/* CSS重置和基础样式 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  width: 100%;
  min-height: 100vh;
  font: 16px/1.5 'Microsoft YaHei', 'Heiti SC', Tahoma, Arial, 'Hiragino Sans GB', 'WenQuanYi Micro Hei', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

/* 重置常用元素样式 */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.5em 0;
  font-weight: 600;
  line-height: 1.2;
}

p {
  margin: 0 0 1em 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #fe304c;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* 辅助类 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 响应式断点 */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 12px;
  }
}