:root {
  --paper: #f7f5f0;
  --surface: #ffffff;
  --ink: #202523;
  --muted: #686b65;
  --line: #d9d6ce;
  --gold: #b5965b;
  --gold-light: #e2d1a7;
  --red: #b51f24;
  --olive: #667166;
  --coal: #252a27;
  --header-height: 76px;
  --content-width: 1200px;
  --shadow: 0 12px 34px rgba(23, 28, 25, 0.1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  color: inherit;
  font: inherit;
  letter-spacing: 0;
}

button,
a,
input,
textarea {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(181, 31, 36, 0.28);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 10px;
  left: 10px;
  transform: translateY(-150%);
  padding: 9px 14px;
  color: #fff;
  background: var(--red);
}

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

.container {
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 48px), 820px);
  margin: 0 auto;
}

.section {
  padding: 104px 0;
}

.section-compact {
  padding: 72px 0;
}

.band-white {
  background: var(--surface);
}

.band-dark {
  color: #f7f5f0;
  background: var(--coal);
}

.band-muted {
  background: #ecebe5;
}

.eyebrow,
.overline {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
}

.band-dark .eyebrow,
.band-dark .overline {
  color: var(--gold-light);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1,
.display-title {
  margin-bottom: 22px;
  font-family: "Songti SC", STSong, serif;
  font-size: 64px;
  font-weight: 600;
  line-height: 1.14;
}

h2,
.section-title {
  margin-bottom: 22px;
  font-family: "Songti SC", STSong, serif;
  font-size: 42px;
  font-weight: 600;
  line-height: 1.24;
}

h3 {
  margin-bottom: 12px;
  font-size: 23px;
  font-weight: 600;
  line-height: 1.4;
}

.lead {
  max-width: 780px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.9;
}

.band-dark .lead,
.band-dark .muted {
  color: #c9ccc7;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 13px;
  line-height: 1.7;
}

.section-note {
  margin-top: 16px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.section-heading > div {
  max-width: 760px;
}

.section-heading h2,
.section-heading p {
  margin-bottom: 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--red);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 1px solid currentColor;
}

.text-link::after {
  content: "\2192";
  margin-left: 8px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  font-weight: 700;
  line-height: 1.4;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
}

.button-primary:hover {
  background: #94191d;
  border-color: #94191d;
}

.button-secondary {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line);
}

.button-secondary:hover {
  border-color: var(--ink);
}

.button-light {
  color: var(--ink);
  background: #fff;
  border-color: #fff;
}

.button-ghost-light {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.62);
}

.button-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}

/* Header */
.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid rgba(32, 37, 35, 0.1);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 48px), 1360px);
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 auto;
}

.site-brand {
  display: flex;
  min-width: 188px;
  align-items: center;
}

.site-brand img {
  width: 166px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 14px;
  color: #363b38;
  font-size: 14px;
  font-weight: 600;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--red);
  border-bottom-color: var(--red);
}

.header-action {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  background: var(--red);
  border-radius: 3px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  min-height: 690px;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: var(--coal);
}

.hero-media,
.page-hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img,
.page-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after,
.page-hero::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  background: rgba(16, 20, 18, 0.48);
  content: "";
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  padding: 92px 0 80px;
}

.hero-content-inner {
  max-width: 720px;
}

.hero .eyebrow,
.page-hero .eyebrow {
  color: #f0dba8;
}

.hero h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: 70px;
}

.hero-copy {
  max-width: 700px;
  margin-bottom: 30px;
  color: #f2f2ed;
  font-size: 20px;
  line-height: 1.8;
}

.hero-note,
.render-label {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 3px 8px;
  color: #fff;
  font-size: 12px;
  line-height: 1.4;
  background: rgba(20, 24, 22, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 2px;
}

.hero-note {
  position: absolute;
  z-index: 3;
  right: 20px;
  bottom: 18px;
}

.page-hero {
  position: relative;
  display: flex;
  min-height: 590px;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: var(--coal);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  padding: 90px 0 68px;
}

.page-hero h1 {
  max-width: 760px;
  margin-bottom: 15px;
}

.page-hero p {
  max-width: 740px;
  margin-bottom: 0;
  color: #eee;
  font-size: 19px;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.status-tag {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 4px 11px;
  color: #fff;
  font-size: 13px;
  background: rgba(17, 20, 18, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 2px;
}

/* Project system */
.brand-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 80px;
  align-items: start;
}

.brand-quote {
  padding: 34px 0 4px 34px;
  border-left: 3px solid var(--gold);
}

.brand-quote strong {
  display: block;
  margin-bottom: 12px;
  font-family: "Songti SC", STSong, serif;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.35;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 56px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-item {
  min-height: 146px;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
}

.stat-item:first-child {
  padding-left: 0;
}

.stat-item:last-child {
  border-right: 0;
}

.stat-value {
  display: block;
  margin-bottom: 8px;
  color: var(--red);
  font-family: "Songti SC", STSong, serif;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.2;
}

.stat-label {
  color: var(--muted);
  font-size: 14px;
}

.lineage {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  counter-reset: lineage;
}

.lineage-item {
  position: relative;
  min-height: 240px;
  padding: 32px 30px 28px;
  counter-increment: lineage;
  border-top: 1px solid #aaa9a2;
}

.lineage-item::before {
  position: absolute;
  top: -6px;
  left: 30px;
  width: 11px;
  height: 11px;
  background: var(--red);
  border: 2px solid var(--surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--red);
  content: "";
}

.lineage-number {
  display: block;
  margin-bottom: 38px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
}

.lineage p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.project-card {
  position: relative;
  min-height: 470px;
  overflow: hidden;
  color: #fff;
  background: #2d312f;
  border-radius: 6px;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 450ms ease;
}

.project-card::after {
  position: absolute;
  inset: 0;
  background: rgba(17, 21, 19, 0.42);
  content: "";
}

.project-card:hover img {
  transform: scale(1.025);
}

.project-card-content {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 30px;
}

.project-card-content h3 {
  margin-bottom: 5px;
  font-size: 28px;
}

.project-card-content p {
  margin-bottom: 18px;
  color: #f2f2ed;
  font-size: 14px;
}

.project-card-link {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  font-size: 14px;
  font-weight: 700;
  border-bottom: 1px solid #fff;
}

.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: stretch;
  min-height: 590px;
}

.split-feature-media {
  position: relative;
  min-height: 520px;
  overflow: hidden;
}

.split-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-feature-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 8vw 72px 64px;
  background: var(--surface);
}

.split-feature-copy .button-row {
  margin-top: 12px;
}

.image-note {
  position: absolute;
  right: 12px;
  bottom: 12px;
}

/* Content modules */
.prose {
  color: #404541;
  font-size: 18px;
  line-height: 2;
}

.prose p {
  margin-bottom: 1.2em;
}

.prose p:last-child {
  margin-bottom: 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.principle-item {
  padding-top: 26px;
  border-top: 3px solid var(--gold);
}

.principle-item strong {
  display: block;
  margin-bottom: 10px;
  font-size: 20px;
}

.principle-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.comparison-item {
  padding: 42px;
  background: var(--surface);
}

.comparison-item .number {
  display: block;
  margin-bottom: 22px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
}

.comparison-list,
.plain-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.comparison-list li,
.plain-list li {
  position: relative;
  padding: 11px 0 11px 18px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.comparison-list li::before,
.plain-list li::before {
  position: absolute;
  top: 22px;
  left: 0;
  width: 5px;
  height: 5px;
  background: var(--red);
  border-radius: 50%;
  content: "";
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.gallery-item {
  position: relative;
  grid-column: span 4;
  min-height: 310px;
  overflow: hidden;
  background: #d9dbd6;
  border-radius: 4px;
}

.gallery-item.wide {
  grid-column: span 8;
}

.gallery-item.tall {
  min-height: 520px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.gallery-item:hover img {
  transform: scale(1.02);
}

.gallery-caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 24px 18px 14px;
  color: #fff;
  font-size: 13px;
  background: rgba(18, 22, 20, 0.7);
}

.unit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.unit-card {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.unit-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f0f0ed;
}

.unit-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.unit-body {
  padding: 26px;
}

.unit-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.unit-title-row h3 {
  margin: 0;
}

.unit-code {
  color: var(--red);
  font-weight: 700;
}

.unit-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 20px;
}

.unit-metric {
  padding: 14px;
  background: #f2f1ed;
  border-radius: 3px;
}

.unit-metric strong {
  display: block;
  color: var(--ink);
  font-size: 19px;
}

.unit-metric span {
  color: var(--muted);
  font-size: 12px;
}

.disclaimer {
  margin-top: 30px;
  padding: 18px 20px;
  color: #62645f;
  font-size: 13px;
  line-height: 1.8;
  background: #ecebe5;
  border-left: 3px solid var(--gold);
}

.cta-band {
  color: #fff;
  background: var(--red);
}

.cta-inner {
  display: flex;
  min-height: 250px;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  padding: 52px 0;
}

.cta-inner h2 {
  margin-bottom: 10px;
  font-size: 36px;
}

.cta-inner p {
  margin-bottom: 0;
  color: #f8e9e8;
}

.cta-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.news-card {
  display: flex;
  min-height: 350px;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.news-card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #ddd;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms ease;
}

.news-card:hover .news-card-image img {
  transform: scale(1.02);
}

.news-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px;
}

.news-date {
  margin-bottom: 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 700;
}

.news-card h2,
.news-card h3 {
  margin-bottom: 12px;
  font-family: inherit;
  font-size: 22px;
  line-height: 1.45;
}

.news-card p {
  flex: 1;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  min-width: 42px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
}

.pagination .active,
.pagination a:hover {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
}

.article-header {
  padding: 82px 0 50px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  max-width: 920px;
  margin-bottom: 18px;
  font-size: 48px;
}

.article-meta {
  color: var(--muted);
  font-size: 14px;
}

.article-cover {
  position: relative;
  width: min(calc(100% - 48px), 1080px);
  max-height: 650px;
  margin: 56px auto 0;
  overflow: hidden;
  border-radius: 4px;
}

.article-cover img {
  width: 100%;
  max-height: 650px;
  object-fit: cover;
}

.article-content {
  width: min(calc(100% - 48px), 820px);
  margin: 0 auto;
  padding: 64px 0 96px;
  font-size: 18px;
  line-height: 2;
}

.article-content img {
  height: auto !important;
  margin: 28px auto;
  border-radius: 3px;
}

.article-content h2,
.article-content h3 {
  margin-top: 2em;
}

.article-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.article-nav > div:last-child {
  text-align: right;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 72px;
  align-items: start;
}

.contact-details {
  padding-right: 20px;
}

.contact-row {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.contact-row:first-of-type {
  margin-top: 30px;
}

.contact-row span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 13px;
}

.contact-row strong,
.contact-row a {
  font-size: 21px;
  font-weight: 600;
}

.lead-form {
  padding: 38px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.lead-form h2 {
  margin-bottom: 8px;
  font-family: inherit;
  font-size: 28px;
}

.lead-form-intro {
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field-full {
  grid-column: 1 / -1;
}

.field label,
.field-label {
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  background: #fbfbf8;
  border: 1px solid #c9c8c1;
  border-radius: 3px;
}

.field textarea {
  min-height: 122px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  background: #fff;
  border-color: var(--red);
  outline: 2px solid rgba(181, 31, 36, 0.14);
}

.verify-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.verify-row input {
  flex: 1;
  min-width: 0;
}

.verify-image {
  width: 128px;
  height: 48px;
  object-fit: cover;
  background: #ecece8;
  border: 1px solid #c9c8c1;
  border-radius: 3px;
  cursor: pointer;
}

.consent {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.consent input {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  min-height: 0;
  margin-top: 2px;
  accent-color: var(--red);
}

.consent a {
  color: var(--red);
  text-decoration: underline;
}

.form-status {
  display: none;
  margin: 0 0 18px;
  padding: 10px 12px;
  color: #7a1a1e;
  font-size: 14px;
  background: #fae9e9;
  border-left: 3px solid var(--red);
}

.form-status.is-visible {
  display: block;
}

.privacy-content h2 {
  margin-top: 1.8em;
  font-family: inherit;
  font-size: 26px;
}

/* Footer */
.site-footer {
  color: #f4f3ed;
  background: #202522;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(260px, 1.2fr) minmax(180px, 0.7fr) minmax(240px, 0.9fr);
  gap: 72px;
  padding: 72px 0 54px;
}

.footer-logo {
  width: 176px;
  margin-bottom: 24px;
  padding: 10px;
  background: #fff;
  border-radius: 3px;
}

.footer-brand p,
.footer-contact p {
  margin-bottom: 8px;
  color: #bfc3be;
  font-size: 14px;
}

.footer-title {
  margin-bottom: 17px;
  color: var(--gold-light);
  font-size: 14px;
  font-weight: 700;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px 16px;
}

.footer-nav a {
  color: #d7d9d5;
  font-size: 14px;
}

.footer-nav a:hover {
  color: #fff;
}

.footer-phone {
  display: inline-block;
  margin-bottom: 13px;
  color: #fff;
  font-family: Arial, sans-serif;
  font-size: 27px;
  font-weight: 700;
  line-height: 1.3;
}

.footer-bottom {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 13px 0;
  color: #999e99;
  font-size: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom-links {
  display: flex;
  gap: 16px;
}

.footer-bottom a:hover {
  color: #fff;
}

.mobile-dock {
  display: none;
}

.back-to-top {
  position: fixed;
  z-index: 900;
  right: 22px;
  bottom: 22px;
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: rgba(32, 37, 35, 0.9);
  border: 0;
  border-radius: 3px;
  opacity: 0;
  pointer-events: none;
  cursor: pointer;
  transition: opacity 180ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.image-dialog {
  width: min(calc(100% - 32px), 1080px);
  max-width: none;
  max-height: calc(100vh - 32px);
  padding: 44px 18px 18px;
  overflow: auto;
  background: #fff;
  border: 0;
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.image-dialog::backdrop {
  background: rgba(15, 18, 16, 0.78);
}

.image-dialog img {
  width: 100%;
  max-height: calc(100vh - 110px);
  object-fit: contain;
}

.dialog-close {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--ink);
  font-size: 25px;
  line-height: 1;
  background: transparent;
  border: 0;
  cursor: pointer;
}

[data-lightbox] {
  cursor: zoom-in;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .header-action {
    display: none;
  }

  .nav-link {
    padding-right: 10px;
    padding-left: 10px;
  }

  .hero {
    min-height: 630px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .brand-intro-grid {
    gap: 48px;
  }

  .project-card {
    min-height: 420px;
  }

  .split-feature-copy {
    padding-right: 5vw;
    padding-left: 48px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .section {
    padding: 82px 0;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    z-index: 999;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    align-items: stretch;
    overflow-y: auto;
    padding: 20px 24px 90px;
    background: #fff;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-link {
    min-height: 52px;
    padding: 12px 4px;
    font-size: 17px;
    border-bottom: 1px solid var(--line);
  }

  .nav-link:hover,
  .nav-link.is-active {
    border-bottom-color: var(--red);
  }

  .hero {
    min-height: 600px;
  }

  .hero h1,
  h1,
  .display-title {
    font-size: 48px;
  }

  h2,
  .section-title {
    font-size: 36px;
  }

  .page-hero {
    min-height: 520px;
  }

  .brand-intro-grid,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .stat-item:nth-child(2) {
    border-right: 0;
  }

  .stat-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .stat-item:nth-child(3) {
    padding-left: 0;
  }

  .lineage {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 26px;
  }

  .project-grid,
  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card:last-child,
  .news-card:last-child {
    grid-column: 1 / -1;
  }

  .split-feature {
    grid-template-columns: 1fr;
  }

  .split-feature-copy {
    padding: 64px 48px;
  }

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

  .unit-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .unit-card {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
  }

  .unit-image {
    aspect-ratio: auto;
    min-height: 330px;
  }

  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 42px;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 62px;
  }

  body {
    padding-bottom: 62px;
    font-size: 15px;
  }

  .container,
  .narrow,
  .hero-content,
  .page-hero-content,
  .article-cover,
  .article-content {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .section {
    padding: 66px 0;
  }

  .section-compact {
    padding: 54px 0;
  }

  .header-inner {
    width: calc(100% - 28px);
  }

  .site-brand {
    min-width: 0;
  }

  .site-brand img {
    width: 138px;
  }

  .hero {
    min-height: 570px;
  }

  .hero-media img {
    object-position: 56% center;
  }

  .hero-content {
    padding: 74px 0 58px;
  }

  .hero h1,
  h1,
  .display-title {
    font-size: 38px;
    line-height: 1.2;
  }

  .hero-copy {
    font-size: 17px;
    line-height: 1.75;
  }

  h2,
  .section-title {
    font-size: 31px;
  }

  h3 {
    font-size: 21px;
  }

  .lead {
    font-size: 17px;
  }

  .hero-note {
    right: 10px;
    bottom: 10px;
  }

  .page-hero {
    min-height: 470px;
  }

  .page-hero-content {
    padding: 70px 0 46px;
  }

  .page-hero p {
    font-size: 16px;
  }

  .section-heading {
    display: block;
    margin-bottom: 34px;
  }

  .section-heading .text-link {
    margin-top: 18px;
  }

  .button-row,
  .button-row .button {
    width: 100%;
  }

  .brand-quote {
    padding-left: 22px;
  }

  .brand-quote strong {
    font-size: 27px;
  }

  .stat-grid {
    margin-top: 40px;
  }

  .stat-item {
    min-height: 125px;
    padding: 22px 16px;
  }

  .stat-value {
    font-size: 28px;
  }

  .lineage {
    grid-template-columns: 1fr;
    row-gap: 10px;
  }

  .lineage-item {
    min-height: 0;
    padding: 26px 8px 28px 28px;
    border-top: 0;
    border-left: 1px solid #aaa9a2;
  }

  .lineage-item::before {
    top: 33px;
    left: -6px;
  }

  .lineage-number {
    margin-bottom: 18px;
  }

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

  .project-card,
  .project-card:last-child,
  .news-card:last-child {
    grid-column: auto;
  }

  .project-card {
    min-height: 390px;
  }

  .project-card-content {
    padding: 24px;
  }

  .split-feature-media {
    min-height: 390px;
  }

  .split-feature-copy {
    padding: 52px 24px;
  }

  .principle-grid,
  .comparison {
    grid-template-columns: 1fr;
  }

  .comparison-item {
    padding: 30px 24px;
  }

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

  .gallery-item,
  .gallery-item.wide {
    grid-column: auto;
    min-height: 285px;
  }

  .gallery-item.tall {
    min-height: 390px;
  }

  .unit-card {
    display: block;
  }

  .unit-image {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .unit-body {
    padding: 22px;
  }

  .cta-inner {
    display: block;
    min-height: 0;
  }

  .cta-inner h2 {
    font-size: 30px;
  }

  .cta-actions {
    margin-top: 28px;
  }

  .cta-actions .button {
    width: 100%;
  }

  .article-header {
    padding: 62px 0 38px;
  }

  .article-header h1 {
    font-size: 34px;
  }

  .article-cover {
    margin-top: 34px;
  }

  .article-content {
    padding: 44px 0 70px;
    font-size: 16px;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .article-nav > div:last-child {
    text-align: left;
  }

  .lead-form {
    padding: 26px 18px;
  }

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

  .field-full {
    grid-column: auto;
  }

  .contact-row strong,
  .contact-row a {
    font-size: 18px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 56px 0 42px;
  }

  .footer-contact {
    grid-column: auto;
  }

  .footer-bottom {
    display: block;
    padding: 18px 0;
  }

  .footer-bottom-links {
    margin-top: 7px;
  }

  .mobile-dock {
    position: fixed;
    z-index: 1100;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    height: 62px;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 18px rgba(24, 28, 25, 0.08);
  }

  .mobile-dock a {
    display: flex;
    min-width: 0;
    align-items: center;
    justify-content: center;
    padding: 8px 5px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.3;
    border-right: 1px solid var(--line);
  }

  .mobile-dock a:last-child {
    color: #fff;
    background: var(--red);
    border-right: 0;
  }

  .back-to-top {
    right: 12px;
    bottom: 76px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}