/* 紧凑版 Special Sessions 样式 */
.session-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
    border: 1px solid #e1e5e9;
    transition: all 0.3s ease;
}

.session-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.session-header {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e9ecef;
}

.session-id {
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 5px;
    font-weight: 700;
}

.session-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin: 0;
    font-weight: 700;
    line-height: 1.4;
}

.session-content {
    padding: 20px;
}

/* Abstract折叠展开样式 */

.abstract-toggle {
    margin-bottom: 10px;
}

.abstract-toggle-btn {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.abstract-toggle-btn:hover {
    background-color: VAR(--light);
}

.abstract-toggle-btn .abstract-icon {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.abstract-toggle-btn.expanded .abstract-icon {
    transform: rotate(180deg);
}

.session-abstract {
    font-size: 0.95rem;
    line-height: 1.5;
    color: #495057;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid var(--primary);
}

.session-abstract strong {
    color: var(--dark);
    font-size: 0.9rem;
}

.organizers-section {
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.organizers-title {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.organizers-title i {
    color: var(--primary);
    font-size: 1rem;
}

.organizers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.organizer-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.organizer-card:hover {
    background: #e9ecef;
}

.organizer-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #2980b9);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    margin-right: 20px;
    flex-shrink: 0;
    overflow: hidden;
}

.organizer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.organizer-avatar i {
    color: var(--white);
    font-size: 2.5rem;
}

.organizer-info h4 {
    margin: 0;
    font-size: 0.95rem;
    color: #2c3e50;
    font-weight: 600;
    line-height: 1.3;
}

.organizer-info p {
    margin: 2px 0 0;
    color: #6c757d;
    font-size: 0.8rem;
    font-weight: 500;
}

.no-sessions {
    text-align: center;
    color: #6c757d;
    padding: 40px 20px;
}

.no-sessions i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: #bdc3c7;
}

.no-sessions h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.no-sessions p {
    font-size: 0.95rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-contain {
        padding: 20px 15px;
    }

    .page-title {
        font-size: 1.8rem;
        margin-bottom: 25px;
    }

    .session-header {
        padding: 12px 15px;
    }

    .session-title {
        font-size: 1.2rem;
    }

    .session-content {
        padding: 15px;
    }

    .session-abstract {
        padding: 12px;
        font-size: 0.9rem;
    }

    .organizers-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .organizer-card {
        padding: 8px;
    }

    .organizer-avatar {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.6rem;
    }

    .session-title {
        font-size: 1.1rem;
    }

    .organizers-title {
        font-size: 1rem;
    }
}

/* 文章信息部分样式 */
.papers-section {
    margin: 20px 0;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    overflow: hidden;
    background-color: white;
}

.papers-toggle {
    padding: 12px 16px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.papers-toggle-btn {
    background: none;
    border: none;
    color: #2c3e50;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    width: 100%;
    text-align: left;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.papers-toggle-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.papers-toggle-btn.expanded {
    background-color: rgba(52, 152, 219, 0.1);
}

.papers-toggle-text {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.papers-count {
    font-size: 13px;
    font-weight: normal;
    color: #7f8c8d;
    background-color: #e9ecef;
    padding: 2px 8px;
    border-radius: 12px;
}

.papers-icon {
    font-size: 14px;
    color: #3498db;
    transition: transform 0.3s ease;
}

.session-papers {
    padding: 20px;
}

.papers-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.paper-item {
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 15px;
    background-color: #fcfcfc;
    transition: all 0.2s ease;
}

.paper-item:hover {
    border-color: #3498db;
    background-color: #f8fafd;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.1);
}

.paper-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.paper-title {
    margin: 0;
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    line-height: 1.4;
}

.paper-meta {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.presentation-type {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
}

.presentation-type.oral {
    background-color: rgba(39, 174, 96, 0.1);
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.2);
}

.presentation-type.poster {
    background-color: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.paper-status {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
    text-transform: capitalize;
}

/* 论文状态颜色 */
.paper-item[data-status="accepted"] .paper-status {
    background-color: rgba(39, 174, 96, 0.1);
    color: #27ae60;
    border: 1px solid rgba(39, 174, 96, 0.2);
}

.paper-item[data-status="under_review"] .paper-status {
    background-color: rgba(241, 196, 15, 0.1);
    color: #f1c40f;
    border: 1px solid rgba(241, 196, 15, 0.2);
}

.paper-item[data-status="revision_required"] .paper-status {
    background-color: rgba(155, 89, 182, 0.1);
    color: #9b59b6;
    border: 1px solid rgba(155, 89, 182, 0.2);
}

.paper-item[data-status="rejected"] .paper-status {
    background-color: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.paper-item[data-status="submitted"] .paper-status {
    background-color: rgba(52, 152, 219, 0.1);
    color: #3498db;
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.paper-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #555;
    padding: 8px 0;
    border-top: 1px solid #f1f3f4;
    margin-top: 8px;
}

.paper-author i {
    color: #7f8c8d;
    font-size: 13px;
}

.no-papers {
    text-align: center;
    padding: 30px;
    color: #7f8c8d;
}

.no-papers i {
    font-size: 36px;
    margin-bottom: 10px;
    color: #bdc3c7;
    display: block;
}

.no-papers p {
    margin: 0;
    font-style: italic;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .paper-header {
        flex-direction: column;
        gap: 10px;
    }

    .paper-meta {
        width: 100%;
        justify-content: space-between;
    }

    .papers-toggle-btn {
        font-size: 14px;
        padding: 6px 10px;
    }
}