/* 现代简约配色 - 参考旅行网站深灰风格 */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-gray: #e9ecef;
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    
    /* 主色调 - 深灰系列 */
    --btn-inactive-bg: #c5c9cc;
    --btn-inactive-text: #ffffff;
    --btn-active-bg: #1a2a3a;
    --btn-active-text: #ffffff;
    --btn-hover-bg: #2a3a4a;
    
    --accent-red: #e74c3c;
    --accent-orange: #ff6b35;
    
    --border-light: #e0e0e0;
    --border-medium: #d0d0d0;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* 页面右上角登录/退出按钮 - 固定在右上角 */
.top-right-controls {
    position: fixed;
    top: 20px;
    right: 40px;
    z-index: 1001;
}

.top-right-controls .btn {
    padding: 12px 40px;
    border: none;
    border-radius: 30px;
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    min-width: 110px;
}

.top-right-controls .btn:hover {
    background-color: var(--btn-hover-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 右侧功能按钮栏 - 固定垂直排列 */
.top-function-bar {
    position: fixed;
    top: 90px;
    right: 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
    width: auto;
}

.function-bubble {
    padding: 12px 28px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    background-color: var(--btn-inactive-bg);
    border: none;
    color: var(--btn-inactive-text);
    white-space: nowrap;
    min-width: 110px;
    text-align: center;
}

.function-bubble:hover {
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
    background-color: var(--btn-hover-bg);
}

/* 固定Banner区域 - 圆角矩形+阴影 */
.fixed-banner {
    position: fixed;
    top: 20px;
    left: 12.5%;
    right: 12.5%;
    width: 75%;
    background-color: var(--bg-primary);
    z-index: 100;
    padding: 20px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    max-height: 200px;
    overflow: visible;
}

/* 顶部标题栏 */
.header {
    text-align: center;
    margin-bottom: 15px;
    padding: 5px;
}

.header h1 {
    font-size: 28px;
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -1px;
}

/* 分类筛选栏 */
.category-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 24px;
    background-color: var(--btn-inactive-bg);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    color: var(--btn-inactive-text);
}

.category-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background-color: var(--btn-hover-bg);
}

.category-btn.active {
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

/* 【归档】按钮 - 使用更深的灰色 */
.category-btn[data-category="archive"] {
    background-color: #8a9095;
}

.category-btn[data-category="archive"]:hover,
.category-btn[data-category="archive"].active {
    background-color: var(--btn-active-bg);
}

/* 普通分类按钮 - 统一使用深灰/浅灰配色 */
.category-btn:not([data-category="all"]):not([data-category="archive"]) {
    background-color: var(--btn-inactive-bg);
    color: var(--btn-inactive-text);
}

.category-btn:not([data-category="all"]):not([data-category="archive"]):hover {
    background-color: var(--btn-hover-bg);
}

.category-btn:not([data-category="all"]):not([data-category="archive"]).active {
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

/* 批量管理工具栏 */
.batch-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 0;
    padding: 10px 15px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    justify-content: center;
    border: 1px solid var(--border-light);
}

.batch-controls .btn {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.batch-controls .btn:hover:not(:disabled) {
    background-color: var(--btn-hover-bg);
    transform: translateY(-2px);
}

.batch-controls .btn:disabled {
    background-color: var(--border-light);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* 主内容区域布局 */
.main-layout {
    position: fixed;
    top: 240px;
    left: 12.5%;
    right: 12.5%;
    width: 75%;
    bottom: 20px;
    overflow-y: auto;
    padding-right: 0;
}

/* 自定义滚动条 */
.main-layout::-webkit-scrollbar {
    width: 6px;
}

.main-layout::-webkit-scrollbar-track {
    background: var(--bg-gray);
    border-radius: 3px;
}

.main-layout::-webkit-scrollbar-thumb {
    background: var(--btn-inactive-bg);
    border-radius: 3px;
}

.main-layout::-webkit-scrollbar-thumb:hover {
    background: var(--btn-hover-bg);
}

/* 商品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding-bottom: 20px;
}

/* 商品卡片 */
.product-card {
    background-color: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.product-card.selected {
    border: 2px solid var(--btn-active-bg);
    box-shadow: 0 0 0 4px rgba(26, 42, 58, 0.15);
}

/* 图片容器 - 1:1比例 */
.product-image-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
    overflow: hidden;
    background-color: var(--bg-gray);
    cursor: pointer;
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.4s ease;
}

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

/* 图片右上角操作按钮 - 悬停显示 */
.product-actions-overlay {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.product-card:hover .product-actions-overlay {
    opacity: 1;
}

.product-actions-overlay .action-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 16px;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.product-actions-overlay .action-btn:hover {
    background-color: var(--btn-active-bg);
    color: white;
    transform: translateY(-1px) scale(1.05);
}

/* 批量模式复选框 */
.product-card .batch-checkbox {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    z-index: 10;
}

/* 收藏按钮 - 图片右下角心形 */
.favorite-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    background-color: white;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 20;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    color: #333;
}

.favorite-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.favorite-btn.favorited {
    background-color: white;
    border: none;
    color: #e74c3c;
    box-shadow: 0 2px 6px rgba(231, 76, 60, 0.1);
}

.favorite-btn.favorited:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.2);
}

/* 商品信息 */
.product-info {
    padding: 15px;
}

.product-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.product-price-sales {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    color: var(--btn-active-bg);
    font-weight: 800;
    font-size: 16px;
}

.product-sales {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 16px;
    grid-column: 1 / -1;
}

/* 管理中心侧边栏 */
.admin-sidebar {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    height: 100%;
    background-color: var(--bg-primary);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
    z-index: 1002;
    transition: right 0.3s ease;
    overflow-y: auto;
}

.admin-sidebar.open {
    right: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-light);
    background-color: var(--bg-secondary);
}

.sidebar-header h2 {
    font-size: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.close-sidebar {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.close-sidebar:hover {
    color: var(--text-primary);
}

.sidebar-content {
    padding: 24px;
}

.sidebar-section {
    margin-bottom: 32px;
}

.sidebar-section h3 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 700;
}

.sidebar-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-bottom: 12px;
}

.sidebar-btn:hover {
    background-color: var(--btn-hover-bg);
    transform: translateY(-2px);
}

.sidebar-btn.danger {
    background-color: #5a6a7a;
}

.sidebar-btn.danger:hover {
    background-color: #4a5a6a;
}

/* 分类列表 */
.category-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.category-item span {
    font-weight: 600;
    color: var(--text-primary);
}

.category-item-actions {
    display: flex;
    gap: 8px;
}

.category-item button {
    padding: 8px 14px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.category-item .edit-btn {
    background-color: var(--btn-active-bg);
    color: white;
}

.category-item .delete-btn {
    background-color: #5a6a7a;
    color: white;
}

.category-item button:hover {
    transform: scale(1.05);
}

/* 侧边栏遮罩 */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: 20px;
    padding: 32px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-content .close {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.modal-content .close:hover {
    color: var(--text-primary);
}

.modal-body h2 {
    margin-bottom: 24px;
    color: var(--text-primary);
    font-size: 22px;
    font-weight: 700;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    font-size: 14px;
    transition: all 0.3s ease;
    background-color: var(--bg-secondary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--btn-active-bg);
    box-shadow: 0 0 0 3px rgba(26, 42, 58, 0.1);
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

.form-actions .btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.form-actions .btn:first-child {
    background-color: var(--bg-gray);
    color: var(--text-secondary);
}

.form-actions .btn:first-child:hover {
    background-color: var(--border-light);
}

.form-actions .btn:last-child {
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

.form-actions .btn:last-child:hover {
    background-color: var(--btn-hover-bg);
    transform: translateY(-2px);
}

/* 分类选择列表样式 */
.category-select-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
    padding: 4px;
}

.category-select-item {
    padding: 14px 18px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.25s ease;
    border: 2px solid transparent;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.category-select-item:hover {
    background-color: var(--bg-gray);
    transform: translateX(4px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

.category-select-item.selected {
    background-color: var(--btn-active-bg);
    color: white;
    border-color: var(--btn-active-bg);
    box-shadow: 0 4px 12px rgba(26, 42, 58, 0.25);
}

.category-select-item.selected:hover {
    background-color: var(--btn-hover-bg);
    border-color: var(--btn-hover-bg);
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 基础布局 */
    html, body {
        height: auto;
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    body {
        padding-bottom: 20px;
        min-height: 100vh;
    }
    
    /* 顶部区域改为相对定位 */
    .fixed-banner {
        position: relative;
        left: 0;
        right: 0;
        top: 0;
        width: 100%;
        padding: 15px;
        margin-bottom: 15px;
        border-radius: 0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    
    /* 主内容区域改为相对定位 */
    .main-layout {
        position: relative;
        left: 0;
        right: 0;
        top: 0;
        width: 100%;
        padding: 0 15px 20px;
        height: auto;
        overflow-y: visible;
        min-height: calc(100vh - 200px);
    }
    
    /* 隐藏右侧功能栏 */
    .top-function-bar {
        display: none !important;
    }
    
    /* 隐藏右上角登录按钮 */
    .top-right-controls {
        display: none !important;
    }
    
    /* 分类导航横向滚动 */
    .category-nav {
        display: flex;
        overflow-x: auto;
        gap: 8px;
        padding: 10px 0;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }
    
    .category-nav::-webkit-scrollbar {
        display: none;
    }
    
    .category-btn {
        flex-shrink: 0;
        padding: 8px 16px;
        font-size: 13px;
        border-radius: 20px;
    }
    
    .header h1 {
        font-size: 20px;
    }
    
    /* 商品网格 - 2列 */
    .product-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px;
        width: 100%;
    }
    
    /* 商品卡片调整 */
    .product-card {
        border-radius: 12px;
        min-width: 0; /* 防止内容溢出 */
    }
    
    /* 图片容器调整 */
    .product-image-wrapper {
        padding-bottom: 100%; /* 保持1:1比例 */
    }
    
    .product-image {
        width: 100%;
        height: 100%;
    }
    
    .product-info {
        padding: 10px;
    }
    
    .product-info h3 {
        font-size: 12px;
    }
    
    .admin-sidebar {
        width: 100%;
        right: -100%;
    }
}