:root {
  --primary-color: #7C3AED;
  --secondary-color: #4C1D95;
  --text-color: #1F2937;
  --light-text: #6B7280;
  --background: #F9FAFB;
  --glass-bg: rgba(255, 255, 255, 0.8);
  --accent: #EDE9FE;
  --gradient-1: #8B5CF6;
  --gradient-2: #EC4899;
  --bg-primary: var(--background);
  --text-primary: var(--text-color);
  --bg-secondary: var(--accent);
  --card-bg: rgba(255, 255, 255, 0.9);
  --card-border: rgba(255, 255, 255, 0.4);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.theme-toggle,
.lang-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.3s ease;
}

.theme-toggle:hover,
.lang-toggle:hover {
  opacity: 0.8;
}

.theme-toggle svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.moon-icon {
  display: none;
}

[data-theme="dark"] .sun-icon {
  display: none;
}

[data-theme="dark"] .moon-icon {
  display: block;
}

.lang-toggle {
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--text-primary);
}

.divider {
  margin: 0 0.25rem;
  opacity: 0.5;
}

.logo-text {
  fill: var(--primary-color);
  font-size: 28px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: linear-gradient(90deg, var(--gradient-1), var(--gradient-2));
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  margin-top: 60px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 600px;
  z-index: 1;
}

.hero h1 {
  font-size: 5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--primary-color), var(--gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.5rem;
  color: var(--text-primary);
  opacity: 0.8;
  margin-bottom: 2.5rem;
}

.cta-button {
  display: inline-block;
  padding: 1.25rem 3rem;
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  color: white;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1.25rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* Products Section */
.products {
  padding: 8rem 2rem;
  background: var(--bg-primary);
}

.products h2 {
  text-align: center;
  margin-bottom: 4rem;
  font-size: 2.5rem;
  background: linear-gradient(90deg, var(--primary-color), var(--gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.product-card {
  padding: 2.5rem;
  border-radius: 24px;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.1);
  border-color: var(--primary-color);
}

.icon {
  width: 60px;
  height: 60px;
  margin-bottom: 1.5rem;
  animation: float 6s ease-in-out infinite;
}

.icon-circle, .icon-rect, .icon-triangle {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 2;
}

.product-card:nth-child(2) .icon {
  animation-delay: -2s;
}

.product-card:nth-child(3) .icon {
  animation-delay: -4s;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

/* About Section */
.about {
  padding: 8rem 2rem;
  background: linear-gradient(135deg, var(--accent), #fff);
}

.about-content {
  max-width: 1200px;
  margin: 0 auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(255,255,255,0.7));
  border: none;
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.1);
  border-radius: 20px;
}

.stat-item h3 {
  font-size: 4.5rem;
  background: linear-gradient(90deg, var(--primary-color), var(--gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.5rem;
  font-weight: 800;
}

/* Ideas Section */
.ideas {
  padding: 8rem 2rem;
  background: linear-gradient(135deg, #fff, var(--accent));
}

.ideas h2 {
  text-align: center;
  margin-bottom: 4rem;
  font-size: 2.5rem;
  background: linear-gradient(90deg, var(--primary-color), var(--gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.idea-card {
  padding: 2.5rem;
  border-radius: 24px;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.idea-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.1);
  border-color: var(--primary-color);
}

.idea-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 1.5rem;
}

.idea-pulse {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 2;
  animation: pulse 3s infinite;
}

.idea-spark {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 2;
  stroke-linecap: round;
  animation: spark 2s infinite;
}

.idea-wave {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 2;
  animation: wave 3s infinite ease-in-out;
}

.idea-cube {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 2;
  animation: rotate 4s infinite linear;
}

.idea-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.idea-tags span {
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  color: white;
  border-radius: 999px;
  font-size: 0.875rem;
}

@keyframes spark {
  0% { stroke-dasharray: 0,30; stroke-dashoffset: 0; }
  50% { stroke-dasharray: 30,30; stroke-dashoffset: -30; }
  100% { stroke-dasharray: 0,30; stroke-dashoffset: -60; }
}

@keyframes wave {
  0% { transform: translateX(0); }
  50% { transform: translateX(-10px); }
  100% { transform: translateX(0); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Contact Form Updates */
.contact {
  padding: 8rem 2rem;
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

input, textarea {
  padding: 1.2rem;
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background: var(--glass-bg);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.submit-button {
  padding: 1.2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--gradient-2));
  color: white;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

/* Footer Updates */
footer {
  background: linear-gradient(135deg, #1F2937, #111827);
  color: white;
  padding: 6rem 2rem 2rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4rem;
}

.footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
  background: linear-gradient(90deg, var(--primary-color), var(--gradient-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer-section p, 
.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  line-height: 1.8;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  text-decoration: none;
  display: inline-block;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background: linear-gradient(90deg, var(--gradient-1), var(--gradient-2));
  transition: width 0.3s ease;
}

.footer-links a:hover::after {
  width: 100%;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  opacity: 0.8;
}

.social-icon:hover {
  opacity: 1;
  transform: translateY(-3px) rotate(8deg);
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: white;
}

.copyright {
  text-align: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

@media (max-width: 640px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* Animations */
.tech-background {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 60%;
  height: 60%;
  opacity: 0.1;
}

.pulse {
  stroke: url(#gradient);
  animation: pulse 3s infinite;
}

.circuit-line {
  stroke: url(#gradient);
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: draw 4s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.2;
  }
  100% {
    transform: scale(1);
    opacity: 0.5;
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

/* Responsive Updates */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .product-card {
    padding: 2rem;
  }
  
  .stat-item h3 {
    font-size: 2.5rem;
  }
}

[data-theme="dark"] {
  /* 基础色值 */
  --bg-primary: #121212;
  --text-primary: #e5e7eb;
  --bg-secondary: #1e1e24;
  --card-bg: rgba(30, 30, 35, 0.9);
  --card-border: rgba(75, 75, 75, 0.4);
  --background: #0a0a0c;
  --glass-bg: rgba(18, 18, 20, 0.8);
  --accent: #2d2d3a;
  --primary-color: #9d5cf6;
  --secondary-color: #6d3fc5;
  --light-text: #9ca3af;
  
  /* 渐变色调整 */
  --gradient-1: #8b5cf6;
  --gradient-2: #d946ef;
}

[data-theme="dark"] .hero {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
}

[data-theme="dark"] .products {
  background: var(--bg-primary);
}

[data-theme="dark"] .about {
  background: linear-gradient(135deg, var(--bg-secondary), var(--background));
}

[data-theme="dark"] .ideas {
  background: linear-gradient(135deg, var(--background), var(--bg-secondary));
}

[data-theme="dark"] .product-card,
[data-theme="dark"] .idea-card {
  background: var(--card-bg);
  border-color: var(--card-border);
}

[data-theme="dark"] .product-card:hover,
[data-theme="dark"] .idea-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: var(--primary-color);
}

[data-theme="dark"] .stat-item {
  background: linear-gradient(135deg, rgba(30, 30, 35, 0.9), rgba(25, 25, 30, 0.7));
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] input,
[data-theme="dark"] textarea {
  background: var(--bg-secondary);
  border-color: rgba(124, 58, 237, 0.2);
  color: var(--text-primary);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

[data-theme="dark"] .nav-links a {
  color: var(--text-primary);
}

[data-theme="dark"] .lang-toggle {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .tech-background {
  opacity: 0.05;
}

[data-theme="dark"] .footer-section p,
[data-theme="dark"] .footer-section a {
  color: rgba(255, 255, 255, 0.6);
}

[data-theme="dark"] footer {
  background: linear-gradient(135deg, #0a0a0c, #1a1a1f);
}

[data-theme="dark"] .product-card p,
[data-theme="dark"] .idea-card p {
  color: var(--light-text);
}

[data-theme="dark"] .error-page {
  background: linear-gradient(135deg, var(--bg-secondary), var(--background));
}

[data-theme="dark"] .glitch-effect {
  background: linear-gradient(45deg, 
    rgba(139, 92, 246, 0.1) 25%, 
    rgba(217, 70, 239, 0.1) 75%
  );
}