@font-face{font-family:NotoKR;src:url('/assets/noto-sans-kr-400.woff2')format('woff2');font-weight:400;font-display:swap}@font-face{font-family:NotoKR;src:url('/assets/noto-sans-kr-700.woff2')format('woff2');font-weight:700;font-display:swap}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:#f7f9fa;color:#133b59;font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}html[lang=ko] body{font-family:NotoKR,system-ui,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}img{max-width:100%;height:auto}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #b94e2e;outline-offset:4px}header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:18px max(22px,calc((100vw - 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30px;margin:auto}.reading{max-width:820px;padding:65px 30px 80px;margin:auto}h1,h2,h3{line-height:1.08;letter-spacing:-.045em;margin:0 0 24px;font-weight:800;overflow-wrap:anywhere}h1{font-size:clamp(42px,5.1vw,76px)}h2{font-size:clamp(29px,3vw,42px)}h3{font-size:25px}p{margin:0 0 24px;overflow-wrap:anywhere}.lead{font-size:21px;line-height:1.6;max-width:680px}.eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:11px;font-weight:750;color:#3b5e72;margin-bottom:24px}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:65px;min-height:690px;padding:70px 0}.hero h1{font-size:clamp(54px,6vw,84px)}.hero h1 span{color:#b94e2e}.hero .lead{font-size:20px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0}.button,button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 20px;border-radius:8px;border:2px solid #133b59;background:#133b59;color:white;text-decoration:none;font-size:14px;font-weight:750;line-height:1.5}.outline{background:transparent;color:#133b59}.text-app{font-size:14px;font-weight:700}.track-art{height:450px;position:relative;transform:rotate(-12deg)}.track{position:absolute;border:2px solid #8eafc1;border-radius:130px;inset:25px 0}.t2{inset:55px 30px}.t3{inset:85px 60px;background:#e7f2f6}.track-word{position:absolute;left:95px;top:130px;font-size:56px;line-height:1.05;letter-spacing:-4px;transform:rotate(12deg)}.marker{position:absolute;background:#f3bba4;border:2px solid #133b59;border-radius:7px;font-size:13px;font-weight:750;padding:9px 15px;transform:rotate(12deg)}.m1{top:12px;left:20px}.m2{top:220px;right:-10px}.m3{bottom:3px;left:60px}.caution{background:#fff0e8;border-left:5px solid #b94e2e;padding:24px 28px;margin:30px 0 55px;font-size:15px}.wide>section:not(.hero){padding:60px 0}.section-intro{max-width:680px}.feature-grid{display:grid;grid-template-columns:1fr 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1fr;align-items:center;gap:32px}.app-identity{display:flex;align-items:center;gap:10px;margin-bottom:22px;font-size:20px}.app-identity img{border-radius:10px}.app-card h2{font-size:35px}.app-card p{font-size:15px}.app-card p.small{font-size:12px;margin:18px 0 0}.product{width:190px;justify-self:center;border-radius:18px}.badges{display:flex;gap:10px;flex-wrap:wrap}.badges img{display:block;width:135px;height:40px}.small{font-size:12px}.journal{border-top:1px solid #bdced7}.journal h2{max-width:800px}.crumb{display:block;font-size:12px;margin-bottom:30px}.byline{font-size:12px;color:#3b5e72;border-bottom:1px solid #bdced7;padding-bottom:25px}.contents{display:flex;flex-direction:column;align-items:start;gap:10px;background:#e6f2f6;padding:25px;font-size:14px;margin:35px 0 50px}.reading section{margin:45px 0}.reading p{line-height:1.8}.sources{font-size:12px;border-left:2px solid #bdced7;padding-left:16px}.sources a{display:block;margin-bottom:7px}.related{display:grid;gap:14px;font-size:14px}.example-label{padding:15px;background:#dff0f7;font-weight:650;font-size:13px}.reading article{border-top:1px solid #bdced7;padding:30px 0}.reading time{font-size:13px}form{margin:30px 0}label{display:block;font-size:14px;font-weight:650;margin:18px 0}input,select,textarea{display:block;width:100%;max-width:100%;margin-top:9px;background:white;color:#133b59;border:1px solid #7696a9;border-radius:7px;padding:12px;font-size:16px;font-weight:400}textarea{min-height:110px;resize:vertical}fieldset{border:1px solid #adc6d3;border-radius:12px;margin:30px 0;padding:10px 24px 24px}legend{font-size:20px;font-weight:750;line-height:1.3;padding:0 10px;max-width:100%}pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;font:14px/1.8 ui-monospace,monospace;color:#133b59;background:white;border:1px solid #adc6d3;border-radius:12px;padding:24px}#status{font-size:13px;background:#dff0f7;padding:15px}.tool-actions{gap:10px}footer{display:grid;grid-template-columns:1fr 1fr;gap:35px;background:#133b59;color:#fff;padding:55px max(30px,calc((100vw - 1220px)/2)) 90px;font-size:14px}footer>div:nth-child(2){display:grid;gap:12px;align-content:start}footer>p{grid-column:1/-1;max-width:800px}footer .brand{margin-bottom:22px}.sticky{position:fixed;bottom:18px;right:22px;z-index:19;background:#9b3c21;color:white;border:2px solid white;box-shadow:0 3px 15px #133b5930;padding:10px 20px;font-size:13px;font-weight:750;text-decoration:none;border-radius:100px}html[dir=rtl] .sticky{right:auto;left:22px}html[dir=rtl] details div{left:auto;right:0}html[dir=rtl] .caution{border-left:0;border-right:5px solid #b94e2e}html[dir=rtl] .sources{border-left:0;border-right:2px solid #bdced7;padding-left:0;padding-right:16px}@media(max-width:1050px){header{padding:15px 22px}.menu{display:block;background:transparent;color:#133b59;padding:6px 12px;min-height:40px}#navigation{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;padding:25px;max-height:75vh;overflow:auto;box-shadow:0 10px 20px #133b5925}#navigation.open{display:flex;flex-direction:column;align-items:stretch;gap:18px}details div{position:static;box-shadow:none;width:100%;max-height:none;border:0;padding:5px 10px}.hero{gap:30px}.track-art{height:350px}.track-word{font-size:46px;left:75px;top:110px}.t3{inset:75px 45px}.m2{top:180px}.guide-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:700px){header{padding:15px 18px}.brand{font-size:20px}.wide{padding:0 22px}.reading{padding:40px 22px 65px}.hero{grid-template-columns:1fr;gap:25px;padding:48px 0 35px}.hero h1{font-size:clamp(49px,10vw,70px)}.hero .lead{font-size:18px}.hero .actions{flex-direction:column;align-items:stretch}.track-art{height:300px;max-width:380px;width:95%;margin:25px auto 10px}.track-word{font-size:42px;left:75px;top:95px}.marker{font-size:11px;padding:7px 10px}.m2{top:150px;right:-5px}.t1{inset:15px 0}.t2{inset:40px 25px}.t3{inset:65px 50px}.guide-grid,.feature-grid{grid-template-columns:1fr}.feature{padding:27px}.feature h3{font-size:32px}.wide>section:not(.hero){padding:35px 0}.caution{padding:22px;margin-bottom:35px}.app-card{grid-template-columns:1fr;padding:26px;gap:28px}.app-card h2{font-size:32px}.app-card .product{width:185px}.badges img{width:127px;height:auto}.badges{gap:8px}.reading .app-card{margin:35px -3px}footer{grid-template-columns:1fr;padding:40px 25px 85px;gap:20px}.sticky{right:16px;bottom:14px}.contents{padding:22px}h1{font-size:43px}.lead{font-size:19px}fieldset{padding:8px 16px 20px}legend{font-size:18px}.tool-actions{flex-direction:column}.tool-actions button{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

fieldset{min-width:0}form{min-width:0}pre{max-width:100%}

.hero>div{min-width:0}@media(max-width:700px){.track-art{width:82%;margin:25px auto 10px}}

.track-word{max-width:calc(100% - 95px);overflow-wrap:anywhere}.marker{max-width:45%;line-height:1.25;overflow-wrap:anywhere}@media(max-width:360px){.reading h1{font-size:35px}.track-word{font-size:35px;left:60px;max-width:calc(100% - 75px)}}
/* Preserve Korean word groups and avoid isolated title fragments on narrow screens. */
html[lang=ko] h1,html[lang=ko] h2,html[lang=ko] h3,html[lang=ko] p{word-break:keep-all;overflow-wrap:break-word}h1,h2,h3{text-wrap:balance}@media(max-width:700px){html[lang=ru] .hero h1{font-size:42px}}@media(max-width:360px){html[lang=ru] .hero h1{font-size:36px}html[lang=zh-Hans] .hero h1{font-size:43px}}
@media(max-width:700px){html[lang=zh-Hans] .track-word,html[lang=ja] .track-word,html[lang=ko] .track-word{font-size:28px;letter-spacing:-1px}}@media(max-width:360px){header{gap:12px}.brand{font-size:18px}.menu{padding:6px 8px;flex-shrink:0}}
@media(max-width:700px){html[lang=zh-Hans] .m2,html[lang=ja] .m2,html[lang=ko] .m2{top:190px}}
@media(min-width:701px){html[lang=ru] .hero h1{font-size:clamp(45px,4.4vw,63px)}}

@media(max-width:700px){html[lang=ar] .m2{top:215px}}

/* Mobile nav containment: inline accordion panels stay within the full nav row. */
@media(max-width:800px){
header nav{min-width:0;max-width:100%;box-sizing:border-box;max-height:calc(100vh - 140px);max-height:calc(100dvh - 140px);overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;scroll-padding-block:12px}
header nav details{position:static;width:100%;min-width:0;max-width:100%;box-sizing:border-box}
html header nav details>div{position:static;inset:auto;width:100%;min-width:0;max-width:100%;box-sizing:border-box;max-height:none;overflow:visible}
header nav a,header nav summary{max-width:100%;white-space:normal;overflow-wrap:anywhere;box-sizing:border-box}
}

header nav a[lang=ko]{font-family:NotoKR,Arial,sans-serif}