/**
 * 柔和流体渐变背景 - 应用于所有页面
 * 透明度30-40%，清晰可见且优雅
 */

body {
    background:
        radial-gradient(ellipse at 20% 30%, rgba(45, 212, 191, 0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(96, 165, 250, 0.35) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(167, 139, 250, 0.3) 0%, transparent 50%),
        linear-gradient(135deg, #ffffff 0%, #fafafa 50%, #f0fdfa 100%);
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2314b8a6' fill-opacity='0.08'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.7;
    pointer-events: none;
}