:root{--bg: #FAFBFC;--bg-card: #FFFFFF;--bg-sidebar: #FFFFFF;--bg-hover: #F5F7FA;--bg-active: #F0F4F8;--bg-input: #FFFFFF;--border: #E2E8F0;--border-focus: #64748B;--text-primary: #1A202C;--text-secondary: #4A5568;--text-tertiary: #94A3B8;--accent: #2D3748;--accent-light: #4A5568;--blue: #3B82F6;--blue-light: #EBF5FF;--green: #22C55E;--green-light: #F0FDF4;--orange: #F59E0B;--orange-light: #FFFBEB;--red: #EF4444;--red-light: #FEF2F2;--purple: #8B5CF6;--purple-light: #F5F3FF;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.04);--radius: 6px;--radius-lg: 10px;--font: "Noto Sans TC", "Noto Sans", -apple-system, sans-serif;--transition: .15s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text-primary);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}.sidebar-logo{padding:20px 20px 16px;border-bottom:1px solid var(--border)}.sidebar-logo h1{font-size:15px;font-weight:600;color:var(--accent);letter-spacing:.5px}.sidebar-logo span{font-size:11px;color:var(--text-tertiary);display:block;margin-top:2px}.sidebar-nav{flex:1;overflow-y:auto;padding:12px 0}.nav-group{margin-bottom:4px}.nav-group-title{padding:8px 20px 4px;font-size:10px;font-weight:600;text-transform:uppercase;color:var(--text-tertiary);letter-spacing:1px}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 20px;color:var(--text-secondary);text-decoration:none;font-size:13.5px;font-weight:400;cursor:pointer;transition:all var(--transition);border-left:3px solid transparent}.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background:var(--bg-active);color:var(--text-primary);font-weight:500;border-left-color:var(--accent)}.nav-item svg{width:18px;height:18px;opacity:.6;flex-shrink:0}.nav-item.active svg{opacity:1}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.sidebar-user{font-size:12px;color:var(--text-secondary)}.sidebar-footer select{font-size:11px;padding:2px 4px;border:1px solid var(--border);border-radius:4px;background:var(--bg);cursor:pointer}.main-content{flex:1;margin-left:240px;min-height:100vh}.page-header{padding:20px 28px 16px;border-bottom:1px solid var(--border);background:var(--bg-card);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}.page-header h2{font-size:18px;font-weight:600;color:var(--accent)}.page-header-actions{display:flex;gap:8px}.page-body{padding:24px 28px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.card-header h3{font-size:14px;font-weight:600}.card-body{padding:20px}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:500;font-family:var(--font);border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text-primary);cursor:pointer;transition:all var(--transition);white-space:nowrap}.btn:hover{background:var(--bg-hover);border-color:var(--border-focus)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-light)}.btn-blue{background:var(--blue);color:#fff;border-color:var(--blue)}.btn-blue:hover{opacity:.9}.btn-green{background:var(--green);color:#fff;border-color:var(--green)}.btn-green:hover{opacity:.9}.btn-orange{background:var(--orange);color:#fff;border-color:var(--orange)}.btn-orange:hover{opacity:.9}.btn-red{background:var(--red);color:#fff;border-color:var(--red)}.btn-red:hover{opacity:.9}.btn-sm{padding:4px 10px;font-size:12px}.btn-xs{padding:2px 8px;font-size:11px}.btn-icon{padding:6px;border:none;background:transparent}.btn-icon:hover{background:var(--bg-hover)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:12px;font-weight:500;color:var(--text-secondary);margin-bottom:5px}.form-input,.form-select,.form-textarea{width:100%;padding:8px 12px;font-size:13px;font-family:var(--font);border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-input);color:var(--text-primary);transition:border-color var(--transition)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #64748b1a}.form-textarea{min-height:80px;resize:vertical}.form-row{display:grid;gap:16px}.form-row-2{grid-template-columns:1fr 1fr}.form-row-3{grid-template-columns:1fr 1fr 1fr}.form-row-4{grid-template-columns:1fr 1fr 1fr 1fr}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}thead th{padding:10px 14px;text-align:left;font-weight:500;color:var(--text-secondary);background:var(--bg);border-bottom:1px solid var(--border);font-size:12px;white-space:nowrap;cursor:pointer;-webkit-user-select:none;user-select:none}thead th:hover{color:var(--text-primary)}thead th.sorted{color:var(--text-primary);font-weight:600}tbody td{padding:10px 14px;border-bottom:1px solid var(--border);vertical-align:middle}tbody tr:hover{background:var(--bg-hover)}tbody tr.clickable{cursor:pointer}.badge{display:inline-flex;align-items:center;padding:2px 10px;font-size:11px;font-weight:500;border-radius:100px;white-space:nowrap}.badge-draft{background:var(--bg);color:var(--text-tertiary);border:1px solid var(--border)}.badge-pending{background:var(--orange-light);color:#b45309}.badge-awaiting{background:var(--purple-light);color:#6d28d9}.badge-closed{background:var(--bg);color:var(--text-tertiary)}.badge-allocated{background:var(--blue-light);color:#1d4ed8}.badge-completed{background:var(--green-light);color:#15803d}.badge-issued{background:var(--blue-light);color:#1d4ed8}.tag{display:inline-flex;align-items:center;padding:1px 6px;font-size:10px;font-weight:500;border-radius:4px;margin-left:6px}.tag-purchase{background:var(--orange-light);color:#b45309}.tag-production{background:var(--blue-light);color:#1d4ed8}.filter-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px 0}.filter-bar .form-input,.filter-bar .form-select{width:auto;min-width:140px;padding:6px 10px;font-size:12px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.modal{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:90%;max-width:600px;max-height:85vh;overflow-y:auto}.modal-lg{max-width:900px}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-header h3{font-size:15px;font-weight:600}.modal-body{padding:20px}.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.toast-container{position:fixed;top:16px;right:16px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:10px 16px;border-radius:var(--radius);font-size:13px;box-shadow:var(--shadow-md);animation:slideIn .2s ease;max-width:360px}.toast-success{background:var(--green);color:#fff}.toast-error{background:var(--red);color:#fff}.toast-info{background:var(--blue);color:#fff}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#fafbfc}.login-card{width:360px;padding:40px 32px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.login-card h1{font-size:20px;font-weight:600;text-align:center;margin-bottom:4px;color:var(--accent)}.login-card p{font-size:12px;color:var(--text-tertiary);text-align:center;margin-bottom:28px}.login-card .form-group{margin-bottom:18px}.login-card .btn{width:100%;justify-content:center;padding:10px}.empty{padding:40px;text-align:center;color:var(--text-tertiary);font-size:13px}.pagination{display:flex;align-items:center;justify-content:space-between;padding:12px 0;font-size:12px;color:var(--text-secondary)}.pagination-btns{display:flex;gap:4px}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0}.form-row-2,.form-row-3,.form-row-4{grid-template-columns:1fr}.page-body{padding:16px}}.num-demand{color:#1d4ed8;font-weight:600;font-variant-numeric:tabular-nums}.num-build{color:#6d28d9;font-weight:600;font-variant-numeric:tabular-nums}.num-sales{color:#15803d;font-weight:600;font-variant-numeric:tabular-nums}.tag-src-sales{background:var(--blue-light);color:#1d4ed8}.tag-src-inventory{background:var(--green-light);color:#15803d}.tag-src-sample{background:var(--purple-light);color:#6d28d9}tbody tr:nth-child(2n){background:#fafaf9}tbody tr.clickable:hover{background:var(--blue-light)}.col-picker{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);font-size:12px;color:var(--text-secondary);background:#fcfcfb}.col-picker-title{font-weight:600;color:var(--text-tertiary)}.col-picker-item{display:flex;align-items:center;gap:4px;cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap}.col-picker-item input{accent-color:var(--blue)}.op-group{display:inline-flex;flex-direction:column;align-items:center;gap:1px;vertical-align:top}.op-note{font-size:10px;line-height:1.2;white-space:nowrap;font-variant-numeric:tabular-nums}.op-note-ok{color:#15803d}.op-note-low{color:#b45309}.pager{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:10px 16px;border-top:1px solid var(--border)}.pager-info{font-size:12px;color:var(--text-secondary);font-variant-numeric:tabular-nums}.tag-type-outsourced{background:#fef3c7;color:#b45309}.tag-type-inhouse{background:#e0e7ff;color:#4338ca}.type-option{flex:1;padding:14px 0;font-size:14px;font-weight:600;border:2px solid var(--border);border-radius:8px;background:#fff;color:var(--text-secondary);cursor:pointer;transition:all .15s}.type-option:hover{border-color:var(--blue)}.type-option-active{border-color:var(--blue);background:var(--blue-light);color:#1d4ed8}.wh-selected{color:#1d4ed8;font-weight:600;background:var(--blue-light)}