/* ========================================
   学术交流平台 - 公用样式
   提取自各模块重复出现的组件样式
   ======================================== */

/* ===== 模块列表页 Banner ===== */
.paper-banner,
.news-banner,
.activity-banner,
.conf-banner,
.product-banner,
.cases-banner,
.about-banner {
    position: relative;
    height: 280px;
    margin-top: 60px;
    overflow: hidden;
}

.paper-banner > img,
.news-banner > img,
.activity-banner > img,
.conf-banner > img,
.product-banner > img,
.cases-banner > img,
.about-banner > img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.paper-banner-overlay,
.news-banner-overlay,
.activity-banner-overlay,
.conf-banner-overlay,
.product-banner-overlay,
.cases-banner-overlay,
.about-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(61, 52, 39, 0.85) 0%,
        rgba(91, 74, 63, 0.75) 50%,
        rgba(139, 115, 85, 0.5) 100%
    );
}

.paper-banner-content,
.news-banner-content,
.activity-banner-content,
.conf-banner-content,
.product-banner-content,
.cases-banner-content,
.about-banner-content {
    position: relative;
    z-index: 2;
    padding: 70px 0 0;
    text-align: center;
}

.paper-banner-content .banner-label,
.news-banner-content .banner-label,
.activity-banner-content .banner-label,
.conf-banner-content .banner-label,
.product-banner-content .banner-label,
.cases-banner-content .banner-label,
.about-banner-content .banner-label {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--color-primary-dark);
    background: rgba(230, 217, 184, 0.15);
    border: 1px solid rgba(230, 217, 184, 0.3);
    padding: 4px 20px;
    border-radius: 2px;
    margin-bottom: 16px;
}

.paper-banner-content h1,
.news-banner-content h1,
.activity-banner-content h1,
.conf-banner-content h1,
.product-banner-content h1,
.cases-banner-content h1,
.about-banner-content h1 {
    font-size: 36px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 6px;
    margin: 0 0 14px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.paper-banner-content p,
.news-banner-content p,
.activity-banner-content p,
.conf-banner-content p,
.product-banner-content p,
.cases-banner-content p,
.about-banner-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
    margin: 0;
}

/* ===== 筛选栏 ===== */
.filter-bar {
    padding: 0 35px;
}

.filter-group {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.filter-group:last-child {
    border-bottom: none;
}

.filter-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-brown);
    letter-spacing: 1px;
    white-space: nowrap;
    margin-right: 16px;
    min-width: 72px;
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filter-option {
    display: inline-block;
    font-size: 13px;
    padding: 4px 14px;
    border-radius: 2px;
    color: var(--color-text-light);
    transition: all 0.3s ease;
}

.filter-option:hover {
    color: var(--color-dark);
    background: var(--color-primary-light);
}

.filter-option.active {
    background: var(--color-primary);
    color: var(--color-dark);
    font-weight: 600;
}

.filter-group--input {
    gap: 0;
}

.filter-input-wrap {
    flex: 1;
    display: flex;
    align-items: center;
}

.filter-input {
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: 2px 0 0 2px;
    padding: 0 12px;
    font-size: 13px;
    color: var(--color-text);
    background: var(--color-white);
    outline: none;
    transition: border-color 0.3s ease;
    width: 270px;
}

.filter-input:focus {
    border-color: var(--color-primary-dark);
}

.filter-input::placeholder {
    color: var(--color-text-light);
}

.filter-search-btn {
    height: 32px;
    padding: 0 14px;
    border: 1px solid var(--color-border);
    border-left: none;
    border-radius: 0 2px 2px 0;
    background: var(--color-primary);
    color: var(--color-primary-dark);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-search-btn:hover {
    background: var(--color-gold);
    color: #fff;
}

/* ===== 分页 ===== */
.paper-pagination,
.news-pagination,
.activity-pagination,
.conf-pagination {
    text-align: center;
    margin-top: 30px;
}

.paper-pagination .pagination,
.news-pagination .pagination,
.activity-pagination .pagination,
.conf-pagination .pagination {
    margin: 0;
}

.paper-pagination .pagination > li > a,
.news-pagination .pagination > li > a,
.activity-pagination .pagination > li > a,
.conf-pagination .pagination > li > a {
    color: var(--color-brown);
    border-color: var(--color-border);
    font-size: 14px;
    padding: 8px 14px;
    margin: 0 2px;
    border-radius: 2px !important;
    transition: all 0.3s ease;
}

.paper-pagination .pagination > li > a:hover,
.news-pagination .pagination > li > a:hover,
.activity-pagination .pagination > li > a:hover,
.conf-pagination .pagination > li > a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary-dark);
    color: var(--color-dark);
}

.paper-pagination .pagination > li.active > a,
.paper-pagination .pagination > li.active > a:hover,
.news-pagination .pagination > li.active > a,
.news-pagination .pagination > li.active > a:hover,
.activity-pagination .pagination > li.active > a,
.activity-pagination .pagination > li.active > a:hover,
.conf-pagination .pagination > li.active > a,
.conf-pagination .pagination > li.active > a:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #FFFFFF;
}

.paper-pagination .pagination > li.disabled > a,
.news-pagination .pagination > li.disabled > a,
.activity-pagination .pagination > li.disabled > a,
.conf-pagination .pagination > li.disabled > a {
    color: var(--color-text-light);
    opacity: 0.5;
}

/* ===== 侧边栏通用 ===== */
.paper-sidebar-block,
.news-sidebar-block,
.activity-sidebar-block,
.conf-sidebar-block {
    background: var(--color-white);
    border-radius: 6px;
    border: 1px solid var(--color-border);
    margin-bottom: 20px;
    overflow: hidden;
}

.sidebar-block-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-primary-light);
}

.sidebar-block-header h4 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: 1px;
}

.sidebar-block-header h4 i {
    margin-right: 8px;
    color: var(--color-primary-dark);
}

/* 侧边栏统计网格 */
.sidebar-stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.sidebar-stat-item {
    text-align: center;
    padding: 18px 10px;
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-stat-item:nth-child(2n) {
    border-right: none;
}

.sidebar-stat-item:nth-child(n+3) {
    border-bottom: none;
}

.sidebar-stat-num {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.sidebar-stat-label {
    font-size: 12px;
    color: var(--color-text-light);
}

/* 侧边栏分类列表 */
.sidebar-category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-category-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    color: var(--color-text);
    font-size: 14px;
    border-bottom: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.sidebar-category-list li:last-child a {
    border-bottom: none;
}

.sidebar-category-list li a:hover {
    background: var(--color-primary-light);
    padding-left: 24px;
    color: var(--color-dark);
}

.sidebar-cat-name {
    display: flex;
    align-items: center;
}

.sidebar-cat-name::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    background: var(--color-primary-dark);
    border-radius: 50%;
    margin-right: 10px;
}

.sidebar-cat-count {
    font-size: 12px;
    color: var(--color-text-light);
    background: var(--color-primary-light);
    padding: 1px 8px;
    border-radius: 2px;
}

/* 侧边栏热门列表 */
.sidebar-hot-list {
    padding: 8px 0;
}

.sidebar-hot-item {
    display: flex;
    align-items: flex-start;
    padding: 10px 20px;
    gap: 12px;
    transition: all 0.3s ease;
}

.sidebar-hot-item:hover {
    background: var(--color-primary-light);
}

.sidebar-hot-rank {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    font-size: 12px;
    font-weight: 700;
    background: var(--color-border);
    color: var(--color-text-light);
    border-radius: 2px;
    flex-shrink: 0;
    margin-top: 2px;
}

.sidebar-hot-rank.rank-1 {
    background: var(--color-accent-red);
    color: #FFFFFF;
}

.sidebar-hot-rank.rank-2 {
    background: var(--color-primary-dark);
    color: var(--color-dark);
}

.sidebar-hot-rank.rank-3 {
    background: var(--color-brown-medium);
    color: #FFFFFF;
}

.sidebar-hot-info {
    flex: 1;
    min-width: 0;
}

.sidebar-hot-title {
    display: block;
    font-size: 13px;
    color: var(--color-text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 4px;
}

.sidebar-hot-item:hover .sidebar-hot-title {
    color: var(--color-dark);
}

.sidebar-hot-meta {
    font-size: 12px;
    color: var(--color-text-light);
}

.sidebar-hot-meta i {
    margin-right: 3px;
}

/* 侧边栏投稿入口 */
.sidebar-submit-block {
    border: none;
}

.submit-card {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, var(--color-dark), var(--color-brown));
    border-radius: 6px;
    color: var(--color-primary);
}

.submit-card > i {
    font-size: 36px;
    margin-bottom: 14px;
    opacity: 0.8;
}

.submit-card h4 {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    margin: 0 0 8px;
    color: var(--color-primary);
}

.submit-card p {
    font-size: 13px;
    color: rgba(230, 217, 184, 0.7);
    line-height: 1.6;
    margin: 0 0 18px;
}

.submit-btn {
    display: inline-block;
    padding: 8px 28px;
    background: var(--color-primary);
    color: var(--color-dark);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #FFFFFF;
    color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.submit-btn i {
    margin-left: 4px;
    transition: transform 0.3s ease;
}

.submit-btn:hover i {
    transform: translateX(4px);
}

/* 侧边栏信息列表 */
.sidebar-info-list {
    padding: 8px 0;
}

.sidebar-info-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
}

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

.sidebar-info-label {
    color: var(--color-text-light);
}

.sidebar-info-value {
    color: var(--color-text);
    font-weight: 500;
}

/* 侧边栏时间线 */
.sidebar-timeline {
    padding: 12px 20px;
}

.timeline-item {
    position: relative;
    padding: 0 0 16px 20px;
    border-left: 2px solid var(--color-border);
    margin-left: 6px;
}

.timeline-item:last-child {
    padding-bottom: 0;
    border-left-color: transparent;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 4px;
    width: 10px;
    height: 10px;
    background: var(--color-primary-dark);
    border-radius: 50%;
    border: 2px solid var(--color-white);
}

.timeline-date {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 2px;
}

.timeline-title {
    display: block;
    font-size: 13px;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 2px;
    transition: color 0.3s ease;
}

.timeline-title:hover {
    color: var(--color-primary-dark);
}

.timeline-location {
    font-size: 12px;
    color: var(--color-text-light);
}

.timeline-location i {
    margin-right: 3px;
}

/* 状态指示点 */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 4px;
    vertical-align: middle;
}

/* ===== 面包屑 ===== */
.news-breadcrumb,
.activity-breadcrumb,
.conf-breadcrumb,
.product-breadcrumb,
.cases-breadcrumb {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
}

.news-breadcrumb .breadcrumb,
.activity-breadcrumb .breadcrumb,
.conf-breadcrumb .breadcrumb,
.product-breadcrumb .breadcrumb,
.cases-breadcrumb .breadcrumb {
    background: none;
    margin: 0;
    padding: 0;
    font-size: 13px;
}

.news-breadcrumb .breadcrumb > li > a,
.activity-breadcrumb .breadcrumb > li > a,
.conf-breadcrumb .breadcrumb > li > a {
    color: var(--color-brown);
}

.news-breadcrumb .breadcrumb > li > a:hover,
.activity-breadcrumb .breadcrumb > li > a:hover,
.conf-breadcrumb .breadcrumb > li > a:hover {
    color: var(--color-primary-dark);
}

.product-breadcrumb .breadcrumb a,
.cases-breadcrumb .breadcrumb a {
    color: var(--color-text-light);
}

.product-breadcrumb .breadcrumb a:hover,
.cases-breadcrumb .breadcrumb a:hover {
    color: var(--color-primary-dark);
}

.news-breadcrumb .breadcrumb > .active,
.activity-breadcrumb .breadcrumb > .active,
.conf-breadcrumb .breadcrumb > .active {
    color: var(--color-text-light);
}

.product-breadcrumb .breadcrumb .active,
.cases-breadcrumb .breadcrumb .active {
    color: var(--color-dark);
}

.news-breadcrumb .breadcrumb > li + li::before,
.activity-breadcrumb .breadcrumb > li + li::before,
.conf-breadcrumb .breadcrumb > li + li::before,
.product-breadcrumb .breadcrumb > li + li::before,
.cases-breadcrumb .breadcrumb > li + li::before {
    content: "\203A";
    color: var(--color-border);
}

/* ===== 详情页信息网格 ===== */
.info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.info-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 16px;
    color: var(--color-primary-dark);
}

.info-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.info-label {
    font-size: 12px;
    color: var(--color-text-light);
    margin-bottom: 2px;
}

.info-value {
    font-size: 14px;
    color: var(--color-dark);
    font-weight: 500;
}

/* ===== 议程 ===== */
.agenda-day {
    margin-bottom: 30px;
}

.agenda-day:last-child {
    margin-bottom: 0;
}

.agenda-day-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0 0 16px;
    padding: 10px 16px;
    background: var(--color-primary-light);
    border-radius: 4px;
    border-left: 3px solid var(--color-primary-dark);
}

.agenda-day-title i {
    margin-right: 8px;
    color: var(--color-primary-dark);
}

.agenda-item {
    display: flex;
    gap: 20px;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.agenda-item--highlight {
    background: rgba(230, 217, 184, 0.1);
    border-radius: 4px;
    padding: 14px 16px;
}

.agenda-time {
    width: 120px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-dark);
    padding-top: 2px;
}

.agenda-body h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0 0 6px;
}

.agenda-body p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.7;
    margin: 0;
}

/* ===== 嘉宾卡片 ===== */
.guest-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-primary-light);
    border-radius: 6px;
    border: 1px solid var(--color-border);
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

.guest-card:hover {
    border-color: var(--color-primary-dark);
    box-shadow: 0 10px 30px rgba(61, 52, 39, 0.12);
}

.guest-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 2px solid var(--color-primary-dark);
}

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

.guest-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0 0 4px;
}

.guest-title {
    font-size: 13px;
    color: var(--color-brown);
    margin: 0 0 4px;
}

.guest-field {
    font-size: 12px;
    color: var(--color-text-light);
    margin: 0;
}

/* ===== Banner 响应式 ===== */
@media (max-width: 991px) {
    .paper-banner,
    .news-banner,
    .activity-banner,
    .conf-banner,
    .product-banner,
    .cases-banner,
    .about-banner {
        height: 220px;
    }

    .paper-banner-content h1,
    .news-banner-content h1,
    .activity-banner-content h1,
    .conf-banner-content h1,
    .product-banner-content h1,
    .cases-banner-content h1,
    .about-banner-content h1 {
        font-size: 28px;
    }

    .filter-bar {
        padding: 0 20px;
    }

    .filter-input {
        width: 100%;
    }

    .filter-group {
        border-bottom: 1px solid var(--color-border);
    }
}

@media (max-width: 767px) {
    .paper-banner,
    .news-banner,
    .activity-banner,
    .conf-banner,
    .product-banner,
    .cases-banner,
    .about-banner {
        height: 180px;
    }

    .paper-banner-content,
    .news-banner-content,
    .activity-banner-content,
    .conf-banner-content,
    .product-banner-content,
    .cases-banner-content,
    .about-banner-content {
        padding: 50px 0 0;
    }

    .paper-banner-content h1,
    .news-banner-content h1,
    .activity-banner-content h1,
    .conf-banner-content h1,
    .product-banner-content h1,
    .cases-banner-content h1,
    .about-banner-content h1 {
        font-size: 22px;
        letter-spacing: 3px;
    }

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-label {
        margin-bottom: 8px;
        margin-right: 0;
    }

    .filter-option {
        font-size: 12px;
        padding: 3px 10px;
    }

    .agenda-item {
        flex-direction: column;
        gap: 6px;
    }

    .agenda-time {
        width: auto;
    }

    .guest-card {
        flex-direction: column;
        text-align: center;
    }
}