* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 登录页面样式 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 400px;
}

.login-box h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #667eea;
    color: white;
}

.btn-primary:hover {
    background-color: #5568d3;
}

.btn-success {
    background-color: #28a745;
    color: white;
}

.btn-success:hover {
    background-color: #218838;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-warning {
    background-color: #ffc107;
    color: #333;
}

.btn-warning:hover {
    background-color: #e0a800;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
}

/* 导航栏样式 */
.navbar {
    background-color: #333;
    padding: 15px 0;
    margin-bottom: 30px;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar h1 {
    color: white;
    font-size: 20px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: #667eea;
}

/* 用户名显示样式 */
.user-info {
    color: #ffffff !important;
    padding: 8px 16px;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.1);
    font-weight: 500;
}

/* 表格样式 */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 20px;
}

.table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.table th,
.table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
    white-space: nowrap;
}

.table th {
    background-color: #667eea;
    color: white;
    font-weight: 600;
}

.table tr:hover {
    background-color: #f5f5f5;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 18px;
    color: #333;
}

/* 订单表单样式 */
.order-form {
    max-width: 800px;
    margin: 0 auto;
}

.order-title {
    text-align: center;
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #333;
}

.order-section {
    margin-bottom: 20px;
}

.order-divider {
    border-top: 2px solid #333;
    margin: 20px 0;
}

.order-dashed-divider {
    border-top: 2px dashed #999;
    margin: 20px 0;
}

.product-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

.product-row input[name*="[unit_price]"],
.product-row input[name*="[quantity]"] {
    text-align: center;
}

.product-row input {
    padding: 8px 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.product-row input[name*="[unit_price]"],
.product-row input[name*="[quantity]"],
.product-row input[name*="[cost_price]"] {
    text-align: center;
}

.product-row .subtotal {
    text-align: right;
    font-weight: 500;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-weight: bold;
    font-size: 16px;
}

.btn-add-row {
    background-color: #17a2b8;
    color: white;
    padding: 8px 16px;
    margin-top: 10px;
}

.btn-add-row:hover {
    background-color: #138496;
}

.btn-remove {
    background-color: #dc3545;
    color: white;
    padding: 5px 8px;
    width: auto;
    min-width: auto;
    justify-self: center;
    font-size: 12px;
    line-height: 1;
}

.btn-remove:hover {
    background-color: #c82333;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-row {
        grid-template-columns: 1fr;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    .login-box {
        width: 90%;
        padding: 20px;
    }
}

/* 下拉菜单样式 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 5px;
    transition: background-color 0.3s;
    cursor: pointer;
    display: inline-block;
}

.dropdown-toggle:hover,
.dropdown-toggle.active {
    background-color: #667eea;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 160px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-radius: 5px;
    z-index: 1000;
    margin-top: 0;
    overflow: hidden;
    padding-top: 5px;
}

/* 使用伪元素创建透明桥接区域，防止鼠标移动时菜单消失 */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 0;
    right: 0;
    height: 5px;
    background: transparent;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    color: #333;
    padding: 10px 16px;
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
}

.dropdown-menu a:hover {
    background-color: #f5f5f5;
}

.dropdown-menu a.active {
    background-color: #667eea;
    color: white;
}