/* about.css - 关于页面专用样式 */
.about-page {
    padding-top: 116px;
}

/* 大图标语区域 */
.hero-banner {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.banner-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.banner-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(52, 150, 224, 0.85) 0%, 
        rgba(0, 68, 148, 0.8) 50%, 
        rgba(0, 168, 232, 0.75) 100%);
}

.banner-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.banner-icon {
    margin-bottom: 30px;
}

.banner-icon .iconfont {
    font-size: 4rem;
    opacity: 0.9;
}

.banner-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 40px;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.banner-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
}

.stat-item .iconfont {
    font-size: 1.5rem;
    opacity: 0.9;
}

/* 十年历程介绍 */
.journey-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.journey-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.journey-section .section-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 40px;
}

.journey-section .section-header .iconfont {
    font-size: 2.5rem;
    color: #667eea;
}

.journey-section .section-header h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin: 0;
}

.journey-paragraph {
    margin-bottom: 30px;
}

.paragraph-icon .iconfont {
    font-size: 1.8rem;
    color: #667eea;
    margin-top: 5px;
}

.journey-paragraph p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin: 0;
    flex: 1;
}

.journey-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.feature-item .iconfont {
    font-size: 1.3rem;
    color: #667eea;
}

.feature-item span {
    font-weight: 600;
    color: #333;
}

.journey-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 500px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(102, 126, 234, 0.9));
    color: white;
    padding: 30px;
    text-align: center;
}

.image-overlay .iconfont {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}

/* 上届大会主席 */
.previous-chairs {
    padding: 100px 0;
    background: white;
}

.previous-chairs .section-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 50px;
    justify-content: center;
    flex-direction: column;
}

.previous-chairs .section-header .iconfont {
    font-size: 2.5rem;
    color: #667eea;
}

.previous-chairs .section-header h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin: 0;
}

.previous-chairs .section-header p {
    color: #666;
    font-size: 1.1rem;
}

.chairs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.chair-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 0px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    margin-top: 20px;
}

.chair-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.chair-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 5px solid #f0f0f0;
    position: relative;
}

.chair-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chair-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #667eea;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chair-badge .iconfont {
    font-size: 1.2rem;
}

.chair-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.chair-card .position,
.chair-card .company {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
    color: #667eea;
    font-weight: 600;
}

.chair-card .affiliation {
    color: #666;
    margin-bottom: 15px;
}

.chair-contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #888;
    font-size: 0.9rem;
}

/* 上届专委与策划人 */
.previous-committee {
    padding: 100px 0;
    background: #f8f9fa;
}

.previous-committee .section-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 50px;
    justify-content: center;
    flex-direction: column;
}

.previous-committee .section-header .iconfont {
    font-size: 2.5rem;
    color: #667eea;
}

.previous-committee .section-header h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin: 0;
}

.previous-committee .section-header p {
    color: #666;
    font-size: 1.1rem;
}

.committee-section {
    margin-bottom: 60px;
}

.committee-section:last-child {
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e9ecef;
}

.category-header .iconfont {
    font-size: 2rem;
    color: #667eea;
}

.category-header h3 {
    font-size: 1.5rem;
    color: #333;
    margin: 0;
}

/* Swiper样式 */
.committee-swiper {
    padding: 20px 0;
    width: 100%;
    box-shadow: none;
}

.swiper-slide {
    height: auto;
    transition: none;
    box-shadow: none;
    overflow: visible !important;
}

.swiper-slide:hover {
    box-shadow: none;
    transform: none;
}

.committee-card {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    height: 100%;
    text-align: center;
}

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

.member-image {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 3px solid #f8f9fa;
    margin: 0 auto;
}

.member-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-info {
    flex: 1;
    width: 100%;
}

.member-info h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #333;
    font-weight: 600;
}

.member-position,
.member-company,
.member-expertise {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    color: #666;
    font-size: 0.95rem;
    justify-content: center;
}

.member-position .iconfont {
    color: #667eea;
}

.member-company .iconfont {
    color: #28a745;
}

.member-expertise .iconfont {
    color: #ff6b6b;
}

.swiper-pagination {
    margin-top: 40px;
    position: relative;
    z-index: 10;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: #ccc;
    opacity: 1;
}

.swiper-pagination-bullet-active {
    background: #667eea;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .banner-title {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    .journey-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .chairs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .banner-stats {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        height: 400px;
    }
    
    .banner-title {
        font-size: 2.2rem;
    }
    
    .banner-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .chairs-grid {
        grid-template-columns: 1fr;
    }
    
    .journey-section .section-header,
    .previous-chairs .section-header,
    .previous-committee .section-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .chair-card,
    .committee-section {
        padding: 25px;
    }
    
    .member-image {
        width: 90px;
        height: 90px;
    }
    
    .member-info h4 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .journey-section,.previous-chairs,.previous-committee {
        padding: 50px 0;
    }
    .image-wrapper,.image-wrapper img {
        height: 268px;
    }
    .hero-banner {
        height: 300px;
    }
    
    .banner-title {
        font-size: 1.8rem;
    }
    
    .banner-icon .iconfont {
        font-size: 3rem;
    }
    
    .chair-card,
    .committee-section {
        padding: 20px;
    }
    
    .chairs-grid {
        gap: 20px;
    }
    
    .member-image {
        width: 80px;
        height: 80px;
    }
    .about-page {
        padding-top: 60px;
    }
    
    .committee-card {
        padding: 20px 15px;
    }
    
    .member-info h4 {
        font-size: 1.2rem;
    }
}