/* 元宇宙页面系统 */

.page-header {
    margin-top: calc(var(--header-height) + 60px);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius-lg);
    background: radial-gradient(circle at 20% 30%, rgba(132, 92, 255, 0.25), transparent 60%),
                radial-gradient(circle at 70% 40%, rgba(26, 232, 255, 0.18), transparent 65%);
    opacity: 0.8;
    filter: blur(0);
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: var(--color-text-muted);
    font-size: 1rem;
    max-width: 760px;
    margin: 0 auto;
}

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    margin-top: var(--spacing-xs);
}

.breadcrumb a {
    color: var(--color-accent);
}

.page-content {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.page-content::before {
    content: '';
    position: absolute;
    inset: 30% 5% 10%;
    background: radial-gradient(circle, rgba(26, 232, 255, 0.18), transparent 55%);
    opacity: 0.4;
    pointer-events: none;
}

.page-content .container {
    position: relative;
    z-index: 1;
}

.content-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(132, 92, 255, 0.15);
    background: rgba(8, 11, 28, 0.82);
    backdrop-filter: blur(8px);
}

.content-section h2,
.content-section h3 {
    color: var(--color-text-light);
}

.content-section p {
    color: var(--color-text-muted);
}

.sidebar-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-lg);
}

.sidebar-nav {
    position: sticky;
    top: calc(var(--header-height) + 30px);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: rgba(7, 10, 24, 0.85);
    border: 1px solid rgba(132, 92, 255, 0.25);
}

.sidebar-nav h4 {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.08em;
}

.sidebar-nav ul {
    list-style: none;
    display: grid;
    gap: 6px;
}

.sidebar-nav a {
    color: var(--color-text-muted);
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    display: block;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--color-text-light);
    border-color: rgba(132, 92, 255, 0.35);
    background: rgba(132, 92, 255, 0.1);
}

/* 数据和卡片 */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.data-card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(26, 232, 255, 0.25);
    background: rgba(6, 8, 24, 0.8);
    text-align: center;
}

.data-number {
    font-size: 2.3rem;
    margin-bottom: 8px;
    color: var(--color-accent);
}

.data-label {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.highlight-card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--gradient-surface);
    border: 1px solid rgba(132, 92, 255, 0.3);
}

.highlight-card h3 {
    margin-bottom: var(--spacing-xs);
}

.highlight-card p {
    color: var(--color-text-muted);
}

.feature-list {
    display: grid;
    gap: var(--spacing-sm);
}

.feature-item {
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    background: rgba(8, 12, 32, 0.8);
    border: 1px solid rgba(132, 92, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-item span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(26, 232, 255, 0.9), rgba(132, 92, 255, 0.9));
    box-shadow: 0 0 12px rgba(26, 232, 255, 0.6);
}

.product-card {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: rgba(7, 10, 28, 0.85);
    border: 1px solid rgba(132, 92, 255, 0.2);
    transition: transform 0.35s ease;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 35px rgba(7, 11, 32, 0.5);
}

.product-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(26, 232, 255, 0.25);
}

.product-card h3 {
    margin-bottom: var(--spacing-xs);
}

.product-card p {
    color: var(--color-text-muted);
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: var(--spacing-sm);
}

.product-tags span {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(26, 232, 255, 0.15);
    border: 1px solid rgba(26, 232, 255, 0.25);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.case-card {
    border: 1px solid rgba(132, 92, 255, 0.2);
    background: rgba(6, 8, 22, 0.85);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.case-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.case-card-content {
    padding: var(--spacing-md);
}

.case-card h3 {
    margin-bottom: var(--spacing-xs);
}

.case-card p {
    color: var(--color-text-muted);
}

.case-meta {
    margin-top: var(--spacing-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.news-card {
    border: 1px solid rgba(26, 232, 255, 0.25);
    background: rgba(7, 10, 24, 0.9);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.news-date {
    color: var(--color-accent);
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.news-card h3 {
    margin-bottom: var(--spacing-xs);
}

.news-card p {
    color: var(--color-text-muted);
}

.table-responsive {
    overflow-x: auto;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(132, 92, 255, 0.25);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(6, 8, 24, 0.85);
}

table th {
    padding: 14px;
    color: var(--color-text-light);
    text-align: left;
    background: rgba(12, 16, 36, 0.95);
}

table td {
    padding: 12px 14px;
    border-top: 1px solid rgba(132, 92, 255, 0.12);
    color: var(--color-text-muted);
}

table tr:hover {
    background: rgba(12, 18, 40, 0.65);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar-layout {
        grid-template-columns: 1fr;
    }

    .sidebar-nav {
        position: static;
    }
}

@media (max-width: 600px) {
    .page-header {
        margin-top: calc(var(--header-height) + 20px);
    }

    .content-section {
        padding: var(--spacing-md);
    }

    .data-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}