:root{--ink:#203b3a;--muted:#536966;--teal:#006f70;--mint:#e4f2eb;--paper:#fffdf7;--line:#cddbd3;--accent:#c26a39;--white:#fff;--reading:720px;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:19px;line-height:1.95;letter-spacing:.025em}a{color:var(--teal);text-underline-offset:5px}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.wrap{width:min(1100px,calc(100% - 72px));margin:auto}.review-bar{display:flex;align-items:center;justify-content:center;gap:10px;padding:9px 18px;background:#e9ede5;font-size:16px;font-weight:700;line-height:1.65}.review-dot{width:8px;height:8px;border-radius:50%;background:var(--teal)}.review-detail{font-weight:400;margin-left:12px}.site-header{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-top:25px;padding-bottom:25px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:19px;font-weight:750;line-height:1.4}.brand img{border-radius:10px}.brand small{display:block;color:var(--muted);font-size:13px;line-height:1.7;font-weight:400;margin-top:3px}.header-link{font-size:16px;text-decoration:none}.header-link span{margin-left:12px}.article-hero{padding:65px 0 60px}.eyebrow{color:var(--teal);font-weight:700;font-size:16px;letter-spacing:.1em;margin:0 0 19px}h1{font-size:clamp(38px,4.7vw,57px);line-height:1.55;letter-spacing:.045em;font-weight:800;margin:0 0 28px}h1 span{color:var(--teal)}.hero-answer{display:inline-block;white-space:nowrap}.hero-lead{font-size:21px;line-height:2;margin:0 0 27px}.byline{display:flex;gap:25px;flex-wrap:wrap;font-size:15px;color:var(--muted);padding:0 0 30px}.answer{padding:26px 32px 22px;border-left:4px solid var(--teal);background:var(--mint);max-width:900px}.answer-label{display:block;font-size:15px;letter-spacing:.12em;font-weight:700;color:var(--teal);margin-bottom:7px}.answer p{margin:7px 0}.small{font-size:16px;line-height:1.85;color:var(--muted)}.article-layout{display:grid;grid-template-columns:230px minmax(0,var(--reading));gap:70px;align-items:start}.contents{position:sticky;top:30px;font-size:16px;border-top:2px solid var(--teal);padding-top:17px}.contents>p{font-weight:700;margin:0 0 12px}.contents ol{padding:0;list-style:none;margin:0}.contents li{margin:8px 0}.contents a{display:block;text-decoration:none;color:var(--muted);padding:5px 0}.contents a:hover{color:var(--teal);text-decoration:underline}.article-body{min-width:0}.article-body section{padding:0 0 55px;margin-bottom:50px;border-bottom:1px solid var(--line);scroll-margin-top:24px}.section-number{font-size:15px;font-weight:700;color:var(--teal);letter-spacing:.1em;margin:0 0 14px}h2{font-size:31px;line-height:1.7;letter-spacing:.025em;margin:0 0 23px}h3{font-size:21px;line-height:1.8;margin:0 0 10px}p{margin:0 0 22px}.choice-list{margin:30px 0 0}.choice-list>div{padding:20px 0;border-top:1px solid var(--line)}dt{font-weight:750;font-size:20px;color:var(--teal)}dd{margin:8px 0 0}.example-picker{background:#f0f3ea;border:1px solid #d5dfd2;border-radius:4px;padding:27px 28px;margin:30px 0}.picker-label{font-size:16px;font-weight:700;margin:0 0 15px}.example-options,.os-options{display:flex;flex-wrap:wrap;gap:9px}.example-options button,.os-options button{border:1px solid #8ba9a0;border-radius:25px;padding:9px 15px;background:var(--paper);font-size:16px;line-height:1.6;color:var(--teal)}.example-options button[aria-pressed=true],.os-options button[aria-pressed=true]{color:var(--white);background:var(--teal);border-color:var(--teal)}blockquote{border:0;margin:27px 0 19px;padding:20px 0 20px 24px;border-left:3px solid var(--accent);font-size:23px;line-height:1.95;font-weight:600;min-height:130px}.example-caption{font-size:16px;line-height:1.8;color:var(--muted);margin-bottom:0}.os-options{margin:28px 0 5px}.os-options button{min-width:150px}.steps{list-style:none;margin:0;padding:0}.steps>li{display:grid;grid-template-columns:38px minmax(0,1fr);gap:17px;padding:27px 0;border-bottom:1px solid var(--line)}.steps>li>span{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--mint);color:var(--teal);font-size:20px;font-weight:800;margin-top:3px}.steps p{margin-bottom:16px}.setting-diagram{padding:25px 20px 18px;background:#f3f5f1;border:1px solid var(--line);border-radius:10px;margin:22px 0 12px}.setting-row{display:grid;grid-template-columns:1fr 1fr;border:1px solid #9cafa7;border-radius:8px;overflow:hidden;background:#fafbf9}.setting-row>span{text-align:center;display:flex;align-items:center;justify-content:center;font-size:16px;padding:11px 7px;line-height:1.65;min-height:65px;letter-spacing:0}.setting-row .selected{color:var(--teal);background:#d7f3e8;font-weight:800;border:2px solid var(--teal);border-radius:7px}.setting-row .selected>span{margin-right:4px}.setting-diagram>p{margin:10px 0 0;color:var(--teal);font-size:16px;font-weight:700}.note{border-left:3px solid var(--accent);background:#f8eee1;margin-top:26px;padding:22px 25px}.note strong{font-size:18px}.note p{margin:10px 0 0}.key-points{margin:28px 0;background:var(--mint);padding:25px 28px;border-radius:4px}.key-points p:last-child{margin-bottom:0}.subheading{margin-top:35px}.closing{background:#e5f1e9;padding:35px 35px 30px!important;border:0!important}.closing h2{font-size:33px}.app-intro{display:flex;gap:16px;align-items:center;margin:35px 0 23px}.app-intro img{border-radius:14px}.app-intro strong{font-size:23px;display:block}.app-intro span{font-size:16px;display:block}.store-buttons{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:17px}.store-buttons a{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 18px;background:var(--teal);color:#fff;border:0;border-radius:5px;font-size:17px;line-height:1.6;flex:1 1 210px}.closing p.small:last-child{margin-bottom:0}.article-footer{color:var(--muted);font-size:16px;line-height:1.85;padding-bottom:70px}.article-footer details{padding:18px 0;border-top:1px solid var(--line)}summary{cursor:pointer;font-weight:650}.article-footer ul{padding-left:1.2em}.site-footer{display:flex;gap:25px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:25px;padding-bottom:35px;font-size:15px;color:var(--muted)}.site-footer>span:first-child{font-size:19px;font-weight:800;color:var(--teal)}.site-footer a{margin-left:auto}.skip{position:absolute;left:15px;top:-80px;padding:10px;background:white;z-index:5}.skip:focus{top:10px}@media(max-width:1000px){.article-layout{grid-template-columns:180px minmax(0,1fr);gap:35px}h2{font-size:28px}}@media(max-width:760px){body{font-size:19px;line-height:1.95}.wrap{width:calc(100% - 40px)}.review-bar{justify-content:flex-start;font-size:15px;padding:9px 20px}.review-detail{display:none}.site-header{padding:20px 0}.header-link{display:none}.brand small{font-size:14px}.article-hero{padding:39px 0 39px}.eyebrow{font-size:16px;margin-bottom:18px}h1{font-size:clamp(29px,8.5vw,43px);line-height:1.65;letter-spacing:.015em;margin-bottom:22px}.hero-lead{font-size:19px;line-height:1.95}.byline{gap:3px;font-size:15px;display:flex;flex-direction:column;padding-bottom:23px}.answer{padding:20px 20px 19px}.answer p br{display:none}.answer-label{font-size:16px}.article-layout{display:block}.contents{position:static;margin-bottom:40px;padding:17px 0 18px;border-bottom:1px solid var(--line);font-size:17px}.contents ol{display:grid;grid-template-columns:1fr;gap:2px}.contents li{margin:0}.article-body section{margin-bottom:35px;padding-bottom:35px}h2{font-size:26px;line-height:1.75}h3{font-size:21px}.choice-list{margin-top:25px}dt{font-size:20px}.example-picker{padding:21px 17px}.example-options{gap:8px}.example-options button{font-size:16px;padding:9px 13px}blockquote{font-size:21px;padding-left:17px;min-height:190px;line-height:1.95;margin-top:23px}.example-caption,.small{font-size:16px}.steps>li{grid-template-columns:31px minmax(0,1fr);gap:13px;padding:25px 0}.steps>li>span{width:30px;height:30px;font-size:18px;margin-top:5px}.setting-diagram{padding:18px 10px 15px}.setting-row>span{font-size:16px;min-height:80px;padding:8px 6px;overflow-wrap:anywhere}.setting-row .selected{display:block;padding-top:13px}.setting-row .selected>span{display:block;line-height:1.2}.setting-diagram>p{font-size:16px}.note{padding:20px 20px}.key-points{padding:22px 20px}.os-options button{min-width:0;flex:1;padding:11px 15px;font-size:17px}.closing{padding:28px 22px!important}.closing h2{font-size:28px}.app-intro{gap:12px}.app-intro img{width:50px;height:50px}.app-intro strong{font-size:21px}.app-intro span{font-size:16px}.store-buttons{gap:10px}.store-buttons a{font-size:18px;padding:15px 16px}.article-footer{padding-bottom:35px;font-size:16px}.site-footer{gap:5px 17px;font-size:16px}.site-footer a{display:block;width:100%;margin:14px 0 0}.section-number{font-size:16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.review-bar,.contents,.store-buttons{display:none}.article-layout{display:block}.article-body{max-width:760px}.wrap{width:100%}body{font-size:12pt}.article-hero{padding-top:10px}section{break-inside:avoid}}

.store-buttons a{text-decoration:none}.breadcrumbs{padding-top:22px;font-size:16px;line-height:1.85;overflow-wrap:anywhere}.breadcrumbs a{color:var(--muted)}.footer-info{display:flex;gap:12px 24px;flex-wrap:wrap;width:100%}.footer-info a{margin:0}.measurement-note{width:100%;font-size:16px;line-height:1.85}.measurement-note p{margin:18px 0 0}.site-footer .footer-brand{font-size:19px;font-weight:800;color:var(--teal);margin:0}.related{margin-top:25px}@media(max-width:760px){.footer-info a{width:auto;margin:0}.site-footer .footer-brand{width:auto}}
