:root{--bg:#F4F7FA;--white:#fff;--mist:#EAF1F6;--pale:#E9F8F8;--navy:#102E46;--dark:#163C57;--cyan:#13B8C5;--blue:#237BD3;--heading:#18364B;--text:#344C60;--muted:#64798A;--line:#DCE6ED;--footer:#0B2539}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;overflow-wrap:break-word}body.drawer-open{overflow:hidden}a{color:#166AAA;text-underline-offset:3px}a:hover{color:#0B8D99}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}img{max-width:100%;height:auto}button{font:inherit;cursor:pointer}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--heading);line-height:1.37}h1{font-size:clamp(2rem,3vw,2.7rem);letter-spacing:-.03em}h2{font-size:clamp(1.5rem,2.25vw,1.75rem);margin-bottom:18px}h3{font-size:1.23rem;margin-bottom:11px}p{margin-bottom:16px}small{font-size:.72em}.wrap{width:min(1200px,calc(100% - 56px));margin-inline:auto}.site-header{background:var(--white)}.brand-bar{height:72px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;text-decoration:none;color:var(--heading);min-width:0;max-width:230px}.brand img{width:auto;height:auto;max-height:38px;max-width:220px;object-fit:contain}.brand-text{font-size:21px;font-weight:800;line-height:1}.brand-text small{display:block;font-size:10px;letter-spacing:2px;margin-top:7px}.brand-tagline{font-size:13px;color:var(--muted)}.register-link{margin-left:auto;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;min-height:42px;padding:0 23px;border-radius:10px;background:var(--cyan);color:#062B39;font-weight:700;text-decoration:none}.register-link:hover{background:#0E9BA7;color:#fff}.desktop-nav{background:var(--navy)}.nav-inner{display:flex;align-items:stretch;justify-content:space-between;min-height:50px;gap:8px}.nav-inner a{position:relative;flex:1;display:flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;color:#E8F2F6;font-size:15px;font-weight:500;padding:10px 5px;white-space:nowrap}.nav-inner a:hover,.nav-inner a[aria-current]{color:white;font-weight:700}.nav-inner a[aria-current]:after{content:"";height:3px;background:var(--cyan);position:absolute;bottom:0;left:26%;right:26%}.menu-toggle{display:none}.skip-link{position:absolute;top:-70px;left:10px;z-index:100;background:#fff;padding:8px}.skip-link:focus{top:8px}.drawer-overlay,.mobile-drawer,.mobile-quicklinks,.no-js-nav{display:none}.page{padding:40px 0 70px}.breadcrumb{font-size:14px;color:var(--muted);display:flex;gap:11px;align-items:center;margin-bottom:22px}.breadcrumb a{color:var(--muted)}.lede{font-size:17px;line-height:1.85;max-width:800px}.eyebrow{color:#087F8B;font-size:13px;text-transform:uppercase;font-weight:800;letter-spacing:.1em;margin-bottom:12px}.hero{display:grid;grid-template-columns:52fr 48fr;gap:42px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:16px;padding:34px}.hero h1{margin-bottom:18px}.hero .lead-note{font-size:17px;color:var(--muted)}.actions,.link-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:10px;padding:10px 18px;min-height:44px;font-weight:700}.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:#245473;color:#fff}.btn-outline{border:1px solid #AAC4D5;color:var(--navy);background:var(--white)}.media-frame{display:flex;align-items:center;justify-content:center;min-width:0;width:100%;padding:8px;border-radius:14px;background:var(--mist);overflow:hidden}.media-frame img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--wide{--media-limit:210px}.media-frame--mobile{--media-limit:350px;max-width:320px;margin:auto}.media-frame--logo{--media-limit:38px}.media-placeholder{width:100%;min-height:130px;display:flex;align-items:center;justify-content:center;border:1px dashed #BED0DD;border-radius:10px;color:#7D92A2;font-size:13px;background:linear-gradient(135deg,#EAF1F6,#F5F9FB)}.media-frame--hero .media-placeholder{min-height:210px}.media-frame--mobile .media-placeholder{min-height:220px}.section{margin-top:58px}.section-heading{max-width:780px;margin-bottom:23px}.section-heading>p{color:var(--muted)}.topic-index{display:grid;grid-template-columns:1fr 1fr;gap:0 38px}.topic-index article{padding:20px 0;border-top:1px solid var(--line);min-width:0}.topic-index h3{margin-bottom:7px}.topic-index a{font-weight:700}.feature-pair{display:grid;grid-template-columns:2fr 1fr;gap:22px}.feature-story{border-top:4px solid var(--navy);background:var(--white);padding:27px;border-radius:0 0 12px 12px}.side-stories{display:grid;gap:20px}.side-stories article{border-top:3px solid var(--cyan);background:var(--pale);padding:22px}.split{display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:42px}.split.reverse{grid-template-columns:1.15fr 1fr}.split.reverse .media-frame{order:2}.dark-band{background:var(--navy);color:#E5F1F6;border-radius:14px;padding:36px}.dark-band h2,.dark-band h3{color:#fff}.dark-band a{color:#6EE5E7}.fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.fact-grid article{padding:20px 22px;border-left:3px solid var(--cyan);background:white}.route-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:route}.route-flow 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0}.panel{background:white;border:1px solid var(--line);border-radius:12px;padding:24px}.note{background:var(--pale);border-left:4px solid var(--cyan);padding:17px 20px;margin:22px 0}.table-scroll{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:10px;background:white}table{width:100%;border-collapse:collapse;min-width:590px;text-align:left;font-size:15px}caption{caption-side:top;text-align:left;font-weight:700;padding:16px;color:var(--heading)}th,td{border-bottom:1px solid var(--line);padding:13px 15px;vertical-align:top}th{background:#EAF1F6;color:var(--heading)}tr:last-child td{border-bottom:0}.step-list{counter-reset:steps;list-style:none;padding:0;margin:20px 0}.step-list li{position:relative;padding:15px 15px 15px 58px;margin-bottom:13px;background:white;border:1px solid var(--line);border-radius:10px}.step-list 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var(--line);border-radius:9px;padding:0 20px}.faq-list summary{cursor:pointer;padding:13px 0;font-weight:700;color:var(--heading)}.faq-list p{padding-bottom:10px}.service-layout{display:grid;grid-template-columns:245px minmax(0,1fr);gap:40px}.service-layout aside{align-self:start;background:var(--navy);padding:24px;border-radius:12px}.service-layout aside h2{font-size:18px;color:white}.service-layout aside a{display:block;color:#D6EFF6;padding:6px 0}.service-layout .article-body{max-width:none}.related{margin-top:58px;padding-top:26px;border-top:1px solid var(--line)}.related-links{display:flex;flex-wrap:wrap;gap:12px}.related-links a{display:inline-block;padding:10px 16px;border:1px solid #BED1DE;border-radius:9px;background:#fff;text-decoration:none;font-weight:700}.site-footer{background:var(--footer);color:#DCECF5;padding:45px 0 16px;font-size:14px}.site-footer strong{color:#fff}.footer-title{font-size:21px}.footer-title 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