.nav-page {
    display: flex;
    gap: 24px;
    margin-top: 30px;
}

/* 左侧导航 */
.side-nav {
    width: 180px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    height: fit-content;
    background: #fff;
    border-radius: 6px;
    padding: 16px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.side-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: #888;
    padding: 8px 20px;
    margin-bottom: 8px;
}

.side-nav a {
    display: block;
    padding: 12px 20px;
    font-size: 15px;
    color: #333;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.side-nav a:hover {
    background: #f5f3ff;
    color: #1e40af;
    border-left-color: #1e40af;
}

.side-nav a.active {
    background: #f5f3ff;
    color: #1e40af;
    border-left-color: #1e40af;
    font-weight: 500;
}

/* 主内容区 */
.nav-main {
    flex: 1;
    min-width: 0;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 24px;
    padding-left: 15px;
    border-left: 4px solid #1e40af;
}

/* 应用网格 */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* 应用卡片 */
.app-card {
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.app-card:hover {
    box-shadow: 0 12px 32px rgba(30, 64, 175, 0.15);
}

.app-card-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.app-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.app-card-info {
    flex: 1;
    min-width: 0;
}

.app-card-name {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.app-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    flex-wrap: wrap;
}

.app-card-type {
    display: inline-flex;
    padding: 4px 10px;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
}

.app-card-time {
    color: #999;
}

.app-card-body {
    padding: 0 20px 16px;
}

.app-card-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.app-card-footer {
    padding: 16px 20px 0;
}

.app-card-btn {
    display: block;
    width: calc(100% + 40px);
    margin-left: -20px;
    padding: 12px 20px;
    background: transparent;
    color: #1e40af;
    border: none;
    border-top: 1px solid rgba(30, 64, 175, 0.2);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
}

.app-card-btn:hover {
    background: #1e40af;
    color: #fff;
}

@media (max-width: 768px) {
    .nav-page {
        flex-direction: column;
    }

    .side-nav {
        display: none;
    }

    .app-grid {
        grid-template-columns: 1fr;
    }
}