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480px){.tool-form-actions .btn{flex:initial}}.tool-result{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-5)}@media (min-width: 768px){.tool-result{padding:var(--space-6)}}@media (min-width: 1024px){.tool-result{position:sticky;top:calc(var(--header-height) + var(--space-4))}}.tool-result-title{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);font-family:var(--font-heading);font-size:var(--text-lg);font-weight:var(--weight-bold);color:var(--color-text-primary);margin-bottom:var(--space-5);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border)}.tool-result-content{animation:result-enter var(--duration-normal) var(--ease-out) both}@keyframes result-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.tool-result-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-8) var(--space-4);text-align:center;color:var(--color-text-tertiary)}.tool-result-empty-icon{width:40px;height:40px;opacity:.5}.tool-result-empty-text{font-size:var(--text-sm)}.tool-result-actions{display:flex;align-items:center;gap:var(--space-2);margin-top:var(--space-5);padding-top:var(--space-4);border-top:1px solid var(--color-border)}.tool-info{max-width:800px;margin-inline:auto;margin-top:var(--space-12);padding-top:var(--space-10);border-top:1px solid var(--color-border)}.tool-info h2{font-size:var(--text-xl);margin-bottom:var(--space-4);margin-top:var(--space-10)}.tool-info h2:first-child{margin-top:0}@media (min-width: 768px){.tool-info h2{font-size:var(--text-2xl)}}.tool-info h3{font-size:var(--text-lg);margin-bottom:var(--space-3);margin-top:var(--space-8)}.tool-info p{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--color-text-secondary)}.tool-info p+p{margin-top:var(--space-4)}.tool-info ul,.tool-info ol{margin-top:var(--space-3);margin-bottom:var(--space-4);padding-left:var(--space-6)}.tool-info li{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--color-text-secondary)}.tool-info li+li{margin-top:var(--space-2)}.tool-info strong{color:var(--color-text-primary)}.tool-info code{font-family:var(--font-mono)}.tool-info .formula-block{display:block;padding:var(--space-4) var(--space-5);background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-left:3px solid var(--color-accent-primary);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:var(--text-sm);color:var(--color-accent-primary);margin-block:var(--space-4);overflow-x:auto;white-space:pre-wrap}.tool-faq{max-width:800px;margin-inline:auto;margin-top:var(--space-12)}.tool-faq-title{font-size:var(--text-xl);margin-bottom:var(--space-6)}@media (min-width: 768px){.tool-faq-title{font-size:var(--text-2xl)}}.tool-tips{max-width:800px;margin-inline:auto;margin-top:var(--space-12)}.tool-tips-title{font-size:var(--text-xl);margin-bottom:var(--space-6)}@media (min-width: 768px){.tool-tips-title{font-size:var(--text-2xl)}}.tool-tips-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media (min-width: 768px){.tool-tips-grid{grid-template-columns:repeat(2,1fr)}}.tool-tip-card{display:flex;gap:var(--space-4);padding:var(--space-4) var(--space-5);background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.tool-tip-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;border-radius:var(--radius-md);background-color:var(--color-accent-soft);color:var(--color-accent-primary)}.tool-tip-icon svg{width:18px;height:18px}.tool-tip-title{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.tool-tip-text{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.related-tools{margin-top:var(--space-12)}.related-tools-title{font-size:var(--text-xl);margin-bottom:var(--space-6)}@media (min-width: 768px){.related-tools-title{font-size:var(--text-2xl)}}.related-tools-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media (min-width: 768px){.related-tools-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 1024px){.related-tools-grid{grid-template-columns:repeat(3,1fr)}}.tool-history{margin-top:var(--space-6)}.tool-history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.tool-history-title{font-size:var(--text-base);font-weight:var(--weight-semibold);color:var(--color-text-primary)}.tool-history-clear{font-size:var(--text-xs);font-weight:var(--weight-medium);color:var(--color-text-tertiary);background:none;border:none;cursor:pointer;padding:var(--space-1) var(--space-2);border-radius:var(--radius-md);transition:var(--transition-fast)}.tool-history-clear:hover{color:var(--color-error);background-color:#f8717114}.tool-history-list{display:flex;flex-direction:column;gap:var(--space-2)}.tool-history-item{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-3) var(--space-4);background-color:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);cursor:pointer;transition:var(--transition-fast)}.tool-history-item:hover{border-color:var(--color-border-hover);background-color:var(--color-bg-tertiary)}.tool-history-input{color:var(--color-text-secondary);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-history-result{font-family:var(--font-mono);font-weight:var(--weight-semibold);color:var(--color-accent-primary);white-space:nowrap}.tool-history-empty{text-align:center;padding:var(--space-6);font-size:var(--text-sm);color:var(--color-text-tertiary)}.tool-disclaimer{margin-top:var(--space-8);padding:var(--space-3) var(--space-4);background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-left:3px solid var(--color-info);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.tool-meta{margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--color-border);display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3);font-size:var(--text-sm);color:var(--color-text-tertiary)}.tool-meta-label{font-weight:var(--weight-medium)}.tool-meta-value{color:var(--color-text-secondary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.flex{display:flex}.flex-col{display:flex;flex-direction:column}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.flex-wrap{flex-wrap:wrap}.flex-1{flex:1}.items-start{align-items:flex-start}.items-center{align-items:center}.items-end{align-items:flex-end}.gap-xs{gap:var(--space-1)}.gap-sm{gap:var(--space-2)}.gap-md{gap:var(--space-4)}.gap-lg{gap:var(--space-6)}.gap-xl{gap:var(--space-8)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-xs{font-size:var(--text-xs)}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-lg{font-size:var(--text-lg)}.text-xl{font-size:var(--text-xl)}.font-medium{font-weight:var(--weight-medium)}.font-semibold{font-weight:var(--weight-semibold)}.font-bold{font-weight:var(--weight-bold)}.font-mono{font-family:var(--font-mono)}.text-primary{color:var(--color-text-primary)}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}.text-accent{color:var(--color-accent-primary)}.text-success{color:var(--color-success)}.text-warning{color:var(--color-warning)}.text-error{color:var(--color-error)}.mt-0{margin-top:0}.mt-1{margin-top:var(--space-1)}.mt-2{margin-top:var(--space-2)}.mt-3{margin-top:var(--space-3)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--space-1)}.mb-2{margin-bottom:var(--space-2)}.mb-3{margin-bottom:var(--space-3)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.mx-auto{margin-inline:auto}.p-0{padding:0}.p-4{padding:var(--space-4)}.p-6{padding:var(--space-6)}.px-4{padding-inline:var(--space-4)}.py-4{padding-block:var(--space-4)}.py-8{padding-block:var(--space-8)}.w-full{width:100%}.hidden{display:none}.visible{visibility:visible}.hide-mobile{display:none}@media (min-width: 768px){.hide-mobile{display:initial}.hide-desktop{display:none}}@media print{.no-print{display:none!important}}.overflow-hidden{overflow:hidden}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.border-b{border-bottom:1px solid var(--color-border)}.rounded-lg{border-radius:var(--radius-lg)}.rounded-xl{border-radius:var(--radius-xl)}.transition-fast{transition:var(--transition-fast)}.transition-normal{transition:var(--transition-normal)}