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14px;border:1px solid #dee2e6;background:#f8f9fa;border-radius:4px;cursor:pointer;font-size:13px;color:#495057;transition:all .2s}.sub-tab[data-v-b69c4673]:hover{border-color:#007bff;color:#007bff}.sub-tab.active[data-v-b69c4673]{background:#e7f1ff;color:#007bff;border-color:#007bff;font-weight:600}.calc-form[data-v-b69c4673]{display:flex;flex-direction:column;gap:12px}.input-row[data-v-b69c4673]{display:flex;align-items:center;gap:12px}.input-row label[data-v-b69c4673]{min-width:80px;font-size:14px;font-weight:500;color:#333;text-align:right}.input-group[data-v-b69c4673]{display:flex;align-items:center;flex:1;max-width:400px;border:1px solid #dee2e6;border-radius:6px;overflow:hidden;background:#fff;transition:border-color .2s}.input-group[data-v-b69c4673]:focus-within{border-color:#007bff;box-shadow:0 0 0 3px #007bff1a}.input-prefix[data-v-b69c4673],.input-suffix[data-v-b69c4673]{padding:0 10px;font-size:13px;color:#6c757d;background:#f8f9fa;white-space:nowrap;height:38px;display:flex;align-items:center}.input-prefix[data-v-b69c4673]{border-right:1px solid #dee2e6}.input-suffix[data-v-b69c4673]{border-left:1px solid #dee2e6}.input-group input[data-v-b69c4673]{flex:1;border:none;padding:9px 12px;font-size:14px;outline:none;min-width:0;background:transparent}.input-group input[data-v-b69c4673]::-moz-placeholder{color:#adb5bd}.input-group input[data-v-b69c4673]::placeholder{color:#adb5bd}.calc-symbol[data-v-b69c4673]{text-align:center;font-size:15px;font-weight:600;color:#007bff;padding:2px 0}.radio-row[data-v-b69c4673]{display:flex;gap:20px;padding-left:92px}.radio-item[data-v-b69c4673]{display:flex;align-items:center;gap:6px;font-size:14px;color:#495057;cursor:pointer}.calc-result[data-v-b69c4673]{background:#f0f7ff;border:1px solid #b6d7ff;border-radius:8px;padding:16px;margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}.result-formula[data-v-b69c4673]{font-size:14px;color:#495057}.result-value[data-v-b69c4673]{font-size:22px;font-weight:700;color:#007bff}.result-value.price[data-v-b69c4673]{color:#e74c3c}.result-value.saved[data-v-b69c4673],.result-value.positive[data-v-b69c4673]{color:#28a745}.result-value.negative[data-v-b69c4673]{color:#e74c3c}.result-detail[data-v-b69c4673]{font-size:13px;color:#6c757d}.btn-copy[data-v-b69c4673]{background:#28a745;color:#fff;border:none;padding:5px 12px;border-radius:4px;cursor:pointer;font-size:13px;margin-left:auto;transition:background .2s}.btn-copy[data-v-b69c4673]:hover{background:#218838}.result-line[data-v-b69c4673]{display:flex;align-items:center;gap:10px;width:100%;padding:4px 0}.result-line .result-label[data-v-b69c4673]{font-size:14px;color:#6c757d;min-width:100px}.result-line .result-value[data-v-b69c4673]{font-size:18px}.result-line .btn-copy[data-v-b69c4673]{margin-left:auto}.discount-quick-btns[data-v-b69c4673],.tip-quick-btns[data-v-b69c4673]{display:flex;gap:6px;flex-wrap:wrap;padding-left:92px}.quick-btn[data-v-b69c4673]{padding:5px 12px;border:1px solid #dee2e6;background:#fff;border-radius:20px;cursor:pointer;font-size:12px;color:#495057;transition:all .2s}.quick-btn[data-v-b69c4673]:hover{border-color:#007bff;color:#007bff}.quick-btn.active[data-v-b69c4673]{background:#007bff;color:#fff;border-color:#007bff}.usage-guide[data-v-b69c4673]{background:#f8f9fa;border-radius:12px;padding:1.5rem;margin-top:2rem;border:1px solid #e9ecef}.usage-guide h3[data-v-b69c4673]{margin-top:0;color:#007bff}.guide-grid[data-v-b69c4673]{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.guide-grid h4[data-v-b69c4673]{color:#495057;margin-bottom:.75rem}.guide-grid ul[data-v-b69c4673]{margin:0;padding-left:1.5rem;color:#6c757d}.guide-grid li[data-v-b69c4673]{margin-bottom:.3rem}@media(max-width:640px){.input-row[data-v-b69c4673]{flex-direction:column;align-items:stretch;gap:4px}.input-row label[data-v-b69c4673]{text-align:left;min-width:auto}.input-group[data-v-b69c4673]{max-width:100%}.radio-row[data-v-b69c4673],.discount-quick-btns[data-v-b69c4673],.tip-quick-btns[data-v-b69c4673]{padding-left:0}.calc-result[data-v-b69c4673]{flex-direction:column;align-items:flex-start}.btn-copy[data-v-b69c4673]{margin-left:0}.mode-tabs[data-v-b69c4673]{gap:4px}.tab-btn[data-v-b69c4673]{padding:6px 12px;font-size:13px}}