:root{--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--danger-dark: #b91c1c;--danger-soft: #fee2e2;--success-soft: #dcfce7;--warning-soft: #fff7ed;--bg: #f3f6fb;--card: #ffffff;--border: #e5eaf2;--text: #13233f;--muted: #64748b;--shadow: 0 12px 30px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html{min-width:320px;background:var(--bg)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Arial,sans-serif;color:var(--text);background:var(--bg)}button,input,select,textarea{font-family:inherit}button{cursor:pointer;border:none;border-radius:13px;min-height:42px;padding:0 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