/* ===== 实验室门户样式 —— 参照 moonshot.cn：黑白色阶、衬线字体、细线分隔 ===== */
:root {
  --serif: Georgia, "Times New Roman", "Songti SC", "STSong", "Noto Serif SC", SimSun, serif;
  --bg: #fbfbfa;
  --card: #ffffff;
  --card-2: #f5f4f1;
  --line: rgba(0, 0, 0, .12);
  --line-soft: rgba(0, 0, 0, .06);
  --ink: #171717;
  --ink-soft: rgba(0, 0, 0, .62);
  --faint: rgba(0, 0, 0, .4);
  --primary: #3f3cb8;
  --primary-dark: #32308f;
  --primary-soft: rgba(0, 0, 0, .05);
  --btn-bg: #171717;
  --btn-ink: #ffffff;
  --shadow: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.9;
  font-size: 16px;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部导航 ===== */
.topbar { border-bottom: 1px solid var(--line-soft); }
.topbar-in {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand { font-size: 18px; font-weight: 700; letter-spacing: .5px; color: var(--ink); text-decoration: none; }
.brand small { color: var(--faint); font-weight: 400; margin-left: 10px; font-size: 13px; }
.topnav { display: flex; gap: 26px; }
.topnav a { color: var(--ink-soft); text-decoration: none; font-size: 14.5px; }
.topnav a:hover { color: var(--ink); }

/* ===== Hero ===== */
.hero { padding: 92px 0 64px; }
.hero .eyebrow {
  font-size: 13px; letter-spacing: 4px; color: var(--faint); margin: 0 0 18px;
}
.hero h1 {
  font-size: 56px; line-height: 1.25; margin: 0 0 22px; font-weight: 700;
  letter-spacing: 1px;
}
.hero .lead {
  font-size: 17px; color: var(--ink-soft); margin: 0 0 26px; max-width: 620px; line-height: 2;
}
.hero .creed {
  font-size: 20px; color: var(--ink); line-height: 2.2;
  margin: 30px 0; max-width: 620px;
}

/* ===== 署名块 ===== */
.credit { padding: 34px 6px 20px; }
.credit-motto { font-size: 19px; color: var(--ink); margin: 0 0 8px; }
.credit-line { font-size: 14.5px; color: var(--ink-soft); margin: 5px 0; }
.credit-links { margin: 18px 0 0; font-size: 14.5px; }
.credit-links a {
  color: var(--ink); text-decoration: none;
  border-bottom: 1px solid var(--line); padding-bottom: 2px;
  transition: border-color .2s;
}
.credit-links a:hover { border-bottom-color: var(--ink); }
.credit-links .dot { color: var(--faint); margin: 0 12px; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge {
  font-size: 13px; padding: 5px 16px; border-radius: 999px;
  color: var(--ink-soft); border: 1px solid var(--line);
}
.badge.solid { background: var(--btn-bg); color: var(--btn-ink); border-color: var(--btn-bg); }

/* ===== 实验室列表：细线分隔的行 ===== */
.list-head {
  display: flex; align-items: baseline; justify-content: space-between;
  border-bottom: 1px solid var(--ink); padding-bottom: 10px; margin-bottom: 0;
}
.list-head h2 { margin: 0; font-size: 20px; font-weight: 700; }
.list-head span { font-size: 13px; color: var(--faint); letter-spacing: 2px; }
.lab-row {
  display: flex; align-items: center; gap: 28px;
  padding: 30px 6px; border-bottom: 1px solid var(--line);
  text-decoration: none; color: inherit;
  transition: background .2s ease;
}
a.lab-row:hover { background: var(--primary-soft); }
a.lab-row:hover .row-go { color: var(--ink); }
.row-no {
  flex: none; font-size: 14px; color: var(--faint); letter-spacing: 1px;
  font-variant-numeric: tabular-nums; width: 34px;
}
.row-main { flex: 1; min-width: 0; }
.row-main h3 { margin: 0 0 6px; font-size: 21px; font-weight: 700; }
.row-main p { margin: 0; font-size: 14.5px; color: var(--ink-soft); line-height: 1.9; }
.row-meta { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.row-meta span {
  font-size: 12px; color: var(--faint); border: 1px solid var(--line);
  border-radius: 999px; padding: 1px 10px;
}
.row-go {
  flex: none; font-size: 14px; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 7px 20px;
  white-space: nowrap; transition: all .2s;
}
a.lab-row:hover .row-go { border-color: var(--btn-bg); background: var(--btn-bg); color: var(--btn-ink); }
.lab-row.soon { color: var(--faint); }
.lab-row.soon .row-main h3 { color: var(--ink-soft); }
.lab-row.soon .row-go { border-style: dashed; }

.more-hint {
  font-size: 13.5px; color: var(--faint); padding: 22px 6px 10px; margin: 0; line-height: 2;
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 56px; padding: 30px 24px 44px;
  text-align: center; color: var(--faint); font-size: 13.5px;
}

/* ===== 响应式 ===== */
@media (max-width: 720px) {
  .hero { padding: 54px 0 40px; }
  .hero h1 { font-size: 34px; }
  .hero .lead { font-size: 15.5px; }
  .wrap { padding: 0 18px; }
  .topnav { display: none; }
  .lab-row { gap: 16px; padding: 24px 2px; }
  .row-no { width: auto; }
  .row-main h3 { font-size: 18px; }
  .row-go { display: none; }
}