/* 与 739.lv 一致的纯白背景 */
html,
body {
    background: #ffffff !important;
    background-color: #ffffff !important;
    background-image: none !important;
}

/* 隐藏常见的动态粒子背景层 */
#particles-js,
#particle-js,
#particles,
#canvas,
#bg-canvas,
#background-canvas,
.particles-js-canvas-el,
.particle-background,
.particles-background,
.animated-background,
.animation-background,
.bg-animation,
.background-animation,
.star-background,
.stars,
.fireworks,
body > canvas {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

/* 移除由 body 伪元素生成的动态背景 */
body::before,
body::after {
    background: none !important;
    background-image: none !important;
    animation: none !important;
}

/* 保证主要页面区域为白色 */
.page,
.page-container,
.container,
.main,
.main-container,
.content,
.content-container,
.wrapper,
.app,
#app {
    background-color: #ffffff !important;
    background-image: none !important;
}