/* ============================================
   光通启明 · 暗色主题（用于子页面）
   ============================================ */

.dark-page {
    background: #000;
    color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 暗色顶部导航 */
.site-header.dark {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    border-bottom: 1px solid rgba(255,170,0,0.15);
}

.site-header.dark .logo-mark {
    background: #ffaa00;
    color: #000;
}

.site-header.dark .logo-text {
    color: #ffaa00;
}

.site-nav.dark a {
    color: #fff;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    transition: all 0.3s;
    border-bottom: 1px solid transparent;
    padding-bottom: 0.3rem;
}

.site-nav.dark a:hover,
.site-nav.dark a.active {
    color: #ffaa00;
    border-bottom-color: #ffaa00;
}

/* 页面主区 */
.page-main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* 页面首屏 */
.page-hero {
    text-align: center;
    padding: 4rem 1rem 3rem;
    border-bottom: 1px solid rgba(255,170,0,0.15);
    margin-bottom: 3rem;
}

.page-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 400;
    color: #ffaa00;
    text-shadow: 0 0 20px rgba(255,170,0,0.5);
    letter-spacing: 0.5rem;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.5rem;
    color: #f0e6d0;
    font-weight: 300;
    letter-spacing: 0.2rem;
    margin-bottom: 0.5rem;
}

.page-desc {
    font-size: 1rem;
    color: #999;
    font-style: italic;
}

/* 三栏卡片 */
.page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.page-card {
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,170,0,0.2);
    border-radius: 24px;
    padding: 2rem 1.5rem;
    transition: all 0.3s ease;
}

.page-card:hover {
    border-color: #ffaa00;
    box-shadow: 0 0 30px rgba(255,170,0,0.25);
    transform: translateY(-5px);
}

.page-card h2 {
    font-size: 1.75rem;
    font-weight: 400;
    color: #ffaa00;
    margin-bottom: 0.5rem;
}

.card-sub {
    font-size: 0.95rem;
    color: #ccc;
    border-left: 2px solid #ffaa00;
    padding-left: 0.8rem;
    margin-bottom: 1.2rem;
}

.page-card p {
    color: #ddd;
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* 暗色按钮 */
.btn-dark {
    display: inline-block;
    padding: 0.6rem 1.8rem;
    border: 1px solid #ffaa00;
    background: transparent;
    color: #ffaa00;
    font-size: 0.95rem;
    text-decoration: none;
    letter-spacing: 0.15em;
    transition: 0.3s;
    border-radius: 40px;
    cursor: pointer;
}

.btn-dark:hover:not(.disabled) {
    background: #ffaa00;
    color: #000;
    box-shadow: 0 0 15px rgba(255,170,0,0.5);
}

.btn-dark.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: #666;
    color: #666;
}

/* 数据统计 */
.page-stats {
    text-align: center;
    padding: 2rem 0;
}

.live-stats.dark {
    display: inline-block;
    background: rgba(255,170,0,0.08);
    border: 1px solid #ffaa00;
    border-radius: 60px;
    padding: 1rem 2rem;
    font-size: 1rem;
    color: #f0e6d0;
}

.live-stats.dark span {
    color: #ffaa00;
    font-weight: 700;
    font-size: 1.2rem;
}

/* 暗色页脚 */
.site-footer.dark {
    text-align: center;
    padding: 2rem 1rem;
    color: #666;
    border-top: 1px solid rgba(255,170,0,0.1);
    font-size: 0.85rem;
}

.site-footer.dark a {
    color: #888;
    text-decoration: none;
}

.site-footer.dark a:hover {
    color: #ffaa00;
}

/* 响应式 */
@media (max-width: 768px) {
    .site-header.dark {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    .site-nav.dark {
        display: flex;
        flex-wrap: wrap;
        gap: 0.8rem;
        justify-content: center;
    }
    .site-nav.dark a {
        font-size: 0.85rem;
    }
    .page-hero {
        padding: 2rem 1rem;
    }
    .page-title {
        font-size: 2rem;
        letter-spacing: 0.2rem;
    }
}