/* 全局样式 */
body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f8f8f8;
  color: #333;
}

/* 导航栏样式 */
nav {
  background-color: #fff;
  border-bottom: 1px solid #ddd;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
}

nav .logo a {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-decoration: none;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

h1 {
  line-height: 0.5em; /* 将文本行距设置为2倍的字体大小 */
}

p {
  line-height: 0.5; /* 将文本行距设置为当前字体大小的1.5倍 */
}

nav ul li {
  margin-right: 20px;
}

nav ul li a {
  color: #333;
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
}

nav ul li a:hover {
  color: #08c;
}

/* 主要内容区域样式 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.cent {
  text-align: center;
}

.container h1 {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  padding: 50px;
}

.container p {
  font-size: 24px;
  margin-bottom: 30px;
  padding: 10px;
}

.btn {
  display: inline-block;
  background-color: rgb(255, 225, 0);
  color: #fff;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 5px;
  font-size: 18px;
}

.btn2 {
  display: inline-block;
  background-color: rgb(255, 213, 0);
  color: #000000;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 18px;
}

.btn:hover {
  background-color: #ffca1d;
}

body {
  background-image: url("background.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-attachment: fixed;
}

.footer {
  background-color: #f5f5f5;
  padding: 50px 0;
  color: #777;
  text-align: left;
}

.footer p {
  vertical-align: top;
  }

.social-icons {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: flex-end;
}

.social-icons li {
  margin-right: 15px;
}

.social-icons a {
  color: #777;
  text-decoration: none;
}

.social-icons a:hover {
  color: #333;
}

.container2 {
  max-width: 1200px;
  margin: 0 auto;
  text-align: left;
  padding: 50px;
}

.container2 p {
  line-height: 1.5;
  margin-bottom: 30px;
}

.underline {
  text-decoration: underline;
}

.cent h3 {
  line-height: 1.5;
}

.cent2 {
  line-height: 1.5;
  text-align: left;
  font-weight: bold;
}

.btn3 {
  display: inline-block;
  background-color: rgb(255, 225, 0);
  color: #fff;
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 9px;
}

.container {
  width: 100%;
}

.fullimg img {
  width: 100%;
  height: auto;
}

.container4 {
  text-align: center;
  padding:0 auto;
  line-height: 0;
}