* {
    text-autospace: normal;
}

/* 全局字体与基础色彩 */
body {
  font-family: "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #181818;
  background: #fafbfc;
  font-size: 1.08rem; /* 约17px */
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 链接样式 */
a {
  color: #d7263d;
  text-decoration: none;
  transition: color 0.2s;
}
a:hover, a:focus {
  color: #a81c2a;
  text-decoration: underline;
}

/* 文章卡片与正文最大宽度 */
.article, .main-content {
  border: 1px solid #eee;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* LOGO与品牌色 */
.xhh-logo-club {
  background: #d7263d;
  color: #fff;
  writing-mode: vertical-rl;
  border-radius: 6px;
  margin: 0 0 12px 0;
  padding: 4px 2px;
  font-size: 0.9rem;
  opacity: 0.92;
  line-height: 1.1;
}
.xhh-logo {
  font-size: 2rem;
  color: #d7263d;
  margin-bottom: 0;
  font-weight: bold;
}
.xhh-slogan {
  font-size: 1.1rem;
  color: #a81c2a;
}

/* 导航链接 */
.nav-link2 {
  color: #fff;
  background: #d7263d;
  border-radius: 4px;
  padding: 0.3em 1em;
  margin: 0 0.2em;
  transition: background 0.2s;
}
.nav-link2:hover, .nav-link2.active {
  background: #a81c2a;
  color: #fff;
}

/* 标题与排版 */
h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1em;
}
h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.8em;
  color: #d7263d;
}
h4 {
  opacity: 0.85;
  margin-bottom: 0.6rem;
  font-size: 1.1rem;
}
.h5 {
  opacity: 0.7;
  font-size: 1rem;
}
p {
  margin-bottom: 1.2em;
  line-height: 1.8;
}
small, .small {
  font-size: 0.85em;
}

/* 居中工具类 */
.all-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 代码块与引用 */
pre, code, blockquote {
  background: #f6f8fa;
  border-radius: 6px;
  padding: 1em;
  border: 1px solid #eee;
  font-size: 1em;
  margin-bottom: 1.2em;
}
pre {
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* 图片自适应 */
img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1em auto;
}

/* 其它辅助类 */
.extend_height {
  min-height: 200px;
}

/* 响应式优化 */
@media (max-width: 1024px) {
  body {
    font-size: 1.02rem;
  }
  .article, main, .main-content {
    padding: 1.2em 1em;
    max-width: 96vw;
  }
  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.2rem;
  }
}
@media (max-width: 768px) {
  body {
    font-size: 1rem;
  }
  .article, main, .main-content {
    padding: 1em 0.5em;
    max-width: 100%;
  }
  h1 {
    font-size: 1.3rem;
  }
  h2 {
    font-size: 1.1rem;
  }
}