:root{--ink:#172033;--muted:#5e6a7d;--line:#d8dee8;--paper:#fff;--soft:#f4f6f9;--navy:#121f55;--blue:#1f5f99;--teal:#287c79;--gold:#b38b3d;--deep:#0b1230;--shadow:0 16px 40px #121f5524}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--paper);margin:0;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;line-height:1.6}body.dialog-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:min(1180px,100% - 40px);margin:0 auto}.topbar{background:var(--deep);color:#eef3ff;font-size:14px}.topbar-inner{justify-content:space-between;align-items:center;gap:20px;min-height:44px;display:flex}.brand-band{border-bottom:1px solid var(--line);background:linear-gradient(90deg,#fffffffa,#f4f8fff0),radial-gradient(circle at 80% 30%,#b38b3d2e,#0000 28%)}.brand-row{justify-content:space-between;align-items:center;min-height:116px;display:flex}.brand{align-items:center;gap:18px;display:flex}.brand 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12px;font-size:14px;font-weight:700}.hero h1{letter-spacing:0;width:min(760px,100%);margin:0;font-size:clamp(34px,6vw,62px);line-height:1.14}.hero-copy{color:#e7edf8;width:min(650px,100%);margin:22px 0 0;font-size:clamp(17px,2vw,22px)}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:34px;display:flex}.primary-action,.secondary-action{cursor:pointer;border:1px solid #fff6;border-radius:6px;justify-content:center;align-items:center;min-height:46px;padding:0 24px;display:inline-flex}.primary-action{color:var(--deep);background:#fff}.secondary-action{color:#fff;background:#ffffff1f}.hero-metrics{grid-template-columns:repeat(3,1fr);gap:14px;width:min(920px,100%);margin:46px 0 0;display:grid}.hero-metrics div{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff14;border:1px solid #fff3;border-radius:8px;min-height:112px;padding:18px}.hero-metrics dt{font-size:22px;font-weight:800}.hero-metrics dd{color:#d9e2f3;margin:8px 0 0}.intro-strip{border-bottom:1px solid 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