* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #0B1F33; color: #fff; font-family: -apple-system, BlinkMacSystemFont, sans-serif; }
a { color: #4A9EFF; }

/* 布局 */
.layout { display: flex; min-height: 100vh; }

/* 侧边栏 */
.sidebar { width: 220px; background: #0D2B45; padding: 0; display: flex; flex-direction: column; border-right: 1px solid rgba(255,255,255,0.08); }
.brand { padding: 20px; font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.menu { padding: 14px 20px; cursor: pointer; transition: all 0.2s; font-size: 14px; color: rgba(255,255,255,0.7); }
.menu:hover { background: rgba(255,255,255,0.05); color: #fff; }
.menu.active { background: rgba(74,158,255,0.15); color: #4A9EFF; border-left: 3px solid #4A9EFF; }
.logout { margin-top: auto; color: #f66; }

/* 主区域 */
.main { flex: 1; display: flex; flex-direction: column; }
.topbar { height: 60px; background: #0D2B45; padding: 0 24px; display: flex; align-items: center; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.container { flex: 1; padding: 28px; overflow: auto; }

/* 页面 */
.page { display: flex; flex-direction: column; gap: 24px; }
.page-title { font-size: 26px; font-weight: 600; margin-bottom: 8px; }

/* 卡片 */
.card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 24px; }
.card h3 { margin-bottom: 16px; font-size: 15px; font-weight: 500; }

/* 统计卡片 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.stat-card { background: rgba(255,255,255,0.08); border-radius: 14px; padding: 24px; display: flex; align-items: center; gap: 16px; }
.stat-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; }
.stat-icon.blue { background: rgba(74,158,255,0.2); }
.stat-icon.green { background: rgba(0,200,100,0.2); }
.stat-icon.orange { background: rgba(255,165,0,0.2); }
.stat-info h4 { font-size: 26px; font-weight: 600; color: #4A9EFF; }
.stat-info p { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 2px; }

/* Agent */
.agent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.agent { background: rgba(255,255,255,0.05); border-radius: 12px; padding: 16px; display: flex; align-items: center; gap: 12px; cursor: pointer; transition: all 0.2s; }
.agent:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.agent-avatar { font-size: 28px; }
.agent small { display: block; font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 2px; }

/* 上传 */
.upload-area { border: 2px dashed rgba(255,255,255,0.15); border-radius: 14px; padding: 50px; text-align: center; cursor: pointer; transition: all 0.2s; }
.upload-area:hover { border-color: #4A9EFF; background: rgba(74,158,255,0.05); }
.upload-icon { font-size: 42px; margin-bottom: 12px; }
.upload-title { font-size: 17px; margin-bottom: 6px; }
.upload-sub { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.file-row, .task-row { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }

/* 对话 */
.chat-box { display: flex; flex-direction: column; height: 58vh; }
.chat-messages { flex: 1; overflow-y: auto; padding: 10px; }
.msg { max-width: 68%; padding: 12px 16px; border-radius: 12px; margin: 8px 0; line-height: 1.5; }
.msg.user { background: #4A9EFF; margin-left: auto; }
.msg.ai { background: rgba(255,255,255,0.1); }
.chat-input { display: flex; gap: 10px; padding: 14px; border-top: 1px solid rgba(255,255,255,0.08); }
.chat-input input { flex: 1; padding: 12px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.08); color: #fff; }
.chat-input button { padding: 12px 24px; background: #4A9EFF; border: none; border-radius: 8px; color: #fff; cursor: pointer; }

/* 按钮 */
button { padding: 12px 20px; background: #4A9EFF; border: none; border-radius: 8px; color: #fff; cursor: pointer; font-size: 14px; }
button:hover { opacity: 0.9; }
input[type="text"], input[type="password"] { padding: 10px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.08); color: #fff; font-size: 14px; }
input::placeholder { color: rgba(255,255,255,0.4); }

/* 调试 */
#debugBox { position: fixed; bottom: 10px; right: 10px; width: 200px; height: 90px; background: rgba(0,0,0,0.85); color: #0f0; font-size: 10px; padding: 8px; overflow: auto; border-radius: 8px; font-family: monospace; }

/* 响应式 */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .stats-grid, .agent-grid { grid-template-columns: 1fr; }
}