/**
 * Enhanced Categories Page - Glassmorphism Design
 * 支持 light/dark 背景自适应
 */

/* 页面容器透明 */
.layout_category #content-inner,
.category-lists #content-inner {
    background: transparent !important;
}

/* 分类网格 */
.category-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    padding: 32px 0;
}

/* 卡片基础 */
.category-card {
    border-radius: 16px;
    padding: 28px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 200px;
    position: relative;
}

/* Light 背景 */
body.light-background .category-card {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

body.light-background .category-card:hover {
    background: rgba(255, 255, 255, 0.95) !important;
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

/* Dark 背景 */
body.dark-background .category-card {
    background: rgba(255, 255, 255, 0.12) !important;
    backdrop-filter: blur(25px) saturate(150%);
    -webkit-backdrop-filter: blur(25px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

body.dark-background .category-card:hover {
    background: rgba(255, 255, 255, 0.18) !important;
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}

/* 头部 */
.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--category-color, #667eea) 0%, transparent 100%);
    opacity: 0.6;
}

/* 图标 */
.card-icon {
    font-size: 36px;
    margin-right: 16px;
    transition: all 0.3s ease;
}

.category-card:hover .card-icon {
    transform: scale(1.15) rotate(-5deg);
}

/* 标题 */
.card-title {
    font-size: 22px;
    font-weight: 700;
    text-decoration: none;
    flex-grow: 1;
    transition: all 0.3s ease;
}

body.light-background .card-title {
    color: #2a2a2a !important;
}

body.light-background .card-title:hover {
    color: var(--category-color, #667eea) !important;
}

body.dark-background .card-title {
    color: #ffffff !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

body.dark-background .card-title:hover {
    color: var(--category-color, #667eea) !important;
}

/* 数量标签 */
.card-count {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

body.light-background .card-count {
    background: rgba(102, 126, 234, 0.12);
    color: #667eea;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

body.dark-background .card-count {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

/* 子分类 */
.subcategory-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
    margin-top: auto;
}

.subcategory-link {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
}

body.light-background .subcategory-link {
    background: rgba(0, 0, 0, 0.05);
    color: #555;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

body.light-background .subcategory-link:hover {
    background: #ffffff;
    color: var(--category-color, #667eea);
    border-color: var(--category-color, #667eea);
    transform: translateY(-2px);
}

body.dark-background .subcategory-link {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

body.dark-background .subcategory-link:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    transform: translateY(-2px);
}

/* 左侧色条 */
.category-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: linear-gradient(180deg, var(--category-color, #667eea) 0%, transparent 100%);
}

/* 响应式 */
@media screen and (max-width: 768px) {
    .category-container {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 20px 0;
    }

    .category-card {
        padding: 20px;
        min-height: 160px;
    }

    .card-icon {
        font-size: 28px;
    }

    .card-title {
        font-size: 18px;
    }
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-card {
    animation: fadeInUp 0.6s ease-out;
}

.category-card:nth-child(1) {
    animation-delay: 0.1s;
}

.category-card:nth-child(2) {
    animation-delay: 0.2s;
}

.category-card:nth-child(3) {
    animation-delay: 0.3s;
}

.category-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* 空分类提示 */
.empty-category-notice {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    margin-top: auto;
    opacity: 0.6;
}

.empty-category-notice i {
    font-size: 32px;
}

body.light-background .empty-category-notice {
    color: #666;
}

body.dark-background .empty-category-notice {
    color: rgba(255, 255, 255, 0.7);
}

.empty-category-notice span {
    font-size: 13px;
}