*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;word-break:keep-all;overflow-wrap:anywhere}
img,svg{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.post-body h2{margin:2em 0 .5em}
.post-body h3{margin:1.4em 0 .4em}
.post-body p,.post-body ul,.post-body ol,.post-body blockquote,.post-body table{margin:0 0 1.1em}
.post-body table{border-collapse:collapse;width:100%}
.post-body th,.post-body td{padding:8px 10px;border:1px solid var(--line);text-align:left;vertical-align:top}
.post-body figure{margin:1.6em 0}
.post-body figure img,.post-hero img{width:100%;height:auto;border-radius:6px}
.post-body figcaption,.post-hero figcaption{font-size:13px;opacity:.7;margin-top:6px}
.post-body .tags{font-size:14px;opacity:.75}
.post-body .backlinks{font-size:14px;margin-top:1.6em}
.post-body .backlinks a{margin-right:.3em}
.post-sub{font-size:1.1em;opacity:.8;margin:0 0 1em}
.related-links{max-width:100%;margin:28px 0 0;font-size:15px}
.related-links h2{font-size:15px;margin:0 0 6px}
.related-links a{display:inline-block;margin-right:12px}
.related-articles{margin-top:40px}
.related-articles h2{font-size:17px}
.related-articles li{padding:6px 0}
.plist{list-style:none;margin:0;padding:0}
.pi{display:block;text-decoration:none}
.sr{position:absolute;left:-9999px}
.policy{max-width:1100px;margin:0 auto;padding:18px 20px 30px;font-size:13px;display:flex;gap:14px;flex-wrap:wrap;justify-content:center;opacity:.75}
.policy a{text-decoration:none}

:root{--bg:#F4F7FA;--panel:#fff;--ink:#12202B;--mute:#566675;--line:#D9E1E8;--soft:#E3EEFE;--accent:#1F6FEB}
body.d-a{background:var(--bg);color:var(--ink);font:400 16px/1.75 'IBM Plex Sans KR',system-ui,sans-serif}
.d-a .wrap{display:grid;grid-template-columns:252px minmax(0,1fr);min-height:100vh}
.d-a .rail{position:sticky;top:0;height:100vh;overflow:auto;padding:36px 24px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:30px}
.d-a .brand{font-size:21px;font-weight:700;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.d-a .brand small{display:block;font-size:13px;font-weight:400;color:var(--mute);margin-top:6px;line-height:1.5;letter-spacing:0}
.d-a .nav{display:flex;flex-direction:column;gap:2px}
.d-a .nav h2{font-size:13px;font-weight:500;color:var(--mute);margin:0 0 6px 10px}
.d-a .nav a{padding:8px 10px;border-radius:6px;text-decoration:none;font-size:15px;color:var(--ink)}
.d-a .nav a:hover,.d-a .nav a[aria-current]{background:var(--soft);color:var(--accent)}
.d-a .about{font-size:13px;color:var(--mute);line-height:1.6;margin-top:auto}
.d-a main{padding:56px clamp(20px,5vw,72px) 72px;max-width:900px;width:100%}
.d-a .lead{padding-bottom:36px;border-bottom:2px solid var(--ink);margin-bottom:8px}
.d-a .lead .tag{font-size:14px;color:var(--accent);font-weight:500;margin:0 0 10px}
.d-a .lead h1{font-size:clamp(28px,4vw,40px);line-height:1.3;letter-spacing:-.03em;margin:0 0 14px;font-weight:700}
.d-a .lead h1 a{text-decoration:none}
.d-a .lead p{margin:0 0 16px;max-width:60ch;color:var(--mute)}
.d-a .lead .go{font-weight:500;color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}
.d-a .sec-h{font-size:15px;font-weight:500;color:var(--mute);margin:36px 0 4px}
.d-a .pi{display:grid;grid-template-columns:96px 1fr;gap:2px 24px;padding:18px 0;border-top:1px solid var(--line)}
.d-a .pi:hover .pi-title{color:var(--accent)}
.d-a .pi-date{grid-row:1/3;font-size:14px;color:var(--mute);font-variant-numeric:tabular-nums;padding-top:3px}
.d-a .pi-cat{order:3;font-size:13px;color:var(--mute)}
.d-a .pi-title{font-size:18px;font-weight:500;line-height:1.5}
.d-a .pi-sum{font-size:15px;color:var(--mute);line-height:1.6}
.d-a .arch-title{font-size:30px;letter-spacing:-.02em;margin:0 0 6px}
.d-a .arch-desc{color:var(--mute);margin:0 0 20px}
.d-a .pager{display:flex;gap:6px;margin-top:28px}
.d-a .pager a{padding:6px 12px;border:1px solid var(--line);border-radius:6px;text-decoration:none;background:var(--panel)}
.d-a .pager a[aria-current]{background:var(--ink);color:#fff;border-color:var(--ink)}
.d-a .crumb{font-size:13px;color:var(--mute);display:flex;gap:8px;margin-bottom:22px;flex-wrap:wrap}
.d-a .crumb a{text-decoration:none}
.d-a .post-cat{font-size:14px;color:var(--accent);font-weight:500;margin:0 0 8px}
.d-a .post h1{font-size:clamp(26px,3.6vw,36px);line-height:1.35;letter-spacing:-.03em;margin:0 0 12px}
.d-a .post-meta{font-size:14px;color:var(--mute);margin:0 0 30px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.d-a .post-body{max-width:66ch}
.d-a .post-body h2{font-size:21px;letter-spacing:-.02em;padding-left:12px;border-left:3px solid var(--accent);line-height:1.4}
.d-a .post-body blockquote{margin-left:0;padding:12px 18px;background:var(--soft);border-radius:6px}
.d-a .post-body th{background:var(--soft)}
.d-a .post-note{margin-top:36px;padding:16px 18px;background:var(--panel);border:1px solid var(--line);border-radius:6px;font-size:14px;color:var(--mute);max-width:66ch}
.d-a .related{margin-top:56px}
.d-a .related h2{font-size:15px;font-weight:500;color:var(--mute)}
.d-a .foot{margin-top:64px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--mute)}
@media(max-width:820px){.d-a .wrap{grid-template-columns:1fr}.d-a .rail{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:22px 20px;gap:16px}.d-a .nav{flex-direction:row;flex-wrap:wrap}.d-a .nav h2,.d-a .about{display:none}.d-a .pi{grid-template-columns:1fr}.d-a .pi-date{grid-row:auto}}

:root{--accent:#1F6FEB;--soft:color-mix(in srgb, #1F6FEB 12%, #fff);--bg:color-mix(in srgb, #1F6FEB 5%, #f7f9fb)}