@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

/* ===== 重置与基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --c-ink: #0D0D0D;
  --c-crimson: #C62828;
  --c-slate: #263238;
  --c-slate-light: #37474F;
  --c-slate-lighter: #455A64;
  --c-surface: #161C20;
  --c-card: #1C2429;
  --c-card-hover: #222C33;
  --c-text: #E8EAEB;
  --c-text-muted: #90A4AE;
  --c-text-dim: #607D8B;
  --c-crimson-dim: #B71C1C;
  --c-crimson-glow: rgba(198, 40, 40, 0.15);
  --radius-card: 18px;
  --radius-pill: 999px;
  --header-h: 64px;
  --anchor-h: 44px;
  --font: 'Roboto', system-ui, -apple-system, sans-serif;
  --max-w: 1160px;
  --prose-max: 740px;
  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font);
  background-color: var(--c-ink);
  color: var(--c-text);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ===== 可访问性 ===== */
:focus-visible {
  outline: 2px solid var(--c-crimson);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .parallax-layer {
    transform: none !important;
  }
}

/* ===== 页面包装 ===== */
.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(13, 13, 13, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(198, 40, 40, 0.2);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--c-crimson);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
}

.logo-text-mark {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-crimson);
  letter-spacing: -0.03em;
  line-height: 1;
}

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

.pill-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.pill-nav::-webkit-scrollbar {
  display: none;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  min-height: 40px;
  background: var(--c-slate);
  color: var(--c-text);
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
  letter-spacing: 0.01em;
}

.nav-pill:hover {
  background: var(--c-slate-light);
  color: #fff;
}

.nav-pill.active {
  background: var(--c-crimson);
  color: #fff;
}

.header-search {
  flex-shrink: 0;
}

.search-input {
  background: var(--c-slate);
  border: 1px solid var(--c-slate-light);
  border-radius: var(--radius-pill);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 0.875rem;
  padding: 8px 18px;
  width: 180px;
  height: 40px;
  transition: border-color var(--transition), width var(--transition);
}

.search-input::placeholder {
  color: var(--c-text-dim);
}

.search-input:focus {
  outline: none;
  border-color: var(--c-crimson);
  width: 220px;
}

/* ===== 粘性锚点条 ===== */
.sticky-anchor-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: var(--c-slate);
  border-bottom: 2px solid var(--c-crimson);
  height: var(--anchor-h);
  display: flex;
  align-items: center;
}

.anchor-bar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  width: 100%;
}

.anchor-bar-inner::-webkit-scrollbar {
  display: none;
}

.anchor-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  min-height: 32px;
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  white-space: nowrap;
  border-radius: var(--radius-pill);
  transition: color var(--transition), background var(--transition);
}

.anchor-link:hover {
  color: var(--c-text);
  background: rgba(255,255,255,0.07);
}

.anchor-parent {
  color: var(--c-crimson);
}

/* ===== Hero (首页) ===== */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
  padding-top: calc(var(--header-h) + var(--anchor-h));
}

.hero-bg-layer {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(198, 40, 40, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 20% 80%, rgba(38, 50, 56, 0.6) 0%, transparent 60%),
    linear-gradient(160deg, var(--c-ink) 0%, var(--c-slate) 50%, var(--c-ink) 100%);
  will-change: transform;
}

.hero-crimson-stripe {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--c-crimson) 30%, var(--c-crimson) 70%, transparent);
  z-index: 2;
}

.hero-crimson-stripe::before {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to top, rgba(198,40,40,0.08), transparent);
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 24px;
  max-width: 800px;
  animation: heroFadeIn 1s ease both;
}

@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--c-text-muted);
  margin-bottom: 32px;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  min-height: 48px;
  background: var(--c-crimson);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(198, 40, 40, 0.35);
  letter-spacing: 0.02em;
}

.btn-primary:hover {
  background: var(--c-crimson-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(198, 40, 40, 0.45);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  min-height: 48px;
  background: transparent;
  color: var(--c-text);
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--c-slate-lighter);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}

.btn-ghost:hover {
  border-color: var(--c-crimson);
  background: var(--c-crimson-glow);
  color: #fff;
}

/* ===== 专题 / 普通页面横幅 ===== */
.topic-banner,
.tag-banner,
.about-banner,
.privacy-banner,
.default-banner {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + var(--anchor-h) + 48px) 24px 48px;
  background: linear-gradient(160deg, var(--c-slate) 0%, var(--c-ink) 100%);
  border-bottom: 3px solid var(--c-crimson);
}

.parallax-banner {
  min-height: 360px;
  display: flex;
  align-items: center;
}

.banner-bg-layer {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 70% 70% at 80% 30%, rgba(198, 40, 40, 0.1) 0%, transparent 65%),
    linear-gradient(135deg, var(--c-slate) 0%, var(--c-ink) 100%);
  will-change: transform;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.tag-banner-content {
  text-align: center;
}

.eyebrow-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-crimson);
  background: var(--c-crimson-glow);
  border: 1px solid rgba(198, 40, 40, 0.3);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  margin-bottom: 16px;
}

.banner-content h1,
.topic-banner h1,
.tag-banner h1,
.about-banner h1,
.privacy-banner h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.banner-desc {
  font-size: 1.0625rem;
  color: var(--c-text-muted);
  max-width: 640px;
  line-height: 1.65;
}

.banner-stripe {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-crimson), var(--c-slate-lighter));
}

.about-banner-deco {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 1px solid rgba(198, 40, 40, 0.1);
  background: radial-gradient(circle, rgba(198, 40, 40, 0.05), transparent 70%);
  pointer-events: none;
}

/* ===== 主体内容 ===== */
.main-content {
  flex: 1;
  padding: 40px 24px 60px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.content-section {
  margin-bottom: 48px;
}

/* ===== 内容 + 侧边栏布局 ===== */
.content-with-aside {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

/* ===== 正文排版 ===== */
.prose-body {
  min-width: 0;
}

.prose-body h2,
.article-prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-top: 2em;
  margin-bottom: 0.5em;
  letter-spacing: -0.01em;
}

.prose-body h3,
.article-prose h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--c-text);
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.prose-body h2 + hr,
.prose-body h3 + hr,
.article-prose h2 + hr,
.article-prose h3 + hr {
  border: none;
  border-top: 1px solid rgba(198, 40, 40, 0.3);
  margin-bottom: 1em;
}

.prose-body p,
.article-prose p {
  margin-bottom: 1.25em;
  color: var(--c-text);
  font-size: 1rem;
  line-height: 1.8;
}

.prose-body a,
.article-prose a {
  color: var(--c-crimson);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.prose-body a:hover,
.article-prose a:hover {
  color: #ef5350;
}

.prose-body ul,
.prose-body ol,
.article-prose ul,
.article-prose ol {
  padding-left: 1.5em;
  margin-bottom: 1.25em;
}

.prose-body li,
.article-prose li {
  margin-bottom: 0.5em;
  line-height: 1.7;
}

.prose-body blockquote,
.article-prose blockquote {
  border-left: 3px solid var(--c-crimson);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--c-card);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  color: var(--c-text-muted);
  font-style: italic;
}

/* ===== 侧边栏 ===== */
.content-aside {
  position: sticky;
  top: calc(var(--header-h) + var(--anchor-h) + 20px);
  background: var(--c-card);
  border-radius: var(--radius-card);
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.06);
}

.content-aside h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 0.5em;
  letter-spacing: 0.02em;
}

.content-aside h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--c-text-muted);
  margin-top: 1.25em;
  margin-bottom: 0.5em;
}

.content-aside h2 + hr,
.content-aside h3 + hr {
  border: none;
  border-top: 1px solid rgba(198, 40, 40, 0.3);
  margin-bottom: 14px;
}

.content-aside nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-link {
  display: block;
  padding: 8px 12px;
  min-height: 40px;
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: 10px;
  transition: background var(--transition), color var(--transition);
  line-height: 1.5;
  display: flex;
  align-items: center;
}

.aside-link:hover {
  background: var(--c-slate);
  color: var(--c-text);
}

.aside-tags {
  margin-top: 4px;
}

.aside-tags nav {
  flex-direction: row;
  flex-wrap: wrap;
}

/* ===== 标签胶囊 ===== */
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  min-height: 32px;
  background: var(--c-slate);
  color: var(--c-text-muted);
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  margin: 3px;
}

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

/* ===== section heading ===== */
.section-heading {
  font-size: 1.375rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5em;
  letter-spacing: -0.01em;
}

.section-heading + hr {
  border: none;
  border-top: 1px solid rgba(198, 40, 40, 0.3);
  margin-bottom: 24px;
}

/* ===== hr 通用 ===== */
hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: 1em 0;
}

/* ===== 卡片网格 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.card-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  background: var(--c-card);
  border-radius: var(--radius-card);
  text-decoration: none;
  color: var(--c-text);
  border: 1px solid rgba(255,255,255,0.05);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  will-change: transform;
}

.card-block:hover {
  background: var(--c-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.card-block strong {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.55;
}

.card-date {
  font-size: 0.75rem;
  color: var(--c-text-dim);
}

/* ===== 专题卡片 ===== */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background: var(--c-slate);
  border-radius: var(--radius-card);
  text-decoration: none;
  color: var(--c-text);
  border-left: 3px solid var(--c-crimson);
  transition: background var(--transition), transform var(--transition);
  will-change: transform;
}

.topic-card:hover {
  background: var(--c-slate-light);
  transform: translateY(-2px);
}

.topic-card strong {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
}

.topic-card span {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}

/* ===== 文章页 ===== */
.article-header-section {
  padding-top: calc(var(--header-h) + var(--anchor-h) + 32px);
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 32px;
}

.article-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-date {
  font-size: 0.8125rem;
  color: var(--c-text-dim);
}

.breadcrumb-link {
  font-size: 0.8125rem;
  color: var(--c-crimson);
  text-decoration: none;
  padding: 3px 10px;
  background: var(--c-crimson-glow);
  border-radius: var(--radius-pill);
}

.breadcrumb-link:hover {
  text-decoration: underline;
}

.article-h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.article-deck {
  font-size: 1.125rem;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.article-hero-wrap {
  margin-top: 20px;
  border-radius: var(--radius-card);
  overflow: hidden;
}

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

/* ===== 关于页 ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.value-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--c-card);
  border-radius: var(--radius-card);
  border-top: 2px solid var(--c-crimson);
}

.value-item strong {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.value-item span {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  line-height: 1.55;
}

/* ===== 标签结果 ===== */
.tag-results {
  margin-top: 32px;
}

.tag-results h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5em;
}

.tag-results h2 + hr {
  border: none;
  border-top: 1px solid rgba(198, 40, 40, 0.3);
  margin-bottom: 20px;
}

/* ===== 文章日期 ===== */
.article-body-section {
  padding-top: 0;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-slate);
  border-top: 2px solid var(--c-crimson);
  margin-top: auto;
}

.footer-subscribe {
  padding: 40px 24px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer-subscribe-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-section-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5em;
}

.footer-section-title + hr {
  border: none;
  border-top: 1px solid rgba(198, 40, 40, 0.3);
  margin-bottom: 20px;
}

.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.subscribe-input {
  flex: 1;
  min-width: 220px;
  height: 48px;
  background: var(--c-card);
  border: 1px solid var(--c-slate-lighter);
  border-radius: var(--radius-pill);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 0 20px;
  transition: border-color var(--transition);
}

.subscribe-input::placeholder {
  color: var(--c-text-dim);
}

.subscribe-input:focus {
  outline: none;
  border-color: var(--c-crimson);
}

.subscribe-btn {
  flex-shrink: 0;
}

/* ===== 页脚导航 dl ===== */
.footer-nav-section {
  padding: 28px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-nav-section nav {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-dl {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  list-style: none;
}

.footer-dl dt {
  display: flex;
}

.footer-dl dt a,
.footer-dl dd a {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  min-height: 40px;
  color: var(--c-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.footer-dl dt a:hover,
.footer-dl dd a:hover {
  color: var(--c-text);
  background: rgba(255,255,255,0.05);
}

.footer-brand-dt a {
  font-weight: 700;
  color: var(--c-crimson) !important;
  font-size: 1rem !important;
}

/* ===== 页脚底栏 ===== */
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--c-text-dim);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  font-size: 0.8125rem;
  color: var(--c-text-dim);
  text-decoration: none;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--c-crimson);
}

/* ===== 视差动效 ===== */
.parallax-hero .parallax-layer,
.parallax-banner .banner-bg-layer {
  transition: transform 0.1s linear;
}

/* ===== 滚动渐入 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .content-with-aside {
    grid-template-columns: 1fr;
  }

  .content-aside {
    position: static;
  }

  .pill-nav {
    display: none;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 60px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 10px;
  }

  .search-input {
    width: 120px;
  }

  .hero-section {
    min-height: 100svh;
  }

  .hero-h1 {
    font-size: 1.875rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

  .main-content {
    padding: 28px 16px 48px;
  }

  .topic-banner,
  .tag-banner,
  .about-banner,
  .privacy-banner,
  .default-banner {
    padding-top: calc(var(--header-h) + var(--anchor-h) + 28px);
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

  .article-header-section {
    padding-top: calc(var(--header-h) + var(--anchor-h) + 20px);
  }

  .footer-subscribe,
  .footer-nav-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-bottom {
    padding-left: 16px;
    padding-right: 16px;
    flex-direction: column;
    align-items: flex-start;
  }

  .subscribe-form {
    flex-direction: column;
  }

  .subscribe-input {
    min-width: 100%;
  }

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

  .anchor-bar-inner {
    padding: 0 12px;
  }
}

@media (max-width: 400px) {
  .topic-grid {
    grid-template-columns: 1fr;
  }
}