.developer-frame{position:relative;max-width:700px;margin:0 auto;border:1px solid var(--line,#cfdbcb);border-radius:8px;overflow:hidden;background:var(--panel,#fbfcf8)}
.developer-scroll{overflow-y:auto;overscroll-behavior:contain;scroll-behavior:auto;min-height:110px;max-height:min(56dvh,420px);padding:16px 20px 110px;scroll-padding-bottom:100px;touch-action:pan-y;overflow-anchor:none}
.developer-body{font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.85;overflow-wrap:anywhere}
.developer-body h2{font-family:var(--pixel-font),monospace;font-size:18px;margin:24px 0 10px}
.developer-confirm-dock{position:absolute;bottom:0;right:0;left:0;display:flex;justify-content:flex-end;align-items:center;gap:8px;padding:12px max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom));background:var(--panel,#fbfcf8);border-top:1px solid var(--line,#cfdbcb)}
.developer-progress{flex:1;margin:0!important;font-size:13px;line-height:1.6;color:var(--muted,#56634e)}
.developer-confirm{min-height:46px;min-width:108px;flex-shrink:0;padding:10px 14px;border:2px solid #176348;background:#1e7554;color:#fff;border-radius:5px;box-shadow:none;font-family:var(--pixel-font),monospace}
.developer-confirm:disabled{opacity:.65;cursor:not-allowed}.developer-confirm:hover:enabled{background:#165e43}.developer-confirm:active:enabled{background:#104c35}
.developer-confirm:focus-visible,.developer-scroll:focus-visible{outline:3px solid #d09b24;outline-offset:-3px}
:root[data-theme="dark"] .developer-frame,:root[data-theme="dark"] .developer-confirm-dock{background:#182a24;border-color:#496355}
:root[data-theme="dark"] .developer-progress{color:#c4d5ca}:root[data-theme="dark"] .developer-confirm{background:#2c805c;border-color:#95d4aa}
@media(max-width:420px){.developer-scroll{padding-left:12px;padding-right:12px}.developer-body{font-size:15px}.developer-confirm-dock{gap:6px;padding-left:10px}.developer-confirm{min-width:100px;padding:10px}.developer-progress{font-size:12px}}

/* Short landscape keeps the reading controls inside the visible document. */
@media(max-height:520px) and (min-width:560px){
 body.developer-reading .shell{padding-top:6px}
 body.developer-reading .shell>header{display:none}
 body.developer-reading #infoPlay{padding:12px}
 body.developer-reading .info-head{gap:8px;padding-bottom:8px}
 body.developer-reading .info-head h1{font-size:22px}
 body.developer-reading .info-head small:empty{display:none}
 body.developer-reading .info-article{margin-top:10px}
 body.developer-reading #infoPlay>.site-info-links{display:none}
}