/* 自定义样式 */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* 轮播图样式 */
.carousel-item {
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.7) !important;
    border-radius: 10px;
    padding: 2rem !important;
}

/* 产品卡片样式 */
.product-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-card .card-img-top {
    transition: transform 0.3s ease;
}

.product-card:hover .card-img-top {
    transform: scale(1.05);
}

/* 分类卡片样式 */
.category-card {
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.category-card i {
    transition: transform 0.3s ease;
}

.category-card:hover i {
    transform: scale(1.1);
}

/* 按钮样式 */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(45deg, #007bff, #0056b3);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0056b3, #004085);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(45deg, #28a745, #1e7e34);
    border: none;
}

.btn-success:hover {
    background: linear-gradient(45deg, #1e7e34, #155724);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(45deg, #dc3545, #c82333);
    border: none;
}

.btn-danger:hover {
    background: linear-gradient(45deg, #c82333, #bd2130);
    transform: translateY(-1px);
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px 10px 0 0 !important;
}

/* 表单样式 */
.form-control {
    border-radius: 6px;
    border: 1px solid #ddd;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 徽章样式 */
.badge {
    border-radius: 6px;
    font-weight: 500;
}

/* 页脚样式 */
footer {
    margin-top: auto;
}

footer a:hover {
    color: var(--primary-color) !important;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .carousel-item {
        height: 250px;
    }
    
    .carousel-caption {
        padding: 1rem !important;
    }
    
    .carousel-caption h2 {
        font-size: 1.5rem;
    }
    
    .product-card .card-img-top {
        height: 150px !important;
    }
    
    .category-card i {
        font-size: 2rem !important;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .carousel-item {
        height: 200px;
    }
    
    .carousel-caption h2 {
        font-size: 1.2rem;
    }
    
    .carousel-caption p {
        font-size: 0.9rem;
    }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* 工具提示样式 */
.tooltip {
    font-size: 0.875rem;
}

/* 模态框样式 */
.modal-content {
    border-radius: 10px;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 10px 10px 0 0;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0 0 10px 10px;
}

/* 分页样式 */
.pagination .page-link {
    border-radius: 6px;
    margin: 0 2px;
    border: 1px solid #ddd;
    color: var(--primary-color);
}

.pagination .page-item.active .page-link {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    background-color: rgba(0, 123, 255, 0.1);
    border-color: var(--primary-color);
}

/* 搜索框样式 */
.search-box {
    position: relative;
}

.search-box .form-control {
    padding-right: 40px;
}

.search-box .btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: var(--primary-color);
}

/* 购物车徽章动画 */
.badge {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* 价格样式 */
.price {
    font-weight: bold;
    color: var(--primary-color);
}

.price-original {
    text-decoration: line-through;
    color: var(--secondary-color);
    font-size: 0.9em;
}

/* 库存状态 */
.stock-status {
    font-size: 0.875rem;
}

.stock-in {
    color: var(--success-color);
}

.stock-out {
    color: var(--danger-color);
}

/* 订单状态样式 */
.status-pending { color: var(--warning-color); }
.status-paid { color: var(--info-color); }
.status-shipped { color: var(--primary-color); }
.status-delivered { color: var(--success-color); }
.status-cancelled { color: var(--danger-color); }