/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: #333;
  background: #f5f5f5;
  height: 100%;
  overflow: hidden;
}

#app {
  height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
  background: #fff;
  position: relative;
}

/* 页面容器 */
.page {
  flex: 1;
  overflow-y: auto;
  display: none;
  padding-bottom: 60px;
}

.page.active {
  display: block;
}

/* 底部导航栏 */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  height: 56px;
  background: #fff;
  border-top: 1px solid #e8e8e8;
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 100;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  color: #999;
  cursor: pointer;
  transition: color 0.2s;
}

.tab-item.active {
  color: #1890FF;
}

.tab-icon {
  font-size: 20px;
  margin-bottom: 2px;
}

.tab-text {
  font-size: 12px;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, #1890FF 0%, #36cfc9 100%);
  color: #fff;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: #f0f0f0;
  color: #333;
}

.btn-danger {
  background: #ff4d4f;
  color: #fff;
}

/* 卡片样式 */
.card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  margin: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

/* 涨跌颜色 */
.up {
  color: #ff4d4f !important;
}

.down {
  color: #52c41a !important;
}

/* 加载状态 */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: #999;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #1890FF;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 8px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Toast提示 */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
}

/* Modal弹窗 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #fff;
  border-radius: 16px;
  width: 80%;
  max-width: 320px;
  padding: 24px;
  transform: scale(0.9);
  transition: transform 0.3s;
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 12px;
}

.modal-message {
  text-align: center;
  color: #666;
  margin-bottom: 20px;
}

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

.modal-actions .btn {
  flex: 1;
}

/* 用户信息头部 */
.user-header {
  background: linear-gradient(135deg, #1890FF 0%, #36cfc9 100%);
  padding: 20px 16px;
  color: #fff;
}

.user-info {
  display: flex;
  align-items: center;
}

.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.3);
  margin-right: 12px;
  object-fit: cover;
}

.user-meta {
  flex: 1;
}

.nickname {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.level-tag {
  display: flex;
  align-items: center;
  gap: 8px;
}

.level-text {
  background: rgba(255,255,255,0.2);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
}

.title-text {
  font-size: 14px;
  opacity: 0.9;
}

/* 响应式 */
@media (min-width: 481px) {
  #app {
    border-left: 1px solid #e8e8e8;
    border-right: 1px solid #e8e8e8;
  }
}