:root {
  --color-primary: #8B5E3C;
  --color-primary-dark: #6E4829;
  --color-primary-light: #A97B55;
  --color-accent: #C9A227;
  --color-accent-soft: #E0C766;
  --color-bg: #FBF6EE;
  --color-bg-alt: #F5E6D3;
  --color-surface: #FFFFFF;
  --color-surface-glass: rgba(255, 255, 255, 0.62);
  --color-text: #3A2A1E;
  --color-text-soft: #6B5645;
  --color-text-muted: #8C7A68;
  --color-border: rgba(139, 94, 60, 0.18);
  --color-border-strong: rgba(139, 94, 60, 0.32);
  --shadow-sm: 0 2px 8px rgba(58, 42, 30, 0.06);
  --shadow-md: 0 8px 24px rgba(58, 42, 30, 0.10);
  --shadow-lg: 0 18px 48px rgba(58, 42, 30, 0.16);
  --shadow-glow: 0 0 0 1px rgba(201, 162, 39, 0.25), 0 12px 32px rgba(139, 94, 60, 0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --gradient-hero: linear-gradient(135deg, #8B5E3C 0%, #B07A4E 42%, #C9A227 100%);
  --gradient-hero-soft: linear-gradient(135deg, rgba(139, 94, 60, 0.92) 0%, rgba(176, 122, 78, 0.86) 45%, rgba(201, 162, 39, 0.82) 100%);
  --gradient-accent: linear-gradient(120deg, #C9A227 0%, #E0C766 100%);
  --gradient-surface: linear-gradient(160deg, rgba(255, 255, 255, 0.9) 0%, rgba(245, 230, 211, 0.7) 100%);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", Georgia, serif;
  --header-height: 72px;
  --max-width: 1200px;
  --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: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}

html[data-theme="dark"] {
  --color-primary: #D9A876;
  --color-primary-dark: #C08F5E;
  --color-primary-light: #E8C39A;
  --color-accent: #E0C766;
  --color-accent-soft: #F0DC94;
  --color-bg: #16110D;
  --color-bg-alt: #1F1813;
  --color-surface: #241C16;
  --color-surface-glass: rgba(36, 28, 22, 0.62);
  --color-text: #F3E9DC;
  --color-text-soft: #CDBBA6;
  --color-text-muted: #9C8A78;
  --color-border: rgba(217, 168, 118, 0.18);
  --color-border-strong: rgba(217, 168, 118, 0.34);
  --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 18px 48px rgba(0, 0, 0, 0.58);
  --shadow-glow: 0 0 0 1px rgba(224, 199, 102, 0.22), 0 12px 32px rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #3A2818 0%, #5A3D24 45%, #8A6A26 100%);
  --gradient-hero-soft: linear-gradient(135deg, rgba(58, 40, 24, 0.94) 0%, rgba(90, 61, 36, 0.88) 45%, rgba(138, 106, 38, 0.84) 100%);
  --gradient-accent: linear-gradient(120deg, #E0C766 0%, #F0DC94 100%);
  --gradient-surface: linear-gradient(160deg, rgba(36, 28, 22, 0.92) 0%, rgba(31, 24, 19, 0.78) 100%);
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(201, 162, 39, 0.10) 0%, transparent 38%),
    radial-gradient(circle at 88% 0%, rgba(139, 94, 60, 0.12) 0%, transparent 42%),
    radial-gradient(circle at 50% 100%, rgba(201, 162, 39, 0.06) 0%, transparent 50%);
  background-attachment: fixed;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

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

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

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  line-height: 1.35;
  color: var(--color-text);
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); font-weight: 700; }

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

ul, ol {
  padding-left: 1.4em;
  margin: 0 0 1em;
  color: var(--color-text-soft);
}

li {
  margin-bottom: 0.5em;
}

strong {
  color: var(--color-text);
  font-weight: 700;
}

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

blockquote p {
  margin: 0;
  font-style: italic;
}

time {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

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

/* ============ Header ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface-glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 800;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

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

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

.brand a:hover svg {
  transform: rotate(90deg) scale(1.06);
}

#main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

#main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#main-nav li {
  margin: 0;
}

#main-nav a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  color: var(--color-text-soft);
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  background: rgba(201, 162, 39, 0.14);
  color: var(--color-primary);
  transform: translateY(-1px);
}

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

#site-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 4px 4px 4px 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

#site-search:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.18);
}

#search-input {
  border: none;
  background: transparent;
  font: inherit;
  font-size: 0.875rem;
  color: var(--color-text);
  width: 160px;
  padding: 6px 0;
}

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

#search-input:focus {
  outline: none;
}

#site-search button,
#theme-toggle,
#menu-toggle {
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  background: var(--gradient-accent);
  color: #3A2A1E;
  font-weight: 700;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
  white-space: nowrap;
}

#site-search button:hover,
#theme-toggle:hover,
#menu-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.05);
}

#theme-toggle,
#menu-toggle {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

#menu-toggle {
  display: none;
}

/* ============ Hero ============ */
#hero {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 16px;
}

.hero-carousel {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--gradient-hero);
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

.hero-carousel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.18), transparent 55%);
  pointer-events: none;
}

.slide {
  position: relative;
  display: none;
  animation: slideFade var(--transition-slow) both;
}

.slide:first-child {
  display: block;
}

.slide svg {
  width: 100%;
  height: auto;
  opacity: 0.92;
  mix-blend-mode: multiply;
}

html[data-theme="dark"] .slide svg {
  mix-blend-mode: screen;
  opacity: 0.85;
}

.slide-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 32px 26px;
  background: linear-gradient(to top, rgba(30, 20, 12, 0.82) 0%, rgba(30, 20, 12, 0.35) 60%, transparent 100%);
  color: #FBF6EE;
}

.slide-caption h2 {
  color: #FFFFFF;
  margin-bottom: 0.35em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.slide-caption p {
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  max-width: 640px;
}

@keyframes slideFade {
  from { opacity: 0; transform: scale(1.02); }
  to { opacity: 1; transform: scale(1); }
}

.carousel-controls {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 3;
}

.carousel-controls button {
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.16);
  color: #FFFFFF;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.carousel-controls button:hover {
  background: rgba(255, 255, 255, 0.32);
  transform: translateY(-2px);
}

.hero-intro {
  margin-top: 28px;
  padding: 8px 0;
}

.hero-intro h1 {
  background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5em;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.stat {
  padding: 20px 18px;
  border-radius: var(--radius-md);
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.stat:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-accent);
}

.stat .num {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.stat .unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-left: 2px;
}

.stat p {
  margin: 4px 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ============ Breadcrumb & Anchor Nav ============ */
#breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8px 24px;
}

#breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

#breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-text-muted);
  opacity: 0.6;
}

#anchor-nav {
  position: sticky;
  top: var(--header-height);
  z-index: 900;
  margin: 12px auto 0;
  max-width: var(--max-width);
  padding: 0 24px;
}

#anchor-nav ul {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  list-style: none;
  margin: 0;
  padding: 10px 12px;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  scrollbar-width: thin;
}

#anchor-nav li {
  margin: 0;
  flex: 0 0 auto;
}

#anchor-nav a {
  display: block;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  color: var(--color-text-soft);
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast);
}

#anchor-nav a:hover {
  background: rgba(201, 162, 39, 0.16);
  color: var(--color-primary);
}

/* ============ Sections ============ */
main > section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px;
}

main > section + section {
  padding-top: 24px;
}

main > section > h2 {
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 28px;
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

main > section > h3 {
  margin-top: 1.6em;
  color: var(--color-primary);
}

/* ============ Cards (Products / Solutions / Applications / Cases) ============ */
#products,
#solutions,
#applications,
#cases,
#reviews,
#news,
#articles,
#knowledge,
#faq,
#howto,
#contact,
#sitemap,
#links,
#about {
  scroll-margin-top: calc(var(--header-height) + 64px);
}

#products ul,
#advantages ul,
#solutions ul,
#applications ul,
#reviews ul,
#news ul,
#sitemap ul,
#links ul {
  list-style: none;
  padding-left: 0;
}

#products > ul,
#advantages,
#reviews {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

#products > ul > li,
#advantages > li {
  position: relative;
  padding: 22px 22px 22px 26px;
  border-radius: var(--radius-md);
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#products > ul > li::before,
#advantages > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

#products > ul > li:hover,
#advantages > li:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: var(--color-accent);
}

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

#reviews blockquote:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* ============ News ============ */
#news ul {
  display: grid;
  gap: 10px;
}

#news li {
  position: relative;
  padding: 16px 18px 16px 46px;
  border-radius: var(--radius-md);
  background: var(--color-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#news li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.15);
}

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

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

/* ============ Articles ============ */
#articles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

#articles > h2,
#articles > p {
  grid-column: 1 / -1;
}

#articles article {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#articles article:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

#articles article h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5em;
}

#articles article p {
  font-size: 0.92rem;
  flex: 1;
}

#articles article a {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
  color: #3A2A1E;
  font-weight: 700;
  font-size: 0.85rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

#articles article a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: #3A2A1E;
}

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

/* ============ Knowledge ============ */
#knowledge {
  position: relative;
}

#knowledge p {
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: var(--color-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

#faq details:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

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

#faq summary {
  position: relative;
  padding: 18px 52px 18px 22px;
  cursor: pointer;
  font-weight: 700;
  color: var(--color-text);
  list-style: none;
  transition: color var(--transition-fast), background var(--transition-fast);
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.16);
  color: var(--color-primary);
  font-size: 1.15rem;
  font-weight: 700;
  transition: transform var(--transition-base), background var(--transition-base);
}

#faq details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
  background: var(--gradient-accent);
  color: #3A2A1E;
}

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

#faq details p {
  padding: 0 22px 20px;
  margin: 0;
  animation: fadeIn var(--transition-slow) both;
}

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

/* ============ HowTo ============ */
#howto ol {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

#howto ol > li {
  position: relative;
  padding: 16px 18px 16px 58px;
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  background: var(--color-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#howto ol > li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #3A2A1E;
  font-weight: 800;
  font-size: 0.9rem;
}

#howto ol > li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

#howto ul {
  list-style: none;
  padding-left: 0;
}

#howto > ul > li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 8px;
}

#howto > ul > li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ============ Contact ============ */
#contact > ul {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

#contact > ul > li {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--gradient-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  color: var(--color-text-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#contact > ul > li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

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

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

#sitemap a,
#links a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-soft);
  transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

#sitemap a:hover,
#links a:hover {
  transform: translateY(-3px);
  background: rgba(201, 162, 39, 0.16);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

/* ============ Footer ============ */
#site-footer {
  margin-top: 48px;
  background: var(--gradient-hero);
  color: #FBF6EE;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.12), transparent 45%),
              radial-gradient(circle at 85% 80%, rgba(201, 162, 39, 0.18), transparent 50%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.footer-inner h2 {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: 0.8em;
  position: relative;
  padding-bottom: 10px;
}

.footer-inner h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

.footer-inner p {
  color: rgba(251, 246, 238, 0.82);
  font-size: 0.9rem;
  margin-bottom: 0.6em;
}

.footer-inner a {
  color: #F0DC94;
}

.footer-inner a:hover {
  color: #FFFFFF;
}

.copyright {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px 28px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(251, 246, 238, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

/* ============ Back to top ============ */
#back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 950;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  border-radius: var(--radius-pill);
  padding: 12px 20px;
  background: var(--gradient-accent);
  color: #3A2A1E;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), box-shadow var(--transition-fast);
}

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

#back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  #main-nav a {
    padding: 8px 9px;
    font-size: 0.85rem;
  }
  #search-input {
    width: 120px;
  }
}

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

  .header-inner {
    flex-wrap: wrap;
    padding: 10px 16px;
    gap: 12px;
  }

  #main-nav {
    order: 3;
    flex-basis: 100%;
    display: none;
    justify-content: flex-start;
  }

  #main-nav.is-open {
    display: flex;
    animation: fadeIn var(--transition-base) both;
  }

  #main-nav ul {
    flex-direction: column;
    width: 100%;
    gap: 2px;
    padding: 8px 0;
  }

  #main-nav a {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
  }

  #menu-toggle {
    display: inline-block;
  }

  .header-tools {
    margin-left: auto;
  }

  #site-search {
    display: none;
  }

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

  #anchor-nav {
    top: var(--header-height);
    padding: 0 16px;
  }

  main > section {
    padding: 40px 16px;
  }

  main > section + section {
    padding-top: 16px;
  }

  .slide-caption {
    padding: 20px 20px 18px;
  }

  .slide-caption h2 {
    font-size: 1.15rem;
  }

  .slide-caption p {
    font-size: 0.88rem;
  }

  .carousel-controls {
    top: 10px;
    right: 10px;
  }

  .carousel-controls button {
    padding: 6px 10px;
    font-size: 0.72rem;
  }

  #articles {
    grid-template-columns: 1fr;
  }

  #back-to-top {
    right: 16px;
    bottom: 16px;
    padding: 10px 16px;
  }
}

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

  .brand-name {
    font-size: 1rem;
  }

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

  .stat {
    padding: 16px 12px;
  }

  #hero {
    padding: 20px 16px 8px;
  }

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

  .slide svg {
    min-height: 180px;
    object-fit: cover;
  }

  .footer-inner {
    padding: 36px 16px 16px;
    gap: 24px;
  }

  #faq summary {
    padding: 16px 48px 16px 18px;
    font-size: 0.95rem;
  }

  #howto ol > li {
    padding: 14px 14px 14px 52px;
  }

  #contact > ul {
    grid-template-columns: 1fr;
  }
}

/* ============ Print ============ */
@media print {
  #site-header,
  #anchor-nav,
  #back-to-top,
  .carousel-controls,
  .header-tools {
    display: none !important;
  }

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

  main > section {
    padding: 12px 0;
    page-break-inside: avoid;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }
}
</style>