:root{color-scheme:light;font-family:"Microsoft YaHei",system-ui,sans-serif;color:#182a40;background:#f6f7f5}*{box-sizing:border-box}body{margin:0}a{color:#245378;text-underline-offset:4px}header,footer{max-width:1060px;margin:auto;padding:24px;display:flex;align-items:center;justify-content:space-between;gap:20px}header{border-bottom:1px solid #dce2e2}header a{text-decoration:none}.brand{font-size:24px;font-weight:800}main{max-width:820px;padding:55px 24px;margin:auto}article{font-size:17px;line-height:1.95}h1{font-size:clamp(30px,5vw,44px);line-height:1.4;letter-spacing:-1px;margin:16px 0 22px}h2{font-size:24px;line-height:1.5}.eyebrow,.meta,figcaption{font-size:14px;color:#647782}.eyebrow{letter-spacing:2px}.meta{border-bottom:1px solid #dce2e2;padding-bottom:28px;margin-bottom:32px}p{margin:22px 0}ol{padding-left:28px}li{padding-left:8px;margin:12px 0}figure{margin:38px 0}img{display:block;width:100%;height:auto;border-radius:14px;border:1px solid #dce2e2}figcaption{margin-top:10px;text-align:center}.cta{display:inline-block;color:white;background:#173b5c;border-radius:8px;padding:12px 22px;text-decoration:none;font-size:16px}.cta:hover{background:#245378}a:focus-visible{outline:3px solid #39826e;outline-offset:5px}aside{background:#e9efeb;border-radius:14px;padding:24px;margin-top:40px}aside h2{margin-top:0}footer{font-size:14px;color:#647782;border-top:1px solid #dce2e2}@media(max-width:480px){main{padding:32px 20px}header,footer{padding:20px}article{font-size:16px}aside{padding:20px}footer{flex-wrap:wrap}}