:root {
  --heme: #2e2a4d;        /* 苏木精深蓝紫 */
  --heme-deep: #1e1b36;
  --eosin: #b8475f;       /* 伊红品红 */
  --eosin-soft: #f3dfe2;
  --bg: #faf8f6;
  --paper: #ffffff;
  --ink: #26242e;
  --ink-2: #5c5866;
  --rule: #e5e0da;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--heme-deep) 0%, var(--heme) 78%);
  color: #f4f2ee;
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.hero-text { max-width: 560px; }

.hero-kicker {
  font-size: 14px;
  letter-spacing: 0.12em;
  color: #b9b3d6;
  margin-bottom: 14px;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(38px, 6vw, 54px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-en {
  display: block;
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 500;
  color: #c9c3e2;
  letter-spacing: 0.04em;
  margin-top: 8px;
}

.hero-bio {
  font-size: 16px;
  color: #ddd9ec;
  margin-bottom: 22px;
  max-width: 34em;
}

.hero-tags { margin-bottom: 26px; }
.hero-tags span {
  display: inline-block;
  font-size: 13.5px;
  padding: 3px 12px;
  margin: 0 8px 8px 0;
  border: 1px solid rgba(233, 226, 246, 0.35);
  border-radius: 999px;
  color: #e6e2f4;
}

.hero-links a {
  display: inline-block;
  color: #f4f2ee;
  text-decoration: none;
  font-size: 15px;
  margin-right: 26px;
  padding-bottom: 2px;
  border-bottom: 1.5px solid var(--eosin);
  transition: color 0.2s;
}
.hero-links a:hover { color: #f0b7c2; }
.hero-links a:focus-visible { outline: 2px solid #f0b7c2; outline-offset: 3px; }

/* 细胞团点缀 */
.hero-stain {
  position: relative;
  width: 220px;
  height: 220px;
  flex-shrink: 0;
}
.stain-cell {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(233, 190, 199, 0.45);
  background: radial-gradient(circle at 35% 35%, rgba(244, 200, 208, 0.30), rgba(244, 200, 208, 0.08) 70%);
}
.stain-cell::after {
  content: "";
  position: absolute;
  inset: 30%;
  border-radius: 50%;
  background: rgba(216, 120, 138, 0.55);
}
.s1 { width: 110px; height: 110px; left: 40px;  top: 20px; }
.s2 { width: 80px;  height: 80px;  left: 130px; top: 60px; }
.s3 { width: 95px;  height: 95px;  left: 20px;  top: 110px; }
.s4 { width: 64px;  height: 64px;  left: 110px; top: 135px; }
.s5 { width: 48px;  height: 48px;  left: 70px;  top: 90px; opacity: 0.8; }
.s6 { width: 40px;  height: 40px;  left: 170px; top: 20px; opacity: 0.7; }
.s7 { width: 34px;  height: 34px;  left: 0px;   top: 70px; opacity: 0.6; }
.s8 { width: 30px;  height: 30px;  left: 95px;  top: 0px;  opacity: 0.5; }
.s9 { width: 26px;  height: 26px;  left: 180px; top: 160px; opacity: 0.45; }

/* ---------- 侧边目录 ---------- */
.toc {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 10;
}
.toc-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 28px;
}
.toc a {
  font-size: 14.5px;
  color: var(--ink-2);
  text-decoration: none;
  padding: 12px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.toc a:hover { color: var(--heme); }
.toc a:focus-visible { outline: 2px solid var(--heme); outline-offset: -2px; }
@media (min-width: 900px) {
  .toc a { padding: 12px 0; margin-bottom: -1px; }
  .toc a:hover { border-bottom-color: var(--eosin); }
}

/* ---------- 章节 ---------- */
main section { padding: 56px 0 8px; }

main h2 {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--heme);
  margin-bottom: 26px;
  padding-left: 16px;
  border-left: 5px solid var(--eosin);
  line-height: 1.3;
}

.section-note {
  font-size: 14.5px;
  color: var(--ink-2);
  margin: -14px 0 26px;
}
.note-link { color: var(--heme); text-decoration: none; border-bottom: 1px solid var(--eosin); }
.note-link:hover { color: var(--eosin); }

/* 论文标题与交叉引用 */
.pub-list a { color: var(--ink-2); text-decoration: none; border-bottom: 1px dashed #c9b6bc; transition: color 0.15s, border-color 0.15s; }
.pub-list a:hover { color: var(--eosin); border-bottom-color: var(--eosin); }
.pub-list a:focus-visible { outline: 2px solid var(--heme); outline-offset: 2px; }
.pub-ref { color: var(--heme); text-decoration: none; font-weight: 600; font-size: 0.92em; margin-left: 2px; white-space: nowrap; }
.pub-ref:hover { color: var(--eosin); }
.pub-ref:focus-visible { outline: 2px solid var(--heme); outline-offset: 2px; }
.entry-pub .entry-pub a { margin-left: 6px; }
.entry-pub em ~ a.pub-ref { margin-left: 0; }
/* 期刊/会议名到成果列表的引用链接 */
.entry-pub a.pub-ref { border-bottom: none; }
:target { scroll-margin-top: 56px; }

/* ---------- 时间线条目 ---------- */
.timeline { position: relative; }
.entry {
  position: relative;
  padding: 0 0 34px 26px;
  border-left: 2px solid var(--rule);
}
.timeline .entry:last-child { border-left-color: transparent; }
.entry::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--eosin);
  border: 2.5px solid var(--bg);
}
.entry-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.entry-head h3 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.45;
}
.entry-dates {
  font-size: 13.5px;
  color: var(--ink-2);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.entry-sub {
  font-size: 14.5px;
  color: var(--eosin);
  margin-top: 2px;
  font-weight: 500;
}
.entry-desc {
  font-size: 15px;
  color: var(--ink-2);
  margin-top: 10px;
  max-width: 46em;
}
.entry-points {
  margin: 10px 0 0;
  padding-left: 0;
  list-style: none;
  max-width: 46em;
}
.entry-points li {
  font-size: 15px;
  color: var(--ink-2);
  padding-left: 20px;
  position: relative;
  margin-bottom: 4px;
}
.entry-points li::before {
  content: "▪";
  position: absolute;
  left: 2px;
  color: var(--eosin);
  font-size: 12px;
  top: 1px;
}
.entry-pub {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-top: 12px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 12px 16px;
  max-width: 46em;
}
.entry-pub em {
  font-style: normal;
  font-weight: 700;
  color: var(--heme);
  margin-right: 8px;
}
.entry-pub em::after {
  content: "｜";
  font-weight: 400;
  color: var(--ink-2);
  margin-left: 6px;
}

/* ---------- 项目机构标签 ---------- */
.entry-org {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  background: var(--eosin-soft);
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 8px;
  vertical-align: 2px;
  white-space: nowrap;
}

/* ---------- 技能 ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 52em;
}
.skill-block {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 16px 20px;
}
.skill-block h3 {
  font-family: var(--serif);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--heme);
  margin-bottom: 8px;
}
.skill-block p {
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.8;
}

/* ---------- 论文列表 ---------- */
.pub-group {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 34px 0 14px;
}
.pub-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.pub-list li {
  counter-increment: pub-item;
  font-size: 15px;
  color: var(--ink-2);
  padding: 10px 0 10px 44px;
  position: relative;
  border-bottom: 1px dashed var(--rule);
  max-width: 52em;
}
.pub-list li::before {
  content: "[" counter(pub-item) "]";
  position: absolute;
  left: 0;
  top: 10px;
  font-weight: 600;
  color: var(--heme);
  font-variant-numeric: tabular-nums;
}
/* ---------- 关于我 ---------- */
.about-text p {
  font-size: 15.5px;
  color: var(--ink-2);
  max-width: 46em;
  margin-bottom: 14px;
}

/* ---------- footer ---------- */
.footer {
  margin-top: 72px;
  background: var(--heme-deep);
  color: #cdc8e0;
  padding: 34px 0;
  font-size: 14.5px;
}
.footer-inner { display: flex; flex-wrap: wrap; gap: 6px 30px; align-items: baseline; }
.footer a { color: #e8e4f4; text-decoration: none; border-bottom: 1px solid var(--eosin); }
.footer a:hover { color: #f0b7c2; }
.footer-updated { color: #8f89ab; }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .hero { padding: 48px 0 44px; }
  .hero-inner { flex-direction: column-reverse; align-items: flex-start; }
  .hero-stain { width: 150px; height: 150px; margin-bottom: 8px; }
  .stain-cell { transform-origin: center; }
  .s1 { width: 75px; height: 75px; left: 25px; top: 15px; }
  .s2 { width: 55px; height: 55px; left: 90px; top: 40px; }
  .s3 { width: 65px; height: 65px; left: 12px; top: 75px; }
  .s4 { width: 44px; height: 44px; left: 75px; top: 92px; }
  .s5 { width: 33px; height: 33px; left: 48px; top: 62px; }
  .s6 { width: 28px; height: 28px; left: 118px; top: 14px; }
  .s7 { width: 23px; height: 23px; left: 0; top: 48px; }
  .s8 { width: 20px; height: 20px; left: 65px; top: 0; }
  .s9 { width: 18px; height: 18px; left: 125px; top: 110px; }
  main section { padding: 44px 0 4px; }
  main h2 { font-size: 24px; }
  .entry { padding-left: 20px; }
  .pub-list li { padding-left: 38px; }
}

/* ---------- 打印 ---------- */
@media print {
  .toc, .hero-stain { display: none; }
  .hero { background: var(--heme); -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}