.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #3b82f6, #1e40af);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg, #1e293b, #3b82f6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:0.95rem}.converter-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:32px;padding:28px;margin-bottom:24px;border:1px solid rgba(0,0,0,0.05);box-shadow:0 20px 35px -10px rgba(0,0,0,0.08)}.converter-input-area{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap}.input-group-large{flex:1;background:white;border-radius:60px;border:1px solid var(--gray-200);transition:all 0.3s}.input-group-large:focus-within{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.input-wrapper{display:flex;align-items:center;gap:12px;padding:6px 6px 6px 20px}.input-prefix{color:var(--primary-color);font-size:1rem}.value-input{flex:1;border:none;padding:14px 0;font-size:1rem;font-weight:500;background:transparent}.value-input:focus{outline:none}.unit-select{padding:12px 16px;border:none;background:var(--gray-100);border-radius:40px;font-size:0.9rem;font-weight:500;cursor:pointer}.equals-icon{color:var(--gray-400);font-size:1.2rem;padding:0 8px}.result-preview{min-width:120px;padding:12px 16px;background:var(--gray-100);border-radius:40px;font-family:monospace;font-weight:600;color:var(--primary-color)}.convert-btn{background:linear-gradient(135deg, var(--primary-color), #1e40af);border:none;padding:14px 32px;border-radius:60px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s;display:inline-flex;align-items:center;gap:8px}.convert-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(59,130,246,0.3)}.quick-card{background:white;border-radius:24px;padding:20px;margin-bottom:28px;border:1px solid var(--gray-200)}.quick-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.quick-header i{color:#f59e0b}.quick-buttons{display:flex;flex-wrap:wrap;gap:12px}.quick-item{background:var(--gray-100);border:1px solid var(--gray-200);padding:10px 18px;border-radius:40px;font-size:0.85rem;cursor:pointer;transition:all 0.2s}.quick-item:hover{background:var(--primary-color);border-color:var(--primary-color);color:white;transform:translateY(-2px)}.results-grid{display:grid;grid-template-columns:repeat(5, 1fr);gap:16px;margin-bottom:28px}.result-card{background:white;border-radius:20px;padding:16px;display:flex;align-items:center;gap:12px;border:1px solid var(--gray-200);transition:all 0.3s;position:relative}.result-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px -8px rgba(0,0,0,0.1);border-color:var(--primary-light)}.result-icon{width:44px;height:44px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:1.2rem}.result-info{flex:1}.result-label{display:block;font-size:0.65rem;color:var(--gray-500);margin-bottom:4px}.result-value{display:block;font-size:0.85rem;font-weight:600;color:var(--gray-800);font-family:monospace;word-break:break-all}.copy-result{position:absolute;top:12px;right:12px;background:transparent;border:none;color:var(--gray-400);cursor:pointer;padding:4px;border-radius:8px;transition:all 0.2s}.copy-result:hover{background:var(--gray-100);color:var(--primary-color)}.reference-card{background:var(--gray-50);border-radius:20px;margin-bottom:24px;overflow:hidden}.reference-header{display:flex;align-items:center;gap:10px;padding:16px 20px;background:white;border-bottom:1px solid var(--gray-200);font-weight:600;cursor:pointer}.reference-header i:first-child{color:var(--primary-color)}.toggle-btn{margin-left:auto;background:transparent;border:none;cursor:pointer;color:var(--gray-500);transition:transform 0.3s}.toggle-btn.rotated{transform:rotate(180deg)}.reference-content{padding:20px;display:none}.reference-content.show{display:block}.ref-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:12px}.ref-item{display:flex;justify-content:space-between;padding:8px 12px;background:white;border-radius:12px;font-size:0.8rem}.ref-item span:first-child{font-weight:600;color:var(--gray-700)}.ref-item span:last-child{font-family:monospace;color:var(--primary-color)}.info-section{margin-top:8px}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px}.info-item{display:flex;align-items:center;gap:10px;font-size:0.85rem;color:var(--gray-600)}.info-item i{width:28px;height:28px;background:var(--gray-100);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:0.7rem}.info-note{background:#fef3c7;border-radius:12px;padding:12px 16px;font-size:0.75rem;color:#92400e;margin-top:16px}.ad-section{margin:20px 0 40px}.ad-banner{background:linear-gradient(135deg, #f5f5f5, #fff);border:1px solid var(--gray-200);border-radius:16px;padding:20px;text-align:center;position:relative}.ad-label{position:absolute;top:8px;right:12px;font-size:0.6rem;color:var(--gray-400)}.ad-content{color:var(--gray-500);font-size:0.85rem}@media (max-width:1024px){.results-grid{grid-template-columns:repeat(3, 1fr)}.ref-grid{grid-template-columns:1fr}}@media (max-width:768px){.converter-input-area{flex-direction:column}.input-group-large{width:100%}.input-wrapper{flex-wrap:wrap;gap:12px}.value-input{min-width:120px}.convert-btn{width:100%;justify-content:center}.results-grid{grid-template-columns:repeat(2, 1fr)}.info-grid{grid-template-columns:repeat(2, 1fr)}.quick-item{font-size:0.75rem;padding:6px 14px}}@media (max-width:480px){.results-grid{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr}.result-preview{display:none}}