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p{font-size:.95rem;line-height:1.8;color:#555;margin-bottom:8px}.back-btn{margin-bottom:20px}.back-btn:before{content:"← "}@media (max-width: 768px){.header h1{font-size:1.8rem}.main-layout{gap:20px}.input-section,.output-section,.history-section{padding:20px}.output-tabs{flex-wrap:wrap}.tab-btn{padding:10px 15px;font-size:.9rem}.input-footer{flex-direction:column;align-items:stretch;gap:12px}.input-footer .btn{width:100%}.compare-actions{width:100%;justify-content:flex-end}.compare-action-btn{min-height:36px;padding:8px 12px}.static-page{padding:20px}.static-page-title{font-size:1.4rem}}