/* 暗黑主题样式 */
:root {
    --primary-color: #00bc8c;
    --secondary-color: #444;
    --text-color: #e1e1e1;
    --background-color: #222;
    --card-background: #303030;
    --header-background: #1a1a1a;
    --footer-background: #111;
    --container-width: 1200px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background-color: var(--header-background) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,.5);
}

.navbar-brand {
    font-weight: bold;
    color: var(--primary-color) !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7) !important;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

.card {
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 2rem;
    background-color: var(--card-background);
    border-radius: 8px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.card-title {
    color: var(--primary-color);
}

.card-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.card-title a:hover {
    color: #00ffbf;
    text-decoration: underline;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #00a37a;
    border-color: #00a37a;
}

.pagination .page-link {
    background-color: var(--card-background);
    color: var(--primary-color);
    border-color: #444;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    color: #fff;
    background-color: #00a37a;
}

.main-content {
    background: var(--card-background);
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sidebar {
    background: var(--secondary-color);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sidebar .card-header {
    background-color: #2c2c2c;
    color: var(--primary-color);
    border-radius: 5px 5px 0 0;
    border-bottom: 1px solid #444;
}

.footer {
    background-color: var(--footer-background);
    color: #aaa;
    padding: 2rem 0;
    margin-top: 2rem;
    border-top: 1px solid #333;
}

.form-control {
    background-color: #444;
    color: var(--text-color);
    border: 1px solid #555;
}

.form-control:focus {
    background-color: #444;
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 188, 140, 0.25);
}

/* 验证码样式 */
.captcha-image {
    border: 1px solid #555;
    border-radius: 4px;
    height: 38px;
    width: 120px;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .sidebar {
        padding: 1rem;
        margin-top: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 0.75rem;
    }
    
    .sidebar {
        padding: 0.75rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}