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0}.step-row{display:flex;gap:14px;align-items:flex-start}.step-n{min-width:28px;height:28px;border-radius:8px;background:var(--accent);color:#fff;font-size:.9rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.step-body{flex:1 1}.step-title{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:4px}.step-desc{font-size:.95rem;color:var(--text-soft);line-height:1.65}.calc-step-cards{display:flex;flex-direction:column;gap:12px;margin:20px 0}.csc{border:1px solid var(--line);border-radius:12px;padding:16px 20px;gap:14px;background:var(--surface);overflow:hidden}.csc,.csc-n{display:flex}.csc-n{min-width:32px;height:32px;border-radius:8px;background:#eaf3de;color:var(--primary);font-size:1rem;font-weight:800;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.csc-title{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:8px}.csc-code{background:#f9f9f9;border-radius:6px;padding:10px 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tr:last-child td{border-bottom:none}.data-table td.red{color:var(--accent);font-weight:600}.tips-list{margin:16px 0;display:flex;flex-direction:column;gap:16px}.tip-row{display:flex;gap:14px;align-items:flex-start}.tip-icon{min-width:36px;height:36px;border-radius:10px;background:#f9f9f9;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.tip-content{flex:1 1}.tip-title{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:4px}.tip-text{font-size:1rem;color:var(--text-soft);line-height:1.75}.faq-list{margin:16px 0}.faq-item{padding:16px 0;border-bottom:1px solid var(--line);cursor:pointer}.faq-item:last-child{border-bottom:none}.faq-q{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:0;display:flex;align-items:flex-start;gap:10px;position:relative;padding-right:32px;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:margin-bottom .2s ease}.faq-q:after{content:"";position:absolute;right:4px;top:8px;width:8px;height:8px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg);transition:transform .2s ease}.faq-badge{min-width:24px;height:24px;border-radius:6px;background:#fef0ef;color:var(--accent);font-size:.8rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.faq-a{font-size:1rem;color:var(--text-soft);line-height:1.78;padding-left:34px;display:none;animation:faqFadeIn .3s ease;margin-top:8px}.faq-item.is-open .faq-q{margin-bottom:8px}.faq-item.is-open .faq-q:after{transform:rotate(-135deg);top:12px}.faq-item.is-open .faq-a{display:block}@keyframes faqFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.scroll-top-btn{position:fixed;bottom:24px;right:24px;z-index:99;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.15);transition:transform .2s ease,background .2s ease}.scroll-top-btn:hover{background:var(--primary-dark);transform:translateY(-2px)}@media (max-width:480px){.scroll-top-btn{bottom:16px;right:16px;width:40px;height:40px}}.related-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.rel-pill{padding:8px 16px;background:#f9f9f9;border:1px solid var(--line);border-radius:20px;font-size:.9rem;color:var(--text-soft);text-decoration:none;transition:all var(--dur);display:inline-block}.rel-pill:hover{border-color:var(--primary);color:var(--primary)}@media (max-width:768px){.calc-grid{grid-template-columns:1fr}.inp-side{border-right:none;border-bottom:1px solid var(--line)}.inp-side,.res-side{padding:20px 16px}.examples-row,.stats3{grid-template-columns:1fr}.calc-wrap{margin:0 12px 24px}.bc,.calc-hero-sec{padding:12px 16px 0}.prose-wrap{padding:0 16px}}@media (max-width:480px){.calc-wrap{margin:0 0 24px;border-radius:0;border-left:none;border-right:none}.inp-side,.res-side{padding:16px 12px}.bc,.calc-hero-sec{padding:12px 12px 0}.prose-wrap{padding:0 12px}.rh-num{font-size:1.75rem}.finp{font-size:1rem;padding:10px 12px}.flbl{font-size:.8125rem}.page-h1{font-size:1.5rem}.sv{font-size:1rem}}