.welcome-section {
    background: white;
    padding: 40px 0 30px;
    margin-bottom: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.welcome-section h1 {
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 2rem;
    color: var(--dark-color);
}

.welcome-section p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    color: #666;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

.card-menu {
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 25px;
    border: none;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card-menu:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.card-header {
    background: white;
    color: var(--dark-color);
    border-bottom: 1px solid #eee;
    border-radius: 8px 8px 0 0 !important;
    padding: 15px 20px;
    font-weight: 600;
}

.card-category {
    border-bottom: 1px solid #eee;
    padding: 15px 20px 0;
}

.card-category .nav-link {
    color: #666;
    padding: 8px 15px;
    margin-right: 5px;
    border-radius: 20px;
    transition: all 0.3s;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.card-category .nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.1);
}

.card-category .nav-link.active {
    color: white;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.card-body {
    padding: 20px;
}

.card .card-body a{
    margin-left: 0;
}

.list-group-item {
    border: none;
    padding: 12px 15px;
    color: var(--dark-color);
    transition: all 0.3s;
    border-bottom: 1px solid #f5f5f5 !important;
    display: flex;
    align-items: center;
    position: relative;
}

.list-group-item:before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    margin-right: 12px;
    flex-shrink: 0;
}

.list-group-item:hover {
    background-color: rgba(52, 152, 219, 0.05);
    color: var(--primary-color);
    padding-left: 20px;
}

.list-group-item:last-child {
    border-bottom: none !important;
    font-weight: 600;
    color: var(--primary-color);
    justify-content: flex-end;
    padding-right: 5px;
}

.list-group-item:last-child:before {
    content: "";
    display: none;
}

.sidebar .card {
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 25px;
    border: none;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.sidebar .card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.sidebar .card-header {
    background: white;
    color: var(--dark-color);
    border-bottom: 1px solid #eee;
    border-radius: 8px 8px 0 0 !important;
    padding: 15px 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.sidebar .card-header i {
    margin-right: 8px;
    color: var(--primary-color);
}

.card-link {
    display: inline-block;
    background-color: #f8f9fa;
    color: var(--dark-color);
    padding: 6px 12px;
    border-radius: 4px;
    margin: 3px;
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s;
    border: 1px solid #eee;
}

.card-link:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 特色区域样式 */
.feature-section {
    margin-bottom: 40px;
}

.feature-card {
    background: white;
    border-radius: 8px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s;
    height: 100%;
    border-top: 3px solid var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: #666;
    font-size: 0.9rem;
}

.badge-new {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--secondary-color);
    color: white;
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 10px;
}