:root {
  --bg: #f8f4ee;
  --bg-strong: #fffdf9;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(19, 35, 58, 0.12);
  --line-strong: rgba(19, 35, 58, 0.2);
  --text: #14233a;
  --muted: #617188;
  --muted-strong: #465770;
  --accent: #ff6a60;
  --accent-soft: #f7a06f;
  --accent-cool: #4f89ff;
  --accent-mint: #48b79a;
  --shadow-sm: 0 18px 36px rgba(26, 40, 62, 0.08);
  --shadow-md: 0 28px 64px rgba(26, 40, 62, 0.12);
  --shadow-lg: 0 38px 90px rgba(26, 40, 62, 0.16);
  --radius-xl: 40px;
  --radius-lg: 28px;
  --radius-md: 20px;
  --max: 1200px;
  --sans: "Sora", system-ui, sans-serif;
  --display: "Fraunces", Georgia, serif;
  --mono: "IBM Plex Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  background:
    radial-gradient(circle at 14% 12%, rgba(255, 138, 122, 0.22), transparent 26%),
    radial-gradient(circle at 86% 12%, rgba(94, 143, 255, 0.16), transparent 24%),
    radial-gradient(circle at 80% 76%, rgba(72, 183, 154, 0.14), transparent 26%),
    radial-gradient(circle at 18% 82%, rgba(247, 160, 111, 0.16), transparent 24%),
    linear-gradient(180deg, #fffdfa 0%, #f8f4ee 42%, #f5f7fb 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(70, 87, 112, 0.08) 1px, transparent 0);
  background-size: 24px 24px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 90%);
}

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

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

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

:focus-visible {
  outline: 3px solid rgba(79, 137, 255, 0.38);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -56px;
  z-index: 60;
  padding: 12px 16px;
  border-radius: 14px;
  background: #12213a;
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 18px 0 0;
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-sm);
}

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

.brand-mark {
  width: 52px;
  height: 52px;
  overflow: hidden;
  border-radius: 18px;
  box-shadow: 0 18px 34px rgba(255, 106, 96, 0.22);
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.brand-copy span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 14px 20px;
  color: var(--muted-strong);
  font-size: 0.93rem;
  font-weight: 600;
}

.topnav a {
  position: relative;
  padding: 4px 0;
}

.topnav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-cool));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
}

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

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, #12213a 0%, #223a63 100%);
  box-shadow: 0 20px 40px rgba(20, 35, 58, 0.18);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.64);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.button.ghost {
  color: var(--text);
  background: transparent;
  border-color: var(--line);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.actions.center {
  justify-content: center;
}

.section {
  padding: 84px 0;
  scroll-margin-top: 120px;
}

.section.tight {
  padding-top: 56px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 106, 96, 0.16);
  background: rgba(255, 255, 255, 0.66);
  box-shadow: 0 10px 20px rgba(255, 106, 96, 0.08);
  color: #c55259;
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 0 6px rgba(255, 106, 96, 0.12);
}

.hero {
  padding: 26px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(320px, 0.92fr);
  gap: 48px;
  align-items: center;
}

.hero-copy h1,
.section-head h2,
.story-card h3,
.highlight-panel h2,
.cta-shell h2,
.page-hero h1,
.prose h2,
.support-card h2 {
  font-family: var(--display);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.hero-copy h1 {
  max-width: 12ch;
  margin: 18px 0;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
}

.hero-copy p,
.section-head p,
.story-card p,
.highlight-panel p,
.prose p,
.support-card p,
.empty-state p {
  color: var(--muted-strong);
}

.hero-copy p {
  max-width: 62ch;
  font-size: 1.08rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.pill-row li {
  padding: 10px 14px;
  border: 1px solid rgba(20, 35, 58, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--muted-strong);
  font-size: 0.88rem;
  font-weight: 600;
}

.hero-stage {
  position: relative;
  min-height: 680px;
  isolation: isolate;
  perspective: 1400px;
}

.aura {
  position: absolute;
  border-radius: 999px;
  filter: blur(20px);
  opacity: 0.78;
  animation: hero-aura-pulse 14s ease-in-out infinite;
}

.aura-coral {
  top: 14%;
  left: 10%;
  width: 220px;
  height: 220px;
  background: rgba(255, 106, 96, 0.24);
}

.aura-blue {
  right: 2%;
  top: 12%;
  width: 250px;
  height: 250px;
  background: rgba(79, 137, 255, 0.2);
}

.aura-mint {
  bottom: 4%;
  left: 32%;
  width: 240px;
  height: 240px;
  background: rgba(72, 183, 154, 0.18);
}

.device-card {
  position: absolute;
  width: min(260px, 42vw);
  padding: 12px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform:
    translate(var(--card-x, 0), var(--card-y, 0))
    rotate(var(--card-rotate, 0deg));
  animation:
    hero-card-enter 0.9s var(--card-delay, 0ms) cubic-bezier(0.22, 1, 0.36, 1) forwards,
    hero-card-float 9s calc(var(--card-delay, 0ms) + 1s) ease-in-out infinite;
  will-change: transform;
}

.device-card img {
  border-radius: 20px;
  background: #10192b;
}

.device-card.top {
  left: 16%;
  top: 2%;
  z-index: 1;
  width: min(206px, 32vw);
  --card-x: 0px;
  --card-y: 0px;
  --card-rotate: -6deg;
  --card-float: -12px;
  --card-delay: 0ms;
}

.device-card.main {
  left: 50%;
  top: 10%;
  z-index: 4;
  width: min(286px, 44vw);
  --card-x: -50%;
  --card-y: 0px;
  --card-rotate: -2deg;
  --card-float: -18px;
  --card-delay: 220ms;
}

.device-card.left {
  left: 0;
  bottom: 8%;
  z-index: 2;
  width: min(236px, 38vw);
  --card-x: 0px;
  --card-y: 0px;
  --card-rotate: -10deg;
  --card-float: -14px;
  --card-delay: 120ms;
}

.device-card.right {
  top: 18%;
  right: 0;
  z-index: 3;
  width: min(228px, 36vw);
  --card-x: 0px;
  --card-y: 0px;
  --card-rotate: 8deg;
  --card-float: 14px;
  --card-delay: 360ms;
}

.floating-note {
  position: absolute;
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  animation:
    hero-note-enter 0.8s var(--note-delay, 0ms) cubic-bezier(0.22, 1, 0.36, 1) forwards,
    hero-note-float 10s calc(var(--note-delay, 0ms) + 1.1s) ease-in-out infinite;
}

.floating-note small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.floating-note strong {
  font-size: 0.95rem;
  line-height: 1.2;
}

.note-one {
  top: 10%;
  left: 2%;
  --note-delay: 520ms;
}

.note-two {
  right: 4%;
  bottom: 11%;
  --note-delay: 720ms;
}

.note-three {
  left: 34%;
  bottom: 3%;
  --note-delay: 620ms;
}

@keyframes hero-card-enter {
  from {
    opacity: 0;
    transform:
      translate(var(--card-x, 0), calc(var(--card-y, 0px) + 34px))
      rotate(calc(var(--card-rotate, 0deg) - 3deg))
      scale(0.94);
  }
  to {
    opacity: 1;
    transform:
      translate(var(--card-x, 0), var(--card-y, 0))
      rotate(var(--card-rotate, 0deg))
      scale(1);
  }
}

@keyframes hero-card-float {
  0%,
  100% {
    transform:
      translate(var(--card-x, 0), var(--card-y, 0))
      rotate(var(--card-rotate, 0deg));
  }
  50% {
    transform:
      translate(var(--card-x, 0), calc(var(--card-y, 0px) + var(--card-float, -12px)))
      rotate(calc(var(--card-rotate, 0deg) + 1.2deg));
  }
}

@keyframes hero-note-enter {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.94);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes hero-note-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes hero-aura-pulse {
  0%,
  100% {
    opacity: 0.68;
    transform: scale(1);
  }
  50% {
    opacity: 0.94;
    transform: scale(1.08);
  }
}

.section-head {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-head h2 {
  margin: 16px 0 12px;
  font-size: clamp(2rem, 4vw, 3.3rem);
}

.feature-grid,
.dual-grid,
.trust-grid,
.faq-grid,
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.function-index-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.function-index-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.function-index-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.function-index-card strong {
  display: block;
  margin: 14px 0 10px;
  letter-spacing: -0.03em;
}

.function-index-card p {
  margin: 0;
  color: var(--muted-strong);
}

.feature-showcase-card {
  margin: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow-md);
}

.feature-showcase-media {
  overflow: hidden;
  border-radius: 24px;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 106, 96, 0.12), transparent 28%),
    radial-gradient(circle at 82% 18%, rgba(79, 137, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 253, 0.9));
}

.feature-showcase-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.feature-showcase-card figcaption {
  margin-top: 18px;
}

.feature-showcase-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
}

.feature-showcase-card p {
  margin: 0;
  color: var(--muted-strong);
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.stat-card,
.feature-card,
.support-card,
.trust-card,
.page-nav {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.stat-card,
.feature-card,
.support-card,
.trust-card {
  padding: 24px;
  border-radius: 26px;
}

.stat-card strong,
.feature-card h3,
.support-card h2,
.trust-card h3 {
  display: block;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
}

.feature-card .tag,
.function-index-card .tag,
.icon-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(20, 35, 58, 0.08);
  color: var(--muted-strong);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feature-card h3 {
  margin-top: 14px;
  font-size: 1.3rem;
}

.story-grid,
.trust-layout,
.cta-shell,
.page-layout {
  display: grid;
  gap: 22px;
  align-items: stretch;
}

.story-grid {
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.8fr);
}

.feature-sequence {
  display: grid;
  gap: 22px;
}

.function-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.85fr);
  gap: 22px;
  align-items: stretch;
}

.function-shell.reverse .function-copy {
  order: 2;
}

.function-shell.reverse .function-visual {
  order: 1;
}

.trust-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.cta-shell {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 0.85fr);
  padding: 34px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(20, 35, 58, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 252, 255, 0.84)),
    linear-gradient(135deg, rgba(79, 137, 255, 0.08), rgba(255, 106, 96, 0.08));
  box-shadow: var(--shadow-md);
}

.page-layout {
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  align-items: start;
}

.story-card,
.highlight-panel,
.prose,
.empty-state,
.device-stage {
  border: 1px solid rgba(20, 35, 58, 0.12);
  box-shadow: var(--shadow-md);
}

.story-card,
.highlight-panel,
.prose,
.device-stage,
.empty-state {
  border-radius: 34px;
}

.story-card,
.highlight-panel,
.prose,
.device-stage {
  background: rgba(255, 255, 255, 0.84);
}

.function-copy,
.function-visual {
  border: 1px solid rgba(20, 35, 58, 0.12);
  border-radius: 34px;
  box-shadow: var(--shadow-md);
}

.function-copy {
  padding: 32px;
  background: rgba(255, 255, 255, 0.86);
}

.function-copy h3 {
  margin: 14px 0 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.function-copy p {
  color: var(--muted-strong);
}

.function-points {
  margin: 22px 0 0;
  padding-left: 20px;
  color: var(--muted-strong);
}

.function-points li + li {
  margin-top: 10px;
}

.function-visual {
  padding: 24px;
  display: grid;
  gap: 16px;
  align-content: start;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(246, 249, 254, 0.86));
}

.function-visual.tone-coral {
  background:
    radial-gradient(circle at 18% 16%, rgba(255, 106, 96, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 248, 245, 0.88));
}

.function-visual.tone-blue {
  background:
    radial-gradient(circle at 82% 18%, rgba(79, 137, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(245, 249, 255, 0.88));
}

.function-visual.tone-mint {
  background:
    radial-gradient(circle at 18% 18%, rgba(72, 183, 154, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(245, 255, 250, 0.88));
}

.function-visual.tone-gold {
  background:
    radial-gradient(circle at 82% 18%, rgba(247, 160, 111, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 250, 244, 0.88));
}

.placeholder-surface {
  min-height: 360px;
  padding: 28px;
  border: 2px dashed rgba(20, 35, 58, 0.18);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(244, 248, 253, 0.72)),
    repeating-linear-gradient(
      135deg,
      rgba(79, 137, 255, 0.04),
      rgba(79, 137, 255, 0.04) 14px,
      rgba(255, 255, 255, 0) 14px,
      rgba(255, 255, 255, 0) 28px
    );
  display: grid;
  align-content: center;
  gap: 10px;
}

.placeholder-kicker {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.placeholder-surface strong {
  font-size: 1.6rem;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.placeholder-surface p {
  margin: 0;
  max-width: 28ch;
  color: var(--muted-strong);
}

.placeholder-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.placeholder-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(20, 35, 58, 0.08);
  color: var(--muted-strong);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.story-card,
.highlight-panel,
.prose {
  padding: 32px;
}

.story-card h3 {
  margin: 14px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.checklist {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.checklist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
}

.checklist li::before {
  content: "";
  width: 14px;
  height: 14px;
  margin-top: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 0 6px rgba(255, 106, 96, 0.1);
}

.device-stage {
  position: relative;
  min-height: 540px;
  padding: 36px;
  background:
    radial-gradient(circle at 16% 16%, rgba(255, 106, 96, 0.12), transparent 30%),
    radial-gradient(circle at 86% 22%, rgba(79, 137, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 249, 254, 0.88));
}

.device-stage .device-card {
  position: relative;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
  width: min(292px, 100%);
  margin: 0 auto;
  transform: none;
}

.mini-panel {
  position: absolute;
  padding: 14px 16px;
  border-radius: 20px;
  border: 1px solid rgba(20, 35, 58, 0.1);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.mini-panel small {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mini-panel strong {
  display: block;
  margin-top: 4px;
  font-size: 0.95rem;
  line-height: 1.25;
}

.mini-panel.top-left {
  top: 42px;
  left: 32px;
}

.mini-panel.top-right {
  top: 90px;
  right: 32px;
}

.mini-panel.bottom-left {
  bottom: 44px;
  left: 32px;
}

.mini-panel.bottom-right {
  right: 24px;
  bottom: 120px;
}

.highlight-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(247, 251, 255, 0.88)),
    linear-gradient(135deg, rgba(79, 137, 255, 0.08), rgba(72, 183, 154, 0.08));
}

.highlight-panel h2 {
  margin: 16px 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.legal-note,
.notice-box {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 20px;
  color: var(--muted-strong);
}

.legal-note {
  border: 1px solid rgba(255, 106, 96, 0.12);
  background: rgba(255, 106, 96, 0.07);
}

.notice-box {
  border: 1px solid rgba(79, 137, 255, 0.16);
  background: rgba(79, 137, 255, 0.08);
}

.trust-card h3 {
  margin-top: 14px;
  font-size: 1.16rem;
}

.faq-item {
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 24px 24px;
}

.link-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.footer {
  padding: 24px 0 42px;
}

.footer-shell {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  max-width: 54ch;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 16px;
  color: var(--muted-strong);
  font-weight: 600;
}

.page-hero {
  padding: 46px 0 22px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.85rem;
}

.breadcrumbs span[aria-hidden="true"] {
  color: var(--line-strong);
}

.page-hero h1 {
  max-width: 12ch;
  margin: 16px 0 14px;
  font-size: clamp(2.5rem, 6vw, 4.4rem);
}

.page-hero p {
  max-width: 70ch;
  font-size: 1.05rem;
}

.page-nav {
  position: sticky;
  top: 118px;
  padding: 20px;
  border-radius: 24px;
}

.page-nav h2 {
  margin: 0 0 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-nav a {
  display: block;
  padding: 8px 0;
  color: var(--muted-strong);
  font-weight: 600;
}

.toc-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.prose h2 {
  margin: 32px 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.35rem);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 22px 0 10px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.prose ul {
  margin: 0 0 18px 18px;
  color: var(--muted-strong);
}

.prose li {
  margin-bottom: 10px;
}

.support-card h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.support-card ul {
  margin: 0 0 0 18px;
  color: var(--muted-strong);
}

.empty-state {
  padding: 48px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(246, 249, 254, 0.86)),
    linear-gradient(135deg, rgba(79, 137, 255, 0.08), rgba(255, 106, 96, 0.08));
}

.empty-state h1 {
  margin: 12px 0 14px;
  font-family: var(--display);
  font-size: clamp(2.5rem, 7vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.empty-state p {
  max-width: 54ch;
  margin: 0 auto 22px;
}

@media (max-width: 1100px) {
  .hero-grid,
  .story-grid,
  .function-shell,
  .trust-layout,
  .cta-shell,
  .page-layout {
    grid-template-columns: 1fr;
  }

  .page-nav {
    position: static;
  }
}

@media (max-width: 900px) {
  .header-shell {
    flex-direction: column;
    align-items: stretch;
    border-radius: 30px;
  }

  .topnav {
    justify-content: flex-start;
  }

  .feature-grid,
  .feature-showcase-grid,
  .function-index-grid,
  .dual-grid,
  .trust-grid,
  .faq-grid,
  .support-grid,
  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stage {
    min-height: 600px;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 68px 0;
  }

  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .hero-grid {
    gap: 30px;
  }

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

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

  .device-card {
    width: min(200px, 48vw);
    padding: 10px;
  }

  .device-card.top {
    width: min(152px, 32vw);
  }

  .device-card.main {
    width: min(216px, 50vw);
  }

  .device-card.left {
    width: min(178px, 42vw);
  }

  .device-card.right {
    width: min(170px, 40vw);
  }

  .floating-note {
    padding: 12px 14px;
  }

  .note-one {
    top: 8px;
    left: 0;
  }

  .note-two {
    right: 0;
    bottom: 0;
  }

  .note-three {
    left: 20%;
    bottom: 10%;
  }

  .mini-panel {
    position: static;
    margin-top: 14px;
  }

  .placeholder-surface {
    min-height: 300px;
  }
}

@media (max-width: 620px) {
  .feature-grid,
  .feature-showcase-grid,
  .function-index-grid,
  .dual-grid,
  .trust-grid,
  .faq-grid,
  .support-grid,
  .stat-strip {
    grid-template-columns: 1fr;
  }

  .actions > * {
    flex: 1 1 220px;
  }

  .footer-shell {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .story-card,
  .function-copy,
  .function-visual,
  .highlight-panel,
  .prose,
  .cta-shell,
  .device-stage,
  .empty-state {
    padding: 24px;
  }

  .page-nav {
    padding: 18px;
  }
}

@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;
  }
}