:root {
  --bg: #ffffff;
  --text: #000000;
  --muted: #828282;
  --line: rgba(0, 0, 0, 0.1);
  --theme: #0076df;
  --maxw: 960px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1d;
    --text: #e8e8e8;
    --muted: #a8a8a8;
    --line: #3a3a3e;
    --theme: #2698ba;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px 40px; }

a { color: var(--theme); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin: 0 0 14px; }

/* ---------- header / bio ---------- */

header { padding: 56px 0 0; }

h1 {
  font-size: 2.1rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  margin: 0 0 22px;
}
h1 .first { font-weight: 700; }

.profile {
  float: right;
  width: 210px;
  margin: 4px 0 20px 34px;
}
.profile img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
}

.bio { overflow: hidden; }
.bio .meta { color: var(--muted); font-size: 0.95rem; }
.bio .meta strong { color: var(--text); }
.bio .meta .sep { margin: 0 7px; color: var(--line); }

/* ---------- sections ---------- */

h2 {
  font-size: 1.5rem;
  font-weight: 400;
  margin: 46px 0 6px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

/* ---------- publications ---------- */

.pub {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 30px;
  padding: 30px 0;
}
.pub + .pub { border-top: 1px solid var(--line); }

.pub .left {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.pub .left a { display: block; }
.pub .left img { display: block; width: 100%; height: auto; }

.pub .title { font-size: 1.05rem; font-weight: 700; line-height: 1.4; margin: 0 0 6px; }
.pub .title a { color: var(--text); }
.pub .title a:hover { color: var(--theme); text-decoration: none; }
.pub .authors { font-size: 0.95rem; margin: 0 0 4px; }
.pub .authors b { font-weight: 700; }
.pub .venue { font-size: 0.92rem; font-style: italic; color: var(--muted); margin: 0 0 10px; }
.pub .note { font-size: 0.94rem; margin: 0; }

/* ---------- footer ---------- */

footer {
  margin-top: 50px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
footer img { display: block; }

/* ---------- narrow screens ---------- */

@media (max-width: 700px) {
  header { padding-top: 34px; }
  h1 { font-size: 1.8rem; }
  .profile {
    float: none;
    width: 170px;
    margin: 0 auto 22px;
  }
  .pub { grid-template-columns: 1fr; gap: 16px; }
}