* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: kaiti;
  color: white;
  background-image: url("../images/bg.jpg");
  background-size: cover;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000; /* 添加高z-index值确保导航栏始终在最上层 */
}
nav ul {
  list-style-type: none;
  display: flex;
  justify-content: center;
  padding: 10px 0;
}
#title a {
  color: white;
  font-size: 24px;
  text-decoration: none;
}
#title a:hover {
  color: blueviolet;
}
nav ul li {
  margin: 0 15px;
}
nav ul li a {
  color: white;
  text-decoration: none;
  font-size: 18px;
}
nav ul li a:hover {
  color: blueviolet;
}
main {
  margin-top: 80px;
  flex: 1;
}
.container {
  position: relative;
  text-align: center;
}
.container h1 {
  font-size: 80px;
  margin-bottom: 10px;
}
.container p {
  font-size: 30px;
}
footer {
  width: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.3));
  text-align: center;
  padding: 20px 0;
  box-shadow: 0 -2px 10px rgba(255, 255, 255, 0.1);
  margin-top: 50px;
}

.footer-content {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.footer-about,
.footer-links,
.footer-saying {
  flex: 1;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}
footer h2 {
  font-size: 22px;
  margin-bottom: 15px;
  position: relative;
  padding-bottom: 8px;
}

footer h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 2px;
  background: linear-gradient(to right, #6a11cb, #2575fc);
}

.footer-about p,
.footer-content,
.footer-saying p {
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 20px;
}

.footer-saying {
  border-right: none;
}

/*去掉ul前面的小圆点*/
.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a {
  text-decoration: none;
}
.footer-links ul li a,
a:visited,
a:link,
a:hover {
  color: white;
}

.footer-links ul li a:hover {
  color: red;
  padding-left: 5px;
}
.footer-about p {
  margin-bottom: 20px;
}
.contact span {
  display: block;
  margin-bottom: 10px;
}
.socials a {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  border-radius: 50%;
  margin-right: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
}
.socials a:hover {
  background: linear-gradient(to right, #6a11cb, #2575fc);
  transform: translateY(-3px);
}

.footer-saying button {
  width: 80%;
  padding: 12px;
  background: linear-gradient(to right, #6a11cb, #2575fc);
  color: white;
  cursor: pointer;
  border-radius: 50px;
  margin: 25px 0;
}

.footer-saying button:hover {
  transform: translateY(-2px);
  background: linear-gradient(to right, rgb(239, 109, 3), rgb(255, 4, 0));
}