/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a237e;
    --secondary-color: #0d47a1;
    --accent-color: #2196f3;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header styles */
.top-bar {
    background-color: var(--primary-color);
    padding: 10px 0;
    color: var(--white);
}

.language-selector button {
    background: none;
    border: 1px solid var(--white);
    color: var(--white);
    padding: 5px 10px;
    margin-left: 10px;
    cursor: pointer;
    border-radius: 3px;
}

.main-nav {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.main-nav.scrolled {
    padding: 15px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
}

.main-nav .container {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    margin-left: auto;
    display: flex;
    gap: 15px;
    position: relative;
    z-index: 1;
    list-style: none;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    background: var(--light-gray);
    color: var(--primary-color);
}

.nav-links a.active {
    background: var(--primary-color);
    color: var(--white);
    z-index: 0;
}

.nav-links li {
    margin: 0;
    padding: 0;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, 
        rgba(26, 35, 126, 0.85), 
        rgba(13, 71, 161, 0.85)
    ),
    url('https://images.unsplash.com/photo-1562774053-701939374585?q=80&w=1986&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    padding: 180px 0;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* Add animated particles effect */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/particles.png');
    animation: animateParticles 20s linear infinite;
    opacity: 0.08;
}

/* Glass effect overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 4em;
    margin-bottom: 30px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.4);
    letter-spacing: 1px;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.4em;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.3s backwards;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.cta-button {
    display: inline-block;
    padding: 18px 40px;
    background: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.2em;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
    background: #1e88e5;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes animateParticles {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 100% 100%;
    }
}

/* Features section */
.features {
    padding: 100px 0;
    background: var(--white);
    position: relative;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.feature-item {
    padding: 40px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.feature-item:hover::before {
    width: 100%;
    opacity: 0.1;
}

.feature-item i {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.feature-item h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-item p {
    color: #666;
    line-height: 1.7;
}

/* Footer styles */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.social-links a {
    color: var(--white);
    margin-right: 15px;
    font-size: 1.5em;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive design */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2em;
    }
}

/* Page header styles */
.page-header {
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.9), rgba(13, 71, 161, 0.9));
    color: var(--white);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/particles.png');
    animation: animateParticles 20s linear infinite;
    opacity: 0.1;
}

.page-header h1 {
    font-size: 3em;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease-out;
}

.page-header p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.2em;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

/* About page styles */
.about-content {
    padding: 60px 0;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.mission-vision .hover-card {
    padding: 40px;
    height: 100%;
}

.mission-vision h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 2em;
}

.values-section {
    margin-bottom: 60px;
}

.values-section h2 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
    font-size: 2.2em;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.values-grid .hover-card {
    text-align: center;
    padding: 40px;
}

.values-grid i {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.values-grid h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5em;
}

.history-section {
    margin-bottom: 60px;
}

.history-section h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color);
    font-size: 2.2em;
}

.history-section .hover-card {
    padding: 40px;
    text-align: justify;
    line-height: 1.8;
}

.leadership-section h2 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
    font-size: 2.2em;
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.leadership-grid .hover-card {
    text-align: center;
    padding: 40px;
}

.leader-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid var(--primary-color);
    transition: all 0.3s ease;
}

.leadership-grid h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3em;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .mission-vision,
    .values-grid,
    .leadership-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mission-vision,
    .values-grid,
    .leadership-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        padding: 40px 0;
    }

    .mission-vision h2,
    .values-section h2,
    .history-section h2,
    .leadership-section h2 {
        font-size: 1.8em;
    }
}

/* Timeline styles */
.timeline {
    max-width: 800px;
    margin: 40px auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--primary-color);
}

.timeline-item {
    margin-bottom: 40px;
    position: relative;
    padding-left: 50%;
}

.timeline-item:nth-child(even) {
    padding-left: 0;
    padding-right: 50%;
}

.timeline-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.leadership {
    margin-top: 60px;
}

.leader-card {
    text-align: center;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 8px;
}

.leader-card img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin-bottom: 20px;
}

.leader-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* Academics page styles */
.academics-content {
    padding: 60px 0;
}

.programs-section {
    margin-bottom: 60px;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.program-card {
    background: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.program-card:hover {
    transform: translateY(-5px);
}

.program-icon {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.program-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.program-features {
    list-style: none;
    margin: 20px 0;
}

.program-features li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.program-features li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

.program-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 15px;
}

.program-link:hover {
    text-decoration: underline;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.resource-item {
    text-align: center;
    padding: 30px;
    background: var(--light-gray);
    border-radius: 8px;
}

.resource-item i {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .program-card {
        margin-bottom: 20px;
    }
}

/* Admission page styles */
.admission-content {
    padding: 60px 0;
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    margin: 40px 0;
    position: relative;
    flex-wrap: wrap;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    z-index: 1;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 20px;
    position: relative;
    z-index: 2;
    background: var(--white);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: bold;
}

.btn-apply {
    display: inline-block;
    padding: 10px 20px;
    background: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    margin-top: 15px;
    transition: background-color 0.3s;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.requirement-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.requirement-card ul {
    list-style: none;
    margin-top: 20px;
}

.requirement-card li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.requirement-card li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

.documents-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.document-item {
    text-align: center;
    padding: 20px;
}

.document-item i {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.financial-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.tuition-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.tuition-table th,
.tuition-table td {
    padding: 10px;
    border: 1px solid var(--light-gray);
    text-align: left;
}

.tuition-table th {
    background: var(--light-gray);
}

.scholarship-info ul {
    list-style: none;
    margin-top: 20px;
}

.scholarship-info li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.scholarship-info li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .process-timeline::before {
        display: none;
    }
    
    .process-step {
        margin-bottom: 30px;
    }
    
    .financial-info {
        grid-template-columns: 1fr;
    }
}

/* Research page styles */
.research-content {
    padding: 60px 0;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.area-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.area-card:hover {
    transform: translateY(-5px);
}

.area-icon {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.area-topics {
    list-style: none;
    margin: 20px 0;
}

.area-topics li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.area-topics li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

.area-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.labs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.lab-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.lab-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.lab-card h3, .lab-card p {
    padding: 20px;
}

.publications-list {
    margin: 30px 0;
}

.publication-item {
    background: var(--white);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.publication-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.authors {
    color: var(--text-color);
    font-style: italic;
    margin-bottom: 5px;
}

.journal {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.publication-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.project-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.project-status {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.9em;
}

.status-badge.ongoing {
    background: #e3f2fd;
    color: #1976d2;
}

.status-badge.planned {
    background: #f3e5f5;
    color: #7b1fa2;
}

.project-year {
    color: var(--text-color);
    font-size: 0.9em;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .areas-grid,
    .labs-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .lab-card img {
        height: 150px;
    }
}

/* Contact page styles */
.contact-content {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
    margin-bottom: 60px;
}

.info-items {
    display: grid;
    gap: 30px;
    margin-top: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-item i {
    font-size: 1.5em;
    color: var(--primary-color);
    margin-top: 5px;
}

.info-details h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1em;
}

.submit-btn {
    background: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background: var(--secondary-color);
}

.map-section {
    margin-bottom: 60px;
}

.map-container {
    margin-top: 30px;
    border-radius: 8px;
    overflow: hidden;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.department-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.department-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.department-card p {
    margin-bottom: 10px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .info-items {
        gap: 20px;
    }
    
    .departments-grid {
        grid-template-columns: 1fr;
    }
}

/* Language-specific content */
[data-lang] {
    display: none;
}

[data-lang].active {
    display: block;
}

/* For navigation, we want to keep the structure but hide inactive language */
.nav-links[data-lang] {
    display: flex;
}

/* Card hover effects */
.hover-card {
    background: var(--white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hover-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.hover-card:hover::before {
    width: 100%;
    opacity: 0.1;
}

/* Animation classes */
.fade-in-up {
    animation: fadeInUp 1s ease-out;
}

.fade-in {
    animation: fadeIn 1s ease-out;
}

.slide-in-left {
    animation: slideInLeft 1s ease-out;
}

.slide-in-right {
    animation: slideInRight 1s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Lab icons styles */
.lab-icon {
    text-align: center;
    padding: 30px 0;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.lab-icon i {
    font-size: 4em;
    margin-bottom: 20px;
}

.hover-card:hover .lab-icon i {
    transform: scale(1.1);
    color: var(--accent-color);
}

/* Logo guidelines */
.logo-guidelines {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.logo-colors {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.color-item {
    padding: 20px;
    border-radius: 8px;
    color: white;
    text-align: center;
}

.primary-blue { background-color: #1a237e; }
.eco-green { background-color: #4caf50; }

.logo {
    padding: 15px 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 45px;
    width: auto;
    transition: all 0.3s ease;
}

.logo img:hover {
    opacity: 0.9;
}

/* 深色背景下的 logo */
.main-nav.scrolled .logo img {
    filter: none;
}

/* 导航栏布局优化 */
.main-nav .container {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    margin-left: auto;
    display: flex;
    gap: 15px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .nav-links {
        gap: 10px;
    }
    
    .nav-links a {
        padding: 6px 12px;
        font-size: 14px;
    }
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text h1 {
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
}

.logo-text p {
    font-size: 14px;
    color: var(--text-color);
    margin: 0;
    opacity: 0.9;
}

/* 领导团队图片样式 */
.leader-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid var(--primary-color);
    transition: all 0.3s ease;
}

.hover-card:hover .leader-image {
    transform: scale(1.05);
    border-color: var(--accent-color);
}

/* 图标样式 */
.program-icon,
.area-icon {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.hover-card:hover .program-icon i,
.hover-card:hover .area-icon i {
    transform: scale(1.1);
    color: var(--accent-color);
}