/* 基础样式重置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
a {
    text-decoration: none;
}
/* 主容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

/* 页脚样式 */
.footer {
    margin-top: 3rem;
    padding: 2rem 0;
    border-top: 1px solid #dee2e6;
    background-color: #f8f9fa;
}

/* 按钮样式 */
.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
    padding: 0.375rem 1rem;
    font-size: 0.875rem;
    line-height: 1.5;
}

    .btn-primary:hover {
        background-color: #0056b3;
        border-color: #0056b3;
    }

/* 卡片样式 */
.card {
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,.075);
    transition: box-shadow 0.3s ease;
}

    .card:hover {
        box-shadow: 0 0.5rem 1rem rgba(0,0,0,.15);
    }

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 0.75rem 1rem;
}

/* 表单样式 */
.form-control {
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

    .form-control:focus {
        border-color: #86b7fe;
        box-shadow: 0 0 0 0.25rem rgba(13,110,253,.25);
    }

/* 表格样式 */
.table {
    width: 100%;
    margin-bottom: 1rem;
    background-color: transparent;
    border-collapse: collapse;
}

    .table th,
    .table td {
        padding: 0.75rem;
        vertical-align: top;
        border-top: 1px solid #dee2e6;
    }

    .table thead th {
        vertical-align: bottom;
        border-bottom: 2px solid #dee2e6;
    }

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }

    .navbar-brand {
        font-size: 1.2rem;
    }

    .card {
        margin-bottom: 1rem;
    }
}

/* 轮播图样式 */
.carousel-item {
    transition: transform 0.6s ease;
}

.carousel-caption {
    background: rgba(0,0,0,0.5);
    border-radius: 0.25rem;
    padding: 1rem;
}

/* 分页样式 */
.pagination {
    display: flex;
    padding-left: 0;
    list-style: none;
    border-radius: 0.25rem;
}

.page-link {
    position: relative;
    display: block;
    padding: 0.5rem 0.75rem;
    margin-left: -1px;
    line-height: 1.25;
    color: #007bff;
    background-color: #fff;
    border: 1px solid #dee2e6;
}

.page-item.active .page-link {
    z-index: 3;
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

/* 商品详情页样式 */
.product-gallery {
    margin-bottom: 2rem;
}

.product-info {
    margin-bottom: 2rem;
}

.product-price {
    font-size: 1.5rem;
    color: #dc3545;
    font-weight: bold;
}

/* 后台管理样式 */
.admin-layout {
    min-height: calc(100vh - 56px - 150px);
}

.admin-sidebar {
    background-color: #343a40;
    min-height: 100vh;
    padding: 20px 0;
}

    .admin-sidebar .nav-link {
        color: rgba(255,255,255,.5);
        padding: 10px 20px;
    }

        .admin-sidebar .nav-link:hover,
        .admin-sidebar .nav-link.active {
            color: #fff;
            background-color: #495057;
        }

.admin-content {
    padding: 20px;
}

/* 消息提示样式 */
.alert {
    border: 1px solid transparent;
    border-radius: 0.25rem;
    margin-bottom: 1rem;
    padding: 0.75rem 1.25rem;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}