.okf{min-height:100vh;background:var(--app-canvas);min-height:100dvh;color:var(--app-text);font-family:var(--app-font)}.okf__hero{text-align:center;max-width:760px;margin:0 auto;padding:clamp(2.5rem,6vw,4.5rem) clamp(1.25rem,5vw,3rem) clamp(2rem,5vw,3rem)}.okf__eyebrow{letter-spacing:-.01em;color:var(--app-text-secondary);margin:0 0 1rem;font-size:13px;font-weight:600}.okf__eyebrow--accent{color:var(--app-action)}.okf__title{font-family:var(--app-font);letter-spacing:-.022em;color:var(--app-text);margin:0 0 1.1rem;font-size:clamp(1.9rem,4.6vw,3rem);font-weight:600;line-height:1.08}.okf__lede{color:var(--app-text-secondary);max-width:62ch;margin:0 auto 1.6rem;font-size:clamp(1rem,1.6vw,1.12rem);line-height:1.65}.okf__body{max-width:820px;margin:0 auto;padding:0 clamp(1.25rem,5vw,3rem)}.okf__section{border-top:1px solid var(--app-hairline-soft);padding:clamp(2rem,5vw,3.2rem) 0}.okf__h2{font-family:var(--app-font);letter-spacing:-.018em;color:var(--app-text);margin:.4rem 0 .9rem;font-size:clamp(1.35rem,2.6vw,1.85rem);font-weight:600;line-height:1.18}.okf__p{color:var(--app-text-secondary);max-width:64ch;margin:0 0 1rem;font-size:1rem;line-height:1.65}.okf__note{color:var(--app-text-secondary);margin:.8rem 0 0;font-size:.85rem;line-height:1.55}.okf__inline{font-family:var(--app-font-mono);background:var(--app-canvas);color:var(--app-text);overflow-wrap:anywhere;word-break:break-word;border-radius:6px;padding:.1em .4em;font-size:.86em}.okf__split{grid-template-columns:1fr 1fr;gap:clamp(.9rem,2.4vw,1.3rem);display:grid}.okf__splitCard{background:var(--app-surface);border:1px solid var(--app-hairline-soft);border-radius:16px;padding:1.3rem 1.3rem 1.4rem}.okf__splitCard--is{border-color:#0064d247}.okf__splitTitle{font-family:var(--app-font);letter-spacing:-.01em;color:var(--app-text);margin:0 0 .5rem;font-size:1.1rem;font-weight:600}.okf__splitCard--is .okf__splitTitle{color:var(--app-action)}.okf__splitList{flex-direction:column;gap:.6rem;margin:0;padding:0;list-style:none;display:flex}.okf__splitList li{color:var(--app-text-secondary);padding-left:1.1rem;font-size:.95rem;line-height:1.6;position:relative}.okf__splitList li:before{content:"—";color:var(--app-text-secondary);position:absolute;left:0}.okf__splitCard--is .okf__splitList li:before{color:var(--app-action)}.okf__cards{grid-template-columns:repeat(3,1fr);gap:clamp(.8rem,2vw,1.1rem);margin:0 0 1rem;padding:0;list-style:none;display:grid}.okf__card{background:var(--app-surface);border:1px solid var(--app-hairline-soft);border-radius:16px;padding:1.2rem 1.2rem 1.3rem}.okf__cardKicker{letter-spacing:-.01em;color:var(--app-action);margin:0;font-size:13px;font-weight:600}.okf__cardTitle{font-family:var(--app-font);letter-spacing:-.01em;color:var(--app-text);margin:.5rem 0 .4rem;font-size:1.05rem;font-weight:600}.okf__cardBody{color:var(--app-text-secondary);margin:0;font-size:.92rem;line-height:1.55}.okf__code{border:1px solid var(--app-hairline-soft);background:var(--app-surface);border-radius:14px;margin:0 0 1rem;overflow:hidden}.okf__codeBar{background:var(--app-surface);border-bottom:1px solid var(--app-hairline-soft);justify-content:space-between;align-items:center;gap:1rem;padding:.5rem .9rem;display:flex}.okf__codeLabel{letter-spacing:.04em;color:var(--app-text-secondary);font-size:13px;font-weight:600}.okf__codeCopy{font-family:var(--app-font);letter-spacing:.02em;color:var(--app-action);background:var(--app-canvas);cursor:pointer;border:1px solid #0064d240;border-radius:999px;padding:.25rem .7rem;font-size:13px;font-weight:600;transition:background .14s}.okf__codeCopy:hover{background:#0064d233}.okf__codePre{font-family:var(--app-font-mono);color:var(--app-text-secondary);white-space:pre;-moz-tab-size:2;tab-size:2;margin:0;padding:1rem 1.1rem;font-size:.84rem;line-height:1.6;overflow-x:auto}.okf__faq{flex-direction:column;gap:.7rem;display:flex}.okf__faqItem{background:var(--app-surface);border:1px solid var(--app-hairline-soft);border-radius:14px;padding:1rem 1.1rem}.okf__faqQ{font-family:var(--app-font);letter-spacing:-.01em;color:var(--app-text);margin:0 0 .4rem;font-size:1.02rem;font-weight:600}.okf__faqA{color:var(--app-text-secondary);margin:0;font-size:.95rem;line-height:1.6}.okf__check{border-top:1px solid var(--app-hairline-soft);margin:clamp(1rem,3vw,2rem) 0 0;padding:clamp(2rem,5vw,3rem) 0 0}.okf__checkInner{grid-template-columns:1fr 1fr;align-items:center;gap:clamp(1.5rem,4vw,3rem);display:grid}.okf__checkCopy{max-width:40ch}.okf__checkTitle{font-family:var(--app-font);letter-spacing:-.02em;color:var(--app-text);margin:0 0 .9rem;font-size:clamp(1.4rem,2.6vw,1.9rem);font-weight:600;line-height:1.15}.okf__checkBody{color:var(--app-text-secondary);margin:0;font-size:1rem;line-height:1.6}.okf__checkForm{background:var(--app-surface);border:1px solid var(--app-hairline-soft);box-shadow:none;border-radius:18px;flex-direction:column;gap:.85rem;padding:clamp(1.3rem,2.6vw,1.8rem);display:flex}.okf__checkField{flex-direction:column;gap:.45rem;display:flex}.okf__checkLabel{letter-spacing:.04em;color:var(--app-text-secondary);font-size:.78rem;font-weight:600}.okf__checkField input{background:var(--app-hairline-soft);border:1px solid var(--app-hairline-soft);width:100%;color:var(--app-text);border-radius:12px;outline:none;padding:.85rem 1rem;font-family:inherit;font-size:1rem;transition:border-color .16s cubic-bezier(.22,1,.36,1),background .16s cubic-bezier(.22,1,.36,1)}.okf__checkField input:focus{border-color:var(--app-action);background:var(--app-hairline-soft)}.okf__checkBtn{background:var(--app-action);color:#fff;font:inherit;cursor:pointer;border:none;border-radius:999px;justify-content:center;align-items:center;gap:.5rem;padding:.9rem 1.3rem;font-size:.95rem;font-weight:600;transition:transform .16s cubic-bezier(.22,1,.36,1),background .16s cubic-bezier(.22,1,.36,1);display:inline-flex;box-shadow:0 18px 40px -18px #0064d2b3}.okf__checkBtn:hover{opacity:.88;transform:translateY(-1px)}.okf__checkNote{color:var(--app-text-secondary);margin:0;font-size:.78rem}@media (max-width:720px){.okf__split,.okf__cards,.okf__checkInner{grid-template-columns:1fr}.okf__checkCopy{max-width:none}}@media (max-width:480px){.okf__title{font-size:1.7rem}.okf__lede{font-size:.98rem}.okf__codePre{font-size:.78rem}}