.stuab23-install-banner{position:fixed;left:14px;right:14px;bottom:-220px;z-index:999999;transition:.35s ease}.stuab23-install-banner.show{bottom:14px}.stuab23-install-card{position:relative;background:var(--stuab23-banner-bg,#000);color:var(--stuab23-banner-text,#fff);border-radius:var(--stuab23-radius,28px);padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:var(--stuab23-shadow,0 22px 70px rgba(0,0,0,.35));border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(12px)}.stuab23-title{font-weight:900;font-size:22px;line-height:1.15}.stuab23-text{font-size:16px;opacity:.86;line-height:1.4;margin-top:8px}.stuab23-install-btn{background:var(--stuab23-button-bg,#008b83)!important;border:none!important;padding:14px 24px!important;border-radius:999px!important;color:var(--stuab23-button-text,#fff)!important;font-weight:900!important;cursor:pointer!important;box-shadow:none!important;text-decoration:none!important}.stuab23-close{position:absolute;top:12px;right:14px;width:42px;height:42px;border-radius:14px;background:rgba(255,255,255,.06)!important;border:1px solid rgba(255,255,255,.18)!important;color:var(--stuab23-banner-text,#fff)!important;cursor:pointer;font-size:20px;line-height:1}.stuab23-install-page{max-width:980px;margin:auto;padding:32px 20px}.stuab23-install-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.stuab23-panel-box{background:#fff;border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.08)}.stuab23-qr-box img{max-width:360px;width:100%;height:auto}.stuab23-install-help{position:fixed;inset:0;z-index:1000000;display:none;align-items:center;justify-content:center;padding:20px}.stuab23-install-help.show{display:flex}.stuab23-help-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.58);backdrop-filter:blur(4px)}.stuab23-help-card{position:relative;width:min(520px,92vw);background:var(--stuab23-help-bg,#fff);color:var(--stuab23-help-text,#111827);border-radius:var(--stuab23-radius,28px);padding:30px;box-shadow:0 24px 70px rgba(0,0,0,.28)}.stuab23-help-eyebrow{color:var(--stuab23-button-bg,#008b83);font-size:12px;letter-spacing:3px;font-weight:900;text-transform:uppercase;margin-bottom:10px}.stuab23-help-card h3{margin:0 42px 12px 0;font-size:28px;line-height:1.15;color:var(--stuab23-help-text,#111827)}.stuab23-help-card p{margin:0;font-size:16px;line-height:1.55;color:var(--stuab23-help-text,#111827);opacity:.82}.stuab23-help-close{position:absolute;top:16px;right:16px;width:42px;height:42px;border-radius:14px;border:1px solid rgba(0,0,0,.12);background:transparent;color:var(--stuab23-help-text,#111827);font-size:20px;cursor:pointer}.stuab23-help-actions{margin-top:22px;display:flex;justify-content:flex-end}.stuab23-help-actions button{border:0;border-radius:999px;background:var(--stuab23-button-bg,#008b83);color:var(--stuab23-button-text,#fff);padding:12px 24px;font-weight:900;cursor:pointer}@media(max-width:800px){.stuab23-install-grid{grid-template-columns:1fr}.stuab23-install-card{align-items:flex-start;flex-direction:column}}@media(max-width:600px){.stuab23-install-banner{left:18px;right:18px}.stuab23-install-card{border-radius:var(--stuab23-radius,28px);padding:28px 28px 26px;padding-right:68px}.stuab23-install-btn{font-size:17px!important;padding:16px 30px!important}.stuab23-help-card{border-radius:26px;padding:28px 24px}}