:root{--nav-theme:45 92% 55%;--nav-theme-light:45 92% 65%;--accent:4 70% 45%;--ink:20 12% 14%;--ink-soft:20 8% 36%;--paper:45 45% 98%;--card:0 0% 100%;--line:45 22% 86%;--radius:16px;--radius-sm:10px;--maxw:1080px;--shadow:0 8px 30px #28221f14;--shadow-sm:0 2px 10px #28221f0f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:hsl(var(--ink));background:hsl(var(--paper));-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100dvh;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.65;display:flex}h1,h2,h3,h4{color:hsl(var(--ink));line-height:1.2}h1{margin:0 0 .5em;font-size:clamp(2rem,5vw,3.2rem)}h2{margin:0 0 .6em;font-size:clamp(1.5rem,3.5vw,2.1rem)}h3{margin:1.6em 0 .5em;font-size:1.25rem}p{margin:0 0 1em}a{color:hsl(var(--accent));text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%;height:auto}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid hsl(var(--accent));outline-offset:2px;border-radius:4px}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-header{z-index:50;background:hsl(var(--card) / .85);backdrop-filter:saturate(160%)blur(10px);border-bottom:1px solid hsl(var(--line));position:sticky;top:0}.nav{min-height:64px;max-width:var(--maxw);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin:0 auto;padding:0 20px;display:flex}.brand{color:hsl(var(--ink));white-space:nowrap;font-size:1.1rem;font-weight:800}.brand:hover{text-decoration:none}.nav-toggle{display:none}.nav-links{flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;display:flex}.nav-links a{color:hsl(var(--ink-soft));border-radius:999px;padding:8px 14px;font-size:.95rem;font-weight:600;display:inline-block}.nav-links a:hover{background:hsl(var(--nav-theme-light) / .5);text-decoration:none}.nav-links a[aria-current=page]{background:hsl(var(--nav-theme));color:hsl(var(--ink))}main{flex:1 0 auto}.section{padding:56px 0}.section-alt{background:hsl(var(--nav-theme-light) / .35)}.hero{background:radial-gradient(1200px 400px at 80% -10%, hsl(var(--nav-theme-light) / .8), transparent 60%), hsl(var(--paper));border-bottom:1px solid hsl(var(--line));padding:72px 0 64px}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:hsl(var(--accent));background:hsl(var(--accent) / .1);border-radius:999px;margin-bottom:16px;padding:4px 12px;font-size:.8rem;font-weight:700;display:inline-block}.hero h1{letter-spacing:-.02em}.hero .lead{color:hsl(var(--ink-soft));max-width:60ch;font-size:1.2rem}.stat-chips{flex-wrap:wrap;gap:10px;margin:22px 0;display:flex}.chip{background:hsl(var(--card));border:1px solid hsl(var(--line));box-shadow:var(--shadow-sm);border-radius:999px;padding:7px 14px;font-size:.9rem;font-weight:600}.cta-row{flex-wrap:wrap;gap:12px;margin-top:18px;display:flex}.btn{cursor:pointer;border:2px solid #0000;border-radius:999px;align-items:center;gap:8px;padding:12px 22px;font-size:1rem;font-weight:700;transition:transform 80ms,box-shadow .15s;display:inline-flex}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:hsl(var(--nav-theme));color:hsl(var(--ink));border-color:hsl(var(--nav-theme))}.btn-primary:hover{box-shadow:var(--shadow)}.btn-secondary{color:hsl(var(--ink));border-color:hsl(var(--line));background:0 0}.btn-secondary:hover{background:hsl(var(--nav-theme-light) / .4)}.btn-accent{background:hsl(var(--accent));color:#fff;border-color:hsl(var(--accent))}.btn-accent:hover{box-shadow:var(--shadow)}.card-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:8px;display:grid}.card{background:hsl(var(--card));border:1px solid hsl(var(--line));border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px;transition:transform .1s,box-shadow .15s}.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.card .num{background:hsl(var(--nav-theme));border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;margin-bottom:12px;font-weight:800;display:inline-flex}.card h3{margin:0 0 6px;font-size:1.15rem}.card p{color:hsl(var(--ink-soft));margin:0;font-size:.96rem}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:24px 0;display:grid}.stat-box{background:hsl(var(--card));border:1px solid hsl(var(--line));border-radius:var(--radius-sm);padding:14px 16px}.stat-box .label{color:hsl(var(--ink-soft));text-transform:uppercase;letter-spacing:.04em;font-size:.8rem}.stat-box .value{margin-top:4px;font-size:1.15rem;font-weight:800}.table-wrap{border:1px solid hsl(var(--line));border-radius:var(--radius);margin:20px 0;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:640px;font-size:.95rem}th,td{text-align:left;border-bottom:1px solid hsl(var(--line));padding:10px 14px}thead th{background:hsl(var(--nav-theme-light) / .4);font-weight:700}tbody tr:nth-child(2n){background:hsl(var(--paper))}code{background:hsl(var(--nav-theme-light) / .45);border-radius:6px;padding:1px 6px;font-size:.9em}.note{border-left:4px solid hsl(var(--accent));background:hsl(var(--accent) / .07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:20px 0;padding:14px 18px;font-size:.95rem}.note strong{color:hsl(var(--accent))}.note-inline{color:hsl(var(--ink-soft));border-left:3px solid hsl(var(--line));margin:10px 0 0;padding-left:12px;font-size:.9rem}.breadcrumb{color:hsl(var(--ink-soft));margin:16px 0 0;font-size:.9rem}.breadcrumb a{color:hsl(var(--ink-soft))}.site-footer{background:hsl(var(--ink));color:#eae5d7;flex-shrink:0;margin-top:40px;padding:40px 0 28px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;display:grid}.site-footer h4,.site-footer .footer-h{color:#fff;margin:0 0 10px;font-size:1rem;font-weight:500}.site-footer a{color:#ebdbad}.site-footer p{color:#ccc6b3;font-size:.92rem}.footer-links{gap:8px;margin:0;padding:0;list-style:none;display:grid}.footer-bottom{color:#b3ac98;border-top:1px solid #5c543d;margin-top:24px;padding-top:16px;font-size:.85rem}.footer-legal{flex-wrap:wrap;gap:10px;margin:0 0 10px;font-size:.9rem;display:flex}.footer-legal a{color:#f0e4c2;text-underline-offset:3px;text-decoration:underline}.contact-email{margin:18px 0}.ad-slot{text-align:center;min-height:1px;margin:28px 0}.ad-slot ins{background:hsl(var(--nav-theme-light) / .18)}@media (width<=720px){.footer-grid{grid-template-columns:1fr}.nav{flex-flow:wrap;align-items:center;gap:8px;height:auto;padding:10px 20px}.nav-toggle{border:1px solid hsl(var(--line));background:hsl(var(--card));min-height:44px;color:hsl(var(--ink));font:inherit;cursor:pointer;border-radius:999px;align-items:center;gap:6px;margin-left:auto;padding:8px 16px;font-size:.95rem;font-weight:700;display:inline-flex}.nav-toggle[aria-expanded=true]{background:hsl(var(--nav-theme-light) / .5)}.nav-links{flex-direction:column;flex-basis:100%;gap:2px;margin-top:6px;padding-bottom:6px;display:none}.nav-links.is-open{display:flex}.nav-links a{border-radius:10px;padding:11px 12px;display:block}.section{padding:40px 0}}.skip-link{background:hsl(var(--nav-theme));color:hsl(var(--ink));z-index:100;border-radius:0 0 10px;padding:10px 16px;font-weight:700;position:absolute;top:0;left:-999px}.skip-link:focus{left:0}.tools-wrap{max-width:860px;margin:0 auto}.tools-wrap .intro{text-align:center;margin:8px 0 20px}.tools-wrap .intro h1{margin:0 0 6px;font-size:clamp(1.6rem,4vw,2.2rem)}.tools-wrap .intro p{color:hsl(var(--ink-soft));margin:0}.tools-wrap .tool{border:1px solid hsl(var(--line));border-radius:var(--radius);background:hsl(var(--card));margin:18px 0;padding:20px}.tools-wrap .tool h2{margin:0 0 4px;font-size:1.25rem}.tools-wrap .tool .sub{color:hsl(var(--ink-soft));margin:0 0 14px;font-size:.88rem}.tools-wrap label{margin:14px 0 6px;font-size:.9rem;font-weight:700;display:block}.tools-wrap .row{flex-wrap:wrap;gap:8px;display:flex}.tools-wrap .chip{border:1px solid hsl(var(--line));background:hsl(var(--card));cursor:pointer;user-select:none;border-radius:999px;padding:8px 14px;font-size:.9rem;transition:all .15s}.tools-wrap .chip[aria-pressed=true],.tools-wrap .chip.active{background:hsl(var(--nav-theme));border-color:hsl(var(--nav-theme));color:hsl(var(--ink));font-weight:700}.tools-wrap select{border:1px solid hsl(var(--line));background:#fff;border-radius:8px;padding:8px 10px;font-size:.95rem}.tools-wrap .cables{flex-wrap:wrap;gap:8px;display:flex}.tools-wrap button.solve{background:hsl(var(--accent));color:#fff;cursor:pointer;border:0;border-radius:10px;margin-top:16px;padding:11px 20px;font-size:1rem;font-weight:700}.tools-wrap button.solve:hover{filter:brightness(1.05)}.tools-wrap .out{background:hsl(var(--nav-theme-light) / .35);border:1px dashed 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hsl(var(--line));border-radius:10px;margin-top:10px;padding:12px}.tools-wrap .role-card b{color:hsl(var(--accent))}.faq-block{margin-top:40px}.faq-block h2{margin-bottom:16px}.faq-item{border:1px solid hsl(var(--line));background:#fff;border-radius:10px;margin-bottom:10px;overflow:hidden}.faq-item summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;font-size:1rem;font-weight:600;list-style:none;display:flex}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:hsl(var(--accent));flex-shrink:0;font-size:1.3rem;line-height:1}.faq-item[open] summary:after{content:"−"}.faq-item summary:focus-visible{outline:2px solid hsl(var(--nav-theme));outline-offset:-2px}.faq-answer{color:hsl(var(--ink-soft));padding:0 16px 16px;line-height:1.7}.faq-answer strong{color:hsl(var(--ink))}.tool-help{background:hsl(var(--card));border:1px solid hsl(var(--line));border-radius:var(--radius-sm);margin-top:18px;padding:14px 18px}.tool-help h3{margin:0 0 8px;font-size:1rem}.tool-help p{color:hsl(var(--ink-soft));margin:0 0 8px;font-size:.95rem}.tool-help p:last-child{margin-bottom:0}.tool-help a{color:hsl(var(--accent));font-weight:500}.related{border-top:1px solid hsl(var(--line));margin-top:36px;padding-top:20px}.related h2{margin:0 0 12px;font-size:1.1rem}.related-links{flex-wrap:wrap;gap:10px;display:flex}.related-links a{border:1px solid hsl(var(--line));color:hsl(var(--ink));background:hsl(var(--card));border-radius:999px;padding:8px 14px;font-size:.92rem;display:inline-block}.related-links a:hover{border-color:hsl(var(--accent));color:hsl(var(--accent))}.hero-source{color:hsl(var(--ink-soft));opacity:.9;margin:10px 0 0;font-size:.82rem}.loop-steps{counter-reset:none;gap:10px;margin:18px 0 0;padding:0;list-style:none;display:grid}.loop-steps li{background:hsl(var(--card));border:1px solid hsl(var(--line));border-radius:var(--radius-sm);grid-template-columns:260px 1fr;align-items:start;gap:14px;padding:12px 16px;font-size:.95rem;display:grid}.loop-steps li strong{color:hsl(var(--ink))}.loop-steps li span{color:hsl(var(--ink-soft))}.last-updated{color:hsl(var(--accent));white-space:nowrap;margin-left:6px;font-weight:600;display:inline-block}@media (width<=640px){.loop-steps li{grid-template-columns:1fr;gap:4px}table{min-width:0;font-size:.9rem}th,td{min-width:88px;padding:8px 10px}}@media print{.nav,.site-footer,.skip-link,.btn,.ad-slot,.adslot,.hero,.breadcrumb,.related{display:none!important}body{color:#000;background:#fff}.section{padding:0}.table-wrap{page-break-inside:avoid;border:1px solid #999;overflow:visible}table{page-break-inside:avoid}h2{page-break-after:avoid}a{color:#000;text-decoration:none}}
