:root{--ink:#071326;--navy:#091f3b;--navy2:#0d3157;--blue:#1768ac;--orange:#f26a1b;--orange2:#ff9f43;--paper:#f5f7fb;--white:#fff;--muted:#5b6878;--line:#dbe3ec;--shadow:0 14px 38px rgba(5,24,48,.12);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-size:16px;line-height:1.75;background:linear-gradient(180deg,#eef3f9 0,#fff 28rem)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button{font:inherit}.wrap{width:min(1160px,calc(100% - 32px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:10px}.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:30;border-bottom:3px solid var(--orange)}.top .wrap{display:flex;align-items:center;min-height:70px;gap:28px}.logo{font-weight:900;font-size:1.28rem;letter-spacing:.02em}.logo 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