/* ==========================================================================
   couples.css - “情侣空间”深度个性化视觉交互样式矩阵
   设计风格：极简主义、治愈系、轻拟物、Frosted Glass
   ========================================================================== */

/* 独立滑入主容器 - 支持自定义情侣空间主背景图 */
.win-couples {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: var(--couples-main-bg, url('images/couples_main_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #fff5f7;
  z-index: 950;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.1, 0.76, 0.55, 0.94);
  pointer-events: none;
  overflow: hidden;
}

.win-couples.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 顶部高度透明轻盈毛玻璃导航条 */
.couples-navbar {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 50px;
  box-sizing: border-box;
  flex-shrink: 0;
}

.couples-navbar h3 {
  font-size: 15px;
  font-weight: 800;
  color: #475569;
  letter-spacing: 0.5px;
  margin: 0;
}

/* 主滑入区域 */
.couples-body-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scrollbar-width: none;
}

.couples-body-scroll::-webkit-scrollbar {
  display: none;
}

/* 关系与纪念日头部看板 */
.couples-relation-header {
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.02);
}

.couples-avatars-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  width: 100%;
}

.couples-avatar-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.couples-avatar-node img {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  border: 2.5px solid #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.couples-avatar-name {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  max-width: 64px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.couples-connection-line {
  flex: 1;
  max-width: 100px;
  height: 2px;
  background: linear-gradient(90deg, #bae6fd, #fecdd3);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.couples-line-heart {
  position: absolute;
  width: 22px;
  height: 22px;
  background: #ffffff;
  border-radius: 50%;
  border: 1px solid rgba(254, 205, 211, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  color: #fda4af;
}

.couples-anniversary-counter {
  text-align: center;
}

.couples-anniversary-title {
  font-size: 11px;
  font-weight: 700;
  color: #94a3b8;
  letter-spacing: 1px;
}

.couples-anniversary-days {
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(135deg, #f43f5e, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 2px;
  font-feature-settings: "tnum";
}

/* 今日心情卡片 (Mood Card) */
.couples-mood-card {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.couples-mood-chat-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.couples-mood-bubble {
  padding: 8px 12px;
  font-size: 12px;
  line-height: 1.45;
  max-width: 80%;
  word-break: break-all;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.couples-mood-bubble.char {
  background-color: rgba(224, 242, 254, 0.6);
  color: #0369a1;
  border-radius: 12px 12px 12px 4px;
  align-self: flex-start;
  border: 1px solid rgba(186, 230, 253, 0.4);
}

.couples-mood-bubble.user {
  background-color: rgba(255, 241, 242, 0.6);
  color: #be123c;
  border-radius: 12px 12px 4px 12px;
  align-self: flex-end;
  border: 1px solid rgba(254, 205, 211, 0.4);
}

.couples-mood-progress-container {
  margin-top: 4px;
}

.couples-mood-progressbar {
  height: 6px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.couples-mood-progressbar-fill {
  height: 100%;
  background: linear-gradient(90deg, #fda4af, #c084fc);
  border-radius: 3px;
  width: 60%;
  transition: width 0.3s ease;
}

.couples-mood-progress-dot {
  position: absolute;
  top: 50%;
  left: 60%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: #ffffff;
  border: 2.5px solid #fda4af;
  border-radius: 50%;
  box-shadow: 0 1.5px 4px rgba(0, 0, 0, 0.15);
}

.couples-mood-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10.5px;
  font-weight: 700;
  color: #94a3b8;
  margin-top: 2px;
}

/* 4大功能圆形入口导航 */
.couples-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.couples-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.couples-nav-icon-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  color: #64748b;
  transition: transform 0.15s ease, background 0.15s, box-shadow 0.15s;
}

.couples-nav-item:hover .couples-nav-icon-btn {
  transform: scale(1.06);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 6px 16px rgba(0,0,0,0.04);
}

.couples-nav-label {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
}

/* 底部扩展功能矩形双卡片 */
.couples-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.couples-bottom-card {
  border-radius: 20px;
  padding: 14px;
  box-sizing: border-box;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.02);
  transition: transform 0.15s ease;
  position: relative;
  overflow: hidden;
}

.couples-bottom-card:hover {
  transform: scale(1.02);
}

.couples-bottom-card.wishlist {
  background: rgba(255, 241, 242, 0.65);
  border: 1.5px solid rgba(254, 205, 211, 0.6);
}

.couples-bottom-card.placeholder {
  background: rgba(240, 249, 255, 0.65);
  border: 1.5px solid rgba(186, 230, 253, 0.6);
}

.couples-card-title {
  font-size: 13px;
  font-weight: 800;
  color: #475569;
}

.couples-card-desc {
  font-size: 10px;
  color: #94a3b8;
  font-weight: 600;
  margin-top: 4px;
}

/* 云朵修饰元素 */
.couples-cloud-decoration {
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  filter: blur(8px);
  pointer-events: none;
}

/* ==========================================================================
   二级子页面深度样式表 (完全滑入覆盖整屏页头，解决双导航Bug) [3]
   ========================================================================== */

.couples-sub-page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fafbfc;
  z-index: 960;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.1, 0.76, 0.55, 0.94);
  pointer-events: none;
}

/* 愿望清单专属自定义背景 */
#page-couples-wish {
  background-image: var(--couples-wish-bg, url('images/couples_wish_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #fff5f7;
}

/* 拍立得相册专属自定义背景 */
#page-couples-album {
  background-image: var(--couples-album-bg, url('images/couples_album_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #f0fdf4;
}

/* 强制清除相册内页底色的不透明遮挡，使自定义背景图显现 [3] */
#page-couples-album .couples-sub-body {
  background: transparent !important;
}

/* 纪念日程专属自定义背景 */
#page-couples-calendar {
  background-image: var(--couples-calendar-bg, url('images/couples_calendar_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #fff5f7;
}

/* 恋手账架过渡页专属自定义背景 */
#page-couples-handbook {
  background-image: var(--couples-handbook-bg, url('images/couples_handbook_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #fff5f7;
}

/* 悄悄话对话页专属自定义背景 */
#page-couples-whisper {
  background-image: var(--couples-whisper-bg, url('images/couples_whisper_bg.jpg'));
  background-size: cover;
  background-position: center;
  background-color: #fff5f7;
}

#page-couples-whisper .couples-whisper-chat-flow {
  background: transparent !important;
}

.couples-sub-page.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.couples-sub-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  box-sizing: border-box;
}

/* 1. 日程页面：月历向周历的无缝物理缩滑过渡 [5] */
.couples-calendar-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.couples-calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 800;
  color: #334155;
}

/* 月历模式下的 35 格栅 */
.couples-month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  background: rgba(255, 255, 255, 0.45);
  border-radius: 18px;
  padding: 10px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  box-sizing: border-box;
  max-height: 300px;
  opacity: 1;
  transform: scale(1);
  transition: all 0.3s cubic-bezier(0.1, 0.76, 0.55, 0.94);
}

.couples-month-grid.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-top: 0;
  margin-bottom: 0;
  opacity: 0;
  border: none;
  overflow: hidden;
  transform: scale(0.92);
  pointer-events: none;
}

/* 周历横滑模式 */
.couples-week-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 14px;
  padding: 8px;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  box-sizing: border-box;
  max-height: 80px;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.3s cubic-bezier(0.1, 0.76, 0.55, 0.94);
}

.couples-week-row.hidden {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-top: 0;
  margin-bottom: 0;
  opacity: 0;
  border: none;
  overflow: hidden;
  transform: translateY(-10px);
  pointer-events: none;
}

.couples-calendar-weekday {
  text-align: center;
  font-size: 10px;
  font-weight: 800;
  color: #94a3b8;
  padding: 4px 0;
}

.couples-calendar-day {
  text-align: center;
  font-size: 11.5px;
  font-weight: 700;
  color: #475569;
  padding: 8px 0;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.couples-calendar-day:hover {
  background: rgba(255, 255, 255, 0.8);
}

.couples-calendar-day.selected {
  background: #ff8fa3 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(255, 143, 163, 0.35);
}

.couples-calendar-day.has-event {
  box-shadow: inset 0 -3px 0 #bae6fd;
}

.couples-calendar-day.selected.has-event {
  box-shadow: inset 0 -3px 0 rgba(255,255,255,0.6);
}

/* 生理期二级问卷面板 */
.couples-menstrual-panel {
  background: rgba(255, 241, 242, 0.75);
  border: 1.5px solid #fecdd3;
  border-radius: 16px;
  padding: 12px;
  margin-top: 10px;
  display: none;
}

.couples-menstrual-panel.active {
  display: block;
}

/* 2. 立体相册拍立得展厅 (Polaroid Studio) */
.couples-album-timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  padding-left: 20px;
}

.couples-album-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 6px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, #fecdd3 0%, #dbeafe 100%);
}

.couples-album-node {
  position: relative;
  background: rgba(255, 255, 255, 0.5);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.01);
}

.couples-album-node-dot {
  position: absolute;
  left: -18px;
  top: 18px;
  width: 10px;
  height: 10px;
  background: #ff8fa3;
  border: 2px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 1.5px 4px rgba(0,0,0,0.1);
}

/* 拍立得画框 (带写意倾斜白边) */
.couples-album-img-frame {
  width: 100%;
  aspect-ratio: 1;
  background: #ffffff;
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  padding: 10px 10px 30px 10px;
  box-sizing: border-box;
  margin: 10px 0;
  transform: rotate(-1.5deg);
  border: 1px solid rgba(0,0,0,0.04);
}

.couples-album-img-frame.text-only {
  transform: rotate(1deg);
  background: #fbfbfe;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: justify;
}

.couples-album-img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}

/* 3. 手账书架与画布工作台 (Handbook Studio) [4] */
.couples-handbook-bookshelf {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.couples-handbook-book {
  aspect-ratio: 3 / 4;
  border-radius: 12px;
  background-image: var(--couples-book-cover, url('images/couples_book_cover.jpg'));
  background-size: cover;
  background-position: center;
  border: 1.5px solid rgba(255,255,255,0.4);
  box-shadow: 0 6px 14px rgba(0,0,0,0.06);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 12px;
  box-sizing: border-box;
  transition: transform 0.15s ease;
  position: relative;
  overflow: hidden;
}

.couples-handbook-book:hover {
  transform: translateY(-4px);
}

.couples-handbook-book-title {
  font-size: 10px;
  font-weight: 800;
  color: #db2777;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 4px 6px;
  border-radius: 6px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* 手账画布工作台 (Absolute Canvas) */
.couples-handbook-workspace {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-sizing: border-box;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.02);
}

.couples-handbook-element {
  position: absolute;
  cursor: move;
  user-select: none;
  touch-action: none;
  display: inline-block;
}

.couples-handbook-element.selected {
  outline: 2px dashed #ff8fa3;
}

/* 手账页码微章指示器 */
.couples-handbook-page-badge {
  font-size: 10px;
  font-weight: 800;
  color: #db2777;
  padding: 4px 10px;
  background: #fdf2f8;
  border: 1px solid #fbcfe8;
  border-radius: 12px;
}

/* 手账项目拖动物理详情悬浮条 [4] */
.couples-element-control-dock {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: 30px;
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  z-index: 1001;
}

.couples-element-control-dock span {
  font-size: 10px;
  font-weight: 700;
  color: #64748b;
}

/* 4. 悄悄话对话 */
.couples-whisper-chat-flow {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px;
  box-sizing: border-box;
}

.couples-whisper-card {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.45;
  max-width: 80%;
  box-shadow: 0 1.5px 4px rgba(0,0,0,0.02);
}

.couples-whisper-card.char {
  background-color: #ffffff;
  color: #0f172a;
  border-radius: 16px 16px 16px 4px;
  align-self: flex-start;
  border: 1px solid rgba(0,0,0,0.05);
}

.couples-whisper-card.user {
  background-color: #ffb3c1;
  color: #ffffff;
  border-radius: 16px 16px 4px 16px;
  align-self: flex-end;
}

/* 5. 愿望清单：自研呼吸感便利贴卡片 */
.couples-wish-list-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.couples-wish-row {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.01);
  position: relative;
}

/* 手绘极细虚线装饰 (Stitch Line) */
.couples-wish-row::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  right: 3px;
  bottom: 3px;
  border: 1.5px dashed rgba(255, 143, 163, 0.15);
  border-radius: 14px;
  pointer-events: none;
}

.couples-wish-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #fda4af;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: #ffffff;
  transition: all 0.2s;
  z-index: 2;
}

.couples-wish-checkbox.checked {
  background: #f43f5e;
  border-color: #f43f5e;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(244, 63, 94, 0.3);
}

.couples-wish-content {
  flex: 1;
  font-size: 13px;
  color: #334155;
  font-weight: 700;
  text-align: left;
  z-index: 2;
}

.couples-wish-row.completed .couples-wish-content {
  text-decoration: line-through;
  color: #94a3b8;
}

/* 6. 表单素材库贴纸 */
.couples-assets-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1.5px solid var(--border);
  border-radius: 24px 24px 0 0;
  z-index: 1000;
  box-sizing: border-box;
  transform: translateY(100%);
  transition: transform 0.25s cubic-bezier(0.1, 0.76, 0.55, 0.94);
  display: flex;
  flex-direction: column;
}

.couples-assets-overlay.active {
  transform: translateY(0);
}

.couples-assets-grid {
  flex: 1;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 16px;
}

.couples-asset-thumb {
  aspect-ratio: 1;
  background: #f8fafc;
  border-radius: 12px;
  border: 1.5px dashed #cbd5e1;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.couples-asset-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   情侣空间专属微发光自研 Frosted Dialog 面板 (无 Emoji)
   ========================================================================== */
.couples-dialog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.2s ease;
  box-sizing: border-box;
  padding: 16px;
}

.couples-dialog-overlay.active {
  opacity: 1;
}

.couples-dialog-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  width: 100%;
  max-width: 310px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
  box-sizing: border-box;
  padding: 20px;
  text-align: center;
  transform: scale(0.92);
  transition: transform 0.2s cubic-bezier(0.1, 0.76, 0.55, 0.94);
}

.couples-dialog-overlay.active .couples-dialog-card {
  transform: scale(1);
}

.couples-dialog-title {
  font-size: 15px;
  font-weight: 800;
  color: #334155;
  margin-bottom: 12px;
}

/* ==========================================================================
   1/4圆盘弧形旋钮时间选择器 (Tactile Arc Time Picker) [2]
   ========================================================================== */
.couples-arc-time-picker {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 190px;
  height: 190px;
  background: radial-gradient(circle at 100% 100%, rgba(255, 255, 255, 0.92) 0%, rgba(255, 241, 242, 0.88) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top-left-radius: 100%;
  border-left: 1.5px solid rgba(255, 143, 163, 0.4);
  border-top: 1.5px solid rgba(255, 143, 163, 0.4);
  box-shadow: -4px -4px 24px rgba(0,0,0,0.06);
  z-index: 2100;
  transform: translate(100%, 100%);
  transition: transform 0.25s cubic-bezier(0.1, 0.76, 0.55, 0.94);
  touch-action: none;
  user-select: none;
  pointer-events: auto;
}

.couples-arc-time-picker.active {
  transform: translate(0, 0);
}

.couples-arc-knob {
  position: absolute;
  width: 18px;
  height: 18px;
  background: #f43f5e;
  border: 2.5px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(244, 63, 94, 0.4);
  cursor: grab;
  z-index: 2110;
  pointer-events: auto;
}

.couples-arc-readout {
  position: absolute;
  bottom: 30px;
  right: 30px;
  text-align: right;
  pointer-events: none;
}

.couples-arc-readout-time {
  font-size: 24px;
  font-weight: 900;
  color: #334155;
  font-feature-settings: "tnum";
}

.couples-arc-readout-label {
  font-size: 9px;
  font-weight: 800;
  color: #fda4af;
  margin-top: 2px;
}

/* 素材库专用贴纸分类导航选项卡 */
.couples-assets-group-tabs-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
  flex-shrink: 0;
  scrollbar-width: none;
}
.couples-assets-group-tabs-row::-webkit-scrollbar {
  display: none;
}
.couples-assets-tab {
  font-size: 10.5px;
  font-weight: 800;
  color: #64748b;
  padding: 4px 10px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}
.couples-assets-tab.active {
  background: #ff8fa3;
  color: #ffffff;
  border-color: #ff8fa3;
}