:root{--ink:#080E19;--night:#0E1727;--nav:#121F32;--nav-card:#1A2B40;--ocean:#173555;--brand-blue:#215CB0;--button-blue:#1A519F;--bright-blue:#4A9AE6;--ice:#73CEE6;--paper:#F4F7FB;--paper-blue:#E8F1FA;--warm-white:#FBF9F5;--card:#FFFFFF;--dark-title:#172C41;--dark-body:#344B60;--night-title:#FAFCFF;--night-body:#DAE5EF;--coral:#E18B79;--mint:#6DBCB1;--amber:#E6B46F;--lilac:#AB9CDB}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft Yahei",sans-serif;color:var(--dark-body);background:var(--paper);font-size:16px;line-height:1.78;overflow-x:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--brand-blue)}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--ice);outline-offset:2px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--dark-title);line-height:1.32}h1{font-size:clamp(27px,3.1vw,38px)}h2{font-size:clamp(21px,2.1vw,27px)}h3{font-size:18px}p{margin-bottom:18px}.wrap{max-width:1240px;padding:0 32px;margin:0 auto}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}.skip{position:absolute;left:-9999px;top:0;background:white;padding:12px;z-index:100}.skip:focus{left:10px}.topbar{background:var(--ink);color:var(--night-body);font-size:12px}.topflex{min-height:30px;display:flex;justify-content:space-between;align-items:center;gap:16px}.topbar nav{display:flex;gap:18px}.topbar a:hover{color:var(--ice)}.mast{background:var(--nav);color:#fff;position:relative;z-index:12}.mast-inner{display:flex;align-items:center;min-height:72px;gap:22px}.brand{display:flex;align-items:center;gap:9px;color:white;flex-shrink:0;line-height:1.1}.brand:hover{color:white}.brand-mark{width:42px;height:42px;border:2px solid var(--ice);display:grid;place-items:center;color:var(--ice);font-size:24px;font-weight:900;border-radius:11px}.brand b{display:block;font-size:22px;letter-spacing:1px}.brand small{font-size:9px;letter-spacing:1.7px;color:var(--ice)}.mainnav{display:flex;gap:20px;margin-left:auto;white-space:nowrap}.mainnav a{font-size:15px;color:#e0e8f2;padding:22px 0 20px;border-bottom:3px solid transparent}.mainnav a.active,.mainnav a:hover{border-bottom-color:var(--ice);color:white}.quicksearch{display:flex;align-items:center;background:#263b53;border-radius:8px;overflow:hidden;max-width:180px}.quicksearch input{width:112px;min-width:0;color:#fff;border:0;background:none;padding:9px;font:inherit;font-size:13px}.quicksearch input::placeholder{color:#c2d3e3}.quicksearch button{border:0;padding:9px;background:var(--button-blue);color:white;cursor:pointer}.menu-open{border:1px solid #647b96;background:transparent;color:#fff;border-radius:9px;min-height:44px;padding:0 12px;cursor:pointer;white-space:nowrap}.nav-strip{border-bottom:1px solid #d7e2ee;background:#fff}.nav-strip-inner{display:flex;align-items:center;gap:25px;overflow-x:auto;white-space:nowrap;min-height:49px;font-size:13px}.strip-label{font-weight:800;color:#215cb0}.nav-strip a{color:#31506b}.nav-strip a:hover{color:#215cb0}.menu-shade{position:fixed;inset:0;background:#020915a6;z-index:20}.menu-shade[hidden]{display:none}.mega-menu{position:fixed;right:0;top:0;bottom:0;width:min(540px,90vw);background:var(--nav);z-index:21;overflow-y:auto;color:#eaf3fc;padding:22px 26px;transform:translateX(110%);transition:transform .2s;box-shadow:-20px 0 40px #0003}.mega-menu.open{transform:translateX(0)}.mega-menu h2{color:var(--ice);font-size:16px;margin:22px 0 10px}.menu-header{display:flex;align-items:center;justify-content:space-between;font-size:20px}.menu-header button{background:#284662;color:white;border:0;border-radius:8px;font-size:26px;min-width:44px;min-height:44px;cursor:pointer}.menu-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.menu-links a{font-size:13px;background:#20334a;color:#e9f1fa;border-radius:7px;padding:9px 10px}.menu-links a:hover{background:#295b8d}.eyebrow{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--brand-blue);display:inline-block;margin-bottom:12px}.section{margin:60px 0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}.section-heading h2{margin:0}.section-heading p{margin:7px 0 0;max-width:720px}.section-heading a{color:var(--brand-blue);white-space:nowrap;font-weight:700}.hero{background:linear-gradient(125deg,#101d31,#1e446a);color:#e8f1fa;margin-top:20px;border-radius:14px;display:grid;grid-template-columns:44% 56%;min-height:355px;overflow:hidden}.hero-copy{padding:clamp(24px,4vw,55px);display:flex;flex-direction:column;justify-content:center}.hero h1{color:#fff;font-size:clamp(28px,3vw,39px)}.hero p{color:#d9e6f0}.hero .eyebrow{color:var(--ice)}.hero-media{display:flex;min-height:320px}.hero-media>*{width:100%;height:100%}.image-fallback{background:linear-gradient(145deg,#173555 0%,#25496a 55%,#1b354e 100%);color:#d6eaf8;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:28px;gap:13px;min-height:180px;overflow:hidden;position:relative}.image-fallback:before{content:"";position:absolute;border:1px solid #9bd7f555;border-radius:50%;width:66%;aspect-ratio:1;right:-20%;top:-50%}.image-fallback span{font-size:12px;letter-spacing:3px;color:var(--ice)}.image-fallback strong{font-size:clamp(20px,2.8vw,33px);line-height:1.4;max-width:85%;font-weight:800}.hero-media img,.media-card img,.feature-media img{display:block;width:100%;height:100%;object-fit:contain}.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.btn{background:var(--button-blue);color:#fff;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;padding:10px 18px;min-height:44px;font-weight:700}.btn:hover{background:#3474c2;color:white}.btn.secondary{background:#e0eef9;color:#10243a}.paper{background:white;padding:26px;border:1px solid #e3ebf3;border-radius:12px}.quick-six{display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px}.quick-item{border-top:1px solid #dae5ed;padding:18px 0}.quick-item a{font-weight:750;color:#1b354b;display:block}.quick-item p{font-size:13px;line-height:1.65;margin:8px 0 0}.channel-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.channel-grid a{display:block;background:#e8f1fa;border-left:3px solid var(--brand-blue);padding:18px 12px;border-radius:5px;font-weight:800;text-align:center}.twocol{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:24px}.media-card{border-radius:12px;overflow:hidden;border:1px solid #dae6ef;background:#fff}.media-card .image-fallback,.media-card img{aspect-ratio:16/9;min-height:0}.media-card .body{padding:20px}.media-card .body h3{font-size:23px}.feature-media{overflow:hidden;border-radius:11px;min-height:230px}.feature-media .image-fallback{height:100%}.story-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.story-card{background:white;border-radius:11px;padding:22px;border:1px solid #e0e8ef;min-width:0}.story-card p{font-size:14px;line-height:1.75}.story-card h3{margin-bottom:11px}.readmore{color:var(--brand-blue);font-weight:750;font-size:14px}.dark-panel{background:#112238;border-radius:13px;color:var(--night-body);padding:30px}.dark-panel h2,.dark-panel h3{color:white}.dark-panel .story-card{background:#1b314a;border-color:#33536f;color:#d6e1e9}.dark-panel .story-card h3,.dark-panel .story-card h3 a{color:white}.dark-panel .story-card .eyebrow,.dark-panel .readmore{color:var(--ice)}.stripe-panel{background:#e8f1fa;padding:26px;border-radius:12px}.theme-rows{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.theme-rows a{border-bottom:1px solid #aec9dc;padding:14px 5px;font-weight:750}.process{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.step{background:white;border:1px solid #bed7e8;border-radius:10px;padding:16px}.step b{color:var(--brand-blue);font-size:25px}.step h3{font-size:16px;margin:6px 0}.columns-list{columns:2;column-gap:25px}.columns-list a{display:block;padding:12px 0;border-bottom:1px solid #d1e0eb;break-inside:avoid}.home-layout{display:grid;grid-template-columns:188px minmax(0,1fr);gap:32px}.side-index{padding-top:35px}.side-index .side-box{position:sticky;top:20px;background:#fff;border:1px solid #e1ebf3;padding:16px;border-radius:12px}.side-index strong{display:block;color:#163759;margin-bottom:10px}.side-index a{display:block;padding:10px 0;font-size:14px;border-bottom:1px solid #e4edf4}.home-content{min-width:0}.home-content .section{margin:46px 0}.home-content .hero{margin-top:28px}.breadcrumb{font-size:13px;margin:24px 0;color:#60758a}.page-banner{background:linear-gradient(110deg,#12233a,#215075);padding:40px;color:#e4f0fb;border-radius:12px;display:grid;grid-template-columns:1fr .75fr;gap:22px;align-items:center}.page-banner h1{color:white}.page-banner .eyebrow{color:var(--ice)}.page-banner .image-fallback{min-height:200px}.page-body{padding:36px 0 70px}.narrow{max-width:810px}.article-body{max-width:760px;margin:auto;background:#fff;border:1px solid #e3e9f1;border-radius:12px;padding:clamp(23px,4vw,52px)}.article-body p{font-size:17px;line-height:1.85}.article-body h2{margin-top:32px;font-size:24px}.article-meta{font-size:13px;color:#617489;margin:14px 0 26px}.related{margin-top:40px}.info-block{background:white;border-left:4px solid var(--brand-blue);padding:24px;margin-top:22px;border-radius:7px}.info-block h2{font-size:21px}.info-block p{margin-bottom:8px}.info-block li{padding:4px 0}.inline-links{display:flex;gap:10px;flex-wrap:wrap}.tag{display:inline-block;border:1px solid #b8cadb;border-radius:30px;padding:4px 12px;font-size:13px;color:#1c5079}.text-link{color:var(--brand-blue);text-decoration:underline;text-underline-offset:3px}.searchbox{display:flex;gap:9px;max-width:650px}.searchbox input,.field{min-height:45px;border:1px solid #afc1d0;border-radius:8px;padding:9px 13px;font:inherit;min-width:0;background:white;color:#1b354b}.searchbox input{flex:1}.button{background:var(--button-blue);border:0;color:#fff;border-radius:8px;min-height:45px;padding:10px 22px;cursor:pointer;font:inherit;font-weight:750}.button:hover{background:#2a70b7}.pagination{display:flex;gap:8px;margin-top:28px;flex-wrap:wrap}.pagination a,.pagination strong{padding:8px 13px;border:1px solid #bdd0e0;background:#fff;border-radius:6px}.pagination strong{background:var(--brand-blue);color:white}.form-shell{background:#fff;border:1px solid #dce7f0;padding:26px;border-radius:12px;max-width:760px}.form-grid{display:grid;gap:12px}.form-grid label{font-weight:700}.form-grid textarea{width:100%;min-height:140px;resize:vertical}.form-grid input{width:100%}.notice{background:#e8f1fa;border-left:4px solid var(--brand-blue);padding:14px;border-radius:7px;margin:18px 0}.error{background:#fff0ee;border-color:#ad433d}.message{border-bottom:1px solid #dee7ee;padding:16px 0}.message header{display:flex;gap:12px;justify-content:space-between;color:#41627a;font-size:13px}.message p{overflow-wrap:anywhere;white-space:pre-wrap;margin:8px 0}.data-table{border-collapse:collapse;width:100%}.data-table td,.data-table th{padding:14px;border:1px solid #c7d9e5;text-align:left}.data-table th{background:#dbeaf6}.footer{background:#0d1828;color:#d6e2ef;padding:48px 0 15px}.foot-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:35px}.foot-grid h2{color:#fff;font-size:16px}.foot-grid a{display:block;font-size:14px;margin:9px 0}.foot-grid a:hover{color:var(--ice)}.footbrand{color:white;font-weight:900;font-size:24px}.footbrand span{font-size:11px;letter-spacing:1px;color:var(--ice)}.foot-grid p{font-size:13px;line-height:1.7}.foot-bottom{font-size:12px;border-top:1px solid #33475c;margin-top:30px;padding-top:15px;display:flex;justify-content:space-between;gap:15px}.mobile-bottom{display:none}@media(max-width:1120px){.mainnav{gap:12px}.quicksearch{display:none}.home-layout{grid-template-columns:minmax(0,1fr)}.side-index{display:none}.mast-inner{gap:16px}.mainnav{margin-left:auto}}@media(max-width:800px){.wrap{padding:0 22px}.mainnav{display:none}.mast-inner{min-height:65px}.menu-open{margin-left:auto}.twocol,.split-feature,.page-banner{grid-template-columns:1fr}.page-banner .image-fallback{min-height:210px}.story-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-grid{grid-template-columns:repeat(3,1fr)}.process{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero-media{min-height:250px;height:260px}.foot-grid{grid-template-columns:1.5fr 1fr;gap:24px}.quick-six{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.wrap{padding:0 17px}.topbar nav{display:none}.section{margin:32px 0}.home-content .section{margin:34px 0}.story-grid,.quick-six,.theme-rows{grid-template-columns:1fr}.channel-grid{grid-template-columns:repeat(2,1fr)}.hero{min-height:0}.hero-copy{padding:28px 22px}.hero-media{height:215px;min-height:215px}.section-heading{align-items:flex-start;flex-direction:column;gap:5px}.page-banner{padding:25px}.page-body{padding:25px 0 55px}.paper,.dark-panel,.stripe-panel{padding:18px}.story-card{padding:19px}.process{grid-template-columns:1fr 1fr;gap:8px}.step{padding:12px}.step h3{font-size:14px}.menu-links{grid-template-columns:repeat(2,1fr)}.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>:first-child{grid-column:1/-1}.foot-bottom{flex-direction:column}.mobile-bottom{position:fixed;display:flex;bottom:0;left:0;right:0;background:#102139f2;color:#fff;z-index:10;justify-content:space-around;padding:5px 0 calc(6px + env(safe-area-inset-bottom));box-shadow:0 -2px 15px #0003}.mobile-bottom a{min-width:55px;min-height:46px;display:flex;align-items:center;justify-content:center;flex-direction:column;line-height:1.2;font-size:20px}.mobile-bottom small{font-size:11px}.footer{padding-bottom:88px}.searchbox{flex-direction:column}.searchbox input{width:100%}.article-body{padding:24px 20px}.article-body p{font-size:16px}}