:root {
  --brand: #c8102e;
  --brand-dark: #8c1b2f;
  --brand-light: #e05a6e;
  --brand-soft: #f7f2f3;
  --brand-glow: rgba(200, 16, 46, 0.18);
  --accent-gold: #e8b84b;
  --text: #222222;
  --text-soft: #555555;
  --text-muted: #8a8a8a;
  --bg: #ffffff;
  --bg-alt: #faf7f8;
  --bg-card: rgba(255, 255, 255, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --border: #e6e0e1;
  --border-soft: rgba(200, 16, 46, 0.12);
  --shadow-sm: 0 2px 8px rgba(140, 27, 47, 0.06);
  --shadow-md: 0 8px 24px rgba(140, 27, 47, 0.10);
  --shadow-lg: 0 16px 48px rgba(140, 27, 47, 0.16);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --radius-pill: 50px;
  --gradient-brand: linear-gradient(135deg, #c8102e 0%, #e05a6e 48%, #e8b84b 100%);
  --gradient-brand-dark: linear-gradient(135deg, #8c1b2f 0%, #c8102e 55%, #e05a6e 100%);
  --gradient-hero: linear-gradient(135deg, #fdf1f3 0%, #f7f2f3 40%, #fbf6ec 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.42) 100%);
  --blur: 16px;
  --transition: 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

html.dark-mode {
  --brand: #ff5a70;
  --brand-dark: #c8102e;
  --brand-light: #ff8a99;
  --brand-soft: #1f1416;
  --brand-glow: rgba(255, 90, 112, 0.22);
  --accent-gold: #f0c96a;
  --text: #f2f2f2;
  --text-soft: #c9c9c9;
  --text-muted: #8f8f8f;
  --bg: #121212;
  --bg-alt: #191416;
  --bg-card: rgba(30, 22, 24, 0.72);
  --bg-glass: rgba(30, 22, 24, 0.55);
  --border: #333333;
  --border-soft: rgba(255, 90, 112, 0.18);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
  --gradient-hero: linear-gradient(135deg, #1f1416 0%, #191416 45%, #221a12 100%);
  --gradient-glass: linear-gradient(135deg, rgba(40, 30, 32, 0.78) 0%, rgba(30, 22, 24, 0.42) 100%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%, var(--brand-glow) 0%, transparent 42%),
    radial-gradient(circle at 88% 92%, rgba(232, 184, 75, 0.10) 0%, transparent 40%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

h1,
h2,
h3,
h4 {
  line-height: 1.4;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.6rem, 1.2rem + 2vw, 2.4rem);
  margin: 0 0 1.2rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--brand);
}

html.dark-mode h1 {
  background: linear-gradient(135deg, #ff8a99 0%, #ff5a70 50%, #f0c96a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: clamp(1.3rem, 1.1rem + 1vw, 1.75rem);
  margin: 0 0 1.2rem;
  padding-left: 0.85rem;
  position: relative;
  border-left: none;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 3px;
  background: var(--gradient-brand);
  box-shadow: 0 0 12px var(--brand-glow);
}

h3 {
  font-size: clamp(1.08rem, 1rem + 0.4vw, 1.28rem);
  margin: 1.8rem 0 0.7rem;
  color: var(--text);
}

h4 {
  font-size: 1.05rem;
  margin: 1.3rem 0 0.5rem;
  color: var(--text-soft);
}

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

h1 + p,
h2 + p,
h3 + p {
  color: var(--text-soft);
}

ul,
ol {
  margin: 0 0 1.2rem;
  padding-left: 1.4rem;
}

li {
  margin: 0.4rem 0;
  color: var(--text-soft);
}

li strong {
  color: var(--text);
}

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

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

.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;
}

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

#site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0.85;
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1.4rem;
  flex-wrap: wrap;
}

.brand a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand a:hover {
  text-decoration: none;
}

.brand svg {
  border-radius: 12px;
  box-shadow: 0 4px 14px var(--brand-glow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.brand a:hover svg {
  transform: rotate(-6deg) scale(1.06);
  box-shadow: 0 8px 22px var(--brand-glow);
}

.brand-name {
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

#main-nav ul {
  display: flex;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

#main-nav a {
  display: inline-block;
  padding: 0.4rem 0.75rem;
  font-size: 0.92rem;
  color: var(--text-soft);
  border-radius: var(--radius-pill);
  text-decoration: none;
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

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

#main-nav a:hover,
#main-nav a:focus-visible {
  color: var(--brand);
  background: var(--brand-soft);
  text-decoration: none;
  transform: translateY(-1px);
}

#main-nav a:hover::after {
  width: 60%;
}

.header-tools {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-left: auto;
  flex-wrap: wrap;
}

#site-search {
  display: flex;
  gap: 0.3rem;
  align-items: center;
}

#site-search input {
  padding: 0.42rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.88rem;
  font-family: inherit;
  min-width: 150px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

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

#site-search input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-glow);
  background: var(--bg);
}

#site-search button,
.header-tools button {
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--brand);
  background: transparent;
  color: var(--brand);
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

#site-search button:hover,
.header-tools button:hover {
  background: var(--brand);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--brand-glow);
}

#site-search button:active,
.header-tools button:active {
  transform: translateY(0) scale(0.97);
}

#menu-toggle {
  display: none;
}

.breadcrumb {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0.9rem 1.4rem 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb li {
  margin: 0;
  color: var(--text-muted);
}

.breadcrumb li a {
  color: var(--text-soft);
  text-decoration: none;
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.breadcrumb li a:hover {
  color: var(--brand);
  background: var(--brand-soft);
  text-decoration: none;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--border);
}

main {
  display: block;
}

section {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2.4rem 1.4rem;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}

section.revealed {
  opacity: 1;
  transform: none;
}

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

#hero {
  display: flex;
  gap: 2.4rem;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
  margin-top: 1rem;
  padding: 2.8rem 1.8rem;
  border-radius: var(--radius-lg);
  background: var(--gradient-hero);
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

#hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--brand-glow) 0%, transparent 70%);
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  bottom: -50%;
  left: -8%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 184, 75, 0.14) 0%, transparent 70%);
  pointer-events: none;
}

.hero-text {
  flex: 1 1 440px;
  position: relative;
  z-index: 1;
}

.hero-visual {
  flex: 1 1 340px;
  position: relative;
  z-index: 1;
}

.hero-visual svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.6s ease;
}

.hero-visual:hover svg {
  transform: translateY(-6px) scale(1.015);
  box-shadow: 0 24px 60px var(--brand-glow);
}

.hero-lead {
  color: var(--text-soft);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  border: none;
  box-shadow: 0 8px 20px var(--brand-glow);
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-primary:hover {
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px var(--brand-glow);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-secondary {
  border: 1.5px solid var(--brand);
  color: var(--brand);
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px var(--brand-glow);
}

.btn-primary:active,
.btn-secondary:active {
  transform: translateY(0) scale(0.98);
}

.carousel {
  max-width: 1140px;
  margin: 2rem auto 0;
  padding: 0 1.4rem 2rem;
  position: relative;
}

.carousel-track {
  position: relative;
  min-height: 150px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.carousel-slide {
  display: none;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
  backdrop-filter: blur(var(--blur)) saturate(160%);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.8rem 1.6rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  animation: slideFade 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.carousel-slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 6px;
  background: var(--gradient-brand);
  border-radius: 6px 0 0 6px;
}

.carousel-slide.active {
  display: block;
}

.carousel-slide h2 {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  border: none;
  padding-left: 0;
  margin-bottom: 0.6rem;
}

.carousel-slide h2::before {
  display: none;
}

.carousel-slide p {
  color: var(--text-soft);
  margin-bottom: 0;
}

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

.carousel-controls {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.9rem;
  justify-content: flex-end;
}

.carousel-controls button {
  padding: 0.42rem 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-soft);
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 600;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.carousel-controls button:hover {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--brand-glow);
}

.stats-list {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  padding: 0;
  flex-wrap: wrap;
  margin: 1.6rem 0 0;
}

.stats-list li {
  flex: 1 1 200px;
  background: var(--bg-card);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.4rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.stats-list li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition);
}

.stats-list li:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand);
}

.stats-list li:hover::before {
  opacity: 1;
}

.stat-num {
  display: block;
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.2rem);
  font-weight: 800;
  line-height: 1.2;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.3rem;
}

.stats-list li span {
  font-size: 0.88rem;
  color: var(--text-soft);
}

#anchor-nav {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

#anchor-nav h2 {
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

#anchor-nav ul {
  list-style: none;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

#anchor-nav li {
  margin: 0;
}

#anchor-nav a {
  display: inline-block;
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  color: var(--text-soft);
  background: var(--bg-card);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

#anchor-nav a:hover {
  background: var(--gradient-brand);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--brand-glow);
  text-decoration: none;
}

#about,
#history,
#products,
#solutions,
#cases,
#guide,
#faq,
#news,
#knowledge,
#contact,
#sitemap,
#links,
#legal {
  position: relative;
}

#about p,
#history p,
#products p,
#solutions p,
#guide p,
#knowledge p,
#contact p,
#legal p {
  color: var(--text-soft);
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand) 0%, var(--accent-gold) 100%);
  opacity: 0.5;
  border-radius: 2px;
}

.timeline li {
  position: relative;
  padding: 0.5rem 0 0.5rem 2.2rem;
  margin: 0;
  color: var(--text-soft);
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--brand);
  box-shadow: 0 0 0 4px var(--brand-glow);
  transition: transform var(--transition), background var(--transition);
}

.timeline li:hover::before {
  transform: scale(1.2);
  background: var(--brand);
}

dl {
  margin: 0 0 1.2rem;
  display: grid;
  gap: 0.6rem;
}

dt {
  font-weight: 700;
  color: var(--text);
  margin-top: 0.4rem;
  padding-left: 0.8rem;
  position: relative;
}

dt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

dd {
  margin: 0 0 0.4rem;
  padding-left: 0.8rem;
  color: var(--text-soft);
  border-left: 2px solid var(--border-soft);
}

#products ul,
#solutions ul,
#guide ul,
#knowledge ul,
#sitemap ul,
#links ul {
  list-style: none;
  padding: 0;
}

#products ul li,
#solutions ul li,
#guide ul li,
#knowledge ul li {
  position: relative;
  padding: 0.55rem 0.9rem 0.55rem 2.1rem;
  margin: 0.4rem 0;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#products ul li::before,
#solutions ul li::before,
#guide ul li::before,
#knowledge ul li::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 1.05rem;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gradient-brand);
  transform: rotate(45deg);
  transition: transform var(--transition);
}

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

#products ul li:hover::before,
#solutions ul li:hover::before,
#guide ul li:hover::before,
#knowledge ul li:hover::before {
  transform: rotate(135deg) scale(1.15);
}

blockquote {
  margin: 0 0 1rem;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--brand);
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  top: -0.2rem;
  right: 1rem;
  font-size: 3rem;
  line-height: 1;
  color: var(--brand);
  opacity: 0.15;
  font-family: Georgia, serif;
}

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

blockquote:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  margin-bottom: 0.8rem;
  background: var(--bg-card);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

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

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

summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--text);
  padding: 0.9rem 2.6rem 0.9rem 1.1rem;
  position: relative;
  list-style: none;
  transition: color var(--transition), background var(--transition);
}

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

summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--brand);
  line-height: 1;
  transition: transform var(--transition);
}

details[open] summary {
  color: var(--brand);
  background: var(--brand-soft);
}

details[open] summary::after {
  content: "\2212";
  transform: translateY(-50%) rotate(180deg);
}

details p {
  padding: 0 1.1rem 1rem;
  margin: 0.4rem 0 0;
  color: var(--text-soft);
  animation: fadeIn 0.4s ease;
}

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

#news article {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  margin-bottom: 1rem;
  background: var(--bg-card);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

#news article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-brand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

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

#news article:hover::before {
  transform: scaleY(1);
}

#news article h3 {
  margin-top: 0;
  font-size: 1.12rem;
}

#news article h3 a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

#news article h3 a:hover {
  color: var(--brand);
  text-decoration: none;
}

.meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  padding: 0.2rem 0.6rem;
  display: inline-block;
  background: var(--brand-soft);
  border-radius: var(--radius-pill);
}

#news article p {
  color: var(--text-soft);
}

#news article > p:last-child a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--brand);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

#news article > p:last-child a::after {
  content: "\2192";
  transition: transform var(--transition);
}

#news article > p:last-child a:hover {
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  transform: translateX(2px);
}

#news article > p:last-child a:hover::after {
  transform: translateX(3px);
}

#knowledge ul li a {
  font-weight: 600;
}

address {
  font-style: normal;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow-sm);
}

address dl {
  margin: 0;
  gap: 0.3rem;
}

address dt {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

address dt::before {
  display: none;
}

address dd {
  border-left: none;
  padding-left: 0;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 0.6rem;
}

address dd a {
  font-weight: 600;
}

#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
}

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

#sitemap ul li a,
#links ul li a {
  display: block;
  padding: 0.55rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-soft);
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

#sitemap ul li a:hover,
#links ul li a:hover {
  background: var(--brand-soft);
  color: var(--brand);
  border-color: var(--brand);
  transform: translateX(3px);
  text-decoration: none;
}

#legal {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding-top: 2.4rem;
}

#site-footer {
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--brand-soft) 100%);
  border-top: 1px solid var(--border);
  margin-top: 2.4rem;
  position: relative;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  padding: 2.4rem 1.4rem 1.4rem;
}

.footer-inner h2 {
  font-size: 1rem;
  border: none;
  padding-left: 0;
  margin-bottom: 0.8rem;
  color: var(--text);
}

.footer-inner h2::before {
  display: none;
}

.footer-brand strong {
  font-size: 1.2rem;
  display: block;
  margin-bottom: 0.4rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-brand p {
  color: var(--text-soft);
  font-size: 0.9rem;
  margin: 0;
}

.footer-inner ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-inner ul li {
  margin: 0.35rem 0;
}

.footer-inner ul li a {
  color: var(--text-soft);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition), padding-left var(--transition);
  display: inline-block;
}

.footer-inner ul li a:hover {
  color: var(--brand);
  padding-left: 4px;
  text-decoration: none;
}

.footer-contact address {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.footer-contact address p {
  margin: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.footer-contact address a {
  color: var(--text-soft);
}

.footer-contact address a:hover {
  color: var(--brand);
}

.copyright {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 1rem 1.4rem 1.6rem;
  margin: 0;
  border-top: 1px solid var(--border);
  max-width: 1140px;
  margin-left: auto;
  margin-right: auto;
}

#back-to-top {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  padding: 0.6rem 1.05rem;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--gradient-brand);
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  box-shadow: 0 8px 24px var(--brand-glow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  z-index: 900;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

#back-to-top:hover {
  box-shadow: 0 12px 32px var(--brand-glow);
  transform: translateY(-2px);
}

#back-to-top:active {
  transform: translateY(0) scale(0.96);
}

@media (max-width: 900px) {
  .header-inner {
    padding: 0.6rem 1rem;
  }
  #main-nav ul {
    gap: 0.2rem;
  }
  #main-nav a {
    padding: 0.35rem 0.55rem;
    font-size: 0.86rem;
  }
  #site-search input {
    min-width: 120px;
  }
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 120px;
  }
  #menu-toggle {
    display: inline-block;
  }
  #main-nav {
    display: none;
    width: 100%;
    order: 5;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
    margin-top: 0.4rem;
    animation: fadeIn 0.3s ease;
  }
  #main-nav.nav-open {
    display: block;
  }
  #main-nav ul {
    flex-direction: column;
    gap: 0.15rem;
    width: 100%;
  }
  #main-nav li {
    width: 100%;
    margin: 0;
  }
  #main-nav a {
    display: block;
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-sm);
  }
  #main-nav a::after {
    display: none;
  }
  .header-tools {
    width: 100%;
    margin-left: 0;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
    margin-top: 0.4rem;
  }
  #site-search {
    flex: 1 1 100%;
  }
  #site-search input {
    flex: 1;
    min-width: 0;
  }
  #hero {
    padding: 1.8rem 1.2rem;
    gap: 1.6rem;
    margin-top: 0.6rem;
  }
  .hero-text,
  .hero-visual {
    flex: 1 1 100%;
  }
  .hero-actions {
    width: 100%;
  }
  .btn-primary,
  .btn-secondary {
    flex: 1 1 auto;
    text-align: center;
  }
  section {
    padding: 1.8rem 1rem;
  }
  .carousel {
    padding: 0 1rem 1.6rem;
  }
  .carousel-slide {
    padding: 1.3rem 1.2rem;
  }
  .carousel-controls {
    justify-content: center;
  }
  .stats-list {
    gap: 0.8rem;
  }
  .stats-list li {
    flex: 1 1 calc(50% - 0.4rem);
    padding: 1.1rem 0.8rem;
  }
  #anchor-nav ul {
    gap: 0.45rem;
  }
  #anchor-nav a {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.4rem;
    padding: 1.8rem 1rem 1rem;
  }
  #sitemap ul,
  #links ul {
    grid-template-columns: 1fr;
  }
  #back-to-top {
    right: 1rem;
    bottom: 1rem;
    padding: 0.55rem 0.9rem;
  }
  blockquote {
    padding: 0.85rem 1rem;
  }
  address {
    padding: 1rem 1.1rem;
  }
}

@media (max-width: 420px) {
  body {
    font-size: 15px;
  }
  .stats-list li {
    flex: 1 1 100%;
  }
  .brand-name {
    font-size: 1.02rem;
  }
  .header-tools button,
  #site-search button {
    font-size: 0.8rem;
    padding: 0.4rem 0.7rem;
  }
}

@media (hover: none) {
  .stats-list li:hover,
  #news article:hover,
  #products ul li:hover,
  #solutions ul li:hover,
  #guide ul li:hover,
  #knowledge ul li:hover,
  .hero-visual:hover svg {
    transform: none;
  }
}

@media print {
  #site-header,
  #back-to-top,
  .carousel-controls,
  .hero-actions,
  #anchor-nav,
  #site-footer {
    display: none !important;
  }
  section {
    opacity: 1 !important;
    transform: none !important;
    page-break-inside: avoid;
  }
  body {
    background: #fff;
    color: #000;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
}