/* ============================================================
   Shanshan Zhong �?Academic Homepage
   Layout inspired by zorazrw.github.io
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    color: #333;
    line-height: 1.6;
    font-size: 15.5px;
}

a {
    color: #8b0000;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

img { max-width: 100%; height: auto; }

/* ============================================================
   Intro Section
   ============================================================ */
.intro-container {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 20px 0;
}

.profile-photo img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
}

.intro-text {
    flex: 1;
}

.intro-text h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
}

.intro-text .cn-name {
    font-size: 1.5rem;
    font-weight: 400;
    color: #666;
    margin-top: 2px;
}

.social-icons {
    margin-top: 10px;
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: #555;
    font-size: 1.6rem;
    transition: color 0.2s;
}

.social-icons a .ai-google-scholar {
    font-size: 1.9rem;
}
.social-icons a:hover {
    color: #8b0000;
    text-decoration: none;
}

.school-info {
    text-align: right;
}

.school-info h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
    color: #333;
}

.school-info p {
    margin: 5px 0 0;
    color: #666;
    font-size: 1.2rem;
}

/* ============================================================
   Navigation Banner
   ============================================================ */
.banner {
    border-top: 1px solid #8b0000;
    border-bottom: 1px solid #8b0000;
    padding: 4px 0;
    margin: 10px 0 30px;
}

.navbar {
    display: flex;
    gap: 0;
}

.navbar .nav-link {
    flex: 1;
    text-align: center;
    color: #333;
    font-weight: 500;
    font-size: 1.1em;
    padding: 2px 0;
    margin-right: 0;
    transition: color 0.2s;
}

.navbar .nav-link:hover {
    color: #8b0000;
    text-decoration: none;
}

/* ============================================================
   Sections
   ============================================================ */
.section {
    margin-bottom: 35px;
}

.section h2 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #8b0000;
}

.section p {
    margin: 8px 0;
    line-height: 1.7;
    text-align: justify;
}

/* Details / collapsible */
.section details {
    margin: 8px 0;
}

.section details summary {
    cursor: pointer;
    font-size: 0.95rem;
    color: #333;
    padding: 4px 0;
}

.section details summary:hover {
    color: #8b0000;
}

.section details ol {
    margin: 6px 0 6px 20px;
    padding: 0;
}

.section details ol li {
    margin-bottom: 4px;
    font-size: 0.92rem;
    line-height: 1.55;
}

/* ============================================================
   News
   ============================================================ */
#news ul, .section > ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

#news ul li, .section > ul > li {
    padding: 6px 0;
    font-size: 0.93rem;
    line-height: 1.55;
    border-bottom: 1px solid #8b0000;
}

.section > details > li {
    padding: 6px 0;
    font-size: 0.93rem;
    line-height: 1.55;
    border-bottom: 1px solid #8b0000;
    list-style: none;
}

/* ============================================================
   Publication Cards
   ============================================================ */
.pub-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.pub-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: box-shadow 0.3s ease;
    align-items: center;
}

.pub-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.pub-item img {
    width: 80px;
    height: auto;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

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

.pub-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin: 0 0 5px;
    line-height: 1.4;
    color: #333;
}

.pub-title a {
    color: #888;
    margin-left: 5px;
    font-size: 0.85rem;
}
.pub-title a:hover {
    color: #8b0000;
    text-decoration: none;
}

.pub-authors {
    font-size: 0.9rem;
    color: #555;
    margin: 0 0 4px;
    line-height: 1.45;
}

.pub-authors em {
    font-style: normal;
    text-decoration: underline;
    text-decoration-color: #8b0000;
    text-underline-offset: 2px;
}

.pub-venue {
    color: #8b0000;
    font-weight: 500;
    font-size: 0.9rem;
    margin: 0;
}

.pub-links {
    margin: 6px 0 0;
}

.pub-links a {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 500;
    padding: 2px 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #555;
    margin-right: 6px;
    transition: all 0.2s;
}

.pub-links a:hover {
    background: #C44E52;
    color: #fff;
    border-color: #C44E52;
    text-decoration: none;
}

.award {
    background: #8b0000;
    color: #fff;
    font-size: 0.72rem;
    font-style: normal;
    padding: 1px 8px;
    border-radius: 3px;
    margin-left: 6px;
    font-weight: 600;
}

/* ============================================================
   Footer
   ============================================================ */
footer {
    text-align: center;
    padding: 30px 0;
    color: #999;
    font-size: 0.85rem;
    margin-top: 20px;
}

/* ============================================================
   News Page
   ============================================================ */
.page-header { margin-bottom: 0.5rem; }
.page-header h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.2rem; }
.page-header .page-desc { font-size: 0.9rem; color: #666; }

.news-table { width: 100%; border-collapse: collapse; }
.news-table td, .news-table th { padding: 5px 0; vertical-align: top; border: none; }
.news-table th {
    white-space: nowrap; font-weight: 600; color: #8b0000;
    padding-right: 1.5rem; font-size: 0.9rem; width: 100px;
    text-align: right;
}
.news-table td { font-size: 0.95rem; line-height: 1.5; text-align: left; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
    .intro-container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    .school-info {
        text-align: center;
    }
    .social-icons {
        justify-content: center;
    }
    .pub-item {
        flex-direction: column;
    }
    .pub-item img {
        width: 120px;
    }
    .navbar .nav-link {
        margin-right: 30px;
    }
}