:root {
  --ink: #111111;
  --text: #333333;
  --muted: #666666;
  --faint: #8a8a8a;
  --line: #d7d7d7;
  --soft: #f5f5f5;
  --blue: #004099;
  --serif: "Times New Roman", "Noto Serif CJK SC", "Source Han Serif SC", SimSun, serif;
  --sans: Arial, "Noto Sans CJK SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: #001f55; text-decoration: underline; }
.page { width: min(1180px, calc(100% - 56px)); margin: 0 auto; display: grid; grid-template-columns: 215px minmax(0, 1fr); gap: 72px; }

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 52px 0 32px;
  border-right: 1px solid var(--line);
  overflow-y: auto;
}
.portrait { width: 145px; height: 178px; display: grid; place-items: center; background: #e7e7e7; color: #777; border: 1px solid #ccc; font: 36px var(--serif); letter-spacing: .06em; }
.portrait:hover { text-decoration: none; color: #555; }
.portrait img { width: 100%; height: 100%; object-fit: cover; filter: none; }
.identity { margin-top: 24px; padding-right: 27px; }
.identity h1 { margin: 0; color: var(--ink); font: bold 27px/1.1 var(--serif); }
.name-cn { margin: 4px 0 17px; color: var(--muted); font-family: var(--serif); }
.role { margin: 0 0 14px; color: var(--ink); font-size: 13px; font-weight: bold; line-height: 1.45; }
.affiliation { color: var(--muted); font-size: 12px; line-height: 1.55; }
.side-nav { margin: 28px 27px 0 0; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.side-nav a { padding: 4px 0; color: var(--text); font-size: 12px; }
.side-nav a:hover { color: var(--blue); text-decoration: none; }
.profile-links { margin-top: 18px; display: flex; flex-direction: column; align-items: flex-start; gap: 3px; font-size: 12px; }
.updated { position: absolute; bottom: 23px; margin: 0; color: var(--faint); font-size: 10px; }

.content { min-width: 0; padding: 68px 0 40px; }
.section { padding: 0 0 60px; margin-bottom: 59px; border-bottom: 1px solid var(--line); scroll-margin-top: 35px; }
.section h2 { margin: 0 0 26px; color: var(--ink); font: bold 27px/1.2 var(--serif); }
.section h3 { color: var(--ink); }
.kicker { margin: 0 0 15px; color: var(--blue); font: italic 17px var(--serif); }
.intro h2 { font-size: 38px; margin-bottom: 29px; }
.intro-grid { display: grid; grid-template-columns: 1.35fr .85fr; gap: 40px; }
.intro-grid p { margin-top: 0; }
.intro strong { color: var(--ink); }
.intro-cn { padding-left: 25px; border-left: 2px solid #e2e2e2; color: var(--muted); font-size: 13px; line-height: 1.75; }
.notice { margin: 24px 0 0; padding: 12px 15px; background: var(--soft); border-left: 3px solid var(--blue); font-size: 13px; }

.interest-list { display: grid; grid-template-columns: 1fr 1fr; column-gap: 44px; row-gap: 26px; }
.interest-list article { border-top: 1px solid var(--ink); padding-top: 10px; }
.interest-list h3 { margin: 0 0 6px; font: bold 17px var(--serif); }
.interest-list p { margin: 0; color: var(--muted); font-size: 13px; }
.section-title-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 30px; }
.section-title-row h2 { margin-bottom: 0; }
.section-title-row > p { margin: 0; color: var(--faint); font: italic 13px var(--serif); }

.project { display: grid; grid-template-columns: 250px minmax(0,1fr); gap: 27px; padding: 28px 0; border-top: 1px solid var(--line); }
.project:first-of-type { border-top-color: var(--ink); }
.project-figure { width: 250px; aspect-ratio: 16 / 9.5; margin: 0; border: 1px solid #ccc; align-self: start; overflow: hidden; background: #f6f6f6; }
.project-figure img { width: 100%; height: 100%; display: block; object-fit: cover; }
.project-body header { margin-bottom: 11px; }
.project-body h3 { margin: 0 0 3px; font: bold 20px/1.25 var(--serif); }
.project-meta { margin: 0; color: var(--muted); font-size: 11px; }
.project-body > p { margin: 0 0 13px; font-size: 13px; }
.project-body dl { margin: 13px 0; }
.project-body dl div { display: grid; grid-template-columns: 128px 1fr; border-top: 1px dotted #bbb; padding: 7px 0; font-size: 12px; line-height: 1.55; }
.project-body dl div:last-child { border-bottom: 1px dotted #bbb; }
.project-body dt { color: var(--ink); font-weight: bold; }
.project-body dd { margin: 0; }
.project-body .tech { color: var(--muted); font-size: 11px; }
.project-body .tech strong { color: var(--text); }
.project-links { display: flex; flex-wrap: wrap; gap: 18px; }
.project-links a, .row-link { font-size: 12px; }
.project-links a::after, .row-link::after { content: " ↗"; font-size: 10px; }
.placeholder-note { padding: 12px 14px; border: 1px solid #d9d9d9; background: #fafafa; color: var(--muted); font-size: 11px; }

.software-list { border-top: 1px solid var(--ink); }
.software-list article { display: grid; grid-template-columns: 180px 1fr 130px 145px; gap: 18px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.software-list h3, .software-list p { margin: 0; }
.software-list h3 { font: bold 16px var(--serif); }
.software-list p { font-size: 12px; }
.software-list span { color: var(--muted); font-size: 10px; }
.note-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.note-list li { display: grid; grid-template-columns: 80px 1fr 40px; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.note-list time, .note-list li > span { color: var(--muted); font-size: 10px; }
.note-list a { font: bold 16px var(--serif); }
.note-list p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.case-list li { grid-template-columns: 86px 1fr 44px; padding: 18px 0; }
.case-list time { color: var(--blue); font-weight: bold; letter-spacing: .05em; text-transform: uppercase; }
.case-tags { color: var(--faint) !important; font-size: 10px !important; letter-spacing: .02em; text-transform: uppercase; }

.case-page .page { max-width: 1040px; }
.case-page .sidebar { padding-top: 48px; }
.case-page .content { padding-top: 60px; }
.case-back { color: var(--muted); font-size: 12px; }
.case-hero { padding-bottom: 46px; }
.case-hero h2 { margin: 10px 0 13px; font-size: 38px; }
.case-summary { max-width: 760px; color: var(--text); font-size: 16px; }
.case-meta { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.case-meta span { border: 1px solid var(--line); padding: 3px 8px; color: var(--muted); font-size: 10px; letter-spacing: .04em; text-transform: uppercase; }
.case-report-link { display: inline-block; margin-top: 20px; padding: 7px 16px; border: 1px solid var(--blue); color: var(--blue); font-size: 13px; letter-spacing: .02em; }
.case-report-link:hover { background: var(--blue); color: #fff; }
.case-section { margin-bottom: 35px; }
.case-section h3 { margin: 0 0 10px; font: bold 20px/1.25 var(--serif); }
.case-section p { margin: 0 0 11px; max-width: 780px; }
.case-points { margin: 0; padding-left: 18px; max-width: 780px; }
.case-points li { margin-bottom: 6px; }
.case-figures { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 16px; }
.case-figures figure { margin: 0; border: 1px solid var(--line); background: #fafafa; }
.case-figures img { display: block; width: 100%; height: auto; }
.case-figures figcaption { padding: 8px 10px; color: var(--muted); font-size: 11px; }

.report-page .case-hero { margin-bottom: 34px; }
.report-toc { margin: -18px 0 40px; padding: 18px 22px; border: 1px solid var(--line); background: #fafafa; }
.report-toc h3 { margin: 0 0 9px; color: var(--ink); font: bold 18px/1.25 var(--serif); }
.report-toc ul { margin: 0; padding-left: 20px; columns: 2; column-gap: 34px; }
.report-toc li { break-inside: avoid; margin: 0 0 3px; font-size: 12px; }
.report-body { max-width: 820px; }
.report-body h2 { margin: 42px 0 14px; padding-top: 8px; border-top: 1px solid var(--line); color: var(--ink); font: bold 24px/1.25 var(--serif); }
.report-body h3 { margin: 30px 0 10px; color: var(--ink); font: bold 19px/1.3 var(--serif); }
.report-body h4 { margin: 22px 0 8px; color: var(--ink); font-size: 15px; }
.report-body p { margin: 0 0 13px; }
.report-body blockquote { margin: 0 0 22px; padding: 10px 16px; border-left: 3px solid var(--blue); background: var(--soft); color: var(--muted); }
.report-body table { width: 100%; margin: 16px 0 24px; border-collapse: collapse; font-size: 12px; }
.report-body th, .report-body td { padding: 7px 9px; border: 1px solid var(--line); vertical-align: top; }
.report-body th { background: var(--soft); color: var(--ink); text-align: left; }
.report-body img { display: block; max-width: 100%; height: auto; margin: 18px auto; border: 1px solid var(--line); background: #fafafa; }
.report-body code { padding: 1px 4px; background: var(--soft); font-family: Consolas, "Courier New", monospace; font-size: .92em; }
.report-body pre { overflow-x: auto; padding: 12px 14px; background: #f7f7f7; border: 1px solid var(--line); }
.report-body pre code { padding: 0; background: transparent; }

.timeline { border-top: 1px solid var(--ink); }
.timeline > div { display: grid; grid-template-columns: 140px 1fr; padding: 13px 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--muted); font-size: 11px; }
.timeline p { margin: 0; font-size: 13px; }
.timeline span { color: var(--muted); }
.contact { margin-bottom: 28px; padding-bottom: 38px; }
.contact p { max-width: 650px; }
footer { color: var(--faint); font-size: 10px; }

@media (max-width: 900px) {
  .page { width: min(100% - 40px, 720px); display: block; }
  .sidebar { position: relative; height: auto; overflow: visible; padding: 34px 0 25px; border-right: 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 115px 1fr; column-gap: 22px; }
  .portrait { width: 115px; height: 140px; grid-row: 1 / 3; }
  .identity { margin: 0; padding: 0; }
  .identity h1 { font-size: 25px; }
  .side-nav { grid-column: 1 / -1; margin: 23px 0 0; padding: 11px 0; flex-direction: row; flex-wrap: wrap; gap: 4px 20px; }
  .profile-links { grid-column: 1 / -1; margin-top: 11px; flex-direction: row; flex-wrap: wrap; gap: 15px; }
  .updated { display: none; }
  .content { padding-top: 45px; }
  .intro-grid { grid-template-columns: 1fr; gap: 15px; }
  .intro-cn { padding: 0; border: 0; }
  .project { grid-template-columns: 210px minmax(0,1fr); gap: 22px; }
  .project-figure { width: 210px; }
  .project-body dl div { grid-template-columns: 1fr; gap: 2px; }
  .software-list article { grid-template-columns: 155px 1fr; }
  .software-list span { grid-column: 1; }.software-list .row-link { grid-column: 2; }
  .case-page .content { padding-top: 45px; }
  .case-figures { grid-template-columns: 1fr; }
  .report-toc ul { columns: 1; }
}

@media (max-width: 620px) {
  body { font-size: 14px; }
  .page { width: calc(100% - 30px); }
  .sidebar { grid-template-columns: 88px 1fr; column-gap: 17px; }
  .portrait { width: 88px; height: 108px; font-size: 25px; }
  .identity h1 { font-size: 22px; }.name-cn { margin-bottom: 9px; }.affiliation { display: none; }
  .side-nav { gap: 3px 14px; }.side-nav a { font-size: 11px; }
  .content { padding-top: 38px; }.section { margin-bottom: 42px; padding-bottom: 43px; }
  .intro h2 { font-size: 32px; }.section h2 { font-size: 24px; }
  .interest-list { grid-template-columns: 1fr; }
  .section-title-row { display: block; }.section-title-row > p { margin-top: 5px; }
  .project { grid-template-columns: 1fr; gap: 17px; padding: 25px 0; }
  .project-figure { width: min(100%, 320px); }
  .project-body h3 { font-size: 19px; }
  .software-list article { grid-template-columns: 1fr; gap: 5px; }.software-list span,.software-list .row-link { grid-column: 1; }
  .note-list li { grid-template-columns: 60px 1fr; gap: 12px; }.note-list li > span { display: none; }
  .case-list li { grid-template-columns: 1fr; gap: 5px; }
  .case-hero h2 { font-size: 30px; }
  .case-summary { font-size: 14px; }
  .timeline > div { grid-template-columns: 100px 1fr; }
}

@media print {
  .page { width: 100%; grid-template-columns: 175px 1fr; gap: 35px; }
  .sidebar { position: static; height: auto; border-right: 1px solid #bbb; }
  .side-nav, .updated { display: none; }
  .content { padding-top: 45px; }
  a { color: #111; }
  .section { break-inside: avoid; }
}