:root {
  color-scheme: light dark;
  --bg: #f5f1ea;
  --surface: #fffdf8;
  --ink: #161410;
  --ink-soft: #3b362d;
  --muted: #6a6357;
  --line: rgba(22, 20, 16, 0.12);
  --line-strong: rgba(22, 20, 16, 0.26);
  --accent: #b33227;
  --accent-soft: rgba(179, 50, 39, 0.1);
  --accent-ink: #fff8f2;
  --wash: rgba(120, 108, 86, 0.08);
  --header-bg: rgba(245, 241, 234, 0.76);
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 30px 80px -50px rgba(30, 24, 16, 0.45);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC",
    "SimSun", Georgia, "Times New Roman", serif;
  --max: 68rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --ease: cubic-bezier(0.22, 0.75, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0c0a;
    --surface: #171511;
    --ink: #f3eee4;
    --ink-soft: #d8d1c4;
    --muted: #9d9587;
    --line: rgba(243, 238, 228, 0.13);
    --line-strong: rgba(243, 238, 228, 0.28);
    --accent: #e06555;
    --accent-soft: rgba(224, 101, 85, 0.14);
    --accent-ink: #1a0f0c;
    --wash: rgba(214, 202, 180, 0.05);
    --header-bg: rgba(13, 12, 10, 0.76);
    --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset,
      0 40px 100px -60px rgba(0, 0, 0, 0.9);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(70rem 45rem at 88% -12%, var(--accent-soft), transparent 62%),
    radial-gradient(55rem 35rem at -12% 12%, var(--wash), transparent 60%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
  body::before {
    filter: invert(1);
    opacity: 0.035;
  }
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  border-radius: 0.5rem;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.85rem;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 1rem;
}

.page {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-inline: calc(var(--gutter) * -1);
  padding: 1rem var(--gutter);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  justify-self: start;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 0.32rem;
  background: var(--accent);
  box-shadow: 0 6px 18px -6px var(--accent);
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 0.28rem;
  height: 0.28rem;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #fff;
}

.brand-name {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 2.5vw, 2rem);
}

.site-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.site-nav a span {
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 0.72rem;
  font-style: italic;
  opacity: 0.85;
}

.site-nav a:hover {
  color: var(--ink);
}

.header-contact {
  grid-column: 3;
  justify-self: end;
  padding: 0.48rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.header-contact:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 4vw, 4rem);
  min-height: min(76vh, 46rem);
  padding-block: clamp(4rem, 11vh, 7rem) clamp(4rem, 9vh, 6rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}

.status-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  animation: pulse 2.8s ease-in-out infinite;
}

.hero h1 {
  margin: 1.4rem 0 0;
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: 0.015em;
}

.hero h1 .line {
  display: block;
  white-space: nowrap;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  max-width: 33rem;
  margin: 1.6rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.85;
  text-wrap: pretty;
}

.nowrap {
  white-space: nowrap;
}

.lede strong {
  color: var(--ink);
  font-weight: 600;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.button:hover {
  background: var(--accent);
  color: var(--accent-ink);
  transform: translateY(-2px);
}

.text-link {
  padding-bottom: 0.15rem;
  background-image: linear-gradient(var(--line-strong), var(--line-strong));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 100% 1px;
  color: var(--ink);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.25s var(--ease), background-image 0.25s var(--ease);
}

.text-link:hover {
  background-image: linear-gradient(var(--accent), var(--accent));
  color: var(--accent);
}

.hero-visual {
  display: flex;
  justify-content: center;
  color: var(--ink);
}

.hero-visual svg {
  width: min(100%, 26rem);
  height: auto;
  overflow: visible;
}

.glow-a {
  stop-color: var(--accent);
  stop-opacity: 0.18;
}

.glow-b {
  stop-color: var(--accent);
  stop-opacity: 0;
}

.ring-a {
  stop-color: currentColor;
  stop-opacity: 0.5;
}

.ring-b {
  stop-color: currentColor;
  stop-opacity: 0.12;
}

.ring-c {
  stop-color: currentColor;
  stop-opacity: 0;
}

.accent-dot {
  fill: var(--accent);
}

.orbit {
  transform-box: view-box;
  transform-origin: 210px 210px;
  animation: spin 48s linear infinite;
}

.orbit-reverse {
  animation-duration: 72s;
  animation-direction: reverse;
}

.section {
  scroll-margin-top: 6rem;
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-index {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.section-note {
  margin: 0 0 0 auto;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.project-list {
  border-bottom: 1px solid var(--line);
}

.project {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr) auto;
  align-items: start;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 2.6vw, 2.25rem) clamp(0.5rem, 1.5vw, 1.25rem);
  border-top: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: background-color 0.35s var(--ease), padding-left 0.35s var(--ease);
}

.project:hover {
  background: linear-gradient(90deg, var(--accent-soft), transparent 65%);
  padding-left: clamp(1rem, 2.5vw, 2rem);
}

.project-index {
  padding-top: 0.5rem;
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-style: italic;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.55rem;
}

.project-meta span {
  padding: 0.18rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
}

.project h3 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 0.25s var(--ease);
}

.project:hover h3 {
  color: var(--accent);
}

.project-arrow {
  font-family: var(--font-sans);
  font-size: 0.7em;
  transition: transform 0.3s var(--ease);
}

.project:hover .project-arrow {
  transform: translate(3px, -3px);
}

.project p {
  max-width: 44rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.85;
}

.project-status {
  align-self: center;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.project-status::before {
  content: "";
  display: inline-block;
  width: 0.34rem;
  height: 0.34rem;
  margin-right: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 0.05em;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: start;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.about-photo {
  margin: 0;
}

.about-photo picture {
  display: block;
}

.about-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  filter: saturate(0.95);
}

.about-photo figcaption {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.about-photo figcaption::before {
  content: "";
  width: 0.3rem;
  height: 0.3rem;
  border-radius: 50%;
  background: var(--accent);
}

.about-body .facts {
  margin-top: 2rem;
}

.about-lead {
  margin: 0 0 1.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  line-height: 1.65;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.about-body p:not(.about-lead) {
  margin: 0 0 1rem;
  color: var(--muted);
  line-height: 1.9;
  text-wrap: pretty;
}

.facts {
  margin: 0;
  border-top: 1px solid var(--line);
}

.facts div {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.facts dt {
  padding-top: 0.25rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.facts dd {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

.section-contact {
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 4.5rem);
  border: 1px solid var(--line);
  border-radius: clamp(1rem, 2vw, 1.5rem);
  background:
    radial-gradient(55rem 22rem at 100% 0%, var(--accent-soft), transparent 60%),
    var(--surface);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  margin: 0.75rem 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.8vw, 3.6rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.contact-lede {
  max-width: 30rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.contact-mail {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 2.25rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.6vw, 1.9rem);
  text-decoration: none;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.contact-mail:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.contact-mail span {
  transition: transform 0.3s var(--ease);
}

.contact-mail:hover span {
  transform: translateX(0.35rem);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-block: 2.25rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
}

.not-found {
  grid-template-columns: 1fr;
  align-content: center;
  min-height: 62vh;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 var(--accent-soft);
  }
  50% {
    box-shadow: 0 0 0 6px transparent;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * {
    animation: rise 0.9s var(--ease) both;
  }

  .hero-copy > :nth-child(1) {
    animation-delay: 0.05s;
  }

  .hero-copy > :nth-child(2) {
    animation-delay: 0.12s;
  }

  .hero-copy > :nth-child(3) {
    animation-delay: 0.2s;
  }

  .hero-copy > :nth-child(4) {
    animation-delay: 0.28s;
  }

  .hero-visual {
    animation: fade 1.6s ease both 0.25s;
  }

  .hero-visual svg {
    animation: float 10s ease-in-out infinite;
  }
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .section {
      animation: rise linear both;
      animation-range: entry 8% cover 30%;
      animation-timeline: view();
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    min-height: auto;
    padding-block: clamp(3.5rem, 10vh, 6rem) 4.5rem;
  }

  .hero-visual {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    max-width: 26rem;
  }
}

@media (max-width: 720px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-contact {
    display: none;
  }

  .site-nav {
    justify-self: end;
  }

  .section-note {
    display: none;
  }

  .project {
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: 1rem;
    padding-inline: 0.25rem;
  }

  .project:hover {
    padding-left: 0.5rem;
  }

  .project-status {
    display: none;
  }
}

@media (max-width: 560px) {
  .site-nav {
    gap: 1rem;
  }

  .site-nav a span {
    display: none;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 11.5vw, 3.4rem);
  }

  .eyebrow {
    letter-spacing: 0.1em;
  }

  .section-head {
    gap: 0.75rem;
  }

  .contact-card {
    padding: 1.75rem 1.35rem 2rem;
  }

  .contact-mail {
    font-size: 1.15rem;
  }

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