:root {
  --bg: #f4eee6;
  --bg-soft: rgba(255, 250, 243, 0.82);
  --surface: rgba(255, 251, 246, 0.76);
  --surface-strong: rgba(250, 244, 236, 0.94);
  --surface-deep: #ebe1d3;
  --text: #1d221d;
  --muted: #576157;
  --accent: #4c6555;
  --accent-soft: rgba(76, 101, 85, 0.12);
  --accent-warm: #a56a48;
  --line: rgba(29, 34, 29, 0.12);
  --line-strong: rgba(29, 34, 29, 0.2);
  --shadow: 0 24px 80px rgba(57, 46, 31, 0.12);
  --shadow-soft: 0 16px 44px rgba(57, 46, 31, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --container: min(1160px, calc(100vw - 40px));
  --serif: "Iowan Old Style", "Palatino Linotype", "Times New Roman", "Songti SC",
    serif;
  --sans: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(229, 196, 175, 0.58), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(164, 186, 172, 0.52), transparent 24%),
    linear-gradient(180deg, #f7f2ec 0%, #f1e8de 46%, #efe7dc 100%);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button {
  font: inherit;
}

.page-glow {
  position: fixed;
  inset: auto;
  width: 32rem;
  height: 32rem;
  border-radius: 50%;
  filter: blur(76px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

.page-glow-left {
  top: -10rem;
  left: -12rem;
  background: rgba(214, 171, 146, 0.48);
}

.page-glow-right {
  right: -8rem;
  top: 30vh;
  background: rgba(133, 167, 144, 0.42);
}

.container {
  width: var(--container);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section {
  padding: 5.5rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1rem 0 0;
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(248, 241, 233, 0.75);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand-cn {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.brand-en {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-nav a,
.language-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0 0.95rem;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition:
    color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover,
.language-toggle:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.46);
  transform: translateY(-1px);
}

.language-toggle {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.34);
  cursor: pointer;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 3rem;
  padding-top: 5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.35rem;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 2.6rem;
  height: 1px;
  background: currentColor;
}

.hero-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.hero-title strong {
  color: var(--accent);
  font-weight: 600;
}

.hero-body {
  max-width: 43rem;
  margin: 1.6rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-highlight {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 2rem 0 0;
}

.hero-chip {
  display: inline-flex;
  padding: 0.58rem 0.9rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
  color: var(--text);
  font-size: 0.9rem;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button-primary,
.button-secondary,
.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 3.15rem;
  padding: 0 1.2rem;
  border-radius: var(--radius-sm);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.button-primary {
  background: var(--text);
  color: #f8f3eb;
  box-shadow: 0 14px 28px rgba(29, 34, 29, 0.2);
}

.button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(29, 34, 29, 0.24);
}

.button-secondary,
.contact-link {
  background: rgba(255, 255, 255, 0.42);
  color: var(--text);
  border: 1px solid var(--line);
}

.button-secondary:hover,
.contact-link:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.64);
}

.site-nav a:focus-visible,
.language-toggle:focus-visible,
.button-primary:focus-visible,
.button-secondary:focus-visible,
.contact-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.2rem;
}

.stat-card {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--line);
}

.stat-card strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1;
  margin-bottom: 0.45rem;
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.portrait-frame {
  position: relative;
  max-width: 28rem;
  margin-left: auto;
  padding: 1rem;
  border-radius: 40px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.75), rgba(235, 225, 211, 0.45));
  border: 1px solid rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.portrait-backdrop {
  position: absolute;
  inset: 12% 10% auto auto;
  width: 10rem;
  height: 10rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(165, 106, 72, 0.32), transparent 65%);
  filter: blur(12px);
}

.portrait {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5.2;
  object-fit: cover;
  border-radius: 30px;
}

.hero-note,
.manifesto-shell,
.capability-card,
.featured-card,
.experiment-card,
.timeline-card,
.education-card,
.expression-card,
.contact-shell {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.hero-note {
  max-width: 22rem;
  margin: -4.2rem auto 0 0;
  padding: 1.25rem 1.3rem;
  border-radius: var(--radius-lg);
  position: relative;
  z-index: 2;
}

.note-label,
.section-kicker,
.card-kicker {
  display: inline-block;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.note-title {
  margin: 0.6rem 0 0;
  font-family: var(--serif);
  font-size: 1.2rem;
}

.note-copy,
.section-intro,
.card-copy,
.list-copy {
  color: var(--muted);
}

.note-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.note-list li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.note-list li::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  margin-top: 0.35rem;
  border-radius: 50%;
  background: var(--accent-warm);
  flex: 0 0 auto;
}

.section-manifesto {
  padding-top: 1rem;
}

.manifesto-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(16rem, 0.8fr);
  gap: 2rem;
  padding: 2.4rem;
  border-radius: var(--radius-xl);
}

.manifesto-quote {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.manifesto-copy {
  margin-top: 1.1rem;
  color: var(--muted);
  max-width: 44rem;
}

.manifesto-aside {
  padding: 1.3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.42);
  align-self: end;
}

.manifesto-aside strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--serif);
  font-size: 1.18rem;
}

.section-header {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.section-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.capability-grid,
.experiment-grid,
.expression-grid,
.journey-grid {
  display: grid;
  gap: 1.25rem;
}

.capability-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.capability-card,
.experiment-card,
.timeline-card,
.education-card,
.expression-card {
  border-radius: var(--radius-lg);
  padding: 1.4rem;
}

.capability-card {
  display: grid;
  gap: 0.8rem;
  min-height: 100%;
}

.capability-index {
  color: rgba(76, 101, 85, 0.38);
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
}

.card-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1.1;
}

.card-meta {
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.featured-grid {
  display: grid;
  gap: 1.35rem;
}

.featured-card {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(20rem, 0.92fr);
  gap: 1.4rem;
  padding: 1.6rem;
  border-radius: var(--radius-xl);
}

.featured-card:nth-child(even) {
  grid-template-columns: minmax(20rem, 0.92fr) minmax(0, 1.08fr);
}

.featured-card:nth-child(even) .featured-main {
  order: 2;
}

.featured-card:nth-child(even) .featured-side {
  order: 1;
}

.featured-main,
.featured-side {
  display: grid;
  gap: 1rem;
}

.featured-summary {
  margin: 0;
  font-size: 1.06rem;
  color: var(--text);
}

.tag-row,
.bullet-list,
.mini-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.tag-row li,
.mini-list li {
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.34);
  color: var(--muted);
  border: 1px solid rgba(29, 34, 29, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.38);
  cursor: default;
}

.bullet-list {
  display: grid;
  gap: 0.75rem;
}

.bullet-list li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--muted);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent-warm);
}

.side-panel {
  padding: 1.1rem 1.15rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--line);
}

.side-title {
  margin: 0 0 0.7rem;
  font-family: var(--serif);
  font-size: 1.1rem;
}

.experiment-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.experiment-card {
  display: grid;
  gap: 0.9rem;
  min-height: 100%;
}

.resource-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.35rem;
  padding: 0 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(76, 101, 85, 0.24);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.8),
    rgba(235, 245, 238, 0.92)
  );
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow:
    0 8px 18px rgba(76, 101, 85, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.65);
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.resource-link::after {
  content: "->";
  font-size: 0.78rem;
  letter-spacing: 0;
  opacity: 0.72;
}

.resource-link:hover,
.resource-link:focus-visible {
  transform: translateY(-1px);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.94),
    rgba(223, 238, 228, 0.98)
  );
  border-color: rgba(76, 101, 85, 0.34);
  box-shadow:
    0 12px 24px rgba(76, 101, 85, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.journey-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.journey-column {
  display: grid;
  gap: 1rem;
}

.timeline-card,
.education-card {
  position: relative;
  overflow: hidden;
}

.timeline-card::before,
.education-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.3rem;
  bottom: 1.3rem;
  width: 3px;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--accent), rgba(165, 106, 72, 0.5));
}

.timeline-card-inner,
.education-card-inner {
  padding-left: 1rem;
}

.time-label {
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.entry-title {
  margin: 0.4rem 0 0;
  font-family: var(--serif);
  font-size: 1.28rem;
}

.entry-subtitle {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.expression-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.expression-card {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.expression-quote {
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid rgba(76, 101, 85, 0.25);
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.7vw, 1.55rem);
  line-height: 1.38;
  max-width: 30ch;
  text-wrap: pretty;
}

.expression-snippets {
  display: grid;
  gap: 0.95rem;
}

.snippet {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  min-height: 8.9rem;
  padding: 1rem 1.05rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--line);
  color: var(--muted);
}

.snippet strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.snippet p {
  margin: 0;
  text-wrap: pretty;
}

#expression .section-title {
  max-width: 24ch;
}

#expression .section-intro {
  max-width: 50rem;
}

.section-contact {
  padding-top: 3.5rem;
  padding-bottom: 5rem;
}

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
  column-gap: 2.4rem;
  row-gap: 1rem;
  align-items: start;
  padding: 2.2rem;
  border-radius: 38px;
}

.contact-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  max-width: none;
  text-wrap: pretty;
  grid-column: 1;
}

.contact-copy {
  grid-column: 2;
  max-width: 34rem;
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.contact-shell .section-kicker {
  grid-column: 1;
}

.contact-links {
  grid-column: 2;
  margin-top: 0.4rem;
}

.contact-link {
  flex-direction: column;
  align-items: flex-start;
  min-width: 14rem;
}

.contact-link strong {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-link span {
  color: var(--text);
  font-size: 1rem;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-signoff {
  font-family: var(--serif);
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

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

@media (max-width: 1120px) {
  .hero,
  .featured-card,
  .featured-card:nth-child(even) {
    grid-template-columns: 1fr;
  }

  .featured-card:nth-child(even) .featured-main,
  .featured-card:nth-child(even) .featured-side {
    order: initial;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .experiment-grid,
  .expression-grid,
  .journey-grid,
  .manifesto-shell {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 36rem;
    margin: 0 auto;
  }

  .portrait-frame {
    margin: 0 auto;
  }

  .hero-note {
    margin: -3.4rem auto 0;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 4.25rem 0;
  }

  .site-header {
    padding-top: 0.7rem;
  }

  .header-inner {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.25rem;
  }

  .language-toggle {
    margin-top: 0.2rem;
  }

  .hero {
    padding-top: 3.5rem;
    gap: 2rem;
  }

  .hero-title {
    font-size: clamp(2.45rem, 12vw, 4rem);
  }

  .contact-title {
    max-width: 100%;
    font-size: clamp(2rem, 10vw, 2.85rem);
  }

  .hero-body,
  .contact-copy {
    font-size: 1rem;
  }

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

  .capability-grid,
  .experiment-grid {
    grid-template-columns: 1fr;
  }

  .manifesto-shell,
  .featured-card,
  .contact-shell {
    padding: 1.4rem;
  }

  .contact-shell {
    grid-template-columns: 1fr;
    column-gap: 0;
  }

  .contact-shell .section-kicker,
  .contact-title,
  .contact-copy,
  .contact-links {
    grid-column: 1;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}