:root {
  --bg: #f9f7f2;
  --surface: #ffffff;
  --surface-alt: #f5f2eb;
  --fg: #1c1a18;
  --fg-soft: #3d3935;
  --muted: #8a8278;
  --muted-light: #b8b0a6;
  --border: #e5e0d8;
  --border-strong: #d0c9bf;
  --accent: #9b7b4a;
  --accent-dim: #c4a96a;
  --accent-bright: #b8942e;
  --brand: #991b1b;
  --brand-deep: #7f1d1d;
  --font-display: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, monospace;
  --page-w: 80rem;
  --page-pad: clamp(1.5rem, 5vw, 5rem);
  --section-gap: clamp(4.5rem, 9vw, 8rem);
  --ease: cubic-bezier(.44, 0, .56, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  background: var(--bg);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg-soft);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: .01em;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration-thickness: .06em;
  text-underline-offset: .22em;
}
button, a {
  -webkit-tap-highlight-color: transparent;
}
button:focus-visible, a:focus-visible, summary:focus-visible {
  outline: .18rem solid var(--accent-bright);
  outline-offset: .2rem;
}
h1, h2, h3, h4 {
  margin: 0;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.15;
}
p, ul, ol {
  margin-block: 0 1.25rem;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .65rem 1rem;
  background: var(--fg);
  color: var(--surface);
  transform: translateY(-180%);
}
.skip-link:focus {
  transform: translateY(0);
}
.page {
  width: min(100%, var(--page-w));
  margin-inline: auto;
  padding-inline: var(--page-pad);
}
.nav {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--border-strong) 70%, transparent);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(1rem);
}
.nav-inner {
  display: flex;
  min-height: 5.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nav-logo {
  display: inline-flex;
  width: min(13rem, 48vw);
  align-items: center;
}
.nav-logo img {
  width: 100%;
  height: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  font-size: .875rem;
}
.nav-links a {
  position: relative;
  text-decoration: none;
}
.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: -.6rem;
  left: 0;
  height: 1px;
  background: var(--accent);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s var(--ease);
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-cta {
  padding: .65rem 1rem;
  border: 1px solid var(--brand);
  color: var(--brand);
}
.menu-button {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--fg);
  font: inherit;
}
.cover {
  position: relative;
  overflow: hidden;
  min-height: min(56rem, calc(100svh - 5.25rem));
  border-bottom: 1px solid var(--border);
}
.cover::before {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, color-mix(in srgb, var(--border) 45%, transparent) 1px, transparent 1px), linear-gradient(to bottom, color-mix(in srgb, var(--border) 35%, transparent) 1px, transparent 1px);
  background-size: 8rem 8rem;
  content: "";
  mask-image: linear-gradient(to bottom, #000, transparent 84%);
  pointer-events: none;
}
.cover-grid {
  position: relative;
  display: grid;
  min-height: inherit;
  grid-template-columns: minmax(0, 1.15fr) minmax(19rem, .65fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: center;
  padding-block: clamp(4rem, 10vw, 8rem);
}
.cover-kicker, .eyebrow, .section-num, .label-mono {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.cover-title {
  max-width: 13ch;
  margin-block: 1.25rem 2rem;
  font-size: clamp(3rem, 7.4vw, 7.2rem);
  line-height: .98;
}
.cover-title em {
  color: var(--accent);
  font-weight: 400;
}
.cover-desc {
  max-width: 43rem;
  color: var(--fg-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: .7rem 1.25rem;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--surface);
  font-size: .9rem;
  text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.button:hover {
  border-color: var(--brand);
  background: var(--brand);
}
.button-secondary {
  background: transparent;
  color: var(--fg);
}
.button-secondary:hover {
  color: var(--surface);
}
.hero-visual {
  position: relative;
  align-self: stretch;
  min-height: 34rem;
  background: var(--fg);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .76;
}
.hero-visual::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--fg) 78%, transparent), transparent 56%);
  content: "";
}
.hero-stat {
  position: absolute;
  z-index: 1;
  right: 1.5rem;
  bottom: 1.5rem;
  left: 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  color: var(--surface);
}
.hero-stat strong {
  display: block;
  color: var(--accent-dim);
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  line-height: 1;
}
.hero-stat span {
  font-size: .75rem;
}
.spread, .spread-alt {
  padding-block: var(--section-gap);
}
.spread-alt {
  background: var(--surface-alt);
}
.section-hd {
  display: grid;
  grid-template-columns: minmax(16rem, .62fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 7rem);
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.section-title {
  margin-top: .65rem;
  font-size: clamp(2.25rem, 5vw, 4.7rem);
}
.section-intro {
  max-width: 45rem;
  font-size: clamp(1rem, 1.5vw, 1.18rem);
}
.accent-line {
  width: 4.5rem;
  height: 1px;
  margin-bottom: 1.5rem;
  background: var(--accent);
}
.prose {
  max-width: 48rem;
}
.prose-wide {
  max-width: 62rem;
}
.prose h2, .prose h3, .prose h4, .content-section h2, .content-section h3, .content-section h4 {
  margin-block: 2.5rem 1rem;
}
.prose h2, .content-section h2 {
  font-size: clamp(1.85rem, 3vw, 2.8rem);
}
.prose h3, .content-section h3 {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}
.prose h4, .content-section h4 {
  font-size: 1.12rem;
}
.prose ul, .prose ol, .content-section ul, .content-section ol {
  padding-left: 1.35rem;
}
.prose li, .content-section li {
  margin-bottom: .75rem;
}
.problem-grid, .practice-grid, .team-grid, .office-grid, .case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border-strong);
  border-left: 1px solid var(--border-strong);
}
.problem-card, .practice-card, .office-card, .case-card {
  min-height: 16rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface) 45%, transparent);
  transition: background .25s var(--ease), color .25s var(--ease);
}
.problem-card:hover, .practice-card:hover, .office-card:hover, .case-card:hover {
  background: var(--fg);
  color: var(--surface-alt);
}
.problem-card:hover h3, .practice-card:hover h3, .office-card:hover h3, .case-card:hover h3 {
  color: var(--surface);
}
.card-number {
  display: block;
  margin-bottom: 3rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .78rem;
}
.problem-card h3, .practice-card h3, .office-card h3, .case-card h3 {
  margin-bottom: 1rem;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
}
.card-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-size: .85rem;
}
.team-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.team-card {
  position: relative;
  overflow: hidden;
  min-height: 31rem;
  border-right: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
  background: var(--fg);
}
.team-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.02);
  transition: transform .55s var(--ease), filter .55s var(--ease);
}
.team-card:hover img {
  filter: saturate(1) contrast(1.02);
  transform: scale(1.025);
}
.team-card::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--fg) 94%, transparent), transparent 66%);
  content: "";
}
.team-card-content {
  position: absolute;
  z-index: 1;
  right: 1.35rem;
  bottom: 1.35rem;
  left: 1.35rem;
  color: var(--surface-alt);
}
.team-card h3 {
  color: var(--surface);
  font-size: 1.75rem;
}
.team-card p {
  margin: .35rem 0 0;
  color: var(--muted-light);
  font-size: .82rem;
}
.team-card a {
  position: absolute;
  z-index: 2;
  inset: 0;
}
.team-card a span {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  clip: rect(0 0 0 0);
}
.page-hero {
  border-bottom: 1px solid var(--border);
  padding-block: clamp(4rem, 10vw, 8rem);
}
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-bottom: 2.5rem;
  color: var(--muted);
  font-size: .78rem;
}
.breadcrumbs a {
  text-decoration: none;
}
.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, .38fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: end;
}
.page-title {
  max-width: 15ch;
  font-size: clamp(2.8rem, 7vw, 6.7rem);
}
.page-lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, .36fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 8vw, 8rem);
  align-items: start;
}
.detail-aside {
  position: sticky;
  top: 7rem;
}
.detail-photo {
  aspect-ratio: 4 / 5;
  width: 100%;
  object-fit: cover;
  background: var(--fg);
}
.detail-meta {
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--border-strong);
}
.detail-meta strong {
  display: block;
  color: var(--fg);
}
.related-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border-strong);
}
.related-list a {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  gap: 1rem;
  align-items: center;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--border-strong);
  text-decoration: none;
}
.related-list a:hover {
  color: var(--brand);
}
.callout {
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--fg);
  color: var(--surface-alt);
}
.callout h2 {
  max-width: 18ch;
  color: var(--surface);
  font-size: clamp(2rem, 4vw, 3.8rem);
}
.callout p {
  max-width: 46rem;
  margin-top: 1rem;
  color: var(--muted-light);
}
.callout .button {
  border-color: var(--accent-dim);
  background: var(--accent);
  color: var(--fg);
}
.office-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.office-card {
  min-height: 13rem;
}
.office-card h3 {
  font-size: 2rem;
}
.case-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.case-card {
  min-height: 19rem;
}
.case-card .case-owner {
  color: var(--accent);
  font-size: .78rem;
}
.colophon {
  padding-block: clamp(3.5rem, 8vw, 6rem) 2rem;
  background: var(--fg);
  color: var(--muted-light);
}
.colophon-grid {
  display: grid;
  grid-template-columns: minmax(16rem, .8fr) repeat(3, minmax(8rem, .3fr));
  gap: clamp(2rem, 6vw, 6rem);
}
.colophon-logo {
  width: min(17rem, 80%);
  filter: brightness(0) invert(1);
}
.colophon h2, .colophon h3 {
  color: var(--surface);
}
.colophon h3 {
  margin-bottom: 1rem;
  font-family: var(--font-body);
  font-size: .8rem;
  letter-spacing: .12em;
}
.colophon a {
  display: block;
  margin-bottom: .55rem;
  text-decoration: none;
}
.colophon a:hover {
  color: var(--accent-dim);
}
.colophon-bottom {
  display: flex;
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid #3d3935;
  justify-content: space-between;
  gap: 1rem;
  font-size: .72rem;
}
[data-reveal] {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal][data-visible] {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 68rem) {
  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    padding: 1.25rem var(--page-pad) 1.75rem;
    border-bottom: 1px solid var(--border-strong);
    background: var(--bg);
    align-items: stretch;
    flex-direction: column;
  }
  .nav-links[data-open] {
    display: flex;
  }
  .menu-button {
    display: inline-grid;
    place-items: center;
  }
  .cover-grid, .page-hero-grid, .section-hd, .detail-layout {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    min-height: 28rem;
  }
  .problem-grid, .practice-grid, .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .office-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .detail-aside {
    position: static;
    max-width: 26rem;
  }
  .colophon-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 43rem) {
  .cover-grid {
    padding-block: 3.5rem;
  }
  .cover-title {
    font-size: clamp(2.7rem, 15vw, 4.5rem);
  }
  .hero-visual {
    min-height: 25rem;
  }
  .problem-grid, .practice-grid, .team-grid, .office-grid, .case-grid, .colophon-grid {
    grid-template-columns: 1fr;
  }
  .team-card {
    min-height: 33rem;
  }
  .related-list a {
    grid-template-columns: 2rem 1fr;
  }
  .related-list a span:last-child {
    display: none;
  }
  .colophon-bottom {
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}