.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}.stats-cards{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{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)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #ecfdf5);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#10b981;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.format-tabs{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap;justify-content:center}.format-tab{background:transparent;border:1px solid var(--gray-200);padding:10px 24px;border-radius:60px;cursor:pointer;transition:all 0.3s;display:flex;align-items:center;gap:8px;font-weight:500}.format-tab i{font-size:1rem}.format-tab.active{background:linear-gradient(135deg, #10b981, #059669);border-color:#10b981;color:white;box-shadow:0 4px 12px rgba(16,185,129,0.3)}.kv-container{display:grid;grid-template-columns:1fr 320px;gap:24px;margin-bottom:24px}.input-section{background:linear-gradient(135deg, #fff, #fafafc);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.section-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);flex-wrap:wrap;gap:12px}.header-title{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--gray-700)}.header-title i{color:#10b981}.format-badge{background:#e2e8f0;padding:2px 10px;border-radius:20px;font-size:0.65rem;font-weight:normal;color:var(--gray-600)}.header-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}.kv-textarea{width:100%;min-height:280px;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.kv-textarea:focus{outline:none}.input-tips{padding:10px 16px;background:var(--gray-50);border-top:1px solid var(--gray-200);display:flex;gap:16px;flex-wrap:wrap;font-size:0.7rem;color:var(--gray-500)}.tip i{margin-right:4px;color:#10b981}.options-section{display:flex;flex-direction:column;gap:20px}.options-card{background:white;border-radius:20px;padding:16px;border:1px solid var(--gray-200)}.options-card h4{font-size:0.85rem;margin-bottom:16px;color:var(--gray-700);display:flex;align-items:center;gap:8px}.options-grid{display:grid;grid-template-columns:1fr;gap:12px}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.8rem;user-select:none;flex-wrap:wrap}.checkbox-label input[type="checkbox"]{width:16px;height:16px;cursor:pointer}.action-bar{display:flex;justify-content:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}.convert-btn{background:linear-gradient(135deg, #10b981, #059669);padding:12px 32px;border-radius:50px}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:10px 24px;border-radius:50px;cursor:pointer;transition:all 0.2s}.btn-outline:hover{background:var(--gray-100);border-color:#10b981;color:#10b981}.output-section{background:linear-gradient(135deg, #fff, #fafafc);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:24px}.output-wrapper{max-height:400px;overflow:auto;background:#1a1a2e}.code-output{margin:0;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;color:#e0e0e0;white-space:pre-wrap;word-break:break-all}.info-section{margin-top:20px}.divider{display:flex;align-items:center;gap:12px;margin-bottom:16px}.divider span{font-size:0.85rem;font-weight:500;color:var(--gray-600)}.divider::after{content:'';flex:1;height:1px;background:var(--gray-200)}.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}.json-key{color:#9cdcfe}.json-string{color:#ce9178}.json-number{color:#b5cea8}.json-boolean{color:#569cd6}.json-null{color:#569cd6}.xml-tag{color:#569cd6}.xml-attribute{color:#9cdcfe}.xml-value{color:#ce9178}.yaml-key{color:#9cdcfe}@media (max-width:900px){.kv-container{grid-template-columns:1fr}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:480px){.stats-cards{gap:12px}.stat-card{padding:12px 20px}.stat-value{font-size:1.2rem}.info-grid{grid-template-columns:1fr}.format-tabs{justify-content:flex-start}.action-bar{flex-direction:column}.btn-outline{text-align:center}}