:root{--ink:#112b42;--blue:#1f5c99;--muted:#496075;--line:#dce5ee;--paper:#f5f8fb;--gold:#e99a45;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:#fff;font-size:16px;line-height:1.8}
*{box-sizing:border-box}body{margin:0}a{color:var(--blue);text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid #b75b12;outline-offset:4px}.skip-link{position:absolute;left:16px;top:-100px;background:#fff;padding:10px 16px;z-index:10}.skip-link:focus{top:10px}.site-header{background:#0d2236;color:#fff}.header-inner,.container{width:min(1160px,100% - 48px);margin:auto}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:700;line-height:1.35}.brand img{width:44px;height:44px;border-radius:8px;background:#fff}.brand small{display:block;font-size:11px;font-weight:400;color:#c2d5e6;margin-top:4px}.header-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.header-links a{color:#fff;min-height:44px;display:inline-flex;align-items:center;font-size:14px}.hero{background:var(--paper);border-bottom:1px solid var(--line);padding:38px 0 52px}.breadcrumbs{display:flex;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:28px}.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:center}.eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--blue)}h1{font-size:clamp(30px,3.7vw,46px);line-height:1.35;letter-spacing:-.025em;margin:12px 0 20px}h2{font-size:clamp(23px,2.7vw,30px);line-height:1.4;margin:0 0 20px}h3{font-size:18px;line-height:1.5;margin:0 0 8px}p{margin:0 0 18px}.lead{font-size:17px;color:var(--muted)}.actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:26px 0 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 22px;border-radius:7px;background:var(--blue);color:#fff;text-decoration:none;font-weight:650}.button.secondary{background:#fff;border:1px solid #8ea9bf;color:var(--blue)}figure{margin:0}figure img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;display:block;border-radius:10px}figcaption{font-size:12px;color:var(--muted);margin-top:9px}.jump-links{padding:19px 0;border-bottom:1px solid var(--line)}.jump-links .container{display:flex;gap:12px 26px;flex-wrap:wrap}.jump-links a{font-size:14px;min-height:32px;display:inline-flex;align-items:center}.content{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:64px;padding-top:48px;padding-bottom:64px}.content article{min-width:0}.content section{padding-bottom:38px;margin-bottom:34px;border-bottom:1px solid var(--line);scroll-margin-top:22px}.content ul,.content ol{padding-left:24px;margin:16px 0}.content li{margin:9px 0}.steps{list-style:decimal}.steps li{padding-left:8px;margin:20px 0}.steps strong{display:block}.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:8px}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.6}caption{text-align:left;padding:14px 16px;background:#edf3f8;font-weight:650}th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f5f8fb}tr:last-child td{border-bottom:0}.note{border-left:3px solid var(--blue);padding:16px 20px;background:#f0f5fa;margin:22px 0}.note p:last-child{margin-bottom:0}.updated{color:var(--muted);font-size:12px}.sidebar{align-self:start;background:var(--paper);padding:25px;border:1px solid var(--line);border-radius:9px;font-size:14px}.sidebar h2{font-size:18px}.sidebar ul{padding-left:20px}.sidebar .button{width:100%;padding:10px 12px;font-size:14px}.faq details{border-top:1px solid var(--line);padding:16px 0}.faq summary{font-weight:650;cursor:pointer;min-height:36px}.faq details p{margin:14px 0 2px;color:var(--muted)}.related{display:grid;grid-template-columns:1fr 1fr;gap:18px}.related a{display:block;text-decoration:none;border:1px solid var(--line);padding:20px;border-radius:8px;color:var(--ink)}.related span{display:block;color:var(--blue);font-size:13px;margin-top:8px}.contact{background:#102d46;color:#fff;padding:40px;border-radius:12px;margin-bottom:48px}.contact a{color:#fff}.contact .button{background:#fff;color:#163951}.contact p{max-width:760px;color:#d2e1ee}.site-footer{border-top:1px solid var(--line);padding:28px 0;font-size:13px;color:var(--muted)}.site-footer .container{display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap}
@media(max-width:850px){.hero-grid{gap:28px;grid-template-columns:1fr}.hero figure{max-width:620px}.content{grid-template-columns:1fr;gap:0}.sidebar{margin-bottom:30px}.related{grid-template-columns:1fr}.hero{padding-bottom:36px}.contact{padding:26px}.header-inner{gap:14px;flex-wrap:wrap}.header-links{gap:20px}.header-inner,.container{width:calc(100% - 36px)}.content{padding-top:32px}.table-wrap{max-width:100%}th,td{padding:11px 12px}table{font-size:13px}.brand small{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}