.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, #10b981, #059669);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:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #10b981);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.core-stat{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.core-stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#10b981;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.mode-tabs{display:flex;gap:16px;margin-bottom:32px;justify-content:center}.mode-tab{background:transparent;border:none;padding:14px 28px;cursor:pointer;transition:all 0.3s;border-radius:24px;text-align:center;min-width:200px}.mode-tab i{font-size:1.3rem;color:var(--gray-400);margin-bottom:8px;display:block}.mode-tab span{display:block;font-weight:600;color:var(--gray-600);margin-bottom:4px}.mode-tab small{font-size:0.65rem;color:var(--gray-400)}.mode-tab.active{background:linear-gradient(135deg, #10b981, #059669);box-shadow:0 8px 25px rgba(16,185,129,0.3)}.mode-tab.active i,.mode-tab.active span,.mode-tab.active small{color:white}.upload-area{background:linear-gradient(135deg, #f8fafc, #fff);border:2px dashed var(--gray-300);border-radius:32px;padding:48px 24px;text-align:center;cursor:pointer;transition:all 0.3s;margin-bottom:24px}.upload-area:hover{border-color:#10b981;background:#f0fdf4}.upload-icon i{font-size:4rem;color:#10b981;margin-bottom:16px}.upload-text{font-size:1rem;color:var(--gray-600);margin-bottom:8px}.upload-hint{font-size:0.7rem;color:var(--gray-400);margin-bottom:20px}.upload-btn{background:#10b981;color:white;border:none;padding:10px 24px;border-radius:40px;cursor:pointer}.upload-btn:hover{background:#059669}.preview-area{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px;animation:fadeIn 0.3s ease}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:500}.clear-preview{background:transparent;border:none;color:var(--gray-400);cursor:pointer;font-size:1rem}.clear-preview:hover{color:#ef4444}.preview-container{text-align:center}.preview-image{max-width:100%;max-height:200px;border-radius:16px;margin-bottom:12px}.image-info{display:flex;justify-content:center;gap:20px;font-size:0.7rem;color:var(--gray-500)}.convert-btn{width:100%;padding:14px;font-size:1rem;margin-bottom:24px;border-radius:60px;background:linear-gradient(135deg, #10b981, #059669)}.result-area{background:var(--gray-50);border-radius:24px;overflow:hidden;animation:fadeIn 0.3s ease}.result-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:white;border-bottom:1px solid var(--gray-200);font-weight:500}.result-actions{display:flex;gap:12px}.result-action-btn{background:transparent;border:none;padding:6px 14px;border-radius:30px;cursor:pointer;font-size:0.75rem;transition:all 0.2s;color:var(--gray-600)}.result-action-btn:hover{background:var(--gray-100);color:#10b981}.base64-textarea{width:100%;min-height:150px;padding:16px;font-family:monospace;font-size:0.75rem;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0;line-height:1.5}.base64-textarea:focus{outline:none}.base64-input-area{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px}.input-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:500}.clear-input{background:transparent;border:none;color:var(--gray-400);cursor:pointer}.base64-input-textarea{width:100%;min-height:150px;padding:16px;font-family:monospace;font-size:0.75rem;border:1px solid var(--gray-200);border-radius:16px;resize:vertical;background:white}.base64-input-textarea:focus{outline:none;border-color:#10b981}.input-tips{display:flex;justify-content:space-between;align-items:center;margin-top:12px}.tip{font-size:0.7rem;color:var(--gray-400)}.tip-btn{background:transparent;border:none;color:#10b981;cursor:pointer;font-size:0.7rem}.image-output-container{padding:20px;text-align:center}.output-image{max-width:100%;max-height:300px;border-radius:16px;box-shadow:0 4px 15px rgba(0,0,0,0.1)}.quick-icons{margin-top:32px}.icon-grid{display:grid;grid-template-columns:repeat(6, 1fr);gap:16px;margin-top:16px}.icon-item{background:var(--gray-50);border-radius:20px;padding:20px;text-align:center;cursor:pointer;transition:all 0.3s;border:1px solid var(--gray-200)}.icon-item:hover{transform:translateY(-4px);border-color:#10b981;box-shadow:0 8px 20px rgba(0,0,0,0.08)}.icon-preview i{font-size:2rem;color:#10b981;margin-bottom:12px}.icon-item span{font-size:0.7rem;color:var(--gray-600)}.info-section{margin-top:32px}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px;background:var(--gray-50);border-radius:20px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--gray-600)}.info-item i{color:#10b981}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.icon-grid{grid-template-columns:repeat(3, 1fr)}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.mode-tab{min-width:auto;padding:12px 20px}.core-stats{gap:12px}.core-stat{padding:12px 20px}.icon-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:480px){.info-grid{grid-template-columns:1fr}}