:root {
  --bg-color: #000000;
  --text-primary: #ffffff;
  --text-secondary: #bdb7c0;
  --accent-purple: #af26ee;
  --accent-blue: #3188f3;
  --card-bg: rgba(255, 255, 255, 0.05);
  --border-color: #27272a;
  --gradient-primary: linear-gradient(to right, #af26ee, #3188f3);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: "PingFang SC", "Inter", -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  height: 80px;
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo img {
  height: 40px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a:hover {
  color: var(--accent-blue);
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 160px 0 80px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero-content {
  flex: 1;
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.hero-image img {
  max-width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

h1 {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}

h1 .thin {
  font-weight: 300;
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
}

/* Platform Grid */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 15px;
}

.platform-btn {
  background: #ffffff;
  color: #000000;
  padding: 15px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
}

.platform-btn:hover {
  background: var(--gradient-primary);
  color: #ffffff;
}

.platform-btn svg {
  width: 32px;
  height: 32px;
}

/* Features */
.features {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 40px;
  margin-bottom: 10px;
}

.section-title p {
  color: var(--text-secondary);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 30px;
  border-radius: 20px;
  transition: border-color 0.3s;
}

.feature-card:hover {
  border-color: var(--accent-blue);
}

.feature-icon {
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* Footer */
footer {
  padding: 60px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-secondary);
}

/* SEO Content Section */
.seo-content {
  padding: 80px 0;
  background: #050505;
}

.seo-text {
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-secondary);
}

.seo-text h2 {
  color: #fff;
  margin-bottom: 20px;
}

.seo-text p {
  margin-bottom: 20px;
}

/* Mobile Responsive */
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
  }
  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .hero-image {
    justify-content: center;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 40px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}