/* 主样式文件 - 导入所有模块 */
@import 'variables.css';
@import 'reset.css';
@import 'iconfont.css';
@import 'layout.css';
@import 'banner.css';
@import 'notice.css';
@import 'service.css';
@import 'teacher.css';
@import 'tabbar.css';
@import 'animations.css';
@import 'modal.css';

/* 页面特定样式 */
.page-wrapper {
  background-color: var(--bg-gray);
}

/* 加载状态 */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl) * 2;
  color: var(--text-light);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state-text {
  font-size: 14px;
}

/* 分割线 */
.divider {
  height: 8px;
  background-color: var(--bg-gray);
}

/* 更多按钮 */
.more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  color: var(--text-light);
  font-size: 13px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.more-btn:hover {
  color: var(--primary-color);
}

.more-btn svg {
  width: 16px;
  height: 16px;
  margin-left: 4px;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  right: 16px;
  bottom: calc(var(--tabbar-height) + 20px + var(--safe-area-bottom));
  width: 44px;
  height: 44px;
  background-color: var(--bg-white);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  z-index: 99;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
}

.back-to-top:active {
  transform: scale(0.95);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Toast 提示 */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background-color: rgba(0, 0, 0, 0.75);
  color: var(--text-white);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-size: 14px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

/* 遮罩层 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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


/* 二维码弹窗 */
.qrcode-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 300;
  display: none;
}

.qrcode-modal.show {
  display: block;
}

.qrcode-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  animation: zoomIn 0.3s ease;
}

.qrcode-content .modal-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.qrcode-content .modal-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.qrcode-content .modal-close {
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  line-height: 1;
}

.qrcode-content .modal-body {
  padding: var(--spacing-xl);
  text-align: center;
}

.qrcode-box {
  display: inline-block;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-white);
}

.qrcode-tip {
  margin-top: var(--spacing-md);
  font-size: 13px;
  color: var(--text-light);
}

.qrcode-loading {
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 14px;
}

.qrcode-empty {
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 14px;
  text-align: center;
  padding: var(--spacing-md);
}

.contact-phone {
  margin-top: var(--spacing-md);
  font-size: 14px;
  color: var(--text-secondary);
  display: none;
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}