:root{--primary: #4f6ef7;--danger: #e74c5f;--success: #34c77b;--bg: #f4f6fb;--card: #ffffff;--border: #e2e6ef;--text: #1e2a3a;--text-secondary: #6b7a8d;--shadow: 0 2px 12px rgba(0, 0, 0, .06);--radius: 10px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:20px}header{text-align:center;padding:30px 0 20px;position:relative}header h1{font-size:28px;font-weight:700;color:var(--primary)}header p{color:var(--text-secondary);margin-top:6px;font-size:14px}.github-link{display:inline-flex;align-items:center;gap:5px;margin-top:12px;padding:4px 12px;border-radius:20px;font-size:13px;color:var(--text-secondary);border:1px solid var(--border);text-decoration:none;transition:color .2s,border-color .2s,background .2s}.github-link:hover{color:var(--primary);border-color:var(--primary);background:#4f6ef70f}.toolbar{display:flex;justify-content:flex-end;margin-bottom:16px;flex-wrap:wrap}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:20px}.card-title{font-size:17px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:8px}.card-title .badge{font-size:11px;background:var(--primary);color:#fff;padding:2px 8px;border-radius:10px;font-weight:500}.card-title .icon{font-size:18px}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.form-group{display:flex;flex-direction:column;gap:4px}.form-group label{font-size:12px;color:var(--text-secondary);font-weight:500}.entry-row{display:flex;gap:10px;align-items:flex-end;margin-bottom:8px;flex-wrap:wrap;padding:10px;background:#f8f9fd;border-radius:8px}.entry-row .form-group{flex:1;min-width:120px}.multiplier-row{display:flex;gap:10px;align-items:flex-end;margin-bottom:8px;padding:10px;background:#f8f9fd;border-radius:8px;flex-wrap:wrap}.multiplier-row .form-group{flex:1;min-width:120px}.summary-box{display:flex;gap:24px;flex-wrap:wrap;margin-top:8px;margin-bottom:8px;padding:16px;background:linear-gradient(135deg,#667eea11,#764ba211);border-radius:10px}.summary-item{text-align:center;flex:1;min-width:120px}.summary-item .label{font-size:12px;color:var(--text-secondary)}.summary-item .value{font-size:22px;font-weight:700;color:var(--primary);margin-top:2px}.summary-item .value.danger{color:var(--danger)}.summary-item .value.success{color:var(--success)}.calc-action{text-align:center;margin:24px 0}.hint-text{font-size:12px;color:var(--text-secondary);margin-bottom:10px}.empty-hint{text-align:center;color:var(--text-secondary);padding:30px;font-size:14px}.paste-area{margin-bottom:12px;padding:12px;background:#f8f9fd;border-radius:8px;border:1px dashed var(--border)}.paste-area code{background:#e8ecf4;padding:1px 6px;border-radius:4px;font-size:12px}.row-offset td{background:#fff8e1!important}@media(max-width:768px){.container{padding:12px}header h1{font-size:22px}.entry-row,.multiplier-row{flex-direction:column;align-items:stretch}.entry-row .form-group,.multiplier-row .form-group{min-width:100%}.summary-box{flex-direction:column}.toolbar{justify-content:center}}