/* ============================================
   AI 社交页面 - 样式表
   ============================================ */

/* ============================================
   导航栏补充样式
   ============================================ */

/* Social页面导航栏默认有背景（不需要.scrolled类） */
.nav {
  background: rgba(255, 248, 240, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 20px rgba(255, 140, 66, 0.06);
}

.nav-logo-icon svg {
  width: 24px;
  height: 24px;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 用户菜单 - 与首页保持一致 */
.nav-user-menu {
  position: relative;
}

.nav-user-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 9999px;
  background: rgba(255, 138, 58, 0.1);
  transition: all 0.3s;
}

.nav-user-trigger:hover {
  background: rgba(255, 138, 58, 0.2);
}

.nav-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--warm-orange), var(--warm-yellow));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  overflow: hidden;
}

.nav-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
}

.nav-user-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--cream);
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  min-width: 180px;
  z-index: 1002;
}

.nav-user-dropdown.active {
  display: block;
}

.nav-user-dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  background: none;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
  color: var(--dark);
  font-family: inherit;
}

.nav-user-dropdown-item:hover {
  background: rgba(255, 138, 58, 0.1);
}

.nav-user-dropdown-item-danger {
  color: #EF4444;
}

.nav-user-dropdown-item-danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

.nav-user-dropdown-divider {
  height: 1px;
  background: rgba(255, 138, 58, 0.15);
  margin: 6px 0;
}

.mobile-only-nav-item {
  display: none;
}

.mobile-menu-btn {
  display: none;
}

.letter-badge {
  position: relative;
  padding: 8px 16px;
  background: var(--card-bg);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.letter-badge:hover {
  background: white;
  box-shadow: var(--shadow-soft);
}

.rematch-badge {
  position: relative;
  padding: 8px 16px;
  background: var(--card-bg);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.rematch-badge:hover {
  background: white;
  box-shadow: var(--shadow-soft);
}

.letter-badge .badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  background: var(--error);
  color: white;
  font-size: 11px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}


@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes scaleIn {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

@keyframes successPop {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes blink {
  0%, 90%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.1); }
}

@keyframes armWaveLeft {
  0%, 100% { transform: rotate(-20deg); }
  50% { transform: rotate(-50deg); }
}

@keyframes armWaveRight {
  0%, 100% { transform: rotate(20deg); }
  50% { transform: rotate(50deg); }
}

@keyframes trampolineJump {
  0%, 100% {
    transform: translateX(-50%) translateY(0) scale(1, 1);
  }
  10% {
    transform: translateX(-50%) translateY(-5px) scale(0.95, 1.05);
  }
  40% {
    transform: translateX(-50%) translateY(-70px) scale(0.9, 1.1);
  }
  50% {
    transform: translateX(-50%) translateY(-75px) scale(1.05, 0.95);
  }
  60% {
    transform: translateX(-50%) translateY(-70px) scale(1.1, 0.9);
  }
  90% {
    transform: translateX(-50%) translateY(-5px) scale(0.95, 1.05);
  }
}

@keyframes legBendLeft {
  0%, 100% { transform: rotate(0deg); }
  40%, 60% { transform: rotate(-15deg); }
}

@keyframes legBendRight {
  0%, 100% { transform: rotate(0deg); }
  40%, 60% { transform: rotate(15deg); }
}

@keyframes panBounce {
  0%, 100% { 
    transform: translateX(-50%) translateY(0) rotate(0deg);
  }
  10% { 
    transform: translateX(-50%) translateY(2px) rotate(0deg);
  }
  45% { 
    transform: translateX(-50%) translateY(-3px) rotate(-1deg);
  }
  50% { 
    transform: translateX(-50%) translateY(-5px) rotate(0deg);
  }
  55% { 
    transform: translateX(-50%) translateY(-3px) rotate(1deg);
  }
  90% { 
    transform: translateX(-50%) translateY(2px) rotate(0deg);
  }
}

@keyframes steamRise {
  0% {
    transform: translateY(0) scaleX(1);
    opacity: 0;
  }
  20% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-50px) scaleX(1.5);
    opacity: 0;
  }
}

/* ============================================
   主容器
   ============================================ */
.container {
  position: relative;
  z-index: 1;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: calc(100px * var(--spacing-scale)) calc(24px * var(--spacing-scale)) calc(40px * var(--spacing-scale));
}

/* ============================================
   页面标题
   ============================================ */
.page-header {
  text-align: center;
  margin-bottom: calc(48px * var(--spacing-scale));
}

.page-title {
  font-size: calc(42px * var(--font-scale));
  font-weight: 800;
  color: var(--dark);
  margin-bottom: calc(12px * var(--spacing-scale));
  background: linear-gradient(135deg, var(--dark) 0%, var(--warm-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-subtitle {
  font-size: calc(16px * var(--font-scale));
  color: var(--text-secondary);
}

/* ============================================
   标签页切换
   ============================================ */
.tab-nav {
  display: flex;
  justify-content: center;
  gap: calc(16px * var(--spacing-scale));
  margin-bottom: calc(40px * var(--spacing-scale));
}

.tab-btn {
  padding: calc(12px * var(--content-scale)) calc(32px * var(--content-scale));
  background: var(--card-bg);
  border: 1.5px solid rgba(255, 140, 66, 0.15);
  border-radius: var(--radius-full);
  font-size: calc(15px * var(--font-scale));
  font-weight: 600;
  color: var(--dark-light);
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  white-space: nowrap;
  align-items: center;
  gap: calc(8px * var(--content-scale));
}

.tab-btn:hover {
  background: white;
  border-color: var(--warm-orange-light);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--warm-orange), #FF6B2C);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(255, 138, 58, 0.35);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   匹配区域
   ============================================ */
.match-section {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 140, 66, 0.1);
  padding: calc(48px * var(--content-scale));
  box-shadow: var(--shadow-soft);
}

.section-title {
  font-size: calc(24px * var(--font-scale));
  font-weight: 700;
  color: var(--dark);
  margin-bottom: calc(8px * var(--spacing-scale));
  text-align: center;
}

.section-desc {
  text-align: center;
  color: var(--text-secondary);
  font-size: calc(14px * var(--font-scale));
  margin-bottom: calc(32px * var(--spacing-scale));
}

/* AI 选择卡片 */
.ai-select-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(calc(200px * var(--content-scale)), 1fr));
  gap: calc(20px * var(--spacing-scale));
  margin-bottom: calc(32px * var(--spacing-scale));
}

.ai-select-card {
  background: white;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: calc(24px * var(--content-scale));
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
}

.ai-select-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.ai-select-card.selected {
  border-color: var(--warm-orange);
  background: linear-gradient(135deg, rgba(255,138,58,0.05), rgba(255,209,102,0.05));
}

.ai-select-card.selected::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background: var(--warm-orange);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.ai-avatar {
  width: calc(64px * var(--content-scale));
  height: calc(64px * var(--content-scale));
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  margin: 0 auto calc(12px * var(--spacing-scale));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(28px * var(--content-scale));
  overflow: hidden;
}

.ai-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ai-name {
  font-size: calc(16px * var(--font-scale));
  font-weight: 600;
  color: var(--dark);
  margin-bottom: calc(4px * var(--spacing-scale));
}

.ai-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.ai-gender {
  font-size: 16px;
  line-height: 1;
}

.ai-gender.male {
  color: #5BA3E0;
}

.ai-gender.female {
  color: #F4A6B5;
}

.ai-location {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 209, 102, 0.2);
  color: var(--dark-light);
  font-weight: 500;
}

.ai-status {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
}

.ai-status.finished {
  background: rgba(76, 175, 80, 0.1);
  color: var(--success);
}

.ai-status.running {
  background: rgba(255, 140, 66, 0.1);
  color: var(--warm-orange);
}

/* 匹配按钮 */
.match-btn {
  display: block;
  width: 100%;
  max-width: calc(300px * var(--content-scale));
  margin: 0 auto;
  padding: calc(18px * var(--content-scale)) calc(48px * var(--content-scale));
  background: linear-gradient(135deg, var(--warm-orange), #FF6B2C);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-size: calc(17px * var(--font-scale));
  font-weight: 700;
  cursor: pointer;
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.match-btn:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 138, 58, 0.4);
}

.match-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================
   匹配中 Loading - 平底锅煎蛋动画
   ============================================ */
.matching-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255, 248, 240, 0.95);
  backdrop-filter: blur(10px);
  z-index: 2000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}

.matching-overlay.active {
  display: flex;
}

/* 煎蛋动画容器 */
.frying-container {
  position: relative;
  width: 280px;
  height: 220px;
  margin-bottom: 30px;
}

/* 平底锅*/
.pan {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 60px;
  background: linear-gradient(180deg, #4A4640 0%, #2D2A26 100%);
  border-radius: 0 0 100px 100px;
  box-shadow: 
    0 4px 0 #1A1815,
    0 8px 20px rgba(0,0,0,0.3);
}

/* 锅把手*/
.pan::after {
  content: '';
  position: absolute;
  right: -60px;
  top: 10px;
  width: 70px;
  height: 20px;
  background: linear-gradient(180deg, #5A564F 0%, #3D3A35 100%);
  border-radius: 0 10px 10px 0;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* 拟人化煎蛋- 蹦床小人 */
.egg {
  position: absolute;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 85px;
  transform-origin: center bottom;
}

/* 蛋身体*/
.egg-body {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 50px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 248, 240, 0.95) 100%);
  border-radius: 50% 50% 48% 48%;
  box-shadow: 
    0 3px 10px rgba(255, 140, 66, 0.25),
    inset 0 -2px 5px rgba(255, 209, 102, 0.2);
}

/* 蛋黄区*/
.egg-face {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 34px;
  height: 32px;
  background: radial-gradient(circle at 35% 35%, var(--warm-yellow) 0%, var(--warm-orange) 70%);
  border-radius: 50%;
  box-shadow: inset -1px -1px 3px rgba(0,0,0,0.08);
}

/* 眼睛 */
.egg-eyes {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.eye {
  width: 4px;
  height: 4px;
  background: var(--dark);
  border-radius: 50%;
  animation: blink 3s ease-in-out infinite;
}

@keyframes blink {
  0%, 90%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.1); }
}

/* 嘴巴 - 开心的微笑 */
.egg-mouth {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 6px;
  border-bottom: 2.5px solid var(--dark);
  border-radius: 0 0 12px 12px;
}

/* 左手 */
.egg-arm-left {
  position: absolute;
  top: 35px;
  left: -2px;
  width: 18px;
  height: 4px;
  background: var(--dark);
  border-radius: 4px;
  transform: rotate(-20deg);
  transform-origin: right center;
  animation: armWaveLeft 1.2s ease-in-out infinite;
}

.egg-arm-left::after {
  content: '';
  position: absolute;
  left: -3px;
  top: -2px;
  width: 7px;
  height: 7px;
  background: var(--dark);
  border-radius: 50%;
}

/* 右手 */
.egg-arm-right {
  position: absolute;
  top: 35px;
  right: -2px;
  width: 18px;
  height: 4px;
  background: var(--dark);
  border-radius: 4px;
  transform: rotate(20deg);
  transform-origin: left center;
  animation: armWaveRight 1.2s ease-in-out infinite;
}

.egg-arm-right::after {
  content: '';
  position: absolute;
  right: -3px;
  top: -2px;
  width: 7px;
  height: 7px;
  background: var(--dark);
  border-radius: 50%;
}

@keyframes armWaveLeft {
  0%, 100% { transform: rotate(-20deg); }
  50% { transform: rotate(-50deg); }
}

@keyframes armWaveRight {
  0%, 100% { transform: rotate(20deg); }
  50% { transform: rotate(50deg); }
}

/* 左腿 */
.egg-leg-left {
  position: absolute;
  bottom: 12px;
  left: 22px;
  width: 4px;
  height: 16px;
  background: var(--dark);
  border-radius: 4px;
  transform-origin: top center;
}

.egg-leg-left::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: -2px;
  width: 10px;
  height: 5px;
  background: var(--dark);
  border-radius: 4px 4px 2px 2px;
}

/* 右腿 */
.egg-leg-right {
  position: absolute;
  bottom: 12px;
  right: 22px;
  width: 4px;
  height: 16px;
  background: var(--dark);
  border-radius: 4px;
  transform-origin: top center;
}

.egg-leg-right::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: -2px;
  width: 10px;
  height: 5px;
  background: var(--dark);
  border-radius: 4px 4px 2px 2px;
}

/* 蹦床动画 - 在平底锅上跳跃*/
.egg.jumping {
  animation: trampolineJump 1.4s ease-in-out infinite;
}

@keyframes trampolineJump {
  0%, 100% {
    transform: translateX(-50%) translateY(0) scale(1, 1);
  }
  10% {
    transform: translateX(-50%) translateY(-5px) scale(0.95, 1.05);
  }
  40% {
    transform: translateX(-50%) translateY(-70px) scale(0.9, 1.1);
  }
  50% {
    transform: translateX(-50%) translateY(-75px) scale(1.05, 0.95);
  }
  60% {
    transform: translateX(-50%) translateY(-70px) scale(1.1, 0.9);
  }
  90% {
    transform: translateX(-50%) translateY(-5px) scale(0.95, 1.05);
  }
}

/* 蹦床时腿部弯曲动画*/
.egg.jumping .egg-leg-left {
  animation: legBendLeft 1.4s ease-in-out infinite;
}

.egg.jumping .egg-leg-right {
  animation: legBendRight 1.4s ease-in-out infinite;
}

@keyframes legBendLeft {
  0%, 100% { transform: rotate(0deg); }
  40%, 60% { transform: rotate(-15deg); }
}

@keyframes legBendRight {
  0%, 100% { transform: rotate(0deg); }
  40%, 60% { transform: rotate(15deg); }
}

/* 锅的弹性动画- 配合蹦床效果 */
.pan.shaking {
  animation: panBounce 1.4s ease-in-out infinite;
}

@keyframes panBounce {
  0%, 100% { 
    transform: translateX(-50%) translateY(0) rotate(0deg);
  }
  10% { 
    transform: translateX(-50%) translateY(2px) rotate(0deg);
  }
  45% { 
    transform: translateX(-50%) translateY(-3px) rotate(-1deg);
  }
  50% { 
    transform: translateX(-50%) translateY(-5px) rotate(0deg);
  }
  55% { 
    transform: translateX(-50%) translateY(-3px) rotate(1deg);
  }
  90% { 
    transform: translateX(-50%) translateY(2px) rotate(0deg);
  }
}

/* 热气效果 - 从蹦跳的蛋上方升起*/
.steam {
  position: absolute;
  top: 0px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 50px;
  pointer-events: none;
}

.steam-item {
  position: absolute;
  width: 6px;
  height: 25px;
  background: linear-gradient(180deg, rgba(255,140,66,0.25) 0%, transparent 100%);
  border-radius: 50%;
  animation: steamRise 2s ease-out infinite;
}

.steam-item:nth-child(1) {
  left: 25%;
  animation-delay: 0s;
}

.steam-item:nth-child(2) {
  left: 50%;
  animation-delay: 0.6s;
}

.steam-item:nth-child(3) {
  left: 75%;
  animation-delay: 1.2s;
}

@keyframes steamRise {
  0% {
    transform: translateY(0) scaleX(1);
    opacity: 0;
  }
  20% {
    opacity: 0.6;
  }
  100% {
    transform: translateY(-50px) scaleX(1.5);
    opacity: 0;
  }
}

/* 进度条容器*/
.progress-container {
  width: 300px;
  margin-top: 30px;
}

/* 进度条轨道*/
.progress-track {
  width: 100%;
  height: 12px;
  background: rgba(255, 140, 66, 0.15);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

/* 进度条填充*/
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--warm-yellow) 0%, var(--warm-orange) 100%);
  border-radius: 10px;
  width: 0%;
  transition: width 0.3s ease;
  position: relative;
}

/* 进度条光泽效果*/
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,0.4) 0%, transparent 100%);
  border-radius: 10px 10px 0 0;
}

/* 状态文字*/
.matching-status {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
  text-align: center;
}

/* 副标题*/
.matching-subtext {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: center;
}

/* 进度条底部文字*/
.progress-text {
  text-align: center;
  margin-top: 16px;
  font-size: 15px;
  color: var(--warm-orange);
  font-weight: 500;
  letter-spacing: 1px;
}

/* 对话进度 */
.chat-progress {
  text-align: center;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============================================
   匹配结果
   ============================================ */
.match-result {
  display: none;
  text-align: center;
  padding: 48px;
  background: linear-gradient(135deg, rgba(76,175,80,0.05), rgba(76,175,80,0.02));
  border-radius: var(--radius-lg);
  border: 2px solid rgba(76, 175, 80, 0.2);
}

.match-result.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.result-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--success), #66BB6A);
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: white;
  box-shadow: 0 8px 32px rgba(76, 175, 80, 0.3);
  animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
  from { transform: scale(0); }
  to { transform: scale(1); }
}

.result-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.result-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.matched-ai-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 24px;
  max-width: 320px;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-card);
}

.matched-ai-avatar {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  overflow: hidden;
}

.matched-ai-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.matched-ai-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.matched-ai-owner {
  font-size: 14px;
  color: var(--text-secondary);
}

.matched-ai-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.matched-ai-gender {
  font-size: 18px;
  line-height: 1;
}

.matched-ai-gender.male {
  color: #5BA3E0;
}

.matched-ai-gender.female {
  color: #F4A6B5;
}

.matched-ai-location {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 209, 102, 0.2);
  color: var(--dark-light);
  font-weight: 500;
}

/* ============================================
   匹配成功弹窗
   ============================================ */
.match-success-modal .modal {
  max-width: 420px;
  text-align: center;
  padding: clamp(24px, 4vh, 40px) clamp(20px, 3vw, 32px);
  max-height: min(600px, 85svh);
  overflow-y: auto;
}

.match-success-icon {
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, var(--success), #66BB6A);
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 45px;
  color: white;
  box-shadow: 0 8px 32px rgba(76, 175, 80, 0.3);
  animation: successPop 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes successPop {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

.match-success-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.match-success-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* 匹配度评分*/
.match-score {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  padding: 12px 24px;
  background: linear-gradient(135deg, rgba(255, 138, 58, 0.1), rgba(255, 209, 102, 0.1));
  border-radius: var(--radius-full);
}

.match-score-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.match-score-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--warm-orange);
}

.match-score-stars {
  color: var(--warm-yellow);
  font-size: 16px;
  letter-spacing: 2px;
}

/* 对方AI卡片 */
.opponent-ai-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 138, 58, 0.1);
}

.opponent-ai-avatar {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(255, 140, 66, 0.2);
}

.opponent-ai-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.opponent-ai-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.opponent-ai-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.meta-gender {
  font-weight: 500;
}

.meta-gender.male {
  color: #5BA3E0;
}

.meta-gender.female {
  color: #F4A6B5;
}

.meta-location {
  color: var(--text-secondary);
}

.opponent-ai-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.ai-tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 138, 58, 0.1);
  color: var(--warm-orange);
  font-weight: 500;
}

/* 弹窗按钮组*/
.match-success-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.match-success-buttons .btn {
  flex: 1;
  max-width: 160px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.match-success-buttons .btn-primary {
  background: linear-gradient(135deg, var(--warm-orange), var(--warm-orange-hover));
  color: white;
  box-shadow: 0 4px 16px rgba(255, 138, 58, 0.3);
}

.match-success-buttons .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 138, 58, 0.4);
}

.match-success-buttons .btn-secondary {
  background: white;
  color: var(--dark);
  border: 1px solid rgba(255, 138, 58, 0.3);
}

.match-success-buttons .btn-secondary:hover {
  background: rgba(255, 138, 58, 0.05);
  border-color: var(--warm-orange);
}

/* ============================================
   信件中心
   ============================================ */
.letters-section {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 140, 66, 0.1);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.letters-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.letters-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.letters-count {
  font-size: 13px;
  padding: 4px 12px;
  background: var(--warm-orange);
  color: white;
  border-radius: var(--radius-full);
}

.letters-filter {
  display: flex;
  gap: 8px;
}

.filter-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1.5px solid rgba(255, 140, 66, 0.15);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--dark-light);
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--warm-orange);
  color: white;
  border-color: var(--warm-orange);
}

/* 信件列表 */
.letters-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.letter-item {
  background: white;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.3s;
  border: 2px solid transparent;
  position: relative;
}

.letter-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(255, 140, 66, 0.1);
}

.letter-item.unread {
  background: linear-gradient(135deg, rgba(255,138,58,0.03), white);
}

.letter-item.unread::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 40px;
  background: var(--warm-orange);
  border-radius: 0 4px 4px 0;
}

.letter-item.letter-pinned {
  background: linear-gradient(135deg, rgba(255, 140, 58, 0.06), rgba(255, 209, 102, 0.06));
  border: 2px solid rgba(255, 140, 58, 0.2);
  margin-bottom: 12px;
}

.letter-item.letter-pinned:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(255, 140, 58, 0.15);
  border-color: rgba(255, 140, 58, 0.35);
}

.letter-pinned-badge {
  font-size: 11px;
  padding: 2px 8px;
  background: var(--warm-orange);
  color: white;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.letter-avatar {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  overflow: hidden;
}

.letter-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.letter-content {
  flex: 1;
  min-width: 0;
}

.letter-sender {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.letter-gender-tag {
  font-size: 14px;
  line-height: 1;
  flex-shrink: 0;
}

.letter-gender-tag.male {
  color: #5BA3E0;
}

.letter-gender-tag.female {
  color: #F4A6B5;
}

.unread-dot {
  width: 8px;
  height: 8px;
  background: var(--error);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.letter-preview {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.letter-meta {
  text-align: right;
  flex-shrink: 0;
}

.letter-time {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.letter-count {
  font-size: 12px;
  padding: 4px 10px;
  background: rgba(255, 140, 66, 0.1);
  color: var(--warm-orange);
  border-radius: var(--radius-full);
}

/* 空状态*/
.empty-state {
  text-align: center;
  padding: 64px 24px;
}

.empty-icon {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, rgba(255,140,66,0.1), rgba(255,209,102,0.1));
  border-radius: 50%;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.empty-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.empty-desc {
  font-size: 14px;
  color: var(--text-secondary);
}


/* ============================================
   信件详情弹窗 - 专属样式
   ============================================ */
.letter-paper {
  background: white;
  border-radius: var(--radius-md);
  padding: clamp(24px, 4vh, 40px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  position: relative;
}

.letter-paper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--warm-orange), var(--warm-yellow));
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.letter-header {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px dashed rgba(255, 140, 66, 0.2);
}

.letter-stamp {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 4px 16px rgba(255, 140, 66, 0.2);
}

.letter-from {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.letter-ai-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
}

.letter-ai-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.letter-ai-gender {
  font-size: 18px;
  line-height: 1;
}

.letter-ai-gender.male {
  color: #5BA3E0;
}

.letter-ai-gender.female {
  color: #F4A6B5;
}

.letter-ai-location {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 209, 102, 0.2);
  color: var(--dark-light);
  font-weight: 500;
}

.letter-body-text {
  font-size: 15px;
  line-height: 2;
  color: var(--dark-light);
  white-space: pre-line;
}

.letter-footer {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px dashed rgba(255, 140, 66, 0.2);
  text-align: right;
  font-size: 13px;
  color: var(--text-secondary);
}

.btn {
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
}

.btn-secondary {
  background: rgba(255, 140, 66, 0.1);
  color: var(--dark-light);
}

.btn-secondary:hover {
  background: rgba(255, 140, 66, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--warm-orange), #FF6B2C);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 138, 58, 0.35);
}

/* ============================================
   聊天记录弹窗
   ============================================ */
.chat-history-modal .modal {
  max-width: 520px;
  max-height: min(600px, 85svh);
}

.chat-history-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 8px;
}

.chat-message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  max-width: 85%;
}

.chat-message.own {
  flex-direction: row-reverse;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message:not(.own) {
  align-self: flex-start;
  margin-right: auto;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  overflow: hidden;
}

.chat-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chat-message.own .chat-avatar {
  background: linear-gradient(135deg, var(--warm-orange), #FF6B2C);
}

.chat-bubble {
  max-width: 100%;
  padding: 10px 14px;
  background: white;
  border-radius: 16px 16px 16px 4px;
  font-size: 14px;
  color: var(--dark);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  line-height: 1.5;
  word-break: break-word;
}

.chat-message.own .chat-bubble {
  background: linear-gradient(135deg, var(--warm-orange), #FF6B2C);
  color: white;
  border-radius: 16px 16px 4px 16px;
}

.chat-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.chat-message.own .chat-content {
  align-items: flex-end;
}

.chat-name {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  padding: 0 4px;
}

.chat-message.own .chat-name {
  text-align: right;
}

/* ============================================
   删除确认弹窗
   ============================================ */
.delete-modal .modal {
  max-width: 420px;
  max-height: min(500px, 85svh);
}

.delete-modal .modal-body {
  padding: 32px;
  text-align: center;
}

.delete-icon {
  width: 72px;
  height: 72px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.delete-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.delete-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.delete-warning {
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 20px;
  text-align: left;
}

.delete-warning-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--error);
  margin-bottom: 4px;
}

.delete-warning-text {
  font-size: 12px;
  color: var(--dark-light);
}

.password-input {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid rgba(255, 140, 66, 0.2);
  border-radius: var(--radius-full);
  font-size: 15px;
  outline: none;
  transition: all 0.3s;
  margin-bottom: 8px;
}

.password-input:focus {
  border-color: var(--warm-orange);
  box-shadow: 0 0 0 3px rgba(255, 138, 58, 0.1);
}

#rematchTopicInput:focus {
  border-color: var(--warm-orange);
  box-shadow: 0 0 0 3px rgba(255, 138, 58, 0.1);
}

.password-input.error {
  border-color: var(--error);
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover {
  background: #DC2626;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(239, 68, 68, 0.35);
}

/* ============================================
   已匹配列表样式
   ============================================ */
.matched-section {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.matched-header {
  margin-bottom: 24px;
}

.matched-filter {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.matched-sort {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

.matched-sort select {
  padding: 8px 16px;
  border: 1.5px solid rgba(255, 140, 66, 0.2);
  border-radius: var(--radius-full);
  background: white;
  color: var(--dark);
  font-size: 14px;
  cursor: pointer;
  outline: none;
}

.matched-sort select:focus {
  border-color: var(--warm-orange);
}

.matched-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.matched-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1.5px solid rgba(255, 140, 66, 0.1);
  transition: all 0.3s ease;
}

.matched-card:hover {
  border-color: rgba(255, 140, 66, 0.3);
  box-shadow: 0 4px 20px rgba(255, 140, 66, 0.1);
  transform: translateY(-2px);
}

.matched-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.matched-card-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--warm-orange-light), var(--warm-yellow));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.matched-card-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.matched-card-info {
  flex: 1;
}

.matched-card-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.matched-card-owner {
  font-size: 14px;
  color: var(--text-secondary);
}

.matched-card-score {
  text-align: right;
}

.matched-score-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--warm-orange);
}

.matched-score-stars {
  font-size: 14px;
  color: var(--warm-yellow);
}

.matched-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.matched-card-meta .meta-gender {
  font-weight: 500;
}

.matched-card-meta .meta-location {
  color: var(--text-secondary);
}

.matched-card-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
  padding: 12px 0;
  border-top: 1px solid rgba(255, 140, 66, 0.1);
  border-bottom: 1px solid rgba(255, 140, 66, 0.1);
}

.matched-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--dark-light);
}

.matched-stat-label {
  color: var(--text-secondary);
}

.matched-stat-value {
  font-weight: 600;
  color: var(--dark);
}

.matched-email {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(255, 209, 102, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}

.matched-email-icon {
  color: var(--warm-orange);
}

.matched-email-text {
  color: var(--dark);
  font-weight: 500;
}

.matched-email-unlocked {
  margin-left: auto;
  font-size: 12px;
  color: var(--success);
}

.matched-card-actions {
  display: flex;
  gap: 12px;
}

.matched-card-actions .btn {
  flex: 1;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.matched-card-actions .btn-primary {
  background: linear-gradient(135deg, var(--warm-orange), var(--warm-orange-hover));
  color: white;
}

.matched-card-actions .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(255, 138, 58, 0.35);
}

.matched-card-actions .btn-secondary {
  background: white;
  color: var(--dark);
  border: 1.5px solid rgba(255, 140, 66, 0.3);
}

.matched-card-actions .btn-secondary:hover {
  background: rgba(255, 140, 66, 0.05);
  border-color: var(--warm-orange);
}

.matched-card-actions .btn-danger {
  background: white;
  color: var(--error);
  border: 1.5px solid rgba(239, 68, 68, 0.3);
}

.matched-card-actions .btn-danger:hover {
  background: rgba(239, 68, 68, 0.05);
  border-color: var(--error);
}

/* ============================================
   响应式适配
   ============================================ */
@media (max-width: 768px) {
  .nav {
    padding: 16px 20px;
  }
  
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 248, 240, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    z-index: 999;
    padding: 0;
    margin: 0;
    list-style: none;
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .nav-links a {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
    white-space: nowrap;
  }
  
  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
    z-index: 1001;
  }
  
  .mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s;
  }
  
  .mobile-only-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .mobile-nav-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
  }
  
  .mobile-nav-action-btn {
    padding: 12px 24px;
    font-size: 16px;
    background: rgba(255, 138, 58, 0.08);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    color: var(--dark);
    font-family: inherit;
    min-width: 180px;
    text-align: center;
  }
  
  .nav-user .badge-text {
    display: none;
  }
  
  .nav-user {
    display: none !important;
    gap: 8px;
  }
  
  .letter-badge,
  .rematch-badge {
    padding: 8px 10px;
  }
  
  .nav-user-trigger {
    padding: 8px 12px;
    gap: 6px;
  }
  
  .nav-user-name {
    display: none;
  }
  
  .nav-logo-text {
    display: none;
  }
  
  .container {
    padding: 88px 16px 24px;
  }
  
  .page-title {
    font-size: 28px;
  }
  
  /* 修复标签页按钮被挤压成竖排 */
  .tab-nav {
    gap: 8px;
    flex-wrap: nowrap;
    justify-content: center;
    margin-bottom: 24px;
    overflow: visible;
  }
  
  .tab-btn {
    padding: 10px 16px;
    font-size: 13px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  
  .match-section,
  .letters-section,
  .matched-section {
    padding: 24px;
  }
  
  .ai-select-grid {
    grid-template-columns: 1fr;
  }
  
  .letter-item {
    flex-wrap: wrap;
  }
  
  .matched-filter,
  .matched-sort {
    flex-direction: column;
    align-items: stretch;
  }
  
  .matched-sort select {
    width: 100%;
  }
  
  .matched-card-header {
    flex-wrap: wrap;
  }
  
  .matched-card-actions {
    flex-direction: column;
  }
  
  .matched-card-actions .btn {
    width: 100%;
  }
  
  .letter-meta {
    width: 100%;
    text-align: left;
    margin-top: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .modal {
    max-height: min(600px, 85svh);
    margin: 0 16px;
  }
  
  .letter-paper {
    padding: 24px;
  }
}


/* ============================================
   小高度视口弹窗安全适配
   ============================================ */
@media (max-height: 700px) {
  .matching-overlay {
    justify-content: flex-start;
    padding-top: 20px;
    padding-bottom: 20px;
  }
  
  .match-success-modal .modal,
  .delete-modal .modal,
  .chat-history-modal .modal {
    max-height: calc(100svh - 40px);
  }
}