/* 背景图片 */
body {
  background-image: url("../assets/images/backgrounds/bg.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  /* 或者 'cover'，根据需要调整 */
  background-attachment: fixed;

  background:
    /* 主背景图片 */ url("../assets/images/backgrounds/bg.jpg")
      center/contain no-repeat fixed,
    /* 羽化边缘 */
      radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 65%,
        #d1ecfb 85%,
        #b2dff9 100%
      )
      fixed,
    /* 底色 */ #93d2f7 fixed;
}

/* 毛玻璃效果 */
.glass-effect {
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.fullscreen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.3);
  z-index: -1;
  pointer-events: none;
  /* 允许点击穿透 */
}