:root {
  color-scheme: light;
  --bg: #fafbfc;
  --paper: #ffffff;
  --heading: #171a1f;
  --text: #343a40;
  --muted: #68717d;
  --nav: #4d5661;
  --divider-text: #aab1ba;
  --line: #dfe3e8;
  --line-soft: #f0f2f5;
  --link: #1f5f83;
  --link-hover: #113d59;
  --accent: #7c3b35;
  --project-link: #205a75;
  --max-width: 820px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #ffffff 0, var(--bg) 360px),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.68;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
}

a {
  color: var(--link);
  text-decoration: none;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  width: min(var(--max-width), calc(100% - 32px));
  min-height: 56px;
  margin: 0 auto;
  align-items: center;
}

.nav a {
  color: var(--nav);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: lowercase;
}

.nav a.active {
  color: var(--accent);
}

.page {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 54px;
}

.intro {
  position: relative;
  min-height: 360px;
  margin-bottom: 64px;
  padding-bottom: 10px;
}

h1 {
  max-width: 650px;
  margin-bottom: 12px;
  color: var(--heading);
  font-family: var(--font-display);
  font-size: 3.15rem;
  font-weight: 720;
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 28px;
  color: var(--heading);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 720;
  line-height: 1.25;
  letter-spacing: 0;
  text-transform: none;
}

h3 {
  margin-bottom: 3px;
  color: var(--heading);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.4;
  letter-spacing: 0;
}

.profile {
  float: right;
  width: 190px;
  margin: 5px 0 22px 38px;
}

.profile img {
  display: block;
  width: 100%;
  height: auto;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(30, 45, 60, 0.08);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 8px;
  margin-top: 16px;
  font-size: 0.96rem;
}

.links span {
  color: var(--divider-text);
}

.section {
  clear: both;
}

.section + .section {
  margin-top: 78px;
}

.work-item {
  display: grid;
  grid-template-columns: 178px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
  padding: 0;
}

.work-item + .work-item {
  margin-top: 36px;
}

h2 + .work-item {
  padding-top: 4px;
}

.work-item h3 {
  margin: 0;
  font-size: 1.18rem;
}

.work-item h3 a {
  color: var(--project-link);
}

.work-item h3 a:hover {
  color: var(--link-hover);
}

.work-item p {
  margin-bottom: 0;
  color: var(--text);
}

.news-item {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 0;
}

.news-item + .news-item {
  margin-top: 28px;
}

.news-item time {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
}

.news-item p {
  margin-bottom: 0;
  color: var(--text);
}

.scholar-note {
  margin-top: 30px;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact p {
  margin-bottom: 0;
}

.footer {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0 28px;
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 700px) {
  body {
    font-size: 15.5px;
  }

  .nav {
    justify-content: space-between;
    gap: 12px;
    min-height: 52px;
  }

  .nav a {
    font-size: 0.9rem;
  }

  .page {
    padding-top: 34px;
  }

  .intro {
    display: flex;
    flex-direction: column;
    min-height: 0;
    margin-bottom: 42px;
    padding-bottom: 0;
  }

  h1 {
    order: 1;
    font-size: 2.42rem;
  }

  .profile {
    order: 2;
    float: none;
    width: min(210px, 72vw);
    margin: 0 0 26px;
  }

  .intro > p:not(.links) {
    order: 3;
  }

  .links {
    order: 4;
  }

  .work-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .section + .section {
    margin-top: 54px;
  }

  h2 {
    margin-bottom: 22px;
    font-size: 1.04rem;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 0;
  }
}