@import url("https://fonts.googleapis.com/css2?family=LXGW+WenKai&text=%E4%B8%81%E4%B9%BE%E8%88%AA&display=swap");

:root {
  --page: #f2f0eb;
  --paper: #fffefa;
  --ink: #232323;
  --muted: #73706a;
  --line: #d8d4cc;
  --accent: #315d78;
}

* { box-sizing: border-box; }

html {
  background: var(--page);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: "Times New Roman", Times, serif;
  text-rendering: optimizeLegibility;
}

#a {
  width: min(980px, calc(100% - 40px));
  height: auto;
  min-height: 100vh;
  margin: 0 auto;
  padding: 52px 64px 88px;
  background: var(--paper);
  box-shadow: 0 0 36px rgba(40, 38, 34, 0.08);
}

.site-header { padding-bottom: 22px; }
.site-header .chinesetitle { display: block; letter-spacing: -0.02em; }
.site-header .chinese1 {
  font-family: STKaiti, "Kaiti SC", "STKaiti-SC-Regular", "LXGW WenKai", KaiTi, "楷体", "KaiTi_GB2312", "DFKai-SB", cursive;
  font-style: normal;
  font-weight: 400;
  font-synthesis: none;
}
.site-header .secondarytitle {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 25px;
}

#b {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(14px, 2vw, 28px);
  width: 100%;
  height: auto;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  line-height: normal;
}

#b .a1, #b .a1:link, #b .a1:visited {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.055em;
}

#b .a1:last-child { margin-left: 0; }
#b .a1:hover, #b .a1:focus-visible, #b .a1[aria-current="page"] { color: var(--ink); }

#b .a1[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
}

#b + hr { display: none; }
a:focus-visible { border-radius: 2px; outline: 2px solid var(--accent); outline-offset: 3px; }

#c, #cmb, #pikapika, #zhihu, #montage, #tank, #pic {
  width: 100%;
  height: auto;
}

#a #c p, #a p.content, #a .lineawards { line-height: 1.65; }

#a h2 {
  margin: 46px 0 18px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  font-size: 25px;
  font-weight: normal;
}

#a h3 { margin: 28px 0 8px; color: var(--muted); font-size: 18px; }
#a hr { height: 1px; border: 0; background: var(--line); }

.information1, .email, .link1,
.information1:visited, .email:visited, .link1:visited {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.information1:hover, .email:hover, .link1:hover { text-decoration: underline; }
#a img { max-width: 100%; height: auto; }

/* Override the legacy two-ID float rule so section text always starts below media. */
#a #c img { float: none; }

.home-page #c { padding-top: 30px; }
.home-page #c > h2 + hr { display: none; }
.home-page .profile-layout {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}
.home-page .profile-photo img {
  display: block;
  width: 100%;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
}
.home-page .profile-copy > p:first-child { margin-top: 0; }
.home-page .contact-block h3 { margin-top: 24px; }
.home-page .contact-block p { margin-bottom: 0; }

.research-page #c, .talk-page #c { padding-top: 10px; }
.research-page #c > p:not(.content) { margin: 30px 0 0; }
.research-page #c > p:not(.content) img {
  float: none;
  display: block;
  width: min(640px, 100%);
  margin: 0;
  border: 1px solid var(--line);
}
.research-page #c > p:not(.content) + p.content {
  margin-top: 0;
  padding: 18px 0 30px;
  border-bottom: 1px solid var(--line);
}
.research-page p.content b:first-child { font-size: 17px; }

/* Keep wrapped publication titles aligned after their bracketed number. */
.research-page #c > h2:nth-of-type(2) ~ p.content {
  padding-left: 2em;
  text-indent: -2em;
}

.talk-page #c > p.content {
  position: relative;
  min-height: 88px;
  margin: 0 0 12px;
  padding: 17px 130px 17px 20px;
  border-left: 3px solid #aabcc6;
  background: #faf9f5;
}
.talk-page .talkstitle { color: #353535; }
.talk-page .talksdate {
  position: absolute;
  top: 18px;
  right: 18px;
  float: none;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.programming-page #c, .programming-page #cmb, .programming-page #pikapika,
.programming-page #zhihu, .programming-page #montage, .programming-page #tank {
  clear: both;
  display: flow-root;
  margin-top: 24px;
  padding: 24px 26px;
  border: 1px solid var(--line);
  background: #faf9f5;
}
.programming-page #c { margin-top: 34px; }
.programming-page #c h2 { margin-top: 0; }
.programming-page img {
  display: inline-block;
  margin: 8px 12px 8px 0;
  vertical-align: top;
}

.universe-page #c { margin-top: 30px; }
.universe-page #c img {
  float: none;
  display: block;
  width: min(700px, 100%);
  margin: 0 auto;
  border: 1px solid var(--line);
}
.universe-page #c + #c {
  margin-top: 20px;
  padding: 22px 26px;
  border-left: 3px solid #aabcc6;
  background: #faf9f5;
}
.universe-page #c + #c p:last-child { margin-bottom: 0; }

@media screen and (max-width: 780px) {
  #a { width: 100%; padding: 28px 20px 56px; box-shadow: none; }
  .site-header { padding-bottom: 16px; }
  .site-header .chinesetitle, .site-header .chinese1 { font-size: clamp(29px, 9vw, 36px); }
  .site-header .secondarytitle { font-size: clamp(21px, 6.5vw, 25px); }

  #b {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 18px;
    padding: 7px 0;
  }
  #b .a1, #b .a1:link, #b .a1:visited {
    min-height: 42px;
    overflow: visible;
    font-size: 14px;
    line-height: 1.15;
    white-space: normal;
  }
  #b .a1:last-child { margin-left: 0; }
  #b .a1[aria-current="page"]::after { right: auto; width: 34px; }
  #a h2 { margin-top: 38px; }

  .home-page #c { padding-top: 24px; }
  .home-page .profile-layout {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .home-page .profile-photo {
    width: min(300px, 78vw);
    margin: 0 auto;
  }
  .research-page #c > p:not(.content) + p.content { padding-top: 14px; }
  .talk-page #c > p.content { min-height: 0; padding: 16px 18px; }
  .talk-page .talksdate { position: static; display: block; margin-top: 7px; }
  .programming-page #c, .programming-page #cmb, .programming-page #pikapika,
  .programming-page #zhihu, .programming-page #montage, .programming-page #tank { padding: 20px; }
  .programming-page img { display: block; margin: 12px auto; }
}

@media screen and (max-width: 420px) {
  #b { grid-template-columns: 1fr; }
  #b .a1, #b .a1:link, #b .a1:visited { min-height: 38px; }
}