/* 页面壳 + 三种顶栏（刘海屏 / 胶囊适配） */

.page-shell {
  min-height: 100vh;
  background: var(--color-background);
  box-sizing: border-box;
}

.page-shell--tab {
  padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
}

/* 小程序原生 tabBar 页面窗口已扣除底栏，避免滑到底多余空白 */
.page-shell--tab.page-shell--native-tabbar {
  padding-bottom: 12px;
}

.page-shell--scroll,
.page-shell--sub,
.page-shell--plain {
  padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
}

.page-shell--fixed-footer {
  padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
}

/* 无自定义 Tab 顶栏：贴顶（标题走小程序/H5 系统导航栏） */
.page-shell.no-tab-header,
.page-shell.h5-no-tab-header {
  --nav-bar-height: 0px;
  --nav-status-bar-height: 0px;
  --nav-content-height: 0px;
}

.page-shell.no-tab-header .home-aroma-nav,
.page-shell.h5-no-tab-header .home-aroma-nav {
  top: 0;
}

.tab-main-header__content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
}

.tab-main-header__title {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--nav-status-bar-height);
  height: var(--nav-content-height);
  line-height: var(--nav-content-height);
  text-align: center;
  padding: 0 48px;
  box-sizing: border-box;
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-heritage-red);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
  z-index: 1;
}

.tab-main-header__extra {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  max-width: 40vw;
}

.tab-main-header__extra-inner {
  display: flex;
  align-items: center;
  color: var(--color-heritage-red);
  font-size: 12px;
  font-weight: 500;
}

.tab-main-header__extra-inner .tab-main-city-label {
  margin-left: 4px;
}

/* ── 滚动透明顶栏（商品/门店详情） ── */
.page-nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  box-sizing: border-box;
  transition: background 0.3s, box-shadow 0.3s;
}

.page-nav-bar--solid {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.page-nav-bar__content {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.page-nav-bar__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  flex-shrink: 0;
  z-index: 2;
}

.page-nav-bar__btn--back {
  left: 0;
}

.page-nav-bar__btn--right {
  left: auto;
  right: 0;
}

/* 右侧操作槽：固定贴着内容区右缘（内容区已用 navBarPaddingRight 避让微信菜单） */
.page-nav-bar__right-slot {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-nav-bar__right-slot .page-nav-bar__btn {
  position: relative;
  top: auto;
  left: auto;
  right: auto;
  transform: none;
}

.page-nav-bar--solid .page-nav-bar__btn {
  background: transparent;
}

.page-nav-bar__btn--placeholder {
  background: transparent;
  pointer-events: none;
}

.page-nav-bar__icon {
  font-size: 32px;
  line-height: 1;
  color: var(--color-ink-black);
  font-weight: 300;
  margin-top: -2px;
}

.page-nav-bar__icon--share {
  font-size: 18px;
  font-weight: 600;
}

/* 小程序分享 Button 去默认样式，对齐圆形胶囊按钮 */
.page-nav-bar__share-btn {
  padding: 0 !important;
  margin: 0 !important;
  border: none !important;
  line-height: 1 !important;
  background: rgba(255, 255, 255, 0.8) !important;
  box-sizing: border-box;
}

.page-nav-bar__share-btn::after {
  border: none !important;
}

.page-nav-bar--solid .page-nav-bar__share-btn {
  background: transparent !important;
}

.page-nav-bar__title {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--nav-status-bar-height);
  height: var(--nav-content-height);
  line-height: var(--nav-content-height);
  text-align: center;
  padding: 0 88px 0 56px;
  box-sizing: border-box;
  opacity: 0;
  font-family: var(--font-headline);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink-black);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 1;
}

.page-nav-bar__title--visible {
  opacity: 1;
}

.page-with-nav-bar {
  padding-top: var(--nav-bar-height, 56px);
  box-sizing: border-box;
}

/* ── 子页面固定实底顶栏 ── */
.sub-page-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-background);
  box-shadow: var(--shadow-card);
  box-sizing: border-box;
}

.sub-page-header__content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
}

.sub-page-header__title {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--nav-status-bar-height);
  height: var(--nav-content-height);
  line-height: var(--nav-content-height);
  text-align: center;
  padding: 0 48px;
  box-sizing: border-box;
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-heritage-red);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
  z-index: 1;
}

.sub-page-header__back {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.sub-page-header__back-icon {
  font-size: 32px;
  line-height: 1;
  color: var(--color-heritage-red);
  font-weight: 300;
  margin-top: -2px;
}

.sub-page-header__right {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.sub-page-body {
  padding-top: 12px;
  box-sizing: border-box;
}