/* ============================================================
   Minhui Ye — Personal Portfolio
   Floating card layout · Figma-inspired design language
   Inter + Crimson Text · Warm neutral palette
   ============================================================ */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', 'Crimson Text', 'Georgia', serif;
  --font-serif-cn: 'Noto Serif SC', 'Source Serif 4', 'SimSun', serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  --ink: #1a1a1a;
  --body: #374151;
  --secondary: #6b7280;
  --muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f0f0f0;
  --surface: #f9fafb;
  --bg: #ffffff;
  --page-bg: #f4f2ef;

  --accent: #c0825a;
  --accent-hover: #a96e49;
  --accent-subtle: rgba(192, 130, 90, 0.07);
  --accent-border: rgba(192, 130, 90, 0.22);

  --shadow-card: 0 2px 20px rgba(0,0,0,0.04), 0 0px 60px rgba(0,0,0,0.02);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.09);

  --radius: 10px;
  --radius-lg: 16px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── DARK MODE ──────────────────────────────────────────── */
[data-theme="dark"] {
  --ink: #f0ece7;
  --body: #c8c2ba;
  --secondary: #9a9490;
  --muted: #706b66;
  --border: #2e2b28;
  --border-light: #252220;
  --surface: #1e1b18;
  --bg: #171411;
  --page-bg: #0f0d0b;

  --accent: #d4956e;
  --accent-hover: #e0a880;
  --accent-subtle: rgba(212, 149, 110, 0.08);
  --accent-border: rgba(212, 149, 110, 0.2);

  --shadow-card: 0 2px 20px rgba(0,0,0,0.2), 0 0px 60px rgba(0,0,0,0.1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.25);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.3);
}

/* Dark mode nav frosted glass */
[data-theme="dark"] .navigation-wrapper {
  background: rgba(15, 13, 11, 0.85);
}
[data-theme="dark"] .navigation-wrapper.scrolled {
  background: rgba(15, 13, 11, 0.95);
}

/* Dark mode sidebar */
[data-theme="dark"] .sidebar {
  background: var(--bg);
  border-right-color: var(--border);
}

/* Dark mode intent box */
[data-theme="dark"] .intent-box {
  border-color: rgba(212, 149, 110, 0.15);
  background: rgba(212, 149, 110, 0.05);
}

/* Dark mode like button */
[data-theme="dark"] .like-btn {
  background: var(--surface);
  border-color: var(--border);
  color: var(--secondary);
}

/* Dark mode sidebar status badge */
[data-theme="dark"] .sidebar-status {
  color: #6abf7b !important;
  background: rgba(106, 191, 123, 0.1) !important;
  border-color: rgba(106, 191, 123, 0.2) !important;
}

/* Dark mode images - subtle brightness reduction */
[data-theme="dark"] .article-wrap center img,
[data-theme="dark"] .article-wrap .img-row img,
[data-theme="dark"] img.floatpic,
[data-theme="dark"] .bio-photo {
  filter: brightness(0.92);
}

/* Dark mode footer */
[data-theme="dark"] .footer-wrap {
  background: transparent !important;
}

/* Dark mode back-to-top */
[data-theme="dark"] .back-to-top {
  background: rgba(30, 27, 24, 0.9);
  border-color: var(--border);
}

/* ── THEME TOGGLE BUTTON ───────────────────────────────── */
.theme-toggle {
  display: inline-flex !important;
  align-items: center;
  margin-right: 0 !important;
}

.theme-toggle button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--secondary);
  transition: color 0.25s ease;
  display: flex;
  align-items: center;
}

.theme-toggle button:hover {
  color: var(--accent);
}

/* Show/hide sun/moon icons based on theme */
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* ── RESET & GLOBAL ────────────────────────────────────── */
html {
  font-size: 106.25% !important; /* 17px base */
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans) !important;
  color: var(--body) !important;
  line-height: 1.72 !important;
  letter-spacing: -0.006em;
  background: var(--page-bg) !important;
  margin: 0 !important;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans) !important;
  color: var(--ink) !important;
  letter-spacing: -0.02em;
  line-height: 1.3 !important;
}
h1 { font-size: 1.85rem !important; font-weight: 700 !important; margin-bottom: 0.6em; }
h2 { font-size: 1.4rem !important; font-weight: 600 !important; }
h3 { font-size: 1.15rem !important; font-weight: 600 !important; }
h4 { font-size: 1.02rem !important; font-weight: 600 !important; }

p {
  font-size: 0.94rem;
  line-height: 1.75;
  margin: 0 0 1.15em;
  color: var(--body);
}
p + p { text-indent: 0 !important; margin-top: 0 !important; }

a { color: var(--ink) !important; text-decoration: none !important; transition: color 0.2s var(--ease); }
a:hover { color: var(--accent) !important; }

::selection { background: rgba(192, 130, 90, 0.14) !important; color: var(--ink) !important; }

/* ── PAGE SHELL — Background ──────────────────────────── */
.page-shell {
  min-height: 100vh;
  max-width: 1080px;
  margin: 0 auto;
  padding: 2em 1.5em 3em;
}

/* ── NAVIGATION ────────────────────────────────────────── */
.navigation-wrapper {
  padding: 0 !important;
  margin-bottom: 1.2em !important;
  border-bottom: none !important;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: transparent;
  width: 100% !important;
  float: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Add frosted glass when scrolled */
.navigation-wrapper.scrolled {
  background: rgba(245, 243, 240, 0.85);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  margin-left: -1.5em !important;
  margin-right: -1.5em !important;
  padding: 0.8em 1.5em !important;
  width: calc(100% + 3em) !important;
  border-radius: 0;
}

.site-name {
  float: none !important;
  display: inline-block !important;
  width: auto !important;
  margin: 0 !important;
}

.site-name a {
  font-family: var(--font-sans) !important;
  font-weight: 700 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.02em !important;
  color: var(--ink) !important;
}
.site-name a:hover { opacity: 0.6; }

.top-navigation {
  float: none !important;
  display: inline-block !important;
  width: auto !important;
  margin: 0 !important;
  font-family: var(--font-sans) !important;
  font-weight: 450 !important;
  font-size: 0.82rem !important;
  text-transform: none !important;
}

.top-navigation ul { display: flex; align-items: center; gap: 0; }
.top-navigation li { margin-right: 22px !important; }

.top-navigation li a {
  color: var(--secondary) !important;
  border-bottom: none !important;
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease) !important;
}
.top-navigation li a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 50%;
  width: 0; height: 1.5px;
  background: var(--accent);
  transition: width 0.25s ease, left 0.25s ease;
}
.top-navigation li a:hover { color: var(--ink) !important; }
.top-navigation li a:hover::after { width: 100%; left: 0; }

.top-navigation-current { text-decoration: none !important; color: var(--ink) !important; }
.top-navigation-current::after {
  content: ''; position: absolute; bottom: -2px; left: 0; width: 100%; height: 1.5px; background: var(--ink);
}

.lang-toggle {
  display: inline-flex !important; align-items: center; gap: 2px;
  padding-left: 18px !important; border-left: 1px solid var(--border) !important;
  margin-left: 0 !important;
}
.lang-sep { color: var(--border) !important; font-weight: 300; margin: 0 2px; user-select: none; }

/* ── PAGE CARD — The floating container ────────────────── */
.page-card {
  display: flex;
  gap: 0;
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  position: relative;
}

/* Decorative top accent line */
.page-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #d4a98a, var(--accent));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ── GEOMETRIC DECORATIONS — Anthropic-inspired ────────── */

/* Page background: warm layered gradients */
.page-shell {
  background:
    radial-gradient(ellipse at 90% 5%, rgba(192,130,90,0.09) 0%, transparent 45%),
    radial-gradient(ellipse at 5% 85%, rgba(160,140,120,0.07) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 50%, rgba(192,150,110,0.03) 0%, transparent 70%);
}

.page-shell::before,
.page-shell::after {
  content: '';
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

/* Top-right: small cross mark */
.page-shell::before {
  top: 5%;
  right: 2%;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 0;
  opacity: 0.16;
  background:
    linear-gradient(var(--accent), var(--accent)) center/2px 100% no-repeat,
    linear-gradient(var(--accent), var(--accent)) center/100% 2px no-repeat;
}

/* Bottom-left: diamond constellation */
.page-shell::after {
  bottom: 8%;
  left: 1.5%;
  width: 55px;
  height: 55px;
  border: 2.5px solid var(--accent);
  transform: rotate(45deg);
  opacity: 0.18;
  box-shadow:
    28px 28px 0 -25px var(--accent),
    -28px -28px 0 -25px var(--accent),
    28px -28px 0 -25px var(--accent),
    -28px 28px 0 -25px var(--accent);
}

/* Sidebar: dot grid */
.sidebar::after {
  content: '';
  display: block;
  margin: 2em auto 0;
  width: 55px;
  height: 55px;
  opacity: 0.25;
  background-image:
    radial-gradient(circle, var(--accent) 2px, transparent 2px);
  background-size: 11px 11px;
}

/* Card: corner bracket accents (top-left + bottom-right) */
.page-card::after {
  content: '';
  position: absolute;
  bottom: 14px;
  right: 14px;
  width: 28px;
  height: 28px;
  border-right: 2.5px solid rgba(192,130,90,0.18);
  border-bottom: 2.5px solid rgba(192,130,90,0.18);
  pointer-events: none;
  z-index: 1;
}

/* Section heading: trailing accent line */
.article-wrap h2::after {
  content: '';
  display: inline-block;
  width: 35px;
  height: 1.5px;
  background: var(--accent);
  vertical-align: middle;
  margin-left: 0.6em;
  opacity: 0.5;
}

/* Extra decorations injected via JS */
.geo-ring {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

.geo-cross {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  width: 20px;
  height: 20px;
}

.geo-cross::before,
.geo-cross::after {
  content: '';
  position: absolute;
  background: var(--accent);
}

.geo-cross::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.geo-cross::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

/* Dot pairs near content sections */
.pub-card::before {
  content: '·';
  position: absolute;
  top: -0.6em;
  right: 1em;
  font-size: 1.4rem;
  color: var(--accent);
  opacity: 0.2;
  pointer-events: none;
}

.pub-card {
  position: relative;
}

.award-card {
  position: relative;
}

/* Stats row decorative corners */
.stats-row::before {
  content: '';
  position: absolute;
  top: -6px;
  left: -6px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
  opacity: 0.2;
  pointer-events: none;
}

.stats-row::after {
  content: '';
  position: absolute;
  bottom: -6px;
  right: -6px;
  width: 14px;
  height: 14px;
  border-bottom: 2px solid var(--accent);
  border-right: 2px solid var(--accent);
  opacity: 0.2;
  pointer-events: none;
}

.stats-row {
  position: relative;
}

/* ── SIDEBAR ───────────────────────────────────────────── */
.sidebar {
  width: 220px;
  min-width: 220px;
  padding: 2.5em 1.5em 3em;
  border-right: 1px solid var(--border-light);
  text-align: center;
  background: var(--bg);
}

.bio-photo {
  width: 140px !important;
  height: 140px !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-sm) !important;
  border: none !important;
  object-fit: cover;
  display: block !important;
  margin: 0 auto 1em !important;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease) !important;
}
.bio-photo:hover { transform: scale(1.03); box-shadow: var(--shadow-md) !important; }

/* Hide the old top-bar author display */
.article-author-top { display: none !important; }
.article-author-bottom { display: none !important; }

/* Sidebar bio text */
.sidebar > p {
  font-size: 0.8rem !important;
  color: var(--secondary) !important;
  line-height: 1.55 !important;
  text-align: center;
  margin-bottom: 1.2em;
  font-style: italic;
  font-family: var(--font-serif);
}

/* Sidebar links */
.sidebar > p[style] {
  font-size: 0.82rem !important;
  font-style: normal !important;
  font-family: var(--font-sans) !important;
  text-align: left;
  margin-bottom: 0.4em !important;
  padding-left: 0.3em;
}

.sidebar > p[style] a {
  color: var(--body) !important;
  border-bottom: none !important;
  transition: color 0.2s var(--ease) !important;
}
.sidebar > p[style] a:hover { color: var(--accent) !important; }

/* Sidebar identity labels */
.sidebar-name {
  font-family: var(--font-sans) !important;
  font-weight: 700 !important;
  font-size: 1.05rem !important;
  color: var(--ink) !important;
  margin: 0 0 0.1em !important;
  font-style: normal !important;
  letter-spacing: -0.01em;
}

.sidebar-title {
  font-family: var(--font-sans) !important;
  font-size: 0.82rem !important;
  color: var(--accent) !important;
  font-weight: 500 !important;
  margin: 0 0 0.1em !important;
  font-style: normal !important;
}

.sidebar-affiliation {
  font-family: var(--font-sans) !important;
  font-size: 0.78rem !important;
  color: var(--secondary) !important;
  font-weight: 400 !important;
  margin: 0 0 0.6em !important;
  font-style: normal !important;
}

.sidebar-status {
  display: inline-block !important;
  font-family: var(--font-sans) !important;
  font-size: 0.68rem !important;
  font-weight: 600 !important;
  color: #3a7d44 !important;
  background: rgba(58, 125, 68, 0.08) !important;
  border: 1px solid rgba(58, 125, 68, 0.2) !important;
  padding: 2px 10px !important;
  border-radius: 20px !important;
  margin: 0 0 1em !important;
  font-style: normal !important;
  letter-spacing: 0.02em;
}

/* Sidebar email (shown as text) */
.sidebar-email {
  text-indent: 0 !important;
  margin-top: 1.2em !important;
  font-family: var(--font-mono) !important;
  font-size: 0.78rem !important;
  word-break: break-all;
  line-height: 1.5 !important;
}

.sidebar-email a {
  color: var(--body) !important;
  border-bottom: none !important;
  transition: color 0.25s var(--ease);
}

.sidebar-email a:hover {
  color: var(--accent) !important;
}

/* Sidebar Like button */
.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.45em 1.2em;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  background: var(--bg);
  color: var(--secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  margin-top: 1.2em;
  width: auto;
}

.like-btn:hover {
  border-color: #e25555;
  color: #e25555;
}

.like-btn.liked {
  border-color: #e25555;
  color: #e25555;
}

.like-btn.liked .like-icon {
  fill: #e25555;
  stroke: #e25555;
}

.like-count {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* Sidebar Download CV button */
.btn-cv {
  display: inline-block;
  width: calc(100% - 0.6em);
  text-align: center;
  padding: 0.5em 0;
  border: 1.5px solid var(--accent) !important;
  border-radius: 6px;
  color: var(--accent) !important;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.8rem;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}
.btn-cv:hover { background: var(--accent); color: #fff !important; }

/* ── MAIN CONTENT ──────────────────────────────────────── */
#main {
  flex: 1;
  min-width: 0;
  padding: 2.5em 2.8em 2em;
  margin: 0 !important;
  width: auto !important;
  float: none !important;
}

#main article {
  margin: 0 !important;
  width: 100% !important;
  float: none !important;
}

.article-wrap {
  animation: contentIn 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes contentIn {
  from { opacity: 0; transform: translateY(25px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section headings — left accent dot */
.article-wrap h2 {
  margin-top: 2.2em;
  margin-bottom: 0.8em;
  padding-left: 0.9em;
  position: relative;
}
.article-wrap h2::before {
  content: '';
  position: absolute;
  left: 0; top: 0.38em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.article-wrap h1 + .stats-row,
.article-wrap h1 ~ hr:first-of-type {
  margin-top: 1.5em;
}

/* Links in content */
.article-wrap a {
  color: var(--accent) !important;
  border-bottom: 1px solid var(--accent-border) !important;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease) !important;
}
.article-wrap a:hover { color: var(--accent-hover) !important; border-bottom-color: var(--accent) !important; }
.article-wrap strong { font-weight: 600; color: var(--ink); }
.article-wrap em { font-style: italic; color: var(--secondary); font-family: var(--font-serif); }

/* Artistic section dividers */
.article-wrap hr {
  border: none !important; height: 0; margin: 2.2em 0 !important;
  position: relative; overflow: visible;
}
.article-wrap hr::before {
  content: '· · ·'; display: block; text-align: center;
  color: var(--muted); font-size: 0.85rem; letter-spacing: 0.5em;
}

/* ── LISTS — Timeline ──────────────────────────────────── */
.article-wrap ul { list-style: none !important; padding-left: 0 !important; margin-left: 0 !important; }

.article-wrap ul li {
  list-style-type: none !important; position: relative;
  padding: 0.35em 0 0.35em 1.5em;
  margin-bottom: 0.05em;
  border-left: 1.5px solid var(--border);
  transition: border-color 0.3s ease;
}
.article-wrap ul li::before {
  content: ''; position: absolute; left: -3px; top: 0.85em;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--border); transition: background 0.3s ease, transform 0.2s ease;
}
.article-wrap ul li:hover { border-left-color: var(--accent); }
.article-wrap ul li:hover::before { background: var(--accent); transform: scale(1.3); }

/* Ordered lists */
.article-wrap ol { padding-left: 1.5em !important; counter-reset: item; }
.article-wrap ol li {
  list-style-type: none !important; border-left: none !important;
  padding-left: 0.4em; margin-bottom: 0.65em; counter-increment: item; position: relative;
}
.article-wrap ol li::before {
  content: counter(item); position: absolute; left: -1.7em; top: 0.15em;
  width: 1.25em; height: 1.25em; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--accent); font-size: 0.7em; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s var(--ease);
}
.article-wrap ol li:hover::before { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── STATS ROW ─────────────────────────────────────────── */
.stats-row {
  display: flex; gap: 0; margin: 1.8em 0 0.8em;
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.stat-item {
  flex: 1; text-align: center; padding: 1.1em 0.4em;
  border-right: 1px solid var(--border); transition: background 0.3s ease;
}
.stat-item:last-child { border-right: none; }
.stat-item:hover { background: var(--accent-subtle); }
.stat-item p { margin: 0 !important; font-size: 0.78rem; color: var(--secondary); line-height: 1.4; }
.stat-number {
  display: block; font-size: 1.8rem !important; font-weight: 700 !important;
  color: var(--accent) !important; letter-spacing: -0.04em; line-height: 1.1; margin-bottom: 0.15em;
}

/* ── FEATURED PROJECT CARDS ────────────────────────────── */
.featured-projects { display: grid; grid-template-columns: 1fr 1fr; gap: 1em; margin: 1.2em 0 0.5em; }

.project-card {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease); background: var(--bg);
}
.project-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-5px); }
.project-card img { width: 100%; height: 130px; object-fit: cover; display: block; border-bottom: 1px solid var(--border-light); }
.project-card .card-body { padding: 0.9em 1em; }
.project-card .card-body h4 { margin: 0 0 0.25em !important; font-size: 0.88rem !important; line-height: 1.35; }
.project-card .card-body h4 a { color: var(--ink) !important; border-bottom: none !important; }
.project-card .card-body h4 a:hover { color: var(--accent) !important; }
.project-card .card-body p { margin: 0; font-size: 0.76rem; color: var(--secondary); line-height: 1.5; }
.project-card .card-tag {
  display: inline-block; font-size: 0.65rem; font-weight: 500;
  padding: 1px 7px; border-radius: 3px;
  background: var(--accent-subtle); color: var(--accent); margin-top: 0.5em; margin-right: 0.2em;
}

/* ── PROJECT DETAIL PAGES ──────────────────────────────── */
.article-wrap h4 { margin-top: 1.8em !important; margin-bottom: 0.4em; }
.article-wrap h4 a { color: var(--ink) !important; border-bottom: none !important; }
.article-wrap h4 a:hover { color: var(--accent) !important; }

.article-wrap center img {
  border-radius: 6px; box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  max-width: 100%; position: relative; z-index: 1;
}
.article-wrap center img:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* Tech stack tags */
.article-wrap code {
  background: var(--surface); color: var(--accent);
  padding: 2px 8px; border-radius: 4px; font-size: 0.78em;
  font-family: var(--font-mono); border: 1px solid var(--border-light);
  white-space: nowrap; display: inline-block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.article-wrap code:hover { transform: translateY(-1px); box-shadow: 0 2px 5px rgba(0,0,0,0.04); }

.article-wrap pre code {
  background: #1c1c1c; color: #d4d4d4; padding: 1.1em; border-radius: 6px;
  border: none; display: block; white-space: pre-wrap; line-height: 1.6;
}

/* Image gallery */
.img-row { display: flex; gap: 0.8em; margin: 1.2em 0; }
.img-row img {
  flex: 1; min-width: 0; border-radius: 6px; box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  object-fit: contain; background: var(--surface); position: relative; z-index: 1;
}
.img-row img:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.img-caption {
  text-align: center; font-size: 0.76rem; color: var(--muted);
  margin-top: 0.3em; margin-bottom: 1.2em;
}

/* ── PUBLICATION & AWARD CARDS ──────────────────────────── */
.pub-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1em 1.3em;
  margin-bottom: 1em;
  background: var(--bg);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.pub-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.pub-card .pub-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--ink);
  margin: 0 0 0.3em;
  line-height: 1.4;
}

.pub-card .pub-title a {
  color: var(--ink) !important;
  border-bottom: none !important;
}
.pub-card .pub-title a:hover {
  color: var(--accent) !important;
}

.pub-card .pub-authors {
  font-size: 0.82rem;
  color: var(--secondary);
  margin: 0 0 0.2em;
  line-height: 1.5;
}

.pub-card .pub-authors .me {
  color: var(--accent);
  font-weight: 600;
}

.pub-card .pub-venue {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-serif);
  font-style: italic;
  margin: 0 0 0.3em;
}

.pub-card .pub-desc {
  font-size: 0.78rem;
  color: var(--secondary);
  line-height: 1.55;
  margin: 0.4em 0 0;
}

.pub-card .pub-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 500;
  padding: 1px 7px;
  border-radius: 3px;
  background: var(--accent-subtle);
  color: var(--accent);
  margin-top: 0.4em;
  margin-right: 0.2em;
}

/* Award cards — similar but with different accent */
.award-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0.9em 1.2em;
  margin-bottom: 0.8em;
  background: var(--bg);
  display: flex;
  align-items: baseline;
  gap: 1em;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.award-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.award-card .award-year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  min-width: 3em;
}

.award-card .award-body {
  flex: 1;
}

.award-card .award-title {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--ink);
  margin: 0 0 0.15em;
  line-height: 1.4;
}

.award-card .award-detail {
  font-size: 0.78rem;
  color: var(--secondary);
  margin: 0;
  line-height: 1.5;
}

.award-card .award-tag {
  display: inline-block;
  font-size: 0.63rem;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--accent-subtle);
  color: var(--accent);
  margin-left: 0.3em;
  vertical-align: middle;
}

/* ── JOB INTENT BOX ────────────────────────────────────── */
.intent-box {
  margin: 1.5em 0;
  padding: 1em 1.3em;
  border: 1px solid var(--accent-border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--accent-subtle);
  clear: both;
}

.intent-label {
  font-family: var(--font-sans) !important;
  font-size: 0.78rem !important;
  font-weight: 600 !important;
  color: var(--accent) !important;
  letter-spacing: 0.04em;
  margin: 0 0 0.4em !important;
}

.intent-text {
  font-size: 0.88rem !important;
  color: var(--body) !important;
  margin: 0 0 0.2em !important;
  line-height: 1.55 !important;
}

/* ── NEWS LIST — Clean two-column layout ───────────────── */
.news-list {
  margin: 0.5em 0 1em;
}

.news-item {
  display: flex;
  align-items: baseline;
  gap: 1.5em;
  padding: 0.65em 0;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.2s ease;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item:hover {
  background: var(--accent-subtle);
  margin-left: -0.6em;
  margin-right: -0.6em;
  padding-left: 0.6em;
  padding-right: 0.6em;
  border-radius: 6px;
}

.news-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent);
  white-space: nowrap;
  min-width: 4.5em;
  flex-shrink: 0;
}

.news-text {
  font-size: 0.9rem;
  color: var(--body);
  line-height: 1.6;
}

.news-text a {
  color: var(--accent) !important;
}

.news-text strong {
  color: var(--ink);
}

/* ── BLOCKQUOTE ────────────────────────────────────────── */
.article-wrap blockquote {
  border-left: 3px solid var(--accent) !important; background: transparent !important;
  padding: 0.2em 0 0.2em 1.2em !important; margin: 1.8em 0 !important; border-radius: 0 !important;
}
.article-wrap blockquote p {
  font-family: var(--font-serif) !important; font-style: italic;
  color: var(--secondary); font-size: 0.95rem; line-height: 1.65; margin: 0;
}

/* ── FLOAT PICTURE ─────────────────────────────────────── */
img.floatpic {
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
img.floatpic:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ── CONTACT BOX ───────────────────────────────────────── */
.contact-box {
  margin: 2.5em 0 0.5em; padding: 1.8em 2em;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); text-align: center; position: relative;
}
.contact-box::before {
  content: ''; position: absolute; top: -1px; left: 2em; width: 35px; height: 3px;
  background: var(--accent); border-radius: 0 0 2px 2px;
}
.contact-box h3 { margin-top: 0 !important; margin-bottom: 0.3em; font-size: 1.1rem !important; }
.contact-box p { color: var(--secondary); font-size: 0.86rem; margin-bottom: 1em; }
.contact-box a.btn {
  display: inline-block; padding: 0.45em 1.4em;
  border: 1.5px solid var(--accent) !important; border-radius: 6px;
  color: var(--accent) !important; font-family: var(--font-sans);
  font-weight: 500; font-size: 0.82rem;
  transition: background 0.25s var(--ease), color 0.25s var(--ease); margin: 0 0.3em;
}
.contact-box a.btn:hover { background: var(--accent); color: #fff !important; }

/* ── FOOTER ────────────────────────────────────────────── */
.footer-wrap {
  background: transparent !important; border-top: none !important;
  padding: 1.5em 0 2.5em !important; text-align: center;
  max-width: 1080px; margin: 0 auto;
}
.footer-wrap footer { width: 100% !important; margin: 0 !important; float: none !important; }
.footer-wrap h6 {
  font-family: var(--font-sans) !important; font-weight: 400 !important;
  font-size: 0.72rem !important; color: var(--muted) !important; line-height: 1.8 !important;
}
.footer-wrap a { color: var(--secondary) !important; }
.footer-wrap a:hover { color: var(--ink) !important; }

/* ── READING PROGRESS ──────────────────────────────────── */
.reading-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent), #d4a98a);
  z-index: 9999; pointer-events: none;
}

/* ── BACK TO TOP ───────────────────────────────────────── */
.back-to-top {
  position: fixed; bottom: 1.8em; right: 1.8em;
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border); background: rgba(255,255,255,0.9);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  color: var(--secondary); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease, border-color 0.2s ease;
  z-index: 200; pointer-events: none;
}
.back-to-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { color: var(--accent); border-color: var(--accent); }

/* ── CURSOR GLOW ───────────────────────────────────────── */
.cursor-glow {
  display: none;
}

/* Secondary trailing ring — follows slower */
.cursor-ring {
  position: fixed; width: 28px; height: 28px; border-radius: 50%;
  border: 1.5px solid rgba(192,130,90,0.25);
  pointer-events: none; z-index: 3;
  transform: translate(-50%, -50%);
  will-change: left, top;
  opacity: 0; transition: opacity 0.4s ease, width 0.25s ease, height 0.25s ease;
}
.cursor-ring.active { opacity: 1; }
.cursor-ring.hovering { width: 50px; height: 50px; border-color: rgba(192,130,90,0.45); }

/* Small center dot */
.cursor-dot {
  position: fixed; width: 5px; height: 5px; border-radius: 50%;
  background: rgba(192,130,90,0.5);
  pointer-events: none; z-index: 4;
  transform: translate(-50%, -50%);
  will-change: left, top;
  opacity: 0; transition: opacity 0.3s ease, transform 0.2s ease;
}
.cursor-dot.active { opacity: 1; }
.cursor-dot.hovering { transform: translate(-50%, -50%) scale(2.2); }

/* ── SCROLL REVEAL ─────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ────────────────────────────────────────── */
/* ── CHINESE TYPOGRAPHY — Noto Serif SC for select elements ── */
:lang(zh) .article-wrap h1,
:lang(zh) .article-wrap h2 {
  font-family: var(--font-serif-cn) !important;
  font-weight: 700 !important;
}

:lang(zh) .article-wrap blockquote p {
  font-family: var(--font-serif-cn) !important;
}

:lang(zh) .sidebar-name {
  font-family: var(--font-serif-cn) !important;
}

:lang(zh) .intent-label {
  font-family: var(--font-serif-cn) !important;
  letter-spacing: 0.1em;
}

/* Hide cursor effects on touch devices */
@media (hover: none) {
  .cursor-ring, .cursor-dot, .cursor-glow { display: none !important; }
}

@media screen and (max-width: 900px) {
  .page-shell { padding: 1em 0.8em 2em; }
  .page-card { flex-direction: column; border-radius: var(--radius); }
  .sidebar {
    width: 100% !important; min-width: 0;
    border-right: none; border-bottom: 1px solid var(--border-light);
    padding: 1.8em 1.5em 1.2em;
    display: flex; flex-wrap: wrap; align-items: center; gap: 0.5em 1.2em;
  }
  .sidebar::after { display: none; }
  .bio-photo { width: 80px !important; height: 80px !important; margin: 0 !important; }
  .sidebar > p { text-align: left; margin-bottom: 0.3em !important; }
  .btn-cv { width: auto; padding: 0.4em 1.2em; }
  #main { padding: 1.5em 1.5em 1.5em; }
  .featured-projects { grid-template-columns: 1fr; }
  .award-card { flex-direction: column; gap: 0.2em; }
  .award-card .award-year { min-width: 0; }
  .news-item { gap: 1em; }
  .news-date { min-width: 4em !important; }
}

@media screen and (max-width: 600px) {
  .page-shell { padding: 0.4em 0.3em 1.5em; }
  .page-card { border-radius: 8px; }
  .navigation-wrapper {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5em;
  }
  .navigation-wrapper.scrolled {
    margin-left: -0.3em !important; margin-right: -0.3em !important;
    padding: 0.5em 0.3em !important; width: calc(100% + 0.6em) !important;
  }
  .top-navigation li { margin-right: 12px !important; font-size: 0.76em !important; }
  .lang-toggle { padding-left: 10px !important; }
  h1 { font-size: 1.35rem !important; }
  h2 { font-size: 1.15rem !important; }
  #main { padding: 1.2em 1em 1.2em; }
  img.floatpic { width: 40% !important; }
  .stats-row { flex-wrap: wrap; border-radius: 6px; }
  .stat-item { min-width: 45%; }
  .stat-number { font-size: 1.4rem !important; }
  .img-row { flex-direction: column; }
  .contact-box { padding: 1.2em 1em; }
  .pub-card { padding: 0.9em 1em; }
  .news-item { flex-direction: column; gap: 0.15em; }
  .news-date { min-width: 0 !important; }
}

@media screen and (max-width: 420px) {
  img.floatpic { float: none !important; width: 55% !important; display: block; margin: 0 auto 1em !important; }
  .sidebar { padding: 1.2em 1em 1em; }
}