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.3s,color .3s}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:1rem;line-height:1.3}h1{font-size:var(--font-size-hero);font-weight:var(--font-weight-extrabold);letter-spacing:-.02em;line-height:1.15}h2{font-size:var(--font-size-heading);letter-spacing:-.01em}h3{font-size:var(--font-size-subheading);font-weight:var(--font-weight-semibold)}p{color:var(--text-primary);margin-bottom:1rem}a{color:var(--link);text-decoration:none;transition:color .15s}a:hover{color:var(--link-hover)}a:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:2px}code{font-family:var(--font-family-mono);background:var(--surface-subtle);border-radius:var(--radius-sm);border:1px solid var(--border-color);padding:2px 6px;font-size:.9em}pre{background:var(--surface-subtle);border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:1rem;padding:1rem;overflow-x:auto}pre code{background:0 0;border:none;padding:0;font-size:.875rem}ul,ol{margin-bottom:1rem;padding-left:1.5rem}li{color:var(--text-primary);margin-bottom:.5rem}table{border-collapse:collapse;background:var(--card-background);border-radius:var(--radius-lg);border:1px solid var(--border-color);width:100%;margin-bottom:1.5rem;overflow:hidden}th,td{text-align:left;border-bottom:1px solid var(--border-color);padding:12px 16px}th{background:var(--bg-color);font-weight:var(--font-weight-semibold);color:var(--text-primary);font-size:var(--font-size-caption);text-transform:uppercase;letter-spacing:.05em}tr:last-child td{border-bottom:none}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-success{color:var(--color-success)}.text-error{color:var(--color-error)}.text-warning{color:var(--color-warning)}.text-center{text-align:center}.text-right{text-align:right}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.container{max-width:900px;margin:0 auto;padding:0 1rem}.container-narrow{max-width:720px;margin:0 auto;padding:0 1rem}html{scroll-behavior:smooth}::selection{background:var(--brand);color:#fff}::selection{background:var(--brand);color:#fff}:focus{outline:2px solid var(--brand);outline-offset:2px}:focus:not(:focus-visible){outline:none}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}h1[id],h2[id],h3[id],h4[id],section[id]{scroll-margin-top:70px}.card{background:var(--card-background);border-radius:var(--radius-lg);padding:var(--card-padding);border:1px solid var(--border-color);transition:box-shadow .15s}a .card:hover,a.card:hover{box-shadow:var(--shadow-md)}.card-flat{box-shadow:none;border:1px solid var(--border-color)}.card-flat:hover{box-shadow:none}.btn{justify-content:center;align-items:center;gap:var(--spacing-sm);min-height:44px;font-family:var(--font-family);font-size:15px;font-weight:var(--font-weight-semibold);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:10px;padding:10px 22px;line-height:1;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s,box-shadow .15s;display:inline-flex}.btn:active{transform:translateY(.5px)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn:disabled:hover{opacity:.4}.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.btn-primary{background:var(--brand);color:#fff;font-weight:var(--font-weight-semibold);box-shadow:0 1px 2px #05966940}.btn-primary:hover{background:var(--brand-hover);color:#fff;box-shadow:0 2px 8px #0596694d}.btn-secondary{background:var(--card-background);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--surface-subtle)}.btn-outline{color:var(--text-secondary);border:1px solid var(--border-color);background:0 0}.btn-outline:hover{background:var(--surface-subtle);border-color:var(--text-secondary)}.btn-ghost{color:var(--text-secondary);background:0 0;border:none}.btn-ghost:hover{background:var(--surface-subtle);color:var(--text-primary)}.btn-sm{min-height:36px;font-size:var(--font-size-caption);padding:6px 14px}.btn-lg{min-height:48px;padding:13px 28px;font-size:16px}.grid{gap:var(--section-gap);display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (width<=968px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media (width<=768px){.grid-2,.grid-3{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}}@media (width<=480px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.flex{display:flex}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.flex-col{flex-direction:column;display:flex}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.gap-xl{gap:var(--spacing-xl)}.badge{border-radius:var(--radius-full);font-size:var(--font-size-small);font-weight:var(--font-weight-medium);border:1px solid;align-items:center;padding:4px 12px;display:inline-flex}.badge-success{background:var(--tint-success);color:var(--color-success);border-color:var(--tint-success-border)}.badge-error{background:var(--tint-error);color:var(--color-error);border-color:var(--tint-error-border)}.badge-warning{background:var(--tint-warning);color:var(--color-warning);border-color:var(--tint-warning-border)}.badge-info{background:var(--tint-info);color:var(--color-info);border-color:var(--tint-info-border)}.badge-neutral{background:var(--surface-subtle);color:var(--text-secondary);border-color:var(--border-color)}.divider{background:var(--border-color);height:1px;margin:1.5rem 0}.section{padding:2rem 0}.section-title{font-size:var(--font-size-heading);font-weight:var(--font-weight-bold);color:var(--text-primary);margin-bottom:1rem}.section-title:has(+.section-subtitle){margin-bottom:.4rem}.section-subtitle{color:var(--text-secondary);margin-bottom:1.75rem;font-size:15px}.hero{text-align:center;background:var(--bg-color);padding:80px 20px}.hero-title{font-size:var(--font-size-hero);font-weight:var(--font-weight-extrabold);color:var(--text-primary);margin-bottom:16px}.hero-title.gradient{color:var(--brand)}.hero-subtitle{font-size:var(--font-size-subheading);color:var(--text-secondary);font-weight:var(--font-weight-regular);margin-bottom:32px}.icon{flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;display:inline-flex}.icon svg{width:100%;height:100%;display:block}.icon-sm{width:16px;height:16px}.icon-lg{width:32px;height:32px}.icon-xl{width:48px;height:48px}.spinner{border:3px solid var(--border-color);border-top-color:var(--brand);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}div.card.info-card,div.card.highlight-card{box-shadow:none;background:0 0;border:none;border-radius:0;margin-top:2.25rem;padding:0}div.card.info-card:first-child,div.card.highlight-card:first-child{margin-top:0}div.card.step-card{box-shadow:none;background:0 0;border:none}.alert{border-radius:0 var(--radius-md) var(--radius-md) 0;color:var(--text-primary);border:none;border-left:3px solid;margin:1rem 0;padding:12px 16px}.alert-success{border-left-color:var(--color-success);background:var(--tint-success)}.alert-error{border-left-color:var(--color-error);background:var(--tint-error)}.alert-warning{border-left-color:var(--color-warning);background:var(--tint-warning)}.alert-info{border-left-color:var(--ios-grey-4);background:var(--surface-subtle)}[data-theme=dark] .alert-info{border-left-color:var(--ios-dark-5)}.code-block{border-radius:var(--radius-md);border:1px solid var(--border-color);margin-bottom:1.5rem;position:relative;overflow:hidden}.code-block pre{margin:0;background:var(--ios-grey-1)!important}[data-theme=dark] .code-block pre{background:var(--ios-dark-2)!important}.code-block-header{background:var(--card-background);border-bottom:1px solid var(--border-color);font-size:var(--font-size-caption);color:var(--text-secondary);font-weight:var(--font-weight-medium);justify-content:space-between;align-items:center;padding:8px 16px;display:flex}.code-block pre{border-radius:0}.feature-card{text-align:center;padding:1.25rem}.feature-icon{background:var(--surface-subtle);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:40px;height:40px;color:var(--text-secondary);justify-content:center;align-items:center;margin:0 auto .75rem;display:flex}.feature-title{font-size:var(--font-size-subheading);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:.5rem}.feature-description{font-size:var(--font-size-caption);color:var(--text-secondary);line-height:1.6}.comparison-table{width:100%;margin:2rem 0}.comparison-row{background:var(--border-color);grid-template-columns:1fr 1fr 1fr;gap:1px;display:grid}.comparison-cell{background:var(--card-background);text-align:center;padding:16px}.comparison-header{font-weight:var(--font-weight-semibold);color:var(--text-primary)}@media (width<=640px){.comparison-row{grid-template-columns:1fr}}.steps{justify-content:space-between;margin:2rem 0;display:flex}.steps>.step{text-align:center;flex:1;position:relative}.steps>.step:not(:last-child):after{content:"";background:var(--border-color);z-index:-1;width:100%;height:1px;position:absolute;top:20px;left:50%}.step-number{background:var(--surface-subtle);border:1px solid var(--border-color);width:40px;height:40px;font-weight:var(--font-weight-semibold);color:var(--text-secondary);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 8px;display:flex}.step.active .step-number{background:var(--brand);border-color:var(--brand);color:#fff}.step-label{font-size:var(--font-size-caption);color:var(--text-secondary)}.step.active .step-label{color:var(--text-primary);font-weight:var(--font-weight-medium)}.inline-link{color:var(--link-inline);font-weight:var(--font-weight-semibold);text-decoration:none;transition:opacity .2s}.inline-link:hover{opacity:.8;text-decoration:underline}.app-root{flex-direction:column;min-height:100vh;display:flex}.app-layout{flex:1;display:flex;position:relative}.app-main{flex:1;min-width:0}.page-shell{align-items:flex-start;gap:2.5rem;max-width:1220px;margin:0 auto;padding:2rem 2rem 0;display:flex}.page-body{flex:1;min-width:0}.page-aside{flex-shrink:0;width:220px;max-height:calc(100vh - 84px);position:sticky;top:68px;overflow-y:auto}@media (width>=969px){.app-main{margin-left:272px;transition:margin-left .3s}.sidebar-collapsed .app-main{margin-left:0}}@media (width<=1279px){.page-shell{flex-direction:column;align-items:stretch;gap:0}.page-aside{order:-1;width:auto;max-height:none;position:static;overflow:visible}}@media (width<=640px){.page-shell{padding:1.5rem 1rem 0}}