.x2b64-hero-pills{display:flex;flex-wrap:wrap;gap:0.5rem;margin:0;padding:0;list-style:none;}
.x2b64-hero-pills li{font-size:0.75rem;font-weight:600;letter-spacing:0.02em;text-transform:uppercase;padding:0.35rem 0.65rem;border-radius:999px;background:linear-gradient(135deg,rgba(37,99,235,0.12),rgba(14,165,233,0.1));color:var(--primary,#2563eb);border:1px solid rgba(37,99,235,0.2);}
.x2b64-workbench{display:flex;flex-direction:column;gap:1rem;margin-bottom:2.5rem;}
.x2b64-rail{display:flex;align-items:center;gap:0.5rem;font-size:0.6875rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--text-muted,#64748b);}
.x2b64-rail span{color:var(--text-main,#0f172a);}
.x2b64-rail i{font-style:normal;opacity:0.45;}
.x2b64-card{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-soft,0 4px 24px rgba(15,23,42,0.06));}
.x2b64-card-head{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;flex-wrap:wrap;padding:0.85rem 1rem;border-bottom:1px solid var(--border,#e2e8f0);background:linear-gradient(180deg,var(--surface-muted,#f8fafc),var(--surface,#fff));}
.x2b64-card-label{font-size:0.8125rem;font-weight:700;color:var(--text-main,#0f172a);}
.x2b64-card-hint{font-size:0.75rem;color:var(--text-muted,#64748b);margin:0;}
.x2b64-editor-host{min-height:min(42vh,320px);position:relative;}
@media (min-width:768px){.x2b64-editor-host{min-height:340px;}}
.x2b64-editor-host .ace_editor{font-size:13px!important;border-radius:0;}
.x2b64-editor-host .ace-xcode .ace_gutter{background:var(--surface-muted,#f1f5f9);color:var(--text-muted,#94a3b8);}
.x2b64-editor-host .ace-xcode .ace_content{background-color:#fafbfc;}
.x2b64-editor-host .ace-xcode .ace_tag{color:#1d4ed8;}
.x2b64-editor-host .ace-xcode .ace_string{color:#b91c1c;}
.x2b64-editor-host .ace-xcode .ace_constant.ace_numeric{color:#047857;}
.x2b64-editor-host .ace-xcode .ace_keyword{color:#15803d;}
.x2b64-metrics{display:flex;gap:0.5rem;overflow-x:auto;padding:0.25rem 0;-webkit-overflow-scrolling:touch;scrollbar-width:thin;}
.x2b64-metrics::-webkit-scrollbar{height:4px;}
.x2b64-metrics::-webkit-scrollbar-thumb{background:var(--border,#cbd5e1);border-radius:4px;}
.x2b64-metric{flex:0 0 auto;display:flex;flex-direction:column;gap:0.15rem;padding:0.65rem 0.9rem;border-radius:12px;background:var(--surface-muted,#f8fafc);border:1px solid var(--border,#e2e8f0);min-width:108px;}
.x2b64-metric-label{font-size:0.625rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-muted,#64748b);}
.x2b64-metric-value{font-size:0.9375rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-main,#0f172a);}
.x2b64-switches{display:flex;flex-direction:column;gap:0.65rem;padding:0.85rem 1rem;background:var(--surface-muted,#f8fafc);border:1px solid var(--border,#e2e8f0);border-radius:14px;}
@media (min-width:576px){.x2b64-switches{flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:space-between;}}
.x2b64-switch{display:inline-flex;align-items:center;gap:0.5rem;font-size:0.8125rem;font-weight:600;color:var(--text-main,#334155);cursor:pointer;-webkit-tap-highlight-color:transparent;user-select:none;}
.x2b64-switch input{width:2.5rem;height:1.35rem;margin:0;appearance:none;background:var(--border,#cbd5e1);border-radius:999px;position:relative;transition:background 0.2s;flex-shrink:0;}
.x2b64-switch input::after{content:"";position:absolute;top:2px;left:2px;width:calc(1.35rem - 4px);height:calc(1.35rem - 4px);background:#fff;border-radius:50%;box-shadow:0 1px 3px rgba(0,0,0,0.15);transition:transform 0.2s;}
.x2b64-switch input:checked{background:var(--primary,#2563eb);}
.x2b64-switch input:checked::after{transform:translateX(1.15rem);}
.x2b64-switch input:focus-visible{outline:2px solid var(--primary,#2563eb);outline-offset:2px;}
.x2b64-actions{display:none;}
@media (min-width:768px){.x2b64-actions{display:flex;flex-wrap:wrap;gap:0.5rem;align-items:center;}}
.x2b64-btn{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;padding:0.6rem 1rem;font-size:0.875rem;font-weight:700;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:background 0.2s,border-color 0.2s,transform 0.15s;-webkit-tap-highlight-color:transparent;}
.x2b64-btn:active{transform:scale(0.98);}
.x2b64-btn-primary{color:#fff;background:var(--primary,#2563eb);border-color:var(--primary,#2563eb);}
.x2b64-btn-primary:hover:not(:disabled){background:var(--primary-dark,#1d4ed8);border-color:var(--primary-dark,#1d4ed8);}
.x2b64-btn-ghost{color:var(--text-main,#334155);background:var(--surface,#fff);border-color:var(--border,#e2e8f0);}
.x2b64-btn-ghost:hover:not(:disabled){background:var(--surface-muted,#f1f5f9);}
.x2b64-btn-accent{color:#fff;background:linear-gradient(135deg,#0d9488,#0891b2);border-color:transparent;}
.x2b64-btn-accent:hover:not(:disabled){filter:brightness(1.05);}
.x2b64-output-wrap{padding:0;}
.x2b64-output-head{padding:0.85rem 1rem;border-bottom:1px solid var(--border,#e2e8f0);display:flex;align-items:center;justify-content:space-between;gap:0.5rem;flex-wrap:wrap;}
.x2b64-output{width:100%;min-height:140px;max-height:min(38vh,280px);padding:1rem;font-family:ui-monospace,"Cascadia Code","SF Mono",Menlo,Consolas,monospace;font-size:0.8125rem;line-height:1.55;resize:vertical;border:none;background:#0f172a;color:#e2e8f0;margin:0;box-sizing:border-box;}
.x2b64-output:focus{outline:none;box-shadow:inset 0 0 0 2px var(--primary,#2563eb);}
.x2b64-output::placeholder{color:#64748b;}
.x2b64-banner{margin:0 1rem 1rem;padding:0.75rem 1rem;border-radius:10px;font-size:0.875rem;line-height:1.45;}
.x2b64-banner[hidden]{display:none!important;}
.x2b64-banner--ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0;}
.x2b64-banner--err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca;}
.x2b64-dock{position:fixed;left:0;right:0;bottom:0;z-index:50;display:flex;gap:0.5rem;padding:0.65rem 1rem;padding-bottom:calc(0.65rem + env(safe-area-inset-bottom));background:rgba(255,255,255,0.92);backdrop-filter:blur(10px);border-top:1px solid var(--border,#e2e8f0);box-shadow:0 -8px 32px rgba(15,23,42,0.08);}
.x2b64-dock .x2b64-btn{flex:1;min-height:48px;}
@media (min-width:768px){.x2b64-dock{display:none;}}
.x2b64-dock-spacer{height:0;}
@media (max-width:767px){.x2b64-dock-spacer{height:calc(72px + env(safe-area-inset-bottom));}}
.x2b64-prose{margin-top:2rem;}
.x2b64-prose h2{font-size:1.35rem;font-weight:800;margin-top:2.25rem;margin-bottom:0.75rem;color:var(--text-main,#0f172a);letter-spacing:-0.02em;}
.x2b64-prose h3{font-size:1.05rem;font-weight:700;margin-top:1.5rem;margin-bottom:0.5rem;color:var(--text-main,#1e293b);}
.x2b64-prose p,.x2b64-prose li{font-size:0.9375rem;line-height:1.65;color:var(--text-main,#334155);}
.x2b64-prose p{margin-bottom:0.85rem;}
.x2b64-callout{margin:1.25rem 0;padding:1rem 1.15rem;border-radius:12px;border-left:4px solid var(--primary,#2563eb);background:var(--surface-muted,#f8fafc);}
.x2b64-callout--warn{border-left-color:#d97706;background:#fffbeb;}
.x2b64-dl{display:grid;gap:0.75rem;margin:1rem 0;}
@media (min-width:640px){.x2b64-dl{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);}}
.x2b64-dl div{margin:0;padding:0.75rem 0;border-bottom:1px solid var(--border,#e2e8f0);}
.x2b64-dl dt{font-size:0.8125rem;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:var(--text-muted,#64748b);}
.x2b64-dl dd{margin:0.35rem 0 0;font-size:0.9375rem;color:var(--text-main,#334155);}
.x2b64-table-wrap{overflow-x:auto;margin:1rem 0;border-radius:12px;border:1px solid var(--border,#e2e8f0);}
.x2b64-table{width:100%;border-collapse:collapse;font-size:0.875rem;}
.x2b64-table th,.x2b64-table td{padding:0.65rem 0.85rem;text-align:left;border-bottom:1px solid var(--border,#e2e8f0);}
.x2b64-table th{background:var(--surface-muted,#f8fafc);font-weight:700;color:var(--text-main,#0f172a);}
.x2b64-table tr:last-child td{border-bottom:none;}
.x2b64-kicker{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--primary,#2563eb);margin-bottom:0.35rem;}
.x2b64-meta-line{font-size:0.8125rem;color:var(--text-muted,#64748b);margin-top:2rem;}
.x2b64-prose .faq-section{margin-top:2.5rem;}
.x2b64-prose .related-tools-section{margin-top:2rem;}
.x2b64-prepair{display:flex;flex-direction:column;gap:1rem;margin:1rem 0;}
@media (min-width:768px){.x2b64-prepair{flex-direction:row;align-items:stretch;}}
.x2b64-prebox{flex:1;min-width:0;}
.x2b64-prebox h3{font-size:0.875rem;font-weight:700;margin:0 0 0.5rem;color:var(--text-main,#334155);}
.x2b64-pre{font-size:0.75rem;line-height:1.55;padding:1rem;border-radius:12px;background:#0f172a;color:#e2e8f0;overflow-x:auto;margin:0;white-space:pre-wrap;word-break:break-all;}