:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-text: #7f8c8d;
    --background: #ffffff;
    --card-background: #ffffff;
    --border-color: #eee;
}

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

body {
    font-family: "Helvetica Neue", Helvetica, Arial, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #f6f6f6;
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    margin-top: 60px;
}

.sidebar {
    width: 240px;
    padding: 20px 15px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: fixed;
    top: 80px;
    left: calc(50% - 580px);
    height: calc(100vh - 100px);
    overflow-y: auto;
    z-index: 50;
    flex-shrink: 0;
}

.main-content-wrapper {
    flex: 1;
    margin-left: 300px;
}

.profile-card {
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    text-align: center;
    margin-bottom: 0;
    transition: none;
    position: static;
    top: auto;
}

.profile-card:hover {
    transform: none;
    box-shadow: none;
}

.avatar {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 15px;
    display: block;
    object-fit: cover;
    border: 1px solid #eee;
}

.name {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 3px;
    color: var(--primary-color);
    text-align: center;
}

.chinese-name {
    font-size: 14px;
    text-align: center;
    color: #999;
    margin-bottom: 8px;
}

.nickname {
    font-size: 13px;
    text-align: center;
    color: #999;
    margin-bottom: 10px;
}

.motto {
    font-style: italic;
    text-align: center;
    font-size: 13px;
    margin: 10px 0;
    color: #999;
    padding: 8px 0;
    border-top: none;
    border-bottom: none;
}

.gender {
    font-size: 11px;
    text-align: center;
    color: #999;
    margin-bottom: 8px;
}

.contact-section {
    margin-top: 10px;
}

.location-info {
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.location-info i {
    font-size: 14px;
    color: #555;
    width: 16px;
}

.contact-title {
    display: none;
}

.contact-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 0;
    margin: 0;
}

.contact-links a {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0;
    background-color: transparent;
    border-radius: 0;
    color: #666;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
    gap: 6px;
}

.contact-links a:hover {
    background-color: transparent;
    text-decoration: none;
    color: #3498db;
}

.contact-links a i,
.contact-links a img {
    width: 20px;
    height: 20px;
    margin-right: 8px;
    object-fit: contain;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-links a::before {
    content: "";
    display: none;
}

.main-content {
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
}

.nav-bar {
    display: none;
}

.nav-bar a {
    display: none;
}

.nav-bar a:hover, .nav-bar a.active {
    display: none;
}

.section {
    background-color: #fff;
    border-radius: 5px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.section-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
    text-align: left;
    position: relative;
}

.section-title::after {
    display: none;
}

.education-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: stretch;
}

.experience-item, .education-item {
    display: flex;
    gap: 0;
    padding: 0;
    background: transparent;
    border-radius: 0;
    transition: none;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.education-item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    background: #f9f9f9;
    padding: 20px 20px 40px 20px;
    border-radius: 8px;
    margin-bottom: 0;
    border-bottom: none;
    gap: 15px;
    flex: 1;
    min-width: 300px;
    height: 140px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
}

.experience-item:last-child, .education-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.experience-item:hover, .education-item:hover {
    background: transparent;
    box-shadow: none;
    transform: none;
}

.education-item:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    background: #f9f9f9;
    z-index: 10;
}

.experience-logo, .education-logo {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    display: none;
}

.education-logo {
    display: block;
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    align-self: flex-start;
}

.experience-content, .education-content {
    flex: 1;
    padding-left: 0;
}

.education-content {
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
    justify-content: flex-start;
}

.experience-title, .education-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin-bottom: 2px;
    line-height: 1.4;
}

.experience-org, .education-org {
    font-size: 16px;
    color: #666;
    font-weight: 500;
    margin-bottom: 2px;
    line-height: 1.3;
}

.experience-org a, .education-org a, .experience-desc a {
    color: #3498db;
    text-decoration: none;
    cursor: pointer;
    transition: color 0.3s ease;
    border-bottom: 1px solid transparent;
}

.experience-org a:hover, .education-org a:hover, .experience-desc a:hover {
    color: #2980b9;
    border-bottom: 1px solid #3498db;
}

.experience-date, .education-date {
    font-size: 15px;
    color: #888;
    margin-bottom: 0;
    display: block;
    line-height: 1.3;
}

.experience-desc, .education-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.4;
    margin-top: 4px;
    display: block;
}

.project-item {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    margin-bottom: 10px;
}

.project-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
}

.project-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin: 0;
}

.project-org {
    font-size: 16px;
    color: #555;
    font-weight: 500;
    margin: 0;
}

.project-date {
    font-size: 15px;
    color: #777;
    margin: 0;
    display: block;
}

.project-desc {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

.project-links {
    margin-top: 6px;
    margin-bottom: 0px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.project-link {
    color: #3498db;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    padding: 4px 0;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    display: inline-block;
}

.project-link:hover {
    color: #2980b9;
    border-bottom: 1px solid #3498db;
}

.project-link::before {
    content: '[';
    margin-right: 2px;
}

.project-link::after {
    content: ']';
    margin-left: 2px;
}

.paper-box {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: nowrap;
    border-bottom: none;
    padding: 0;
    margin-bottom: 0;
}

.paper-box .paper-box-image {
    justify-content: flex-start;
    display: none;
    width: 0;
    order: 0;
}

.paper-box .paper-box-image img {
    display: none;
}

.paper-box .paper-box-text {
    max-width: 100%;
    order: 0;
    padding-left: 0;
}

@media (min-width: 48em) {
    .paper-box .paper-box-image {
        display: none;
    }
    
    .paper-box .paper-box-text {
        padding-left: 0;
    }
}

.badge {
    display: none;
}

.publications-content {
    text-align: center;
    padding: 30px 10px;
    color: #777;
    font-size: 16px;
}

.top-nav-link {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    padding: 5px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.top-nav-link:hover, .top-nav-link.active {
    background-color: #3498db;
    color: white;
}

nav[style*="position: fixed"] > div {
    overflow: auto;
    -webkit-overflow-scrolling: touch; 
}

nav[style*="position: fixed"] > div::-webkit-scrollbar {
    display: none;
}

nav[style*="position: fixed"] > div {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

@media (max-width: 900px) {
    nav[style*="position: fixed"] > div {
        max-width: none;
        flex-wrap: nowrap;
        gap: 10px;
        padding: 0 10px;
    }
}

.page-title {
    position: fixed;
    top: 15px;
    left: 20px;
    font-size: 18px;
    font-weight: bold;
    color: var(--primary-color);
    z-index: 101;
}

.welcome-banner {
    background-color: #fff;
    border-radius: 5px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    text-align: center;
}

.welcome-banner h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.welcome-banner p {
    font-size: 16px;
    color: var(--light-text);
}

.section#about {
    background-color: #fff;
    border-radius: 5px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.section#about .section-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

.about-content {
    font-size: 16px;
    color: #555;
    line-height: 1.7;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 4px;
    min-height: 200px;
    border-left: 4px solid var(--secondary-color);
}

@media (max-width: 900px) {
    .page-title {
        display: none;
    }

    nav[style*="position: fixed"] > div {
        padding-left: 0 !important;
        justify-content: center !important;
    }
    
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        margin-bottom: 30px;
        position: relative;
        top: 0;
        left: 0;
        height: auto;
        margin-left: 0;
    }
    
    .main-content-wrapper {
        margin-left: 0;
    }

    .welcome-banner {
        order: -1;
    }

    .nav-bar {
        display: flex;
        gap: 15px;
        margin-bottom: 40px;
        padding-bottom: 20px;
        border-bottom: 1px solid #eee;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch; 
        scroll-behavior: smooth; 
    }

    .nav-bar::-webkit-scrollbar {
        display: none;
    }
    
    .nav-bar {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .nav-bar a {
        white-space: nowrap;
        flex-shrink: 0;
    }
}