.tx{--tx-accent:var(--nb-color-primary,var(--theme-primary,#2563eb));--tx-accent-hover:var(--nb-color-primary-hover,var(--theme-primary-hover,var(--tx-accent)));--tx-accent-ink:var(--nb-color-on-primary,#fff);--tx-fg:var(--nb-color-text,#111827);--tx-muted:var(--nb-color-text-muted,#5b6472);--tx-surface:var(--nb-color-surface,#fff);--tx-line:var(--nb-color-border,#e5e7eb);--tx-line-strong:var(--nb-color-border-strong,#d1d5db);--tx-success:var(--nb-color-success,#0f9f6e);--tx-warning:var(--nb-color-warning,#b45309);--tx-soft:color-mix(in srgb, var(--tx-accent) 6%, var(--tx-surface));--tx-soft-2:color-mix(in srgb, var(--tx-accent) 12%, var(--tx-surface));--tx-ink:color-mix(in srgb, var(--tx-fg) 94%, #000);--tx-radius:var(--nb-radius-lg,18px);--tx-radius-sm:var(--nb-radius-md,12px);--tx-radius-pill:999px;--tx-font:var(--nb-font-body,var(--theme-font,inherit));--tx-font-heading:var(--nb-font-heading,var(--tx-font));--tx-shadow:var(--nb-shadow-sm,0 1px 2px #0f172a0f);--tx-shadow-lift:var(--nb-shadow-md,0 10px 30px -12px #0f172a2e);--tx-touch:var(--nb-touch-min,44px);--tx-ease:cubic-bezier(.2, .7, .2, 1);--tx-dur:var(--nb-duration-normal,.22s);--tx-maxw:1200px;--tx-pad-x:clamp(16px, 4vw, 32px);--tx-gap-y:clamp(28px, 5vw, 64px);font-family:var(--tx-font);color:var(--tx-fg);padding-block:var(--tx-gap-y);line-height:1.85;position:relative;container-type:inline-size}.tx *,.tx :before,.tx :after{box-sizing:border-box}.tx.tx-space--tight{--tx-gap-y:clamp(16px, 3vw, 32px)}.tx.tx-space--airy{--tx-gap-y:clamp(40px, 8vw, 104px)}.tx--soft{background:var(--tx-soft)}.tx--contrast{--tx-fg:#f8fafc;--tx-muted:#f8fafcb8;--tx-line:#ffffff29;--tx-line-strong:#ffffff47;--tx-surface:color-mix(in srgb, #fff 6%, var(--tx-ink));--tx-soft:color-mix(in srgb, #fff 8%, var(--tx-ink));--tx-soft-2:color-mix(in srgb, #fff 14%, var(--tx-ink));background:var(--tx-ink);color:var(--tx-fg)}.tx__inner{width:100%;max-width:var(--tx-maxw);padding-inline:var(--tx-pad-x);margin-inline:auto}.tx-w--reading .tx__inner{max-width:760px}.tx-w--content .tx__inner{max-width:1040px}.tx-w--wide .tx__inner{max-width:1320px}.tx--center{text-align:center}.tx-eyebrow{letter-spacing:0;color:var(--tx-accent);align-items:center;gap:8px;margin:0 0 12px;font-size:.8rem;font-weight:700;display:inline-flex}.tx--contrast .tx-eyebrow{color:color-mix(in srgb, var(--tx-accent) 55%, #fff)}.tx-title{font-family:var(--tx-font-heading);text-wrap:balance;margin:0;font-size:clamp(1.35rem,1rem + 1.6cqi,2rem);font-weight:800;line-height:1.45}.tx-title--page{font-size:clamp(1.75rem,1.1rem + 3.4cqi,3.1rem);line-height:1.3}.tx-title--xl{font-size:clamp(2.1rem,1.2rem + 5.4cqi,4.6rem);line-height:1.2}.tx-intro{color:var(--tx-muted);text-wrap:pretty;max-width:62ch;margin:12px 0 0;font-size:clamp(.98rem,.9rem + .35cqi,1.12rem)}.tx--center .tx-intro{margin-inline:auto}.tx-head{margin-bottom:clamp(18px,3cqi,32px)}.tx-head--row{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;display:flex}.tx-btn{min-height:var(--tx-touch);border-radius:var(--nb-radius-button,var(--tx-radius-sm));background:var(--tx-accent);color:var(--tx-accent-ink);font:inherit;cursor:pointer;transition:background var(--tx-dur) var(--tx-ease), transform var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-size:.95rem;font-weight:700;text-decoration:none;display:inline-flex}.tx-btn:hover{background:var(--tx-accent-hover)}.tx-btn:active{transform:translateY(1px)}.tx-btn--ghost{color:var(--tx-fg);border-color:var(--tx-line-strong);background:0 0}.tx-btn--ghost:hover{background:var(--tx-soft)}.tx-btn--quiet{background:var(--tx-soft);color:var(--tx-fg)}.tx-btn--quiet:hover{background:var(--tx-soft-2)}.tx-btn[aria-disabled=true],.tx-btn:disabled{opacity:.55;cursor:not-allowed}.tx-link{color:var(--tx-accent);font-weight:700;text-decoration:none}.tx-link:hover{text-underline-offset:4px;text-decoration:underline}.tx :is(a,button,input,textarea,select,summary):focus-visible{outline:3px solid color-mix(in srgb, var(--tx-accent) 55%, transparent);outline-offset:2px}.tx-pill{border-radius:var(--tx-radius-pill);background:var(--tx-soft);color:var(--tx-fg);white-space:nowrap;align-items:center;gap:6px;padding:4px 12px;font-size:.82rem;font-weight:600;display:inline-flex}.tx-pill i{background:var(--tx-muted);border-radius:50%;width:8px;height:8px}.tx-pill.is-open i{background:var(--tx-success);box-shadow:0 0 0 4px color-mix(in srgb, var(--tx-success) 22%, transparent)}.tx-pill.is-closed i{background:var(--tx-warning)}.tx-meta{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.tx--center .tx-meta{justify-content:center}.tx-card{background:var(--tx-surface);border:1px solid var(--tx-line);border-radius:var(--tx-radius);padding:clamp(16px,2.4cqi,24px)}.tx-card--link{color:inherit;transition:border-color var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease), transform var(--tx-dur) var(--tx-ease);text-decoration:none;display:block}.tx-card--link:hover{border-color:color-mix(in srgb, var(--tx-accent) 45%, var(--tx-line));box-shadow:var(--tx-shadow-lift);transform:translateY(-2px)}.tx-grid{grid-template-columns:1fr;gap:clamp(12px,2cqi,20px);display:grid}@container (min-width:560px){.tx-grid--2,.tx-grid--3,.tx-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}}@container (min-width:880px){.tx-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}.tx-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}}.tx-icon{border-radius:var(--tx-radius-sm);background:var(--tx-soft-2);width:44px;height:44px;color:var(--tx-accent);flex:none;place-items:center;display:inline-grid}.tx-icon--outline{border:1px solid var(--tx-line-strong);background:0 0}.tx-card h3,.tx-card__title{font-family:var(--tx-font-heading);margin:0;font-size:1.02rem;font-weight:800;line-height:1.6}.tx-card p{color:var(--tx-muted);margin:6px 0 0;font-size:.93rem}.tx-empty{text-align:center;border:1px dashed var(--tx-line-strong);border-radius:var(--tx-radius);color:var(--tx-muted);justify-items:center;gap:10px;padding:clamp(24px,5cqi,48px) 16px;display:grid}.tx-empty strong{color:var(--tx-fg);font-size:1.02rem}.tx-skel{gap:12px;display:grid}.tx-skel span{background:linear-gradient(90deg, var(--tx-soft) 0%, var(--tx-soft-2) 50%, var(--tx-soft) 100%);background-size:200% 100%;border-radius:8px;height:18px;animation:1.4s linear infinite tx-shimmer}.tx-skel span:nth-child(2){width:80%}.tx-skel span:nth-child(3){width:60%}@keyframes tx-shimmer{to{background-position:-200% 0}}.tx-faq-hero{gap:4px;display:grid}.tx-faq-hero--search-led .tx__inner{max-width:880px}.tx-faq-hero--compact{padding-bottom:clamp(12px,2cqi,20px)}.tx-faq-hero--minimal .tx-title{font-weight:700}.tx-faq-hero--assisted .tx-faq-hero__assist{flex-wrap:wrap;gap:10px;margin-top:20px;display:flex}.tx-search{position:relative}.tx-search__box{background:var(--tx-surface);border:1.5px solid var(--tx-line-strong);border-radius:var(--tx-radius);box-shadow:var(--tx-shadow);transition:border-color var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease);align-items:center;gap:10px;padding-inline:16px 8px;display:flex}.tx-search__box:focus-within{border-color:var(--tx-accent);box-shadow:0 0 0 4px color-mix(in srgb, var(--tx-accent) 16%, transparent)}.tx-search__box svg{color:var(--tx-muted);flex:none}.tx-search__input{min-width:0;font:inherit;color:var(--tx-fg);background:0 0;border:0;outline:none;flex:1;height:52px;font-size:1rem}.tx-search--lg .tx-search__input{height:62px;font-size:1.08rem}.tx-search__input::placeholder{color:var(--tx-muted)}.tx-search__clear{color:var(--tx-muted);width:var(--tx-touch);height:var(--tx-touch);cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;display:grid}.tx-search__clear:hover{background:var(--tx-soft)}.tx-search__status{color:var(--tx-muted);min-height:1.5em;margin:10px 4px 0;font-size:.86rem}@media (max-width:759px){.tx.tx-search-sticky-host{top:var(--nb-header-h,0px);z-index:5;background:var(--nb-color-background,var(--tx-surface));padding-block:10px;position:sticky;box-shadow:0 8px 16px -14px #0f172a66}.tx.tx-search-sticky-host .tx-search__status:empty{display:none}}.tx-search__results{margin-top:16px}.tx-chips{flex-wrap:wrap;gap:8px;display:flex}.tx-chips--rail{scrollbar-width:none;margin-inline:calc(var(--tx-pad-x) * -1);padding-bottom:4px;padding-inline:var(--tx-pad-x);scroll-snap-type:x proximity;flex-wrap:nowrap;overflow-x:auto}.tx-chips--rail::-webkit-scrollbar{display:none}.tx-chip{min-height:var(--tx-touch);border-radius:var(--tx-radius-pill);border:1px solid var(--tx-line);background:var(--tx-surface);color:var(--tx-fg);font:inherit;cursor:pointer;white-space:nowrap;scroll-snap-align:start;transition:background var(--tx-dur) var(--tx-ease), border-color var(--tx-dur) var(--tx-ease), color var(--tx-dur) var(--tx-ease);align-items:center;gap:8px;padding:0 16px;font-size:.92rem;font-weight:600;display:inline-flex}.tx-chip:hover{border-color:var(--tx-line-strong);background:var(--tx-soft)}.tx-chip[aria-pressed=true]{background:var(--tx-fg);color:var(--tx-surface);border-color:var(--tx-fg)}.tx--contrast .tx-chip[aria-pressed=true]{color:var(--tx-ink);background:#fff}.tx-chip small{opacity:.7;font-size:.78rem;font-weight:700}.tx-scope-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}@container (min-width:720px){.tx-scope-cards{grid-template-columns:repeat(4,minmax(0,1fr))}}.tx-scope-card{text-align:start;border-radius:var(--tx-radius);border:1px solid var(--tx-line);background:var(--tx-surface);color:inherit;font:inherit;cursor:pointer;min-height:96px;transition:border-color var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease);gap:6px;padding:16px;display:grid}.tx-scope-card:hover{box-shadow:var(--tx-shadow-lift);border-color:var(--tx-line-strong)}.tx-scope-card[aria-pressed=true]{border-color:var(--tx-accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--tx-accent) 18%, transparent)}.tx-scope-card strong{font-size:.98rem}.tx-scope-card span{color:var(--tx-muted);font-size:.84rem;line-height:1.6}.tx-faq-group+.tx-faq-group{margin-top:clamp(24px,4cqi,40px)}.tx-faq-group__title{font-family:var(--tx-font-heading);align-items:center;gap:10px;margin:0 0 12px;font-size:1.05rem;font-weight:800;display:flex}.tx-faq-group__title small{color:var(--tx-muted);font-size:.82rem;font-weight:600}.tx-acc{gap:10px;display:grid}.tx-acc--cols-2{grid-template-columns:1fr}@container (min-width:900px){.tx-acc--cols-2{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}}.tx-acc--line{gap:0}.tx-acc--none{gap:2px}.tx-acc__item{border-radius:var(--tx-radius);background:var(--tx-surface);border:1px solid var(--tx-line);transition:border-color var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease);scroll-margin-top:calc(var(--nb-header-h,0px) + 96px)}.tx-acc__item.is-open{border-color:color-mix(in srgb, var(--tx-accent) 35%, var(--tx-line));box-shadow:var(--tx-shadow)}.tx-acc--line .tx-acc__item{border:0;border-bottom:1px solid var(--tx-line);box-shadow:none;background:0 0;border-radius:0}.tx-acc--line .tx-acc__item:first-child{border-top:1px solid var(--tx-line)}.tx-acc--none .tx-acc__item{box-shadow:none;background:0 0;border:0}.tx-acc__q{font-size:inherit;margin:0}.tx-acc__btn{width:100%;min-height:60px;color:inherit;font:inherit;text-align:start;cursor:pointer;border-radius:inherit;background:0 0;border:0;align-items:center;gap:14px;padding:14px clamp(14px,2.4cqi,22px);font-size:clamp(.98rem,.94rem + .25cqi,1.06rem);font-weight:700;line-height:1.7;display:flex}.tx-acc--compact .tx-acc__btn{min-height:50px;padding-block:10px;font-size:.95rem}.tx-acc--airy .tx-acc__btn{min-height:76px;padding-block:20px;font-size:clamp(1.05rem,.98rem + .5cqi,1.28rem)}.tx-acc--line .tx-acc__btn{padding-inline:0}.tx-acc__btn>span:not(.tx-acc__mark){flex:1}.tx-acc__mark{background:var(--tx-soft);width:30px;height:30px;color:var(--tx-fg);transition:transform var(--tx-dur) var(--tx-ease), background var(--tx-dur) var(--tx-ease);border-radius:50%;flex:none;place-items:center;display:grid}.tx-acc__item.is-open .tx-acc__mark{background:var(--tx-accent);color:var(--tx-accent-ink)}.tx-acc--chevron .tx-acc__item.is-open .tx-acc__mark{transform:rotate(180deg)}.tx-acc--plus .tx-acc__item.is-open .tx-acc__mark{transform:rotate(45deg)}.tx-acc__panel{transition:grid-template-rows var(--tx-dur) var(--tx-ease);grid-template-rows:1fr;display:grid}.tx-acc__panel[hidden]{display:none}.tx-acc__body{overflow:hidden}.tx-acc__answer{color:color-mix(in srgb, var(--tx-fg) 82%, var(--tx-muted));white-space:pre-line;padding:0 clamp(14px,2.4cqi,22px) 18px;font-size:.98rem;line-height:2}.tx-acc--reading .tx-acc__answer{max-width:68ch}.tx-acc--line .tx-acc__answer{padding-inline:0}.tx-acc__links{flex-wrap:wrap;gap:8px;padding:0 clamp(14px,2.4cqi,22px) 18px;display:flex}.tx-acc--line 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strong{font-size:clamp(1.2rem,1rem + 1cqi,1.6rem);line-height:1.5}.tx-featured--list .tx-featured__item{border-bottom:1px solid var(--tx-line);padding:12px 0}.tx-prodq{grid-template-columns:1fr;gap:14px;display:grid}@container (min-width:680px){.tx-prodq--cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@container (min-width:1020px){.tx-prodq--cards{grid-template-columns:repeat(3,minmax(0,1fr))}}.tx-prodq__head{color:inherit;align-items:center;gap:12px;margin-bottom:10px;text-decoration:none;display:flex}.tx-prodq__head img{object-fit:contain;border-radius:var(--tx-radius-sm);border:1px solid var(--tx-line);background:#fff;flex:none;width:52px;height:52px}.tx-prodq__head strong{font-size:.96rem;line-height:1.6}.tx-prodq ul{gap:6px;margin:0;padding:0;list-style:none;display:grid}.tx-prodq li a,.tx-prodq li button{text-align:start;width:100%;font:inherit;color:var(--tx-fg);cursor:pointer;background:0 0;border:0;padding:6px 0;font-size:.9rem;line-height:1.7;text-decoration:none;display:block}.tx-prodq li a:hover,.tx-prodq li button:hover{color:var(--tx-accent)}.tx-prodq--compact .tx-card{padding:14px}.tx-popular{counter-reset:pop;gap:10px;display:grid}.tx-popular--cards{grid-template-columns:1fr}@container (min-width:720px){.tx-popular--cards{grid-template-columns:repeat(2,minmax(0,1fr))}}.tx-popular__item{color:inherit;border-bottom:1px solid var(--tx-line);align-items:baseline;gap:14px;padding:12px 0;text-decoration:none;display:flex}.tx-popular__item:before{counter-increment:pop;content:counter(pop, persian);font-family:var(--tx-font-heading);color:var(--tx-accent);min-width:1.4em;font-size:1.2rem;font-weight:800}.tx-popular--cards .tx-popular__item{border:1px solid var(--tx-line);border-radius:var(--tx-radius);background:var(--tx-surface);padding:14px 16px}.tx-popular__item small{color:var(--tx-muted);font-size:.8rem;display:block}.tx-help{align-items:center;gap:16px;display:grid}@container (min-width:720px){.tx-help--card{grid-template-columns:1fr auto}}.tx-help--card{background:var(--tx-soft);border-radius:calc(var(--tx-radius) + 4px);padding:clamp(20px,3.4cqi,36px)}.tx-help--quiet{border-top:1px solid var(--tx-line);padding-top:24px}.tx-help__actions{flex-wrap:wrap;gap:10px;display:flex}.tx-esc{gap:12px;display:grid}@container (min-width:760px){.tx-esc--prominent{grid-template-columns:repeat(3,minmax(0,1fr))}}.tx-esc--inline{flex-wrap:wrap;gap:10px;display:flex}.tx-esc__item{color:inherit;border-radius:var(--tx-radius);border:1px solid var(--tx-line);background:var(--tx-surface);font:inherit;cursor:pointer;text-align:start;min-height:var(--tx-touch);align-items:center;gap:12px;padding:12px 16px;text-decoration:none;display:flex}.tx-esc__item:hover{border-color:var(--tx-line-strong);background:var(--tx-soft)}.tx-esc__item strong{font-size:.95rem;display:block}.tx-esc__item small{color:var(--tx-muted);font-size:.82rem;display:block}.tx-c-hero__status{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.tx--center .tx-c-hero__status{justify-content:center}.tx-c-hero--statement .tx-title{font-size:clamp(2rem,1.2rem + 4.6cqi,4rem);font-weight:800;line-height:1.25}.tx-router__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}@container (min-width:760px){.tx-router__grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@container (min-width:1040px){.tx-router__grid{grid-template-columns:repeat(5,minmax(0,1fr))}}.tx-router--list .tx-router__grid{grid-template-columns:1fr;gap:0}@container (min-width:760px){.tx-router--list .tx-router__grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}}.tx-router--compact .tx-router__grid{flex-wrap:wrap;gap:8px;display:flex}.tx-intent{border-radius:var(--tx-radius);border:1px solid var(--tx-line);background:var(--tx-surface);min-height:104px;color:inherit;font:inherit;text-align:start;cursor:pointer;transition:border-color var(--tx-dur) var(--tx-ease), box-shadow var(--tx-dur) var(--tx-ease), background var(--tx-dur) var(--tx-ease);align-content:start;gap:8px;padding:14px;display:grid}.tx-intent:hover{border-color:var(--tx-line-strong);box-shadow:var(--tx-shadow-lift)}.tx-intent[aria-pressed=true]{border-color:var(--tx-accent);background:var(--tx-soft);box-shadow:0 0 0 3px color-mix(in srgb, var(--tx-accent) 18%, transparent)}.tx-intent strong{font-size:.96rem;line-height:1.5}.tx-intent small{color:var(--tx-muted);font-size:.8rem;line-height:1.6}.tx-intent .tx-icon{width:38px;height:38px}.tx-router--list .tx-intent{border:0;border-bottom:1px solid var(--tx-line);min-height:64px;box-shadow:none;background:0 0;border-radius:0;grid-template-columns:auto 1fr;align-items:center;padding-inline:4px}.tx-router--list 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