.coupon-calculator{max-width:1400px;margin:0 auto}@media(min-width:1100px){.coupon-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 20px;align-items:start}.coupon-form>.quick-coupons{grid-column:1 / -1}.coupon-form>.form-row{display:contents}.coupon-form>.calc-btn{grid-column:1 / -1}}.coupon-form{background:#fff;border-radius:16px;padding:32px;box-shadow:0 2px 12px #0000000f}.quick-coupons{margin-bottom:24px}.quick-coupons h3{font-size:14px;font-weight:600;color:var(--text-secondary, #666);margin:0 0 12px}.coupon-chips{display:flex;flex-wrap:wrap;gap:8px}.coupon-chip{padding:8px 16px;background:#f5f5f5;border:1px solid #e5e5e5;border-radius:20px;font-size:14px;color:var(--text-primary, #333);cursor:pointer;transition:all .2s}.coupon-chip:hover{background:#e6f7ff;border-color:#1890ff;color:#1890ff}.coupon-chip.active{background:#1890ff;border-color:#1890ff;color:#fff}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-primary, #333);margin-bottom:8px}.form-group input,.form-group select{width:100%;padding:12px 16px;border:1px solid #e5e5e5;border-radius:8px;font-size:15px;color:var(--text-primary, #333);background:#fff;transition:border-color .2s;box-sizing:border-box}.form-group input:focus,.form-group select:focus{outline:none;border-color:#eb2f96}.form-group .hint{display:block;font-size:12px;color:#999;margin-top:4px}.calc-btn{width:100%;padding:14px;background:linear-gradient(135deg,#eb2f96,#f759ab);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.calc-btn:hover{transform:translateY(-2px);box-shadow:0 4px 16px #eb2d964d}.coupon-result{margin-top:24px;background:#fff;border-radius:16px;padding:32px;box-shadow:0 2px 12px #0000000f}.coupon-result h2{font-size:18px;font-weight:600;color:var(--text-primary, #333);margin:0 0 20px}.result-card{background:#fafafa;border-radius:12px;padding:20px;margin-bottom:20px}.result-card.success{background:linear-gradient(135deg,#f6ffed,#e6fffb);border:2px solid #52c41a}.result-card.warning{background:linear-gradient(135deg,#fffbe6,#fff7e6);border:2px solid #fa8c16}.result-title{font-size:16px;font-weight:600;margin-bottom:16px}.result-card.success .result-title{color:#52c41a}.result-card.warning .result-title{color:#fa8c16}.result-detail{display:flex;flex-direction:column;gap:8px}.detail-row{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--text-secondary, #666)}.detail-row span:last-child{font-weight:600;color:var(--text-primary, #333)}.detail-row.highlight span:last-child{color:#52c41a}.detail-row.total{padding-top:8px;border-top:1px dashed #e5e5e5;font-size:16px}.detail-row.total span:last-child{font-size:18px;color:#ff4d4f}.detail-row .big{font-size:18px;color:#ff4d4f}.detail-row .warn{color:#fa8c16}.detail-row .profit,.detail-row .save{color:#52c41a}.coupon-options{display:flex;flex-direction:column;gap:12px;margin-top:16px}.coupon-option{background:#fafafa;border-radius:12px;padding:16px;border:2px solid transparent}.coupon-option.recommended{background:linear-gradient(135deg,#f6ffed,#e6fffb);border-color:#52c41a}.option-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.option-name{font-size:14px;font-weight:600;color:var(--text-primary, #333)}.option-price{font-size:14px;color:var(--text-secondary, #666);margin-bottom:12px}.option-detail{display:flex;flex-direction:column;gap:6px}.option-detail .detail-row{font-size:13px}.tag{padding:2px 8px;background:#52c41a;color:#fff;border-radius:4px;font-size:12px}.savings-summary{display:flex;justify-content:space-around;align-items:center;margin-top:24px;padding:20px;background:linear-gradient(135deg,#fff2f0,#fff7e6);border-radius:12px}.savings-item{text-align:center}.savings-label{display:block;font-size:12px;color:var(--text-secondary, #666);margin-bottom:4px}.savings-value{font-size:20px;font-weight:700;color:var(--text-primary, #333)}.savings-value.highlight{color:#ff4d4f}.coupon-tips{margin-top:24px;background:#f6ffed;padding:20px;border-radius:12px}.coupon-tips h3{font-size:14px;font-weight:600;color:#52c41a;margin:0 0 12px}.coupon-tips ul{margin:0;padding-left:20px}.coupon-tips li{font-size:13px;color:var(--text-secondary, #666);line-height:1.8}@media(max-width:768px){.form-row{grid-template-columns:1fr}.coupon-form,.coupon-result{padding:20px}}