:root {
  --bg: #f3f6ff;
  --bg-soft: #edf2ff;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-strong: rgba(255, 255, 255, 0.95);
  --line: rgba(110, 128, 212, 0.14);
  --line-strong: rgba(110, 128, 212, 0.22);
  --text: #20263d;
  --muted: #68728d;
  --primary: #6a7cff;
  --primary-strong: #4f5fd3;
  --accent: #ff6f7f;
  --mint: #62cda7;
  --shadow: 0 28px 70px rgba(78, 91, 155, 0.16);
  --shadow-soft: 0 16px 40px rgba(90, 102, 166, 0.1);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --radius-sm: 16px;
  --container: min(1200px, calc(100vw - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "HarmonyOS Sans SC", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(106, 124, 255, 0.15), transparent 24%),
    radial-gradient(circle at 82% 10%, rgba(255, 111, 127, 0.12), transparent 22%),
    linear-gradient(180deg, #f9fbff 0%, #f3f6ff 40%, #edf2ff 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background-image:
    linear-gradient(rgba(117, 137, 226, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(117, 137, 226, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
}

body::after {
  background:
    radial-gradient(circle at 15% 24%, rgba(98, 205, 167, 0.07), transparent 18%),
    radial-gradient(circle at 85% 72%, rgba(106, 124, 255, 0.08), transparent 20%);
}

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

button {
  font: inherit;
}

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

.site-shell {
  position: relative;
  overflow: clip;
}

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

.section {
  position: relative;
  padding: 108px 0;
}

.section-alt {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(238, 243, 255, 0.88));
}

.section-head {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-kicker,
.eyebrow {
  margin: 0 0 18px;
  color: var(--primary-strong);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-head h2,
.download-card h2,
.contact-card h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
}

.section-head p,
.download-card p,
.download-meta p,
.feature-card p,
.scenario-card p,
.timeline-step p,
.trust-card p,
.compliance-card p,
.metric-card p,
.stat-card p,
.footer-copy,
.contact-card p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.82;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(0px);
  transition: background-color 180ms ease, backdrop-filter 180ms ease, border-color 180ms ease;
}

.site-header.is-solid {
  background: rgba(247, 250, 255, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(110, 128, 212, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(106, 124, 255, 0.12), rgba(255, 111, 127, 0.08));
  border: 1px solid rgba(106, 124, 255, 0.16);
  box-shadow: 0 16px 36px rgba(106, 124, 255, 0.16);
  overflow: hidden;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-text strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-nav a {
  position: relative;
  color: rgba(32, 38, 61, 0.8);
  font-size: 0.95rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(106, 124, 255, 0), rgba(106, 124, 255, 1), rgba(106, 124, 255, 0));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(106, 124, 255, 0.1);
  border: 1px solid rgba(106, 124, 255, 0.16);
}

.nav-toggle {
  display: none;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 1px solid rgba(106, 124, 255, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  padding-top: 56px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 42px;
  align-items: center;
  min-height: calc(100vh - 88px);
}

.hero-title {
  margin: 0;
  max-width: 760px;
}

.hero-title-brand,
.hero-title-main,
.hero-title-focus {
  display: block;
}

.hero-title-brand {
  margin-bottom: 18px;
  color: var(--primary-strong);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  font-weight: 800;
  letter-spacing: 0.14em;
}

.hero-title-main {
  font-size: clamp(3rem, 6.6vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.hero-title-focus {
  width: fit-content;
  margin-top: 10px;
  padding: 8px 18px 12px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(106, 124, 255, 0.14), rgba(255, 111, 127, 0.12));
  box-shadow: inset 0 0 0 1px rgba(106, 124, 255, 0.12);
  font-size: clamp(3rem, 6.6vw, 5.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.hero-lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-subactions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 16px;
}

.hero-subactions a {
  color: var(--primary-strong);
  font-size: 0.96rem;
  font-weight: 600;
}

.hero-subactions a:hover,
.hero-subactions a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 18px 44px rgba(106, 124, 255, 0.24);
}

.button-secondary {
  border-color: rgba(106, 124, 255, 0.18);
  background: rgba(255, 255, 255, 0.6);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.hero-tags li,
.showcase-pill {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(106, 124, 255, 0.14);
  background: rgba(255, 255, 255, 0.72);
  color: rgba(50, 60, 102, 0.88);
  font-size: 0.92rem;
}

.showcase-pill.neutral {
  border-color: rgba(98, 205, 167, 0.18);
  color: #2c7d65;
}

.hero-note {
  display: inline-flex;
  align-items: center;
  margin-top: 26px;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(98, 205, 167, 0.12);
  border: 1px solid rgba(98, 205, 167, 0.18);
  color: #2f7d67;
  font-size: 0.95rem;
  font-weight: 600;
}

.hero-panel {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at var(--pointer-x, 50%) var(--pointer-y, 50%), rgba(106, 124, 255, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(243, 247, 255, 0.88));
  border: 1px solid rgba(106, 124, 255, 0.16);
  box-shadow: var(--shadow);
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: calc(var(--radius-xl) - 10px);
  border: 1px solid rgba(106, 124, 255, 0.08);
  pointer-events: none;
}

.hero-panel-glow {
  position: absolute;
  inset: -18% auto auto 64%;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(106, 124, 255, 0.16), transparent 70%);
  filter: blur(10px);
}

.showcase-top {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
  z-index: 1;
}

.preview-frame {
  position: relative;
  z-index: 1;
  padding: 14px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(236, 241, 255, 0.9));
  border: 1px solid rgba(106, 124, 255, 0.12);
  box-shadow: var(--shadow-soft);
}

.preview-frame img {
  width: 100%;
  border-radius: 18px;
}

.preview-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.stat-card,
.metric-card,
.feature-card,
.scenario-card,
.timeline-step,
.trust-card,
.contact-card,
.contact-points article,
.compliance-card {
  position: relative;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.stat-card span,
.trust-card span,
.compliance-label {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--primary-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stat-card strong,
.metric-card h3,
.feature-card h3,
.scenario-card h3,
.timeline-step h3,
.trust-card strong,
.contact-points strong,
.compliance-card h3 {
  display: block;
  margin-bottom: 12px;
  font-size: 1.25rem;
  line-height: 1.4;
}

.stat-card.accent {
  background: linear-gradient(180deg, rgba(255, 246, 246, 0.94), rgba(255, 255, 255, 0.9));
  border-color: rgba(255, 111, 127, 0.16);
}

.metrics-section {
  padding-top: 0;
}

.download-card {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 22px;
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(106, 124, 255, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(243, 247, 255, 0.92));
  border: 1px solid rgba(106, 124, 255, 0.16);
  box-shadow: var(--shadow);
}

.download-copy code {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(106, 124, 255, 0.08);
  color: var(--primary-strong);
  font-family: "Cascadia Code", "Consolas", monospace;
  font-size: 0.92em;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
}

.download-tip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(98, 205, 167, 0.12);
  border: 1px solid rgba(98, 205, 167, 0.18);
  color: #2f7d67;
  font-size: 0.92rem;
  font-weight: 600;
}

.download-meta {
  display: grid;
  gap: 16px;
}

.download-meta article {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.download-meta strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.metrics-grid,
.feature-grid,
.scenario-grid,
.timeline,
.trust-grid,
.preview-stats {
  display: grid;
  gap: 18px;
}

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

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

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

.timeline {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card,
.feature-card,
.scenario-card,
.timeline-step,
.trust-card {
  overflow: hidden;
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease;
}

.metric-card::before,
.feature-card::before,
.scenario-card::before,
.timeline-step::before,
.trust-card::before {
  content: "";
  position: absolute;
  inset: auto -18% -42% auto;
  width: 160px;
  height: 160px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(106, 124, 255, 0.1), transparent 68%);
  transition: transform 200ms ease;
}

.metric-card:hover,
.feature-card:hover,
.scenario-card:hover,
.timeline-step:hover,
.trust-card:hover {
  transform: translateY(-6px);
  border-color: rgba(106, 124, 255, 0.24);
  background: rgba(255, 255, 255, 0.9);
}

.metric-card:hover::before,
.feature-card:hover::before,
.scenario-card:hover::before,
.timeline-step:hover::before,
.trust-card:hover::before {
  transform: scale(1.08);
}

.metric-index,
.feature-index,
.timeline-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 15px;
  background: rgba(106, 124, 255, 0.1);
  color: var(--primary-strong);
  font-size: 0.92rem;
  font-weight: 800;
}

.timeline-step span {
  letter-spacing: 0.08em;
}

.compliance-layout {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
  align-items: start;
}

.compliance-card-main {
  background:
    radial-gradient(circle at top right, rgba(106, 124, 255, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(243, 247, 255, 0.92));
  border-color: rgba(106, 124, 255, 0.18);
}

.compliance-list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--muted);
  line-height: 1.86;
}

.compliance-list li + li {
  margin-top: 10px;
}

.trust-grid {
  grid-template-columns: 1fr;
}

.contact-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  padding: 34px;
  background:
    radial-gradient(circle at top right, rgba(106, 124, 255, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(243, 247, 255, 0.92));
  border-color: rgba(106, 124, 255, 0.16);
}

.contact-copy {
  max-width: 620px;
}

.contact-note {
  margin-top: 18px;
}

.contact-points {
  display: grid;
  gap: 18px;
}

.contact-points article {
  background: rgba(255, 255, 255, 0.72);
}

.contact-points a {
  color: var(--primary-strong);
}

.site-footer {
  border-top: 1px solid rgba(106, 124, 255, 0.12);
  background: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 0;
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 700;
}

.icp-link {
  color: var(--primary-strong);
  white-space: nowrap;
}

.has-js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@media (max-width: 1120px) {
  .hero-layout,
  .download-card,
  .compliance-layout,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .preview-stats,
  .metrics-grid,
  .scenario-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-layout {
    min-height: auto;
    padding: 48px 0 16px;
  }
}

@media (max-width: 860px) {
  .site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 14px;
  }

  .has-js .site-nav {
    position: absolute;
    top: calc(100% + 12px);
    right: 20px;
    left: 20px;
    display: grid;
    gap: 8px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(106, 124, 255, 0.14);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .has-js .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .has-js .site-nav a::after {
    display: none;
  }

  .has-js .nav-toggle {
    display: inline-block;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 84px 0;
  }

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

  .brand-text small {
    display: none;
  }

  .hero-title-brand {
    margin-bottom: 14px;
    font-size: clamp(1.05rem, 5vw, 1.35rem);
  }

  .hero-title-main,
  .hero-title-focus {
    font-size: clamp(2.6rem, 12vw, 4.1rem);
  }

  .hero-title-focus {
    width: auto;
    padding: 6px 14px 10px;
    border-radius: 18px;
  }

  .hero-panel,
  .stat-card,
  .metric-card,
  .feature-card,
  .scenario-card,
  .timeline-step,
  .trust-card,
  .contact-card,
  .contact-points article,
  .compliance-card {
    padding: 22px;
  }

  .feature-grid,
  .scenario-grid,
  .timeline,
  .preview-stats,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

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