/* 基础样式 */
:root {
    --primary-color: #0056b3; /* ICCV蓝色 */
    --secondary-color: #6c757d;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    padding-top: 56px; /* 为固定导航栏留出空间 */
}

/* 标题样式 */
.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.section-title:after {
    content: '';
    position: absolute;
    display: block;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                url('../images/background.jpg') no-repeat center center;
    background-size: cover;
    padding: 120px 0;
    color: white;
    text-align: center;
}

/* 卡片样式 */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 10px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 80px 0;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* 导航栏活动状态 */
.nav-link.active {
    font-weight: bold;
    color: var(--primary-color) !important;
}

/* 页脚链接悬停效果 */
footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: white !important;
    text-decoration: none;
}

/* 固定尺寸的图片容器 */
.speaker-img-container {
    width: 150px;
    height: 150px;
    margin: 1rem auto 0;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid #f0f0f0;
}

/* 图片样式调整 */
.speaker-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* 组织者图像容器 - 固定尺寸完美圆形 */
.organizer-img-container {
    width: 150px;
    height: 150px;
    margin: 1rem auto;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    border: 3px solid #f8f9fa; /* 浅色边框 */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 组织者图像 - 完全填充容器 */
.organizer-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
}

/* 悬停效果 */
.organizer-img-container:hover .organizer-img {
    transform: scale(1.05);
}

.text-justify {
    text-align: justify;
    text-align-last: left;
    hyphens: auto;
}


/* Competition Organizers 样式 */
.organizers-list {
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.organizers-list li {
    border-bottom: 1px solid #f8f9fa;
}

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

.organizers-list span {
    padding: 8px 0;
}


.organizers-scroll-container {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 15px;
    -webkit-overflow-scrolling: touch;
}
.organizers-scroll-row {
    display: inline-flex;
    flex-wrap: nowrap;
    gap: 15px;
    padding: 5px 5px 15px;
}
.organizer-scroll-item {
    flex: 0 0 auto;
    width: 180px;
}
.organizer-scroll-item .card {
    min-height: 120px;
}
/* Hide scrollbar but keep functionality */
.organizers-scroll-container::-webkit-scrollbar {
    height: 5px;
}
.organizers-scroll-container::-webkit-scrollbar-track {
    background: #f1f1f1;
}
.organizers-scroll-container::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}
.organizers-scroll-container::-webkit-scrollbar-thumb:hover {
    background: #555;
}