:root{--bg:#061015;--panel:#0b181e;--line:#1b323b;--text:#edf6f3;--muted:#91a8ae;--green:#62ed98;--shadow:0 24px 80px #0007}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 18% 10%,#0c2a22 0,transparent 28%),var(--bg);color:var(--text);font:15px/1.65 Inter,system-ui,sans-serif}.siteHeader{height:76px;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:0 24px;border-bottom:1px solid #ffffff0d}.siteBrand{color:var(--green);text-decoration:none;letter-spacing:.08em}.siteHeader nav{display:flex;align-items:center;gap:26px}.siteHeader nav a,footer a{color:var(--muted);text-decoration:none}.siteHeader nav a:hover,footer a:hover{color:var(--green)}.siteLogin,.sitePrimary{background:var(--green)!important;color:#07130c!important;padding:11px 18px;border-radius:10px;text-decoration:none;font-weight:800}.siteHero{min-height:650px;max-width:1180px;margin:auto;padding:90px 24px;display:grid;grid-template-columns:1.35fr .65fr;gap:70px;align-items:center}.siteBadge,.siteSectionHead span,.siteCta span{color:var(--green);font:700 12px/1.2 ui-monospace,monospace;letter-spacing:.16em}.siteHero h1{font-size:clamp(42px,6vw,76px);line-height:1.02;margin:24px 0}.siteHero h1 em{color:var(--green);font-style:normal}.siteHero p{max-width:680px;color:var(--muted);font-size:18px}.siteActions{display:flex;gap:13px;margin-top:35px}.siteGhost{border:1px solid var(--line);color:var(--text);padding:10px 18px;border-radius:10px;text-decoration:none}.siteMetric{padding:40px;border:1px solid var(--line);background:#08161bd9;border-radius:24px;box-shadow:var(--shadow);display:grid;gap:8px}.siteMetric span{color:var(--muted);font-size:12px;letter-spacing:.14em}.siteMetric b{font-size:54px;color:var(--green)}.siteMetric small{color:var(--muted)}.siteSection{max-width:1180px;margin:0 auto;padding:80px 24px}.siteSectionHead h2{font-size:36px;margin:8px 0 30px}.featureGrid,.toolGrid,.articleGrid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.featureGrid article,.toolGrid a,.articleGrid article{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:23px;color:var(--text);text-decoration:none}.featureGrid article>b,.toolGrid a>b{color:var(--green)}.featureGrid h3{margin:18px 0 6px}.featureGrid p,.articleGrid p{color:var(--muted);margin:0}.toolGrid{grid-template-columns:repeat(3,1fr)}.toolGrid a{display:grid;gap:5px}.toolGrid span{color:var(--muted)}.articleGrid{grid-template-columns:repeat(3,1fr)}.articleGrid h3{margin:8px 0}.articleGrid a{color:var(--green)}.siteMuted{color:var(--muted)}.siteCta{max-width:1132px;margin:60px auto 100px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(135deg,#0d2922,#0b171d);padding:38px;display:flex;justify-content:space-between;align-items:center}.siteCta h2{margin:8px 0 0}footer{border-top:1px solid var(--line);max-width:1180px;margin:auto;padding:35px 24px;display:flex;justify-content:space-between;color:var(--muted)}.calcShell,.articleShell{max-width:900px;margin:60px auto;padding:0 24px}.calcCard,.articleBody{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:28px}.calcGrid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.calcResult{margin-top:18px;padding:18px;border-radius:12px;background:#071115;color:var(--green);white-space:pre-line}.shareRow{display:flex;gap:10px;margin-top:16px}.shareRow button,.calcCard button{border:0;border-radius:10px;padding:12px 16px;background:var(--green);color:#07130c;font-weight:800;cursor:pointer}.calcCard input,.calcCard select{width:100%;background:#061015;border:1px solid var(--line);color:var(--text);padding:12px;border-radius:9px}.calcCard label{display:grid;gap:6px;color:var(--muted)}@media(max-width:800px){.siteHeader nav>a:not(.siteLogin){display:none}.siteHero{grid-template-columns:1fr;padding-top:55px}.siteMetric{display:none}.featureGrid,.toolGrid,.articleGrid{grid-template-columns:1fr}.siteCta{margin:40px 15px 70px;display:grid;gap:24px}.calcGrid{grid-template-columns:1fr}footer{display:grid;gap:10px}.siteHero h1{font-size:44px}}
.articleLinks{margin-top:34px;padding-top:20px;border-top:1px solid var(--line)}.articleLinks h2{margin:0 0 14px}.articleLinks a{display:inline-flex;margin:0 8px 8px 0}
.libraryShell{max-width:1180px;margin:54px auto 100px;padding:0 24px}.libraryShell>h1,.calcShell>h1,.articleShell>h1{font-size:clamp(34px,5vw,56px);line-height:1.1;margin:18px 0}.siteLead{max-width:820px;color:#b4c6c2;font-size:18px;line-height:1.75}.breadcrumb{display:flex;align-items:center;gap:9px;overflow:hidden;margin:0 0 28px;color:var(--muted);font-size:13px;white-space:nowrap}.breadcrumb a{color:var(--green);text-decoration:none}.breadcrumb span:last-child{overflow:hidden;text-overflow:ellipsis}.articleMeta{color:var(--muted);font-size:13px;margin:16px 0 30px}.seoContent{margin-top:32px}.articleBody.seoContent{margin-top:30px}.seoSection{padding:6px 0 20px}.seoSection+.seoSection{border-top:1px solid #ffffff0b;padding-top:25px}.seoSection h2{font-size:26px;line-height:1.25;margin:0 0 14px}.seoSection h3{line-height:1.35}.seoSection p{color:#bdcbc8;margin:0 0 15px}.seoList{margin:12px 0 0;padding-left:22px;color:#bdcbc8}.seoList li{padding:4px 0}.faqList{display:grid;gap:10px}.faqList details{border:1px solid var(--line);background:#071318;border-radius:12px;padding:14px 16px}.faqList summary{cursor:pointer;color:var(--text);font-weight:750}.faqList details p{margin:10px 0 0}.seoNotice,.seoSource{display:block;margin-top:25px;border-left:3px solid var(--green);background:#0a1a1c;padding:17px 19px;border-radius:0 12px 12px 0;color:#b8cac5}.relatedGrid,.libraryGrid{margin-top:22px}.relatedGrid article{padding:18px}.articleGrid h2,.articleGrid h3{line-height:1.35;margin:8px 0}.relatedTools{grid-template-columns:repeat(2,minmax(0,1fr))}.relatedTools a{padding:17px}.relatedTools span{font-size:13px}.sectionAction{margin-top:25px}.sectionAction a{display:inline-flex}.calcCard>#calculateBtn{margin-top:18px}.calcResult.error{color:#ff8790}.libraryGrid.articleGrid{grid-template-columns:repeat(3,minmax(0,1fr))}.libraryGrid.toolGrid{grid-template-columns:repeat(2,minmax(0,1fr))}.libraryGrid article,.libraryGrid>a{min-height:100%}
@media(max-width:800px){.libraryShell{margin-top:35px}.libraryShell>h1,.calcShell>h1,.articleShell>h1{font-size:36px}.siteLead{font-size:16px}.articleBody,.calcCard{padding:20px}.seoSection h2{font-size:23px}.relatedTools,.libraryGrid.articleGrid,.libraryGrid.toolGrid{grid-template-columns:1fr}.breadcrumb{margin-bottom:22px}.siteHeader nav .siteLogin{padding:9px 12px}.siteHeader{padding:0 16px}.siteBrand{font-size:12px}}