:root {
  --bg: #08101e;
  --bg-deep: #0b1424;
  --panel: #0f1b31;
  --panel-soft: rgba(15, 27, 49, 0.82);
  --line: rgba(150, 173, 214, 0.16);
  --line-strong: rgba(150, 173, 214, 0.28);
  --text: #f3f7ff;
  --muted: #9eb1cf;
  --primary: #237bff;
  --primary-strong: #1365de;
  --accent: #7bb7ff;
  --positive: #22c983;
  --shadow: 0 28px 80px rgba(2, 8, 18, 0.38);
  --radius-xl: 34px;
  --radius-lg: 28px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --container: min(1240px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    "Segoe UI",
    sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, rgba(45, 104, 204, 0.14), transparent 24%),
    linear-gradient(180deg, #07111f 0%, #091425 42%, #08111f 100%);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

.page-shell::before {
  content: "";
  position: absolute;
  top: 220px;
  right: -180px;
  width: 520px;
  height: 520px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(50, 115, 220, 0.28), transparent 64%);
  pointer-events: none;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(6, 13, 24, 0.84);
  border-bottom: 1px solid rgba(123, 151, 198, 0.12);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 86px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family:
    "Avenir Next",
    "SF Pro Display",
    "Segoe UI",
    sans-serif;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a,
.footer-links a {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--text);
}

.header-actions,
.hero-actions,
.inline-actions,
.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease;
}

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

.button-large {
  min-height: 54px;
  padding: 0 28px;
}

.button-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #4a98ff 100%);
  color: white;
  box-shadow: 0 18px 38px rgba(21, 92, 195, 0.32);
}

.button-primary:hover {
  background: linear-gradient(135deg, var(--primary-strong) 0%, #3d8bf2 100%);
}

.button-ghost,
.button-secondary {
  background: rgba(12, 20, 35, 0.6);
  border-color: rgba(140, 166, 207, 0.22);
  color: var(--text);
}

.button-ghost:hover,
.button-secondary:hover {
  background: rgba(16, 28, 48, 0.9);
  border-color: rgba(140, 166, 207, 0.34);
}

.button-dark {
  background: #0c1830;
  color: white;
}

.button-line-dark {
  background: transparent;
  border-color: rgba(96, 124, 171, 0.24);
  color: #dbe6fb;
}

.hero-section {
  padding: 54px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 44px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2,
.promo-copy h2,
.split-copy h2,
.cta-panel h2 {
  margin: 0;
  font-family:
    "Avenir Next",
    "SF Pro Display",
    "Segoe UI",
    sans-serif;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  max-width: 8.4ch;
  font-size: clamp(3rem, 4.5vw, 4.85rem);
}

.hero-text,
.section-heading p,
.feature-card p,
.feature-highlight-copy p,
.promo-copy p,
.split-copy p,
.ecosystem-card p,
.cta-panel p,
.footer-brand p,
.footer-note p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 600px;
  margin: 24px 0 0;
  font-size: 1.02rem;
}

.hero-notes {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.hero-notes span,
.terminal-points span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(136, 162, 202, 0.2);
  border-radius: 999px;
  background: rgba(10, 17, 31, 0.5);
  color: #dbe7fa;
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
  min-height: 560px;
}

.hero-stage {
  position: absolute;
  inset: 20px 0 40px 28px;
  border: 1px solid var(--line);
  border-radius: 36px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(16, 26, 44, 0.96), rgba(8, 14, 25, 0.98));
  box-shadow: var(--shadow);
}

.hero-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-tag {
  position: absolute;
  min-width: 220px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(14, 25, 46, 0.92);
  box-shadow: var(--shadow);
}

.hero-tag span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-tag strong {
  font-size: 1rem;
  line-height: 1.55;
}

.hero-tag-top {
  top: 44px;
  right: -8px;
}

.hero-tag-bottom {
  left: 0;
  bottom: 0;
}

.market-strip {
  padding: 24px 0 0;
}

.market-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.market-card,
.feature-card,
.feature-highlight,
.promo-banner,
.split-visual,
.ecosystem-card,
.cta-panel {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.market-card {
  padding: 22px 24px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(16, 27, 47, 0.92) 0%, rgba(9, 17, 31, 0.96) 100%);
}

.market-card span {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.86rem;
}

.market-card strong {
  display: block;
  font-family:
    "Avenir Next",
    "SF Pro Display",
    "Segoe UI",
    sans-serif;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.market-card em {
  display: inline-block;
  margin-top: 14px;
  color: var(--positive);
  font-style: normal;
  font-weight: 700;
}

.section {
  padding: 94px 0 0;
}

.dark-section {
  position: relative;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading.narrow {
  max-width: 700px;
}

.section-heading h2,
.promo-copy h2,
.split-copy h2,
.cta-panel h2 {
  font-size: clamp(2rem, 3.6vw, 3.15rem);
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 20px;
}

.feature-list {
  display: grid;
  gap: 18px;
}

.feature-card,
.feature-highlight,
.cta-panel {
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(17, 30, 52, 0.9) 0%, rgba(10, 18, 33, 0.96) 100%);
}

.feature-card {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 18px;
  align-items: center;
  padding: 20px;
}

.feature-card img {
  width: 108px;
  height: 108px;
  border-radius: 18px;
  object-fit: cover;
}

.feature-card h3,
.feature-highlight h3,
.ecosystem-card h3 {
  margin: 0 0 10px;
  font-family:
    "Avenir Next",
    "SF Pro Display",
    "Segoe UI",
    sans-serif;
  font-size: 1.28rem;
  line-height: 1.25;
}

.feature-card p,
.feature-highlight-copy p,
.ecosystem-card p {
  margin: 0 0 16px;
}

.feature-card a,
.feature-highlight a,
.ecosystem-card a {
  color: var(--accent);
  font-weight: 700;
}

.feature-highlight {
  display: grid;
  overflow: hidden;
}

.feature-highlight-media {
  min-height: 280px;
}

.feature-highlight-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-highlight-copy {
  padding: 28px 30px 30px;
}

.banner-section {
  padding-top: 84px;
}

.promo-banner {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 22px;
  align-items: center;
  padding: 26px;
  border-radius: 32px;
  background:
    linear-gradient(120deg, rgba(15, 33, 58, 0.96) 0%, rgba(12, 22, 40, 0.92) 46%, rgba(15, 48, 44, 0.86) 100%);
}

.promo-copy {
  padding: 6px 6px 6px 10px;
}

.promo-visual {
  border-radius: 24px;
  overflow: hidden;
}

.promo-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.light-section {
  padding: 92px 0 0;
  color: #dbe6fb;
  background: linear-gradient(180deg, #09111f 0%, #08101e 100%);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  align-items: center;
  gap: 34px;
}

.split-layout.reverse {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
}

.split-visual {
  border-radius: 32px;
  overflow: hidden;
}

.card-light {
  padding: 18px;
  background: linear-gradient(180deg, rgba(14, 25, 46, 0.98), rgba(8, 15, 28, 0.98));
  border: 1px solid rgba(118, 145, 194, 0.14);
  box-shadow: 0 28px 56px rgba(4, 10, 20, 0.34);
}

.card-dark {
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(14, 25, 46, 0.94), rgba(7, 13, 24, 0.98));
}

.split-copy {
  padding: 12px 0;
}

.dark-text .section-kicker {
  color: #4e8ef7;
}

.dark-text p,
.dark-text li {
  color: rgba(210, 223, 247, 0.76);
}

.dark-text h2 {
  color: #edf4ff;
}

.bullet-list {
  margin: 22px 0 30px;
  padding: 0;
  list-style: none;
}

.bullet-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.85;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #4e8ef7;
}

.terminal-section {
  padding-top: 86px;
}

.terminal-points {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 26px 0 30px;
}

.ecosystem-section {
  padding: 96px 0 0;
  background: linear-gradient(180deg, #09111f 0%, #08101e 100%);
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.ecosystem-card {
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(180deg, #141d31 0%, #10192b 100%);
  border: 1px solid rgba(118, 145, 194, 0.14);
  box-shadow: 0 22px 48px rgba(4, 10, 20, 0.28);
}

.ecosystem-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.ecosystem-card div {
  padding: 24px 24px 26px;
}

.ecosystem-card h3 {
  color: #edf4ff;
}

.ecosystem-card p,
.ecosystem-section .dark-text h2 {
  color: rgba(210, 223, 247, 0.8);
}

.ecosystem-section .section-kicker {
  color: #4e8ef7;
}

.cta-section {
  padding: 96px 0;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 42px;
}

.cta-panel > div:first-child {
  max-width: 680px;
}

.site-footer {
  padding: 0 0 42px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
  gap: 30px;
  padding-top: 34px;
  border-top: 1px solid rgba(138, 163, 202, 0.14);
}

.footer-company-info {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.footer-company-info p,
.footer-note p {
  margin: 0;
}

.footer-company-info span:first-child {
  display: inline-block;
  min-width: 72px;
  color: rgba(161, 182, 220, 0.78);
}

.footer-company-info a {
  color: #dfeaff;
}

.footer-links {
  display: grid;
  gap: 12px;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(138, 163, 202, 0.22);
  border-radius: 14px;
  background: rgba(12, 20, 35, 0.86);
  color: white;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
}

.nav-toggle span + span {
  margin-top: 6px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-grid,
  .feature-layout,
  .promo-banner,
  .split-layout,
  .split-layout.reverse,
  .footer-grid,
  .cta-panel {
    grid-template-columns: 1fr;
  }

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

  .hero-copy h1 {
    max-width: none;
  }

  .hero-visual {
    min-height: 500px;
  }

  .cta-panel {
    justify-content: flex-start;
  }
}

@media (max-width: 860px) {
  .site-header {
    position: static;
  }

  .header-inner {
    flex-wrap: wrap;
    min-height: auto;
    padding: 18px 0;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
  }

  .site-nav,
  .header-actions {
    width: 100%;
    display: none;
  }

  .site-nav.is-open,
  .header-actions.is-open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    gap: 16px;
    padding-top: 10px;
  }

  .header-actions {
    padding-top: 8px;
  }

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

  .hero-section {
    padding-top: 34px;
  }

  .hero-visual {
    min-height: 420px;
  }

  .hero-stage {
    inset: 14px 0 46px;
  }

  .hero-tag-top {
    top: 4px;
    right: 10px;
  }

  .hero-tag-bottom {
    left: 10px;
    bottom: 0;
  }

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

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 1240px);
  }

  .hero-copy h1 {
    font-size: 2.65rem;
  }

  .section,
  .light-section,
  .ecosystem-section {
    padding-top: 72px;
  }

  .cta-section {
    padding: 78px 0;
  }

  .market-grid,
  .ecosystem-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-visual {
    min-height: 360px;
  }

  .hero-tag {
    min-width: 0;
    max-width: calc(100% - 24px);
    padding: 16px 18px;
  }

  .promo-banner,
  .feature-card,
  .feature-highlight-copy,
  .card-light,
  .cta-panel {
    padding-left: 18px;
    padding-right: 18px;
  }
}

.site-header {
  background: rgba(5, 11, 22, 0.86);
}

.header-inner {
  position: relative;
  min-height: 92px;
}

.header-actions.header-utility {
  margin-left: auto;
  gap: 12px;
}

.button-compact {
  min-height: 50px;
  padding: 0 24px;
}

.search-pill,
.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(186, 204, 235, 0.16);
  background: rgba(8, 17, 31, 0.72);
  color: #edf4ff;
}

.search-pill {
  min-width: 150px;
  height: 50px;
  padding: 0 14px 0 16px;
  border-radius: 999px;
  gap: 12px;
}

.search-lens {
  position: relative;
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.search-lens::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform: rotate(45deg);
}

.search-shortcut {
  margin-left: auto;
  min-width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #a9bad7;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.icon-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  padding: 0;
}

.icon-download {
  position: relative;
  width: 14px;
  height: 16px;
}

.icon-download::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 8px;
  background: currentColor;
  transform: translateX(-50%);
}

.icon-download::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 6px;
  width: 8px;
  height: 8px;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateX(-50%) rotate(-45deg);
}

.nav-toggle {
  display: inline-flex;
}

.nav-toggle.icon-circle {
  position: relative;
}

.nav-toggle.icon-circle span {
  width: 16px;
  height: 2px;
}

.site-nav {
  position: absolute;
  top: calc(100% - 6px);
  right: 0;
  display: none;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  min-width: 220px;
  padding: 10px;
  border: 1px solid rgba(154, 177, 216, 0.18);
  border-radius: 20px;
  background: rgba(9, 16, 30, 0.96);
  box-shadow: 0 20px 50px rgba(2, 9, 20, 0.34);
}

.site-nav a {
  padding: 12px 14px;
  border-radius: 12px;
}

.site-nav a:hover {
  background: rgba(255, 255, 255, 0.04);
}

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

.hero-reference {
  position: relative;
  min-height: calc(100vh - 92px);
  padding: 54px 0 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 34%, rgba(108, 145, 194, 0.22), transparent 26%),
    linear-gradient(180deg, #050a17 0%, #102746 36%, #4e6787 72%, #bec8d5 100%);
}

.hero-reference::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 110px;
  width: min(92vw, 1380px);
  height: 420px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0) 70%);
  opacity: 0.8;
  pointer-events: none;
}

.hero-reference::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 220px;
  background: linear-gradient(180deg, rgba(11, 20, 36, 0) 0%, rgba(8, 16, 30, 0.68) 100%);
  pointer-events: none;
}

.hero-reference-inner {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 146px);
}

.hero-copy-centered {
  max-width: 660px;
  margin: 0 auto;
  text-align: center;
}

.hero-copy-centered h1 {
  max-width: none;
  font-size: clamp(2.7rem, 4.4vw, 4.45rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  text-wrap: balance;
  text-shadow: 0 6px 18px rgba(0, 0, 0, 0.34);
}

.hero-text-centered {
  max-width: 560px;
  margin: 20px auto 0;
  font-size: 0.96rem;
  color: rgba(237, 244, 255, 0.78);
}

.hero-actions-centered {
  justify-content: center;
  margin-top: 26px;
}

.button-hero {
  min-height: 58px;
  min-width: 280px;
  font-size: 1.02rem;
  box-shadow: 0 26px 44px rgba(20, 100, 206, 0.28);
}

.hero-reference + .section.dark-section {
  margin-top: 0;
  padding-top: 94px;
  background: #08101e;
}

@media (max-width: 1080px) {
  .hero-reference {
    min-height: auto;
    padding: 42px 0 78px;
  }

  .button-hero {
    min-width: 300px;
  }

  .hero-reference-inner {
    min-height: auto;
  }

}

@media (max-width: 860px) {
  .header-inner {
    gap: 14px;
  }

  .header-actions.header-utility {
    width: auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .search-pill {
    min-width: 108px;
  }

  .button-compact {
    min-height: 46px;
    padding: 0 18px;
  }

  .site-nav {
    top: calc(100% + 6px);
    width: min(240px, calc(100vw - 32px));
  }

  .hero-reference {
    padding-top: 42px;
    padding-bottom: 78px;
  }

  .hero-copy-centered h1 {
    font-size: 2.75rem;
  }

  .button-hero {
    min-width: 0;
    width: 100%;
    max-width: 340px;
  }

  .hero-reference + .section.dark-section {
    padding-top: 72px;
  }
}

@media (max-width: 640px) {
  .brand span {
    font-size: 0.96rem;
  }

  .search-pill {
    display: none;
  }

  .header-actions.header-utility {
    gap: 8px;
  }

  .button-compact {
    padding: 0 16px;
    font-size: 0.94rem;
  }

  .icon-circle {
    width: 44px;
    height: 44px;
  }

  .hero-copy-centered h1 {
    font-size: 2.15rem;
  }

  .hero-text-centered {
    font-size: 0.92rem;
  }

}

/* Refined desktop header and hero to match the reference composition */
.site-header {
  background: rgba(6, 13, 24, 0.94);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
  gap: 24px;
}

.header-start {
  display: flex;
  align-items: center;
  gap: 22px;
  min-width: 0;
  flex-wrap: nowrap;
}

.brand {
  gap: 12px;
  font-size: 1.02rem;
  font-weight: 700;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.header-doc-link {
  color: rgba(219, 231, 251, 0.82);
  font-size: 0.94rem;
  font-weight: 600;
  white-space: nowrap;
}

.header-doc-link:hover {
  color: #ffffff;
}

.lang-switch-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-switch {
  min-height: 32px;
  padding: 0 34px 0 12px;
  border: 1px solid rgba(186, 204, 235, 0.16);
  border-radius: 14px;
  background: rgba(8, 17, 31, 0.72);
  color: #edf4ff;
  font-size: 0.92rem;
  font-weight: 600;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.lang-switch-wrap::after {
  content: "";
  position: absolute;
  right: 13px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid rgba(219, 231, 251, 0.88);
  border-bottom: 1.5px solid rgba(219, 231, 251, 0.88);
  transform: rotate(45deg);
  pointer-events: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-nav {
  position: static;
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  gap: 34px;
  min-width: 0;
  width: auto;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.site-nav a {
  padding: 0;
  border-radius: 0;
  color: rgba(230, 238, 250, 0.88);
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover {
  background: transparent;
  color: white;
}

.header-actions.header-utility {
  margin-left: auto;
  gap: 10px;
  flex-wrap: nowrap;
}

.search-pill {
  min-width: 122px;
  height: 34px;
  padding: 0 10px 0 12px;
}

.search-shortcut {
  min-width: 24px;
  height: 24px;
  border-radius: 6px;
  font-size: 0.75rem;
}

.button-compact {
  min-height: 32px;
  padding: 0 18px;
  border-radius: 14px;
  font-size: 0.92rem;
}

.icon-circle {
  width: 32px;
  height: 32px;
}

.icon-globe {
  position: relative;
  width: 14px;
  height: 14px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}

.icon-globe::before,
.icon-globe::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.icon-globe::before {
  width: 8px;
  height: 100%;
  border-left: 1px solid currentColor;
  border-right: 1px solid currentColor;
  border-radius: 50%;
}

.icon-globe::after {
  width: 100%;
  height: 6px;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.nav-toggle {
  display: none;
}

.hero-reference {
  position: relative;
  z-index: 3;
  height: clamp(780px, calc(100vh - 76px), 930px);
  min-height: 780px;
  padding: 0;
  overflow: visible;
  background:
    radial-gradient(circle at 50% 44%, rgba(104, 136, 184, 0.12), transparent 30%),
    linear-gradient(180deg, #09111e 0%, #15253d 44%, #3a516e 70%, #1b2738 86%, #0a1220 100%);
}

.hero-reference::before {
  z-index: 0;
  bottom: 42px;
  width: min(1320px, 84vw);
  height: 220px;
  background: radial-gradient(circle, rgba(188, 208, 235, 0.08), rgba(188, 208, 235, 0) 72%);
}

.hero-reference::after {
  z-index: 1;
  bottom: -180px;
  height: 520px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(136, 160, 196, 0.18) 0%, rgba(136, 160, 196, 0.1) 20%, rgba(48, 66, 94, 0.22) 42%, rgba(10, 18, 32, 0.62) 70%, rgba(8, 16, 30, 0.96) 100%),
    linear-gradient(180deg, rgba(10, 18, 32, 0) 0%, rgba(33, 51, 77, 0.2) 18%, rgba(22, 35, 55, 0.54) 42%, rgba(10, 18, 32, 0.9) 76%, #08101e 100%);
}

.hero-reference-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  min-height: 0;
  overflow: visible;
}

.hero-copy-centered {
  position: relative;
  z-index: 2;
  max-width: 690px;
  padding-top: clamp(104px, 14vh, 148px);
}

.hero-copy-centered h1 {
  width: min(690px, 100%);
  margin: 0 auto;
  font-size: clamp(3.2rem, 4.35vw, 4.45rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.06em;
  text-shadow: none;
}

.hero-text-centered {
  width: min(760px, 100%);
  max-width: 760px;
  margin: 26px auto 0;
  font-size: clamp(0.98rem, 1.4vw, 1.32rem);
  font-weight: 600;
  line-height: 1.2;
  color: rgba(214, 223, 239, 0.72);
}

.hero-actions-centered {
  margin-top: 24px;
}

.button-hero {
  min-width: 214px;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 12px;
  font-size: 0.96rem;
  box-shadow: 0 14px 28px rgba(25, 108, 214, 0.22);
}

.hero-device-scene {
  position: absolute;
  left: 50%;
  bottom: -1000px;
  width: 100%;
  margin: 0;
  transform: translateX(-50%);
  pointer-events: none;
  display: flex;
  justify-content: center;
  z-index: 4;
}

.hero-device-image {
  display: block;
  width: min(1936px, calc(158.55% + 30px));
  max-width: none;
  height: auto;
  transform: none;
  filter: none;
  margin: 0 auto;
  -webkit-mask-image: linear-gradient(
    180deg,
    #000 0%,
    #000 70%,
    rgba(0, 0, 0, 0.92) 80%,
    rgba(0, 0, 0, 0.55) 90%,
    rgba(0, 0, 0, 0.16) 97%,
    transparent 100%
  );
  mask-image: linear-gradient(
    180deg,
    #000 0%,
    #000 70%,
    rgba(0, 0, 0, 0.92) 80%,
    rgba(0, 0, 0, 0.55) 90%,
    rgba(0, 0, 0, 0.16) 97%,
    transparent 100%
  );
}

.hero-reference + .section.dark-section {
  z-index: 1;
  padding-top: 800px;
  background:
    linear-gradient(180deg, #0b1321 0%, #08101e 22%, #08101e 100%);
}

.hero-reference + .section.dark-section::before {
  content: "";
  position: absolute;
  top: -360px;
  left: 0;
  right: 0;
  height: 560px;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(148, 173, 210, 0.2) 0%, rgba(148, 173, 210, 0.1) 14%, rgba(76, 99, 133, 0.16) 28%, rgba(28, 40, 61, 0.34) 48%, rgba(10, 18, 32, 0.72) 72%, #08101e 100%),
    linear-gradient(180deg, rgba(54, 77, 108, 0.16) 0%, rgba(24, 38, 58, 0.28) 18%, rgba(13, 22, 37, 0.62) 48%, rgba(8, 16, 30, 0.9) 76%, #08101e 100%);
}

.hero-reference + .section.dark-section > .container {
  position: relative;
  z-index: 3;
}

@media (max-width: 1080px) {
  .header-inner {
    min-height: auto;
    flex-wrap: wrap;
    padding: 16px 0;
    gap: 14px;
  }

  .header-start {
    width: 100%;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 18px;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 10px;
  }

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

  .header-actions.header-utility {
    display: flex;
    width: auto;
    margin-left: auto;
  }

  .header-actions.header-utility > a[aria-label="语言"] {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .hero-reference {
    height: auto;
    min-height: 0;
    padding: 46px 0 70px;
  }

  .hero-reference-inner {
    min-height: auto;
    height: auto;
  }

  .hero-copy-centered {
    padding-top: 0;
    max-width: 620px;
  }

  .hero-copy-centered h1 {
    font-size: clamp(2.65rem, 6.2vw, 3.7rem);
  }

  .hero-text-centered {
    font-size: clamp(0.98rem, 2.3vw, 1.16rem);
  }

  .hero-device-scene {
    position: relative;
    left: auto;
    bottom: auto;
    width: min(900px, calc(100% + 24px));
    margin: 34px auto 0;
    transform: none;
  }

  .hero-device-image {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .header-start {
    align-items: center;
  }

  .search-pill {
    display: none;
  }

  .header-actions.header-utility {
    gap: 8px;
  }

  .button-compact {
    padding: 0 14px;
    font-size: 0.88rem;
  }

  .hero-reference {
    padding: 34px 0 56px;
  }

  .hero-copy-centered h1 {
    font-size: 2.35rem;
    line-height: 1.02;
  }

  .hero-text-centered {
    margin-top: 18px;
    font-size: 0.98rem;
    line-height: 1.35;
  }

  .button-hero {
    min-width: 188px;
    min-height: 52px;
    border-radius: 10px;
  }

  .hero-device-scene {
    width: calc(100% + 18px);
    margin-top: 28px;
    transform: none;
  }
}