:root{--navy:#102E46;--deep:#163C57;--teal:#13B8C5;--blue:#237BD3;--ink:#18364B;--body:#344C60;--mute:#64798A;--line:#DCE6ED;--pale:#EAF1F6;--mint:#E9F8F8;--bg:#F4F7FA}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.8 Arial,'PingFang SC','Microsoft YaHei',sans-serif;overflow-wrap:break-word}body.drawer-open{overflow:hidden}a{color:#1365A4;text-underline-offset:4px}a:hover{color:#084d83}img{max-width:100%}h1,h2,h3,h4{color:var(--ink);line-height:1.38;margin:0 0 .65em}h1{font-size:clamp(2rem,3vw,2.65rem)}h2{font-size:1.68rem}h3{font-size:1.2rem}p{margin:.35em 0 1.1em}ul,ol{padding-left:1.5em}li{margin:.35em 0}small,.eyebrow,.subtle{color:var(--mute)}strong{color:var(--ink)}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.container{width:min(1200px,calc(100% - 56px));margin-inline:auto}.main-content{padding-top:36px;padding-bottom:65px;min-height:55vh}.section-space{margin-top:62px}.skip-link{position:absolute;top:-100px;left:10px;background:white;padding:10px;z-index:300}.skip-link:focus{top:10px}.site-header{background:white}.brand-bar{border-bottom:1px solid var(--line)}.brand-layout{height:72px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;min-width:0;text-decoration:none;color:var(--navy)}.brand img{width:auto;height:auto;max-height:38px;object-fit:contain}.brand-text{font-size:23px;font-weight:800;white-space:nowrap;line-height:1.1}.brand-text small{display:block;font-size:11px;letter-spacing:2px;color:var(--mute)}.brand-note{font-size:13px;color:var(--mute);margin-right:auto}.entry-link{margin-left:auto;white-space:nowrap;text-decoration:none;background:var(--deep);color:white;padding:7px 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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}.image-fallback{border:1px dashed #b9cfdc;background:#eaf1f6;color:#6b8292;text-align:center;padding:34px 18px;border-radius:8px;width:100%;font-size:14px}.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 35px}.directory article{border-top:1px solid var(--line);padding:20px 0}.directory h3{margin:0 0 7px}.directory p{font-size:15px}.split{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:start}.split.equal{grid-template-columns:repeat(2,minmax(0,1fr))}.split.reverse{grid-template-columns:.9fr 1.2fr}.feature-panel{background:white;border-left:4px solid var(--teal);padding:26px;border-radius:0 13px 13px 0}.small-stack{display:grid;gap:20px}.small-stack article{border-bottom:1px solid var(--line);padding-bottom:15px}.soft-band{background:var(--pale);padding:28px;border-radius:14px}.mint-band{background:var(--mint);padding:25px;border-radius:14px}.ink-band{background:var(--deep);color:#eaf6fc;padding:30px;border-radius:14px}.ink-band h2,.ink-band h3{color:white}.process{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.process article{border-top:3px solid var(--teal);background:white;padding:18px;border-radius:0 0 10px 10px}.process b{display:block;color:var(--blue);font-size:24px}.knowledge-blocks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;align-items:start}.knowledge-blocks article{padding:22px;border:1px solid var(--line);background:white;border-radius:12px}.knowledge-blocks article:nth-child(2){margin-top:28px}.knowledge-blocks article:nth-child(3){margin-top:55px}.article-flow{max-width:790px}.article-flow p{line-height:1.85}.article-section{margin-top:50px}.article-section h2{padding-bottom:13px;border-bottom:1px solid var(--line)}.toc{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}.toc a{border:1px solid #bdd1db;background:white;padding:7px 16px;border-radius:100px;text-decoration:none;font-weight:700}.with-aside{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:45px}.side-index{background:var(--pale);border-radius:12px;padding:22px;align-self:start}.side-index ul{padding-left:18px}.table-scroll{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:10px}table{border-collapse:collapse;width:100%;min-width:560px;background:white;font-size:15px}caption{text-align:left;padding:12px 16px;font-weight:700;color:var(--ink)}th,td{border-bottom:1px solid var(--line);padding:13px 16px;text-align:left;vertical-align:top}th{background:var(--pale);color:var(--ink);font-weight:700}tr:last-child 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var(--navy);padding-top:24px}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.related-grid>div{background:white;border:1px solid var(--line);border-radius:10px;padding:18px}.related-grid a{font-weight:700;text-decoration:none}details{background:white;border:1px solid var(--line);border-radius:10px;padding:0 17px;margin:9px 0}summary{cursor:pointer;font-weight:700;color:var(--ink);padding:14px 3px}details p{padding:0 3px 12px;margin:0}.service-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px}.service-menu{background:var(--pale);padding:18px;border-radius:12px;align-self:start}.service-menu a{display:block;padding:7px}.service-content section{margin-bottom:40px}.site-footer{background:#0B2539;color:#DCECF5;padding:42px 0 18px;font-size:14px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:45px}.footer-grid h2{font-size:17px;color:white}.footer-grid a{display:block;color:#DCECF5;text-decoration:none;margin:5px 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@media(max-width:1200px){.container{width:calc(100% - 44px)}.split{gap:26px}.hero{gap:24px}}@media(max-width:920px){.brand-layout{height:62px;justify-content:space-between;gap:12px}.brand{position:absolute;left:50%;transform:translateX(-50%);max-width:44%}.brand img{max-height:30px;max-width:100%}.brand-text{font-size:17px}.brand-note,.desktop-nav{display:none}.entry-link{margin-left:auto;padding:7px 12px;font-size:13px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;background:none;border:1px solid var(--line);border-radius:8px;cursor:pointer}.menu-toggle span{display:block;width:19px;height:2px;background:var(--navy)}.drawer-backdrop{display:block;position:fixed;inset:0;background:rgba(5,20,31,.53);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.drawer-backdrop.visible{opacity:1;visibility:visible;pointer-events:auto}.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:min(86vw,340px);background:white;z-index:91;transform:translateX(-105%);visibility:hidden;overflow-y:auto;transition:transform .2s,visibility .2s;box-shadow:6px 0 20px #102e4633}.mobile-drawer.open{transform:translateX(0);visibility:visible}.drawer-head{height:62px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line)}.drawer-close{width:42px;height:42px;border:0;background:var(--pale);border-radius:10px;font-size:27px;cursor:pointer}.mobile-drawer nav{padding:8px 20px 35px}.mobile-drawer h2{font-size:13px;text-transform:uppercase;letter-spacing:2px;color:var(--mute);margin:22px 0 5px}.mobile-drawer nav a{display:block;padding:11px 8px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line);font-weight:700}.mobile-quick{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;padding:12px 0 25px;font-size:14px}.mobile-quick a{padding:5px}.noscript-nav{display:flex;overflow-x:auto;background:#eaf1f6;gap:15px;padding:10px 22px}.noscript-nav a{white-space:nowrap}.footer-grid{gap:23px}}
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