:root{color-scheme:dark;--fn-bg:#111c37;--fn-panel:#192746;--fn-line:#34415e;--fn-muted:#a0adbd;--fn-text:#eef3f8;--fn-gold:#e0d980;--fn-gold-muted:#c8b563;--fn-font:Arial,'Microsoft JhengHei',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}.fn-site{margin:0;background:var(--fn-bg);color:var(--fn-text);font:15px/1.6 var(--fn-font);-webkit-font-smoothing:antialiased}.fn-site a{color:inherit;text-decoration:none}.fn-site button,.fn-site select{font:inherit}.fn-site button,.fn-site select,.fn-site summary{cursor:pointer}.fn-site button{color:inherit}.fn-site button:disabled{cursor:wait;opacity:.6}.fn-site :focus-visible{outline:2px solid var(--fn-gold);outline-offset:5px}.fn-site [hidden]{display:none!important}.fn-site h1,.fn-site h2,.fn-site h3,.fn-site h4,.fn-site p{margin:0}.fn-site em{font-style:normal;color:var(--fn-gold)}.fn-main{width:min(1344px,calc(100% - 96px));margin:auto}.fn-header{width:min(1440px,100%);margin:auto;padding:25px 48px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #202b39;gap:20px}.fn-brand{display:flex;gap:12px;align-items:center;font-size:19px;line-height:1.15;font-weight:700;letter-spacing:-.5px}.fn-brand-mark{height:39px;width:39px;border:1px solid #506276;display:grid;place-content:center;font-size:28px;position:relative}.fn-brand-mark>span{position:absolute;right:4px;bottom:2px;color:var(--fn-gold)}.fn-brand-light{font-weight:400;color:#c1cbd8}.fn-brand small{display:block;font:8px/1.9 var(--fn-font);letter-spacing:2px;color:#9baabb}.fn-header nav{display:flex;gap:30px;align-items:center;font-size:12px;color:#c1cbd8}.fn-header nav a:hover,.fn-footer a:hover{color:var(--fn-gold)}.fn-outline{padding:10px 18px;border:1px solid #56677a;border-radius:5px}.fn-eyebrow{font-size:10px;font-weight:600;letter-spacing:1.8px;color:#a4b4c6;line-height:1.5}.fn-live-dot{display:inline-block;width:6px;height:6px;background:var(--fn-gold);border-radius:50%;margin-right:10px;box-shadow:0 0 14px #e0d98033}.fn-hero{padding:52px 0 38px;display:flex;justify-content:space-between;align-items:center;gap:25px}.fn-hero h1{font-size:clamp(31px,3.2vw,46px);line-height:1.12;font-weight:500;letter-spacing:-1.7px;margin:17px 0}.fn-hero>div>p:last-child{color:var(--fn-muted);font-size:13px}.fn-access-summary{display:flex;gap:20px;align-items:center;margin-right:20px;font-size:13px}.fn-access-summary b{font-weight:500}.fn-access-summary p{color:var(--fn-muted);font-size:12px}.fn-ring{height:90px;width:90px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--fn-gold) 0 10%,#263240 10% 100%);position:relative}.fn-ring:before{content:'';position:absolute;inset:3px;background:var(--fn-bg);border-radius:50%}.fn-ring strong{z-index:1;font-size:27px;font-weight:500}.fn-ring span{font-size:13px;color:var(--fn-muted)}.fn-badge{font-size:9px;letter-spacing:1.1px;border:1px solid #8e8453;background:#283468;color:#e0d980;border-radius:4px;padding:5px 9px;white-space:nowrap;display:inline-block;line-height:1.5}.fn-badge-muted{color:#c1c9d5;background:transparent;border-color:#3b4553;margin-top:10px;font-size:8px}.fn-controls{display:flex;justify-content:space-between;gap:24px;padding:22px 0;border-top:1px solid var(--fn-line);border-bottom:1px solid var(--fn-line);margin-bottom:32px}.fn-paper-controls{flex:1}.fn-papers{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.fn-papers button{border:1px solid var(--fn-line);background:transparent;border-radius:4px;min-width:37px;height:34px;font-size:12px;padding:0 10px;color:#b6c0ce}.fn-papers button:hover{border-color:#83989a}.fn-papers button[aria-pressed=true]{background:var(--fn-gold);color:#172343;border-color:var(--fn-gold);font-weight:700}.fn-language{display:flex;border:1px solid var(--fn-line);padding:3px;border-radius:5px;gap:2px;margin-top:12px}.fn-language button{border:0;background:transparent;padding:5px 15px;font-size:12px;color:#a9b7c6;white-space:nowrap;border-radius:3px}.fn-language button[aria-pressed=true]{background:#283646;color:#fff}.fn-explorer{border:1px solid var(--fn-line);border-radius:9px;overflow:hidden;background:#15213e;box-shadow:0 20px 60px #00000012}.fn-explorer-heading{padding:22px 26px;border-bottom:1px solid var(--fn-line);display:flex;align-items:center;justify-content:space-between;gap:20px}.fn-explorer-heading h2{font-size:21px;font-weight:500;letter-spacing:-.4px;margin-top:6px}.fn-outline-label{font-size:8px;letter-spacing:1.2px;color:#9aacc0;border:1px solid var(--fn-line);padding:6px 9px;white-space:nowrap;border-radius:3px}.fn-explorer-body{display:grid;grid-template-columns:280px minmax(0,1fr)}.fn-chapter-browser{border-right:1px solid var(--fn-line);padding:20px 15px 15px;background:#192746}.fn-index-heading{display:flex;justify-content:space-between;align-items:center;margin:0 4px 15px}.fn-index-heading .fn-eyebrow{font-size:8px;letter-spacing:1.2px}.fn-index-heading>span:last-child{font-size:9px;color:#a4b4c6}.fn-chapters{display:flex;flex-direction:column;gap:5px}.fn-chapter{border:1px solid transparent;display:grid;grid-template-columns:24px minmax(0,1fr) 14px;gap:8px;text-align:left;background:transparent;padding:10px 7px;border-radius:4px;width:100%;align-items:center;min-height:51px}.fn-chapter>span:first-child{font-size:11px;color:#94a1b3;font-variant-numeric:tabular-nums}.fn-chapter>span:nth-child(2){font-size:11px;line-height:1.4;color:#b5bfcd;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.fn-chapter svg{width:12px;stroke:#8c9baf}.fn-chapter:first-child{background:#283468}.fn-chapter:first-child>span,.fn-chapter:first-child svg{color:var(--fn-gold);stroke:var(--fn-gold)}.fn-chapter[aria-pressed=true]{border-color:#b8a053;background:#283468}.fn-chapter:hover{background:#233142}.fn-map-panel{position:relative;min-width:0;background:radial-gradient(ellipse at 50% 30%,#283468,#111c37 68%)}.fn-map-top{position:absolute;left:24px;right:18px;top:16px;display:flex;justify-content:space-between;align-items:center;z-index:3;pointer-events:none}.fn-legend{display:flex;gap:17px;font-size:9px;color:#b3bece}.fn-legend>span{display:flex;gap:7px;align-items:center}.fn-legend i{display:inline-block;width:5px;height:5px;background:var(--fn-gold);border-radius:50%}.fn-legend>span+span i{background:#c8b563}.fn-map-tools{display:flex;gap:5px;pointer-events:auto}.fn-map-tools button{background:#111e2ed9;border:1px solid #334357;width:29px;height:29px;border-radius:4px;font-size:16px;line-height:1}.fn-map-tools button:hover{background:#314558}.fn-map-stage{height:416px;position:relative;overflow:hidden}.fn-map-stage [data-map-canvas],.fn-map-labels{position:absolute;inset:0}.fn-map-stage canvas{display:block;width:100%;height:100%;outline:0}.fn-map-labels{pointer-events:none}.fn-map-node{position:absolute;transform:translate(-50%,-100%);display:flex;align-items:center;gap:6px;border:1px solid #766e4b;background:#192746dc;border-radius:4px;box-shadow:0 4px 15px #0003;padding:5px 9px;color:#eee7c4!important;font-size:10px!important;pointer-events:auto;white-space:nowrap}.fn-map-node:first-child{border-color:#c8b563;color:#f4e6aa!important;background:#283468ed}.fn-map-node[aria-pressed=true]{box-shadow:0 0 18px #e0d9802b;border-color:var(--fn-gold)}.fn-map-node small{font-size:8px;color:#e0d980}.fn-map-node svg{width:10px;height:10px}.fn-map-caption{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:0 24px 18px;position:relative;pointer-events:none}.fn-map-caption>div{display:flex;flex-direction:column;max-width:60%}.fn-map-caption .fn-eyebrow{font-size:8px;margin-bottom:4px}.fn-map-caption [data-map-caption]{font-size:11px;color:#d2dce8}.fn-map-caption>span{font-size:9px;color:#a1b0c2;text-align:right}.fn-chapter-teaser{border-top:1px solid var(--fn-line);padding:20px 24px;display:flex;gap:24px;align-items:center;justify-content:space-between;background:#1f2d5ecc;min-height:98px}.fn-chapter-teaser h3{font-weight:500;font-size:14px;line-height:1.4;margin:6px 0 0}.fn-chapter-teaser p{color:#afbdc9;font-size:10px;margin-top:5px}.fn-chapter-teaser>div{min-width:0;max-width:75%}.fn-chapter-teaser[data-locked=true]{background:#192746}.fn-text-link{font-size:11px;white-space:nowrap;padding-bottom:4px;border-bottom:1px solid #a8995b;color:#e0d980!important}.fn-reading{margin:55px 0}.fn-reading-heading{display:flex;justify-content:space-between;gap:28px;align-items:flex-start;margin-bottom:24px}.fn-reading-heading h2{font-size:26px;line-height:1.35;font-weight:500;max-width:850px;margin:10px 0;letter-spacing:-.5px}.fn-reading-heading p:last-child{font-size:12px;color:var(--fn-muted)}.fn-note-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start}.fn-note{border:1px solid var(--fn-line);background:var(--fn-panel);border-radius:7px;padding:25px 26px;scroll-margin-top:25px}.fn-note-number{font-size:9px;letter-spacing:1.4px;color:var(--fn-gold);display:flex;justify-content:space-between}.fn-note-number>span{color:#8495aa;letter-spacing:.5px}.fn-note h3{font-size:19px;line-height:1.4;font-weight:500;margin:14px 0 12px;letter-spacing:-.2px}.fn-note>p{font-size:13px;line-height:1.85;color:#c0cbd9}.fn-note ul{padding-left:18px;color:#bac7d5;font-size:12px;line-height:1.8;margin:17px 0}.fn-note li{padding-left:3px;margin:8px 0}.fn-note li::marker{color:#c8b563}.fn-note-example{border-left:2px solid #c8b563;background:#1f2d5e;padding:14px 17px;margin-top:20px}.fn-note-example b,.fn-note-trap b{font-size:8px;letter-spacing:1.3px;font-weight:600;color:#e0d980;display:block;margin-bottom:6px}.fn-note-example p{font-size:12px;color:#e8e3c8;line-height:1.8}.fn-note-trap{margin:18px 0;color:#c0cbd9;font-size:12px;line-height:1.8}.fn-note-trap b{color:#e0d980}.fn-note details{border-top:1px solid var(--fn-line);padding-top:12px;margin-top:18px}.fn-note summary{font-size:12px;line-height:1.6;color:var(--fn-gold);padding:5px 0}.fn-note details p{font-size:12px;line-height:1.8;color:#cbd6e1;padding-top:15px}.fn-reading-end{display:flex;justify-content:space-between;gap:20px;margin-top:20px;padding:20px;border:1px dashed #7b7351;border-radius:5px;color:#bbc3d1;font-size:12px}.fn-reading-end span{color:var(--fn-gold-muted)}.fn-upgrade{display:grid;grid-template-columns:34% 1fr;border:1px solid #6e684e;background:radial-gradient(ellipse at 10% 40%,#283468,#192746 65%);border-radius:8px;margin-bottom:60px;padding:38px 45px;gap:60px}.fn-upgrade-meter{border-right:1px solid #635f48;padding-right:45px}.fn-upgrade-meter>strong{font-size:72px;line-height:1.1;font-weight:500;letter-spacing:-4px;color:#e0d980}.fn-upgrade-meter>strong>span{font-size:32px;letter-spacing:-1px}.fn-upgrade-meter p{font-size:13px;line-height:1.7;color:#d2ccb0;margin-top:10px}.fn-ten-bars{display:flex;gap:4px;margin:25px 0 8px}.fn-ten-bars i{height:5px;background:#6a6552;flex:1;border-radius:1px}.fn-ten-bars i:first-child{background:var(--fn-gold)}.fn-upgrade-meter small{font-size:9px;color:#b8b8ad}.fn-upgrade h2{font-size:32px;font-weight:500;letter-spacing:-.7px;line-height:1.25;margin:10px 0 15px}.fn-upgrade-copy>p:not(.fn-eyebrow){font-size:13px;color:#aab8c9;max-width:580px;line-height:1.8}.fn-primary{display:inline-block;background:var(--fn-gold);border:1px solid var(--fn-gold);border-radius:4px;color:#172343!important;font-size:12px;font-weight:600;padding:13px 24px;margin-top:23px}.fn-primary:hover{background:#f4e6aa}.fn-upgrade-member{display:block;font-size:10px;color:#a0acbf!important;margin-top:14px}.fn-footer{border-top:1px solid var(--fn-line);padding:25px 48px 38px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:#99a8bb;width:min(1440px,100%);margin:auto}.fn-skip{position:absolute;left:15px;top:-100px;z-index:30;background:#172343;color:var(--fn-gold);padding:10px}.fn-skip:focus{top:10px}.fn-map-fallback{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;padding:100px 40px 50px}.fn-map-fallback button{height:94px;border:1px solid #9c8e58;background:#283468;color:#e8dfb4;border-radius:5px}.fn-map-fallback button:first-child{background:#283468;border-color:var(--fn-gold)}.fn-error{color:#f1b5af;font-size:12px;margin-top:16px!important}.fn-loading{padding:30px;border:1px solid var(--fn-line);border-radius:5px;color:#adbdcd}.fn-loading button{background:#29394b;border:1px solid #586e87;padding:7px 20px;border-radius:4px;margin-top:12px}.fn-map-panel:fullscreen{display:flex;flex-direction:column;width:100%;height:100%;background:#111c37}.fn-map-panel:fullscreen .fn-map-stage{flex:1;min-height:0}.fn-map-panel:fullscreen .fn-map-caption{padding-top:15px}
.fn-start{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center;min-height:calc(100vh - 180px);padding:75px 0}.fn-start h1{font-size:clamp(48px,5vw,72px);line-height:1.04;letter-spacing:-3px;font-weight:500;margin:28px 0}.fn-start-intro{font-size:15px;color:#b0bdcc;max-width:430px;line-height:1.85}.fn-start-features{display:flex;gap:16px;font-size:9px;color:#a1b2c5;margin:30px 0}.fn-google-form{max-width:420px}.fn-google{display:flex;width:100%;justify-content:center;align-items:center;gap:13px;padding:15px 20px;border-radius:5px;background:#fff;border:1px solid #dadce0;color:#1f1f1f!important;font:500 14px Arial,sans-serif!important}.fn-google>span:last-child{margin-left:auto;font-size:18px}.fn-google>svg{margin-right:auto}.fn-google:hover{background:#f7f5e8}.fn-consent{font-size:10px;line-height:1.8;color:#9eafc2;margin-top:15px!important}.fn-no-card{font-size:9px;color:#899bb0;margin-top:11px!important}.fn-start-preview{border:1px solid #3b4b5f;border-radius:9px;background:radial-gradient(ellipse at 45% 50%,#253047,#192746 65%);box-shadow:0 35px 100px #0002;overflow:hidden}.fn-preview-top{display:flex;justify-content:space-between;align-items:center;padding:25px 26px;border-bottom:1px solid #2f3b4d}.fn-select-row{padding:24px 26px 0;display:flex;justify-content:space-between;gap:15px;align-items:flex-end}.fn-select-row label{font-size:9px;letter-spacing:1px;color:#a7b4c7;text-transform:uppercase;display:flex;flex-direction:column;gap:7px;flex:1}.fn-select-row select{max-width:100%;border:1px solid #46556b;background:#131f2f;border-radius:4px;color:#eff3f9;font-size:12px;padding:8px 12px}.fn-start-preview h2{font-size:20px;font-weight:500;line-height:1.4;padding:20px 26px 0;min-height:82px}.fn-preview-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #303d4e;padding:23px 26px;align-items:center;background:#101b27}.fn-preview-bottom strong{font-size:14px;font-weight:500}.fn-preview-bottom p{font-size:10px;color:#a8b6c7;margin-top:4px}.fn-preview-number{font-size:32px;font-weight:500;letter-spacing:-1px;color:var(--fn-gold)}.fn-preview-number>span{font-size:14px;color:#98a6b8}.fn-start-map{height:310px;position:relative;overflow:hidden;perspective:750px}.fn-diagram-grid{position:absolute;inset:35px -20px 0;transform:rotateX(55deg) rotateZ(-28deg);background-image:linear-gradient(#52648322 1px,transparent 1px),linear-gradient(90deg,#52648322 1px,transparent 1px);background-size:28px 28px}.fn-diagram-path{position:absolute;inset:0;width:100%;height:100%;opacity:.6}.fn-diagram-stack{position:absolute;display:flex;flex-direction:column;gap:8px;transform:translate(-50%,-50%);align-items:center}.fn-diagram-stack i{width:65px;height:13px;background:#c8b56370;border:1px solid #d9c57aaa;transform:skewY(-12deg);box-shadow:4px 5px 0 #c8b56322}.fn-diagram-stack:nth-of-type(2) i{background:#e0d980a1;border-color:#f4e6aa;box-shadow:4px 5px 0 #e0d98045}.fn-diagram-stack span{font-size:9px;letter-spacing:1px;color:#e7dfbd;margin-bottom:4px}.fn-diagram-stack:nth-of-type(2) span{color:var(--fn-gold)}
@media(min-width:1500px){.fn-main{width:min(1344px,calc(100% - 128px))}.fn-map-stage{height:435px}}
@media(max-width:1100px){.fn-main{width:calc(100% - 48px)}.fn-header{padding:22px 24px}.fn-hero h1{font-size:37px}.fn-access-summary{margin-right:0;gap:12px}.fn-ring{width:72px;height:72px}.fn-explorer-body{grid-template-columns:235px minmax(0,1fr)}.fn-map-stage{height:440px}.fn-map-caption>span{max-width:40%;font-size:8px}.fn-papers button{min-width:32px;padding:0 7px}.fn-start{gap:40px}.fn-start-features{flex-direction:column;gap:4px}.fn-upgrade{gap:30px;padding:30px}.fn-upgrade-meter{padding-right:25px}}
@media(max-width:760px){.fn-main{width:calc(100% - 32px)}.fn-header{padding:18px 16px}.fn-brand{font-size:16px;gap:8px}.fn-brand-mark{width:33px;height:33px;font-size:24px}.fn-brand small{font-size:6px;letter-spacing:1.6px}.fn-header nav{gap:15px;font-size:10px}.fn-header nav>a:first-child{display:none}.fn-outline{padding:7px 10px}.fn-hero{padding:34px 0 25px}.fn-hero h1{font-size:33px;letter-spacing:-1px}.fn-hero>div>p:last-child{font-size:12px;max-width:290px}.fn-access-summary{display:none}.fn-controls{padding:19px 0;flex-direction:column;gap:17px;margin-bottom:22px}.fn-language-controls{display:flex;align-items:center;justify-content:space-between}.fn-language-controls .fn-language{margin:0}.fn-papers{gap:7px}.fn-papers button{min-width:35px;height:35px}.fn-explorer-heading{padding:18px}.fn-explorer-heading h2{font-size:19px}.fn-outline-label{display:none}.fn-explorer-body{display:flex;flex-direction:column-reverse}.fn-map-stage{height:320px}.fn-map-caption{padding:0 16px 16px}.fn-map-caption>span{display:none}.fn-map-caption>div{max-width:100%}.fn-map-top{left:16px;right:12px}.fn-chapter-teaser{padding:17px;gap:16px;min-height:120px}.fn-chapter-teaser>div{max-width:70%}.fn-chapter-teaser h3{font-size:13px}.fn-text-link{font-size:10px}.fn-chapter-browser{border:0;border-top:1px solid var(--fn-line);padding:18px 12px 12px}.fn-chapters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.fn-chapter{min-height:60px;gap:4px;grid-template-columns:20px minmax(0,1fr) 12px}.fn-chapter>span:nth-child(2){font-size:10px}.fn-chapter>span:first-child{font-size:10px}.fn-map-node{font-size:9px!important;padding:4px 5px;gap:3px}.fn-map-node small{font-size:7px}.fn-reading{margin:35px 0}.fn-reading-heading{gap:14px}.fn-reading-heading h2{font-size:23px;letter-spacing:-.3px}.fn-reading-heading .fn-badge{font-size:7px;padding:5px 6px}.fn-note-list{grid-template-columns:1fr;gap:14px}.fn-note{padding:22px}.fn-note h3{font-size:18px}.fn-reading-end{flex-direction:column;gap:8px}.fn-upgrade{grid-template-columns:1fr;gap:25px;padding:28px 23px;margin-bottom:35px}.fn-upgrade-meter{border-right:0;border-bottom:1px solid #635f48;padding:0 0 23px;display:grid;grid-template-columns:1fr 1fr;column-gap:20px}.fn-upgrade-meter>strong{font-size:64px}.fn-upgrade-meter>p{font-size:12px}.fn-ten-bars{margin:18px 0 8px;grid-column:1/-1}.fn-upgrade-meter small{grid-column:1/-1}.fn-upgrade h2{font-size:29px}.fn-footer{padding:22px 18px 90px;font-size:9px}.fn-start{grid-template-columns:1fr;gap:32px;padding:35px 0}.fn-start h1{font-size:54px;letter-spacing:-2px;margin:22px 0}.fn-start-intro{font-size:14px}.fn-start-features{flex-direction:row;flex-wrap:wrap;gap:6px 18px;margin:22px 0}.fn-google-form{max-width:none}.fn-start-map{height:260px}.fn-start-preview h2{font-size:18px}.fn-preview-top{padding:20px}.fn-select-row{padding:20px 20px 0}.fn-select-row .fn-language button{padding:5px 10px}.fn-map-fallback{gap:10px;padding:90px 20px 30px}.fn-map-fallback button{height:80px}.fn-hero .fn-eyebrow{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

/* Use the same logo and navy/gold identity as the main site. */
.fn-logo{display:block;width:240px;height:auto;max-width:100%;object-fit:contain}.fn-brand{flex-shrink:0}.fn-header{background:#1f2d5e}.fn-map-stage canvas{touch-action:pan-y pinch-zoom}.fn-chapter>span:nth-child(2){display:block;-webkit-line-clamp:unset;overflow:visible}.fn-chapter{align-items:start}.fn-map-stage{touch-action:pan-y pinch-zoom}
@media(max-width:760px){.fn-logo{width:185px}.fn-header{gap:12px;flex-wrap:wrap}.fn-header nav{gap:14px}.fn-explorer-body{flex-direction:column}.fn-map-stage{height:240px}.fn-chapters{grid-template-columns:1fr}.fn-chapter{min-height:0;padding:10px 8px;grid-template-columns:24px minmax(0,1fr) 14px}.fn-chapter>span:nth-child(2){font-size:12px;line-height:1.5}}