/* Global Styles */
:root {
    /* Vintage Color Scheme */
    --primary-color: #7B6B5B;      /* 主要强调色 - 复古棕 */
    --primary-dark: #5A4E42;       /* 深棕色，用于悬停状态 */
    --secondary-color: #A65D57;    /* 次要强调色 - 暗红色 */
    --secondary-dark: #8B4E4A;     /* 深红色，用于悬停状态 */
    --accent-color: #8F9779;       /* 点缀色 - 橄榄绿 */
    
    /* 背景色系 */
    --background-color: #F5F2EB;   /* 古纸色背景 */
    --surface-color: #FFFCF5;      /* 米白色卡片背景 */
    --surface-color-light: #E8E4DB; /* 浅灰褐色，用于悬停状态 */
    
    /* 文字色系 */
    --text-primary: #2B2522;       /* 主要文字颜色 - 深褐色 */
    --text-secondary: #564E4A;     /* 次要文字颜色 - 中褐色 */
    --text-tertiary: #847D77;      /* 辅助文字颜色 - 浅褐色 */
    
    /* 边框和分割线 */
    --border-color: #D5CEC5;       /* 复古边框色 */
    
    /* 功能色 */
    --success-color: #739081;      /* 成功状态 - 复古绿 */
    --warning-color: #C4A484;      /* 警告状态 - 复古棕 */
    --error-color: #B47267;        /* 错误状态 - 复古红 */
    
    /* Layout Variables */
    --sidebar-width: 300px;
    --nav-height: 64px;
    --content-padding: 2rem;
    --section-spacing: 2rem;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    background-image: 
        linear-gradient(
            rgba(245, 242, 235, 0.8),
            rgba(245, 242, 235, 0.8)
        ),
        url('data:image/png;base64,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');
}

/* Container Layout */
.container {
    display: flex;
    min-height: 100vh;
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Content Navigation */
.content-nav {
    background-color: var(--surface-color);
    border-bottom: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
    padding: 0 var(--content-padding);
    height: var(--nav-height);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

.content-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--content-padding);
}

.content-nav .nav-links {
    display: flex;
    list-style: none;
    padding: 0 1rem;
    margin: 0;
    width: 100%;
    justify-content: space-between;
}

.language-switch {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-right: 1rem;
}

.language-switch:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.language-switch i {
    font-size: 1.1rem;
}

.content-nav .nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    white-space: nowrap;
    font-size: 0.9rem;
    font-family: 'Georgia', serif;
    letter-spacing: 0.5px;
}

.content-nav .nav-link:hover {
    color: var(--secondary-color);
}

.content-nav .nav-link.active {
    color: var(--primary-color);
    background-color: rgba(116, 178, 123, 0.1);
    border-bottom: 2px solid var(--primary-color);
}

.content-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* Sections Container */
.sections-container {
    flex: 1;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
    scroll-padding-top: var(--nav-height);
    position: relative;
    height: calc(100vh - var(--nav-height));
    max-width: 100%;
    padding: 0 1rem;
    box-sizing: border-box;
}

/* Sections */
.section {
    min-height: calc(100vh - var(--nav-height));
    padding: 2rem 3rem;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    flex-direction: column;
}

.section-content {
    flex: 1;
    background: var(--surface-color);
    border-radius: 24px;
    padding: 2.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(116, 178, 123, 0.1);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: relative;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    max-width: 100%;
    overflow: hidden;
    padding: 2rem 1.5rem;
}

.section-content h2 {
    position: relative;
    font-family: 'Georgia', serif;
    color: var(--primary-color);
    letter-spacing: 1px;
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
}

.section-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: repeating-linear-gradient(
        90deg,
        var(--border-color),
        var(--border-color) 6px,
        transparent 6px,
        transparent 12px
    );
}

/* Profile Sidebar */
.profile-sidebar {
    width: var(--sidebar-width);
    position: fixed;
    height: 100vh;
    background-color: var(--surface-color);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
    overflow-y: auto;
    padding: 1rem 2rem 0.5rem 2rem;
    border-right: 1px solid var(--border-color);
}

.profile-card, .info-section, .section-content {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(123, 107, 91, 0.1);
}

.profile-card{
    background-color: var(--surface-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.info-section{
    background-color: var(--surface-color);
    border-radius: 16px;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
}

.profile-header h1 {
    color: var(--text-primary);
}

.profile-header h2 {
    color: var(--primary-color);
}

/* Profile Image */
.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid var(--surface-color);
    padding: 4px;
    background-color: var(--surface-color);
    box-shadow: 0 4px 12px rgba(123, 107, 91, 0.2);
    margin: 0 auto 0rem;
    display: block;
    transition: all 0.3s ease;
    position: relative;
    left: -2%;
    transform: translateX(-3%);
}

.profile-image:hover {
    transform: scale(1.05);
    border-color: var(--accent-color);
    box-shadow: 0 12px 32px rgba(250, 207, 85, 0.3);
}

.profile-image::after {
    content: '';
    position: absolute;
    top: -12px;
    left: -12px;
    right: -12px;
    bottom: -12px;
    border: 1px solid var(--border-color);
    z-index: -1;
}

/* Content Block Styling */
.content-block {
    flex: 1;
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    overflow-y: auto;
}

.content-block:hover {
    transform: translateX(5px);
}

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

.project-card {
    background: var(--surface-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 100%;
    margin: 0;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(123, 107, 91, 0.15);
    border-color: var(--primary-color);
}

.project-header {
    margin-bottom: 1rem;
}

.project-header h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.project-date {
    color: var(--primary-color);
    font-size: 0.875rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    flex-grow: 1;
    line-height: 1.5;
    font-size: 0.9rem;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--primary-dark);
    background: var(--surface-color-light);
}

.details-btn {
    background-color: var(--primary-color);
    color: var(--surface-color);
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-family: 'Georgia', serif;
}

.details-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 5px;
}

.close-btn {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-btn:hover,
.close-btn:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.modal-body {
    padding: 20px 0;
}

.details-btn {
    background-color: #4a90e2;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    margin: 10px 0;
}

.details-btn:hover {
    background-color: #357abd;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .project-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {
    .project-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 1rem;
        padding: 0.75rem;
    }

    .project-card {
        padding: 1rem;
    }

    .modal-content {
        width: 95%;
        margin: 2vh auto;
    }
}

@media (max-width: 480px) {
    .project-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        padding: 0.5rem;
    }
}

/* Achievement Items */
.achievement-item {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.achievement-item:hover {
    transform: translateX(10px);
}

.achievement-item h3 {
    color: var(--text-primary);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    opacity: 0.8;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .content-nav .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 992px) {
    .content-nav .nav-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .profile-sidebar {
        position: relative;
        width: 100%;
        height: auto;
    }

    .main-content {
        margin-left: 0;
    }

    .content-nav .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .content-nav {
        height: auto;
        padding: 0.5rem;
    }

    .content-nav .nav-link {
        padding: 0.3rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    width: 100%;
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9)),
                url('images/hero-bg.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--surface-color);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 300;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Section Styles */
section {
    padding: 5rem 2rem;
}

section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    font-size: 2.5rem;
}

/* About Section */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.profile-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.profile-info ul {
    list-style: none;
    margin-bottom: 2rem;
}

/* Research Section */
.research-content {
    max-width: 1000px;
    margin: 0 auto;
}

.research-item {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.research-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.research-item ul {
    margin-left: 1.5rem;
}

/* Projects Section */
.project-card {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(123, 107, 91, 0.15);
    border-color: var(--primary-color);
}

.project-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.project-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--secondary-color);
    text-decoration: none;
}

/* Achievements Section */
.achievement-list {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.achievement-item {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.achievement-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Contact Section */
.contact {
    background-color: var(--background-color);
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-item {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.contact-item i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.contact-item a {
    color: var(--text-secondary);
    text-decoration: none;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--surface-color);
    text-align: center;
    padding: 1rem;
}

/* Markdown Content Styles */
.markdown-content {
    padding: 20px;
    line-height: 1.6;
}

.markdown-content h1 {
    font-size: 2em;
    margin-bottom: 1em;
    border-bottom: 2px solid #eee;
    padding-bottom: 0.3em;
}

.markdown-content h2 {
    font-size: 1.5em;
    margin: 1em 0;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.3em;
}

.markdown-content h3 {
    font-size: 1.25em;
    margin: 1em 0;
}

.markdown-content p {
    margin: 1em 0;
}

.markdown-content code {
    background-color: #f6f8fa;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: monospace;
}

.markdown-content pre {
    background-color: #f6f8fa;
    padding: 16px;
    border-radius: 6px;
    overflow: auto;
}

.markdown-content pre code {
    background-color: transparent;
    padding: 0;
}

.markdown-content ul, 
.markdown-content ol {
    padding-left: 2em;
    margin: 1em 0;
}

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

.markdown-content blockquote {
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
    margin: 1em 0;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.markdown-content table th,
.markdown-content table td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.markdown-content table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-content {
        flex-direction: column;
        text-align: center;
    }

    .nav-links {
        margin-top: 1rem;
    }

    .nav-links li {
        margin: 0 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }
}

/* Education Page Styles */
.top-section {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: nowrap;
}

.overall-block {
    flex: 2;
    min-width: 250px;
}

.transcripts {
    flex: 1;
    margin-bottom: 0.5;
    padding: 1rem 0;
    background: var(--surface-color);
    border-radius: 12px;
    min-width: 300px;
}

.english-proficiency {
    flex: 1;
    margin-bottom: 0;
    padding: 0rem;
    background: var(--surface-color);
    border-radius: 12px;
    min-width: 250px;
}

.compulsory-text {
    font-size: 0.8em;
    color: var(--text-secondary);
}

.cert-item {
    margin-bottom: 0rem;
    background: var(--surface-color-light);
    padding: 0.3rem;
    border-radius: 8px;
}

.cert-item:last-child {
    margin-bottom: 0;
}

.cert-title {
    display: block;
    font-weight: 600;
    color: var(--primary-color);
}

.cert-date {
    display: inline-block;
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.pdf-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pdf-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    background: var(--surface-color-light);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.pdf-link:hover {
    background: var(--primary-color);
    transform: translateX(5px);
}

.pdf-link i {
    color: var(--error-color);
}

.overall-stats {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.overall-stats li {
    padding: 0.5rem 1rem;
    background: var(--surface-color-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.academic-years {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 0rem;
}

.year-block {
    background: var(--surface-color);
    border-radius: 12px;
    padding: 1rem;
    padding-bottom: 0.5rem;
    height: 100%;
}

.year-block h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.year-block h3 i {
    font-size: 1.2rem;
}

.semester {
    background: var(--surface-color-light);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    margin-bottom: 0.2rem;
}

.semester:last-child {
    margin-bottom: 0;
}

.semester h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.semester p {
    color: var(--text-secondary);
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.semester span {
    color: var(--primary-color);
    font-weight: 600;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .top-section {
        flex-wrap: wrap;
    }
    
    .overall-block,
    .transcripts,
    .english-proficiency {
        flex: 1 1 300px;
    }
}

@media (max-width: 992px) {
    .academic-years {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .overall-stats {
        grid-template-columns: 1fr;
    }
}

/* About Section Styles */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-card {
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 1.5rem;
    transition: transform 0.3s ease;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.card-header i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.card-header h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin: 0;
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}

.info-list li i {
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

.story-section {
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.story-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.story-header i {
    color: var(--primary-color);
    font-size: 2rem;
}

.story-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 0;
}

.story-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.interests-section {
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 2rem;
}

.interests-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.interests-header i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.interests-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 0;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.interest-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: var(--surface-color);
    padding: 1rem;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.interest-item:hover {
    transform: translateX(5px);
}

.interest-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.interest-item span {
    color: var(--text-secondary);
}

/* Research Page Styles */
.research-card {
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: transform 0.3s ease;
}

.research-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(123, 107, 91, 0.15);
    border-color: var(--primary-color);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.card-header i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.card-header h3 {
    color: var(--text-primary);
    margin: 0;
}

.card-content p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.research-interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.interest-item {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    transition: transform 0.3s ease;
}

.interest-item:hover {
    transform: translateX(10px);
}

.interest-item i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.interest-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.interest-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.progress-timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.timeline-item {
    display: flex;
    gap: 1rem;
    padding-left: 1rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-color);
    opacity: 0.3;
}

.timeline-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.timeline-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.lab-content {
    color: var(--text-secondary);
}

.lab-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.activities-list {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.activity-item i {
    color: var(--primary-color);
}

.subtitle {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.date {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .research-interests-grid {
        grid-template-columns: 1fr;
    }
    
    .research-card {
        padding: 1.5rem;
    }
}

/* Enhanced Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: var(--surface-color);
    margin: 5vh auto;
    padding: 2rem;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    border-radius: 16px;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
}

.modal-body {
    padding: 1rem 0;
}

.modal-body h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.readme-content {
    font-size: 0.95em;
    line-height: 1.8;
    color: var(--text-secondary);
}

.readme-content h1,
.readme-content h2,
.readme-content h3 {
    color: var(--text-primary);
    margin: 1.5rem 0 1rem;
}

.readme-content p {
    margin-bottom: 1rem;
}

.readme-content ul,
.readme-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.readme-content code {
    background: var(--surface-color-light);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
}

.readme-content pre {
    background: var(--surface-color-light);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
}

.readme-content pre code {
    background-color: transparent;
    padding: 0;
}

.readme-content ul, 
.readme-content ol {
    padding-left: 2em;
    margin: 1em 0;
}

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

.readme-content blockquote {
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
    margin: 1em 0;
}

.readme-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.readme-content table th,
.readme-content table td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.readme-content table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

/* Enhanced Project Grid */
.project-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)) !important;
    padding: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .project-grid {
        grid-template-columns: 1fr !important;
        padding: 0.5rem;
    }

    .modal-content {
        width: 95%;
        margin: 2vh auto;
        padding: 1.5rem;
    }

    .close-btn {
        right: 1rem;
        top: 1rem;
    }
}

/* Markdown Content Styles */
.markdown-content {
    padding: 20px;
    line-height: 1.6;
}

.markdown-content h1 {
    font-size: 2em;
    margin-bottom: 1em;
    border-bottom: 2px solid #eee;
    padding-bottom: 0.3em;
}

.markdown-content h2 {
    font-size: 1.5em;
    margin: 1em 0;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.3em;
}

.markdown-content h3 {
    font-size: 1.25em;
    margin: 1em 0;
}

.markdown-content p {
    margin: 1em 0;
}

.markdown-content code {
    background-color: #f6f8fa;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: monospace;
}

.markdown-content pre {
    background-color: #f6f8fa;
    padding: 16px;
    border-radius: 6px;
    overflow: auto;
}

.markdown-content pre code {
    background-color: transparent;
    padding: 0;
}

.markdown-content ul, 
.markdown-content ol {
    padding-left: 2em;
    margin: 1em 0;
}

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

.markdown-content blockquote {
    padding: 0 1em;
    color: #6a737d;
    border-left: 0.25em solid #dfe2e5;
    margin: 1em 0;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.markdown-content table th,
.markdown-content table td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.markdown-content table tr:nth-child(2n) {
    background-color: #f6f8fa;
}

/* Career Section Styles */
.career-section {
    background: var(--surface-color-light);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
}

.career-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.career-header i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.career-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 0;
}

.career-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.career-card {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

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

.career-card i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.career-card h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.career-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Career Focus Grid Styles */
.career-focus-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.career-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.tag {
    background: var(--primary-color);
    color: var(--surface-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    white-space: nowrap;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .career-cards,
    .career-focus-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .career-cards,
    .career-focus-grid {
        grid-template-columns: 1fr;
    }
}

/* Add these styles to your existing CSS file */

.project-section {
    margin: 20px 0;
}

.project-section h5 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.project-section ul {
    list-style-type: disc;
    margin-left: 20px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.skill-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.skill-item i {
    font-size: 2em;
    color: #3498db;
    margin-bottom: 15px;
}

.skill-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.future-plans-list {
    list-style-type: none;
    padding: 0;
}

.future-plans-list li {
    margin: 15px 0;
    padding-left: 25px;
    position: relative;
}

.future-plans-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3498db;
}

/* Profile Card Styles */
.profile-info-list {
    margin-top: 1rem;
}

.profile-info-list .info-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.4rem;
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.profile-info-list .info-item:hover {
    background-color: var(--surface-color-light);
    transform: translateX(5px);
}

.profile-info-list .info-item i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
    font-size: 1rem;
}

.profile-info-list .info-item span,
.profile-info-list .info-item a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.2;
}

/* 添加大学链接样式 */
.university-link {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.university-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.profile-card h1 {
    color: var(--primary-color);
    margin: 0.8rem 0 0.3rem 0;
    font-size: 1.5rem;
}

.profile-card h3 {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 0.8rem;
}