.profit-calculator{background:#fff;border-radius:16px;padding:32px;box-shadow:0 2px 12px #0000000f}.profit-input-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:24px}.profit-input-grid.small{margin-top:16px}.profit-input-group{display:flex;flex-direction:column;gap:8px}.profit-input-group label{font-size:13px;font-weight:500;color:#666}.profit-input-group input{padding:12px 14px;border:1px solid #e5e5e5;border-radius:10px;font-size:15px;color:#333;outline:none;transition:border-color .2s}.profit-input-group input:focus{border-color:#ff4d4f}.profit-input-group input::-moz-placeholder{color:#bbb}.profit-input-group input::placeholder{color:#bbb}.profit-input-section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #f0f0f0}.profit-input-section:last-of-type{border-bottom:none}.profit-input-section h3{font-size:15px;font-weight:600;color:#333;margin-bottom:12px}.profit-platform-selector{display:flex;flex-wrap:wrap;gap:10px}.platform-btn{padding:8px 16px;border:1px solid #e5e5e5;border-radius:8px;background:#fff;font-size:14px;font-weight:500;color:#666;cursor:pointer;transition:all .2s}.platform-btn:hover{border-color:#ff4d4f;color:#ff4d4f}.platform-btn.active{background:#ff4d4f;border-color:#ff4d4f;color:#fff}.profit-result{margin-top:24px;padding:24px;background:linear-gradient(135deg,#fff5f5,#fff);border-radius:12px;border:1px solid #ffcccc;min-height:100px}.profit-result__placeholder{display:flex;align-items:center;justify-content:center;height:60px;color:#999;font-size:14px}.profit-result__show{animation:fadeIn .3s ease}.profit-result__main{text-align:center;padding:8px 0}.profit-result__label{display:block;font-size:14px;color:#666;margin-bottom:8px}.profit-result__price{display:block;font-size:42px;font-weight:700;margin-bottom:8px}.profit-result__main.profit .profit-result__price{color:#52c41a}.profit-result__main.loss .profit-result__price{color:#ff4d4f}.profit-result__rate{font-size:16px;color:#999}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.profit-summary-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.profit-summary-card{background:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 2px 12px #0000000f}.profit-summary-card__label{display:block;font-size:13px;color:#999;margin-bottom:8px}.profit-summary-card__value{font-size:24px;font-weight:700;color:#333}.profit-summary-card.highlight .profit-summary-card__value{color:#52c41a}.profit-breakdown{margin-top:24px;background:#fff;border-radius:16px;padding:24px;box-shadow:0 2px 12px #0000000f}.profit-breakdown h3{font-size:15px;font-weight:600;color:#333;margin-bottom:20px}.profit-bar-chart{display:flex;flex-direction:column;gap:16px}.profit-bar-item{display:flex;align-items:center;gap:12px}.profit-bar-item__label{width:60px;font-size:13px;color:#666}.profit-bar-item__bar{flex:1;height:24px;background:#f5f5f5;border-radius:4px;overflow:hidden}.profit-bar-item__fill{height:100%;border-radius:4px;transition:width .5s ease}.profit-bar-item__fill.cost{background:#ffa39e}.profit-bar-item__fill.platform{background:#ffd8bf}.profit-bar-item__fill.commission{background:#fff0a8}.profit-bar-item__fill.logistics{background:#d9d9d9}.profit-bar-item__fill.profit{background:#b7eb8f}.profit-bar-item__value{width:70px;text-align:right;font-size:14px;font-weight:600;color:#333}@media(max-width:600px){.profit-calculator{padding:20px}.profit-input-grid,.profit-summary-cards{grid-template-columns:1fr}.profit-result__price{font-size:36px}}