/**
 * Downloads Page Styles
 * 网课网 - 在线教育平台 - 资源下载页面样式
 * 优化版本 - 减少对 !important 的依赖
 */

/* ===== 全局变量定义 ===== */
:root {
    /* 引用统一的wangkewang变量系统 */
    --downloads-primary: var(--wangkewang-primary);
    --downloads-primary-dark: var(--wangkewang-primary-dark);
    --downloads-success: var(--wangkewang-success);
    --downloads-success-dark: var(--wangkewang-success-dark);
    --downloads-warning: var(--wangkewang-warning);
    --downloads-warning-dark: var(--wangkewang-warning-dark);
    --downloads-danger: var(--wangkewang-danger);
    --downloads-danger-dark: var(--wangkewang-danger-dark);
    --downloads-dark: var(--wangkewang-primary);
    --downloads-light: var(--wangkewang-light);
    --downloads-gray: var(--wangkewang-gray);
    --downloads-gray-light: var(--wangkewang-gray-light);
    --downloads-gray-bg: var(--wangkewang-background);
    --downloads-white: var(--wangkewang-white);
    --downloads-shadow: var(--wangkewang-shadow-md);
    --downloads-shadow-hover: var(--wangkewang-shadow-lg);
}

/* ===== 基础布局 ===== */
body.downloads-page .container,
.downloads-page .container,
.main-content .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 分类导航样式 ===== */
/* 使用更高优先级的选择器避免使用 !important */
body.downloads-page .category-navigation-wrapper,
.downloads-page .category-navigation-wrapper,
.category-navigation-wrapper.downloads-page {
    margin-bottom: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 1px solid #e9ecef;
    display: block;
    visibility: visible;
}

/* ===== 修复头部导航冲突 ===== */
/* 确保头部导航不受页面样式影响 */
.navbar .nav-tab,
.top-nav .nav-tab,
body:not(.downloads-page) .nav-tab {
    /* 重置为默认样式 */
    display: inline-block;
    padding: 0.8rem 2rem !important;
    background: none;
    border: none;
    color: var(--wangkewang-light);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
}

.navbar .nav-tab:hover,
.top-nav .nav-tab:hover,
body:not(.downloads-page) .nav-tab:hover {
    color: var(--wangkewang-dark);
    background: var(--wangkewang-gray-bg);
    transform: translateY(-2px);
}

.navbar .nav-tab.active,
.top-nav .nav-tab.active,
body:not(.downloads-page) .nav-tab.active {
    color: var(--wangkewang-dark);
    background: var(--wangkewang-gray-bg);
    font-weight: 600;
}

/* ===== 下拉列表式分类导航样式 ===== */
.dropdown-category-nav {
    background: var(--wangkewang-white);
    border: 1px solid var(--wangkewang-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.06);
    display: flex;
    align-items: flex-start;
    gap: 30px;
}

/* 左侧分类选择器 */
.category-selector {
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.selector-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--wangkewang-primary);
    font-size: 14px;
}

.selector-label i {
    font-size: 16px;
}

.category-select {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid var(--wangkewang-border);
    border-radius: 8px;
    background: var(--wangkewang-white);
    color: var(--wangkewang-primary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-select:hover {
    border-color: var(--wangkewang-primary);
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.1);
}

.category-select:focus {
    outline: none;
    border-color: var(--wangkewang-primary);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}

/* 右侧二级分类显示区域 */
.secondary-category-display {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.secondary-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--wangkewang-secondary);
    font-size: 14px;
}

.secondary-label i {
    font-size: 16px;
}

.secondary-options {
    flex: 1;
}

.secondary-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

/* 二级分类选项 */
.secondary-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    color: var(--wangkewang-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    background: var(--wangkewang-background);
    border: 1px solid var(--wangkewang-border);
    border-radius: 20px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.secondary-option:hover {
    background: var(--wangkewang-primary);
    color: white;
    border-color: var(--wangkewang-primary);
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(44, 62, 80, 0.2);
}

.secondary-option.active {
    background: var(--wangkewang-vip);
    color: white;
    border-color: var(--wangkewang-vip);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(243, 156, 18, 0.3);
}

.secondary-option i {
    font-size: 11px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.secondary-option:hover i,
.secondary-option.active i {
    opacity: 1;
    color: white;
}

.secondary-badge {
    background: rgba(44, 62, 80, 0.1);
    color: inherit;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.secondary-option:hover .secondary-badge,
.secondary-option.active .secondary-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* 无二级分类提示 */
.no-secondary-options {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    color: var(--wangkewang-muted);
    font-size: 13px;
    opacity: 0.7;
    background: var(--wangkewang-background);
    border-radius: 8px;
    border: 1px dashed var(--wangkewang-border);
}

.no-secondary-options i {
    font-size: 16px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .dropdown-category-nav {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }

    .category-selector {
        flex: 1;
        width: 100%;
    }

    .secondary-category-display {
        width: 100%;
    }

    .secondary-list {
        gap: 6px;
    }

    .secondary-option {
        padding: 6px 12px;
        font-size: 12px;
    }

    .secondary-option i {
        font-size: 10px;
    }

    .secondary-badge {
        font-size: 10px;
        padding: 1px 4px;
        min-width: 16px;
    }

    .no-secondary-options {
        padding: 16px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .dropdown-category-nav {
        padding: 12px;
        gap: 12px;
    }

    .category-select {
        padding: 8px 12px;
        font-size: 13px;
    }

    .secondary-list {
        gap: 4px;
    }

    .secondary-option {
        padding: 5px 10px;
        font-size: 11px;
        gap: 4px;
    }

    .secondary-option i {
        font-size: 9px;
    }

    .secondary-badge {
        font-size: 9px;
        padding: 1px 3px;
        min-width: 14px;
    }

    .no-secondary-options {
        padding: 14px;
        font-size: 11px;
    }

    .no-secondary-options i {
        font-size: 14px;
    }
}

/* ===== 加载动画 ===== */
.category-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.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; }
.category-card:nth-child(5) { animation-delay: 0.5s; }
.category-card:nth-child(6) { animation-delay: 0.6s; }

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

/* ===== 打印样式 ===== */
@media print {
    .category-navigation-wrapper {
        background: white !important;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }

    .category-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }

    .subcategory-item {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }
}

/* 分类列表容器 */
body.downloads-page .category-list,
.downloads-page .category-list,
.category-navigation-wrapper .category-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    visibility: visible;
}

/* 分类组 */
body.downloads-page .category-group,
.downloads-page .category-group,
.category-navigation-wrapper .category-group {
    border-bottom: 1px solid #ecf0f1;
    padding-bottom: 20px;
    display: block;
    visibility: visible;
}

body.downloads-page .category-group:last-child,
.downloads-page .category-group:last-child,
.category-navigation-wrapper .category-group:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* 一级分类 */
body.downloads-page .primary-category,
.downloads-page .primary-category,
.category-navigation-wrapper .primary-category {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    padding: 15px 20px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 12px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    visibility: visible;
}

body.downloads-page .primary-category:hover,
.downloads-page .primary-category:hover,
.category-navigation-wrapper .primary-category:hover {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-color: #2c3e50;
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.1);
    transform: translateY(-2px);
}

/* 分类图标 */
body.downloads-page .category-icon,
.downloads-page .category-icon,
.category-navigation-wrapper .category-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border-radius: 12px;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* 分类信息 */
body.downloads-page .category-info,
.downloads-page .category-info,
.category-navigation-wrapper .category-info {
    flex: 1;
    min-width: 0;
}

body.downloads-page .category-title,
.downloads-page .category-title,
.category-navigation-wrapper .category-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    line-height: 1.3;
}

body.downloads-page .category-title a,
.downloads-page .category-title a,
.category-navigation-wrapper .category-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

body.downloads-page .category-title a:hover,
.downloads-page .category-title a:hover,
.category-navigation-wrapper .category-title a:hover {
    color: #34495e;
    text-decoration: underline;
}

body.downloads-page .resource-count,
.downloads-page .resource-count,
.category-navigation-wrapper .resource-count {
    font-size: 0.85rem;
    color: #7f8c8d;
    font-weight: 500;
    background: #f8f9fa;
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid #e9ecef;
}

/* 二级分类容器 */
body.downloads-page .secondary-categories,
.downloads-page .secondary-categories,
.category-navigation-wrapper .secondary-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-left: 65px;
    visibility: visible;
}

/* 二级分类项 - 简化设计 */
body.downloads-page .secondary-category-item,
.downloads-page .secondary-category-item,
.category-navigation-wrapper .secondary-category-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 14px;
    color: #6c757d;
    font-weight: 500;
    visibility: visible;
}

body.downloads-page .secondary-category-item:hover,
.downloads-page .secondary-category-item:hover,
.category-navigation-wrapper .secondary-category-item:hover {
    background: #2c3e50;
    color: white;
    border-color: #2c3e50;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.15);
}

body.downloads-page .secondary-category-item.active,
.downloads-page .secondary-category-item.active,
.category-navigation-wrapper .secondary-category-item.active {
    background: #2c3e50;
    color: white;
    border-color: #2c3e50;
    font-weight: 600;
}

body.downloads-page .secondary-category-item i,
.downloads-page .secondary-category-item i,
.category-navigation-wrapper .secondary-category-item i {
    font-size: 0.9rem;
    opacity: 0.8;
}

body.downloads-page .secondary-count,
.downloads-page .secondary-count,
.category-navigation-wrapper .secondary-count {
    font-size: 0.75rem;
    opacity: 0.7;
    background: rgba(255, 255, 255, 0.2);
    padding: 1px 5px;
    border-radius: 8px;
    margin-left: 2px;
}

body.downloads-page .secondary-category-item:hover .secondary-count,
.downloads-page .secondary-category-item:hover .secondary-count,
.category-navigation-wrapper .secondary-category-item:hover .secondary-count,
body.downloads-page .secondary-category-item.active .secondary-count,
.downloads-page .secondary-category-item.active .secondary-count,
.category-navigation-wrapper .secondary-category-item.active .secondary-count {
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
}

/* ===== 资源卡片样式 ===== */
/* 资源截图区域 - 全新设计 */
body.downloads-page .resource-card .resource-screenshot,
.downloads-page .resource-card .resource-screenshot {
    width: 100%;
    height: 160px;
    overflow: hidden;
    border-radius: 0;
    margin-bottom: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-bottom: 1px solid rgba(233, 236, 239, 0.5);
}

body.downloads-page .resource-card .resource-screenshot img,
.downloads-page .resource-card .resource-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: none;
    max-height: none;
    position: absolute;
    top: 0;
    left: 0;
}

body.downloads-page .resource-card:hover .resource-screenshot img,
.downloads-page .resource-card:hover .resource-screenshot img {
    transform: scale(1.08);
}

/* 截图遮罩效果 */
body.downloads-page .resource-card .resource-screenshot::after,
.downloads-page .resource-card .resource-screenshot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.downloads-page .resource-card:hover .resource-screenshot::after,
.downloads-page .resource-card:hover .resource-screenshot::after {
    opacity: 1;
}

/* 确保资源图标和截图不冲突 */
body.downloads-page .resource-card .resource-icon,
.downloads-page .resource-card .resource-icon {
    margin-bottom: 15px;
    flex-shrink: 0;
}

body.downloads-page .resource-card .resource-screenshot + .resource-icon,
.downloads-page .resource-card .resource-screenshot + .resource-icon {
    display: none;
}

/* 资源卡片内容样式 */
body.downloads-page .resource-main-content,
.downloads-page .resource-main-content {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

/* 资源卡片标题样式 */
body.downloads-page .resource-title,
.downloads-page .resource-title {
    font-size: 14px;
    font-weight: 600;
    color: #2c3e50;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-grow: 1;
    transition: color 0.3s ease;
    margin: 0;
    min-width: 0;
}

body.downloads-page .resource-card:hover .resource-title,
.downloads-page .resource-card:hover .resource-title {
    color: #3498db;
}

/* 资源元信息区域 */
body.downloads-page .resource-meta,
.downloads-page .resource-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* 资源标签区域 - 全新设计 */
body.downloads-page .resource-tags,
.downloads-page .resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

body.downloads-page .resource-tag,
.downloads-page .resource-tag {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #6c757d;
    padding: 4px 8px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 600;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.downloads-page .resource-tag::before,
.downloads-page .resource-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    transition: left 0.5s;
}

body.downloads-page .resource-card:hover .resource-tag::before,
.downloads-page .resource-card:hover .resource-tag::before {
    left: 100%;
}

/* 分类标签样式 */
body.downloads-page .resource-tag-category,
.downloads-page .resource-tag-category {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1976d2;
    border: 1px solid #90caf9;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.15);
}

/* 推荐标签样式 */
body.downloads-page .resource-tag-featured,
.downloads-page .resource-tag-featured {
    background: linear-gradient(135deg, #fff3e0 0%, #ffcc02 100%);
    color: #e65100;
    border: 1px solid #ffb300;
    box-shadow: 0 2px 8px rgba(245, 124, 0, 0.15);
}

/* 年级标签 */
body.downloads-page .resource-tag:first-child,
.downloads-page .resource-tag:first-child {
    background: linear-gradient(135deg, #e8f5e8 0%, #c8e6c9 100%);
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

/* 科目标签 */
body.downloads-page .resource-tag:nth-child(2),
.downloads-page .resource-tag:nth-child(2) {
    background: linear-gradient(135deg, #fce4ec 0%, #f8bbd9 100%);
    color: #c2185b;
    border: 1px solid #f48fb1;
}

/* 资源权限标签 - 简洁图标设计 */
body.downloads-page .resource-permission,
.downloads-page .resource-permission {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
    cursor: pointer;
}

body.downloads-page .resource-permission::before,
.downloads-page .resource-permission::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(255,255,255,0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.downloads-page .resource-card:hover .resource-permission::before,
.downloads-page .resource-card:hover .resource-permission::before {
    opacity: 1;
}

body.downloads-page .resource-permission::after,
.downloads-page .resource-permission::after {
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    font-size: 14px;
    color: white;
    z-index: 2;
}

body.downloads-page .permission-guest,
.downloads-page .permission-guest {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
}

body.downloads-page .permission-guest::after,
.downloads-page .permission-guest::after {
    content: '\f005'; /* fa-star (星形图标) */
}

body.downloads-page .permission-normal,
.downloads-page .permission-normal {
    background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
}

body.downloads-page .permission-normal::after,
.downloads-page .permission-normal::after {
    content: '\f007'; /* fa-user (用户图标) */
}

body.downloads-page .permission-vip,
.downloads-page .permission-vip {
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
}

body.downloads-page .permission-vip::after,
.downloads-page .permission-vip::after {
    content: '\f521'; /* fa-crown (皇冠图标) */
}

body.downloads-page .resource-permission:hover,
.downloads-page .resource-permission:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
}

/* 权限标签提示文字 */
body.downloads-page .resource-permission[title],
.downloads-page .resource-permission[title] {
    position: relative;
}

/* ===== 主要内容区域 ===== */
body.downloads-page .main-content,
.downloads-page .main-content {
    min-height: calc(100vh - 200px);
    padding: 20px 0;
    background: var(--wangkewang-background);
    color: var(--wangkewang-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===== 页面头部 ===== */
body.downloads-page .page-header,
.downloads-page .page-header {
    text-align: center;
    margin-bottom: 25px;
}

body.downloads-page .page-title,
.downloads-page .page-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--wangkewang-primary);
    margin-bottom: 10px;
}

body.downloads-page .page-subtitle,
.downloads-page .page-subtitle {
    font-size: 16px;
    color: var(--wangkewang-secondary);
    margin-bottom: 0;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 面包屑导航样式 ===== */
body.downloads-page .breadcrumb-nav,
.downloads-page .breadcrumb-nav {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 1px solid #e9ecef;
    padding: 15px 0;
    margin-bottom: 25px;
}

body.downloads-page .breadcrumb-list,
.downloads-page .breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

body.downloads-page .breadcrumb-item,
.downloads-page .breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

body.downloads-page .breadcrumb-item:not(:last-child)::after,
.downloads-page .breadcrumb-item:not(:last-child)::after {
    content: '\f054';
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: #adb5bd;
    font-size: 10px;
    margin-left: 8px;
}

body.downloads-page .breadcrumb-link,
.downloads-page .breadcrumb-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #6c757d;
    text-decoration: none;
    transition: color 0.3s ease;
    padding: 4px 8px;
    border-radius: 6px;
}

body.downloads-page .breadcrumb-link:hover,
.downloads-page .breadcrumb-link:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

body.downloads-page .breadcrumb-link i,
.downloads-page .breadcrumb-link i {
    font-size: 12px;
}

body.downloads-page .breadcrumb-current,
.downloads-page .breadcrumb-current {
    color: #2c3e50;
    font-weight: 600;
    padding: 4px 8px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border-radius: 6px;
}

/* ===== 快速导航标签样式 ===== */
body.downloads-page .quick-nav-tabs,
.downloads-page .quick-nav-tabs {
    background: white;
    border-bottom: 2px solid #e9ecef;
    margin-bottom: 30px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

body.downloads-page .nav-tabs-container,
.downloads-page .nav-tabs-container {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body.downloads-page .nav-tabs-container::-webkit-scrollbar,
.downloads-page .nav-tabs-container::-webkit-scrollbar {
    display: none;
}

/* 页面内导航标签样式 - 限制在特定容器内，避免影响头部导航 */
body.downloads-page .quick-nav-tabs .nav-tab,
.downloads-page .quick-nav-tabs .nav-tab,
body.downloads-page .nav-tabs-container .nav-tab,
.downloads-page .nav-tabs-container .nav-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    color: #6c757d;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

body.downloads-page .quick-nav-tabs .nav-tab:hover,
.downloads-page .quick-nav-tabs .nav-tab:hover,
body.downloads-page .nav-tabs-container .nav-tab:hover,
.downloads-page .nav-tabs-container .nav-tab:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.05);
}

body.downloads-page .quick-nav-tabs .nav-tab.active,
.downloads-page .quick-nav-tabs .nav-tab.active,
body.downloads-page .nav-tabs-container .nav-tab.active,
.downloads-page .nav-tabs-container .nav-tab.active {
    color: #3498db;
    border-bottom-color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

body.downloads-page .quick-nav-tabs .nav-tab i,
.downloads-page .quick-nav-tabs .nav-tab i,
body.downloads-page .nav-tabs-container .nav-tab i,
.downloads-page .nav-tabs-container .nav-tab i {
    font-size: 16px;
}

body.downloads-page .nav-count,
.downloads-page .nav-count {
    background: #e9ecef;
    color: #6c757d;
    padding: 2px 6px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

body.downloads-page .nav-tab.active .nav-count,
.downloads-page .nav-tab.active .nav-count {
    background: #3498db;
    color: white;
}

/* 快速导航标签动画效果 */
body.downloads-page .nav-tab::before,
.downloads-page .nav-tab::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #2980b9);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

body.downloads-page .nav-tab:hover::before,
.downloads-page .nav-tab:hover::before {
    width: 80%;
}

body.downloads-page .nav-tab.active::before,
.downloads-page .nav-tab.active::before {
    width: 100%;
}

/* ===== 响应式设计 ===== */

/* 平板设备适配 */
@media (max-width: 992px) {
    body.downloads-page .breadcrumb-nav,
    .downloads-page .breadcrumb-nav {
        padding: 12px 0;
    }
    
    body.downloads-page .breadcrumb-list,
    .downloads-page .breadcrumb-list {
        font-size: 13px;
    }
    
    body.downloads-page .quick-nav-tabs,
    .downloads-page .quick-nav-tabs {
        position: relative;
        top: 0;
    }
    
    body.downloads-page .nav-tabs-container,
    .downloads-page .nav-tabs-container {
        padding: 0 15px;
    }
    
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        padding: 12px 16px;
        font-size: 13px;
    }
    
    body.downloads-page .nav-tab i,
    .downloads-page .nav-tab i {
        font-size: 14px;
    }
    
    body.downloads-page .nav-count,
    .downloads-page .nav-count {
        font-size: 10px;
        padding: 1px 5px;
        min-width: 16px;
    }
    
    body.downloads-page .category-navigation-wrapper,
    .downloads-page .category-navigation-wrapper {
        padding: 20px;
    }
    
    body.downloads-page .category-section-title,
    .downloads-page .category-section-title {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    body.downloads-page .primary-category,
    .downloads-page .primary-category {
        padding: 12px 15px;
    }
    
    body.downloads-page .category-icon,
    .downloads-page .category-icon {
        width: 45px;
        height: 45px;
    }
    
    body.downloads-page .category-icon i,
    .downloads-page .category-icon i {
        font-size: 18px;
    }
    
    body.downloads-page .category-title,
    .downloads-page .category-title {
        font-size: 16px;
    }
    
    body.downloads-page .secondary-categories,
    .downloads-page .secondary-categories {
        margin-left: 60px;
        gap: 8px;
    }
    
    body.downloads-page .secondary-category-item,
    .downloads-page .secondary-category-item {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* 手机设备适配 */
@media (max-width: 768px) {
    body.downloads-page .breadcrumb-nav,
    .downloads-page .breadcrumb-nav {
        padding: 10px 0;
        margin-bottom: 20px;
    }
    
    body.downloads-page .breadcrumb-list,
    .downloads-page .breadcrumb-list {
        font-size: 12px;
        gap: 6px;
    }
    
    body.downloads-page .breadcrumb-item,
    .downloads-page .breadcrumb-item {
        gap: 6px;
    }
    
    body.downloads-page .breadcrumb-link,
    .downloads-page .breadcrumb-link {
        padding: 3px 6px;
        font-size: 12px;
    }
    
    body.downloads-page .breadcrumb-link i,
    .downloads-page .breadcrumb-link i {
        font-size: 10px;
    }
    
    body.downloads-page .breadcrumb-current,
    .downloads-page .breadcrumb-current {
        padding: 3px 6px;
        font-size: 12px;
    }
    
    body.downloads-page .quick-nav-tabs,
    .downloads-page .quick-nav-tabs {
        margin-bottom: 25px;
        box-shadow: 0 1px 5px rgba(0,0,0,0.05);
    }
    
    body.downloads-page .nav-tabs-container,
    .downloads-page .nav-tabs-container {
        padding: 0 10px;
        gap: 3px;
    }
    
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        padding: 10px 12px;
        font-size: 12px;
        border-bottom-width: 2px;
        min-width: auto;
        flex: 0 0 auto;
    }
    
    body.downloads-page .nav-tab i,
    .downloads-page .nav-tab i {
        font-size: 12px;
        margin-right: 4px;
    }
    
    body.downloads-page .nav-tab span,
    .downloads-page .nav-tab span {
        display: none;
    }
    
    body.downloads-page .nav-tab i + .nav-count,
    .downloads-page .nav-tab i + .nav-count {
        margin-left: 4px;
    }
    
    body.downloads-page .nav-count,
    .downloads-page .nav-count {
        font-size: 9px;
        padding: 1px 4px;
        min-width: 14px;
    }
    
    /* 显示滚动指示器 */
    body.downloads-page .nav-tabs-container::after,
    .downloads-page .nav-tabs-container::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.9));
        pointer-events: none;
        z-index: 1;
    }
    
    body.downloads-page .nav-tabs-container.has-scroll::after,
    .downloads-page .nav-tabs-container.has-scroll::after {
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.95));
    }
    
    body.downloads-page .category-navigation-wrapper,
    .downloads-page .category-navigation-wrapper {
        padding: 15px;
        margin-bottom: 20px;
    }
    
    body.downloads-page .category-section-title,
    .downloads-page .category-section-title {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    body.downloads-page .category-list,
    .downloads-page .category-list {
        gap: 15px;
    }
    
    body.downloads-page .category-group,
    .downloads-page .category-group {
        padding-bottom: 15px;
    }
    
    body.downloads-page .primary-category,
    .downloads-page .primary-category {
        padding: 10px 12px;
        gap: 12px;
    }
    
    body.downloads-page .category-icon,
    .downloads-page .category-icon {
        width: 40px;
        height: 40px;
    }
    
    body.downloads-page .category-icon i,
    .downloads-page .category-icon i {
        font-size: 16px;
    }
    
    body.downloads-page .category-title,
    .downloads-page .category-title {
        font-size: 15px;
    }
    
    body.downloads-page .resource-count,
    .downloads-page .resource-count {
        font-size: 13px;
    }
    
    body.downloads-page .secondary-categories,
    .downloads-page .secondary-categories {
        margin-left: 52px;
        gap: 6px;
    }
    
    body.downloads-page .secondary-category-item,
    .downloads-page .secondary-category-item {
        padding: 5px 10px;
        font-size: 12px;
        border-radius: 15px;
    }
    
    body.downloads-page .secondary-category-item i,
    .downloads-page .secondary-category-item i {
        font-size: 10px;
    }
}

/* 小屏手机适配 */
@media (max-width: 480px) {
    body.downloads-page .breadcrumb-nav,
    .downloads-page .breadcrumb-nav {
        padding: 8px 0;
        margin-bottom: 15px;
    }
    
    body.downloads-page .breadcrumb-list,
    .downloads-page .breadcrumb-list {
        font-size: 11px;
        gap: 4px;
    }
    
    body.downloads-page .breadcrumb-link,
    .downloads-page .breadcrumb-link {
        padding: 2px 4px;
        font-size: 11px;
    }
    
    body.downloads-page .breadcrumb-current,
    .downloads-page .breadcrumb-current {
        padding: 2px 4px;
        font-size: 11px;
    }
    
    body.downloads-page .quick-nav-tabs,
    .downloads-page .quick-nav-tabs {
        margin-bottom: 20px;
    }
    
    body.downloads-page .nav-tabs-container,
    .downloads-page .nav-tabs-container {
        padding: 0 5px;
        gap: 2px;
    }
    
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        padding: 8px 10px;
        font-size: 11px;
    }
    
    body.downloads-page .nav-tab i,
    .downloads-page .nav-tab i {
        font-size: 11px;
    }
    
    body.downloads-page .nav-count,
    .downloads-page .nav-count {
        font-size: 8px;
        padding: 1px 3px;
        min-width: 12px;
    }
    
    body.downloads-page .category-navigation-wrapper,
    .downloads-page .category-navigation-wrapper {
        padding: 12px;
    }
    
    body.downloads-page .category-section-title,
    .downloads-page .category-section-title {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    body.downloads-page .primary-category,
    .downloads-page .primary-category {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 12px;
    }
    
    body.downloads-page .category-icon,
    .downloads-page .category-icon {
        width: 35px;
        height: 35px;
    }
    
    body.downloads-page .category-icon i,
    .downloads-page .category-icon i {
        font-size: 14px;
    }
    
    body.downloads-page .category-info,
    .downloads-page .category-info {
        width: 100%;
    }
    
    body.downloads-page .category-title,
    .downloads-page .category-title {
        font-size: 14px;
    }
    
    body.downloads-page .secondary-categories,
    .downloads-page .secondary-categories {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
    }
    
    body.downloads-page .secondary-category-item,
    .downloads-page .secondary-category-item {
        padding: 4px 8px;
        font-size: 11px;
        flex: 1 0 auto;
        text-align: center;
        justify-content: center;
        min-width: 0;
    }
}

/* 超小屏设备适配 */
@media (max-width: 360px) {
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        padding: 6px 8px;
        font-size: 10px;
    }
    
    body.downloads-page .nav-tab i,
    .downloads-page .nav-tab i {
        font-size: 10px;
    }
    
    body.downloads-page .nav-count,
    .downloads-page .nav-count {
        font-size: 7px;
        padding: 1px 2px;
        min-width: 10px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    body.downloads-page .nav-tab:hover,
    .downloads-page .nav-tab:hover {
        background: rgba(52, 152, 219, 0.05);
    }
    
    body.downloads-page .nav-tab:active,
    .downloads-page .nav-tab:active {
        background: rgba(52, 152, 219, 0.1);
        transform: scale(0.98);
    }
    
    body.downloads-page .breadcrumb-link,
    .downloads-page .breadcrumb-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    body.downloads-page .breadcrumb-link:active,
    .downloads-page .breadcrumb-link:active {
        transform: scale(0.95);
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab {
        border-bottom-width: 1px;
    }
    
    body.downloads-page .nav-tab::before,
    .downloads-page .nav-tab::before {
        height: 2px;
    }
    
    body.downloads-page .breadcrumb-current,
    .downloads-page .breadcrumb-current {
        border: 0.5px solid transparent;
    }
}

/* 打印样式 */
@media print {
    body.downloads-page .breadcrumb-nav,
    .downloads-page .breadcrumb-nav,
    body.downloads-page .quick-nav-tabs,
    .downloads-page .quick-nav-tabs {
        display: none;
    }
}

/* 减少动画效果（用户偏好） */
@media (prefers-reduced-motion: reduce) {
    body.downloads-page .nav-tab,
    .downloads-page .nav-tab,
    body.downloads-page .nav-tab::before,
    .downloads-page .nav-tab::before,
    body.downloads-page .breadcrumb-link,
    .downloads-page .breadcrumb-link,
    body.downloads-page .quick-nav-tabs,
    .downloads-page .quick-nav-tabs {
        transition: none;
        animation: none;
    }
}

/* ===== 动画效果 ===== */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 资源网格布局 ===== */
body.downloads-page .resource-grid,
.downloads-page .resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

/* ===== 全新资源卡片设计 ===== */
body.downloads-page .resource-card,
.downloads-page .resource-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    height: auto;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

body.downloads-page .resource-card::before,
.downloads-page .resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3498db 0%, #2980b9 50%, #1abc9c 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.downloads-page .resource-card:hover,
.downloads-page .resource-card:hover {
    border-color: #3498db;
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.2);
}

body.downloads-page .resource-card:hover::before,
.downloads-page .resource-card:hover::before {
    opacity: 1;
}

/* 资源卡片内容区域 */
body.downloads-page .resource-card-content,
.downloads-page .resource-card-content {
    padding: 10px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 查看数显示 - 右上角 */
body.downloads-page .resource-view-count,
.downloads-page .resource-view-count {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
    z-index: 10;
    transition: all 0.3s ease;
}

body.downloads-page .resource-view-count i,
.downloads-page .resource-view-count i {
    font-size: 10px;
    opacity: 0.8;
}

body.downloads-page .resource-card:hover .resource-view-count,
.downloads-page .resource-card:hover .resource-view-count {
    background: rgba(52, 152, 219, 0.9);
    transform: scale(1.05);
}

/* 资源图标样式 - 全新设计 */
body.downloads-page .resource-icon,
.downloads-page .resource-icon {
    width: 100%;
    height: 160px;
    border-radius: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    position: relative;
    border-bottom: 1px solid rgba(233, 236, 239, 0.5);
}

body.downloads-page .resource-icon i,
.downloads-page .resource-icon i {
    font-size: 48px;
    color: #6c757d;
    transition: all 0.3s ease;
    z-index: 2;
    position: relative;
}

body.downloads-page .resource-card:hover .resource-icon i,
.downloads-page .resource-card:hover .resource-icon i {
    color: #3498db;
    transform: scale(1.1);
}

/* 图标背景装饰 */
body.downloads-page .resource-icon::before,
.downloads-page .resource-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(41, 128, 185, 0.1) 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

body.downloads-page .resource-card:hover .resource-icon::before,
.downloads-page .resource-card:hover .resource-icon::before {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.2) 0%, rgba(41, 128, 185, 0.2) 100%);
}

/* ===== 加载状态和无数据样式 ===== */
body.downloads-page .loading-container,
.downloads-page .loading-container {
    text-align: center;
    padding: 40px;
}

body.downloads-page .loading-spinner,
.downloads-page .loading-spinner {
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid var(--wangkewang-border);
    border-radius: 50%;
    border-top-color: var(--wangkewang-primary);
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 15px;
}

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

body.downloads-page .load-more-btn,
.downloads-page .load-more-btn {
    margin: 0 auto;
    min-width: 150px;
}

body.downloads-page .no-data,
.downloads-page .no-data {
    text-align: center;
    padding: 60px 40px;
    color: var(--wangkewang-secondary);
    background: var(--wangkewang-white);
    border-radius: 15px;
    border: 2px dashed var(--wangkewang-border);
    margin: 20px 0;
}

body.downloads-page .no-data i,
.downloads-page .no-data i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.6;
    color: var(--wangkewang-muted);
}

body.downloads-page .no-data h4,
.downloads-page .no-data h4 {
    font-size: 24px;
    font-weight: 600;
    color: var(--wangkewang-primary);
    margin-bottom: 15px;
}

body.downloads-page .no-data p,
.downloads-page .no-data p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 10px;
    color: var(--wangkewang-secondary);
}

body.downloads-page .no-data p.small,
.downloads-page .no-data p.small {
    font-size: 14px;
    margin-bottom: 20px;
    opacity: 0.8;
}

body.downloads-page .no-data .btn,
.downloads-page .no-data .btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
}

body.downloads-page .no-data .btn:hover,
.downloads-page .no-data .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* ===== 文本样式 ===== */
body.downloads-page .text-muted,
.downloads-page .text-muted {
    color: var(--wangkewang-muted);
    text-decoration: none;
}

body.downloads-page .text-muted:hover,
.downloads-page .text-muted:hover {
    color: var(--wangkewang-secondary);
}

/* ===== 按钮样式 ===== */
body.downloads-page .btn,
.downloads-page .btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    min-height: 44px;
}

body.downloads-page .btn-primary,
.downloads-page .btn-primary {
    background: var(--wangkewang-primary);
    color: var(--wangkewang-white);
}

body.downloads-page .btn-primary:hover,
.downloads-page .btn-primary:hover {
    background: #2c3e50;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.3);
}

body.downloads-page .btn-secondary,
.downloads-page .btn-secondary {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-primary);
    border: 2px solid var(--wangkewang-border);
}

body.downloads-page .btn-secondary:hover,
.downloads-page .btn-secondary:hover {
    background: var(--wangkewang-white);
    border-color: var(--wangkewang-primary);
}

/* ===== 表单样式 ===== */
body.downloads-page .form-group,
.downloads-page .form-group {
    display: flex;
    flex-direction: column;
}

body.downloads-page .form-label,
.downloads-page .form-label {
    font-weight: 600;
    color: var(--wangkewang-primary);
    margin-bottom: 8px;
    font-size: 14px;
}

body.downloads-page .form-input,
.downloads-page .form-input {
    padding: 12px 15px;
    border: 2px solid var(--wangkewang-border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: var(--wangkewang-white);
    color: var(--wangkewang-primary);
}

body.downloads-page .form-input:focus,
.downloads-page .form-input:focus {
    outline: none;
    border-color: var(--wangkewang-primary);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}

/* 搜索输入框 */
body.downloads-page .search-input,
.downloads-page .search-input {
    position: relative;
}

body.downloads-page .search-input .form-input,
.downloads-page .search-input .form-input {
    padding-left: 45px;
}

body.downloads-page .search-icon,
.downloads-page .search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--wangkewang-secondary);
    font-size: 16px;
}

/* ===== 内容卡片 ===== */
body.downloads-page .content-card,
.downloads-page .content-card {
    background: var(--wangkewang-white);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--wangkewang-shadow-md);
    border: 1px solid var(--wangkewang-border);
}

/* ===== 筛选表单 ===== */
body.downloads-page .filter-form,
.downloads-page .filter-form {
    display: grid;
    gap: 20px;
}

body.downloads-page .filter-row,
.downloads-page .filter-row {
    display: grid;
    grid-template-columns: 3fr 1.5fr 1.5fr 1fr;
    gap: 15px;
    align-items: end;
}

body.downloads-page .advanced-filters,
.downloads-page .advanced-filters {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 15px;
    margin-top: 15px;
}

/* ===== 复选框样式 ===== */
body.downloads-page .checkbox-group,
.downloads-page .checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

body.downloads-page .checkbox-group input[type="checkbox"],
.downloads-page .checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--wangkewang-primary);
}

/* ===== 响应式设计 - 移动端优化 ===== */
@media (max-width: 768px) {
    body.downloads-page .filter-row,
    .downloads-page .filter-row {
        grid-template-columns: 1fr;
    }
    
    body.downloads-page .category-nav,
    .downloads-page .category-nav {
        justify-content: flex-start;
    }
    
    body.downloads-page .page-title,
    .downloads-page .page-title {
        font-size: 24px;
    }
    
    body.downloads-page .resources-grid,
    .downloads-page .resources-grid {
        grid-template-columns: 1fr;
    }
    
    body.downloads-page .container,
    .downloads-page .container {
        padding: 0 15px;
    }
    
    body.downloads-page .main-content,
    .downloads-page .main-content {
        padding: 20px 0;
    }
    
    body.downloads-page .content-card,
    .downloads-page .content-card {
        padding: 20px;
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    body.downloads-page .category-link,
    .downloads-page .category-link {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    body.downloads-page .page-title,
    .downloads-page .page-title {
        font-size: 20px;
    }
    
    body.downloads-page .filter-row,
    .downloads-page .filter-row {
        gap: 10px;
    }
    
    body.downloads-page .btn,
    .downloads-page .btn {
        padding: 10px 16px;
        font-size: 13px;
    }
}

/* ===== 详情页面专用样式 ===== */
body.downloads-page .breadcrumb,
.downloads-page .breadcrumb {
    margin-bottom: 30px;
}

body.downloads-page .breadcrumb-list,
.downloads-page .breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
}

body.downloads-page .breadcrumb-item,
.downloads-page .breadcrumb-item {
    display: flex;
    align-items: center;
    color: var(--wangkewang-secondary);
}

body.downloads-page .breadcrumb-item a,
.downloads-page .breadcrumb-item a {
    color: var(--wangkewang-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

body.downloads-page .breadcrumb-item a:hover,
.downloads-page .breadcrumb-item a:hover {
    color: var(--wangkewang-primary);
}

body.downloads-page .breadcrumb-separator,
.downloads-page .breadcrumb-separator {
    color: var(--wangkewang-muted);
    margin: 0 8px;
}

/* 详情页网格布局 */
body.downloads-page .detail-grid,
.downloads-page .detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 30px;
    width: 100%;
    max-width: 100%;
}

/* 详情页专用网格布局（更严格的比例控制） */
body.detail-page .detail-grid,
.detail-page .detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 30px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 资源头部 */
body.downloads-page .resource-header,
.downloads-page .resource-header {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 20px;
}

body.downloads-page .resource-image,
.downloads-page .resource-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    background: var(--wangkewang-gray-light);
}

body.downloads-page .resource-badges,
.downloads-page .resource-badges {
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

body.downloads-page .badge,
.downloads-page .badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

body.downloads-page .badge-featured,
.downloads-page .badge-featured {
    background: rgba(231, 76, 60, 0.9);
    color: white;
}

body.downloads-page .badge-permission,
.downloads-page .badge-permission {
    background: rgba(255, 255, 255, 0.9);
    color: var(--wangkewang-primary);
}

body.downloads-page .badge-permission.guest,
.downloads-page .badge-permission.guest {
    background: rgba(39, 174, 96, 0.9);
    color: white;
}

body.downloads-page .badge-permission.vip,
.downloads-page .badge-permission.vip {
    background: rgba(231, 76, 60, 0.9);
    color: white;
}

/* 详情页资源标题 */
body.downloads-page .detail-grid .resource-title,
.downloads-page .detail-grid .resource-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--wangkewang-primary);
    margin-bottom: 20px;
    line-height: 1.3;
}

/* 资源统计 */
body.downloads-page .resource-stats,
.downloads-page .resource-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

body.downloads-page .stat-item,
.downloads-page .stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 15px;
    background: var(--wangkewang-gray-light);
    border-radius: 10px;
    font-size: 14px;
    color: var(--wangkewang-secondary);
}

body.downloads-page .stat-icon,
.downloads-page .stat-icon {
    color: var(--wangkewang-primary);
}

/* 资源标签 */
body.downloads-page .resource-labels,
.downloads-page .resource-labels {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

body.downloads-page .label,
.downloads-page .label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

body.downloads-page .label-grade,
.downloads-page .label-grade {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-primary);
}

body.downloads-page .label-downloads,
.downloads-page .label-downloads {
    background: #3498db;
    color: white;
    font-weight: 600;
}

body.downloads-page .label-subject,
.downloads-page .label-subject {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-primary);
}

body.downloads-page .label-tag,
.downloads-page .label-tag {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-secondary);
    font-size: 12px;
}

/* 资源描述 */
body.downloads-page .resource-description,
.downloads-page .resource-description {
    line-height: 1.6;
    color: var(--wangkewang-secondary);
    margin-bottom: 25px;
}

body.downloads-page .description-title,
.downloads-page .description-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--wangkewang-primary);
    margin-bottom: 12px;
}

/* 下载按钮区域 */
body.downloads-page .download-actions,
.downloads-page .download-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

body.downloads-page .btn-disabled,
.downloads-page .btn-disabled {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-muted);
    cursor: not-allowed;
}

/* 详情页侧边栏 */
body.downloads-page .sidebar,
.downloads-page .sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
    width: 100%;
    max-width: 380px;
    min-width: 320px;
}

/* 详情页专用侧边栏约束 */
body.detail-page .sidebar,
.detail-page .sidebar {
    display: flex;
    flex-direction: column;
    gap: 25px;
    width: 360px;
    max-width: 360px;
    min-width: 320px;
    flex-shrink: 0;
}

body.downloads-page .sidebar-card,
.downloads-page .sidebar-card {
    background: var(--wangkewang-white);
    border: 2px solid var(--wangkewang-border);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 30px rgba(44, 62, 80, 0.12);
    transition: all 0.3s ease;
}

body.downloads-page .sidebar-card:hover,
.downloads-page .sidebar-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(44, 62, 80, 0.15);
}

body.downloads-page .sidebar-title,
.downloads-page .sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--wangkewang-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--wangkewang-gray-light);
}

body.downloads-page .sidebar-title i,
.downloads-page .sidebar-title i {
    color: var(--wangkewang-primary);
    font-size: 20px;
}

/* 下载区域 */
body.downloads-page .download-section,
.downloads-page .download-section {
    text-align: center;
}

body.downloads-page .download-btn,
.downloads-page .download-btn {
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--wangkewang-primary) 0%, #2c3e50 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    text-decoration: none;
}

body.downloads-page .download-btn:hover,
.downloads-page .download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 62, 80, 0.3);
    background: linear-gradient(135deg, #2c3e50 0%, var(--wangkewang-primary) 100%);
}

body.downloads-page .download-btn:disabled,
.downloads-page .download-btn:disabled {
    background: var(--wangkewang-gray-light);
    color: var(--wangkewang-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

body.downloads-page .download-btn i,
.downloads-page .download-btn i {
    font-size: 18px;
}

/* 二维码区域 */
body.downloads-page .qrcode-section,
.downloads-page .qrcode-section {
    background: var(--wangkewang-gray-light);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    margin-top: 15px;
}

body.downloads-page .qrcode-title,
.downloads-page .qrcode-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--wangkewang-primary);
    margin-bottom: 15px;
}

body.downloads-page .qrcode-image,
.downloads-page .qrcode-image {
    width: 280px;
    height: 280px;
    border-radius: 8px;
    background: white;
    padding: 10px;
    margin: 0 auto 15px;
    display: block;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border: 1px solid #e0e0e0;
}

body.downloads-page .qrcode-tip,
.downloads-page .qrcode-tip {
    font-size: 12px;
    color: var(--wangkewang-secondary);
    line-height: 1.5;
    font-weight: 500;
}

/* 相关资源 */
body.downloads-page .related-resource,
.downloads-page .related-resource {
    display: flex;
    gap: 12px;
    padding: 12px;
    border-radius: 10px;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: 10px;
}

body.downloads-page .related-resource:hover,
.downloads-page .related-resource:hover {
    background: var(--wangkewang-border);
}

body.downloads-page .related-image,
.downloads-page .related-image {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--wangkewang-border);
    flex-shrink: 0;
}

body.downloads-page .related-info,
.downloads-page .related-info {
    flex: 1;
    min-width: 0;
}

body.downloads-page .related-title,
.downloads-page .related-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--wangkewang-primary);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

body.downloads-page .related-meta,
.downloads-page .related-meta {
    font-size: 11px;
    color: var(--wangkewang-muted);
}

/* 下载说明 */
body.downloads-page .download-notice,
.downloads-page .download-notice {
    background: var(--wangkewang-gray-light);
    border-left: 4px solid var(--wangkewang-primary);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

body.downloads-page .download-notice h4,
.downloads-page .download-notice h4 {
    color: var(--wangkewang-primary);
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
}

body.downloads-page .download-notice p,
.downloads-page .download-notice p {
    color: var(--wangkewang-secondary);
    font-size: 13px;
    line-height: 1.4;
    margin: 0;
}

/* ===== 详情页响应式设计 ===== */
@media (max-width: 1024px) {
    body.downloads-page .detail-grid,
    .downloads-page .detail-grid {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 25px;
    }

    body.downloads-page .sidebar,
    .downloads-page .sidebar {
        max-width: 320px;
        min-width: 280px;
    }
}

@media (max-width: 768px) {
    body.downloads-page .detail-grid,
    .downloads-page .detail-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    body.downloads-page .sidebar,
    .downloads-page .sidebar {
        width: 100%;
        max-width: 100%;
        min-width: auto;
        order: -1;
    }

    body.downloads-page .resource-stats,
    .downloads-page .resource-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    body.downloads-page .download-actions,
    .downloads-page .download-actions {
        flex-direction: column;
    }

    /* 移动端隐藏下载二维码 */
    body.downloads-page .qrcode-section,
    .downloads-page .qrcode-section {
        display: none;
    }
}

/* ===== 确保分类导航在所有情况下都可见 ===== */
body.downloads-page .category-navigation-wrapper,
.downloads-page .category-navigation-wrapper,
body.downloads-page .category-list,
.downloads-page .category-list,
body.downloads-page .category-group,
.downloads-page .category-group,
body.downloads-page .primary-category,
.downloads-page .primary-category,
body.downloads-page .secondary-categories,
.downloads-page .secondary-categories,
body.downloads-page .secondary-category-item,
.downloads-page .secondary-category-item {
    display: block;
    visibility: visible;
    opacity: 1;
}

/* ===== 详情页面专用样式增强 ===== */

/* 详情页主体布局 */
body.detail-page .main-content-area,
.detail-page .main-content-area {
    min-height: 600px;
    width: 100%;
    overflow: hidden;
}

/* 左侧内容区域约束 */
body.detail-page .main-content-area,
.detail-page .main-content-area {
    max-width: 100%;
    word-wrap: break-word;
    word-break: break-word;
}

body.detail-page .content-card,
.detail-page .content-card {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 长文本约束 */
body.detail-page .resource-title,
.detail-page .resource-title,
body.detail-page .resource-description,
.detail-page .resource-description {
    max-width: 100%;
    word-wrap: break-word;
    word-break: break-word;
    overflow-wrap: break-word;
}

/* 图片约束 */
body.detail-page .resource-screenshot img,
.detail-page .resource-screenshot img {
    max-width: 100%;
    height: auto;
}

/* 表格和宽内容约束 */
body.detail-page .description-content table,
.detail-page .description-content table {
    max-width: 100%;
    table-layout: fixed;
    word-wrap: break-word;
}

body.detail-page .description-content pre,
.detail-page .description-content pre {
    max-width: 100%;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

body.detail-page .description-content code,
.detail-page .description-content code {
    max-width: 100%;
    word-wrap: break-word;
}

/* 确保所有内容都在约束范围内 */
body.detail-page .description-content *,
.detail-page .description-content * {
    max-width: 100%;
    box-sizing: border-box;
}

/* 特别长的URL或文本处理 */
body.detail-page .description-content a,
.detail-page .description-content a {
    word-wrap: break-word;
    word-break: break-all;
    overflow-wrap: break-word;
}

/* 资源标题增强 */
body.detail-page .resource-title,
.detail-page .resource-title {
    font-size: 32px;
    font-weight: 800;
    color: #2c3e50;
    margin-bottom: 25px;
    line-height: 1.2;
    word-break: break-word;
}

@media (max-width: 768px) {
    body.detail-page .resource-title,
    .detail-page .resource-title {
        font-size: 24px;
        margin-bottom: 20px;
    }
}

/* 资源标签增强 */
body.detail-page .resource-labels,
.detail-page .resource-labels {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

body.detail-page .label,
.detail-page .label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

body.detail-page .label:hover,
.detail-page .label:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

body.detail-page .label-featured,
.detail-page .label-featured {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
}

body.detail-page .label-permission,
.detail-page .label-permission {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
}

body.detail-page .label-grade,
.detail-page .label-grade {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    color: white;
}

body.detail-page .label-subject,
.detail-page .label-subject {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    color: white;
}

body.detail-page .label-downloads,
.detail-page .label-downloads {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
}

body.detail-page .label-tag,
.detail-page .label-tag {
    background: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%);
    color: white;
}

/* 资源描述区域 */
body.detail-page .resource-description,
.detail-page .resource-description {
    margin: 35px 0;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid #e9ecef;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

body.detail-page .description-title,
.detail-page .description-title {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3498db;
    display: flex;
    align-items: center;
    gap: 10px;
}

body.detail-page .description-title::before,
.detail-page .description-title::before {
    content: '';
    width: 5px;
    height: 20px;
    background: #3498db;
    border-radius: 3px;
}

body.detail-page .description-content,
.detail-page .description-content {
    font-size: 15px;
    line-height: 1.8;
    color: #34495e;
}

body.detail-page .description-content p,
.detail-page .description-content p {
    margin-bottom: 15px;
}

body.detail-page .description-content ul,
body.detail-page .description-content ol,
.detail-page .description-content ul,
.detail-page .description-content ol {
    margin-bottom: 15px;
    padding-left: 25px;
}

body.detail-page .description-content li,
.detail-page .description-content li {
    margin-bottom: 8px;
}

/* 资源截图优化 */
body.detail-page .resource-screenshot,
.detail-page .resource-screenshot {
    margin: 25px 0;
    text-align: center;
}

body.detail-page .resource-screenshot img,
.detail-page .resource-screenshot img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border: 3px solid white;
    transition: all 0.3s ease;
}

body.detail-page .resource-screenshot img:hover,
.detail-page .resource-screenshot img:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

/* 下载按钮增强 */
body.detail-page .download-btn,
.detail-page .download-btn {
    width: 100%;
    padding: 18px 24px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 15px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.2);
    position: relative;
    overflow: hidden;
}

body.detail-page .download-btn::before,
.detail-page .download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

body.detail-page .download-btn:hover::before,
.detail-page .download-btn:hover::before {
    left: 100%;
}

body.detail-page .download-btn.login-btn,
.detail-page .download-btn.login-btn {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

body.detail-page .download-btn.vip-btn,
.detail-page .download-btn.vip-btn {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

body.detail-page .download-btn.vip-upgrade-btn,
.detail-page .download-btn.vip-upgrade-btn {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

/* 进度条样式 */
body.detail-page .progress-bar,
.detail-page .progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 10px;
}

body.detail-page .progress-fill,
.detail-page .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #27ae60, #2ecc71);
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

/* 二维码区域优化 */
body.detail-page .qrcode-section,
.detail-page .qrcode-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid #e9ecef;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

body.detail-page .qrcode-section.login-required,
body.detail-page .qrcode-section.vip-required,
.detail-page .qrcode-section.login-required,
.detail-page .qrcode-section.vip-required {
    background: linear-gradient(135deg, #fff3cd 0%, #ffe8a1 100%);
    border-color: #ffc107;
}

body.detail-page .qrcode-image,
.detail-page .qrcode-image {
    width: 200px;
    height: 200px;
    border-radius: 10px;
    padding: 8px;
    background: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

body.detail-page .qrcode-placeholder,
.detail-page .qrcode-placeholder {
    padding: 30px 20px;
    text-align: center;
}

body.detail-page .qrcode-placeholder i,
.detail-page .qrcode-placeholder i {
    font-size: 36px;
    color: #ffc107;
    margin-bottom: 15px;
}

body.detail-page .qrcode-placeholder p,
.detail-page .qrcode-placeholder p {
    font-size: 14px;
    font-weight: 600;
    color: #856404;
    margin-bottom: 15px;
}

body.detail-page .qrcode-login-btn,
body.detail-page .qrcode-vip-btn,
.detail-page .qrcode-login-btn,
.detail-page .qrcode-vip-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

body.detail-page .qrcode-login-btn,
.detail-page .qrcode-login-btn {
    background: #3498db;
    color: white;
}

body.detail-page .qrcode-vip-btn,
.detail-page .qrcode-vip-btn {
    background: #f39c12;
    color: white;
}

/* 收藏功能样式 */
body.detail-page .favorite-section,
.detail-page .favorite-section {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 12px;
    border: 2px solid #e9ecef;
}

body.detail-page .favorite-btn,
.detail-page .favorite-btn {
    padding: 12px 24px;
    border: 2px solid #e74c3c;
    background: white;
    color: #e74c3c;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

body.detail-page .favorite-btn:hover,
.detail-page .favorite-btn:hover {
    background: #e74c3c;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

body.detail-page .favorite-btn.favorited,
.detail-page .favorite-btn.favorited {
    background: #e74c3c;
    color: white;
}

body.detail-page .favorite-count,
.detail-page .favorite-count {
    font-size: 13px;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* 资源信息卡片 */
body.detail-page .resource-info,
.detail-page .resource-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

body.detail-page .info-item,
.detail-page .info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-radius: 10px;
    border: 1px solid #e9ecef;
    font-size: 14px;
    color: #495057;
    transition: all 0.3s ease;
}

body.detail-page .info-item:hover,
.detail-page .info-item:hover {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-color: #3498db;
    transform: translateX(5px);
}

body.detail-page .info-item i,
.detail-page .info-item i {
    color: #3498db;
    font-size: 16px;
    width: 20px;
}

/* 同类别推荐资源 */
body.detail-page .same-category-recommendations,
.detail-page .same-category-recommendations {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid #e9ecef;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}

body.detail-page .section-title,
.detail-page .section-title {
    font-size: 22px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 15px;
    border-bottom: 3px solid #3498db;
}

body.detail-page .section-title i,
.detail-page .section-title i {
    color: #3498db;
    font-size: 20px;
}

body.detail-page .section-title .subtitle,
.detail-page .section-title .subtitle {
    font-size: 14px;
    font-weight: 500;
    color: #6c757d;
    margin-left: auto;
    background: #e3f2fd;
    padding: 6px 12px;
    border-radius: 15px;
    border: 1px solid #bbdefb;
}

body.detail-page .same-category-grid,
.detail-page .same-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

@media (max-width: 768px) {
    body.detail-page .same-category-grid,
    .detail-page .same-category-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

/* 资源卡片紧凑版 */
body.detail-page .resource-card-compact,
.detail-page .resource-card-compact {
    display: flex;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 15px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    gap: 15px;
}

body.detail-page .resource-card-compact:hover,
.detail-page .resource-card-compact:hover {
    border-color: #3498db;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.15);
}

body.detail-page .resource-thumbnail,
.detail-page .resource-thumbnail {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

body.detail-page .resource-thumbnail img,
.detail-page .resource-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

body.detail-page .thumbnail-placeholder,
.detail-page .thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
    color: #6c757d;
    font-size: 24px;
}

body.detail-page .featured-badge,
.detail-page .featured-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 20px;
    height: 20px;
    background: #e74c3c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
    box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
}

body.detail-page .view-count-badge,
.detail-page .view-count-badge {
    position: absolute;
    bottom: 5px;
    left: 5px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 8px;
    font-size: 10px;
    display: flex;
    align-items: center;
    gap: 3px;
    backdrop-filter: blur(10px);
}

body.detail-page .resource-info-compact,
.detail-page .resource-info-compact {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
}

body.detail-page .resource-title-compact,
.detail-page .resource-title-compact {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    line-height: 1.3;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

body.detail-page .resource-meta-compact,
.detail-page .resource-meta-compact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

body.detail-page .download-count,
.detail-page .download-count {
    font-size: 12px;
    color: #6c757d;
    display: flex;
    align-items: center;
    gap: 4px;
}

body.detail-page .permission-badge,
.detail-page .permission-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 10px;
    text-transform: uppercase;
}

body.detail-page .permission-guest,
.detail-page .permission-guest {
    background: #d4edda;
    color: #155724;
}

body.detail-page .permission-normal,
.detail-page .permission-normal {
    background: #d1ecf1;
    color: #0c5460;
}

body.detail-page .permission-vip,
.detail-page .permission-vip {
    background: #fff3cd;
    color: #856404;
}

/* Toast 通知样式 */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    padding: 16px 20px;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    font-size: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    opacity: 0;
    transform: translateY(-30px);
    transition: all 0.3s ease;
    max-width: 400px;
    backdrop-filter: blur(10px);
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式优化 */
@media (max-width: 1024px) {
    body.detail-page .detail-grid,
    .detail-page .detail-grid {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 25px;
        max-width: 100%;
    }

    body.detail-page .sidebar,
    .detail-page .sidebar {
        width: 320px;
        max-width: 320px;
        min-width: 280px;
    }
}

@media (max-width: 768px) {
    body.detail-page .detail-grid,
    .detail-page .detail-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
    }

    body.detail-page .sidebar,
    .detail-page .sidebar {
        width: 100%;
        max-width: 100%;
        min-width: auto;
        order: -1;
    }

    body.detail-page .resource-card-compact,
    .detail-page .resource-card-compact {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    body.detail-page .resource-thumbnail,
    .detail-page .resource-thumbnail {
        width: 120px;
        height: 120px;
        margin: 0 auto;
    }

    body.detail-page .qrcode-image,
    .detail-page .qrcode-image {
        width: 180px;
        height: 180px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    body.detail-page .resource-description,
    .detail-page .resource-description {
        background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
        border-color: #445566;
    }

    body.detail-page .description-content,
    .detail-page .description-content {
        color: #ecf0f1;
    }
}

/* 动画优化 */
@media (prefers-reduced-motion: reduce) {
    body.detail-page .resource-card-compact,
    .detail-page .resource-card-compact,
    body.detail-page .download-btn,
    .detail-page .download-btn,
    body.detail-page .label,
    .detail-page .label {
        transition: none;
        animation: none;
    }
}