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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Han Zhang · Observability, Situational Awareness & Security for Testbeds & AI Data Centers · Tsinghua</title>
<meta name="description" content="Han Zhang (张晗), Associate Professor at the Institute for Network Sciences and Cyberspace, Tsinghua University. Observability, situational awareness, and security infrastructure for national-scale network testbeds and operational AI / data-center infrastructures, with a new thrust on Secure & Trustworthy Robotics." />
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Lora:ital,wght@0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.5.0/css/all.min.css">
<style>
:root {
--c-bg: #fbfaf7;
--c-paper: #ffffff;
--c-ink: #1a1a1a;
--c-ink-soft: #4a4a4a;
--c-muted: #7a7670;
--c-line: #e8e4dc;
--c-line-soft: #f0ece4;
--c-accent: #6b1f1f; /* Tsinghua紫 / 学术红 */
--c-accent-soft: #f3e9e7;
--c-link: #878787;
--c-link-hover: #8a2a2a;
--c-tag-bg: #efeae0;
--c-highlight: #fef9c3;
--shadow-sm: 0 1px 2px rgba(20,15,10,.04), 0 1px 1px rgba(20,15,10,.03);
--shadow-md: 0 4px 16px rgba(20,15,10,.06), 0 2px 4px rgba(20,15,10,.04);
--shadow-lg: 0 12px 40px rgba(20,15,10,.08), 0 4px 12px rgba(20,15,10,.05);
--radius: 10px;
--maxw: 1080px;
--serif: 'Lora', 'Source Serif Pro', Georgia, serif;
--sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
--mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
margin: 0;
background: var(--c-bg);
color: var(--c-ink);
font-family: var(--sans);
font-size: 15.5px;
line-height: 1.65;
-webkit-font-smoothing: antialiased;
}
a { color: var(--c-link); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--c-link-hover); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
/* ─── Top Nav ────────────────────────────────────────────── */
.topnav {
position: sticky; top: 0; z-index: 50;
background: rgba(251,250,247,.92);
backdrop-filter: saturate(180%) blur(12px);
-webkit-backdrop-filter: saturate(180%) blur(12px);
border-bottom: 1px solid var(--c-line);
}
.topnav-inner {
max-width: var(--maxw); margin: 0 auto; padding: 14px 28px;
display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
/* Language switcher pill */
.lang-toggle {
display: inline-flex; border: 1px solid var(--c-line); border-radius: 999px;
overflow: hidden; background: #fff; flex-shrink: 0;
}
.lang-toggle .lang-btn {
padding: 4px 12px; font-size: 12.5px; font-weight: 600;
color: var(--c-ink-soft); text-decoration: none; cursor: pointer;
line-height: 1.4; transition: background .15s ease, color .15s ease;
}
.lang-toggle .lang-btn + .lang-btn { border-left: 1px solid var(--c-line); }
.lang-toggle .lang-btn:hover { background: var(--c-bg); color: var(--c-ink); text-decoration: none; }
.lang-toggle .lang-btn.active {
background: var(--c-accent); color: #fff; cursor: default;
}
.brand {
font-family: var(--serif);
font-weight: 600; font-size: 18px; letter-spacing: .2px;
color: var(--c-ink); text-decoration: none;
}
.brand .dot { color: var(--c-accent); }
.nav-links { display: flex; gap: 2px; flex-wrap: nowrap; }
.nav-links a {
color: var(--c-ink-soft); font-size: 13px; font-weight: 500;
padding: 5px 9px; border-radius: 6px; text-decoration: none; white-space: nowrap;
}
.nav-links a:hover { background: var(--c-line-soft); color: var(--c-accent); text-decoration: none; }
/* ─── Hero banner (full-width subtle network pattern) ────── */
.hero-banner {
position: relative;
background: linear-gradient(135deg, #fbfaf7 0%, #f5f1e8 50%, #efeae0 100%);
border-bottom: 1px solid var(--c-line);
overflow: hidden;
}
.hero-banner::before {
content: ""; position: absolute; inset: 0;
background-image:
radial-gradient(circle at 12% 25%, var(--c-accent) 1.5px, transparent 2px),
radial-gradient(circle at 28% 65%, var(--c-accent) 1.5px, transparent 2px),
radial-gradient(circle at 45% 30%, var(--c-accent) 1.5px, transparent 2px),
radial-gradient(circle at 62% 70%, var(--c-accent) 1.5px, transparent 2px),
radial-gradient(circle at 78% 25%, var(--c-accent) 1.5px, transparent 2px),
radial-gradient(circle at 92% 60%, var(--c-accent) 1.5px, transparent 2px),
linear-gradient(115deg, transparent 0%, transparent 28%, rgba(107,31,31,0.06) 28.3%, rgba(107,31,31,0.06) 28.5%, transparent 28.8%),
linear-gradient(155deg, transparent 0%, transparent 45%, rgba(107,31,31,0.05) 45.2%, rgba(107,31,31,0.05) 45.4%, transparent 45.7%),
linear-gradient(85deg, transparent 0%, transparent 62%, rgba(107,31,31,0.05) 62.2%, rgba(107,31,31,0.05) 62.4%, transparent 62.7%);
opacity: .55;
pointer-events: none;
}
.hero-banner::after {
content: ""; position: absolute; right: -120px; top: -80px;
width: 380px; height: 380px;
background: radial-gradient(circle, rgba(107,31,31,0.10) 0%, transparent 70%);
pointer-events: none;
}
/* ─── Hero ───────────────────────────────────────────────── */
.hero {
position: relative; z-index: 1;
max-width: var(--maxw); margin: 0 auto;
padding: 56px 28px 40px;
display: grid; grid-template-columns: 1fr 220px; gap: 48px; align-items: start;
}
.hero h1 {
font-family: var(--serif);
font-size: 46px; font-weight: 600;
letter-spacing: -.5px; line-height: 1.1; margin: 0 0 8px;
}
.hero h1 .zh {
font-size: 28px; color: var(--c-muted); font-weight: 500; margin-left: 12px; letter-spacing: 0;
}
.hero .title {
font-size: 17px; color: var(--c-ink-soft); margin: 0 0 4px;
}
.hero .affil {
font-size: 15px; color: var(--c-muted); margin: 0 0 20px;
}
.hero .affil a { color: var(--c-ink-soft); border-bottom: 1px dotted var(--c-muted); }
.hero .affil a:hover { color: var(--c-accent); border-color: var(--c-accent); text-decoration: none; }
.contact-row {
display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px;
}
.contact-row a {
display: inline-flex; align-items: center; gap: 7px;
padding: 6px 12px; font-size: 13.5px;
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: 999px; color: var(--c-ink-soft);
text-decoration: none; transition: all .15s ease;
}
.contact-row a:hover {
background: var(--c-accent); color: #fff; border-color: var(--c-accent);
transform: translateY(-1px); box-shadow: var(--shadow-sm);
}
.contact-row a i { font-size: 13px; }
.hero-photo, .hero-photo-fallback {
width: 200px; height: 240px; object-fit: cover;
border-radius: 6px;
box-shadow: var(--shadow-md);
border: 1px solid var(--c-line);
display: block;
}
.hero-photo-fallback {
background: linear-gradient(135deg, var(--c-accent) 0%, #8a2a2a 100%);
color: #fff;
display: flex; align-items: center; justify-content: center;
font-family: var(--serif); font-weight: 700;
font-size: 64px; letter-spacing: -2px;
user-select: none;
}
.hero-photo-wrap {
position: relative;
}
.hero-photo-wrap::before {
content: ""; position: absolute;
inset: 12px -12px -12px 12px;
background: var(--c-accent-soft);
border-radius: 6px; z-index: -1;
}
/* ─── Section / Container ────────────────────────────────── */
.section {
max-width: var(--maxw); margin: 0 auto; padding: 28px 28px 12px;
}
.section h2 {
font-family: var(--serif);
font-size: 26px; font-weight: 600;
margin: 32px 0 18px;
padding-bottom: 8px;
border-bottom: 2px solid var(--c-line);
display: flex; align-items: center; gap: 12px;
scroll-margin-top: 80px;
}
.section h2 .icon {
color: var(--c-accent); font-size: 20px;
}
.section h3 {
font-family: var(--serif);
font-size: 18px; font-weight: 600;
color: var(--c-accent); margin: 24px 0 12px;
}
/* ─── About text ─────────────────────────────────────────── */
.about p {
margin: 0 0 14px; color: var(--c-ink); text-align: justify; hyphens: auto;
}
.callout {
background: linear-gradient(135deg, #fef9c3 0%, #fef3c7 100%);
border-left: 4px solid #d97706;
padding: 14px 18px;
border-radius: 4px;
margin: 18px 0;
font-size: 14.5px;
color: #78350f;
}
.callout::before {
content: "📢 "; margin-right: 4px;
}
/* ─── Research areas (cards) ─────────────────────────────── */
.research-grid {
display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 8px;
}
.research-card {
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 20px 22px;
box-shadow: var(--shadow-sm);
transition: box-shadow .2s ease, transform .2s ease;
}
.research-card:hover {
box-shadow: var(--shadow-md); transform: translateY(-2px);
}
.research-card .area-title {
font-family: var(--serif); font-weight: 600; font-size: 17px;
color: var(--c-accent); margin-bottom: 10px;
display: flex; align-items: center; gap: 8px;
}
.research-card p {
margin: 0; font-size: 14px; color: var(--c-ink-soft); line-height: 1.65;
}
.venue-tag {
display: inline-block; font-family: var(--mono); font-size: 11px;
font-weight: 500; padding: 1px 6px; margin: 0 2px;
background: var(--c-tag-bg); color: var(--c-ink-soft);
border-radius: 3px; text-decoration: none !important;
border: 1px solid transparent; transition: all .15s ease;
}
.venue-tag:hover {
background: var(--c-accent); color: #fff !important;
}
/* ─── Research Vision (framework figure) ─────────────────── */
.vision-wrap {
background: linear-gradient(180deg, var(--c-paper) 0%, #fdfbf6 100%);
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 24px 22px 20px;
box-shadow: var(--shadow-sm);
margin-top: 6px;
}
.vision-lead {
font-family: var(--serif);
font-size: 17px; font-style: italic;
color: var(--c-ink-soft);
text-align: center;
line-height: 1.6;
max-width: 1000px; margin: 0 auto 22px;
padding: 0 8px;
}
.vision-fig {
display: grid;
grid-template-columns: 1fr 36px 1.2fr 36px 1fr;
gap: 8px; align-items: stretch;
margin: 8px 0 16px;
}
.vision-col {
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: 8px;
padding: 14px 14px 12px;
display: flex; flex-direction: column;
}
.vision-col.input { border-top: 3px solid #6b7280; }
.vision-col.stack { border-top: 3px solid var(--c-accent); background: linear-gradient(180deg, #fef9f7 0%, #fff 100%); }
.vision-col.output { border-top: 3px solid #047857; }
.vision-col .col-head {
font-family: var(--mono); font-size: 10.5px;
text-transform: uppercase; letter-spacing: .8px;
color: var(--c-muted); margin-bottom: 4px;
}
.vision-col .col-title {
font-family: var(--serif); font-weight: 600;
font-size: 14.5px; color: var(--c-ink);
margin-bottom: 10px; line-height: 1.3;
}
.vision-col ul {
margin: 0; padding: 0; list-style: none;
font-size: 12.5px; line-height: 1.7;
color: var(--c-ink-soft);
}
.vision-col ul li {
padding: 2px 0;
border-bottom: 1px dashed var(--c-line-soft);
}
.vision-col ul li:last-child { border-bottom: 0; }
.vision-col ul li b { color: var(--c-ink); font-weight: 600; }
.vision-col.stack ul li {
padding: 4px 6px; margin: 2px 0;
background: var(--c-accent-soft);
border-radius: 4px; border-bottom: 0;
}
.vision-col.stack ul li b { color: var(--c-accent); }
.vision-arrow {
display: flex; align-items: center; justify-content: center;
color: var(--c-accent); font-size: 20px;
font-weight: 700;
}
.vision-pillars {
display: grid; grid-template-columns: repeat(4, 1fr);
gap: 10px; margin-top: 10px;
}
@media (max-width: 980px) {
.vision-pillars { grid-template-columns: repeat(2, 1fr); }
}
.vision-pillar {
background: var(--c-bg);
border-left: 3px solid var(--c-accent);
padding: 10px 12px;
font-size: 12.5px;
line-height: 1.55;
color: var(--c-ink-soft);
border-radius: 0 4px 4px 0;
}
.vision-pillar b {
display: block;
color: var(--c-ink);
font-family: var(--serif);
font-size: 13.5px; font-weight: 600;
margin-bottom: 3px;
}
@media (max-width: 800px) {
.vision-fig {
grid-template-columns: 1fr;
gap: 4px;
}
.vision-arrow { transform: rotate(90deg); height: 24px; }
.vision-pillars { grid-template-columns: 1fr; }
}
/* ─── Member avatar wall ─────────────────────────────────── */
.members-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
gap: 14px; margin-top: 10px;
}
.member-card {
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 14px 10px 12px;
text-align: center;
transition: transform .15s ease, box-shadow .2s ease, border-color .15s ease;
}
.member-card:hover {
transform: translateY(-2px);
box-shadow: var(--shadow-md);
border-color: var(--c-accent);
}
.member-avatar {
width: 62px; height: 62px;
border-radius: 50%;
margin: 0 auto 8px;
display: flex; align-items: center; justify-content: center;
font-family: var(--serif);
font-weight: 700; font-size: 22px;
color: #fff;
letter-spacing: -.5px;
box-shadow: var(--shadow-sm);
border: 2px solid #fff;
outline: 1px solid var(--c-line);
}
/* 8 deterministic avatar colors */
.member-avatar.c0 { background: linear-gradient(135deg, #6b1f1f 0%, #8a2a2a 100%); }
.member-avatar.c1 { background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%); }
.member-avatar.c2 { background: linear-gradient(135deg, #047857 0%, #10b981 100%); }
.member-avatar.c3 { background: linear-gradient(135deg, #b45309 0%, #d97706 100%); }
.member-avatar.c4 { background: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 100%); }
.member-avatar.c5 { background: linear-gradient(135deg, #0e7490 0%, #06b6d4 100%); }
.member-avatar.c6 { background: linear-gradient(135deg, #be123c 0%, #e11d48 100%); }
.member-avatar.c7 { background: linear-gradient(135deg, #374151 0%, #6b7280 100%); }
.member-card .mname {
font-family: var(--serif); font-weight: 600;
font-size: 14px; color: var(--c-ink);
line-height: 1.3; margin-bottom: 3px;
display: block;
}
.member-card .mrole {
font-family: var(--mono); font-size: 10.5px;
color: var(--c-accent); font-weight: 600;
letter-spacing: .3px; margin-bottom: 2px;
display: block;
}
.member-card .mmeta {
font-size: 11px; color: var(--c-muted);
line-height: 1.4;
display: block;
}
.member-card .mpub {
margin-top: 6px; padding-top: 6px;
border-top: 1px dashed var(--c-line-soft);
font-family: var(--mono); font-size: 10px;
color: var(--c-ink-soft);
}
/* ─── Resources cards ────────────────────────────────────── */
.resources-grid {
display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
gap: 14px; margin-top: 8px;
}
.resource-card {
background: var(--c-paper);
border: 1px solid var(--c-line);
border-left: 4px solid var(--c-accent);
border-radius: var(--radius);
padding: 14px 16px 14px;
transition: all .15s ease;
}
.resource-card:hover {
box-shadow: var(--shadow-md);
transform: translateY(-2px);
}
.resource-card .rkind {
font-family: var(--mono); font-size: 10.5px;
color: var(--c-accent); font-weight: 600;
letter-spacing: .5px; text-transform: uppercase;
margin-bottom: 4px;
}
.resource-card .rname {
font-family: var(--serif); font-weight: 600;
font-size: 15.5px; color: var(--c-ink);
margin-bottom: 4px; line-height: 1.3;
}
.resource-card .rdesc {
font-size: 12.5px; color: var(--c-ink-soft);
line-height: 1.5; margin: 0 0 10px;
}
.resource-card .rlinks {
display: flex; flex-wrap: wrap; gap: 6px;
}
.resource-card .rlinks a {
display: inline-flex; align-items: center; gap: 5px;
font-size: 12px; padding: 3px 9px;
border: 1px solid var(--c-line); border-radius: 4px;
color: var(--c-link); background: var(--c-bg);
text-decoration: none;
}
.resource-card .rlinks a:hover {
background: var(--c-accent); color: #fff; border-color: var(--c-accent);
}
/* ─── Publications ───────────────────────────────────────── */
.pub-controls {
display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
margin: 8px 0 18px;
}
.pub-filter {
display: inline-flex; gap: 4px; flex-wrap: wrap;
background: var(--c-paper); border: 1px solid var(--c-line);
padding: 4px; border-radius: 8px;
}
.pub-filter button {
background: transparent; border: 0; cursor: pointer;
font: inherit; font-size: 13px; font-weight: 500;
padding: 5px 12px; border-radius: 5px;
color: var(--c-ink-soft); transition: all .15s ease;
}
.pub-filter button:hover { color: var(--c-accent); }
.pub-filter button.active {
background: var(--c-accent); color: #fff;
}
.gscholar-link {
margin-left: auto;
font-size: 13px; display: inline-flex; align-items: center; gap: 6px;
}
.pub-year-block { margin-bottom: 24px; }
.pub-year-label {
font-family: var(--serif);
font-size: 22px; font-weight: 600;
color: var(--c-accent);
border-left: 4px solid var(--c-accent);
padding-left: 12px;
margin: 18px 0 12px;
}
.pub-list { list-style: none; padding: 0; margin: 0; }
.pub-item {
display: grid; grid-template-columns: 32px 1fr; gap: 10px;
padding: 10px 4px;
border-bottom: 1px dashed var(--c-line-soft);
font-size: 14.5px; line-height: 1.6;
}
.pub-item:last-child { border-bottom: 0; }
.pub-num {
font-family: var(--mono); font-size: 12px; color: var(--c-muted);
padding-top: 3px;
}
.pub-content { color: var(--c-ink); }
.pub-content b { color: var(--c-accent); font-weight: 600; }
.pub-venue {
display: inline-block; font-family: var(--mono); font-size: 11.5px;
font-weight: 500; padding: 1px 7px; margin-left: 2px;
background: var(--c-accent); color: #fff;
border-radius: 3px; letter-spacing: .3px;
}
.pub-venue.top {
background: var(--c-accent); color: #fff;
}
.pub-pdf {
display: inline-flex; align-items: center; gap: 4px;
font-size: 12px; padding: 1px 8px; margin-left: 4px;
border: 1px solid var(--c-line); border-radius: 3px;
color: var(--c-link); text-decoration: none;
}
.pub-pdf:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); text-decoration: none; }
/* ─── Hero tagline thrust badges (small logo before each research-domain title) ─── */
.thrust-badge {
display: inline-flex; align-items: center; justify-content: center;
width: 22px; height: 22px; border-radius: 6px;
margin-right: 6px; vertical-align: -5px;
font-size: 11px; color: #fff;
box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.thrust-badge.thrust-net { background: linear-gradient(135deg, var(--c-accent) 0%, #8a2a2a 100%); }
.thrust-badge.thrust-robot { background: linear-gradient(135deg, #f59e0b 0%, #b45309 100%); }
/* ─── Featured publications (rich cards with SVG teaser) ─────────────── */
.featured-list { display: flex; flex-direction: column; gap: 16px; }
/* Sticky-nav-aware anchor jump for in-page pub links */
.pub-feature[id] { scroll-margin-top: 80px; }
/* In-About pub-anchor links: visually distinct color + subtle underline */
.about a[href^="#pub-"] {
color: #1e40af;
font-weight: 600;
text-decoration: underline;
text-decoration-color: rgba(30,64,175,0.35);
text-decoration-thickness: 1px;
text-underline-offset: 2px;
border-radius: 2px;
padding: 0 1px;
transition: color .15s ease, background .15s ease;
}
.about a[href^="#pub-"]:hover {
color: #fff; background: var(--c-accent);
text-decoration: none;
}
/* Brief highlight pulse when an article is targeted via anchor */
.pub-feature[id]:target { box-shadow: 0 0 0 3px var(--c-accent), var(--shadow-md); animation: pubFlash 1.4s ease-out; }
@keyframes pubFlash {
0% { box-shadow: 0 0 0 0 rgba(127,29,29,0.55), var(--shadow-md); }
60% { box-shadow: 0 0 0 6px rgba(127,29,29,0.18), var(--shadow-md); }
100% { box-shadow: 0 0 0 3px var(--c-accent), var(--shadow-md); }
}
/* Collapsible behavior: hide details by default; click title or teaser to expand */
.pub-feature .pf-head { cursor: pointer; user-select: none; position: relative; padding-right: 22px; }
.pub-feature .pf-teaser { cursor: pointer; }
.pub-feature .pf-head::after {
content: "\f078"; /* chevron-down */
font-family: "Font Awesome 6 Free"; font-weight: 900;
position: absolute; right: 0; top: 6px;
font-size: 12px; color: var(--c-muted);
transition: transform .2s ease;
}
.pub-feature.expanded .pf-head::after { transform: rotate(180deg); color: var(--c-accent); }
.pub-feature .pf-head:hover .pf-title { color: var(--c-accent); }
/* Only the key-insight callout (.pf-highlight) is collapsed by default.
Authors, venue, impact metrics, PDF / BibTeX / abstract links stay visible. */
.pub-feature:not(.expanded) .pf-highlight { display: none !important; }
.pub-feature {
display: grid;
grid-template-columns: 275px 1fr;
grid-auto-rows: min-content;
column-gap: 18px; row-gap: 0;
background: var(--c-paper);
border: 1px solid var(--c-line);
border-left: 3px solid var(--c-accent);
border-radius: var(--radius);
padding: 18px 22px 16px;
box-shadow: var(--shadow-sm);
transition: box-shadow .2s ease, transform .15s ease;
}
.pub-feature:hover {
box-shadow: var(--shadow-md);
transform: translateY(-1px);
}
/* All direct children default to right column; teaser overrides */
.pub-feature > * { grid-column: 2; min-width: 0; }
.pub-feature > .pf-teaser { grid-column: 1; grid-row: 1 / span 8; align-self: center; }
/* ─── SVG teaser thumbnail ─── */
.pf-teaser {
width: 275px; height: 206px;
border-radius: 6px;
overflow: hidden;
position: relative;
align-self: center;
display: flex; align-items: center; justify-content: center;
border: none;
box-shadow: none;
}
.pf-teaser svg { width: 100%; height: 100%; display: block; }
.pf-teaser img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: contain; display: block; border-radius: 6px; }
/* Theme palettes */
.pf-teaser.theme-obs,
.pf-teaser.theme-sec,
.pf-teaser.theme-ver,
.pf-teaser.theme-net,
.pf-teaser.theme-trust,
.pf-teaser.theme-robot { background: transparent; }
.pf-teaser .teaser-label {
display: none;
}
/* On narrow screens stack vertically */
@media (max-width: 720px) {
.pub-feature { grid-template-columns: 1fr; }
.pub-feature > .pf-teaser { grid-column: 1; grid-row: auto; width: 100%; height: 140px; }
.pub-feature > * { grid-column: 1; }
}
.pub-feature .pf-head {
display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px;
margin-bottom: 6px;
}
.pub-feature .pf-badge {
font-family: var(--mono); font-size: 12px; font-weight: 700;
padding: 4px 11px; border-radius: 4px;
background: linear-gradient(135deg, var(--c-accent) 0%, #8a2a2a 100%);
color: #fff; letter-spacing: .6px;
text-transform: uppercase;
white-space: nowrap; flex-shrink: 0;
box-shadow: 0 1px 2px rgba(0,0,0,.12);
border: 1px solid var(--c-accent);
}
/* Top-tier accent (SIGCOMM/CCS/NDSS/S&P/NSDI/USENIX Sec) — bold red ribbon */
.pub-feature .pf-badge[class*="SIGCOMM"],
.pub-feature .pf-badge[class*="CCS"],
.pub-feature .pf-badge[class*="NDSS"],
.pub-feature .pf-badge[class*="NSDI"],
.pub-feature .pf-badge[class*="USec"],
.pub-feature .pf-badge.top {
background: linear-gradient(135deg, var(--c-accent) 0%, #8a2a2a 100%);
border-color: var(--c-accent);
}
.pub-feature .pf-badge.tier2 {
background: linear-gradient(135deg, var(--c-accent) 0%, #8a2a2a 100%);
border-color: var(--c-accent);
color: #fff;
}
.pub-feature .pf-title {
font-family: var(--serif);
font-size: 17.5px; font-weight: 600;
color: var(--c-ink); line-height: 1.35;
margin: 0;
}
.pub-feature .pf-authors {
font-size: 13.5px; color: var(--c-ink-soft);
margin: 4px 0 2px; line-height: 1.5;
}
.pub-feature .pf-authors b { color: var(--c-accent); font-weight: 600; }
.pub-feature .pf-authors .stu { text-decoration: underline; text-decoration-color: var(--c-muted); text-decoration-thickness: 1px; text-underline-offset: 2px; }
.pub-feature .pf-venue {
font-size: 13px; color: var(--c-muted); font-style: italic;
margin: 0 0 10px;
}
/* ─── Key Insight / Highlight callout (visible by default) ─── */
.pub-feature .pf-highlight {
display: flex; gap: 12px;
background: linear-gradient(180deg, #fdfaf3 0%, #fbf6e9 100%);
border-left: 3px solid #d97706;
border-radius: 0 6px 6px 0;
padding: 12px 14px;
margin: 4px 0 10px;
font-size: 13.5px; color: var(--c-ink);
line-height: 1.6;
}
.pub-feature .pf-highlight::before {
content: "\f0eb"; /* lightbulb */
font-family: "Font Awesome 6 Free"; font-weight: 900;
color: #b45309; font-size: 16px;
flex-shrink: 0; line-height: 1.4;
}
.pub-feature .pf-highlight .pf-hl-text {
flex: 1;
}
.pub-feature .pf-highlight .pf-hl-text b {
color: var(--c-accent); font-weight: 700;
}
.pub-feature .pf-highlight .pf-hl-label {
display: inline-block;
font-family: var(--mono); font-size: 10.5px; font-weight: 700;
color: #b45309; letter-spacing: .8px;
text-transform: uppercase;
margin-right: 8px;
}
/* ─── Impact metrics strip ─── */
.pub-feature .pf-impact {
display: flex; flex-wrap: wrap; gap: 6px;
margin: 0 0 10px;
}
.pub-feature .pf-impact span {
display: inline-flex; align-items: center; gap: 5px;
font-family: var(--mono); font-size: 11.5px; font-weight: 600;
padding: 3px 9px; border-radius: 4px;
background: var(--c-accent-soft); color: var(--c-accent);
border: 1px solid #f0d9d4;
}
.pub-feature .pf-impact span.deploy {
background: #ecfdf5; color: #047857; border-color: #a7f3d0;
}
.pub-feature .pf-impact span.gh {
background: #1f2937; color: #fff; border-color: #1f2937;
}
.pub-feature .pf-impact span.gh i { color: #fbbf24; }
.pub-feature .pf-impact span.cncf {
background: #ede9fe; color: #6d28d9; border-color: #c4b5fd;
}
.pub-feature .pf-impact span i { font-size: 10.5px; }
/* Abstract / BibTeX toggles styled as chips (same row as PDF link) */
.pub-feature details.pf-abstract,
.pub-feature details.bibtex {
margin: 0;
}
.pub-feature details.pf-abstract[open],
.pub-feature details.bibtex[open] {
flex: 1 0 100%;
}
.pub-feature details.pf-abstract > summary,
.pub-feature details.bibtex > summary {
list-style: none; user-select: none;
}
.pub-feature details.pf-abstract > summary::-webkit-details-marker,
.pub-feature details.bibtex > summary::-webkit-details-marker { display: none; }
.pub-feature details.pf-abstract > summary::before {
content: "\f02d";
font-family: "Font Awesome 6 Free"; font-weight: 900;
font-size: 11px;
}
.pub-feature details.bibtex > summary::before {
content: "\f121";
font-family: "Font Awesome 6 Free"; font-weight: 900;
font-size: 11px;
}
.pub-feature details.pf-abstract > summary:hover,
.pub-feature details.bibtex > summary:hover {
background: var(--c-accent); color: #fff; border-color: var(--c-accent);
}
.pub-feature details.pf-abstract[open] > summary,
.pub-feature details.bibtex[open] > summary {
background: var(--c-accent-soft); color: var(--c-accent);
border-color: var(--c-accent);
}
.pub-feature details.pf-abstract p {
font-size: 13.5px; color: var(--c-ink-soft); line-height: 1.65;
margin: 8px 0 0; text-align: justify; hyphens: auto;
background: #f8f6f1;
border: 1px solid var(--c-line);
border-radius: 4px;
padding: 10px 14px;
}
.pub-feature .pf-links {
display: flex; flex-wrap: wrap; gap: 6px;
align-items: center; margin-top: 4px;
}
/* Unified chip style for all action buttons */
.pub-feature .pf-links a,
.pub-feature .pf-links > details > summary {
box-sizing: border-box;
display: inline-flex; align-items: center; justify-content: center;
gap: 5px;
height: 26px; padding: 0 10px;
font-family: var(--sans);
font-size: 12.5px; font-weight: 500; line-height: 1;
border-radius: 4px;
background: var(--c-bg);
border: 1px solid var(--c-line);
color: var(--c-link); text-decoration: none; cursor: pointer;
transition: all .15s ease;
}
.pub-feature .pf-links a:hover,
.pub-feature .pf-links > details > summary:hover {
background: var(--c-accent); color: #fff; border-color: var(--c-accent);
text-decoration: none;
}
.pub-feature .pf-links i,
.pub-feature .pf-links > details > summary::before {
font-size: 11px; width: 12px; text-align: center;
}
.pub-feature details.bibtex pre {
font-family: var(--mono); font-size: 11.5px; line-height: 1.5;
background: #f8f6f1; border: 1px solid var(--c-line);
border-radius: 4px; padding: 10px 12px;
margin: 8px 0 0; white-space: pre-wrap;
color: var(--c-ink-soft); overflow-x: auto;
}
.pub-subtitle {
font-family: var(--serif); font-size: 16px; font-weight: 600;
color: var(--c-ink-soft); margin: 28px 0 12px;
padding-bottom: 6px; border-bottom: 1px dashed var(--c-line);
}
/* ─── Patents accordion ──────────────────────────────────── */
details.patents {
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: var(--radius);
margin: 12px 0; padding: 0;
box-shadow: var(--shadow-sm);
}
details.patents > summary {
cursor: pointer; padding: 14px 20px;
font-family: var(--serif); font-weight: 600; font-size: 16px;
color: var(--c-accent);
list-style: none;
display: flex; align-items: center; justify-content: space-between;
}
details.patents > summary::-webkit-details-marker { display: none; }
details.patents > summary::after {
content: "▾"; transition: transform .2s ease; color: var(--c-muted);
}
details.patents[open] > summary::after { transform: rotate(180deg); }
details.patents > summary:hover { background: var(--c-line-soft); }
details.patents .patent-list {
padding: 0 20px 16px; margin: 0; list-style: none;
column-count: 2; column-gap: 24px;
}
details.patents .patent-list li {
margin: 6px 0; padding-left: 8px; font-size: 13.5px; line-height: 1.55;
color: var(--c-ink-soft); break-inside: avoid;
}
details.patents .patent-list li b { color: var(--c-ink); font-weight: 600; }
/* ─── Generic lists (projects, awards, etc.) ─────────────── */
.info-list {
list-style: none; padding: 0; margin: 0;
}
.info-list li {
position: relative; padding: 10px 0 10px 24px;
border-bottom: 1px solid var(--c-line-soft);
font-size: 14.5px; color: var(--c-ink); line-height: 1.55;
}
.info-list li:last-child { border-bottom: 0; }
.info-list li::before {
content: "▸"; position: absolute; left: 4px; top: 10px;
color: var(--c-accent); font-size: 13px;
}
/* ─── News timeline ──────────────────────────────────────── */
.news-wrap {
max-height: 420px; overflow-y: auto;
background: var(--c-paper);
border: 1px solid var(--c-line);
border-radius: var(--radius);
padding: 8px 22px 12px;
box-shadow: var(--shadow-sm);
scrollbar-width: thin;
scrollbar-color: var(--c-line) transparent;
}
.news-wrap::-webkit-scrollbar { width: 8px; }
.news-wrap::-webkit-scrollbar-thumb { background: var(--c-line); border-radius: 4px; }
.news-list {
list-style: none; padding: 0; margin: 0;
position: relative;
}
.news-list::before {
content: ""; position: absolute;
left: 88px; top: 16px; bottom: 8px; width: 2px;
background: var(--c-line); z-index: 0;
}
.news-item {
display: grid; grid-template-columns: 80px 16px 1fr; gap: 12px;
padding: 12px 0; align-items: start;
position: relative;
}
.news-item + .news-item { border-top: 1px dashed var(--c-line-soft); }
.news-date {
font-family: var(--mono); font-size: 12px;
color: var(--c-muted); padding-top: 3px;
text-align: right; white-space: nowrap;
}
.news-dot {
width: 10px; height: 10px; border-radius: 50%;
background: var(--c-accent);
border: 2px solid var(--c-bg);
box-shadow: 0 0 0 2px var(--c-accent-soft);
margin-top: 7px; margin-left: 3px;
z-index: 1;
}
.news-dot.muted {
background: var(--c-paper); border-color: var(--c-muted);
box-shadow: 0 0 0 2px var(--c-line);
}
.news-text {
font-size: 14px; color: var(--c-ink); line-height: 1.55;
}
.news-text b { color: var(--c-accent); font-weight: 600; }
.news-badge {
display: inline-block; font-family: var(--mono);
font-size: 10.5px; font-weight: 600; letter-spacing: .4px;
padding: 1px 7px; margin-right: 6px;
border-radius: 3px; vertical-align: 1px;
text-transform: uppercase;
}
.news-badge.paper { background: #fde2e2; color: #991b1b; }
.news-badge.award { background: #fef3c7; color: #92400e; }
.news-badge.service { background: #dbeafe; color: #1e40af; }
.news-badge.talk { background: #dcfce7; color: #14532d; }
.news-badge.misc { background: var(--c-tag-bg); color: var(--c-ink-soft); }
/* ─── Stats strip (hero) ─────────────────────────────────── */
.stats-row {
display: flex; flex-wrap: wrap; gap: 0;
margin-top: 22px;
border: 1px solid var(--c-line);
border-radius: var(--radius);
background: var(--c-paper);
overflow: hidden;
}
.stats-row .stat {
flex: 1 1 0; min-width: 110px;
padding: 12px 14px;
border-right: 1px solid var(--c-line-soft);
text-align: center;
transition: background .15s ease;
}
.stats-row a.stat:hover { background: var(--c-accent-soft); }
.stats-row a.stat:hover .num { color: var(--c-link-hover); }
.stats-row .stat:last-child { border-right: 0; }
.stats-row .stat .num {
font-family: var(--serif); font-weight: 700;
font-size: 22px; color: var(--c-accent); line-height: 1.1;
display: block;
}
.stats-row .stat .lbl {
font-size: 12px; color: var(--c-muted);
margin-top: 3px; letter-spacing: .2px;
}
/* ─── Production Systems Banner (entry link) ────────────── */
.prod-banner {
display: block;
max-width: var(--maxw); margin: 0 auto;
padding: 0 24px;
text-decoration: none;
scroll-margin-top: 80px;
}
.prod-banner-inner {
display: flex; align-items: center; gap: 16px;
background: linear-gradient(135deg, #1a1a2e 0%, #16213e 55%, #0f3460 100%);
border: 1px solid rgba(255,255,255,.08);
border-radius: 12px;
padding: 18px 24px;
margin: 8px 0;
box-shadow: 0 4px 20px rgba(0,0,0,.15);
transition: transform .2s ease, box-shadow .25s ease;
position: relative; overflow: hidden;
}
.prod-banner-inner::before {
content: '';
position: absolute; top: 0; left: 0; right: 0; height: 2px;
background: linear-gradient(90deg, #e94560, #f97316, #eab308);
}
.prod-banner:hover .prod-banner-inner {
transform: translateY(-2px);
box-shadow: 0 8px 32px rgba(233,69,96,.15), 0 4px 12px rgba(0,0,0,.2);
border-color: rgba(233,69,96,.2);
}
.prod-banner-icon {
width: 44px; height: 44px; flex-shrink: 0;
display: flex; align-items: center; justify-content: center;
background: linear-gradient(135deg, rgba(233,69,96,.2), rgba(249,115,22,.15));
border: 1px solid rgba(233,69,96,.25);
border-radius: 10px;
}
.prod-banner-icon i { font-size: 18px; color: #f87171; }
.prod-banner-text { flex: 1; min-width: 0; }
.prod-banner-title {
display: block; font-family: var(--serif); font-weight: 700;
font-size: 17px; color: #fff; letter-spacing: -.2px;