.calc{margin:10px 0 30px;padding:24px;border:1px solid #dbe4ed;border-radius:12px;background:#f8fbfe}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px 20px}
.calc label{display:block;font-size:.93rem;font-weight:700;color:#132332;margin-bottom:6px}
.calc label small{font-weight:400;color:#6e7b87}
.calc input[type=number],.calc input[type=text],.calc select,.calc textarea{width:100%;padding:10px 12px;border:1px solid #ced7e0;border-radius:7px;background:#fff;font:inherit;font-size:1rem;color:#20252a}
.calc textarea{min-height:76px;resize:vertical}
.calc input:focus,.calc select:focus,.calc textarea:focus{outline:2px solid #1e73be;outline-offset:1px;border-color:#1e73be}
.calc-check{display:flex!important;align-items:center;gap:10px;font-weight:700;padding-top:30px;cursor:pointer}
.calc-check input{width:20px;height:20px;accent-color:#1e73be}
.calc-actions{margin-top:20px}
.calc-actions button{border:0;border-radius:7px;background:#1e73be;color:#fff;padding:12px 22px;font:inherit;font-weight:700;cursor:pointer}
.calc-actions button:hover{background:#185f9d}
.calc-full{grid-column:1/-1}
.calc-result{scroll-margin-top:20px}
.calc-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:0 0 24px}
.calc-card{padding:16px 18px;border:1px solid #e0e7ed;border-radius:10px;background:#fff}
.calc-card--accent{background:#edf5fc;border-color:#b9d6ef}
.calc-card__label{font-size:.88rem;color:#586571;line-height:1.35;margin-bottom:6px}
.calc-card__value{font-size:1.3rem;font-weight:700;color:#132332;line-height:1.3;word-break:break-word}
.calc-chart{margin:0 0 26px}
.calc-chart__box{position:relative}
.calc-chart svg{display:block;width:100%;height:auto;background:#fff;border:1px solid #e0e7ed;border-radius:10px;touch-action:pan-y}
.calc-chart svg text{font:12px Arial,sans-serif;fill:#6e7b87}
.calc-chart svg .grid{stroke:#e8edf2;stroke-width:1}
.calc-chart svg .cursor{stroke:#132332;stroke-width:1;opacity:.35}
.calc-legend{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.9rem;margin-bottom:10px;color:#3a4651}
.calc-legend i,.calc-tip i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.calc-tip{position:absolute;top:10px;z-index:2;min-width:180px;padding:10px 12px;background:#fff;border:1px solid #dbe4ed;border-radius:8px;box-shadow:0 8px 25px #13233222;font-size:.86rem;line-height:1.5;pointer-events:none}
.calc-result details{margin:0 0 20px}
.calc-result summary{cursor:pointer;font-weight:700;color:#1e73be;padding:6px 0}
.calc-result table{font-size:.93rem}
.calc-result td{white-space:nowrap}
.calc-note{padding:13px 18px;border-left:4px solid #b9c6d3;background:#f5f7f9;font-size:.93rem;color:#4a5560}
.formula{display:block;padding:12px 16px;margin:0 0 20px;background:#f2f5f8;border-radius:8px;font-family:Consolas,Menlo,monospace;font-size:.95rem;overflow-x:auto;white-space:nowrap}
.calc-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin:10px 0 30px}
.calc-links a{display:block;padding:20px;border:1px solid #e0e7ed;border-radius:10px;text-decoration:none;background:#fff}
.calc-links a:hover{border-color:#1e73be}
.calc-links b{display:block;font-size:1.15rem;color:#132332;margin-bottom:8px}
.calc-links span{display:block;font-size:.95rem;color:#586571;line-height:1.5}
.breadcrumbs{font-size:.9rem;color:#78838b;margin-bottom:12px}
.breadcrumbs a{text-decoration:none}
.faq h3{font-size:1.12rem;margin:22px 0 10px}
@media(max-width:600px){.calc{padding:16px}.calc-card__value{font-size:1.15rem}.calc-check{padding-top:0}}