:root{color-scheme:light dark;--color-canvas: #ffffff;--color-paper: #f8fafc;--color-tint: #f1f4f8;--color-line: #dde3eb;--color-line-strong: #0b0d12;--color-ink: #0b0d12;--color-text: #1f2430;--color-muted: #5b6472;--color-accent: #1e3a8a;--color-accent-tint: #e3e9f6;--color-on-accent: #ffffff;--color-focus: #1e3a8a;--flow-font-sans: "Pretendard Variable", Pretendard, system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;--flow-font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;--flow-radius: 2px;--flow-gutter: clamp(16px, 4vw, 40px)}@media screen and (prefers-color-scheme: dark){:root:not(.light){--color-canvas: #0b0d12;--color-paper: #12151c;--color-tint: #1a1f29;--color-line: #2a303c;--color-line-strong: #f3f5f8;--color-ink: #f3f5f8;--color-text: #d5dae2;--color-muted: #9aa3b0;--color-accent: #8fb3ff;--color-accent-tint: #1c2742;--color-on-accent: #0b0d12;--color-focus: #8fb3ff}}:root.dark{color-scheme:dark;--color-canvas: #0b0d12;--color-paper: #12151c;--color-tint: #1a1f29;--color-line: #2a303c;--color-line-strong: #f3f5f8;--color-ink: #f3f5f8;--color-text: #d5dae2;--color-muted: #9aa3b0;--color-accent: #8fb3ff;--color-accent-tint: #1c2742;--color-on-accent: #0b0d12;--color-focus: #8fb3ff}:root.light{color-scheme:light}*{box-sizing:border-box}html,body{margin:0;background:var(--color-canvas)}.landing{min-height:100vh;color:var(--color-text);background:var(--color-canvas);font-family:var(--flow-font-sans);line-height:1.65;-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:anywhere}.landing a{color:var(--color-accent);text-decoration:none}.landing a:hover{text-decoration:underline}.landing :focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}.container{max-width:1080px;margin:0 auto;padding:0 var(--flow-gutter)}.site-head,.doc-header{border-bottom:1px solid var(--color-line)}.head-inner,.doc-head-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px}.brand,.doc-home,.footer-logo{display:inline-flex;align-items:center;gap:8px}.flow-mark{flex:none;border-radius:2px}.brand,.doc-home{font-weight:700;color:var(--color-ink)!important;letter-spacing:-.2px}.head-nav{display:flex;align-items:center;gap:20px;font-size:14px}.theme-btn{font:inherit;font-size:13px;cursor:pointer;color:var(--color-ink);background:transparent;border:1px solid var(--color-line);border-radius:var(--flow-radius);padding:4px 10px}.theme-btn:hover{border-color:var(--color-line-strong)}.hero{padding-top:clamp(48px,10vw,112px);padding-bottom:clamp(40px,8vw,88px)}.eyebrow{font-family:var(--flow-font-mono);font-size:12px;letter-spacing:.12em;color:var(--color-muted);margin-bottom:16px}.hero h1{margin:0 0 20px;color:var(--color-ink);font-size:clamp(2rem,4.5vw,3.5rem);line-height:1.15;letter-spacing:-.02em;font-weight:800}.lead{max-width:56ch;margin:0 0 28px;font-size:18px;color:var(--color-text)}.hero-cta{display:flex;flex-wrap:wrap;gap:12px}.hero-note{margin:16px 0 0;font-size:14px;color:var(--color-muted)}.btn{display:inline-block;padding:11px 22px;font-size:15px;font-weight:600;color:var(--color-ink)!important;background:transparent;text-decoration:none!important;border:1px solid var(--color-line-strong);border-radius:var(--flow-radius)}.btn:hover{background:var(--color-tint)}.btn-primary{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-on-accent)!important}.btn-primary:hover{background:var(--color-accent);opacity:.9}.section{padding-top:clamp(32px,6vw,56px);padding-bottom:clamp(32px,6vw,56px);border-top:1px solid var(--color-line)}.section h2{margin:0 0 8px;color:var(--color-ink);font-size:clamp(1.5rem,3vw,2rem);letter-spacing:-.01em}.sub{margin:0 0 24px;color:var(--color-muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:24px;border-top:1px solid var(--color-line);border-left:1px solid var(--color-line)}.cell{padding:20px;border-right:1px solid var(--color-line);border-bottom:1px solid var(--color-line)}.cell .code{font-family:var(--flow-font-mono);font-size:12px;color:var(--color-muted)}.cell h3{margin:6px 0 8px;color:var(--color-ink);font-size:17px}.cell p{margin:0;font-size:14.5px}.rows{list-style:none;margin:24px 0 0;padding:0;border-top:1px solid var(--color-line)}.rows li{border-bottom:1px solid var(--color-line)}.row{display:grid;grid-template-columns:220px 1fr auto;gap:16px;align-items:baseline;padding:16px 4px}.landing a.row{color:var(--color-text)}.landing a.row:hover{background:var(--color-paper);text-decoration:none}.row-title{color:var(--color-ink);font-weight:700}.row-desc{font-size:14.5px;color:var(--color-muted)}.row-go{color:var(--color-accent)}.inquiry{font-size:16px}.footer{border-top:1px solid var(--color-line);background:var(--color-paper);padding:32px 0;font-size:13px;color:var(--color-muted)}.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;margin-bottom:16px}.footer-logo{font-weight:700;color:var(--color-ink)}.footer-tagline{margin:2px 0 0}.footer-links{display:flex;gap:16px}.footer-biz{display:flex;flex-wrap:wrap;gap:4px 16px}.footer-biz b{color:var(--color-ink)}.footer-copy{margin-top:12px}.doc-header{padding:0}.doc{padding-top:48px;padding-bottom:72px;max-width:760px}.doc h1{color:var(--color-ink);font-size:30px;font-weight:800;letter-spacing:-.02em;margin:0 0 8px}.doc h2{color:var(--color-ink);font-size:17px;font-weight:700;margin:32px 0 10px}.doc p,.doc li{color:var(--color-text);font-size:15px}.doc ul{padding-left:20px}.doc li{margin:4px 0}.doc-meta{color:var(--color-muted);font-size:13px;margin:0 0 18px}.doc-note{background:var(--color-paper);border:1px solid var(--color-line);border-radius:var(--flow-radius);padding:12px 14px;font-size:13px;color:var(--color-muted)}@media (max-width: 800px){.grid{grid-template-columns:1fr 1fr}.row{grid-template-columns:1fr auto}.row-desc{grid-column:1 / 2}.row-go{grid-row:1;grid-column:2}}@media (max-width: 520px){.grid{grid-template-columns:1fr}.head-nav{gap:12px}.lead{font-size:16px}}.footer-madeby{margin-top:6px;font-size:12px}.footer-madeby a{color:var(--color-muted)}