:root{--iso-red: #D6001C;--iso-red-dark: #B8001A;--iso-red-light: #E8354D;--iso-green: #22A66E;--iso-green-light: #E8F5EF;--iso-amber: #F5A623;--iso-yellow: #FFC828;--iso-anthrazit: #1A1A1A;--iso-gray-50: #FAFAFA;--iso-gray-100: #F5F5F5;--iso-gray-200: #E5E5E5;--iso-gray-800: #2D2D2D;--iso-gray-900: #1A1A1A;--iso-text: #2D2D2D;--iso-text-dim: #666;--iso-border: #E5E5E5;--iso-border-strong: #1A1A1A;--iso-radius-sm: 6px;--iso-radius-md: 10px;--iso-radius-lg: 14px;--iso-radius-xl: 20px;--iso-shadow-card: 0 1px 3px rgba(0,0,0,.05), 0 1px 2px rgba(0,0,0,.04);--iso-shadow-hover: 0 8px 24px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.06);--iso-shadow-red: 0 8px 24px rgba(208,16,48,.3);--iso-font: "Rubik", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;--read-space-8: 8px;--read-space-12: 12px;--read-space-16: 16px;--read-space-24: 24px;--read-space-32: 32px;--read-space-48: 48px;--read-space-64: 64px;--read-space-80: 80px;--read-touch-min: 44px}.if-article,.if-article *,.if-article *:before,.if-article *:after{box-sizing:border-box}.if-article{font-family:var(--iso-font);font-size:17px;line-height:1.7;color:var(--iso-text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;word-wrap:break-word;overflow-wrap:break-word}.if-article img{max-width:100%;height:auto;display:block}.if-article a{color:var(--iso-red);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}.if-article a:hover{color:var(--iso-red-dark)}.if-article :focus-visible{outline:3px solid var(--iso-red);outline-offset:3px;border-radius:4px}html{scroll-behavior:smooth;scroll-padding-top:80px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.if-breadcrumb{max-width:1200px;margin:0 auto;padding:20px 24px 0;font-size:13px;color:var(--iso-text-dim);display:flex;flex-wrap:wrap;gap:6px;align-items:center}.if-breadcrumb a{color:var(--iso-text-dim);text-decoration:none}.if-breadcrumb a:hover{color:var(--iso-red)}.if-breadcrumb-sep{opacity:.5}.if-breadcrumb [aria-current=page]{color:var(--iso-anthrazit);font-weight:600}@media(max-width:749px){.if-breadcrumb{padding:12px 16px 0;font-size:12px}}.if-hero{position:relative;margin:16px auto 0;max-width:1200px;border-radius:var(--iso-radius-xl);overflow:hidden;isolation:isolate;background:var(--iso-anthrazit);color:#fff;min-height:360px}.if-hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;background-size:cover;background-position:center;filter:brightness(.55) saturate(1.05);transform:scale(1.02)}.if-hero-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#1a1a1a4d,#1a1a1aa6)}.if-hero-content{position:relative;z-index:1;padding:80px 48px 56px;max-width:880px}.if-hero-eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;background:#ffffff24;border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 14px;margin-bottom:20px;color:#fff;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}.if-hero-title{font-size:clamp(28px,4.8vw,48px);font-weight:800;line-height:1.12;letter-spacing:-.02em;margin:0 0 16px;color:#fff}.if-hero-sub{font-size:clamp(15px,1.5vw,18px);line-height:1.55;color:#ffffffe0;margin:0 0 28px;max-width:680px}.if-hero-trust{display:flex;flex-wrap:wrap;gap:20px 28px;align-items:center;font-size:14px;color:#ffffffeb;font-weight:500}.if-hero-trust-item{display:inline-flex;align-items:center;gap:8px}.if-hero-trust-stars{color:#ffab00;letter-spacing:1px;font-size:15px}.if-hero-trust-strong{color:#fff;font-weight:700}@media(max-width:749px){.if-hero{margin:12px 16px 0;border-radius:var(--iso-radius-lg);min-height:280px}.if-hero-content{padding:40px 24px 36px}.if-hero-trust{gap:10px 18px;font-size:13px}}.if-facts{max-width:1200px;margin:32px auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.if-facts-item{background:#fff;border:1px solid var(--iso-border);border-radius:var(--iso-radius-md);padding:18px 18px 16px;text-align:left;box-shadow:var(--iso-shadow-card);transition:transform .18s,box-shadow .18s}.if-facts-item:hover{transform:translateY(-2px);box-shadow:var(--iso-shadow-hover)}.if-facts-icon{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;background:var(--iso-red);color:#fff;border-radius:10px;margin-bottom:10px;font-size:18px}.if-facts-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--iso-text-dim);margin:0 0 4px}.if-facts-value{font-size:16px;font-weight:700;color:var(--iso-anthrazit);margin:0;line-height:1.25}@media(max-width:749px){.if-facts{grid-template-columns:repeat(2,1fr);gap:10px;padding:0 16px;margin:20px auto}.if-facts-item{padding:14px 14px 12px}.if-facts-icon{width:30px;height:30px;font-size:16px;margin-bottom:8px}.if-facts-value{font-size:15px}}.if-layout{max-width:1200px;margin:0 auto 80px;padding:0 24px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px}.if-main{min-width:0}.if-sidebar{position:relative}@media(max-width:1023px){.if-layout{grid-template-columns:1fr;gap:0}.if-sidebar{display:none}}@media(max-width:749px){.if-layout{padding:0 16px;margin-bottom:60px}}.if-sidebar-inner{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px}.if-toc{background:#fff;border:1px solid var(--iso-border);border-radius:var(--iso-radius-md);padding:18px 8px 14px 20px;max-height:calc(100vh - 200px);overflow-y:auto}.if-toc-title{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:var(--iso-text-dim);margin:0 0 12px}.if-toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}.if-toc-link{display:block;font-size:14px;line-height:1.4;color:var(--iso-text-dim);text-decoration:none;padding:10px 10px 10px 14px;min-height:var(--read-touch-min);border-radius:6px;border-left:2px solid transparent;transition:color .15s,background .15s,border-color .15s}.if-toc-link:hover{color:var(--iso-anthrazit);background:var(--iso-gray-50)}.if-toc-link.is-active{color:var(--iso-red);font-weight:600;border-left-color:var(--iso-red);background:#d010300a}.if-sidebar-cta{background:linear-gradient(180deg,var(--iso-red) 0%,var(--iso-red-dark) 100%);color:#fff;border-radius:var(--iso-radius-md);padding:20px;box-shadow:var(--iso-shadow-red)}.if-sidebar-cta-title{font-size:16px;font-weight:800;line-height:1.25;margin:0 0 6px;color:#fff}.if-sidebar-cta-sub{font-size:13px;opacity:.92;margin:0 0 14px;color:#fff}.if-sidebar-cta-btn{display:block;width:100%;text-align:center;background:#fff;color:var(--iso-red);padding:11px 16px;border-radius:999px;font-weight:700;font-size:14px;text-decoration:none;transition:transform .15s}.if-sidebar-cta-btn:hover{color:var(--iso-red);transform:translateY(-1px)}.if-sidebar-cta-foot{font-size:11px;opacity:.8;text-align:center;margin:10px 0 0;color:#fff}.if-toc-mobile{display:none;margin:0 -16px 28px;background:var(--iso-gray-50);border-top:1px solid var(--iso-border);border-bottom:1px solid var(--iso-border)}@media(max-width:1023px){.if-toc-mobile{display:block}}.if-toc-mobile-toggle{width:100%;text-align:left;background:none;border:0;padding:14px 20px;font:700 14px/1.2 var(--iso-font);color:var(--iso-anthrazit);display:flex;justify-content:space-between;align-items:center;cursor:pointer}.if-toc-mobile-toggle:after{content:"\25be";font-size:12px;transition:transform 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10px;scroll-margin-top:80px}.if-h4{font-size:17px;font-weight:700;margin:24px 0 8px;color:var(--iso-anthrazit)}.if-p{margin:0 0 16px}.if-p strong{color:var(--iso-anthrazit);font-weight:700}.if-p:last-child{margin-bottom:0}@media(max-width:749px){.if-article{font-size:16px}.if-h2{margin:44px 0 12px}}.if-ul,.if-ol{margin:0 0 20px;padding-left:24px}.if-ul li,.if-ol li{margin:8px 0}.if-ul li::marker{color:var(--iso-red)}.if-ol li::marker{color:var(--iso-red);font-weight:700}.if-checklist{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:8px}.if-checklist li{position:relative;padding-left:32px}.if-checklist li:before{content:"\2713";position:absolute;left:0;top:0;width:22px;height:22px;background:var(--iso-green);color:#fff;border-radius:50%;font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:2px}.if-steps{list-style:none;counter-reset:ifstep;padding:0;margin:24px 0 28px;display:flex;flex-direction:column;gap:16px}.if-step{counter-increment:ifstep;position:relative;padding:18px 20px 18px 78px;background:#fff;border:1px solid var(--iso-border);border-radius:var(--iso-radius-md);box-shadow:var(--iso-shadow-card)}.if-step:before{content:counter(ifstep);position:absolute;left:18px;top:18px;width:44px;height:44px;background:linear-gradient(180deg,var(--iso-red) 0%,var(--iso-red-dark) 100%);color:#fff;border-radius:12px;font:800 20px/44px var(--iso-font);text-align:center;box-shadow:var(--iso-shadow-red)}.if-step-title{font-size:17px;font-weight:700;color:var(--iso-anthrazit);margin:0 0 4px;line-height:1.3}.if-step-text{font-size:15px;color:var(--iso-text);line-height:1.55;margin:0}.if-step-text strong{color:var(--iso-anthrazit)}@media(max-width:749px){.if-step{padding:16px 16px 16px 70px}.if-step:before{width:38px;height:38px;line-height:38px;font-size:17px;left:14px;top:16px}}.if-cta{background:var(--iso-gray-50);border:1px solid var(--iso-border);border-left:4px solid var(--iso-red);border-radius:var(--iso-radius-md);padding:22px 24px;margin:32px 0;display:grid;grid-template-columns:80px 1fr;gap:20px;align-items:center}.if-cta-img{width:80px;height:80px;border-radius:var(--iso-radius-md);object-fit:cover;background:var(--iso-gray-200)}.if-cta-body{min-width:0}.if-cta-title{font-size:16px;font-weight:700;color:var(--iso-anthrazit);margin:0 0 6px;line-height:1.3}.if-cta-text{font-size:14.5px;line-height:1.5;color:var(--iso-text-dim);margin:0 0 14px}.if-cta-btn{display:inline-block;background:linear-gradient(180deg,var(--iso-red) 0%,var(--iso-red-dark) 100%);color:#fff!important;padding:11px 22px;border-radius:999px;font-weight:700;font-size:14.5px;text-decoration:none!important;box-shadow:var(--iso-shadow-red);transition:transform .15s,box-shadow .2s}.if-cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px #d0103066}.if-cta-btn-arrow{margin-left:4px;transition:transform .2s;display:inline-block}.if-cta-btn:hover .if-cta-btn-arrow{transform:translate(4px)}.if-cta-foot{font-size:12px;color:var(--iso-text-dim);margin:8px 0 0}@media(max-width:749px){.if-cta{grid-template-columns:1fr;gap:12px;padding:18px}.if-cta-img{width:100%;height:140px}}.if-compare-wrap{margin:28px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--iso-radius-md);border:1px solid var(--iso-border)}.if-compare{width:100%;min-width:600px;border-collapse:collapse;font-size:14.5px;background:#fff}.if-compare th,.if-compare td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--iso-border)}.if-compare th{background:var(--iso-gray-50);font-weight:700;font-size:13px;color:var(--iso-text-dim);text-transform:uppercase;letter-spacing:.04em}.if-compare th:first-child{background:var(--iso-gray-100)}.if-compare th.is-iso{background:var(--iso-red);color:#fff}.if-compare tr:last-child td{border-bottom:0}.if-compare td.is-iso{background:#d010300d;font-weight:700;color:var(--iso-anthrazit)}.if-compare-yes{color:var(--iso-green);font-weight:700}.if-compare-no{color:var(--iso-red);font-weight:700}.if-compare-mid{color:var(--iso-amber);font-weight:700}@media(max-width:749px){.if-compare{font-size:13.5px}.if-compare th,.if-compare td{padding:12px}}.if-quote{position:relative;margin:36px 0;padding:28px 32px 28px 36px;background:var(--iso-gray-50);border-left:4px solid var(--iso-red);border-radius:var(--iso-radius-md)}.if-quote:before{content:"\201e";position:absolute;left:20px;top:-6px;font-size:88px;line-height:1;color:var(--iso-red);font-family:Georgia,Times New Roman,serif;font-weight:700;opacity:.25}.if-quote-text{font-size:clamp(17px,1.7vw,19px);line-height:1.55;color:var(--iso-anthrazit);font-style:italic;margin:0 0 16px;font-weight:500}.if-quote-meta{display:flex;align-items:center;gap:12px;font-size:14px}.if-quote-avatar{width:40px;height:40px;border-radius:50%;background:var(--iso-red);color:#fff;font-weight:700;font-size:16px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}.if-quote-avatar img{width:100%;height:100%;object-fit:cover}.if-quote-name{font-weight:700;color:var(--iso-anthrazit)}.if-quote-ctx{color:var(--iso-text-dim);font-size:13px;margin-top:1px}.if-quote-stars{color:#ffab00;letter-spacing:1px;margin-left:auto;font-size:14px}@media(max-width:749px){.if-quote{padding:24px 22px 22px 24px;margin:28px 0}.if-quote:before{font-size:64px;left:16px;top:-2px}}.if-figure{margin:24px 0;text-align:center}.if-figure img{border-radius:var(--iso-radius-md);margin:0 auto;box-shadow:var(--iso-shadow-card);cursor:zoom-in}.if-figcaption{font-size:14px;color:var(--iso-text-dim);margin-top:10px;font-style:italic}.if-box{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;margin:24px 0;padding:18px 20px;border-radius:var(--iso-radius-md);font-size:15px;line-height:1.55}.if-box-icon{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#fff}.if-box-body{min-width:0}.if-box-title{display:block;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;margin:4px 0}.if-box-text{margin:0}.if-box-text strong{color:var(--iso-anthrazit)}.if-box--warn{background:#fff5f5;border:1px solid #FBC8C8}.if-box--warn .if-box-icon{background:var(--iso-red)}.if-box--warn .if-box-title{color:var(--iso-red-dark)}.if-box--tip{background:var(--iso-green-light);border:1px solid #B8E5CE}.if-box--tip .if-box-icon{background:var(--iso-green)}.if-box--tip .if-box-title{color:#15693f}.if-box--info{background:#f2f6fb;border:1px solid #D6E1ED}.if-box--info .if-box-icon{background:#3b5c8a}.if-box--info .if-box-title{color:#2a4566}.if-faq{margin:32px 0;border-top:1px solid var(--iso-border)}.if-faq-item{border-bottom:1px solid var(--iso-border)}.if-faq-q{width:100%;background:none;border:0;text-align:left;padding:20px 0;min-height:var(--read-touch-min);display:flex;justify-content:space-between;gap:16px;align-items:center;font:700 16px/1.4 var(--iso-font);color:var(--iso-anthrazit);cursor:pointer}.if-faq-q:after{content:"+";font-size:24px;line-height:1;color:var(--iso-red);flex-shrink:0;transition:transform .2s}.if-faq-item[aria-expanded=true] .if-faq-q:after{transform:rotate(45deg)}.if-faq-a{display:none;padding:0 0 22px;font-size:15.5px;line-height:1.65;color:var(--iso-text)}.if-faq-item[aria-expanded=true] .if-faq-a{display:block}.if-faq-a p{margin:0 0 10px}.if-faq-a p:last-child{margin-bottom:0}.if-hub{max-width:1200px;margin:80px auto 0;padding:0 24px}.if-hub-title{font-size:clamp(22px,2.6vw,28px);font-weight:800;color:var(--iso-anthrazit);text-align:center;margin:0 0 28px}.if-hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.if-hub-card{background:#fff;border:1px solid var(--iso-border);border-radius:var(--iso-radius-md);overflow:hidden;text-decoration:none;color:var(--iso-anthrazit);box-shadow:var(--iso-shadow-card);transition:transform .18s,box-shadow .18s;display:flex;flex-direction:column}.if-hub-card:hover{transform:translateY(-3px);box-shadow:var(--iso-shadow-hover);color:var(--iso-anthrazit)}.if-hub-card-img{aspect-ratio:16 / 10;width:100%;background:var(--iso-gray-200);object-fit:cover;display:block}.if-hub-card-body{padding:16px 18px 18px}.if-hub-card-eyebrow{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--iso-red);margin:0 0 6px}.if-hub-card-title{font-size:16px;font-weight:700;line-height:1.3;margin:0 0 6px;color:var(--iso-anthrazit)}.if-hub-card-meta{font-size:12.5px;color:var(--iso-text-dim)}@media(max-width:1023px){.if-hub-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:599px){.if-hub-grid{grid-template-columns:1fr}.if-hub{padding:0 16px;margin-top:60px}}.if-final{margin:80px auto 0;padding:0 24px;max-width:1200px}.if-final-brick{background:linear-gradient(180deg,var(--iso-red) 0%,var(--iso-red-dark) 100%);color:#fff;border-radius:var(--iso-radius-xl);padding:56px 32px;text-align:center;box-shadow:0 20px 60px #d010304d,0 4px 16px #0000001a}.if-final-title{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.2;margin:0 0 10px;color:#fff}.if-final-sub{font-size:clamp(15px,1.5vw,18px);opacity:.92;margin:0 auto 28px;max-width:560px}.if-final-btn{display:inline-block;background:#fff;color:var(--iso-red)!important;padding:17px 38px;border-radius:999px;font-weight:800;font-size:17px;text-decoration:none!important;box-shadow:0 8px 24px #0000002e;transition:transform 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