:root {
  --bg: #f6f3ee;
  --bg-strong: #ecefee;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-muted: #f0f3f4;
  --text: #202833;
  --muted: #5c6674;
  --line: rgba(45, 58, 72, 0.12);
  --primary: #3559d8;
  --primary-soft: rgba(53, 89, 216, 0.12);
  --accent: #1d7f46;
  --accent-soft: rgba(29, 127, 70, 0.12);
  --danger: #c65b6e;
  --danger-soft: rgba(198, 91, 110, 0.12);
  --shadow: 0 24px 80px rgba(38, 49, 66, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Manrope, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(53, 89, 216, 0.08), transparent 28rem),
    radial-gradient(circle at right 10% top 18%, rgba(29, 127, 70, 0.08), transparent 20rem),
    linear-gradient(180deg, #fbfaf7 0%, var(--bg) 48%, #f4f1eb 100%);
}

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

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

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.section {
  padding: clamp(72px, 10vw, 112px) 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(246, 243, 238, 0.78);
  backdrop-filter: blur(18px);
}

.nav-row,
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.brand-logo {
  display: block;
  width: auto;
  height: clamp(42px, 5.2vw, 64px);
  max-width: min(46vw, 270px);
}

.site-header .brand-logo {
  height: clamp(36px, 4.6vw, 54px);
  max-width: min(40vw, 228px);
}

.brand-logo-footer {
  height: clamp(36px, 4vw, 48px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
}

.nav-links a {
  transition: color 160ms ease;
}

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

.button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.98rem;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

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

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, #3250c9 0%, #436eff 100%);
  box-shadow: 0 18px 36px rgba(53, 89, 216, 0.2);
}

.button-primary::after {
  content: "";
  position: absolute;
  inset: -20% auto -20% -32%;
  width: 28%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.42) 50%, transparent 100%);
  transform: skewX(-24deg) translateX(-220%);
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.button-primary:hover::after,
.button-primary:focus-visible::after {
  transform: skewX(-24deg) translateX(520%);
}

.button-secondary {
  color: var(--muted);
  border-color: rgba(45, 58, 72, 0.12);
  background: rgba(255, 255, 255, 0.56);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--text);
  border-color: rgba(53, 89, 216, 0.18);
  background: rgba(255, 255, 255, 0.88);
}

.button-compact {
  min-height: 42px;
  padding: 0 18px;
  font-size: 0.88rem;
}

.hero {
  padding-top: clamp(48px, 8vw, 96px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

.hero-sequence > * {
  opacity: 0;
  transform: translateY(26px);
  animation: hero-rise 720ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-sequence > *:nth-child(1) {
  animation-delay: 60ms;
}

.hero-sequence > *:nth-child(2) {
  animation-delay: 140ms;
}

.hero-sequence > *:nth-child(3) {
  animation-delay: 240ms;
}

.hero-sequence > *:nth-child(4) {
  animation-delay: 320ms;
}

.hero-sequence > *:nth-child(5) {
  animation-delay: 400ms;
}

.hero-sequence > *:nth-child(6) {
  animation-delay: 480ms;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 36px;
  height: 1px;
  background: rgba(53, 89, 216, 0.32);
}

.hero-copy h1 {
  font-size: clamp(2.65rem, 6.4vw, 4.75rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.hero-title-line {
  display: block;
  white-space: nowrap;
}

.hero-copy h1 span {
  color: var(--text);
}

.hero-highlight {
  position: relative;
  display: inline-block;
  margin-top: 18px;
  font-size: clamp(1.7rem, 3.4vw, 2.45rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--primary);
  font-weight: 800;
}

.hero-highlight::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(53, 89, 216, 0.24) 0%, rgba(53, 89, 216, 0.06) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  animation: accent-grow 800ms 620ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-description,
.section-description,
.feature-card p,
.scenario-item p,
.beta-copy p,
.status-solution p,
.site-footer p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-description {
  max-width: 38rem;
  margin-top: 20px;
  font-size: 1.06rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-chips span {
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid rgba(45, 58, 72, 0.08);
  background: rgba(255, 255, 255, 0.62);
  color: var(--muted);
  font-size: 0.92rem;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background-color 220ms ease;
}

.hero-chips span:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 89, 216, 0.18);
  background: rgba(255, 255, 255, 0.88);
}

.status-panel,
.feature-card,
.beta-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(242, 245, 247, 0.84) 100%);
  box-shadow: var(--shadow);
}

.status-panel {
  padding: 34px;
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  animation: hero-rise 820ms 280ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.status-panel::before,
.beta-card::before {
  content: "";
  position: absolute;
  inset: auto -48px -48px auto;
  width: 160px;
  height: 160px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(53, 89, 216, 0.12), transparent 72%);
  animation: float-soft 8s ease-in-out infinite;
}

.panel-title {
  margin-bottom: 20px;
  font-size: 0.96rem;
  color: var(--muted);
  font-weight: 700;
}

.status-list {
  display: grid;
  gap: 14px;
}

.status-item,
.status-solution {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(45, 58, 72, 0.06);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background-color 220ms ease;
}

.status-item:hover,
.status-solution:hover {
  transform: translateX(4px);
  border-color: rgba(53, 89, 216, 0.12);
  background: rgba(255, 255, 255, 0.92);
}

.status-item p,
.status-solution strong {
  font-size: 1rem;
}

.status-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 999px;
  font-weight: 800;
}

.status-icon-bad {
  color: var(--danger);
  background: var(--danger-soft);
}

.status-icon-good {
  color: var(--accent);
  background: var(--accent-soft);
}

.status-solution {
  margin-top: 18px;
  align-items: flex-start;
  border-left: 4px solid rgba(29, 127, 70, 0.72);
}

.status-solution strong {
  display: block;
  margin-bottom: 4px;
}

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

.section-heading h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: -0.05em;
}

.section-heading-offset {
  padding-left: clamp(0px, 8vw, 120px);
}

.section-heading-center {
  text-align: center;
}

.section-description {
  max-width: 42rem;
  margin: 14px auto 0;
  font-size: 1.03rem;
}

.feature-grid,
.beta-grid,
.scenario-grid {
  display: grid;
  gap: 24px;
}

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

.feature-card {
  min-height: 280px;
  padding: 34px;
  transition:
    transform 260ms ease,
    box-shadow 260ms ease,
    border-color 260ms ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(53, 89, 216, 0.14);
  box-shadow: 0 26px 60px rgba(38, 49, 66, 0.12);
}

.feature-index {
  position: absolute;
  right: -12px;
  bottom: -24px;
  color: rgba(32, 40, 51, 0.05);
  font-size: clamp(6rem, 9vw, 8.5rem);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 20px;
  border-radius: 18px;
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 800;
  font-size: 1.1rem;
  transition: transform 240ms ease, background-color 240ms ease;
}

.feature-card:hover .feature-icon {
  transform: translateY(-2px) rotate(-6deg) scale(1.04);
  background: rgba(53, 89, 216, 0.18);
}

.feature-card h3 {
  max-width: 14ch;
  margin-bottom: 14px;
  font-size: 1.28rem;
  line-height: 1.35;
}

.section-muted {
  background:
    linear-gradient(180deg, rgba(229, 234, 237, 0.32) 0%, rgba(239, 243, 245, 0.86) 100%);
}

.scenario-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  row-gap: 36px;
  column-gap: 46px;
}

.scenario-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: transform 220ms ease;
}

.scenario-item:hover {
  transform: translateX(6px);
}

.scenario-number {
  display: grid;
  place-items: center;
  width: 44px;
  height: 32px;
  border-radius: 999px;
  color: #ffffff;
  background: var(--text);
  font-size: 0.84rem;
  font-weight: 800;
  flex: 0 0 44px;
}

.scenario-item h3 {
  margin-bottom: 12px;
  font-size: 1.32rem;
}

.pointing {
  margin-right: 8px;
  color: #d79a00;
  font-weight: 800;
}

.beta-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.beta-card {
  height: 100%;
  padding: 28px;
  transition:
    transform 260ms ease,
    box-shadow 260ms ease,
    border-color 260ms ease;
}

.beta-card:hover {
  transform: translateY(-8px);
  border-color: rgba(53, 89, 216, 0.14);
  box-shadow: 0 26px 60px rgba(38, 49, 66, 0.12);
}

.beta-preview {
  display: grid;
  place-items: center;
  min-height: clamp(260px, 34vw, 360px);
  padding: 18px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: inset 0 0 0 1px rgba(45, 58, 72, 0.05);
}

.beta-preview-image {
  padding: 20px;
}

.beta-copy {
  margin-top: 22px;
  text-align: center;
}

.beta-copy h3 {
  margin-bottom: 8px;
  font-size: 1.24rem;
}

.beta-image {
  width: min(100%, 300px);
  height: auto;
  border-radius: 26px;
  background: var(--surface-strong);
  border: 1px solid rgba(45, 58, 72, 0.08);
  box-shadow: 0 16px 40px rgba(32, 40, 51, 0.09);
  transition: transform 320ms ease, box-shadow 320ms ease;
}

.beta-card:hover .beta-image {
  transform: translateY(-4px) scale(1.015);
  box-shadow: 0 20px 44px rgba(32, 40, 51, 0.14);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 760ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 760ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(26px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes accent-grow {
  from {
    transform: scaleX(0);
  }

  to {
    transform: scaleX(1);
  }
}

@keyframes float-soft {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(-10px, -12px, 0) scale(1.04);
  }
}

.site-footer {
  padding: 24px 0 52px;
}

.site-footer p {
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .feature-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .section-heading-offset {
    padding-left: 0;
  }

  .feature-card {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .site-header {
    padding: 14px 0;
  }

  .nav-row,
  .footer-row {
    gap: 16px;
  }

  .button-compact {
    display: none;
  }

  .status-panel,
  .feature-card,
  .beta-card {
    border-radius: 26px;
  }

  .status-panel,
  .feature-card,
  .beta-card,
  .beta-preview {
    padding-left: 20px;
    padding-right: 20px;
  }

  .status-panel {
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .feature-card {
    padding-top: 28px;
    padding-bottom: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .beta-preview {
    min-height: 250px;
  }

  .site-footer p {
    text-align: right;
  }
}

@media (max-width: 640px) {
  .beta-grid {
    grid-template-columns: 1fr;
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}