/* 粒子画布样式 - Windows蓝色主题 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: #000000; /* 黑色背景 */
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 120, 212, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, rgba(80, 230, 255, 0.1) 0%, transparent 20%);
    z-index: -1;
    overflow: hidden;
}

/* 登录页粒子背景 */
.login-container #particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000000;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 120, 212, 0.15) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, rgba(80, 230, 255, 0.15) 0%, transparent 20%);
}