:root {
    --c-primary: #4a7db8; --c-primary-light: #6ba8d9; --c-primary-lighter: #e8f2ff; 
    --c-secondary: #ff9bb3; --c-secondary-light: #ffebf0; --c-secondary-dark: #d45d7d; 
    --c-text-light: #666; --c-white: #fff; --c-background: #f6faff;
}
* {
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    font-family: 'Microsoft YaHei', sans-serif;
}
body {
    font-size: 16px; 
    min-height: 100vh; 
    overflow-y: scroll; 
    display: flex; 
    flex-direction: column;
    overflow-y: scroll;
}