.fk-story{--fw-dark:#0c1116;--fw-orange:#ff9966;--fw-teal:#70dcc2;--fw-muted:#a8b5be;--fk-line:#ccc8be;background:#f7f5f0;color:#191b22;overflow:hidden;overflow-wrap:anywhere}.fk-story *{box-sizing:border-box}.fk-story a{color:inherit;text-underline-offset:4px}.fk-story button{font:inherit;cursor:pointer}.fk-story button:disabled{cursor:default;opacity:.6}.fw-top{gap:14px;padding:20px max(24px,calc((100vw - 1280px)/2));background:var(--fw-dark);color:#a8b5be;font-size:12px}.fw-top,.fw-top a{display:flex;align-items:center}.fw-top a{min-height:32px}.fw-workshop{background:var(--fw-dark);color:#f5f1e8;padding:12px max(24px,calc((100vw - 1280px)/2)) 36px;display:grid;grid-template-columns:.82fr 1.18fr;gap:38px;align-items:start;scroll-margin-top:90px}.fw-kicker{font:600 11px/1.6 sans-serif;letter-spacing:.12em;color:var(--fw-orange);margin:0 0 18px}.fw-intro h1{font-family:Songti SC,STSong,serif;font-size:clamp(44px,5vw,72px);line-height:1.13;letter-spacing:-.04em;font-weight:500;margin:0 0 20px}.fw-intro h1 em{font-style:normal;color:var(--fw-orange)}.fw-deck{font-size:16px;line-height:1.9;color:#c4cdd2;max-width:520px;margin:0}.fw-intro-actions{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0 24px}.fw-intro-actions a{display:inline-flex;align-items:center;min-height:44px;font-size:13px;text-decoration:none;border-bottom:1px solid #54716e;color:var(--fw-teal)}.fw-current{border-top:1px solid #35414b;padding-top:18px}.fw-current>span{font-size:11px;color:var(--fw-orange);letter-spacing:.06em}.fw-current h2{font-size:21px;line-height:1.5;margin:10px 0}.fw-current p{font-size:15px;line-height:1.85;color:#bbc7ce;margin:0}.fw-machine{min-width:0;border:1px solid #34424d;background:var(--fw-dark)}.fw-machine-bar{display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid #34424d;gap:8px;font-size:10px;letter-spacing:.05em;color:#adbbc4;min-height:44px}.fw-machine-bar button{color:#e3ebe9;border:0;background:transparent;min-height:44px;padding:0 8px;font-size:12px}.fw-stage{height:420px;position:relative;touch-action:pan-y;overflow:hidden}.fw-stage canvas{display:block;width:100%;height:100%;touch-action:pan-y}.fw-stage-tag{position:absolute;bottom:10px;left:14px;font-size:10px;color:#879aa7;pointer-events:none}.fw-loading{position:absolute;inset:0;display:grid;place-items:center;font-size:13px;color:#a8b5be}.fw-scene-caption{display:flex;gap:16px;align-items:center;flex-wrap:wrap;padding:12px 14px;font-size:10px;border-top:1px solid #26343d;color:#bdc9cf}.fw-scene-caption span{display:inline-flex;gap:5px;align-items:center}.fw-scene-caption span:last-child{margin-left:auto;color:#98a9b4}.fw-scene-caption i{width:6px;height:6px;background:var(--fw-orange)}.fw-scene-caption span:nth-child(2) i{background:var(--fw-teal)}.fw-chapters{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #34424d}.fw-chapters button{border:0;border-right:1px solid #34424d;background:transparent;color:#becbd2;text-align:left;padding:12px;font-size:12px;line-height:1.5;min-height:64px}.fw-chapters button:last-child{border-right:0}.fw-chapters small{display:block;font-size:10px;color:#8fa2b0;margin-bottom:4px}.fw-chapters button[aria-pressed=true]{background:#ff9966;color:#151b20}.fw-chapters button[aria-pressed=true] small{color:#68361d}.fw-explain{padding:14px 16px;border-top:1px solid #34424d}.fw-explain p{font-size:13px;line-height:1.8;color:#bdcbd3;margin:8px 0}.fw-explain strong{color:#e7eeef}.fw-explain .fw-hint{font-size:11px;color:#8fa2b0;margin-top:10px}.fw-switch{display:flex;gap:6px;flex-wrap:wrap}.fw-switch button{border:1px solid #4d616d;color:#c4d0d6;background:transparent;padding:8px 12px;min-height:44px;font-size:12px}.fw-switch button[aria-pressed=true]{background:var(--fw-teal);color:#09201a;border-color:var(--fw-teal)}.fw-fallback{height:100%;padding:36px 24px;display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.fw-fallback span{border:1px solid #648c84;color:#70dcc2;padding:18px 12px}.fw-fallback b{font-size:12px;color:#ff9966}.fw-fallback p{width:100%;color:#a8b5be;font-size:13px;text-align:center;line-height:1.8}.fw-answer{background:#18242b;color:#d2dedf;display:flex;gap:16px;flex-wrap:wrap;align-items:center;padding:18px max(24px,calc((100vw - 1280px)/2));font-size:12px}.fw-answer strong{margin-right:auto}.fw-answer b,.fw-answer strong{color:var(--fw-orange)}.fk-prose{font-size:18px;line-height:1.95;padding-top:28px}.fk-prose>h2,.fk-prose>ol,.fk-prose>p{max-width:760px;margin-left:auto;margin-right:auto}.fk-prose>p{margin-top:20px;margin-bottom:20px}.fk-prose>h2{font-size:29px;line-height:1.5;font-weight:600;margin-top:44px;margin-bottom:18px;letter-spacing:-.025em;scroll-margin-top:100px}.fk-prose strong{font-weight:650}.fk-prose a{color:#145cf3;text-decoration:underline}.fk-prose ol{padding-left:1.4em}.fk-prose li{padding-left:4px;margin:12px 0}.fk-video{max-width:1180px;margin:36px auto 48px;padding:32px 0;border-block:1px solid var(--fk-line);display:grid;grid-template-columns:.55fr 1fr;gap:40px;align-items:center;scroll-margin-top:100px}.fk-video-intro h2{font-family:Songti SC,serif;font-size:44px;line-height:1.25;margin:10px 0 18px}.fk-video-intro p:last-child{font-size:16px;line-height:1.9;color:#686861}.fk-video-intro .fw-kicker{color:#9a4d25}.fk-video-player{min-width:0}.fk-video video{display:block;width:100%;aspect-ratio:16/9;background:#101010;border-radius:2px}.fk-note,.fk-video figcaption{font-size:13px!important;line-height:1.8!important;color:#686861;margin:12px 0!important}.fk-video figcaption a{margin-left:8px;display:inline-block;min-height:32px}.fk-video details{font-size:14px;border-bottom:1px solid var(--fk-line)}.fk-video summary{min-height:44px;cursor:pointer;padding:8px 0}.fk-video details p{margin-top:0}.fk-experiment{max-width:900px;margin:36px auto;padding:26px 30px;border:1px solid #ccc8be;background:#ebe8e1;scroll-margin-top:100px}.fk-experiment h2{margin:8px 0 12px;font-size:25px;line-height:1.5}.fk-meta{font-size:12px!important;line-height:1.7!important;color:#686861}.fk-sliders{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:20px 0}.fk-sliders label{font-size:15px;display:block}.fk-sliders strong{float:right;color:#145cf3}.fk-sliders input{display:block;accent-color:#145cf3;width:100%;height:44px;cursor:pointer}.fk-experiment button{min-height:44px;border:1px solid #191b22;padding:8px 16px;border-radius:2px;font-size:15px;cursor:pointer}.fk-experiment button:hover{background:#ddd9d0}.fk-canvas{width:100%;min-height:220px;background:#ebe8e1}.fk-canvas canvas{display:block;max-width:100%}.fk-bar-row{display:grid;grid-template-columns:56px 1fr 76px;gap:10px;align-items:center;font-size:13px;margin:14px 0;white-space:nowrap}.fk-bar-row>span:last-child{text-align:right;font-variant-numeric:tabular-nums}.fk-bar{display:flex;height:16px;background:#d5d2ca}.fk-bar i{background:#145cf3}.fk-bar b{background:#686861}.fk-result{font-size:20px;line-height:1.7!important}.fk-result strong{color:#145cf3}.fk-end{max-width:1180px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid var(--fk-line);margin:40px auto 0;padding:20px 0 40px;font-size:14px;color:#686861}.fk-end,.fk-end a{align-items:center}.fk-end a{display:inline-flex;min-height:44px}.fk-story :focus-visible{outline:3px solid #145cf3;outline-offset:4px}.fw-workshop :focus-visible{outline-color:#70dcc2}@media(min-width:1550px){.fw-stage{height:470px}}@media(max-width:1250px){.fk-end,.fk-video{margin-left:24px;margin-right:24px}.fw-workshop{gap:24px;grid-template-columns:.8fr 1.2fr}.fw-intro h1{font-size:56px}.fw-stage{height:400px}}@media(max-width:900px){.fw-workshop{grid-template-columns:1fr}.fw-intro{display:grid;grid-template-columns:1fr 1fr;column-gap:28px}.fw-intro .fw-kicker,.fw-intro-actions{grid-column:1/-1}.fw-intro h1{grid-row:2/5}.fw-current{grid-column:2;grid-row:3/5;margin-top:18px}.fw-intro-actions{grid-row:5}.fw-intro h1{font-size:60px}.fw-stage{height:400px}.fk-prose>h2,.fk-prose>ol,.fk-prose>p{margin-left:28px;margin-right:28px;max-width:none}.fk-video{gap:24px}.fk-video-intro h2{font-size:36px}.fk-experiment{margin-left:24px;margin-right:24px}}@media(max-width:600px){.fw-top{padding:14px 20px}.fw-workshop{padding:12px 20px 24px;gap:20px}.fw-intro{display:block}.fw-intro h1{font-size:48px}.fw-intro h1 br:nth-of-type(2){display:none}.fw-deck{font-size:15px}.fw-current{margin-top:0;padding-top:14px}.fw-current h2{font-size:19px}.fw-current p{font-size:14px}.fw-intro-actions{margin:16px 0}.fw-stage{height:330px}.fw-machine-bar{font-size:9px;padding:0 8px}.fw-machine-bar button{font-size:11px}.fw-chapters button{padding:10px 8px;font-size:11px;min-height:68px}.fw-scene-caption{gap:8px;padding:10px;font-size:9px}.fw-scene-caption span:last-child{margin-left:0}.fw-answer{padding:16px 20px;gap:8px;font-size:11px}.fw-answer strong{width:100%}.fw-answer b{display:none}.fw-answer span{border-right:1px solid #4b5c66;padding-right:8px}.fk-prose{font-size:17px;line-height:1.9;padding-top:12px}.fk-prose>h2,.fk-prose>ol,.fk-prose>p{margin-left:20px;margin-right:20px}.fk-prose>h2{font-size:24px;margin-top:32px}.fk-video{display:block;margin:28px 20px;padding:24px 0}.fk-video-intro h2{font-size:32px}.fk-video-intro h2 br{display:none}.fk-video-intro p:last-child{font-size:15px}.fk-video-player{margin-top:20px}.fk-experiment{margin:30px 20px;padding:20px 16px}.fk-experiment h2{font-size:22px}.fk-sliders{grid-template-columns:1fr;gap:8px}.fk-bar-row{grid-template-columns:44px 1fr 62px;gap:6px;font-size:11px}.fk-result{font-size:18px}.fk-end{margin:32px 20px 0;padding-bottom:28px}}@media(prefers-reduced-motion:reduce){.fk-story *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}#forge-case{scroll-margin-top:100px}.fk-case-evidence{display:grid;grid-template-columns:.6fr 1.4fr;gap:40px;max-width:1000px;margin:24px auto 32px;padding:28px 32px;background:#18242b;color:#e3ebeb}.fk-case-evidence>div>strong{font:500 64px/1.2 sans-serif;letter-spacing:-.05em;color:#ff9966}.fk-case-evidence>div>p:last-child{font-size:13px;line-height:1.8;color:#b7c7cd;margin:12px 0 0}.fk-case-evidence .fw-kicker{margin:0 0 14px;color:#ff9966}.fk-case-evidence dl{margin:0}.fk-case-evidence dl>div{display:grid;grid-template-columns:70px 1fr;gap:14px;padding:10px 0;border-bottom:1px solid #3c4a53;font-size:13px;line-height:1.8}.fk-case-evidence dl>div:last-child{border:0}.fk-case-evidence dt{color:#94aaa9}.fk-case-evidence dd{margin:0}.fk-case-evidence a{color:#70dcc2}@media(max-width:1050px){.fk-case-evidence{margin-left:24px;margin-right:24px}}@media(max-width:600px){.fk-case-evidence{grid-template-columns:1fr;gap:20px;margin:24px 20px;padding:22px 18px}.fk-case-evidence>div>strong{font-size:52px}.fk-case-evidence dl>div{grid-template-columns:58px 1fr;gap:8px}}