:root {
  --bg-main: #f4f6fa;          /* 高级灰蓝主背景 */
  --surface: #ffffff;          /* 纯白 */
  --surface-hover: #f1f5f9;
  --primary: #1e88e5;          /* 晴空浅蓝色 */
  --primary-light: #e3f2fd;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border: #e2e8f0;
  --danger: #ef4444;
  --shadow-sm: 0 4px 12px rgba(15,23,42,0.04);
  --shadow-md: 0 8px 30px rgba(15,23,42,0.06);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  user-select: none;
}

/* 核心修复：自动撑开为全屏模式，并在全面屏设备下自适应安全区域 */
#phone-container {
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-main);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: none;
  border-radius: 0;
  border: none;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

#desktop {
  flex: 1;
  padding: 30px 20px 20px 20px;
  overflow-y: auto;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px 16px;
  min-height: 200px;
}

.app-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  cursor: grab;
  transition: transform 0.15s ease;
}
.app-icon:active {
  cursor: grabbing;
  transform: scale(0.95);
}
.icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  background-color: var(--surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--primary);
  margin-bottom: 8px;
  pointer-events: none;
}
.icon-wrapper svg {
  width: 28px;
  height: 28px;
}
.app-icon span {
  font-size: 11px;
  color: var(--text-primary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  text-align: center;
}

#dock {
  padding: 12px 16px calc(20px + env(safe-area-inset-bottom, 0px)) 16px;
}
.dock-container {
  background-color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 28px;
  height: 78px;
  /* 统一与 #dock-grid 同源定位：使用 flex+center 让内部网格水平居中 */
  display: flex;
  flex-direction: row !important;
  justify-content: center;
  align-items: center;
  /* 给 4 个图标预留固定内容宽度，杜绝容器随屏幕拉伸而偏移 */
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 0 20px;
  box-sizing: border-box;
}

@media (max-width: 480px) {
  body { background-color: var(--bg-main); }
  #phone-container {
    max-width: 100%; max-height: 100%; border-radius: 0; border: none;
  }
}

/* 桌面翻页指示器样式 */
#desktop-page-indicator {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  height: 24px;
}
.page-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: rgba(148, 163, 184, 0.4); /* 柔和未选中灰色 */
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.page-dot.active {
  width: 18px; /* 选中时演变为小长条 */
  height: 6px;
  border-radius: 3px;
  background-color: rgba(71, 85, 105, 0.85); /* 优雅的深石板灰色 */
}
.page-add-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #07c160;
  color: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  margin-left: 4px;
  line-height: 1;
}