.xb-install-trigger{border:1px solid rgba(255,255,255,.45);border-radius:20px;background:rgba(255,255,255,.14);color:#fff;padding:6px 12px;font:inherit;font-size:12px;white-space:nowrap;cursor:pointer}
.xb-install-nav{display:none}
dialog.xbi-dialog{position:fixed;inset:0;width:min(480px,calc(100vw - 28px));max-width:480px;max-height:calc(100dvh - 40px);margin:auto;padding:0;overflow:auto;border:1px solid rgba(255,255,255,.9);border-radius:25px;background:linear-gradient(145deg,rgba(255,255,255,.98),rgba(237,244,255,.97));color:#142b4c;box-shadow:0 24px 90px rgba(24,64,130,.24);font:14px/1.65 system-ui,sans-serif;box-sizing:border-box;backdrop-filter:blur(22px);overscroll-behavior:contain}
.xbi-dialog::backdrop{background:rgba(32,51,83,.32);backdrop-filter:blur(5px)}
.xbi-dialog:not([open]){display:none}
.xbi-dialog *{box-sizing:border-box}
.xbi-inner{padding:28px}
.xbi-close{position:absolute;right:16px;top:12px;width:34px;height:34px;border:0;border-radius:50%;background:#edf2fa;color:#506582;font:24px/1 system-ui;cursor:pointer}
.xbi-brand{display:flex;align-items:center;gap:16px;margin:14px 0 22px}
.xbi-brand img{width:64px;height:64px;border-radius:16px;box-shadow:0 6px 20px #215add22}
.xbi-brand h2{margin:0;font-size:23px;line-height:1.4;color:#173763}
.xbi-brand p{margin:4px 0 0;font-size:13px;color:#60738d}
.xbi-install{width:100%;padding:12px 16px;border:0;border-radius:14px;background:#215add;color:white;font:600 15px/1.5 system-ui;cursor:pointer;box-shadow:0 6px 15px #215add24}
.xbi-install:disabled{background:#6985b5;cursor:default}
.xbi-guide{margin:18px 0;padding:16px 18px;border:1px solid #dae5f6;border-radius:16px;background:rgba(255,255,255,.8)}
.xbi-guide h3{font-size:14px;margin:0 0 8px}
.xbi-guide ol{margin:0;padding-left:22px;color:#435c7e}
.xbi-guide li+li{margin-top:7px}
.xbi-note{margin:12px 0;color:#697c95;font-size:12px}
.xbi-status{margin:10px 0;color:#2457aa;font-size:13px;min-height:22px}
.xbi-links{display:flex;flex-wrap:wrap;gap:10px;border-top:1px solid #dce5f3;padding-top:16px}
.xbi-links button,.xbi-links a{padding:8px 12px;border:1px solid #d9e3f3;border-radius:10px;background:white;color:#285694;font:13px/1.4 system-ui;cursor:pointer;text-decoration:none}
.xbi-link-text{width:100%;padding:9px;border:1px solid #d9e3f3;border-radius:8px;font:12px system-ui;color:#435c7e}
.xbi-dialog :focus-visible,.xb-install-trigger:focus-visible{outline:3px solid #7cb1ff;outline-offset:3px}
@media(max-width:1024px){.xb-install-trigger{display:none}.xb-install-nav{display:list-item}}
@media(max-width:480px){.xbi-inner{padding:24px 20px}.xbi-brand h2{font-size:21px}.xbi-brand{gap:12px}.xbi-brand img{width:58px;height:58px}}
@media(prefers-reduced-motion:reduce){.xbi-dialog{scroll-behavior:auto}}