:root {
  --bg: #09111d;
  --bg-soft: rgba(11, 23, 38, 0.72);
  --panel: rgba(246, 242, 233, 0.08);
  --panel-strong: rgba(246, 242, 233, 0.12);
  --line: rgba(240, 226, 200, 0.18);
  --text: #f5f1e8;
  --muted: #b8c0cc;
  --accent: #8fd6c7;
  --accent-strong: #56b4a7;
  --warm: #f1c97b;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --content-width: min(1180px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Outfit", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(39, 81, 167, 0.52), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(17, 129, 123, 0.28), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(217, 168, 74, 0.2), transparent 30%),
    linear-gradient(180deg, #08111b 0%, #0a1626 42%, #091019 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  position: relative;
}

.site-header,
.section,
.site-footer {
  width: var(--content-width);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 22px;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(9, 17, 29, 0.7);
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.site-header.is-scrolled {
  background: rgba(9, 17, 29, 0.88);
  border-color: rgba(241, 201, 123, 0.24);
}

.brand {
  font-family: "Noto Serif SC", serif;
  font-size: 1.15rem;
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.96rem;
}

.site-nav a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 5px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition:
    background 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.lang-link:hover,
.lang-link:focus-visible {
  color: var(--text);
}

.lang-link.is-active {
  background: rgba(241, 201, 123, 0.14);
  color: var(--text);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.header-cta,
.button.primary {
  background: linear-gradient(135deg, #f1c97b 0%, #d8a750 100%);
  color: #09111d;
  font-weight: 600;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

.header-cta:hover,
.button:hover,
.header-cta:focus-visible,
.button:focus-visible {
  transform: translateY(-2px);
}

.section {
  padding: 68px 0 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 30px;
  padding-top: 58px;
  align-items: center;
}

.hero-compact .hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-compact .eyebrow {
  margin-bottom: 10px;
}

.hero-profile-card {
  margin-top: 20px;
  padding: 20px 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.hero-profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 22px;
  margin-top: 18px;
}

.hero-profile-card .hero-profile-grid {
  margin-top: 0;
}

.hero-profile-item {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
}

.hero-profile-label {
  position: relative;
  color: var(--accent);
  font-size: 0.94rem;
  line-height: 1.7;
}

.hero-profile-label::after {
  content: "：";
}

.hero-profile-item strong,
.hero-profile-item a {
  display: block;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.7;
  word-break: break-word;
}

.hero-compact .hero-actions {
  margin-top: 16px;
}

.hero-compact .metric-grid {
  margin-top: 18px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(3.2rem, 6vw, 5rem);
  line-height: 1;
}

.hero-tagline {
  margin: 18px 0 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.16rem, 1.9vw, 1.72rem);
  line-height: 1.5;
  max-width: 13.5em;
}

.hero-summary,
.supporting-text,
.narrative p,
.timeline-item p,
.contact-meta,
.feature-list {
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.98rem;
}

.hero-summary {
  max-width: 42rem;
  margin: 16px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.metric-card,
.card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.metric-card {
  padding: 16px 16px;
}

.metric-card strong {
  display: block;
  font-size: 1.35rem;
  color: var(--warm);
}

.metric-card span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-visual {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portrait-card {
  width: min(100%, 430px);
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(241, 201, 123, 0.18);
  background:
    radial-gradient(circle at top right, rgba(86, 180, 167, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.portrait-frame {
  aspect-ratio: 4 / 5;
  border-radius: calc(var(--radius-lg) - 10px);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(143, 214, 199, 0.16), rgba(241, 201, 123, 0.18));
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: grid;
  gap: 4px;
}

.contact-list span,
.fact-row span,
.project-highlights span,
.award-year,
.timeline-meta,
.card-topline {
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-list strong,
.contact-list a {
  font-size: 0.96rem;
  line-height: 1.5;
}

.floating-note {
  position: absolute;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(9, 17, 29, 0.76);
  color: var(--text);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
  font-size: 0.9rem;
}

.note-one {
  top: 10%;
  right: 4%;
}

.note-two {
  bottom: 12%;
  left: -4%;
}

.section-heading {
  max-width: 700px;
}

.section-heading h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.78rem, 3vw, 2.7rem);
  line-height: 1.22;
}

.intro-grid,
.education-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  margin-top: 22px;
}

.card {
  padding: 22px;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(143, 214, 199, 0.1), transparent 40%, rgba(241, 201, 123, 0.08));
  opacity: 0.7;
  pointer-events: none;
}

.card > * {
  position: relative;
  z-index: 1;
}

.fact-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.fact-row div {
  display: grid;
  gap: 6px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-cloud span,
.course-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.88rem;
}

.focus-card h3,
.education-card h3,
.language-card h3,
.timeline-item h3,
.project-card h3,
.award-card h3 {
  margin: 0 0 14px;
  font-family: "Noto Serif SC", serif;
  font-size: 1.3rem;
  line-height: 1.35;
}

.feature-list {
  margin: 12px 0 0;
  padding-left: 18px;
}

.feature-list li + li {
  margin-top: 10px;
}

.card-topline,
.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.course-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.language-score {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0 12px;
}

.language-score div,
.project-highlights div,
.award-card {
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.language-score strong {
  display: block;
  margin-top: 6px;
  font-size: 1.7rem;
  color: var(--warm);
}

.timeline {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.timeline-item {
  padding-left: 28px;
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 32px;
  bottom: 32px;
  width: 2px;
  background: linear-gradient(180deg, rgba(143, 214, 199, 0.9), rgba(241, 201, 123, 0.2));
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 0 8px rgba(241, 201, 123, 0.12);
}

.project-card {
  margin-top: 22px;
}

.project-highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 8px;
}

.project-highlights strong {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
  line-height: 1.7;
}

.project-link {
  display: block;
  margin-top: 8px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.7;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  word-break: break-all;
}

.project-link:hover,
.project-link:focus-visible {
  color: var(--warm);
}

.awards-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.award-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.contact-section {
  padding-bottom: 60px;
}

.contact-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(241, 201, 123, 0.22);
  background:
    radial-gradient(circle at top right, rgba(86, 180, 167, 0.18), transparent 30%),
    linear-gradient(135deg, rgba(241, 201, 123, 0.08), rgba(255, 255, 255, 0.04));
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.28);
}

.contact-card h2 {
  margin: 4px 0 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.6rem, 2.4vw, 2.3rem);
  line-height: 1.32;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
}

.site-footer {
  padding: 0 0 28px;
  color: var(--muted);
  font-size: 0.92rem;
}

.not-found-page {
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding-bottom: 68px;
}

.not-found-card {
  max-width: 720px;
  margin: 0 auto;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .intro-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 22px;
  }

  .hero-visual {
    min-height: auto;
    padding-top: 8px;
  }

  .hero-profile-grid {
    grid-template-columns: 1fr;
  }

  .project-highlights,
  .metric-grid,
  .awards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .note-two {
    left: 0;
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 10px;
    padding: 14px 18px;
    border-radius: 26px;
  }

  .site-nav {
    display: none;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .section {
    padding-top: 56px;
  }

  .hero {
    padding-top: 52px;
  }

  .metric-grid,
  .project-highlights,
  .awards-grid,
  .language-score,
  .fact-row,
  .hero-profile-grid {
    grid-template-columns: 1fr;
  }

  .hero-profile-card {
    padding: 18px;
  }

  .hero-profile-item {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 8px;
  }

  .floating-note {
    position: static;
    margin-top: 10px;
  }

  .hero-visual {
    display: block;
  }

  .portrait-card {
    width: 100%;
  }

  .timeline-item {
    padding-left: 26px;
  }

  .timeline-item::after {
    left: 10px;
  }

  .timeline-item::before {
    left: 4px;
  }

  .contact-card,
  .card {
    padding: 20px;
  }

  .header-cta {
    min-height: 40px;
    padding: 0 16px;
  }
}