@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,500;0,700;1,300;1,500&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

:root {
  --ink: #000000;
  --paper: #ffffff;
  --soft: #f2f1ee;
  --mute: #555555;
  --hair: #bfbfbf;
  --serif: 'Cormorant Garamond', 'Crimson Pro', Georgia, 'Songti SC', 'SimSun', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;
  --bar: 4.25rem;
  --pad: clamp(1rem, 4vw, 3rem);
}

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

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

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

a { color: var(--ink); }
img { max-width: 100%; height: auto; }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.mark {
  position: fixed;
  top: 1rem;
  left: var(--pad);
  z-index: 60;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--paper);
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1;
  text-decoration: none;
  transition: transform 0.22s ease;
}

.mark:hover { transform: translateY(-2px); }
.mark img { width: 100%; height: 100%; object-fit: cover; display: block; }

.bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  justify-content: flex-end;
  padding: 0.45rem var(--pad);
  background: var(--paper);
  border-top: 1px solid var(--ink);
}

.bar nav {
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.bar nav::-webkit-scrollbar { display: none; }

.bar nav p {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin: 0;
  white-space: nowrap;
}

.bar a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.7rem;
  color: var(--ink);
  font-size: 1rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

.bar a:hover,
.bar a:focus-visible,
.bar a.on {
  background: var(--ink);
  color: var(--paper);
}

.bar a.cta {
  margin-left: 0.3rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0 1.1rem;
}

.bar a.cta:hover,
.bar a.cta:focus-visible {
  background: var(--paper);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}

main {
  padding-top: clamp(4.5rem, 11vh, 7rem);
  padding-bottom: calc(var(--bar) + 3rem);
}

.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  min-height: calc(100vh - 11rem);
  padding: 1rem 0 2.5rem;
  border-bottom: 1px solid var(--ink);
}

.hero-copy { max-width: 46ch; }

h1 {
  margin: 0 0 1.25rem;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  max-width: 46ch;
  color: #333333;
  font-size: 1.0625rem;
  line-height: 1.7;
}

.hero-fig {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--soft);
}

.hero-fig img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

.fig-fill {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--ink);
}

.pin {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 15rem;
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(2rem, 6vw, 3.5rem) 0 0;
}

.doc {
  min-width: 0;
  max-width: 70ch;
}

.doc div {
  padding: 0 0 clamp(2rem, 5vw, 3rem);
  scroll-margin-top: 6rem;
}

.doc div + div {
  padding-top: clamp(2rem, 5vw, 3rem);
  border-top: 1px solid var(--ink);
}

.doc h2 {
  margin: 0 0 0.85rem;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.doc h2 + .subtitle {
  margin: 0 0 1.5rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--mute);
}

.doc h3 {
  margin: 1.75rem 0 0.6rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}

.doc p {
  margin: 0 0 1.2rem;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.doc ul,
.doc ol {
  margin: 0 0 1.2rem;
  padding-left: 1.3rem;
  line-height: 1.8;
}

.doc li { margin-bottom: 0.45rem; }

.doc a {
  text-decoration: underline;
  text-underline-offset: 0.2em;
  transition: background-color 0.22s ease;
}

.doc a:hover { background: var(--ink); color: var(--paper); }

.doc blockquote {
  margin: 1.5rem 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--ink);
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.5;
}

.doc img {
  display: block;
  margin: 1.5rem 0;
  border: 1px solid var(--ink);
}

.doc hr {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid var(--ink);
}

.doc table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-size: 1rem;
}

.doc th,
.doc td {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--ink);
  text-align: left;
  vertical-align: top;
}

.rail {
  position: sticky;
  top: 5.5rem;
  align-self: start;
  padding-left: 1.5rem;
  border-left: 1px solid var(--ink);
}

.rail h2 {
  margin: 0 0 0.3rem;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.rail .subtitle {
  margin: 0 0 1.1rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.125rem;
  color: var(--mute);
}

.rail ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rail li { border-top: 1px solid var(--hair); }

.rail a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.55rem 0;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.4;
  transition: padding-left 0.22s ease, font-weight 0.22s ease;
}

.rail a:hover {
  padding-left: 0.4rem;
  font-weight: 600;
}

.foot {
  padding: 2.5rem var(--pad) calc(var(--bar) + 2rem);
  border-top: 1px solid var(--ink);
}

.f-brand {
  margin: 0 0 1.75rem;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 13vw, 8rem);
  line-height: 0.92;
  letter-spacing: -0.03em;
}

.f-brand a { text-decoration: none; }

.f-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--ink);
}

.f-row nav { min-width: 0; }

.f-row nav p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.1rem;
  margin: 0;
}

.f-row a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.6rem;
  text-decoration: none;
  transition: background-color 0.22s ease, color 0.22s ease;
}

.f-row a:hover,
.f-row a:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.copy {
  margin: 0;
  font-size: 1rem;
  color: var(--mute);
}

html.js .doc div {
  opacity: 0;
  transform: translateY(18px);
}

html.js .doc div.in {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s ease, transform 0.55s ease;
}

@media (max-width: 880px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    gap: 1.5rem;
  }

  .hero-fig { aspect-ratio: 3 / 2; order: 2; }
  .hero-copy { max-width: none; order: 1; }

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

  .doc { max-width: none; }

  .rail {
    position: static;
    padding: 1.25rem 0 0;
    border-left: 0;
    border-top: 1px solid var(--ink);
  }

  .foot { padding-bottom: calc(var(--bar) + 1.5rem); }
}

@media (max-width: 480px) {
  .bar { padding: 0.4rem 0.75rem; }
  .bar a { padding: 0 0.6rem; }
  .bar a.cta { padding: 0 0.75rem; }
  .pin { left: 0.75rem; bottom: 0.75rem; }
}

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

  html.js .doc div {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

button[aria-expanded]{min-width:44px;min-height:44px}