:root {
    --cirno-bg: #eefbff;
    --ice-crystal: #00d2ff;
    --ice-deep: #3a7bd5;
    --frozen-text: #1a365d;
    --white: #ffffff;
    --shadow: rgba(0, 210, 255, 0.2);
}

body {
    background: radial-gradient(circle at 50% 50%, #ffffff 0%, #dcf4ff 100%);
    color: var(--frozen-text);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    min-height: 100vh;
}