:root{--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-card:#16213e;--bg-input:#1a1a3e;--text-primary:#e0e0f0;--text-secondary:#88a;--accent:#6c63ff;--accent-hover:#7b73ff;--accent-glow:#6c63ff4d;--danger:#ff4757;--success:#2ed573;--warning:#ffa502;--border:#2a2a4a;--radius:12px;--radius-sm:8px;--sidebar-width:240px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}#app{min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.login-page{background:linear-gradient(135deg,#0f0f1a 0%,#1a1a3e 50%,#0f0f1a 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);width:400px;max-width:90vw;box-shadow:0 0 60px var(--accent-glow);padding:48px 40px}.login-card h1{text-align:center;background:linear-gradient(135deg, var(--accent), #a78bfa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:28px}.login-card .subtitle{text-align:center;color:var(--text-secondary);margin-bottom:32px;font-size:14px}.layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.sidebar-logo{background:linear-gradient(135deg, var(--accent), #a78bfa);-webkit-text-fill-color:transparent;border-bottom:1px solid var(--border);-webkit-background-clip:text;background-clip:text;padding:20px;font-size:20px;font-weight:700}.sidebar-nav{flex:1;padding:12px 8px}.sidebar-nav a{border-radius:var(--radius-sm);color:var(--text-secondary);align-items:center;gap:10px;margin-bottom:2px;padding:10px 12px;font-size:14px;text-decoration:none;transition:all .2s;display:flex}.sidebar-nav a:hover{background:var(--bg-card);color:var(--text-primary)}.sidebar-nav a.active{background:var(--accent);color:#fff}.sidebar-nav .nav-icon{text-align:center;width:24px;font-size:18px}.sidebar-user{border-top:1px solid var(--border);align-items:center;gap:10px;padding:16px;display:flex}.sidebar-user .avatar{background:var(--accent);border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:600;display:flex}.sidebar-user .user-info{flex:1;min-width:0}.sidebar-user .user-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.sidebar-user .user-role{color:var(--text-secondary);font-size:11px}.sidebar-user .logout-btn{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:4px;padding:4px 10px;font-size:12px;transition:all .2s}.sidebar-user .logout-btn:hover{border-color:var(--danger);color:var(--danger)}.main-content{margin-left:var(--sidebar-width);flex:1;min-height:100vh;padding:32px}input,textarea,select,button{font-family:inherit}input[type=text],input[type=password],input[type=number],textarea,select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);outline:none;padding:10px 14px;font-size:14px;transition:border-color .2s}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}textarea{resize:vertical;min-height:100px}select{cursor:pointer}.btn{border-radius:var(--radius-sm);cursor:pointer;border:none;align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);box-shadow:0 0 20px var(--accent-glow)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{opacity:.9}.btn-outline{border:1px solid var(--border);color:var(--text-primary);background:0 0}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.page-header{margin-bottom:24px}.page-header h2{margin-bottom:4px;font-size:24px;font-weight:600}.page-header p{color:var(--text-secondary);font-size:14px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.chat-container{flex-direction:column;height:calc(100vh - 120px);display:flex}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:16px 0;display:flex;overflow-y:auto}.chat-message{gap:12px;max-width:85%;display:flex}.chat-message.user{flex-direction:row-reverse;align-self:flex-end}.chat-message .msg-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;display:flex}.chat-message.user .msg-avatar{background:var(--accent)}.chat-message.assistant .msg-avatar{background:#2a2a4a}.chat-message .msg-content{background:var(--bg-secondary);border-radius:var(--radius-sm);white-space:pre-wrap;word-break:break-word;padding:12px 16px;font-size:14px;line-height:1.6}.chat-message.user .msg-content{background:var(--accent)}.chat-input-area{border-top:1px solid var(--border);padding:16px 0}.chat-input-row{gap:8px;display:flex}.chat-input-row textarea{flex:1;min-height:44px;max-height:120px;padding:10px 14px}.chat-model-select{flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.chat-model-select select{flex:1;width:auto;min-width:200px}.image-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:16px;display:grid}.image-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.image-card img{object-fit:cover;width:100%;height:200px}.image-card .card-actions{gap:8px;padding:10px;display:flex}.form-group{margin-bottom:16px}.form-group label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;display:block}.form-error{color:var(--danger);border-radius:var(--radius-sm);background:#ff47571a;margin-bottom:12px;padding:8px 12px;font-size:13px}.usage-bar{background:var(--bg-input);border-radius:4px;height:8px;margin:8px 0;overflow:hidden}.usage-bar-fill{border-radius:4px;height:100%;transition:width .3s}.usage-bar-fill.safe{background:var(--success)}.usage-bar-fill.warning{background:var(--warning)}.usage-bar-fill.danger{background:var(--danger)}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;padding:20px}.stat-card .stat-value{background:linear-gradient(135deg, var(--accent), #a78bfa);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:32px;font-weight:700}.stat-card .stat-label{color:var(--text-secondary);margin-top:4px;font-size:13px}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border);padding:10px 14px;font-size:13px}.data-table th{color:var(--text-secondary);font-weight:500}.audio-player{margin-top:16px}.audio-player audio{width:100%;margin-bottom:8px}.result-box{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);white-space:pre-wrap;word-break:break-word;max-height:400px;margin-top:16px;padding:16px;font-size:14px;line-height:1.6;overflow-y:auto}.loading{color:var(--text-secondary);align-items:center;gap:8px;font-size:14px;display:flex}.loading-dots:after{content:"";animation:1.5s infinite dots}@keyframes dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}.sidebar-usage{border-top:1px solid var(--border);padding:12px 16px}.sidebar-usage .usage-label{color:var(--text-secondary);margin-bottom:4px;font-size:11px}.sidebar-usage .usage-value{color:var(--text-primary);text-align:right;font-size:12px}@media (width<=768px){.sidebar{width:60px}.sidebar-logo{text-align:center;padding:16px 8px;font-size:16px}.sidebar-nav a span{display:none}.sidebar-nav a{justify-content:center;padding:12px}.sidebar-user .user-info,.sidebar-user .logout-btn{display:none}.main-content{margin-left:60px;padding:16px}.chat-message{max-width:95%}}