:root {
  --primary-color: #ffffff;
  --secondary-color: #f5f0ec;
  --text-color: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.8);
  --text-dark: #333333;
  --accent-color: #fde61b;
  --accent-gradient: linear-gradient(135deg, #fde61b 0%, #f69e02 30%, #fa5a03 60%, #bf0505 100%);
  --bg-dark: #1a1a2e;
  --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
}

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

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  background: rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  text-decoration: none;
  outline: none;
  border: none;
}

.logo .logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  outline: none;
  border: none;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-color);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-link {
  color: var(--text-color);
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-link:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-color);
  transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--bg-gradient);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=beautiful%20mountain%20hiking%20trail%20with%20person%20walking%20at%20sunrise%20misty%20landscape%20cinematic&image_size=landscape_16_9') center/cover no-repeat;
  opacity: 0.7;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 900px;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 24px;
  letter-spacing: -2px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 48px;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 40px;
  background: var(--primary-color);
  color: var(--bg-dark);
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
  text-decoration: none;
}

.cta-button:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.3);
}

.cta-button i {
  transition: var(--transition);
}

.cta-button:hover i {
  transform: translateX(5px);
}

/* 诗词按钮样式 */
.poetry-btn {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  box-shadow: none;
}

.poetry-btn:hover {
  background: var(--primary-color);
  color: var(--bg-dark);
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
}

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

@media (max-width: 992px) {
  .social-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .cta-button {
    padding: 14px 28px;
    font-size: 0.9rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
}