:root{--bg-dark:#050510;--card:#ffffff05;--input-bg:#ffffff08;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--border:#ffffff0f;--cyan:#22d3ee;--purple:#a855f7;--accent:var(--calc-color-tools);--font-mono:"JetBrains Mono", "Courier New", monospace}body{background:var(--calc-bg-page);color:var(--calc-text-primary);min-height:100vh}.dashboard-container{max-width:1600px;margin:0 auto;padding:80px 1.5rem 2rem}.breadcrumb{color:var(--calc-text-dim);margin-bottom:1.25rem;font-size:.78rem}.breadcrumb a{color:var(--calc-text-dim);text-decoration:none;transition:color .2s}.breadcrumb a:hover{color:var(--calc-cyan)}.breadcrumb .sep{opacity:.4;margin:0 6px}.tool-hero{margin-bottom:1.5rem}.tool-hero__title{color:var(--calc-text-primary);margin:0 0 8px;font-size:2rem;font-weight:800;line-height:1.2}.tool-hero__accent{background:linear-gradient(135deg, var(--calc-cyan), var(--purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.tool-hero__subtitle{color:var(--calc-text-dim);max-width:700px;margin:0;font-size:.95rem;line-height:1.6}.tool-tabs{border-bottom:1px solid var(--calc-border-default);scrollbar-width:none;gap:4px;margin-bottom:20px;display:flex;overflow-x:auto}.tool-tabs::-webkit-scrollbar{display:none}.tool-tab-btn{color:var(--calc-text-dim);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:6px;padding:10px 18px;font-size:.85rem;font-weight:600;transition:color .2s,border-color .2s;display:flex}.tool-tab-btn:hover{color:var(--calc-text-primary)}.tool-tab-btn.active{color:var(--calc-cyan);border-bottom-color:var(--calc-cyan)}.tool-tab-content{display:none}.tool-tab-content.active{display:block}.tool-btn{color:var(--calc-text-dim);cursor:pointer;background:#ffffff0a;border:1px solid #ffffff14;border-radius:8px;align-items:center;gap:6px;padding:8px 16px;font-size:.82rem;font-weight:600;transition:background .2s,border-color .2s,color .2s;display:inline-flex}.tool-btn:hover{color:var(--calc-text-primary);background:#ffffff14;border-color:#ffffff26}.tool-btn--primary{color:var(--calc-cyan);background:#22d3ee1a;border-color:#22d3ee4d}.tool-btn--primary:hover{border-color:var(--calc-cyan);background:#22d3ee2e}.md-toolbar{border:1px solid var(--calc-border-default);background:#ffffff08;border-radius:10px 10px 0 0;flex-wrap:wrap;align-items:center;gap:4px;padding:8px 12px;display:flex}.md-toolbar-btn{width:32px;height:32px;color:var(--calc-text-dim);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;font-size:.85rem;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.md-toolbar-btn:hover{color:var(--calc-cyan);background:#22d3ee1a;border-color:#22d3ee4d}.md-toolbar-btn:active{background:#22d3ee2e}.md-toolbar-sep{background:#ffffff14;flex-shrink:0;width:1px;height:20px;margin:0 4px}.md-split{border:1px solid var(--calc-border-default);border-top:none;border-radius:0 0 10px 10px;grid-template-columns:1fr 1fr;gap:0;min-height:500px;display:grid;overflow:hidden}.md-split__editor{border-right:1px solid var(--calc-border-default);flex-direction:column;display:flex}.md-split__preview{flex-direction:column;display:flex;overflow:hidden}.md-pane-label{text-transform:uppercase;letter-spacing:.08em;color:var(--calc-text-muted);border-bottom:1px solid var(--calc-border-default);font-size:.72rem;font-weight:700;font-family:var(--font-mono);background:#ffffff05;padding:8px 14px;display:block}.md-textarea{background:var(--input-bg);width:100%;min-height:460px;color:var(--calc-text-primary);font-family:var(--font-mono);tab-size:2;resize:none;border:none;outline:none;flex:1;padding:16px;font-size:.84rem;line-height:1.7}.md-textarea::placeholder{color:#ffffff4d}.md-preview{color:var(--calc-text-primary);background:#ffffff03;flex:1;padding:16px 20px;font-size:.9rem;line-height:1.7;overflow-y:auto}.md-preview h1{border-bottom:1px solid var(--calc-border-default);margin:0 0 .6em;padding-bottom:.3em;font-size:1.8rem;font-weight:800}.md-preview h2{border-bottom:1px solid var(--calc-border-default);margin:1.2em 0 .5em;padding-bottom:.25em;font-size:1.4rem;font-weight:700}.md-preview h3{margin:1em 0 .4em;font-size:1.15rem;font-weight:700}.md-preview h4{margin:1em 0 .3em;font-size:1rem;font-weight:700}.md-preview h5,.md-preview h6{color:var(--calc-text-dim);margin:.8em 0 .3em;font-size:.9rem;font-weight:700}.md-preview p{margin:0 0 1em}.md-preview a{color:var(--calc-cyan);text-underline-offset:2px;text-decoration:underline}.md-preview a:hover{color:#fff}.md-preview strong{font-weight:700}.md-preview em{font-style:italic}.md-preview img{border-radius:8px;max-width:100%;margin:.5em 0}.md-preview ul,.md-preview ol{margin:0 0 1em;padding-left:1.6em}.md-preview li{margin:.3em 0}.md-preview li>ul,.md-preview li>ol{margin:.2em 0 0}.md-preview blockquote{border-left:3px solid var(--calc-cyan);color:var(--calc-text-dim);background:#22d3ee0d;border-radius:0 6px 6px 0;margin:0 0 1em;padding:10px 16px}.md-preview blockquote p{margin:0}.md-preview code{font-family:var(--font-mono);color:var(--calc-cyan);background:#ffffff12;border-radius:4px;padding:2px 6px;font-size:.85em}.md-preview pre{border:1px solid var(--calc-border-default);background:#0006;border-radius:8px;margin:0 0 1em;padding:14px 16px;overflow-x:auto}.md-preview pre code{color:var(--calc-text-primary);background:0 0;padding:0;font-size:.82rem;line-height:1.6}.md-preview hr{border:none;border-top:1px solid var(--calc-border-default);margin:1.5em 0}.md-preview table{border-collapse:collapse;width:100%;margin:0 0 1em;font-size:.85rem}.md-preview th{text-align:left;border-bottom:2px solid var(--calc-border-default);background:#ffffff0d;padding:8px 12px;font-weight:700}.md-preview td{border-bottom:1px solid var(--calc-border-default);padding:8px 12px}.md-preview tr:hover td{background:#ffffff05}.md-preview input[type=checkbox]{accent-color:var(--calc-cyan);margin-right:6px}.md-stats{font-size:.74rem;font-family:var(--font-mono);color:var(--calc-text-muted);border:1px solid var(--calc-border-default);background:#ffffff05;border-top:none;border-radius:0 0 10px 10px;align-items:center;gap:8px;margin-top:-1px;padding:8px 14px;display:flex}.md-stats__sep{opacity:.3}.html-output-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.html-output-pre{border:1px solid var(--calc-border-default);background:#00000059;border-radius:10px;max-height:600px;padding:16px;overflow:auto}.html-output-code{font-family:var(--font-mono);color:var(--calc-text-primary);white-space:pre-wrap;word-break:break-all;font-size:.82rem;line-height:1.7}.html-output-code .html-tag{color:#ff79c6}.html-output-code .html-attr{color:#8be9fd}.html-output-code .html-string{color:#f1fa8c}.html-output-code .html-comment{color:#6272a4;font-style:italic}.export-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.export-card{border:1px solid var(--calc-border-default);text-align:center;background:#ffffff05;border-radius:14px;padding:28px 24px;transition:border-color .2s,background .2s}.export-card:hover{background:#22d3ee08;border-color:#22d3ee4d}.export-card__icon{width:56px;height:56px;color:var(--calc-cyan);background:#22d3ee14;border-radius:14px;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}.export-card__title{color:var(--calc-text-primary);margin:0 0 6px;font-size:1.05rem;font-weight:700}.export-card__desc{color:var(--calc-text-dim);margin:0 0 18px;font-size:.82rem;line-height:1.5}.export-card__btn{justify-content:center;width:100%}.section-title{color:var(--calc-text-primary);margin:0 0 1.2rem;font-size:1.4rem;font-weight:800}.how-section{padding:2.5rem 0 2rem}.how-steps{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;display:grid}.how-step{border:1px solid var(--calc-border-default);background:#ffffff05;border-radius:12px;padding:20px}.how-step__number{width:32px;height:32px;color:var(--calc-cyan);font-family:var(--font-mono);background:#22d3ee1f;border-radius:8px;justify-content:center;align-items:center;margin-bottom:12px;font-size:.9rem;font-weight:800;display:flex}.how-step__title{color:var(--calc-text-primary);margin:0 0 6px;font-size:.95rem;font-weight:700}.how-step__desc{color:var(--calc-text-dim);margin:0;font-size:.82rem;line-height:1.6}.faq-section{padding:2rem 0}.faq-list{flex-direction:column;display:flex}.faq-item-enhanced{border-bottom:1px solid #ffffff0f}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item-enhanced[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--calc-cyan)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}.tool-toast{z-index:9999;border-radius:10px;max-width:340px;padding:12px 20px;font-size:.85rem;font-weight:600;animation:.3s ease-out toastIn;position:fixed;bottom:24px;right:24px;box-shadow:0 8px 30px #0000004d}.tool-toast--success{color:var(--calc-cyan);background:#22d3ee26;border:1px solid #22d3ee66}.tool-toast--warn{color:#ffc107;background:#ffc10726;border:1px solid #ffc10766}.tool-toast--error{color:#ef4444;background:#dc262626;border:1px solid #dc262666}@keyframes toastIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media (width<=900px){.md-split{grid-template-columns:1fr;min-height:auto}.md-split__editor{border-right:none;border-bottom:1px solid var(--calc-border-default)}.md-textarea,.md-preview{min-height:300px}.export-grid{grid-template-columns:1fr}}@media (width<=600px){.dashboard-container{padding:72px 1rem 1.5rem}.tool-hero__title{font-size:1.5rem}.md-toolbar{gap:2px;padding:6px 8px}.md-toolbar-btn{width:28px;height:28px;font-size:.78rem}.md-textarea{min-height:250px;padding:12px;font-size:.8rem}.md-preview{padding:12px 14px}}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#f0f4f9;--text-main:#0f172a;--text-dim:#475569;--text-muted:#64748b;--border:#0000001a;--cyan:#0891b2;--purple:#7c3aed;--accent:var(--calc-color-tools)}[data-theme=light] .glass-navbar{backdrop-filter:blur(12px);background:#fffffff2;border-bottom-color:#00000014}[data-theme=light] .tool-hero__accent{background:linear-gradient(135deg,#0891b2,#7c3aed);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}[data-theme=light] .tool-tab-btn{color:#64748b}[data-theme=light] .tool-tab-btn:hover{color:#0f172a}[data-theme=light] .tool-tab-btn.active{color:#0891b2;border-bottom-color:#0891b2}[data-theme=light] .tool-btn{color:#475569;background:#f0f4f9;border-color:#0000001f}[data-theme=light] .tool-btn:hover{color:#0f172a;background:#e2e8f0;border-color:#0003}[data-theme=light] .tool-btn--primary{color:#0891b2;background:#0891b21a;border-color:#0891b24d}[data-theme=light] .tool-btn--primary:hover{background:#0891b22e;border-color:#0891b2}[data-theme=light] .md-toolbar{background:#f8fafc;border-color:#0000001a}[data-theme=light] .md-toolbar-btn{color:#475569}[data-theme=light] .md-toolbar-btn:hover{color:#0891b2;background:#0891b21a;border-color:#0891b24d}[data-theme=light] .md-toolbar-sep{background:#0000001a}[data-theme=light] .md-split{border-color:#0000001f;box-shadow:0 2px 12px #0000000f}[data-theme=light] .md-split__editor{border-right-color:#0000001a}[data-theme=light] .md-pane-label{color:#64748b;background:#f0f4f9;border-bottom-color:#00000014}[data-theme=light] .md-textarea{color:#0f172a;background:#fff}[data-theme=light] .md-textarea::placeholder{color:#00000059}[data-theme=light] .md-preview{color:#0f172a;background:#fff}[data-theme=light] .md-preview a{color:#0891b2}[data-theme=light] .md-preview a:hover{color:#0f172a}[data-theme=light] .md-preview h1,[data-theme=light] .md-preview h2{border-bottom-color:#0000001a}[data-theme=light] .md-preview h5,[data-theme=light] .md-preview h6{color:#64748b}[data-theme=light] .md-preview blockquote{color:#475569;background:#0891b20f;border-left-color:#0891b2}[data-theme=light] .md-preview code{color:#0891b2;background:#edf2f9}[data-theme=light] .md-preview pre{background:#1e293b;border-color:#0000001f}[data-theme=light] .md-preview pre code{color:#e2e8f0}[data-theme=light] .md-preview th{color:#0f172a;background:#f0f4f9;border-bottom-color:#00000026}[data-theme=light] .md-preview td{color:#334155;border-bottom-color:#00000014}[data-theme=light] .md-preview tr:hover td{background:#f8fafc}[data-theme=light] .md-preview hr{border-top-color:#0000001a}[data-theme=light] .md-stats{color:#64748b;background:#f8fafc;border-color:#0000001a}[data-theme=light] .html-output-pre{background:#1e293b;border-color:#0000001f}[data-theme=light] .html-output-code{color:#e2e8f0}[data-theme=light] .export-card{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .export-card:hover{background:#fff;border-color:#0891b259;box-shadow:0 2px 10px #0891b214}[data-theme=light] .export-card__icon{color:#0891b2;background:#0891b21a}[data-theme=light] .export-card__title{color:#0f172a}[data-theme=light] .export-card__desc{color:#64748b}[data-theme=light] .how-step{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .how-step__number{color:#0891b2;background:#0891b21a}[data-theme=light] .how-step__title{color:#0f172a}[data-theme=light] .how-step__desc{color:#475569}[data-theme=light] .section-title{color:#0f172a}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item-enhanced{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item-enhanced:hover{border-color:#0891b259;box-shadow:0 2px 10px #0891b214}[data-theme=light] .faq-item-enhanced[open]{border-color:#0891b266 #0891b266 #0891b266 #0891b2;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0891b21a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item-enhanced[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .tool-toast--success{color:#0891b2;background:#eff9fb;border-color:#0891b266;box-shadow:0 4px 20px #0000001a}[data-theme=light] .tool-toast--warn{color:#155e75;background:#fffbeb;border-color:#b4530966;box-shadow:0 4px 20px #0000001a}[data-theme=light] .tool-toast--error{color:#dc2626;background:#fff1f2;border-color:#dc262666;box-shadow:0 4px 20px #0000001a}[data-theme=light] .breadcrumb a:hover{color:#0891b2}