/* =========================
   about.css
   ========================= */

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 页面整体 */
body {
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: #000;

  /* 背景图 */
  background-image: url("../images/background.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

/* 内容区域（让文字不贴边） */
.about-container {
  padding: 120px 140px;
  max-width: 1200px;
}

/* 标题 */
h1 {
  font-size: 64px;          /* 大而清晰 */
  font-weight: 500;         /* 比 normal 饱满 */
  margin-bottom: 40px;
}

/* 正文段落 */
p {
  font-size: 26px;          /* 明显比之前大 */
  line-height: 1.9;         /* 舒适阅读 */
  max-width: 900px;
  margin-bottom: 48px;
}

/* Back to Home 按钮 */
.back-home {
  display: inline-block;

  font-size: 20px;
  font-weight: 500;

  color: #000;
  text-decoration: none;

  border: 2px solid #000;
  padding: 12px 22px;
  background: #fff;

  transition: all 0.25s ease;
}

.back-home:hover {
  background: #000;
  color: #fff;
}