.p-fbusan{--paper:#f7f8f6;--ink:#1a2114;--sub:#5c6552;--line:#e2e6da;--card:#fff;--teal:#0e6b6e;--teal-d:#0a4a4d;--orange:#df5a12;--duck:#e8a300;--duck-w:#fdf3d6;--wash:#f3f4ea;--mono:ui-monospace,"SF Mono",Consolas,monospace;--sans:system-ui,-apple-system,"Segoe UI","Malgun Gothic","Apple SD Gothic Neo",sans-serif}@media(prefers-color-scheme:dark){.p-fbusan{--paper:#0f120b;--ink:#e9ecdf;--sub:#9aa48a;--line:#28301f;--card:#161a10;--teal:#5fc7c9;--teal-d:#8fd8d9;--orange:#ff8a4c;--duck:#f2c94c;--duck-w:#2a2410;--wash:#141810}}:root[data-theme=dark] .p-fbusan{--paper:#0f120b;--ink:#e9ecdf;--sub:#9aa48a;--line:#28301f;--card:#161a10;--teal:#5fc7c9;--teal-d:#8fd8d9;--orange:#ff8a4c;--duck:#f2c94c;--duck-w:#2a2410;--wash:#141810}:root[data-theme=light] .p-fbusan{--paper:#f7f8f6;--ink:#1a2114;--sub:#5c6552;--line:#e2e6da;--card:#fff;--teal:#0e6b6e;--teal-d:#0a4a4d;--orange:#df5a12;--duck:#e8a300;--duck-w:#fdf3d6;--wash:#f3f4ea}.p-fbusan *{box-sizing:border-box}.p-fbusan{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased}.p-fbusan .wrap{max-width:820px;margin:0 auto;padding:0 18px}.p-fbusan a{color:var(--teal)}.p-fbusan .aibadge{position:absolute;left:10px;top:10px;z-index:2;background:rgba(15,18,11,.82);color:#f0f3e6;font-size:11px;font-weight:700;padding:3px 9px;border-radius:7px;border:1px solid rgba(255,255,255,.18)}.p-fbusan .hero{position:relative;background:#0a1210}.p-fbusan .hero .media{position:relative;aspect-ratio:16/9;overflow:hidden}.p-fbusan .hero img{width:100%;height:100%;object-fit:cover;display:block}.p-fbusan .hero .scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,12,6,.12),rgba(8,12,6,.55) 58%,rgba(8,12,6,.93))}.p-fbusan .hero .cap{position:absolute;left:0;right:0;bottom:0;z-index:2}.p-fbusan .hero .cap .in{max-width:820px;margin:0 auto;padding:0 18px 22px}.p-fbusan .eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--duck);font-weight:700}.p-fbusan h1{font-size:clamp(24px,5.2vw,40px);font-weight:800;letter-spacing:-.02em;margin:8px 0;color:#fff;line-height:1.1;text-wrap:balance}.p-fbusan h1 .d{color:#ffcf4a}.p-fbusan .lead{color:#e6ecda;font-size:15px;margin:0 0 12px;max-width:58ch}.p-fbusan .cta{display:flex;gap:9px;flex-wrap:wrap}.p-fbusan .cta a{font-size:13.5px;font-weight:700;border-radius:10px;padding:9px 15px;text-decoration:none}.p-fbusan .cta .p{background:var(--duck);color:#241c00;border:1px solid var(--duck)}.p-fbusan .cta .s{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}.p-fbusan .oneliner{background:linear-gradient(120deg,var(--teal-d),var(--teal));color:#eafcfa;padding:18px;border-radius:14px;margin:20px 0 6px;font-size:clamp(15px,2.2vw,19px);font-weight:700;line-height:1.5}.p-fbusan .oneliner .d{color:#ffd76b}.p-fbusan .steps{padding:24px 0 6px}.p-fbusan .step{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:20px}@media(min-width:640px){.p-fbusan .step{grid-template-columns:1.1fr .9fr;align-items:center}.p-fbusan .step.rev .txt{order:2}}.p-fbusan .frame{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--card)}.p-fbusan .frame img{width:100%;display:block;aspect-ratio:9/16;object-fit:cover;background:#0a1210;max-height:520px}.p-fbusan .txt .sn{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--orange);font-weight:800}.p-fbusan .txt h2{font-size:clamp(19px,3.2vw,24px);font-weight:800;margin:5px 0;letter-spacing:-.01em}.p-fbusan .txt p{color:var(--sub);font-size:14.5px;margin:0;max-width:52ch}.p-fbusan .txt .tag{display:inline-block;font-family:var(--mono);font-size:11px;color:var(--teal-d);background:var(--duck-w);border:1px solid var(--line);border-radius:6px;padding:2px 8px;margin-top:8px}.p-fbusan .twotrack{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin:6px 0}.p-fbusan .twotrack h3{margin:0 0 8px;font-size:15px;font-weight:800}.p-fbusan .twotrack .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:560px){.p-fbusan .twotrack .row{grid-template-columns:1fr}}.p-fbusan .twotrack .c{border-top:3px solid var(--duck);padding-top:8px}.p-fbusan .twotrack .c.eng{border-color:var(--teal)}.p-fbusan .twotrack .c b{font-size:13.5px}.p-fbusan .twotrack .c p{font-size:12.5px;color:var(--sub);margin:3px 0 0}.p-fbusan .foot{padding:24px 0 52px;font-size:12.5px;color:var(--sub);line-height:1.7}.p-fbusan .foot b{color:var(--ink)}.p-fbusan #themeToggle{position:fixed;right:16px;bottom:16px;z-index:99;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;font-size:18px;box-shadow:0 4px 16px rgba(0,0,0,.18)}@media (max-width:599px),(pointer:coarse){.p-fbusan .btn,.p-fbusan .chip,.p-fbusan button,.p-fbusan summary{min-height:44px}.p-fbusan .back,.p-fbusan .hamb,.p-fbusan .nav a,.p-fbusan .tabs a,.p-fbusan nav a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px}.p-fbusan .links a,.p-fbusan li>a{display:inline-flex;align-items:center;min-height:44px}.p-fbusan input[type=range]{height:44px}.p-fbusan input[type=checkbox],.p-fbusan input[type=radio]{width:22px;height:22px}}@media (max-width:599px){.p-fbusan *{min-width:0}.p-fbusan table{display:block;overflow-x:auto;max-width:100%;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}.p-fbusan table::-webkit-scrollbar{height:4px}.p-fbusan table::-webkit-scrollbar-track{background:transparent}.p-fbusan table::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:999px}.p-fbusan table td,.p-fbusan table th{min-width:5.5em}.p-fbusan .cap,.p-fbusan .lead small,.p-fbusan figcaption{font-size:12px}}