/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --text-color: #333333;
    --text-secondary: #666666;
    --link-color: #0066cc;
    --link-hover: #004499;
    --border-color: #e0e0e0;
    --font-main: 'JetBrains Mono', monospace;
    --font-title: 'Roboto', sans-serif;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --bg-secondary: #2a2a2a;
        --text-color: #e0e0e0;
        --text-secondary: #a0a0a0;
        --link-color: #4a9eff;
        --link-hover: #7bb8ff;
        --border-color: #333333;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Typography */
h1 {
    font-family: var(--font-title);
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 22px;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--link-hover);
}

strong {
    font-weight: 600;
}

em {
    font-style: italic;
}

/* Header */
header {
    margin-bottom: 40px;
}

header h1 {
    margin-bottom: 5px;
}

.chinese-name {
    font-family: var(--font-title);
    font-size: 16px;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-bottom: 10px;
    margin-top: -5px;
}

nav {
    font-family: var(--font-title);
    font-size: 14px;
    color: var(--text-color);
}

nav a {
    margin: 0 2px;
}

/* Profile Section */
.profile {
    margin-bottom: 40px;
}

.profile-content {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: 40px;
    align-items: start;
}

.profile-text {
    font-family: var(--font-title);
}

.profile-text p {
    margin-bottom: 15px;
}

.profile-image {
    text-align: center;
}

.profile-image img {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: 4px;
}

/* Logos */
.logos {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 25px;
    align-items: center;
}

.logos img {
    height: 40px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.logos img:hover {
    opacity: 1;
}

/* About Section */
.about {
    margin-bottom: 40px;
}

.intro {
    font-family: var(--font-title);
    font-size: 14px;
    line-height: 1.8;
    text-align: left;
}

/* Research Section */
.research {
    margin-bottom: 40px;
}

.research p {
    font-family: var(--font-title);
}

/* Publications Section */
.publications {
    margin-bottom: 40px;
}

.publication {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 25px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.publication:last-child {
    border-bottom: none;
}

.publication img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    display: block;
}

.pub-content {
    font-size: 14px;
    line-height: 1.8;
}

.pub-content a {
    font-weight: 500;
}

/* Publication Tags */
.pub-tags {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.pub-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-main);
}

.tag-cvpr {
    background-color: #e3f2fd;
    color: #1565c0;
}

.tag-iccv {
    background-color: #f3e5f5;
    color: #6a1b9a;
}

.tag-eccv {
    background-color: #fff3e0;
    color: #e65100;
}

.tag-aaai {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.tag-neurips {
    background-color: #fce4ec;
    color: #c2185b;
}

.tag-ijcv {
    background-color: #e0f2f1;
    color: #00695c;
}

.tag-arxiv {
    background-color: #f5f5f5;
    color: #424242;
}

.tag-submission {
    background-color: #fff9c4;
    color: #f57f17;
}

@media (prefers-color-scheme: dark) {
    .tag-cvpr {
        background-color: #1565c0;
        color: #e3f2fd;
    }
    
    .tag-iccv {
        background-color: #6a1b9a;
        color: #f3e5f5;
    }
    
    .tag-eccv {
        background-color: #e65100;
        color: #fff3e0;
    }
    
    .tag-aaai {
        background-color: #2e7d32;
        color: #e8f5e9;
    }
    
    .tag-neurips {
        background-color: #c2185b;
        color: #fce4ec;
    }
    
    .tag-ijcv {
        background-color: #00695c;
        color: #e0f2f1;
    }
    
    .tag-arxiv {
        background-color: #424242;
        color: #f5f5f5;
    }
    
    .tag-submission {
        background-color: #f57f17;
        color: #fff9c4;
    }
}

/* Teaching Section */
.teaching {
    margin-bottom: 40px;
}

.teaching-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 25px;
    align-items: center;
    padding: 20px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.teaching-item img {
    width: 100%;
    height: auto;
    opacity: 0.8;
}

.teaching-content h3 {
    font-family: var(--font-title);
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.teaching-content p {
    font-family: var(--font-main);
    font-size: 14px;
    margin-bottom: 5px;
    color: var(--text-secondary);
}

.teaching-period {
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0.8;
}

/* Footer */
footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 30px 15px;
    }

    h1 {
        font-size: 20px;
    }

    h2 {
        font-size: 16px;
        margin-top: 30px;
    }

    .profile-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .profile-image {
        order: -1;
    }

    .profile-image img {
        max-width: 150px;
    }

    .logos {
        gap: 10px;
    }

    .logos img {
        height: 30px;
    }

    .publication {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .publication img {
        max-width: 200px;
        margin: 0 auto;
    }

    .teaching-item {
        grid-template-columns: 1fr;
        gap: 15px;
        text-align: center;
    }

    .teaching-item img {
        max-width: 120px;
        margin: 0 auto;
    }

    nav {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 13px;
    }

    .container {
        padding: 20px 12px;
    }

    h1 {
        font-size: 18px;
    }

    h2 {
        font-size: 15px;
    }

    .profile-image img {
        max-width: 120px;
    }

    .logos img {
        height: 25px;
    }
}

/* Print Styles */
@media print {
    body {
        font-size: 12px;
    }

    .container {
        max-width: 100%;
    }

    a {
        color: var(--text-color);
        text-decoration: underline;
    }

    .publication {
        page-break-inside: avoid;
    }
}