:root{--bq-paper:#f7f4ec;--bq-surface:#fffdf8;--bq-ink:#302d30;--bq-muted:#69626a;--bq-line:#67415b;--bq-line-soft:#eee6ec;--bq-accent:#964f37;--bq-accent-soft:#f3e9df;--bq-rule:#d8d1c8;--bq-grey:#e9e7e2;--bq-font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--bq-mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;--bq-space-1:4px;--bq-space-2:8px;--bq-space-3:12px;--bq-space-4:16px;--bq-space-5:24px;--bq-space-6:32px;--bq-space-7:48px;--bq-space-8:64px;--bq-space-9:96px;color-scheme:light}
*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:var(--bq-paper);color:var(--bq-ink);font:16px/1.8 var(--bq-font);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}a:hover{color:var(--bq-line)}button{font:inherit}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--bq-accent);outline-offset:5px}h1,h2,p,figure{margin:0}h1,h2{font-weight:600;line-height:1.4}h1{font-size:36px;letter-spacing:-1.5px}h2{font-size:23px;letter-spacing:-.5px}p{overflow-wrap:break-word}code{font-family:var(--bq-mono)}button{cursor:pointer}main{display:block}::selection{background:var(--bq-line);color:var(--bq-surface)}.bq-skip{position:absolute;left:16px;top:-100px;z-index:5;padding:10px 20px;background:var(--bq-surface)}.bq-skip:focus{top:12px}.bq-header{border-bottom:1px solid var(--bq-rule)}.bq-header-inner{max-width:1120px;margin:auto;padding:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 20px;align-items:center}.bq-brand{display:flex;align-items:center;gap:11px;text-decoration:none;min-height:44px}.bq-wordmark{font:750 25px/1.2 var(--bq-font);letter-spacing:2px;text-decoration:none}.bq-mark{position:relative;width:23px;height:26px;display:block}.bq-mark:before{content:"";position:absolute;top:0;bottom:0;left:10px;width:3px;background:var(--bq-line)}.bq-mark:after{content:"";position:absolute;left:4px;top:6px;width:11px;height:11px;border:3px solid var(--bq-line);border-radius:50%;background:var(--bq-paper)}.bq-nav{display:flex;gap:24px}.bq-nav a{display:flex;align-items:center;min-height:44px;text-decoration:none;font-size:14px}.bq-nav a[aria-current]{color:var(--bq-line);text-decoration:underline;text-underline-offset:9px}.bq-home{max-width:1120px;margin:auto;padding:0 20px}.bq-hero{padding:48px 0;display:grid;gap:32px}.bq-eyebrow{font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--bq-line)}.bq-route-symbol{display:inline-block;width:23px;height:9px;border-top:2px solid var(--bq-line);margin-right:8px;position:relative}.bq-route-symbol:after{content:"";position:absolute;right:0;top:-5px;height:8px;width:8px;border-radius:50%;background:var(--bq-line)}.bq-hero h1{font-size:40px;line-height:1.4;margin:21px 0;color:var(--bq-line);letter-spacing:-2px}.bq-lead{font-size:17px;line-height:1.95;color:var(--bq-muted)}.bq-ticket{background:var(--bq-surface);border:1px solid var(--bq-rule);border-top:4px solid var(--bq-line);position:relative;align-self:center}.bq-ticket-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:19px 22px 0}.bq-label{font-size:13px;font-weight:600;letter-spacing:1px;color:var(--bq-line)}.bq-ticket-tag{border:1px solid var(--bq-rule);padding:2px 8px;font-size:12px;color:var(--bq-muted)}.bq-ticket-body{padding:23px 22px 18px}.bq-small{font-size:12px;color:var(--bq-muted)}.bq-code-row{display:flex;align-items:center;justify-content:space-between;gap:16px}.bq-code{font:500 36px/1.6 var(--bq-mono);letter-spacing:2px;color:var(--bq-line);user-select:all}.bq-copy{min-width:60px;min-height:44px;padding:6px 13px;border:1px solid var(--bq-rule);background:transparent;border-radius:3px;font-size:13px;color:var(--bq-ink)}.bq-copy:hover{background:var(--bq-line-soft);border-color:var(--bq-line)}.bq-copy-status{font-size:12px;color:var(--bq-line);display:block}.bq-copy-status:empty{display:none}.bq-ticket-note{font-size:13px;color:var(--bq-muted);margin-top:10px}.bq-ticket-action{position:relative;padding:22px;border-top:1px dashed var(--bq-rule)}.bq-ticket-action:before,.bq-ticket-action:after{content:"";position:absolute;top:-9px;width:16px;height:16px;background:var(--bq-paper);border:1px solid var(--bq-rule);border-radius:50%}.bq-ticket-action:before{left:-9px;border-left-color:transparent;border-bottom-color:transparent;transform:rotate(45deg)}.bq-ticket-action:after{right:-9px;border-right-color:transparent;border-top-color:transparent;transform:rotate(45deg)}.bq-button{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--bq-line);color:var(--bq-surface);text-decoration:none;padding:13px 19px;min-height:50px;font-size:15px;font-weight:600;border-radius:2px}.bq-button:hover{background:#513148;color:var(--bq-surface)}.bq-button span{font-size:22px;line-height:1}.bq-ticket-action p{font-size:12px;line-height:1.8;color:var(--bq-muted);margin-top:13px}.bq-route-section{border-top:1px solid var(--bq-rule);padding:36px 0 42px;display:grid;gap:24px;scroll-margin-top:20px}.bq-section-intro h2{font-size:26px;margin:12px 0}.bq-section-intro>p:not(.bq-eyebrow){font-size:16px;color:var(--bq-muted)}.bq-route-key{margin-top:23px;font-size:12px;color:var(--bq-line);display:flex;align-items:center;gap:8px}.bq-key-dot{width:9px;height:9px;border:2px solid var(--bq-line);border-radius:50%;display:inline-block}.bq-section-intro .bq-route-alternative{margin-top:24px;font-size:12px}.bq-line{list-style:none;margin:0;padding:0}.bq-station{position:relative}.bq-station:before{content:"";position:absolute;width:2px;top:0;bottom:0;left:19px;background:var(--bq-line)}.bq-station:first-child:before{top:50%}.bq-station:last-child:before{bottom:50%}.bq-station a{position:relative;display:flex;align-items:center;gap:16px;min-height:88px;text-decoration:none;padding:12px 0}.bq-station-number{flex:0 0 40px;display:flex;align-items:center;justify-content:center;height:40px;border:2px solid var(--bq-line);border-radius:50%;background:var(--bq-paper);color:var(--bq-line);font:500 14px/1 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p{font-size:16px;color:var(--bq-muted)}.bq-text-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px;font-weight:600;margin-top:8px;color:var(--bq-accent);gap:20px}.bq-footer{max-width:1080px;margin:auto;padding:30px 20px 20px;border-top:1px solid var(--bq-rule)}.bq-footer-top{display:flex;flex-direction:column;gap:16px}.bq-footer .bq-wordmark{font-size:19px;display:inline-flex;align-items:center;min-height:44px;color:var(--bq-line)}.bq-footer p{font-size:12px;line-height:1.9;color:var(--bq-muted);margin-top:6px}.bq-footer-nav{display:flex;flex-wrap:wrap;gap:0 20px}.bq-footer-nav a,.bq-footer-bottom a{display:inline-flex;align-items:center;min-height:44px;font-size:12px;text-decoration:none}.bq-footer-bottom{border-top:1px solid var(--bq-rule);margin-top:24px;padding-top:15px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0 16px;font-size:12px;color:var(--bq-muted)}.bq-chapter-layout{max-width:1120px;margin:auto;padding:28px 20px 56px;display:grid;gap:32px}.bq-rail{min-width:0}.bq-rail>.bq-eyebrow{margin-bottom:12px}.bq-line-compact{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));row-gap:8px}.bq-line-compact .bq-station:before{height:2px;width:auto;left:0;right:0;top:22px;bottom:auto}.bq-line-compact .bq-station:first-child:before{left:50%}.bq-line-compact .bq-station:last-child:before{right:50%}.bq-line-compact .bq-station a{padding:0;min-height:44px;justify-content:center;gap:0}.bq-line-compact .bq-station-number{width:28px;height:28px;flex-basis:28px;font-size:12px}.bq-line-compact .bq-station-text,.bq-line-compact .bq-station-state,.bq-line-compact .bq-station a:after,.bq-rail-note{display:none}.bq-line .bq-is-before .bq-station-number{background:var(--bq-line-soft);border-style:dashed}.bq-line .bq-is-current .bq-station-number{background:var(--bq-line);color:var(--bq-surface);outline:3px solid var(--bq-paper);box-shadow:0 0 0 4px var(--bq-line)}.bq-is-current .bq-station-title{color:var(--bq-line)}.bq-article{max-width:760px;min-width:0}.bq-location{font-size:13px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;color:var(--bq-muted);margin-bottom:26px}.bq-location a{min-height:44px;display:inline-flex;align-items:center}.bq-location b{font-family:var(--bq-mono);color:var(--bq-line)}.bq-article-head h1{margin:12px 0 17px;color:var(--bq-line)}.bq-article-head{padding-bottom:32px;border-bottom:1px solid var(--bq-rule);margin-bottom:32px}.bq-checklist{background:var(--bq-line-soft);padding:22px 24px;margin-bottom:40px}.bq-checklist h2{font-size:17px;margin-bottom:12px}.bq-checklist ul{padding:0;margin:0;list-style:none}.bq-checklist li{padding-left:24px;position:relative;margin:7px 0}.bq-checklist li:before{content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border:1px solid var(--bq-line)}.bq-step{margin:36px 0}.bq-step h2{margin-bottom:18px;font-size:22px}.bq-step h2>span{color:var(--bq-line);font-size:14px;display:inline-flex;width:30px;height:30px;border:1px solid var(--bq-rule);align-items:center;justify-content:center;vertical-align:2px;margin-right:6px}.bq-step>p+p{margin-top:18px}.bq-callout{border-left:3px solid var(--bq-accent);background:var(--bq-accent-soft);margin:24px 0;padding:18px 20px}.bq-callout strong{color:var(--bq-accent);font-size:13px;letter-spacing:2px}.bq-callout p{margin-top:6px}.bq-callout-tip{background:var(--bq-line-soft);border-color:var(--bq-line)}.bq-callout-tip strong{color:var(--bq-line)}.bq-table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:16px;margin:25px 0}.bq-table caption{text-align:left;font-size:13px;color:var(--bq-muted);padding-bottom:10px}.bq-table th,.bq-table td{padding:13px 8px;text-align:left;vertical-align:top;border-bottom:1px solid var(--bq-rule);overflow-wrap:anywhere}.bq-table th:first-child{width:24%}.bq-table thead{background:var(--bq-line-soft)}.bq-table thead th{font-size:13px}.bq-table tbody th{font-weight:500}.bq-figure{margin:28px 0}.bq-figure figcaption{font-size:12px;line-height:1.8;color:var(--bq-muted);margin-top:10px}.bq-ticket-compact{border-top:1px dashed var(--bq-rule);border-bottom:1px dashed var(--bq-rule);padding:19px 0;margin:24px 0;max-width:420px}.bq-ticket-compact .bq-code{font-size:28px}.bq-ticket-compact p{font-size:12px;color:var(--bq-muted);margin-top:8px}.bq-ticket-compact p a{display:inline-flex;min-height:44px;align-items:center}.bq-faq{margin-top:42px}.bq-faq h2{margin-bottom:18px}.bq-faq details{border-bottom:1px solid var(--bq-rule)}.bq-faq summary{min-height:60px;cursor:pointer;padding:16px 30px 16px 0;position:relative;list-style:none;font-weight:500}.bq-faq summary::-webkit-details-marker{display:none}.bq-faq summary:after{content:"＋";position:absolute;right:0;color:var(--bq-line)}.bq-faq details[open] summary:after{content:"−"}.bq-faq details p{padding:0 0 20px;color:var(--bq-muted)}.bq-source{margin-top:32px;color:var(--bq-muted);font-size:12px}.bq-source a{display:inline-flex;min-height:44px;align-items:center}.bq-pagination{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--bq-rule);gap:24px;margin-top:40px;padding-top:24px}.bq-pagination a{display:flex;flex-direction:column;text-decoration:none;min-height:64px}.bq-pagination a:last-child{text-align:right}.bq-pagination span{font-size:12px;color:var(--bq-muted)}.bq-pagination strong{font-size:16px;font-weight:500;color:var(--bq-line);margin-top:5px}.bq-plain{max-width:800px;padding:32px 20px 64px;margin:auto}.bq-back{display:inline-flex;align-items:center;min-height:44px;font-size:13px;color:var(--bq-muted);margin-bottom:26px}.bq-plain h1{color:var(--bq-line);margin:14px 0 24px}.bq-plain h2{margin:40px 0 20px}.bq-plain article>p:not(.bq-eyebrow){margin-bottom:22px}.bq-plain article>p a,.bq-definitions a{display:inline-flex;align-items:center;min-height:44px;overflow-wrap:anywhere;word-break:break-word}.bq-definitions{margin:0}.bq-definitions>div{padding:22px 0;border-top:1px solid var(--bq-rule)}.bq-definitions dt{color:var(--bq-line);font-size:14px;font-weight:600;margin-bottom:8px}.bq-definitions dd{margin:0}.bq-not-found{max-width:800px;margin:0 auto;min-height:60vh;padding:60px 20px 80px}.bq-not-found h1{color:var(--bq-line);margin:18px 0}.bq-not-found .bq-button{width:max-content;margin-top:30px}.bq-lost-line{height:64px;width:190px;position:relative;margin-bottom:32px}.bq-lost-line:before{content:"";position:absolute;top:30px;left:0;width:145px;border-top:3px solid var(--bq-line)}.bq-lost-line:after{content:"";position:absolute;top:30px;left:150px;width:40px;border-top:3px dashed var(--bq-rule)}.bq-lost-line span{position:absolute;left:70px;top:19px;width:25px;height:25px;border:3px solid var(--bq-line);border-radius:50%;background:var(--bq-paper);z-index:1}
@media(min-width:600px){.bq-header-inner{flex-wrap:nowrap}.bq-hero h1{font-size:56px}.bq-hero{gap:40px}.bq-ticket{max-width:440px;width:100%}.bq-before{grid-template-columns:130px 1fr;gap:24px;padding:32px}.bq-station-arrow{display:block}.bq-station a{gap:20px}.bq-footer-top{flex-direction:row;justify-content:space-between;gap:30px}.bq-footer-nav{align-content:flex-start;gap:0 22px}.bq-definitions>div{display:grid;grid-template-columns:130px 1fr;gap:24px}.bq-definitions dt{margin:0}.bq-table th,.bq-table td{padding:14px 16px}.bq-plain{padding-top:48px}.bq-not-found h1{font-size:44px}}
@media(min-width:960px){.bq-header-inner{padding:22px 20px}.bq-nav{gap:34px}.bq-hero{grid-template-columns:1fr 400px;gap:64px;padding:70px 0 72px}.bq-hero h1{font-size:58px;margin:24px 0}.bq-hero .bq-lead{max-width:460px}.bq-ticket-head{padding:21px 28px 0}.bq-ticket-body{padding:23px 28px 19px}.bq-ticket-action{padding:24px 28px}.bq-code{font-size:42px}.bq-route-section{grid-template-columns:260px 1fr;gap:64px;padding:48px 0 56px}.bq-section-intro{padding-top:10px}.bq-section-intro h2{font-size:28px}.bq-station a{min-height:90px}.bq-before{margin-bottom:72px;grid-template-columns:260px 1fr;gap:32px}.bq-footer{padding:34px 0 20px}.bq-chapter-layout{grid-template-columns:230px minmax(0,1fr);gap:64px;padding-top:46px;padding-bottom:80px}.bq-rail{align-self:start;position:sticky;top:28px}.bq-line-compact{display:block}.bq-line-compact .bq-station:before{width:2px;height:auto;left:15px;top:0;bottom:0;right:auto}.bq-line-compact .bq-station:first-child:before{top:50%;left:15px}.bq-line-compact .bq-station:last-child:before{bottom:50%;right:auto}.bq-line-compact .bq-station a{justify-content:flex-start;gap:12px;min-height:60px}.bq-line-compact .bq-station-number{flex-basis:32px;width:32px;height:32px}.bq-line-compact .bq-station-text{display:flex}.bq-line-compact .bq-station-title{font-size:14px;font-weight:500}.bq-line-compact .bq-station-state{display:block;font-size:12px}.bq-rail-note{display:block;font-size:12px;color:var(--bq-muted);margin-top:26px;border-top:1px solid var(--bq-rule);padding-top:20px}.bq-article-head h1{font-size:42px}.bq-location{margin-bottom:30px}.bq-plain{padding-top:52px;padding-bottom:88px}.bq-plain h1{font-size:42px}.bq-not-found{padding-top:76px}.bq-not-found .bq-lead{font-size:18px}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s,color .15s}}

@media(max-width:599px){.bq-line-compact .bq-station:nth-child(4):before{right:50%}.bq-line-compact .bq-station:nth-child(5):before{left:50%}}
@media(min-width:600px) and (max-width:959px){.bq-line-compact{grid-template-columns:repeat(8,minmax(0,1fr))}}
.bq-nav a,.bq-footer-nav a{min-width:44px;justify-content:center}
.bq-wordmark{letter-spacing:1px}
.bq-hero h1{font-size:34px;letter-spacing:-1px}
.bq-checked{margin-top:14px;font-size:13px;color:var(--bq-muted)}
.bq-hero .bq-checked{margin-top:22px}
.bq-ticket-note+.bq-ticket-note{margin-top:6px}
.bq-ticket-action p a{color:var(--bq-line)}
.bq-route-section .bq-route-alternative{margin-top:12px;font-size:14px;color:var(--bq-muted)}
.bq-before h2.bq-note-label{font-size:13px;letter-spacing:1px;margin:0;color:var(--bq-accent)}
.bq-before p a{color:var(--bq-accent)}
.bq-intro{margin-bottom:8px}
.bq-intro>p,.bq-step>p{margin:0 0 18px}
.bq-step>p:last-child{margin-bottom:0}
.bq-list{margin:18px 0;padding-left:1.5em}
.bq-list li{margin:8px 0;padding-left:2px}
.bq-list li::marker{color:var(--bq-line)}
ol.bq-list li::marker{font-family:var(--bq-mono);font-size:14px}
.bq-article :not(pre)>code:not(.bq-code){font-size:.92em;background:var(--bq-line-soft);padding:1px 5px;border-radius:2px;overflow-wrap:anywhere}
.bq-article p a,.bq-article li a,.bq-article td a{color:var(--bq-line)}
.bq-figure img{display:block;max-width:100%;height:auto;border:1px solid var(--bq-rule);background:var(--bq-surface)}
.bq-plain .bq-article>.bq-list,.bq-plain .bq-article>.bq-table{margin:0 0 22px}
.bq-plain .bq-checked{margin:-8px 0 30px}
.bq-plain .bq-article>p a{display:inline;min-height:0}
.bq-source{border-top:1px solid var(--bq-rule);padding-top:20px}
.bq-source h2{font-size:14px;letter-spacing:0;margin:0 0 4px;color:var(--bq-ink)}
.bq-source ul{list-style:none;margin:0;padding:0}
.bq-source li{margin:0}
.bq-source a{color:var(--bq-muted)}
.bq-plain .bq-source h2{margin:0 0 4px;font-size:14px}
.bq-home>.bq-source{margin:0 0 56px}
.bq-pagination .bq-prev{grid-column:1;text-align:left}
.bq-pagination .bq-next{grid-column:2;text-align:right}
@media(max-width:599px){.bq-table{font-size:13px;line-height:1.65}.bq-table th,.bq-table td{padding:10px 4px;overflow-wrap:break-word}.bq-table th:first-child{width:19%}}
@media(min-width:600px){.bq-hero h1{font-size:44px}}
@media(min-width:960px){.bq-hero h1{font-size:48px;letter-spacing:-1.5px}.bq-home>.bq-source{margin-bottom:72px}}
@media(min-width:700px){.bq-figure img{max-width:600px}}