/* ============================================================
   车机大屏展示页样式（只读）
   兼容性：避开可选链 / 空值合并，适配老旧车机 WebView
   交互模型：中央展示区（默认轮播）+ 底部组件切换栏（带预览）
   ============================================================ */

.display-root {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg-deep);
  user-select: none;
}

/* ---------- 背景层 ---------- */

.bg-layer {
  position: absolute;
  inset: 0;
  z-index: var(--z-bg);
  background: var(--bg-deep);
  transition: opacity var(--dur-slow) var(--ease);
}

.bg-layer__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease);
}

.bg-layer__img.is-active {
  opacity: 1;
}

.bg-layer__img.fit-cover { object-fit: cover; }
.bg-layer__img.fit-contain { object-fit: contain; }
.bg-layer__img.fit-fill { object-fit: fill; }

/* 默认渐变背景（图片缺失时回退，纯 CSS 不依赖资源） */
.bg-fallback {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 22% 18%, rgba(88, 166, 255, 0.22), transparent 42%),
    radial-gradient(circle at 82% 78%, rgba(124, 92, 255, 0.2), transparent 46%),
    linear-gradient(160deg, #0d1420 0%, #05080b 100%);
}

[data-theme="light"] .bg-fallback {
  background:
    radial-gradient(circle at 22% 18%, rgba(10, 99, 201, 0.16), transparent 44%),
    radial-gradient(circle at 82% 78%, rgba(90, 130, 200, 0.14), transparent 48%),
    linear-gradient(160deg, #f4f7fb 0%, #dbe2ec 100%);
}

/* 顶部/底部压暗遮罩，保证角落文字可读 */
.bg-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    var(--scrim-soft) 0%,
    transparent 24%,
    transparent 70%,
    var(--scrim-strong) 100%
  );
}

/* ---------- 内容层 ---------- */

.stage {
  position: relative;
  z-index: var(--z-content);
  width: 100%;
  height: 100%;
  padding: clamp(20px, 3vw, 48px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(12px, 2vh, 28px);
}

/* 顶栏 */
.topbar {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: var(--space-6);
}

.topbar__spacer { order: 2; flex: 1; }
.controls { order: 1; }

/* ---------- 中央展示区 ---------- */

.showcase {
  position: relative;
  min-height: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-slow) var(--ease);
}

.view.is-active {
  opacity: 1;
  visibility: visible;
}

/* 隐藏被后台关掉的单项组件 */
.view.is-component-off {
  display: none !important;
}

/* ---------- 轮播视图（可左右滑动） ---------- */

.carousel {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  touch-action: pan-y;
}

.carousel__track {
  display: flex;
  height: 100%;
  width: 100%;
  transition: transform var(--dur-slow) var(--ease);
  will-change: transform;
}

.carousel__slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.carousel__dots {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-2);
  z-index: 3;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--dur-base) var(--ease);
}

.carousel__dot.is-active {
  width: 28px;
  background: #fff;
}

.carousel__empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: clamp(16px, 2vw, 24px);
}

/* ---------- 日历视图 ---------- */

.calendar-wrap {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: clamp(12px, 1.8vw, 28px);
  flex-wrap: wrap;
  width: 100%;
  height: 100%;
  padding: clamp(10px, 2vh, 24px) clamp(10px, 2vw, 24px);
  box-sizing: border-box;
  overflow: hidden;
}

.calendar {
  flex: 3 1 0;
  width: auto;
  min-width: 0;
  max-width: 100%;
  max-height: 100%;
  padding: clamp(14px, 2.2vh, 30px) clamp(16px, 2.6vw, 36px);
  border-radius: var(--radius-xl);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.calendar__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: clamp(10px, 1.8vh, 24px);
  font-size: clamp(22px, 2.8vw, 38px);
  font-weight: 600;
  flex-shrink: 0;
}

.calendar__lunar {
  font-size: clamp(14px, 1.6vw, 22px);
  font-weight: 500;
  color: var(--text-secondary);
}

.calendar__weekdays,
.calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: clamp(3px, 0.6vh, 8px);
}

.calendar__weekdays {
  margin-bottom: var(--space-3);
  font-size: clamp(14px, 1.5vw, 20px);
  color: var(--text-secondary);
  font-weight: 500;
}

.calendar__weekdays span,
.calendar__day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: clamp(18px, 2.2vw, 30px);
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}

.calendar__day {
  flex-direction: column;
  gap: 2px;
  padding: 2px;
  background: var(--surface-1);
  color: var(--text-primary);
  font-weight: 400;
}

.calendar__num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.2vw, 30px);
  line-height: 1;
}

.calendar__lunar-day {
  font-size: clamp(10px, 1.05vw, 14px);
  color: var(--text-tertiary);
  line-height: 1;
  transform: scale(0.92);
}

.calendar__day.is-festival { background: var(--accent-surface); }
.calendar__day.is-festival .calendar__num { color: var(--accent); }
.calendar__lunar-day.is-fest { color: var(--accent); font-weight: 600; }

.calendar__day.is-other {
  color: var(--text-tertiary);
  background: transparent;
}

.calendar__day.is-today {
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

.calendar__day.is-today .calendar__lunar-day { color: var(--accent-text); opacity: 0.85; }
.calendar__day.is-today .calendar__lunar-day.is-fest { color: var(--accent-text); }

/* 节日倒计时面板 */
.holiday-panel {
  flex: 1 1 0;
  width: auto;
  min-width: 0;
  max-width: 100%;
  max-height: 100%;
  padding: clamp(14px, 2.2vh, 30px) clamp(16px, 2.2vw, 28px);
  border-radius: var(--radius-xl);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.holiday-panel__title {
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 600;
  margin: 0 0 clamp(12px, 2vh, 24px);
}

.holiday-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.4vh, 16px);
  overflow-y: auto;
}

.holiday-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "name left"
    "date left";
  align-items: center;
  gap: 2px 12px;
  padding: clamp(8px, 1.4vh, 16px) clamp(10px, 1.6vw, 18px);
  border-radius: var(--radius-md);
  background: var(--surface-1);
}

.holiday-item__name {
  grid-area: name;
  font-size: clamp(16px, 1.8vw, 24px);
  font-weight: 600;
}

.holiday-item__date {
  grid-area: date;
  font-size: clamp(12px, 1.2vw, 16px);
  color: var(--text-secondary);
}

.holiday-item__left {
  grid-area: left;
  font-size: clamp(13px, 1.4vw, 18px);
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}

/* 日历组件预览 */
.dock__date {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 300;
  line-height: 1;
}

/* ---------- 时间视图 ---------- */

.clock-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 1.6vh, 22px);
  padding: clamp(28px, 4vw, 64px) clamp(36px, 6vw, 96px);
  border-radius: var(--radius-xl);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-panel);
  max-width: min(92vw, 1100px);
}

.clock__time {
  font-family: var(--font-num);
  font-size: clamp(96px, 16vw, 300px);
  font-weight: 200;
  line-height: 0.92;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  text-shadow: 0 4px 32px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .clock__time {
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.14);
}

.clock__meridiem {
  font-size: 0.24em;
  font-weight: 400;
  margin-left: 0.12em;
  vertical-align: baseline;
  color: var(--text-secondary) !important;
  opacity: 0.8;
}

.clock__seconds {
  font-size: 0.2em;
  font-weight: 300;
  color: var(--text-secondary) !important;
  margin-left: 0.08em;
  vertical-align: super;
  opacity: 0.8;
}

/* 时钟里的秒数：与时分同大小、同基线、同色（含后台自定义颜色） */
.clock__time .clock__seconds {
  font-size: 1em;
  font-weight: inherit;
  color: inherit !important;
  vertical-align: baseline;
  opacity: 1;
  margin-left: 0;
}

.clock__date {
  margin-top: clamp(8px, 1.5vh, 20px);
  font-size: clamp(18px, 2.2vw, 34px);
  font-weight: 400;
  color: var(--text-secondary);
}

.clock__lunar {
  font-size: 0.82em;
  opacity: 0.75;
  margin-left: 0.45em;
  letter-spacing: 0.02em;
}

/* ---------- 秒表 / 倒计时 ---------- */

.tool-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 4vh, 48px);
  padding: clamp(28px, 4vw, 64px) clamp(32px, 5vw, 80px);
  width: min(92vw, 1100px);
  border-radius: var(--radius-xl);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-panel);
}

.tool-time {
  font-family: var(--font-num);
  font-size: clamp(72px, 16vw, 240px);
  font-weight: 200;
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  text-shadow: 0 4px 32px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .tool-time {
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.14);
}

.tool-controls {
  display: flex;
  gap: clamp(16px, 3vw, 40px);
}

.tool-btn,
.preset-btn {
  min-width: clamp(120px, 18vw, 220px);
  min-height: var(--touch-car);
  padding: 0 clamp(20px, 3vw, 40px);
  border-radius: var(--radius-lg);
  background: var(--scrim-panel);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 600;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.tool-btn:active,
.preset-btn:active { transform: scale(0.94); }

.tool-btn.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.timer-presets {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(10px, 1.6vw, 18px);
}

.preset-btn {
  min-width: clamp(90px, 12vw, 140px);
  min-height: clamp(56px, 8vh, 88px);
  font-size: clamp(16px, 1.8vw, 24px);
  font-weight: 500;
}

.preset-btn.is-active {
  background: var(--accent-surface);
  border-color: var(--accent);
  color: var(--accent-strong);
}

/* ---------- 天气视图（今天 + 未来6天） ---------- */

.weather-detail {
  width: min(100%, 1100px);
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2.4vh, 32px);
  padding: clamp(8px, 2vh, 24px);
}

.weather-detail__today {
  display: flex;
  align-items: center;
  gap: clamp(20px, 4vw, 56px);
  padding: clamp(20px, 3vh, 40px) clamp(24px, 4vw, 56px);
  border-radius: var(--radius-xl);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.weather-detail__today .wd-ico {
  width: clamp(64px, 8vw, 112px);
  height: clamp(64px, 8vw, 112px);
  flex-shrink: 0;
  color: var(--accent);
}

.weather-detail__today .wd-temp {
  font-family: var(--font-num);
  font-size: clamp(56px, 9vw, 120px);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.02em;
}

.weather-detail__today .wd-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.weather-detail__today .wd-city {
  font-size: clamp(20px, 2.4vw, 34px);
  font-weight: 600;
}

.weather-detail__today .wd-text {
  font-size: clamp(16px, 1.8vw, 24px);
  color: var(--text-secondary);
}

.weather-detail__today .wd-extra {
  margin-top: var(--space-2);
  font-size: clamp(13px, 1.3vw, 17px);
  color: var(--text-tertiary);
}

.weather-detail__today .wd-stale {
  color: var(--warning);
}

.weather-detail__days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: clamp(8px, 1vw, 16px);
}

.wd-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(4px, 1vh, 10px);
  padding: clamp(12px, 2vh, 22px) var(--space-2);
  border-radius: var(--radius-lg);
  background: var(--scrim-panel);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.wd-card.is-today {
  border-color: var(--accent);
  background: var(--accent-surface);
}

.wd-card__label {
  font-size: clamp(13px, 1.3vw, 18px);
  font-weight: 600;
}

.wd-card__ico {
  width: clamp(30px, 3.6vw, 48px);
  height: clamp(30px, 3.6vw, 48px);
  color: var(--accent);
}

.wd-card__text {
  font-size: clamp(12px, 1.2vw, 16px);
  color: var(--text-secondary);
}

.wd-card__temp {
  font-family: var(--font-num);
  font-size: clamp(14px, 1.5vw, 20px);
  font-weight: 500;
}

.wd-card__low {
  color: var(--text-tertiary);
}

/* ---------- 底部组件切换栏 ---------- */

.dock {
  display: flex;
  gap: clamp(8px, 1.4vw, 22px);
  justify-content: center;
  align-items: stretch;
  width: 100%;
  max-width: 100%;
  flex-wrap: nowrap;
  overflow: hidden;
}

.dock__item {
  flex: 1 1 0;
  min-width: 0;
  min-height: var(--touch-car);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--scrim-panel);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-weight: 500;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
  overflow: hidden;
}

.dock__item:active { transform: scale(0.95); }

.dock__item.is-active {
  border-color: var(--accent);
  background: var(--accent-surface);
  color: var(--accent-strong);
}

.dock__item.is-component-off { display: none !important; }

.dock__label {
  font-size: clamp(14px, 1.4vw, 19px);
}

/* 时间预览 */
.dock__time {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 300;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* 天气预览 */
.dock__weather {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.dock__wico {
  width: clamp(26px, 3vw, 40px);
  height: clamp(26px, 3vw, 40px);
  flex-shrink: 0;
  color: var(--accent);
}

.dock__wtemp {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 300;
  line-height: 1;
}

/* 轮播预览：首图缩略 */
.dock__thumb {
  width: clamp(56px, 7vw, 96px);
  height: clamp(40px, 5vw, 64px);
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--surface-1);
}

/* ---------- 控制条按钮 ---------- */

.controls {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.ctrl-btn {
  min-width: var(--touch-car);
  min-height: var(--touch-car);
  padding: 0 var(--space-4);
  border-radius: var(--radius-md);
  background: var(--scrim-panel);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 500;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.ctrl-btn svg { width: 26px; height: 26px; flex-shrink: 0; }

/* 车机无 hover，只用 active 按压反馈 */
.ctrl-btn:active { transform: scale(0.94); background: var(--surface-2); }

.ctrl-btn.is-on {
  background: var(--accent-surface);
  border-color: var(--accent);
  color: var(--accent-strong);
}

/* ---------- 后台管理二维码弹窗 ---------- */

.qr-modal {
  position: absolute;
  inset: 0;
  z-index: var(--z-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.qr-modal.is-visible { display: flex; }

.qr-modal__card {
  background: var(--scrim-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: clamp(28px, 4vw, 52px);
  text-align: center;
  max-width: min(90vw, 520px);
  width: 90%;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-panel);
}

.qr-modal__title {
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 600;
  margin: 0 0 var(--space-2);
}

.qr-modal__hint {
  font-size: clamp(14px, 1.5vw, 20px);
  color: var(--text-secondary);
  margin: 0 0 var(--space-6);
  line-height: 1.6;
}

.qr-frame--sm {
  width: clamp(180px, 22vw, 260px);
  height: clamp(180px, 22vw, 260px);
}

.qr-modal__close {
  margin-top: var(--space-6);
  min-height: var(--touch-car);
  padding: 0 var(--space-8);
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--accent-text);
  font-size: clamp(16px, 1.5vw, 20px);
  font-weight: 600;
}

.qr-modal__close:active { transform: scale(0.96); }

/* ---------- 全部隐藏：点击背景图恢复显示 ---------- */

.display-root.is-blank .stage { display: none; }
.display-root.is-blank .bg-layer { cursor: pointer; }

/* ---------- 离线横幅 ---------- */

.offline-banner {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-overlay);
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: var(--scrim-panel);
  border: 1px solid var(--warning);
  color: var(--warning);
  font-size: clamp(13px, 1.2vw, 16px);
  font-weight: 500;
  display: none;
  align-items: center;
  gap: var(--space-2);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.offline-banner.is-visible { display: inline-flex; }

/* ---------- 未登录：二维码登录态 ---------- */

.login-gate {
  position: absolute;
  inset: 0;
  z-index: var(--z-overlay);
  display: none;
  align-items: center;
  justify-content: center;
}

.login-gate.is-visible { display: flex; }

.login-card {
  background: var(--scrim-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: clamp(32px, 5vw, 64px);
  text-align: center;
  max-width: min(90vw, 620px);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-panel);
}

.login-card__title {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 600;
  margin: 0 0 var(--space-3);
}

.login-card__hint {
  font-size: clamp(15px, 1.6vw, 22px);
  color: var(--text-secondary);
  margin: 0 0 var(--space-8);
  line-height: 1.6;
}

.qr-frame {
  width: clamp(220px, 26vw, 340px);
  height: clamp(220px, 26vw, 340px);
  margin: 0 auto var(--space-6);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.qr-frame img { width: 100%; height: 100%; image-rendering: pixelated; }

.qr-frame__mask {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  color: #121820;
}

.qr-frame.is-expired .qr-frame__mask,
.qr-frame.is-scanned .qr-frame__mask { display: flex; }

.qr-status {
  font-size: clamp(15px, 1.6vw, 20px);
  color: var(--text-secondary);
  min-height: 1.6em;
}

.qr-refresh {
  margin-top: var(--space-5);
  min-height: var(--touch-car);
  padding: 0 var(--space-8);
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--accent-text);
  font-size: clamp(16px, 1.6vw, 20px);
  font-weight: 600;
  display: none;
}

.qr-refresh.is-visible { display: inline-flex; align-items: center; justify-content: center; }
.qr-refresh:active { transform: scale(0.96); }

/* ---------- 屏保（OLED 防烧屏） ---------- */

.screensaver {
  position: absolute;
  inset: 0;
  z-index: var(--z-saver);
  background: #000;
  display: none;
  cursor: none;
}

.screensaver.is-active { display: block; }

.screensaver__pixel {
  position: absolute;
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--font-num);
  font-size: clamp(40px, 6vw, 84px);
  font-weight: 200;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  will-change: transform;
  transition: transform 1.6s linear, top 0s;
}

/* ---------- Toast ---------- */

.toast {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translate(-50%, 20px);
  z-index: var(--z-overlay);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  background: var(--surface-solid);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  font-size: clamp(14px, 1.3vw, 18px);
  box-shadow: var(--shadow-raise);
  opacity: 0;
  pointer-events: none;
  transition: all var(--dur-base) var(--ease);
}

.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 小屏 / 竖屏车机适配 ---------- */

@media (max-width: 900px) {
  .topbar { flex-direction: column; align-items: stretch; }
  .controls { justify-content: flex-start; flex-wrap: wrap; }
  .calendar-wrap { flex-direction: column; }
  .weather-detail__days { grid-template-columns: repeat(4, 1fr); }
  .weather-detail__days .wd-card:nth-child(n+5) { display: none; }
  .calendar__weekdays span,
  .calendar__day { font-size: clamp(14px, 1.8vw, 22px); }
}

/* 竖屏中控（近方形偏竖，如蔚来 EC6 1600×1400）：
   利用充裕的纵向空间，时钟纵向放大；底部 6 个按钮在 ≥760px 宽时保持单行 */
@media (orientation: portrait) {
  .clock-card { max-width: min(90vw, 1080px); }
  .tool-panel { width: min(90vw, 1080px); }
  .clock__time { font-size: clamp(88px, 15vh, 300px); }
  .tool-time { font-size: clamp(72px, 13vh, 240px); }
  .weather-detail__days { grid-template-columns: repeat(4, 1fr); }
  .weather-detail__days .wd-card:nth-child(n+5) { display: none; }
  .calendar-wrap { flex-direction: column; }
  .calendar__weekdays span,
  .calendar__day { font-size: clamp(14px, 1.8vw, 22px); }
}

/* 横屏窄车机：底部按钮换行，避免挤压溢出屏幕 */
@media (max-width: 760px) {
  .dock { flex-wrap: wrap; }
  .dock__item { flex: 1 1 calc(33.333% - 12px); }
}