:root{--ink:#142946;--blue:#1269e8;--deep:#073782;--muted:#75869c;--line:#e5ecf5;--bg:#f5f8fc;--orange:#ff893d}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #95c8ff;outline-offset:3px}.container{width:min(1120px,calc(100% - 48px));margin:0 auto}.site-header{height:70px;background:#fff;border-bottom:1px solid var(--line)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800}.brand img{width:34px;height:34px;border-radius:9px}.brand small{color:#8998ab;font-size:11px;font-weight:400;border-left:1px solid 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0}.platform-status.ready{color:#25875e}.notice{display:flex;gap:10px;align-items:flex-start;margin-top:20px;padding:14px 16px;border:1px solid #d9e7f7;border-radius:11px;background:#edf6ff;color:#60758f;font-size:12px;line-height:1.7}.notice>span{display:grid;place-items:center;flex:0 0 19px;height:19px;border-radius:50%;background:#cfe5ff;color:#2174cf;font-weight:800}.notice p{margin:0}.notice strong{color:#315a87;margin-right:5px}.notice a{color:var(--blue);font-weight:700}.site-footer{text-align:center;color:#9aa9bb;font-size:11px;padding:0 20px 30px}@media(max-width:720px){.container{width:min(100% - 32px,560px)}.site-header{height:62px}.brand{font-size:17px}.brand img{width:30px;height:30px}.brand small{display:none}.back-link{font-size:12px}.hero-layout{min-height:0}.hero-copy{padding:37px 0 34px}.hero-copy h1{font-size:34px;margin:14px 0 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