#app{font-family:Arial,sans-serif;width:100%;margin:0 auto;padding:0;display:flex;flex-direction:column;min-height:100vh;box-sizing:border-box}.app-content{display:flex;flex-direction:column}.site-footer{flex-shrink:0;padding:14px 16px;text-align:center;background:#f7f7f8;border-top:1px solid #ececec;font-size:12px;color:#6b7280;line-height:1.6;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px}.site-footer .site-owner{color:#6b7280;white-space:nowrap}.site-footer .footer-sep{color:#d1d5db;-webkit-user-select:none;user-select:none}.site-footer .beian-link{display:inline-flex;align-items:center;gap:6px;color:#6b7280;text-decoration:none;transition:color .2s ease;-webkit-tap-highlight-color:transparent}.site-footer .beian-link:hover,.site-footer .beian-link:focus-visible{color:#1f2937;outline:none}.site-footer .beian-icon{display:inline-flex;align-items:center;justify-content:center;color:#9ca3af}@media (prefers-color-scheme: dark){.site-footer{background:#1a1a1a;border-top-color:#2a2a2a;color:#9ca3af}.site-footer .site-owner{color:#9ca3af}.site-footer .footer-sep{color:#4b5563}.site-footer .beian-link{color:#9ca3af}.site-footer .beian-link:hover,.site-footer .beian-link:focus-visible{color:#e5e7eb}.site-footer .beian-icon{color:#6b7280}}@media (max-width: 480px){.site-footer{padding:12px;font-size:11px}.site-footer .beian-link{gap:4px}}