/* 现代化毛玻璃主题样式 */
:root {
  /* 主要颜色变量 */
  --primary-bg: rgba(255, 255, 255, 0.9);
  --secondary-bg: rgba(255, 255, 255, 0.7);
  --accent-blue: #2563eb;
  --accent-blue-light: #3b82f6;
  --accent-blue-dark: #1d4ed8;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border-color: rgba(229, 231, 235, 0.5);
  --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --backdrop-blur: blur(12px);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --transition-default: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* 基础重置和全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #cffafe 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 毛玻璃容器基础类 */
.glass-container {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
}

.glass-container-light {
  background: var(--secondary-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-md);
}

/* 导航栏样式 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-default);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-medium);
  background: rgba(255, 255, 255, 0.95);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo-img {
  height: 40px;
  width: auto;
  transition: var(--transition-default);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-default);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-blue);
  background: rgba(37, 99, 235, 0.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: var(--transition-default);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-default);
}

.mobile-menu-btn:hover {
  background: rgba(0, 0, 0, 0.05);
}

/* 英雄区域样式 */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 1rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 0 3rem;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
  padding: 0 1rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: left;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
  line-height: 1.7;
  text-align: left;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-bounce);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  color: white;
  box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-heavy);
}

.btn-secondary {
  background: var(--primary-bg);
  color: var(--accent-blue);
  border: 2px solid var(--accent-blue);
  backdrop-filter: var(--backdrop-blur);
}

.btn-secondary:hover {
  background: var(--accent-blue);
  color: white;
  transform: translateY(-2px);
}

.hero-image {
  position: relative;
  animation: float 6s ease-in-out infinite;
  padding: 0 1rem;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
  z-index: 1;
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-default);
}

.hero-image-wrapper:hover .hero-img {
  transform: scale(1.05);
}

/* 功能区域样式 */
.features-section {
  padding: 6rem 2rem;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: var(--backdrop-blur);
}

.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-subheading {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  transition: var(--transition-bounce);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
  border-color: rgba(37, 99, 235, 0.3);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light));
  transform: scaleX(0);
  transition: var(--transition-default);
  transform-origin: left;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: var(--accent-blue);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 截图区域样式 */
.screenshots-section {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, rgba(240, 249, 255, 0.8) 0%, rgba(224, 242, 254, 0.6) 100%);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.screenshot-card {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  transition: var(--transition-bounce);
}

.screenshot-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
}

.screenshot-image {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition-default);
}

.screenshot-card:hover .screenshot-image {
  transform: scale(1.03);
}

.screenshot-content {
  padding: 1.5rem;
  text-align: center;
}

.screenshot-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.screenshot-description {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 下载区域样式 */
.download-section {
  padding: 6rem 2rem;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  color: white;
  text-align: center;
}

.download-container {
  max-width: 800px;
  margin: 0 auto;
}

.download-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.download-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  line-height: 1.7;
}

.download-hash {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: var(--border-radius-md);
  font-family: monospace;
  font-size: 0.9rem;
  margin-bottom: 2rem;
  word-break: break-all;
}

.download-button {
  background: white;
  color: var(--accent-blue);
  font-weight: 700;
  padding: 1.25rem 2.5rem;
  border-radius: var(--border-radius-md);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-medium);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
}

.download-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-heavy);
  background: rgba(255, 255, 255, 0.95);
}

.download-features {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 3rem;
}

.download-feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 120px;
}

.download-feature i {
  font-size: 2rem;
}

/* FAQ区域样式 */
.faq-section {
  padding: 6rem 2rem;
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--primary-bg);
  backdrop-filter: var(--backdrop-blur);
  border-radius: var(--border-radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition-default);
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-default);
}

.faq-question:hover {
  background: rgba(37, 99, 235, 0.05);
}

.faq-icon {
  transition: var(--transition-default);
  color: var(--text-secondary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-blue);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: var(--transition-default);
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.5rem;
  max-height: 200px;
}

/* 页脚样式 */
.footer {
  background: rgba(30, 41, 59, 0.95);
  color: white;
  padding: 3rem 2rem;
  backdrop-filter: var(--backdrop-blur);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-logo i {
  font-size: 1.5rem;
  color: var(--accent-blue-light);
}

.footer-logo-text {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-stats {
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: var(--transition-default);
}

.social-link:hover {
  background: var(--accent-blue);
  transform: translateY(-3px);
}

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

/* 动画关键帧 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
    padding: 0 1rem;
  }
  
  .hero-content {
    padding-right: 0;
    padding-left: 0;
  }
  
  .hero-image {
    padding-left: 0;
    padding-right: 0;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .screenshots-grid {
    grid-template-columns: 1fr;
  }
  
  .download-features {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: 5rem 1rem 3rem;
  }
  
  .features-section,
  .screenshots-section,
  .faq-section {
    padding: 4rem 1rem;
  }
  
  .download-section {
    padding: 4rem 1rem;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .feature-card,
  .screenshot-card {
    padding: 1.5rem;
  }
}

/* 加载动画 */
.loading {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-default);
}

.loading.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* 交互动画类 */
.hover-lift {
  transition: var(--transition-default);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

.hover-scale {
  transition: var(--transition-default);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue-dark);
}