:root {
  --brand-primary: #1a3d7c;
  --brand-primary-light: #2c5aa0;
  --brand-accent: #f5b301;
  --brand-accent-soft: #ffd45e;
  --bg-base: #f4f7fc;
  --bg-elevated: #ffffff;
  --bg-muted: #eef3fb;
  --text-primary: #14213d;
  --text-secondary: #4a5878;
  --text-muted: #6b7896;
  --border-color: rgba(26, 61, 124, 0.12);
  --border-strong: rgba(26, 61, 124, 0.22);
  --shadow-sm: 0 2px 8px rgba(20, 33, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 33, 61, 0.08);
  --shadow-lg: 0 16px 48px rgba(20, 33, 61, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.55);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --gradient-hero: linear-gradient(135deg, #1a3d7c 0%, #2c5aa0 45%, #3d72c4 75%, #5b8fd6 100%);
  --gradient-accent: linear-gradient(135deg, #f5b301 0%, #ffd45e 100%);
  --gradient-surface: linear-gradient(160deg, rgba(238, 243, 251, 0.9) 0%, rgba(255, 255, 255, 0.95) 100%);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1180px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand-primary: #5b8fd6;
    --brand-primary-light: #7aa8e8;
    --brand-accent: #f5b301;
    --brand-accent-soft: #ffcf4d;
    --bg-base: #0c1220;
    --bg-elevated: #141c30;
    --bg-muted: #1a2438;
    --text-primary: #e8eefb;
    --text-secondary: #a9b6d0;
    --text-muted: #7f8dab;
    --border-color: rgba(120, 155, 210, 0.16);
    --border-strong: rgba(120, 155, 210, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
    --glass-bg: rgba(20, 28, 48, 0.66);
    --glass-border: rgba(120, 155, 210, 0.18);
    --gradient-hero: linear-gradient(135deg, #0f1d3a 0%, #17305c 45%, #1f4178 75%, #2a5596 100%);
    --gradient-surface: linear-gradient(160deg, rgba(26, 36, 56, 0.9) 0%, rgba(20, 28, 48, 0.95) 100%);
  }
}

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

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

body {
  margin: 0;
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-base);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(91, 143, 214, 0.12) 0%, transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(245, 179, 1, 0.09) 0%, transparent 38%),
    radial-gradient(circle at 50% 100%, rgba(44, 90, 160, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  line-height: 1.3;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

h3 {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
}

h4 {
  font-size: 1.05rem;
  color: var(--brand-primary);
}

p {
  margin: 0 0 1em;
  color: var(--text-secondary);
}

ul, ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.45em;
}

li::marker {
  color: var(--brand-accent);
}

blockquote {
  margin: 1.2em 0;
  padding: 1em 1.4em;
  border-left: 4px solid var(--brand-accent);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-sm);
}

blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--text-primary);
}

time {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

address {
  font-style: normal;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

header > div {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.7rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

header a[aria-label] {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  transition: transform var(--transition-fast);
}

header a[aria-label]:hover {
  transform: translateY(-1px);
  color: var(--text-primary);
}

header a[aria-label] svg {
  flex-shrink: 0;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(26, 61, 124, 0.28);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

header a[aria-label]:hover svg {
  transform: rotate(-6deg) scale(1.06);
  box-shadow: 0 6px 18px rgba(245, 179, 1, 0.4);
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
}

header nav li {
  margin: 0;
}

header nav a {
  display: inline-block;
  padding: 0.45rem 0.7rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

header nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

header nav a:hover {
  color: var(--brand-primary);
  background: rgba(91, 143, 214, 0.1);
  transform: translateY(-1px);
}

header nav a:hover::after {
  width: 60%;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

main > nav[aria-label="面包屑导航"] {
  margin-bottom: 1.5rem;
}

main > nav[aria-label="面包屑导航"] ol {
  list-style: none;
  margin: 0;
  padding: 0.55rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  width: fit-content;
  max-width: 100%;
}

main > nav[aria-label="面包屑导航"] li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
}

main > nav[aria-label="面包屑导航"] li + li::before {
  content: "›";
  margin-right: 0.4rem;
  color: var(--brand-accent);
  font-weight: 700;
}

main > nav[aria-label="面包屑导航"] a {
  color: var(--text-secondary);
}

main > nav[aria-label="面包屑导航"] a:hover {
  color: var(--brand-accent);
}

main > nav[aria-label="面包屑导航"] li[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

section {
  margin-bottom: 2.5rem;
  padding: 1.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

section:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

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

@keyframes floatSoft {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

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

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(245, 179, 1, 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(245, 179, 1, 0);
  }
}

main > section {
  animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

main > section:nth-of-type(1) { animation-delay: 0.05s; }
main > section:nth-of-type(2) { animation-delay: 0.1s; }
main > section:nth-of-type(3) { animation-delay: 0.15s; }
main > section:nth-of-type(4) { animation-delay: 0.2s; }
main > section:nth-of-type(5) { animation-delay: 0.25s; }
main > section:nth-of-type(6) { animation-delay: 0.3s; }
main > section:nth-of-type(7) { animation-delay: 0.35s; }
main > section:nth-of-type(8) { animation-delay: 0.4s; }
main > section:nth-of-type(9) { animation-delay: 0.45s; }
main > section:nth-of-type(10) { animation-delay: 0.5s; }
main > section:nth-of-type(11) { animation-delay: 0.55s; }
main > section:nth-of-type(12) { animation-delay: 0.6s; }
main > section:nth-of-type(13) { animation-delay: 0.65s; }

#hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.4rem, 4vw, 3rem);
  background: var(--gradient-hero);
  border: none;
  border-radius: var(--radius-lg);
  color: #ffffff;
  box-shadow: var(--shadow-lg);
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(245, 179, 1, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 12% 85%, rgba(255, 255, 255, 0.14) 0%, transparent 50%);
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  top: -60%;
  left: -20%;
  width: 60%;
  height: 220%;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, 0.12) 50%, transparent 80%);
  transform: rotate(12deg);
  pointer-events: none;
  animation: shimmer 9s linear infinite;
  background-size: 200% 100%;
}

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

#hero h1 {
  color: #ffffff;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
  margin-bottom: 0.7em;
}

#hero h1::before {
  display: none;
}

#hero > p {
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  max-width: 62ch;
}

#hero > p:last-of-type {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin-top: 0.6rem;
  color: rgba(255, 255, 255, 0.6);
}

#hero > p a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-pill);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.35);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

#hero > p a:first-child {
  background: var(--gradient-accent);
  color: #1a3d7c;
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(245, 179, 1, 0.4);
}

#hero > p a:hover {
  transform: translateY(-2px);
  color: #1a3d7c;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
}

#hero figure {
  margin: 1.8rem 0 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

#hero figure:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

#hero figure svg {
  border-radius: var(--radius-sm);
  width: 100%;
}

#hero figcaption {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.02em;
}

#intro h3,
#about h3,
#product h3,
#solution h3,
#cases h3,
#news h3,
#articles h3,
#knowledge h3,
#howto h3 {
  margin-top: 1.5em;
  padding-bottom: 0.35em;
  border-bottom: 1px dashed var(--border-color);
}

#intro h3:first-of-type,
#about h3:first-of-type,
#product h3:first-of-type,
#solution h3:first-of-type,
#cases h3:first-of-type,
#news h3:first-of-type,
#articles h3:first-of-type,
#knowledge h3:first-of-type,
#howto h3:first-of-type {
  margin-top: 0.5em;
}

#product h4 {
  margin-top: 1.3em;
  padding: 0.55rem 0.9rem;
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--brand-accent);
  color: var(--brand-primary);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

#product h4:hover {
  transform: translateX(4px);
  background: rgba(245, 179, 1, 0.12);
}

#about ul,
#product ul,
#howto ul,
#howto ol {
  background: var(--bg-muted);
  padding: 1rem 1rem 1rem 2.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

#about li,
#product li,
#howto li {
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

#about li:hover,
#product li:hover,
#howto li:hover {
  color: var(--text-primary);
  transform: translateX(3px);
}

#cases blockquote {
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

#cases blockquote::before {
  content: "\201C";
  position: absolute;
  top: -0.1em;
  left: 0.5rem;
  font-size: 3rem;
  line-height: 1;
  color: var(--brand-accent);
  opacity: 0.35;
  font-family: Georgia, serif;
}

#cases blockquote:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

#news article,
#articles article {
  position: relative;
  margin-bottom: 1rem;
  padding: 1.25rem 1.4rem;
  background: var(--gradient-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  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::after,
#articles article::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

#news article:hover::after,
#articles article:hover::after {
  opacity: 1;
}

#news article h3,
#articles article h3 {
  margin-top: 0;
  margin-bottom: 0.35em;
  border: none;
  padding: 0;
  font-size: 1.15rem;
  transition: color var(--transition-fast);
}

#news article:hover h3,
#articles article:hover h3 {
  color: var(--brand-primary);
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  background: rgba(245, 179, 1, 0.14);
  color: var(--brand-primary);
  transition: background-color var(--transition-fast), transform var(--transition-fast), color var(--transition-fast);
}

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

#articles article a:hover {
  background: var(--gradient-accent);
  color: #1a3d7c;
  transform: translateY(-1px);
}

#articles article a:hover::after {
  transform: translateX(3px);
}

#faq details {
  margin-bottom: 0.75rem;
  padding: 0.25rem 1.25rem;
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#faq details:last-child {
  margin-bottom: 0;
}

#faq details[open] {
  background: var(--bg-elevated);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

#faq details:hover {
  border-color: var(--border-strong);
}

#faq summary {
  cursor: pointer;
  list-style: none;
  padding: 0.9rem 0;
  font-weight: 600;
  color: var(--text-primary);
  position: relative;
  padding-right: 2rem;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 0.2rem;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 700;
  color: var(--brand-primary);
  background: rgba(245, 179, 1, 0.2);
  border-radius: 50%;
  transition: transform var(--transition-base), background-color var(--transition-base), color var(--transition-base);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  background: var(--gradient-accent);
  color: #1a3d7c;
}

#faq summary:hover {
  color: var(--brand-primary);
}

#faq details p {
  margin: 0 0 1rem;
  padding-top: 0.2rem;
  animation: fadeUp 0.4s ease both;
  color: var(--text-secondary);
}

#howto ol {
  counter-reset: step;
  list-style: none;
  padding-left: 1rem;
}

#howto ol li {
  position: relative;
  padding-left: 2.4rem;
  margin-bottom: 0.8rem;
}

#howto ol li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #1a3d7c;
  background: var(--gradient-accent);
  border-radius: 50%;
  box-shadow: 0 3px 10px rgba(245, 179, 1, 0.35);
}

#contact address {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 1.4rem;
  background: var(--gradient-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

#contact address p {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: baseline;
}

#contact address a {
  font-weight: 600;
  border-bottom: 1px dashed transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

#contact address a:hover {
  border-bottom-color: var(--brand-accent);
}

#sitemap ul,
#links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: inline-block;
  padding: 0.4rem 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

#sitemap a:hover,
#links a:hover {
  transform: translateY(-2px);
  background: var(--gradient-accent);
  color: #1a3d7c;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(245, 179, 1, 0.35);
}

footer {
  margin-top: 1rem;
  padding: 2.5rem 1.25rem 2rem;
  background: var(--gradient-hero);
  color: rgba(255, 255, 255, 0.85);
  border-top: 1px solid var(--border-color);
}

footer > section {
  max-width: var(--max-width);
  margin: 0 auto 1.5rem;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  animation: none;
}

footer > section:hover {
  box-shadow: none;
  border: none;
}

footer > section:last-child {
  margin-bottom: 0;
}

footer h2 {
  color: #ffffff;
  font-size: 1.05rem;
  padding-left: 14px;
  margin-bottom: 0.8em;
}

footer h2::before {
  width: 4px;
  background: var(--gradient-accent);
}

footer h3 {
  color: var(--brand-accent-soft);
  font-size: 0.98rem;
  margin-bottom: 0.5em;
}

footer p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.88rem;
  margin-bottom: 0.5em;
}

footer time {
  color: rgba(255, 255, 255, 0.6);
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
}

footer li {
  margin: 0;
}

footer a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.88rem;
  position: relative;
  transition: color var(--transition-fast);
}

footer a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--brand-accent);
  transition: width var(--transition-base);
}

footer a:hover {
  color: var(--brand-accent-soft);
}

footer a:hover::after {
  width: 100%;
}

footer section[id] {
  padding: 1rem 1.2rem;
  margin-bottom: 0.9rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

footer section[id]:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

footer section[id] p {
  margin: 0;
}

@media (max-width: 900px) {
  header > div {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
  }

  header nav ul {
    justify-content: flex-start;
    gap: 0.1rem;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.3rem;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  header nav ul::-webkit-scrollbar {
    height: 4px;
  }

  header nav ul::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-pill);
  }

  header nav li {
    flex-shrink: 0;
  }

  header nav a {
    font-size: 0.84rem;
    padding: 0.4rem 0.65rem;
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
    line-height: 1.7;
  }

  main {
    padding: 1rem 0.85rem 2.5rem;
  }

  section {
    padding: 1.2rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.6rem;
  }

  #hero {
    padding: 1.6rem 1.1rem;
    border-radius: var(--radius-md);
  }

  #hero > p:last-of-type {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }

  #hero > p a {
    justify-content: center;
    width: 100%;
  }

  h2 {
    padding-left: 14px;
  }

  h2::before {
    width: 4px;
  }

  #hero figure {
    padding: 0.6rem;
  }

  #news article,
  #articles article {
    padding: 1rem;
  }

  #faq details {
    padding: 0.2rem 1rem;
  }

  #contact address {
    padding: 1rem;
  }

  #howto ol li {
    padding-left: 2.1rem;
  }

  footer {
    padding: 1.8rem 0.85rem 1.5rem;
  }

  footer section[id] {
    padding: 0.85rem 1rem;
  }
}

@media (max-width: 380px) {
  header a[aria-label] span {
    font-size: 0.95rem;
  }

  header nav a {
    font-size: 0.8rem;
    padding: 0.35rem 0.55rem;
  }
}

@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;
  }

  #hero::after {
    display: none;
  }
}

@media (hover: none) {
  section:hover,
  #news article:hover,
  #articles article:hover,
  #cases blockquote:hover,
  #hero figure:hover {
    transform: none;
  }
}

@media print {
  header,
  footer,
  #hero > p:last-of-type,
  #sitemap,
  #links {
    display: none;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  section {
    box-shadow: none;
    border: 1px solid #cccccc;
    break-inside: avoid;
    animation: none;
  }

  #hero {
    background: #ffffff;
    color: #000000;
    border: 1px solid #cccccc;
  }

  #hero h1,
  #hero > p,
  #hero figcaption {
    color: #000000;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }
}