/* 字体随网站打包：西文使用 Comic Mono，中文回退到霞鹜文楷等宽。 */
@font-face {
  font-family: "Comic Mono";
  src: url("assets/fonts/ComicMono.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Comic Mono";
  src: url("assets/fonts/ComicMono-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LXGW WenKai Mono";
  src: url("assets/fonts/LXGWWenKaiMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LXGW WenKai Mono";
  src: url("assets/fonts/LXGWWenKaiMono-Medium.woff2") format("woff2");
  font-weight: 500 700;
  font-style: normal;
  font-display: swap;
}

/* 全站配色与字体；修改这里可以统一调整网页。 */
:root {
  --paper: #f8faff;
  --ink: #17375e;
  --body: #52657d;
  --line: #dce3ef;
  --accent: #376fb0;
  /* 全站字号累计增加 5pt，保留每个区块的原始字号比例。 */
  --font-size-increase: 5pt;
  --font-family: "Comic Mono", "LXGW WenKai Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 105px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-family);
  font-size: calc(15px + var(--font-size-increase));
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
}

a,
button {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
}

::selection {
  background: #dbe9fa;
}

svg {
  display: block;
  width: 100%;
}

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

.header,
main,
footer {
  max-width: 1200px;
  margin: auto;
  padding-left: 48px;
  padding-right: 48px;
}

.header {
  height: 105px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 16px;
}

.monogram {
  font-family: Georgia, serif;
  font-size: calc(37px + var(--font-size-increase));
  letter-spacing: -2px;
}

.monogram span {
  color: var(--accent);
  padding-left: 4px;
}

.wordmark-text {
  font-size: calc(12px + var(--font-size-increase));
  letter-spacing: 2px;
  font-weight: 700;
}

.wordmark-text > span {
  display: block;
  font-size: calc(10px + var(--font-size-increase));
  letter-spacing: 2px;
  font-weight: 400;
  color: #71819a;
  margin-top: 5px;
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 34px;
}

nav {
  display: flex;
  gap: 29px;
}

nav a {
  font-size: calc(13px + var(--font-size-increase));
  position: relative;
}

nav a:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.2s;
}

nav a:hover:after,
nav a.active:after {
  transform: scaleX(1);
}

.language {
  background: none;
  border: 0;
  border-left: 1px solid var(--line);
  padding: 3px 0 3px 23px;
  font-size: calc(12px + var(--font-size-increase));
  color: var(--ink);
}

.language span {
  margin-left: 5px;
  color: var(--accent);
}

.menu {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 50px;
  padding-top: 72px;
  padding-bottom: 64px;
  align-items: center;
}

.hero-copy {
  /* 姓名与身份介绍比全站字号小 2pt。 */
  --identity-font-size-increase: calc(var(--font-size-increase) - 15pt);
}

.eyebrow {
  font-size: calc(10px + var(--font-size-increase));
  letter-spacing: 1.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.eyebrow-rule {
  width: 24px;
  height: 1px;
  background: #9aabc2;
}

.hero h1 {
  margin: 34px 0 25px;
  font-family: var(--font-family);
  font-weight: 500;
}

.chinese-name {
  display: block;
  font-size: calc(76px + var(--identity-font-size-increase));
  letter-spacing: 10px;
  line-height: 1.2;
}

.latin-name {
  display: block;
  font-family: var(--font-family);
  font-size: calc(42px + var(--identity-font-size-increase));
  font-weight: 400;
  line-height: 1.35;
  margin-top: 15px;
  letter-spacing: -1.5px;
}

.role {
  font-size: calc(17px + var(--identity-font-size-increase) + 10pt);
  letter-spacing: 1px;
  margin-top: 26px;
}

.affiliation {
  color: var(--body);
  font-size: calc(13px + var(--identity-font-size-increase));
  margin-top: 10px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
  font-size: calc(12px + var(--font-size-increase));
  letter-spacing: 0.5px;
  transition:
    background 0.2s,
    transform 0.2s;
}

.button:hover {
  transform: translateY(-2px);
}

.primary {
  background: var(--ink);
  color: #fff;
}

.primary:hover {
  background: #285486;
}

.text-link {
  font-size: calc(12px + var(--font-size-increase));
  display: flex;
  gap: 12px;
  align-items: center;
}

.text-link:hover {
  color: var(--accent);
}

.hero-note {
  margin-top: 47px;
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: calc(10px + var(--font-size-increase));
  letter-spacing: 1.5px;
  color: #71849f;
}

.hero-note > span:first-child {
  color: var(--accent);
  font-family: var(--font-family);
  font-size: calc(11px + var(--font-size-increase));
}

.hero-figure {
  background: #edf3fc;
  border: 1px solid #d7e3f4;
  position: relative;
  padding: 18px;
  transform: rotate(-1.5deg);
  box-shadow: 8px 8px 0 #e8eef8;
  transition: transform 0.4s;
}

.hero-figure:hover {
  transform: rotate(0deg);
}

.energy-figure {
  margin-top: 0;
}

.svg-label {
  font-size: calc(16px + var(--font-size-increase));
  font-family: var(--font-family);
  fill: #285a97;
}

.svg-small {
  font-size: calc(10px + var(--font-size-increase));
  font-family: var(--font-family);
  fill: #6b85a5;
}

.discipline-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
  font-size: calc(13px + var(--font-size-increase));
  color: #516e93;
}

.discipline-strip i {
  font-style: normal;
  color: #9bafca;
  font-size: calc(17px + var(--font-size-increase));
}

.section {
  padding: 70px 0;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 30px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 15px;
}

.section-number {
  display: block;
  font-family: var(--font-family);
  font-size: calc(10px + var(--font-size-increase));
  letter-spacing: 1.4px;
  color: var(--accent);
  margin-bottom: 17px;
}

.section-label h2 {
  font-family: var(--font-family);
  font-weight: 500;
  font-size: calc(29px + var(--font-size-increase));
  letter-spacing: 2px;
  line-height: 1.5;
}

.section-label > p {
  font-size: calc(12px + var(--font-size-increase));
  color: #8092ac;
  margin-top: 15px;
}

.body-copy {
  color: var(--body);
  font-size: calc(14px + var(--font-size-increase));
  line-height: 2.15;
  margin-top: 0;
  max-width: 730px;
}

.profile-facts {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 15px;
  margin-top: 32px;
}

.profile-facts > div {
  border-left: 1px solid var(--line);
  padding-left: 17px;
}

.profile-facts > div:first-child {
  border: 0;
  padding-left: 0;
}

.profile-facts span {
  display: block;
  font-size: calc(10px + var(--font-size-increase));
  color: #7a8eab;
  letter-spacing: 1px;
  margin-bottom: 9px;
}

.profile-facts strong {
  font-weight: 500;
  font-size: calc(12px + var(--font-size-increase));
}

.profile-facts a:hover {
  color: var(--accent);
}

.timeline-item {
  display: grid;
  grid-template-columns: 165px minmax(0, 1fr);
  gap: 24px;
  padding: 0 0 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.timeline-item:last-child {
  border: 0;
  padding: 0;
  margin: 0;
}

.timeline-time {
  font-family: var(--font-family);
  font-size: calc(13px + var(--font-size-increase));
  padding-top: 5px;
  color: #365f95;
}

.timeline-time > span {
  font-family: var(--font-family);
  display: block;
  font-size: calc(10px + var(--font-size-increase));
  color: #7f92ae;
  margin-top: 13px;
  letter-spacing: 1px;
}

.institution {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.institution h3 {
  font-family: var(--font-family);
  font-size: calc(22px + var(--font-size-increase));
  font-weight: 500;
}

.degree {
  font-size: calc(10px + var(--font-size-increase));
  border: 1px solid #d7e2f2;
  padding: 4px 9px;
  color: #6380a5;
  white-space: nowrap;
}

.timeline-detail p {
  font-size: calc(13px + var(--font-size-increase));
  color: var(--body);
  margin-top: 8px;
  line-height: 1.65;
}

.timeline-detail small {
  display: block;
  font-size: calc(10px + var(--font-size-increase));
  color: #8092ab;
  margin-top: 5px;
  line-height: 1.5;
}

.research-section {
  padding: 69px 0 70px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 15px;
}

.research-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 30px;
}

.research-heading h2 {
  font-family: var(--font-family);
  font-size: calc(30px + var(--font-size-increase));
  font-weight: 500;
  letter-spacing: 1px;
}

.research-heading > p {
  font-size: calc(11px + var(--font-size-increase));
  color: #7187a3;
  padding-bottom: 4px;
}

.research-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  background: #193d70;
  color: #f1f6ff;
  padding: 42px;
  gap: 25px;
  position: relative;
  overflow: hidden;
}

.research-feature:hover .project-action {
  gap: 45px;
}

.research-feature:hover .research-art {
  transform: translateX(5px);
}

.project-tag {
  font-size: calc(9px + var(--font-size-increase));
  letter-spacing: 1.7px;
  color: #9eb8df;
}

.research-text h3 {
  font-family: var(--font-family);
  font-size: calc(30px + var(--font-size-increase));
  overflow-wrap: anywhere;
  min-width: 0;
  font-weight: 400;
  margin-top: 18px;
  display: flex;
  gap: 28px;
  align-items: center;
}

.research-text h3 > span {
  font-family: var(--font-family);
  font-size: calc(25px + var(--font-size-increase));
  color: #adc7ed;
}

.research-text p {
  font-size: calc(12px + var(--font-size-increase));
  color: #c1d2ed;
  line-height: 1.9;
  margin-top: 17px;
  max-width: 370px;
}

.project-action {
  display: inline-flex;
  gap: 27px;
  margin-top: 30px;
  font-size: calc(11px + var(--font-size-increase));
  border-bottom: 1px solid #7799c8;
  padding-bottom: 8px;
  transition: gap 0.25s;
}

.research-art {
  align-self: center;
  transition: transform 0.3s;
  min-width: 0;
}

.hobby {
  display: flex;
  align-items: center;
  gap: 20px;
}

.hobby-icon {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border: 1px solid #d7e2f3;
  border-radius: 50%;
  font-family: var(--font-family);
  font-size: calc(37px + var(--font-size-increase));
  color: #416da6;
}

.hobby h3 {
  font-family: var(--font-family);
  font-size: calc(17px + var(--font-size-increase));
  font-weight: 500;
}

.hobby p {
  font-size: calc(10px + var(--font-size-increase));
  color: #7892b1;
  margin-top: 8px;
  letter-spacing: 0.5px;
}

.contact {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: center;
  padding: 53px 0;
}

.contact h2 {
  font-family: var(--font-family);
  font-weight: 500;
  font-size: calc(26px + var(--font-size-increase));
  line-height: 1.6;
}

.contact p {
  font-size: calc(12px + var(--font-size-increase));
  color: #768caa;
  line-height: 1.7;
  margin-top: 13px;
}

.outline {
  border: 1px solid #b5c7e0;
  flex-shrink: 0;
}

.outline:hover {
  background: #eaf1fc;
}

footer {
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 100px;
}

.footer-name {
  font-family: var(--font-family);
  font-size: calc(18px + var(--font-size-increase));
}

.footer-name span {
  font-family: var(--font-family);
  font-size: calc(11px + var(--font-size-increase));
  color: #798fae;
  margin-left: 12px;
}

footer p,
footer > a {
  font-size: calc(10px + var(--font-size-increase));
  color: #788aa5;
  line-height: 1.7;
}

footer > a {
  white-space: nowrap;
}

.skip {
  position: absolute;
  top: -60px;
  left: 20px;
  padding: 12px;
  background: var(--ink);
  color: white;
  z-index: 5;
}

.skip:focus {
  top: 15px;
}

html[lang="en"] .chinese-name {
  font-family: var(--font-family);
  font-size: calc(72px + var(--identity-font-size-increase));
  letter-spacing: -3px;
}

html[lang="en"] .latin-name {
  font-family: var(--font-family);
  font-size: calc(30px + var(--identity-font-size-increase));
  letter-spacing: 5px;
}

html[lang="en"] .nav-wrap {
  gap: 20px;
}

html[lang="en"] nav {
  gap: 20px;
}

html[lang="en"] .section-label h2 {
  letter-spacing: 0;
}

html[lang="en"] .profile-facts {
  grid-template-columns: 1fr 1fr 1.4fr;
}

/* 科学教育：预留“雨理同在”的链接位置。 */
.science-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.science-link {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  padding: 12px 0;
  border-bottom: 1px solid var(--accent);
  color: var(--ink);
  font-size: calc(20px + var(--font-size-increase));
}

.science-link[aria-disabled="true"] {
  cursor: default;
}

.science-link[href]:hover {
  color: var(--accent);
}

.link-pending {
  color: #768caa;
  font-size: calc(10px + var(--font-size-increase));
}

/* 台球赛事荣誉：日期、比赛名称、名次。 */
.honors-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.honors-list li {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  font-size: calc(13px + var(--font-size-increase));
  line-height: 1.8;
}

.honor-date {
  color: #365f95;
  font-size: calc(12px + var(--font-size-increase));
}

.honor-title {
  color: var(--body);
}

.honor-result {
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
}

svg text {
  font-family: var(--font-family);
}

/* 桌面及移动端布局。 */
@media (min-width: 1440px) {
  .header,
  main,
  footer {
    max-width: 1280px;
    padding-left: 64px;
    padding-right: 64px;
  }

  .hero {
    gap: 80px;
  }
}

@media (max-width: 1000px) {
  .header,
  main,
  footer {
    padding-left: 30px;
    padding-right: 30px;
  }

  .hero {
    gap: 30px;
  }

  .chinese-name {
    font-size: calc(64px + var(--identity-font-size-increase));
  }

  .latin-name {
    font-size: calc(36px + var(--identity-font-size-increase));
  }

  .section {
    grid-template-columns: 215px minmax(0, 1fr);
    gap: 25px;
  }

  .timeline-item {
    grid-template-columns: 135px minmax(0, 1fr);
    gap: 18px;
  }

  .research-feature {
    padding: 32px;
  }

  .research-heading {
    align-items: flex-start;
  }

  .research-heading > p {
    max-width: 150px;
    line-height: 1.7;
  }

  .nav-wrap,
  nav {
    gap: 20px;
  }

  html[lang="en"] nav {
    gap: 13px;
  }

  html[lang="en"] nav a {
    font-size: calc(11px + var(--font-size-increase));
  }
}

@media (max-width: 760px) {
  .honors-list li {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 5px 14px;
  }

  .honor-date {
    grid-column: 1 / -1;
  }

  .honor-title {
    grid-column: 1;
  }

  .honor-result {
    grid-column: 2;
  }

  html {
    scroll-padding-top: 90px;
  }

  .header,
  main,
  footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .header {
    height: 82px;
    position: relative;
  }

  .wordmark-text {
    font-size: calc(10px + var(--font-size-increase));
  }

  .monogram {
    font-size: calc(32px + var(--font-size-increase));
  }

  .nav-wrap {
    gap: 18px;
  }

  .language {
    padding-left: 15px;
  }

  .menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 0 8px 6px;
    background: none;
    border: 0;
  }

  .menu span {
    width: 19px;
    height: 1px;
    background: var(--ink);
  }

  nav {
    display: none;
    position: absolute;
    top: 81px;
    left: 0;
    right: 0;
    z-index: 5;
    background: var(--paper);
    padding: 25px 24px;
    box-shadow: 0 10px 15px #17375e08;
    border-bottom: 1px solid var(--line);
    gap: 24px;
  }

  nav.open {
    display: flex;
    flex-direction: column;
  }

  nav a {
    font-size: calc(14px + var(--font-size-increase));
  }

  .hero {
    padding-top: 43px;
    padding-bottom: 38px;
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .hero h1 {
    margin-top: 29px;
  }

  .chinese-name {
    font-size: calc(64px + var(--identity-font-size-increase));
  }

  .latin-name {
    font-size: calc(35px + var(--identity-font-size-increase));
    margin-top: 9px;
  }

  .role {
    margin-top: 18px;
  }

  .hero-note {
    margin-top: 31px;
  }

  .hero-figure {
    max-width: 470px;
    width: 100%;
    justify-self: center;
    transform: none;
    box-shadow: 5px 5px 0 #e8eef8;
  }

  .energy-figure {
    max-height: 370px;
  }

  .discipline-strip {
    gap: 15px;
    flex-wrap: wrap;
    justify-content: flex-start;
    font-size: calc(11px + var(--font-size-increase));
    padding: 21px 0;
  }

  .discipline-strip i {
    font-size: calc(12px + var(--font-size-increase));
  }

  .section {
    padding: 44px 0;
    grid-template-columns: minmax(0, 1fr);
    gap: 25px;
  }

  .section-number {
    font-size: calc(9px + var(--font-size-increase));
    margin-bottom: 10px;
  }

  .section-label h2 {
    font-size: calc(26px + var(--font-size-increase));
  }

  .section-label > p {
    margin-top: 8px;
  }

  .body-copy {
    font-size: calc(13px + var(--font-size-increase));
    margin-top: 0;
  }

  .profile-facts {
    gap: 10px;
  }

  .profile-facts > div {
    padding-left: 10px;
  }

  .profile-facts strong {
    font-size: calc(11px + var(--font-size-increase));
  }

  .timeline-item {
    grid-template-columns: 125px minmax(0, 1fr);
    gap: 12px;
  }

  .timeline-time {
    font-size: calc(11px + var(--font-size-increase));
  }

  .institution h3 {
    font-size: calc(21px + var(--font-size-increase));
  }

  .timeline-detail p {
    font-size: calc(12px + var(--font-size-increase));
  }

  .timeline-detail small {
    font-size: calc(9px + var(--font-size-increase));
  }

  .research-section {
    padding: 44px 0;
  }

  .research-heading {
    display: block;
    margin-bottom: 24px;
  }

  .research-heading h2 {
    font-size: calc(25px + var(--font-size-increase));
  }

  .research-heading > p {
    margin-top: 12px;
    max-width: none;
  }

  .research-feature {
    grid-template-columns: 1fr;
    padding: 29px;
    gap: 21px;
  }

  .research-text h3 {
    font-size: calc(26px + var(--font-size-increase));
  }

  .research-text p {
    max-width: none;
  }

  .research-art {
    margin: 0 -5px;
  }

  .research-art svg {
    max-height: 200px;
  }

  .contact {
    padding: 40px 0;
    display: block;
  }

  .contact h2 {
    font-size: calc(24px + var(--font-size-increase));
  }

  .contact .button {
    margin-top: 23px;
  }

  footer {
    padding-top: 24px;
    padding-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .footer-name {
    width: 70%;
  }

  footer p {
    order: 3;
    width: 100%;
  }

  html[lang="en"] .chinese-name {
    font-size: calc(62px + var(--identity-font-size-increase));
  }

  html[lang="en"] nav a {
    font-size: calc(14px + var(--font-size-increase));
  }

  html[lang="en"] .timeline-item {
    grid-template-columns: 115px minmax(0, 1fr);
  }

  html[lang="en"] .institution h3 {
    font-size: calc(18px + var(--font-size-increase));
  }

  html[lang="en"] .research-heading h2 {
    font-size: calc(26px + var(--font-size-increase));
  }
}

@media (max-width: 380px) {
  .header,
  main,
  footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-actions {
    gap: 16px;
  }

  .button {
    gap: 17px;
    padding: 14px 16px;
  }

  .chinese-name {
    font-size: calc(58px + var(--identity-font-size-increase));
  }

  .profile-facts {
    grid-template-columns: 1fr 1fr;
  }

  .profile-facts > div:last-child {
    grid-column: 1/-1;
    border: 0;
    padding-left: 0;
    margin-top: 12px;
  }

  .timeline-item {
    grid-template-columns: 108px minmax(0, 1fr);
  }

  .institution h3 {
    font-size: calc(19px + var(--font-size-increase));
  }

  .degree {
    padding: 3px 6px;
  }

  .research-feature {
    padding: 24px;
  }
}

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

  *,
  *:before,
  *:after {
    transition: none !important;
    animation: none !important;
  }
}