*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:#F6F8F8;color:#374D58;font:16px/1.82 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}a{color:#226D9D;text-underline-offset:3px}a:hover{color:#168E96}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #168E96;outline-offset:3px}h1,h2,h3{color:#193946;line-height:1.35}h1{font-size:clamp(27px,3vw,40px);margin:.1em 0 .6em}h2{font-size:clamp(21px,2.15vw,27px);margin:0 0 .75em}h3{font-size:19px;margin:1.25em 0 .45em}p{margin:0 0 1.1em}ul,ol{padding-left:1.4em}li+li{margin-top:.45em}.wrap{width:min(100% - 56px,1220px);margin-inline:auto}.site-header{background:#122E3B;color:#fff;position:relative;z-index:5}.header-inner{width:min(100% - 56px,1220px);min-height:76px;margin:auto;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:7px;flex-shrink:0;color:#fff;text-decoration:none;line-height:1.2}.brand-en{font-size:10px;letter-spacing:.06em;max-width:64px}.brand-word{font-size:19px;font-weight:800}.desktop-nav{display:flex;align-items:center;justify-content:center;flex:1;gap:clamp(7px,1.1vw,19px);min-width:0}.desktop-nav a{font-size:clamp(12px,.93vw,14px);white-space:nowrap;color:#e7f1f5;text-decoration:none;padding:24px 0 20px;border-bottom:3px solid transparent}.desktop-nav a[aria-current=page]{color:#fff;border-color:#48b8be;font-weight:700}.entry-link{color:#fff!important;border:1px solid #6ca5ac;padding:7px 11px;border-radius:8px;text-decoration:none;white-space:nowrap;font-size:13px}.skip-link{position:absolute;top:-100px;left:10px;background:white;padding:8px;z-index:99}.skip-link:focus{top:8px}.breadcrumb{font-size:13px;color:#647981;padding-top:22px;padding-bottom:17px}.breadcrumb a{color:#647981}.breadcrumb span{margin-left:7px}.mobile-menu{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}main{padding-bottom:65px}.page-intro{max-width:830px;margin:15px 0 38px}.eyebrow{color:#168E96;font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}.lede{font-size:18px;color:#465f6a}.article-block,.section{margin-top:55px}.section-rule{border-top:1px solid #D9E3E6;padding-top:34px}.surface{background:#fff;border:1px solid #D9E3E6;border-radius:12px;padding:clamp(18px,2.4vw,30px)}.muted-surface{background:#EAF0F2;border-radius:12px;padding:24px}.dark-panel{background:#1A4050;border-radius:12px;color:#e5f2f3;padding:26px}.dark-panel h2,.dark-panel h3{color:white}.two-col{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:35px;align-items:start}.two-col.reverse{grid-template-columns:minmax(0,1fr) minmax(0,1.45fr)}.wide-narrow{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:36px}.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.article-width{max-width:770px}.max-wide{max-width:1040px}.text-rail{border-left:3px solid #168E96;padding-left:18px;margin:22px 0}.index-links{display:flex;gap:11px;flex-wrap:wrap;margin:20px 0}.index-links a{background:#EAF0F2;border-radius:6px;padding:7px 12px;text-decoration:none;font-size:14px}.route-row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #D9E3E6;gap:30px;padding:25px 0}.route-item{display:flex;align-items:flex-start;gap:16px}.route-num{color:#168E96;font-size:30px;font-weight:700;line-height:1}.route-item h3{margin:0 0 8px}.route-item p{margin-bottom:6px}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:30px;align-items:center;background:white;border:1px solid #D9E3E6;padding:28px;border-radius:14px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}.hero-actions a{font-weight:700}.image-holder{margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:0;width:100%;padding:8px;background:#EAF0F2;border-radius:12px}.image-holder img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--image-limit,180px);object-fit:contain;object-position:center}.image-holder figcaption{font-size:12px;color:#647981;margin-top:6px;text-align:center}.image-holder--logo{background:transparent;padding:0;width:auto;border-radius:0;--image-limit:38px}.image-holder--hero{--image-limit:290px}.image-holder--feature{--image-limit:240px}.image-holder--inline{--image-limit:180px}.image-holder--banner{--image-limit:190px}.image-holder--rules{--image-limit:210px}.image-holder--portrait{--image-limit:330px;max-width:310px;margin-inline:auto}.missing-image{background:#EAF0F2;border-left:3px solid #168E96;border-radius:5px;padding:10px 14px;font-size:13px;color:#647981}.comparison-scroll{max-width:1040px;overflow-x:auto;border:1px solid #D9E3E6;border-radius:10px;background:white}.comparison{border-collapse:collapse;width:100%;min-width:600px;font-size:15px}.comparison caption{caption-side:top;text-align:left;padding:12px 15px;font-weight:700;color:#193946}.comparison th,.comparison td{border-bottom:1px solid #D9E3E6;text-align:left;padding:12px 16px;vertical-align:top}.comparison thead th{background:#EAF0F2;color:#193946}.comparison tr:last-child td{border-bottom:0}.step-list{counter-reset:step;list-style:none;padding:0}.step-list li{counter-increment:step;display:grid;grid-template-columns:36px 1fr;gap:14px;margin:0;padding:18px 0;border-bottom:1px solid #D9E3E6}.step-list li:before{content:counter(step,decimal-leading-zero);font-weight:700;color:#168E96}.step-list li strong{display:block;color:#193946}.side-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:40px}.side-index{position:sticky;top:20px;align-self:start;border-left:2px solid #D9E3E6;padding:10px 0 10px 18px}.side-index a{display:block;margin-bottom:11px}.related{margin:60px 0 0;border-top:2px solid #168E96;padding-top:25px}.related ul{display:flex;flex-wrap:wrap;gap:14px;list-style:none;padding:0}.related li{margin:0}.related a{display:block;padding:10px 16px;border:1px solid #D9E3E6;border-radius:8px;text-decoration:none;background:white}.faq details{border-bottom:1px solid #D9E3E6;padding:14px 4px}.faq summary{cursor:pointer;color:#193946;font-weight:700}.faq details p{margin:12px 0 2px}.site-footer{background:#0C2632;color:#d3e0e5;padding:46px 0 18px}.footer-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px}.footer-brand{font-size:23px;font-weight:700;color:white}.footer-brand small{font-size:11px;margin-left:8px;letter-spacing:.12em}.site-footer h2{font-size:18px;color:white}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 12px}.site-footer a{color:#d3e0e5}.footer-bottom{font-size:12px;border-top:1px solid #37525e;margin-top:28px;padding-top:14px}.accent-line{border-left:4px solid #168E96;padding:13px 18px;background:#EAF0F2}.feature-caption{font-size:13px;color:#647981}.small-note{font-size:14px;color:#647981}section[id],article[id],h2[id]{scroll-margin-top:94px}@media(max-width:1100px){.header-inner{gap:12px}.desktop-nav{gap:9px}.brand-en{display:none}}@media(max-width:980px){.wrap,.header-inner{width:calc(100% - 44px)}.header-inner{height:64px;min-height:64px;display:grid;grid-template-columns:1fr auto 1fr;gap:8px}.desktop-nav{display:none}.brand{grid-column:2;justify-self:center}.brand-en{display:inline}.entry-link{grid-column:3;justify-self:end}.mobile-menu{display:block;grid-column:1;grid-row:1}.mobile-menu summary{cursor:pointer;list-style:none;color:white;width:44px;height:44px;display:grid;place-items:center;border:1px solid #567581;border-radius:8px}.mobile-menu summary::-webkit-details-marker{display:none}.hamburger{font-size:22px;line-height:1}.mobile-menu-content{position:absolute;top:64px;left:0;right:0;background:#fff;color:#193946;padding:20px max(22px,calc((100vw - 1220px)/2));box-shadow:0 12px 20px #122e3b20;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.mobile-group{display:flex;flex-direction:column;gap:8px}.mobile-group strong{color:#168E96}.mobile-group a{display:block;padding:5px 0}.menu-close{position:absolute;right:22px;top:10px;background:transparent;border:0;color:#193946;cursor:pointer}.mobile-menu-content{padding-top:44px}}@media(max-width:760px){.two-col,.two-col.reverse,.wide-narrow,.side-layout,.footer-grid{grid-template-columns:1fr}.side-index{position:static}.three-col{grid-template-columns:1fr}.hero{grid-template-columns:1fr}.article-block,.section{margin-top:38px}.route-row{gap:20px}.footer-grid{gap:18px}}@media(max-width:640px){body{font-size:15px;line-height:1.8}.wrap,.header-inner{width:calc(100% - 32px)}h1{font-size:28px}h2{font-size:22px}.hero{padding:18px}.lede{font-size:16px}.route-row{grid-template-columns:1fr;gap:18px;padding:19px 0}.image-holder--logo{--image-limit:30px}.image-holder--hero{--image-limit:195px}.image-holder--feature{--image-limit:180px}.image-holder--inline{--image-limit:140px}.image-holder--banner{--image-limit:125px}.image-holder--rules{--image-limit:165px}.image-holder--portrait{--image-limit:275px;max-width:240px}.brand-en{font-size:9px}.mobile-menu-content{grid-template-columns:1fr;max-height:calc(100vh - 64px);overflow:auto;gap:14px}.mobile-group{gap:2px}.entry-link{font-size:12px;padding:6px 8px}}@media(max-width:360px){.brand-en{display:none}.entry-link{font-size:11px;padding:6px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
