:root {
  --brand: #2f6f6a;
  --brand-light: #4a9d94;
  --brand-dark: #1e4f4b;
  --accent: #f4c95d;
  --accent-warm: #e8a849;
  --bg: #f7faf9;
  --bg-alt: #eef5f3;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --surface-glass-strong: rgba(255, 255, 255, 0.88);
  --text: #1a2e2c;
  --text-soft: #4a6360;
  --text-muted: #7a9490;
  --border: rgba(47, 111, 106, 0.14);
  --shadow-sm: 0 2px 8px rgba(30, 79, 75, 0.06);
  --shadow-md: 0 8px 28px rgba(30, 79, 75, 0.1);
  --shadow-lg: 0 18px 48px rgba(30, 79, 75, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --nav-height: 72px;
  --transition: 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  --gradient-hero: linear-gradient(135deg, #2f6f6a 0%, #3d8a82 38%, #5aa89e 68%, #f4c95d 130%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(238, 245, 243, 0.7));
  --gradient-accent: linear-gradient(120deg, #f4c95d, #e8a849);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

html[data-theme="dark"] {
  --brand: #4a9d94;
  --brand-light: #6ec0b6;
  --brand-dark: #2f6f6a;
  --accent: #f4c95d;
  --accent-warm: #e8a849;
  --bg: #0e1a1a;
  --bg-alt: #122222;
  --surface: #162b2a;
  --surface-glass: rgba(22, 43, 42, 0.72);
  --surface-glass-strong: rgba(22, 43, 42, 0.9);
  --text: #e6f2f0;
  --text-soft: #a9c4c0;
  --text-muted: #7a9490;
  --border: rgba(110, 192, 182, 0.16);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #0e1a1a 0%, #1a3a37 38%, #2f6f6a 72%, #e8a849 140%);
  --gradient-card: linear-gradient(145deg, rgba(22, 43, 42, 0.92), rgba(14, 26, 26, 0.7));
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

h1 {
  font-size: clamp(1.6rem, 4.2vw, 2.6rem);
}

h2 {
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  margin-bottom: 1.2rem;
  position: relative;
  padding-left: 18px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 6px;
  border-radius: 6px;
  background: var(--gradient-accent);
}

h3 {
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  margin: 1.6rem 0 0.7rem;
  color: var(--brand-dark);
}

html[data-theme="dark"] h3 {
  color: var(--brand-light);
}

h4 {
  font-size: 1.05rem;
  margin: 1.2rem 0 0.5rem;
  color: var(--text-soft);
}

p {
  margin-bottom: 1rem;
  color: var(--text-soft);
}

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

blockquote {
  margin: 1rem 0;
  padding: 1rem 1.4rem;
  border-left: 4px solid var(--accent);
  background: var(--surface-glass);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-style: italic;
  color: var(--text-soft);
}

blockquote p {
  margin: 0;
}

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

.top-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1rem;
  padding: 0.5rem clamp(1rem, 4vw, 3rem);
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--gradient-hero);
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.02em;
}

.top-bar span {
  display: inline-flex;
  align-items: center;
}

#site-header nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.2rem;
  padding: 0.7rem clamp(1rem, 4vw, 3rem);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--brand-dark);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

html[data-theme="dark"] .logo {
  color: var(--text);
}

.logo svg {
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.06);
}

#site-header nav > ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.4rem;
  flex: 1 1 auto;
  justify-content: center;
}

#site-header nav > ul li a {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 999px;
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

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

#site-header nav > ul li a:hover {
  color: var(--brand);
  background: rgba(47, 111, 106, 0.08);
  transform: translateY(-2px);
}

#site-header nav > ul li a:hover::after {
  width: 60%;
}

#site-header nav form[role="search"] {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
  position: relative;
}

#site-header nav form[role="search"] label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

#site-header nav form[role="search"] input[type="search"] {
  width: clamp(150px, 22vw, 240px);
  padding: 0.55rem 1rem;
  font-size: 0.88rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

#site-header nav form[role="search"] input[type="search"]::placeholder {
  color: var(--text-muted);
}

#site-header nav form[role="search"] input[type="search"]:focus {
  border-color: var(--brand-light);
  box-shadow: 0 0 0 4px rgba(74, 157, 148, 0.18);
  background: var(--surface);
}

#site-header nav form[role="search"] button {
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  font-family: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-hero);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

#site-header nav form[role="search"] button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.08);
}

#site-header nav form[role="search"] button:active {
  transform: translateY(0);
}

/* ============ MAIN ============ */
main {
  display: block;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem) 4rem;
}

main > section {
  margin-top: 3.5rem;
  scroll-margin-top: calc(var(--nav-height) + 20px);
}

/* ============ HERO ============ */
#hero {
  position: relative;
  margin-top: 2.5rem;
  padding: clamp(1.6rem, 4vw, 3.2rem);
  border-radius: var(--radius-xl);
  background: var(--gradient-hero);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(244, 201, 93, 0.35), transparent 45%),
    radial-gradient(circle at 88% 82%, rgba(255, 255, 255, 0.18), transparent 50%);
  z-index: -1;
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 60%;
  height: 180%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.14), transparent);
  transform: rotate(18deg);
  animation: heroSheen 9s ease-in-out infinite;
  z-index: -1;
  pointer-events: none;
}

@keyframes heroSheen {
  0%, 100% { transform: translateX(-30%) rotate(18deg); opacity: 0.4; }
  50% { transform: translateX(30%) rotate(18deg); opacity: 0.9; }
}

#hero h1 {
  color: #fff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.22);
  margin-bottom: 1rem;
  max-width: 22ch;
}

#hero > p {
  color: rgba(255, 255, 255, 0.92);
  max-width: 70ch;
  font-size: clamp(0.92rem, 1.6vw, 1.02rem);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.18);
}

/* ============ CAROUSEL ============ */
#banner-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 1.8rem 0;
}

#banner-carousel article {
  padding: 1.3rem 1.4rem;
  border-radius: var(--radius-md);
  background: var(--surface-glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

#banner-carousel article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

#banner-carousel article:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  background: var(--surface-glass-strong);
}

#banner-carousel article:hover::before {
  transform: scaleX(1);
}

#banner-carousel article h3 {
  color: #fff;
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
}

#banner-carousel article p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.88rem;
  margin: 0;
}

/* ============ STATS ============ */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 1.8rem 0 1.4rem;
}

.stats p {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 1.1rem 0.8rem;
  border-radius: var(--radius-md);
  background: var(--surface-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.82rem;
  text-align: center;
  margin: 0;
  transition: transform var(--transition), background var(--transition);
}

.stats p:hover {
  transform: translateY(-4px) scale(1.02);
  background: var(--surface-glass-strong);
}

.stats p strong {
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.25);
  font-variant-numeric: tabular-nums;
}

/* ============ HERO BUTTONS ============ */
#back-to-top,
#theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin: 0.6rem 0.6rem 0 0;
  padding: 0.65rem 1.4rem;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), color var(--transition);
}

#back-to-top:hover,
#theme-toggle:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.22);
}

#back-to-top:active,
#theme-toggle:active {
  transform: translateY(0) scale(0.98);
}

/* ============ BREADCRUMB ============ */
main > nav[aria-label="面包屑导航"] {
  margin-top: 1.6rem;
}

main > nav[aria-label="面包屑导航"] ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

main > nav[aria-label="面包屑导航"] ol li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

main > nav[aria-label="面包屑导航"] ol li:not(:last-child)::after {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

main > nav[aria-label="面包屑导航"] ol li a {
  color: var(--brand);
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}

main > nav[aria-label="面包屑导航"] ol li a:hover {
  background: rgba(47, 111, 106, 0.1);
  color: var(--accent-warm);
}

/* ============ GENERIC SECTION CARDS ============ */
#brand,
#products,
#solutions,
#cases,
#news,
#articles,
#faq,
#howto,
#knowledge,
#contact,
#sitemap,
#links,
#legal {
  position: relative;
  padding: clamp(1.4rem, 3.6vw, 2.6rem);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
}

#brand:hover,
#products:hover,
#solutions:hover,
#cases:hover,
#news:hover,
#articles:hover,
#faq:hover,
#howto:hover,
#knowledge:hover,
#contact:hover,
#sitemap:hover,
#links:hover,
#legal:hover {
  box-shadow: var(--shadow-md);
}

#brand h3:first-of-type,
#products h3:first-of-type,
#solutions h3:first-of-type,
#cases h3:first-of-type,
#news h3:first-of-type,
#howto h3:first-of-type,
#knowledge h3:first-of-type,
#contact h3:first-of-type,
#legal h3:first-of-type {
  margin-top: 0.6rem;
}

/* ============ ARTICLES ============ */
#articles {
  display: grid;
  gap: 1.1rem;
}

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

#articles article {
  padding: 1.3rem 1.4rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

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

#articles article:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-light);
}

#articles article:hover::after {
  transform: scaleY(1);
}

#articles article h3 {
  margin-top: 0;
  font-size: 1.08rem;
}

#articles article p {
  font-size: 0.9rem;
  margin-bottom: 0.7rem;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: rgba(47, 111, 106, 0.08);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

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

#articles article a:hover {
  background: var(--gradient-accent);
  color: #1a2e2c;
  transform: translateX(3px);
}

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

/* ============ FAQ ============ */
#faq details {
  margin-bottom: 0.75rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

#faq details:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--brand-light);
}

#faq details[open] {
  border-color: var(--brand-light);
  box-shadow: var(--shadow-md);
}

#faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: background var(--transition), color var(--transition);
}

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

#faq summary::after {
  content: "+";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  background: var(--gradient-hero);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}

#faq details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--gradient-accent);
  color: #1a2e2c;
}

#faq summary:hover {
  background: rgba(47, 111, 106, 0.06);
  color: var(--brand);
}

#faq details p {
  padding: 0 1.2rem 1.1rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
  animation: fadeSlide 0.4s ease both;
}

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

/* ============ HOWTO ============ */
#howto h4 {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  background: rgba(47, 111, 106, 0.1);
  color: var(--brand);
  font-size: 0.92rem;
  margin: 1.3rem 0 0.5rem;
  transition: background var(--transition), transform var(--transition);
}

#howto h4:hover {
  background: rgba(244, 201, 93, 0.22);
  transform: translateX(4px);
}

#howto h4::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-accent);
  flex-shrink: 0;
}

/* ============ CONTACT ============ */
#contact p {
  font-size: 0.94rem;
  margin-bottom: 0.45rem;
}

#contact p:nth-of-type(1),
#contact p:nth-of-type(2),
#contact p:nth-of-type(3),
#contact p:nth-of-type(4) {
  padding-left: 1.6rem;
  position: relative;
}

#contact p:nth-of-type(1)::before,
#contact p:nth-of-type(2)::before,
#contact p:nth-of-type(3)::before,
#contact p:nth-of-type(4)::before {
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.95rem;
}

#contact p:nth-of-type(1)::before { content: "🏢"; }
#contact p:nth-of-type(2)::before { content: "📍"; }
#contact p:nth-of-type(3)::before { content: "📞"; }
#contact p:nth-of-type(4)::before { content: "✉️"; }

/* ============ SITEMAP & LINKS ============ */
#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.6rem;
}

#sitemap ul li a,
#links ul li a {
  display: block;
  padding: 0.6rem 0.9rem;
  font-size: 0.88rem;
  color: var(--text-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

#sitemap ul li a:hover,
#links ul li a:hover {
  color: var(--brand);
  border-color: var(--brand-light);
  background: var(--surface-glass-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

/* ============ FOOTER ============ */
footer {
  margin-top: 3rem;
  padding: 2.4rem clamp(1rem, 4vw, 3rem);
  text-align: center;
  background: var(--gradient-hero);
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(244, 201, 93, 0.22), transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.12), transparent 50%);
  pointer-events: none;
}

footer p {
  position: relative;
  margin-bottom: 0.5rem;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.88);
}

footer p:first-child {
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}

footer p:last-child {
  font-size: 0.78rem;
  opacity: 0.78;
  margin-bottom: 0;
}

/* ============ SCROLL REVEAL ============ */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  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);
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--brand), var(--brand-light));
  border-radius: 999px;
  border: 2px solid var(--bg-alt);
}

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

/* ============ SELECTION ============ */
::selection {
  background: var(--accent);
  color: #1a2e2c;
}

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

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  #site-header nav {
    gap: 0.5rem 0.8rem;
  }

  #site-header nav > ul {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.3rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  #site-header nav > ul::-webkit-scrollbar {
    display: none;
  }

  #site-header nav form[role="search"] {
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 12px;
  }

  #site-header {
    position: relative;
  }

  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    font-size: 0.74rem;
    padding: 0.45rem 1rem;
  }

  #site-header nav {
    padding: 0.65rem 1rem;
    gap: 0.5rem;
  }

  .logo {
    font-size: 1.08rem;
  }

  .logo svg {
    width: 30px;
    height: 30px;
  }

  #site-header nav > ul {
    gap: 0.15rem 0.25rem;
  }

  #site-header nav > ul li a {
    padding: 0.35rem 0.6rem;
    font-size: 0.82rem;
    white-space: nowrap;
  }

  #site-header nav form[role="search"] {
    flex-basis: 100%;
    order: 4;
    margin-left: 0;
  }

  #site-header nav form[role="search"] input[type="search"] {
    width: 100%;
    flex: 1 1 auto;
  }

  main {
    padding: 0 1rem 3rem;
  }

  main > section {
    margin-top: 2.4rem;
  }

  #hero {
    margin-top: 1.4rem;
    padding: 1.5rem 1.2rem;
    border-radius: var(--radius-lg);
  }

  #hero h1 {
    max-width: none;
  }

  #banner-carousel {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.7rem;
  }

  .stats p {
    padding: 0.9rem 0.5rem;
    font-size: 0.76rem;
  }

  h2 {
    padding-left: 14px;
  }

  h2::before {
    width: 5px;
  }

  #back-to-top,
  #theme-toggle {
    flex: 1 1 auto;
    margin: 0.5rem 0.4rem 0 0;
    padding: 0.6rem 1rem;
    font-size: 0.82rem;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  #sitemap ul li a,
  #links ul li a {
    padding: 0.5rem 0.7rem;
    font-size: 0.82rem;
  }

  blockquote {
    padding: 0.85rem 1rem;
  }

  footer {
    padding: 2rem 1rem;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

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

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

  #faq summary {
    padding: 0.85rem 1rem;
    font-size: 0.9rem;
  }

  #faq details p {
    padding: 0 1rem 0.95rem;
    font-size: 0.85rem;
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============ PRINT ============ */
@media print {
  #site-header,
  #back-to-top,
  #theme-toggle,
  footer {
    display: none;
  }

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

  main > section {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}