:root{--font-body:'Inter',system-ui,-apple-system,sans-serif;--font-head:'Outfit','Inter',system-ui,sans-serif;--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;--bg:#0b0f19;--bg-subtle:#111827;--surface:#151d30;--surface-hover:#1e293b;--border:#243048;--border-focus:#6366f1;--text:#f3f4f6;--text-muted:#94a3b8;--text-faint:#64748b;--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:rgba(99,102,241,0.15);--accent:#06b6d4;--accent-light:rgba(6,182,212,0.15);--success:#10b981;--success-light:rgba(16,185,129,0.15);--warning:#f59e0b;--warning-light:rgba(245,158,11,0.15);--danger:#ef4444;--danger-light:rgba(239,68,68,0.15);--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--shadow:0 4px 20px -2px rgba(0,0,0,0.4);--shadow-lg:0 10px 30px -5px rgba(0,0,0,0.5);--transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}[data-theme="light"]{--bg:#f8fafc;--bg-subtle:#f1f5f9;--surface:#ffffff;--surface-hover:#f8fafc;--border:#e2e8f0;--border-focus:#4f46e5;--text:#0f172a;--text-muted:#64748b;--text-faint:#94a3b8;--primary:#4f46e5;--primary-hover:#3730a3;--primary-light:rgba(79,70,229,0.1);--accent:#0284c7;--accent-light:rgba(2,132,199,0.1);--success:#059669;--success-light:rgba(5,150,105,0.1);--warning:#d97706;--warning-light:rgba(217,119,6,0.1);--danger:#dc2626;--danger-light:rgba(220,38,38,0.1);--shadow:0 4px 20px -2px rgba(0,0,0,0.06);--shadow-lg:0 10px 30px -5px rgba(0,0,0,0.1)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);background-color:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;overflow-x:hidden;position:relative;transition:background-color 0.25s ease,color 0.25s ease}a{color:inherit;text-decoration:none;transition:var(--transition)}button,input,select,textarea{font:inherit;color:inherit}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:1320px;margin:0 auto;padding:0 1.25rem}.site-header{position:sticky;top:0;z-index:1000;background:var(--bg);border-bottom:1px solid var(--border);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:1.5rem}.brand{display:flex;align-items:center;gap:0.75rem;font-family:var(--font-head);font-size:1.35rem;font-weight:700;color:var(--text);letter-spacing:-0.02em}.brand-badge{background:linear-gradient(135deg,var(--primary),var(--accent));color:#ffffff;padding:0.35rem 0.65rem;border-radius:var(--radius-sm);font-size:0.85rem;font-weight:800;letter-spacing:0.05em;text-transform:uppercase}.nav-menu{display:flex;align-items:center;gap:1.25rem;list-style:none}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:0.4rem;padding:0.5rem 0.75rem;font-size:0.925rem;font-weight:500;color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer}.nav-link:hover,.nav-link.active{color:var(--text);background:var(--surface-hover)}.dropdown-menu{position:absolute;top:100%;left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:1.25rem;display:none;z-index:1050;width:680px;max-width:90vw}.nav-item:hover .dropdown-menu,.nav-item:focus-within .dropdown-menu{display:block}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0.65rem}.mega-link{display:flex;align-items:center;gap:0.6rem;padding:0.55rem 0.75rem;border-radius:var(--radius-sm);font-size:0.85rem;color:var(--text);border:1px solid transparent}.mega-link:hover{background:var(--surface-hover);border-color:var(--border);color:var(--primary);transform:translateX(3px)}.nav-actions{display:flex;align-items:center;gap:0.75rem}.btn-icon{background:var(--surface);border:1px solid var(--border);color:var(--text);width:40px;height:40px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.btn-icon:hover{background:var(--surface-hover);border-color:var(--border-focus)}.btn-mobile-toggle{display:none}.breadcrumb-bar{padding:0.85rem 0;background:var(--bg-subtle);border-bottom:1px solid var(--border);font-size:0.85rem}.breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;gap:0.5rem;list-style:none;color:var(--text-muted)}.breadcrumb-separator{color:var(--text-faint)}.breadcrumb-list a:hover{color:var(--primary)}.breadcrumb-current{color:var(--text);font-weight:600}.hero-section{padding:2.5rem 0 3rem}.hero-header{text-align:center;max-width:850px;margin:0 auto 2.5rem}.hero-tagline{display:inline-flex;align-items:center;gap:0.5rem;padding:0.35rem 0.85rem;border-radius:9999px;background:var(--primary-light);border:1px solid rgba(99,102,241,0.3);color:var(--primary);font-size:0.825rem;font-weight:600;margin-bottom:1rem}.hero-title{font-family:var(--font-head);font-size:clamp(2rem,4vw,2.75rem);font-weight:800;line-height:1.2;letter-spacing:-0.03em;margin-bottom:1rem;color:var(--text)}.hero-title span{background:linear-gradient(135deg,#6366f1,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-desc{font-size:1.05rem;color:var(--text-muted);line-height:1.6}.workspace-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden}.workspace-grid{display:grid;grid-template-columns:1fr 1fr;min-height:620px}.workspace-pane{display:flex;flex-direction:column;border-right:1px solid var(--border)}.workspace-pane:last-child{border-right:none}.pane-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.75rem;padding:0.85rem 1.25rem;background:var(--bg-subtle);border-bottom:1px solid var(--border)}.toolbar-group{display:flex;align-items:center;gap:0.5rem}.pane-title{font-size:0.875rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted);display:flex;align-items:center;gap:0.4rem}.select-custom{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:0.35rem 0.65rem;border-radius:var(--radius-sm);font-size:0.825rem;cursor:pointer}.select-custom:focus{outline:none;border-color:var(--border-focus)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.45rem;padding:0.45rem 0.85rem;border-radius:var(--radius-sm);font-size:0.85rem;font-weight:600;cursor:pointer;border:1px solid transparent;transition:var(--transition);white-space:nowrap}.btn-primary{background:var(--primary);color:#ffffff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-secondary:hover{background:var(--surface-hover);border-color:var(--border-focus)}.btn-accent{background:var(--accent);color:#ffffff}.btn-accent:hover{opacity:0.9}.btn-danger{background:transparent;border-color:transparent;color:var(--danger)}.btn-danger:hover{background:var(--danger-light)}.btn-sm{padding:0.3rem 0.6rem;font-size:0.775rem}.tabs-nav{display:flex;align-items:center;gap:0.25rem}.tab-btn{background:transparent;border:none;color:var(--text-muted);padding:0.45rem 0.75rem;border-radius:var(--radius-sm);font-size:0.825rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:0.35rem}.tab-btn:hover{color:var(--text);background:var(--surface-hover)}.tab-btn.active{color:var(--primary);background:var(--primary-light)}.editor-wrapper{position:relative;flex:1;display:flex;flex-direction:column}.editor-textarea{width:100%;flex:1;min-height:480px;background:var(--surface);color:var(--text);font-family:var(--font-mono);font-size:0.875rem;line-height:1.6;padding:1.25rem;border:none;resize:none;outline:none;white-space:pre-wrap;word-break:break-all}.editor-textarea::placeholder{color:var(--text-faint)}.output-container{flex:1;position:relative;overflow:auto;min-height:480px;background:var(--surface);display:flex;flex-direction:column}.output-view{display:none;padding:1.25rem;flex:1}.output-view.active{display:block}.code-pre{font-family:var(--font-mono);font-size:0.875rem;line-height:1.6;color:var(--text);white-space:pre-wrap;word-break:break-word;user-select:text}.tree-filter-bar{display:flex;align-items:center;gap:0.5rem;margin-bottom:1rem;padding-bottom:0.75rem;border-bottom:1px solid var(--border)}.input-filter{flex:1;background:var(--bg-subtle);border:1px solid var(--border);color:var(--text);padding:0.4rem 0.75rem;border-radius:var(--radius-sm);font-size:0.825rem}.input-filter:focus{outline:none;border-color:var(--border-focus)}.tree-node{font-family:var(--font-mono);font-size:0.85rem;line-height:1.8;margin-left:1.25rem;position:relative}.tree-root{margin-left:0}.tree-row{display:flex;align-items:baseline;gap:0.4rem;padding:0.15rem 0.35rem;border-radius:var(--radius-sm);cursor:default}.tree-row:hover{background:var(--surface-hover)}.tree-toggle{cursor:pointer;user-select:none;display:inline-block;width:16px;text-align:center;color:var(--text-muted);font-weight:700;transition:transform 0.15s ease}.tree-toggle.collapsed{transform:rotate(-90deg)}.tree-key{color:#93c5fd;font-weight:600}[data-theme="light"] .tree-key{color:#1d4ed8}.tree-badge{font-size:0.72rem;font-weight:600;padding:0.1rem 0.4rem;border-radius:4px;text-transform:uppercase}.badge-str{background:var(--success-light);color:var(--success)}.badge-int{background:var(--primary-light);color:var(--primary)}.badge-float{background:rgba(14,165,233,0.15);color:#0ea5e9}.badge-bool{background:var(--warning-light);color:var(--warning)}.badge-null{background:rgba(100,116,139,0.2);color:var(--text-muted)}.badge-arr{background:var(--accent-light);color:var(--accent)}.badge-obj{background:rgba(168,85,247,0.15);color:#a855f7}.tree-val-str{color:#a7f3d0;word-break:break-all}[data-theme="light"] .tree-val-str{color:#047857}.tree-val-num{color:#fde047}[data-theme="light"] .tree-val-num{color:#b45309}.tree-val-bool{color:#f472b6;font-weight:600}[data-theme="light"] .tree-val-bool{color:#db2777}.tree-val-null{color:var(--text-faint);font-style:italic}.table-flat{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:0.825rem}.table-flat th,.table-flat td{padding:0.65rem 0.85rem;text-align:left;border-bottom:1px solid var(--border)}.table-flat th{background:var(--bg-subtle);color:var(--text-muted);font-weight:600}.table-flat tr:hover td{background:var(--surface-hover)}.status-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.75rem;padding:0.65rem 1.25rem;background:var(--bg-subtle);border-top:1px solid var(--border);font-size:0.8rem;color:var(--text-muted)}.status-pill{display:inline-flex;align-items:center;gap:0.4rem;padding:0.2rem 0.6rem;border-radius:9999px;font-weight:600;font-size:0.75rem}.status-pill.valid{background:var(--success-light);color:var(--success)}.status-pill.error{background:var(--danger-light);color:var(--danger)}.status-metrics{display:flex;align-items:center;gap:1rem}.metric-item{display:flex;align-items:center;gap:0.3rem}.metric-val{color:var(--text);font-weight:600}.banner-alert{padding:0.75rem 1.25rem;font-size:0.85rem;border-bottom:1px solid var(--border);display:none;align-items:flex-start;gap:0.65rem}.banner-alert.show{display:flex}.banner-alert.error{background:var(--danger-light);color:var(--danger);border-color:rgba(239,68,68,0.3)}.banner-alert.warning{background:var(--warning-light);color:var(--warning);border-color:rgba(245,158,11,0.3)}.banner-alert.success{background:var(--success-light);color:var(--success);border-color:rgba(16,185,129,0.3)}.section-tools{padding:3.5rem 0;background:var(--bg-subtle);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.section-head{text-align:center;margin-bottom:2.5rem}.section-title{font-family:var(--font-head);font-size:1.85rem;font-weight:700;color:var(--text);margin-bottom:0.5rem}.section-desc{color:var(--text-muted);font-size:0.95rem}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1rem}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1rem 1.25rem;display:flex;align-items:center;gap:0.85rem;transition:var(--transition)}.tool-card:hover{transform:translateY(-2px);border-color:var(--border-focus);box-shadow:var(--shadow)}.tool-icon{width:38px;height:38px;border-radius:var(--radius-sm);background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.tool-info{overflow:hidden}.tool-name{font-size:0.9rem;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tool-cat{font-size:0.75rem;color:var(--text-muted)}.section-features{padding:4.5rem 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.5rem}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.75rem;transition:var(--transition)}.feature-card:hover{border-color:var(--border-focus);transform:translateY(-3px);box-shadow:var(--shadow)}.feature-icon-box{width:48px;height:48px;border-radius:var(--radius-md);background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:1.25rem}.feature-title{font-family:var(--font-head);font-size:1.2rem;font-weight:700;margin-bottom:0.6rem;color:var(--text)}.feature-desc{font-size:0.925rem;color:var(--text-muted);line-height:1.6}.section-how{padding:4.5rem 0;background:var(--bg-subtle);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.step-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.75rem;position:relative}.step-num{font-family:var(--font-head);font-size:2.25rem;font-weight:800;color:var(--primary);line-height:1;margin-bottom:1rem;opacity:0.85}.step-title{font-size:1.1rem;font-weight:700;margin-bottom:0.5rem;color:var(--text)}.step-desc{font-size:0.875rem;color:var(--text-muted);line-height:1.6}.section-seo{padding:4.5rem 0}.seo-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2.5rem;max-width:960px;margin:0 auto}.seo-title{font-family:var(--font-head);font-size:1.6rem;font-weight:700;margin-bottom:1.25rem;color:var(--text)}.seo-content p{color:var(--text-muted);font-size:0.975rem;line-height:1.8;margin-bottom:1.25rem}.seo-content p:last-child{margin-bottom:0}.seo-content code{background:var(--bg-subtle);color:var(--primary);padding:0.2rem 0.4rem;border-radius:4px;font-family:var(--font-mono);font-size:0.85em}.section-faq{padding:4.5rem 0;background:var(--bg-subtle);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.faq-list{max-width:850px;margin:0 auto;display:flex;flex-direction:column;gap:1rem}.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}.faq-question{width:100%;padding:1.25rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;background:transparent;border:none;text-align:left;font-size:1.05rem;font-weight:600;color:var(--text);cursor:pointer}.faq-icon{transition:transform 0.2s ease;color:var(--primary);flex-shrink:0}.faq-item.active .faq-icon{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease;padding:0 1.5rem;color:var(--text-muted);font-size:0.925rem;line-height:1.7}.faq-item.active .faq-answer{max-height:400px;padding-bottom:1.5rem}.section-cta{padding:4.5rem 0;text-align:center;position:relative;background:linear-gradient(180deg,var(--bg) 0%,var(--surface) 100%)}.cta-box{max-width:780px;margin:0 auto;padding:3rem 2rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.cta-title{font-family:var(--font-head);font-size:2rem;font-weight:800;margin-bottom:1rem;color:var(--text)}.cta-desc{color:var(--text-muted);font-size:1.05rem;margin-bottom:2rem}.cta-btns{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:1rem}.cta-btn-lg{padding:0.85rem 1.75rem;font-size:1rem;border-radius:var(--radius-md)}.site-footer{background:var(--bg-subtle);border-top:1px solid var(--border);padding:4rem 0 2rem;margin-top:auto}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:2.5rem;margin-bottom:3rem}.footer-brand p{color:var(--text-muted);font-size:0.9rem;margin-top:0.75rem;max-width:320px}.footer-col-title{font-size:0.95rem;font-weight:700;color:var(--text);margin-bottom:1.25rem;letter-spacing:0.02em}.footer-links{list-style:none;display:flex;flex-direction:column;gap:0.65rem}.footer-links a{font-size:0.875rem;color:var(--text-muted)}.footer-links a:hover{color:var(--primary);transform:translateX(2px)}.footer-bottom{padding-top:2rem;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:0.825rem;color:var(--text-muted)}.trademark-text{font-size:0.78rem;color:var(--text-faint);margin-top:0.5rem;max-width:800px}.cookie-modal{position:fixed;bottom:1.5rem;left:1.5rem;right:1.5rem;max-width:580px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem 1.5rem;box-shadow:var(--shadow-lg);z-index:9999;display:flex;align-items:center;justify-content:space-between;gap:1.25rem;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);transform:translateY(150%);transition:transform 0.35s cubic-bezier(0.16,1,0.3,1)}.cookie-modal.active{transform:translateY(0)}.cookie-text{font-size:0.85rem;color:var(--text-muted);line-height:1.5}.cookie-text a{color:var(--primary);text-decoration:underline}.cookie-actions{display:flex;align-items:center;gap:0.5rem;flex-shrink:0}.toast{position:fixed;top:1.5rem;right:1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:0.75rem 1.25rem;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:0.65rem;font-size:0.875rem;font-weight:500;z-index:10000;transform:translateY(-120%);transition:transform 0.25s cubic-bezier(0.16,1,0.3,1)}.toast.show{transform:translateY(0)}.toast.success{border-color:var(--success);color:var(--success)}.toast.info{border-color:var(--primary);color:var(--primary)}@media (max-width:1024px){.workspace-grid{grid-template-columns:1fr}.workspace-pane{border-right:none;border-bottom:1px solid var(--border)}.workspace-pane:last-child{border-bottom:none}.footer-grid{grid-template-columns:1fr 1fr}}@media (max-width:768px){.nav-menu{position:fixed;top:70px;left:0;right:0;bottom:0;background:var(--bg);flex-direction:column;align-items:stretch;padding:1.5rem;overflow-y:auto;display:none;z-index:999}.nav-menu.open{display:flex}.dropdown-menu{position:static;width:100%;max-width:100%;box-shadow:none;border-left:none;border-right:none;border-radius:var(--radius-sm);display:block;margin-top:0.5rem;padding:0.75rem}.mega-grid{grid-template-columns:1fr}.btn-mobile-toggle{display:flex}.footer-grid{grid-template-columns:1fr}.cookie-modal{flex-direction:column;align-items:stretch}.cookie-actions{justify-content:flex-end}}