:root{--paper: #ffffff;--paper-dim: #f5f7f9;--ink: #17233b;--muted: #5c6b84;--grid: #e6eaf0;--line-main: #d7263d;--line-orange: #e8850c;--line-blue: #0868ac;--go: #00925f;--go-bg: #e9f6f0;--radius: 10px;--content: 720px;--wide: 1080px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif;font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:var(--line-blue);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:3px solid var(--line-blue);outline-offset:2px;border-radius:4px}.wrap{max-width:var(--content);margin:0 auto;padding:0 20px}.wrap-wide{max-width:var(--wide);margin:0 auto;padding:0 20px}.site-header{border-bottom:2px solid var(--ink);background:var(--paper)}.site-header .bar{max-width:var(--wide);margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;font-size:1.05rem;letter-spacing:.02em}.brand:hover{text-decoration:none}.brand .dot{width:18px;height:18px;border-radius:50%;border:5px solid var(--line-main);background:var(--paper);flex:none}.site-nav{margin-left:auto;display:flex;gap:20px}.site-nav a{color:var(--ink);font-weight:500;font-size:.95rem}.site-nav a[aria-current=page]{border-bottom:3px solid var(--line-main)}.hero{padding:56px 0 8px}.hero .eyebrow{color:var(--line-main);font-weight:700;font-size:.9rem;letter-spacing:.18em}.hero h1{font-size:clamp(2rem,5.5vw,3.4rem);font-weight:900;line-height:1.2;margin:8px 0 12px;letter-spacing:.01em}.hero .lede{color:var(--muted);font-size:1.06rem;max-width:34em;margin:0}.self-check{margin:36px 0 8px}.self-check .label{font-weight:700;font-size:.92rem;color:var(--muted);margin-bottom:10px}.self-check 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12);top:21px;height:8px;border-radius:4px;background:var(--line-main);transform-origin:left center;animation:draw-line .9s cubic-bezier(.2,.7,.3,1) both}.main-line li{flex:1;position:relative;animation:pop-in .45s cubic-bezier(.2,.7,.3,1) both}.main-line li:nth-child(1){animation-delay:.15s}.main-line li:nth-child(2){animation-delay:.28s}.main-line li:nth-child(3){animation-delay:.41s}.main-line li:nth-child(4){animation-delay:.54s}.main-line li:nth-child(5){animation-delay:.67s}.main-line li:nth-child(6){animation-delay:.8s}@keyframes draw-line{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes pop-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.station{display:flex;flex-direction:column;align-items:center;text-align:center;color:var(--ink);padding:0 6px}.station:hover{text-decoration:none}.station .node{width:50px;height:50px;border-radius:50%;background:var(--paper);border:5px solid var(--line-main);display:grid;place-items:center;font-weight:900;font-size:.88rem;letter-spacing:.02em;position:relative;z-index:1;transition:transform .15s}.station:hover .node{transform:scale(1.12)}.station .s-text{display:flex;flex-direction:column;align-items:center}.station .s-name{margin-top:10px;font-weight:900;font-size:1.02rem;letter-spacing:.04em}.station .s-tag{color:var(--muted);font-size:.8rem;line-height:1.45;margin-top:2px}.here-pin{position:absolute;top:-34px;left:50%;transform:translate(-50%);background:var(--line-main);color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.08em;padding:3px 9px;border-radius:6px;white-space:nowrap;display:none;z-index:2}.here-pin:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:5px solid transparent;border-top-color:var(--line-main)}li.here .here-pin{display:block;animation:pin-drop .35s cubic-bezier(.2,.7,.3,1.4) both}@keyframes pin-drop{0%{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%)}}.branch-lines{margin:36px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}.branch{border:1.5px solid var(--grid);border-radius:var(--radius);padding:16px 18px}.branch .b-head{display:flex;align-items:center;gap:10px;font-weight:900}.branch .b-seg{width:34px;height:8px;border-radius:4px;flex:none}.branch.orange .b-seg{background:var(--line-orange)}.branch.blue .b-seg{background:var(--line-blue)}.branch .transfer{margin-left:auto;font-size:.78rem;font-weight:700;color:var(--muted);border:1.5px solid var(--grid);border-radius:999px;padding:2px 10px;white-space:nowrap}.branch .stops{color:var(--muted);font-size:.88rem;margin:10px 0 0;line-height:1.9}.branch .stops .sep{color:var(--grid);margin:0 2px}.mode-legend{margin:40px 0 0;padding:14px 18px;background:var(--paper-dim);border-radius:var(--radius);font-size:.9rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 24px}.mode-legend b{color:var(--ink)}.stations-detail{margin-top:56px;border-top:2px solid var(--ink);padding-top:8px}.detail-h{font-size:1.3rem;font-weight:900;margin:28px 0 4px}.station-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0 8px}.station-mini{display:flex;flex-direction:column;color:var(--ink);border:1.5px solid var(--grid);border-radius:var(--radius);padding:18px 20px;transition:border-color .15s,transform .15s}.station-mini:hover{text-decoration:none;border-color:var(--line-main);transform:translateY(-2px)}.mini-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.mini-badge{width:38px;height:38px;border-radius:50%;border:4px solid var(--line-main);display:grid;place-items:center;font-weight:900;font-size:.8rem;flex:none}.mini-name{font-weight:900;font-size:1.1rem;letter-spacing:.03em}.mini-tag{color:var(--muted);font-size:.86rem;margin:10px 0 0;font-weight:700}.mini-intro{font-size:.9rem;margin:8px 0 0;color:var(--ink);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.mini-cta{margin-top:auto;padding-top:14px;color:var(--line-main);font-weight:700;font-size:.86rem}@media(max-width:900px){.station-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.station-grid{grid-template-columns:1fr}}.station-card{padding:44px 0;border-bottom:1.5px solid var(--grid);scroll-margin-top:90px}.station-card .head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.station-card .node-badge{width:46px;height:46px;border-radius:50%;border:5px solid var(--line-main);display:grid;place-items:center;font-weight:900;font-size:.85rem;flex:none}.station-card h2{font-size:1.55rem;font-weight:900;margin:0;letter-spacing:.03em}.station-card .tagline{color:var(--muted);font-size:.98rem;width:100%;margin:2px 0 0 60px}.station-card .mode-chip{margin-left:auto;font-size:.78rem;font-weight:700;color:var(--muted);background:var(--paper-dim);border-radius:999px;padding:4px 12px;white-space:nowrap}.station-card .highlight-chip{font-size:.78rem;font-weight:700;color:var(--line-main);border:1.5px solid var(--line-main);border-radius:999px;padding:3px 11px;white-space:nowrap}.station-card .intro{margin:18px 0 0;max-width:42em}.station-card h3{font-size:.92rem;font-weight:700;letter-spacing:.14em;color:var(--muted);margin:26px 0 8px}.station-card ul.unlocks{margin:0;padding:0;list-style:none}.station-card ul.unlocks li{padding:7px 0 7px 26px;position:relative}.station-card ul.unlocks li:before{content:"";position:absolute;left:4px;top:16px;width:9px;height:9px;border-radius:50%;border:3px solid var(--line-main);background:var(--paper)}.exit-gate{margin-top:22px;padding:14px 18px;background:var(--go-bg);border-left:4px solid var(--go);border-radius:0 var(--radius) var(--radius) 0}.exit-gate .gate-label{font-weight:900;font-size:.85rem;letter-spacing:.14em;color:var(--go)}.exit-gate p{margin:4px 0 0}.station-card .sources{margin-top:18px;font-size:.84rem;color:var(--muted)}.station-card .sources a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.branch-badge{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-weight:900;font-size:1.3rem;color:#fff;flex:none}.branch-stops-line{font-size:1rem;line-height:2}.branch-stops-line .sep{font-weight:900}.article-list{list-style:none;margin:32px 0;padding:0}.article-list li{border:1.5px solid var(--grid);border-radius:var(--radius);margin-bottom:14px;transition:border-color .15s}.article-list li:hover{border-color:var(--ink)}.article-list a{display:block;padding:20px 22px;color:var(--ink)}.article-list a:hover{text-decoration:none}.article-list .a-meta{font-size:.82rem;color:var(--muted);display:flex;gap:12px;align-items:center;margin-bottom:4px}.article-list .a-title{font-size:1.18rem;font-weight:900}.article-list .a-desc{color:var(--muted);font-size:.94rem;margin-top:4px}.chip-station{font-weight:900;color:var(--line-main)}.chip-draft{font-weight:700;color:var(--line-orange);border:1.5px solid currentColor;border-radius:999px;padding:1px 9px;font-size:.75rem}.attribution{margin:28px 0;padding:14px 18px;background:var(--paper-dim);border-radius:var(--radius);font-size:.86rem;color:var(--muted);line-height:1.7}.prose h1{font-size:clamp(1.7rem,4.5vw,2.4rem);font-weight:900;line-height:1.3;margin:16px 0 8px}.prose h2{font-size:1.4rem;font-weight:900;margin:40px 0 12px;padding-top:24px;border-top:1.5px solid var(--grid)}.prose h3{font-size:1.1rem;font-weight:700;margin:28px 0 8px}.prose blockquote{margin:20px 0;padding:4px 20px;border-left:4px solid var(--line-main);color:var(--muted)}.prose code{background:var(--paper-dim);border-radius:5px;padding:2px 6px;font-size:.88em}.prose pre{background:var(--ink);color:#e8edf5;padding:18px 20px;border-radius:var(--radius);overflow-x:auto;font-size:.88rem;line-height:1.65}.prose pre code{background:none;padding:0}.prose img{max-width:100%}.prose table{border-collapse:collapse;width:100%;font-size:.92rem}.prose th,.prose td{border:1.5px solid var(--grid);padding:8px 12px;text-align:left}.prose th{background:var(--paper-dim)}.a-date{color:var(--muted);font-size:.88rem}.page-head{padding:48px 0 8px}.page-head h1{font-size:clamp(1.8rem,5vw,2.6rem);font-weight:900;margin:0 0 8px}.page-head .lede{color:var(--muted);max-width:36em}.station-page{padding:32px 0 0}.back-link{font-size:.9rem;font-weight:500}.sp-head{display:flex;align-items:flex-start;gap:16px;margin:20px 0 0;flex-wrap:wrap}.sp-title{display:flex;gap:16px;align-items:center}.sp-head .node-badge{width:54px;height:54px;border-radius:50%;border:6px solid var(--line-main);display:grid;place-items:center;font-weight:900;font-size:.95rem;flex:none}.sp-head h1{font-size:clamp(1.7rem,5vw,2.4rem);font-weight:900;margin:0;letter-spacing:.03em}.sp-tag{color:var(--muted);margin:2px 0 0;font-size:1rem}.sp-head .mode-chip{margin-left:auto;font-size:.78rem;font-weight:700;color:var(--muted);background:var(--paper-dim);border-radius:999px;padding:5px 13px;white-space:nowrap}.sp-intro{font-size:1.08rem;margin:24px 0 8px;max-width:42em}.sp-h{font-size:.9rem;font-weight:700;letter-spacing:.14em;color:var(--muted);margin:32px 0 10px}.sp-unlocks .unlocks{margin:0;padding:0;list-style:none}.sp-unlocks .unlocks li{padding:7px 0 7px 26px;position:relative}.sp-unlocks .unlocks li:before{content:"";position:absolute;left:4px;top:16px;width:9px;height:9px;border-radius:50%;border:3px solid var(--line-main);background:var(--paper)}.sp-skills-head{margin-top:44px;padding-top:28px;border-top:2px solid var(--ink)}.sp-skills-head .sp-h{margin-top:0}.sp-hint{color:var(--muted);font-size:.95rem;margin:0 0 8px}.skill{border:1.5px solid var(--grid);border-radius:var(--radius);padding:22px 24px;margin:18px 0;scroll-margin-top:88px}.skill-head{display:flex;align-items:baseline;gap:12px}.skill-num{font-weight:900;font-size:.95rem;color:var(--line-main);font-variant-numeric:tabular-nums;flex:none}.skill-head h3{font-size:1.25rem;font-weight:900;margin:0}.skill-summary{margin:12px 0 0;font-size:1.02rem}.key-points{margin:14px 0 0;padding:0;list-style:none}.key-points li{position:relative;padding:5px 0 5px 24px;font-size:.96rem}.key-points li:before{content:"✓";position:absolute;left:0;top:5px;color:var(--go);font-weight:900}.deep{margin-top:18px;border-top:1.5px dashed var(--grid)}.deep summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px;padding:14px 0 4px;font-weight:700;font-size:.95rem;color:var(--line-blue)}.deep summary::-webkit-details-marker{display:none}.deep summary:before{content:"▸";transition:transform .15s;font-size:.85em}.deep[open] summary:before{transform:rotate(90deg)}.deep .deep-close,.deep[open] .deep-open{display:none}.deep[open] .deep-close{display:inline}.deep-body{padding:8px 0}.video-block{margin:4px 0 22px}.video-embed{position:relative;width:100%;aspect-ratio:16 / 9;border-radius:var(--radius);overflow:hidden;background:#000;border:1.5px solid var(--grid)}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.video-src{margin:8px 0 0;font-size:.82rem;color:var(--muted)}.video-src a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.deep-prose p{margin:0 0 14px}.deep-body h4{font-size:.82rem;font-weight:700;letter-spacing:.14em;color:var(--muted);margin:24px 0 10px}.steps ol{margin:0;padding:0;list-style:none;counter-reset:step}.steps ol li{position:relative;padding:0 0 16px 44px;counter-increment:step}.steps ol li:before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:var(--line-main);color:#fff;font-weight:900;font-size:.85rem;display:grid;place-items:center}.steps ol li:after{content:"";position:absolute;left:13px;top:30px;bottom:4px;width:2px;background:var(--grid)}.steps ol li:last-child:after{display:none}.steps ol li b{display:block;margin-bottom:3px}.steps ol li span{color:var(--muted);font-size:.96rem}.example .ba{display:grid;grid-template-columns:1fr 1fr;gap:12px}.example .before,.example .after{padding:12px 14px;border-radius:var(--radius);background:var(--paper-dim);font-size:.92rem}.example .after{background:var(--go-bg)}.ba-tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--muted);margin-bottom:6px}.ba-tag.good{color:var(--go)}.example .ba p{margin:0}.pitfalls ul{margin:0;padding:0;list-style:none}.pitfalls li{position:relative;padding:5px 0 5px 24px;font-size:.95rem}.pitfalls li:before{content:"⚠";position:absolute;left:0;top:5px;color:var(--line-orange)}.skill-source{margin:18px 0 0;font-size:.82rem;color:var(--muted)}.deep-todo{color:var(--muted);background:var(--paper-dim);padding:16px 18px;border-radius:var(--radius);margin:20px 0}.sp-nav{display:flex;justify-content:space-between;gap:12px;margin:40px 0 0;padding-top:24px;border-top:1.5px solid var(--grid);font-weight:700;font-size:.95rem}.sp-nav .next{margin-left:auto;text-align:right}@media(max-width:640px){.example .ba{grid-template-columns:1fr}}.site-footer{margin-top:80px;border-top:2px solid var(--ink);padding:32px 0 48px;font-size:.84rem;color:var(--muted);line-height:1.8}.site-footer a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}.site-footer .cols{max-width:var(--wide);margin:0 auto;padding:0 20px}@media(max-width:760px){.self-check .choices,.branch-lines{grid-template-columns:1fr}.main-line{flex-direction:column;gap:0;padding-left:4px}.main-line:before{inset:40px auto 40px 25px;height:auto;width:8px;transform-origin:top center;animation-name:draw-line-v}@keyframes draw-line-v{0%{transform:scaleY(0)}to{transform:scaleY(1)}}.station{flex-direction:row;text-align:left;align-items:center;gap:14px;padding:14px 0}.station .node{flex:none}.station .s-name{margin-top:0}.station .s-text{align-items:flex-start}.here-pin{top:50%;left:auto;right:0;transform:translateY(-50%)}.here-pin:after{top:50%;left:-9px;transform:translateY(-50%);border:5px solid transparent;border-right-color:var(--line-main)}li.here .here-pin{animation:none}.station-card .tagline,.station-card .mode-chip{margin-left:0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.main-line:before,.main-line li,li.here .here-pin{animation:none}}