/* ========== Global layout ========== */

body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  /* REMOVE: max-width: 1200px; */
  /* REMOVE: margin: 0 auto; */
  /* REMOVE: padding: 24px 16px 80px 16px; */
  margin: 0;  /* ADD this */
  padding: 0; /* ADD this */
  line-height: 1.6;
  color: #1a1a1a;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 16px;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.3;
  margin: 0 0 .5rem 0;
  font-weight: 600;
  color: #0f172a;
}
h2 {
  font-size: 1.3rem;
  line-height: 1.4;
  margin: 2.5rem 0 .75rem 0;
  font-weight: 600;
  color: #0f172a;
  scroll-margin-top: 64px;
}
h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 .5rem 0;
  font-weight: 600;
  color: #0f172a;
}

p {
  margin: .5rem 0 1rem 0;
  font-size: 1.2rem;
  color: #1a1a1a;
  text-align: justify;
  text-justify: inter-word;
}

ul {
  margin-top: .25rem;
  margin-bottom: 1rem;
  padding-left: 1.25rem;
  font-size: 1.1rem;
}
li {
  margin-bottom: .4rem;
  font-size: 1.1rem;
  line-height: 1.5;
  color: #1a1a1a;
  text-align: justify;
  text-justify: inter-word;
}

small {
  font-size: .8rem;
  color: #4b5563;
  line-height: 1.4;
  text-align: justify;
  text-justify: inter-word;
  display: block;
}

a {
  color: #0369a1;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

hr {
  border: 0;
  border-top: 1px solid #e5e7eb;
  margin: 2rem 0;
  clear: both;
}

/* Header / nav */

/* 假设这些变量已在 :root 中定义 */
:root {
  --header-bg: #1a2233; /* 示例颜色 */
  --header-text: #f8fafc; /* 示例颜色 */
  --header-border: #333f54; /* 示例颜色 */
  --link-color: #9ecaff; /* 示例链接颜色（截图中偏蓝） */
  --radius-pill: 99px;
}

/* ADD: Wrapper for main page content */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 80px 16px;
}

/* Header / nav */
.site-header {
  background-color: var(--header-bg);
  color: var(--header-text);
  border-bottom: 1px solid var(--header-border);
}

.nav-row {
  display: flex;
  flex-wrap: wrap; /* 允许换行 */
  align-items: center;
  
  /* MODIFIED: 从 1.25rem 0 改为 1.25rem 16px */
  padding: 1.25rem 16px; 
  
  justify-content: space-between;
  gap: 1.5rem; /* 增大元素间距 */

  /* ADD: 约束 header 内部内容 */
  max-width: 1200px;
  margin: 0 auto;
}

/* 左侧品牌信息 */
.site-identity {
  /* 允许其内部元素堆叠 */
  display: flex;
  flex-direction: column;
  gap: 0.25rem; /* 品牌名、sub、links 之间的小间距 */
}

.brand {
  font-size: 1.25rem; /* 优化：增大品牌名字体 */
  font-weight: 600;
  color: var(--header-text);
  text-decoration: none;
  line-height: 1.2;
  display: block; /* 优化：使其成为块级元素，不再需要 <br> */
}

.brand-sub {
  font-size: 1rem; /* 优化：增大字体，提高可读性 */
  font-weight: 400;
  color: rgba(248, 250, 252, .6);
  line-height: 1.2;
}

/* 新增：处理内联链接 */
.links-inline {
  font-size: .8rem;
}

.links-inline a {
  color: var(--link-color); /* 优化：使用截图中显示的链接颜色 */
  text-decoration: none;
}

.links-inline a:hover {
  text-decoration: underline;
}

/* 优化：使用 CSS 添加分隔符 */
.links-inline a + a::before {
  content: "·";
  color: rgba(248, 250, 252, .6); /* 分隔符颜色与 sub 保持一致 */
  margin: 0 0.5em; /* 在分隔符两侧添加空间 */
}


/* 右侧导航 */
.site-nav {
  /* 当 flex-wrap 换行时，确保导航有一定空间 */
  margin-top: 0.5rem;
}

.site-nav a {
  font-size: 1.1rem;
  color: var(--header-text);
  text-decoration: none;
  padding: .4rem .6rem;
  border-radius: var(--radius-pill);
  display: inline-block;
  white-space: nowrap; /* 确保 "Publications" 等不会换行 */
}

.site-nav a:hover {
  background-color: rgba(255, 255, 255, .08);
}


/* 优化：添加响应式处理 */
@media (max-width: 768px) {
  .nav-row {
    flex-direction: column; /* 垂直堆叠 */
    align-items: flex-start; /* 左对齐 */
    padding: 1rem 0; /* 调整 padding */
    gap: 1rem;
  }

  .site-identity {
    /* 在小屏幕上，品牌信息内部也居中或左对齐 */
    align-items: flex-start; /* 或者 'center' */
    text-align: left; /* 或者 'center' */
    width: 100%;
  }

  .site-nav {
    margin-top: 0.5rem;
    width: 100%;
    text-align: left; /* 或者 'center' */
  }

  .site-nav a {
    /* 微调导航项的 padding */
    padding: .4rem .4rem .4rem 0;
  }

  /* 在小屏幕上，链接可能需要换行 */
  .links-inline {
    word-break: break-all;
  }
}


/* ========== Intro Block (Home Page) ========== */

.intro-block::after {
  /* 这是一个“清除浮动”的现代方法，防止下方的 <hr> 跑到文字右边 */
  content: "";
  display: table;
  clear: both;
}

.intro-photo {

  float: left; 
  width: 220px; 
  margin-right: 24px; 
  margin-bottom: 10px;
}

.intro-photo img {
  width: 100%; 
  height: 100%; 
  display: block;
  border: 1px solid #d1d5db; /* (我加了个边框，和 pub-thumb 统一) */
  border-radius: 4px;       /* (我加了个圆角) */
}

.intro-name {
  font-size: .9rem;
  font-weight: 600;
  color: #0f172a;
  text-align: center;
  margin-top: .5rem;
  line-height: 1.4;
}

/* footer note */

.footer-note {
  margin-top: 3rem;
  font-size: .8rem;
  color: #94a3b8;
  line-height: 1.4;
  text-align: left;
}

/* legacy classes */

.header-block { display: none; }
.header-photo { display: none; }
.header-photo img { display: none; }
.meta-line {
  font-size: .9rem;
  color: #4b5563;
  line-height: 1.4;
  margin-bottom: .5rem;
}
.badge-links a {
  display: inline-block;
  margin-right: .75rem;
  margin-bottom: .5rem;
  font-size: .8rem;
  font-weight: 500;
  background: #f1f5f9;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  border-radius: .5rem;
  padding: .3rem .5rem;
  text-decoration: none;
}
.badge-links a:hover {
  background: #e2e8f0;
  text-decoration: none;
}

/* ========== Publications / Systems page layout ========== */

.pub-top-links {
  font-size: 1rem;
  line-height: 1.4;
  color: #475569;
  margin-bottom: 1.5rem;
  text-align: left;
}
.pub-top-links button {
  display: inline-block;
  margin: 0 .5rem .5rem 0;
  padding: .3rem .5rem;
  border-radius: .4rem;
  border: 1px solid #cbd5e1;
  background: #f8fafc;
  font-weight: 500;
  color: #0369a1;
  text-decoration: none;
  white-space: nowrap;
  font-size: .8rem;
  cursor: pointer;
}
.pub-top-links button:hover {
  background: #e2e8f0;
  text-decoration: none;
}
.pub-top-links button.active {
  background: #0369a1;
  color: #fff;
  border-color: #0369a1;
}

.pub-section-title {
  font-size: 1.6rem;
  font-weight: 600;
  color: #0f172a;
  margin: 2rem 0 .75rem 0;
  line-height: 1.3;
  text-align: left;
}


.pub-intro-blurb {
  font-size: 1rem;
  line-height: 1.5;
  color: #4b5563;
  max-width: 100%;
  margin-bottom: 1rem;
  text-align: justify;
  text-justify: inter-word;
}

.pub-entry {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 20px;
  border-bottom: 1px solid #e5e7eb;
  padding: 1.2rem 0 1.5rem 0;
  font-size: 1rem;
  line-height: 1.5;
  color: #1a1a1a;
}

.pub-left {
  flex: 0 0 260px;
  max-width: 100%;
}

.pub-thumb {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  background: #f8fafc;
}

.pub-right {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100px;
}

.pub-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #0f172a;
  line-height: 1.4;
  margin: 0;
}

.pub-authors {
  font-size: .95rem;
  color: #374151;
  margin: 0;
  line-height: 1.4;
}

.pub-authors u {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pub-venue {
  font-size: 1rem;
  color: #6b7280;
  line-height: 1.4;
  margin: 0;
  font-style: italic;
}

.pub-links {
  font-size: 1rem;
  color: #475569;
  line-height: 1.4;
  margin: 0;
}

.pub-links a {
  color: #0369a1;
  font-weight: 500;
  margin-right: .8rem;
  text-decoration: none;
}

.pub-links a:hover {
  text-decoration: underline;
}

.pub-entry.hidden {
  display: none;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .pub-left {
    flex: 0 0 200px;
    max-width: 200px;
  }
  
  .pub-thumb {
    width: 200px;
    height: 120px;
  }
  
  .pub-right {
    min-height: 120px;
  }
}