:root {
  --primary: #2b6cb0;
  --primary-dark: #1a365d;
  --primary-light: #4299e1;
  --accent: #f6ad55;
  --accent-dark: #dd6b20;
  --bg: #f7fafc;
  --bg-alt: #edf2f7;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-glass-border: rgba(255, 255, 255, 0.5);
  --text: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.14);
  --shadow-glow: 0 0 0 4px rgba(43, 108, 176, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-hero: linear-gradient(135deg, #2b6cb0 0%, #4299e1 45%, #63b3ed 100%);
  --gradient-accent: linear-gradient(135deg, #f6ad55 0%, #ed8936 100%);
  --gradient-card: linear-gradient(160deg, rgba(255, 255, 255, 0.9) 0%, rgba(237, 242, 247, 0.75) 100%);
  --gradient-dark-card: linear-gradient(160deg, rgba(45, 55, 72, 0.85) 0%, rgba(26, 32, 44, 0.75) 100%);
}

[data-theme="dark"] {
  --primary: #63b3ed;
  --primary-dark: #90cdf4;
  --primary-light: #4299e1;
  --accent: #f6ad55;
  --accent-dark: #ed8936;
  --bg: #0f1419;
  --bg-alt: #1a202c;
  --surface: #1e2733;
  --surface-glass: rgba(30, 39, 51, 0.78);
  --surface-glass-border: rgba(99, 179, 237, 0.18);
  --text: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --border: #2d3748;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 0 4px rgba(99, 179, 237, 0.18);
  --gradient-hero: linear-gradient(135deg, #1a365d 0%, #2b6cb0 45%, #2c5282 100%);
  --gradient-card: linear-gradient(160deg, rgba(45, 55, 72, 0.9) 0%, rgba(26, 32, 44, 0.8) 100%);
  --gradient-dark-card: linear-gradient(160deg, rgba(45, 55, 72, 0.9) 0%, rgba(26, 32, 44, 0.8) 100%);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

a:hover {
  color: var(--accent-dark);
}

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

ul,
ol {
  list-style: none;
}

/* ===== Header ===== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface-glass);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--surface-glass-border);
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo svg {
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-8deg) scale(1.08);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
}

#main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

#main-nav a {
  display: block;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  background: rgba(43, 108, 176, 0.1);
  color: var(--primary);
  transform: translateY(-1px);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

#site-search {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#site-search:focus-within {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

#search-input {
  border: none;
  outline: none;
  padding: 8px 14px;
  font-size: 0.875rem;
  background: transparent;
  color: var(--text);
  width: 180px;
  transition: width var(--transition);
}

#search-input::placeholder {
  color: var(--text-muted);
}

#search-input:focus {
  width: 220px;
}

#site-search button {
  border: none;
  background: var(--gradient-hero);
  color: #fff;
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition);
}

#site-search button:hover {
  opacity: 0.88;
}

#theme-toggle,
#menu-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

#theme-toggle:hover,
#menu-toggle:hover {
  transform: scale(1.1) rotate(8deg);
  box-shadow: var(--shadow-md);
}

#menu-toggle {
  display: none;
}

/* ===== Breadcrumb ===== */
#breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px 0;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

#breadcrumb li + li::before {
  content: "›";
  margin-right: 8px;
  color: var(--text-muted);
}

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

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

/* ===== Main layout ===== */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

section {
  margin-top: 56px;
  scroll-margin-top: 90px;
}

section > h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 20px;
  position: relative;
  padding-left: 18px;
  color: var(--text);
}

section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 70%;
  border-radius: var(--radius-full);
  background: var(--gradient-accent);
}

section > p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

article {
  background: var(--gradient-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-glass-border);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(43, 108, 176, 0.35);
}

article h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--primary);
}

article h4 {
  font-size: 1rem;
  font-weight: 700;
  margin: 16px 0 8px;
  color: var(--text);
}

article p {
  color: var(--text-secondary);
  margin-bottom: 10px;
}

article ul,
article ol {
  padding-left: 4px;
  color: var(--text-secondary);
}

article ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
}

article ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-accent);
}

article ol {
  counter-reset: item;
}

article ol li {
  position: relative;
  padding-left: 34px;
  margin-bottom: 10px;
  counter-increment: item;
}

article ol li::before {
  content: counter(item);
  position: absolute;
  left: 0;
  top: 0.15em;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-hero);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Hero ===== */
#hero {
  margin-top: 28px;
  background: var(--gradient-hero);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#hero::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(246, 173, 85, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  bottom: -50%;
  left: -5%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 179, 237, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
}

.hero-lead {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  max-width: 820px;
  opacity: 0.95;
  margin-bottom: 16px;
}

.hero-question {
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.92rem;
  max-width: 860px;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #1a202c;
  box-shadow: 0 6px 20px rgba(246, 173, 85, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 28px rgba(246, 173, 85, 0.55);
  color: #1a202c;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: translateY(-3px) scale(1.03);
  color: #fff;
}

/* ===== Banner carousel ===== */
#banner-carousel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 34px;
}

#banner-carousel .slide {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

#banner-carousel .slide:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

#banner-carousel figcaption {
  padding: 10px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0, 0, 0, 0.22);
  text-align: center;
}

/* ===== Hero stats ===== */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.hero-stats li {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.9);
  transition: transform var(--transition), background var(--transition);
}

.hero-stats li:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.2);
}

.stat-num {
  display: block;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

/* ===== News list ===== */
#news ul li {
  background: var(--gradient-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-glass-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  padding-left: 18px;
}

#news ul li::before {
  content: none;
}

#news ul li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

#news time {
  display: inline-block;
  font-weight: 700;
  color: var(--primary);
  margin-right: 8px;
  font-variant-numeric: tabular-nums;
}

/* ===== Article cards ===== */
.article-card {
  position: relative;
  overflow: hidden;
}

.article-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

.article-card:hover::after {
  transform: scaleY(1);
}

.article-card .meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.article-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(43, 108, 176, 0.1);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.article-card a::after {
  content: "→";
  transition: transform var(--transition);
}

.article-card a:hover {
  background: var(--gradient-hero);
  color: #fff;
  transform: translateX(4px);
}

.article-card a:hover::after {
  transform: translateX(4px);
}

/* ===== FAQ details ===== */
#faq details {
  background: var(--gradient-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(43, 108, 176, 0.35);
}

#faq summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: color var(--transition), background var(--transition);
}

#faq summary::-webkit-details-marker {
  display: none;
}

#faq summary::after {
  content: "+";
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(43, 108, 176, 0.12);
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

#faq details[open] summary {
  color: var(--primary);
}

#faq details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--gradient-hero);
  color: #fff;
}

#faq details p {
  padding: 0 20px 18px;
  color: var(--text-secondary);
  animation: fadeSlide 0.35s ease;
}

/* ===== Blockquote ===== */
blockquote {
  position: relative;
  background: rgba(43, 108, 176, 0.07);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px 16px 46px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-style: italic;
  transition: background var(--transition), transform var(--transition);
}

blockquote::before {
  content: "“";
  position: absolute;
  left: 14px;
  top: 6px;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--accent);
  font-family: Georgia, serif;
}

blockquote:hover {
  background: rgba(43, 108, 176, 0.12);
  transform: translateX(4px);
}

/* ===== Contact / address ===== */
address {
  font-style: normal;
}

address ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

address li {
  background: var(--gradient-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-glass-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition);
}

address li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

address strong {
  color: var(--primary);
}

/* ===== Sitemap & links ===== */
#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

#sitemap a:hover,
#links a:hover {
  background: var(--gradient-hero);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

/* ===== Footer ===== */
#site-footer {
  background: var(--gradient-hero);
  color: rgba(255, 255, 255, 0.92);
  padding: 44px 20px 30px;
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(246, 173, 85, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.footer-inner p {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer-inner nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.footer-inner nav a {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: background var(--transition), transform var(--transition), color var(--transition);
}

.footer-inner nav a:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Back to top ===== */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-accent);
  color: #1a202c;
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.85);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 999;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 14px 34px rgba(246, 173, 85, 0.5);
}

/* ===== Scroll reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(246, 173, 85, 0.45);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(246, 173, 85, 0);
  }
}

.stat-num {
  animation: pulseGlow 2.6s ease-in-out infinite;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  #main-nav ul {
    gap: 2px;
  }

  #main-nav a {
    padding: 6px 9px;
    font-size: 0.84rem;
  }

  #search-input {
    width: 140px;
  }

  #search-input:focus {
    width: 170px;
  }
}

@media (max-width: 860px) {
  .header-inner {
    flex-wrap: wrap;
  }

  #main-nav {
    order: 3;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
  }

  #main-nav.open {
    max-height: 520px;
  }

  #main-nav ul {
    flex-direction: column;
    padding: 10px 0 6px;
    gap: 2px;
  }

  #main-nav a {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.92rem;
  }

  #menu-toggle {
    display: flex;
  }

  #banner-carousel {
    grid-template-columns: 1fr;
  }

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

  #hero {
    padding: 34px 22px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 10px 14px;
  }

  .logo-text {
    font-size: 1.05rem;
  }

  #site-search {
    flex: 1;
  }

  #search-input {
    width: 100%;
    min-width: 0;
  }

  #search-input:focus {
    width: 100%;
  }

  #site-search button {
    padding: 8px 12px;
    font-size: 0.8rem;
  }

  main {
    padding: 0 14px 44px;
  }

  section {
    margin-top: 40px;
  }

  article {
    padding: 20px 18px;
    border-radius: var(--radius-md);
  }

  #hero {
    padding: 28px 18px;
    border-radius: var(--radius-md);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  address ul {
    grid-template-columns: 1fr;
  }

  #back-to-top {
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
  }
}

/* ===== Accessibility & motion ===== */
@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;
  }
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection {
  background: var(--accent);
  color: #1a202c;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}