/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
}

/* 手机容器：用 fixed + inset 强制铺满视口，避免底部黑条 */
.yd-phone {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

/* 页面基础 */
.yd-page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  flex-direction: column;
}

.yd-page--active {
  display: flex;
  opacity: 1;
}

/* 左边缘滑动返回：跟手拖动/回弹/滑出动画 */
.yd-page.yd-swipeback--dragging {
  will-change: transform;
  /* 轻微阴影让“页面被拖出来”的层次更真实 */
  box-shadow: -12px 0 28px rgba(0,0,0,0.14);
}

.yd-page.yd-swipeback--animating {
  transition: transform 220ms cubic-bezier(0.22, 0.95, 0.28, 1);
}

/* 左边缘返回手势提示：拖动时在左侧中部显示箭头 */
.yd-swipeback-indicator {
  position: fixed;
  left: 12px;
  top: 50%;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: rgba(255,255,255,0.9);
  color: rgba(17,17,17,0.78);
  box-shadow: 0 4px 14px rgba(0,0,0,0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transform: translate3d(0, -50%, 0) scale(0.96);
  transition: opacity 120ms ease;
  z-index: 30;
}

.yd-swipeback-indicator.is-visible {
  opacity: 1;
}

.yd-swipeback-indicator svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* 页面淡入淡出（用于设置页进入/返回） */
.yd-page--transition {
  will-change: opacity;
  transition: opacity 180ms ease;
}

.yd-page--entering {
  opacity: 0;
  z-index: 3;
}

.yd-page--leaving {
  opacity: 0;
  pointer-events: none;
  z-index: 2;
}

/* 通用按钮 - 已移至 layout.css */

/* 通用表单 - 已移至 layout.css */

/* 模态框 */
.yd-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.yd-modal--active {
  display: flex;
}

.yd-modal-content {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  width: 90%;
  max-width: 400px;
  max-height: 80vh;
  overflow-y: auto;
}

.yd-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.yd-btn-close {
  background: transparent;
  color: #666;
  font-size: 24px;
  padding: 0;
  width: 30px;
  height: 30px;
  border: none;
  box-shadow: none;
}