:root {
  --primary: #e94560;
  --primary-dark: #c81e3e;
  --secondary: #533483;
  --accent: #0f3460;
  --bg: #f8f9fc;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8a8aa0;
  --border: #e2e4ec;
  --shadow-sm: 0 2px 8px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 26, 46, 0.1);
  --shadow-lg: 0 16px 48px rgba(26, 26, 46, 0.14);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 70%, #533483 100%);
  --gradient-primary: linear-gradient(135deg, #e94560 0%, #533483 100%);
  --gradient-accent: linear-gradient(135deg, #0f3460 0%, #533483 100%);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d1a;
    --bg-alt: #141428;
    --surface: #1a1a2e;
    --surface-glass: rgba(26, 26, 46, 0.78);
    --text: #eaeaf2;
    --text-secondary: #b0b0c8;
    --text-muted: #6a6a88;
    --border: #2a2a45;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -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);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 60% at 10% 0%, rgba(233, 69, 96, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 10%, rgba(83, 52, 131, 0.06), transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.75rem;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  background: var(--gradient-primary);
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}

h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

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

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

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

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
  border: 2px solid var(--bg-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition), background var(--transition);
  animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1) both;
}

header:hover {
  box-shadow: var(--shadow-md);
}

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

.header-inner > a {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform var(--transition), filter var(--transition);
}

.header-inner > a:hover {
  transform: scale(1.04);
  filter: drop-shadow(0 4px 12px rgba(233, 69, 96, 0.3));
}

.header-inner svg {
  display: block;
}

nav[aria-label="主导航"] ul {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

nav[aria-label="主导航"] a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

nav[aria-label="主导航"] a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 1px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

nav[aria-label="主导航"] a:hover {
  color: var(--text);
  background: rgba(233, 69, 96, 0.08);
  transform: translateY(-1px);
}

nav[aria-label="主导航"] a:hover::after {
  transform: scaleX(1);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

section {
  margin-bottom: 56px;
  animation: fadeInUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) both;
}

section:nth-of-type(1) { animation-delay: 0.05s; }
section:nth-of-type(2) { animation-delay: 0.1s; }
section:nth-of-type(3) { animation-delay: 0.15s; }
section:nth-of-type(4) { animation-delay: 0.2s; }
section:nth-of-type(5) { animation-delay: 0.25s; }
section:nth-of-type(6) { animation-delay: 0.3s; }
section:nth-of-type(7) { animation-delay: 0.35s; }
section:nth-of-type(8) { animation-delay: 0.4s; }
section:nth-of-type(9) { animation-delay: 0.45s; }
section:nth-of-type(10) { animation-delay: 0.5s; }
section:nth-of-type(11) { animation-delay: 0.55s; }
section:nth-of-type(12) { animation-delay: 0.6s; }
section:nth-of-type(13) { animation-delay: 0.65s; }
section:nth-of-type(14) { animation-delay: 0.7s; }

#hero {
  position: relative;
  margin: 0 -24px 56px;
  padding: 64px 48px 56px;
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  background: var(--gradient-hero);
  background-size: 200% 200%;
  animation: gradientShift 12s ease infinite, fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(233, 69, 96, 0.25), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(83, 52, 131, 0.35), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(15, 52, 96, 0.4), transparent 60%);
  z-index: -1;
  animation: pulseGlow 8s ease-in-out infinite alternate;
}

#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -1;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

#hero h1 {
  color: #fff;
  margin-bottom: 1.25rem;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.8s 0.15s cubic-bezier(0.4, 0, 0.2, 1) both;
}

#hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 760px;
  font-size: 1.05rem;
  animation: fadeInUp 0.8s 0.25s cubic-bezier(0.4, 0, 0.2, 1) both;
}

#hero strong {
  color: #fff;
  background: linear-gradient(120deg, rgba(233, 69, 96, 0.4), rgba(83, 52, 131, 0.4));
  padding: 1px 6px;
  border-radius: 4px;
}

#hero figure {
  margin-top: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.8s 0.35s cubic-bezier(0.4, 0, 0.2, 1) both;
  transition: transform var(--transition), box-shadow var(--transition);
}

#hero figure:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

#hero figure svg {
  width: 100%;
  display: block;
}

#hero figcaption {
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

nav[aria-label="面包屑导航"] {
  margin-bottom: 40px;
  padding: 12px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition), transform var(--transition);
}

nav[aria-label="面包屑导航"]:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

nav[aria-label="面包屑导航"] ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

nav[aria-label="面包屑导航"] li {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav[aria-label="面包屑导航"] li + li::before {
  content: "/";
  color: var(--text-muted);
  opacity: 0.5;
}

nav[aria-label="面包屑导航"] a {
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}

nav[aria-label="面包屑导航"] a:hover {
  color: var(--primary);
  background: rgba(233, 69, 96, 0.08);
}

#brand,
#products,
#solutions,
#cases,
#news,
#howto,
#faq,
#contact,
#sitemap,
#links,
#legal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

#brand:hover,
#products:hover,
#solutions:hover,
#cases:hover,
#news:hover,
#howto:hover,
#faq:hover,
#contact:hover,
#sitemap:hover,
#links:hover,
#legal:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(233, 69, 96, 0.25);
}

#products ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

#products ul li {
  position: relative;
  padding: 14px 18px 14px 44px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

#products ul li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gradient-primary);
  box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.12);
}

#products ul li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
  background: var(--surface);
  color: var(--text);
}

#solutions h3 {
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

#cases blockquote {
  position: relative;
  margin: 16px 0;
  padding: 20px 24px 20px 56px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-style: normal;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#cases blockquote::before {
  content: "\201C";
  position: absolute;
  left: 18px;
  top: 8px;
  font-size: 3rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.35;
  font-family: Georgia, serif;
}

#cases blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
}

#cases blockquote p {
  margin: 0;
  font-size: 0.95rem;
}

#news article {
  position: relative;
  padding: 24px 28px;
  margin-bottom: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  overflow: hidden;
}

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

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

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

#news article h3 {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: 1.15rem;
  transition: color var(--transition);
}

#news article:hover h3 {
  color: var(--primary);
}

#news article time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding: 2px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
}

#news article p {
  font-size: 0.92rem;
  margin-bottom: 12px;
}

#news article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition), color var(--transition);
}

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

#news article a:hover {
  gap: 10px;
  color: var(--primary-dark);
}

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

#howto ol,
#howto ul {
  margin: 12px 0 20px;
}

#howto ol {
  counter-reset: step;
  display: grid;
  gap: 10px;
}

#howto ol li {
  counter-increment: step;
  position: relative;
  padding: 14px 18px 14px 56px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.93rem;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

#howto ol li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
}

#howto ul li {
  position: relative;
  padding: 8px 0 8px 26px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: color var(--transition), transform var(--transition);
}

#howto ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  transition: background var(--transition);
}

#howto ul li:hover {
  color: var(--text);
  transform: translateX(4px);
}

#faq details {
  margin-bottom: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

#faq details[open] {
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
}

#faq details:hover {
  border-color: rgba(233, 69, 96, 0.35);
}

#faq summary {
  position: relative;
  padding: 18px 52px 18px 22px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: background var(--transition), color var(--transition);
  user-select: none;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

#faq details[open] summary {
  background: rgba(233, 69, 96, 0.06);
  color: var(--primary);
}

#faq details[open] summary::after {
  content: "\2212";
  transform: translateY(-50%) rotate(180deg);
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
}

#faq summary:hover {
  background: rgba(233, 69, 96, 0.05);
}

#faq details p {
  padding: 0 22px 20px;
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  animation: fadeIn 0.35s ease both;
}

#contact address {
  font-style: normal;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

#contact address p {
  position: relative;
  padding: 16px 18px 16px 46px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  margin: 0;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#contact address p::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gradient-primary);
  box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.12);
}

#contact address p:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.3);
}

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

#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

#sitemap ul li a,
#links ul li a {
  display: block;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition), background var(--transition);
}

#sitemap ul li a:hover,
#links ul li a:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(233, 69, 96, 0.35);
  color: var(--primary);
  background: var(--surface);
}

#links ul li a {
  display: flex;
  align-items: center;
  gap: 8px;
}

#links ul li a::before {
  content: "\2197";
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition), transform var(--transition);
}

#links ul li a:hover::before {
  color: var(--primary);
  transform: translate(2px, -2px);
}

#legal h2 {
  margin-top: 28px;
}

#legal h2:first-child {
  margin-top: 0;
}

#legal p {
  font-size: 0.92rem;
}

footer {
  background: var(--gradient-hero);
  background-size: 200% 200%;
  animation: gradientShift 14s ease infinite;
  color: rgba(255, 255, 255, 0.75);
  padding: 48px 24px 32px;
  margin-top: 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(233, 69, 96, 0.15), transparent 60%);
  pointer-events: none;
}

footer p {
  position: relative;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

footer a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 10px 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

footer a::before {
  content: "\2191";
  transition: transform var(--transition);
}

footer a:hover {
  transform: translateY(-3px);
  background: rgba(233, 69, 96, 0.3);
  border-color: rgba(233, 69, 96, 0.5);
  color: #fff;
  box-shadow: 0 8px 24px rgba(233, 69, 96, 0.3);
}

footer a:hover::before {
  transform: translateY(-3px);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes pulseGlow {
  from {
    opacity: 0.7;
    transform: scale(1);
  }
  to {
    opacity: 1;
    transform: scale(1.05);
  }
}

@media (max-width: 1024px) {
  .header-inner {
    padding: 0 20px;
  }

  nav[aria-label="主导航"] a {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  main {
    padding: 0 20px 48px;
  }

  #hero {
    margin: 0 -20px 48px;
    padding: 48px 32px 40px;
  }

  #brand,
  #products,
  #solutions,
  #cases,
  #news,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal {
    padding: 32px 28px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  body {
    font-size: 15px;
  }

  .header-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 16px;
    gap: 10px;
  }

  .header-inner > a svg {
    width: 150px;
    height: 40px;
  }

  nav[aria-label="主导航"] ul {
    justify-content: center;
    gap: 2px;
  }

  nav[aria-label="主导航"] a {
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  nav[aria-label="主导航"] a::after {
    left: 10px;
    right: 10px;
  }

  main {
    padding: 0 16px 40px;
  }

  section {
    margin-bottom: 40px;
  }

  #hero {
    margin: 0 -16px 40px;
    padding: 36px 20px 32px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }

  #hero p {
    font-size: 0.95rem;
  }

  #hero figure {
    margin-top: 24px;
    border-radius: var(--radius-md);
  }

  #hero figcaption {
    font-size: 0.8rem;
    padding: 10px 14px;
  }

  nav[aria-label="面包屑导航"] {
    padding: 10px 14px;
    margin-bottom: 28px;
  }

  nav[aria-label="面包屑导航"] ol {
    font-size: 0.8rem;
  }

  #brand,
  #products,
  #solutions,
  #cases,
  #news,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal {
    padding: 24px 18px;
    border-radius: var(--radius-md);
  }

  h2 {
    padding-bottom: 0.6rem;
  }

  h2::after {
    width: 44px;
    height: 3px;
  }

  #products ul {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  #products ul li {
    padding: 12px 14px 12px 40px;
    font-size: 0.88rem;
  }

  #products ul li::before {
    left: 14px;
    width: 14px;
    height: 14px;
  }

  #cases blockquote {
    padding: 16px 18px 16px 44px;
  }

  #cases blockquote::before {
    left: 12px;
    font-size: 2.2rem;
  }

  #news article {
    padding: 18px 18px;
  }

  #news article h3 {
    font-size: 1.05rem;
  }

  #howto ol li {
    padding: 12px 14px 12px 48px;
    font-size: 0.88rem;
  }

  #howto ol li::before {
    left: 12px;
    width: 24px;
    height: 24px;
    font-size: 0.75rem;
  }

  #faq summary {
    padding: 14px 46px 14px 16px;
    font-size: 0.92rem;
  }

  #faq summary::after {
    right: 16px;
    width: 24px;
    height: 24px;
  }

  #faq details p {
    padding: 0 16px 16px;
    font-size: 0.88rem;
  }

  #contact address {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  #contact address p {
    padding: 14px 14px 14px 42px;
    font-size: 0.88rem;
  }

  #contact address p::before {
    left: 16px;
    width: 10px;
    height: 10px;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
  }

  #sitemap ul li a,
  #links ul li a {
    padding: 10px 12px;
    font-size: 0.85rem;
  }

  footer {
    padding: 36px 16px 24px;
  }

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

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  .header-inner > a svg {
    width: 130px;
    height: 36px;
  }

  nav[aria-label="主导航"] a {
    padding: 5px 8px;
    font-size: 0.75rem;
  }

  #hero {
    padding: 28px 16px 24px;
  }

  #hero h1 {
    font-size: 1.5rem;
  }

  #hero p {
    font-size: 0.88rem;
  }

  #brand,
  #products,
  #solutions,
  #cases,
  #news,
  #howto,
  #faq,
  #contact,
  #sitemap,
  #links,
  #legal {
    padding: 20px 14px;
  }

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

  footer a {
    padding: 8px 18px;
    font-size: 0.8rem;
  }
}

@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;
  }
}

@media print {
  header,
  footer,
  #sitemap,
  #links,
  #legal {
    display: none;
  }

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

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

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