:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --bg-card: rgba(30, 30, 52, 0.72);
  --bg-card-hover: rgba(42, 42, 72, 0.85);
  --bg-glass: rgba(26, 26, 46, 0.55);
  --bg-glass-border: rgba(233, 69, 96, 0.18);
  --text-primary: #f0f0f5;
  --text-secondary: #b8b8cc;
  --text-muted: #8080a0;
  --accent: #e94560;
  --accent-light: #ff6b81;
  --accent-secondary: #f2a154;
  --accent-purple: #533483;
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #533483 75%, #e94560 100%);
  --gradient-accent: linear-gradient(135deg, #e94560 0%, #f2a154 100%);
  --gradient-card: linear-gradient(145deg, rgba(233, 69, 96, 0.08) 0%, rgba(83, 52, 131, 0.08) 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(233, 69, 96, 0.25);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --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(0.16, 1, 0.3, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --max-width: 1200px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f4f4f9;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ededf5;
    --bg-card: rgba(255, 255, 255, 0.78);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.6);
    --bg-glass-border: rgba(233, 69, 96, 0.16);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #7a7a9a;
    --gradient-hero: linear-gradient(135deg, #f4f4f9 0%, #e8e0f5 40%, #d8c8f0 75%, #f8c8d0 100%);
    --gradient-card: linear-gradient(145deg, rgba(233, 69, 96, 0.05) 0%, rgba(83, 52, 131, 0.05) 100%);
    --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.08);
    --shadow-md: 0 8px 24px rgba(26, 26, 46, 0.1);
    --shadow-lg: 0 16px 48px rgba(26, 26, 46, 0.14);
    --shadow-glow: 0 0 24px rgba(233, 69, 96, 0.15);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(233, 69, 96, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 10%, rgba(83, 52, 131, 0.18) 0%, transparent 55%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

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

ul,
ol {
  list-style: none;
}

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

header > div {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

header > div > a {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
  position: relative;
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

header > div > a::after {
  content: "";
  position: absolute;
  inset: -4px -8px;
  border-radius: var(--radius-sm);
  background: var(--gradient-accent);
  opacity: 0;
  z-index: -1;
  filter: blur(12px);
  transition: opacity var(--transition-base);
}

header > div > a:hover {
  transform: scale(1.04);
}

header > div > a:hover::after {
  opacity: 0.35;
}

header nav {
  flex: 1 1 auto;
}

header nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  align-items: center;
}

header nav a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast);
}

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

header nav a:hover {
  color: var(--text-primary);
  background: rgba(233, 69, 96, 0.08);
}

header nav a:hover::before {
  width: 60%;
}

header form[role="search"] {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 1 340px;
  position: relative;
}

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

header form[role="search"] input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

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

header form[role="search"] input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.18);
  background: var(--bg-card-hover);
}

header form[role="search"] button {
  padding: 0.55rem 1.1rem;
  font-size: 0.875rem;
  font-family: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-accent);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

header form[role="search"] button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
  filter: brightness(1.08);
}

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

/* ========== MAIN LAYOUT ========== */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
}

main > nav[aria-label="面包屑导航"] {
  margin-bottom: 1.5rem;
}

main > nav[aria-label="面包屑导航"] ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

main > nav[aria-label="面包屑导航"] li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

main > nav[aria-label="面包屑导航"] li:not(:last-child)::after {
  content: "›";
  color: var(--text-muted);
  font-size: 1rem;
}

main > nav[aria-label="面包屑导航"] a {
  color: var(--text-secondary);
}

main > nav[aria-label="面包屑导航"] a:hover {
  color: var(--accent);
}

main > nav[aria-label="面包屑导航"] li[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
}

/* ========== SECTIONS ========== */
section {
  margin-bottom: 3.5rem;
  animation: fadeInUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

section:nth-child(2) { animation-delay: 0.05s; }
section:nth-child(3) { animation-delay: 0.1s; }
section:nth-child(4) { animation-delay: 0.15s; }
section:nth-child(5) { animation-delay: 0.2s; }
section:nth-child(6) { animation-delay: 0.25s; }
section:nth-child(7) { animation-delay: 0.3s; }
section:nth-child(8) { animation-delay: 0.35s; }

section > h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  position: relative;
  letter-spacing: 0.01em;
}

section > h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 64px;
  height: 4px;
  border-radius: 2px;
  background: var(--gradient-accent);
}

section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.975rem;
}

section h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.75rem 0 0.75rem;
  padding-left: 0.85rem;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}

section h3:first-of-type {
  margin-top: 0.5rem;
}

/* ========== HERO ========== */
#hero {
  position: relative;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-xl);
  background: var(--gradient-hero);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-glass-border);
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(233, 69, 96, 0.25) 0%, transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(83, 52, 131, 0.3) 0%, transparent 50%);
  pointer-events: none;
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, #ffd6dc 50%, #f2a154 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: -0.01em;
}

@media (prefers-color-scheme: light) {
  #hero h1 {
    background: linear-gradient(135deg, #1a1a2e 0%, #533483 55%, #e94560 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

#hero > p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 72ch;
  margin-bottom: 1.75rem;
}

#hero figure {
  margin: 0 0 1.75rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--bg-glass-border);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

#hero figure:hover {
  transform: translateY(-4px) scale(1.005);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

#hero figure svg {
  width: 100%;
  height: auto;
}

#hero figcaption {
  padding: 0.65rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--bg-glass-border);
  text-align: center;
}

#hero > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

#hero > ul li {
  padding: 0.85rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-md);
  position: relative;
  padding-left: 2.4rem;
  transition: transform var(--transition-base), background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

#hero > ul li::before {
  content: "✦";
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-secondary);
  font-size: 1rem;
}

#hero > ul li:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}

/* ========== CARDS (generic for brand/products/solutions/cases) ========== */
#brand,
#products,
#solutions,
#cases,
#news,
#articles,
#howto,
#knowledge,
#faq,
#contact,
#sitemap,
#links {
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

#brand:hover,
#products:hover,
#solutions:hover,
#cases:hover,
#news:hover,
#articles:hover,
#howto:hover,
#knowledge:hover,
#faq:hover,
#contact:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.28);
}

#brand ul,
#products ul,
#solutions ul,
#howto ul,
#sitemap ul,
#links ul {
  display: grid;
  gap: 0.6rem;
  margin: 1rem 0;
}

#brand ul li,
#products ul li,
#solutions ul li,
#howto ul li,
#sitemap ul li,
#links ul li {
  position: relative;
  padding: 0.6rem 1rem 0.6rem 2.2rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  background: var(--gradient-card);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

#brand ul li::before,
#products ul li::before,
#solutions ul li::before,
#howto ul li::before,
#sitemap ul li::before,
#links ul li::before {
  content: "▸";
  position: absolute;
  left: 0.85rem;
  color: var(--accent);
  font-weight: 700;
  transition: transform var(--transition-fast);
}

#brand ul li:hover,
#products ul li:hover,
#solutions ul li:hover,
#howto ul li:hover,
#sitemap ul li:hover,
#links ul li:hover {
  transform: translateX(4px);
  border-color: var(--bg-glass-border);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

#brand ul li:hover::before,
#products ul li:hover::before,
#solutions ul li:hover::before,
#howto ul li:hover::before,
#sitemap ul li:hover::before,
#links ul li:hover::before {
  transform: translateX(3px);
}

#products ul {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

#howto ol {
  counter-reset: step;
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
}

#howto ol li {
  counter-increment: step;
  position: relative;
  padding: 0.9rem 1rem 0.9rem 3.4rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--bg-glass-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.9rem;
  height: 1.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  background: var(--gradient-accent);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(233, 69, 96, 0.35);
}

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

/* ========== NEWS & ARTICLES ========== */
#news article,
#articles article {
  padding: 1.4rem 1.5rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

#news article::before,
#articles article::before {
  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-base);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
  background: var(--bg-card-hover);
}

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

#news article:last-child,
#articles article:last-child {
  margin-bottom: 0;
}

#news article h3,
#articles article h3 {
  margin: 0 0 0.5rem;
  padding-left: 0;
  border-left: none;
  font-size: 1.1rem;
  line-height: 1.45;
  transition: color var(--transition-fast);
}

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

#news article p:first-of-type,
#articles article p:first-of-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

#news article p:first-of-type::before,
#articles article p:first-of-type::before {
  content: "🕐";
  font-size: 0.75rem;
}

#news article p,
#articles article p {
  font-size: 0.925rem;
  margin-bottom: 0.75rem;
}

#news article a,
#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: rgba(233, 69, 96, 0.08);
  transition: background var(--transition-fast), gap var(--transition-fast), color var(--transition-fast);
}

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

#news article a:hover,
#articles article a:hover {
  background: rgba(233, 69, 96, 0.18);
  color: var(--accent-light);
}

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

/* ========== CASES BLOCKQUOTE ========== */
#cases blockquote {
  margin: 1rem 0;
  padding: 1.2rem 1.5rem 1.2rem 2.8rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--text-secondary);
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-secondary);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

#cases blockquote::before {
  content: "\201C";
  position: absolute;
  left: 0.8rem;
  top: 0.3rem;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--accent);
  opacity: 0.5;
  font-family: Georgia, serif;
}

#cases blockquote p {
  margin: 0;
  font-style: italic;
  line-height: 1.8;
}

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

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

#faq details:last-child {
  margin-bottom: 0;
}

#faq details[open] {
  border-color: rgba(233, 69, 96, 0.35);
  box-shadow: var(--shadow-sm);
  background: var(--bg-card-hover);
}

#faq summary {
  padding: 1rem 3rem 1rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  position: relative;
  list-style: none;
  transition: color var(--transition-fast), background var(--transition-fast);
  user-select: none;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform var(--transition-base), color var(--transition-fast);
  line-height: 1;
}

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

#faq summary:hover {
  color: var(--accent);
  background: rgba(233, 69, 96, 0.06);
}

#faq details > p {
  padding: 0 1.25rem 1.1rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  margin: 0;
  animation: fadeIn 0.3s ease both;
}

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

/* ========== CONTACT ========== */
#contact address {
  font-style: normal;
  display: grid;
  gap: 0.75rem;
  margin: 1rem 0;
}

#contact address p {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  font-size: 0.925rem;
  background: var(--gradient-card);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
  margin: 0;
}

#contact address p:hover {
  border-color: var(--bg-glass-border);
  transform: translateX(3px);
}

#contact address a {
  font-weight: 600;
}

/* ========== FOOTER ========== */
footer {
  margin-top: 3rem;
  padding: 2.5rem 1.5rem 1.5rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--bg-glass-border);
  position: relative;
}

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

footer > section {
  max-width: var(--max-width);
  margin: 0 auto 1.75rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--bg-glass-border);
  animation: none;
  transition: border-color var(--transition-base);
}

footer > section:hover {
  border-color: rgba(233, 69, 96, 0.25);
}

footer > section h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  padding-bottom: 0;
  position: relative;
  display: inline-block;
}

footer > section h2::after {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  margin-top: 0.35rem;
  background: var(--gradient-accent);
  border-radius: 1px;
}

footer > section p {
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 0;
}

footer > p {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--bg-glass-border);
}

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-purple) 100%);
  border-radius: 10px;
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-light) 0%, var(--accent) 100%);
}

/* ========== SELECTION ========== */
::selection {
  background: rgba(233, 69, 96, 0.35);
  color: var(--text-primary);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 960px) {
  header > div {
    padding: 0.65rem 1rem;
    gap: 0.75rem;
  }

  header nav {
    order: 3;
    flex-basis: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  header nav::-webkit-scrollbar {
    display: none;
  }

  header nav ul {
    flex-wrap: nowrap;
    gap: 0.15rem;
    padding-bottom: 0.25rem;
  }

  header nav a {
    white-space: nowrap;
    font-size: 0.82rem;
    padding: 0.3rem 0.6rem;
  }

  header form[role="search"] {
    flex: 1 1 auto;
    max-width: none;
  }

  main {
    padding: 1rem;
  }

  section {
    margin-bottom: 2.5rem;
  }

  #brand,
  #products,
  #solutions,
  #cases,
  #news,
  #articles,
  #howto,
  #knowledge,
  #faq,
  #contact,
  #sitemap,
  #links {
    padding: 1.5rem 1.25rem;
  }

  #hero {
    padding: 1.75rem 1.25rem;
    border-radius: var(--radius-lg);
  }

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

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  header > div {
    padding: 0.6rem 0.85rem;
  }

  header > div > a {
    font-size: 1.15rem;
  }

  header form[role="search"] {
    flex-basis: 100%;
    order: 2;
    margin-top: 0.15rem;
  }

  header form[role="search"] input[type="search"] {
    padding: 0.5rem 0.9rem;
    font-size: 0.82rem;
  }

  header form[role="search"] button {
    padding: 0.5rem 0.9rem;
    font-size: 0.82rem;
  }

  header nav {
    order: 3;
  }

  main {
    padding: 0.85rem;
  }

  section > h2 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
  }

  section h3 {
    font-size: 1.05rem;
    margin: 1.4rem 0 0.6rem;
    padding-left: 0.7rem;
    border-left-width: 3px;
  }

  #hero {
    padding: 1.5rem 1rem;
    border-radius: var(--radius-md);
  }

  #hero h1 {
    font-size: 1.4rem;
    line-height: 1.35;
  }

  #hero > p {
    font-size: 0.92rem;
    line-height: 1.8;
  }

  #hero > ul li {
    padding: 0.7rem 0.9rem 0.7rem 2.1rem;
    font-size: 0.85rem;
  }

  #hero > ul li::before {
    left: 0.8rem;
  }

  #brand,
  #products,
  #solutions,
  #cases,
  #news,
  #articles,
  #howto,
  #knowledge,
  #faq,
  #contact,
  #sitemap,
  #links {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-md);
  }

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

  #howto ol li {
    padding: 0.8rem 0.85rem 0.8rem 3rem;
    font-size: 0.875rem;
  }

  #howto ol li::before {
    left: 0.7rem;
    width: 1.6rem;
    height: 1.6rem;
    font-size: 0.75rem;
  }

  #news article,
  #articles article {
    padding: 1.1rem 1rem;
  }

  #news article h3,
  #articles article h3 {
    font-size: 1rem;
  }

  #faq summary {
    padding: 0.85rem 2.5rem 0.85rem 1rem;
    font-size: 0.9rem;
  }

  #faq details > p {
    padding: 0 1rem 0.9rem;
    font-size: 0.875rem;
  }

  #cases blockquote {
    padding: 1rem 1rem 1rem 2.2rem;
    font-size: 0.875rem;
  }

  #cases blockquote::before {
    font-size: 2rem;
    left: 0.5rem;
  }

  footer {
    padding: 1.75rem 0.85rem 1rem;
  }

  footer > section {
    padding: 1rem;
  }

  footer > section h2 {
    font-size: 0.92rem;
  }

  footer > section p {
    font-size: 0.8rem;
  }

  footer > p {
    font-size: 0.72rem;
    line-height: 1.6;
  }
}

/* ========== 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;
  }

  section {
    animation: none;
  }
}

/* ========== PRINT ========== */
@media print {
  header,
  footer::before,
  #sitemap,
  #links {
    display: none;
  }

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

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

  a {
    color: #000;
    text-decoration: underline;
  }
}