:root {
  --primary: #e94560;
  --primary-dark: #c73650;
  --primary-light: #ff6b81;
  --secondary: #0f3460;
  --secondary-light: #1a4a7a;
  --accent: #533483;
  --bg-dark: #1a1a2e;
  --bg-darker: #0f0f1a;
  --bg-card: #16213e;
  --bg-card-hover: #1c2a4a;
  --text-primary: #ffffff;
  --text-secondary: #b8c1d6;
  --text-muted: #7a8599;
  --border-color: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(22, 33, 62, 0.65);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(233, 69, 96, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --max-width: 1200px;
  --header-height: 72px;
}

[data-theme="light"] {
  --bg-dark: #f5f7fa;
  --bg-darker: #eef1f6;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f9fc;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #8896ab;
  --border-color: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(0, 0, 0, 0.06);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(233, 69, 96, 0.15);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(233, 69, 96, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(15, 52, 96, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(83, 52, 131, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

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

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

a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

ul,
ol {
  list-style: none;
}

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

button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

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

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

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

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

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

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

#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

#site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(15, 15, 26, 0.85);
}

[data-theme="light"] #site-header.scrolled {
  background: rgba(255, 255, 255, 0.88);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.03);
}

.logo svg {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav[role="navigation"] {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.nav-list li a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
  transition: width var(--transition-base), left var(--transition-base);
}

.nav-list li a:hover,
.nav-list li a[aria-current="page"] {
  color: var(--text-primary);
  background: rgba(233, 69, 96, 0.08);
}

.nav-list li a:hover::after,
.nav-list li a[aria-current="page"]::after {
  width: 60%;
  left: 20%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-actions form[role="search"] {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  height: 40px;
}

.header-actions form[role="search"]:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
  background: rgba(255, 255, 255, 0.1);
}

.header-actions input[type="search"] {
  width: 160px;
  padding: 0 14px;
  height: 100%;
  background: transparent;
  border: none;
  outline: none;
  font-size: 0.85rem;
  color: var(--text-primary);
  transition: width var(--transition-base);
}

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

.header-actions input[type="search"]:focus {
  width: 200px;
}

.header-actions button[type="submit"] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 100%;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.header-actions button[type="submit"]:hover {
  color: var(--primary);
  background: rgba(233, 69, 96, 0.1);
}

#theme-toggle,
#menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

#theme-toggle:hover,
#menu-toggle:hover {
  color: var(--primary);
  background: rgba(233, 69, 96, 0.12);
  border-color: rgba(233, 69, 96, 0.3);
  transform: translateY(-2px);
}

#menu-toggle {
  display: none;
}

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

section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}

section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 32px;
  position: relative;
  padding-bottom: 16px;
  letter-spacing: -0.5px;
}

section h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
}

section h3 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

section h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 12px;
  color: var(--primary-light);
}

section p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

section ul,
section ol {
  padding-left: 0;
  margin-bottom: 20px;
}

section ul li,
section ol li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text-secondary);
  line-height: 1.8;
}

section ul li::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(233, 69, 96, 0.5);
}

section ol {
  counter-reset: ol-counter;
}

section ol li {
  counter-increment: ol-counter;
}

section ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 4px;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
}

section strong {
  color: var(--text-primary);
  font-weight: 600;
}

#hero {
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + 60px) 24px 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 30%, #0f3460 60%, #1a1a2e 100%);
  background-size: 400% 400%;
  animation: heroGradient 15s ease infinite;
}

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

#hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 40%, rgba(233, 69, 96, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(15, 52, 96, 0.3) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(83, 52, 131, 0.12) 0%, transparent 35%);
  animation: heroFloat 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(2%, -2%) rotate(1deg); }
  66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

#hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg-dark), transparent);
  pointer-events: none;
}

.hero-content {
  max-width: 800px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 40%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: heroTitleIn 1s ease-out;
}

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

.hero-lead {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.75) !important;
  line-height: 1.9;
  margin-bottom: 40px;
  animation: heroTitleIn 1s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
  animation: heroTitleIn 1s ease-out 0.4s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  white-space: nowrap;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.6s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.55);
  color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(233, 69, 96, 0.15);
  transform: translateY(-3px);
  color: #ffffff;
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.25);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  animation: heroTitleIn 1s ease-out 0.6s both;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px 12px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(233, 69, 96, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.2);
}

.stat-number {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 500;
  letter-spacing: 0.5px;
}

#banner-carousel {
  padding-top: 0;
}

#banner-carousel h2 {
  text-align: center;
}

#banner-carousel h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
}

.carousel-track {
  position: relative;
  width: 100%;
  aspect-ratio: 800 / 300;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease, visibility 0.6s ease, transform 0.6s ease;
  transform: scale(1.05);
}

.carousel-slide.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  z-index: 2;
}

.carousel-slide svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-prev,
.carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-base);
  opacity: 0;
}

.carousel:hover .carousel-prev,
.carousel:hover .carousel-next {
  opacity: 1;
}

.carousel-prev {
  left: 16px;
}

.carousel-next {
  right: 16px;
}

.carousel-prev:hover,
.carousel-next:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 0 25px rgba(233, 69, 96, 0.5);
}

.carousel-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  border: none;
  transition: all var(--transition-base);
  cursor: pointer;
}

.dot.active {
  width: 28px;
  border-radius: 5px;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(233, 69, 96, 0.6);
}

.dot:hover {
  background: rgba(255, 255, 255, 0.6);
}

.dot.active:hover {
  background: var(--primary);
}

nav[aria-label="面包屑导航"] {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--text-muted);
  opacity: 0.5;
}

.breadcrumb li a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb li a:hover {
  color: var(--primary);
}

.breadcrumb li[aria-current="page"] {
  color: var(--text-secondary);
}

#about {
  background: transparent;
}

#about ul li {
  padding: 12px 16px 12px 36px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

#about ul li::before {
  left: 16px;
  top: 20px;
}

#about ul li:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateX(6px);
}

#products {
  background: linear-gradient(180deg, transparent 0%, rgba(15, 52, 96, 0.08) 50%, transparent 100%);
}

#products h4 {
  padding-left: 16px;
  border-left: 3px solid var(--primary);
}

#products ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

#products ul li {
  padding: 20px 20px 20px 44px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

#products ul li::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 26px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(233, 69, 96, 0.6);
}

#products ul li::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity var(--transition-base);
}

#products ul li:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

#products ul li:hover::after {
  opacity: 1;
}

#solutions {
  background: transparent;
}

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

#solutions ul li {
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
}

#solutions ul li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 0 0 3px 3px;
  transition: width var(--transition-base);
}

#solutions ul li:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

#solutions ul li:hover::before {
  width: 60px;
}

#cases {
  background: linear-gradient(180deg, transparent 0%, rgba(83, 52, 131, 0.06) 50%, transparent 100%);
}

#cases blockquote {
  position: relative;
  padding: 20px 24px 20px 48px;
  margin-bottom: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

#cases blockquote::before {
  content: "\201C";
  position: absolute;
  left: 16px;
  top: 8px;
  font-size: 2.5rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.5;
  font-family: Georgia, serif;
}

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

#cases blockquote:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

#news {
  background: transparent;
}

#news article {
  padding: 28px;
  margin-bottom: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

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

#news article:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

#news article:hover::before {
  opacity: 1;
}

#news article h3 {
  margin-top: 0;
  font-size: 1.2rem;
  transition: color var(--transition-fast);
}

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

#news article time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding: 4px 12px;
  background: rgba(233, 69, 96, 0.1);
  border-radius: var(--radius-xl);
  font-weight: 500;
}

#articles {
  background: linear-gradient(180deg, transparent 0%, rgba(15, 52, 96, 0.06) 50%, transparent 100%);
}

#articles article {
  padding: 28px;
  margin-bottom: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
}

#articles article:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

#articles article h3 {
  margin-top: 0;
  font-size: 1.2rem;
  transition: color var(--transition-fast);
}

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

#articles article time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding: 4px 12px;
  background: rgba(83, 52, 131, 0.15);
  border-radius: var(--radius-xl);
  font-weight: 500;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 8px;
  transition: all var(--transition-fast);
}

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

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

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

#howto {
  background: transparent;
}

#howto ol {
  counter-reset: howto-counter;
}

#howto ol li {
  counter-increment: howto-counter;
  padding: 16px 20px 16px 52px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 12px;
  transition: all var(--transition-base);
}

#howto ol li::before {
  content: counter(howto-counter);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(233, 69, 96, 0.4);
}

#howto ol li:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

#howto ul li {
  padding: 12px 16px 12px 36px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 10px;
  transition: all var(--transition-base);
}

#howto ul li::before {
  left: 16px;
  top: 20px;
}

#howto ul li:hover {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.15);
  transform: translateX(4px);
}

#faq {
  background: linear-gradient(180deg, transparent 0%, rgba(83, 52, 131, 0.06) 50%, transparent 100%);
}

#faq details {
  margin-bottom: 12px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-base);
}

#faq details:hover {
  border-color: rgba(233, 69, 96, 0.25);
  box-shadow: var(--shadow-sm);
}

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

#faq summary {
  padding: 20px 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;
  transition: color 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: 1.2rem;
  font-weight: 400;
  color: var(--primary);
  background: rgba(233, 69, 96, 0.1);
  border-radius: 50%;
  transition: all var(--transition-base);
}

#faq details[open] summary::after {
  content: "\2212";
  background: var(--primary);
  color: #ffffff;
  transform: rotate(180deg);
}

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

#faq details p {
  padding: 0 24px 24px;
  margin-bottom: 0;
  color: var(--text-secondary);
  line-height: 1.8;
  animation: faqSlideIn 0.3s ease;
}

@keyframes faqSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

#contact {
  background: transparent;
}

#contact form[aria-label="在线反馈表单"] {
  max-width: 600px;
  padding: 32px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

#contact form[aria-label="在线反馈表单"]:hover {
  border-color: rgba(233, 69, 96, 0.2);
  box-shadow: var(--shadow-lg);
}

#contact label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  margin-top: 20px;
}

#contact label:first-of-type {
  margin-top: 0;
}

#contact input[type="text"],
#contact input[type="email"],
#contact textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-base);
  resize: vertical;
}

#contact input[type="text"]:focus,
#contact input[type="email"]:focus,
#contact textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

#contact input::placeholder,
#contact textarea::placeholder {
  color: var(--text-muted);
}

#contact button[type="submit"] {
  margin-top: 24px;
  padding: 14px 40px;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.35);
  position: relative;
  overflow: hidden;
}

#contact button[type="submit"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

#contact button[type="submit"]:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.5);
}

#contact button[type="submit"]:hover::before {
  left: 100%;
}

#sitemap {
  background: linear-gradient(180deg, transparent 0%, rgba(15, 52, 96, 0.06) 50%, transparent 100%);
}

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

#sitemap ul li {
  padding: 0;
}

#sitemap ul li::before {
  display: none;
}

#sitemap ul li a {
  display: block;
  padding: 12px 18px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

#sitemap ul li a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--primary-light));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-base);
}

#sitemap ul li a:hover {
  color: var(--primary-light);
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.2);
  transform: translateX(4px);
}

#sitemap ul li a:hover::before {
  transform: scaleY(1);
}

#links {
  background: transparent;
}

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

#links ul li {
  padding: 0;
}

#links ul li::before {
  display: none;
}

#links ul li a {
  display: inline-block;
  padding: 10px 22px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition-base);
}

#links ul li a:hover {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(233, 69, 96, 0.35);
}

footer[role="contentinfo"] {
  position: relative;
  z-index: 1;
  background: var(--bg-darker);
  border-top: 1px solid var(--border-color);
  padding: 60px 24px 0;
  margin-top: 40px;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-section h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
}

.footer-section p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 10px;
}

.footer-section ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-section ul li {
  padding: 0;
}

.footer-section ul li::before {
  display: none;
}

.footer-section ul li a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-section ul li a::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-section ul li a:hover::before {
  opacity: 1;
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  line-height: 1.7;
}

.footer-bottom p:last-child {
  margin-bottom: 0;
}

#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

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

#back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.6);
}

#back-to-top:active {
  transform: translateY(-2px) scale(0.98);
}

@media (max-width: 1024px) {
  .header-inner {
    padding: 0 16px;
  }

  .nav-list li a {
    padding: 8px 10px;
    font-size: 0.82rem;
  }

  .header-actions input[type="search"] {
    width: 120px;
  }

  .header-actions input[type="search"]:focus {
    width: 160px;
  }

  section {
    padding: 60px 20px;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .logo svg {
    width: 34px;
    height: 34px;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  nav[role="navigation"] {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-top: 1px solid var(--glass-border);
    padding: 20px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    z-index: 999;
  }

  nav[role="navigation"].open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 4px;
    width: 100%;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-list li a {
    padding: 14px 20px;
    font-size: 1rem;
    border-radius: var(--radius-md);
    width: 100%;
  }

  .nav-list li a::after {
    display: none;
  }

  .header-actions form[role="search"] {
    display: none;
  }

  #menu-toggle {
    display: flex;
  }

  #hero {
    min-height: auto;
    padding: calc(var(--header-height) + 40px) 20px 60px;
  }

  .hero-content h1 {
    font-size: 1.6rem;
  }

  .hero-lead {
    font-size: 0.92rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    padding: 13px 24px;
    font-size: 0.95rem;
  }

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

  .stat-item {
    padding: 16px 8px;
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .stat-label {
    font-size: 0.72rem;
  }

  section {
    padding: 48px 16px;
  }

  section h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
  }

  section h3 {
    font-size: 1.15rem;
    margin-top: 24px;
  }

  section h4 {
    font-size: 1rem;
  }

  section p {
    font-size: 0.92rem;
  }

  section ul li,
  section ol li {
    font-size: 0.92rem;
    padding-left: 24px;
  }

  .carousel-track {
    aspect-ratio: 16 / 9;
  }

  .carousel-prev,
  .carousel-next {
    width: 36px;
    height: 36px;
    font-size: 1rem;
    opacity: 1;
  }

  .carousel-prev {
    left: 8px;
  }

  .carousel-next {
    right: 8px;
  }

  .carousel-dots {
    bottom: 12px;
    gap: 8px;
  }

  .dot {
    width: 8px;
    height: 8px;
  }

  .dot.active {
    width: 22px;
  }

  .breadcrumb {
    font-size: 0.78rem;
    flex-wrap: wrap;
  }

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

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

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

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

  #howto ol li {
    padding: 14px 16px 14px 48px;
    font-size: 0.92rem;
  }

  #faq summary {
    padding: 16px 18px;
    font-size: 0.92rem;
  }

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

  #contact form[aria-label="在线反馈表单"] {
    padding: 24px 20px;
  }

  #sitemap ul {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  #sitemap ul li a {
    padding: 10px 14px;
    font-size: 0.82rem;
  }

  #links ul {
    gap: 8px;
  }

  #links ul li a {
    padding: 8px 16px;
    font-size: 0.82rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 32px;
  }

  footer[role="contentinfo"] {
    padding: 40px 16px 0;
  }

  .footer-bottom {
    padding: 20px 0;
  }

  .footer-bottom p {
    font-size: 0.75rem;
  }

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

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.35rem;
  }

  .hero-lead {
    font-size: 0.85rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .stat-number {
    font-size: 1.2rem;
  }

  .stat-label {
    font-size: 0.68rem;
  }

  section h2 {
    font-size: 1.3rem;
  }

  section h3 {
    font-size: 1.05rem;
  }

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

  .carousel-track {
    aspect-ratio: 4 / 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  section {
    opacity: 1;
    transform: none;
  }

  #hero {
    animation: none;
  }

  #hero::before {
    animation: none;
  }
}

@media print {
  #site-header,
  #back-to-top,
  #banner-carousel,
  #links,
  .hero-actions,
  .header-actions {
    display: none;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  section {
    opacity: 1;
    transform: none;
    page-break-inside: avoid;
  }

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