.app-shell{min-height:100vh;min-height:100dvh;box-sizing:border-box;padding-bottom:calc(48px + env(safe-area-inset-bottom, 0px))}.beian-footer{position:fixed;left:0;right:0;bottom:0;height:48px;padding:8px 12px;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;box-sizing:border-box;font-size:12px;color:rgba(0,0,0,.6);background:hsla(0,0%,100%,.92);border-top:1px solid rgba(0,0,0,.08);backdrop-filter:blur(8px);padding-bottom:calc(8px + env(safe-area-inset-bottom, 0px))}.beian-item{display:inline-flex;gap:6px;align-items:center;white-space:nowrap}.beian-link{color:inherit;text-decoration:none}.beian-link:hover{text-decoration:underline}.btn{display:inline-block;padding:10px 20px;font-size:14px;font-weight:700;border:none;border-radius:10px;background:#111827;color:#fff;cursor:pointer;text-decoration:none;text-align:center;line-height:1.4;transition:background .15s,opacity .15s}.btn:hover{background:#1f2937}.btn:active{background:#030712}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-ghost{display:inline-block;padding:8px 14px;font-size:13px;font-weight:500;border:1px solid rgba(0,0,0,.18);border-radius:8px;background:transparent;color:#374151;cursor:pointer;text-decoration:none;text-align:center;line-height:1.4;transition:background .15s,border-color .15s}.btn-ghost:hover{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.3)}.btn-ghost:active{background:rgba(0,0,0,.08)}.btn-ghost:disabled{opacity:.45;cursor:not-allowed}.btn-danger{display:inline-block;padding:10px 20px;font-size:14px;font-weight:700;border:none;border-radius:10px;background:#b00020;color:#fff;cursor:pointer;text-decoration:none;text-align:center;line-height:1.4;transition:background .15s,opacity .15s}.btn-danger:hover{background:#c62828}.btn-danger:active{background:#8e001a}.btn-danger:disabled{opacity:.45;cursor:not-allowed}.btn-sm{padding:5px 10px;font-size:12px;font-weight:500;border-radius:6px}