:root {
  color-scheme: light;
  --bg: #f6f3ec;
  --paper: #fbfaf6;
  --paper-soft: #f1eee6;
  --surface: rgba(255, 255, 252, 0.88);
  --surface-solid: #fffefa;
  --surface-muted: #efebe1;
  --ink: #10151b;
  --text: #303841;
  --muted: #707a80;
  --line: rgba(28, 33, 33, 0.12);
  --line-strong: rgba(28, 33, 33, 0.22);
  --green: #0b684d;
  --green-strong: #064934;
  --green-soft: #dcebe4;
  --gold: #bc7a28;
  --gold-soft: #fff0d8;
  --danger: #b95042;
  --radius: 8px;
  --shadow: 0 30px 90px rgba(47, 43, 35, 0.16);
  --soft-shadow: 0 16px 46px rgba(47, 43, 35, 0.1);
  --content: min(1280px, calc(100% - 48px));
  --article: min(820px, calc(100% - 48px));
  font-family: "Aptos", "SF Pro Display", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
  font-variant-numeric: tabular-nums;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  line-height: 1.62;
  background:
    radial-gradient(circle at 15% 0%, rgba(255, 255, 255, 0.82), transparent 38rem),
    linear-gradient(180deg, var(--paper) 0%, var(--bg) 38rem, var(--paper) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 70;
  pointer-events: none;
  opacity: 0.035;
  background-image:
    linear-gradient(90deg, rgba(16, 21, 27, 0.8) 1px, transparent 1px),
    linear-gradient(rgba(16, 21, 27, 0.8) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: multiply;
}

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

button,
input {
  font: inherit;
}

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

.skip-link {
  position: fixed;
  left: 18px;
  top: 14px;
  z-index: 100;
  transform: translateY(-140%);
  border-radius: var(--radius);
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 780;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 22px;
  min-height: 72px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.86);
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 850;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent),
    #0c1118;
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.02em;
  box-shadow: 0 14px 28px rgba(16, 21, 27, 0.18);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.site-nav a,
.header-action,
.menu-toggle {
  min-height: 40px;
  border-radius: var(--radius);
  padding: 0 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 760;
  white-space: nowrap;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), color 260ms cubic-bezier(0.16, 1, 0.3, 1), background 260ms cubic-bezier(0.16, 1, 0.3, 1), border-color 260ms cubic-bezier(0.16, 1, 0.3, 1);
}

.site-nav a,
.header-action,
.menu-toggle,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.site-nav a:hover,
.site-nav a[aria-current="true"] {
  color: var(--ink);
  background: rgba(11, 104, 77, 0.08);
}

.site-nav a[aria-current="true"]::after {
  content: "";
  align-self: flex-end;
  width: 32px;
  height: 2px;
  margin-left: -32px;
  border-radius: 999px;
  background: var(--green);
  transform: translateY(5px);
}

.header-action {
  border: 1px solid rgba(6, 73, 52, 0.24);
  background: linear-gradient(180deg, #13775a, var(--green));
  color: #fff;
  box-shadow: 0 14px 28px rgba(11, 104, 77, 0.24);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}

.button {
  min-height: 46px;
  gap: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0 18px;
  background: rgba(255, 255, 252, 0.8);
  color: var(--ink);
  font-weight: 820;
  cursor: pointer;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 260ms cubic-bezier(0.16, 1, 0.3, 1), background 260ms cubic-bezier(0.16, 1, 0.3, 1), border-color 260ms cubic-bezier(0.16, 1, 0.3, 1);
}

.button:hover,
.header-action:hover,
.menu-toggle:hover {
  transform: translateY(-1px);
}

.button:active,
.header-action:active,
.menu-toggle:active {
  transform: scale(0.985);
}

.button.primary {
  border-color: var(--green);
  background: linear-gradient(180deg, #13775a, var(--green));
  color: #fff;
  box-shadow: 0 18px 34px rgba(11, 104, 77, 0.24);
}

.button.gold {
  border-color: rgba(188, 122, 40, 0.54);
  background: linear-gradient(180deg, #c98936, var(--gold));
  color: #fff;
}

.button.ghost {
  background: rgba(255, 255, 252, 0.58);
}

.button.link {
  min-height: auto;
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--green-strong);
}

.button.wide {
  width: 100%;
}

.button:disabled,
button[disabled] {
  cursor: not-allowed;
  color: var(--muted);
  background: var(--surface-muted);
  box-shadow: none;
  transform: none;
}

.container,
.section,
.page-hero,
.hero-inner,
.site-footer {
  width: var(--content);
  margin-inline: auto;
}

.page-shell {
  width: var(--content);
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.section.compact {
  padding: 56px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.kicker,
.mini-label,
.plan-name {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--green-strong);
  font-size: 13px;
  font-weight: 820;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  color: var(--ink);
}

h1 {
  margin: 0;
  font-size: clamp(46px, 7.2vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.036em;
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.16;
  letter-spacing: -0.018em;
}

p {
  margin: 0;
}

.lead {
  max-width: 680px;
  color: var(--text);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.48;
}

.muted {
  color: var(--muted);
}

.inline-actions,
.hero-actions,
.plan-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.soft-panel,
.glass-panel,
.product-panel,
.plan-card,
.checkout-card,
.download-card,
.contact-card,
.legal-callout,
.proof-panel,
.legal-toc,
.legal-summary,
.duo-band,
.compare-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--soft-shadow);
}

.glass-panel {
  backdrop-filter: blur(18px);
}

.home-hero {
  position: relative;
  min-height: calc(100dvh - 72px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(251, 250, 246, 0.14), rgba(246, 243, 236, 0.88) 72%, var(--bg)),
    url("images/home-hero-scene.png") center / cover no-repeat;
}

.home-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 50% 22%, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.32) 34rem, rgba(246, 243, 236, 0.78));
}

.hero-inner {
  display: grid;
  min-height: calc(100dvh - 72px);
  align-items: center;
  padding: 72px 0 42px;
}

.hero-copy {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.hero-copy .lead {
  margin: 22px auto 0;
}

.hero-actions {
  justify-content: center;
  margin-top: 28px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 15px;
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.hero-product-row {
  display: grid;
  grid-template-columns: 1.05fr 0.8fr 0.52fr;
  gap: 18px;
  align-items: end;
  margin-top: 54px;
}

.command-palette,
.memory-card,
.sync-card {
  min-width: 0;
  padding: 16px;
}

.command-palette {
  min-height: 310px;
}

.palette-search {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 14px;
  background: rgba(255, 255, 252, 0.74);
  color: var(--muted);
}

.kbd {
  display: inline-flex;
  min-width: 34px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f4f1e8;
  color: var(--ink);
  font-size: 13px;
  font-weight: 760;
}

.result-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.result-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 56px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 10px 12px;
  background: rgba(255, 255, 252, 0.7);
}

.result-row.active {
  border-color: rgba(11, 104, 77, 0.24);
  background: rgba(11, 104, 77, 0.09);
}

.result-icon,
.feature-index,
.privacy-icon,
.legal-icon {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--green-soft);
  color: var(--green-strong);
  font-weight: 850;
}

.result-row strong,
.result-row span,
.timeline-item strong,
.device-row strong {
  display: block;
}

.result-row strong,
.timeline-item strong,
.device-row strong {
  color: var(--ink);
}

.result-row span,
.result-row small,
.timeline-item span,
.device-row span {
  color: var(--muted);
  font-size: 13px;
}

.memory-card {
  min-height: 246px;
}

.memory-track {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: center;
}

.timeline-item::before {
  content: attr(data-time);
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.sync-card {
  min-height: 276px;
}

.ring-meter {
  --p: 72%;
  display: grid;
  width: 116px;
  height: 116px;
  place-items: center;
  margin: 18px auto 12px;
  border-radius: 50%;
  background: conic-gradient(var(--green) var(--p), rgba(16, 21, 27, 0.12) 0);
}

.ring-meter::before {
  content: "";
  position: absolute;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--surface-solid);
}

.ring-meter strong {
  position: relative;
  color: var(--ink);
  font-size: 26px;
}

.device-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.device-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 252, 0.68);
}

.fact-strip div {
  min-height: 112px;
  border-right: 1px solid var(--line);
  padding: 24px 28px;
}

.fact-strip div:last-child {
  border-right: 0;
}

.fact-strip strong,
.fact-strip span {
  display: block;
}

.fact-strip strong {
  color: var(--ink);
  font-size: 22px;
  letter-spacing: -0.018em;
}

.fact-strip span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.story-section {
  display: grid;
  grid-template-columns: 0.76fr 1.24fr;
  gap: 56px;
  align-items: start;
}

.story-index {
  position: sticky;
  top: 108px;
  padding-left: 34px;
  border-left: 1px solid var(--line-strong);
}

.story-number {
  display: block;
  color: var(--green);
  font-size: clamp(82px, 11vw, 150px);
  line-height: 0.9;
  letter-spacing: -0.07em;
}

.story-index h2 {
  margin-top: 28px;
}

.story-steps {
  display: grid;
  gap: 22px;
}

.story-step {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 28px;
  align-items: center;
  min-height: 190px;
  border-bottom: 1px solid var(--line);
  padding: 0 0 22px;
}

.story-step:last-child {
  border-bottom: 0;
}

.story-step h3 {
  font-size: 34px;
}

.story-visual {
  min-height: 134px;
  padding: 14px;
}

.mini-search {
  display: grid;
  gap: 10px;
}

.mini-line {
  height: 12px;
  border-radius: 999px;
  background: rgba(16, 21, 27, 0.11);
}

.mini-line.green {
  width: 62%;
  background: rgba(11, 104, 77, 0.28);
}

.controls-list {
  display: grid;
  gap: 10px;
}

.control-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.toggle {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: var(--green);
}

.toggle.off {
  background: rgba(16, 21, 27, 0.18);
}

.device-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.device-pill,
.chip,
.price-pill,
.status-pill {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 12px;
  background: rgba(255, 255, 252, 0.72);
  color: var(--text);
  font-size: 13px;
  font-weight: 760;
}

.page-hero {
  padding: 74px 0 34px;
}

.page-hero.compact {
  padding-bottom: 18px;
}

.page-hero h1 {
  max-width: 920px;
  font-size: clamp(42px, 6vw, 76px);
}

.page-hero .lead {
  margin-top: 18px;
}

.feature-shell {
  display: grid;
  grid-template-columns: 1.56fr 0.74fr;
  gap: 42px;
  align-items: start;
}

.feature-canvas {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 18px;
}

.feature-card {
  min-height: 192px;
  padding: 22px;
}

.feature-card.large {
  grid-column: span 2;
}

.feature-card.sync {
  grid-column: span 2;
}

.feature-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
}

.feature-status {
  color: var(--gold);
  font-size: 13px;
  font-weight: 820;
}

.feature-status.free {
  color: var(--green-strong);
}

.feature-card p {
  color: var(--muted);
}

.central-command {
  position: absolute;
  left: 50%;
  top: 24px;
  z-index: 2;
  width: min(520px, 62%);
  transform: translateX(-50%);
  padding: 14px;
}

.central-command .palette-search {
  margin-bottom: 12px;
}

.feature-sidebar {
  position: sticky;
  top: 104px;
  padding: 28px;
}

.feature-sidebar ul {
  display: grid;
  gap: 14px;
  margin: 26px 0;
  padding: 0;
  list-style: none;
}

.feature-sidebar li,
.legal-summary-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.feature-sidebar li:last-child {
  border-bottom: 0;
}

.feature-sidebar strong,
.legal-summary-row strong {
  color: var(--ink);
}

.feature-sidebar span,
.legal-summary-row span {
  color: var(--muted);
}

.pricing-hero {
  max-width: 980px;
  margin-inline: auto;
  padding: 42px 0 18px;
  text-align: center;
}

.pricing-hero h1 {
  font-size: clamp(44px, 6vw, 74px);
}

.pricing-hero .lead {
  margin: 16px auto 0;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  width: min(940px, calc(100% - 48px));
  margin: 14px auto 24px;
  overflow: hidden;
}

.trust-strip div {
  border-right: 1px solid var(--line);
  padding: 20px;
}

.trust-strip div:last-child {
  border-right: 0;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  color: var(--ink);
}

.trust-strip span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

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

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.plan-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  padding: 26px;
}

.plan-card.featured {
  position: relative;
  border-color: rgba(188, 122, 40, 0.55);
  background:
    linear-gradient(180deg, rgba(255, 240, 216, 0.5), transparent 35%),
    var(--surface);
  box-shadow: var(--shadow);
}

.plan-card.featured::before {
  content: "推荐";
  position: absolute;
  left: 50%;
  top: -1px;
  transform: translateX(-50%);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 8px 22px;
  background: var(--gold);
  color: #fff;
  font-size: 13px;
  font-weight: 850;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 14px 0 8px;
  color: var(--ink);
  font-size: clamp(44px, 5vw, 62px);
  font-weight: 880;
  line-height: 1;
  letter-spacing: -0.055em;
}

.price small,
.duo-price small {
  color: var(--muted);
  font-size: 16px;
  font-weight: 720;
  letter-spacing: 0;
}

.price-pill {
  width: fit-content;
  margin: 0 0 14px;
  border-color: rgba(188, 122, 40, 0.24);
  background: var(--gold-soft);
  color: #925816;
}

.plan-card ul,
.duo-band ul,
.check-list {
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.plan-card ul,
.duo-band ul {
  flex: 1;
}

.plan-card li,
.duo-band li,
.check-list li,
.receipt-list li {
  position: relative;
  padding-left: 24px;
}

.plan-card li + li,
.duo-band li + li,
.check-list li + li,
.receipt-list li + li {
  margin-top: 10px;
}

.plan-card li::before,
.duo-band li::before,
.check-list li::before,
.receipt-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.duo-band {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr auto;
  gap: 28px;
  align-items: center;
  margin-top: 18px;
  padding: 26px;
  background:
    linear-gradient(90deg, rgba(11, 104, 77, 0.08), transparent 46%),
    var(--surface);
}

.duo-price {
  color: var(--ink);
  font-size: clamp(38px, 4vw, 52px);
  font-weight: 880;
  line-height: 1;
  letter-spacing: -0.05em;
}

.audit-note {
  display: flex;
  justify-content: center;
  gap: 14px;
  align-items: center;
  margin: 26px auto 0;
  color: var(--muted);
  text-align: center;
}

.compare-box {
  margin-top: 42px;
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  border-bottom: 1px solid var(--line);
  padding: 16px 18px;
  text-align: left;
}

.compare-table th {
  color: var(--ink);
  font-size: 14px;
}

.compare-table td {
  color: var(--muted);
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.flow-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 42px;
  align-items: start;
}

.step-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 72px;
  padding: 14px;
}

.step-list li::before {
  content: counter(step);
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--green);
  color: #fff;
  font-weight: 850;
}

.step-list strong,
.step-list span {
  display: block;
}

.step-list span,
.faq-section p {
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.faq-section details {
  padding: 18px;
}

.faq-section summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 820;
}

.faq-section details p {
  margin-top: 10px;
}

.checkout-main {
  width: var(--content);
  margin-inline: auto;
}

.checkout-panel {
  display: grid;
  grid-template-columns: 1.06fr 0.9fr 0.46fr;
  gap: 22px;
  align-items: start;
  padding: 48px 0 38px;
}

.checkout-card {
  padding: 26px;
}

.checkout-card h1 {
  font-size: clamp(32px, 4vw, 54px);
}

.order-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: start;
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
}

.amount {
  color: var(--green);
  font-size: 42px;
  font-weight: 880;
  letter-spacing: -0.05em;
}

.order-lines {
  display: grid;
  gap: 12px;
  margin: 26px 0;
}

.order-lines div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 11px;
}

.order-lines dt {
  color: var(--muted);
}

.order-lines dd {
  margin: 0;
  color: var(--ink);
  font-weight: 820;
  text-align: right;
}

.notice,
.payment-status,
.inline-notice {
  border: 1px solid rgba(188, 122, 40, 0.22);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255, 240, 216, 0.6);
  color: var(--text);
}

.payment-box {
  position: sticky;
  top: 96px;
}

.plan-switch {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 18px 0;
}

.plan-switch a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.plan-switch a[aria-current="true"] {
  border-color: rgba(11, 104, 77, 0.36);
  background: rgba(11, 104, 77, 0.09);
  color: var(--ink);
}

.pay-option {
  display: grid;
  width: 100%;
  gap: 4px;
  margin: 10px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 252, 0.76);
  text-align: left;
  color: var(--ink);
}

.pay-option span {
  font-weight: 850;
}

.pay-option strong {
  color: var(--muted);
  font-size: 13px;
}

.pay-option.active {
  border-color: var(--green);
  background: rgba(11, 104, 77, 0.08);
}

.pay-option:disabled {
  color: var(--muted);
}

.service-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.service-flow div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(255, 255, 252, 0.62);
}

.service-flow strong,
.service-flow span {
  display: block;
}

.service-flow span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.checkout-aside {
  display: grid;
  gap: 14px;
}

.audit-card {
  padding: 22px;
}

.audit-card strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
}

.audit-card p,
.audit-card li {
  color: var(--muted);
}

.audit-card ol {
  margin: 16px 0 0;
  padding-left: 1.2em;
}

.download-hero,
.contact-hero {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 54px;
  align-items: center;
  padding: 54px 0 32px;
}

.download-hero h1,
.contact-hero h1 {
  font-size: clamp(46px, 6.8vw, 84px);
}

.media-frame {
  overflow: hidden;
  min-height: 420px;
}

.media-frame img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
}

.release-proof,
.contact-routes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.release-proof div,
.contact-routes article,
.download-card,
.contact-card,
.proof-panel {
  padding: 22px;
}

.release-proof strong,
.release-proof span {
  display: block;
}

.release-proof span,
.contact-routes p,
.download-card p,
.contact-card p,
.proof-panel p {
  color: var(--muted);
}

.platform-grid,
.contact-grid,
.legal-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.download-card.current {
  border-color: rgba(11, 104, 77, 0.36);
  background: rgba(11, 104, 77, 0.06);
}

.download-card ul,
.contact-checklist ul,
.receipt-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.download-card li,
.contact-checklist li {
  color: var(--muted);
}

.download-card li + li,
.contact-checklist li + li {
  margin-top: 8px;
}

.support-board {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 14px;
}

.support-email {
  display: inline-block;
  color: var(--green);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 860;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.support-email span {
  display: block;
}

.contact-checklist {
  margin-top: 14px;
  padding: 22px;
}

.legal-page {
  width: var(--content);
  margin-inline: auto;
  padding: 56px 0 82px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 0.28fr minmax(0, 1fr) 0.34fr;
  gap: 36px;
  align-items: start;
}

.legal-toc,
.legal-summary {
  position: sticky;
  top: 96px;
  padding: 18px;
}

.legal-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 18px;
}

.legal-tabs a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.legal-tabs a[aria-current="true"] {
  border-color: rgba(11, 104, 77, 0.3);
  background: rgba(11, 104, 77, 0.08);
  color: var(--green-strong);
}

.legal-toc ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.legal-toc a {
  display: block;
  border-radius: var(--radius);
  padding: 9px 10px;
  color: var(--muted);
  font-size: 14px;
}

.legal-toc a:hover {
  background: rgba(11, 104, 77, 0.08);
  color: var(--ink);
}

.legal-article {
  min-width: 0;
}

.legal-article header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 28px;
}

.legal-article h1 {
  font-size: clamp(40px, 5vw, 66px);
}

.legal-article h2 {
  margin-top: 38px;
  font-size: clamp(24px, 3vw, 34px);
}

.legal-article p {
  max-width: 72ch;
  color: var(--text);
}

.legal-callout {
  margin: 26px 0;
  padding: 18px;
  background: rgba(11, 104, 77, 0.08);
}

.legal-summary {
  display: grid;
  gap: 14px;
}

.legal-summary-card {
  padding: 18px;
}

.legal-summary-card p {
  color: var(--muted);
}

.cta-band {
  margin-bottom: 72px;
  padding: 46px;
  background:
    linear-gradient(135deg, rgba(11, 104, 77, 0.18), transparent),
    #111820;
  color: #fff;
}

.cta-band h2,
.cta-band p {
  color: #fff;
}

.cta-band p {
  max-width: 680px;
  margin-bottom: 24px;
  opacity: 0.82;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 24px;
  align-items: center;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 4px 0 0;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--ink);
}

.icp {
  white-space: nowrap;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #101412;
    --paper: #151916;
    --paper-soft: #1c211d;
    --surface: rgba(26, 31, 28, 0.86);
    --surface-solid: #1a1f1c;
    --surface-muted: #232a25;
    --ink: #f4f7f2;
    --text: #d7ded7;
    --muted: #9ba69f;
    --line: rgba(232, 238, 230, 0.12);
    --line-strong: rgba(232, 238, 230, 0.22);
    --green: #47c997;
    --green-strong: #9de9c9;
    --green-soft: rgba(71, 201, 151, 0.13);
    --gold: #df9d45;
    --gold-soft: rgba(223, 157, 69, 0.13);
    --shadow: 0 30px 90px rgba(0, 0, 0, 0.34);
    --soft-shadow: 0 16px 46px rgba(0, 0, 0, 0.22);
  }

  body {
    background:
      radial-gradient(circle at 16% 0%, rgba(71, 201, 151, 0.1), transparent 32rem),
      linear-gradient(180deg, var(--paper) 0%, var(--bg) 42rem, var(--paper) 100%);
  }

  body::before {
    opacity: 0.025;
    mix-blend-mode: screen;
  }

  .site-header {
    background: rgba(21, 25, 22, 0.88);
  }

  .brand-mark {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.18), transparent),
      #f4f7f2;
    color: #101412;
  }

  .button:not(.primary):not(.gold),
  .palette-search,
  .result-row,
  .device-pill,
  .chip,
  .price-pill,
  .status-pill,
  .media-frame {
    background: rgba(255, 255, 255, 0.06);
  }

  .home-hero::before {
    opacity: 0.6;
  }

  .home-hero::after {
    background: radial-gradient(circle at 50% 20%, rgba(16, 20, 18, 0.36), rgba(16, 20, 18, 0.74) 38rem, rgba(16, 20, 18, 0.92));
  }

  .notice,
  .payment-status,
  .inline-notice {
    background: rgba(223, 157, 69, 0.13);
  }

  .ring-meter::before {
    background: var(--surface-solid);
  }

  .kbd {
    background: rgba(255, 255, 255, 0.08);
  }
}

@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 680ms cubic-bezier(0.16, 1, 0.3, 1), transform 680ms cubic-bezier(0.16, 1, 0.3, 1);
  }

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

@media (max-width: 1180px) {
  .hero-product-row,
  .feature-shell,
  .checkout-panel,
  .download-hero,
  .contact-hero,
  .legal-layout,
  .story-section {
    grid-template-columns: 1fr;
  }

  .feature-sidebar,
  .legal-toc,
  .legal-summary,
  .story-index,
  .payment-box {
    position: static;
  }

  .central-command {
    position: relative;
    left: auto;
    top: auto;
    width: 100%;
    transform: none;
    grid-column: span 2;
  }

  .checkout-panel {
    padding-top: 42px;
  }

  .checkout-aside,
  .release-proof,
  .contact-routes {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    padding: 12px 18px;
  }

  .header-action {
    justify-self: end;
  }

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

  .site-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: calc(100% + 8px);
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 8px;
    background: var(--surface-solid);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    justify-content: flex-start;
  }

  .site-nav a[aria-current="true"]::after {
    display: none;
  }

  .hero-inner {
    min-height: auto;
    padding: 54px 0 32px;
  }

  .hero-product-row,
  .pricing-grid,
  .fact-strip,
  .platform-grid,
  .contact-grid,
  .legal-cards,
  .service-flow,
  .faq-grid,
  .release-proof,
  .contact-routes {
    grid-template-columns: repeat(2, 1fr);
  }

  .story-step,
  .duo-band,
  .flow-grid,
  .support-board {
    grid-template-columns: 1fr;
  }

  .sync-card {
    grid-column: span 2;
  }

  .fact-strip div:nth-child(2),
  .trust-strip div:nth-child(2) {
    border-right: 0;
  }

  .fact-strip div,
  .trust-strip div {
    border-bottom: 1px solid var(--line);
  }

  .fact-strip div:nth-last-child(-n + 2),
  .trust-strip div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

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

@media (max-width: 620px) {
  :root {
    --content: calc(100% - 32px);
    --article: calc(100% - 32px);
  }

  .site-header {
    min-height: 66px;
    padding: 10px 14px;
  }

  .brand span:last-child {
    display: none;
  }

  .header-action {
    display: none;
  }

  h1,
  .download-hero h1,
  .contact-hero h1 {
    font-size: 42px;
    line-height: 1.04;
  }

  h2 {
    font-size: 34px;
  }

  .lead {
    font-size: 17px;
  }

  .home-hero::before {
    background-position: center;
  }

  .hero-product-row,
  .pricing-grid,
  .fact-strip,
  .platform-grid,
  .contact-grid,
  .legal-cards,
  .service-flow,
  .faq-grid,
  .release-proof,
  .contact-routes,
  .feature-canvas {
    grid-template-columns: 1fr;
  }

  .central-command,
  .feature-card.large,
  .feature-card.sync,
  .sync-card {
    grid-column: auto;
  }

  .command-palette,
  .memory-card,
  .sync-card {
    min-height: auto;
  }

  .result-row {
    grid-template-columns: 36px 1fr;
  }

  .result-row small {
    display: none;
  }

  .section {
    padding: 66px 0;
  }

  .page-hero,
  .pricing-hero {
    padding-top: 46px;
  }

  .pricing-hero h1,
  .page-hero h1,
  .legal-article h1 {
    font-size: 40px;
  }

  .fact-strip {
    width: var(--content);
  }

  .fact-strip div,
  .fact-strip div:nth-child(2),
  .fact-strip div:nth-last-child(-n + 2),
  .fact-strip div:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .fact-strip div:last-child {
    border-bottom: 0;
  }

  .pricing-hero {
    padding: 30px 0 12px;
  }

  .pricing-hero h1 {
    font-size: 35px;
    line-height: 1.08;
  }

  .pricing-hero .lead {
    margin-top: 12px;
    font-size: 15px;
    line-height: 1.4;
  }

  .trust-strip {
    grid-template-columns: repeat(2, 1fr);
    width: var(--content);
    margin: 12px auto 18px;
  }

  .trust-strip div {
    min-height: 86px;
    padding: 12px 14px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  .trust-strip div:nth-child(2),
  .trust-strip div:last-child {
    border-right: 0;
  }

  .trust-strip div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .trust-strip span {
    font-size: 12px;
    line-height: 1.35;
  }

  .legal-article {
    order: -1;
  }

  .legal-toc {
    order: 0;
  }

  .legal-summary {
    order: 1;
  }

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

  .order-heading,
  .order-lines div {
    display: grid;
  }

  .order-lines dd {
    text-align: left;
  }

  .media-frame {
    min-height: 300px;
  }

  .legal-page {
    padding-top: 34px;
  }

  .legal-tabs {
    grid-template-columns: 1fr;
  }

  .cta-band {
    margin-bottom: 42px;
    padding: 28px;
  }

  .icp {
    white-space: normal;
  }
}