:root {
  color-scheme: light;
  --paper: #f3efe5;
  --paper-deep: #e8e1d2;
  --ink: #171915;
  --ink-soft: #363932;
  --cinnabar: #a33a2b;
  --bronze: #a48245;
  --stone: #76786f;
  --line: rgba(23, 25, 21, 0.18);
  --serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --sans: "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:
    linear-gradient(90deg, transparent 0 11.9%, var(--line) 12%, transparent 12.1%),
    var(--paper);
  font-family: var(--sans);
  line-height: 1.75;
}

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-150%);
}

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

.site-header,
.site-footer,
.hero,
.statement,
.work-grid,
.public-info,
.legal-main {
  width: min(100% - 2rem, 1240px);
  margin-inline: auto;
}

.site-header {
  display: grid;
  grid-template-columns: 4fr 8fr;
  align-items: center;
  min-height: 112px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  width: fit-content;
  text-decoration: none;
}

.brand-seal {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: var(--paper);
  background: var(--cinnabar);
  font-family: var(--serif);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--serif);
  font-size: 1.12rem;
  letter-spacing: 0.14em;
}

.brand small {
  margin-top: 0.1rem;
  color: var(--stone);
  font-family: "Times New Roman", serif;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: clamp(1rem, 4vw, 3.5rem);
}

.site-nav a,
.footer-links a {
  position: relative;
  color: var(--ink-soft);
  font-size: 0.86rem;
  text-decoration: none;
}

.site-nav a::after,
.footer-links a::after {
  position: absolute;
  right: 0;
  bottom: -0.28rem;
  left: 0;
  height: 1px;
  background: var(--cinnabar);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.footer-links a:hover::after,
.footer-links a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.45fr 8.35fr 2.2fr;
  min-height: 660px;
  padding-block: clamp(4rem, 9vw, 8rem);
  overflow: hidden;
}

.hero::after {
  position: absolute;
  right: 7%;
  bottom: 12%;
  width: clamp(180px, 24vw, 330px);
  height: 1px;
  background: var(--bronze);
  content: "";
  transform: rotate(-38deg);
  transform-origin: right;
}

.hero-index {
  display: flex;
  justify-content: space-between;
  padding-block: 0.4rem;
  color: var(--stone);
  font-family: "Times New Roman", serif;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding: 1rem clamp(1.5rem, 6vw, 6rem) 0 clamp(1.5rem, 4vw, 4.5rem);
}

.eyebrow,
.section-number {
  margin: 0 0 1.5rem;
  color: var(--cinnabar);
  font-family: "Times New Roman", var(--serif);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 810px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.85rem, 7vw, 6.8rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.hero h1 span {
  display: block;
  margin-left: clamp(0rem, 8vw, 7rem);
  color: var(--cinnabar);
}

.hero-intro {
  max-width: 610px;
  margin: 3rem 0 2rem clamp(0rem, 8vw, 7rem);
  color: var(--ink-soft);
  font-size: clamp(0.98rem, 1.5vw, 1.13rem);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: clamp(0rem, 8vw, 7rem);
  padding-bottom: 0.2rem;
  border-bottom: 1px solid var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.text-link span {
  color: var(--cinnabar);
  transition: transform 180ms ease;
}

.text-link:hover span,
.text-link:focus-visible span {
  transform: translateX(0.35rem);
}

.hero-mark {
  position: relative;
  align-self: end;
  min-height: 260px;
  color: var(--paper);
  background: var(--ink);
  font-family: "Times New Roman", serif;
  font-size: clamp(4rem, 8vw, 7rem);
  line-height: 0.78;
  isolation: isolate;
}

.hero-mark::before {
  position: absolute;
  z-index: -1;
  inset: -22% 20% 22% -28%;
  border: 1px solid var(--bronze);
  content: "";
}

.hero-mark span {
  position: absolute;
}

.hero-mark span:first-child {
  top: 1.4rem;
  left: -0.5rem;
}

.hero-mark span:last-child {
  right: -0.2rem;
  bottom: 1.4rem;
  color: var(--bronze);
}

.statement {
  display: grid;
  grid-template-columns: 3.8fr 8.2fr;
  gap: 2rem;
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--line);
}

.project-showcase {
  width: min(100% - 2rem, 1240px);
  margin-inline: auto;
  padding: clamp(3rem, 7vw, 6rem);
  color: var(--paper);
  background: var(--ink);
}

.project-heading {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 3rem;
  align-items: end;
}

.project-status {
  display: inline-block;
  margin: 0;
  padding: 0.25rem 0.7rem;
  border: 1px solid rgba(243, 239, 229, 0.36);
  color: var(--paper-deep);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.project-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 500;
  line-height: 1;
}

.project-heading h2 span {
  display: block;
  margin-top: 0.3rem;
  color: var(--bronze);
  font-family: "Times New Roman", serif;
  font-size: 1.25em;
  letter-spacing: -0.04em;
}

.project-description {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 3rem;
  margin: clamp(3rem, 6vw, 5rem) 0;
  padding-top: 2rem;
  border-top: 1px solid rgba(243, 239, 229, 0.22);
}

.project-lead {
  grid-column: 2;
  max-width: 780px;
  margin: 0;
  color: var(--paper-deep);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.3vw, 1.85rem);
  line-height: 1.85;
}

.project-facts {
  display: grid;
  grid-column: 2;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0 0;
}

.project-facts div {
  padding-top: 1rem;
  border-top: 1px solid rgba(243, 239, 229, 0.18);
}

.project-facts dt {
  color: var(--stone);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.project-facts dd {
  margin: 0.35rem 0 0;
  font-family: var(--serif);
}

.project-image {
  margin: 0;
}

.project-image img,
.gallery-item img {
  width: 100%;
  background: #0d0e0c;
  filter: saturate(0.86) contrast(1.04);
  transition:
    filter 260ms ease,
    transform 420ms ease;
}

.project-image {
  overflow: hidden;
}

.project-image:hover img,
.gallery-item:hover img {
  filter: saturate(1) contrast(1);
  transform: scale(1.012);
}

.project-image figcaption,
.gallery-item figcaption {
  display: flex;
  gap: 1.2rem;
  justify-content: space-between;
  margin-top: 0.85rem;
  color: var(--stone);
  font-size: 0.78rem;
}

.project-image figcaption span,
.gallery-item figcaption span {
  color: var(--bronze);
  font-family: "Times New Roman", serif;
  letter-spacing: 0.1em;
}

.statement h2,
.work-heading h2,
.public-info h2,
.legal-main h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.28;
}

.statement h2,
.work-heading h2,
.public-info h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.statement p:not(.section-number) {
  max-width: 760px;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  line-height: 1.95;
}

.work-grid {
  display: grid;
  grid-template-columns: 1.55fr repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.work-heading,
.work-grid article {
  min-height: 320px;
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1.2rem, 2.6vw, 2.5rem);
  border-right: 1px solid var(--line);
}

.work-heading {
  padding-left: 0;
}

.work-grid article:last-child {
  border-right: 0;
}

.work-grid article {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition:
    color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.work-grid article:hover {
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-0.6rem);
}

.work-grid article:hover p,
.work-grid article:hover .article-index {
  color: var(--paper-deep);
}

.article-index {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: var(--bronze);
  font-family: "Times New Roman", serif;
}

.work-grid h3 {
  margin: 0 0 0.75rem;
  font-family: var(--serif);
  font-size: 1.45rem;
}

.work-grid article p {
  margin: 0;
  color: var(--stone);
  font-size: 0.92rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  width: min(100% - 2rem, 1240px);
  margin: clamp(5rem, 10vw, 9rem) auto;
}

.gallery-heading {
  grid-column: 1 / 6;
  align-self: start;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.gallery-heading h2 {
  max-width: 430px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4.7vw, 4.5rem);
  font-weight: 600;
  line-height: 1.18;
}

.gallery-heading > p:last-child {
  max-width: 400px;
  margin-top: 1.5rem;
  color: var(--stone);
  font-size: 0.86rem;
}

.gallery-item {
  margin: 0;
  overflow: hidden;
}

.gallery-item-wide {
  grid-column: 6 / 13;
}

.gallery-item-offset {
  grid-column: 2 / 10;
  margin-top: clamp(2rem, 6vw, 6rem);
}

.gallery-item figcaption {
  color: var(--ink-soft);
}

.public-info {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 3rem;
  margin-top: clamp(4rem, 9vw, 8rem);
  padding: clamp(3rem, 7vw, 6rem);
  color: var(--paper);
  background: var(--ink);
}

.section-number-light {
  color: var(--bronze);
}

.public-info dl {
  margin: 0;
}

.public-info dl div {
  display: grid;
  grid-template-columns: minmax(7rem, 0.7fr) 1.3fr;
  gap: 1.5rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid rgba(243, 239, 229, 0.2);
}

.public-info dt {
  color: var(--paper-deep);
  font-size: 0.85rem;
}

.public-info dd {
  margin: 0;
  font-family: var(--serif);
}

.public-info dd a {
  text-underline-offset: 0.25rem;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 2rem;
  align-items: end;
  padding: 3.5rem 0 2.25rem;
}

.site-footer strong {
  font-family: var(--serif);
  letter-spacing: 0.12em;
}

.site-footer p {
  margin: 0.35rem 0 0;
  color: var(--stone);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
}

.copyright {
  text-align: right;
}

.legal-main {
  display: grid;
  grid-template-columns: 3fr 8fr 1fr;
  gap: 2rem;
  min-height: 65vh;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.legal-main h1 {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
}

.legal-main .legal-copy {
  padding-top: 5.5rem;
}

.legal-copy section {
  margin-bottom: 2.5rem;
}

.legal-copy h2 {
  margin: 0 0 0.8rem;
  font-family: var(--serif);
  font-size: 1.25rem;
}

.legal-copy p,
.legal-copy li {
  color: var(--ink-soft);
}

.legal-copy ul {
  padding-left: 1.2rem;
}

.legal-back {
  display: inline-block;
  margin-top: 2rem;
  text-underline-offset: 0.3rem;
}

.not-found {
  min-height: calc(100vh - 112px);
}

.not-found .legal-copy {
  align-self: center;
  padding-top: 0;
}

.not-found-code {
  color: var(--cinnabar);
  font-family: "Times New Roman", serif;
  font-size: clamp(4rem, 12vw, 10rem);
  line-height: 1;
}

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

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

@media (max-width: 860px) {
  body {
    background: var(--paper);
  }

  .site-header {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.25rem 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 4.5rem;
  }

  .hero-index {
    display: none;
  }

  .hero-copy {
    padding: 0;
  }

  .hero h1 span,
  .hero-intro,
  .text-link {
    margin-left: 0;
  }

  .hero-mark {
    width: 34%;
    min-width: 150px;
    min-height: 190px;
    margin: 4rem 8% 1rem auto;
  }

  .statement,
  .public-info,
  .legal-main,
  .project-heading,
  .project-description {
    grid-template-columns: 1fr;
  }

  .project-showcase {
    padding-inline: clamp(1.5rem, 6vw, 3rem);
  }

  .project-heading {
    align-items: start;
  }

  .project-heading h2 {
    margin-top: 2rem;
  }

  .project-lead,
  .project-facts {
    grid-column: 1;
  }

  .project-facts {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .work-heading {
    grid-column: 1 / -1;
    min-height: auto;
    padding-left: 0;
    border-right: 0;
  }

  .work-grid article:nth-of-type(2) {
    border-right: 0;
  }

  .public-info {
    padding-inline: clamp(1.5rem, 6vw, 3rem);
  }

  .gallery-heading {
    grid-column: 1 / 7;
  }

  .gallery-item-wide {
    grid-column: 5 / 13;
  }

  .gallery-item-offset {
    grid-column: 1 / 10;
  }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .copyright {
    text-align: left;
  }

  .legal-main .legal-copy {
    padding-top: 0;
  }
}

@media (max-width: 560px) {
  .site-header,
  .site-footer,
  .hero,
  .statement,
    .work-grid,
    .project-showcase,
    .gallery,
    .public-info,
  .legal-main {
    width: min(100% - 1.35rem, 1240px);
  }

  .site-nav {
    gap: 1rem;
    overflow-x: auto;
  }

  .site-nav a {
    white-space: nowrap;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .hero h1 {
    font-size: clamp(2.6rem, 14vw, 4.2rem);
  }

  .hero-intro {
    margin-top: 2rem;
  }

  .statement {
    gap: 0.5rem;
  }

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

  .project-description {
    margin-block: 2.5rem;
  }

  .project-facts {
    grid-template-columns: 1fr;
  }

  .project-image figcaption,
  .gallery-item figcaption {
    display: block;
  }

  .project-image figcaption span,
  .gallery-item figcaption span {
    display: block;
    margin-bottom: 0.25rem;
  }

  .gallery {
    display: block;
    margin-block: 4rem;
  }

  .gallery-heading,
  .gallery-item {
    margin-bottom: 2.5rem;
  }

  .gallery-item-offset {
    margin-top: 0;
  }

  .work-grid article {
    min-height: 230px;
    border-right: 0;
    border-top: 1px solid var(--line);
  }

  .work-grid article:hover {
    transform: none;
  }

  .public-info {
    margin-top: 4rem;
  }

  .public-info dl div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

/* 首页二级页面入口强调 */
.site-nav a[href='/about.html'], .site-nav a[href='/contact.html'] { font-size: 1.8em; font-weight: 800; padding-inline: 1.15rem; color: #111820; background: #ffffff; border: 2px solid #111820; }
.footer-links a[href='/about.html'], .footer-links a[href='/contact.html'] { font-size: 1.45em; font-weight: 800; color: #111820; background: #ffffff; border: 2px solid #111820; padding: .25rem .55rem; }

.site-nav a[href='/about.html'], .site-nav a[href='/contact.html'] { font-size: 1.8em; font-weight: 800; padding-inline: 1.15rem; color: #111820; background: #ffffff; border: 2px solid #111820; }