:root {
  color-scheme: light;
  --paper: #f4efe5;
  --paper-light: #fbf8f1;
  --ink: #20231f;
  --muted: #65675f;
  --line: #c8c1b3;
  --accent: #e56f37;
  --accent-soft: #f2c9a7;
  --leaf: #456554;
  --shell: min(1180px, calc(100vw - 48px));
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, "Songti SC", "Noto Serif CJK SC", serif;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 3px solid var(--leaf);
  outline-offset: 4px;
}

:where(.company-section, .principles-section) a:focus-visible {
  outline-color: var(--accent-soft);
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--paper-light);
  background: var(--ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 11px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-decoration: none;
}

.wordmark-dot {
  width: 15px;
  height: 15px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset 0 0 0 3px var(--paper);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.site-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  text-decoration: none;
}

.site-nav a:hover {
  text-decoration: underline;
}

.site-nav .nav-contact {
  min-width: 78px;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 999px;
}

.site-nav .nav-contact:hover {
  color: var(--paper-light);
  background: var(--ink);
  text-decoration: none;
}

.hero {
  display: grid;
  min-height: 670px;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  align-items: center;
  gap: clamp(48px, 8vw, 120px);
  padding-block: 96px 112px;
}

.eyebrow,
.section-index {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(56px, 7.4vw, 98px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero-line {
  white-space: nowrap;
}

.hero-lead {
  max-width: 620px;
  margin: 42px 0 0;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
}

.hero-english {
  max-width: 600px;
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 17px;
  font-style: italic;
  line-height: 1.55;
}

.text-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
  font-weight: 700;
}

.hero-object {
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 26px;
}

.hero-object > p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.2em;
  line-height: 1.6;
  text-align: center;
}

.pomelo-disc {
  position: relative;
  display: grid;
  width: min(30vw, 320px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--accent-soft);
}

.pomelo-disc::before,
.pomelo-disc::after {
  position: absolute;
  content: "";
}

.pomelo-disc::before {
  inset: 14%;
  border: 1px solid color-mix(in srgb, var(--ink) 60%, transparent);
  border-radius: 50%;
}

.pomelo-disc::after {
  top: 4%;
  left: 61%;
  width: 25%;
  height: 14%;
  border: 1px solid var(--ink);
  border-radius: 100% 0 100% 0;
  background: var(--leaf);
  transform: rotate(-22deg);
}

.disc-core {
  width: 25%;
  aspect-ratio: 1;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--accent);
}

.disc-label {
  position: absolute;
  left: 50%;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
  transform: translateX(-50%);
}

.disc-label-top {
  top: 25%;
}

.disc-label-bottom {
  bottom: 23%;
}

.work-section {
  padding-block: 96px 120px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(160px, 0.42fr) minmax(0, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.section-heading h2,
.company-section h2,
.contact-card h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(40px, 5vw, 68px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.section-heading > div > p {
  margin: 8px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
}

.project-list {
  border-top: 1px solid var(--ink);
}

.domain-note {
  margin: 28px 0 0;
  padding: 20px 22px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  background: var(--paper-light);
  font-size: 14px;
}

.domain-note code,
.contact-detail code {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.project {
  display: grid;
  min-height: 250px;
  grid-template-columns: 80px minmax(0, 1fr) 190px;
  align-items: center;
  gap: 36px;
  padding-block: 42px;
  border-bottom: 1px solid var(--ink);
}

.project-number {
  align-self: start;
  padding-top: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.status {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding-inline: 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  letter-spacing: 0.08em;
}

.status-live {
  color: var(--leaf);
}

.status-building {
  color: #8b4b28;
}

.project h3 {
  margin: 20px 0 12px;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.project-body > p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.project-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 13px;
  font-weight: 800;
}

.project-link-muted {
  color: var(--muted);
  cursor: default;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
}

.company-section {
  color: var(--paper-light);
  background: var(--ink);
}

.company-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(60px, 9vw, 150px);
  padding-block: 118px 126px;
}

.company-section .section-index {
  color: #a9aa9f;
}

.company-intro {
  max-width: 700px;
  margin: 2px 0 70px;
  font-size: clamp(20px, 2.4vw, 29px);
  line-height: 1.65;
}

.company-facts {
  margin: 0;
  border-top: 1px solid #55584f;
}

.company-facts > div {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 24px;
  padding-block: 21px;
  border-bottom: 1px solid #55584f;
}

.company-facts dt {
  color: #a9aa9f;
  font-size: 12px;
}

.company-facts dd {
  margin: 0;
}

.contact-section {
  padding-block: 112px;
}

.contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 84px);
  border: 1px solid var(--ink);
  background: var(--paper-light);
}

.contact-card::after {
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 280px;
  height: 280px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--accent-soft);
  content: "";
}

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

.contact-card > p:not(.section-index) {
  margin: 24px 0 30px;
  color: var(--muted);
  font-size: 18px;
}

.email-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 14px;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
}

.site-footer {
  display: flex;
  min-height: 110px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

.site-footer > div {
  display: flex;
  gap: 24px;
}

.site-footer a {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.site-nav a[aria-current="page"]:not(.nav-contact) {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.site-nav .nav-contact[aria-current="page"] {
  color: var(--paper-light);
  background: var(--ink);
}

.page-main {
  min-height: 60vh;
}

.page-hero {
  padding-block: 104px 112px;
  border-bottom: 1px solid var(--line);
}

.page-hero-compact {
  padding-bottom: 88px;
}

.page-hero h1 {
  max-width: 980px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(60px, 8vw, 112px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
  text-wrap: balance;
}

.page-hero-compact h1 {
  font-size: clamp(52px, 7vw, 92px);
}

.page-line {
  white-space: nowrap;
}

.page-lead {
  max-width: 760px;
  margin: 40px 0 0;
  font-size: clamp(19px, 2.4vw, 28px);
  line-height: 1.7;
}

.page-english {
  max-width: 720px;
  margin: 16px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 18px;
  font-style: italic;
}

.policy-date {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.detail-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(48px, 8vw, 120px);
  padding-block: 96px;
  border-bottom: 1px solid var(--line);
}

.detail-label h2,
.principles-section h2,
.contact-detail h2,
.mail-note h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.fact-table {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.fact-table > div {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 24px;
  padding-block: 21px;
  border-bottom: 1px solid var(--line);
}

.fact-table dt,
.contact-aside dt {
  color: var(--muted);
  font-size: 12px;
}

.fact-table dd,
.contact-aside dd {
  margin: 0;
}

.detail-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.relationship-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.relationship-grid article {
  min-height: 330px;
  padding: clamp(28px, 4vw, 46px);
  border: 1px solid var(--ink);
  background: var(--paper-light);
}

.relationship-grid article:last-child {
  background: var(--accent-soft);
}

.relationship-grid article:last-child .card-kicker,
.relationship-grid article:last-child > p:not(.card-kicker) {
  color: var(--ink);
}

.card-kicker {
  margin: 0 0 48px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.relationship-grid h3 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.relationship-grid article > p:not(.card-kicker) {
  max-width: 500px;
  margin: 0;
  color: var(--muted);
}

.principles-section {
  color: var(--paper-light);
  background: var(--ink);
}

.principles-section > .shell {
  padding-block: 106px 118px;
}

.principles-section .section-index {
  color: #a9aa9f;
}

.principle-list {
  margin: 64px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #55584f;
}

.principle-list li {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 28px;
  padding-block: 30px;
  border-bottom: 1px solid #55584f;
}

.principle-list li > span {
  padding-top: 4px;
  color: #a9aa9f;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.principle-list h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 500;
}

.principle-list p {
  margin: 0;
  color: #c5c6bd;
}

.contact-detail {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(50px, 8vw, 120px);
  padding-block: 98px;
}

.contact-detail-main > p:last-child {
  max-width: 640px;
  margin: 26px 0 0;
  color: var(--muted);
}

.contact-email {
  display: flex;
  width: fit-content;
  max-width: 100%;
  min-height: 56px;
  align-items: center;
  gap: 14px;
  margin-top: 32px;
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 500;
  letter-spacing: -0.03em;
  overflow-wrap: anywhere;
}

.contact-aside {
  padding: 32px;
  border: 1px solid var(--ink);
  background: var(--paper-light);
}

.contact-aside dl {
  margin: 0;
}

.contact-aside dl > div {
  padding-block: 18px;
  border-top: 1px solid var(--line);
}

.contact-aside dt {
  margin-bottom: 6px;
}

.mail-note {
  display: grid;
  grid-template-columns: minmax(180px, 0.35fr) minmax(0, 1fr);
  gap: clamp(48px, 8vw, 120px);
  padding-block: 88px 112px;
  border-top: 1px solid var(--line);
}

.mail-note h2 {
  max-width: 780px;
}

.mail-note div > p {
  max-width: 660px;
  margin: 26px 0 0;
  color: var(--muted);
}

.policy {
  padding-block: 54px 112px;
}

.policy section {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 32px;
  padding-block: 42px;
  border-bottom: 1px solid var(--line);
}

.policy-number {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.policy h2 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.policy section div > p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.not-found {
  position: relative;
  min-height: 620px;
  padding-block: 120px;
}

.not-found h1 {
  max-width: 780px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(54px, 8vw, 106px);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1;
  text-wrap: balance;
}

.not-found > p:not(.eyebrow) {
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.not-found-fruit {
  position: absolute;
  z-index: -1;
  right: 4%;
  top: 90px;
  display: grid;
  width: min(34vw, 380px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  color: var(--ink);
  background: var(--accent-soft);
  font-family: var(--serif);
  font-size: clamp(44px, 6vw, 78px);
}

@media (max-width: 840px) {
  :root {
    --shell: min(100% - 36px, 720px);
  }

  .site-nav {
    gap: 10px;
    font-size: 13px;
  }

  .site-nav a:not(.nav-contact) {
    display: inline-flex;
  }

  .site-nav .nav-contact {
    min-width: 64px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 72px;
    padding-block: 72px 88px;
  }

  .hero-object {
    justify-self: center;
  }

  .pomelo-disc {
    width: min(70vw, 320px);
  }

  .section-heading,
  .company-grid,
  .detail-section,
  .contact-detail,
  .mail-note {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 4px;
  }

  .project {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .project-link {
    grid-column: 2;
    justify-content: flex-start;
  }

  .company-grid {
    gap: 58px;
  }

  .detail-section,
  .contact-detail,
  .mail-note {
    gap: 44px;
  }

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

@media (max-width: 520px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .site-header {
    min-height: 76px;
  }

  .wordmark {
    font-size: 11px;
    letter-spacing: 0.12em;
  }

  .site-nav .nav-contact {
    min-width: 68px;
  }

  .hero h1 {
    font-size: clamp(42px, 11.4vw, 54px);
  }

  .page-hero {
    padding-block: 72px 78px;
  }

  .page-hero h1,
  .page-hero-compact h1 {
    font-size: clamp(42px, 11.4vw, 54px);
  }

  .not-found h1 {
    font-size: clamp(44px, 12vw, 54px);
  }

  .hero-lead {
    margin-top: 32px;
    font-size: 18px;
  }

  .work-section,
  .contact-section {
    padding-block: 76px;
  }

  .project {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 16px;
    padding-block: 36px;
  }

  .project-number,
  .project-link {
    grid-column: 1;
  }

  .project-number {
    padding-top: 0;
  }

  .project-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .company-grid {
    padding-block: 84px 92px;
  }

  .detail-section,
  .contact-detail,
  .mail-note {
    padding-block: 72px;
  }

  .fact-table > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .relationship-grid article {
    min-height: 0;
  }

  .principle-list li {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 16px;
  }

  .policy section {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .not-found {
    min-height: 570px;
  }

  .not-found-fruit {
    top: 270px;
    width: 240px;
    opacity: 0.55;
  }

  .company-facts > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .contact-card {
    padding-block: 44px 130px;
  }

  .contact-card::after {
    right: -94px;
    bottom: -144px;
  }

  .email-link {
    word-break: break-word;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 30px;
  }
}

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