:root{--bg-primary: #0f1117;--bg-secondary: #161820;--bg-card: #1a1d28;--bg-card-hover: #1f2332;--bg-sidebar: #0d0f14;--bg-input: #12141e;--border: #2a2e3d;--border-light: #333850;--text-primary: #e8eaed;--text-secondary: #9aa0b0;--text-muted: #5c6174;--accent-blue: #4f8cff;--accent-blue-bg: rgba(79,140,255,.1);--red-up: #ef4444;--red-up-bg: rgba(239,68,68,.1);--green-down: #22c55e;--green-down-bg: rgba(34,197,94,.1);--yellow: #f59e0b;--orange: #f97316;--radius: 8px;--radius-lg: 12px;--sidebar-w: 220px;--header-h: 56px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}#root{height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.app-layout{display:flex;height:100vh}.sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);display:flex;flex-direction:column;border-right:1px solid var(--border);flex-shrink:0}.sidebar-logo{height:var(--header-h);display:flex;align-items:center;gap:10px;padding:0 20px;border-bottom:1px solid var(--border)}.sidebar-logo .icon{width:32px;height:32px;background:linear-gradient(135deg,var(--accent-blue),#6366f1);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff}.sidebar-logo span{font-size:16px;font-weight:700;letter-spacing:.5px}.nav{flex:1;padding:16px 12px;overflow-y:auto}.nav-section{margin-bottom:20px}.nav-section-title{font-size:11px;text-transform:uppercase;color:var(--text-muted);letter-spacing:1px;padding:0 8px;margin-bottom:8px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius);color:var(--text-secondary);cursor:pointer;transition:all .15s;font-size:14px;margin-bottom:2px;text-decoration:none;-webkit-user-select:none;user-select:none}.nav-item:hover{background:var(--bg-card);color:var(--text-primary)}.nav-item.active{background:var(--accent-blue-bg);color:var(--accent-blue)}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.connection-dot{width:8px;height:8px;border-radius:50%;background:var(--green-down);box-shadow:0 0 6px var(--green-down);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.main-area{flex:1;display:flex;flex-direction:column;overflow:hidden}.header{height:var(--header-h);background:var(--bg-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;flex-shrink:0}.header-left{display:flex;align-items:center;gap:16px}.page-title{font-size:18px;font-weight:600}.env-tag{padding:3px 10px;border-radius:4px;font-size:11px;font-weight:600;letter-spacing:.5px;background:var(--yellow);color:#000}.header-right{display:flex;align-items:center;gap:16px;font-size:13px}.header-stat{display:flex;flex-direction:column;align-items:flex-end}.header-stat .label{font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.header-stat .value{font-weight:600}.price-up{color:var(--red-up)}.price-down{color:var(--green-down)}.content{flex:1;overflow-y:auto;padding:20px 24px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card-title{font-size:14px;font-weight:600}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:16px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 20px}.stat-label{font-size:12px;color:var(--text-muted);margin-bottom:6px}.stat-value{font-size:24px;font-weight:700;letter-spacing:-.5px;font-family:monospace}.stat-sub{font-size:12px;margin-top:4px;display:flex;align-items:center;gap:4px}.pnl-up{color:var(--red-up)}.pnl-down{color:var(--green-down)}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;padding:10px 12px;color:var(--text-muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px;font-weight:500;border-bottom:1px solid var(--border)}td{padding:10px 12px;border-bottom:1px solid var(--border-light);white-space:nowrap}tr:hover td{background:var(--bg-card-hover)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent-blue)}.tag{padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600}.tag-long{background:var(--red-up-bg);color:var(--red-up)}.tag-short{background:var(--green-down-bg);color:var(--green-down)}.tag-active{background:var(--accent-blue-bg);color:var(--accent-blue)}.tag-pending{background:#f59e0b1a;color:var(--yellow)}.tag-filled{background:var(--green-down-bg);color:var(--green-down)}.btn{padding:8px 16px;border-radius:6px;border:none;cursor:pointer;font-size:13px;font-weight:500;transition:all .15s;font-family:inherit}.btn-primary{background:var(--accent-blue);color:#fff}.btn-primary:hover{background:#3d7df2}.btn-danger{background:var(--red-up);color:#fff}.btn-danger:hover{background:#dc2626}.btn-outline{background:transparent;border:1px solid var(--border-light);color:var(--text-secondary)}.btn-outline:hover{border-color:var(--accent-blue);color:var(--accent-blue)}.btn-sm{padding:4px 10px;font-size:12px}.btn-group{display:flex;gap:8px}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:5px;text-transform:uppercase;letter-spacing:.5px}input,select{width:100%;padding:10px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);font-size:13px;font-family:inherit;outline:none;transition:border-color .15s}input:focus,select:focus{border-color:var(--accent-blue)}.tabs{display:flex;gap:4px}.tabs button{padding:6px 14px;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:12px;font-weight:500;cursor:pointer;font-family:inherit}.tabs button.active{background:var(--accent-blue);border-color:var(--accent-blue);color:#fff}.alert{padding:12px 16px;border-radius:8px;font-size:13px;display:flex;align-items:center;gap:10px}.alert-warning{background:#f59e0b1a;border:1px solid rgba(245,158,11,.3);color:var(--yellow)}.alert-info{background:var(--accent-blue-bg);border:1px solid rgba(79,140,255,.3);color:var(--accent-blue)}.login-page{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg-primary)}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 36px;width:360px}.login-logo{display:flex;align-items:center;gap:12px;justify-content:center;margin-bottom:32px}.login-logo .icon{width:40px;height:40px;background:linear-gradient(135deg,var(--accent-blue),#6366f1);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff}.login-logo span{font-size:20px;font-weight:700;letter-spacing:.5px;color:var(--text-primary)}.login-form{display:flex;flex-direction:column;gap:18px}.login-form .form-group{display:flex;flex-direction:column;gap:8px}.login-form label{font-size:13px;color:var(--text-secondary);font-weight:500}.login-form input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;color:var(--text-primary);font-size:14px;outline:none;transition:border-color .2s}.login-form input:focus{border-color:var(--accent-blue)}.login-form input::placeholder{color:var(--text-muted)}.login-error{background:var(--red-up-bg);border:1px solid rgba(239,68,68,.3);color:var(--red-up);padding:10px 14px;border-radius:var(--radius);font-size:13px}.login-btn{background:var(--accent-blue);color:#fff;border:none;border-radius:var(--radius);padding:12px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s;margin-top:4px}.login-btn:hover{opacity:.9}.login-btn:disabled{opacity:.5;cursor:not-allowed}.logout-btn{background:none;border:1px solid var(--border);color:var(--text-secondary);padding:4px 10px;border-radius:4px;font-size:11px;cursor:pointer;transition:all .2s}.logout-btn:hover{border-color:var(--red-up);color:var(--red-up)}