/* 合作与赞助样式 */
.cooperation-section,
.sponsor-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.cooperation-section h2,
.sponsor-section h2 {
    font-size: 1.3rem;
    font-weight: bold;
    color: #1f2937;
    margin-bottom: 20px;
    border-left: 4px solid #DA3535;
    padding-left: 12px;

}

.cooperation-list,
.sponsor-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cooperation-list li,
.sponsor-list li {
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
    color: #4b5563;
    line-height: 1.5;
}

.cooperation-list li:last-child,
.sponsor-list li:last-child {
    border-bottom: none;
}

.cooperation-list li strong,
.sponsor-list li strong {
    color: #1f2937;
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cooperation-section,
    .sponsor-section {
        padding: 20px;
        margin-bottom: 20px;
    }

    .cooperation-section h2,
    .sponsor-section h2 {
        font-size: 1.2rem;
    }
}
/* 赞助商logo样式 */
.sponsor-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.sponsor-item:last-child {
    border-bottom: none;
}

.sponsor-item:hover {
    background-color: #f8fafc;
    border-radius: 8px;
    padding-left: 10px;
    padding-right: 10px;
}

.sponsor-logo {
    width: 60px;
    height: 60px;
    margin-right: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
}

.sponsor-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 5px;
}

.sponsor-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sponsor-info strong {
    color: #1f2937;
    font-weight: 600;
    font-size: 1.1rem;
}

.sponsor-amount {
    color: #6b7280;
    font-size: 0.9rem;
}

.sponsor-amount strong {
    color: #3b82f6;
    font-size: 0.9rem;
}

.sponsor-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cooperation-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cooperation-list li {
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
    color: #4b5563;
    line-height: 1.5;
}

.cooperation-list li:last-child {
    border-bottom: none;
}

.cooperation-list li strong {
    color: #1f2937;
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cooperation-section,
    .sponsor-section {
        padding: 20px;
        margin-bottom: 20px;
    }

    .cooperation-section h2,
    .sponsor-section h2 {
        font-size: 1.2rem;
    }

    .sponsor-item {
        padding: 12px 0;
    }

    .sponsor-logo {
        width: 50px;
        height: 50px;
        margin-right: 15px;
    }

    .sponsor-img {
        width: 30px;
        height: 30px;
    }

    .sponsor-info strong {
        font-size: 1rem;
    }

    .sponsor-amount {
        font-size: 0.85rem;
    }
}