/**
 * 基础样式
 */

/* Reset */
* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
}

/* 滚动条 */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}

.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* 消息滑入动画 */
@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-slide-in {
  animation: messageSlideIn 0.25s ease-out;
}

/* 淡入动画 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* 加载动画 */
.loading-dots {
  display: inline-flex;
  gap: 4px;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  background: #3b82f6;
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes bounce {
  0%,
  80%,
  100% {
    transform: scale(0);
  }
  40% {
    transform: scale(1);
  }
}

/* Spinner 动画 */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner--small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 移动端/桌面端显示控制 */
@media (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }

  .mobile-only {
    display: block !important;
  }
}

@media (min-width: 769px) {
  .desktop-only {
    display: block !important;
  }

  .mobile-only {
    display: none !important;
  }
}

/* iOS 安全区域支持 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .pb-safe {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* 移动端视口高度修复 */
@supports (height: 100dvh) {
  body {
    height: 100dvh;
  }
}