:root {
  --navy-950: #071f35;
  --navy-900: #0b2f4e;
  --navy-800: #103656;
  --navy-700: #17496e;
  --teal-600: #119b98;
  --teal-500: #16a6a2;
  --teal-100: #ddf3f1;
  --blue-500: #3d88b0;
  --ink: #123250;
  --muted: #5c7086;
  --rule: #cbd8e1;
  --surface: #f4f8fa;
  --white: #ffffff;
  --shell: 1180px;
  --pad: clamp(22px, 4vw, 56px);
  --section-space: clamp(62px, 6vw, 84px);
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
.button {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  left: 16px;
  top: 12px;
  padding: 10px 14px;
  background: var(--white);
  color: var(--navy-900);
  transform: translateY(-150%);
}

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

.shell {
  width: min(100% - (2 * var(--pad)), var(--shell));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  width: 100%;
  color: var(--white);
  border-bottom: 1px solid rgb(255 255 255 / 0.17);
  transition: background-color var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.is-scrolled,
.site-header.menu-open {
  background: rgb(7 31 53 / 0.97);
  border-bottom-color: rgb(255 255 255 / 0.12);
  box-shadow: 0 8px 28px rgb(3 16 29 / 0.18);
}

.header-inner {
  min-height: 82px;
  display: grid;
  grid-template-columns: 230px 1fr auto;
  gap: 28px;
  align-items: center;
}

.brand {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: clamp(18px, 2.4vw, 34px);
  font-size: 13px;
  font-weight: 600;
}

.site-nav a,
.site-footer a,
.final-download {
  position: relative;
}

.site-nav a::after,
.site-footer a::after,
.final-download::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -5px;
  height: 1px;
  background: currentColor;
  transition: right var(--transition);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-footer a:hover::after,
.site-footer a:focus-visible::after,
.final-download:hover::after,
.final-download:focus-visible::after {
  right: 0;
}

.menu-toggle {
  display: none;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition);
}

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

.button:focus-visible,
.text-link:focus-visible,
.site-nav a:focus-visible,
.brand:focus-visible,
.site-footer a:focus-visible,
.menu-toggle:focus-visible {
  outline: 3px solid #77d6d2;
  outline-offset: 4px;
}

.button-primary {
  color: var(--white);
  background: var(--teal-600);
  border-color: var(--teal-600);
}

.button-primary:hover {
  background: #0b8987;
  border-color: #0b8987;
}

.button-secondary {
  color: var(--white);
  border-color: rgb(255 255 255 / 0.72);
  background: rgb(7 31 53 / 0.1);
}

.button-secondary:hover {
  border-color: var(--white);
  background: rgb(255 255 255 / 0.08);
}

.header-cta {
  min-height: 42px;
  padding-inline: 18px;
  font-size: 12px;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--navy-950);
}

.hero-art {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image: url("assets/zhejiang-maritime-network.webp");
  background-position: center;
  background-size: cover;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, var(--navy-950) 0%, rgb(7 31 53 / 0.98) 31%, rgb(7 31 53 / 0.2) 66%, transparent 100%);
}

.hero-inner {
  padding-top: 100px;
}

.hero-copy {
  width: min(790px, 69%);
}

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

h1 {
  max-width: 790px;
  margin-bottom: 26px;
  font-size: clamp(50px, 4.7vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.hero-positioning {
  max-width: 640px;
  margin-bottom: 20px;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.02em;
}

.hero-support {
  max-width: 600px;
  margin-bottom: 34px;
  color: #d4e1ea;
  font-size: 17px;
  line-height: 1.55;
}

.hero-relevance {
  max-width: 690px;
  margin: -4px 0 30px;
  color: #69ccc8;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.hero-relevance span {
  padding-inline: 5px;
  color: #3e9897;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (min-width: 821px) {
  .hero h1 {
    white-space: nowrap;
  }
}

.section {
  padding-block: var(--section-space);
  border-bottom: 1px solid var(--rule);
}

#proof,
#resolves,
#route,
#screen,
#about {
  scroll-margin-top: 80px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(42px, 5vw, 66px);
}

.section-index {
  margin-bottom: 12px;
  color: var(--teal-600);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.section-heading h2,
.final-cta h2 {
  margin-bottom: 16px;
  color: var(--navy-900);
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.036em;
}

.section-heading h2::after {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  margin-top: 22px;
  background: var(--teal-500);
}

.section-heading > p:last-child {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
}

.proof {
  padding-block: clamp(68px, 7vw, 94px);
}

.proof .section-heading {
  margin-bottom: 44px;
}

.proof-rail {
  display: grid;
  grid-template-columns: 1.15fr 1.15fr repeat(3, 0.9fr);
  margin: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.proof-rail > div {
  min-height: 166px;
  padding: 30px 24px 28px;
  border-right: 1px solid var(--rule);
}

.proof-rail > div:first-child {
  padding-left: 0;
}

.proof-rail > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.proof-rail dt {
  margin-bottom: 22px;
  color: var(--teal-600);
  font-size: clamp(25px, 2.6vw, 34px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}

.proof-rail dd {
  max-width: 164px;
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.45;
}

.proof-note {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.methodology-strip {
  color: var(--ink);
  background: #eaf2f6;
  border-bottom: 1px solid var(--rule);
}

.methodology-inner {
  min-height: 130px;
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.6fr);
  gap: clamp(38px, 6vw, 86px);
  align-items: center;
}

.methodology-label {
  padding-right: clamp(28px, 4vw, 56px);
  border-right: 1px solid #b8cbd7;
}

.methodology-label .section-index {
  margin-bottom: 8px;
}

.methodology-label h2 {
  margin: 0;
  color: var(--navy-900);
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -0.012em;
}

.methodology-classes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.methodology-classes li {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: 0 22px;
  color: var(--navy-900);
  border-right: 1px solid #b8cbd7;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.3;
}

.methodology-classes li:first-child {
  padding-left: 0;
}

.methodology-classes li:last-child {
  padding-right: 0;
  border-right: 0;
}

.resolves {
  background: var(--surface);
}

.narrow-heading {
  max-width: 900px;
}

.decision-bridge {
  display: grid;
  grid-template-columns: 1fr 74px 1fr;
  align-items: stretch;
}

.decision-column {
  border: 1px solid var(--rule);
  background: var(--white);
}

.decision-column h3 {
  margin: 0;
  padding: 18px 24px;
  color: var(--white);
  background: var(--navy-900);
  font-size: 14px;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.paid-column h3 {
  background: var(--teal-600);
}

.decision-column ul {
  margin: 0;
  padding: 16px 30px 2px;
  list-style: none;
}

.decision-column li {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 16px;
  font-weight: 700;
}

.decision-column li:last-child {
  border-bottom: 0;
}

.decision-column > p {
  margin: 18px 30px 28px;
  color: var(--muted);
  font-size: 14px;
}

.bridge-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-600);
}

.bridge-arrow svg {
  width: 52px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 2;
}

.route-heading {
  max-width: 850px;
}

.route-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.route-flow li {
  position: relative;
  min-height: 260px;
  padding: 34px 40px 38px;
  border-right: 1px solid var(--rule);
}

.route-flow li:first-child {
  padding-left: 0;
}

.route-flow li:last-child {
  padding-right: 0;
  border-right: 0;
}

.route-flow li:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 2;
  right: -9px;
  top: 70px;
  width: 16px;
  height: 16px;
  border-top: 2px solid var(--teal-500);
  border-right: 2px solid var(--teal-500);
  background: var(--white);
  transform: rotate(45deg);
}

.route-number {
  display: block;
  margin-bottom: 32px;
  color: var(--teal-600);
  font-size: 22px;
  font-weight: 800;
}

.route-flow h3 {
  margin-bottom: 18px;
  color: var(--navy-900);
  font-size: 22px;
  line-height: 1.2;
}

.route-flow p {
  max-width: 250px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.founding-screen {
  background: var(--surface);
}

.screen-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(56px, 8vw, 112px);
  align-items: start;
}

.screen-copy .section-heading {
  margin-bottom: 34px;
}

.scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.scope-list li {
  display: grid;
  grid-template-columns: 74px 1fr;
  align-items: center;
  min-height: 54px;
  border-bottom: 1px solid var(--rule);
}

.scope-list strong {
  color: var(--teal-600);
  font-size: 17px;
}

.scope-list span {
  font-weight: 700;
}

.record-note {
  margin-top: 76px;
  padding: 38px 0 36px 42px;
  border-left: 3px solid var(--teal-500);
}

.note-label {
  margin-bottom: 20px;
  color: var(--teal-600);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.record-note h3 {
  margin-bottom: 20px;
  color: var(--navy-900);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.record-note > p:not(.note-label) {
  margin-bottom: 28px;
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--teal-600);
  font-size: 14px;
  font-weight: 800;
}

.text-link svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-width: 1.8;
  transition: transform var(--transition);
}

.text-link:hover svg {
  transform: translateX(4px);
}

.about {
  padding-block: clamp(70px, 8vw, 104px);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
}

.about-layout .section-heading {
  margin-bottom: 0;
}

.about-copy {
  padding-top: 38px;
}

.about-copy h3 {
  margin-bottom: 14px;
  color: var(--navy-900);
  font-size: 22px;
}

.about-copy p {
  max-width: 550px;
  margin-bottom: 24px;
  color: var(--muted);
}

.final-cta {
  position: relative;
  overflow: hidden;
  padding-block: clamp(74px, 8vw, 105px);
  color: var(--white);
  background: var(--navy-950);
}

.final-cta::after {
  content: "";
  position: absolute;
  right: -110px;
  bottom: -190px;
  width: 440px;
  height: 440px;
  border: 1px solid rgb(22 166 162 / 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 74px rgb(22 166 162 / 0.04), 0 0 0 148px rgb(22 166 162 / 0.025);
}

.final-cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 72px;
}

.final-cta h2 {
  margin-bottom: 14px;
  color: var(--white);
}

.final-cta p {
  margin: 0;
  color: #c8d8e3;
}

.final-actions {
  min-width: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

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

.final-download {
  color: #86d9d5;
  font-size: 14px;
  font-weight: 700;
}

.cta-channel-note {
  margin: -5px 0 0;
  color: #9fb7c7;
  font-size: 11px;
  line-height: 1.35;
  text-align: center;
}

.site-footer {
  color: #aebfca;
  background: var(--navy-950);
  border-top: 1px solid rgb(255 255 255 / 0.15);
}

.footer-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 1040px) {
  .header-inner {
    grid-template-columns: 210px 1fr auto;
  }

  .site-nav {
    gap: 18px;
  }

  .site-nav a:nth-child(2) {
    display: none;
  }

  .hero-copy {
    width: min(700px, 72%);
  }

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

  .proof-rail > div:nth-child(3) {
    border-right: 0;
  }

  .proof-rail > div:nth-child(n + 4) {
    border-top: 1px solid var(--rule);
  }

  .decision-bridge {
    grid-template-columns: 1fr 50px 1fr;
  }
}

@media (max-width: 820px) {
  .site-header {
    position: fixed;
  }

  .header-inner {
    min-height: 72px;
    grid-template-columns: 1fr auto;
  }

  .header-cta {
    display: none;
  }

  .menu-toggle {
    width: 48px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 9px;
    padding: 0;
    color: var(--white);
    background: transparent;
    border: 0;
  }

  .menu-label {
    font-size: 12px;
    font-weight: 700;
  }

  .menu-lines {
    width: 18px;
    display: grid;
    gap: 5px;
  }

  .menu-lines i {
    height: 1px;
    display: block;
    background: currentColor;
    transition: transform var(--transition);
  }

  .menu-toggle[aria-expanded="true"] .menu-lines i:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-lines i:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 18px var(--pad) 26px;
    color: var(--white);
    background: var(--navy-950);
    border-top: 1px solid rgb(255 255 255 / 0.14);
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .site-nav a,
  .site-nav a:nth-child(2) {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid rgb(255 255 255 / 0.12);
  }

  .hero {
    min-height: 680px;
  }

  .hero-art {
    opacity: 0.54;
    background-position: 61% center;
  }

  .hero::after {
    background: linear-gradient(90deg, var(--navy-950) 0%, rgb(7 31 53 / 0.92) 65%, rgb(7 31 53 / 0.45) 100%);
  }

  .hero-copy {
    width: 92%;
  }

  .screen-layout,
  .about-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .record-note,
  .about-copy {
    margin-top: 0;
    padding-top: 0;
  }

  .record-note {
    padding-left: 30px;
  }

  .final-cta-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 38px;
  }
}

@media (max-width: 640px) {
  :root {
    --pad: 21px;
    --section-space: 68px;
  }

  .brand {
    font-size: 10px;
  }

  .hero {
    min-height: 720px;
    align-items: flex-end;
  }

  .hero-inner {
    padding-top: 112px;
    padding-bottom: 70px;
  }

  .hero-copy {
    width: 100%;
  }

  h1 {
    font-size: clamp(40px, 12vw, 55px);
    line-height: 1.03;
  }

  .hero-positioning {
    font-size: 21px;
  }

  .hero-support {
    max-width: 95%;
    font-size: 15px;
  }

  .hero-relevance {
    max-width: 100%;
    margin-bottom: 28px;
    font-size: 12px;
  }

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

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

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

  .section-heading h2,
  .final-cta h2 {
    font-size: 34px;
  }

  .section-heading > p:last-child {
    font-size: 16px;
  }

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

  .methodology-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 22px;
    padding-block: 34px;
  }

  .methodology-label {
    padding-right: 0;
    padding-bottom: 22px;
    border-right: 0;
    border-bottom: 1px solid #b8cbd7;
  }

  .methodology-classes {
    grid-template-columns: 1fr;
  }

  .methodology-classes li,
  .methodology-classes li:first-child,
  .methodology-classes li:last-child {
    min-height: 46px;
    padding: 10px 0;
    border-right: 0;
    border-bottom: 1px solid #b8cbd7;
  }

  .methodology-classes li:last-child {
    border-bottom: 0;
  }

  .proof-rail > div {
    min-height: 142px;
    padding: 24px 18px;
  }

  .proof-rail > div:first-child {
    padding-left: 0;
  }

  .proof-rail > div:nth-child(2),
  .proof-rail > div:nth-child(4) {
    padding-right: 0;
    border-right: 0;
  }

  .proof-rail > div:nth-child(3) {
    padding-left: 0;
    border-right: 1px solid var(--rule);
  }

  .proof-rail > div:nth-child(n + 3) {
    border-top: 1px solid var(--rule);
  }

  .proof-rail > div:last-child {
    grid-column: 1 / -1;
    padding-left: 0;
    padding-right: 0;
    border-right: 0;
  }

  .proof-rail dt {
    margin-bottom: 16px;
    font-size: 25px;
  }

  .proof-rail dd {
    font-size: 13px;
  }

  .decision-bridge {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .bridge-arrow {
    height: 34px;
    transform: rotate(90deg);
  }

  .decision-column h3 {
    padding: 16px 18px;
    font-size: 12px;
  }

  .decision-column ul {
    padding-inline: 22px;
  }

  .decision-column > p {
    margin-inline: 22px;
  }

  .route-flow {
    grid-template-columns: 1fr;
  }

  .route-flow li,
  .route-flow li:first-child,
  .route-flow li:last-child {
    min-height: auto;
    padding: 28px 0 30px;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .route-flow li:last-child {
    border-bottom: 0;
  }

  .route-flow li:not(:last-child)::after {
    right: 8px;
    top: auto;
    bottom: -9px;
    background: var(--white);
    transform: rotate(135deg);
  }

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

  .scope-list li {
    grid-template-columns: 62px 1fr;
  }

  .record-note {
    padding-left: 22px;
  }

  .about-layout {
    gap: 28px;
  }

  .footer-inner {
    min-height: 92px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
  }
}

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

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

/* V3: three-page publishing system */

.site-header-solid {
  background: rgb(7 31 53 / 0.98);
  border-bottom-color: rgb(255 255 255 / 0.12);
}

.site-nav a[aria-current="page"] {
  color: #8cdfda;
}

.proof-rail-three {
  grid-template-columns: repeat(3, 1fr);
}

.proof-rail-three > div:nth-child(3) {
  padding-right: 0;
  border-right: 0;
}

.proof-discipline {
  max-width: 820px;
  padding-left: 18px;
  border-left: 2px solid var(--teal-500);
}

.paid-resolution-list li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 16px;
  align-items: baseline;
}

.paid-resolution-list strong {
  color: var(--teal-600);
  font-size: 13px;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.paid-resolution-list span {
  font-size: 14px;
}

.about-compact {
  align-items: start;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
}

.footer-expanded nav {
  display: flex;
  gap: 22px;
}

.interior-page {
  background: var(--white);
}

.interior-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 162px 0 94px;
  color: var(--white);
  background: var(--navy-950);
}

.interior-art,
.contact-art {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image: url("/assets/zhejiang-maritime-network.webp");
  background-position: 74% center;
  background-size: cover;
  opacity: 0.56;
}

.interior-hero::after,
.contact-main::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, var(--navy-950) 0%, rgb(7 31 53 / 0.97) 48%, rgb(7 31 53 / 0.42) 100%);
}

.interior-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.55fr);
  gap: clamp(70px, 10vw, 150px);
  align-items: end;
}

.interior-copy {
  max-width: 780px;
}

.interior-copy h1,
.contact-intro h1,
.error-copy h1 {
  margin-bottom: 28px;
  color: var(--white);
  font-size: clamp(48px, 5.4vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.046em;
}

.interior-index {
  color: #82d8d3;
}

.interior-lead {
  max-width: 690px;
  margin-bottom: 34px;
  color: #d2dfe7;
  font-size: clamp(19px, 2vw, 25px);
  line-height: 1.45;
}

.brief-meta {
  padding-left: 28px;
  border-left: 2px solid var(--teal-500);
}

.brief-meta p {
  margin: 0;
  padding: 13px 0;
  color: #d6e2ea;
  border-bottom: 1px solid rgb(255 255 255 / 0.16);
  font-size: 14px;
  font-weight: 700;
}

.brief-content-grid,
.contact-prep-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(60px, 9vw, 130px);
  align-items: start;
}

.brief-content-grid .section-heading,
.contact-prep-grid .section-heading {
  margin-bottom: 0;
}

.brief-topic-list,
.contact-prep ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.brief-topic-list li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
}

.brief-topic-list li > span,
.contact-prep li > span {
  color: var(--teal-600);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brief-topic-list h3 {
  margin: 0 0 8px;
  color: var(--navy-900);
  font-size: 21px;
}

.brief-topic-list p {
  margin: 0;
  color: var(--muted);
}

.brief-boundary {
  padding-block: clamp(62px, 7vw, 86px);
  color: var(--white);
  background: var(--navy-900);
}

.boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.boundary-grid > div {
  padding: 10px clamp(34px, 5vw, 70px) 14px 0;
}

.boundary-grid > div + div {
  padding-right: 0;
  padding-left: clamp(34px, 5vw, 70px);
  border-left: 1px solid rgb(255 255 255 / 0.2);
}

.boundary-grid h2 {
  max-width: 470px;
  margin: 0;
  font-size: clamp(27px, 3.1vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.028em;
}

.contact-main {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 680px;
  display: flex;
  align-items: center;
  padding: 152px 0 86px;
  color: var(--white);
  background: var(--navy-950);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr;
  gap: clamp(70px, 10vw, 150px);
  align-items: center;
}

.contact-intro h1 {
  max-width: 680px;
}

.contact-panel {
  padding: 38px 0 40px 42px;
  border-left: 3px solid var(--teal-500);
}

.contact-name {
  margin-bottom: 10px;
  color: #9fb5c4;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-email {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--white);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.contact-note {
  max-width: 410px;
  margin-bottom: 28px;
  color: #c8d8e3;
}

.contact-button {
  width: 100%;
  margin-bottom: 24px;
}

.contact-linkedin {
  color: #8cdfda;
}

.contact-prep ol {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.contact-prep li {
  min-height: 148px;
  padding: 28px 28px 24px 0;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.contact-prep li:nth-child(even) {
  padding-left: 28px;
  padding-right: 0;
  border-right: 0;
}

.contact-prep li p {
  max-width: 240px;
  margin: 20px 0 0;
  color: var(--navy-900);
  font-size: 18px;
  font-weight: 700;
}

.contact-privacy {
  padding-block: 28px;
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--rule);
}

.contact-privacy p {
  margin: 0;
  font-size: 13px;
}

.error-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--white);
  background: var(--navy-950);
}

.error-copy {
  padding-block: 80px;
}

.error-copy p:not(.section-index) {
  margin-bottom: 30px;
  color: #c8d8e3;
  font-size: 18px;
}

@media (max-width: 1040px) {
  .proof-rail-three {
    grid-template-columns: repeat(3, 1fr);
  }

  .proof-rail-three > div:nth-child(n + 1) {
    border-top: 0;
  }

  .interior-hero-grid,
  .contact-layout {
    gap: 60px;
  }

  .footer-expanded {
    flex-wrap: wrap;
  }
}

@media (max-width: 820px) {
  .interior-hero {
    padding-top: 138px;
  }

  .interior-hero-grid,
  .contact-layout,
  .brief-content-grid,
  .contact-prep-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .brief-meta {
    max-width: 500px;
  }

  .contact-main {
    min-height: auto;
  }

  .contact-panel {
    max-width: 570px;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 760px;
  }

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

  .proof-rail-three > div:nth-child(2) {
    padding-right: 0;
    border-right: 0;
  }

  .proof-rail-three > div:nth-child(3) {
    grid-column: 1 / -1;
    padding-left: 0;
    border-top: 1px solid var(--rule);
  }

  .paid-resolution-list li {
    grid-template-columns: 64px 1fr;
    gap: 10px;
  }

  .footer-expanded nav {
    gap: 18px;
  }

  .footer-expanded > a {
    word-break: break-word;
  }

  .interior-hero {
    padding: 126px 0 72px;
  }

  .interior-art,
  .contact-art {
    background-position: 64% center;
    opacity: 0.42;
  }

  .interior-copy h1,
  .contact-intro h1,
  .error-copy h1 {
    font-size: 42px;
  }

  .interior-lead {
    font-size: 19px;
  }

  .brief-meta,
  .contact-panel {
    padding-left: 22px;
  }

  .boundary-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .boundary-grid > div,
  .boundary-grid > div + div {
    padding: 0;
    border-left: 0;
  }

  .boundary-grid > div + div {
    padding-top: 34px;
    border-top: 1px solid rgb(255 255 255 / 0.2);
  }

  .contact-main {
    padding: 126px 0 72px;
  }

  .contact-prep ol {
    grid-template-columns: 1fr;
  }

  .contact-prep li,
  .contact-prep li:nth-child(even) {
    min-height: auto;
    padding: 24px 0;
    border-right: 0;
  }
}