* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
  color: #fff;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
}

.container {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 30px;
  max-width: 500px;
  width: 100%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

h1, h2, h3 {
  color: #fff;
  margin-bottom: 15px;
}

p {
  margin-bottom: 15px;
  line-height: 1.6;
}

input {
  padding: 12px;
  width: 80%;
  max-width: 300px;
  border: none;
  border-radius: 8px;
  margin: 10px 0;
  font-size: 16px;
  text-align: center;
}

button {
  background: #ff6b6b;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
  margin: 10px 0;
  transition: 0.3s;
}

button:hover {
  background: #ff5252;
  transform: translateY(-2px);
}

.feedback {
  margin-top: 15px;
  font-weight: bold;
  min-height: 24px;
}

.gift {
  margin: 20px 0;
  padding: 15px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
}

.video-section {
  margin-top: 20px;
}

a {
  color: #fff;
  text-decoration: underline;
}
.photo {
  width: 80%;           /* 图片宽度占容器的80% */
  max-width: 500px;     /* 最大不超过500px */
  height: auto;         /* 保持宽高比，防止变形 */
  border-radius: 16px;
  margin: 20px auto;    /* 居中，并上下留空 */
  display: block;       /* 防止文字环绕 */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}