@font-face {
  font-family: "GGX Noto Sans SC";
  src: url("./assets/fonts/NotoSansSC-VF.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --orange: #f26522;
  --orange-strong: #ff7a2a;
  --yellow: #ffd100;
  --ink: #121212;
  --ink-soft: #242424;
  --paper: #f6f4ef;
  --white: #ffffff;
  --muted: #6b6b6b;
  --line: rgba(18, 18, 18, 0.12);
  --teal: #2f8f83;
  --blue: #2d5f9a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
  --font-sans: "GGX Noto Sans SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
  --font-display: "GGX Noto Sans SC", "Noto Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
  --font-label: "GGX Noto Sans SC", "Noto Sans SC", "Microsoft YaHei UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.nav-open {
  overflow: hidden;
}

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

button,
input,
select {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: rgba(12, 12, 12, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  display: block;
  width: 126px;
  height: 44px;
  object-fit: contain;
  object-position: left center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.site-nav a {
  opacity: 0.86;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-cta {
  padding: 9px 15px;
  border-radius: 6px;
  color: var(--ink);
  background: var(--white);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
}

.hero {
  position: relative;
  min-height: 80vh;
  display: grid;
  align-items: center;
  padding: 96px clamp(20px, 5vw, 72px) 52px;
  color: var(--white);
  overflow: hidden;
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-bg {
  background-image: url("./assets/hero-ladder-kv-final.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.01);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.66) 43%, rgba(0, 0, 0, 0.26) 100%),
    linear-gradient(0deg, rgba(0, 0, 0, 0.74) 0%, rgba(0, 0, 0, 0.12) 56%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 850px;
  padding-bottom: 0;
  transform: translateY(-32px);
}

.replaceable-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 7px 11px;
  border: 1px dashed rgba(255, 255, 255, 0.72);
  border-radius: 6px;
  color: var(--white);
  background: rgba(0, 0, 0, 0.54);
  font-size: 13px;
  font-weight: 800;
}

.hero-badge {
  position: absolute;
  right: clamp(20px, 5vw, 72px);
  bottom: 34px;
  z-index: 2;
  max-width: min(420px, calc(100% - 40px));
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--orange-strong);
  font-size: clamp(16px, 1.35vw, 21px);
  font-weight: 800;
  letter-spacing: 0;
}

.hero-content .eyebrow {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: clamp(24px, 3.4vw, 46px);
  line-height: 1.08;
  font-weight: 900;
}

.eyebrow.dark {
  color: var(--blue);
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(36px, 5.1vw, 68px);
  line-height: 1.05;
  letter-spacing: 0;
}

.no-break {
  white-space: nowrap;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(27px, 3.35vw, 46px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  cursor: pointer;
}

.btn.primary {
  color: var(--ink);
  background: var(--orange);
}

.btn.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.08);
}

.btn.full {
  width: 100%;
}

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

.section-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

section {
  padding: clamp(70px, 8vw, 116px) 0;
}

.problem-section {
  padding-top: 58px;
  background: var(--white);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(280px, 1.2fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.large-copy {
  color: var(--ink-soft);
  font-size: clamp(24px, 2.9vw, 38px);
  line-height: 1.32;
}

.problem-section h2 {
  font-size: clamp(34px, 4.1vw, 56px);
}

.large-copy p:last-child,
.case-copy p:last-child {
  margin-bottom: 0;
}

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

.section-heading {
  max-width: 780px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading .eyebrow,
.definition-block .eyebrow,
.feature-copy .eyebrow,
.connection-panel .eyebrow,
.contact-layout .eyebrow,
.about-panel .eyebrow,
.cases-section .eyebrow {
  font-size: clamp(22px, 2.1vw, 32px);
  line-height: 1.08;
  font-weight: 900;
}

.section-heading.left {
  margin-left: 0;
  text-align: left;
}

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

.section-heading p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
}

.products-section .section-heading p,
.solutions-section .section-heading p {
  color: var(--muted);
}

.flow-board {
  display: grid;
  grid-template-columns: 1fr 34px 1fr 34px 1fr 34px 1fr;
  align-items: center;
}

.flow-node {
  min-height: 184px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.flow-node.active {
  background: var(--orange);
  color: var(--ink);
}

.flow-node span {
  display: block;
  margin-bottom: 22px;
  font-size: 13px;
  font-weight: 900;
  opacity: 0.7;
}

.flow-node strong {
  display: block;
  margin-bottom: 8px;
  font-size: 23px;
}

.flow-node p {
  margin-bottom: 0;
  color: inherit;
  opacity: 0.78;
}

.flow-line {
  height: 2px;
  background: var(--orange);
}

.products-section {
  background: var(--paper);
}

.product-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1.35fr) repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 306px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.product-card-main {
  grid-row: span 2;
  min-height: 460px;
  justify-content: center;
  text-align: center;
}

.product-card-main h3 {
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.06;
}

.product-card-main .product-index {
  margin-bottom: 26px;
}

.product-card-main p {
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
}

.product-card.featured {
  color: var(--white);
  background: var(--ink);
  border-color: var(--ink);
  box-shadow: var(--shadow);
}

.product-index {
  color: var(--orange);
  font-weight: 900;
  margin-bottom: 34px;
}

.product-tag {
  color: var(--blue);
  font-weight: 800;
}

.product-card.featured .product-tag {
  color: var(--orange-strong);
}

.product-card p:last-of-type {
  color: var(--muted);
}

.product-card.featured p:last-of-type {
  color: rgba(255, 255, 255, 0.76);
}

.product-card a {
  margin-top: auto;
  color: var(--orange-strong);
  font-weight: 900;
}

.ladder-lead {
  color: var(--white);
  background:
    radial-gradient(circle at 82% 40%, rgba(242, 101, 34, 0.34), transparent 36%),
    linear-gradient(135deg, #121212 0%, #252525 56%, #f26522 100%);
}

.ladder-hero {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(420px, 1.18fr);
  gap: clamp(28px, 5vw, 58px);
  align-items: center;
}

.ladder-copy p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(18px, 2.35vw, 26px);
  line-height: 1.35;
}

.ladder-logo-image {
  display: block;
  width: min(290px, 68vw);
  height: auto;
  margin-bottom: 26px;
}

.ladder-kv-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.22);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
}

.ladder-kv-card img {
  display: block;
  width: 100%;
  height: auto;
}

.ladder-content {
  background: var(--white);
}

.definition-block {
  max-width: 880px;
  margin-bottom: 40px;
}

.definition-block p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 34px;
}

.pain-grid article {
  min-height: 150px;
  padding: 20px;
  border-radius: 8px;
  background: #f2f0ea;
  border: 1px solid var(--line);
}

.pain-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.belief-strip {
  display: grid;
  gap: 14px;
  padding: clamp(26px, 4vw, 42px);
  margin-bottom: 26px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
}

.belief-strip p {
  margin-bottom: 0;
  color: var(--orange-strong);
  font-size: clamp(19px, 2.35vw, 28px);
  font-weight: 900;
}

.belief-strip strong {
  max-width: 880px;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.2;
}

.ladder-four {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.ladder-four article {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.ladder-four article:nth-child(2n) {
  color: var(--white);
  border-color: var(--ink);
  background: var(--ink);
}

.ladder-four span {
  display: block;
  margin-bottom: 30px;
  color: var(--orange);
  font-weight: 900;
}

.ladder-four h3 {
  font-size: clamp(21px, 2.05vw, 28px);
  line-height: 1.12;
}

.ladder-four p {
  margin-bottom: 0;
  color: var(--muted);
}

.ladder-four article:nth-child(2n) p {
  color: rgba(255, 255, 255, 0.74);
}

.ladder-more {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.ladder-more summary {
  padding: 22px 24px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
}

.ladder-more .feature-list {
  padding: 0 24px 24px;
}

.mechanism {
  margin-bottom: 72px;
}

.mechanism .section-heading p {
  color: rgba(255, 255, 255, 0.74);
}

.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.mechanism-grid article {
  min-height: 168px;
  padding: 22px;
  border-radius: 8px;
  color: var(--white);
  background: var(--ink);
}

.mechanism-grid article:nth-child(2n) {
  background: var(--blue);
}

.mechanism-grid span {
  display: block;
  margin-bottom: 42px;
  color: var(--orange-strong);
  font-size: 24px;
  font-weight: 900;
}

.mechanism-grid p {
  margin-bottom: 0;
}

.feature-wall {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: 32px;
  align-items: start;
  margin-bottom: 72px;
}

.feature-copy {
  position: sticky;
  top: 98px;
  padding: 30px;
  border-radius: 8px;
  background: var(--paper);
}

.feature-copy p:last-child {
  color: var(--muted);
}

.feature-list {
  display: grid;
  gap: 10px;
}

.feature-list div {
  display: grid;
  grid-template-columns: minmax(150px, 0.42fr) minmax(200px, 0.58fr);
  gap: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-list strong {
  color: var(--orange);
}

.feature-list span {
  color: var(--muted);
}

.psychology-block {
  margin-bottom: 72px;
  padding: clamp(30px, 5vw, 58px);
  border-left: 8px solid var(--orange);
  background: #161616;
  color: var(--white);
}

.psychology-block p {
  max-width: 860px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 22px;
}

.operation-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(300px, 1.15fr);
  gap: 34px;
  margin-bottom: 72px;
}

.operation-grid .section-heading p {
  color: var(--muted);
}

.operation-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.operation-list span {
  display: flex;
  align-items: center;
  min-height: 84px;
  padding: 22px;
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
}

.connection-panel {
  padding: clamp(30px, 5vw, 50px);
  border-radius: 8px;
  background: var(--paper);
}

.connection-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.connection-grid article {
  padding: 20px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}

.connection-grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.solutions-section {
  background: #f0ebe1;
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.solution-list article {
  min-height: 230px;
  padding: 22px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--line);
}

.solution-list p {
  color: var(--muted);
}

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

.case-copy {
  color: rgba(255, 255, 255, 0.76);
  font-size: 17px;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.case-tags span {
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--ink);
  background: var(--orange);
  font-weight: 900;
}

.coverage-map {
  margin-top: 46px;
  padding: clamp(22px, 3.6vw, 42px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background:
    radial-gradient(circle at 70% 24%, rgba(242, 101, 34, 0.2), transparent 34%),
    rgba(255, 255, 255, 0.055);
}

.coverage-copy {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 30px;
}

.coverage-copy h2 {
  margin: 0;
  max-width: 560px;
  color: var(--white);
  font-size: clamp(30px, 4.1vw, 54px);
  line-height: 0.98;
}

.coverage-copy p:last-child {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
}

.evidence-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.evidence-stats div {
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.22);
}

.evidence-stats strong {
  display: block;
  color: var(--orange-strong);
  font-size: clamp(30px, 3.3vw, 46px);
  line-height: 1;
}

.evidence-stats span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
}

.map-layout {
  display: grid;
  grid-template-columns: minmax(420px, 1.25fr) minmax(280px, 0.75fr);
  gap: 22px;
  align-items: start;
}

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

.real-map-frame {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: #181818;
}

.real-map-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.china-map-panel {
  position: relative;
  height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    #141414;
}

.china-map-shape {
  position: absolute;
  inset: 7% 5% 5%;
  width: 90%;
  height: 86%;
}

.china-map-shape path:first-child {
  fill: rgba(242, 101, 34, 0.16);
  stroke: rgba(255, 255, 255, 0.28);
  stroke-width: 2;
}

.china-map-shape .map-line {
  fill: none;
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 2;
}

.city-pin {
  position: absolute;
  left: var(--x);
  top: var(--y);
  transform: translate(-50%, -50%);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 24px;
  padding: 4px 7px 4px 6px;
  border: 1px solid rgba(242, 101, 34, 0.52);
  border-radius: 999px;
  color: var(--white);
  background: rgba(0, 0, 0, 0.7);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.city-pin::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(242, 101, 34, 0.16);
}

.city-list-card {
  display: flex;
  flex-direction: column;
  height: 520px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.24);
}

.city-list-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.1;
}

.city-list-text {
  flex: 1;
  min-height: 0;
  overflow: auto;
  margin: 0;
  padding-right: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 16px;
  line-height: 1.9;
}

.case-carousel {
  margin-top: 42px;
}

.case-carousel-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(300px, 0.78fr);
  gap: clamp(18px, 3vw, 34px);
  align-items: stretch;
  padding: clamp(14px, 2.4vw, 24px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.case-carousel-media {
  overflow: hidden;
  min-height: 0;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: #111;
}

.case-carousel-image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.case-carousel-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 260px;
  padding: clamp(12px, 2.2vw, 24px);
}

.case-carousel-count {
  margin-bottom: 18px;
  color: var(--orange-strong);
  font-weight: 900;
}

.case-carousel-title {
  margin-bottom: 14px;
  font-size: clamp(25px, 3vw, 40px);
  line-height: 1.08;
}

.case-carousel-description {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.case-carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
}

.case-carousel-button {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}

.case-carousel-button:hover,
.case-carousel-button:focus-visible {
  color: var(--ink);
  background: var(--orange);
}

.case-carousel-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

.case-carousel-dot {
  width: 42px;
  height: 6px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
  cursor: pointer;
}

.case-carousel-dot.is-active {
  background: var(--orange);
}

.case-builder {
  margin-top: 44px;
  padding: clamp(22px, 3.6vw, 42px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background:
    radial-gradient(circle at 86% 18%, rgba(242, 101, 34, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.035));
}

.case-builder-heading {
  display: block;
  margin-bottom: 24px;
}

.case-builder-heading h2 {
  max-width: none;
  margin: 0;
  color: var(--white);
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.08;
  white-space: nowrap;
}

.case-proof-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
  gap: clamp(18px, 2.8vw, 30px);
  align-items: stretch;
}

.case-proof-showcase,
.case-proof-card {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.28);
}

.case-proof-showcase {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 16px;
  background:
    radial-gradient(circle at 70% 12%, rgba(242, 101, 34, 0.14), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025));
}

.case-proof-media {
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
  margin: 0;
  min-height: 0;
  border: 1px solid rgba(214, 176, 104, 0.36);
  border-radius: 7px;
  background:
    radial-gradient(circle at 50% 45%, rgba(242, 101, 34, 0.12), transparent 55%),
    rgba(0, 0, 0, 0.36);
}

.case-proof-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: saturate(0.98) contrast(1.03);
}

.case-proof-card {
  padding: clamp(18px, 2.5vw, 28px);
}

.anonymous-case-kicker {
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
}

.case-proof-card h3 {
  max-width: 620px;
  margin-bottom: 12px;
  color: var(--white);
  font-size: clamp(24px, 2.45vw, 34px);
  line-height: 1.1;
}

.anonymous-case-summary,
.case-proof-note {
  color: rgba(255, 255, 255, 0.76);
  font-size: 15px;
}

.case-proof-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 20px 0;
}

.case-proof-metrics div {
  min-width: 0;
  padding: 14px 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.065);
}

.case-proof-metrics strong {
  display: block;
  color: var(--orange-strong);
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 36px);
  font-weight: 900;
  line-height: 1;
  overflow-wrap: anywhere;
}

.case-proof-metrics span,
.case-proof-metrics small {
  display: block;
  margin-top: 7px;
}

.case-proof-metrics span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  font-weight: 900;
}

.case-proof-metrics small {
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  line-height: 1.35;
}

.case-proof-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.case-proof-actions span {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--gold);
  font-size: 12px;
  font-weight: 900;
}

.case-proof-note {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
}

.case-proof-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  margin-top: 0;
}

.case-proof-dots {
  display: flex;
  align-items: center;
  gap: 9px;
}

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

.about-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(300px, 1.15fr);
  gap: 42px;
  padding: clamp(32px, 5vw, 56px);
  border-radius: 8px;
  background: var(--paper);
}

.about-copy {
  display: grid;
  gap: 20px;
}

.about-logo {
  display: block;
  width: min(220px, 72vw);
  height: auto;
}

.about-copy p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
}

.company-points {
  margin-top: 10px;
  border-top: 1px solid var(--line);
}

.company-points div {
  display: grid;
  grid-template-columns: minmax(120px, 0.28fr) minmax(260px, 0.72fr);
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.company-points strong {
  color: var(--orange);
  font-size: 18px;
}

.company-points span {
  color: var(--ink);
  font-size: 17px;
  line-height: 1.65;
}

.contact-section {
  color: var(--white);
  background: #161616;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.contact-layout > div p:last-child {
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.wechat-card {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  max-width: 430px;
  margin-top: 28px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.wechat-qr-frame {
  overflow: hidden;
  padding: 8px;
  border-radius: 6px;
  background: var(--white);
}

.wechat-qr-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.wechat-copy {
  display: grid;
  gap: 6px;
}

.wechat-copy strong {
  color: var(--orange-strong);
  font-size: 18px;
  line-height: 1.2;
}

.wechat-copy span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  line-height: 1.55;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 24px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
}

.contact-form label {
  display: grid;
  gap: 7px;
  font-weight: 800;
}

.contact-form input,
.contact-form select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfaf7;
}

.contact-form button,
.form-note {
  grid-column: 1 / -1;
}

.form-note {
  min-height: 24px;
  margin: 0;
  color: var(--teal);
  font-size: 14px;
  font-weight: 800;
}

.site-footer {
  padding: 26px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #0d0d0d;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.footer-inner a {
  color: var(--orange-strong);
}

@media (max-width: 1060px) {
  .product-grid,
  .solution-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-card-main {
    grid-row: auto;
  }

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

  .pain-grid,
  .mechanism-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .flow-board {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .flow-line {
    display: none;
  }

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

@media (max-width: 820px) {
  .site-header {
    padding: 12px 20px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 71px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 20px 24px;
    color: var(--white);
    background: rgba(12, 12, 12, 0.96);
  }

  .brand-logo {
    width: 112px;
    height: 44px;
  }

  body.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .nav-cta {
    margin-top: 12px;
    padding-left: 14px;
    border-bottom: none;
    text-align: center;
  }

  .hero {
    min-height: 84vh;
    padding-top: 96px;
    padding-bottom: 36px;
  }

  .hero-content {
    padding-bottom: 0;
    transform: translateY(-20px);
  }

  .hero-content .eyebrow {
    margin-bottom: 12px;
    font-size: clamp(20px, 7vw, 30px);
  }

  .hero-copy {
    margin-bottom: 18px;
    font-size: 16px;
  }

  .two-column,
  .ladder-hero,
  .feature-wall,
  .operation-grid,
  .coverage-copy,
  .map-layout,
  .about-panel,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .feature-copy {
    position: static;
  }

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

  .company-points div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .product-grid,
  .ladder-four,
  .solution-list,
  .pain-grid,
  .mechanism-grid,
  .connection-grid,
  .operation-list,
  .evidence-stats,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .case-carousel-stage {
    grid-template-columns: 1fr;
  }

  .case-carousel-image {
    min-height: 260px;
  }

  .hero-badge {
    position: relative;
    right: auto;
    bottom: auto;
    z-index: 1;
    width: 100%;
    margin-bottom: 18px;
  }

  .product-card,
  .product-card-main,
  .ladder-four article,
  .solution-list article {
    min-height: auto;
  }

  .china-map-panel {
    height: 430px;
  }

  .city-pin {
    font-size: 11px;
    padding: 3px 6px;
  }

  .city-list-card {
    height: 340px;
  }

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

@media (max-width: 520px) {
  .section-inner {
    width: min(100% - 28px, 1160px);
  }

  section {
    padding: 56px 0;
  }

  h1 {
    font-size: 33px;
  }

  h2 {
    font-size: 26px;
  }

  .btn {
    width: 100%;
    min-height: 42px;
    padding: 10px 16px;
  }

  .hero-actions {
    width: 100%;
    gap: 10px;
  }

  .hero-panel div {
    padding: 14px;
  }

  .coverage-map {
    padding: 18px;
  }

  .coverage-copy h2 {
    font-size: 28px;
  }

  .china-map-panel {
    height: 360px;
  }

  .city-pin {
    transform: translate(-50%, -50%) scale(0.86);
  }

  .china-map-panel .city-pin:nth-of-type(n + 13) {
    display: none;
  }
}

/* Motion polish */
body.is-scrolled .site-header {
  padding-top: 10px;
  padding-bottom: 10px;
  background: rgba(12, 12, 12, 0.9);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.18);
}

.site-header {
  transition: padding 220ms ease, background 220ms ease, box-shadow 220ms ease;
}

.brand-logo {
  transition: width 220ms ease, height 220ms ease;
}

body.is-scrolled .brand-logo {
  width: 112px;
  height: 38px;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  transition: color 180ms ease, opacity 180ms ease;
}

.site-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  border-radius: 999px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 200ms ease;
}

.site-nav a:not(.nav-cta):hover::after,
.site-nav a:not(.nav-cta):focus-visible::after {
  transform: scaleX(1);
}

.nav-cta {
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  color: var(--ink);
  background: var(--orange);
  transform: translateY(-1px);
}

.hero-bg {
  animation: hero-drift 18s ease-in-out infinite alternate;
}

.hero-content .eyebrow,
.hero-content h1,
.hero-copy,
.hero-actions {
  opacity: 0;
  animation: fade-up 720ms ease forwards;
}

.hero-content .eyebrow {
  animation-delay: 120ms;
}

.hero-content h1 {
  animation-delay: 230ms;
}

.hero-copy {
  animation-delay: 340ms;
}

.hero-actions {
  animation-delay: 450ms;
}

.btn {
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24);
}

.btn:active {
  transform: translateY(0);
}

.btn.primary:hover,
.btn.primary:focus-visible {
  background: var(--orange-strong);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.16);
}

.flow-node {
  opacity: 0.64;
  transform: translateY(18px);
  transition: opacity 420ms ease, transform 420ms ease, background 420ms ease, color 420ms ease;
}

.flow-board.is-visible .flow-node {
  opacity: 1;
  transform: translateY(0);
}

.flow-board.is-visible .flow-node:nth-of-type(1) {
  transition-delay: 0ms;
}

.flow-board.is-visible .flow-node:nth-of-type(3) {
  transition-delay: 120ms;
}

.flow-board.is-visible .flow-node:nth-of-type(5) {
  transition-delay: 240ms;
}

.flow-board.is-visible .flow-node:nth-of-type(7) {
  transition-delay: 360ms;
}

.flow-board.is-complete .flow-node {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.flow-board.is-complete .flow-node.active {
  background: var(--orange);
  color: var(--ink);
}

.flow-line {
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 520ms ease;
}

.flow-board.is-visible .flow-line {
  transform: scaleX(1);
}

.product-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(242, 101, 34, 0.3);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.12);
}

.evidence-stats strong {
  font-variant-numeric: tabular-nums;
}

.real-map-frame img {
  animation: map-glow 5.8s ease-in-out infinite alternate;
}

.case-carousel-stage {
  transition: border-color 220ms ease, background 220ms ease;
}

.case-carousel-stage.is-changing {
  border-color: rgba(242, 101, 34, 0.48);
  background: rgba(255, 255, 255, 0.085);
}

.case-carousel-image {
  opacity: 1;
  transform: scale(1);
  transition: opacity 240ms ease, transform 520ms ease;
}

.case-carousel-stage.is-changing .case-carousel-image {
  opacity: 0.68;
  transform: scale(1.018);
}

.case-carousel-copy {
  transition: opacity 220ms ease, transform 220ms ease;
}

.case-carousel-stage.is-changing .case-carousel-copy {
  opacity: 0.72;
  transform: translateX(8px);
}

.case-carousel-dot {
  overflow: hidden;
  transition: width 180ms ease, background 180ms ease;
}

.case-carousel-dot.is-active {
  width: 56px;
}

.case-carousel-progress {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--yellow);
}

.case-carousel-dot.is-active .case-carousel-progress {
  animation: carousel-progress 5s linear forwards;
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 560ms ease, transform 560ms ease;
}

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

@keyframes hero-drift {
  from {
    transform: scale(1.01) translate3d(0, 0, 0);
  }

  to {
    transform: scale(1.06) translate3d(1.2%, -1%, 0);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes map-glow {
  from {
    filter: saturate(1) brightness(1);
  }

  to {
    filter: saturate(1.12) brightness(1.08);
  }
}

@keyframes carousel-progress {
  from {
    width: 0;
  }

  to {
    width: 100%;
  }
}

@media (max-width: 820px) {
  body.is-scrolled .site-header {
    padding: 10px 20px;
  }

  .site-nav a:not(.nav-cta)::after {
    bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .reveal-on-scroll,
  .hero-content .eyebrow,
  .hero-content h1,
  .hero-copy,
  .hero-actions {
    opacity: 1;
    transform: none;
  }
}

/* Typography and responsive tuning */
.top-anchor {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

body {
  font-size: 15.5px;
}

.site-nav {
  gap: clamp(14px, 1.6vw, 20px);
  font-size: 13.5px;
}

.hero {
  min-height: 76vh;
}

.hero-content {
  max-width: 780px;
}

.hero-content .eyebrow {
  margin-bottom: 14px;
  font-size: clamp(20px, 2.55vw, 34px);
}

h1 {
  max-width: 700px;
  margin-bottom: 18px;
  font-size: clamp(31px, 4.15vw, 54px);
  line-height: 1.08;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(24px, 2.85vw, 38px);
  line-height: 1.14;
}

h3 {
  font-size: 18px;
}

.hero-copy {
  max-width: 580px;
  font-size: 16px;
}

.section-heading .eyebrow,
.definition-block .eyebrow,
.feature-copy .eyebrow,
.connection-panel .eyebrow,
.contact-layout .eyebrow,
.about-panel .eyebrow,
.cases-section .eyebrow {
  font-size: clamp(18px, 1.75vw, 25px);
}

.section-heading p,
.coverage-copy p:last-child,
.case-copy,
.contact-layout > div p:last-child {
  font-size: 16px;
}

.wechat-copy strong {
  font-size: 16px;
}

.wechat-copy span {
  font-size: 14px;
}

.large-copy {
  font-size: clamp(20px, 2.3vw, 30px);
}

.problem-section h2 {
  font-size: clamp(28px, 3.35vw, 42px);
}

.flow-node strong {
  font-size: 20px;
}

.flow-node p,
.product-card p,
.solution-list p,
.ladder-four p,
.feature-list span,
.company-points span {
  font-size: 15px;
}

.product-card-main h3 {
  font-size: clamp(25px, 2.55vw, 34px);
}

.product-card {
  min-height: 270px;
}

.product-card-main {
  min-height: 390px;
}

.ladder-copy p {
  font-size: clamp(16px, 1.9vw, 22px);
}

.belief-strip p {
  font-size: clamp(17px, 1.9vw, 23px);
}

.belief-strip strong {
  font-size: clamp(20px, 2.45vw, 30px);
}

.ladder-four h3 {
  font-size: clamp(19px, 1.75vw, 23px);
}

.coverage-copy h2 {
  font-size: clamp(25px, 3.2vw, 40px);
  line-height: 1.08;
}

.evidence-stats strong {
  font-size: clamp(26px, 2.75vw, 38px);
}

.case-carousel-title {
  font-size: clamp(22px, 2.4vw, 31px);
}

.case-carousel-description {
  font-size: 16px;
}

.about-copy p,
.company-points strong,
.contact-form label {
  font-size: 15.5px;
}

section {
  padding: clamp(60px, 6.8vw, 94px) 0;
}

@media (max-width: 1200px) {
  .section-inner {
    width: min(100% - 36px, 1080px);
  }

  .hero {
    min-height: 72vh;
  }

  .product-grid {
    grid-template-columns: minmax(280px, 1.1fr) repeat(2, minmax(0, 1fr));
  }

  .solution-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    gap: 16px;
  }

  .hero {
    min-height: 72vh;
    padding-top: 88px;
  }

  .hero-content {
    transform: translateY(-10px);
  }

  .two-column,
  .ladder-hero,
  .coverage-copy,
  .case-builder-heading,
  .case-proof-layout,
  .about-panel,
  .contact-layout {
    gap: 24px;
  }

  .product-grid,
  .solution-list,
  .ladder-four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-carousel-stage {
    grid-template-columns: 1fr;
  }

  .case-builder-heading,
  .case-proof-layout {
    grid-template-columns: 1fr;
  }

  .case-builder-heading h2 {
    white-space: normal;
  }

  .case-carousel-copy {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .section-inner {
    width: min(100% - 28px, 1160px);
  }

  section {
    padding: 50px 0;
  }

  .hero {
    min-height: 70vh;
    padding: 88px 18px 34px;
  }

  .hero-content .eyebrow {
    font-size: 24px;
  }

  h1 {
    font-size: 30px;
    line-height: 1.12;
  }

  h2 {
    font-size: 23px;
  }

  .large-copy {
    font-size: 19px;
  }

  .product-grid,
  .solution-list,
  .ladder-four,
  .evidence-stats,
  .case-proof-metrics,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .product-card,
  .product-card-main,
  .ladder-four article,
  .solution-list article {
    min-height: auto;
  }

  .coverage-map,
  .case-builder,
  .about-panel,
  .contact-form {
    padding: 18px;
  }

  .case-carousel-image {
    min-height: 220px;
  }

  .case-proof-media {
    aspect-ratio: 4 / 3;
  }

  .case-carousel-controls {
    gap: 10px;
  }

  .case-carousel-button {
    width: 38px;
    height: 38px;
    font-size: 26px;
  }
}

.footer-legal { display: flex; gap: 18px; align-items: center; }
.footer-legal a { color: inherit; font-size: 13px; text-decoration: none; opacity: 0.78; }
.footer-legal a:hover { opacity: 1; text-decoration: underline; }

@media (max-width: 640px) {
  .footer-inner { gap: 14px; flex-wrap: wrap; }
  .footer-legal { order: 3; width: 100%; }
}

@media (max-width: 420px) {
  .brand-logo {
    width: 104px;
    height: 38px;
  }

  body.is-scrolled .brand-logo {
    width: 98px;
    height: 34px;
  }

  .hero {
    min-height: 68vh;
  }

  h1 {
    font-size: 27px;
  }

  h2 {
    font-size: 22px;
  }

  .hero-copy,
  .section-heading p,
  .coverage-copy p:last-child,
  .case-copy,
  .contact-layout > div p:last-child {
    font-size: 15px;
  }

  .wechat-card {
    grid-template-columns: 112px minmax(0, 1fr);
    max-width: none;
    margin-top: 22px;
  }

  .btn {
    min-height: 40px;
    padding: 9px 14px;
    font-size: 14px;
  }

  .case-carousel-dot {
    width: 32px;
  }

  .case-carousel-dot.is-active {
    width: 44px;
  }

  .wechat-card {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .wechat-qr-frame {
    width: 180px;
  }
}

/* Typography redesign pass */
h1,
h2,
h3,
.eyebrow,
.section-heading .eyebrow,
.product-index,
.product-tag,
.flow-node span,
.flow-node strong,
.ladder-four span,
.league-strip span,
.league-strip strong,
.solution-list h3,
.case-carousel-count,
.case-tags span,
.evidence-stats strong,
.btn,
.site-nav,
.contact-form label {
  font-family: var(--font-display);
}

.site-nav,
.btn,
.product-index,
.flow-node span,
.ladder-four span,
.league-strip span,
.case-carousel-count,
.case-tags span,
.evidence-stats strong {
  font-family: var(--font-label);
}

h1,
h2,
h3 {
  font-weight: 900;
  text-wrap: balance;
}

h1 {
  line-height: 1.03;
}

h2 {
  line-height: 1.12;
}

h3 {
  line-height: 1.18;
}

p,
.large-copy,
.case-copy,
.about-copy,
.feature-list span,
.company-points span,
.solution-list p {
  font-weight: 400;
}

.hero-copy,
.section-heading p,
.case-copy,
.contact-layout > div p:last-child {
  line-height: 1.82;
}

.eyebrow,
.section-heading .eyebrow,
.product-index,
.case-carousel-count,
.case-tags span {
  font-weight: 800;
}

.site-nav {
  font-weight: 700;
}

.btn {
  font-weight: 800;
}

/* Arena redesign pass */
:root {
  --arena: #101312;
  --arena-deep: #080a09;
  --felt: #0f4d3e;
  --felt-dark: #0a2d27;
  --gold: #c6a96f;
  --steel: #aeb8b5;
  --cream: #f3efe5;
}

body {
  background: var(--arena);
}

.site-header {
  background: rgba(8, 10, 9, 0.78);
  border-bottom-color: rgba(198, 169, 111, 0.22);
}

body.is-scrolled .site-header {
  background: rgba(8, 10, 9, 0.94);
}

.nav-cta {
  background: var(--orange);
  color: #10100f;
}

.hero {
  min-height: 92vh;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.48fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: end;
  padding-bottom: clamp(52px, 7vw, 92px);
}

.hero-bg {
  background-position: center right;
  filter: saturate(1.08) contrast(1.06);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(5, 8, 7, 0.96) 0%, rgba(5, 8, 7, 0.78) 43%, rgba(5, 8, 7, 0.3) 100%),
    linear-gradient(0deg, rgba(5, 8, 7, 0.9) 0%, rgba(5, 8, 7, 0.1) 52%);
}

.hero-content {
  align-self: center;
  max-width: 820px;
  transform: translateY(8px);
}

.hero > * {
  min-width: 0;
}

.hero-content .eyebrow,
.hero-content h1,
.hero-copy,
.hero-actions {
  opacity: 1;
  animation: none;
}

.hero-content .eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border-left: 3px solid var(--orange);
  color: var(--gold);
  background: rgba(255, 255, 255, 0.06);
  font-size: clamp(18px, 1.8vw, 28px);
}

h1 {
  max-width: 760px;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 1.02;
  overflow-wrap: anywhere;
}

.hero-copy {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(17px, 1.5vw, 20px);
}

.hero-title-line,
.hero-copy-line,
.title-line {
  display: block;
}

.problem-section,
.products-section,
.ladder-content,
.about-section {
  background: var(--cream);
}

.problem-section {
  padding-top: clamp(64px, 7vw, 96px);
  border-top: 1px solid rgba(198, 169, 111, 0.18);
}

.problem-section h2,
.section-heading h2 {
  color: #111;
}

.ecosystem-section {
  background:
    linear-gradient(180deg, #0b0d0c 0%, #10261f 100%);
}

.flow-node {
  border-color: rgba(198, 169, 111, 0.22);
  background: rgba(255, 255, 255, 0.045);
}

.flow-node.active {
  background: var(--gold);
}

.flow-line {
  background: linear-gradient(90deg, var(--orange), var(--gold));
}

.product-card {
  border-color: rgba(17, 17, 17, 0.1);
  box-shadow: 0 12px 34px rgba(20, 20, 20, 0.06);
}

.product-card.featured {
  background:
    linear-gradient(145deg, rgba(15, 77, 62, 0.94), rgba(8, 10, 9, 0.98));
  border-color: rgba(198, 169, 111, 0.28);
}

.product-card-main h3 {
  color: var(--white);
}

.ladder-lead {
  background:
    linear-gradient(135deg, rgba(8, 10, 9, 0.98) 0%, rgba(10, 45, 39, 0.98) 54%, rgba(242, 101, 34, 0.92) 100%);
}

.ladder-kv-card {
  border-color: rgba(198, 169, 111, 0.34);
}

.belief-strip {
  background:
    linear-gradient(135deg, var(--arena-deep), var(--felt-dark));
  border: 1px solid rgba(198, 169, 111, 0.22);
}

.ladder-four article {
  background: #fffaf0;
}

.ladder-four article:nth-child(2n) {
  background:
    linear-gradient(145deg, #101312, #0f4d3e);
  border-color: rgba(198, 169, 111, 0.28);
}

.league-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.league-strip div {
  min-height: 154px;
  padding: 20px;
  border: 1px solid rgba(18, 18, 18, 0.12);
  border-radius: 8px;
  background: var(--white);
}

.league-strip span {
  display: block;
  margin-bottom: 30px;
  color: var(--orange);
  font-weight: 900;
}

.league-strip strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.12;
}

.league-strip p {
  margin: 0;
  color: var(--muted);
}

.solutions-section {
  background:
    linear-gradient(180deg, #f5f0e6 0%, #e9e2d3 100%);
}

.solution-list article {
  border-color: rgba(17, 17, 17, 0.1);
  background: rgba(255, 255, 255, 0.86);
}

.solution-list article:nth-child(3) {
  color: var(--white);
  background:
    linear-gradient(145deg, var(--arena-deep), var(--felt));
  border-color: rgba(198, 169, 111, 0.28);
}

.solution-list article:nth-child(3) p {
  color: rgba(255, 255, 255, 0.76);
}

.cases-section {
  background:
    linear-gradient(180deg, #0b0d0c 0%, #101312 52%, #080a09 100%);
}

.case-tags span {
  background: rgba(198, 169, 111, 0.9);
}

.coverage-map,
.case-carousel-stage {
  border-color: rgba(198, 169, 111, 0.2);
}

.about-panel {
  background: #fffaf0;
}

.contact-section {
  background:
    linear-gradient(135deg, #080a09, #10261f);
}

.contact-form {
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.22);
}

@media (max-width: 1060px) {
  .hero {
    grid-template-columns: 1fr;
    align-items: end;
  }

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

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding-top: 92px;
  }

  h1 {
    font-size: 36px;
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .hero-copy {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .hero-content {
    width: 100%;
    max-width: 100%;
    transform: none;
  }

  .hero-title-line,
  .hero-copy-line,
  .title-line {
    display: block;
  }

  .league-strip {
    grid-template-columns: 1fr;
  }
}

/* Final type tuning */
.hero-content .eyebrow {
  font-family: var(--font-label);
  font-weight: 800;
}

.hero-content h1 {
  font-family: var(--font-display);
  max-width: 900px;
  font-size: clamp(36px, 4.4vw, 62px);
  font-weight: 850;
  line-height: 1.12;
}

.hero-title-line {
  display: block;
}

.hero-copy {
  font-family: var(--font-sans);
  font-weight: 400;
  overflow-wrap: break-word;
}

.ecosystem-section .section-heading h2 {
  color: var(--white);
}

.ecosystem-section .section-heading p {
  color: rgba(255, 255, 255, 0.82);
}

.brand-logo {
  image-rendering: auto;
}

.large-copy {
  line-height: 1.42;
}

.feature-list strong,
.company-points strong,
.wechat-copy strong {
  font-family: var(--font-display);
  font-weight: 850;
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: clamp(27px, 7.4vw, 30px);
    line-height: 1.18;
  }

  .hero-copy {
    line-height: 1.72;
  }
}