/* 基础重置和变量定义 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 确保所有按钮都是可交互的 */
button, .btn, [onclick] {
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

:root {
  --primary-color: #09f;
  --secondary-color: #333;
  --accent-color: #ff6b6b;
  --background-dark: #000;
  --background-light: rgba(255, 255, 255, 0.1);
  --text-primary: #fff;
  --text-secondary: #ccc;
  --border-radius: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body, #app {
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background-dark);
  color: var(--text-primary);
}

/* 页面容器 */
.page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  z-index: 10;
  pointer-events: auto; /* 确保页面可以接收点击事件 */
}

.page.active {
  display: block;
  pointer-events: auto; /* 确保活动页面可以接收点击事件 */
}

/* 背景试戴界面 */
#tryon-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none; /* 允许点击穿透到下方的按钮 */
  display: none; /* 默认隐藏，通过脚本控制显示 */
}

#tryon-background:not(.lens-selection-mode):not(.frame-selection-mode) {
  display: block; /* 只有在非选择模式时才显示 */
}

#cam {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#three {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

#status {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  backdrop-filter: blur(10px);
  z-index: 100;
}

/* 首页样式 */
#home-page {
  background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.header {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  z-index: 20; /* 确保header在背景之上 */
  position: relative; /* 确保z-index生效 */
}

.header h1 {
  font-size: 24px;
  font-weight: 600;
  background: linear-gradient(45deg, var(--primary-color), #4fc3f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-buttons {
  display: flex;
  gap: 12px;
}

.nav-btn {
  padding: 10px 20px;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  border-radius: 25px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.nav-btn:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.nav-btn:active {
  transform: translateY(0);
}

/* 控制面板 */
.controls-panel {
  padding: 24px;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  z-index: 20; /* 确保控制面板在背景之上 */
  position: relative; /* 确保z-index生效 */
}

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

.control-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.model-selector {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

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

.slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  box-shadow: var(--shadow);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow);
}

.action-buttons {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.primary-btn, .secondary-btn {
  flex: 1;
  padding: 14px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.primary-btn {
  background: var(--primary-color);
  color: white;
}

.primary-btn:hover {
  background: #0080d9;
  transform: translateY(-2px);
}

.secondary-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.secondary-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* 选择页面通用样式 */
.overlay-header {
  padding: 16px 20px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 70%, transparent 100%);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  gap: 16px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 25; /* 确保选择页面头部在最上层 */
  padding-top: calc(16px + env(safe-area-inset-top));
}

.back-btn {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.overlay-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.selection-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-height: 70vh;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.85) 80%, rgba(0, 0, 0, 0.7) 100%);
  backdrop-filter: blur(30px);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  padding: 24px;
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
  overflow-y: auto;
  z-index: 20; /* 确保选择面板在背景之上 */
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
}

/* 片型选择页面 */
.lens-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.lens-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.lens-option:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.lens-option.active {
  border-color: var(--primary-color);
  background: rgba(9, 153, 255, 0.1);
}

.lens-preview {
  width: 60px;
  height: 40px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.2));
  border: 2px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.lens-preview.round {
  border-radius: 50%;
}

.lens-preview.square {
  border-radius: 4px;
}

.lens-preview.oval {
  border-radius: 50%;
  transform: scaleX(0.7);
}

.lens-preview.cat-eye {
  border-radius: 50% 0 50% 0;
  transform: rotate(15deg);
}

.lens-preview.aviator {
  clip-path: polygon(20% 0%, 80% 0%, 100% 50%, 80% 100%, 20% 100%, 0% 50%);
}

.lens-preview.hexagon {
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.lens-option span {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}

.lens-controls {
  margin-bottom: 24px;
}

.control-item {
  margin-bottom: 16px;
}

.control-item label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.range-input {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-input span {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 35px;
}

/* 镜架选择页面 */
.frame-categories {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.category-btn {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

.frame-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.frame-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.frame-option:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.frame-option.active {
  border-color: var(--primary-color);
  background: rgba(9, 153, 255, 0.1);
}

.frame-preview {
  width: 80px;
  height: 50px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.2));
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.frame-preview::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 4px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.frame-option span {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.frame-option small {
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
}

.confirm-btn {
  width: 100%;
  padding: 16px;
  background: var(--primary-color);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.confirm-btn:hover {
  background: #0080d9;
  transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .header {
    padding: 16px;
  }
  
  .header h1 {
    font-size: 20px;
  }
  
  .nav-buttons {
    gap: 8px;
  }
  
  .nav-btn {
    padding: 8px 16px;
    font-size: 14px;
  }
  
  .controls-panel {
    padding: 20px;
  }
  
  .selection-panel {
    padding: 20px;
    max-height: 75vh;
  }
  
  .lens-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .frame-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .lens-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .frame-grid {
    grid-template-columns: 1fr;
  }
  
  .action-buttons {
    flex-direction: column;
  }
}

/* 背景模糊和遮罩效果 */
#tryon-background.lens-selection-mode,
#tryon-background.frame-selection-mode {
  filter: blur(3px) brightness(0.7);
  transform: scale(1.08);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 选择页面的背景遮罩 */
.page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(1px);
  z-index: 5;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.page.active#lens-selection-page::before,
.page.active#frame-selection-page::before {
  opacity: 1;
}

/* 增强的悬停效果 */
.lens-option:hover,
.frame-option:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 25px rgba(0, 153, 255, 0.3);
  border-color: rgba(0, 153, 255, 0.5);
}

.lens-option:hover .lens-preview,
.frame-option:hover .frame-preview {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 153, 255, 0.4);
}

.lens-option.active,
.frame-option.active {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, rgba(9, 153, 255, 0.15), rgba(9, 153, 255, 0.05));
  box-shadow: 0 0 20px rgba(0, 153, 255, 0.4);
  transform: translateY(-2px) scale(1.01);
}

.lens-option.active .lens-preview,
.frame-option.active .frame-preview {
  border-color: var(--primary-color);
  box-shadow: 0 0 15px rgba(0, 153, 255, 0.6);
  transform: scale(1.05);
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page.active {
  animation: fadeIn 0.3s ease-out;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.selection-panel {
  animation: slideUp 0.3s ease-out;
}

/* 背景呼吸动画 */
@keyframes backgroundPulse {
  0%, 100% {
    filter: blur(3px) brightness(0.7);
  }
  50% {
    filter: blur(3px) brightness(0.8);
  }
}

#tryon-background.lens-selection-mode,
#tryon-background.frame-selection-mode {
  animation: backgroundPulse 4s ease-in-out infinite;
}

/* 状态指示器增强 */
#status {
  position: absolute;
  top: 20px;
  left: 20px;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6));
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 25px;
  font-size: 14px;
  backdrop-filter: blur(15px);
  z-index: 100;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

#status:hover {
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7));
  transform: translateY(-2px);
}

/* 导航按钮增强 */
.nav-btn {
  padding: 10px 20px;
  border: 2px solid var(--primary-color);
  background: linear-gradient(135deg, transparent, rgba(0, 153, 255, 0.1));
  color: var(--primary-color);
  border-radius: 25px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nav-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 153, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.nav-btn:hover {
  background: linear-gradient(135deg, var(--primary-color), #0080d9);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 153, 255, 0.4);
}

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

/* 页面切换时的平滑过渡 */
.page {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.page:not(.active) {
  opacity: 0;
  pointer-events: none;
}

.page.active {
  opacity: 1;
  pointer-events: auto;
}

/* 选择页面的特殊背景效果 */
#lens-selection-page,
#frame-selection-page {
  background: transparent;
  pointer-events: none;
}

#lens-selection-page > *,
#frame-selection-page > * {
  pointer-events: auto;
}

/* 增强的确认按钮 */
.confirm-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--primary-color), #0080d9);
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(0, 153, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.confirm-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s ease;
}

.confirm-btn:hover {
  background: linear-gradient(135deg, #0080d9, var(--primary-color));
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 153, 255, 0.4);
}

.confirm-btn:hover::before {
  left: 100%;
}