:root{--primary:#1973bf;--primary-hover:#145d99;--primary-light:#e8f4fd;--danger:#f20000;--success:#38aa00;--warning:#ffbe0f;--bg:#f5f6f8;--bg-white:#fff;--bg-dark:#001529;--sidebar-bg:#001529;--sidebar-hover:#002140;--sidebar-active:#1973bf;--text-primary:#333;--text-secondary:#666;--text-muted:#999;--text-white:#fff;--border:#e8e8e8;--border-light:#f0f0f0;--radius:6px;--radius-sm:4px;--radius-lg:8px;--shadow:0 2px 8px #00000014;--shadow-lg:0 4px 16px #0000001f;--font-size:14px;--font-size-sm:12px;--font-size-lg:16px;--font-size-xl:20px;--font-size-2xl:24px;--sidebar-width:220px;--header-height:50px;--footer-height:36px}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{width:100%;height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:var(--font-size);color:var(--text-primary);background:var(--bg)}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#aaa}.app-layout{flex-direction:column;height:100vh;display:flex}.app-body{flex:1;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);color:var(--text-white);flex-direction:column;flex-shrink:0;display:flex;overflow-y:auto}.sidebar-logo{font-size:var(--font-size-xl);color:var(--text-white);letter-spacing:2px;text-align:center;border-bottom:1px solid #ffffff1a;align-items:center;gap:10px;padding:12px 20px;font-weight:700;display:flex}.sidebar-logo span{color:var(--primary)}.logo-img{border-radius:6px;width:32px;height:32px}.header-logo{border-radius:6px;flex-shrink:0;width:28px;height:28px}.sidebar-nav{flex:1;padding:8px 0}.sidebar-item{color:#ffffffb3;cursor:pointer;font-size:var(--font-size);border-left:3px solid #0000;align-items:center;gap:10px;padding:10px 20px;transition:all .2s;display:flex}.sidebar-item:hover{background:var(--sidebar-hover);color:var(--text-white)}.sidebar-item.active{background:var(--sidebar-active);color:var(--text-white);border-left-color:var(--text-white)}.sidebar-item-icon{text-align:center;width:18px;font-size:16px}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.main-header{height:var(--header-height);background:var(--bg-white);border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:0 24px;display:flex}.main-page{background:var(--bg);flex:1;padding:24px;overflow-y:auto}.btn{border-radius:var(--radius-sm);font-size:var(--font-size);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;padding:6px 16px;font-family:inherit;line-height:1.5;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-hover)}.btn-outline{color:var(--primary);border-color:var(--primary);background:#fff}.btn-outline:hover{background:var(--primary-light)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{font-size:var(--font-size-sm);padding:3px 10px}.btn-lg{font-size:var(--font-size-lg);padding:10px 24px}.btn-block{width:100%}.input{border:1px solid var(--border);border-radius:var(--radius-sm);font-size:var(--font-size);outline:none;width:100%;padding:6px 12px;font-family:inherit;transition:border .2s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #1973bf1a}.card{background:var(--bg-white);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:16px;padding:20px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:var(--font-size)}th,td{text-align:left;border-bottom:1px solid var(--border-light);padding:10px 12px}th{color:var(--text-secondary);font-weight:600;font-size:var(--font-size-sm);background:#fafafa}tr:hover td{background:var(--primary-light)}.badge{font-size:var(--font-size-sm);border-radius:10px;padding:2px 10px;font-weight:500;display:inline-block}.badge-pending{color:#d48806;background:#fff7e6}.badge-processing{color:#1890ff;background:#e6f7ff}.badge-shipped{color:#52c41a;background:#f6ffed}.badge-completed{color:var(--success);background:#f6ffed}.badge-cancelled{color:var(--danger);background:#fff2f0}.tag{border-radius:var(--radius-sm);margin-right:4px;padding:2px 8px;font-size:12px;display:inline-block}.tag-blue{background:var(--primary-light);color:var(--primary)}.flex{display:flex}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.flex-1{flex:1}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-sm{font-size:var(--font-size-sm)}.text-lg{font-size:var(--font-size-lg)}.font-bold{font-weight:600}.pointer{cursor:pointer}.grid-2{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}@media (width<=1200px){.grid-4{grid-template-columns:repeat(2,1fr)}}.page-title{font-size:var(--font-size-xl);color:var(--text-primary);margin-bottom:20px;font-weight:600}.stat-card{background:var(--bg-white);border-radius:var(--radius);border:1px solid var(--border);padding:20px}.stat-label{font-size:var(--font-size-sm);color:var(--text-muted);margin-bottom:8px}.stat-value{font-size:var(--font-size-2xl);color:var(--text-primary);font-weight:700}.stat-change{font-size:var(--font-size-sm);margin-top:4px}.stat-change.up{color:var(--success)}.stat-change.down{color:var(--danger)}.lang-switch{background:var(--border-light);border-radius:var(--radius-sm);gap:4px;padding:2px;display:flex}.lang-btn{border-radius:var(--radius-sm);cursor:pointer;font-size:var(--font-size-sm);color:var(--text-secondary);background:0 0;border:none;padding:3px 10px}.lang-btn.active{color:var(--primary);background:#fff;font-weight:600;box-shadow:0 1px 3px #0000001a}.role-toggle{background:var(--border-light);border-radius:var(--radius-sm);gap:2px;padding:2px;display:flex}.role-btn{cursor:pointer;font-size:var(--font-size-sm);color:var(--text-secondary);white-space:nowrap;background:0 0;border:none;border-radius:3px;padding:3px 10px;transition:all .2s}.role-btn.active{color:var(--primary);background:#fff;font-weight:600;box-shadow:0 1px 3px #0000001a}.role-icon{vertical-align:middle;flex-shrink:0;margin-right:2px}.role-btn.active .role-icon{color:var(--primary)}