:root {
    --primary-color: #165DFF;
    --primary-light: #40a9ff;
    --primary-dark: #096dd9;
    
    --success-color: #00B42A;
    --warning-color: #FF7D00;
    --error-color: #f5222d;
    --info-color: #13c2c2;
    
    --text-color: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    
    --bg-color: #f5f7fa;
    --bg-light: #ffffff;
    --bg-dark: #e8e8e8;
    --bg-primary: #ffffff;
    --bg-tertiary: #f0f0f0;
    
    --border-color: #e8e8e8;
    --border-light: #f0f0f0;
    
    --card-bg: #ffffff;
    
    --font-family-base: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-2xl: 24px;
    
    --spacing-xxs: 2px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    --transition-fast: 0.15s;
    --transition-base: 0.3s;
    
    --z-index-modal: 1000;
    --z-index-dropdown: 100;
    --z-index-fixed: 10;
}

[data-theme="dark"] {
    --text-color: #f3f4f6;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;

    --bg-color: #0f172a;
    --bg-light: #1e293b;
    --bg-dark: #334155;
    --bg-primary: #1e293b;
    --bg-tertiary: #334155;

    --border-color: #475569;
    --border-light: #64748b;

    --card-bg: #1e293b;
    --container-bg: #1e293b;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);

    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --error-color: #f87171;
    --info-color: #22d3ee;
}



* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.5;
    padding: 0;
    /* 禁用字体抗锯齿以获得更清晰的截图效果 */
    /* -webkit-font-smoothing: antialiased; */
    /* -moz-osx-font-smoothing: grayscale; */
    -webkit-font-smoothing: subpixel-antialiased;
    text-rendering: optimizeLegibility;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
}