:root{--primary: #1890FF;--primary-hover: #40A9FF;--primary-light: #E6F7FF;--bg: #f5f5f5;--bg-card: #ffffff;--text: #1f1f1f;--text-muted: #666666;--border: #e5e5e5;--error: #FF4D4F;--error-bg: #FFF2F0;--warning: #faad14;--warning-bg: #fffbe6;--success: #52c41a;--success-bg: #f6ffed}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Helvetica Neue,sans-serif;color:var(--text);line-height:1.6}.btn{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}.btn-primary{background:var(--primary);border:1px solid var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.btn-cancel{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-cancel:hover{background:var(--bg)}.btn-danger{background:var(--error);border:1px solid 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