.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:20px;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}.input-card,.output-card{background:white;border-radius:24px;padding:20px;border:1px solid var(--gray-200);box-shadow:0 4px 20px rgba(0,0,0,0.03)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.card-title{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--gray-700)}.card-title i{color:#10b981;font-size:1.1rem}.card-actions{display:flex;gap:8px;flex-wrap:wrap}.action-chip{background:var(--gray-100);border:none;padding:6px 14px;border-radius:30px;font-size:0.7rem;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.action-chip:hover{background:#10b981;color:white}.url-input-wrapper{display:flex;align-items:center;flex-wrap:wrap;background:var(--gray-50);border-radius:16px;padding:4px;border:1px solid var(--gray-200)}.url-prefix,.url-suffix{background:var(--gray-100);padding:12px 16px;border-radius:12px;font-size:0.8rem;color:var(--gray-500);font-family:monospace}.url-params-input{flex:1;border:none;padding:12px 16px;font-size:0.9rem;font-family:monospace;background:transparent;min-width:200px}.url-params-input:focus{outline:none}.json-textarea{width:100%;min-height:250px;padding:16px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.5;border:1px solid var(--gray-200);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0}.json-textarea:focus{outline:none;border-color:#10b981}.json-viewer{background:#1a1a2e;border-radius:16px;overflow:auto;max-height:400px}.json-output{margin:0;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.5;color:#e0e0e0;white-space:pre-wrap;word-break:break-all}.url-result-wrapper{display:flex;align-items:center;flex-wrap:wrap;background:var(--gray-50);border-radius:16px;padding:4px;border:1px solid var(--gray-200);min-height:60px}.url-result-prefix{background:var(--gray-100);padding:12px 16px;border-radius:12px;font-size:0.8rem;color:var(--gray-500);font-family:monospace}.url-output{flex:1;padding:12px 16px;font-family:monospace;font-size:0.85rem;color:#10b981;word-break:break-all}.convert-btn-wrapper{text-align:center;margin:24px 0}.convert-btn{padding:14px 40px;font-size:1rem;border-radius:60px}.history-section{margin-top:32px}.history-list{max-height:200px;overflow-y:auto;margin-top:12px}.history-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--gray-50);border-radius:12px;margin-bottom:8px;cursor:pointer;transition:all 0.2s}.history-item:hover{background:var(--gray-100);transform:translateX(4px)}.history-preview{font-family:monospace;font-size:0.75rem;color:var(--gray-600);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-type{background:#10b981;color:white;padding:2px 10px;border-radius:20px;font-size:0.6rem;margin-right:12px}.history-time{font-size:0.65rem;color:var(--gray-400)}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:white;border-radius:24px;width:90%;max-width:500px;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200);font-weight:600}.modal-close{background:transparent;border:none;font-size:1.2rem;cursor:pointer}.modal-body{padding:20px}.modal-body label{display:block;margin-bottom:8px;font-weight:500}.modal-body .input-field{width:100%;padding:12px;border:1px solid var(--gray-300);border-radius:12px}.preview-url{margin-top:12px;padding:12px;background:var(--gray-50);border-radius:12px;font-family:monospace;font-size:0.8rem;word-break:break-all}.modal-footer{display:flex;gap:12px;justify-content:flex-end;padding:16px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200)}.info-section{margin-top:24px}.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}.input-tips{display:flex;gap:16px;margin-top:12px;flex-wrap:wrap}.tip{font-size:0.7rem;color:var(--gray-400)}.json-key{color:#9cdcfe}.json-string{color:#ce9178}.json-number{color:#b5cea8}.json-boolean{color:#569cd6}.json-null{color:#569cd6}@media (max-width:900px){.info-grid{grid-template-columns:repeat(2, 1fr)}.mode-tab{min-width:auto;padding:10px 16px}.url-input-wrapper{flex-direction:column;align-items:stretch}.url-prefix,.url-suffix{text-align:center}}@media (max-width:480px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.info-grid{grid-template-columns:1fr}.history-item{flex-direction:column;align-items:flex-start;gap:8px}}