:root {
  --bg: #f7f9fe;
  --bg-secondary: #edf2fa;
  --surface: #fefeff;
  --surface-secondary: #f1f5fb;
  --text: #121826;
  --text-secondary: rgba(18, 24, 38, 0.69);
  --text-tertiary: rgba(18, 24, 38, 0.48);
  --primary: #3c79eb;
  --primary-deep: #1f5fcf;
  --primary-soft: #eaf1ff;
  --border: rgba(143, 160, 190, 0.24);
  --shadow: 0 26px 70px rgba(35, 65, 116, 0.12), 0 4px 18px rgba(35, 65, 116, 0.06);
  --page-width: 1280px;
  --header-height: 76px;
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

button {
  color: inherit;
  font: inherit;
}

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

img {
  display: block;
  height: auto;
  max-width: 100%;
}

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

h1,
h2,
h3 {
  line-height: 1.12;
  text-wrap: balance;
}

:focus-visible {
  outline: 3px solid rgba(60, 121, 235, 0.5);
  outline-offset: 4px;
}

::selection {
  background: var(--primary-soft);
  color: var(--primary-deep);
}

.skip-link {
  position: fixed;
  z-index: 300;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: #fff;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgba(247, 249, 254, 0.78);
  backdrop-filter: blur(20px) saturate(135%);
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.site-header-scrolled {
  border-color: var(--border);
  background: rgba(254, 254, 255, 0.94);
  box-shadow: 0 10px 28px rgba(35, 65, 116, 0.07);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--page-width));
  height: 100%;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.45px;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.3vw, 34px);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
}

.primary-nav a {
  position: relative;
  padding: 10px 0;
  transition: color 160ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--primary);
  content: "";
  opacity: 0;
  transform: scaleX(0.3);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.primary-nav a:hover,
.primary-nav a[aria-current="location"] {
  color: var(--text);
}

.primary-nav a:hover::after,
.primary-nav a[aria-current="location"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  min-width: 52px;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  font-size: 14px;
  font-weight: 600;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--primary-deep);
  box-shadow: 0 9px 22px rgba(31, 95, 207, 0.26);
  color: #fff;
}

.button-primary:hover {
  background: #174fae;
  box-shadow: 0 12px 28px rgba(23, 79, 174, 0.3);
}

.button-secondary {
  border-color: rgba(60, 121, 235, 0.34);
  background: rgba(254, 254, 255, 0.76);
  color: var(--primary-deep);
}

.button-secondary:hover {
  border-color: var(--primary);
  background: var(--surface);
}

.button-small {
  min-height: 42px;
  padding: 10px 18px;
  font-size: 14px;
}

.hero {
  position: relative;
  display: flex;
  min-height: 100svh;
  align-items: center;
  overflow: clip;
  background: var(--bg);
}

.hero-inner {
  display: grid;
  width: min(calc(100% - 72px), 1380px);
  min-height: 760px;
  align-items: center;
  margin: 0 auto;
  padding: calc(var(--header-height) + 42px) 0 48px;
  grid-template-columns: minmax(410px, 0.84fr) minmax(600px, 1.16fr);
  gap: clamp(18px, 3.4vw, 60px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.eyebrow {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  margin-bottom: 24px;
  padding: 5px 12px;
  border: 1px solid rgba(60, 121, 235, 0.22);
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hero-brand {
  margin-bottom: 20px;
  color: var(--primary);
  font-size: clamp(54px, 5vw, 76px);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.hero h1 {
  max-width: 620px;
  margin-bottom: 24px;
  font-size: clamp(38px, 3.3vw, 52px);
  font-weight: 700;
  letter-spacing: -0.045em;
}

.hero h1 span {
  color: inherit;
}

.hero-summary {
  max-width: 580px;
  margin-bottom: 34px;
  color: var(--text-secondary);
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.75;
}

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

.hero-visual {
  position: relative;
  width: min(100%, 820px);
  margin: 0;
  justify-self: end;
  transform: translateY(var(--parallax-offset, 0));
  transition: transform 80ms linear;
}

.hero-visual img {
  width: 100%;
  border-radius: 38px;
  box-shadow: var(--shadow);
}

.not-found-page .hero-inner {
  grid-template-columns: minmax(0, 720px);
  min-height: calc(100svh - 80px);
}

.feature-section,
.capability-section {
  padding: 124px 0;
  background: var(--surface);
}

.feature-section-call {
  padding-top: 30px;
  background: var(--surface);
}

.section-grid,
.section-shell,
.final-cta-inner,
.site-footer-inner {
  width: min(calc(100% - 72px), var(--page-width));
  margin: 0 auto;
}

.section-grid {
  display: grid;
  align-items: center;
  gap: clamp(44px, 7vw, 104px);
}

.section-grid-product {
  grid-template-columns: minmax(260px, 0.56fr) minmax(620px, 1.44fr);
}

.section-copy {
  max-width: 470px;
}

.section-index {
  margin-bottom: 22px;
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.section-copy h2,
.section-heading h2,
.final-cta h2 {
  margin-bottom: 24px;
  font-size: clamp(38px, 4vw, 60px);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.section-copy > p:not(.section-index, .compliance-note),
.section-heading > p:not(.section-index) {
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.78;
}

.inline-feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 34px 0 0;
  padding: 0;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  list-style: none;
}

.inline-feature-list li {
  padding: 0 14px;
  border-left: 1px solid var(--border);
}

.inline-feature-list li:first-child {
  padding-left: 0;
  border-left: 0;
}

.product-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--surface-secondary);
  box-shadow: var(--shadow);
}

.product-frame img {
  width: 100%;
  height: auto;
}

.product-frame-dark {
  border-color: rgba(75, 99, 136, 0.34);
  background: #111722;
}

.security-section {
  padding: 124px 0;
  background: var(--bg-secondary);
}

.section-heading {
  display: grid;
  max-width: 1000px;
  margin-bottom: 64px;
  grid-template-columns: minmax(360px, 0.88fr) minmax(360px, 1.12fr);
  column-gap: 72px;
}

.section-heading .section-index {
  grid-column: 1 / -1;
}

.section-heading h2 {
  margin-bottom: 0;
}

.security-list {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
}

.security-list li {
  min-height: 240px;
  padding: 26px 30px 10px;
  border-top: 1px solid rgba(143, 160, 190, 0.45);
  border-left: 1px solid rgba(143, 160, 190, 0.32);
}

.security-list li:first-child {
  padding-left: 0;
  border-left: 0;
}

.security-number {
  display: block;
  margin-bottom: 52px;
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
}

.security-list h3 {
  margin-bottom: 14px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.security-list p {
  margin-bottom: 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.section-grid-capability {
  grid-template-columns: minmax(300px, 0.68fr) minmax(620px, 1.32fr);
}

.compliance-note {
  margin: 34px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.capability-media {
  background: var(--bg);
}

.final-cta {
  padding: 76px 0;
  background: var(--primary-deep);
  color: #fff;
}

.final-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 52px;
}

.final-cta-inner > div:first-child {
  max-width: 820px;
}

.eyebrow-on-blue {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.final-cta h2 {
  margin-bottom: 16px;
  font-size: clamp(34px, 4vw, 56px);
}

.final-cta p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 17px;
}

.final-cta-actions {
  display: flex;
  min-width: 190px;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.button-light {
  width: 100%;
  background: #fff;
  color: var(--primary-deep);
}

.button-light:hover {
  box-shadow: 0 12px 26px rgba(4, 25, 64, 0.2);
}

.text-link-on-blue {
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.site-footer {
  padding: 68px 0 28px;
  background: #f4f7fc;
}

.site-footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(520px, 1.35fr);
  gap: 100px;
}

.footer-brand {
  max-width: 390px;
}

.footer-brand .brand {
  margin-bottom: 20px;
}

.footer-brand .brand img {
  width: 38px;
  height: 38px;
  border-radius: 11px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 42px;
}

.footer-links > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.footer-links h2 {
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
}

.footer-links a,
.footer-button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  text-align: left;
}

.footer-links a:hover,
.footer-button:hover {
  color: var(--primary-deep);
}

.copyright {
  width: min(calc(100% - 72px), var(--page-width));
  margin: 52px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
}

.invite-dialog {
  width: min(calc(100% - 32px), 520px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 30px 100px rgba(13, 27, 54, 0.24);
  color: var(--text);
}

.invite-dialog::backdrop {
  background: rgba(15, 19, 28, 0.56);
  backdrop-filter: blur(5px);
}

.invite-dialog-content {
  padding: 36px;
}

.invite-dialog h2 {
  margin-bottom: 18px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.invite-dialog p:not(.eyebrow) {
  margin-bottom: 28px;
  color: var(--text-secondary);
}

.js-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.js-enabled [data-reveal][data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

.js-enabled [data-parallax][data-visible="true"] {
  transform: translateY(var(--parallax-offset, 0));
}

@media (max-width: 1120px) {
  .hero-inner {
    width: min(calc(100% - 48px), 1080px);
    grid-template-columns: minmax(340px, 0.82fr) minmax(500px, 1.18fr);
  }

  .section-grid-product,
  .section-grid-capability {
    grid-template-columns: minmax(230px, 0.55fr) minmax(520px, 1.45fr);
  }

  .security-list li {
    padding-right: 20px;
    padding-left: 20px;
  }
}

@media (max-width: 920px) {
  :root {
    --header-height: 68px;
  }

  .site-header-inner,
  .section-grid,
  .section-shell,
  .final-cta-inner,
  .site-footer-inner,
  .copyright {
    width: min(calc(100% - 40px), 760px);
  }

  .js-enabled .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .primary-nav {
    min-width: 0;
    margin-left: 24px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
  }

  .primary-nav::-webkit-scrollbar {
    display: none;
  }

  html:not(.js-enabled) .primary-nav .button-small {
    display: none;
  }

  .js-enabled .primary-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    margin-left: 0;
    display: grid;
    max-height: 0;
    overflow: hidden;
    padding: 0 24px;
    border-bottom: 1px solid transparent;
    background: rgba(254, 254, 255, 0.98);
    opacity: 0;
    pointer-events: none;
    grid-template-columns: 1fr;
    gap: 0;
    transition:
      max-height 220ms ease,
      opacity 180ms ease,
      padding 220ms ease;
  }

  .js-enabled .primary-nav[data-open="true"] {
    max-height: calc(100svh - var(--header-height));
    overflow-y: auto;
    padding-top: 18px;
    padding-bottom: 24px;
    border-bottom-color: var(--border);
    opacity: 1;
    pointer-events: auto;
  }

  .js-enabled .primary-nav a {
    min-height: 48px;
    padding: 13px 0;
    border-bottom: 1px solid var(--border);
  }

  .js-enabled .primary-nav a::after {
    display: none;
  }

  .js-enabled .primary-nav .button-small {
    width: 100%;
    margin-top: 16px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    width: min(calc(100% - 40px), 760px);
    min-height: 0;
    padding: calc(var(--header-height) + 68px) 0 72px;
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero-copy {
    max-width: 690px;
  }

  .hero-brand {
    font-size: clamp(54px, 11vw, 74px);
  }

  .hero h1 {
    max-width: 690px;
    font-size: clamp(36px, 7vw, 52px);
  }

  .hero-visual {
    width: 100%;
    justify-self: stretch;
  }

  .hero-visual img {
    border-radius: 28px;
  }

  .feature-section,
  .security-section,
  .capability-section {
    padding: 92px 0;
  }

  .feature-section-call {
    padding-top: 0;
  }

  .section-grid-product,
  .section-grid-capability {
    grid-template-columns: 1fr;
  }

  .section-copy {
    max-width: 680px;
  }

  .section-grid {
    gap: 46px;
  }

  .section-heading {
    display: block;
    max-width: 680px;
    margin-bottom: 52px;
  }

  .section-heading h2 {
    margin-bottom: 24px;
  }

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

  .security-list li:nth-child(3) {
    border-left: 0;
  }

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

  .final-cta-actions {
    min-width: 220px;
    align-items: flex-start;
  }

  .site-footer-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

}

@media (max-width: 620px) {
  .site-header-inner,
  .section-grid,
  .section-shell,
  .final-cta-inner,
  .site-footer-inner,
  .copyright,
  .hero-inner {
    width: calc(100% - 32px);
  }

  .brand {
    gap: 9px;
    font-size: 18px;
  }

  .brand img {
    width: 38px;
    height: 38px;
    border-radius: 11px;
  }

  .hero-inner {
    padding-top: calc(var(--header-height) + 54px);
  }

  .eyebrow {
    margin-bottom: 18px;
  }

  .hero-brand {
    margin-bottom: 18px;
    font-size: clamp(50px, 14vw, 62px);
  }

  .hero h1 {
    font-size: clamp(34px, 8.8vw, 44px);
    line-height: 1.18;
  }

  .hero-summary {
    font-size: 16px;
  }

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

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

  .hero-visual img,
  .product-frame {
    border-radius: 20px;
  }

  .feature-section,
  .security-section,
  .capability-section {
    padding: 76px 0;
  }

  .section-copy h2,
  .section-heading h2,
  .final-cta h2 {
    font-size: clamp(34px, 10vw, 46px);
    line-height: 1.18;
  }

  .section-copy > p:not(.section-index, .compliance-note),
  .section-heading > p:not(.section-index) {
    font-size: 16px;
  }

  .inline-feature-list {
    row-gap: 8px;
  }

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

  .security-list li,
  .security-list li:first-child,
  .security-list li:nth-child(3) {
    min-height: 0;
    padding: 24px 0 30px;
    border-left: 0;
  }

  .security-number {
    margin-bottom: 28px;
  }

  .final-cta {
    padding: 64px 0;
  }

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

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

  .footer-links > div:last-child {
    grid-column: 1 / -1;
  }

  .invite-dialog-content {
    padding: 28px 22px 22px;
  }

  .invite-dialog h2 {
    font-size: 26px;
  }

  .invite-dialog .button {
    width: 100%;
  }

}

@media (max-width: 380px) {
  .site-header-inner,
  .section-grid,
  .section-shell,
  .final-cta-inner,
  .site-footer-inner,
  .copyright,
  .hero-inner {
    width: calc(100% - 28px);
  }

  .menu-toggle {
    min-width: 50px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .inline-feature-list li {
    padding: 0 9px;
  }

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

  .footer-links > div:last-child {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .site-footer,
  .invite-dialog,
  .skip-link {
    display: none !important;
  }

}