.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)}.algo-selector{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200)}.algo-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.algo-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(140px, 1fr));gap:12px}.algo-btn{background:var(--gray-50);border:1px solid var(--gray-200);padding:12px;border-radius:16px;cursor:pointer;transition:all 0.2s;text-align:center}.algo-btn i{font-size:1.2rem;color:var(--gray-500);margin-bottom:6px;display:block}.algo-btn span{display:block;font-weight:500;font-size:0.85rem}.algo-btn small{font-size:0.65rem;color:var(--gray-400)}.algo-btn.active{background:linear-gradient(135deg, #10b981, #059669);border-color:#10b981;color:white}.algo-btn.active i,.algo-btn.active small{color:rgba(255,255,255,0.8)}.hmac-section{background:linear-gradient(135deg, #fef3c7, #fffbeb);border-radius:20px;padding:20px;margin-bottom:24px;border:1px solid #fde68a}.hmac-header{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-weight:600;color:#92400e}.hmac-input-wrapper{display:flex;gap:12px;flex-wrap:wrap}.hmac-input{flex:1;padding:12px 16px;border:1px solid #fde68a;border-radius:12px;font-family:monospace;background:white}.generate-key-btn{background:#fde68a;border:none;padding:12px 20px;border-radius:12px;cursor:pointer;transition:all 0.2s;font-weight:500;color:#92400e}.generate-key-btn:hover{background:#fcd34d}.output-format{background:var(--gray-50);border-radius:20px;padding:16px;margin-bottom:24px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.format-header{display:flex;align-items:center;gap:8px;font-weight:500;font-size:0.85rem}.format-buttons{display:flex;gap:12px}.format-btn{background:white;border:1px solid var(--gray-200);padding:6px 16px;border-radius:30px;cursor:pointer;transition:all 0.2s;font-size:0.8rem}.format-btn.active{background:#10b981;border-color:#10b981;color:white}.input-card{background:var(--gray-50);border-radius:20px;overflow:hidden;margin-bottom:24px}.input-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:white;border-bottom:1px solid var(--gray-200)}.input-title{display:flex;align-items:center;gap:10px;font-weight:500}.char-badge{font-size:0.7rem;color:var(--gray-500);background:var(--gray-100);padding:2px 8px;border-radius:20px}.input-actions{display:flex;gap:8px}.icon-btn-sm{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn-sm:hover{background:var(--gray-100);color:#10b981}.sha-textarea{width:100%;min-height:150px;padding:16px;font-family:'Fira Code',monospace;font-size:0.9rem;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.sha-textarea:focus{outline:none}.action-buttons{display:flex;gap:12px;justify-content:center;margin-bottom:24px;flex-wrap:wrap}.encrypt-btn{background:linear-gradient(135deg, #10b981, #059669);padding:12px 28px;font-size:1rem;border-radius:50px}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:12px 24px;border-radius:50px;font-weight:500;cursor:pointer;transition:all 0.2s}.btn-outline:hover{background:var(--gray-100);border-color:#10b981;color:#10b981}.hash-result{background:#1a1a2e;border-radius:20px;overflow:hidden;margin-bottom:24px}.result-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#2d2d44;color:#e0e0e0}.result-status{font-size:0.7rem;padding:2px 10px;border-radius:20px;background:#4a4a6a}.result-content{padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;word-break:break-all;color:#10b981}.compare-section{background:white;border-radius:20px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200);animation:fadeIn 0.3s ease}.compare-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--gray-200)}.close-compare{background:transparent;border:none;cursor:pointer;color:var(--gray-500)}.compare-input-group{display:flex;gap:12px;margin-bottom:16px}.compare-input{flex:1;padding:12px 16px;border:1px solid var(--gray-300);border-radius:12px;font-family:monospace}.compare-btn{background:#10b981;color:white;border:none;padding:12px 24px;border-radius:12px;cursor:pointer}.compare-result{padding:12px;border-radius:12px;font-weight:500}.compare-result.match{background:#d1fae5;color:#065f46}.compare-result.not-match{background:#fee2e2;color:#991b1b}.file-hash-section{background:var(--gray-50);border-radius:20px;padding:20px;margin-bottom:24px}.file-header{display:flex;align-items:center;gap:10px;margin-bottom:16px}.file-tip{font-size:0.7rem;color:var(--gray-500);margin-left:auto}.file-upload-area{border:2px dashed var(--gray-300);border-radius:16px;padding:30px;text-align:center;cursor:pointer;transition:all 0.2s}.file-upload-area:hover{border-color:#10b981;background:#f0fdf4}.file-upload-area i{font-size:40px;color:var(--gray-400);margin-bottom:12px}.file-info{margin-top:16px}.file-detail{display:flex;justify-content:space-between;padding:8px 12px;background:white;border-radius:12px;margin-bottom:12px}.file-size{color:var(--gray-500);font-size:0.8rem}.progress-bar{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden;margin:12px 0}.progress-fill{height:100%;background:#10b981;width:0%;transition:width 0.3s}.file-hash-result{font-family:monospace;font-size:0.75rem;padding:12px;background:white;border-radius:12px;word-break:break-all}.info-section{margin-top:24px}.info-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:12px;padding:16px;background:var(--gray-50);border-radius:20px}.info-item{font-size:0.8rem;color:var(--gray-600);display:flex;align-items:center;gap:8px}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.algo-grid{grid-template-columns:repeat(2, 1fr)}.action-buttons{flex-direction:column}.action-buttons button{width:100%}.compare-input-group{flex-direction:column}.core-stats{gap:12px}.core-stat{padding:12px 20px}}