:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f172a;
  --bg-card: rgba(22, 33, 62, 0.65);
  --bg-card-hover: rgba(30, 45, 80, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.55);
  --bg-glass-border: rgba(255, 255, 255, 0.08);
  --text-primary: #e8edf5;
  --text-secondary: #a8b8d0;
  --text-muted: #6b7d99;
  --accent-gold: #d4a843;
  --accent-gold-light: #f0c96a;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --gradient-primary: linear-gradient(135deg, #0f172a 0%, #1a2a4a 40%, #2d1b4e 70%, #0f172a 100%);
  --gradient-gold: linear-gradient(135deg, #d4a843 0%, #f0c96a 50%, #d4a843 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 45, 80, 0.7) 0%, rgba(15, 23, 42, 0.5) 100%);
  --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #1a1040 30%, #0d1f3c 60%, #0a0e1a 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(212, 168, 67, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --max-width: 1200px;
  --nav-height: 64px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f0f4fa;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.75);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.6);
    --bg-glass-border: rgba(0, 0, 0, 0.08);
    --text-primary: #1a2332;
    --text-secondary: #4a5a72;
    --text-muted: #8a9ab5;
    --accent-gold: #b8860b;
    --accent-gold-light: #d4a843;
    --gradient-primary: linear-gradient(135deg, #e8eef8 0%, #dce6f5 40%, #e8dff5 70%, #e8eef8 100%);
    --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(240, 244, 250, 0.7) 100%);
    --gradient-hero: linear-gradient(135deg, #e8eef8 0%, #e0d8f0 30%, #d8e8f5 60%, #e8eef8 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px rgba(184, 134, 11, 0.1);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 20px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(212, 168, 67, 0.05), transparent),
    radial-gradient(ellipse 50% 60% at 10% 60%, rgba(139, 92, 246, 0.06), transparent);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-color-scheme: light) {
  body {
    background-image:
      radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.06), transparent),
      radial-gradient(ellipse 60% 40% at 80% 100%, rgba(184, 134, 11, 0.04), transparent),
      radial-gradient(ellipse 50% 60% at 10% 60%, rgba(139, 92, 246, 0.04), transparent);
  }
}

::selection {
  background: rgba(212, 168, 67, 0.3);
  color: var(--text-primary);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(212, 168, 67, 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(212, 168, 67, 0.5);
}

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

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

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

ul, ol {
  list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 24px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 2px;
  transition: width var(--transition-slow);
}

section:hover > h2::after {
  width: 72px;
}

h3 {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin-bottom: 10px;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  margin-bottom: 12px;
}

p:last-child {
  margin-bottom: 0;
}

blockquote {
  position: relative;
  padding: 20px 24px 20px 32px;
  margin: 16px 0;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--bg-glass-border);
  border-left: 3px solid var(--accent-gold);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

blockquote p {
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

dl {
  margin: 0;
}

dt {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 1rem;
  margin-top: 20px;
  margin-bottom: 6px;
  padding-left: 16px;
  position: relative;
}

dt::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(212, 168, 67, 0.5);
}

dd {
  color: var(--text-secondary);
  font-size: 0.95rem;
  padding-left: 16px;
  margin-bottom: 4px;
  line-height: 1.7;
}

ol {
  counter-reset: step-counter;
  padding-left: 0;
}

ol li {
  counter-increment: step-counter;
  position: relative;
  padding: 12px 16px 12px 52px;
  margin-bottom: 10px;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

ol li::before {
  content: counter(step-counter);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-gold);
  color: #0a0e1a;
  font-weight: 800;
  font-size: 0.8rem;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(212, 168, 67, 0.3);
}

ol li:hover {
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

header[role="banner"] {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--bg-glass-border);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

header[role="banner"]:hover {
  box-shadow: var(--shadow-md);
}

nav[aria-label="主导航"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: var(--nav-height);
  gap: 20px;
}

nav[aria-label="主导航"] > a:first-child {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: -0.02em;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: opacity var(--transition-fast);
}

nav[aria-label="主导航"] > a:first-child:hover {
  opacity: 0.85;
}

nav[aria-label="主导航"] ul {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex: 1;
  mask-image: linear-gradient(to right, transparent, black 12px, black calc(100% - 12px), transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 12px, black calc(100% - 12px), transparent);
}

nav[aria-label="主导航"] ul::-webkit-scrollbar {
  display: none;
}

nav[aria-label="主导航"] ul li a {
  display: block;
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

nav[aria-label="主导航"] ul li a:hover {
  color: var(--text-primary);
  background: rgba(212, 168, 67, 0.1);
  transform: translateY(-1px);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 32px) 20px 60px;
}

section {
  margin-bottom: 56px;
  animation: fadeInUp 0.6s ease-out both;
}

section:nth-child(1) { animation-delay: 0.05s; }
section:nth-child(2) { animation-delay: 0.1s; }
section:nth-child(3) { animation-delay: 0.15s; }
section:nth-child(4) { animation-delay: 0.2s; }
section:nth-child(5) { animation-delay: 0.25s; }
section:nth-child(6) { animation-delay: 0.3s; }
section:nth-child(7) { animation-delay: 0.35s; }
section:nth-child(8) { animation-delay: 0.4s; }
section:nth-child(9) { animation-delay: 0.45s; }
section:nth-child(10) { animation-delay: 0.5s; }
section:nth-child(11) { animation-delay: 0.55s; }
section:nth-child(12) { animation-delay: 0.6s; }
section:nth-child(13) { animation-delay: 0.65s; }
section:nth-child(14) { animation-delay: 0.7s; }
section:nth-child(15) { animation-delay: 0.75s; }
section:nth-child(16) { animation-delay: 0.8s; }
section:nth-child(17) { animation-delay: 0.85s; }
section:nth-child(18) { animation-delay: 0.9s; }
section:nth-child(19) { animation-delay: 0.95s; }
section:nth-child(20) { animation-delay: 1s; }
section:nth-child(21) { animation-delay: 1.05s; }
section:nth-child(22) { animation-delay: 1.1s; }
section:nth-child(23) { animation-delay: 1.15s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(212, 168, 67, 0.1); }
  50% { box-shadow: 0 0 40px rgba(212, 168, 67, 0.25); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

#banner {
  position: relative;
  padding: 60px 48px;
  border-radius: var(--radius-xl);
  background: var(--gradient-hero);
  background-size: 200% 200%;
  animation: gradientShift 12s ease infinite, fadeInUp 0.6s ease-out both;
  overflow: hidden;
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  margin-bottom: 64px;
}

#banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 40%, rgba(212, 168, 67, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
  animation: float 8s ease-in-out infinite;
  pointer-events: none;
}

#banner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.02), transparent);
  background-size: 200% 100%;
  animation: shimmer 6s ease-in-out infinite;
  pointer-events: none;
}

#banner h1 {
  position: relative;
  z-index: 1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-gold-light) 50%, var(--text-primary) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 8s linear infinite;
}

#banner p {
  position: relative;
  z-index: 1;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 820px;
  margin-bottom: 16px;
}

#banner p:last-child {
  margin-bottom: 0;
}

#brand,
#about,
#history,
#culture,
#products,
#advantages,
#solutions,
#applications,
#cases,
#reviews,
#news,
#articles,
#knowledge,
#howto,
#faq,
#contact,
#sitemap,
#links,
#legal,
#eeat {
  background: var(--bg-card);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#brand:hover,
#about:hover,
#history:hover,
#culture:hover,
#products:hover,
#advantages:hover,
#solutions:hover,
#applications:hover,
#cases:hover,
#reviews:hover,
#news:hover,
#articles:hover,
#knowledge:hover,
#howto:hover,
#faq:hover,
#contact:hover,
#sitemap:hover,
#links:hover,
#legal:hover,
#eeat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(212, 168, 67, 0.2);
}

#history h3 {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(212, 168, 67, 0.1);
  border: 1px solid rgba(212, 168, 67, 0.2);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--accent-gold);
  margin-top: 20px;
  margin-bottom: 10px;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

#history h3:hover {
  background: rgba(212, 168, 67, 0.2);
  transform: translateX(4px);
}

#history h3:first-of-type {
  margin-top: 0;
}

#culture h3 {
  font-size: 1.1rem;
  color: var(--accent-gold);
  margin-top: 24px;
  margin-bottom: 8px;
}

#culture h3:first-of-type {
  margin-top: 0;
}

#products h3,
#advantages h3,
#solutions h3,
#applications h3,
#cases h3,
#knowledge h3 {
  position: relative;
  padding-left: 18px;
  margin-top: 24px;
  margin-bottom: 8px;
}

#products h3::before,
#advantages h3::before,
#solutions h3::before,
#applications h3::before,
#cases h3::before,
#knowledge h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 18px;
  background: var(--gradient-gold);
  border-radius: 2px;
}

#products h3:first-of-type,
#advantages h3:first-of-type,
#solutions h3:first-of-type,
#applications h3:first-of-type,
#cases h3:first-of-type,
#knowledge h3:first-of-type {
  margin-top: 0;
}

#news article,
#articles article {
  padding: 20px 24px;
  margin-bottom: 16px;
  background: var(--gradient-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#news article:last-child,
#articles article:last-child {
  margin-bottom: 0;
}

#news article:hover,
#articles article:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(212, 168, 67, 0.25);
}

#news article h3,
#articles article h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  transition: color var(--transition-fast);
}

#news article:hover h3,
#articles article:hover h3 {
  color: var(--accent-gold-light);
}

#news article p:first-of-type,
#articles article p:first-of-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-gold);
  margin-top: 8px;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

#articles article a::after {
  content: '→';
  transition: transform var(--transition-fast);
}

#articles article a:hover {
  color: var(--accent-gold-light);
  gap: 8px;
}

#articles article a:hover::after {
  transform: translateX(2px);
}

#reviews blockquote {
  margin-bottom: 14px;
}

#reviews blockquote:last-child {
  margin-bottom: 0;
}

#howto ol {
  margin-top: 16px;
  margin-bottom: 16px;
}

#howto h3 {
  margin-top: 24px;
}

#howto h3:first-of-type {
  margin-top: 0;
}

#faq dl {
  margin-top: 8px;
}

#contact p {
  padding: 8px 0;
  border-bottom: 1px solid var(--bg-glass-border);
  font-size: 0.95rem;
}

#contact p:last-child {
  border-bottom: none;
}

#contact p strong {
  color: var(--accent-gold);
}

#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
  margin-top: 8px;
}

#sitemap ul li a,
#links ul li a {
  display: block;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-align: center;
}

#sitemap ul li a:hover,
#links ul li a:hover {
  background: rgba(212, 168, 67, 0.12);
  border-color: rgba(212, 168, 67, 0.3);
  color: var(--accent-gold-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

#legal h2 {
  font-size: 1.15rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

#legal h2:first-of-type {
  margin-top: 0;
}

#legal h2::after {
  width: 32px;
  height: 2px;
}

#eeat p {
  font-size: 0.92rem;
  padding: 6px 0;
}

#eeat p:first-of-type {
  font-weight: 600;
  color: var(--text-primary);
}

footer[role="contentinfo"] {
  text-align: center;
  padding: 36px 20px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--bg-glass-border);
  margin-top: 20px;
}

footer[role="contentinfo"] p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

footer[role="contentinfo"] p:last-child {
  margin-bottom: 0;
}

@media (max-width: 1024px) {
  main {
    padding-left: 16px;
    padding-right: 16px;
  }

  #banner {
    padding: 48px 32px;
  }

  #brand,
  #about,
  #history,
  #culture,
  #products,
  #advantages,
  #solutions,
  #applications,
  #cases,
  #reviews,
  #news,
  #articles,
  #knowledge,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal,
  #eeat {
    padding: 28px 28px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 56px;
  }

  body {
    font-size: 15px;
  }

  nav[aria-label="主导航"] {
    padding: 0 12px;
    gap: 10px;
  }

  nav[aria-label="主导航"] > a:first-child {
    font-size: 1rem;
  }

  nav[aria-label="主导航"] ul {
    gap: 0;
  }

  nav[aria-label="主导航"] ul li a {
    padding: 6px 8px;
    font-size: 0.75rem;
  }

  main {
    padding: calc(var(--nav-height) + 20px) 12px 40px;
  }

  section {
    margin-bottom: 36px;
  }

  #banner {
    padding: 36px 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
  }

  #banner h1 {
    margin-bottom: 16px;
  }

  #banner p {
    font-size: 0.92rem;
    line-height: 1.75;
  }

  #brand,
  #about,
  #history,
  #culture,
  #products,
  #advantages,
  #solutions,
  #applications,
  #cases,
  #reviews,
  #news,
  #articles,
  #knowledge,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal,
  #eeat {
    padding: 22px 20px;
    border-radius: var(--radius-md);
  }

  h2 {
    font-size: 1.25rem;
    padding-bottom: 10px;
    margin-bottom: 18px;
  }

  h3 {
    font-size: 1rem;
  }

  blockquote {
    padding: 16px 18px 16px 24px;
  }

  ol li {
    padding: 10px 12px 10px 46px;
  }

  ol li::before {
    left: 12px;
    width: 22px;
    height: 22px;
    font-size: 0.72rem;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 6px;
  }

  #sitemap ul li a,
  #links ul li a {
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  #news article,
  #articles article {
    padding: 16px 18px;
  }

  footer[role="contentinfo"] {
    padding: 28px 16px;
  }
}

@media (max-width: 480px) {
  nav[aria-label="主导航"] {
    padding: 0 8px;
  }

  nav[aria-label="主导航"] > a:first-child {
    font-size: 0.9rem;
  }

  nav[aria-label="主导航"] ul li a {
    padding: 5px 6px;
    font-size: 0.7rem;
  }

  main {
    padding-left: 8px;
    padding-right: 8px;
  }

  #banner {
    padding: 28px 18px;
  }

  #banner h1 {
    font-size: 1.35rem;
  }

  #banner p {
    font-size: 0.85rem;
  }

  #brand,
  #about,
  #history,
  #culture,
  #products,
  #advantages,
  #solutions,
  #applications,
  #cases,
  #reviews,
  #news,
  #articles,
  #knowledge,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal,
  #eeat {
    padding: 18px 16px;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: 1fr 1fr;
  }

  #news article,
  #articles article {
    padding: 14px 14px;
  }

  blockquote {
    padding: 14px 14px 14px 20px;
  }

  blockquote:hover {
    transform: translateX(3px);
  }
}

@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;
  }

  section {
    animation: none;
  }

  #banner {
    animation: none;
  }

  #banner::before,
  #banner::after {
    animation: none;
  }
}

@media print {
  header[role="banner"] {
    position: static;
    background: none;
    backdrop-filter: none;
    border-bottom: 1px solid #ccc;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  section {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
    background: none;
    backdrop-filter: none;
  }

  #banner {
    background: none;
    box-shadow: none;
    border: 1px solid #ddd;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  footer[role="contentinfo"] {
    background: none;
    backdrop-filter: none;
  }
}