/* ===== 全局 ===== */
body {
  background-color: #9bb7da; /* 背景 */
  color: #874e4e;             /* 字体颜色 */
}
/* ===== 标题 ===== */
h1 {
  text-align: center;
  font-size: 28px;
  color: #8c18b0;
}
/* ===== 分割线 ===== */
hr {
  height: 1px;
  background-color: #b41717;
}
/* ===== 搜索框 ===== */
form {
  text-align: center;
}
input[type="search"] {
  width: 50%;
  padding: 10px 14px;
  font-size: 16px;
  border: 1px solid #bbbbbb;
  border-radius: 6px;
}
button {
  padding: 10px 18px;
  margin-left: 8px;
  font-size: 16px;
  border-radius: 6px;
  background-color: #4a90e2;
  color: white;
  cursor: pointer;
}
/* ===== 图片===== */
img {
  width: 100%;
  max-width: 260px;   
}
/* ===== 视频 ===== */
video {
  width: 100%;
  max-width: 260px;
  height: 260px;     /* ✅ 强制等高 */
}
img,
video {
  display: block;
  margin-left: auto;
  margin-right: auto;
}