:root {
  color-scheme: light;
  --paper: #f7f2e8;
  --paper-soft: #fbf8f2;
  --paper-deep: #eee5d3;
  --surface: #fffdf8;
  --ink: #20231f;
  --ink-soft: #545a50;
  --ink-muted: #777d72;
  --line: rgba(49, 58, 45, 0.14);
  --moss: #718a57;
  --moss-deep: #405936;
  --moss-soft: #dfe8d6;
  --amber: #d7a83d;
  --amber-soft: #f3e3b5;
  --night: #263027;
  --shadow-sm: 0 14px 40px rgba(52, 53, 42, 0.08);
  --shadow-lg: 0 34px 90px rgba(48, 50, 37, 0.16);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --radius-pill: 999px;
  --shell: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper-soft);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: #fff;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  border-bottom: 1px solid rgba(49, 58, 45, 0.08);
  background: rgba(247, 242, 232, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  display: grid;
  min-height: 82px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 11px;
  border-radius: var(--radius-pill);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.brand-name {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: var(--ink-soft);
  font-size: 14px;
}

.site-nav a,
.footer-links a {
  position: relative;
  border-radius: 6px;
}

.site-nav a::after,
.footer-links a::after {
  position: absolute;
  right: 0;
  bottom: -5px;
  left: 0;
  height: 1px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.header-download {
  justify-self: end;
  padding: 11px 18px;
  border: 1px solid rgba(32, 35, 31, 0.7);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 650;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.header-download:hover {
  background: var(--ink);
  color: #fff;
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: 830px;
  overflow: hidden;
  padding: 150px 0 96px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.18), transparent 48%),
    var(--paper);
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--line);
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(450px, 0.88fr);
  align-items: center;
  gap: 72px;
}

.hero-copy {
  padding: 38px 0 48px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 20px;
  color: var(--moss-deep);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 6px rgba(215, 168, 61, 0.14);
}

.hero h1,
.section-heading h2,
.feature-copy h3,
.feature-card h3,
.principle-copy h2,
.download-copy h2,
.faq-heading h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(58px, 7vw, 92px);
}

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

.hero-lede {
  max-width: 590px;
  margin: 32px 0 0;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 700;
  line-height: 1;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease;
}

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

.button-primary {
  background: var(--moss-deep);
  box-shadow: 0 12px 24px rgba(64, 89, 54, 0.18);
  color: #fff;
}

.button-primary:hover {
  box-shadow: 0 16px 34px rgba(64, 89, 54, 0.26);
}

.button-secondary {
  border-color: rgba(32, 35, 31, 0.26);
  background: rgba(255, 255, 255, 0.36);
}

.button-secondary:hover {
  border-color: rgba(32, 35, 31, 0.55);
  background: rgba(255, 255, 255, 0.68);
}

.button-arrow {
  font-size: 18px;
  font-weight: 500;
}

[data-download-link][aria-disabled="true"] {
  cursor: not-allowed;
}

.download-meta {
  margin: 13px 0 0;
  color: var(--ink-muted);
  font-size: 13px;
}

.hero-assurances {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-assurances li {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.3);
  color: var(--ink-soft);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  min-height: 600px;
}

.phone {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 9px solid #252a25;
  border-radius: 48px;
  background: #f7f7f5;
  box-shadow: var(--shadow-lg);
}

.phone::after {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 39px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.14);
  content: "";
  pointer-events: none;
}

.phone img {
  width: 100%;
  height: auto;
}

.phone-speaker {
  position: absolute;
  z-index: 3;
  top: 13px;
  left: 50%;
  width: 80px;
  height: 22px;
  border-radius: var(--radius-pill);
  background: #161a16;
  transform: translateX(-50%);
}

.phone-hero {
  width: 340px;
  height: 690px;
  margin: -8px auto 0;
}

.phone-hero img {
  min-height: 100%;
  object-fit: cover;
  object-position: top;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(113, 138, 87, 0.24);
  border-radius: 50%;
}

.orbit-one {
  inset: 26px -24px auto 28px;
  height: 500px;
  transform: rotate(-12deg);
}

.orbit-two {
  inset: 95px 8px auto 66px;
  height: 420px;
  border-color: rgba(215, 168, 61, 0.24);
  transform: rotate(22deg);
}

.floating-note {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  border: 1px solid rgba(47, 57, 44, 0.12);
  background: rgba(255, 253, 248, 0.9);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.note-local {
  top: 116px;
  left: -12px;
  gap: 12px;
  padding: 14px 18px 14px 14px;
  border-radius: 18px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.note-local strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
}

.note-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--moss-soft);
  color: var(--moss-deep);
  font-weight: 800;
}

.note-format {
  right: -18px;
  bottom: 72px;
  gap: 5px;
  padding: 13px;
  border-radius: 16px;
}

.format-stack {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 12px;
  background: var(--paper-deep);
  color: var(--moss-deep);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.format-stack:nth-child(2) {
  background: var(--moss-soft);
}

.format-stack:nth-child(3) {
  background: var(--amber-soft);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.6;
}

.hero-glow-left {
  top: 190px;
  left: -180px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(215, 168, 61, 0.2), transparent 70%);
}

.hero-glow-right {
  right: -180px;
  bottom: -180px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(113, 138, 87, 0.2), transparent 70%);
}

.format-ribbon {
  padding: 58px 0;
  background: var(--surface);
}

.format-inner {
  display: grid;
  grid-template-columns: 0.68fr 1.32fr;
  align-items: center;
  gap: 70px;
}

.format-inner h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  font-size: 30px;
  letter-spacing: -0.035em;
}

.format-inner .section-kicker {
  margin-bottom: 8px;
}

.format-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.format-list li {
  min-width: 80px;
  padding: 12px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.feature-section {
  padding: 124px 0;
  background: var(--paper-soft);
}

.section-heading {
  display: grid;
  max-width: 850px;
  grid-template-columns: 1.1fr 0.9fr;
  column-gap: 72px;
  align-items: end;
  margin-bottom: 74px;
}

.section-heading .section-kicker {
  grid-column: 1 / -1;
}

.section-heading h2 {
  font-size: clamp(42px, 5vw, 64px);
}

.section-heading > p:last-child {
  margin: 0 0 7px;
  color: var(--ink-soft);
  font-size: 17px;
}

.feature {
  display: grid;
  overflow: hidden;
  min-height: 660px;
  grid-template-columns: 0.82fr 1.18fr;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.feature-copy {
  align-self: center;
  padding: 68px 48px 68px 60px;
}

.feature-number {
  display: inline-block;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.feature-label {
  margin: 24px 0 12px;
  color: var(--moss-deep);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.15em;
}

.feature-copy h3,
.feature-card h3 {
  font-size: clamp(38px, 4vw, 56px);
}

.feature-copy > p:not(.feature-label) {
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
}

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

.check-list li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14px;
}

.check-list li::before {
  position: absolute;
  top: 18px;
  left: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--moss);
  content: "";
}

.feature-stage {
  position: relative;
  min-height: 660px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.26), transparent 44%),
    #dce6d3;
}

.feature-stage::before {
  position: absolute;
  inset: 36px 40px;
  border: 1px solid rgba(64, 89, 54, 0.15);
  border-radius: 50%;
  content: "";
  transform: rotate(-16deg);
}

.phone-feature {
  position: absolute;
  top: 82px;
  right: 84px;
  width: 315px;
  height: 680px;
}

.phone-feature img {
  min-height: 100%;
  object-fit: cover;
  object-position: top;
}

.paper-quote {
  position: absolute;
  z-index: 4;
  top: 112px;
  left: 48px;
  width: 180px;
  padding: 24px;
  border: 1px solid rgba(52, 66, 47, 0.12);
  border-radius: 20px;
  background: rgba(255, 253, 248, 0.84);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.paper-quote span {
  color: var(--amber);
  font-family: Georgia, serif;
  font-size: 48px;
  line-height: 0.7;
}

.paper-quote p {
  margin: 14px 0 0;
  font-family: "Songti SC", "STSong", serif;
  font-size: 18px;
  line-height: 1.65;
}

.feature-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.feature-card {
  display: flex;
  min-height: 730px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.feature-card-copy {
  position: relative;
  z-index: 2;
  padding: 50px 50px 34px;
}

.feature-card h3 {
  margin-top: 10px;
  font-size: clamp(36px, 3.8vw, 51px);
}

.feature-card-copy > p:last-child {
  margin: 24px 0 0;
  color: var(--ink-soft);
}

.settings-preview {
  position: relative;
  min-height: 430px;
  flex: 1;
  overflow: hidden;
  background: #ebe8df;
}

.phone-card {
  position: absolute;
  top: 44px;
  left: 50%;
  width: 290px;
  height: 630px;
  transform: translateX(-50%);
}

.phone-card img {
  min-height: 100%;
  object-fit: cover;
  object-position: top;
}

.theme-swatches {
  position: absolute;
  z-index: 4;
  right: 32px;
  bottom: 28px;
  display: flex;
  gap: 7px;
  padding: 10px;
  border: 1px solid rgba(47, 57, 44, 0.12);
  border-radius: var(--radius-pill);
  background: rgba(255, 253, 248, 0.92);
  box-shadow: var(--shadow-sm);
}

.swatch {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(32, 35, 31, 0.14);
  border-radius: 50%;
}

.swatch-paper {
  background: #f8f4ec;
}

.swatch-wheat {
  background: #f0e0bb;
}

.swatch-green {
  background: #dce7d9;
}

.swatch-night {
  background: #263027;
}

.card-tools {
  background:
    radial-gradient(circle at 88% 74%, rgba(215, 168, 61, 0.16), transparent 30%),
    var(--night);
  color: #f9f6ed;
}

.card-tools .feature-label {
  color: #bed1aa;
}

.card-tools .feature-card-copy > p:last-child {
  color: rgba(249, 246, 237, 0.68);
}

.tool-board {
  display: grid;
  gap: 12px;
  margin-top: auto;
  padding: 16px 42px 48px;
}

.tool-row {
  display: grid;
  min-height: 74px;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 16px;
  padding: 13px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
  color: rgba(249, 246, 237, 0.66);
  font-size: 13px;
}

.tool-row strong {
  display: block;
  margin-bottom: 1px;
  color: #fffdf8;
  font-size: 15px;
}

.tool-index {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
  background: rgba(190, 209, 170, 0.14);
  color: #c9dfb2;
  font-size: 12px;
  font-weight: 800;
}

.principle-section {
  padding: 120px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.principle-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  align-items: center;
  gap: 100px;
}

.principle-mark {
  position: relative;
  display: grid;
  min-height: 430px;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 70% 24%, rgba(215, 168, 61, 0.18), transparent 18%),
    linear-gradient(145deg, #f1eadc, #dde6d4);
}

.principle-mark::before,
.principle-mark::after {
  position: absolute;
  width: 330px;
  height: 330px;
  border: 1px solid rgba(64, 89, 54, 0.18);
  border-radius: 50%;
  content: "";
}

.principle-mark::before {
  transform: translate(-90px, 68px);
}

.principle-mark::after {
  transform: translate(95px, -70px);
}

.principle-mark img {
  position: relative;
  z-index: 2;
  width: 230px;
  height: 230px;
  border-radius: 48px;
  box-shadow: var(--shadow-lg);
}

.principle-copy {
  max-width: 610px;
}

.principle-copy h2,
.download-copy h2,
.faq-heading h2 {
  font-size: clamp(42px, 5vw, 64px);
}

.principle-copy > p:not(.section-kicker) {
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.principle-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.principle-points div {
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper-soft);
}

.principle-points strong,
.principle-points span {
  display: block;
}

.principle-points strong {
  margin-bottom: 7px;
}

.principle-points span {
  color: var(--ink-muted);
  font-size: 13px;
}

.download-section {
  position: relative;
  overflow: hidden;
  padding: 108px 0;
  background: var(--moss-deep);
  color: #fffdf7;
}

.download-section::before,
.download-section::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 50%;
  content: "";
}

.download-section::before {
  top: -190px;
  right: -100px;
  width: 520px;
  height: 520px;
}

.download-section::after {
  bottom: -260px;
  left: -150px;
  width: 600px;
  height: 600px;
}

.download-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 150px 1fr auto;
  align-items: center;
  gap: 48px;
}

.download-icon-wrap {
  display: grid;
  width: 136px;
  height: 136px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.08);
}

.download-icon-wrap img {
  width: 104px;
  height: 104px;
  border-radius: 24px;
}

.download-copy .section-kicker {
  color: #c9dfb2;
}

.download-copy h2 {
  font-size: clamp(42px, 4.8vw, 62px);
}

.download-copy > p:last-child {
  max-width: 520px;
  margin: 23px 0 0;
  color: rgba(255, 253, 247, 0.68);
}

.download-action {
  min-width: 270px;
  text-align: center;
}

.button-download {
  width: 100%;
  background: #fffdf7;
  color: var(--moss-deep);
  box-shadow: 0 18px 40px rgba(15, 24, 13, 0.18);
}

.download-action p {
  margin: 13px 0 0;
  color: rgba(255, 253, 247, 0.66);
  font-size: 12px;
}

.download-action .download-safety {
  color: rgba(255, 253, 247, 0.48);
}

.faq-section {
  padding: 124px 0;
  background: var(--paper-soft);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 100px;
}

.faq-heading {
  position: sticky;
  top: 112px;
  align-self: start;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  font-size: 19px;
  font-weight: 700;
  list-style: none;
}

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

.faq-list summary::after {
  display: grid;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--moss-deep);
  content: "+";
  font-size: 20px;
  font-weight: 400;
  transition: transform 160ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-list details p {
  max-width: 650px;
  margin: -5px 54px 32px 0;
  color: var(--ink-soft);
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 11px;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand span {
  color: var(--ink-muted);
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 24px;
  color: var(--ink-soft);
  font-size: 13px;
}

.copyright {
  justify-self: end;
  margin: 0;
  color: var(--ink-muted);
  font-size: 12px;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(215, 168, 61, 0.55);
  outline-offset: 5px;
}

@media (max-width: 1040px) {
  .hero-grid {
    grid-template-columns: 1fr 420px;
    gap: 30px;
  }

  .note-local {
    left: -26px;
  }

  .feature {
    grid-template-columns: 0.92fr 1.08fr;
  }

  .phone-feature {
    right: 48px;
  }

  .paper-quote {
    left: 28px;
  }

  .feature-card-copy {
    padding-inline: 38px;
  }

  .download-inner {
    grid-template-columns: 120px 1fr;
  }

  .download-icon-wrap {
    width: 116px;
    height: 116px;
  }

  .download-action {
    grid-column: 2;
    width: 310px;
  }
}

@media (max-width: 860px) {
  :root {
    --shell: min(100% - 36px, 700px);
  }

  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .hero {
    padding-top: 130px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .hero-copy {
    text-align: center;
  }

  .eyebrow,
  .hero-actions,
  .hero-assurances {
    justify-content: center;
  }

  .hero-lede {
    margin-inline: auto;
  }

  .hero-visual {
    min-height: 630px;
  }

  .phone-hero {
    height: 640px;
  }

  .note-local {
    left: calc(50% - 290px);
  }

  .note-format {
    right: calc(50% - 290px);
  }

  .format-inner,
  .section-heading,
  .feature,
  .feature-pair,
  .principle-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .format-inner {
    gap: 28px;
  }

  .format-list {
    justify-content: flex-start;
  }

  .section-heading {
    gap: 26px;
  }

  .section-heading .section-kicker {
    grid-column: auto;
    margin-bottom: 0;
  }

  .feature {
    min-height: auto;
  }

  .feature-copy {
    padding: 54px 48px;
  }

  .feature-stage {
    min-height: 610px;
  }

  .phone-feature {
    right: 50%;
    transform: translateX(50%);
  }

  .paper-quote {
    left: calc(50% - 300px);
  }

  .feature-card {
    min-height: 720px;
  }

  .principle-grid {
    gap: 60px;
  }

  .principle-copy {
    max-width: none;
  }

  .faq-grid {
    gap: 60px;
  }

  .faq-heading {
    position: static;
  }

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

  .footer-links {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: center;
  }
}

@media (max-width: 620px) {
  :root {
    --shell: calc(100vw - 28px);
    --radius-lg: 28px;
  }

  html {
    scroll-padding-top: 78px;
  }

  .site-header {
    position: absolute;
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-name {
    font-size: 17px;
  }

  .header-download {
    padding: 9px 14px;
    font-size: 12px;
  }

  .hero {
    min-height: auto;
    padding: 112px 0 70px;
  }

  .hero-copy {
    padding-top: 18px;
  }

  .eyebrow {
    font-size: 11px;
  }

  .hero h1 {
    font-size: clamp(50px, 16vw, 68px);
  }

  .hero-lede {
    margin-top: 26px;
    font-size: 16px;
    line-height: 1.8;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-assurances {
    gap: 6px;
  }

  .hero-assurances li {
    font-size: 10px;
  }

  .hero-visual {
    min-height: 570px;
    margin-top: 18px;
  }

  .phone-hero {
    width: 290px;
    height: 590px;
  }

  .phone {
    border-width: 7px;
    border-radius: 40px;
  }

  .phone::after {
    border-radius: 33px;
  }

  .phone-speaker {
    top: 10px;
    width: 65px;
    height: 18px;
  }

  .orbit-one {
    inset-inline: -40px;
  }

  .orbit-two {
    inset-inline: -10px;
  }

  .note-local {
    top: 88px;
    left: -4px;
    padding: 10px 12px 10px 10px;
  }

  .note-local strong {
    font-size: 12px;
  }

  .note-local > span:last-child {
    font-size: 10px;
  }

  .note-icon {
    width: 28px;
    height: 28px;
  }

  .note-format {
    right: -4px;
    bottom: 42px;
  }

  .format-stack {
    width: 37px;
    height: 37px;
    font-size: 8px;
  }

  .format-ribbon {
    padding: 48px 0;
  }

  .format-inner h2 {
    font-size: 27px;
  }

  .format-list {
    gap: 7px;
  }

  .format-list li {
    min-width: 70px;
    padding: 10px 13px;
    font-size: 11px;
  }

  .feature-section,
  .principle-section,
  .faq-section {
    padding: 84px 0;
  }

  .section-heading {
    margin-bottom: 46px;
  }

  .section-heading h2,
  .principle-copy h2,
  .faq-heading h2 {
    font-size: 42px;
  }

  .section-heading > p:last-child,
  .principle-copy > p:not(.section-kicker) {
    font-size: 15px;
  }

  .feature-copy {
    padding: 44px 28px 48px;
  }

  .feature-copy h3,
  .feature-card h3 {
    font-size: 40px;
  }

  .feature-stage {
    min-height: 530px;
  }

  .feature-stage::before {
    inset-inline: -70px;
  }

  .phone-feature {
    top: 64px;
    width: 270px;
    height: 580px;
  }

  .paper-quote {
    top: 92px;
    left: 12px;
    width: 140px;
    padding: 18px;
  }

  .paper-quote p {
    font-size: 15px;
  }

  .feature-card {
    min-height: 680px;
  }

  .feature-card-copy {
    padding: 42px 28px 28px;
  }

  .phone-card {
    width: 260px;
    height: 570px;
  }

  .tool-board {
    padding: 12px 22px 32px;
  }

  .tool-row {
    grid-template-columns: 38px 1fr;
    padding-inline: 14px;
  }

  .principle-mark {
    min-height: 340px;
  }

  .principle-mark img {
    width: 180px;
    height: 180px;
    border-radius: 40px;
  }

  .principle-points {
    grid-template-columns: 1fr;
  }

  .download-section {
    padding: 82px 0;
  }

  .download-inner {
    grid-template-columns: 1fr;
    gap: 34px;
    text-align: center;
  }

  .download-icon-wrap {
    justify-self: center;
  }

  .download-copy h2 {
    font-size: 44px;
  }

  .download-copy > p:last-child {
    margin-inline: auto;
  }

  .download-action {
    grid-column: auto;
    width: 100%;
    min-width: 0;
  }

  .faq-list summary {
    min-height: 84px;
    font-size: 17px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .footer-links {
    grid-column: auto;
    grid-row: auto;
    flex-wrap: wrap;
  }

  .copyright {
    justify-self: center;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: rgba(25, 30, 23, 0.34);
    --ink-soft: #363b34;
    --ink-muted: #4e544b;
  }
}