:root{--bg:#f5f1e8;--paper:#fffdf8;--ink:#16352d;--muted:#63736c;--forest:#062e27;--green:#0e4a3b;--gold:#c59b5a;--line:#e5dbcb}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.85 "Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}a{color:inherit}button,select{font:inherit}button{cursor:pointer}h1,h2,h3{font-family:"Noto Serif TC","Songti TC",serif;line-height:1.35}h2{font-size:clamp(1.75rem,3vw,2.5rem);margin:10px 0 18px}h3{font-size:1.22rem;margin:22px 0 10px}p{margin:9px 0 17px}.hero{background:radial-gradient(ellipse at 82% 32%,#1a644c 0,transparent 38%),linear-gradient(125deg,#061d19,#0d4135 70%,#082b24);color:#fff;overflow:hidden}.hero-inner{max-width:1280px;margin:auto;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;min-height:450px;padding:74px 34px;align-items:center}.eyebrow{color:#e0b876;font-size:.79rem;letter-spacing:.24em;font-weight:900}.hero h1{font-size:clamp(2.8rem,5.3vw,5rem);margin:16px 0 24px}.hero p{max-width:680px;color:#e0e9e2;font-size:1.07rem}.cta{display:inline-block;text-decoration:none;background:#e0bd7d;color:#0c3028;border-radius:40px;padding:10px 25px;font-weight:900;margin-top:17px}.hero-art{display:flex;justify-content:center;align-items:center;gap:0;transform:rotate(-8deg)}.hero-art img{width:43%;max-width:185px;filter:drop-shadow(0 15px 20px #0007)}.hero-art img+img{transform:translate(-13px,35px) rotate(16deg)}.layout{max-width:1280px;margin:auto;display:grid;grid-template-columns:215px minmax(0,1fr);gap:42px;padding:45px 28px 90px}aside{align-self:start;position:sticky;top:24px;background:#ede7db;border-radius:18px;padding:23px}aside strong{display:block;margin-bottom:12px}aside a{display:block;text-decoration:none;color:#4c6158;padding:7px 0;font-size:.87rem}main{min-width:0}section{padding:32px 0 54px;border-bottom:1px solid var(--line)}.tag{color:#b0803d;letter-spacing:.19em;font-size:.77rem;font-weight:900}.lead{font-size:1.14rem;color:#445e51}.panel{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:25px;box-shadow:0 8px 26px #493a2407}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.metric{background:#fffdf8;border:1px solid var(--line);border-radius:14px;padding:18px}.metric b{font-size:1.5rem;color:#0a4d3d}.muted{color:var(--muted);font-size:.91rem}.note{background:#eee4d0;border-left:4px solid var(--gold);border-radius:10px;padding:16px 20px;margin:20px 0}.dark{background:#0a382f;color:#fff;border-radius:17px;padding:25px}.dark p{color:#d4e4d9}.hand{background:#fffdf8;border:1px solid var(--line);border-radius:15px;padding:20px}.hand strong{display:block;margin-bottom:12px}.cards{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.card{width:74px;height:auto;aspect-ratio:5/7;object-fit:contain;filter:drop-shadow(0 4px 7px #0002)}.card.large{width:110px}.score{font-size:1.5rem;color:#0c4a3c;font-weight:900;margin-top:10px}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:15px;background:#fffdf8}table{width:100%;border-collapse:collapse;min-width:680px;text-align:center;font-size:.94rem}th,td{border-bottom:1px solid #e8dfd0;padding:12px 10px}thead th{background:#0c4337;color:#fff;font-size:.88rem}tbody tr:nth-child(even){background:#f8f4ec}tbody th{text-align:left;color:#0a4437}td.yes{color:#086d47;font-weight:900}td.no{color:#8e5a43}.rule{display:flex;gap:15px;align-items:flex-start;margin:14px 0}.number{display:grid;place-items:center;background:#e7d4b0;color:#194238;width:35px;height:35px;border-radius:50%;flex:none;font-weight:900}.select-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.select-row label{display:grid;gap:4px;flex:1;min-width:180px;font-weight:800}.select-row select{background:#fff;border:1px solid #cfc6b7;border-radius:9px;padding:11px;width:100%;color:#173b31}.result{margin-top:17px;padding:17px;background:#e9f1e9;border-radius:12px;border:1px solid #b9d0bc;font-weight:800}.quiz-q{background:#fffdf8;border:1px solid var(--line);padding:22px;border-radius:16px;margin:15px 0}.options{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}.options button{border:1px solid #c9bda9;border-radius:30px;background:#fff;padding:8px 18px;color:#15392f}.options button:hover{background:#e9ddc7}.feedback{min-height:30px;margin-top:9px;font-weight:800}.foot{background:#092e27;color:#d8e4dc;text-align:center;padding:30px}.foot a{color:#e4c38d}.small{font-size:.85rem;color:#64776d}@media(max-width:850px){.hero-inner{grid-template-columns:1fr;min-height:auto;padding:62px 24px 45px}.hero-art{max-width:350px;margin:auto}.layout{grid-template-columns:1fr;padding:24px 18px 70px}aside{position:static;display:flex;flex-wrap:wrap;gap:0 16px}aside strong{width:100%}.grid2,.grid3{grid-template-columns:1fr}.card{width:65px}.card.large{width:88px}.panel{padding:18px}section{padding:27px 0 45px}}

.hero-art{gap:0}.hero-art img{max-width:155px}.stat-num{font-size:clamp(1.9rem,3.5vw,2.8rem);font-weight:900;line-height:1.3;color:#0d5140}.stat-label{color:#64776d;font-size:.86rem;font-weight:800}.bar-track{height:17px;border-radius:50px;background:#e8e0d4;overflow:hidden;margin:8px 0 4px}.bar-fill{height:100%;border-radius:50px;background:#14614b}.bar-fill.player{background:#b68a52}.bar-fill.tie{background:#89978b}.bar-row{margin:18px 0}.bar-head{display:flex;justify-content:space-between;gap:10px;font-weight:800}.bar-head span:last-child{font-variant-numeric:tabular-nums}.chip{display:inline-block;border:1px solid #cfb990;border-radius:50px;padding:2px 11px;color:#806039;font-size:.75rem;font-weight:900}.big-result{font-size:clamp(1.4rem,3vw,2rem);font-weight:900;color:#0a4e3e}.formula{background:#102f29;color:#f3ead9;border-radius:13px;padding:20px;overflow-x:auto;font-size:1.05rem;font-weight:800;line-height:1.8}.seg{display:flex;flex-wrap:wrap;gap:8px}.seg button{background:#fff;border:1px solid #b9b0a0;border-radius:50px;padding:8px 17px;color:#16352d}.seg button.active{background:#0d5140;color:white;border-color:#0d5140}.inputbox{width:100%;border:1px solid #c9bfae;border-radius:10px;padding:11px;background:white;color:#123e31;font:inherit}.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.calc-grid label{display:grid;gap:7px;font-weight:800}.breakdown{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}.breakdown>div{background:#f5f0e7;padding:13px;border-radius:12px}.breakdown b{display:block;font-size:1.25rem;color:#0d5140}.prob-legend{display:flex;gap:15px;flex-wrap:wrap;margin-top:8px;font-size:.84rem;color:#53685c}.swatch{width:12px;height:12px;display:inline-block;border-radius:3px;margin-right:5px}.quiz-q button.selected{background:#0e4a3b;color:#fff}.kicker{font-weight:800;color:#a97e41;font-size:.77rem;letter-spacing:.17em}@media(max-width:700px){.calc-grid,.breakdown{grid-template-columns:1fr}.hero-art img{width:45%}}

.road-board{overflow-x:auto;background:#fffdf8;border:1px solid var(--line);border-radius:15px;padding:12px}.road-grid{display:grid;grid-template-rows:repeat(6,29px);grid-auto-flow:column;grid-auto-columns:29px;width:max-content;gap:2px;min-width:100%}.road-cell{width:29px;height:29px;border:1px solid #e6e0d6;border-radius:3px;display:grid;place-items:center;position:relative}.chip{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:900}.chip.b{background:#c93635;color:#fff}.chip.p{background:#2676c7;color:#fff}.chip.t{background:#27885c;color:#fff}.chip.outline{background:transparent;border:3px solid}.chip.outline.b{color:#c93635;border-color:#c93635}.chip.outline.p{color:#2676c7;border-color:#2676c7}.ties{position:absolute;right:-2px;bottom:-4px;color:#167e4d;background:#fff;border-radius:5px;font-size:9px;font-weight:900;line-height:1}.controls{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}.controls button{border:0;border-radius:11px;padding:9px 17px;color:white;font-weight:900}.controls .bank{background:#c93635}.controls .player{background:#2676c7}.controls .tie{background:#27885c}.controls .undo{background:#6b7770}.controls .reset{background:#3e5149}.road-label{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.road-label h3{margin:15px 0 8px}.road-legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.85rem;color:#596d61}.road-legend b{color:#1b4939}.pill{background:#e9ddc8;border-radius:50px;padding:5px 12px;font-size:.82rem;font-weight:900}.step{display:flex;gap:13px;margin:14px 0}.step em{font-style:normal;flex:none;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#dfc38e;color:#12372d;font-weight:900}.step div{flex:1}.road-diagram{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.faq details{background:#fffdf8;border:1px solid var(--line);border-radius:12px;margin:9px 0;padding:15px 18px}.faq summary{font-weight:900;cursor:pointer}.quiz-item{border:1px solid var(--line);border-radius:16px;background:#fffdf8;padding:21px;margin:14px 0}.quiz-item button{border:1px solid #bdb29e;border-radius:24px;background:#fff;padding:8px 15px;margin:7px 7px 0 0}.quiz-item button:hover{background:#eae2d3}.quiz-feedback{min-height:25px;font-weight:800;margin-top:10px}.road-note{font-size:.82rem;color:#65796c}@media(max-width:800px){.road-diagram{grid-template-columns:1fr}.road-grid{grid-template-rows:repeat(6,25px);grid-auto-columns:25px}.road-cell{width:25px;height:25px}.chip{width:19px;height:19px;font-size:10px}}

/* Road-marker clarity fix: override generic .chip pill styling. */
.road-cell .road-token{box-sizing:border-box;display:flex;align-items:center;justify-content:center;flex:none;width:24px;height:24px;min-width:24px;min-height:24px;margin:0;padding:0;border:0;border-radius:50%;font-family:"Noto Sans TC","Microsoft JhengHei","PingFang TC",sans-serif;font-size:14px;font-weight:800;line-height:1;letter-spacing:0;white-space:nowrap;text-align:center;text-indent:0;box-shadow:none;}
.road-cell .road-token.b{background:#c93635;color:#fff;}
.road-cell .road-token.p{background:#2676c7;color:#fff;}
.road-cell .road-token.t{background:#27885c;color:#fff;}
.road-cell .road-token.outline{background:transparent;border:2.5px solid;font-size:0;}
.road-cell .road-token.outline.b{border-color:#c93635;color:#c93635;}
.road-cell .road-token.outline.p{border-color:#2676c7;color:#2676c7;}
.road-cell .road-token .ties{font-size:9px;line-height:1;}


/* Isolated road markers: no inherited .chip pill styles. */
.road-grid{grid-template-rows:repeat(6,36px)!important;grid-auto-columns:36px!important;gap:3px!important}
.road-cell{width:36px!important;height:36px!important;box-sizing:border-box!important}
.road-cell .road-token{
 display:flex!important;align-items:center!important;justify-content:center!important;
 box-sizing:border-box!important;position:relative!important;flex:0 0 30px!important;
 width:30px!important;height:30px!important;min-width:30px!important;min-height:30px!important;
 margin:0!important;padding:0!important;border:0!important;border-radius:50%!important;
 font-family:"Microsoft JhengHei","Noto Sans TC","PingFang TC",sans-serif!important;
 font-size:16px!important;font-weight:800!important;line-height:30px!important;
 letter-spacing:0!important;text-align:center!important;text-indent:0!important;
 white-space:nowrap!important;overflow:visible!important;box-shadow:none!important;
}
.road-cell .road-token.b{background:#c93635!important;color:#fff!important}
.road-cell .road-token.p{background:#2676c7!important;color:#fff!important}
.road-cell .road-token.t{background:#27885c!important;color:#fff!important}
.road-cell .road-token.outline{background:transparent!important;border:3px solid!important;font-size:0!important}
.road-cell .road-token.outline.b{border-color:#c93635!important}
.road-cell .road-token.outline.p{border-color:#2676c7!important}
.road-cell .road-token .ties{font-size:9px!important;line-height:1.2!important}

/* Page 15 color-legend example only: improve playing-card legibility. */
.road-color-example-cards{gap:14px;margin:14px 0 18px}
.road-color-example-cards .card{width:clamp(94px,11vw,120px);max-width:calc((100% - 42px)/4);height:auto}
@media(max-width:520px){.road-color-example-cards{gap:10px}.road-color-example-cards .card{width:clamp(76px,22vw,100px);max-width:calc((100% - 10px)/2)}}

/* Crop the large blank margins inside the SVG artwork, only in the four-card color legend. */
.road-color-example-cards .road-color-card-frame{position:relative;display:block;flex:0 0 112px;width:112px;height:146px;overflow:hidden;border-radius:12px;background:#fff;box-shadow:0 4px 12px #0002}
.road-color-example-cards .road-color-card-frame .card{position:absolute;left:50%;top:50%;width:270px!important;max-width:none!important;height:auto!important;aspect-ratio:5/7;transform:translate(-50%,-50%);filter:none}
@media(max-width:520px){.road-color-example-cards .road-color-card-frame{flex-basis:94px;width:94px;height:128px}.road-color-example-cards .road-color-card-frame .card{width:235px!important}}

/* Only the four suit/color examples: real HTML faces, no SVG whitespace. */
.road-color-html-cards{display:flex;flex-wrap:wrap;gap:14px;margin:16px 0 20px}
.road-color-html-cards .road-html-card{box-sizing:border-box;position:relative;display:block;flex:0 0 112px;width:112px;height:156px;border:1px solid #dedbd4;border-radius:10px;background:#fff;box-shadow:0 5px 12px #0002;font-family:Georgia,"Times New Roman",serif;line-height:1;color:#1c2424;overflow:hidden}
.road-color-html-cards .road-html-card.red{color:#c82c37}
.road-color-html-cards .road-card-corner{position:absolute;top:9px;left:9px;display:flex;flex-direction:column;align-items:center;font-size:25px;font-weight:800;line-height:1.02}
.road-color-html-cards .road-card-corner span{font-size:20px}
.road-color-html-cards .road-card-corner.bottom{top:auto;left:auto;bottom:9px;right:9px;transform:rotate(180deg)}
.road-color-html-cards .road-card-suit{position:absolute;inset:0;display:grid;place-items:center;font-size:67px;font-weight:400;line-height:1}
@media(max-width:520px){.road-color-html-cards{gap:10px}.road-color-html-cards .road-html-card{flex-basis:90px;width:90px;height:128px}.road-color-html-cards .road-card-corner{font-size:20px;top:7px;left:7px}.road-color-html-cards .road-card-corner span{font-size:16px}.road-color-html-cards .road-card-corner.bottom{bottom:7px;right:7px}.road-color-html-cards .road-card-suit{font-size:53px}}