:root{
  --ink:#172432;--paper:#f5f1e8;--surface:#fffdf8;--accent:#b52d38;
  --accent-soft:#f6e0df;--line:#d7d0c3;--muted:#5f6870;--code:#ece8df;
  --blue:#173a55;--shadow:0 18px 50px rgba(31,38,43,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);line-height:1.78;font-size:17px;
  font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  word-break:normal}
html:lang(ko) body{font-family:'Pretendard Variable',Pretendard,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  word-break:keep-all}
html:lang(ja) body{font-family:-apple-system,BlinkMacSystemFont,'Hiragino Sans',
  'Yu Gothic UI','Yu Gothic',Meiryo,sans-serif;word-break:normal;
  overflow-wrap:anywhere;line-break:strict}
html:lang(es) .guide-title,html:lang(es) .guide-summary,
html:lang(pt-BR) .guide-title,html:lang(pt-BR) .guide-summary{
  overflow-wrap:anywhere;hyphens:auto}
.wrap{max-width:760px;margin:0 auto;padding:0 22px}
.site-shell,.home-wrap{width:100%;max-width:1080px;margin:0 auto;padding-left:24px;padding-right:24px}
header.site{background:rgba(245,241,232,.94);border-bottom:1px solid var(--line);
  padding:14px 0;margin-bottom:46px;position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
header.site .site-shell{display:flex;align-items:center;justify-content:space-between;gap:28px}
.header-actions{display:flex;align-items:center;gap:22px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:850;
  letter-spacing:-.4px;text-decoration:none;white-space:nowrap}
.logo-mark{display:grid;place-items:center;width:38px;height:30px;background:var(--accent);
  color:#fff;font:850 14px/1 ui-monospace,'SF Mono',Consolas,monospace;letter-spacing:-.4px}
.site-nav{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:700}
.site-nav a{color:var(--muted);text-decoration:none}
.site-nav a:hover{color:var(--accent)}
.lang-switcher{display:flex;align-items:center;gap:3px;border:1px solid var(--line);
  padding:3px;background:var(--surface);white-space:nowrap}
.lang-option{display:inline-flex;align-items:center;padding:6px 7px;color:var(--muted);
  text-decoration:none;font-size:11.5px;font-weight:750;line-height:1}
.lang-option:hover{color:var(--accent)}
.lang-option.active{background:var(--ink);color:var(--surface);pointer-events:none}
h1{font-size:40px;line-height:1.24;letter-spacing:-1.4px;margin:12px 0 14px;
  word-break:normal;overflow-wrap:anywhere}
h2{font-size:25px;line-height:1.4;margin:48px 0 14px;padding-top:8px;letter-spacing:-.7px;
  word-break:normal;overflow-wrap:anywhere}
h3{font-size:19px;line-height:1.45;margin:30px 0 8px;letter-spacing:-.25px;
  word-break:normal;overflow-wrap:anywhere}
html:lang(ko) h1,html:lang(ko) h2,html:lang(ko) h3{word-break:keep-all}
html:lang(ja) h1,html:lang(ja) h2,html:lang(ja) h3{word-break:normal;line-break:strict}
.meta{color:var(--muted);font-size:13.5px;margin-bottom:10px}
.review{display:flex;flex-wrap:wrap;gap:5px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:11px 0;margin:0 0 32px}
.review b{color:var(--ink);font-weight:750}
p{margin:15px 0}
pre{background:var(--ink);color:#f9f5eb;border-radius:2px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.65}
code{font-family:ui-monospace,'SF Mono',Consolas,monospace;font-size:.9em;
  background:var(--code);padding:2px 6px;border-radius:3px;word-break:break-word}
pre code{background:none;padding:0;word-break:normal}
.tw{overflow-x:auto;margin:20px 0}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{border-bottom:1px solid var(--line);padding:11px 12px;text-align:left;vertical-align:top}
th{background:var(--code);font-size:14px}
ul,ol{padding-left:24px}
li{margin:7px 0}
a{color:var(--accent);text-underline-offset:3px;overflow-wrap:anywhere}
a:hover{text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,pre:focus-visible,.tw:focus-visible{
  outline:3px solid #e4a139;outline-offset:4px}
.sources{margin:52px 0 8px;border-left:4px solid var(--blue);background:rgba(255,253,248,.65);
  padding:18px 22px}
.sources h2{margin:0 0 9px;font-size:18px;padding:0}
.sources ul{margin:0;padding-left:20px}
.sources li{margin:7px 0;font-size:14.5px}
.related{margin:40px 0 8px;border-top:1px solid var(--line);padding-top:22px}
.related h2{font-size:17px;margin:0 0 8px;padding:0}
.related a{display:block;border-bottom:1px solid var(--line);padding:11px 2px;
  text-decoration:none;color:var(--ink);font-weight:700;font-size:15.5px}
.related a::after{content:'  →';color:var(--accent)}
.related a:hover{color:var(--accent)}
footer{border-top:1px solid var(--line);margin-top:72px;padding:26px 0 44px;
  font-size:13px;color:var(--muted)}
.hero{padding:38px 0 42px;border-bottom:1px solid var(--line);display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr);gap:56px;align-items:end}
.hero-kicker{color:var(--accent);font:800 13px/1.4 ui-monospace,'SF Mono',Consolas,monospace;
  letter-spacing:.4px;text-transform:uppercase;overflow-wrap:anywhere}
.hero h1{font-size:56px;line-height:1.08;letter-spacing:-2.3px;margin:12px 0 18px;max-width:720px}
.hero-lede{font-size:18px;color:var(--muted);margin:0;max-width:610px}
.hero-note{border-top:3px solid var(--accent);padding-top:15px;font-size:14px;color:var(--muted)}
.hero-note strong{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
.home-section{padding-top:58px;scroll-margin-top:76px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;
  border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:0}
.section-head h2{margin:0;padding:0;font-size:24px}
.section-head p{margin:0;color:var(--muted);font-size:14px;text-align:right}
.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-top:54px;min-width:0}
.tool-panel{min-width:0;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);padding:24px 22px 8px}
.tool-panel .section-head{display:block;border-bottom:2px solid var(--ink);padding-bottom:15px}
.tool-panel .section-head p{text-align:left;margin-top:5px;min-height:44px}
.guide-list{margin:0}
.guide-item{border-bottom:1px solid var(--line)}
.guide-item:last-child{border-bottom:0}
.guide-item a{display:block;color:var(--ink);text-decoration:none;padding:20px 1px 21px}
.guide-item a:hover .guide-title{color:var(--accent)}
.guide-cat{display:block;color:var(--accent);font-size:11.5px;font-weight:800;
  letter-spacing:.25px;margin-bottom:6px}
.guide-title{display:block;font-size:17px;font-weight:800;line-height:1.45;letter-spacing:-.25px;
  overflow-wrap:anywhere}
.guide-summary{display:block;color:var(--muted);font-size:14px;line-height:1.6;margin-top:7px;
  overflow-wrap:anywhere}
.wide-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:34px}
.wide-list .guide-item:nth-last-child(-n+2){border-bottom:0}
.empty-note{color:var(--muted);font-size:14px;padding:22px 0}
article>h1{margin-top:0}
article>p:first-of-type{font-size:18px;line-height:1.75}
@media(max-width:820px){
  body{font-size:16px;word-break:normal;overflow-x:hidden}
  header.site{position:static;margin-bottom:32px}
  header.site .site-shell{align-items:center;gap:10px}
  .site-nav{display:none}
  .header-actions{flex:1;min-width:0;justify-content:flex-end;gap:8px}
  .lang-switcher{width:100%;max-width:none;min-width:0;overflow-x:auto}
  .lang-option{padding:6px}
  .home-wrap,.site-shell,.wrap{padding-left:18px;padding-right:18px}
  h1{font-size:31px;letter-spacing:-.8px}
  h2{font-size:22px;margin-top:40px}
  .hero{display:block;padding:24px 0 32px}
  .hero h1{font-size:39px;letter-spacing:-1.4px}
  .hero-lede{font-size:16px}
  .hero-note{margin-top:28px}
  .tool-grid{grid-template-columns:minmax(0,1fr);gap:16px;padding-top:36px}
  .tool-panel{padding:21px 18px 5px}
  .tool-panel .section-head p{min-height:0}
  .home-section{padding-top:42px}
  .section-head{display:block}
  .section-head p{text-align:left;margin-top:6px}
  .wide-list{grid-template-columns:1fr}
  .wide-list .guide-item{border-bottom:1px solid var(--line)}
  .wide-list .guide-item:last-child{border-bottom:0}
  .review{display:block}
  .review span{display:block}
  pre{margin-left:-4px;margin-right:-4px;padding:16px}
}