.page-extension-guide{--eg-line:#334654;--eg-panel:#121d27;--eg-cyan:#5ad9f8;--eg-ink:#e9f6fc;--eg-muted:#a3b6c2}
.eg{width:min(1660px,100%);margin:0 auto;padding:clamp(28px,4vw,70px) clamp(22px,4vw,72px) 110px;overflow:hidden;font-family:Arial,"Segoe UI",sans-serif}
.eg section{scroll-margin-top:24px}
.eg-kicker{display:block;color:var(--eg-cyan);font:800 11px/1.4 var(--os-mono),monospace;letter-spacing:.17em;text-transform:uppercase}
.eg h1,.eg h2,.eg strong{color:var(--eg-ink)}
.eg h1,.eg h2{font-family:Arial,sans-serif;letter-spacing:-.045em}
.eg h1{font-size:clamp(48px,5.3vw,92px);line-height:.96;font-weight:700;max-width:800px;margin:24px 0}
.eg h1 em{font-style:normal;color:var(--eg-cyan)}
.eg h2{font-size:clamp(34px,3.25vw,58px);line-height:1.02;font-weight:700;margin:14px 0 15px}
.eg p{line-height:1.6;color:var(--eg-muted)}
.eg-hero{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.88fr);gap:clamp(36px,5vw,90px);align-items:center;min-height:490px;padding-bottom:72px;border-bottom:1px solid var(--eg-line)}
.eg-hero__copy{min-width:0}
.eg-lead{font-size:clamp(16px,1.35vw,20px);max-width:670px}
.eg-hero__actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.eg-button{display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:52px;padding:0 22px;font:700 14px/1.3 Arial,sans-serif;border:1px solid var(--eg-line);transition:transform .2s ease,background .2s ease,border-color .2s ease}
.eg-button:hover{transform:translateY(-2px)}
.eg-button--primary{background:var(--eg-cyan);border-color:var(--eg-cyan);color:#061620;box-shadow:5px 5px 0 #1d4574}
.eg-button--primary:hover{background:#a2efff;color:#061620}
.eg-button--ghost{background:#0c1b27;color:var(--eg-ink)}
.eg-button--ghost:hover{border-color:var(--eg-cyan);background:#123044}
.eg-hero__hint{font-size:12px;margin-top:22px}
.eg-route{position:relative;min-width:0;padding:25px;border:1px solid var(--eg-line);background:var(--eg-panel)}
.eg-route::before{display:none}
.eg-route>*{position:relative}
.eg-route__top{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--eg-line);padding-bottom:18px;font:800 10px var(--os-mono),monospace;letter-spacing:.07em;color:#91dff1}
.eg-route__top span:last-child{margin-left:auto;color:#86a9bb}
.eg-route__light,.eg-route__ok{display:block;width:8px;height:8px;border-radius:50%;background:var(--eg-cyan)}
.eg-route__steps{display:flex;align-items:center;justify-content:space-between;gap:9px;padding:50px 0 42px}
.eg-route__steps>div{display:grid;align-content:start;gap:10px;min-width:0;flex:1}
.eg-route__number{color:#72e3ff;font:800 24px var(--os-mono),monospace}
.eg-route__steps strong{font-size:15px;line-height:1.2}
.eg-route__steps small{color:#9aaebe;font-size:11px;line-height:1.4}
.eg-route__arrow{color:#4acbe9;font-size:20px;flex:none}
.eg-route__foot{display:flex;align-items:center;gap:11px;border-top:1px solid var(--eg-line);padding-top:19px;color:#9eb5c2;font-size:11px;line-height:1.5}
.eg-route__ok{width:6px;height:6px;flex:none}
.eg-section-head{max-width:860px}
.eg-section-head>p{font-size:16px}
.eg-choice,.eg-install,.eg-files,.eg-flow,.eg-help{margin-top:100px}
.eg-choice__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:35px}
.eg-choice__card{position:relative;display:flex;flex-direction:column;min-height:300px;padding:30px;border:1px solid var(--eg-line);background:var(--eg-panel);transition:border-color .2s ease,transform .2s ease}
.eg-choice__card:hover{border-color:#6cdfff;transform:translateY(-2px)}
.eg-choice__eyebrow{color:#c0cbd3;font:500 14px/1.3 Arial,sans-serif}
.eg-choice__card strong{display:block;margin-top:15px;font:700 clamp(27px,2.5vw,38px)/1.08 Arial,sans-serif;letter-spacing:-.03em}
.eg-choice__description{display:block;max-width:520px;margin-top:17px;color:#d0dce3;font-size:14px;line-height:1.6}
.eg-choice__features{list-style:none;display:grid;gap:13px;margin:30px 0 32px;padding:0}
.eg-choice__features li{display:flex;align-items:center;gap:12px;color:#deebf0;font-size:14px;line-height:1.4}
.eg-choice__features li::before{content:"✓";display:grid;place-items:center;flex:none;width:29px;height:29px;border-radius:50%;background:#3d4853;color:#f1f9fb;font:700 17px/1 Arial,sans-serif}
.eg-choice__action{display:inline-flex;align-items:center;justify-content:center;align-self:center;min-width:205px;min-height:46px;margin-top:auto;padding:10px 20px;background:var(--eg-cyan);color:#091924;font-size:13px;font-weight:700;box-shadow:5px 5px 0 #285da6}
.eg-choice__card:hover .eg-choice__action{background:#a7efff}
.eg-install{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(26px,4vw,65px);align-items:center;padding:42px;border:1px solid var(--eg-line);background:var(--eg-panel)}
.eg-list{list-style:none;display:grid;gap:0;margin:24px 0 21px;padding:0}
.eg-list li{display:grid;grid-template-columns:38px minmax(0,1fr);gap:15px;padding:17px 0;border-top:1px solid var(--eg-line);color:#d4e4ed;font-size:14px;line-height:1.6}
.eg-list li b{display:grid;place-items:center;align-self:start;width:32px;height:32px;border-radius:50%;background:#3d4853;color:#f1f9fb;font:800 12px var(--os-mono),monospace}
.eg-text-link{color:#70dffe;border-bottom:1px solid currentColor;font-size:14px;font-weight:750}
.eg-text-link:hover{color:#b6f3ff}
.eg-shot{min-width:0;margin:0;border:1px solid var(--eg-line);background:#0e1720}
.eg-shot img{display:block;width:100%;height:auto}
.eg-shot__open{display:block;position:relative;cursor:zoom-in}
.eg-shot__open span{position:absolute;right:9px;bottom:9px;padding:7px 9px;background:#071a23e6;border:1px solid #5bc9e2;color:#b9f2ff;font:800 9px var(--os-mono),monospace;letter-spacing:.05em}
.eg-shot figcaption{border-top:1px solid var(--eg-line);padding:14px 17px;color:#a8bdc9;font-size:12px;line-height:1.5}
.eg-files{display:grid;grid-template-columns:1fr auto;gap:24px 35px;padding:35px 0;border-top:1px solid var(--eg-line);border-bottom:1px solid var(--eg-line)}
.eg-files>div:first-child{max-width:750px}
.eg-files>div:first-child p{font-size:15px}
.eg-files__types{display:flex;align-items:center;gap:0;align-self:end;border:1px solid var(--eg-line);background:var(--eg-panel)}
.eg-files__types span{display:grid;gap:4px;min-width:112px;padding:13px 16px;border-right:1px solid var(--eg-line)}
.eg-files__types span:last-child{border-right:0}
.eg-files__types b{font:850 25px var(--os-mono),monospace;color:#75e5ff}
.eg-files__types small{font:700 9px var(--os-mono),monospace;letter-spacing:.03em;color:#9dbac9}
.eg-files__note{grid-column:1/-1;padding:13px 16px;border-left:3px solid #64d9f5;background:var(--eg-panel);font-size:13px!important}
.eg-flow{padding-top:7px}
.eg-flow__grid{display:grid;grid-template-columns:minmax(310px,.86fr) minmax(0,1.14fr);gap:clamp(28px,5vw,75px);align-items:start;margin-top:35px}
.eg-list--flow{margin:0}
.eg-list--flow li{grid-template-columns:45px minmax(0,1fr);padding:22px 0;font-size:16px}
.eg-list--flow li:last-child{border-bottom:1px solid var(--eg-line)}
.eg-list--flow li b{font-size:13px}
.eg-shot--auto{max-height:750px;overflow:hidden}
.eg-shot--auto img{max-height:680px;object-fit:cover;object-position:top}
.eg-flow--manual{padding:40px;border:1px solid var(--eg-line);background:var(--eg-panel)}
.eg-manual{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:45px;align-items:center}
.eg-manual__diagram{display:grid;gap:10px}
.eg-manual__diagram div{padding:20px;border:1px solid var(--eg-line);background:#182632}
.eg-manual__diagram div span{display:block;color:#72d7ef;font:800 10px var(--os-mono),monospace;letter-spacing:.08em}
.eg-manual__diagram div strong{display:block;margin-top:8px;font-size:19px}
.eg-manual__diagram i{font-size:23px;line-height:1;color:#73d9f0;text-align:center;font-style:normal;transform:rotate(90deg)}
.eg-help__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:30px}
.eg-help details{border:1px solid var(--eg-line);background:var(--eg-panel);min-height:94px}
.eg-help summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px;font-size:14px;font-weight:700;line-height:1.3;color:var(--eg-ink)}
.eg-help summary::-webkit-details-marker{display:none}
.eg-help summary::after{content:"+";font:700 22px var(--os-mono),monospace;color:var(--eg-cyan)}
.eg-help details[open] summary::after{content:"−"}
.eg-help details p{padding:0 22px 22px;font-size:13px}
.eg-bottom{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:110px;padding:40px;border:1px solid var(--eg-line);background:var(--eg-panel)}
.eg-bottom h2{font-size:clamp(29px,3vw,45px);max-width:750px}
.eg-bottom p{max-width:640px}
.eg-bottom .eg-button{flex:none}
@media(max-width:1200px){.eg-hero{grid-template-columns:1fr}.eg-route{max-width:730px}.eg-install,.eg-flow__grid{grid-template-columns:1fr}.eg-shot--auto{max-width:780px}.eg-help__grid{grid-template-columns:1fr 1fr}.eg-files{grid-template-columns:1fr}.eg-files__types{justify-self:start}}
@media(max-width:820px){.eg{padding:36px 20px 80px}.eg-hero{min-height:0;padding-bottom:65px}.eg-choice,.eg-install,.eg-files,.eg-flow,.eg-help{margin-top:72px}.eg-flow--manual{padding:28px}.eg-manual{grid-template-columns:1fr}.eg-bottom{margin-top:80px}}
@media(max-width:600px){.eg{padding:28px 15px 65px}.eg h1{font-size:clamp(42px,12vw,63px)}.eg h2{font-size:clamp(32px,9vw,46px)}.eg-hero{gap:37px}.eg-route{padding:16px}.eg-route__steps{padding:30px 0;gap:3px}.eg-route__steps strong{font-size:12px}.eg-route__steps small{font-size:10px}.eg-route__number{font-size:18px}.eg-route__arrow{font-size:13px}.eg-hero__actions{align-items:stretch}.eg-hero__actions .eg-button{width:100%}.eg-choice__grid{grid-template-columns:1fr}.eg-choice__card{min-height:225px}.eg-install{padding:23px;gap:30px}.eg-files__types{width:100%}.eg-files__types span{min-width:0;flex:1;padding:11px 7px}.eg-files__types b{font-size:20px}.eg-files__types small{font-size:8px;word-break:break-word}.eg-list--flow li{font-size:14px}.eg-help__grid{grid-template-columns:1fr}.eg-bottom{display:grid;padding:24px}.eg-bottom .eg-button{width:100%}}
@media(prefers-reduced-motion:reduce){.eg-button,.eg-choice__card{transition:none}.eg-button:hover,.eg-choice__card:hover{transform:none}}