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

:root {
  --primary: #5cb85c;
  --primary-light: #7dd87d;
  --primary-dark: #3a8a3a;
  --secondary: #f0f7f0;
  --accent: #8bc34a;
  --text: #333;
  --text-light: #666;
  --text-muted: #999;
  --bg: #ffffff;
  --bg-light: #f8faf8;
  --border: #e8e8e8;
  --shadow: 0 2px 12px rgba(92, 184, 92, 0.1);
  --shadow-hover: 0 4px 20px rgba(92, 184, 92, 0.2);
  --radius: 8px;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--bg);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

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

.nav a {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.nav a:hover,
.nav a.active {
  background: var(--secondary);
  color: var(--primary);
}

.header-btn {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.header-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(92, 184, 92, 0.3);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(180deg, var(--secondary) 0%, var(--bg) 100%);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-content h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .subtitle {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 16px;
}

.hero-price {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: 20px 32px;
  border-radius: 16px;
  margin-bottom: 24px;
}

.hero-price .label {
  font-size: 14px;
  opacity: 0.9;
}

.hero-price .price {
  font-size: 36px;
  font-weight: 700;
}

.hero-price .unit {
  font-size: 14px;
  opacity: 0.9;
}

.hero-desc {
  color: var(--text-light);
  margin-bottom: 32px;
}

.hero-features {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
}

.hero-features span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-light);
}

.hero-features .dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.btn-group {
  display: flex;
  gap: 16px;
}

.btn-primary {
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(92, 184, 92, 0.3);
}

.btn-secondary {
  padding: 14px 32px;
  background: white;
  color: var(--primary);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--secondary);
}

.hero-visual {
  position: relative;
}

.hero-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
  border-radius: 24px;
  overflow: hidden;
  position: relative;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow);
}

/* Section */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Grid */
.features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--secondary), #e8f5e9);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-light);
  font-size: 14px;
}

/* Products Grid */
.tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.tab {
  padding: 8px 20px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.product-image {
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f5f5f5, #e8e8e8);
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info {
  padding: 16px;
}

.product-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.product-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.product-author {
  color: var(--text-muted);
}

.product-tag {
  background: var(--secondary);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
}

/* Token Section */
.token-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: white;
}

.token-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.token-content h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.token-content p {
  opacity: 0.9;
  margin-bottom: 32px;
}

.token-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.token-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

.token-feature-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.token-visual {
  display: flex;
  justify-content: center;
}

.token-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  width: 100%;
  max-width: 340px;
}

.token-balance {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 8px;
}

.token-label {
  opacity: 0.8;
  margin-bottom: 24px;
}

.token-actions {
  display: flex;
  gap: 12px;
}

.token-btn {
  flex: 1;
  padding: 12px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  color: white;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.token-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
  background: #1a1a1a;
  color: #999;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: white;
  font-size: 20px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.footer-social a:hover {
  background: var(--primary);
}

.footer-column h4 {
  color: white;
  font-size: 16px;
  margin-bottom: 20px;
}

.footer-column ul li {
  margin-bottom: 12px;
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
}

/* Page Banner */
.page-banner {
  padding: 120px 0 60px;
  background: linear-gradient(180deg, var(--secondary) 0%, var(--bg) 100%);
  text-align: center;
}

.page-banner h1 {
  font-size: 40px;
  margin-bottom: 12px;
}

.page-banner p {
  color: var(--text-light);
  font-size: 16px;
}

/* About Page */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
  border-radius: 20px;
  overflow: hidden;
}

.about-content h2 {
  font-size: 32px;
  margin-bottom: 20px;
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.mission-card {
  text-align: center;
  padding: 32px;
  background: var(--bg-light);
  border-radius: var(--radius);
}

.mission-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 16px;
}

.mission-card h3 {
  margin-bottom: 8px;
}

.mission-card p {
  color: var(--text-light);
  font-size: 14px;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-light);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--primary);
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--primary-light);
}

.timeline-year {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.timeline-item h3 {
  margin-bottom: 8px;
}

.timeline-item p {
  color: var(--text-light);
}

/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
}

.contact-info-card {
  background: var(--bg-light);
  padding: 32px;
  border-radius: var(--radius);
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 4px;
}

.contact-item p {
  color: var(--text-light);
  font-size: 14px;
}

.contact-form {
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(92, 184, 92, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner,
  .about-hero,
  .token-inner,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-image {
    max-width: 500px;
    margin: 0 auto;
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    width: 100%;
    text-align: center;
  }

  .menu-toggle {
    display: block;
  }

  .header-btn {
    display: none;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-features {
    flex-direction: column;
    gap: 12px;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid,
  .mission-grid {
    grid-template-columns: 1fr;
  }

  .token-features {
    grid-template-columns: 1fr;
  }

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

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .page-banner {
    padding: 100px 0 40px;
  }

  .page-banner h1 {
    font-size: 28px;
  }

  .contact-form {
    padding: 24px;
  }
}