.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}.page-subtitle{color:var(--calc-text-dim);max-width:72ch;margin:0;font-size:1rem;line-height:1.6}.calc-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:24px;display:grid}@media (width<=1024px){.calc-grid{grid-template-columns:1fr}}.field-hint{color:var(--calc-text-dim);margin:6px 0 0;font-size:.78rem;line-height:1.5}.card-title+.field-hint{margin:-4px 0 14px}.form-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}@media (width<=560px){.form-row{grid-template-columns:1fr}}.unit-toggle{border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);background:#ffffff08;gap:4px;margin:4px 0 16px;padding:4px;display:inline-flex}.unit-btn{color:var(--calc-text-dim);border-radius:calc(var(--calc-radius-md) - 2px);cursor:pointer;background:0 0;border:none;padding:6px 14px;font-size:.82rem;font-weight:600;transition:background-color .15s,color .15s}.unit-btn.active{background:var(--calc-cyan);color:#0a0e1a}.interp-panel{border:1px solid #22d3ee38;border-left:3px solid var(--calc-cyan);border-radius:var(--calc-radius-md);background:#22d3ee0f;margin-top:14px;padding:14px 16px}.interp-text{color:var(--calc-text-faded);margin:0;font-size:.9rem;line-height:1.65}.breakdown-grid{flex-direction:column;gap:14px;margin:4px 0 16px;display:flex}.breakdown-row{grid-template-columns:150px 1fr 90px;align-items:center;gap:12px;display:grid}@media (width<=560px){.breakdown-row{grid-template-columns:100px 1fr 76px}}.breakdown-name{color:var(--calc-text-primary);font-size:.85rem;font-weight:600}.breakdown-bar-track{background:#ffffff0d;border-radius:999px;height:14px;overflow:hidden}.breakdown-bar{background:var(--calc-cyan);border-radius:999px;width:0%;height:100%;transition:width .25s}.breakdown-row[data-row=chamber] .breakdown-bar{background:var(--calc-purple)}.breakdown-row[data-row=gasket] .breakdown-bar{background:var(--calc-gold)}.breakdown-row[data-row=dishdome] .breakdown-bar{background:var(--calc-emerald)}.breakdown-val{font-family:var(--calc-font-mono);color:var(--calc-text-dim);text-align:right;font-size:.85rem}.breakdown-total{color:var(--calc-text-dim);border-top:1px solid var(--calc-border-subtle);padding-top:6px;font-size:.85rem;line-height:1.6}.sensitivity-table-wrap{overflow-x:auto}.sensitivity-table{border-collapse:collapse;width:100%;font-size:.85rem}.sensitivity-table th,.sensitivity-table td{text-align:left;border-bottom:1px solid var(--calc-border-subtle);padding:10px 12px}.sensitivity-table th{color:var(--calc-text-dim);text-transform:uppercase;letter-spacing:.04em;font-size:.72rem;font-weight:600}.sensitivity-table td{color:var(--calc-text-primary);font-family:var(--calc-font-mono)}.sensitivity-table td:first-child{font-family:var(--calc-font-headline)}.sensitivity-current{background:#22d3ee0f}.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;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}.faq-item[open] .faq-item__question:after{content:"−";color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.86rem;line-height:1.75}[data-theme=light] .page-subtitle{color:#475569}[data-theme=light] .field-hint{color:#64748b}[data-theme=light] .unit-toggle{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .unit-btn{color:#475569}[data-theme=light] .unit-btn.active{color:#fff;background:#0891b2}[data-theme=light] .interp-panel{background:#eff9fb;border-color:#0891b24d #0891b24d #0891b24d #0891b2}[data-theme=light] .interp-text{color:#334155}[data-theme=light] .breakdown-name{color:#0f172a}[data-theme=light] .breakdown-bar-track{background:#f0f4f9;border:1px solid #00000014}[data-theme=light] .breakdown-val{color:#475569}[data-theme=light] .breakdown-total{color:#475569;border-top-color:#0000001a}[data-theme=light] .sensitivity-table th{color:#64748b}[data-theme=light] .sensitivity-table td{color:#0f172a;border-bottom-color:#00000014}[data-theme=light] .sensitivity-current{background:#eff9fb}[data-theme=light] .faq-item__question{color:#0f172a}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569}@media print{.action-bar,.tab-bar,.glass-navbar,.calc-back-to-top,.nav-toggle{display:none}}