:root{--primary: #4CAF50;--primary-dark: #2e7d32;--primary-light: #e8f5e9;--orange: #FF9800;--bg: #f5f7fa;--text: #303133;--text-secondary: #606266;--border: #dcdfe6;--white: #ffffff;--danger: #f56c6c;--warning: #e6a23c;--sidebar-width: 220px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;color:var(--text);background:var(--bg)}.hidden{display:none!important}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f5e9,#c8e6c9,#a5d6a7)}.login-card{width:400px;background:var(--white);border-radius:8px;padding:32px;box-shadow:0 8px 24px #0000001f}.login-header{text-align:center;margin-bottom:28px}.login-logo{font-size:40px;margin-bottom:8px}.login-header h2{color:var(--primary-dark);margin-bottom:4px}.login-header p{color:var(--text-secondary);font-size:13px}.login-hint{margin-top:8px;font-size:12px;line-height:1.5;color:var(--warning)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--primary-dark);color:#e8f5e9;flex-shrink:0;overflow-y:auto}.logo{padding:20px 16px;font-size:15px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.15)}.nav-menu{padding:8px 0}.nav-item,.nav-group-title{display:block;padding:10px 20px;color:#e8f5e9;text-decoration:none;font-size:14px;cursor:pointer;border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:#ffffff1a}.nav-item.active{background:#fff3;color:#fff;font-weight:600}.nav-group-title{font-size:12px;color:#fff9;padding-top:16px;cursor:default}.main-wrap{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:56px;background:var(--white);box-shadow:0 1px 4px #00000014;display:flex;align-items:center;justify-content:space-between;padding:0 24px}.page-breadcrumb{font-size:16px;font-weight:500}.topbar-right{display:flex;align-items:center;gap:12px}.user-name{color:var(--text-secondary)}.main-content{flex:1;padding:20px;overflow-y:auto}.page-container{background:var(--white);border-radius:8px;padding:20px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.page-title{font-size:18px;font-weight:600}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;color:var(--text-secondary);font-size:13px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:4px;font-size:14px}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}.form-inline{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:16px}.form-inline .form-group{margin-bottom:0}.image-upload{display:flex;flex-direction:column;gap:10px}.image-upload-preview{min-height:180px;border:1px dashed var(--border);border-radius:6px;background:#fafafa;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-upload-preview img{display:block;width:100%;max-height:260px;object-fit:contain;background:#fff}.image-upload-placeholder{padding:24px 12px;color:var(--text-secondary);font-size:13px}.image-upload-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.image-upload-tip,.image-upload-url{color:var(--text-secondary);font-size:12px;word-break:break-all}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:4px;border:1px solid var(--border);background:var(--white);color:var(--text);font-size:14px;cursor:pointer;transition:all .2s}.btn:hover{opacity:.9}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-link{border:none;background:none;color:var(--primary);padding:4px 8px}.btn-link.danger{color:var(--danger)}.btn-block{width:100%}.btn-sm{padding:4px 10px;font-size:12px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid #ebeef5}th{background:#fafafa;font-weight:600;color:var(--text-secondary);font-size:13px}tr:hover td{background:#fafcff}.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px}.tag-success{background:#e8f5e9;color:var(--primary-dark)}.tag-info{background:#f4f4f5;color:#909399}.tag-warning{background:#fdf6ec;color:var(--warning)}.tag-danger{background:#fef0f0;color:var(--danger)}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.stat-card{background:var(--primary-light);border-radius:8px;padding:20px;border:1px solid #c8e6c9}.stat-card .value{font-size:24px;font-weight:700;color:var(--primary-dark)}.stat-card .label{font-size:13px;color:var(--text-secondary);margin-top:4px}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.info-card{border:1px solid var(--border);border-radius:8px;overflow:hidden}.info-card-header{padding:12px 16px;background:#fafafa;font-weight:600;border-bottom:1px solid var(--border)}.info-card-body{padding:0}.info-row{display:flex;padding:10px 16px;border-bottom:1px solid #f0f0f0}.info-row:last-child{border-bottom:none}.info-row .label{width:140px;color:var(--text-secondary);flex-shrink:0}.grid-preview{display:grid;gap:6px;max-height:500px;overflow-y:auto}.grid-cell{padding:8px 4px;text-align:center;font-size:11px;border-radius:4px;background:#e8f5e9;color:var(--primary-dark);border:1px solid #c8e6c9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grid-cell.occupied{background:#fff3e0;color:#e65100;border-color:#ffcc80}.grid-editor{display:grid;grid-template-columns:1fr 2fr;gap:20px}.card{border:1px solid var(--border);border-radius:8px;overflow:hidden}.card-header{padding:12px 16px;background:#fafafa;font-weight:600;border-bottom:1px solid var(--border)}.card-body{padding:16px}.alert-info{padding:12px;background:#ecf5ff;border:1px solid #b3d8ff;border-radius:4px;color:#409eff;font-size:13px;margin-top:12px}.empty{text-align:center;padding:40px;color:var(--text-secondary)}.pagination{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin-top:16px}.pagination span{color:var(--text-secondary);font-size:13px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-box{background:var(--white);border-radius:8px;width:90%;max-width:560px;max-height:90vh;overflow:hidden;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h3{font-size:16px}.modal-close{border:none;background:none;font-size:24px;cursor:pointer;color:#909399;line-height:1}.modal-body{padding:20px;overflow-y:auto;flex:1}.modal-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}#toast-container{position:fixed;top:20px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:4px;color:#fff;font-size:14px;box-shadow:0 4px 12px #00000026;animation:slideIn .3s ease}.toast-success{background:var(--primary)}.toast-error{background:var(--danger)}.toast-warning{background:var(--warning)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.loading{text-align:center;padding:40px;color:var(--text-secondary)}@media(max-width:768px){.stat-row{grid-template-columns:repeat(2,1fr)}.info-grid,.grid-editor{grid-template-columns:1fr}.sidebar{position:fixed;z-index:100;height:100vh}}