:root{--bg:#0b1020;--surface:#151c34;--line:rgba(255,255,255,.1);--text:#eef1ff;--muted:#9aa3c7;--accent:#ffb547;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 'Pretendard','Inter',system-ui,-apple-system,'Segoe UI','Apple SD Gothic Neo','Malgun Gothic','Noto Sans JP','Noto Sans SC',sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 20px 64px}h1{font-size:1.8rem;margin:.2em 0}h2{font-size:1.1rem;margin-top:1.8em}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px}a{color:var(--accent)}.muted{color:var(--muted);font-size:.9rem}
.lang select{appearance:none;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font:inherit;font-weight:700}
section[lang]{display:none}section[lang].on{display:block}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:4px 20px 16px}
.biz-foot{margin-top:28px;color:var(--muted);font-size:.85rem;line-height:1.7;border-top:1px solid var(--line);padding-top:16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* Typesetting: keep Korean words whole, phrase-aware Japanese breaks,
   no orphans in paragraphs (pretty) and even short blocks (balance). */
html { overflow-wrap: break-word; }
:lang(ko) { word-break: keep-all; }
:lang(ja) { word-break: auto-phrase; }
p, li, dd, dt, label, summary { text-wrap: pretty; }
h1, h2, h3, h4, .kicker, .lead, .sub, small, figcaption, .modal-desc, .step p, .modal-card h3, .btn { text-wrap: balance; }