:root {
  --primary: #e8492f;
  --primary-dark: #c93a23;
  --primary-light: #ff6b4a;
  --secondary: #ff9a3c;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --bg: #faf8f5;
  --bg-alt: #f2ede6;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.65);
  --bg-glass-strong: rgba(255, 255, 255, 0.85);
  --text: #2b2320;
  --text-secondary: #6b5f58;
  --text-light: #9c8f87;
  --border: rgba(43, 35, 32, 0.1);
  --border-glass: rgba(255, 255, 255, 0.4);
  --shadow-sm: 0 2px 8px rgba(43, 35, 32, 0.06);
  --shadow-md: 0 8px 24px rgba(43, 35, 32, 0.1);
  --shadow-lg: 0 16px 48px rgba(43, 35, 32, 0.14);
  --shadow-glow: 0 8px 32px rgba(232, 73, 47, 0.25);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --max-width: 1200px;
}

[data-theme="dark"] {
  --primary: #ff6b4a;
  --primary-dark: #e8492f;
  --primary-light: #ff8a6e;
  --secondary: #ffb347;
  --accent: #a29bfe;
  --accent-light: #c4bfff;
  --bg: #12100e;
  --bg-alt: #1a1714;
  --bg-card: #1e1a17;
  --bg-glass: rgba(30, 26, 23, 0.65);
  --bg-glass-strong: rgba(30, 26, 23, 0.85);
  --text: #f0ebe6;
  --text-secondary: #b5aaa2;
  --text-light: #7a706a;
  --border: rgba(240, 235, 230, 0.1);
  --border-glass: rgba(255, 255, 255, 0.08);
  --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 8px 32px rgba(255, 107, 74, 0.2);
}

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

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

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(232, 73, 47, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(108, 92, 231, 0.06), transparent),
    radial-gradient(ellipse 50% 60% at 50% 100%, rgba(255, 154, 60, 0.05), transparent);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  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);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.25rem;
  font-weight: 800;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.75rem;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

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

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

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

blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

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

time {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-light);
  font-variant-numeric: tabular-nums;
}

header[role="banner"] {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition);
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 2rem;
  font-size: 0.8rem;
  color: var(--text-light);
  background: linear-gradient(90deg, rgba(232, 73, 47, 0.06), rgba(108, 92, 231, 0.06));
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.top-bar p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.8rem;
}

.top-bar p:first-child {
  font-weight: 600;
  color: var(--primary);
}

nav[role="navigation"] {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.75rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
}

nav[role="navigation"] .logo {
  flex-shrink: 0;
}

nav[role="navigation"] .logo a {
  display: inline-block;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding: 0.25rem 0;
  transition: transform var(--transition), filter var(--transition);
}

nav[role="navigation"] .logo a:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

nav[role="navigation"] > ul {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  flex: 1;
}

nav[role="navigation"] > ul li a {
  display: block;
  padding: 0.4rem 0.7rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

nav[role="navigation"] > ul li a:hover {
  color: var(--primary);
  background: rgba(232, 73, 47, 0.08);
  transform: translateY(-1px);
}

nav[role="navigation"] form[role="search"] {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

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

nav[role="navigation"] form[role="search"] input[type="search"] {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  width: 180px;
  transition: border-color var(--transition), box-shadow var(--transition), width var(--transition);
  font-family: inherit;
}

nav[role="navigation"] form[role="search"] input[type="search"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 73, 47, 0.15);
  width: 220px;
}

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

nav[role="navigation"] form[role="search"] button {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  white-space: nowrap;
}

nav[role="navigation"] form[role="search"] button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
  filter: brightness(1.05);
}

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

nav[role="navigation"] > button[type="button"] {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), transform var(--transition), background var(--transition);
  white-space: nowrap;
}

nav[role="navigation"] > button[type="button"]:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
  background: rgba(232, 73, 47, 0.05);
}

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

main[role="main"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem;
}

main > section {
  margin-bottom: 3.5rem;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(232, 73, 47, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(232, 73, 47, 0); }
}

#hero {
  position: relative;
  padding: 3rem 2.5rem;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(232, 73, 47, 0.92) 0%, rgba(255, 107, 74, 0.88) 35%, rgba(255, 154, 60, 0.85) 65%, rgba(108, 92, 231, 0.82) 100%),
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.25), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.15), transparent 50%);
  background-size: 200% 200%;
  animation: gradientShift 12s ease infinite;
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-top: 1rem;
}

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

#hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent 70%);
  animation: float 6s ease-in-out infinite;
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 70%);
  animation: float 8s ease-in-out infinite reverse;
  pointer-events: none;
}

#hero h1 {
  color: #fff;
  -webkit-text-fill-color: #fff;
  background: none;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}

#hero > p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 900px;
  position: relative;
  z-index: 1;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.1);
}

#hero .banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
  position: relative;
  z-index: 1;
}

#hero .banner article {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

#hero .banner article:hover {
  transform: translateY(-6px) scale(1.02);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

#hero .banner article h2 {
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 0.5rem;
  padding-bottom: 0;
}

#hero .banner article h2::after {
  display: none;
}

#hero .banner article p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.7;
}

#hero > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  position: relative;
  z-index: 1;
}

#hero > ul li {
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  transition: transform var(--transition), background var(--transition);
}

#hero > ul li:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.28);
}

#hero > ul li strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
}

nav[aria-label="面包屑导航"] {
  margin-bottom: 2rem;
}

nav[aria-label="面包屑导航"] ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-light);
}

nav[aria-label="面包屑导航"] ol li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

nav[aria-label="面包屑导航"] ol li:not(:last-child)::after {
  content: "/";
  color: var(--text-light);
  opacity: 0.5;
}

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

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

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

main > section:not(#hero) {
  padding: 2.5rem;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

main > section:not(#hero):hover {
  box-shadow: var(--shadow-md);
}

main > section:not(#hero) ul:not([aria-label]):not(#hero ul) {
  padding-left: 0;
}

main > section:not(#hero) > ul li,
main > section:not(#hero) > h3 + ul li,
main > section:not(#hero) > ol li,
main > section:not(#hero) > ul {
  position: relative;
}

main > section:not(#hero) ul:not(nav ul):not(#hero ul) li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.75rem;
  color: var(--text-secondary);
  line-height: 1.7;
  transition: color var(--transition), transform var(--transition);
}

main > section:not(#hero) ul:not(nav ul):not(#hero ul) li::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: 1.05rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  transition: transform var(--transition);
}

main > section:not(#hero) ul:not(nav ul):not(#hero ul) li:hover {
  color: var(--text);
  transform: translateX(4px);
}

main > section:not(#hero) ul:not(nav ul):not(#hero ul) li:hover::before {
  transform: scale(1.4);
}

main > section:not(#hero) ol {
  counter-reset: step-counter;
  padding-left: 0;
}

main > section:not(#hero) ol li {
  counter-increment: step-counter;
  position: relative;
  padding: 0.6rem 0 0.6rem 3rem;
  color: var(--text-secondary);
  line-height: 1.7;
  transition: color var(--transition), transform var(--transition);
}

main > section:not(#hero) ol li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(232, 73, 47, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

main > section:not(#hero) ol li:hover {
  color: var(--text);
  transform: translateX(4px);
}

main > section:not(#hero) ol li:hover::before {
  transform: scale(1.1);
  box-shadow: 0 4px 16px rgba(232, 73, 47, 0.45);
}

#products > ul,
#solutions > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

#products > ul li,
#solutions > ul li {
  padding: 1rem 1.25rem 1rem 2.5rem !important;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#products > ul li::before,
#solutions > ul li::before {
  left: 1rem !important;
  top: 1.5rem !important;
}

#products > ul li:hover,
#solutions > ul li:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 73, 47, 0.3);
}

#cases blockquote {
  margin: 1rem 0;
}

#news article,
#articles article {
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

#news article::before,
#articles article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 73, 47, 0.25);
}

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

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

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

#news article p,
#articles article p {
  font-size: 0.92rem;
}

#news article time,
#articles article time {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.7rem;
  font-size: 0.78rem;
  color: var(--primary);
  background: rgba(232, 73, 47, 0.08);
  border-radius: 999px;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

#news article a,
#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: 0.5rem;
  transition: gap var(--transition), color var(--transition);
}

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

#news article a:hover,
#articles article a:hover {
  gap: 0.6rem;
}

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

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

#faq details:hover {
  border-color: rgba(232, 73, 47, 0.3);
  box-shadow: var(--shadow-sm);
}

#faq details[open] {
  border-color: rgba(232, 73, 47, 0.4);
  box-shadow: var(--shadow-md);
}

#faq details summary {
  padding: 1.1rem 3rem 1.1rem 1.25rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  cursor: pointer;
  position: relative;
  list-style: none;
  transition: color var(--transition), background var(--transition);
  user-select: none;
}

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

#faq details summary::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--primary);
  background: rgba(232, 73, 47, 0.1);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

#faq details[open] summary {
  color: var(--primary);
  background: rgba(232, 73, 47, 0.04);
}

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

#faq details summary:hover {
  color: var(--primary);
}

#faq details p {
  padding: 0 1.25rem 1.25rem;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--text-secondary);
  animation: fadeIn var(--transition) both;
}

#howto h3 {
  padding-left: 0.9rem;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

#contact > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0;
}

#contact > ul li {
  padding: 0.85rem 1rem 0.85rem 2.5rem !important;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

#contact > ul li::before {
  left: 1rem !important;
  top: 1.35rem !important;
}

#contact > ul li:hover {
  transform: translateY(-2px) !important;
  border-color: rgba(232, 73, 47, 0.3);
  box-shadow: var(--shadow-sm);
}

#sitemap > ul,
#links > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.5rem;
}

#sitemap > ul li,
#links > ul li {
  padding: 0.6rem 1rem 0.6rem 2.25rem !important;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

#sitemap > ul li::before,
#links > ul li::before {
  left: 0.85rem !important;
  top: 1.15rem !important;
  width: 6px !important;
  height: 6px !important;
}

#sitemap > ul li:hover,
#links > ul li:hover {
  transform: translateX(4px) !important;
  border-color: rgba(232, 73, 47, 0.3);
  background: rgba(232, 73, 47, 0.04);
}

#links > ul li a {
  font-size: 0.9rem;
  font-weight: 500;
}

#legal h3 {
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--border);
}

footer[role="contentinfo"] {
  margin-top: 4rem;
  padding: 3rem 2rem 2rem;
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  position: relative;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

footer[role="contentinfo"] > div {
  max-width: var(--max-width);
  margin: 0 auto 1.5rem;
  text-align: center;
}

footer[role="contentinfo"] > div p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

footer[role="contentinfo"] > div p:first-child strong {
  font-size: 1.05rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] {
  max-width: var(--max-width);
  margin: 0 auto 1.5rem;
  padding: 0;
  display: block;
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] ul li a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition);
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] ul li a:hover {
  color: var(--primary);
}

footer[role="contentinfo"] nav[aria-label="页脚导航"] ul li a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

footer[role="contentinfo"] > p {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-light);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

button[aria-label="返回顶部"] {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 999;
  width: 48px;
  height: 48px;
  padding: 0;
  font-size: 0;
  font-family: inherit;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  opacity: 0.85;
  animation: pulseGlow 3s ease-in-out infinite;
}

button[aria-label="返回顶部"]::before {
  content: "↑";
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
}

button[aria-label="返回顶部"]:hover {
  transform: translateY(-4px) scale(1.08);
  opacity: 1;
  box-shadow: 0 12px 40px rgba(232, 73, 47, 0.45);
}

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

@media (max-width: 1024px) {
  nav[role="navigation"] {
    gap: 0.75rem;
  }
  nav[role="navigation"] > ul {
    gap: 0;
  }
  nav[role="navigation"] > ul li a {
    padding: 0.35rem 0.5rem;
    font-size: 0.85rem;
  }
  nav[role="navigation"] form[role="search"] input[type="search"] {
    width: 140px;
  }
  nav[role="navigation"] form[role="search"] input[type="search"]:focus {
    width: 170px;
  }
}

@media (max-width: 860px) {
  .top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.5rem 1.25rem;
  }
  nav[role="navigation"] {
    padding: 0.75rem 1.25rem;
  }
  nav[role="navigation"] > ul {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 0.15rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
  }
  nav[role="navigation"] form[role="search"] {
    margin-left: auto;
  }
  nav[role="navigation"] > button[aria-label="打开移动菜单"] {
    display: inline-block;
  }
  main[role="main"] {
    padding: 1.5rem 1.25rem;
  }
  main > section:not(#hero) {
    padding: 1.75rem 1.25rem;
  }
  #hero {
    padding: 2rem 1.5rem;
  }
  #hero .banner {
    grid-template-columns: 1fr;
  }
  #hero > ul {
    grid-template-columns: repeat(2, 1fr);
  }
  #products > ul,
  #solutions > ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }
  .top-bar {
    display: none;
  }
  nav[role="navigation"] {
    flex-wrap: wrap;
    padding: 0.6rem 1rem;
  }
  nav[role="navigation"] .logo a {
    font-size: 1.2rem;
  }
  nav[role="navigation"] > ul {
    display: none;
  }
  nav[role="navigation"] form[role="search"] {
    flex: 1;
    min-width: 0;
  }
  nav[role="navigation"] form[role="search"] input[type="search"] {
    width: 100%;
    flex: 1;
    min-width: 0;
  }
  nav[role="navigation"] form[role="search"] input[type="search"]:focus {
    width: 100%;
  }
  nav[role="navigation"] form[role="search"] button {
    padding: 0.5rem 0.8rem;
  }
  nav[role="navigation"] > button[type="button"] {
    padding: 0.5rem 0.7rem;
    font-size: 0.8rem;
  }
  nav[role="navigation"] > button[aria-label="切换暗黑模式"] {
    font-size: 0;
    width: 36px;
    height: 36px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  nav[role="navigation"] > button[aria-label="切换暗黑模式"]::before {
    content: "◐";
    font-size: 1.1rem;
  }
  main[role="main"] {
    padding: 1rem;
  }
  main > section:not(#hero) {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-md);
  }
  #hero {
    padding: 1.75rem 1.25rem;
    border-radius: var(--radius-lg);
  }
  #hero > ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
  }
  #hero > ul li {
    padding: 0.75rem 0.5rem;
  }
  #hero > ul li strong {
    font-size: 1.3rem;
  }
  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.25rem;
  }
  h3 {
    font-size: 1.05rem;
  }
  #news article,
  #articles article {
    padding: 1.1rem;
  }
  #faq details summary {
    padding: 0.9rem 2.75rem 0.9rem 1rem;
    font-size: 0.92rem;
  }
  #contact > ul {
    grid-template-columns: 1fr;
  }
  #sitemap > ul,
  #links > ul {
    grid-template-columns: repeat(2, 1fr);
  }
  footer[role="contentinfo"] {
    padding: 2rem 1rem 1.5rem;
  }
  footer[role="contentinfo"] nav[aria-label="页脚导航"] ul {
    gap: 0.5rem 1rem;
  }
  button[aria-label="返回顶部"] {
    right: 1rem;
    bottom: 1rem;
    width: 42px;
    height: 42px;
  }
  blockquote {
    padding: 1rem 1.1rem;
  }
}

@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[role="banner"],
  button[aria-label="返回顶部"],
  nav[role="navigation"] form[role="search"] {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
  main > section:not(#hero) {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
  #hero {
    background: #f5f5f5;
    color: #000;
  }
  #hero h1,
  #hero > p,
  #hero .banner article h2,
  #hero .banner article p,
  #hero > ul li,
  #hero > ul li strong {
    color: #000;
    -webkit-text-fill-color: #000;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
}