:root{--brand-muted: #6f6f6f;--brand-cream: #efefd2;--brand-border: #dcdcdc}.dev-nav{display:flex;flex-wrap:wrap;gap:4px 16px;padding:10px 16px;border-bottom:1px solid var(--brand-border);background:#fff;font:14px/1.4 system-ui,sans-serif}.dev-nav a{color:#303030;text-decoration:none}.dev-nav a[aria-current=page]{font-weight:600;text-decoration:underline}.slot-frame{width:100%;max-width:420px;overflow:hidden;border-radius:8px;background:#f1f1f1}.slot-frame img{width:100%;height:100%;object-fit:cover;display:block}.portal-preview{position:relative;width:100%;min-height:120px}.portal-preview-frame{margin:0 auto;overflow:hidden;border:1px solid var(--p-color-border, #e3e3e3);border-radius:12px;background:#fff}.portal-preview-frame iframe{display:block;border:0;transform-origin:0 0}.portal-preview-loading{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;background:#ffffffd9}.slot-placeholder{display:flex;align-items:center;justify-content:center;height:100%;font:13px/1.4 system-ui,sans-serif;color:var(--brand-muted);background:var(--brand-cream)}