:root {
  --orange: #ff6b35;
  --orange-dark: #e8551f;
  --orange-light: #ffb199;
  --orange-soft: #fff1eb;
  --red: #e63946;
  --gold: #f4a261;
  --text-main: #2b2118;
  --text-sub: #6b5e52;
  --text-muted: #9a8d80;
  --bg-page: #fff9f5;
  --bg-card: #ffffff;
  --bg-soft: #fff1eb;
  --bg-elevated: #ffffff;
  --border: rgba(255, 107, 53, 0.14);
  --border-strong: rgba(255, 107, 53, 0.28);
  --shadow-sm: 0 2px 8px rgba(255, 107, 53, 0.08);
  --shadow-md: 0 8px 24px rgba(255, 107, 53, 0.12);
  --shadow-lg: 0 16px 48px rgba(255, 107, 53, 0.16);
  --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-xl: 32px;
  --header-h: 72px;
  --max-w: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

body.dark {
  --text-main: #f5ede6;
  --text-sub: #c4b8ad;
  --text-muted: #8f8378;
  --bg-page: #14100d;
  --bg-card: #1e1813;
  --bg-soft: #251d16;
  --bg-elevated: #241c15;
  --border: rgba(255, 139, 92, 0.16);
  --border-strong: rgba(255, 139, 92, 0.32);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
  --glass-bg: rgba(30, 24, 19, 0.72);
  --glass-border: rgba(255, 139, 92, 0.18);
  --orange-soft: #2a1e16;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-page);
  background-image: radial-gradient(
      circle at 100% 0%,
      rgba(255, 107, 53, 0.06),
      transparent 45%
    ),
    radial-gradient(circle at 0% 30%, rgba(244, 162, 97, 0.05), transparent 40%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
}

h2 {
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
}

h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
}

p {
  color: var(--text-sub);
  margin-bottom: 1em;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

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

::selection {
  background: var(--orange);
  color: #fff;
}

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--orange), var(--gold));
  border-radius: 8px;
}

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

#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition), background var(--transition);
}

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

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand svg {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 4px 10px rgba(255, 107, 53, 0.35));
  transition: transform var(--transition);
}

.brand:hover svg {
  transform: rotate(-8deg) scale(1.06);
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--orange), var(--red));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

#main-nav {
  flex: 1;
  min-width: 0;
}

#main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

#main-nav ul::-webkit-scrollbar {
  display: none;
}

#main-nav a {
  display: block;
  padding: 8px 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  position: relative;
  transition: color var(--transition), background var(--transition);
}

#main-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

#main-nav a:hover {
  color: var(--orange);
  background: var(--orange-soft);
}

#main-nav a:hover::after {
  transform: scaleX(1);
}

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

#site-search {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#site-search:focus-within {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

#site-search input {
  border: none;
  outline: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.88rem;
  color: var(--text-main);
  width: 160px;
  padding: 4px 0;
}

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

#site-search button {
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--red));
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition);
}

#site-search button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

#theme-toggle,
#menu-toggle {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  transition: transform var(--transition), background var(--transition),
    box-shadow var(--transition);
}

#theme-toggle:hover,
#menu-toggle:hover {
  transform: translateY(-2px) rotate(8deg);
  box-shadow: var(--shadow-sm);
  background: var(--orange-soft);
}

#menu-toggle {
  display: none;
}

main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 64px;
}

section {
  margin: 56px 0;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

section.visible,
article.visible {
  opacity: 1;
  transform: translateY(0);
}

article {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

section > h2 {
  position: relative;
  padding-left: 20px;
  margin-bottom: 24px;
}

section > h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 1.1em;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--orange), var(--gold));
}

section > h3 {
  margin: 28px 0 12px;
  color: var(--text-main);
}

#hero {
  margin-top: 32px;
  opacity: 1;
  transform: none;
}

.hero-slider {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--orange), var(--gold));
}

.hero-slider .slide {
  display: none;
  animation: fadeIn 0.8s ease;
}

.hero-slider .slide.active {
  display: block;
}

.hero-slider svg {
  width: 100%;
  height: auto;
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.hero-intro {
  margin-top: 28px;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.hero-intro::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.18), transparent 70%);
  pointer-events: none;
}

.hero-intro h1 {
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--orange), var(--red) 60%, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-intro p {
  font-size: 1rem;
  color: var(--text-sub);
  margin-bottom: 0;
}

#breadcrumb {
  margin: 24px 0 0;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

#breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

#breadcrumb li:not(:last-child)::after {
  content: "›";
  color: var(--text-muted);
  font-size: 1rem;
}

#breadcrumb a {
  color: var(--text-sub);
  padding: 2px 4px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

#breadcrumb a:hover {
  color: var(--orange);
  background: var(--orange-soft);
}

#anchor-nav {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

#anchor-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#anchor-nav a {
  display: inline-block;
  padding: 5px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-sub);
  background: var(--bg-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  transition: all var(--transition);
}

#anchor-nav a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--red));
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(255, 107, 53, 0.28);
}

#about,
#history,
#culture,
#products,
#advantages,
#solutions,
#applications,
#cases,
#reviews,
#news,
#articles,
#knowledge,
#faq,
#howto,
#contact,
#sitemap,
#links,
#legal,
#meta-info {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition),
    background var(--transition);
}

#about:hover,
#products:hover,
#solutions:hover,
#news:hover,
#articles:hover,
#faq:hover,
#howto:hover {
  box-shadow: var(--shadow-md);
}

#about p,
#history p,
#culture p,
#products p,
#advantages p,
#solutions p,
#applications p,
#cases p,
#reviews p,
#knowledge p,
#contact p,
#legal p {
  font-size: 0.97rem;
}

#reviews p {
  position: relative;
  padding: 16px 20px 16px 44px;
  margin-bottom: 12px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--orange);
  font-style: italic;
  color: var(--text-sub);
  transition: transform var(--transition), box-shadow var(--transition);
}

#reviews p::before {
  content: "“";
  position: absolute;
  left: 14px;
  top: 2px;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--orange);
  font-family: Georgia, serif;
  opacity: 0.6;
}

#reviews p:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

#news article,
#articles article {
  padding: 22px 24px;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

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

#news article h3,
#articles article h3 {
  font-size: 1.08rem;
  margin-bottom: 8px;
  transition: color var(--transition);
}

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

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

#news article a,
#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--orange);
}

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

#news article a:hover::after,
#articles article a:hover::after {
  transform: translateX(4px);
}

#faq details {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  box-shadow: var(--shadow-sm);
  border-color: var(--border-strong);
}

#faq summary {
  position: relative;
  padding: 16px 48px 16px 20px;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition), background var(--transition);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--orange);
  transition: transform var(--transition);
}

#faq details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

#faq summary:hover {
  color: var(--orange);
  background: rgba(255, 107, 53, 0.06);
}

#faq details p {
  padding: 0 20px 18px;
  margin-bottom: 0;
  font-size: 0.93rem;
  color: var(--text-sub);
  animation: fadeIn 0.35s ease;
}

#howto ol {
  counter-reset: step;
  margin: 16px 0;
}

#howto ol li {
  position: relative;
  padding: 14px 18px 14px 56px;
  margin-bottom: 12px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  color: var(--text-sub);
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--red));
  box-shadow: 0 4px 10px rgba(255, 107, 53, 0.3);
}

#howto ol li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

#contact ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

#contact ul li {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  font-size: 0.92rem;
  color: var(--text-sub);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

#contact ul li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border-strong);
}

#sitemap ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

#sitemap a {
  display: block;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text-sub);
  font-size: 0.9rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

#sitemap a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--orange), var(--red));
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 107, 53, 0.28);
}

#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#links a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-sub);
  font-size: 0.88rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

#links a:hover {
  color: var(--orange);
  border-color: var(--orange);
  background: transparent;
  transform: translateY(-2px);
}

#legal h3 {
  margin-top: 24px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-strong);
}

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

#meta-info ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

#meta-info li {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  font-size: 0.88rem;
  color: var(--text-sub);
  border: 1px solid var(--border);
}

#site-footer {
  position: relative;
  margin-top: 40px;
  padding: 56px 24px 32px;
  background: linear-gradient(160deg, #2b1a12, #1a110c 70%);
  color: #e8ddd4;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.28), transparent 70%);
  pointer-events: none;
}

#site-footer::after {
  content: "";
  position: absolute;
  bottom: -140px;
  left: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(244, 162, 97, 0.18), transparent 70%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: start;
}

.footer-brand p {
  color: #c9bcb1;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.footer-brand p:first-child {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--orange-light), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-content: start;
}

.footer-links a {
  color: #c9bcb1;
  font-size: 0.9rem;
  position: relative;
  padding-bottom: 2px;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-links a:hover::after {
  transform: scaleX(1);
}

.copyright {
  grid-column: 1 / -1;
  margin-top: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.84rem;
  color: #8f8378;
  margin-bottom: 0;
}

#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 900;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--red));
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity var(--transition), transform var(--transition),
    visibility var(--transition), box-shadow var(--transition);
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 32px rgba(255, 107, 53, 0.55);
}

@media (max-width: 1080px) {
  #main-nav a {
    padding: 8px 9px;
    font-size: 0.85rem;
  }

  #site-search input {
    width: 120px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 64px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  #menu-toggle {
    display: flex;
  }

  #main-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--glass-bg);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    backdrop-filter: saturate(180%) blur(24px);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
  }

  #main-nav.open {
    max-height: 70vh;
    overflow-y: auto;
  }

  #main-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 2px;
  }

  #main-nav a {
    padding: 12px 16px;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
  }

  #main-nav a::after {
    display: none;
  }

  #site-search {
    display: none;
  }

  main {
    padding: 0 16px 48px;
  }

  section {
    margin: 40px 0;
  }

  #about,
  #history,
  #culture,
  #products,
  #advantages,
  #solutions,
  #applications,
  #cases,
  #reviews,
  #news,
  #articles,
  #knowledge,
  #faq,
  #howto,
  #contact,
  #sitemap,
  #links,
  #legal,
  #meta-info {
    padding: 22px 18px;
    border-radius: var(--radius-md);
  }

  .hero-intro {
    padding: 22px 18px;
  }

  .hero-slider {
    border-radius: var(--radius-lg);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  #back-to-top {
    right: 16px;
    bottom: 16px;
    width: 44px;
    height: 44px;
  }
}

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

  .brand-name {
    font-size: 1.1rem;
  }

  .brand svg {
    width: 34px;
    height: 34px;
  }

  #theme-toggle,
  #menu-toggle {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .hero-intro h1 {
    font-size: 1.4rem;
  }

  .hero-intro p {
    font-size: 0.92rem;
  }

  #anchor-nav {
    padding: 12px;
  }

  #anchor-nav a {
    font-size: 0.78rem;
    padding: 4px 11px;
  }

  #contact ul,
  #meta-info ul,
  #sitemap ul {
    grid-template-columns: 1fr;
  }

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

  #faq summary {
    padding: 14px 42px 14px 16px;
    font-size: 0.92rem;
  }

  #howto ol li {
    padding: 12px 14px 12px 50px;
  }

  #site-footer {
    padding: 40px 16px 24px;
  }

  .footer-links {
    gap: 8px 16px;
  }
}

@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,
  article {
    opacity: 1;
    transform: none;
  }
}

@media print {
  #site-header,
  #site-footer,
  #back-to-top,
  #anchor-nav,
  .hero-slider {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  section {
    opacity: 1;
    transform: none;
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
}