:root{--c-void:#070b16;--c-deep:#0d1426;--c-panel:#131c33;--c-panel-2:#1a2544;--c-line:#26324f;--c-ice:#eaf1ff;--c-mist:#a7b6d4;--c-fog:#6b7ba0;--c-blue:#2f6bff;--c-cyan:#29e0e0;--c-violet:#7a5cff;--c-steel:#c3ccdf;--grad-hero:radial-gradient(1200px 600px at 75% -10%,rgba(47,107,255,.35),transparent 60%),radial-gradient(900px 500px at 10% 110%,rgba(41,224,224,.14),transparent 55%);--grad-btn:linear-gradient(135deg,#2f6bff 0%,#29e0e0 100%);--shadow-lift:0 20px 50px -18px rgba(6,30,80,.8);--radius:16px;--radius-sm:10px;--maxw:1200px;--sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body{background:var(--c-deep);color:var(--c-ice);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{max-width:var(--maxw);margin:0 auto;padding:0 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