.stats-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-bottom:30px}.stat-card{background:white;border-radius:20px;padding:20px;display:flex;align-items:center;gap:16px;border:1px solid var(--gray-200);transition:all 0.3s}.stat-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}.stat-icon{width:50px;height:50px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary-color)}.stat-value{font-size:1.4rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.75rem;color:var(--gray-500)}.config-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.config-panel{background:var(--gray-50);border-radius:20px;padding:20px}.config-section{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--gray-200)}.config-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.config-section h4{font-size:0.9rem;margin-bottom:12px;color:var(--gray-700);display:flex;align-items:center;gap:8px}.form-group{margin-bottom:12px}.form-group label{display:block;font-size:0.8rem;color:var(--gray-600);margin-bottom:4px}.form-select,.form-input{width:100%;padding:10px 12px;border:1px solid var(--gray-300);border-radius:12px;font-size:0.9rem}.charging-type-buttons{display:flex;gap:8px}.charging-type{flex:1;padding:8px 12px;border:1px solid var(--gray-300);border-radius:12px;background:white;cursor:pointer;transition:all 0.2s;font-size:0.8rem;text-align:center}.charging-type.active{background:var(--primary-color);border-color:var(--primary-color);color:white}.range-wrapper{display:flex;align-items:center;gap:12px}.range-wrapper input{flex:1}.result-panel{background:white;border-radius:20px;border:1px solid var(--gray-200);padding:20px}.result-items{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.result-item{background:var(--gray-50);border-radius:12px;padding:12px;text-align:center}.item-label{font-size:0.7rem;color:var(--gray-500);display:block;margin-bottom:4px}.item-value{font-size:1.1rem;font-weight:600}.item-value.highlight{color:var(--primary-color);font-size:1.3rem}.chart-container{height:180px}.quick-scenarios{margin-bottom:24px}.scenario-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}.scenario-btn{background:var(--gray-100);border:1px solid var(--gray-300);padding:8px 20px;border-radius:40px;cursor:pointer;font-size:0.85rem;transition:all 0.2s}.scenario-btn:hover{background:var(--primary-color);color:white}.compare-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;margin-top:16px}.compare-card{background:var(--gray-50);border-radius:16px;padding:16px;text-align:center}.compare-icon{font-size:28px;margin-bottom:8px}.compare-label{font-size:0.8rem;color:var(--gray-500)}.compare-value{font-size:1.4rem;font-weight:700;color:var(--gray-800)}.compare-value.save{color:#10b981}.compare-desc{font-size:0.65rem;color:var(--gray-400);margin-top:4px}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-top:20px}.knowledge-card{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center}.knowledge-card i{font-size:28px;color:var(--primary-color);margin-bottom:12px}.knowledge-card h4{font-size:0.85rem;margin-bottom:8px}.knowledge-card p{font-size:0.75rem;color:var(--gray-500);line-height:1.5}@media (max-width:900px){.stats-grid{grid-template-columns:repeat(2, 1fr)}.config-layout{grid-template-columns:1fr}.compare-grid{grid-template-columns:repeat(2, 1fr)}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.result-items{grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr}.charging-type-buttons{flex-direction:column}.knowledge-grid{grid-template-columns:1fr}}