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

/* ===== 变量 ===== */
:root {
  --c-dark: #1A1A2E;
  --c-accent: #E94560;
  --c-cream: #F5F0E8;
  --c-dark-80: rgba(26,26,46,0.8);
  --c-dark-95: rgba(26,26,46,0.95);
  --c-accent-dim: rgba(233,69,96,0.15);
  --c-cream-20: rgba(245,240,232,0.2);
  --c-cream-60: rgba(245,240,232,0.6);
  --font-display: 'Playfair Display SC', Georgia, serif;
  --font-body: 'Karla', system-ui, -apple-system, sans-serif;
  --announce-h: 36px;
  --header-h: 64px;
  --max-w: 1160px;
  --prose-max: 720px;
  --gap: 2rem;
  --r: 0px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--c-dark);
  color: var(--c-cream);
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, menu { list-style: none; }
table { border-collapse: collapse; width: 100%; }
details { display: block; }
summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* ===== 公告条 ===== */
.announce-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--announce-h);
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.announce-bar__text {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-cream);
  white-space: nowrap;
  animation: marquee 18s linear infinite;
}
@keyframes marquee {
  0% { transform: translateX(60px); }
  100% { transform: translateX(-60px); }
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: var(--announce-h);
  left: 0;
  right: 0;
  z-index: 190;
  height: var(--header-h);
  background: var(--c-dark-95);
  border-bottom: 1px solid rgba(245,240,232,0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav-details {
  height: 100%;
}
.nav-summary {
  height: var(--header-h);
  display: flex;
  align-items: center;
  user-select: none;
}
.nav-inner {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
}
.nav-left { display: flex; align-items: center; }
.nav-right { display: flex; align-items: center; justify-content: flex-end; }
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px 8px;
  cursor: pointer;
  transition: var(--transition);
}
.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--c-cream);
  transition: var(--transition);
  transform-origin: center;
}
.nav-details[open] .hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-details[open] .hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-details[open] .hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.site-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  min-height: 44px;
}
.brand-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-cream);
  letter-spacing: 0.04em;
}
.nav-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--c-accent);
  text-transform: uppercase;
}

/* ===== 全屏遮罩导航 ===== */
.nav-overlay {
  position: fixed;
  top: calc(var(--announce-h) + var(--header-h));
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--c-dark-95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 180;
  animation: overlayIn 0.3s ease forwards;
  overflow-y: auto;
}
@keyframes overlayIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.nav-details:not([open]) .nav-overlay { display: none; }
.nav-overlay__inner {
  width: 100%;
  max-width: 680px;
  padding: 3rem 2rem;
  text-align: center;
}
.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.nav-menu li {
  border-bottom: 1px solid rgba(245,240,232,0.08);
}
.nav-menu li:first-child { border-top: 1px solid rgba(245,240,232,0.08); }
.nav-menu__link {
  display: block;
  padding: 1.1rem 1rem;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 2vw, 1.2rem);
  color: var(--c-cream-60);
  letter-spacing: 0.02em;
  transition: var(--transition);
  position: relative;
}
.nav-menu__link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-menu__link:hover,
.nav-menu__link:focus {
  color: var(--c-cream);
}
.nav-menu__link:hover::after { transform: scaleX(1); }
.nav-overlay__tagline {
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: rgba(245,240,232,0.3);
  letter-spacing: 0.08em;
}

/* ===== 主体偏移 ===== */
main, .site-footer {
  padding-top: calc(var(--announce-h) + var(--header-h));
}

/* ===== Hero ===== */
.hero--home {
  position: relative;
  min-height: 45vh;
  background: linear-gradient(135deg, var(--c-dark) 0%, #16213E 60%, #0F3460 100%);
  display: flex;
  align-items: flex-end;
  padding: 4rem 0 5rem;
  overflow: hidden;
}
.hero--home::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(233,69,96,0.12) 0%, transparent 65%);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.hero__eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-accent);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-cream);
  max-width: 14em;
  margin-bottom: 1rem;
}
.hero__sub {
  font-size: 1.05rem;
  color: var(--c-cream-60);
  max-width: 40em;
  margin-bottom: 2rem;
}
.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero__slant {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--c-dark);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  min-height: 32vh;
  background: linear-gradient(135deg, var(--c-dark) 0%, #16213E 100%);
  display: flex;
  align-items: flex-end;
  padding: 3rem 0 4rem;
  overflow: hidden;
}
.article-hero--feature { background: linear-gradient(135deg, #0F0F1E 0%, #1A1A2E 50%, #16213E 100%); }
.article-hero--faq { background: linear-gradient(135deg, #0D1117 0%, #1A1A2E 100%); }
.article-hero--about { background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%); }
.article-hero--privacy { background: linear-gradient(135deg, #111120 0%, #1A1A2E 100%); }
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 80%, rgba(233,69,96,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.article-hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.article-hero__type {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-accent);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}
.article-hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-cream);
  max-width: 18em;
  margin-bottom: 1rem;
}
.article-hero__meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.article-date {
  font-size: 0.78rem;
  color: rgba(245,240,232,0.45);
  letter-spacing: 0.05em;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  min-height: 44px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}
.btn--primary {
  background: var(--c-accent);
  color: var(--c-cream);
}
.btn--primary:hover { background: #d63651; transform: translateY(-1px); }
.btn--ghost {
  background: transparent;
  color: var(--c-cream);
  border: 1px solid rgba(245,240,232,0.3);
}
.btn--ghost:hover { border-color: var(--c-cream); background: var(--c-cream-20); }

/* ===== 布局 ===== */
.content-section {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}
.layout-with-aside {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: start;
}
.main-content { min-width: 0; }

/* ===== 侧边栏 ===== */
.sidebar {
  position: sticky;
  top: calc(var(--announce-h) + var(--header-h) + 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.sidebar__block {
  padding: 1.25rem;
  border: 1px solid rgba(245,240,232,0.08);
  border-left: 3px solid var(--c-accent);
}
.sidebar__block--accent {
  background: var(--c-accent-dim);
  border-color: var(--c-accent);
}
.sidebar__heading {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-cream);
  margin-bottom: 0.25rem;
}
.sidebar .subtitle {
  font-size: 0.72rem;
  color: rgba(245,240,232,0.4);
  letter-spacing: 0.06em;
  margin-bottom: 0.9rem;
}
.sidebar__links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.sidebar__links li a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.83rem;
  color: var(--c-cream-60);
  border-bottom: 1px solid rgba(245,240,232,0.06);
  transition: color var(--transition);
}
.sidebar__links li a:hover { color: var(--c-accent); }
.sidebar__links li.active a { color: var(--c-accent); font-weight: 600; }
.sidebar__tip {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-cream);
  margin-bottom: 0.5rem;
}
.sidebar__cta-link {
  font-size: 0.82rem;
  color: var(--c-accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: opacity var(--transition);
}
.sidebar__cta-link:hover { opacity: 0.7; }

/* ===== 正文 ===== */
.prose {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(245,240,232,0.88);
}
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-cream);
  margin-top: 2.5rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}
.prose h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-cream);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}
.prose p { margin-bottom: 1.2rem; }
.prose ul, .prose ol {
  margin: 1rem 0 1.2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.prose li { line-height: 1.65; }
.prose a {
  color: var(--c-accent);
  border-bottom: 1px solid rgba(233,69,96,0.4);
  transition: border-color var(--transition);
}
.prose a:hover { border-color: var(--c-accent); }
.prose strong { color: var(--c-cream); font-weight: 700; }
.prose blockquote {
  border-left: 3px solid var(--c-accent);
  padding: 0.75rem 1.2rem;
  margin: 1.5rem 0;
  background: rgba(245,240,232,0.04);
  font-style: italic;
}
.prose--legal { font-size: 0.95rem; }

/* ===== 章节头 ===== */
.section-head {
  margin-bottom: 2.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--c-cream);
  letter-spacing: 0.02em;
  margin-bottom: 0.4rem;
}
.section-head .subtitle,
h2 + .subtitle,
h2 + p.subtitle {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.45);
  letter-spacing: 0.06em;
  margin-bottom: 0;
}

/* ===== 卡片 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.card {
  position: relative;
  background: rgba(245,240,232,0.04);
  border: 1px solid rgba(245,240,232,0.08);
  padding: 1.5rem;
  transition: transform var(--transition), background var(--transition);
  overflow: hidden;
  border-radius: var(--r);
}
.card:hover {
  transform: translateY(-3px);
  background: rgba(245,240,232,0.07);
}
.card__accent {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.card:hover .card__accent { transform: scaleX(1); }
.card__num {
  display: block;
  font-size: 2rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--c-accent-dim);
  line-height: 1;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid rgba(233,69,96,0.15);
  padding-bottom: 0.5rem;
}
.card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}
.card__title a { color: var(--c-cream); transition: color var(--transition); }
.card__title a:hover { color: var(--c-accent); }
.card__desc {
  font-size: 0.85rem;
  color: rgba(245,240,232,0.55);
  line-height: 1.6;
}
.card--sm { padding: 1.2rem; }
.feature-related__cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.feature-related { margin-top: 3rem; }
.feature-related h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-cream);
  margin-bottom: 0.3rem;
}

/* ===== 指南列表 ===== */
.guide-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.guide-item {
  border-bottom: 1px solid rgba(245,240,232,0.07);
}
.guide-item:first-child { border-top: 1px solid rgba(245,240,232,0.07); }
.guide-item__link {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0.5rem;
  transition: background var(--transition);
  min-height: 44px;
}
.guide-item__link:hover { background: rgba(245,240,232,0.03); }
.guide-item__index {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--c-accent);
  font-weight: 700;
}
.guide-item__title {
  font-size: 0.95rem;
  color: var(--c-cream-60);
  transition: color var(--transition);
}
.guide-item__link:hover .guide-item__title { color: var(--c-cream); }
.guide-item__arrow {
  color: var(--c-accent);
  font-size: 1rem;
  transition: transform var(--transition);
}
.guide-item__link:hover .guide-item__arrow { transform: translateX(4px); }

/* ===== FAQ ===== */
.faq-intro {
  padding: 1.2rem 1.5rem;
  background: var(--c-accent-dim);
  border-left: 3px solid var(--c-accent);
  margin-bottom: 2rem;
  font-size: 0.95rem;
  color: var(--c-cream-60);
}
.faq-more {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(245,240,232,0.1);
}
.faq-more h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-cream);
  margin-bottom: 0.3rem;
}
.faq-more__grid {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.faq-more__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(245,240,232,0.07);
  min-height: 44px;
  transition: color var(--transition);
}
.faq-more__item:hover { color: var(--c-accent); }
.faq-more__title { font-size: 0.9rem; }
.faq-more__arrow { color: var(--c-accent); font-size: 0.9rem; }

/* ===== 前后文章导航 ===== */
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(245,240,232,0.1);
}
.article-nav a {
  font-size: 0.88rem;
  color: var(--c-accent);
  font-weight: 600;
  transition: opacity var(--transition);
  max-width: 45%;
  line-height: 1.4;
}
.article-nav a:hover { opacity: 0.7; }
.article-nav__next { text-align: right; }

/* ===== 数据表格 ===== */
.table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid rgba(245,240,232,0.08);
}
.data-table {
  font-size: 0.88rem;
  color: rgba(245,240,232,0.8);
}
.data-table thead tr {
  background: rgba(233,69,96,0.12);
}
.data-table th {
  padding: 0.75rem 1rem;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-cream);
  text-align: left;
  border-bottom: 2px solid var(--c-accent);
}
.data-table tbody tr {
  border-bottom: 1px solid rgba(245,240,232,0.06);
  transition: background var(--transition);
}
.data-table tbody tr:hover { background: rgba(245,240,232,0.03); }
.data-table td {
  padding: 0.7rem 1rem;
  vertical-align: middle;
}
.data-table td a { color: var(--c-cream-60); transition: color var(--transition); }
.data-table td a:hover { color: var(--c-cream); }
.table-link {
  color: var(--c-accent) !important;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

/* ===== 关于页索引 ===== */
.about-index { margin-top: 3rem; }
.about-index h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-cream);
  margin-bottom: 0.3rem;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0D0D1A;
  border-top: 1px solid rgba(245,240,232,0.07);
  margin-top: 4rem;
}
.footer-top {
  padding: 3rem 1.5rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  border-bottom: 1px solid rgba(245,240,232,0.06);
}
.footer-brand {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  color: rgba(245,240,232,0.08);
  letter-spacing: 0.04em;
  line-height: 1;
  user-select: none;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 2.5rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-col__heading {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.footer-col__text {
  font-size: 0.83rem;
  color: rgba(245,240,232,0.4);
  line-height: 1.65;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.footer-col ul li a {
  font-size: 0.83rem;
  color: rgba(245,240,232,0.45);
  transition: color var(--transition);
  display: block;
  padding: 0.15rem 0;
  min-height: auto;
}
.footer-col ul li a:hover { color: var(--c-cream); }
.footer-col address {
  font-style: normal;
  margin-top: 1rem;
}
.footer-col address p {
  font-size: 0.75rem;
  color: rgba(245,240,232,0.28);
  line-height: 1.55;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  border-top: 1px solid rgba(245,240,232,0.06);
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: rgba(245,240,232,0.28);
  letter-spacing: 0.05em;
  text-align: center;
}
.footer-bottom ul {
  display: flex;
  gap: 1.5rem;
}
.footer-bottom ul li a {
  font-size: 0.75rem;
  color: rgba(245,240,232,0.3);
  transition: color var(--transition);
  padding: 0.5rem 0;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.footer-bottom ul li a:hover { color: var(--c-cream); }

/* ===== 动效 reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ===== Kinetic 动态标题 ===== */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px) skewY(1deg); }
  to   { opacity: 1; transform: translateY(0) skewY(0); }
}
.kinetic-title {
  animation: fadeSlideIn 0.7s cubic-bezier(0.22,1,0.36,1) both;
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .footer-cols {
    grid-template-columns: repeat(2, 1fr);
  }
  .layout-with-aside {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .sidebar__block {
    flex: 1 1 200px;
  }
}
@media (max-width: 600px) {
  .hero__title { font-size: 1.75rem; }
  .article-hero__title { font-size: 1.4rem; }
  .hero--home { min-height: 40vh; padding: 3rem 0 4rem; }
  .article-hero { min-height: 28vh; padding: 2.5rem 0 3.5rem; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-brand { font-size: 2.2rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .nav-inner { padding: 0 1rem; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .announce-bar__text { font-size: 0.7rem; }
  .feature-related__cards { grid-template-columns: 1fr; }
  .data-table th, .data-table td { padding: 0.55rem 0.65rem; font-size: 0.8rem; }
  .article-nav { flex-direction: column; gap: 0.75rem; }
  .article-nav a { max-width: 100%; }
}