@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Serif+TC:wght@400;500;700&family=Vollkorn:ital,wght@0,400;0,600;0,700;1,400;1,600&display=swap");

:root {
  --bg: #4b647f7d;
  --surface: #f1f1f2;
  --surface-soft: #cfd5d8;
  --text: #21303a;
  --muted: #50606a;
  --quiet: #758189;
  --primary: #2f4652;
  --primary-strong: #1f333d;
  --accent: #465c69;
  --accent-soft: #cbd3d7;
  --line: #4f678084;
  --line-strong: #f1f1f2;
  --shadow: 0 14px 34px rgba(24, 35, 42, 0.22);
  --radius: 8px;
  --content: 900px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: transparent !important;
  color: var(--text) !important;
  font-family: "Vollkorn", "Noto Serif TC", Georgia, serif !important;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--primary);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
  transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

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

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94) !important;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 14px rgba(70, 92, 105, 0.08) !important;
  padding: 0.95rem 1.25rem !important;
  text-align: center;
  backdrop-filter: blur(14px);
}

header nav,
nav.compact-nav,
nav.sticky-nav {
  display: flex !important;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

nav a,
nav.compact-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin: 0 !important;
  padding: 0.25rem 0.72rem;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--muted) !important;
  font-size: 1rem;
  font-weight: 600 !important;
  line-height: 1.2;
  text-decoration: none !important;
}

nav a:hover,
nav a:focus-visible,
nav a.active {
  background: transparent;
  border-bottom-color: var(--primary);
  color: var(--primary-strong) !important;
  outline: none;
}

main,
.container,
.page-wrap {
  width: min(var(--content), calc(100% - 2rem)) !important;
  max-width: var(--content) !important;
  margin: 2.1rem auto !important;
  padding: 0 !important;
}

main .container,
.container .container {
  width: 100% !important;
  margin: 0 !important;
}

.container {
  display: flex;
  flex-wrap: wrap;
  gap: 2.25rem !important;
  align-items: flex-start;
  justify-content: center;
}

main.container {
  display: block;
}

.main-content,
.info {
  flex: 1 1 560px;
  min-width: 0;
}

.info p {
  color: #f1f1f2 !important;
}

.avatar {
  flex: 0 0 220px !important;
  text-align: center;
}

.avatar img {
  width: 190px !important;
  height: 190px !important;
  object-fit: cover;
  border: 3px solid var(--surface) !important;
  border-radius: 999px !important;
  box-shadow: 0 0 0 1px var(--line), 0 8px 24px rgba(70, 92, 105, 0.13);
}

h1,
h2,
h3 {
  color: var(--primary-strong);
  line-height: 1.22;
  letter-spacing: 0;
}

h1 {
  margin: 0 0 1.25rem !important;
  padding: 0 0 0.55rem !important;
  border-bottom: 2px solid var(--line-strong) !important;
  font-size: clamp(2rem, 1.65rem + 1.2vw, 2.55rem) !important;
  font-weight: 700;
}

h2 {
  margin: 1.9rem 0 0.55rem !important;
  color: var(--primary-strong) !important;
  font-size: 1.32rem !important;
  font-weight: 700;
}

p {
  margin: 0.55rem 0;
  color: var(--muted) !important;
}

ul {
  margin: 0.55rem 0 0;
  padding-left: 1.25rem;
}

li {
  margin: 0.4rem 0;
  color: var(--muted) !important;
}

strong {
  color: var(--text);
  font-weight: 600;
}

code {
  padding: 0.1rem 0.28rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #f4f7f8;
  color: var(--primary-strong);
  font-size: 0.92em;
}

.email {
  display: inline-flex;
  justify-content: center;
  max-width: 100%;
  margin: 0.7rem auto 0 !important;
  color: var(--primary-strong) !important;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 0.8rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px !important;
  height: 34px !important;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary-strong) !important;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(70, 92, 105, 0.09);
}

.icon-btn:hover {
  background: var(--primary);
  color: #f1f1f2 !important;
  transform: translateY(-1px);
}

.icon-btn svg {
  width: 17px !important;
  height: 17px !important;
  fill: currentColor;
}

.intro,
.news,
.pubs,
.keywords,
.project,
.role,
.entry {
  background: var(--surface);
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow);
}

.intro {
  width: min(var(--content), calc(100% - 2rem));
  max-width: var(--content) !important;
  margin: 0 auto 3rem !important;
  padding: 1.35rem 1.55rem !important;
}

.news {
  width: min(var(--content), calc(100% - 2rem));
  max-width: var(--content) !important;
  margin: 0 auto 1rem !important;
  padding: 1.05rem 1.3rem !important;
}

.news ul {
  margin: 0;
  padding-left: 1.15rem;
}

.news li {
  margin: 0;
  color: #50606a !important;
}

.news-date {
  color: var(--primary-strong);
  font-weight: 700;
  margin-right: 0.35rem;
}

.pubs,
.keywords {
  margin-top: 1rem !important;
  padding: 1.2rem 1.35rem !important;
}

.project,
.role,
.entry {
  margin: 0 0 1.05rem !important;
  padding: 1.18rem 1.35rem;
}

.project h2,
.role h2,
.entry h2,
.pubs h2,
.keywords h2,
.news h2,
.intro h2 {
  margin-top: 0 !important;
  padding-bottom: 0;
  border-bottom: none;
}

.project p,
.role p,
.entry p,
.summary,
.meta {
  color: var(--muted) !important;
}

.meta {
  margin-bottom: 0.55rem;
  font-size: 0.94rem;
}

.summary {
  line-height: 1.68;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1rem;
  margin-left: 0 !important;
}

.timeline::before,
.entry::before {
  display: none !important;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.75rem;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.34rem 0.68rem !important;
  border: 1px solid var(--primary-strong) !important;
  border-radius: 7px !important;
  background: var(--surface-soft) !important;
  color: var(--primary-strong) !important;
  font-size: 0.91rem;
  font-weight: 650;
  text-decoration: none;
}

.btn-link:hover {
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
  color: #07534e !important;
}

details {
  margin-top: 0.7rem;
}

details > summary {
  cursor: pointer;
  color: var(--primary-strong) !important;
  font-weight: 700;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)) !important;
  gap: 0.85rem !important;
  margin-top: 0.9rem !important;
}

.gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  background: #f1f1f2;
}

.gallery img {
  display: block;
  width: 100%;
  height: 210px !important;
  object-fit: cover;
}

.gallery figcaption {
  padding: 0.55rem 0.65rem 0.7rem !important;
  color: var(--muted) !important;
  font-size: 0.9rem;
  text-align: center;
}

footer {
  width: min(var(--content), calc(100% - 2rem));
  margin: 3rem auto 1.5rem;
  color: var(--quiet);
  text-align: center;
}

#toggle-mode {
  min-height: 34px;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

@media (max-width: 768px) {
  body {
    font-size: 15.5px;
  }

  header {
    padding: 0.65rem 0.75rem !important;
  }

  header nav,
  nav.sticky-nav {
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  header nav::-webkit-scrollbar,
  nav.sticky-nav::-webkit-scrollbar {
    display: none;
  }

  nav a {
    flex: 0 0 auto;
    min-height: 34px;
    padding: 0.32rem 0.62rem;
    font-size: 0.9rem;
  }

  main,
  .container,
  .page-wrap,
  .intro {
    width: min(100% - 1rem, var(--content)) !important;
  }

  .container {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 1.4rem !important;
  }

  .avatar {
    flex-basis: auto !important;
  }

  .avatar img {
    width: 148px !important;
    height: 148px !important;
  }

  .project,
  .role,
  .entry,
  .intro,
  .pubs,
  .keywords {
    padding: 1rem !important;
  }

  .gallery {
    grid-template-columns: 1fr !important;
  }

  .gallery img {
    height: 178px !important;
  }
}