.lang-gate{position:fixed;inset:0;z-index:2147483646;isolation:isolate;pointer-events:auto;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(ellipse 70% 55% at 50% 35%,#0a0c10 0,#000 72%);border:1px solid rgba(255,255,255,.06)}.lang-gate-inner{width:100%;max-width:420px;text-align:center}.lang-gate-title{margin:0;font-family:var(--ibm-mono),ui-monospace,monospace;font-size:clamp(11px,2.8vw,13px);letter-spacing:.34em;color:#e8eaed}.lang-gate-sub{margin:18px 0 0;font-family:var(--font-grotesk),system-ui,sans-serif;font-size:11px;line-height:1.65;letter-spacing:.06em;color:#6e757e}.lang-gate-actions{margin-top:36px;display:flex;flex-direction:column;gap:14px}.lang-gate-actions,.lang-gate-btn{position:relative;z-index:2;pointer-events:auto!important}.lang-gate-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;margin:0;box-sizing:border-box;font-family:var(--ibm-mono),ui-monospace,monospace;font-size:11px;letter-spacing:.22em;min-height:52px;padding:14px 22px;cursor:pointer;border:1px solid rgba(255,255,255,.14);background:rgba(8,10,12,.92);color:#c5cdd6;touch-action:manipulation;-webkit-tap-highlight-color:transparent;text-decoration:none;display:block;width:100%;text-align:center;transition:border-color .2s ease,background .2s ease,color .2s ease}.lang-gate-btn:hover{border-color:rgba(255,255,255,.28);color:#eef1f5}.lang-gate-btn-en:hover{border-color:rgba(130,170,210,.45)}.lang-gate-btn-zh:hover{border-color:rgba(180,130,90,.45)}.lang-gate-btn-main{display:block}