/* 成果页 - 卡片网格布局 */

.pub-section {
    display: block;
    margin-bottom: 20px;
}

.pub-section.section-empty {
    display: none;
}

.pub-section h3 {
    margin-bottom: 12px;
}

/* 论文卡片网格 */
.pub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}

/* 论文圆角矩形卡片 — 纯文字，无封面图 */
.pub-paper-card {
    --pub-card-radius: 16px;
    --pub-card-bg: #f6f4f5;
    --pub-card-border: #ebe7e9;
    --pub-badge-h: 28px;
    --pub-card-pad: 12px;
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    height: auto;
    padding: var(--pub-card-pad);
    padding-top: calc(var(--pub-badge-h) + var(--pub-card-pad) + 6px);
    box-sizing: border-box;
    background: var(--pub-card-bg);
    border: 1px solid var(--pub-card-border);
    border-radius: var(--pub-card-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.pub-paper-card:hover {
    box-shadow: 0 3px 12px rgba(155, 13, 49, 0.1);
    --pub-card-border: rgba(155, 13, 49, 0.12);
    transform: translateY(-1px);
}

.pub-paper-footer {
    margin-top: auto;
    padding-top: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pub-badge-wrap {
    position: absolute;
    top: -1px;
    left: -1px;
    z-index: 1;
    display: inline-flex;
    align-items: stretch;
    max-width: calc(100% - 38px);
    height: calc(var(--pub-badge-h) + 1px);
    box-sizing: border-box;
    border-radius: var(--pub-card-radius) 0 8px 0;
    overflow: hidden;
}

.pub-paper-card .pub-badge {
    display: inline-flex;
    align-items: center;
    flex: 0 1 auto;
    min-width: 0;
    max-width: 100%;
    height: 100%;
    padding: 0 10px 0 11px;
    box-sizing: border-box;
    background: #9b0d31;
    color: #fff;
    font-size: 0.72em;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pub-paper-card .pub-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 24px;
    height: 100%;
    padding: 0 8px;
    box-sizing: border-box;
    background: var(--pub-card-bg);
    color: #9b0d31;
    font-size: 0.72em;
    font-weight: 600;
    line-height: 1;
    border: 1px solid var(--pub-card-border);
    border-left: none;
    border-radius: 0 0 8px 0;
    transition: border-color 0.25s ease;
}

.pub-paper-card .pub-title {
    margin: 0 0 4px;
    font-size: 0.92em;
    font-weight: 600;
    line-height: 1.4;
    color: #1f1f1f;
    word-break: break-word;
    min-width: 0;
    position: relative;
    z-index: 0;
}

.pub-paper-card .pub-title-link {
    color: inherit;
    text-decoration: none;
}

.pub-paper-card .pub-title-link:hover {
    color: #9b0d31;
}

.pub-paper-card .pub-authors {
    margin: 0 0 2px;
    font-size: 0.85em;
    font-weight: 400;
    color: #333333;
    line-height: 1.4;
    word-break: break-word;
    min-width: 0;
}

.pub-paper-card .pub-authors:empty,
.pub-paper-card .pub-venue:empty {
    display: none;
}

.pub-paper-footer:not(:has(.pub-venue:not(:empty))) {
    padding-top: 0;
    margin-top: 0;
}

.pub-paper-card .pub-venue {
    margin: 0;
    font-size: 0.85em;
    font-weight: 500;
    color: #9b0d31;
    line-height: 1.4;
    word-break: break-word;
    min-width: 0;
}

.pub-card-actions {
    position: absolute;
    top: 8px;
    right: var(--pub-card-pad);
    z-index: 2;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    height: 22px;
    gap: 8px;
}

.pub-card-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    color: #9b0d31;
    font-size: 0.85em;
    text-decoration: none;
    line-height: 1;
    opacity: 0.85;
    transition: opacity 0.2s ease;
}

.pub-card-actions a:hover {
    opacity: 1;
}

.pub-paper-card.hidden,
.pub-video-card.hidden {
    display: none !important;
}

/* 视频网格 */
.pub-video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.pub-video-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.25s ease;
    text-decoration: none;
    display: block;
}

.pub-video-card:hover {
    transform: scale(1.005);
}

.pub-video-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.pub-video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.65);
    padding: 8px 10px;
}

.pub-video-overlay h4 {
    margin: 0;
    color: #fff;
    font-size: 0.88em;
    text-align: center;
    font-weight: 500;
}

.pub-video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    background: rgba(155, 13, 49, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2em;
    z-index: 2;
    transition: background 0.2s ease;
}

.pub-video-card:hover .pub-video-play {
    background: rgba(155, 13, 49, 1);
}

.pub-disclaimer {
    margin-top: 24px;
    font-size: 0.85em;
    color: #999;
    line-height: 1.6;
}

/* 统计与标签 - 沿用原有样式微调 */
.stats-overview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
    position: relative;
    transform: translateY(3px);
    opacity: 0;
    animation: slideUp 0.5s forwards;
}

.stat-card {
    flex: 1 1 160px;
    min-width: 0;
    padding: 10px;
    background: rgba(155, 13, 49, 0.1);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 1px solid #f0f0f0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.stat-number {
    font-size: 1.1em;
    font-weight: bold;
    color: #9b0d31;
}

.stat-label {
    color: #9b0d31;
    font-size: 0.9em;
}

.stat-card.active-filter {
    background: #9b0d31;
}

.stat-card.active-filter .stat-number,
.stat-card.active-filter .stat-label {
    color: #fff;
}

.tag-overview {
    margin: 10px 0 16px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    border: 1px solid #f0f0f0;
    animation: slideUp 0.5s forwards;
}

.tag-title {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.95em;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.95em;
    align-content: flex-start;
}

.tag-item {
    position: relative;
    flex: 0 0 auto;
    padding: 6px 38px 6px 12px;
    background: rgba(155, 13, 49, 0.1);
    color: #9b0d31;
    border-radius: 8px;
    font-size: 0.9em;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.tag-count {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: #9b0d31;
    color: white;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.8em;
}

.tag-item.active-filter {
    background: #9b0d31;
    color: white;
}

.tag-item.active-filter .tag-count {
    background: white;
    color: #9b0d31;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@media screen and (max-width: 900px) {
    .pub-paper-card {
        --pub-card-radius: 14px;
    }

    .pub-video-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 600px) {
    .pub-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 10px;
    }

    .pub-video-grid {
        grid-template-columns: 1fr;
    }

    .pub-paper-card {
        --pub-card-radius: 12px;
        --pub-card-pad: 10px;
        padding: var(--pub-card-pad);
        padding-top: calc(var(--pub-badge-h) + var(--pub-card-pad) + 6px);
    }

    .pub-paper-card .pub-title {
        font-size: 0.88em;
    }

    .pub-paper-card .pub-authors,
    .pub-paper-card .pub-venue {
        font-size: 0.82em;
    }
}

#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    background-color: #9b0d31;
    color: white;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    z-index: 99;
    opacity: 0.85;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

#back-to-top:hover {
    background-color: #7b0925;
    opacity: 1;
    transform: translateY(-1px);
}

html {
    scroll-behavior: smooth;
}