:root{color-scheme:light;--ink:#071718;--slate:#273946;--slate-2:#384955;--paper:#f7f9f9;--surface:#fff;--surface-2:#f1f5f5;--surface-3:#e8eeee;--mist:#e6e6e8;--line:#ccd5d7;--line-strong:#a9babc;--foam:#d9f5f3;--sea:#087f83;--sea-dark:#075e62;--coral:#b7412f;--gold:#9b6a18;--gold-bright:#e2a649;--text:#071718;--text-soft:#293b3d;--muted:#5a6f71;--display:"Cinzel",Georgia,"Times New Roman",serif;--body:"Source Sans 3",Inter,"Noto Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--shadow:0 14px 38px #0717181f}html[data-theme=dark]{color-scheme:dark;--paper:#071718;--surface:#102628;--surface-2:#142d2f;--surface-3:#1a3437;--mist:#1d3639;--line:#395255;--line-strong:#526a70;--text:#f7f9f9;--text-soft:#d0dcdd;--muted:#a9bcbe;--sea-dark:#83d2cf;--shadow:0 14px 38px #00000052}:lang(ja){--display:"Cinzel","Noto Sans JP",Georgia,serif;--body:"Source Sans 3","Noto Sans JP",system-ui,sans-serif}:lang(ko){--display:"Cinzel","Noto Sans KR",Georgia,serif;--body:"Source Sans 3","Noto Sans KR",system-ui,sans-serif}:lang(zh-CN){--display:"Cinzel","Noto Sans SC",Georgia,serif;--body:"Source Sans 3","Noto Sans SC",system-ui,sans-serif}:lang(zh-Hant){--display:"Cinzel","Noto Sans TC",Georgia,serif;--body:"Source Sans 3","Noto Sans TC",system-ui,sans-serif}:lang(th){--display:"Cinzel","Noto Sans Thai",Georgia,serif;--body:"Source Sans 3","Noto Sans Thai",system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}html,body{margin:0;overflow-x:hidden}body{background:var(--paper);min-width:320px;color:var(--text);font-family:var(--body);font-size:16px;line-height:1.62}img{max-width:100%;height:auto;display:block}a{color:inherit;text-underline-offset:.2em}button,input{font:inherit}button{color:inherit}svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:1.2rem;height:1.2rem;display:block}.sr-only{clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.skip-link{z-index:200;background:var(--surface);border:2px solid var(--sea);padding:.6rem .85rem;font-weight:800;position:fixed;top:8px;left:8px;transform:translateY(-180%)}.skip-link:focus{transform:none}.container{width:min(1184px,100% - 40px);margin-inline:auto}.eyebrow{color:var(--sea-dark);letter-spacing:.14em;text-transform:uppercase;margin:0 0 .55rem;font-size:.74rem;font-weight:850}h1,h2,h3{font-family:var(--display);text-wrap:balance;line-height:1.13}h1{letter-spacing:-.025em;margin:0;font-size:clamp(2.2rem,4.4vw,3.65rem)}h2{letter-spacing:-.018em;margin:0;font-size:clamp(1.72rem,3vw,2.45rem)}h3{margin:0;font-size:1.25rem}p{margin:0 0 1rem}.site-header{z-index:80;color:#f7f9f9;background:#071718;border-bottom:3px solid #158f91;position:sticky;top:0}.header-inner{align-items:center;gap:1.25rem;width:min(1248px,100% - 32px);height:68px;margin:auto;display:flex}.brand{align-items:center;gap:.65rem;min-width:218px;text-decoration:none;display:inline-flex}.brand img{width:38px;height:38px}.brand-name{font-family:var(--display);letter-spacing:.04em;font-size:1.05rem;font-weight:700;line-height:1.05}.brand-name small{color:#a8cbcd;font-family:var(--body);letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;margin-top:.25rem;font-size:.58rem;font-weight:800;display:block}.top-nav{white-space:nowrap;align-items:center;gap:2px;margin-left:auto;display:flex}.top-nav a{color:#dbe8e9;border-radius:3px;padding:.55rem .6rem;font-size:.82rem;font-weight:700;text-decoration:none}.top-nav a:hover,.top-nav a:focus-visible,.top-nav a[aria-current=page]{color:#fff;background:#273946}.top-nav[data-measuring=true]{visibility:hidden!important;pointer-events:none!important;display:flex!important;position:absolute!important}.header-actions{align-items:center;gap:.4rem;margin-left:.45rem;display:flex}.header-icon,.menu-button,.locale-toggle{color:#fff;cursor:pointer;background:0 0;border:1px solid #526a70;border-radius:3px;height:38px}.header-icon{place-items:center;width:38px;padding:0;display:grid}.header-icon:hover,.header-icon:focus-visible,.menu-button:hover,.menu-button:focus-visible,.locale-toggle:hover,.locale-toggle:focus-visible{background:#273946;border-color:#83d2cf}.locale-menu{position:relative}.locale-toggle{letter-spacing:.06em;place-items:center;min-width:44px;padding:0 .55rem;font-size:.7rem;font-weight:850;display:grid}.locale-popover{z-index:90;width:220px;max-height:min(420px,70vh);color:var(--text);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);padding:.7rem;position:absolute;top:calc(100% + .65rem);right:0;overflow:auto}.locale-popover strong{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;padding:.35rem .55rem .55rem;font-size:.68rem;display:block}.locale-popover a{border-bottom:1px solid var(--line);padding:.55rem;font-size:.86rem;text-decoration:none;display:block}.locale-popover a[aria-current=page]{color:var(--sea-dark);background:var(--surface-2);font-weight:800}.menu-button{width:42px;padding:0;font-size:1.1rem;display:none}.mobile-nav{background:#071718;border-top:1px solid #33494b;padding:.5rem 1rem 1rem;display:none}.mobile-nav[data-open=true]{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 .9rem;display:grid}.mobile-nav a{color:#f7f9f9;border-bottom:1px solid #33494b;padding:.65rem .15rem;font-size:.88rem;text-decoration:none}.site-header[data-collapsed=true] .top-nav{display:none}.site-header[data-collapsed=true] .header-actions{margin-left:auto}.site-header[data-collapsed=true] .menu-button{place-items:center;display:grid}.search-dialog{width:min(760px,100% - 32px);max-height:min(700px,100vh - 40px);color:var(--text);background:var(--surface);border:1px solid var(--line-strong);padding:0;box-shadow:0 28px 90px #00000057}.search-dialog::backdrop{backdrop-filter:blur(3px);background:#071718b8}.search-panel{padding:1.25rem}.search-heading{border-bottom:2px solid var(--text);justify-content:space-between;align-items:center;gap:1rem;padding-bottom:1rem;display:flex}.search-heading h2{font-size:1.55rem}.search-close{border:1px solid var(--line);background:var(--surface-2);cursor:pointer;width:38px;height:38px;font-size:1.55rem}.search-field{margin:1rem 0;display:block}.search-field input{width:100%;color:var(--text);background:var(--paper);border:1px solid var(--line-strong);outline:none;padding:.85rem 1rem}.search-field input:focus{border-color:var(--sea);box-shadow:0 0 0 3px #087f832e}.search-results{max-height:430px;margin:0;padding:0;list-style:none;overflow:auto}.search-results li{border-top:1px solid var(--line)}.search-results a{gap:.22rem;padding:.8rem;text-decoration:none;display:grid}.search-results a:hover,.search-results a:focus-visible{background:var(--surface-2)}.search-results span{color:var(--muted);font-size:.82rem}.search-empty{text-align:center;color:var(--muted);padding:2rem}.hero{padding-top:1.5rem}.hero-grid{background:var(--surface);border:1px solid var(--line);min-height:390px;box-shadow:var(--shadow);grid-template-columns:minmax(330px,.74fr) minmax(0,1.26fr);display:grid}.hero-copy{flex-direction:column;justify-content:center;padding:2.35rem 2.5rem 2rem;display:flex}.hero-copy .lede{max-width:52ch;color:var(--text-soft);margin:1rem 0 0;font-size:1.1rem}.hero-media{background:var(--slate);min-height:390px;position:relative;overflow:hidden}.hero-media .media-figure,.route-hero-media .media-figure{height:100%;margin:0}.hero-media img,.route-hero-media img{object-fit:cover;width:100%;height:100%}.hero-media:after{content:"";pointer-events:none;position:absolute;inset:0;box-shadow:inset 34px 0 42px #0717182e}.hero-media figcaption,.route-hero-media figcaption{z-index:2;color:#fff;background:#071718e0;max-width:calc(100% - 1.5rem);margin:0;padding:.36rem .55rem;font-size:.68rem;position:absolute;bottom:.65rem;right:.75rem}.hero-media figcaption a,.route-hero-media figcaption a{color:#d9f5f3}.facts{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));margin:1.2rem 0 0;display:grid}.fact{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:66px;padding:.62rem .72rem}.fact dt{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.62rem;font-weight:850}.fact dd{margin:.18rem 0 0;font-size:.79rem;font-weight:750;line-height:1.3}.content-band{padding:2.8rem 0 3rem}.intro-row{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:3.5rem;display:grid}.intro-text{max-width:72ch;color:var(--text-soft);font-size:1.1rem}.quick-index{border-left:3px solid var(--sea);padding-left:1.1rem}.quick-index strong{letter-spacing:.1em;text-transform:uppercase;margin-bottom:.5rem;font-size:.72rem;display:block}.quick-index a{color:var(--sea-dark);padding:.25rem 0;font-size:.86rem;display:block}.section-head{border-bottom:2px solid var(--text);justify-content:space-between;align-items:end;gap:1.5rem;margin-bottom:1.5rem;padding-bottom:.85rem;display:flex}.section-head p{max-width:46ch;color:var(--muted);text-align:right;margin:0;font-size:.86rem}.task-hubs{padding-bottom:3.5rem}.hub-layout{grid-template-columns:1.1fr .9fr;gap:1.25rem 3rem;display:grid}.hub-primary{color:#f7f9f9;background:var(--slate);border-top:5px solid var(--gold-bright);grid-row:span 2;padding:1.5rem 1.65rem}.hub-primary p{color:#cbd9da;margin-top:.5rem}.topic-list{margin:1.15rem 0 0;padding:0;list-style:none}.topic-list a{color:#fff;border-bottom:1px solid #50616b;justify-content:space-between;gap:1rem;padding:.72rem 0;text-decoration:none;display:flex}.topic-list a:after{content:"→";color:#7bd2d0}.hub-link{border-bottom:1px solid var(--line);grid-template-columns:122px minmax(0,1fr);align-items:start;gap:1.1rem;padding:1.05rem 0;text-decoration:none;display:grid}.hub-link b{color:var(--sea-dark);letter-spacing:.08em;text-transform:uppercase;font-size:.72rem}.hub-link span{color:var(--text-soft)}.ledger-wrap{color:#fff;background:#071718;padding:3.2rem 0 3.5rem}.ledger-wrap .eyebrow{color:#83d2cf}.ledger-wrap .section-head{border-color:#64777b}.ledger-wrap .section-head p{color:#b9c8c9}.chain{grid-template-columns:1fr 42px 1fr 42px 1fr;align-items:stretch;display:grid}.chain-stage{background:#102628;border:1px solid #536a6e;padding:1.35rem}.chain-stage small{color:#7fc5c4;letter-spacing:.13em;text-transform:uppercase;margin-bottom:.8rem;font-size:.67rem;font-weight:850;display:block}.chain-stage h3{color:#fff}.chain-stage p{color:#c9d5d6;margin:.55rem 0 0;font-size:.86rem}.goods{flex-wrap:wrap;gap:.38rem;margin-top:.9rem;display:flex}.goods span{color:#e8efef;border:1px solid #50696c;padding:.25rem .48rem;font-size:.72rem}.chain-arrow{color:#e4ad4e;place-items:center;font-size:1.55rem;display:grid}.table-section{padding:3.6rem 0 3.2rem}.table-scroller{border:1px solid var(--line);background:var(--surface);overflow-x:auto}table{border-collapse:collapse;text-align:left;width:100%}th{color:#fff;background:var(--slate);letter-spacing:.08em;text-transform:uppercase;padding:.7rem .9rem;font-size:.67rem}td{border-bottom:1px solid var(--line);vertical-align:top;padding:.8rem .9rem}tr:last-child td{border-bottom:0}tbody tr:nth-child(2n){background:var(--surface-2)}.feature{border-top:1px solid var(--line);padding:3.5rem 0 4.5rem}.feature-grid{grid-template-columns:minmax(0,1fr) minmax(330px,.76fr);align-items:start;gap:4rem;display:grid}.feature-grid>*{min-width:0}.prose{min-width:0;max-width:68ch}.prose p{color:var(--text-soft)}.prose h2{margin-bottom:1.2rem}.prose h3{border-left:3px solid var(--sea);margin:1.9rem 0 .7rem;padding-left:.8rem}.media-figure{margin:1.8rem 0;position:relative}.media-figure img{aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line)}.media-figure figcaption{color:var(--muted);margin-top:.48rem;font-size:.73rem}.media-figure figcaption a{color:var(--sea-dark)}.route-hero{padding-top:1.5rem}.route-hero-card{color:#fff;background:var(--slate);min-height:300px;box-shadow:var(--shadow);grid-template-columns:minmax(0,.86fr) minmax(440px,1.14fr);display:grid}.route-hero-copy{align-self:center;padding:2.35rem 2.6rem}.route-hero .eyebrow{color:#8fd0ce}.route-hero h1{max-width:13ch;font-size:clamp(2.3rem,4vw,3.4rem)}.route-hero-copy p{color:#d3dfe0;max-width:48ch;margin:1rem 0 0}.route-hero-media{min-height:300px;position:relative;overflow:hidden}.route-hero-media:after{content:"";pointer-events:none;position:absolute;inset:0;box-shadow:inset 26px 0 32px #0717182e}.breadcrumbs{color:var(--muted);flex-wrap:wrap;gap:.55rem;margin-bottom:1rem;font-size:.78rem;display:flex}.breadcrumbs a{color:var(--sea-dark)}.article-shell{grid-template-columns:230px minmax(0,68ch);justify-content:center;align-items:start;gap:3.75rem;width:min(1120px,100% - 40px);margin:3rem auto 4.5rem;display:grid}.toc-shell{min-width:0}.toc{border:1px solid var(--line);background:var(--surface);width:230px;padding:1rem;position:sticky;top:94px}.toc strong{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin-bottom:.65rem;font-size:.67rem;display:block}.toc a{border-bottom:1px solid var(--mist);color:var(--sea-dark);text-overflow:ellipsis;white-space:nowrap;padding:.48rem 0;font-size:.79rem;text-decoration:none;display:block;overflow:hidden}.toc .back-top{border:0;margin-top:.5rem;font-weight:800}.toc-toggle{border:1px solid var(--line);width:100%;color:var(--text);background:var(--surface);text-align:left;justify-content:space-between;align-items:center;padding:.7rem .85rem;font-weight:800;display:none}.article{min-width:0}.article .intro{color:var(--text-soft);font-size:1.16rem}.article h2{border-top:3px solid var(--text);margin:2.9rem 0 1rem;padding-top:.5rem;font-size:1.95rem}.article h3{margin:1.7rem 0 .7rem}.article ul,.article ol{padding-left:1.35rem}.article li+li{margin-top:.45rem}.article .table-scroller{margin:1.5rem 0}.article .ad-slot-wrap,.article .ad-reservation{margin:2rem 0}.callout{border-left:4px solid var(--gold-bright);background:var(--surface-2);margin:1.5rem 0;padding:1rem 1.1rem}.quick-facts{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));margin:1.5rem 0 0;display:grid}.quick-facts div{border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);padding:.72rem}.quick-facts dt{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.64rem;font-weight:800}.quick-facts dd{margin:.25rem 0 0;font-weight:750}.faq-section{border-top:3px solid var(--text);margin-top:3.2rem;padding-top:.75rem}.faq-section h2{border:0;margin:0 0 1rem;padding:0}.faq-item{border-top:1px solid var(--line);padding:1rem 0}.faq-item h3{font-family:var(--body);font-size:1rem}.faq-item p{margin:.45rem 0 0}.source-ledger{background:var(--surface-2);border-top:4px solid var(--sea);margin-top:3.3rem;padding:1.15rem}.source-ledger h2{border:0!important;margin:0 0 .8rem!important;padding:0!important;font-size:1.35rem!important}.source-ledger ul{margin:0;padding:0;list-style:none}.source-ledger li{border-top:1px solid var(--line);justify-content:space-between;gap:1rem;padding:.6rem 0;display:flex}.source-ledger li a{color:var(--sea-dark);font-weight:750}.source-ledger li span{color:var(--muted);font-size:.72rem}.source-ledger time{color:var(--muted);margin-top:.8rem;font:700 .68rem ui-monospace,SFMono-Regular,Menlo,monospace;display:block}.related-pages{margin-top:3rem}.related-pages h2{border:0!important;margin:0 0 1rem!important;padding:0!important;font-size:1.4rem!important}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;display:grid}.related-card{border:1px solid var(--line);background:var(--surface);padding:1rem;text-decoration:none}.related-card strong{font-family:var(--display);font-size:1.05rem;display:block}.related-card span{color:var(--muted);margin-top:.35rem;font-size:.78rem;display:block}.related-card:hover,.related-card:focus-visible{border-color:var(--sea);box-shadow:0 5px 18px #0717181a}.video-section{margin:3rem 0}.video-section h2{margin-bottom:1rem!important}.legal-shell{width:min(850px,100% - 40px);margin:3rem auto 4.5rem}.legal-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);padding:clamp(1.25rem,4vw,3rem)}.legal-card .intro{color:var(--text-soft);margin-top:1rem;font-size:1.08rem}.legal-card h2{border-top:2px solid var(--text);margin:2.4rem 0 1rem;padding-top:.65rem;font-size:1.7rem}.contact-email{color:#fff;background:var(--sea-dark);margin:1rem 0;padding:.75rem 1rem;font-weight:800;text-decoration:none;display:inline-block}.not-found{text-align:center;place-items:center;min-height:62vh;display:grid}.not-found-inner{background:var(--surface);border:1px solid var(--line);width:min(680px,100% - 40px);padding:3rem}.not-found-code{color:var(--coral);font:800 5rem/1 var(--display);display:block}.site-footer{color:#b8c7c8;background:var(--slate);padding:2rem 0 2.6rem}.footer-inner{grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(140px,.55fr));gap:2.5rem;width:min(1184px,100% - 40px);margin:auto;display:grid}.footer-brand{color:#fff;align-items:center;gap:.6rem;text-decoration:none;display:inline-flex}.footer-brand img{width:36px;height:36px}.footer-statement p{max-width:62ch;margin:.65rem 0 0;font-size:.78rem}.footer-copy{opacity:.8}.footer-nav{flex-direction:column;gap:.45rem;display:flex}.footer-nav strong{color:#fff;font-family:var(--display);margin-bottom:.25rem}.footer-nav a{font-size:.8rem;text-decoration:none}.footer-nav a:hover{text-decoration:underline}@media (width<=1100px){.brand{min-width:190px}.header-inner{gap:.6rem}.top-nav a{padding:.55rem .45rem}}@media (width<=840px){.header-inner{width:calc(100% - 24px)}.top-nav{display:none}.header-actions{margin-left:auto}.menu-button{place-items:center;display:grid}.hero-grid,.route-hero-card{grid-template-columns:1fr}.hero-copy,.route-hero-copy{padding:1.85rem 1.75rem}.hero-media{grid-row:1;min-height:330px}.route-hero-media{grid-row:1;min-height:280px}.intro-row,.feature-grid{grid-template-columns:1fr;gap:1.75rem}.quick-index{background:var(--mist);border:0;padding:.9rem 1.05rem}.hub-layout{grid-template-columns:1fr}.hub-primary{grid-row:auto}.article-shell{grid-template-columns:1fr;gap:1.2rem}.toc-toggle{display:flex}.toc-toggle:after{content:"+";font-size:1.2rem}.toc-toggle[aria-expanded=true]:after{content:"−"}.toc{width:100%;display:none;position:static}.toc[data-open=true]{display:block}.footer-inner{grid-template-columns:1.5fr 1fr 1fr;gap:1.5rem}}@media (width<=560px){body{font-size:15px}.container,.article-shell,.legal-shell{width:calc(100% - 32px)}.header-inner{height:61px}.brand{min-width:0}.brand img{width:32px;height:32px}.brand-name{font-size:.9rem}.brand-name small{display:none}.theme-button{display:grid}.locale-toggle{min-width:40px}.mobile-nav[data-open=true]{grid-template-columns:1fr}.hero{padding-top:0}.hero-grid{border-inline:0}.hero-media{min-height:238px}.hero-media:after{box-shadow:inset 0 -22px 28px #0717182e}.hero-copy{padding:1.6rem 1.25rem 1.85rem}h1{font-size:2.3rem}h2{font-size:1.72rem}.hero-copy .lede{font-size:1rem}.facts,.quick-facts{grid-template-columns:1fr 1fr}.fact{min-height:70px;padding:.55rem}.fact dd{font-size:.72rem}.content-band{padding:2.1rem 0}.intro-row{gap:1.35rem}.intro-text{font-size:1rem}.section-head{display:block}.section-head p{text-align:left;margin-top:.55rem}.hub-primary{padding:1.3rem 1.15rem}.hub-link{grid-template-columns:1fr;gap:.3rem}.chain{grid-template-columns:1fr}.chain-arrow{min-height:38px;transform:rotate(90deg)}.chain-stage{padding:1.15rem}.table-section,.feature{padding:2.6rem 0}.route-hero{padding-top:0}.route-hero-card{box-shadow:none}.route-hero-media{min-height:218px}.route-hero-copy{padding:1.55rem 1.25rem 1.8rem}.route-hero h1{font-size:2.25rem}.route-hero-copy p{font-size:.95rem}.article-shell{margin:1.8rem auto 3rem}.article .intro{font-size:1.05rem}.article h2{margin-top:2.35rem;font-size:1.72rem}th,td{padding:.62rem .72rem}.related-grid{grid-template-columns:1fr}.source-ledger li{display:block}.source-ledger li span{margin-top:.18rem;display:block}.footer-inner{grid-template-columns:1fr}.footer-nav{border-top:1px solid #526a70;padding-top:.7rem}.search-panel{padding:.9rem}.search-dialog{width:calc(100% - 20px)}.legal-card{padding:1.2rem}.ad-reservation{min-height:80px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}