/* Reset and base styles */
:root {
    --primary-color: #1a237e;
    --secondary-color: #0d1642;
    --accent-color: #4caf50;
    --accent-color-2: #ff9800;
    --accent-color-3: #2196f3;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0;
    transition: opacity 0.5s ease;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body.loaded {
    opacity: 1;
}

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

/* Header styles */
.top-bar {
    background-color: var(--primary-color);
    color: white;
    padding: 8px 0;
}

.contact-info {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 20px;
}

.contact-info span {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
}

.contact-info i {
    font-size: 16px;
}

/* Main navigation styles */
.main-nav {
    background-color: var(--white);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
}

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

.logo-text .university-name {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-text .university-slogan {
    font-size: 14px;
    color: #666;
    font-style: italic;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 5px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    transform: scaleX(1);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* Hero section */
.hero {
    position: relative;
    height: 80vh;
    min-height: 600px;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
                url('https://images.unsplash.com/photo-1562774053-701939374585?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 4em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

.hero p {
    font-size: 1.5em;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.3s forwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.6s forwards;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(26, 35, 126, 0.8), rgba(13, 22, 66, 0.8));
    z-index: 1;
}

/* Features section */
.features {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-header p {
    color: #666;
    font-size: 1.1em;
}

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

.feature-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 2em;
    color: white;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* About page styles */
.about-hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.about-sections {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.about-section {
    margin-bottom: 40px;
}

.about-section h2 {
    color: #1a237e;
    margin-bottom: 20px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    padding: 60px 20px;
    background-color: #f5f5f5;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5em;
    color: #1a237e;
    margin-bottom: 10px;
}

/* Academics page styles */
.academics-hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1523240795612-9a054b0db644?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.academic-intro {
    padding: 80px 0;
    background-color: var(--white);
}

.academic-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-top: 50px;
}

.academic-content p {
    margin-bottom: 20px;
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--text-color);
}

.academic-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.academic-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.academic-image:hover img {
    transform: scale(1.05);
}

.programs {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.program-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.program-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.program-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.program-icon i {
    font-size: 2em;
    color: white;
}

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

.program-card p {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.program-details {
    list-style: none;
    margin-bottom: 25px;
}

.program-details li {
    margin-bottom: 10px;
    color: var(--text-color);
    display: flex;
    align-items: center;
}

.program-details li i {
    color: var(--accent-color);
    margin-right: 10px;
    width: 20px;
}

.program-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.program-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.program-link:hover {
    color: var(--accent-color);
}

.program-link:hover i {
    transform: translateX(5px);
}

.faculty {
    padding: 80px 0;
    background-color: var(--white);
}

.faculty-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.faculty-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.faculty-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.faculty-image {
    height: 300px;
    overflow: hidden;
}

.faculty-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.faculty-card:hover .faculty-image img {
    transform: scale(1.1);
}

.faculty-info {
    padding: 30px;
    text-align: center;
}

.faculty-info h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.5em;
}

.faculty-info .position {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.faculty-info .expertise {
    color: var(--text-color);
    font-size: 0.9em;
}

.research {
    padding: 80px 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.research-card {
    text-align: center;
    padding: 30px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 10px;
    transition: var(--transition);
}

.research-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255,255,255,0.2);
}

.research-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-color-2));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-icon i {
    font-size: 1.8em;
    color: white;
}

.research-card h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.research-card p {
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

/* Footer styles */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.2em;
}

.footer-section p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

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

/* Responsive design */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3em;
    }
    
    .hero p {
        font-size: 1.2em;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 20px;
        flex-direction: column;
        gap: 15px;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5em;
    }

    .hero p {
        font-size: 1.1em;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .cta-buttons {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2em;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 30px 20px;
    }
}

/* Admissions page styles */
.admissions-hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.admission-process {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.admission-process h2 {
    text-align: center;
    color: #1a237e;
    margin-bottom: 40px;
}

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

.step {
    text-align: center;
    padding: 30px;
    background-color: #f5f5f5;
    border-radius: 10px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: #1a237e;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: bold;
}

.step h3 {
    color: #1a237e;
    margin-bottom: 15px;
}

.requirements {
    background-color: #f5f5f5;
    padding: 60px 20px;
}

.requirements h2 {
    text-align: center;
    color: #1a237e;
    margin-bottom: 40px;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.requirement-card {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.requirement-card i {
    font-size: 3em;
    color: #1a237e;
    margin-bottom: 20px;
}

.requirement-card h3 {
    color: #1a237e;
    margin-bottom: 20px;
}

.requirement-card ul {
    list-style: none;
    text-align: left;
}

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

.requirement-card ul li:before {
    content: "•";
    color: #1a237e;
    position: absolute;
    left: 0;
}

.apply-now {
    text-align: center;
    padding: 60px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.apply-now h2 {
    color: #1a237e;
    margin-bottom: 20px;
}

.apply-now p {
    margin-bottom: 30px;
}

/* Campus Life page styles */
.campus-hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.campus-activities,
.housing,
.facilities {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.campus-activities h2,
.housing h2,
.facilities h2 {
    text-align: center;
    color: #1a237e;
    margin-bottom: 40px;
}

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

.activity-card,
.housing-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.activity-card:hover,
.housing-card:hover {
    transform: translateY(-10px);
}

.activity-card img,
.housing-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.activity-card:hover img,
.housing-card:hover img {
    transform: scale(1.1);
}

.activity-card h3,
.housing-card h3 {
    padding: 20px 20px 10px;
    color: #1a237e;
}

.activity-card p,
.housing-card p {
    padding: 0 20px 20px;
}

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

.facility-card {
    background-color: #f5f5f5;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
}

.facility-card:hover {
    transform: translateY(-10px);
}

.facility-card i {
    font-size: 3em;
    color: #1a237e;
    margin-bottom: 20px;
}

.facility-card h3 {
    color: #1a237e;
    margin-bottom: 15px;
}

/* Contact page styles */
.contact-hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), 
                url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.contact-info-section {
    padding: 60px 20px;
    background-color: #f5f5f5;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.contact-card:hover {
    box-shadow: 0 8px 15px rgba(0,0,0,0.2);
    transform: translateY(-5px);
}

.contact-card i {
    font-size: 3em;
    color: #1a237e;
    margin-bottom: 20px;
}

.contact-card h3 {
    color: #1a237e;
    margin-bottom: 15px;
}

.contact-form-section {
    max-width: 800px;
    margin: 60px auto;
    padding: 0 20px;
}

.contact-form-section h2 {
    text-align: center;
    color: #1a237e;
    margin-bottom: 40px;
}

.contact-form {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(26, 35, 126, 0.2);
}

.submit-button {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.map-section {
    padding: 60px 20px;
    background-color: #f5f5f5;
}

.map-section h2 {
    text-align: center;
    color: #1a237e;
    margin-bottom: 40px;
}

.map-container {
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 新闻部分样式 */
.news-section {
    padding: 80px 0;
}

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

.news-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 20px;
}

.news-date {
    color: var(--primary-color);
    font-size: 0.9em;
    margin-bottom: 10px;
}

.news-card h3 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.3em;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 15px;
    transition: var(--transition);
}

.read-more i {
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* 统计数据部分样式 */
.stats-section {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item {
    position: relative;
}

.stat-number {
    font-size: 3em;
    font-weight: bold;
    margin-bottom: 10px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item p {
    font-size: 1.2em;
    color: rgba(255,255,255,0.9);
}

/* CTA部分样式 */
.cta-section {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)),
                url('https://images.unsplash.com/photo-1562774053-701939374585?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-section h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.cta-button {
    padding: 15px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

.cta-button.secondary {
    background: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.cta-button.secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3em;
    }
    
    .hero p {
        font-size: 1.2em;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        padding: 20px;
        flex-direction: column;
        gap: 15px;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5em;
    }

    .hero p {
        font-size: 1.1em;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .cta-buttons {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2em;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 30px 20px;
    }
}

/* 添加暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --text-color: #f5f5f5;
        --light-bg: #1a1a1a;
        --white: #2d2d2d;
    }

    body {
        background-color: #121212;
    }

    .main-nav {
        background-color: rgba(45, 45, 45, 0.95);
    }

    .card {
        background-color: #2d2d2d;
    }

    .back-to-top {
        background: var(--accent-color);
    }
}

main {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* About页面样式 */
.page-hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
                url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.page-hero .hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.page-hero h1 {
    font-size: 3.5em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

.page-hero p {
    font-size: 1.3em;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.3s forwards;
}

.about-intro {
    padding: 80px 0;
    background-color: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content h2 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin-bottom: 30px;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1em;
    line-height: 1.8;
}

.about-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.mission-vision {
    padding: 80px 0;
    background-color: var(--light-bg);
}

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

.mission-card,
.vision-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.mission-card:hover,
.vision-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon i {
    font-size: 2em;
    color: white;
}

.mission-card h3,
.vision-card h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8em;
}

.leadership {
    padding: 80px 0;
    background-color: var(--white);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.leader-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.leader-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.leader-image {
    height: 300px;
    overflow: hidden;
}

.leader-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.leader-card:hover .leader-image img {
    transform: scale(1.1);
}

.leader-info {
    padding: 30px;
    text-align: center;
}

.leader-info h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.5em;
}

.leader-info .position {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.leader-info .bio {
    color: var(--text-color);
    line-height: 1.6;
}

.achievements {
    padding: 80px 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.achievement-card {
    text-align: center;
    padding: 30px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 10px;
    transition: var(--transition);
}

.achievement-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255,255,255,0.2);
}

.achievement-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-color-2));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.achievement-icon i {
    font-size: 1.8em;
    color: white;
}

.achievement-card h3 {
    font-size: 2.5em;
    margin-bottom: 10px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-color-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.achievement-card p {
    color: rgba(255,255,255,0.9);
    font-size: 1.1em;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .page-hero h1 {
        font-size: 3em;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 2.5em;
    }
    
    .page-hero p {
        font-size: 1.1em;
    }
    
    .mission-vision-grid,
    .leadership-grid,
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-hero h1 {
        font-size: 2em;
    }
    
    .about-content h2 {
        font-size: 2em;
    }
    
    .leader-image {
        height: 250px;
    }
}

/* Admissions页面样式 */
.admission-intro {
    padding: 80px 0;
    background-color: var(--white);
}

.admission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-top: 50px;
}

.admission-content p {
    margin-bottom: 20px;
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--text-color);
}

.admission-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.admission-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.admission-image:hover img {
    transform: scale(1.05);
}

.requirements {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.requirement-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.requirement-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.requirement-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.requirement-icon i {
    font-size: 2em;
    color: white;
}

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

.requirement-card p {
    color: var(--text-color);
    line-height: 1.6;
}

.application-process {
    padding: 80px 0;
    background-color: var(--white);
}

.process-timeline {
    max-width: 800px;
    margin: 50px auto 0;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50px;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
}

.process-step {
    display: flex;
    margin-bottom: 50px;
    position: relative;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5em;
    font-weight: bold;
    margin-right: 30px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.step-content {
    flex-grow: 1;
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.step-content p {
    color: var(--text-color);
    line-height: 1.6;
}

.scholarships {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.scholarships-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.scholarship-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.scholarship-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.scholarship-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scholarship-icon i {
    font-size: 2em;
    color: white;
}

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

.scholarship-card p {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.scholarship-details {
    list-style: none;
    text-align: left;
    padding: 0 20px;
}

.scholarship-details li {
    margin-bottom: 10px;
    color: var(--text-color);
    position: relative;
    padding-left: 25px;
}

.scholarship-details li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.important-dates {
    padding: 80px 0;
    background-color: var(--white);
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.date-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid var(--primary-color);
}

.date-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.date-month {
    color: var(--accent-color);
    font-size: 1.2em;
    font-weight: 500;
    margin-bottom: 5px;
}

.date-day {
    color: var(--primary-color);
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 15px;
}

.date-card h3 {
    color: var(--text-color);
    font-size: 1.1em;
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .admission-grid {
        grid-template-columns: 1fr;
    }
    
    .admission-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .process-timeline::before {
        left: 25px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.2em;
        margin-right: 20px;
    }
    
    .step-content {
        padding: 20px;
    }
    
    .requirements-grid,
    .scholarships-grid,
    .dates-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .admission-content h2 {
        font-size: 2em;
    }
    
    .process-step {
        flex-direction: column;
    }
    
    .step-number {
        margin-bottom: 20px;
    }
    
    .process-timeline::before {
        left: 20px;
    }
}