:root {
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --primary-dark: #4834d4;
  --accent: #fd79a8;
  --accent-light: #ff9ff3;
  --bg: #f0f2f8;
  --bg-alt: #e8ebf4;
  --card: rgba(255, 255, 255, 0.72);
  --card-solid: #ffffff;
  --card-border: rgba(255, 255, 255, 0.6);
  --text: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #7a7a9a;
  --shadow: 0 8px 32px rgba(108, 92, 231, 0.12);
  --shadow-lg: 0 16px 48px rgba(108, 92, 231, 0.18);
  --shadow-hover: 0 20px 56px rgba(108, 92, 231, 0.26);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --glass-blur: 18px;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --header-bg: rgba(240, 242, 248, 0.78);
  --gradient-hero: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 30%, #fd79a8 70%, #ff9ff3 100%);
  --gradient-card: linear-gradient(135deg, rgba(108, 92, 231, 0.08), rgba(253, 121, 168, 0.06));
  --gradient-btn: linear-gradient(135deg, #6c5ce7, #fd79a8);
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --primary: #a29bfe;
  --primary-light: #c8c3ff;
  --primary-dark: #6c5ce7;
  --accent: #fd79a8;
  --accent-light: #ff9ff3;
  --bg: #0f0f1a;
  --bg-alt: #16162a;
  --card: rgba(30, 30, 55, 0.72);
  --card-solid: #1a1a2e;
  --card-border: rgba(108, 92, 231, 0.18);
  --text: #e8e8f0;
  --text-secondary: #b0b0cc;
  --text-muted: #7a7a9a;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 20px 56px rgba(108, 92, 231, 0.3);
  --glass-bg: rgba(30, 30, 55, 0.55);
  --header-bg: rgba(15, 15, 26, 0.82);
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #2d1b69 30%, #6c5ce7 60%, #fd79a8 100%);
  --gradient-card: linear-gradient(135deg, rgba(108, 92, 231, 0.12), rgba(253, 121, 168, 0.08));
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

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

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 20% 30%, rgba(108, 92, 231, 0.06) 0%, transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(253, 121, 168, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

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(--accent);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 4px;
}

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

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

#site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
  white-space: nowrap;
  transition: transform var(--transition), filter var(--transition);
  flex-shrink: 0;
}

.logo:hover {
  transform: scale(1.05);
  filter: brightness(1.15);
}

#main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

#main-nav ul {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

#main-nav ul li a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

#main-nav ul li a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--gradient-btn);
  border-radius: 2px;
  transition: transform var(--transition);
}

#main-nav ul li a:hover {
  color: var(--primary);
  background: rgba(108, 92, 231, 0.08);
}

#main-nav ul li a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

#menu-toggle,
#theme-toggle {
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

#menu-toggle:hover,
#theme-toggle:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
}

#menu-toggle {
  display: none;
}

#site-search {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

#site-search input {
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--card-border);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  width: 180px;
  transition: all var(--transition);
  outline: none;
  font-size: 0.85rem;
}

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

#site-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
  width: 220px;
  background: var(--card-solid);
}

#site-search button {
  padding: 8px 16px;
  border-radius: var(--radius-xs);
  background: var(--gradient-btn);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  transition: all var(--transition);
  white-space: nowrap;
}

#site-search button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.35);
  filter: brightness(1.1);
}

main {
  position: relative;
  z-index: 1;
}

main > nav[aria-label="面包屑导航"] {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px 0;
}

main > nav[aria-label="面包屑导航"] ol {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

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

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

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

section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px;
}

section h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
  letter-spacing: 0.5px;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-btn);
  border-radius: 2px;
  opacity: 0.6;
}

section h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--text);
  position: relative;
  padding-left: 16px;
}

section h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 18px;
  background: var(--gradient-btn);
  border-radius: 2px;
}

section p {
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.85;
  font-size: 0.95rem;
}

#hero {
  padding-top: 32px;
  position: relative;
}

#hero h1 {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 1px;
  animation: fadeInUp 0.8s ease both;
}

#hero > p {
  font-size: 1.05rem;
  max-width: 900px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  animation: fadeInUp 0.8s 0.1s ease both;
}

#banner-carousel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s 0.2s ease both;
}

#banner-carousel .slide {
  background: var(--gradient-hero);
  border-radius: var(--radius);
  padding: 32px 28px;
  color: #fff;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: default;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#banner-carousel .slide::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -40%;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  transition: transform 0.6s ease;
}

#banner-carousel .slide::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -30%;
  width: 180px;
  height: 180px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transition: transform 0.6s ease;
}

#banner-carousel .slide:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-hover);
}

#banner-carousel .slide:hover::before {
  transform: scale(1.4) translate(-10px, 10px);
}

#banner-carousel .slide:hover::after {
  transform: scale(1.3) translate(10px, -10px);
}

#banner-carousel .slide:nth-child(2) {
  background: linear-gradient(135deg, #fd79a8 0%, #e84393 40%, #6c5ce7 100%);
}

#banner-carousel .slide:nth-child(3) {
  background: linear-gradient(135deg, #00cec9 0%, #0984e3 50%, #6c5ce7 100%);
}

#banner-carousel .slide h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
  -webkit-text-fill-color: #fff;
  background: none;
  letter-spacing: 0.5px;
}

#banner-carousel .slide h2::after {
  display: none;
}

#banner-carousel .slide p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

#stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  animation: fadeInUp 0.8s 0.3s ease both;
}

#stats > div {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

#stats > div::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-btn);
  transform: scaleX(0);
  transition: transform var(--transition);
}

#stats > div:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

#stats > div:hover::before {
  transform: scaleX(1);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-btn);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
  letter-spacing: 1px;
}

#stats > div > span:last-child {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

#about,
#products,
#services,
#scenarios,
#solutions,
#applications,
#cases,
#testimonials,
#news,
#articles,
#industry,
#faq,
#howto,
#contact,
#sitemap,
#links,
#legal {
  animation: fadeInUp 0.7s ease both;
}

#about {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#products {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#services {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#scenarios {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#solutions {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#applications {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#cases {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#testimonials {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#testimonials p {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  margin-bottom: 12px;
  font-style: italic;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

#testimonials p:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
}

#news {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#news h3 {
  margin-top: 28px;
}

#news h3:first-of-type {
  margin-top: 0;
}

#news h3 + p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

#articles {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#articles article {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-bottom: 16px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

#articles article::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-btn);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

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

#articles article h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

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

#articles article p:first-of-type {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

#articles article p:nth-of-type(2) {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 8px 18px;
  border-radius: var(--radius-xs);
  background: var(--gradient-btn);
  color: #fff;
  transition: all var(--transition);
  margin-top: 6px;
}

#articles article a:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.35);
  color: #fff;
  filter: brightness(1.1);
}

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

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

#industry {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#faq {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

#faq details {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

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

#faq details[open] {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

#faq summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: background var(--transition), color var(--transition);
  color: var(--text);
}

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

#faq summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(108, 92, 231, 0.1);
}

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

#faq summary:hover {
  background: rgba(108, 92, 231, 0.06);
  color: var(--primary);
}

#faq details > p {
  padding: 0 24px 20px;
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.85;
  animation: fadeIn 0.35s ease;
}

#howto {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#howto h2 {
  font-size: 1.6rem;
}

#howto h3 {
  margin-top: 28px;
}

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

#contact {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

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

#contact h3 {
  margin-top: 24px;
}

#sitemap {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#sitemap ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

#sitemap ul li a {
  display: block;
  padding: 10px 16px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xs);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  text-align: center;
}

#sitemap ul li a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
}

#links {
  background: var(--card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  margin-top: 8px;
  margin-bottom: 8px;
}

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

#links ul li a {
  display: inline-block;
  padding: 10px 22px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xs);
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

#links ul li a:hover {
  background: var(--gradient-btn);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3);
}

#legal {
  background: var(--gradient-card);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  margin-top: 8px;
  margin-bottom: 8px;
}

#legal h2 {
  font-size: 1.3rem;
  margin-top: 28px;
}

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

#legal h2::after {
  height: 3px;
}

#legal p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

footer {
  background: var(--card-solid);
  border-top: 1px solid var(--card-border);
  padding: 40px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1280px;
  margin: 48px auto 0;
  border-radius: var(--radius) var(--radius) 0 0;
  position: relative;
  z-index: 1;
}

footer > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}

footer p:first-child {
  font-weight: 700;
  color: var(--text);
  font-size: 0.95rem;
}

#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-btn);
  color: #fff;
  font-size: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 28px rgba(108, 92, 231, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all var(--transition);
  z-index: 999;
}

#back-to-top::after {
  content: '↑';
  font-size: 1.2rem;
  font-weight: 700;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 12px 36px rgba(108, 92, 231, 0.55);
  filter: brightness(1.1);
}

@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(-10px);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .header-inner {
    padding: 10px 16px;
    gap: 10px;
  }

  #main-nav ul li a {
    padding: 6px 10px;
    font-size: 0.82rem;
  }

  #site-search input {
    width: 140px;
  }

  #site-search input:focus {
    width: 170px;
  }

  section {
    padding: 40px 16px;
  }

  #hero h1 {
    font-size: 2rem;
  }

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

  #banner-carousel .slide:last-child {
    grid-column: span 2;
  }

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

  footer {
    padding: 32px 16px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 10px 12px;
  }

  .logo {
    font-size: 1.3rem;
  }

  #main-nav {
    display: none;
    width: 100%;
    order: 10;
  }

  #main-nav.open {
    display: block;
    animation: fadeIn 0.3s ease;
  }

  #main-nav ul {
    flex-direction: column;
    gap: 2px;
    padding: 8px 0;
  }

  #main-nav ul li a {
    padding: 10px 16px;
    font-size: 0.9rem;
    border-radius: var(--radius-xs);
  }

  #menu-toggle {
    display: block;
  }

  #site-search {
    order: 11;
    width: 100%;
    margin-top: 4px;
  }

  #site-search input {
    flex: 1;
    width: auto;
  }

  #site-search input:focus {
    width: auto;
  }

  section {
    padding: 32px 12px;
  }

  section h2 {
    font-size: 1.4rem;
  }

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

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

  #banner-carousel {
    grid-template-columns: 1fr;
  }

  #banner-carousel .slide:last-child {
    grid-column: span 1;
  }

  #banner-carousel .slide {
    padding: 24px 20px;
    min-height: 160px;
  }

  #banner-carousel .slide h2 {
    font-size: 1rem;
  }

  #banner-carousel .slide p {
    font-size: 0.82rem;
  }

  #stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  #stats > div {
    padding: 20px 14px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 28px 12px;
  }

  #back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }

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

  #articles article {
    padding: 18px;
  }

  #faq summary {
    padding: 14px 18px;
    font-size: 0.88rem;
  }

  #faq details > p {
    padding: 0 18px 16px;
    font-size: 0.85rem;
  }

  #howto h2 {
    font-size: 1.3rem;
  }

  #legal h2 {
    font-size: 1.1rem;
  }

  #testimonials p {
    padding: 14px 16px;
    font-size: 0.88rem;
  }
}

@media (max-width: 400px) {
  #stats {
    grid-template-columns: 1fr;
  }

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

  #hero h1 {
    font-size: 1.3rem;
  }
}

@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 {
  #site-header,
  #back-to-top,
  #menu-toggle,
  #theme-toggle,
  #site-search {
    display: none !important;
  }

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

  section {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}