*{box-sizing:border-box}body{margin:0;font-family:'Microsoft JhengHei',Arial,sans-serif;background:#f4f6fb;color:#1f2937}.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#b91c1c,#ef4444 45%,#fff 45%,#f4f6fb)}.login-card{width:92%;max-width:420px;background:#fff;border-radius:24px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.18)}.brand{display:flex;gap:14px;align-items:center;margin-bottom:20px}.logo{width:52px;height:52px;background:#dc2626;color:#fff;border-radius:16px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:24px}.brand h1{font-size:24px;margin:0}.brand p{margin:4px 0 0;color:#6b7280}.form-group{margin:14px 0}.form-group label{display:block;margin-bottom:7px;font-weight:700}.form-control,select,textarea,input[type=date],input[type=number]{width:100%;padding:12px 13px;border:1px solid #d1d5db;border-radius:12px;font-size:15px;background:#fff}.form-control:focus,select:focus,textarea:focus,input:focus{outline:2px solid rgba(220,38,38,.18);border-color:#dc2626}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:12px;padding:10px 15px;background:#dc2626;color:#fff;text-decoration:none;font-weight:800;cursor:pointer;font-size:14px}.btn:hover{background:#b91c1c}.btn.gray{background:#4b5563}.btn.green{background:#16a34a}.btn.blue{background:#2563eb}.btn.danger{background:#991b1b}.btn.light{background:#fff;color:#dc2626;border:1px solid #fecaca}.btn.small{padding:7px 10px;border-radius:10px;font-size:13px}.alert{padding:12px 14px;border-radius:12px;margin:12px 0}.alert.ok{background:#dcfce7;color:#166534}.alert.err{background:#fee2e2;color:#991b1b}.topbar{background:#991b1b;color:#fff;padding:14px 22px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}.topbar a{color:#fff;text-decoration:none}.layout{display:flex}.sidebar{width:245px;background:#fff;min-height:calc(100vh - 56px);border-right:1px solid #e5e7eb;padding:18px;position:sticky;top:56px}.sidebar a{display:block;text-decoration:none;color:#374151;padding:11px 12px;border-radius:12px;margin-bottom:6px;font-weight:700}.sidebar a:hover,.sidebar a.active{background:#fee2e2;color:#991b1b}.main{flex:1;padding:24px;min-width:0}.page-title{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.page-title h1{margin:0;font-size:26px}.page-title p{margin:5px 0 0;color:#6b7280}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:18px}.card{background:#fff;border-radius:18px;padding:18px;box-shadow:0 8px 20px rgba(15,23,42,.06);border:1px solid #e5e7eb}.card h3{margin:0 0 8px;font-size:14px;color:#6b7280}.card .num{font-size:30px;font-weight:900}.toolbar{background:#fff;border-radius:18px;padding:14px;display:flex;gap:10px;align-items:center;margin-bottom:16px;box-shadow:0 8px 20px rgba(15,23,42,.05);flex-wrap:wrap}.toolbar .grow{flex:1;min-width:200px}.table-wrap{background:#fff;border-radius:18px;overflow:auto;border:1px solid #e5e7eb;box-shadow:0 8px 20px rgba(15,23,42,.05)}table{width:100%;border-collapse:collapse;min-width:850px}th,td{padding:12px 14px;border-bottom:1px solid #e5e7eb;text-align:left;vertical-align:middle}th{background:#f9fafb;color:#4b5563;font-size:13px}.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-weight:800;font-size:12px}.badge.red{background:#fee2e2;color:#991b1b}.badge.green{background:#dcfce7;color:#166534}.badge.blue{background:#dbeafe;color:#1e40af}.badge.gray{background:#f3f4f6;color:#374151}.low{color:#dc2626;font-weight:900}.okqty{color:#166534;font-weight:900}.form-card{background:#fff;border-radius:20px;padding:20px;box-shadow:0 8px 20px rgba(15,23,42,.06);max-width:900px}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.actions{display:flex;gap:8px;flex-wrap:wrap}.muted{color:#6b7280}.danger-link{color:#dc2626;text-decoration:none;font-weight:800}@media(max-width:850px){.layout{display:block}.sidebar{position:static;width:auto;min-height:auto;display:flex;overflow:auto;gap:6px;padding:10px}.sidebar a{white-space:nowrap}.main{padding:14px}.cards{grid-template-columns:repeat(2,1fr)}.page-title{display:block}.grid2{grid-template-columns:1fr}.topbar{padding:12px 14px}.hide-mobile{display:none}}@media(max-width:520px){.cards{grid-template-columns:1fr}.toolbar{display:block}.toolbar>*{margin-bottom:8px}.btn{width:100%;margin-top:4px}.actions .btn{width:auto}.login-card{padding:24px}}