.vol-converter{--vol-primary: #f59e0b;--vol-secondary: #fbbf24;--vol-accent: #fde68a;--vol-bg: #fffbeb;--vol-card-bg: #ffffff;--vol-text: #78350f;--vol-text-muted: #b45309;--vol-border: #fde68a;--vol-shadow: 0 4px 20px rgba(245, 158, 11, .12);max-width:900px;margin:0 auto;font-family:system-ui,-apple-system,sans-serif}.vol-header{text-align:center;margin-bottom:2rem}.vol-title{font-size:2rem;font-weight:800;color:var(--vol-primary);margin:0 0 .5rem}.vol-description{color:var(--vol-text-muted);font-size:1.1rem;margin:0}.vol-formula-container{background:linear-gradient(135deg,var(--vol-bg) 0%,#fef3c7 100%);border-radius:16px;padding:1.5rem;margin-bottom:2rem;border:1px solid var(--vol-border)}.vol-formula-title{font-size:1.1rem;font-weight:700;color:var(--vol-primary);margin:0 0 1rem;text-align:center}.vol-formula-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.vol-formula-card{background:var(--vol-card-bg);border-radius:12px;padding:1rem;text-align:center}.vol-formula-label{display:block;font-size:.85rem;font-weight:600;color:var(--vol-text-muted);margin-bottom:.5rem}.vol-formula-math{font-size:.9rem;color:var(--vol-text);overflow-x:auto}.vol-form-container{background:var(--vol-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--vol-shadow);margin-bottom:2rem}.vol-form{display:flex;flex-direction:column;gap:1.25rem}.vol-input-row{display:flex;gap:1rem;align-items:flex-end;flex-wrap:wrap}.vol-input-main{flex:1;min-width:150px}.vol-input-group{display:flex;flex-direction:column;gap:.5rem;min-width:150px}.vol-label{font-weight:600;font-size:.9rem;color:var(--vol-text)}.vol-input,.vol-select{width:100%;padding:.875rem 1rem;border:2px solid var(--vol-border);border-radius:10px;font-size:1rem;background:var(--vol-bg)}.vol-input:focus,.vol-select:focus{outline:none;border-color:var(--vol-primary);background:#fff}.vol-swap-btn{width:44px;height:44px;border:2px solid var(--vol-border);border-radius:10px;background:var(--vol-bg);font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center}.vol-swap-btn:hover{background:var(--vol-primary);color:#fff;border-color:var(--vol-primary)}.vol-buttons{display:flex;gap:1rem}.vol-btn{flex:1;padding:1rem;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer}.vol-btn-primary{background:linear-gradient(135deg,var(--vol-primary) 0%,var(--vol-secondary) 100%);color:#fff}.vol-btn-secondary{background:var(--vol-bg);color:var(--vol-text-muted);border:2px solid var(--vol-border)}.vol-results{background:var(--vol-card-bg);border-radius:16px;padding:1.5rem;box-shadow:var(--vol-shadow);margin-bottom:2rem}.vol-results-title{font-size:1.25rem;font-weight:700;color:var(--vol-primary);margin:0 0 1.5rem;text-align:center}.vol-main-result{text-align:center;background:linear-gradient(135deg,var(--vol-primary) 0%,var(--vol-secondary) 100%);border-radius:16px;padding:2rem;margin-bottom:1.5rem}.vol-main-label{display:block;font-size:1rem;color:#ffffffe6;margin-bottom:.5rem}.vol-main-value{font-size:2rem;font-weight:800;color:#fff}.vol-all-units{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.vol-unit-card{background:var(--vol-bg);border-radius:12px;padding:1rem;text-align:center}.vol-unit-label{display:block;font-size:.75rem;font-weight:600;color:var(--vol-text-muted);margin-bottom:.25rem}.vol-unit-value{font-size:1rem;font-weight:800;color:var(--vol-text)}.vol-content{margin-top:3rem}.vol-content-section{margin-bottom:2.5rem}.vol-content-title{font-size:1.5rem;font-weight:700;color:var(--vol-text);margin:0 0 1rem;padding-bottom:.5rem;border-bottom:3px solid var(--vol-primary)}.vol-content-text{color:var(--vol-text-muted);line-height:1.7;margin:0 0 1rem}.vol-features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1.5rem}.vol-feature-card{background:var(--vol-bg);border-radius:12px;padding:1.25rem;text-align:center}.vol-feature-icon{font-size:2rem;display:block;margin-bottom:.75rem}.vol-feature-title{font-size:1rem;font-weight:700;color:var(--vol-text);margin:0 0 .5rem}.vol-feature-desc{font-size:.85rem;color:var(--vol-text-muted);margin:0}.vol-table-wrapper{overflow-x:auto;border-radius:12px;margin-top:1.5rem}.vol-table{width:100%;border-collapse:collapse;background:#fff;font-size:.9rem}.vol-table th{background:var(--vol-primary);color:#fff;padding:.875rem 1rem;text-align:left}.vol-table td{padding:.75rem 1rem;border-bottom:1px solid var(--vol-border)}.vol-table-ref{font-weight:700;color:var(--vol-primary)}.vol-tips-grid{display:grid;gap:1rem;margin-top:1.5rem}.vol-tip-card{display:flex;gap:1rem;background:var(--vol-card-bg);border-radius:12px;padding:1.25rem;border-left:4px solid var(--vol-primary)}.vol-tip-icon{font-size:1.5rem}.vol-tip-title{font-size:1rem;font-weight:700;color:var(--vol-text);margin:0 0 .5rem}.vol-tip-text{font-size:.9rem;color:var(--vol-text-muted);margin:0}.vol-faqs{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.vol-faq-item{background:var(--vol-card-bg);border-radius:12px;padding:1.25rem}.vol-faq-question{font-size:1rem;font-weight:700;color:var(--vol-primary);margin:0 0 .75rem}.vol-faq-answer{font-size:.9rem;color:var(--vol-text-muted);margin:0;line-height:1.6}@media (max-width: 768px){.vol-input-row{flex-direction:column}.vol-all-units{grid-template-columns:repeat(2,1fr)}}