-date { font-size: 12px; color: var(--c-text-muted); }

/* ─── 区块标题 ─── */
.section-heading {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}
.section-heading::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 70%;
  background: linear-gradient(to bottom, var(--c-red), var(--c-purple));
  border-radius: 2px;
}

/* ─── 文章卡片格子（首页）─── */
.articles-section { margin-top: 48px; }
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.article-item { list-style: none; }
.article-card {
  padding: 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.article-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}
.article-card-title a {
  color: #fff;
  transition: color var(--transition);
}
.article-card-title a:hover { color: var(--c-red); }
.article-card-desc {
  font-size: 14px;
  color: var(--c-text-muted);
  flex: 1;
  line-height: 1.6;
}
.read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-red);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
  transition: color var(--transition), gap var(--transition);
}
.read-more:hover { color: var(--c-purple); gap: 8px; }

/* ─── 栏目英雄 ─── */
.topic-hero {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-h) + 48px);
  padding-bottom: 48px;
  overflow: hidden;
  border-bottom: 1px solid var(--c-glass-border);
  background: rgba(38,23,23,0.3);
}
.topic-hero-bg-num {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(100px, 18vw, 280px);
  color: rgba(255,255,255,0.03);
  right: 0.02em; bottom: -0.1em;
  line-height: 1;
  user-select: none;
  pointer-events: none;
}
.topic-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.topic-h1 {
  font-size: clamp(24px, 4vw, 46px);
  font-weight: 700;
  color: #fff;
  margin: 12px 0 16px;
}
.topic-desc {
  font-size: 16px;
  color: var(--c-text-muted);
  max-width: 680px;
  line-height: 1.7;
}

/* ─── 子页列表 ─── */
.children-section { margin-top: 48px; }
.child-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.child-item { list-style: none; }
.child-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.child-card-media { overflow: hidden; height: 160px; }
.child-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.child-card:hover .child-card-img { transform: scale(1.04); }
.child-card-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.child-num {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-red);
}
.child-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}
.child-card-title a { color: #fff; transition: color var(--transition); }
.child-card-title a:hover { color: var(--c-red); }
.child-card-desc {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.6;
  flex: 1;
}

/* ─── 文章英雄带 ─── */
.article-hero-band {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-h) + 32px);
  padding-bottom: 40px;
  background: rgba(38,23,23,0.3);
  border-bottom: 1px solid var(--c-glass-border);
  overflow: hidden;
}
.article-bg-num {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(80px, 14vw, 220px);
  color: rgba(255,255,255,0.03);
  right: 0.04em; bottom: -0.1em;
  line-height: 1;
  user-select: none;
  pointer-events: none;
}
.article-hero-media {
  max-width: var(--max-w);
  margin: 0 auto 24px;
  padding: 0 24px;
}
.article-hero-img {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius-card);
}
.article-hero-text {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.article-h1 {
  font-size: clamp(22px, 3.5vw, 40px);
  font-weight: 700;
  color: #fff;
  margin: 14px 0 16px;
}
.article-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── 面包屑 ─── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-text-muted);
}
.breadcrumb a { color: var(--c-text-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--c-red); }
.breadcrumb span:not([aria-hidden]) { color: rgba(255,255,255,0.7); }

/* ─── 相关内容（文章）─── */
.related-section { margin-top: 48px; }
.sibling-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.sibling-item { list-style: none; }
.sibling-card { padding: 20px; }
.sibling-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.sibling-title a { color: #fff; transition: color var(--transition); }
.sibling-title a:hover { color: var(--c-red); }
.sibling-desc { font-size: 13px; color: var(--c-text-muted); line-height: 1.55; }

.article-footer-nav {
  margin-top: 40px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* ─── About 英雄 ─── */
.about-hero {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-h) + 48px);
  padding-bottom: 56px;
  border-bottom: 1px solid var(--c-glass-border);
  overflow: hidden;
}
.about-bg-num {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(80px, 16vw, 260px);
  color: rgba(255,255,255,0.03);
  right: 0.02em; bottom: -0.1em;
  line-height: 1;
  user-select: none;
  pointer-events: none;
}
.about-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.about-h1 {
  font-size: clamp(24px, 4vw, 48px);
  font-weight: 700;
  color: #fff;
  margin: 12px 0 18px;
}
.about-lead {
  font-size: 17px;
  color: var(--c-text-muted);
  max-width: 640px;
  line-height: 1.75;
}

.about-links-section {
  max-width: var(--prose-w);
  margin: 48px auto 0;
  padding: 32px;
}
.about-quick-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.about-quick-btn { min-height: 44px; }

/* ─── Privacy 英雄 ─── */
.privacy-hero {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-h) + 48px);
  padding-bottom: 48px;
  border-bottom: 1px solid var(--c-glass-border);
  overflow: hidden;
}
.privacy-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.privacy-h1 {
  font-size: clamp(22px, 3.5vw, 44px);
  font-weight: 700;
  color: #fff;
  margin: 12px 0 16px;
}
.privacy-lead {
  font-size: 16px;
  color: var(--c-text-muted);
  max-width: 620px;
  line-height: 1.7;
}
.privacy-prose { border: 1px solid var(--c-glass-border); border-radius: var(--radius-card); padding: 32px; background: var(--c-glass-bg); }
.privacy-footer-nav {
  max-width: var(--prose-w);
  margin: 32px auto 0;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── 页脚 ─── */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--c-glass-border);
  padding: 0 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 40px;
  margin: 40px 0 20px;
}
.footer-logo { margin-bottom: 12px; }
.footer-logo-img { width: 40px; height: 40px; border-radius: 8px; }
.footer-brand-name {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--c-red), var(--c-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand-desc {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.65;
}
.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 16px;
}
.footer-link-list { display: flex; flex-direction: column; gap: 10px; }
.footer-link-list a {
  font-size: 14px;
  color: var(--c-text-muted);
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-link-list a:hover { color: var(--c-red); }

.footer-subscribe {
  padding: 24px 32px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.subscribe-label {
  font-size: 15px;
  color: var(--c-text-muted);
  flex: 1;
}
.subscribe-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.footer-bottom {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0 28px;
  font-size: 13px;
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-glass-border);
  flex-wrap: wrap;
}
.footer-bottom a {
  color: var(--c-text-muted);
  transition: color var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}
.footer-bottom a:hover { color: var(--c-red); }

/* ─── 栏目文章布局 ─── */
.topic-article > .prose-section {
  padding-top: 48px;
}

/* ─── 动效：交错淡入 ─── */
@media (prefers-reduced-motion: no-preference) {
  .article-item,
  .child-item,
  .sibling-item,
  .collage-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fade-up 0.5s ease forwards;
    animation-delay: calc(var(--stagger, 0) * 80ms + 100ms);
  }
}
@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .article-item,
  .child-item,
  .sibling-item,
  .collage-card,
  .bg-glow-1,
  .bg-glow-2 {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .glass-card { transition: none; }
}

/* ─── 响应式 ─── */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .hero-text { text-align: left; order: -1; }
  .hero-actions { justify-content: flex-start; }
  .hero-desc { margin-left: 0; }
  .hero-collage-left,
  .hero-collage-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    transform: none;
  }

  .nav-pills { display: none; }
  .nav-toggle-icon { display: flex; }
  .nav-cta { display: none; }

  .footer-top { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 600px) {
  .hero-section { min-height: auto; padding-bottom: 40px; }
  .hero-h1 { font-size: 26px; }
  .hero-collage-left,
  .hero-collage-right { grid-template-columns: 1fr; }

  .article-grid { grid-template-columns: 1fr; }
  .child-grid { grid-template-columns: 1fr; }
  .sibling-grid { grid-template-columns: 1fr; }

  .footer-subscribe {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-bar { padding: 0 16px; gap: 8px; }

  .about-hero-inner,
  .topic-hero-inner,
  .article-hero-text {
    padding: 0 16px;
  }
  #main-content { padding: 32px 16px 48px; }
  .site-footer { padding: 0 16px; }

  .footer-top { padding: 24px 20px; }
  .footer-subscribe { padding: 20px; }

  .privacy-prose { padding: 20px 18px; }
  .about-links-section { padding: 24px 20px; }
}