:root{--bg:#f4f7fa;--paper:#fff;--pale:#eaf1f6;--mint:#e9f8f8;--nav:#102e46;--deep:#163c57;--teal:#13b8c5;--blue:#237bd3;--title:#18364b;--ink:#344c60;--muted:#64798a;--line:#dce6ed;--footer:#0b2539;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.82 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}img{max-width:100%}a{color:var(--blue);text-underline-offset:3px}a:hover{color:#115caa}button{font:inherit}button,a{touch-action:manipulation}:focus-visible{outline:3px solid var(--teal);outline-offset:3px}.container{width:min(calc(100% - 56px),var(--max));margin-inline:auto}.skip-link{position:absolute;left:12px;top:-80px;background:white;padding:10px;z-index:200}.skip-link:focus{top:8px}.site-header{position:relative;z-index:50}.brand-bar{background:var(--paper);border-bottom:1px solid 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@media(max-width:1024px){.container{width:min(calc(100% - 44px),var(--max))}.brand-note{font-size:12px}.section{margin-block:48px}.hero{gap:25px}}
@media(max-width:920px){.brand-layout{height:62px;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:12px}.brand{justify-self:center}.brand-img{max-height:29px;max-width:min(38vw,190px)}.brand-text{font-size:18px}.brand-text small{font-size:8px}.brand-note,.desktop-nav{display:none}.entry-link{margin:0;padding:8px 11px;font-size:13px;min-height:40px}.menu-trigger{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:40px;height:40px;border:1px solid var(--line);background:white;border-radius:8px;cursor:pointer}.menu-trigger span{width:19px;height:2px;background:var(--nav)}.drawer-overlay{position:fixed;inset:0;background:rgba(7,27,41,.55);z-index:80;opacity:0;transition:opacity .18s;visibility:hidden;pointer-events:none}.drawer-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.mobile-drawer{position:fixed;top:0;bottom:0;left:0;width:min(86vw,340px);overflow-y:auto;background:white;z-index:90;transform:translateX(-105%);transition:transform .22s;box-shadow:15px 0 40px #071c2933;visibility:hidden;pointer-events:none;padding:18px 22px}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-open{overflow:hidden}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:13px;color:var(--title)}.drawer-close{border:1px solid var(--line);background:white;width:40px;height:40px;border-radius:8px;cursor:pointer;font-size:26px}.drawer-group{padding:19px 0;border-bottom:1px solid var(--line)}.drawer-group h2{font-size:13px;color:var(--muted);margin-bottom:9px}.drawer-group a{display:block;color:var(--title);text-decoration:none;padding:8px 10px;border-radius:6px}.drawer-group a[aria-current]{background:var(--mint);border-left:3px solid var(--teal);font-weight:800}.mobile-shortcuts{display:flex;gap:10px;flex-wrap:wrap;justify-content:space-between;padding-top:24px}.mobile-shortcuts a{font-size:13px}.site-footer{margin-top:35px}}
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