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1rem;font-size:1rem;font-weight:700}.case-select-group{flex-direction:column;gap:.4rem;margin-bottom:1.1rem;display:flex}.case-select-group label{color:var(--calc-text-faded);font-size:.9rem;font-weight:600}#case-select{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);max-width:100%;padding:.65rem .85rem;font-size:.98rem}#case-select:focus{border-color:var(--calc-cyan);outline:none}.case-row{border-top:1px dashed var(--calc-border-subtle);margin-bottom:1.1rem;padding-top:.5rem}.coeff-row{flex-wrap:wrap;align-items:center;gap:.55rem;margin-bottom:.6rem;display:flex}.coeff-row:last-child{margin-bottom:0}.coeff-row__r3{align-items:center;gap:.55rem;display:inline-flex}.coeff-row__r3[hidden]{display:none}.coeff-label{font-family:var(--calc-font-mono);color:var(--calc-text-dim);flex:none;font-size:.85rem;font-weight:600}.coeff-row-title{font-family:var(--calc-font-mono);color:var(--calc-text-primary);flex:none;font-size:1.02rem;font-weight:700}.coeff-input{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);text-align:center;flex:none;width:64px;padding:.55rem .4rem;font-size:1.02rem;transition:border-color .15s,box-shadow .15s}.coeff-input:focus{border-color:var(--calc-cyan);outline:none;box-shadow:0 0 0 3px #22d3ee26}.coeff-var{font-family:var(--calc-font-mono);color:var(--calc-text-faded);flex:none;font-size:1.02rem;font-weight:600}.case-mini-select{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);padding:.5rem;font-size:.88rem}.numerator-row{margin-top:.75rem}.result-value{font-family:var(--calc-font-mono);color:var(--calc-cyan);word-break:break-word;font-size:clamp(1.4rem,4vw,2rem);font-weight:700;line-height:1.3}.result-value.result-value--partial,.result-value.result-value--idle{color:var(--calc-text-dim)}.result-detail{color:var(--calc-text-faded);word-break:break-word;margin-top:.5rem;font-size:.9rem;line-height:1.5}.interpretation{background:var(--calc-bg-glass);border:1px solid var(--calc-border-subtle);border-left:3px solid var(--calc-cyan);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);margin:0 0 1.25rem;padding:.85rem 1.1rem;font-size:.95rem;line-height:1.55}.result-cards{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.stat-result-card{background:var(--calc-bg-glass);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);text-align:center;padding:1rem}.stat-result-label{font-family:var(--calc-font-mono);text-transform:uppercase;letter-spacing:.06em;color:var(--calc-text-dim);margin-bottom:.5rem;font-size:.78rem}.stat-result-value{font-family:var(--calc-font-mono);color:var(--calc-cyan);word-break:break-word;font-size:clamp(1.3rem,4vw,1.7rem);font-weight:700;line-height:1.1}.class-flag{border-radius:999px;margin:.6rem 0 1rem;padding:.4rem .95rem;font-size:.85rem;font-weight:600;display:inline-block}.class-flag[hidden]{display:none}.class-flag--good{color:var(--calc-emerald);background:#34d39924;border:1px solid #34d39966}.class-flag--none{color:var(--calc-rose);background:#fb718524;border:1px solid #fb718566}.steps-help{color:var(--calc-text-faded);margin:-.35rem 0 1rem;font-size:.9rem;line-height:1.55}.steps-subhead{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:1.25rem 0 .75rem;font-size:.92rem;font-weight:700}.simplify-steps{flex-direction:column;gap:.7rem;margin:0;padding-left:1.3rem;display:flex}.simplify-steps li{color:var(--calc-text-primary);font-size:.95rem;line-height:1.6}.simplify-empty{color:var(--calc-text-faded);font-size:.95rem;list-style:none}.verify-line{font-family:var(--calc-font-mono);color:var(--calc-text-primary);background:var(--calc-bg-glass);border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);margin:0 0 .25rem;padding:.75rem 1rem;font-size:.95rem;line-height:1.7}.page-sections-outer{max-width:1000px;margin:0 auto;padding:0 1.5rem 3rem}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.92rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--calc-font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--calc-cyan)}.faq-item__question:hover{color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-faded);padding:0 4px 14px;font-size:.88rem;line-height:1.75}@media (width<=720px){.result-cards{grid-template-columns:1fr 1fr}}@media (width<=480px){.result-cards{grid-template-columns:1fr}.action-btn--reset{margin-left:0}.coeff-input{width:56px}}[data-theme=light] .action-btn,[data-theme=light] .input-card,[data-theme=light] .steps-card,[data-theme=light] .result-card,[data-theme=light] .const-card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .action-btn:hover{color:#0891b2;border-color:#0891b2}[data-theme=light] #case-select,[data-theme=light] .coeff-input,[data-theme=light] .case-mini-select{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] #case-select:focus,[data-theme=light] .coeff-input:focus{border-color:#0891b2;box-shadow:0 0 0 3px #0891b226}[data-theme=light] .case-row{border-top-color:#0000001a}[data-theme=light] .coeff-label{color:#475569}[data-theme=light] .coeff-row-title{color:#0f172a}[data-theme=light] .coeff-var{color:#475569}[data-theme=light] .mode-tab.active{color:#0891b2;background:#fff;border-color:#0000001f #0000001f #0000}[data-theme=light] .result-value,[data-theme=light] .stat-result-value{color:#0891b2}[data-theme=light] .stat-result-card{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .interpretation{color:#0f172a;background:#eff9fb;border-color:#00000014 #00000014 #00000014 #0891b2}[data-theme=light] .class-flag--good{color:#047857;background:#ecfdf5;border-color:#04785759}[data-theme=light] .class-flag--none{color:#e11d48;background:#fff1f2;border-color:#e11d4859}[data-theme=light] .verify-line{color:#0f172a;background:#f0f4f9;border-color:#0000001a}[data-theme=light] .steps-subhead,[data-theme=light] .simplify-steps li{color:#0f172a}[data-theme=light] .simplify-empty{color:#475569}[data-theme=light] .faq-item__question{color:#0f172a}[data-theme=light] .faq-item__question:hover,[data-theme=light] .faq-item[open] .faq-item__question:after{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569}