:root {
  color-scheme: light;
  --paper: #f2eee4;
  --paper-deep: #e8e0d2;
  --ink: #1d2d30;
  --ink-soft: #526467;
  --forest: #173c3b;
  --forest-light: #24514d;
  --rust: #b45834;
  --rust-dark: #8e3f24;
  --line: rgba(29, 45, 48, 0.18);
  --white-soft: rgba(255, 255, 255, 0.72);
  --shadow: 0 24px 60px rgba(30, 45, 45, 0.12);
  --sans: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 10%, rgba(180, 88, 52, 0.12), transparent 24rem),
    linear-gradient(rgba(29, 45, 48, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 100% 32px, auto;
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 1rem;
  color: white;
  background: var(--forest);
  border-radius: 0.35rem;
  transform: translateY(-160%);
}

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

.site-header,
main,
.site-footer {
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 96px;
  border-bottom: 1px solid var(--line);
}

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

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--paper);
  background: var(--forest);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 1.05rem;
}

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

.brand strong {
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: -0.1rem;
  color: var(--ink-soft);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

nav {
  display: flex;
  gap: 2rem;
}

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

nav a::after {
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--rust);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

nav a:hover::after,
nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  min-height: 680px;
  padding-block: 5rem;
}

.eyebrow,
.section-kicker,
.project-label {
  margin: 0;
  color: var(--rust-dark);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.eyebrow {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}

.eyebrow span {
  width: 36px;
  height: 1px;
  background: var(--rust);
}

.hero h1 {
  max-width: 760px;
  margin: 1.65rem 0 1.5rem;
  font-family: var(--serif);
  font-size: clamp(3rem, 6.8vw, 6rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.hero h1 em {
  display: block;
  color: var(--rust);
  font-style: normal;
}

.hero-intro {
  max-width: 650px;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  margin-top: 2.4rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--forest);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: white;
  background: var(--forest);
}

.button-primary:hover {
  background: var(--forest-light);
}

.button-quiet:hover {
  color: white;
  background: var(--forest);
}

.status-card {
  position: relative;
  overflow: hidden;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(29, 45, 48, 0.15);
  border-radius: 1.2rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.status-card::before {
  position: absolute;
  top: -3rem;
  right: -3rem;
  width: 9rem;
  height: 9rem;
  border: 1px solid rgba(180, 88, 52, 0.3);
  border-radius: 50%;
  box-shadow: 0 0 0 18px rgba(180, 88, 52, 0.05);
  content: "";
}

.status-card-head {
  display: flex;
  justify-content: space-between;
  color: var(--ink-soft);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.status-dot {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  color: var(--forest);
  letter-spacing: 0;
}

.status-dot::before {
  width: 7px;
  height: 7px;
  background: #4f806c;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(79, 128, 108, 0.15);
  content: "";
}

.status-date {
  margin: 3.5rem 0 0.5rem;
  color: var(--rust);
  font-family: var(--serif);
  font-size: 2.35rem;
}

.status-card h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1.35;
}

.status-card > p:not(.status-date) {
  margin: 1rem 0 1.8rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.status-card dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
}

.status-card dl div + div {
  padding-left: 0.9rem;
  border-left: 1px solid var(--line);
}

.status-card dt,
.status-card dd {
  margin: 0;
}

.status-card dt {
  color: var(--ink-soft);
  font-size: 0.68rem;
}

.status-card dd {
  margin-top: 0.2rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.section {
  padding-block: 7.5rem;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 1.2rem;
  align-items: end;
  margin-bottom: 4rem;
}

.section-number {
  margin: 0 0 0.2rem;
  color: var(--rust);
  font-family: var(--serif);
  font-size: 1rem;
}

.section-heading h2 {
  margin: 0.25rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.section-note {
  margin: 0 0 0.45rem;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 0.9rem;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(3rem, 8vw, 7rem);
  margin-left: 90px;
}

.about-lead {
  margin: 0;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  line-height: 1.5;
}

.about-body {
  color: var(--ink-soft);
  font-size: 1rem;
}

.about-body p {
  margin-top: 0;
}

.focus-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 4rem 0 0 90px;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.focus-list li {
  padding: 1.4rem 1.2rem 0 0;
  font-family: var(--serif);
  font-size: 1rem;
}

.focus-list li + li {
  padding-left: 1.2rem;
  border-left: 1px solid var(--line);
}

.focus-list span {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--rust);
  font-family: var(--sans);
  font-size: 0.67rem;
}

.note-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.925fr 0.925fr;
  gap: 1rem;
}

.note-card {
  display: flex;
  min-height: 330px;
  padding: 1.7rem;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.note-card:hover {
  border-color: rgba(180, 88, 52, 0.45);
  box-shadow: 0 16px 34px rgba(30, 45, 45, 0.08);
  transform: translateY(-4px);
}

.note-card-featured {
  color: #f8f4eb;
  background: var(--forest);
  border-color: var(--forest);
}

.note-meta {
  display: flex;
  justify-content: space-between;
  color: var(--rust-dark);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.note-card-featured .note-meta {
  color: #e8a286;
}

.note-card h3 {
  margin: 3.2rem 0 1rem;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.45;
}

.note-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.note-card-featured p {
  color: rgba(248, 244, 235, 0.72);
}

.note-state {
  align-self: flex-start;
  margin-top: auto;
  padding: 0.22rem 0.62rem;
  color: var(--ink-soft);
  background: rgba(29, 45, 48, 0.06);
  border-radius: 999px;
  font-size: 0.68rem;
}

.note-card-featured .note-state {
  color: #f8f4eb;
  background: rgba(255, 255, 255, 0.1);
}

.project {
  position: relative;
  width: 100%;
  max-width: none;
  padding: 7.5rem max(1.5rem, calc((100vw - 1180px) / 2));
  color: #f6f1e7;
  background: var(--forest);
  border: 0;
}

.section-heading-light {
  border-color: rgba(255, 255, 255, 0.18);
}

.section-heading-light .section-kicker,
.section-heading-light .section-number {
  color: #e69372;
}

.project-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(310px, 0.8fr);
  gap: clamp(4rem, 9vw, 9rem);
  align-items: center;
  margin-left: 90px;
}

.project-label {
  color: #e69372;
}

.project-copy h3 {
  margin: 0.8rem 0 1.2rem;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 5vw, 4.2rem);
  font-weight: 500;
}

.project-copy > p:not(.project-label) {
  max-width: 630px;
  color: rgba(246, 241, 231, 0.7);
}

.project-tags {
  display: flex;
  gap: 0.65rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.project-tags span {
  padding: 0.36rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  font-size: 0.72rem;
}

.project-map {
  position: relative;
  display: grid;
  gap: 1.4rem;
}

.map-line {
  position: absolute;
  top: 2rem;
  bottom: 2rem;
  left: 1.45rem;
  width: 1px;
  background: rgba(255, 255, 255, 0.18);
}

.map-step {
  position: relative;
  display: flex;
  gap: 1rem;
  align-items: center;
  min-height: 78px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.7rem;
}

.map-step > span {
  z-index: 1;
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  color: rgba(246, 241, 231, 0.65);
  background: var(--forest);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  font-size: 0.72rem;
}

.map-step strong,
.map-step small {
  display: block;
}

.map-step small {
  margin-top: 0.15rem;
  color: rgba(246, 241, 231, 0.55);
  font-size: 0.72rem;
}

.map-step-done > span {
  color: var(--forest);
  background: #d9c9ae;
  border-color: #d9c9ae;
}

.map-step-current {
  background: rgba(180, 88, 52, 0.16);
  border-color: rgba(230, 147, 114, 0.48);
}

.map-step-current > span {
  color: white;
  background: var(--rust);
  border-color: var(--rust);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.7fr);
  gap: 5rem;
  align-items: end;
}

.contact h2 {
  max-width: 650px;
  margin: 0.6rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  font-weight: 500;
  line-height: 1.25;
}

.contact-copy p {
  margin-top: 0;
  color: var(--ink-soft);
}

.contact-placeholder {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  padding-bottom: 0.3rem;
  color: var(--rust-dark);
  border-bottom: 1px solid rgba(180, 88, 52, 0.48);
  font-weight: 700;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 3rem;
  align-items: end;
  padding-block: 2.4rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.site-footer strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0.2rem 0 0;
}

.filing {
  display: grid;
  gap: 0.2rem;
  text-align: center;
}

.filing a {
  color: var(--ink);
}

.copyright {
  white-space: nowrap;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    padding-block: 1.4rem;
  }

  nav {
    display: grid;
    grid-template-columns: repeat(2, auto);
    gap: 0.5rem 1.4rem;
    text-align: right;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-block: 5rem 6.5rem;
  }

  .status-card {
    max-width: 560px;
  }

  .about-grid,
  .project-layout {
    margin-left: 0;
  }

  .focus-list {
    margin-left: 0;
  }

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

  .note-card-featured {
    grid-column: 1 / -1;
  }

  .project-layout,
  .contact {
    grid-template-columns: 1fr;
  }

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

  .copyright {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: min(100% - 2rem, 1180px);
  }

  .site-header {
    display: block;
  }

  nav {
    display: flex;
    gap: 1.1rem;
    margin-top: 1.25rem;
    overflow-x: auto;
    padding-bottom: 0.3rem;
    text-align: left;
    white-space: nowrap;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero h1 {
    font-size: clamp(2.7rem, 14vw, 4.1rem);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .status-card {
    padding: 1.4rem;
  }

  .status-card dl {
    grid-template-columns: 1fr;
  }

  .status-card dl div + div {
    margin-top: 0.7rem;
    padding: 0.7rem 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .section {
    padding-block: 5.5rem;
  }

  .section-heading {
    grid-template-columns: 40px 1fr;
    margin-bottom: 2.7rem;
  }

  .section-note {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .focus-list,
  .note-grid {
    grid-template-columns: 1fr;
  }

  .focus-list li + li {
    padding: 1.1rem 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .note-card-featured {
    grid-column: auto;
  }

  .project {
    padding: 5.5rem 1rem;
  }

  .project-layout {
    gap: 3.5rem;
  }

  .contact {
    gap: 2rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    align-items: start;
  }

  .filing {
    text-align: left;
  }

  .copyright {
    grid-column: auto;
  }
}

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

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