:root {
  --brand-primary: #6d28d9;
  --brand-primary-dark: #4c1d95;
  --brand-secondary: #be185d;
  --brand-accent: #f59e0b;
  --brand-gold: #fde68a;
  --brand-pink: #f9a8d4;
  --bg-body: #f7f5ff;
  --bg-surface: #ffffff;
  --bg-surface-translucent: rgba(255, 255, 255, 0.72);
  --bg-surface-glass: rgba(255, 255, 255, 0.55);
  --bg-elevated: #ffffff;
  --bg-muted: #f0ecfb;
  --text-primary: #1e1b2e;
  --text-secondary: #4b4661;
  --text-muted: #6b6580;
  --text-inverse: #ffffff;
  --border-subtle: rgba(109, 40, 217, 0.14);
  --border-medium: rgba(109, 40, 217, 0.28);
  --shadow-sm: 0 2px 8px rgba(76, 29, 149, 0.08);
  --shadow-md: 0 8px 24px rgba(76, 29, 149, 0.12);
  --shadow-lg: 0 18px 48px rgba(76, 29, 149, 0.16);
  --shadow-glow: 0 0 0 3px rgba(109, 40, 217, 0.22);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-pill: 999px;
  --gradient-hero: linear-gradient(135deg, #4c1d95 0%, #6d28d9 38%, #9333ea 62%, #be185d 100%);
  --gradient-soft: linear-gradient(135deg, #f5f3ff 0%, #fdf2f8 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(245, 240, 255, 0.78));
  --gradient-accent: linear-gradient(90deg, #6d28d9, #be185d);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --container-max: 1180px;
  --header-height: 72px;
  --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 420ms cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: light;
}

[data-theme="dark"] {
  --brand-primary: #a78bfa;
  --brand-primary-dark: #7c3aed;
  --brand-secondary: #f472b6;
  --brand-accent: #fbbf24;
  --brand-gold: #fde68a;
  --brand-pink: #f9a8d4;
  --bg-body: #0e0b1a;
  --bg-surface: #171227;
  --bg-surface-translucent: rgba(23, 18, 39, 0.78);
  --bg-surface-glass: rgba(30, 24, 52, 0.55);
  --bg-elevated: #1f1836;
  --bg-muted: #221b3b;
  --text-primary: #f3f0ff;
  --text-secondary: #c4bce0;
  --text-muted: #9a92b8;
  --text-inverse: #0e0b1a;
  --border-subtle: rgba(167, 139, 250, 0.18);
  --border-medium: rgba(167, 139, 250, 0.34);
  --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 18px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 0 3px rgba(167, 139, 250, 0.3);
  --gradient-hero: linear-gradient(135deg, #1a1033 0%, #2e1065 40%, #4c1d95 68%, #831843 100%);
  --gradient-soft: linear-gradient(135deg, #171227 0%, #1f1836 100%);
  --gradient-card: linear-gradient(145deg, rgba(31, 24, 54, 0.92), rgba(23, 18, 39, 0.78));
  --gradient-accent: linear-gradient(90deg, #a78bfa, #f472b6);
  color-scheme: dark;
}

*,
*::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-sans);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-body);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(109, 40, 217, 0.08), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(190, 24, 93, 0.07), transparent 46%),
    radial-gradient(circle at 50% 96%, rgba(245, 158, 11, 0.05), transparent 50%);
  background-attachment: fixed;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

[data-theme="dark"] body {
  background-image:
    radial-gradient(circle at 12% 8%, rgba(167, 139, 250, 0.1), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(244, 114, 182, 0.08), transparent 46%),
    radial-gradient(circle at 50% 96%, rgba(251, 191, 36, 0.05), transparent 50%);
}

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-secondary);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: none;
  box-shadow: var(--shadow-glow);
  border-radius: var(--radius-sm);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.6vw, 3rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2.05rem);
  font-weight: 700;
  position: relative;
  padding-bottom: var(--space-3);
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

h3 {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  font-weight: 700;
  margin-top: var(--space-5);
}

p {
  margin: 0 0 var(--space-4);
  color: var(--text-secondary);
}

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.4rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: var(--space-2);
}

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

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

blockquote {
  margin: var(--space-4) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 4px solid var(--brand-primary);
  background: var(--bg-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-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-secondary);
}

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

body > a:first-of-type {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 999;
  padding: var(--space-2) var(--space-4);
  background: var(--brand-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

body > a:first-of-type:focus {
  top: var(--space-4);
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-5);
  padding: var(--space-2) var(--space-4);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.88);
  background: linear-gradient(90deg, #3b0f7a, #6d28d9 50%, #9d174d);
  text-align: center;
}

.top-bar span {
  white-space: nowrap;
}

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

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1 1 auto;
  min-width: 0;
}

.brand > a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-primary);
}

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

.brand svg {
  flex-shrink: 0;
  filter: drop-shadow(0 4px 10px rgba(109, 40, 217, 0.35));
  transition: transform var(--transition-base);
}

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

.brand-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
}

.brand-slogan {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-left: var(--space-3);
  border-left: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.main-nav {
  flex: 1 1 100%;
  order: 3;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.main-nav li {
  margin: 0;
}

.main-nav a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.main-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);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--brand-primary);
  background: var(--bg-muted);
  transform: translateY(-1px);
}

.main-nav a:hover::after {
  width: 50%;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
}

.site-search {
  display: flex;
  align-items: center;
  background: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 3px 3px 3px var(--space-3);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-search:focus-within {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-glow);
}

.site-search input {
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  padding: var(--space-1) var(--space-2);
  width: 150px;
  min-width: 0;
}

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

.site-search input:focus {
  outline: none;
  box-shadow: none;
}

.site-search button {
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-inverse);
  background: var(--gradient-accent);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.site-search button:hover {
  opacity: 0.9;
  transform: scale(1.03);
}

.theme-toggle,
.menu-toggle {
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-3);
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}

.theme-toggle:hover,
.menu-toggle:hover {
  color: var(--brand-primary);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
}

.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4) 0;
  font-size: 0.82rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  color: var(--text-muted);
}

.breadcrumb li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

main {
  display: block;
}

.hero {
  position: relative;
  max-width: var(--container-max);
  margin: var(--space-5) auto var(--space-7);
  padding: 0 var(--space-4);
}

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

.hero-slider::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(253, 230, 138, 0.28), transparent 38%),
    radial-gradient(circle at 12% 88%, rgba(249, 168, 212, 0.24), transparent 42%);
  pointer-events: none;
  z-index: 0;
}

.hero-slider::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 30%, transparent 78%);
  pointer-events: none;
  z-index: 0;
}

.hero-slide {
  position: relative;
  z-index: 1;
  display: none;
  padding: clamp(1.75rem, 1rem + 4vw, 4rem);
  min-height: 340px;
  animation: heroFade var(--transition-slow) both;
}

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

.hero-slide svg {
  margin-bottom: var(--space-4);
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.28));
  animation: floatY 6s ease-in-out infinite;
}

.hero-slide h1,
.hero-slide h2 {
  color: #ffffff;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.28);
  padding-bottom: 0;
  margin-bottom: var(--space-4);
  max-width: 34ch;
}

.hero-slide h2::after {
  display: none;
}

.hero-slide p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 68ch;
  font-size: clamp(0.92rem, 0.88rem + 0.25vw, 1.02rem);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.hero-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-5);
  font-weight: 700;
  font-size: 0.92rem;
  color: #4c1d95;
  background: rgba(255, 255, 255, 0.94);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.hero-cta a + a {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-color: rgba(255, 255, 255, 0.4);
}

.hero-cta a:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.3);
  background: #ffffff;
  color: #4c1d95;
}

.hero-cta a + a:hover {
  background: rgba(255, 255, 255, 0.26);
  color: #ffffff;
}

.hero-controls {
  position: absolute;
  right: clamp(1rem, 3vw, 2.5rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 2;
  display: flex;
  gap: var(--space-2);
}

.hero-controls button {
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.hero-controls button:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.stats {
  max-width: var(--container-max);
  margin: 0 auto var(--space-7);
  padding: 0 var(--space-4);
}

.stats h2 {
  text-align: center;
  font-size: clamp(1.2rem, 1rem + 0.9vw, 1.6rem);
  margin-bottom: var(--space-5);
}

.stats h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.stats ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}

.stats li {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-5) var(--space-3);
  text-align: center;
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.stats li:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.stats strong {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 1.3rem + 1.8vw, 2.6rem);
  font-weight: 800;
  line-height: 1.1;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.stats span {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.section {
  max-width: var(--container-max);
  margin: 0 auto var(--space-7);
  padding: clamp(1.25rem, 1rem + 2vw, 2.5rem);
  border-radius: var(--radius-xl);
  background: var(--bg-surface-translucent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

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

.section > h2:first-child {
  margin-top: 0;
}

.section > p:first-of-type {
  font-size: 1.02rem;
  color: var(--text-secondary);
}

#brand-intro ul,
#products ul,
#services ul,
#scenarios ul,
#solutions ul,
#howto ul,
#howto ol,
#knowledge ul,
#contact ul,
#sitemap ul,
#links ul {
  padding-left: 0;
  list-style: none;
}

#brand-intro ul li,
#products ul li,
#services ul li,
#scenarios ul li,
#solutions ul li,
#knowledge ul li,
#contact ul li {
  position: relative;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-6);
  margin-bottom: var(--space-2);
  background: var(--bg-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

#brand-intro ul li::before,
#products ul li::before,
#services ul li::before,
#scenarios ul li::before,
#solutions ul li::before,
#knowledge ul li::before,
#contact ul li::before {
  content: "";
  position: absolute;
  left: var(--space-3);
  top: 1.35em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: 0 0 0 4px rgba(109, 40, 217, 0.12);
}

#brand-intro ul li:hover,
#products ul li:hover,
#services ul li:hover,
#scenarios ul li:hover,
#solutions ul li:hover,
#knowledge ul li:hover,
#contact ul li:hover {
  transform: translateX(4px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-sm);
}

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

#howto ol li {
  counter-increment: howto-step;
  position: relative;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-8);
  margin-bottom: var(--space-3);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

#howto ol li::before {
  content: counter(howto-step);
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #ffffff;
  background: var(--gradient-accent);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(109, 40, 217, 0.35);
}

#howto ol li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

#howto ul li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-2);
  color: var(--text-secondary);
}

#howto ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 800;
  color: var(--brand-primary);
}

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.news-list li {
  margin: 0;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.news-list li:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.news-list h3 {
  margin-top: 0;
  margin-bottom: var(--space-2);
}

.news-list h3 a {
  color: var(--text-primary);
}

.news-list h3 a:hover {
  color: var(--brand-primary);
}

.news-list p {
  margin-bottom: var(--space-1);
  font-size: 0.9rem;
}

.news-list p:first-of-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

#articles {
  display: grid;
  gap: var(--space-4);
}

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

#articles article {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

#articles article::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

#articles article:hover::before {
  opacity: 1;
}

#articles article h3 {
  margin-top: 0;
}

#articles article h3 a {
  color: var(--text-primary);
}

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

#articles article > p:nth-of-type(1) {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

#articles article > p:last-of-type a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--bg-muted);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

#articles article > p:last-of-type a::after {
  content: "→";
  transition: transform var(--transition-fast);
}

#articles article > p:last-of-type a:hover {
  background: var(--brand-primary);
  color: var(--text-inverse);
  transform: translateX(2px);
}

#articles article > p:last-of-type a:hover::after {
  transform: translateX(3px);
}

.faq-item {
  border-radius: var(--radius-md);
  background: var(--bg-surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq-item:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  margin: 0;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  background: transparent;
  border: none;
  padding: var(--space-4) var(--space-5);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.faq-question::after {
  content: "+";
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--brand-primary);
  background: var(--bg-muted);
  border-radius: 50%;
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
}

.faq-question:hover {
  color: var(--brand-primary);
  background: var(--bg-muted);
}

.faq-question[aria-expanded="true"] {
  color: var(--brand-primary);
}

.faq-question[aria-expanded="true"]::after {
  content: "−";
  transform: rotate(180deg);
  color: var(--text-inverse);
  background: var(--brand-primary);
}

.faq-answer {
  display: none;
  padding: 0 var(--space-5) var(--space-4);
  animation: faqOpen var(--transition-base) both;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.faq-answer p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

#team p,
#contact p,
#knowledge p {
  max-width: 78ch;
}

#sitemap ul,
#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

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

#sitemap a,
#links a {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

#sitemap a:hover,
#links a:hover {
  color: var(--text-inverse);
  background: var(--gradient-accent);
  border-color: transparent;
  transform: translateY(-2px);
}

.site-footer {
  margin-top: var(--space-8);
  background: var(--gradient-hero);
  color: rgba(255, 255, 255, 0.86);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(253, 230, 138, 0.16), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(249, 168, 212, 0.16), transparent 42%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-7) var(--space-4) var(--space-5);
  display: grid;
  gap: var(--space-6);
}

.footer-brand p {
  margin: 0 0 var(--space-2);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
}

.footer-brand strong {
  color: #ffffff;
  font-size: 1.05rem;
}

.footer-brand a {
  color: var(--brand-gold);
  font-weight: 600;
}

.footer-brand a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-legal h2 {
  font-size: 1rem;
  color: #ffffff;
  margin-top: var(--space-4);
  padding-bottom: var(--space-2);
}

.footer-legal h2::after {
  width: 32px;
  height: 3px;
  background: var(--brand-gold);
}

.footer-legal p {
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.86rem;
  margin-bottom: var(--space-2);
}

.footer-copy {
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.footer-copy p {
  margin: 0 0 var(--space-1);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
}

#back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 90;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-inverse);
  background: var(--gradient-accent);
  border: none;
  border-radius: var(--radius-pill);
  padding: var(--space-3) var(--space-4);
  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-base);
}

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

#back-to-top:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  will-change: opacity, transform;
}

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

@keyframes heroFade {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatY {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

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

@media (min-width: 900px) {
  .header-inner {
    flex-wrap: nowrap;
  }

  .main-nav {
    flex: 1 1 auto;
    order: 0;
    display: flex;
    justify-content: center;
  }

  .brand {
    flex: 0 0 auto;
  }

  #articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1.1fr 1.4fr;
    align-items: start;
  }

  .footer-copy {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1200px) {
  #articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-slide {
    display: none;
    min-height: 420px;
  }
}

@media (max-width: 899px) {
  .main-nav {
    display: none;
    flex: 1 1 100%;
    order: 3;
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-subtle);
  }

  .main-nav.is-open {
    display: block;
    animation: faqOpen var(--transition-base) both;
  }

  .main-nav ul {
    flex-direction: column;
    gap: var(--space-1);
  }

  .main-nav a {
    display: block;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
  }

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

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

  .brand-slogan {
    display: none;
  }

  .header-tools {
    flex: 0 0 auto;
  }

  .site-search input {
    width: 110px;
  }

  .hero-slide {
    min-height: 0;
  }

  .hero-controls {
    position: static;
    padding: 0 clamp(1.75rem, 1rem + 4vw, 4rem) clamp(1.75rem, 1rem + 4vw, 4rem);
    justify-content: flex-start;
  }

  .hero-slide.is-active + .hero-controls,
  .hero-slider .hero-controls {
    position: relative;
  }
}

@media (max-width: 640px) {
  .top-bar {
    font-size: 0.72rem;
    gap: var(--space-1) var(--space-3);
    padding: var(--space-2) var(--space-3);
  }

  .header-inner {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .brand svg {
    width: 36px;
    height: 36px;
  }

  .site-search {
    padding-left: var(--space-2);
  }

  .site-search input {
    width: 84px;
    font-size: 0.8rem;
  }

  .site-search button {
    padding: var(--space-1) var(--space-2);
    font-size: 0.78rem;
  }

  .theme-toggle,
  .menu-toggle {
    padding: var(--space-1) var(--space-2);
    font-size: 0.76rem;
  }

  .hero {
    margin-top: var(--space-3);
    padding: 0 var(--space-3);
  }

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

  .hero-cta a {
    flex: 1 1 auto;
    text-align: center;
  }

  .section {
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-5);
  }

  .stats ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats li {
    padding: var(--space-4) var(--space-2);
  }

  .faq-question {
    padding: var(--space-3) var(--space-4);
    font-size: 0.92rem;
  }

  .faq-answer {
    padding: 0 var(--space-4) var(--space-3);
  }

  #articles article,
  .news-list li {
    padding: var(--space-4);
  }

  #back-to-top {
    font-size: 0.76rem;
    padding: var(--space-2) var(--space-3);
  }
}

@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;
    scroll-behavior: auto !important;
  }

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

@media print {
  .top-bar,
  .site-header,
  .hero-controls,
  #back-to-top,
  .site-search,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }

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

  .section,
  .hero-slider,
  .stats li,
  .news-list li,
  #articles article {
    box-shadow: none;
    background: #ffffff;
    border: 1px solid #cccccc;
  }
}