.hero-section {
    margin-bottom: 3rem;
}

.carousel-item {
    height: 600px;
    background-color: #343a40;
}

.carousel-item img {
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
}

.carousel-caption {
    background: rgba(0, 0, 0, 0.6);
    padding: 2rem;
    border-radius: 0.5rem;
    bottom: 30%;
}

.carousel-control-prev,
.carousel-control-next {
    width: 5%;
}

@media (max-width: 768px) {
    .carousel-item {
        height: 400px;
    }
    
    .carousel-caption {
        bottom: 20%;
    }
    
    .carousel-caption h2 {
        font-size: 1.5rem;
    }
    
    .carousel-caption p {
        font-size: 0.9rem;
    }
}
/* 主容器样式 */
.container {
    max-width: 1200px;
    padding: 20px;
}

/* 表单样式 */
.form-control:focus, .form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* 表格样式 */
.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

/* 卡片样式 */
.card {
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card-header {
    font-weight: 600;
    border-radius: 8px 8px 0 0 !important;
}

/* 侧边栏样式 */
#sidebar {
    min-height: 100vh;
    padding-top: 20px;
}

#sidebar .nav-link {
    border-radius: 4px;
    margin-bottom: 5px;
    padding: 10px 15px;
}

#sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.1);
}

#sidebar .nav-link.active {
    background-color: rgba(255,255,255,0.2);
    font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
}
/* 时间线样式 */
.timeline {
    position: relative;
    padding-left: 40px;
    list-style: none;
}

.timeline-item {
    position: relative;
    margin-bottom: 20px;
}

.timeline-marker {
    position: absolute;
    left: -20px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #007bff;
}

.timeline-content {
    padding: 10px 15px;
    background: #f8f9fa;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .timeline {
        padding-left: 20px;
    }
    .timeline-marker {
        left: -10px;
    }
}
/* 自定义样式 */
.login-bg {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102,126,234,0.8) 0%, rgba(118,75,162,0.8) 100%);
}

.login-bg .content {
    z-index: 1;
    text-align: center;
    padding: 2rem;
}

.card {
    margin-top: 4rem;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    .card {
        margin-top: 2rem;
        margin-bottom: 2rem;
    }
    
    .login-bg {
        display: none;
    }
}