/* 导航栏样式 */
body #main-nav {
  background: linear-gradient(90deg, #1d4ed8, #3b82f6);
  color: #fff;
  width: 100%;
  padding: 12px 0;
  margin: 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: block;
}

/* 导航栏容器 */
body #main-nav .nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

/* 导航按钮基础样式 */
body #main-nav .nav-btn {
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  min-width: 110px;
  white-space: nowrap;
  height: 46px;
  line-height: 1;
  backdrop-filter: blur(15px);
  cursor: pointer;
}

/* 按钮文字层级 */
body #main-nav .nav-btn span {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 按钮图标样式 */
body #main-nav .nav-btn i {
  font-size: 16px;
  transition: transform 0.3s ease;
}

/* 按钮背景动画 */
body #main-nav .nav-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.5s ease;
  z-index: 1;
}

body #main-nav .nav-btn:hover::before {
  left: 100%;
}

/* 按钮发光效果 */
body #main-nav .nav-btn::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.3), transparent, rgba(255, 255, 255, 0.3));
  border-radius: 28px;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
  pointer-events: none;
}

body #main-nav .nav-btn:hover::after {
  opacity: 1;
}

/* 浅色按钮样式 */
body #main-nav .nav-btn-light {
  background: rgba(255, 255, 255, 0.12);
  border: 2px solid rgba(255, 255, 255, 0.25);
  color: #fff;
}

body #main-nav .nav-btn-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}

body #main-nav .nav-btn-light:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
}

/* 主色按钮样式 - 更突出的设计 */
body #main-nav .nav-btn-primary {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.2));
  border: 2px solid rgba(255, 255, 255, 0.9);
  color: #fff;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

body #main-nav .nav-btn-primary:hover {
  background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.95));
  color: #1d4ed8;
  border-color: #fff;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  text-shadow: none;
}

body #main-nav .nav-btn-primary:hover i {
  transform: scale(1.15);
}

body #main-nav .nav-btn-primary:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22);
}

/* 活跃状态按钮样式 */
body #main-nav .nav-btn.active {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

body #main-nav .nav-btn-primary.active {
  background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.95));
  color: #1d4ed8;
  border-color: #fff;
}

/* 开发者管理按钮特殊样式 */
body #main-nav .nav-btn-admin {
  background: linear-gradient(135deg, rgba(255, 193, 7, 0.3), rgba(255, 152, 0, 0.3));
  border: 2px solid rgba(255, 193, 7, 0.8);
  color: #fff;
  font-weight: 700;
}

body #main-nav .nav-btn-admin:hover {
  background: linear-gradient(135deg, #ffc107, #ff9800);
  color: #1d4ed8;
  border-color: #ffc107;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(255, 193, 7, 0.35);
}

/* 悬停时文字颜色变化动画 */
body #main-nav .nav-btn-primary, 
body #main-nav .nav-btn-admin {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 响应式调整 */
@media (max-width: 1024px) {
  body #main-nav .nav-btn {
    padding: 8px 18px;
    font-size: 13px;
    height: 40px;
  }
}

/* 导航栏Logo样式 */
body #main-nav .nav-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-left: 20px;
  gap: 2px;
}

body #main-nav .nav-title {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  white-space: nowrap;
}

body #main-nav .nav-subtitle {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  white-space: nowrap;
}

/* 导航切换按钮样式 */
body #main-nav .nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 8px;
  z-index: 1001;
}

body #main-nav .nav-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.6);
}

body #main-nav .nav-toggle-icon {
  position: relative;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: all 0.3s ease;
}

body #main-nav .nav-toggle-icon::before,
body #main-nav .nav-toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: #fff;
  transition: all 0.3s ease;
  left: 0;
}

body #main-nav .nav-toggle-icon::before {
  top: -8px;
}

body #main-nav .nav-toggle-icon::after {
  top: 8px;
}

body #main-nav .nav-toggle.active .nav-toggle-icon {
  background: transparent;
}

body #main-nav .nav-toggle.active .nav-toggle-icon::before {
  transform: rotate(45deg);
  top: 0;
}

body #main-nav .nav-toggle.active .nav-toggle-icon::after {
  transform: rotate(-45deg);
  top: 0;
}

/* 导航按钮容器样式 */
body #main-nav .nav-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-right: 0;
  transition: all 0.3s ease;
}

/* 用户菜单样式 */
body #main-nav .nav-user-menu {
  display: flex;
  gap: 12px;
  align-items: center;
}

body #main-nav .nav-username {
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 确保页面布局正确，footer能显示在底部 */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* main元素样式 */
main {
  flex: 1;
  padding-top: 120px;
  margin-top: 0;
  background: transparent;
}

/* 消息提示容器样式 */
.flash-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0;
}

/* 消息提示样式 */
.flash {
  margin: 28px auto;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  max-width: 1200px;
}

/* 页脚样式 - 位于页面底部 */
.site-footer {
  background: #1a1a1a;
  color: #ffffff;
  padding: 20px 0;
  margin: 0;
  border-top: 1px solid #333;
  width: 100%;
}

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

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: #aaa;
}

.footer-content a {
  color: #aaa;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-content a:hover {
  color: #fff;
}

.copyright {
  margin-right: 10px;
}

.icp-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icp-info img {
  margin-left: 8px;
  vertical-align: middle;
  height: 20px;
}

/* 导航栏响应式设计 */
@media (max-width: 1024px) {
  body #main-nav .nav-buttons {
    gap: 12px;
  }
  
  body #main-nav .nav-btn {
    padding: 8px 12px;
    font-size: 13px;
  }
}

@media (max-width: 768px) {
  body #main-nav .nav-container {
    padding: 0 20px;
  }
  
  /* 显示汉堡菜单，隐藏常规导航 */
  body #main-nav .nav-toggle {
    display: flex;
  }
  
  body #main-nav .nav-buttons {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: linear-gradient(180deg, #1d4ed8, #3b82f6);
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    padding: 20px 0;
    transition: left 0.3s ease;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }
  
  body #main-nav .nav-buttons.active {
    left: 0;
  }
  
  /* 确保移动导航菜单内的按钮有足够的点击区域 */
  body #main-nav .nav-buttons.active .nav-btn {
    padding: 18px 30px;
    font-size: 16px;
    min-height: 56px;
  }
  
  /* 调整导航栏logo在移动端的显示 */
  body #main-nav .nav-logo {
    margin-left: 0;
  }
  
  /* 调整导航栏容器内边距，适配移动端 */
  body #main-nav .nav-container {
    padding: 0 16px;
  }
  
  /* 确保主内容区域在移动端有足够的顶部内边距，避免被导航栏遮挡 */
  main {
    padding-top: 90px;
  }
  
  body #main-nav .nav-btn {
    display: block;
    padding: 16px 30px;
    border-radius: 0;
    font-size: 16px;
    border: none;
    text-align: left;
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  body #main-nav .nav-btn:last-child {
    border-bottom: none;
  }
  
  body #main-nav .nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: none;
  }
  
  body #main-nav .nav-btn-light {
    background: transparent;
    border-color: transparent;
  }
  
  body #main-nav .nav-btn-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: transparent;
  }
  
  body #main-nav .nav-btn-primary {
    background: transparent;
    border-color: transparent;
  }
  
  body #main-nav .nav-btn-primary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: transparent;
  }
  
  body #main-nav .nav-user-menu {
    padding: 16px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    justify-content: flex-start;
  }
  
  /* 页脚响应式设计 */
  .footer-content {
    flex-direction: column;
    gap: 12px;
  }
  
  .copyright {
    margin-right: 0;
  }
  
  .icp-info {
    flex-direction: column;
    gap: 8px;
  }
  
  .icp-info img {
    margin-left: 0;
    margin-top: 4px;
  }
}