@font-face {
    font-family: 'Lato';
    src: local('Lato Regular'), local('Lato-Regular'),
    url('/fonts/Lato-Regular.woff2') format('woff2'), /* Modern Browsers */
    url('/fonts/Lato-Regular.woff') format('woff'), /* Older Browsers */
    url('/fonts/Lato-Regular.ttf') format('truetype'); /* Safari, Android, iOS */
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'Lato';
    src: local('Lato Bold'), local('Lato-Bold'),
    url('/fonts/Lato-Bold.woff2') format('woff2'), /* Modern Browsers */
    url('/fonts/Lato-Bold.woff') format('woff'), /* Older Browsers */
    url('/fonts/Lato-Bold.ttf') format('truetype'); /* Safari, Android, iOS */
    font-weight: 700;
    font-style: normal;
}

body, button, input, textarea, select {
    font-family: 'Lato', sans-serif;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    position: relative; /* This makes sure your page is relative to the viewport */
}

.header-content {
    display: flex;
    justify-content: start;
    align-items: center;
    padding: 5px 20px;
    background-color: #fff; /* Adjust if you have a specific background color */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); /* Optional: adds a shadow for depth */
}

.logo {
    height: 45px; /* Adjust based on the actual size of your logo */
    margin-top: 5px;
}

.main-nav ul {
    align-items: left;
    padding-left: 0; /* Removes any padding on the left */
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.main-nav li {
    padding: 0 15px;
}

.main-nav a {
    text-decoration: none;
    color: #000; /* Text color is black */
    padding: 5px 10px;
    position: relative;
    transition: color 0.3s; /* Smooth transition for the color */
}

/* Pseudo-element for underline effect */
.main-nav a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background-color: transparent; /* Hide the underline by default */
    left: 0;
    bottom: -5px; /* Position the underline below the text */
    transition: background-color 0.3s; /* Smooth transition for the underline */
}

/* Hover effect for all links */
.main-nav a:hover {
    color: #9E2536; /* Text color changes to red */
}

/* Underline appears on hover */
.main-nav a:hover::after {
    background-color: #9E2536; /* Underline color is red */
}

/* Active link styles if needed */
.main-nav a.active {
    color: #9E2536; /* Black for active link */
}

.main-nav a.active::after {
    background-color: #9E2536; /* Black underline for active link */
}

.welcome-banner {
    background-color: #9E2536; /* Red color */
    text-align: center;
    padding: 40px 0;
    margin-bottom: 20px;
}

.welcome-banner h2 {
    font-size: 30px;
    color: white;
}

.overview {
    max-width: calc(4 * 200px + 3 * 20px); /* Or any other max-width or padding you prefer */
    margin: 0 auto; /* This centers the div if it has a width less than 100% */
    padding-top: 10px;
}

.overview h2 {
    font-size: 24px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
    margin-bottom: 20px;
}

.overview p {
    text-align: justify; /* This creates a clean, justified text alignment */
    margin-bottom: 10px; /* Adds space between paragraphs */
    line-height: 1.4; /* Increases readability */
}

.news-container {
    max-width: calc(4 * 200px + 3 * 20px); /* If .person-container has a max-width set */
    margin: 0 auto; /* This centers the container */
    padding-top: 10px;
    padding-bottom: 50px;
}

.news-container p {
    margin-bottom: -8px; /* Space between publication items */
}

.person-container {
    max-width: calc(4 * 200px + 3 * 20px); /* If .person-container has a max-width set */
    margin: 0 auto; /* This centers the container */
    margin-top: 50px; /* Optional: adds some space below */
}

.person-container h2 {
    margin-bottom: 10px; /* Optional: adds some space below */
}

.person-grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* Create four columns of equal width */
    gap: 20px;
    justify-content: center; /* Center the grid items */
    padding-top: 10px;
    padding-bottom: 20px;
    max-width: calc(4 * 200px + 3 * 20px); /* Adjust the width of each person card and the gap as needed */
    margin: 0 auto; /* Center the container */
}

.person-card {
    border: 1px solid #eaeaea;
    border-radius: 10px;
    transition: box-shadow 0.2s ease-in-out; /* Adjusted duration and timing function */
    overflow: hidden; /* 防止内容溢出 */
}

.person-card:hover {
    box-shadow: 0 0 20px 10px rgba(160, 157, 157, 0.3); /* Orange glow */
}

.person-image {
    width: 100%; /* 图片宽度充满卡片 */
    height: 150px; /* 固定图片高度，确保一致性 */
    object-fit: cover; /* 裁剪图片适应div大小 */
}

.person-card h3{
    padding: 5px;
    text-align: center;
}

.person-card p {
    padding: 1px;
    text-align: center;
}

.text-container {
    max-width: calc(4 * 200px + 3 * 20px); /* If .person-container has a max-width set */
    margin: 0 auto; /* This centers the container */
    padding-top: 10px;
    padding-bottom: 10px;
}

.text-link {
    color: #9E2536;         /* Sets the hyperlink text color to red */
    text-decoration: none; /* Removes the underline from hyperlinks */
}

.text-link:hover {
text-decoration: underline; /* Optionally add underline on hover */
}

.list {
    padding: 2px 0px;
}

.publications {
    max-width: calc(4 * 200px + 3 * 20px); /* If .person-container has a max-width set */
    margin: 0 auto; /* This centers the container */
    padding-top: 10px;
    padding-bottom: 10px;
}

.publication-item {
    /* Styles for each publication */
    position: relative;
    padding-left: 40px; /* Adjust padding to make space for bullet */
    margin-bottom: 30px; /* Space between publication items */
}

.publication-item p {
    margin-bottom: -10px; /* Space between publication items */
}

.publication-bullet::before {
    /* Create the custom bullet point */
    content: '';
    position: absolute;
    left: 3%;
    top: 10%;
    transform: translateY(-50%);
    width: 6px; /* Bullet width */
    height: 6px; /* Bullet height */
    background-color: #000; /* Bullet color */
    border-radius: 50%; /* Make it round */
}

.publication-link {
    /* Style for the arXiv link */
    color: #9E2536;
    text-decoration: none;
}

.tag_conference {
    display: inline-block;
    background-color: #ea5455;
    color: white;
    padding: 0.2em 0.6em;
    font-size: 0.875em;
    border-radius: 0.2em;
    font-weight: bold;
    margin-right: 0.5em;
}

.tag_book {
    display: inline-block;
    background-color: #ffd460;
    color: white;
    padding: 0.2em 0.6em;
    font-size: 0.875em;
    border-radius: 0.2em;
    font-weight: bold;
    margin-right: 0.5em;
}

.tag_journal {
    display: inline-block;
    background-color: #f07b3f;
    color: white;
    padding: 0.2em 0.6em;
    font-size: 0.875em;
    border-radius: 0.2em;
    font-weight: bold;
    margin-right: 0.5em;
}

.tag_others {
    display: inline-block;
    background-color: #2d4059;
    color: white;
    padding: 0.2em 0.6em;
    font-size: 0.875em;
    border-radius: 0.2em;
    font-weight: bold;
    margin-right: 0.5em;
}

footer {
    background-color: rgba(88, 89, 91, 0.95);
    color: #BBBCBD;
    text-align: center;
    padding: 8px 0;
    position: relative; /* Change from fixed to relative */
    bottom: 0;
    left: 0;
    width: 100%;
    box-shadow: 0 -5px 10px rgba(0, 0, 0, 0.1);
}

.footer-content p {
    margin: 5px 0;
    font-size: 12px; /* Smaller font size; adjust as needed */
}