* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei","PingFang SC",Arial,sans-serif; background: #f0f2f5; color: #333; font-size: 14px; }
a { color: #1890ff; text-decoration: none; }
a:hover { color: #40a9ff; }

/* 扫码领用页 */
.scan-container { max-width: 520px; margin: 40px auto; background: #fff; border-radius: 12px; box-shadow: 0 2px 12px rgba(0,0,0,.08); overflow: hidden; }
.scan-header { background: linear-gradient(135deg,#1890ff,#096dd9); color: #fff; padding: 24px; text-align: center; }
.scan-header h1 { font-size: 22px; margin-bottom: 6px; }
.scan-header p { font-size: 13px; opacity: .85; }
.scan-form { padding: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; color: #555; }
.form-group label .required { color: #ff4d4f; }
.form-control { width: 100%; padding: 10px 12px; border: 1px solid #d9d9d9; border-radius: 6px; font-size: 14px; transition: border-color .3s; }
.form-control:focus { outline: none; border-color: #1890ff; box-shadow: 0 0 0 2px rgba(24,144,255,.2); }
.stock-info { margin-top: 6px; padding: 8px 12px; background: #e6f7ff; border-radius: 4px; font-size: 13px; color: #0050b3; }
.stock-info.low { background: #fff2e8; color: #d4380d; }
.stock-info.empty { background: #fff1f0; color: #cf1322; }

/* 领用单位单选框 */
.unit-radio-group { display: flex; flex-direction: column; gap: 8px; }
.unit-radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border: 2px solid #d9d9d9;
    border-radius: 8px;
    cursor: pointer;
    transition: all .2s;
    font-size: 14px;
    background: #fff;
}
.unit-radio-label:hover { border-color: #1890ff; background: #f0f7ff; }
.unit-radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: #1890ff;
    cursor: pointer;
    flex-shrink: 0;
}
.unit-radio-label input[type="radio"]:checked + span {
    color: #1890ff;
    font-weight: 600;
}
.unit-radio-label:has(input[type="radio"]:checked) {
    border-color: #1890ff;
    background: #e6f7ff;
}
.btn-submit { width: 100%; padding: 12px; background: #1890ff; color: #fff; border: none; border-radius: 6px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background .3s; }
.btn-submit:hover { background: #40a9ff; }
.btn-submit:disabled { background: #d9d9d9; cursor: not-allowed; }

/* 提示 */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; }
.alert-error { background: #fff2f0; border: 1px solid #ffccc7; color: #cf1322; }

/* 登录页 */
.login-container { max-width: 380px; margin: 100px auto; background: #fff; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,.1); padding: 40px 32px; }
.login-container h2 { text-align: center; margin-bottom: 24px; color: #1890ff; }

/* 后台布局 */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 200px; background: #001529; color: #fff; flex-shrink: 0; }
.admin-sidebar .logo { padding: 20px; font-size: 16px; font-weight: 700; text-align: center; border-bottom: 1px solid #1f3a5f; }
.admin-sidebar nav a { display: block; padding: 14px 24px; color: #c9d6e4; font-size: 14px; transition: all .2s; }
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: #1890ff; color: #fff; }
.admin-main { flex: 1; padding: 24px; overflow-x: auto; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.admin-header h2 { font-size: 20px; }
.admin-header .user-info { font-size: 13px; color: #666; }
.admin-header .user-info a { margin-left: 12px; }

/* 卡片 */
.card { background: #fff; border-radius: 8px; padding: 20px; margin-bottom: 20px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.card h3 { margin-bottom: 16px; font-size: 16px; }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #f0f0f0; }
.data-table th { background: #fafafa; font-weight: 600; color: #555; white-space: nowrap; }
.data-table tr:hover { background: #f5faff; }
.data-table .stock-low { color: #fa8c16; font-weight: 600; }
.data-table .stock-empty { color: #ff4d4f; font-weight: 600; }
.type-in { color: #389e0d; font-weight: 600; }
.type-out { color: #cf1322; font-weight: 600; }

/* 按钮 */
.btn { display: inline-block; padding: 6px 16px; border: 1px solid #d9d9d9; border-radius: 4px; background: #fff; color: #333; font-size: 13px; cursor: pointer; transition: all .2s; text-decoration: none; }
.btn:hover { border-color: #1890ff; color: #1890ff; }
.btn-primary { background: #1890ff; color: #fff; border-color: #1890ff; }
.btn-primary:hover { background: #40a9ff; color: #fff; }
.btn-danger { background: #ff4d4f; color: #fff; border-color: #ff4d4f; }
.btn-danger:hover { background: #ff7875; color: #fff; }
.btn-success { background: #52c41a; color: #fff; border-color: #52c41a; }
.btn-success:hover { background: #73d13d; color: #fff; }
.btn-warning { background: #faad14; color: #fff; border-color: #faad14; }
.btn-warning:hover { background: #ffc53d; color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* 筛选栏 */
.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; margin-bottom: 16px; }
.filter-bar .form-group { margin-bottom: 0; }
.filter-bar .form-control { width: auto; min-width: 140px; }

/* 统计卡片 */
.stat-cards { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.stat-card { flex: 1; min-width: 160px; background: #fff; border-radius: 8px; padding: 20px; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.stat-card .label { font-size: 13px; color: #888; margin-bottom: 8px; }
.stat-card .value { font-size: 28px; font-weight: 700; color: #1890ff; }

/* 模态框 */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,.45); z-index: 1000; justify-content: center; align-items: center; }
.modal-overlay.show { display: flex; }
.modal { background: #fff; border-radius: 8px; padding: 24px; width: 440px; max-width: 90%; }
.modal h3 { margin-bottom: 16px; }
.modal-actions { text-align: right; margin-top: 20px; }
.modal-actions .btn { margin-left: 8px; }

/* 复选框列 */
.col-check { width: 40px; text-align: center; }
.col-check input { width: 16px; height: 16px; cursor: pointer; }

/* 打印操作栏 */
.print-toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.print-toolbar .selected-count { font-size: 13px; color: #666; margin-left: 8px; }