html,body{margin:0;padding:0;min-height:100%;background:#05070f;color:#e8ecff;font-family:"Microsoft YaHei","PingFang SC",sans-serif}.app-shell{min-height:100vh;display:flex;align-items:center;justify-content:center}.shell-loader{text-align:center;padding:20px}.shell-spinner{width:36px;height:36px;margin:0 auto 12px;border-radius:50%;border:3px solid rgba(118,136,255,.25);border-top-color:#7c8dff;animation:shell-spin .9s linear infinite}.shell-text{margin:0;color:#a3afd9;font-size:14px}@keyframes shell-spin{to{transform:rotate(360deg)}}