:root {
  --forest: #174e3a;
  --forest-dark: #0f3529;
  --forest-soft: #2f6b54;
  --linen: #f2ecdf;
  --paper: #fbf8f0;
  --gold: #bd9652;
  --gold-light: #d9bd82;
  --ink: #16211d;
  --muted: #57635e;
  --line: #183d30;
  --serif: "Songti SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --max: 1200px;
  --shadow: 9px 9px 0 var(--forest-dark);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--linen);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

button {
  font: inherit;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: #fff;
  background: var(--forest-dark);
  border: 2px solid var(--gold-light);
  transform: translateY(-150%);
  transition: transform .18s ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(242, 236, 223, .94);
  border-bottom: 2px solid var(--line);
  backdrop-filter: blur(12px);
}

.header-inner {
  width: min(calc(100% - 40px), var(--max));
  height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--linen);
  background: var(--forest);
  border: 2px solid var(--forest-dark);
  box-shadow: 4px 4px 0 var(--gold);
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.brand-name {
  overflow: hidden;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.1vw, 30px);
}

.site-nav a {
  position: relative;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:not(.nav-action)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 2px;
  background: var(--forest);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .2s ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="true"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-action {
  padding: 10px 15px;
  color: #fff;
  background: var(--forest);
  border: 2px solid var(--forest-dark);
  box-shadow: 4px 4px 0 var(--gold);
  transition: transform .16s ease, box-shadow .16s ease;
}

.nav-action:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--gold);
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  color: var(--ink);
  background: transparent;
  border: 2px solid var(--line);
  cursor: pointer;
}

.menu-toggle-text {
  font-size: 14px;
  font-weight: 700;
}

.menu-icon {
  width: 20px;
  height: 16px;
  position: relative;
  display: block;
}

.menu-icon i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform .2s ease, top .2s ease;
}

.menu-icon i:first-child { top: 3px; }
.menu-icon i:last-child { top: 11px; }
.menu-toggle[aria-expanded="true"] .menu-icon i:first-child { top: 7px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon i:last-child { top: 7px; transform: rotate(-45deg); }

.hero {
  overflow: hidden;
  background:
    linear-gradient(rgba(23, 78, 58, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 78, 58, .08) 1px, transparent 1px),
    var(--linen);
  background-size: 44px 44px;
  border-bottom: 2px solid var(--line);
}

.hero-grid {
  width: min(calc(100% - 40px), var(--max));
  min-height: 660px;
  margin: 0 auto;
  padding: 82px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr);
  align-items: center;
  gap: clamp(48px, 8vw, 104px);
}

.eyebrow,
.section-index {
  margin: 0 0 20px;
  color: var(--forest);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .2em;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow span {
  width: 28px;
  height: 8px;
  background: var(--gold);
  border: 2px solid var(--line);
}

.hero h1,
.section h2,
.cooperation h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.12;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(54px, 6.5vw, 88px);
}

.hero h1 em {
  position: relative;
  color: var(--forest);
  font-style: normal;
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  right: 2px;
  bottom: 1px;
  left: 2px;
  z-index: -1;
  height: .16em;
  background: var(--gold-light);
  border: 1px solid var(--line);
}

.hero-lead {
  max-width: 660px;
  margin: 30px 0 34px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  padding: 12px 20px;
  border: 2px solid var(--line);
  font-weight: 800;
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease;
}

.button svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.button-primary {
  color: #fff;
  background: var(--forest);
  box-shadow: 6px 6px 0 var(--gold);
}

.button:hover {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--gold);
}

.text-link {
  font-weight: 800;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.text-link span {
  display: inline-block;
  margin-left: 4px;
  color: var(--forest);
  transition: transform .16s ease;
}

.text-link:hover span {
  transform: translate(3px, 3px);
}

.hero-board {
  position: relative;
  min-height: 472px;
}

.board-shadow {
  position: absolute;
  inset: 18px -18px -18px 18px;
  background: var(--gold);
  border: 3px solid var(--line);
}

.board-panel {
  position: relative;
  min-height: 472px;
  overflow: hidden;
  color: var(--linen);
  background: var(--forest);
  border: 3px solid var(--forest-dark);
}

.board-panel::before,
.board-panel::after {
  content: "";
  position: absolute;
  background: var(--gold-light);
  border: 2px solid var(--forest-dark);
}

.board-panel::before {
  top: 54px;
  right: -32px;
  width: 85px;
  height: 85px;
}

.board-panel::after {
  bottom: 36px;
  left: -26px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.board-topline {
  position: relative;
  z-index: 2;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  border-bottom: 2px solid rgba(242, 236, 223, .75);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}

.board-code {
  color: var(--gold-light);
}

.orbit {
  position: absolute;
  top: 88px;
  left: 50%;
  width: 250px;
  height: 250px;
  transform: translateX(-50%);
}

.orbit-ring,
.orbit-core {
  position: absolute;
  border-radius: 50%;
}

.orbit-ring-one {
  inset: 0;
  border: 2px solid rgba(242, 236, 223, .75);
}

.orbit-ring-two {
  inset: 48px;
  border: 2px dashed var(--gold-light);
}

.orbit-core {
  inset: 92px;
  background: var(--gold-light);
  border: 3px solid var(--forest-dark);
  box-shadow: 5px 5px 0 rgba(15, 53, 41, .9);
}

.board-steps {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.board-steps li {
  position: absolute;
  z-index: 3;
  width: 88px;
  padding: 7px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--forest-dark);
  box-shadow: 4px 4px 0 var(--gold);
  font-size: 14px;
  font-weight: 800;
}

.board-steps b {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: var(--linen);
  background: var(--forest);
  font-family: var(--serif);
}

.step-one { top: 106px; left: 9%; }
.step-two { top: 106px; right: 9%; }
.step-three { top: 282px; right: 9%; }
.step-four { top: 282px; left: 9%; }

.board-caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  margin: 0;
  padding: 15px 50px;
  text-align: center;
  border-top: 2px solid rgba(242, 236, 223, .75);
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: .08em;
}

.hero-strip {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 4vw, 68px);
  padding: 12px 24px;
  color: var(--linen);
  background: var(--forest-dark);
  border-top: 2px solid var(--line);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .14em;
}

.hero-strip i {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  background: var(--gold);
  transform: rotate(45deg);
}

.section {
  padding: 116px max(20px, calc((100vw - var(--max)) / 2));
}

.section-heading {
  margin-bottom: 52px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, .5fr);
  align-items: end;
  gap: 80px;
}

.section h2 {
  font-size: clamp(40px, 5vw, 62px);
}

.section-heading > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 16px;
}

.services {
  background: var(--paper);
  border-bottom: 2px solid var(--line);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--line);
  border-left: 2px solid var(--line);
}

.service-card {
  position: relative;
  min-width: 0;
  padding: 28px 24px 32px;
  background: var(--paper);
  border-right: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}

.service-card:hover {
  z-index: 2;
  color: var(--linen);
  background: var(--forest);
  transform: translate(-6px, -6px);
  box-shadow: 6px 6px 0 var(--gold);
}

.service-number {
  color: var(--forest-soft);
  font-family: Georgia, serif;
  font-size: 13px;
  font-weight: 700;
}

.service-card:hover .service-number {
  color: var(--gold-light);
}

.service-icon {
  width: 58px;
  height: 58px;
  margin: 40px 0 28px;
  display: grid;
  place-items: center;
  background: var(--linen);
  border: 2px solid var(--line);
  box-shadow: 4px 4px 0 var(--gold);
}

.service-icon svg {
  width: 36px;
  fill: none;
  stroke: var(--forest-dark);
  stroke-width: 2;
}

.service-card h3 {
  margin: 0 0 15px;
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.25;
}

.service-card p {
  min-height: 108px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.service-card:hover p {
  color: rgba(255, 255, 255, .78);
}

.service-card ul {
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(23, 78, 58, .32);
  list-style: none;
}

.service-card li {
  position: relative;
  margin-top: 7px;
  padding-left: 17px;
  font-size: 13px;
  font-weight: 700;
}

.service-card li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 7px;
  height: 2px;
  background: var(--gold);
}

.principle {
  color: var(--linen);
  background: var(--forest);
  border-bottom: 2px solid var(--line);
}

.principle-inner {
  width: min(calc(100% - 40px), var(--max));
  min-height: 418px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 270px;
  align-items: stretch;
  border-right: 2px solid rgba(242, 236, 223, .45);
  border-left: 2px solid rgba(242, 236, 223, .45);
}

.principle-label,
.principle-note {
  padding: 50px 32px;
}

.principle-label {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 2px solid rgba(242, 236, 223, .45);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em;
}

.principle-label svg {
  width: 56px;
  fill: none;
  stroke: var(--gold-light);
  stroke-width: 2;
}

.principle blockquote {
  margin: 0;
  padding: 62px clamp(32px, 6vw, 78px);
  display: flex;
  align-items: center;
}

.principle blockquote p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 4.5vw, 58px);
  line-height: 1.45;
}

.principle-note {
  display: flex;
  align-items: flex-end;
  border-left: 2px solid rgba(242, 236, 223, .45);
}

.principle-note p {
  margin: 0;
  color: rgba(242, 236, 223, .78);
  font-size: 14px;
}

.method {
  background: var(--linen);
  border-bottom: 2px solid var(--line);
}

.method-heading {
  max-width: 760px;
  margin-bottom: 62px;
}

.method-heading > p:last-child {
  max-width: 550px;
  margin: 24px 0 0;
  color: var(--muted);
}

.method-list {
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line);
  list-style: none;
}

.method-item {
  min-height: 188px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) minmax(210px, .42fr);
  align-items: center;
  border-right: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
  border-left: 2px solid var(--line);
  transition: background-color .2s ease;
}

.method-item:hover {
  background: rgba(255, 255, 255, .38);
}

.method-marker {
  align-self: stretch;
  display: grid;
  place-items: center;
  border-right: 2px solid var(--line);
}

.method-marker span {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--linen);
  background: var(--forest);
  border: 2px solid var(--forest-dark);
  box-shadow: 4px 4px 0 var(--gold);
  font-family: var(--serif);
  font-size: 22px;
}

.method-copy {
  padding: 28px 40px;
}

.method-tag {
  color: var(--forest-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
}

.method-copy h3 {
  margin: 7px 0 8px;
  font-family: var(--serif);
  font-size: 28px;
}

.method-copy p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.method-output {
  align-self: stretch;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  background: rgba(189, 150, 82, .12);
  border-left: 2px solid var(--line);
}

.method-output span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .12em;
}

.method-output b {
  font-family: var(--serif);
  font-size: 18px;
}

.advantages {
  padding-top: 0;
  padding-bottom: 0;
  color: var(--linen);
  background: var(--forest-dark);
  border-bottom: 2px solid var(--line);
}

.advantages-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  align-items: stretch;
}

.advantages-intro {
  padding: 112px clamp(36px, 5vw, 72px) 112px 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.advantages .section-index {
  color: var(--gold-light);
}

.advantages-intro h2 {
  font-size: clamp(40px, 4.5vw, 60px);
}

.advantages-intro > p:not(.section-index) {
  max-width: 500px;
  margin: 28px 0;
  color: rgba(242, 236, 223, .72);
}

.text-link.light {
  color: var(--linen);
}

.text-link.light span {
  color: var(--gold-light);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-left: 2px solid var(--linen);
}

.advantage-card {
  min-height: 300px;
  padding: 38px;
  color: var(--linen);
  background: var(--forest);
  border-right: 2px solid var(--linen);
  border-bottom: 2px solid var(--linen);
}

.advantage-card:nth-child(n+3) {
  border-bottom: 0;
}

.advantage-card.gold {
  color: var(--ink);
  background: var(--gold);
}

.advantage-card.linen {
  color: var(--ink);
  background: var(--linen);
}

.advantage-symbol {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 2px solid currentColor;
  font-family: var(--serif);
  font-size: 24px;
}

.advantage-card h3 {
  margin: 58px 0 12px;
  font-family: var(--serif);
  font-size: 27px;
}

.advantage-card p {
  margin: 0;
  opacity: .78;
  font-size: 14px;
}

.fit {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(50px, 8vw, 110px);
  background: var(--paper);
  border-bottom: 2px solid var(--line);
}

.fit-heading {
  align-self: start;
  position: sticky;
  top: 120px;
}

.fit-list {
  border-top: 2px solid var(--line);
}

.fit-item {
  min-height: 180px;
  padding: 32px 12px;
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: start;
  gap: 24px;
  border-bottom: 2px solid var(--line);
}

.fit-number {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--linen);
  background: var(--forest);
  border: 2px solid var(--line);
  box-shadow: 4px 4px 0 var(--gold);
  font-family: var(--serif);
  font-size: 20px;
}

.fit-item h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 25px;
}

.fit-item p {
  max-width: 580px;
  margin: 0;
  color: var(--muted);
}

.questions {
  background: var(--linen);
  border-bottom: 2px solid var(--line);
}

.questions-layout {
  display: grid;
  grid-template-columns: minmax(300px, .75fr) minmax(0, 1.25fr);
  gap: clamp(50px, 9vw, 130px);
}

.questions-heading > p:last-child {
  max-width: 420px;
  margin: 28px 0 0;
  color: var(--muted);
}

.faq-list {
  border-top: 2px solid var(--line);
}

.faq-list details {
  border-bottom: 2px solid var(--line);
}

.faq-list summary {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary i {
  position: relative;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  background: var(--forest);
  border: 2px solid var(--line);
  box-shadow: 3px 3px 0 var(--gold);
}

.faq-list summary i::before,
.faq-list summary i::after {
  content: "";
  position: absolute;
  top: 12px;
  left: 7px;
  width: 12px;
  height: 2px;
  background: var(--linen);
}

.faq-list summary i::after {
  transform: rotate(90deg);
  transition: transform .18s ease;
}

.faq-list details[open] summary i::after {
  transform: rotate(0);
}

.faq-list details p {
  margin: -4px 56px 26px 0;
  color: var(--muted);
}

.cooperation {
  position: relative;
  min-height: 540px;
  overflow: hidden;
  padding: 105px 20px;
  display: grid;
  place-items: center;
  color: var(--linen);
  background: var(--forest);
}

.cooperation::before {
  content: "";
  position: absolute;
  inset: 20px;
  pointer-events: none;
  border: 2px solid rgba(242, 236, 223, .55);
}

.cooperation-inner {
  position: relative;
  z-index: 2;
  width: min(760px, 100%);
  text-align: center;
}

.cooperation .section-index {
  color: var(--gold-light);
}

.cooperation h2 {
  font-size: clamp(44px, 6vw, 72px);
}

.cooperation-inner > p:not(.section-index) {
  max-width: 590px;
  margin: 28px auto 34px;
  color: rgba(242, 236, 223, .78);
}

.button-light {
  color: var(--forest-dark);
  background: var(--linen);
  box-shadow: 6px 6px 0 var(--gold);
}

.cooperation-shape {
  position: absolute;
  border: 3px solid var(--forest-dark);
}

.shape-one {
  top: 88px;
  left: 7%;
  width: 92px;
  height: 92px;
  background: var(--gold);
  transform: rotate(10deg);
}

.shape-two {
  right: 8%;
  bottom: 88px;
  width: 110px;
  height: 110px;
  border-color: var(--gold-light);
  border-radius: 50%;
}

.cooperation-seal {
  position: absolute;
  right: 14%;
  top: 62px;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  color: var(--forest-dark);
  background: var(--gold-light);
  border: 3px solid var(--forest-dark);
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 700;
  transform: rotate(7deg);
}

.cooperation-seal i {
  position: absolute;
  inset: 5px;
  border: 1px solid var(--forest-dark);
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
}

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

.service-grid .reveal:nth-child(2),
.advantages-grid .reveal:nth-child(2) { transition-delay: .06s; }
.service-grid .reveal:nth-child(3),
.advantages-grid .reveal:nth-child(3) { transition-delay: .12s; }
.service-grid .reveal:nth-child(4),
.advantages-grid .reveal:nth-child(4) { transition-delay: .18s; }

@media (max-width: 1050px) {
  .brand-name {
    max-width: 220px;
  }

  .site-nav {
    gap: 16px;
  }

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

  .hero-grid {
    grid-template-columns: 1fr 390px;
    gap: 48px;
  }

  .hero h1 {
    font-size: clamp(51px, 6vw, 68px);
  }

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

  .service-card p {
    min-height: auto;
  }

  .principle-inner {
    grid-template-columns: 130px 1fr;
  }

  .principle-note {
    grid-column: 1 / -1;
    padding: 24px 32px;
    border-top: 2px solid rgba(242, 236, 223, .45);
    border-left: 0;
  }

  .principle-note p {
    max-width: 720px;
  }
}

@media (max-width: 860px) {
  .header-inner {
    height: 70px;
  }

  .menu-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 70px;
    right: 0;
    left: 0;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    padding: 26px 20px 34px;
    display: grid;
    align-items: stretch;
    gap: 0;
    color: var(--linen);
    background: var(--forest-dark);
    border-bottom: 2px solid var(--gold);
    transition: transform .25s ease, visibility .25s ease;
  }

  .js .site-nav {
    transform: translateY(-120%);
    visibility: hidden;
  }

  .js .site-nav.is-open {
    transform: translateY(0);
    visibility: visible;
  }

  .site-nav a {
    padding: 16px 4px;
    border-bottom: 1px solid rgba(242, 236, 223, .3);
    font-size: 16px;
  }

  .site-nav .nav-action {
    margin-top: 18px;
    text-align: center;
    background: var(--forest);
    border: 2px solid var(--linen);
  }

  .hero-grid {
    padding: 74px 0 72px;
    grid-template-columns: 1fr;
  }

  .hero-board {
    width: min(520px, calc(100% - 18px));
    margin: 0 auto;
  }

  .section-heading,
  .questions-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .section-heading > p {
    max-width: 650px;
  }

  .method-item {
    grid-template-columns: 92px 1fr;
  }

  .method-output {
    grid-column: 2;
    padding: 18px 30px;
    border-top: 2px solid var(--line);
    border-left: 0;
  }

  .advantages-layout {
    grid-template-columns: 1fr;
  }

  .advantages-intro {
    padding-right: 0;
  }

  .advantages-grid {
    border-top: 2px solid var(--linen);
    border-left: 2px solid var(--linen);
  }

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

  .fit-heading {
    position: static;
  }
}

@media (max-width: 620px) {
  :root {
    --shadow: 6px 6px 0 var(--forest-dark);
  }

  html {
    scroll-padding-top: 74px;
  }

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

  .brand-name {
    max-width: 190px;
    font-size: 14px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 19px;
  }

  .menu-toggle-text {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

  .menu-toggle {
    width: 42px;
    height: 38px;
    justify-content: center;
  }

  .hero-grid {
    width: min(calc(100% - 28px), var(--max));
    min-height: 0;
    padding: 58px 0 64px;
    gap: 56px;
  }

  .eyebrow,
  .section-index {
    margin-bottom: 16px;
    letter-spacing: .13em;
  }

  .hero h1 {
    font-size: clamp(42px, 13.5vw, 58px);
    line-height: 1.16;
  }

  .hero-lead {
    margin: 25px 0 30px;
    font-size: 16px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .button {
    width: 100%;
  }

  .hero-board,
  .board-panel {
    min-height: 410px;
  }

  .board-shadow {
    inset: 12px -12px -12px 12px;
  }

  .orbit {
    top: 95px;
    width: 205px;
    height: 205px;
  }

  .orbit-ring-two { inset: 39px; }
  .orbit-core { inset: 76px; }

  .board-steps li {
    width: 75px;
    padding: 5px;
    gap: 5px;
    font-size: 12px;
  }

  .step-one { top: 105px; left: 4%; }
  .step-two { top: 105px; right: 4%; }
  .step-three { top: 255px; right: 4%; }
  .step-four { top: 255px; left: 4%; }

  .board-caption {
    padding-right: 16px;
    padding-left: 16px;
    font-size: 13px;
  }

  .hero-strip {
    padding: 16px 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 18px;
    text-align: center;
    letter-spacing: .06em;
  }

  .hero-strip i {
    display: none;
  }

  .section {
    padding: 82px 20px;
  }

  .section h2 {
    font-size: clamp(36px, 11vw, 48px);
  }

  .section-heading {
    margin-bottom: 38px;
  }

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

  .service-card {
    padding: 24px 22px 28px;
  }

  .service-icon {
    margin: 30px 0 24px;
  }

  .principle-inner {
    width: min(calc(100% - 28px), var(--max));
    grid-template-columns: 1fr;
  }

  .principle-label {
    min-height: 90px;
    padding: 20px;
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-bottom: 2px solid rgba(242, 236, 223, .45);
  }

  .principle-label svg {
    width: 42px;
  }

  .principle blockquote {
    padding: 44px 24px;
  }

  .principle blockquote p {
    font-size: 34px;
  }

  .principle-note {
    grid-column: auto;
    padding: 24px;
  }

  .method-heading {
    margin-bottom: 40px;
  }

  .method-item {
    grid-template-columns: 66px 1fr;
  }

  .method-marker span {
    width: 40px;
    height: 40px;
    box-shadow: 3px 3px 0 var(--gold);
    font-size: 18px;
  }

  .method-copy {
    padding: 24px 18px;
  }

  .method-copy h3 {
    font-size: 24px;
  }

  .method-output {
    padding: 15px 18px;
  }

  .advantages {
    padding-top: 0;
    padding-bottom: 0;
  }

  .advantages-intro {
    padding: 82px 0;
  }

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

  .advantage-card {
    min-height: 250px;
    padding: 30px;
    border-bottom: 2px solid var(--linen) !important;
  }

  .advantage-card:last-child {
    border-bottom: 0 !important;
  }

  .advantage-card h3 {
    margin-top: 38px;
  }

  .fit {
    gap: 42px;
  }

  .fit-item {
    min-height: 0;
    padding: 28px 0;
    grid-template-columns: 52px 1fr;
    gap: 14px;
  }

  .fit-number {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .questions-layout {
    gap: 48px;
  }

  .faq-list summary {
    min-height: 78px;
    font-size: 17px;
  }

  .faq-list details p {
    margin-right: 0;
    font-size: 14px;
  }

  .cooperation {
    min-height: 520px;
    padding: 92px 34px;
  }

  .cooperation::before {
    inset: 12px;
  }

  .cooperation h2 {
    font-size: clamp(38px, 11vw, 52px);
  }

  .shape-one {
    top: 40px;
    left: -20px;
    width: 66px;
    height: 66px;
  }

  .shape-two {
    right: -30px;
    bottom: 44px;
    width: 82px;
    height: 82px;
  }

  .cooperation-seal {
    top: 42px;
    right: 9%;
    width: 54px;
    height: 54px;
    font-size: 24px;
  }
}

@media (max-width: 380px) {
  .hero h1 em {
    white-space: normal;
  }

  .brand-name {
    max-width: 150px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

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