:root {
  --paper: #f4efe5;
  --paper-deep: #e5dccd;
  --white: #fffdf7;
  --ink: #17211f;
  --ink-soft: #58645f;
  --forest: #173b34;
  --forest-light: #275248;
  --red: #a82f28;
  --gold: #c59743;
  --blue: #365968;
  --line: rgba(23, 33, 31, 0.18);
  --line-light: rgba(255, 253, 247, 0.2);
  --sans: "DM Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Noto Serif SC", Georgia, serif;
  --utility: "Libre Franklin", "PingFang SC", sans-serif;
  --shell: 1180px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

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

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

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

::selection {
  color: var(--white);
  background: var(--red);
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: var(--z-skip-link);
  padding: 0.65rem 1rem;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-150%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(244, 239, 229, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  transition: box-shadow 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 12px 28px rgba(23, 33, 31, 0.08);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex: 0 0 auto;
  color: var(--ink);
  text-decoration: none;
}

.brand-seal {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--red);
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
}

.brand-lockup {
  display: grid;
  gap: 0.08rem;
  line-height: 1.15;
}

.brand-lockup strong {
  font-family: var(--utility);
  font-size: 0.76rem;
  letter-spacing: 0.13em;
}

.brand-lockup small {
  color: var(--ink-soft);
  font-family: var(--display);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.9rem, 1.9vw, 1.7rem);
  margin-left: auto;
}

.main-nav a {
  color: var(--ink-soft);
  font-family: var(--utility);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--red);
}

.main-nav .nav-home {
  padding: 0.6rem 0.8rem;
  color: var(--white);
  background: var(--forest);
}

.main-nav .nav-home:hover,
.main-nav .nav-home:focus-visible {
  color: var(--white);
  background: var(--forest-light);
}

.header-tools,
.language-switcher {
  display: flex;
  align-items: center;
}

.header-tools {
  gap: 0.8rem;
}

.language-switcher {
  gap: 0.15rem;
  padding: 0.18rem;
  border: 1px solid var(--line);
}

.lang-btn {
  min-width: 42px;
  padding: 0.34rem 0.5rem;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--utility);
  font-size: 0.68rem;
  font-weight: 700;
}

.lang-btn[aria-pressed="true"] {
  color: var(--white);
  background: var(--ink);
}

.menu-button {
  width: 42px;
  height: 42px;
  display: none;
  place-content: center;
  gap: 6px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
}

.menu-button span {
  width: 18px;
  height: 1px;
  display: block;
  background: var(--ink);
  transition: transform 180ms ease;
}

.menu-button[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.kicker {
  margin: 0 0 1.05rem;
  color: var(--red);
  font-family: var(--utility);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.hero {
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(4.5rem, 8vw, 7.5rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: end;
}

.hero h1,
.route-heading h2,
.desk-intro h2,
.question-grid h2,
.about-copy h2,
.closing h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(4rem, 8.6vw, 8rem);
  line-height: 0.96;
}

.hero-statement {
  max-width: 730px;
  margin: 1.8rem 0 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.42;
}

.hero-deck {
  max-width: 680px;
  margin: 1.2rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 2rem;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border: 1px solid transparent;
  font-family: var(--utility);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: #85231e;
}

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

.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--white);
  background: var(--ink);
}

.button-light {
  color: var(--ink);
  background: var(--white);
}

.button-light:hover,
.button-light:focus-visible {
  background: var(--gold);
}

.route-card {
  padding: 1.5rem;
  color: var(--white);
  background: var(--forest);
  border-top: 7px solid var(--gold);
}

.route-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-light);
  font-family: var(--utility);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.route-card h2 {
  margin: 2.4rem 0 2rem;
  font-family: var(--display);
  font-size: clamp(2rem, 3.4vw, 3rem);
  font-weight: 600;
  line-height: 1.14;
}

.route-card > a {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  gap: 0.8rem;
  align-items: center;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line-light);
  color: var(--white);
  text-decoration: none;
}

.route-card > a:hover strong,
.route-card > a:focus-visible strong {
  color: var(--gold);
}

.route-number {
  color: var(--gold);
  font-family: var(--utility);
  font-size: 0.64rem;
}

.route-card a span:nth-child(2) {
  display: grid;
  gap: 0.25rem;
}

.route-card strong {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  transition: color 160ms ease;
}

.route-card small {
  color: rgba(255, 253, 247, 0.62);
  font-size: 0.69rem;
}

.route-card b {
  font-weight: 400;
}

.route-card > p {
  margin: 1.3rem 0 0;
  padding-top: 1rem;
  color: rgba(255, 253, 247, 0.65);
  border-top: 1px solid var(--line-light);
  font-size: 0.72rem;
}

.principles {
  color: var(--white);
  background: var(--ink);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.principle-grid p {
  min-height: 88px;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0;
  padding: 1rem 1.2rem;
  border-right: 1px solid var(--line-light);
}

.principle-grid p:first-child {
  border-left: 1px solid var(--line-light);
}

.principle-grid span {
  color: var(--gold);
  font-family: var(--utility);
  font-size: 0.6rem;
}

.principle-grid strong {
  font-family: var(--display);
  font-size: 0.9rem;
  font-weight: 500;
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  border-bottom: 1px solid var(--line);
}

.global-route {
  background: var(--white);
}

.route-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: end;
  margin-bottom: clamp(3rem, 7vw, 6rem);
}

.route-heading h2,
.desk-intro h2,
.question-grid h2,
.about-copy h2,
.closing h2 {
  font-size: clamp(2.5rem, 5vw, 4.7rem);
  line-height: 1.08;
}

.route-heading > p {
  max-width: 470px;
  margin: 0 0 0.35rem;
  color: var(--ink-soft);
}

.lens-board {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.lens-board article {
  min-height: 315px;
  display: flex;
  flex-direction: column;
  grid-column: span 2;
  padding: 1.25rem;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.lens-board article > span {
  color: var(--red);
  font-family: var(--utility);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.lens-board h3 {
  margin: auto 0 0.8rem;
  font-family: var(--display);
  font-size: clamp(1.4rem, 2.3vw, 2.15rem);
  font-weight: 600;
  line-height: 1.2;
}

.lens-board p {
  min-height: 86px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.lens-board .lens-finance {
  color: var(--white);
  background: var(--forest);
}

.lens-board .lens-finance p {
  color: rgba(255, 253, 247, 0.7);
}

.lens-board .lens-finance > span {
  color: var(--gold);
}

.working-notes {
  display: grid;
  grid-template-columns: minmax(260px, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  margin-top: clamp(4rem, 8vw, 7rem);
}

.working-intro h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
}

.working-intro > p:last-child {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

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

.note-list li {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}

.note-list span {
  color: var(--red);
  font-family: var(--utility);
  font-size: 0.65rem;
}

.note-list strong {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.note-list small {
  color: var(--ink-soft);
  font-family: var(--utility);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-align: right;
}

.business-route {
  background: var(--paper-deep);
}

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

.decision-card {
  min-height: 370px;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.decision-code {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.decision-code span {
  color: var(--red);
  font-family: var(--utility);
  font-size: 0.65rem;
}

.decision-code b {
  font-family: var(--utility);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
}

.decision-card h3 {
  max-width: 500px;
  margin: auto 0 1rem;
  font-family: var(--display);
  font-size: clamp(1.65rem, 3vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
}

.decision-card p {
  max-width: 520px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.decision-status {
  margin-top: 1.3rem;
  padding-top: 0.75rem;
  color: var(--red);
  border-top: 1px solid var(--line);
  font-family: var(--utility);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.decision-lead {
  color: var(--white);
  background: var(--red);
}

.decision-lead .decision-code span,
.decision-lead .decision-status,
.decision-lead p {
  color: rgba(255, 253, 247, 0.76);
}

.decision-lead .decision-status {
  border-color: var(--line-light);
}

.business-note {
  display: grid;
  grid-template-columns: 0.45fr 1.55fr;
  gap: 2rem;
  margin-top: 2rem;
  padding: 1.5rem;
  color: var(--white);
  background: var(--ink);
}

.business-note strong {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
}

.business-note p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 253, 247, 0.7);
  font-size: 0.86rem;
}

.editorial-desk {
  color: var(--white);
  background: var(--forest);
  border-color: var(--line-light);
}

.desk-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(3rem, 8vw, 7rem);
}

.desk-intro .kicker {
  color: var(--gold);
}

.desk-intro > p:last-child {
  color: rgba(255, 253, 247, 0.7);
}

.method-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.method-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.7rem 0;
  border-bottom: 1px solid var(--line-light);
}

.method-steps li > span {
  color: var(--gold);
  font-family: var(--utility);
  font-size: 0.65rem;
}

.method-steps strong {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
}

.method-steps p {
  max-width: 620px;
  margin: 0.4rem 0 0;
  color: rgba(255, 253, 247, 0.68);
  font-size: 0.86rem;
}

.question-section {
  color: var(--white);
  background: var(--red);
  border-color: var(--line-light);
}

.question-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: end;
}

.question-section .kicker {
  color: var(--white);
}

.question-copy p {
  margin-top: 0;
  color: rgba(255, 253, 247, 0.78);
}

.question-copy .button {
  margin-top: 0.8rem;
}

.question-copy small {
  display: block;
  margin-top: 0.8rem;
  color: rgba(255, 253, 247, 0.58);
  font-size: 0.68rem;
}

.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.about-mark {
  aspect-ratio: 4 / 5;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
  color: var(--white);
  background: var(--blue);
  border: 16px solid var(--paper-deep);
  outline: 1px solid var(--ink);
}

.about-mark span {
  align-self: center;
  margin: auto 0;
  font-family: var(--display);
  font-size: clamp(4.5rem, 9vw, 8rem);
  font-weight: 700;
  writing-mode: vertical-rl;
  letter-spacing: 0.12em;
}

.about-mark small {
  font-family: var(--utility);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.about-copy > p:not(.kicker) {
  max-width: 700px;
  color: var(--ink-soft);
}

.about-copy .about-lead {
  margin-top: 2rem;
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.25rem;
  line-height: 1.55;
}

.about-copy blockquote {
  max-width: 680px;
  margin: 2.2rem 0 0;
  padding: 1.15rem 0 1.15rem 1.5rem;
  border-left: 4px solid var(--red);
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.38;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2rem;
}

.about-links a {
  padding-bottom: 0.15rem;
  color: var(--red);
  border-bottom: 1px solid currentColor;
  font-family: var(--utility);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
}

.closing {
  padding: clamp(4rem, 8vw, 7rem) 0;
  color: var(--white);
  background: var(--ink);
}

.closing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(230px, 0.6fr);
  gap: 4rem;
  align-items: end;
}

.closing .kicker {
  color: var(--gold);
}

.closing h2 {
  max-width: 860px;
}

.closing .button {
  justify-self: end;
}

.site-footer {
  padding: 4rem 0 2rem;
  background: var(--paper-deep);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-top > div > p {
  margin: 1rem 0 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 0.75rem 2rem;
  align-content: start;
}

.footer-nav a {
  color: var(--ink-soft);
  font-family: var(--utility);
  font-size: 0.72rem;
  font-weight: 600;
  text-decoration: none;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--red);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--utility);
  font-size: 0.62rem;
  letter-spacing: 0.035em;
}

.footer-bottom p:last-child {
  max-width: 610px;
  text-align: right;
}

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

@media (max-width: 1040px) {
  .main-nav a:not(.nav-home) {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.95fr);
    gap: 2.8rem;
  }

  .hero h1 {
    font-size: clamp(3.8rem, 7.5vw, 6rem);
  }

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

  .principle-grid p:nth-child(3) {
    border-left: 1px solid var(--line-light);
  }

  .principle-grid p:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line-light);
  }

  .lens-board article {
    grid-column: span 5;
  }

  .lens-board .lens-finance {
    min-height: 230px;
    grid-column: span 10;
  }

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

@media (max-width: 760px) {
  html {
    scroll-padding-top: 72px;
  }

  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-seal {
    width: 36px;
    height: 36px;
  }

  .language-switcher {
    display: none;
  }

  .menu-button {
    display: grid;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    right: 0;
    left: 0;
    height: calc(100dvh - 68px);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    margin: 0;
    padding: 1rem 16px 2rem;
    visibility: hidden;
    opacity: 0;
    background: var(--paper);
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .main-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .main-nav a,
  .main-nav a:not(.nav-home) {
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--display);
    font-size: 1.5rem;
    font-weight: 600;
  }

  .main-nav .nav-home {
    margin-top: 1rem;
    padding: 1rem;
    border: 0;
    font-family: var(--utility);
    font-size: 0.78rem;
    text-align: center;
  }

  .hero-grid,
  .route-heading,
  .working-notes,
  .desk-grid,
  .question-grid,
  .about-grid,
  .closing-grid,
  .footer-top {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: clamp(3.5rem, 16vw, 5.2rem);
  }

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

  .principle-grid p,
  .principle-grid p:first-child,
  .principle-grid p:nth-child(3) {
    min-height: 66px;
    border-right: 1px solid var(--line-light);
    border-bottom: 1px solid var(--line-light);
    border-left: 1px solid var(--line-light);
  }

  .lens-board {
    grid-template-columns: 1fr;
  }

  .lens-board article,
  .lens-board .lens-finance {
    min-height: 245px;
    grid-column: auto;
  }

  .note-list li {
    grid-template-columns: 30px minmax(0, 1fr);
  }

  .note-list small {
    grid-column: 2;
    text-align: left;
  }

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

  .decision-card {
    min-height: 330px;
  }

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

  .about-mark {
    max-width: 430px;
    width: 100%;
    margin: 0 auto;
  }

  .closing .button {
    justify-self: start;
  }

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

  .footer-bottom {
    flex-direction: column;
  }

  .footer-bottom p:last-child {
    text-align: left;
  }
}

@media (max-width: 440px) {
  .brand-lockup small {
    display: none;
  }

  .hero-actions,
  .hero-actions .button,
  .question-copy .button,
  .closing .button {
    width: 100%;
  }

  .route-card > a {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .route-card b {
    display: none;
  }
}

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

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