/* 深色模式下的基础样式 */
[data-theme="dark"] {
    --color-bg: #1a1a1a;
    --color-surface: #242424;
    --color-text: #e5e5e5;
    --color-text-muted: #c0c0c0;
    --color-primary: #6f42c1;
    --color-secondary: #00c9a7;
    --color-accent: #ff6b6b;
    --color-highlight: #ffc107;
    --gradient-primary: linear-gradient(135deg, hsl(260, 70%, 30%), hsl(270, 80%, 85%));
    --gradient-secondary: linear-gradient(135deg, var(--color-secondary), #4ade80);
    --card-shadow: 0 8px 32px rgba(111, 66, 193, 0.1);
}

/* 深色模式下的导航栏样式 */
[data-theme="dark"] .navbar {
    background: rgba(25, 25, 25, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(25, 25, 25, 0.95);
    backdrop-filter: blur(15px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .nav-links a {
    color: var(--color-secondary);
}

[data-theme="dark"] .nav-links a::after {
    background-color: var(--color-primary);
}

/* 深色模式下的主页横幅样式 */
[data-theme="dark"] .hero {
    background-image: 
        linear-gradient(
            to bottom right,
            rgba(25, 25, 25, 0.7),
            rgba(0, 201, 167, 0.7)
        ),
        url('img/background/herobg.jpg');
}

[data-theme="dark"] .hero h1 {
    background: linear-gradient(120deg, #ffffff, #e0e0e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
}

[data-theme="dark"] .hero p {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .hero .btn-primary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
}

/* 深色模式下的社团数据样式 */
[data-theme="dark"] .stats-card {
    background: var(--gradient-primary);
    color: white;
}

[data-theme="dark"] .stat-number {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

[data-theme="dark"] .stat-label {
    color: rgba(255, 255, 255, 0.85);
}

/* 深色模式下的社团介绍样式 */
[data-theme="dark"] .section {
    background-color: var(--color-bg);
}

[data-theme="dark"] .section::before {
    background-color: var(--color-bg);
}

[data-theme="dark"] .section::after {
    background: linear-gradient(to top, transparent, var(--color-bg));
}

/* 深色模式下的卡片样式 */
[data-theme="dark"] .card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .card h3 {
    color: var(--color-text);
}

[data-theme="dark"] .card p {
    color: var(--color-text-muted);
}

/* 深色模式下的其他组件样式 */
[data-theme="dark"] .tag {
    background: rgba(111, 66, 193, 0.1);
    color: var(--color-primary);
}

[data-theme="dark"] .tag:hover {
    background: var(--gradient-primary);
    color: white;
}

[data-theme="dark"] .gallery-item {
    box-shadow: var(--card-shadow);
}

[data-theme="dark"] .gallery-title {
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
}

[data-theme="dark"] .footer {
    background: var(--color-dark-bg);
    color: var(--color-light-text-on-dark);
}

[data-theme="dark"] .footer-section ul li a {
    color: var(--color-light-text-on-dark);
}

[data-theme="dark"] .footer-section ul li a:hover {
    color: var(--color-secondary);
}