.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0,20,60,0.85) 0%, rgba(22,93,255,0.7) 100%);
}
.about-banner .banner-content {
    position: relative;
    z-index: 2;
}
.about-banner .banner-title {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.3;
    max-width: 700px;
}
.about-banner .banner-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    line-height: 1.7;
}
.brand-wrap {
    display: flex;
    align-items: center;
    gap: 60px;
}
.brand-text {
    flex: 1;
}
.brand-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}
.brand-data {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}
.data-item {
    text-align: center;
}
.data-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}
.data-label {
    font-size: 14px;
    color: var(--text-secondary);
}
.brand-image {
    flex-shrink: 0;
    width: 50%;
    max-width: 600px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}
.brand-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.about-history-section {
    background: var(--secondary-color);
}
.history-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color) 0%, rgba(22,93,255,0.2) 100%);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    margin-bottom: 48px;
    width: 50%;
    padding-right: 40px;
}
.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 40px;
}
.timeline-dot {
    position: absolute;
    right: -8px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 4px solid #fff;
    box-shadow: 0 0 0 2px var(--primary-color);
    z-index: 2;
}
.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
    right: auto;
}
.timeline-content {
    background: #fff;
    padding: 24px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
}
.timeline-content:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(22,93,255,0.12);
}
.timeline-year {
    display: inline-block;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}
.timeline-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.timeline-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.team-card {
    padding: 32px 24px;
    text-align: center;
}
.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 4px solid rgba(22,93,255,0.1);
}
.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.team-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.team-position {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 12px;
}
.team-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}
.about-honor-section {
    background: var(--secondary-color);
}
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}
.honor-card {
    padding: 32px 24px;
    text-align: center;
}
.honor-icon {
    font-size: 48px;
    margin-bottom: 16px;
}
.honor-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.honor-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}
.partner-wrap {
    text-align: center;
}
.partner-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}
.partner-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.partner-item {
    background: #fff;
    height: 80px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-tertiary);
    transition: all 0.3s ease;
    filter: grayscale(100%);
}
.partner-item:hover {
    color: var(--primary-color);
    filter: grayscale(0);
    box-shadow: 0 4px 16px rgba(22,93,255,0.1);
    transform: translateY(-2px);
}
@media (max-width: 1024px) {
    .about-banner .banner-title {
        font-size: 36px;
    }
    .brand-wrap {
        flex-direction: column;
        gap: 40px;
    }
    .brand-image {
        width: 100%;
        max-width: 100%;
    }
    .brand-data {
        grid-template-columns: repeat(2, 1fr);
    }
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .timeline-line {
        left: 20px;
    }
    .timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        margin-left: 0 !important;
    }
    .timeline-dot {
        left: 12px !important;
        right: auto !important;
    }
}
@media (max-width: 768px) {
    .about-banner {
        min-height: 50vh;
    }
    .about-banner .banner-title {
        font-size: 28px;
    }
    .about-banner .banner-subtitle {
        font-size: 16px;
    }
    .brand-data {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .data-num {
        font-size: 28px;
    }
    .team-grid {
        grid-template-columns: 1fr;
    }
    .honor-grid {
        grid-template-columns: 1fr;
    }
    .partner-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .partner-item {
        height: 64px;
        font-size: 16px;
    }
}