.skeleton{background:var(--background-muted,#f3f4f6);background:linear-gradient(90deg, var(--background-muted,#f3f4f6) 25%, var(--border,#e5e7eb) 50%, var(--background-muted,#f3f4f6) 75%);background-size:200% 100%;border-radius:4px;animation:1.5s ease-in-out infinite skeleton-loading}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.welcome-skeleton{text-align:center;flex-direction:column;align-items:center;width:min(100%,800px);margin-top:40px;display:flex}.welcome-skeleton .avatar-skeleton{border-radius:50%;width:128px;height:128px;margin-bottom:18px}.welcome-skeleton .title-skeleton{border-radius:6px;width:200px;height:32px;margin-bottom:6px}.welcome-skeleton .subtitle-skeleton{border-radius:4px;width:300px;height:20px;margin-bottom:14px}.welcome-skeleton .desc-skeleton{border-radius:6px;width:min(100%,640px);height:60px;margin-bottom:28px}.welcome-skeleton .input-skeleton{border-radius:8px;width:100%;height:60px;margin-bottom:20px}.welcome-skeleton .suggestions-skeleton{flex-wrap:wrap;justify-content:center;gap:12px;width:100%;display:flex}.welcome-skeleton .suggestion-chip-skeleton{border-radius:20px;width:150px;height:40px}.message-skeleton-container{opacity:0;flex-direction:column;gap:24px;width:100%;max-width:800px;padding:20px 0;animation:.2s ease-in .15s both skeletonFadeIn;display:flex}@keyframes skeletonFadeIn{0%{opacity:0}to{opacity:1}}.message-skeleton{flex-direction:column;gap:8px;max-width:80%;display:flex}.message-skeleton.user{align-self:flex-end;align-items:flex-end}.message-skeleton.assistant{align-self:flex-start;align-items:flex-start}.message-skeleton .bubble-skeleton{border-radius:12px;width:250px;height:48px}.message-skeleton.user .bubble-skeleton{background-color:var(--brand-primary,#e5e7eb);opacity:.5;border-bottom-right-radius:4px}.message-skeleton.assistant .bubble-skeleton{border-bottom-left-radius:4px;width:350px}.message-skeleton .time-skeleton{border-radius:4px;width:60px;height:12px}.full-page-skeleton{background:var(--background-primary,#fff);width:100vw;height:100vh;display:flex;overflow:hidden}.full-page-skeleton .sidebar-skeleton{background:var(--background-secondary,#f9fafb);border-right:1px solid var(--border,#f3f4f6);flex-direction:column;gap:20px;width:280px;height:100%;padding:20px;display:flex}.sidebar-skeleton .nav-item-skeleton{border-radius:6px;width:100%;height:32px}.full-page-skeleton .main-skeleton{flex-direction:column;flex:1;justify-content:center;align-items:center;padding:20px;display:flex}@media (max-width:768px){.full-page-skeleton .sidebar-skeleton{display:none}}