/* 基础样式 */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1 0 auto;
}

/* 整体布局 */
.container {
  width: 1200px;
  margin: 0 auto;
}

/* 顶部导航 */
.nav {
  height: 60px;
  background: #8B0000;
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 20px;
  font-size: 18px;
}

/* banner区域 */
.banner {
  height: 500px;
  background: url('../images/banner.png') no-repeat center;
  background-size: cover;
}

/* 内容区域 */
.content {
  padding: 30px 0;
}

.title {
  text-align: center;
  font-size: 32px;
  color: #8B0000;
  margin-bottom: 30px;
}

.intro {
  line-height: 2;
  text-indent: 2em;
}

/* 页脚样式 */
.footer {
  flex-shrink: 0;
  background: #8B0000;
  color: #fff;
  padding: 20px 0;
  width: 100%;
}

.footer-content {
  width: 1200px;
  margin: 0 auto;
  text-align: center;
  font-size: 14px;
  line-height: 1.8;
}

.footer-content p {
  margin: 5px 0;
}

.footer-content a {
  color: #fff;
  text-decoration: none;
}

.footer-content a:hover {
  text-decoration: underline;
}