@charset "UTF-8";
* {
  box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background-color: #fdfdfd;
  margin: 0;
  padding: 0; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: #2c3e50; }

h1 {
  font-size: 2.5em; }

h2 {
  font-size: 2em; }

h3 {
  font-size: 1.5em; }

h4 {
  font-size: 1.25em; }

p {
  margin-bottom: 1em; }

a {
  color: #3498db;
  text-decoration: none;
  transition: color 0.3s ease; }
  a:hover {
    color: #2980b9;
    text-decoration: underline; }

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

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

.text-left {
  text-align: left; }

.text-right {
  text-align: right; }

.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.3s ease; }
  .btn:hover {
    background-color: #2980b9;
    text-decoration: none;
    color: white; }

img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto; }

ul, ol {
  padding-left: 30px;
  margin-bottom: 1em; }

li {
  margin-bottom: 0.5em; }

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em; }

th, td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid #ddd; }

th {
  background-color: #f8f9fa;
  font-weight: 600; }

@media screen and (max-width: 768px) {
  body {
    font-size: 14px; }

  h1 {
    font-size: 2em; }

  h2 {
    font-size: 1.5em; }

  h3 {
    font-size: 1.25em; }

  .wrapper {
    padding: 0 15px; } }
.site-header {
  background-color: #2c3e50;
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); }

.site-header-content {
  display: flex;
  justify-content: space-between;
  align-items: center; }

.header-full-width, .footer-full-width {
  width: 100%;
  background-color: #0b4e8a;
  /* 自定义颜色 */
  color: white;
  padding: 10px 20px; }

.header-full-width nav,
.footer-full-width nav {
  max-width: 1200px;
  margin: 0 auto; }

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none; }
  .site-title:hover {
    color: #ecf0f1;
    text-decoration: none; }

.site-nav .nav-trigger {
  display: none; }
.site-nav .menu-icon {
  display: none; }
.site-nav .page-link {
  color: white;
  margin-left: 20px;
  font-weight: 500;
  transition: color 0.3s ease; }
  .site-nav .page-link:hover {
    color: #3498db;
    text-decoration: none; }

.language-switcher {
  display: inline-block;
  margin-left: 20px; }
  .language-switcher .lang-link {
    color: white;
    text-decoration: none;
    padding: 5px 8px;
    border-radius: 3px; }
    .language-switcher .lang-link.active {
      background-color: #3498db; }
    .language-switcher .lang-link:hover {
      background-color: rgba(255, 255, 255, 0.1);
      text-decoration: none; }
  .language-switcher .lang-separator {
    color: #bdc3c7;
    margin: 0 5px; }

.page-content {
  padding: 2rem 0;
  min-height: calc(100vh - 200px); }

.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 0;
  text-align: center; }
  .hero-section .hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700; }
  .hero-section .hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9; }
  .hero-section .hero-description {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6; }

.news-section {
  padding: 3rem 0;
  background-color: #f8f9fa; }

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem; }

.news-item {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease; }
  .news-item:hover {
    transform: translateY(-5px); }
  .news-item .news-date {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem; }
  .news-item .news-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #2c3e50; }
  .news-item .news-excerpt {
    color: #555;
    line-height: 1.6; }

.people-section {
  margin-bottom: 3rem; }
  .people-section .section-title {
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
    color: #2c3e50; }

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem; }

.person-card {
  background: white;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease; }
  .person-card:hover {
    transform: translateY(-5px); }
  .person-card .person-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    border: 4px solid #ecf0f1; }
  .person-card .person-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem; }
  .person-card .person-position {
    color: #3498db;
    font-weight: 500;
    margin-bottom: 1rem; }
  .person-card .person-research {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 1rem; }
  .person-card .person-email {
    color: #e74c3c;
    font-size: 0.9rem; }

.research-grid {
  display: grid;
  gap: 3rem;
  margin-top: 2rem; }

.research-area {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
  .research-area:nth-child(even) {
    grid-template-columns: 300px 1fr; }
    .research-area:nth-child(even) .research-content {
      order: 2; }
    .research-area:nth-child(even) .research-image {
      order: 1; }
  .research-area .research-title {
    color: #2c3e50;
    margin-bottom: 1rem; }
  .research-area .research-description {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.6; }
  .research-area .research-projects {
    list-style: none;
    padding: 0; }
    .research-area .research-projects li {
      padding: 0.5rem 0;
      border-bottom: 1px solid #ecf0f1;
      color: #3498db; }
      .research-area .research-projects li:before {
        content: "▶ ";
        color: #e74c3c; }
  .research-area .research-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px; }

.publications-year {
  margin-bottom: 3rem; }
  .publications-year .year-title {
    background: #3498db;
    color: white;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    font-size: 1.5rem;
    font-weight: 600; }

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

.publication-item {
  background: white;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-left: 4px solid #3498db;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); }
  .publication-item .pub-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem; }
  .publication-item .pub-authors {
    color: #555;
    margin-bottom: 0.5rem; }
  .publication-item .pub-venue {
    color: #3498db;
    font-weight: 500;
    margin-bottom: 0.5rem; }
  .publication-item .pub-type {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    text-transform: uppercase; }
    .publication-item .pub-type.journal {
      background: #27ae60; }
    .publication-item .pub-type.conference {
      background: #e74c3c; }

.events-section {
  margin-bottom: 3rem; }
  .events-section .section-title {
    border-bottom: 3px solid #e74c3c;
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
    color: #2c3e50; }

.event-list {
  display: grid;
  gap: 1.5rem; }

.event-item {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #e74c3c; }
  .event-item .event-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem; }
  .event-item .event-meta {
    color: #7f8c8d;
    margin-bottom: 1rem; }
    .event-item .event-meta .event-date {
      font-weight: 500;
      color: #e74c3c; }
  .event-item .event-description {
    color: #555;
    line-height: 1.6; }

.blog-page .page-header {
  text-align: center;
  margin-bottom: 3rem; }
  .blog-page .page-header .page-title {
    color: #2c3e50;
    margin-bottom: 1rem; }
  .blog-page .page-header .page-description {
    color: #7f8c8d;
    font-size: 1.1rem; }

.post-list {
  display: grid;
  gap: 2rem; }

.post-preview {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
  .post-preview .post-title {
    margin-bottom: 0.5rem; }
    .post-preview .post-title a {
      color: #2c3e50;
      text-decoration: none; }
      .post-preview .post-title a:hover {
        color: #3498db; }
  .post-preview .post-meta {
    color: #7f8c8d;
    margin-bottom: 1rem;
    font-size: 0.9rem; }
    .post-preview .post-meta .category {
      background: #3498db;
      color: white;
      padding: 0.2rem 0.5rem;
      border-radius: 3px;
      font-size: 0.8rem; }
  .post-preview .post-excerpt {
    color: #555;
    line-height: 1.6;
    margin-bottom: 1rem; }
  .post-preview .read-more {
    color: #3498db;
    font-weight: 500;
    text-decoration: none; }
    .post-preview .read-more:hover {
      text-decoration: underline; }

.post {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
  .post .post-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #ecf0f1; }
    .post .post-header .post-title {
      color: #2c3e50;
      margin-bottom: 1rem; }
    .post .post-header .post-meta {
      color: #7f8c8d; }
      .post .post-header .post-meta .category {
        background: #3498db;
        color: white;
        padding: 0.2rem 0.5rem;
        border-radius: 3px;
        font-size: 0.8rem;
        margin-right: 0.5rem; }
      .post .post-header .post-meta .tag {
        color: #e74c3c;
        margin-right: 0.5rem; }
  .post .post-content {
    line-height: 1.8; }
    .post .post-content h2, .post .post-content h3, .post .post-content h4, .post .post-content h5, .post .post-content h6 {
      margin-top: 2rem;
      margin-bottom: 1rem; }
    .post .post-content p {
      margin-bottom: 1.5rem; }
    .post .post-content blockquote {
      border-left: 4px solid #3498db;
      padding-left: 1rem;
      margin: 1.5rem 0;
      color: #555;
      font-style: italic; }
    .post .post-content code {
      background: #f8f9fa;
      padding: 0.2rem 0.4rem;
      border-radius: 3px;
      font-family: 'Monaco', 'Consolas', monospace; }
    .post .post-content pre {
      background: #2c3e50;
      color: white;
      padding: 1rem;
      border-radius: 5px;
      overflow-x: auto; }
      .post .post-content pre code {
        background: none;
        padding: 0; }
  .post .post-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #ecf0f1; }
    .post .post-footer .post-navigation {
      display: flex;
      justify-content: space-between; }
      .post .post-footer .post-navigation .prev-post, .post .post-footer .post-navigation .next-post {
        color: #3498db;
        text-decoration: none;
        font-weight: 500; }
        .post .post-footer .post-navigation .prev-post:hover, .post .post-footer .post-navigation .next-post:hover {
          text-decoration: underline; }

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 3rem;
  gap: 0.5rem; }
  .pagination a, .pagination .current {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    text-decoration: none;
    color: #3498db;
    border-radius: 3px; }
  .pagination .current {
    background: #3498db;
    color: white;
    border-color: #3498db; }
  .pagination a:hover {
    background: #f8f9fa;
    text-decoration: none; }

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem; }

.contact-card {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center; }
  .contact-card .contact-icon {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 1rem; }
  .contact-card .contact-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem; }
  .contact-card .contact-details {
    color: #555;
    line-height: 1.6; }

.site-footer {
  background-color: #2c3e50;
  color: white;
  padding: 2rem 0 1rem;
  margin-top: 3rem; }

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem; }

.footer-col h3 {
  color: white;
  margin-bottom: 1rem;
  font-size: 1.1rem; }
.footer-col ul {
  list-style: none;
  padding: 0; }
  .footer-col ul li {
    margin-bottom: 0.5rem; }
    .footer-col ul li a {
      color: #bdc3c7;
      text-decoration: none; }
      .footer-col ul li a:hover {
        color: white;
        text-decoration: underline; }
      .footer-col ul li a i {
        margin-right: 0.5rem; }
.footer-col p {
  color: #bdc3c7;
  line-height: 1.6; }

.footer-bottom {
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid #34495e;
  color: #bdc3c7; }

@media screen and (max-width: 768px) {
  .site-nav {
    position: absolute;
    top: 9px;
    right: 15px;
    background-color: #2c3e50;
    border: 1px solid #34495e;
    border-radius: 5px;
    text-align: right; }
    .site-nav .nav-trigger {
      display: block;
      position: absolute;
      top: -10px;
      right: -10px;
      width: 36px;
      height: 36px;
      z-index: 2;
      cursor: pointer;
      opacity: 0; }
    .site-nav .menu-icon {
      display: block;
      float: right;
      width: 36px;
      height: 26px;
      line-height: 0;
      padding-top: 10px;
      text-align: center; }
      .site-nav .menu-icon > svg {
        fill: white; }
    .site-nav .trigger {
      clear: both;
      display: none; }
    .site-nav:hover .trigger {
      display: block;
      padding-bottom: 5px; }
    .site-nav .nav-trigger:checked ~ .trigger {
      display: block;
      padding-bottom: 5px; }
    .site-nav .page-link {
      display: block;
      padding: 5px 10px;
      margin-left: 0; }
      .site-nav .page-link:not(:last-child) {
        margin-right: 0; }
    .site-nav .language-switcher {
      margin-left: 0;
      padding: 5px 10px; }

  .hero-section {
    padding: 2rem 0; }
    .hero-section .hero-title {
      font-size: 2rem; }
    .hero-section .hero-subtitle {
      font-size: 1rem; }

  .research-area {
    grid-template-columns: 1fr !important; }
    .research-area .research-content,
    .research-area .research-image {
      order: initial !important; }

  .post-navigation {
    flex-direction: column;
    gap: 1rem;
    text-align: center; }

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

  .contact-info {
    grid-template-columns: 1fr; } }
.highlight {
  background: #2c3e50;
  border-radius: 5px; }
  .highlight .c {
    color: #75715e; }
  .highlight .err {
    color: #960050;
    background-color: #1e0010; }
  .highlight .k {
    color: #66d9ef; }
  .highlight .l {
    color: #ae81ff; }
  .highlight .n {
    color: #f8f8f2; }
  .highlight .o {
    color: #f92672; }
  .highlight .p {
    color: #f8f8f2; }
  .highlight .cm {
    color: #75715e; }
  .highlight .cp {
    color: #75715e; }
  .highlight .c1 {
    color: #75715e; }
  .highlight .cs {
    color: #75715e; }
  .highlight .ge {
    font-style: italic; }
  .highlight .gs {
    font-weight: bold; }
  .highlight .kc {
    color: #66d9ef; }
  .highlight .kd {
    color: #66d9ef; }
  .highlight .kn {
    color: #f92672; }
  .highlight .kp {
    color: #66d9ef; }
  .highlight .kr {
    color: #66d9ef; }
  .highlight .kt {
    color: #66d9ef; }
  .highlight .ld {
    color: #e6db74; }
  .highlight .m {
    color: #ae81ff; }
  .highlight .s {
    color: #e6db74; }
  .highlight .na {
    color: #a6e22e; }
  .highlight .nb {
    color: #f8f8f2; }
  .highlight .nc {
    color: #a6e22e; }
  .highlight .no {
    color: #66d9ef; }
  .highlight .nd {
    color: #a6e22e; }
  .highlight .ni {
    color: #f8f8f2; }
  .highlight .ne {
    color: #a6e22e; }
  .highlight .nf {
    color: #a6e22e; }
  .highlight .nl {
    color: #f8f8f2; }
  .highlight .nn {
    color: #f8f8f2; }
  .highlight .nx {
    color: #a6e22e; }
  .highlight .py {
    color: #f8f8f2; }
  .highlight .nt {
    color: #f92672; }
  .highlight .nv {
    color: #f8f8f2; }
  .highlight .ow {
    color: #f92672; }
  .highlight .w {
    color: #f8f8f2; }
  .highlight .mf {
    color: #ae81ff; }
  .highlight .mh {
    color: #ae81ff; }
  .highlight .mi {
    color: #ae81ff; }
  .highlight .mo {
    color: #ae81ff; }
  .highlight .sb {
    color: #e6db74; }
  .highlight .sc {
    color: #e6db74; }
  .highlight .sd {
    color: #e6db74; }
  .highlight .s2 {
    color: #e6db74; }
  .highlight .se {
    color: #ae81ff; }
  .highlight .sh {
    color: #e6db74; }
  .highlight .si {
    color: #e6db74; }
  .highlight .sx {
    color: #e6db74; }
  .highlight .sr {
    color: #e6db74; }
  .highlight .s1 {
    color: #e6db74; }
  .highlight .ss {
    color: #e6db74; }
  .highlight .bp {
    color: #f8f8f2; }
  .highlight .vc {
    color: #f8f8f2; }
  .highlight .vg {
    color: #f8f8f2; }
  .highlight .vi {
    color: #f8f8f2; }
  .highlight .il {
    color: #ae81ff; }