:root {
  --brand-primary: #2E7D32;
  --brand-primary-light: #4CAF50;
  --brand-primary-dark: #1B5E20;
  --brand-accent: #FFB300;
  --brand-accent-light: #FFD54F;
  --bg-base: #F1F8E9;
  --bg-surface: #FFFFFF;
  --bg-surface-alt: #F7FBF3;
  --bg-elevated: rgba(255, 255, 255, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --bg-glass-strong: rgba(255, 255, 255, 0.78);
  --border-soft: rgba(46, 125, 50, 0.14);
  --border-medium: rgba(46, 125, 50, 0.24);
  --text-primary: #1A2E1C;
  --text-secondary: #3E5A42;
  --text-tertiary: #6B826E;
  --text-inverse: #FFFFFF;
  --shadow-sm: 0 2px 8px rgba(27, 94, 32, 0.06);
  --shadow-md: 0 8px 24px rgba(27, 94, 32, 0.09);
  --shadow-lg: 0 16px 48px rgba(27, 94, 32, 0.14);
  --shadow-glow: 0 0 0 3px rgba(76, 175, 80, 0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "JetBrains Mono", Consolas, monospace;
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand-primary: #66BB6A;
    --brand-primary-light: #81C784;
    --brand-primary-dark: #2E7D32;
    --brand-accent: #FFCA28;
    --brand-accent-light: #FFE082;
    --bg-base: #0D1A0F;
    --bg-surface: #142018;
    --bg-surface-alt: #1A2A1E;
    --bg-elevated: rgba(20, 32, 24, 0.78);
    --bg-glass: rgba(20, 32, 24, 0.55);
    --bg-glass-strong: rgba(20, 32, 24, 0.82);
    --border-soft: rgba(102, 187, 106, 0.16);
    --border-medium: rgba(102, 187, 106, 0.28);
    --text-primary: #E8F5E9;
    --text-secondary: #B7D4BA;
    --text-tertiary: #8AA88E;
    --text-inverse: #0D1A0F;
    --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);
    --shadow-glow: 0 0 0 3px rgba(102, 187, 106, 0.25);
  }
}

html[data-theme="dark"] {
  --brand-primary: #66BB6A;
  --brand-primary-light: #81C784;
  --brand-primary-dark: #2E7D32;
  --brand-accent: #FFCA28;
  --brand-accent-light: #FFE082;
  --bg-base: #0D1A0F;
  --bg-surface: #142018;
  --bg-surface-alt: #1A2A1E;
  --bg-elevated: rgba(20, 32, 24, 0.78);
  --bg-glass: rgba(20, 32, 24, 0.55);
  --bg-glass-strong: rgba(20, 32, 24, 0.82);
  --border-soft: rgba(102, 187, 106, 0.16);
  --border-medium: rgba(102, 187, 106, 0.28);
  --text-primary: #E8F5E9;
  --text-secondary: #B7D4BA;
  --text-tertiary: #8AA88E;
  --text-inverse: #0D1A0F;
  --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);
  --shadow-glow: 0 0 0 3px rgba(102, 187, 106, 0.25);
}

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

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

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

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-primary-light);
}

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

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

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.4rem); }
h4 { font-size: 1.1rem; }

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

ul, ol {
  padding-left: 1.4em;
  margin-bottom: 1em;
}

li {
  margin-bottom: 0.4em;
  color: var(--text-secondary);
}

blockquote {
  margin: 1.5em 0;
  padding: 1.25em 1.5em;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-left: 4px solid var(--brand-accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

blockquote p {
  margin-bottom: 0.5em;
  font-style: italic;
  color: var(--text-primary);
}

blockquote footer {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  text-align: right;
}

time {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.15em 0.45em;
  background: var(--bg-surface-alt);
  border-radius: 6px;
  color: var(--brand-primary-dark);
}

::selection {
  background: var(--brand-primary);
  color: var(--text-inverse);
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--brand-primary-light);
  border-radius: var(--radius-pill);
  border: 2px solid var(--bg-surface-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-primary);
}

header[role="banner"] {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

header[role="banner"] > div {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

header[role="banner"] > div > a[href="/"] {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--brand-primary-dark);
  letter-spacing: 0.02em;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

header[role="banner"] > div > a[href="/"]:hover {
  transform: scale(1.04);
}

header[role="banner"] > div > a[href="/"] svg {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 2px 6px rgba(46, 125, 50, 0.3));
  transition: transform var(--transition-slow);
}

header[role="banner"] > div > a[href="/"]:hover svg {
  transform: rotate(12deg) scale(1.08);
}

nav[role="navigation"] {
  flex: 1;
  min-width: 0;
}

nav[role="navigation"] ul {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

nav[role="navigation"] ul li {
  margin: 0;
}

nav[role="navigation"] ul li a {
  display: block;
  padding: 8px 14px;
  font-size: 0.92rem;
  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);
}

nav[role="navigation"] ul li a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--brand-accent);
  border-radius: var(--radius-pill);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

nav[role="navigation"] ul li a:hover {
  color: var(--brand-primary-dark);
  background: var(--bg-glass);
  transform: translateY(-1px);
}

nav[role="navigation"] ul li a:hover::after {
  width: 60%;
}

form[role="search"] {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
  flex-shrink: 0;
}

form[role="search"]:focus-within {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-glow);
}

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

form[role="search"] input[type="search"] {
  border: none;
  background: transparent;
  padding: 9px 16px;
  font-size: 0.88rem;
  color: var(--text-primary);
  width: 180px;
  font-family: inherit;
  outline: none;
  transition: width var(--transition-base);
}

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

form[role="search"] input[type="search"]:focus {
  width: 220px;
}

form[role="search"] button[type="submit"] {
  border: none;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
  color: var(--text-inverse);
  padding: 9px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: filter var(--transition-fast), transform var(--transition-fast);
}

form[role="search"] button[type="submit"]:hover {
  filter: brightness(1.1);
}

form[role="search"] button[type="submit"]:active {
  transform: scale(0.97);
}

header[role="banner"] button[type="button"] {
  border: 1px solid var(--border-soft);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-secondary);
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
}

header[role="banner"] button[type="button"]:hover {
  background: var(--brand-primary);
  color: var(--text-inverse);
  border-color: var(--brand-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

header[role="banner"] button[type="button"]:active {
  transform: translateY(0) scale(0.97);
}

header[role="banner"] button[aria-label="打开移动菜单"] {
  display: none;
}

main[role="main"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 80px;
}

main > section {
  margin-bottom: 72px;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

#hero {
  position: relative;
  margin-top: 32px;
  margin-bottom: 48px;
  padding: 64px 48px 56px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #1B5E20 0%, #2E7D32 35%, #43A047 65%, #66BB6A 100%);
  color: var(--text-inverse);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 179, 0, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(255, 255, 255, 0.14) 0%, transparent 50%),
    radial-gradient(circle at 50% 120%, rgba(0, 0, 0, 0.18) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.16) 0%, transparent 70%);
  z-index: -1;
  animation: floatOrb 12s ease-in-out infinite;
  pointer-events: none;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-40px, 30px) scale(1.1); }
}

#hero h1 {
  color: #FFFFFF;
  margin-bottom: 20px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
  animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

#hero > p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.05rem;
  max-width: 820px;
  margin-bottom: 16px;
  animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

#hero > p:nth-of-type(2) {
  animation-delay: 0.2s;
}

#hero > div {
  margin: 32px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

#hero > div:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.32);
}

#hero > div svg {
  width: 100%;
  height: auto;
  display: block;
}

#hero > a {
  display: inline-block;
  padding: 13px 30px;
  margin-right: 14px;
  margin-top: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base);
  animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.4s both;
}

#hero > a:first-of-type {
  background: var(--brand-accent);
  color: #1A2E1C;
  box-shadow: 0 8px 24px rgba(255, 179, 0, 0.35);
}

#hero > a:first-of-type:hover {
  background: var(--brand-accent-light);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 179, 0, 0.45);
  color: #1A2E1C;
}

#hero > a:last-of-type {
  background: rgba(255, 255, 255, 0.16);
  color: #FFFFFF;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#hero > a:last-of-type:hover {
  background: rgba(255, 255, 255, 0.28);
  color: #FFFFFF;
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

nav[aria-label="面包屑导航"] {
  margin-bottom: 40px;
  padding: 14px 22px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

nav[aria-label="面包屑导航"] ol {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  font-size: 0.88rem;
}

nav[aria-label="面包屑导航"] ol li {
  margin: 0;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

nav[aria-label="面包屑导航"] ol li a {
  color: var(--brand-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

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

main > section > h2 {
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 32px;
  color: var(--text-primary);
}

main > section > h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 64px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
  transition: width var(--transition-slow);
}

main > section:hover > h2::after {
  width: 120px;
}

main > section > h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--brand-primary-dark);
  padding-left: 16px;
  position: relative;
}

main > section > h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25em;
  bottom: 0.25em;
  width: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
}

main > section > h4 {
  margin-top: 24px;
  margin-bottom: 10px;
  color: var(--text-primary);
}

main > section > p,
main > section > ul,
main > section > ol {
  max-width: 900px;
}

#about,
#products,
#solutions,
#applications,
#cases,
#news,
#articles,
#faq,
#howto,
#contact,
#sitemap,
#links,
#privacy,
#disclaimer,
#copyright {
  background: var(--bg-surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

#about:hover,
#products:hover,
#solutions:hover,
#applications:hover,
#cases:hover,
#news:hover,
#articles:hover,
#faq:hover,
#howto:hover,
#contact:hover,
#sitemap:hover,
#links:hover,
#privacy:hover,
#disclaimer:hover,
#copyright:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

#news article,
#articles article {
  padding: 24px 26px;
  margin-bottom: 18px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  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: linear-gradient(180deg, var(--brand-primary) 0%, var(--brand-accent) 100%);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-slow);
}

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

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

#news article h3,
#articles article h3 {
  margin-top: 0;
  margin-bottom: 8px;
  padding-left: 0;
  color: var(--text-primary);
  font-size: 1.15rem;
  transition: color var(--transition-fast);
}

#news article h3::before,
#articles article h3::before {
  display: none;
}

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

#news article time,
#articles article time {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 12px;
  background: var(--bg-glass);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--brand-primary-dark);
}

#news article p,
#articles article p {
  margin-bottom: 12px;
  font-size: 0.95rem;
}

#news article a,
#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-primary);
  padding: 6px 16px;
  border: 1.5px solid var(--brand-primary);
  border-radius: var(--radius-pill);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow 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: var(--brand-primary);
  color: var(--text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

#news article a:hover::after,
#articles article a:hover::after {
  transform: translateX(4px);
}

#faq details {
  margin-bottom: 14px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

#faq details[open] {
  background: var(--bg-surface);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

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

#faq summary {
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

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

#faq summary::after {
  content: "+";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--brand-primary);
  background: var(--bg-glass);
  border: 1px solid var(--border-soft);
  border-radius: 50%;
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
}

#faq details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: var(--brand-primary);
  color: var(--text-inverse);
  border-color: var(--brand-primary);
}

#faq summary:hover {
  color: var(--brand-primary);
  background: var(--bg-glass);
}

#faq details > p {
  padding: 0 24px 20px;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--text-secondary);
  animation: fadeInUp 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

#howto ol {
  counter-reset: howto-step;
  list-style: none;
  padding-left: 0;
  max-width: 900px;
}

#howto ol li {
  counter-increment: howto-step;
  position: relative;
  padding: 16px 20px 16px 64px;
  margin-bottom: 12px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#howto ol li::before {
  content: counter(howto-step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-inverse);
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
  transition: transform var(--transition-base);
}

#howto ol li:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

#howto ol li:hover::before {
  transform: translateY(-50%) scale(1.12);
}

#contact ul,
#sitemap ul,
#links ul {
  list-style: none;
  padding-left: 0;
  max-width: 900px;
}

#contact ul li {
  padding: 12px 18px;
  margin-bottom: 8px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

#contact ul li:hover {
  transform: translateX(4px);
  background: var(--bg-glass);
  border-color: var(--border-medium);
}

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

#sitemap ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

#sitemap ul li {
  margin: 0;
}

#sitemap ul li a {
  display: block;
  padding: 14px 18px;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#sitemap ul li a:hover {
  transform: translateY(-4px);
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

#links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#links ul li {
  margin: 0;
}

#links ul li a {
  display: inline-block;
  padding: 10px 22px;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

#links ul li a:hover {
  transform: translateY(-3px);
  background: var(--brand-primary);
  color: var(--text-inverse);
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-md);
}

#copyright p:last-child {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-soft);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  text-align: center;
}

footer[role="contentinfo"] {
  position: relative;
  margin-top: 40px;
  padding: 56px 24px 40px;
  background: linear-gradient(160deg, #1B5E20 0%, #2E7D32 50%, #1B5E20 100%);
  color: rgba(255, 255, 255, 0.88);
  text-align: center;
  overflow: hidden;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.1) 0%, transparent 65%);
  pointer-events: none;
}

footer[role="contentinfo"] > p {
  position: relative;
  margin-bottom: 10px;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.82);
}

footer[role="contentinfo"] > p:first-child {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

footer[role="contentinfo"] a {
  color: var(--brand-accent);
  font-weight: 600;
  transition: color var(--transition-fast), text-decoration var(--transition-fast);
}

footer[role="contentinfo"] a:hover {
  color: var(--brand-accent-light);
  text-decoration: underline;
}

footer[role="contentinfo"] > p:last-child {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
}

body > button[type="button"][aria-label="返回顶部"] {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 52px;
  height: 52px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
  color: var(--text-inverse);
  font-size: 0;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
  opacity: 0.9;
}

body > button[type="button"][aria-label="返回顶部"]::before {
  content: "↑";
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
}

body > button[type="button"][aria-label="返回顶部"]:hover {
  transform: translateY(-5px) scale(1.08);
  box-shadow: 0 20px 48px rgba(46, 125, 50, 0.4);
  opacity: 1;
}

body > button[type="button"][aria-label="返回顶部"]:active {
  transform: translateY(-2px) scale(1.02);
}

main > section,
#hero,
nav[aria-label="面包屑导航"],
blockquote,
#news article,
#articles article,
#faq details,
#howto ol li,
#sitemap ul li a,
#contact ul li {
  animation: revealOnScroll 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-timeline: view();
  animation-range: entry 0% cover 30%;
}

@supports not (animation-timeline: view()) {
  main > section,
  #hero,
  nav[aria-label="面包屑导航"],
  blockquote,
  #news article,
  #articles article,
  #faq details,
  #howto ol li,
  #sitemap ul li a,
  #contact ul li {
    animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
}

@keyframes revealOnScroll {
  from {
    opacity: 0;
    transform: translateY(36px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@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 (max-width: 1024px) {
  header[role="banner"] > div {
    padding: 0 18px;
    gap: 14px;
  }

  nav[role="navigation"] ul li a {
    padding: 8px 10px;
    font-size: 0.86rem;
  }

  form[role="search"] input[type="search"] {
    width: 140px;
  }

  form[role="search"] input[type="search"]:focus {
    width: 170px;
  }

  main[role="main"] {
    padding: 0 18px 64px;
  }

  #hero {
    padding: 48px 32px 44px;
  }

  #about,
  #products,
  #solutions,
  #applications,
  #cases,
  #news,
  #articles,
  #faq,
  #howto,
  #contact,
  #sitemap,
  #links,
  #privacy,
  #disclaimer,
  #copyright {
    padding: 36px 28px;
  }
}

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

  body {
    font-size: 15px;
  }

  header[role="banner"] > div {
    padding: 10px 16px;
    min-height: var(--header-height);
    gap: 10px;
    flex-wrap: wrap;
  }

  header[role="banner"] > div > a[href="/"] {
    font-size: 1.15rem;
  }

  header[role="banner"] > div > a[href="/"] svg {
    width: 34px;
    height: 34px;
  }

  nav[role="navigation"] {
    order: 10;
    flex-basis: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  nav[role="navigation"]::-webkit-scrollbar {
    display: none;
  }

  nav[role="navigation"] ul {
    flex-wrap: nowrap;
    gap: 2px;
    padding-bottom: 4px;
  }

  nav[role="navigation"] ul li a {
    white-space: nowrap;
    padding: 7px 12px;
    font-size: 0.82rem;
  }

  form[role="search"] {
    flex: 1;
    min-width: 0;
  }

  form[role="search"] input[type="search"] {
    width: 100%;
    min-width: 0;
    padding: 8px 12px;
  }

  form[role="search"] input[type="search"]:focus {
    width: 100%;
  }

  form[role="search"] button[type="submit"] {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  header[role="banner"] button[type="button"] {
    padding: 7px 12px;
    font-size: 0.76rem;
  }

  header[role="banner"] button[aria-label="打开移动菜单"] {
    display: inline-block;
  }

  main[role="main"] {
    padding: 0 16px 56px;
  }

  main > section {
    margin-bottom: 48px;
  }

  #hero {
    margin-top: 20px;
    padding: 36px 22px 32px;
    border-radius: var(--radius-lg);
  }

  #hero h1 {
    font-size: 1.6rem;
  }

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

  #hero > div {
    margin: 24px 0;
    border-radius: var(--radius-md);
  }

  #hero > a {
    display: block;
    width: 100%;
    text-align: center;
    margin-right: 0;
    margin-bottom: 10px;
    padding: 12px 24px;
  }

  nav[aria-label="面包屑导航"] {
    padding: 12px 16px;
    margin-bottom: 28px;
  }

  main > section > h2 {
    font-size: 1.35rem;
    margin-bottom: 24px;
  }

  main > section > h3 {
    font-size: 1.1rem;
    margin-top: 24px;
  }

  #about,
  #products,
  #solutions,
  #applications,
  #cases,
  #news,
  #articles,
  #faq,
  #howto,
  #contact,
  #sitemap,
  #links,
  #privacy,
  #disclaimer,
  #copyright {
    padding: 26px 20px;
    border-radius: var(--radius-md);
  }

  #news article,
  #articles article {
    padding: 20px 18px;
  }

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

  #faq summary {
    padding: 15px 18px;
    font-size: 0.94rem;
  }

  #faq details > p {
    padding: 0 18px 16px;
    font-size: 0.9rem;
  }

  #howto ol li {
    padding: 14px 16px 14px 56px;
  }

  #howto ol li::before {
    left: 12px;
    width: 30px;
    height: 30px;
    font-size: 0.82rem;
  }

  #sitemap ul {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
  }

  #sitemap ul li a {
    padding: 12px 14px;
    font-size: 0.86rem;
  }

  #links ul {
    gap: 10px;
  }

  #links ul li a {
    padding: 9px 18px;
    font-size: 0.84rem;
  }

  footer[role="contentinfo"] {
    padding: 40px 18px 32px;
  }

  footer[role="contentinfo"] > p {
    font-size: 0.86rem;
  }

  footer[role="contentinfo"] > p:first-child {
    font-size: 1rem;
  }

  body > button[type="button"][aria-label="返回顶部"] {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
  }

  body > button[type="button"][aria-label="返回顶部"]::before {
    font-size: 1.2rem;
  }

  blockquote {
    padding: 16px 18px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14.5px;
  }

  #hero {
    padding: 28px 16px 26px;
  }

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

  #hero > p {
    font-size: 0.9rem;
  }

  main > section > h2 {
    font-size: 1.2rem;
  }

  main > section > h3 {
    font-size: 1.02rem;
  }

  #about,
  #products,
  #solutions,
  #applications,
  #cases,
  #news,
  #articles,
  #faq,
  #howto,
  #contact,
  #sitemap,
  #links,
  #privacy,
  #disclaimer,
  #copyright {
    padding: 22px 16px;
  }

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

  #links ul {
    flex-direction: column;
  }

  #links ul li a {
    display: block;
    text-align: center;
  }

  header[role="banner"] > div > a[href="/"] span {
    font-size: 1rem;
  }
}

@media (hover: none) {
  #news article:hover,
  #articles article:hover {
    transform: none;
  }

  #sitemap ul li a:hover {
    transform: none;
  }

  #howto ol li:hover {
    transform: none;
  }

  #contact ul li:hover {
    transform: none;
  }
}

@media print {
  header[role="banner"],
  footer[role="contentinfo"],
  body > button[type="button"],
  nav[aria-label="面包屑导航"],
  form[role="search"] {
    display: none;
  }

  body {
    background: #FFFFFF;
    color: #000000;
    font-size: 12pt;
  }

  main[role="main"] {
    max-width: 100%;
    padding: 0;
  }

  main > section {
    box-shadow: none;
    border: 1px solid #CCCCCC;
    page-break-inside: avoid;
    margin-bottom: 24px;
  }

  #hero {
    background: #F5F5F5 !important;
    color: #000000 !important;
    box-shadow: none;
  }

  #hero h1,
  #hero > p {
    color: #000000 !important;
  }

  a {
    color: #000000;
    text-decoration: underline;
  }
}

@supports (backdrop-filter: blur(10px)) {
  header[role="banner"],
  form[role="search"],
  nav[aria-label="面包屑导航"],
  blockquote {
    background: var(--bg-glass-strong);
  }
}

@supports not (backdrop-filter: blur(10px)) {
  header[role="banner"] {
    background: var(--bg-surface);
  }

  form[role="search"],
  nav[aria-label="面包屑导航"],
  blockquote {
    background: var(--bg-surface-alt);
  }
}