:root {
  color-scheme: light dark;
  --bg: #f6f5f2; --text: #1a1917; --muted: #5c5852; --line: #e4e0d8;
  --card: #fffcf8; --accent: #2c4a3d; --tag: #e7efe9;
  --nav: 3.25rem; --col: 52rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413; --text: #eeebe6; --muted: #b3ada5; --line: #2e2d2a;
    --card: #1c1c1a; --accent: #9dccb4; --tag: #24302a;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans SC",
    "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  gap: 0.35rem 1.15rem;
  align-items: center;
  min-height: var(--nav);
  padding: 0.55rem max(1.25rem, calc((100% - var(--col)) / 2 + 1.25rem));
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.nav a { color: var(--text); text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--accent); }

main, footer {
  max-width: var(--col);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

section {
  padding-block: 2rem 0.35rem;
  scroll-margin-top: calc(var(--nav) + 0.5rem);
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(1.85rem, 5vw, 2.35rem); font-weight: 650; }
h2 {
  margin-bottom: 0.85rem;
  color: var(--accent);
  font-size: 1.22rem;
  scroll-margin-top: calc(var(--nav) + 0.5rem);
}
h3 { margin: 0.15rem 0 0.45rem; font-size: 1rem; }
.lead { margin-top: 0.4rem; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.card {
  padding: 0.7rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

.shot {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  margin-bottom: 0.6rem;
  border-radius: 0.4rem;
  background: var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.card h3 { margin-bottom: 0.25rem; }
.card p { margin-bottom: 0.55rem; color: var(--muted); font-size: 0.9rem; }

.link-disabled {
  display: inline-block;
  padding: 0.08rem 0.55rem;
  border: 1px dashed var(--muted);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
  cursor: not-allowed;
}

.timeline {
  --rail: 1rem;
  margin: 0 0 1.15rem;
  padding: 0 0 0 var(--rail);
  list-style: none;
  border-left: 2px solid var(--line);
}

.timeline li { position: relative; padding: 0 0 0.85rem 0.85rem; }

.timeline li::before {
  content: "";
  position: absolute;
  left: calc(var(--rail) * -1 - 0.25rem - 1px);
  top: 0.42rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
}

.when { color: var(--muted); font-size: 0.8rem; }
.role { margin: 0.1rem 0; font-weight: 650; }
.timeline li > p:last-child { color: var(--muted); font-size: 0.9rem; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tags li {
  padding: 0.12rem 0.65rem;
  border-radius: 999px;
  background: var(--tag);
  color: var(--accent);
  font-size: 0.86rem;
}

.contact { margin: 0.7rem 0 0; padding-left: 1.15rem; }
.contact li + li { margin-top: 0.25rem; }

footer {
  padding-block: 1.6rem 2.4rem;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 680px) {
  .nav { flex-wrap: wrap; row-gap: 0.35rem; column-gap: 0.75rem; }
  .nav a { flex: 1 1 40%; padding-block: 0.15rem; text-align: center; }
  .grid { grid-template-columns: 1fr; }
  section, h2 { scroll-margin-top: 6.5rem; }
  .timeline { --rail: 0.85rem; }
}