/* 全局样式 */
body {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei", sans-serif;
  background-color: #101014;
  color: #f2f2f2;
  line-height: 1.8;
}

/* 顶部导航栏 */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #1c1c1c;
  padding: 20px 40px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.6);
  position: sticky;
  top: 0;
  z-index: 999;
}

.site-logo {
  color: #ffcf40;
  font-size: 24px;
  font-weight: bold;
  text-shadow: 0 0 5px #d9a400;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: #ccc;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.site-nav a:hover {
  color: #ffcf40;
}

/* 顶部横幅区 */
.banner {
  background-image: url('https://img.zcool.cn/community/01be675f604b90a8012129e0f6b8e1.jpg');
  background-size: cover;
  background-position: center;
  height: 350px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
}

.banner-text {
  position: relative;
  text-align: center;
  color: #fff;
  z-index: 1;
}

.banner h1 {
  font-size: 38px;
  margin-bottom: 10px;
  text-shadow: 0 0 10px #000;
}

.banner p {
  font-size: 18px;
  color: #ddd;
}

/* 主体内容区域 */
.main-content {
  max-width: 1100px;
  margin: 50px auto;
  padding: 0 20px;
}

section {
  margin-bottom: 60px;
}

h2 {
  font-size: 24px;
  color: #ffcf40;
  border-left: 6px solid #ffcf40;
  padding-left: 10px;
  margin-bottom: 20px;
}

p {
  font-size: 16px;
  color: #ddd;
  margin-bottom: 15px;
}

/* 页脚样式 */
.site-footer {
  background-color: #1a1a1a;
  color: #888;
  text-align: center;
  padding: 20px;
  font-size: 14px;
}