:root{--navy:#08254d;--blue:#0f62d8;--blue2:#0b4cac;--green:#08785a;--ink:#152238;--muted:#5e6d80;--line:#dbe5f0;--soft:#f4f7fb;--white:#fff;--shadow:0 18px 50px rgba(8,37,77,.09);color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:#f5f8fc;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;font-size:16px;line-height:1.7}a{color:#0b57bd;text-underline-offset:3px}a:hover{color:#073b80}img{max-width:100%;height:auto}.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}.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;padding:10px 14px;border-radius:8px;background:#fff;color:#111}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:1000;margin:0!important;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(219,229,240,.95);box-shadow:0 5px 20px rgba(8,37,77,.04);backdrop-filter:blur(14px);text-align:left!important}.site-header__inner{display:flex;align-items:center;justify-content:space-between;max-width:1180px;min-height:72px;margin:auto;padding:0 24px}.brand{display:inline-flex;align-items:center;gap:11px;color:var(--navy)!important;font-size:16px;font-weight:700;text-decoration:none}.brand__mark{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;background:linear-gradient(140deg,var(--navy),var(--blue));color:#fff;font-size:13px;font-weight:900;letter-spacing:.04em;box-shadow:0 8px 18px rgba(15,98,216,.23)}.brand b{color:var(--blue)}.primary-nav{display:flex;align-items:center;gap:4px}.primary-nav a{padding:9px 10px;border-radius:8px;color:#33465e;font-size:13.5px;font-weight:700;text-decoration:none}.primary-nav a:hover{background:#edf4ff;color:var(--blue)}.nav-toggle{display:none;border:1px solid var(--line);border-radius:9px;background:#fff;padding:7px 11px;color:var(--navy);font-size:21px}.page-shell{max-width:1180px;margin:auto;padding:0 24px}.breadcrumbs{display:flex;align-items:center;gap:8px;padding:24px 0 14px;color:#6a788b;font-size:13px}.breadcrumbs a{color:#4a607a;text-decoration:none}.page-hero{position:relative;overflow:hidden;margin:0 0 22px;padding:clamp(30px,5vw,58px);border-radius:26px;background:radial-gradient(circle at 92% 0,rgba(87,162,255,.35),transparent 31%),linear-gradient(135deg,#061d3d,#0a3d80 62%,#0f62d8);color:#fff;box-shadow:0 24px 60px rgba(8,37,77,.16)}.page-hero:after{content:"DL";position:absolute;right:3%;bottom:-28%;color:rgba(255,255,255,.055);font-size:220px;font-weight:900;line-height:1}.page-hero>div{position:relative;z-index:1;max-width:810px}.eyebrow{display:inline-block;margin-bottom:10px;color:inherit;font-size:11.5px;font-weight:850;letter-spacing:.11em;text-transform:uppercase}.page-hero h1{margin:0;color:#fff;font-size:clamp(32px,5.2vw,59px);line-height:1.07;letter-spacing:-.045em}.page-hero__lead{max-width:760px;margin:18px 0 0;color:rgba(255,255,255,.86);font-size:clamp(16px,2vw,19px);line-height:1.65}.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:23px}.hero-meta span{padding:6px 10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.08);color:#fff;font-size:12px;font-weight:700}.task-panel{display:grid;grid-template-columns:minmax(220px,.72fr) minmax(0,1.7fr);gap:28px;margin:22px 0;padding:27px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}.task-panel__head h2{margin:0 0 8px;color:var(--navy);font-size:24px;line-height:1.25}.task-panel__head p{margin:0;color:var(--muted);font-size:14px}.task-panel__head .eyebrow{color:var(--blue)}.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.route-card{display:grid;grid-template-columns:auto 1fr auto;align-items:start;gap:10px;min-height:118px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#f9fbfe;color:var(--ink)!important;text-decoration:none;transition:.18s}.route-card:hover{transform:translateY(-2px);border-color:#a9c5e9;box-shadow:0 10px 25px rgba(8,37,77,.08)}.route-card--primary{background:#edf5ff;border-color:#bfd5ef}.route-card__number{color:var(--blue);font-size:11px;font-weight:900}.route-card strong{display:block;color:var(--navy);font-size:14px;line-height:1.35}.route-card small{display:block;margin-top:6px;color:var(--muted);font-size:12px;line-height:1.45}.route-card__arrow{color:var(--blue);font-weight:900}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;align-items:start;margin:24px 0 58px}.article-card{min-width:0;padding:clamp(25px,5vw,52px);border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}.article-card h2{margin:52px 0 14px;padding-top:2px;color:var(--navy);font-size:clamp(24px,3vw,33px);line-height:1.2;letter-spacing:-.025em}.article-card h2:first-child{margin-top:0}.article-card h3{margin:32px 0 10px;color:#183961;font-size:21px;line-height:1.3}.article-card p{margin:13px 0}.article-card ul,.article-card ol{padding-left:23px}.article-card li{margin:7px 0}.article-card blockquote{margin:22px 0;padding:16px 18px;border-left:4px solid var(--blue);border-radius:0 10px 10px 0;background:#edf5ff;color:#28425f}.article-card table{display:block;width:100%;margin:22px 0;overflow-x:auto;border-collapse:collapse;border-radius:10px;background:#fff;font-size:14px}.article-card th,.article-card td{min-width:150px;padding:11px 12px;border:1px solid var(--line);text-align:left;vertical-align:top}.article-card th{background:#eaf2fc;color:var(--navy)}.article-card a[href^="http"]:after{content:" ↗";font-size:.8em}.page-aside{position:sticky;top:94px;display:grid;gap:14px}.aside-card{padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 10px 30px rgba(8,37,77,.06)}.aside-card h2{margin:0 0 10px;color:var(--navy);font-size:15px}.aside-card p{margin:0;color:var(--muted);font-size:13px}.aside-card nav{display:grid}.aside-card nav a{padding:7px 0;border-bottom:1px solid #edf1f6;color:#405872;font-size:12.5px;line-height:1.4;text-decoration:none}.aside-card nav a:last-child{border:0}.aside-card--safe{background:#ebfaf4;border-color:#bdebd9}.aside-icon{display:grid;place-items:center;width:30px;height:30px;margin-bottom:10px;border-radius:50%;background:var(--green);color:#fff;font-weight:900}.review-note{margin-top:50px;padding:20px;border:1px solid #f0d9a7;border-radius:12px;background:#fffaf0}.review-note h2{margin:0 0 7px;font-size:18px}.review-note p{margin:0;color:#685b40;font-size:13px}.site-footer{margin:0!important;padding:52px 24px 22px;background:#061b38;color:#c8d6e7;text-align:left!important}.site-footer__grid{display:grid;grid-template-columns:1.35fr .65fr 1fr;gap:50px;max-width:1132px;margin:auto}.brand--footer{color:#fff!important}.site-footer h2{margin:0 0 12px;color:#fff;font-size:14px}.site-footer p{max-width:440px;margin:13px 0 0;color:#aebed2;font-size:13px}.site-footer__grid>div>a:not(.brand){display:block;margin:6px 0;color:#c7d7eb;font-size:13px;text-decoration:none}.site-footer__bottom{display:flex;justify-content:space-between;max-width:1132px;margin:35px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#8fa4be;font-size:12px}
/* Homepage integration: preserve the full original content and interactive tool while applying the shared shell. */
.homepage{max-width:none!important;padding:0!important;background:#f5f8fc!important}.homepage-main{max-width:1040px;margin:auto;padding:35px 22px 60px}.homepage-main>h1{margin:0 0 20px;padding:clamp(34px,6vw,70px);border-radius:26px;background:radial-gradient(circle at 92% 0,rgba(87,162,255,.35),transparent 31%),linear-gradient(135deg,#061d3d,#0a3d80 62%,#0f62d8);color:#fff;font-size:clamp(34px,5.5vw,62px);line-height:1.06;letter-spacing:-.045em;box-shadow:0 24px 60px rgba(8,37,77,.16)}.homepage-main>p,.homepage-main>ul,.homepage-main>ol,.homepage-main>blockquote,.homepage-main>h2,.homepage-main>h3,.homepage-main>h5,.homepage-main>table,.homepage-main>hr{max-width:920px;margin-left:auto;margin-right:auto}.homepage-main>p,.homepage-main>ul,.homepage-main>ol{padding-left:0;padding-right:0}.homepage-main>h2{margin-top:55px;padding:0;color:var(--navy);font-size:clamp(25px,4vw,36px)}.homepage-main>h3{padding:0;color:#183961}.homepage-main>blockquote{padding:15px 18px;border-left:4px solid var(--blue);border-radius:0 10px 10px 0;background:#edf5ff}.homepage-main>table{width:920px;max-width:100%;background:#fff}.homepage .dld-tool{max-width:920px}.homepage-main>hr{border:0;border-top:1px solid var(--line)}
@media(max-width:980px){.primary-nav{position:absolute;left:18px;right:18px;top:67px;display:none;padding:10px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.primary-nav.is-open{display:grid}.nav-toggle{display:block}.task-panel{grid-template-columns:1fr}.content-layout{grid-template-columns:1fr}.page-aside{position:static;grid-template-columns:repeat(3,1fr)}.aside-card--toc{grid-column:1/-1}.aside-card--toc nav{grid-template-columns:repeat(2,1fr);gap:0 18px}.site-footer__grid{grid-template-columns:1fr 1fr}.site-footer__grid>div:first-child{grid-column:1/-1}}
@media(max-width:720px){body{font-size:16px}.site-header__inner{min-height:64px;padding:0 16px}.brand{font-size:14px}.brand__mark{width:36px;height:36px}.page-shell{padding:0 14px}.breadcrumbs{padding-top:18px}.page-hero{padding:30px 22px;border-radius:18px}.page-hero:after{font-size:130px}.task-panel{padding:20px;border-radius:16px}.route-grid{grid-template-columns:1fr}.route-card{min-height:auto}.article-card{padding:25px 20px;border-radius:16px}.page-aside{grid-template-columns:1fr}.aside-card--toc{grid-column:auto}.aside-card--toc nav{grid-template-columns:1fr}.site-footer{padding:40px 20px 20px}.site-footer__grid{grid-template-columns:1fr;gap:30px}.site-footer__grid>div:first-child{grid-column:auto}.site-footer__bottom{display:grid;gap:6px}.homepage-main{padding:20px 14px 45px}.homepage-main>h1{padding:31px 22px;border-radius:18px}.homepage-main>p,.homepage-main>ul,.homepage-main>ol{padding-left:0!important;padding-right:0!important}.homepage-main>ul,.homepage-main>ol{padding-left:24px!important}}
@media print{.site-header,.page-aside,.site-footer,.task-panel,.skip-link{display:none!important}.page-shell,.homepage-main{max-width:none;padding:0}.page-hero{padding:0;background:#fff;color:#000;box-shadow:none}.page-hero h1,.page-hero__lead{color:#000}.article-card{padding:0;border:0;box-shadow:none}}