@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400&display=swap');

:root {
  --color-primary: #333333;
  --color-secondary: #999999;
  --color-accent: #C0A080;
  --color-background: #F9F9F9;
  --font-family: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-primary);
  line-height: 1.6;
}

/* 导航悬停效果 */
.nav-link {
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link:hover::after {
  width: 100%;
}

/* 图片悬停效果 */
.image-hover {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.image-hover:hover {
  transform: scale(1.02);
  opacity: 0.95;
}

/* 页脚样式 */
footer {
  text-align: center;
  color: var(--color-secondary);
  font-size: 0.875rem;
  padding: 2rem 0;
}

/* 响应式网格 */
.grid-auto {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* 页面标题样式 */
.page-title {
  font-weight: 300;
  font-size: 2.5rem;
  text-align: center;
  margin: 3rem 0;
  color: var(--color-primary);
}

/* 留白布局 */
.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  margin-bottom: 4rem;
}