/* 现代暗色主题 Modern Dark Theme */
:root {
  /* 主色调 - 深色背景搭配鲜艳色系 */
  --primary-dark: #121212;
  --secondary-dark: #1e1e1e;
  --accent-primary: #bb86fc;
  --accent-secondary: #03dac6;
  --accent-tertiary: #cf6679;
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --gradient-secondary: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
  --gradient-tertiary: linear-gradient(135deg, var(--accent-tertiary), var(--accent-primary));
  
  /* 文字颜色 */
  --text-light: #ffffff;
  --text-light-secondary: #e0e0e0;
  --text-light-tertiary: #a0a0a0;
  --text-dark: #000000;
  
  /* 特效 */
  --glow-primary: 0 0 10px rgba(187, 134, 252, 0.7);
  --glow-secondary: 0 0 10px rgba(3, 218, 198, 0.7);
  --glow-tertiary: 0 0 10px rgba(207, 102, 121, 0.7);
  
  /* 过渡动画 */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.4s ease;
  --transition-slow: all 0.6s ease;
  
  /* 圆角 */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  
  /* 断点 */
  --breakpoint-xs: 480px;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
}

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

body {
  font-family: 'Roboto', 'Segoe UI', Helvetica, Arial, sans-serif;
  background: var(--primary-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 背景动画系统 - 粒子动画背景 */
.animated-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  background: var(--primary-dark);
}

/* 粒子效果 */
.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--accent-primary);
  opacity: 0.7;
  animation: float 15s infinite linear;
}

.particle:nth-child(2n) {
  background: var(--accent-secondary);
  animation-duration: 20s;
}

.particle:nth-child(3n) {
  background: var(--accent-tertiary);
  animation-duration: 25s;
}

.particle:nth-child(4n) {
  background: var(--gradient-primary);
  animation-duration: 18s;
}

/* 渐变线条 */
.gradient-line {
  position: absolute;
  height: 2px;
  background: var(--gradient-primary);
  box-shadow: var(--glow-primary);
  transform-origin: left center;
  animation: lineMove 10s infinite linear;
}

.gradient-line:nth-child(2n) {
  background: var(--gradient-secondary);
  box-shadow: var(--glow-secondary);
  animation-duration: 15s;
}

.gradient-line:nth-child(3n) {
  background: var(--gradient-tertiary);
  box-shadow: var(--glow-tertiary);
  animation-duration: 12s;
}

/* 顶部导航 */
.modern-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(30, 30, 30, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(187, 134, 252, 0.2);
  box-shadow: var(--shadow-md);
}

.modern-nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.modern-logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  font-family: Brush Script MT,cursive;
}

.modern-nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-item {
  position: relative;
}

.modern-nav-link {
  color: var(--text-light-tertiary);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modern-nav-link:hover,
.modern-nav-link.active {
  color: var(--text-light);
  background: rgba(187, 134, 252, 0.1);
}

.modern-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.modern-nav-actions {
  display: flex;
  align-items: center;
  gap: 15px;
}

.modern-search-box {
  display: flex;
  align-items: center;
}

.search-form {
  display: flex;
  gap: 5px;
}

.modern-search-input {
  padding: 8px 15px;
  border: 1px solid rgba(187, 134, 252, 0.3);
  border-radius: var(--border-radius-sm);
  background: rgba(30, 30, 30, 0.7);
  color: var(--text-light);
  font-size: 0.9rem;
  width: 200px;
  transition: var(--transition-normal);
}

.modern-search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: var(--glow-primary);
  width: 250px;
}

.modern-search-btn {
  padding: 8px 15px;
  background: var(--gradient-primary);
  color: var(--text-dark);
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-normal);
}

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

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px;
}

/* 移动端导航面板 */
.mobile-panel {
  position: fixed;
  top: 0;
  left: -100%;
  width: 100%;
  /* height: 100%; */
  background: var(--secondary-dark);
  z-index: 2000;
  transition: left 0.4s ease;
  display: flex;
  flex-direction: column;
}

.mobile-panel.active {
  left: 0;
}

.panel-content-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid rgba(187, 134, 252, 0.2);
}

.panel-close {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 5px;
}

.panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.mobile-menu {
  list-style: none;
  margin-bottom: 30px;
}

.mobile-item {
  margin-bottom: 10px;
}

.mobile-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light-tertiary);
  text-decoration: none;
  padding: 15px;
  border-radius: var(--border-radius-sm);
  transition: var(--transition-normal);
}

.mobile-link:hover,
.mobile-link.active {
  color: var(--text-light);
  background: rgba(187, 134, 252, 0.1);
}

.mobile-search {
  margin-top: 20px;
}

.mobile-search-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 主容器 */
.main-container {
  min-height: calc(100vh - 70px - 200px);
  padding-top: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 页脚 */
.modern-footer {
  background: var(--secondary-dark);
  border-top: 1px solid rgba(187, 134, 252, 0.2);
  padding: 40px 0 20px;
  margin-top: 50px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-title {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--accent-primary);
  font-weight: 600;
}

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

.footer-link {
  margin-bottom: 12px;
}

.footer-link a {
  color: var(--text-light-tertiary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-normal);
}

.footer-link a:hover {
  color: var(--accent-primary);
  transform: translateX(5px);
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-light-tertiary);
  font-size: 0.9rem;
}

/* 卡片组件 */
.modern-card {
  background: var(--secondary-dark);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: var(--transition-normal);
  border: 1px solid rgba(187, 134, 252, 0.1);
  box-shadow: var(--shadow-md);
}

.modern-card:hover {
  transform: translateY(-5px);
  border-color: rgba(187, 134, 252, 0.3);
  box-shadow: var(--glow-primary);
}

.card-media {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

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

.card-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--gradient-primary);
  color: var(--text-dark);
  padding: 4px 10px;
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
}

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  opacity: 0;
  transition: var(--transition-normal);
}

.modern-card:hover .card-overlay {
  opacity: 1;
}

.card-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--text-dark);
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition-normal);
  box-shadow: var(--glow-primary);
}

.card-button:hover {
  transform: scale(1.1);
}

.card-content {
  padding: 20px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-light);
}

/* 按钮 */
.modern-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: var(--gradient-primary);
  color: var(--text-dark);
  border: none;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  gap: 8px;
}

.modern-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-primary);
}

.modern-button.secondary {
  background: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

.modern-button.secondary:hover {
  background: rgba(187, 134, 252, 0.1);
  box-shadow: var(--glow-primary);
}

/* 动画 */
@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(20px, 20px) rotate(90deg);
  }
  50% {
    transform: translate(0, 40px) rotate(180deg);
  }
  75% {
    transform: translate(-20px, 20px) rotate(270deg);
  }
  100% {
    transform: translate(0, 0) rotate(360deg);
  }
}

@keyframes lineMove {
  0% {
    transform: translateX(-100%) scaleX(0.5);
  }
  50% {
    transform: translateX(50%) scaleX(1.5);
  }
  100% {
    transform: translateX(100%) scaleX(0.5);
  }
}

/* 响应式设计 */
@media (max-width: 992px) {
  .modern-nav-menu {
    display: none;
  }
  
  .modern-search-input {
    width: 100%;
  }
  
  .modern-search-input:focus {
    width: 180px;
  }
}

@media (max-width: 768px) {
  .modern-nav-container {
    padding: 0 15px;
  }
  .hamburger {
    display: block;
  }
  .container {
    padding: 0 15px;
  }
  
  .modern-search-box {
    display: none;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .modern-logo {
    font-size: 1.5rem;
  }
  
  .card-content {
    padding: 15px;
  }
  
  .card-title {
    font-size: 1.1rem;
  }
}