@charset "UTF-8";

:root {
  color-scheme: light;
  --content-gutter: 56px;
  --paper: #f8f7f4;
  --ink: #142139;
  --muted: #62676d;
  --line: #dedfdf;
  --blue: #295bd6;
  --lime: #9dbb2a;
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", "Noto Serif SC", serif;
  --sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei",
    "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 106px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
body:has(dialog[open]) {
  overflow: hidden;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  cursor: pointer;
}
button,
summary,
a {
  touch-action: manipulation;
}
button:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 6px;
}
::selection {
  color: var(--ink);
  background: #e1edb6;
}
.container {
  width: min(1216px, calc(100% - 112px));
  margin-inline: auto;
}
.section {
  padding-block: 88px;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.035em;
}
h2 {
  font-size: clamp(29px, 3.05vw, 42px);
  line-height: 1.5;
}
h3 {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 600;
  line-height: 1.5;
}
p {
  line-height: 1.85;
}
.eyebrow {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
  margin-bottom: 17px;
}
.accent-line {
  display: block;
  width: 33px;
  height: 3px;
  background: var(--lime);
  margin-top: 20px;
}
.accent-line.blue {
  background: var(--blue);
  width: 23px;
  height: 2px;
}
.section-description {
  color: var(--muted);
  font-size: 15px;
  margin-top: 28px;
  max-width: 650px;
}
.skip-link {
  position: fixed;
  top: -70px;
  left: 20px;
  z-index: 30;
  padding: 12px 20px;
  background: white;
}
.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgb(248 247 244 / 96%);
}
.header-inner {
  min-height: 83px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
}
.brand-logo {
  display: block;
  width: auto;
  height: 46px;
  object-fit: contain;
}
.desktop-navigation {
  display: flex;
  gap: 29px;
  margin-left: auto;
  margin-right: auto;
}
.desktop-navigation a {
  font-size: 13px;
  padding-block: 10px;
}
.desktop-navigation a:hover,
.site-footer a:hover {
  color: var(--blue);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 25px;
}
.text-action {
  border: 0;
  background: none;
  color: inherit;
  padding: 8px 0;
  font-size: 13px;
  white-space: nowrap;
}
.text-action:hover {
  color: var(--blue);
}
.text-action span {
  display: inline-block;
  margin-left: 8px;
}
.platform-action {
  color: var(--blue);
}
.mobile-navigation {
  display: none;
}

.hero {
  position: relative;
  isolation: isolate;
  max-width: 1600px;
  margin-inline: auto;
  min-height: 600px;
  overflow: hidden;
}
.hero-image {
  position: absolute;
  width: 100%;
  height: 100%;
  right: 0;
  top: 0;
  object-fit: cover;
  object-position: center center;
  z-index: -2;
}
.hero::after {
  position: absolute;
  content: "";
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    90deg,
    var(--paper) 0%,
    rgb(248 247 244 / 94%) 12%,
    rgb(248 247 244 / 48%) 27%,
    transparent 42%,
    transparent 76%,
    rgb(248 247 244 / 35%) 87%,
    rgb(248 247 244 / 88%) 96%,
    var(--paper) 100%
  );
}
.hero-inner {
  min-height: 600px;
  display: flex;
  align-items: center;
  padding-block: 75px 84px;
}
.hero-copy {
  max-width: 650px;
}
:where(.hero) .eyebrow {
  margin-bottom: 29px;
}
h1 {
  font-size: clamp(44px, 4.2vw, 60px);
  line-height: 1.38;
  letter-spacing: -0.035em;
  white-space: nowrap;
}
.hero-description {
  margin-top: 28px;
  color: #414b56;
  font-size: 16px;
  line-height: 1.95;
}
.outline-action {
  display: inline-flex;
  align-items: center;
  gap: 36px;
  border: 1px solid var(--ink);
  padding: 13px 22px;
  font-size: 14px;
  line-height: 1.5;
  transition:
    background 0.2s,
    color 0.2s;
}
.outline-action:hover {
  background: var(--ink);
  color: white;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px 30px;
  margin-top: 38px;
}
.mobile-break {
  display: none;
}

.intro {
  padding-bottom: 0;
}
.audiences {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  padding: 0;
  margin: 31px 0 61px;
  font-size: 16px;
}
.audiences li + li::before {
  content: "/";
  margin-inline: 30px;
  color: #a3a6a5;
  font-weight: 300;
}
.value-row {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 100px 1fr;
  align-items: center;
  min-height: 135px;
  padding-block: 29px;
}
.value-row:last-child {
  border-bottom: 1px solid var(--line);
}
.value-row > div {
  padding-left: 31px;
  border-left: 1px solid var(--line);
}
.value-row h3 {
  margin-bottom: 7px;
  font-size: 27px;
}
:where(.value-row) p {
  color: var(--muted);
  font-size: 14px;
}
.line-icon {
  width: 34px;
  height: 34px;
  stroke: var(--ink);
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-left: 18px;
}

.ai-section {
  padding-bottom: 0;
}
.ai-eyebrow {
  color: var(--blue);
}
.ai-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 64px;
  margin-top: 42px;
}
.ai-values article {
  padding-block: 25px;
  border-top: 1px solid var(--line);
}
.ai-values h3 {
  font-size: 23px;
  margin-bottom: 12px;
}
:where(.ai-values) p {
  max-width: 380px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}
.ai-showcase {
  min-width: 0;
  padding: 28px;
  border: 1px solid #dce4e8;
  border-radius: 8px;
  background: linear-gradient(135deg, #f2f6fa, #f7f8f4);
}
.ai-showcase-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  font-weight: 500;
}
.ai-example-badge {
  padding: 4px 9px;
  border: 1px solid #d5e1ef;
  border-radius: 4px;
  color: var(--blue);
  background: #fff;
  font-size: 11px;
  font-weight: 400;
}
.ai-scenarios {
  display: flex;
  align-items: stretch;
  gap: 18px;
  min-width: 0;
  padding: 0;
  margin-block: 19px 25px;
  border: 0;
  border-bottom: 1px solid #d5dee5;
}
.ai-scenarios[hidden] {
  display: none;
}
.ai-scenarios button {
  flex: 1;
  min-width: 0;
  min-height: 49px;
  padding: 11px 0;
  margin-bottom: -1px;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  background: transparent;
  font-size: 12px;
  line-height: 1.7;
  text-align: left;
}
.ai-scenarios button[aria-pressed="true"] {
  border-bottom-color: var(--blue);
  color: var(--blue);
}
.ai-example-content {
  min-height: 330px;
}
.ai-scenario-title {
  margin-top: 25px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
}
.ai-response-label {
  margin-top: 22px;
  color: #4e6070;
  font-size: 11px;
  letter-spacing: 0.08em;
}
.ai-steps {
  padding-left: 21px;
  margin: 9px 0 0;
  color: #455568;
  font-size: 13px;
  line-height: 1.95;
}
:where(.ai-steps li + li) {
  margin-top: 6px;
}
.ai-wording {
  padding: 14px 17px;
  margin-top: 22px;
  border-left: 2px solid #9bb2d2;
  background: rgb(255 255 255 / 68%);
}
.ai-wording > span {
  color: #526780;
  font-size: 11px;
}
.ai-wording p {
  margin-top: 6px;
  color: #455568;
  font-size: 13px;
  line-height: 1.9;
}
.ai-reference {
  padding-top: 18px;
  color: #526780;
  font-size: 11px;
}
.ai-example-note {
  padding-top: 18px;
  margin-top: 20px;
  border-top: 1px solid #dce4e8;
  color: #687580;
  font-size: 11px;
  line-height: 1.8;
}

.journey {
  padding-bottom: 0;
}
.journey-list {
  padding: 40px 0 34px;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-bottom: 1px solid var(--line);
}
:where(.journey-list) li {
  position: relative;
  padding-inline: 23px;
}
.journey-list li:first-child {
  padding-left: 0;
}
:where(.journey-list) li + li {
  border-left: 1px solid var(--line);
}
.step-number {
  display: block;
  color: #80878a;
  font-size: 11px;
  margin-bottom: 15px;
  font-variant-numeric: tabular-nums;
}
.journey-list h3 {
  font-size: 23px;
  margin-bottom: 12px;
}
.journey-list p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.capabilities {
  padding-bottom: 72px;
}
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 42px;
}
.capability-grid article {
  display: flex;
  flex-direction: column;
  padding-inline: 24px;
}
.capability-grid article:first-child {
  padding-left: 0;
}
.capability-grid article:last-child {
  padding-right: 0;
}
.capability-grid article + article {
  border-left: 1px solid var(--line);
}
.capability-grid h3 {
  font-size: 23px;
  margin-bottom: 16px;
}
.capability-grid p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}
.feature-note {
  display: block;
  color: #747b7e;
  font-size: 11px;
  letter-spacing: 0.05em;
  margin-top: auto;
  padding-top: 28px;
}

.approach {
  border-block: 1px solid var(--line);
  background: #f3f3ef;
}
.approach .section {
  padding-block: 64px;
}
.participation-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
}
.participation-items li {
  padding-block: 12px;
  text-align: center;
  font-size: 17px;
  font-family: var(--serif);
}
.closing {
  padding-block: 83px 92px;
}
.closing-actions {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-top: 34px;
}
:where(.closing) h2 {
  font-size: clamp(31px, 3.4vw, 46px);
}
.closing .text-action {
  color: var(--muted);
}

.site-footer {
  color: #eef1f6;
  background: #142139;
}
.footer-inner {
  min-height: 103px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
}
.site-footer .wordmark {
  font-size: 17px;
}
.site-footer nav {
  display: flex;
  gap: 26px;
  color: #c6cdd7;
  font-size: 12px;
}
.site-footer a:hover,
.site-footer button:hover {
  color: #d9e8a1;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgb(238 241 246 / 12%);
  padding-block: 19px 23px;
  color: #b6becb;
  font-size: 11px;
}

dialog {
  color: var(--ink);
  width: min(500px, calc(100% - 36px));
  max-height: calc(100dvh - 48px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  box-shadow: 0 30px 100px rgb(20 33 57 / 12%);
  overflow: auto;
}
dialog::backdrop {
  background: rgb(20 33 57 / 35%);
  backdrop-filter: blur(4px);
}
.dialog-content {
  padding: 32px;
}
.dialog-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.dialog-heading .eyebrow {
  margin: 0;
}
.dialog-close {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 27px;
  line-height: 1;
}
dialog h2 {
  font-size: 31px;
}
#platform-dialog-description {
  color: var(--muted);
  font-size: 13px;
  margin-top: 13px;
}
.platform-links {
  margin-top: 26px;
}
.platform-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding: 20px 0;
}
.platform-links a:last-child {
  border-bottom: 1px solid var(--line);
}
.platform-links a:hover {
  color: var(--blue);
}
.platform-links strong {
  font-size: 17px;
  font-weight: 500;
}
.platform-links small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}
.noscript-entries {
  margin: 0;
  text-align: center;
  padding: 22px;
  font-size: 13px;
}
.noscript-entries a {
  color: var(--blue);
  text-decoration: underline;
}

@media (min-width: 1600px) {
  .hero,
  .hero-inner {
    min-height: 650px;
  }
  .hero-image {
    width: 100%;
    object-position: center center;
  }
}

@media (max-width: 1100px) {
  :root {
    --content-gutter: 36px;
  }
  .container {
    width: calc(100% - 72px);
  }
  .desktop-navigation {
    gap: 19px;
  }
  .header-actions {
    gap: 19px;
  }
  .wordmark {
    font-size: 17px;
    gap: 8px;
  }
  .header-inner {
    gap: 18px;
  }
  .footer-inner {
    flex-wrap: wrap;
    padding-block: 30px;
    gap: 25px;
  }
  .site-footer nav {
    margin-left: auto;
  }
}

@media (max-width: 900px) {
  .desktop-navigation,
  .demo-action {
    display: none;
  }
  .header-inner {
    min-height: 72px;
  }
  .mobile-navigation {
    display: block;
  }
  .mobile-navigation summary {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    list-style: none;
    font-size: 13px;
    padding-block: 10px;
  }
  .mobile-navigation summary::-webkit-details-marker {
    display: none;
  }
  .mobile-navigation summary span {
    font-size: 19px;
    color: var(--muted);
  }
  .mobile-navigation[open] summary span {
    transform: rotate(45deg);
  }
  .mobile-navigation nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    display: grid;
    padding: 12px 36px 23px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 20px rgb(20 33 57 / 3%);
  }
  .mobile-navigation nav a,
  .mobile-navigation nav button {
    padding: 14px 0;
    text-align: left;
    font-size: 14px;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: none;
    color: var(--ink);
  }
  .hero,
  .hero-inner {
    min-height: 560px;
  }
  .hero-image {
    width: 100%;
    right: 0;
  }
  .hero::after {
    background: linear-gradient(
      90deg,
      var(--paper) 0%,
      rgb(248 247 244 / 94%) 20%,
      rgb(248 247 244 / 38%) 38%,
      transparent 56%,
      transparent 78%,
      rgb(248 247 244 / 58%) 92%,
      var(--paper) 100%
    );
  }
  .section {
    padding-block: 67px;
  }
  .intro,
  .journey {
    padding-bottom: 0;
  }
  .ai-section {
    padding-bottom: 0;
  }
  .ai-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .ai-values {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
  .ai-values h3 {
    font-size: 21px;
  }
  .capability-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 35px 0;
  }
  .capability-grid article {
    padding-inline: 22px;
  }
  .capability-grid article:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }
  .capability-grid article:nth-child(even) {
    padding-right: 0;
  }
  .footer-inner .text-action {
    margin-left: auto;
  }
  .site-footer nav {
    order: 3;
    width: 100%;
    margin-left: 0;
  }
}

@media (max-width: 600px) {
  :root {
    --content-gutter: 20px;
  }
  html {
    scroll-padding-top: 90px;
  }
  .container {
    width: calc(100% - 40px);
  }
  .header-inner {
    min-height: 68px;
    gap: 10px;
  }
  .wordmark {
    font-size: 15px;
    gap: 7px;
  }
  .brand-logo {
    height: 37px;
  }
  .header-actions {
    gap: 16px;
  }
  .platform-action {
    font-size: 12px;
  }
  .mobile-navigation summary {
    font-size: 12px;
    gap: 5px;
  }
  .mobile-navigation nav {
    padding-inline: 20px;
  }
  .hero {
    min-height: 650px;
  }
  .hero-inner {
    min-height: 650px;
    align-items: flex-start;
    padding-block: 52px;
  }
  .hero-image {
    width: calc(100% - (var(--content-gutter) * 2));
    right: var(--content-gutter);
    height: 58%;
    top: auto;
    bottom: 0;
    object-position: 61% 75%;
  }
  .hero::after {
    background: linear-gradient(
      180deg,
      var(--paper) 0%,
      var(--paper) 37%,
      rgb(248 247 244 / 96%) 46%,
      rgb(248 247 244 / 25%) 65%,
      transparent 85%
    );
  }
  :where(.hero) .eyebrow {
    margin-bottom: 19px;
  }
  h1 {
    font-size: clamp(36px, 10.2vw, 52px);
    line-height: 1.45;
    white-space: normal;
  }
  .hero-description {
    font-size: 14px;
    margin-top: 23px;
    max-width: 340px;
  }
  .hero-actions {
    gap: 14px 24px;
    margin-top: 25px;
  }
  .outline-action {
    font-size: 13px;
    gap: 25px;
    padding: 12px 19px;
  }
  .section {
    padding-block: 56px;
  }
  .intro,
  .journey {
    padding-bottom: 0;
  }
  .ai-section {
    padding-bottom: 0;
  }
  .ai-grid {
    margin-top: 29px;
  }
  .ai-values {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .ai-values article {
    padding-block: 20px;
  }
  :where(.ai-values) p {
    font-size: 13px;
  }
  .ai-showcase {
    padding: 20px;
  }
  .ai-scenarios {
    gap: 13px;
  }
  .ai-scenarios button {
    font-size: 11px;
  }
  .ai-scenario-title {
    font-size: 15px;
  }
  .ai-example-content {
    min-height: 400px;
  }
  .ai-wording {
    padding-inline: 13px;
  }
  h2 {
    font-size: clamp(26px, 6.7vw, 31px);
    line-height: 1.55;
  }
  .eyebrow {
    font-size: 11px;
    letter-spacing: 0.08em;
    margin-bottom: 14px;
  }
  .accent-line {
    margin-top: 16px;
  }
  .audiences {
    display: grid;
    grid-template-columns: 1fr 1fr;
    row-gap: 17px;
    font-size: 14px;
    margin-block: 27px 37px;
  }
  .audiences li + li::before {
    content: none;
  }
  .audiences li:nth-child(even) {
    border-left: 1px solid var(--line);
    padding-left: 22px;
  }
  .value-row {
    grid-template-columns: 54px 1fr;
    min-height: 143px;
    padding-block: 25px;
  }
  .value-row > div {
    padding-left: 17px;
  }
  .value-row h3 {
    font-size: 23px;
    margin-bottom: 8px;
  }
  :where(.value-row) p {
    font-size: 13px;
    line-height: 1.9;
  }
  .line-icon {
    width: 28px;
    height: 28px;
    margin-left: 0;
  }
  .mobile-break {
    display: inline;
  }
  .desktop-break {
    display: none;
  }
  .journey-list {
    grid-template-columns: 1fr 1fr;
    gap: 30px 0;
    padding-block: 32px;
  }
  :where(.journey-list) li {
    padding-inline: 22px;
  }
  .journey-list li:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }
  .journey-list h3,
  .capability-grid h3 {
    font-size: 21px;
  }
  .journey-list p {
    font-size: 13px;
  }
  .step-number {
    margin-bottom: 10px;
  }
  .capability-grid {
    margin-top: 32px;
    gap: 32px 0;
  }
  .capability-grid article {
    padding-inline: 18px;
  }
  .capability-grid h3 {
    margin-bottom: 11px;
  }
  .capability-grid p {
    font-size: 13px;
  }
  .feature-note {
    font-size: 10px;
    padding-top: 17px;
    letter-spacing: 0;
  }
  .approach .section {
    padding-block: 48px;
  }
  .section-description {
    font-size: 13px;
    margin-top: 23px;
  }
  .participation-items {
    grid-template-columns: 1fr;
    gap: 22px;
    margin-top: 27px;
  }
  .participation-items li {
    font-size: 16px;
  }
  :where(.closing) h2 {
    font-size: clamp(27px, 7vw, 33px);
  }
  .closing-actions {
    gap: 28px;
    margin-top: 30px;
  }
  .site-footer .wordmark {
    font-size: 14px;
  }
  .footer-inner {
    gap: 27px 16px;
    padding-block: 30px;
  }
  .site-footer nav {
    gap: 0;
    justify-content: space-between;
    font-size: 11px;
  }
  .footer-bottom {
    font-size: 10px;
    gap: 12px;
    padding-bottom: 25px;
  }
  .dialog-content {
    padding: 24px;
  }
  dialog h2 {
    font-size: 27px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .outline-action {
    transition: none;
  }
}