@charset "UTF-8";

:root {
  --ink: #17243d;
  --ink-soft: #56657d;
  --line: #cbd9e5;
  --paper: #f7fbfd;
  --white: #ffffff;
  --blue: #44a6d7;
  --blue-deep: #247ba6;
  --blue-pale: #e9f7ff;
  --lime: #e8f15b;
  --coral: #ff6c61;
  --header-height: 76px;
  --radius: 5px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  min-width: 320px;
  margin: 0;
  padding-top: var(--header-height);
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

body.nav-open {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

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

button {
  color: inherit;
}

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

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.section-inner,
.hero-inner,
.footer-inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.brand img {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.25;
}

.brand-copy strong {
  font-size: 19px;
  color: var(--ink);
}

.brand-copy span {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 12px;
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav a {
  position: relative;
  display: block;
  padding: 27px 0 23px;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
}

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

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

.header-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 146px;
  min-height: 44px;
  padding: 10px 18px;
  color: #fff;
  background: var(--ink);
  border-radius: var(--radius);
  font-weight: 700;
  white-space: nowrap;
}

.header-download:hover {
  background: var(--blue-deep);
}

.mobile-download-text {
  display: none;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: #fff;
}

.menu-toggle i,
.menu-toggle i::before,
.menu-toggle i::after {
  position: absolute;
  width: 20px;
  height: 2px;
  content: "";
  background: var(--ink);
}

.menu-toggle i {
  position: relative;
  display: block;
  margin: auto;
}

.menu-toggle i::before {
  left: 0;
  top: -6px;
}

.menu-toggle i::after {
  left: 0;
  top: 6px;
}

.section-shell {
  position: relative;
  padding: 100px 0;
}

.hero {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 64px 0;
  overflow: hidden;
  background-color: #f4fbff;
  background-image: linear-gradient(rgba(68, 166, 215, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(68, 166, 215, .09) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hero::before {
  position: absolute;
  top: -110px;
  right: -130px;
  width: 520px;
  height: 520px;
  content: "";
  border: 84px solid rgba(232, 241, 91, .58);
  border-radius: 50%;
}

.hero::after {
  position: absolute;
  bottom: -130px;
  left: -120px;
  width: 420px;
  height: 260px;
  content: "";
  background: rgba(68, 166, 215, .14);
  transform: rotate(-8deg);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
  gap: 86px;
}

.hero-copy {
  max-width: 690px;
}

.eyebrow,
.section-index {
  color: var(--blue-deep);
  font-weight: 800;
  letter-spacing: .18em;
  font-size: 12px;
}

.eyebrow span {
  display: inline-block;
  margin-right: 11px;
  padding: 4px 8px;
  color: var(--ink);
  background: var(--lime);
  letter-spacing: .1em;
}

.hero h1 {
  margin-top: 14px;
  color: var(--ink);
  font-size: clamp(76px, 7.5vw, 118px);
  line-height: .92;
  letter-spacing: -.075em;
  white-space: nowrap;
}

.hero h2 {
  margin-top: 28px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.25;
  letter-spacing: -.035em;
}

.hero-intro {
  max-width: 650px;
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.95;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 27px;
}

.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .82);
  font-weight: 700;
}

.hero-download {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: 29px;
}

.hero-download a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 230px;
  min-height: 56px;
  padding: 14px 24px;
  color: #fff;
  background: var(--blue-deep);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 800;
}

.hero-download a:hover {
  background: var(--ink);
}

.age-label {
  display: block;
  margin-top: 11px;
  color: var(--ink-soft);
  font-size: 12px;
}

.hero-device {
  justify-self: end;
  width: 360px;
}

.phone-shell {
  width: 334px;
  margin-left: auto;
  padding: 12px;
  border: 10px solid #111722;
  border-radius: 42px;
  background: #111722;
}

.phone-screen {
  position: relative;
  min-height: 600px;
  padding: 18px 18px 20px;
  overflow: hidden;
  background: #fff;
  border-radius: 25px;
}

.phone-screen::before {
  position: absolute;
  top: -1px;
  left: 50%;
  width: 112px;
  height: 25px;
  content: "";
  background: #111722;
  border-radius: 0 0 16px 16px;
  transform: translateX(-50%);
}

.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 1px 0;
  font-size: 12px;
  font-weight: 800;
}

.status-signals {
  letter-spacing: 2px;
}

.auth-brand {
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 9px;
  margin-top: 38px;
}

.auth-brand img {
  grid-row: 1 / 3;
  width: 38px;
  height: 38px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.auth-brand strong {
  font-size: 15px;
  line-height: 1.15;
}

.auth-brand span {
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.2;
}

.auth-heading {
  margin-top: 24px;
}

.auth-heading > span {
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
}

.auth-heading h3 {
  margin-top: 6px;
  font-size: 24px;
  line-height: 1.2;
}

.auth-heading p {
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 12px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 21px;
  border-bottom: 1px solid var(--line);
}

.auth-tabs button {
  position: relative;
  padding: 10px 5px;
  border: 0;
  background: transparent;
  font-weight: 700;
  cursor: pointer;
}

.auth-tabs button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
}

.auth-tabs button.is-active {
  color: var(--blue-deep);
}

.auth-tabs button.is-active::after {
  transform: scaleX(1);
}

.auth-panel {
  display: none;
  margin-top: 16px;
}

.auth-panel.is-active {
  display: block;
}

.auth-panel > label {
  display: block;
  margin-top: 11px;
}

.auth-panel > label > span:first-child {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  font-weight: 800;
}

.field-control {
  display: flex;
  align-items: center;
  min-height: 45px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fbfd;
}

.field-control:focus-within {
  border-color: var(--blue);
  background: #fff;
}

.field-control input {
  width: 100%;
  min-width: 0;
  padding: 10px;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 12px;
}

.password-toggle {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.auth-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 12px;
}

.auth-options label {
  display: flex;
  align-items: center;
  gap: 5px;
}

.auth-options button {
  padding: 0;
  border: 0;
  color: var(--blue-deep);
  background: transparent;
}

.auth-submit {
  width: 100%;
  min-height: 46px;
  margin-top: 16px;
  padding: 10px;
  border: 0;
  border-radius: var(--radius);
  color: #fff;
  background: var(--ink);
  font-weight: 800;
  cursor: pointer;
}

.auth-submit:hover {
  background: var(--blue-deep);
}

.auth-feedback {
  margin-top: 12px;
  color: var(--ink-soft);
  text-align: center;
  font-size: 12px;
}

.section-heading {
  margin-bottom: 42px;
}

.split-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
}

.section-heading h2 {
  margin-top: 6px;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.1;
  letter-spacing: -.055em;
}

.split-heading > p {
  max-width: 430px;
  padding-bottom: 7px;
  color: var(--ink-soft);
}

.boundary {
  background: #fff;
}

.boundary-board {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
}

.boundary-options {
  padding: 22px;
  background: var(--ink);
}

.boundary-option {
  width: 100%;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 13px;
  min-height: 96px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius);
  color: #fff;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.boundary-option + .boundary-option {
  margin-top: 12px;
}

.boundary-option.is-active {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.option-number {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-weight: 800;
}

.boundary-option strong,
.boundary-option small {
  display: block;
}

.boundary-option strong {
  font-size: 17px;
}

.boundary-option small {
  margin-top: 3px;
  color: inherit;
  opacity: .76;
  font-size: 12px;
}

.boundary-option em {
  font-style: normal;
  font-size: 12px;
}

.boundary-preview {
  padding: 36px;
  background: var(--blue-pale);
}

.preview-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
}

.preview-topline strong {
  color: var(--blue-deep);
}

.preview-work {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 30px;
  align-items: center;
  padding: 36px 0;
}

.work-mark {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 180px;
  padding: 24px;
  overflow: hidden;
  color: #fff;
  background: var(--blue-deep);
  border-radius: var(--radius);
}

.work-mark::after {
  position: absolute;
  right: -38px;
  bottom: -38px;
  width: 120px;
  height: 120px;
  content: "";
  border: 25px solid var(--lime);
  border-radius: 50%;
}

.work-mark span,
.work-mark strong {
  position: relative;
  z-index: 1;
  line-height: 1;
}

.work-mark span {
  font-size: 24px;
}

.work-mark strong {
  margin-top: 3px;
  font-size: 34px;
}

.work-copy > span {
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

.work-copy h3 {
  margin-top: 8px;
  font-size: 28px;
  line-height: 1.3;
}

.work-copy p {
  margin-top: 13px;
  color: var(--ink-soft);
}

.preview-meta {
  display: flex;
  gap: 12px;
  padding-top: 19px;
  border-top: 1px solid var(--line);
}

.preview-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12px;
}

.preview-meta b {
  font-weight: 700;
}

.responses {
  background: var(--blue-pale);
}

.response-layout {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: 24px;
}

.response-letter,
.reaction-desk {
  min-height: 360px;
  border-radius: var(--radius);
}

.response-letter {
  position: relative;
  padding: 48px;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: #fff;
}

.response-letter::before,
.response-letter::after {
  position: absolute;
  content: "";
  background: var(--coral);
  transform: rotate(-35deg);
}

.response-letter::before {
  right: -58px;
  top: 28px;
  width: 210px;
  height: 18px;
}

.response-letter::after {
  right: -80px;
  top: 62px;
  width: 260px;
  height: 8px;
}

.letter-stamp {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  margin-left: auto;
  border: 2px dashed var(--blue-deep);
  color: var(--blue-deep);
  text-align: center;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
}

.response-letter > p {
  margin-top: 24px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 800;
}

.response-letter h3 {
  margin-top: 17px;
  font-size: 25px;
  line-height: 1.55;
}

.response-letter > span {
  position: absolute;
  right: 48px;
  bottom: 38px;
  color: var(--ink-soft);
  font-size: 12px;
}

.reaction-desk {
  padding: 34px;
  color: #fff;
  background: var(--ink);
}

.reaction-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .18);
}

.reaction-heading span {
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
}

.reaction-heading h3 {
  margin-top: 4px;
  font-size: 28px;
}

.reaction-heading > strong {
  font-size: 13px;
}

.reaction-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 28px;
}

.reaction-buttons button {
  display: flex;
  min-height: 150px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: var(--radius);
  color: #fff;
  background: transparent;
  cursor: pointer;
}

.reaction-buttons button:hover,
.reaction-buttons button.is-picked {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

.reaction-buttons span {
  font-size: 30px;
  line-height: 1;
}

.reaction-buttons strong {
  font-size: 13px;
}

.reaction-buttons small {
  font-size: 12px;
}

.reaction-feedback {
  margin-top: 20px;
  color: rgba(255, 255, 255, .72);
  font-size: 12px;
}

.screens {
  background: #fff;
}

.screenshot-track {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-color: var(--blue) #eaf0f4;
  scrollbar-width: thin;
}

.screenshot-track figure {
  flex: 0 0 250px;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: #fff;
}

.screenshot-media {
  width: 250px;
  height: 450px;
  padding: 8px;
  background: #eef7fb;
}

.screenshot-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screenshot-track figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 2px 12px;
  min-height: 86px;
  padding: 17px;
  border-top: 1px solid var(--ink);
}

.screenshot-track figcaption span {
  grid-row: 1 / 3;
  color: var(--coral);
  font-weight: 900;
}

.screenshot-track figcaption strong {
  font-size: 16px;
}

.screenshot-track figcaption small {
  color: var(--ink-soft);
  font-size: 12px;
}

.guide {
  background: #f5f0e8;
}

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

.faq-item {
  border-bottom: 1px solid #cfc5b8;
  background: rgba(255, 255, 255, .54);
}

.faq-item > button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 18px 22px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.faq-item > button span {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 16px;
  font-weight: 800;
}

.faq-item > button b {
  color: var(--blue-deep);
  font-size: 12px;
}

.faq-item > button > i,
.official-site summary > i {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
}

.faq-item > button > i::before,
.faq-item > button > i::after,
.official-site summary > i::before,
.official-site summary > i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 1px;
  content: "";
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.faq-item > button > i::after,
.official-site summary > i::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open > button > i::after,
.official-site[open] summary > i::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
}

.faq-answer p {
  min-height: 0;
  overflow: hidden;
  padding: 0 22px;
  color: var(--ink-soft);
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
}

.faq-item.is-open .faq-answer p {
  padding-bottom: 22px;
}

.official-site {
  margin-top: 22px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: #fff;
}

.official-site summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 17px 22px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 800;
}

.official-site summary::-webkit-details-marker {
  display: none;
}

.official-site summary span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.official-site > div {
  padding: 0 22px 20px 56px;
}

.official-site a {
  color: var(--blue-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.voices {
  background: var(--ink);
  color: #fff;
}

.voices .section-index {
  color: var(--lime);
}

.voices .split-heading > p {
  color: rgba(255, 255, 255, .68);
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.voice-card {
  min-height: 278px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  color: var(--ink);
  background: #fff;
  border-radius: var(--radius);
}

.voice-card header {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: center;
  gap: 10px;
  padding-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.voice-card header strong {
  font-size: 14px;
}

.voice-card header span {
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
}

.voice-card p {
  margin-top: 18px;
  line-height: 1.9;
}

.voice-card time {
  margin-top: auto;
  padding-top: 18px;
  color: var(--ink-soft);
  text-align: right;
  font-size: 12px;
}

.download-section {
  padding: 72px 0;
  background: var(--blue-pale);
}

.download-pass {
  display: grid;
  grid-template-columns: 210px 1fr 260px;
  min-height: 190px;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: #fff;
}

.pass-number {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: var(--lime);
  border-right: 1px dashed var(--ink);
}

.pass-number span {
  font-size: 64px;
  font-weight: 900;
  line-height: 1;
}

.pass-number small {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .15em;
}

.pass-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px 42px;
}

.pass-copy p {
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .15em;
}

.pass-copy h2 {
  margin-top: 7px;
  font-size: 30px;
  line-height: 1.3;
}

.pass-copy > span {
  margin-top: 7px;
  color: var(--ink-soft);
}

.download-pass > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 34px;
  color: #fff;
  background: var(--blue-deep);
  font-size: 16px;
  font-weight: 800;
}

.download-pass > a:hover {
  background: var(--ink);
}

.site-footer {
  padding: 48px 0 24px;
  color: #fff;
  background: #101b30;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, .25);
}

.footer-brand .brand-copy strong,
.footer-brand .brand-copy span {
  color: #fff;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 24px;
}

.footer-nav a {
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
}

.footer-nav a:hover {
  color: var(--lime);
}

.copyright {
  padding-top: 23px;
  color: rgba(255, 255, 255, .68);
  text-align: center;
  font-size: 12px;
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  width: 50px;
  height: 50px;
  padding: 0;
  border: 1px solid var(--ink);
  border-radius: 50%;
  color: #fff;
  background: var(--blue-deep);
  opacity: 0;
  visibility: hidden;
  cursor: pointer;
  transform: translateY(12px);
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--ink);
}

.icon-download-light,
.icon-eye,
.icon-chat,
.icon-heart,
.icon-mail,
.icon-lock,
.icon-user,
.icon-globe,
.icon-avatar,
.icon-arrow,
.icon-top {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.icon-download-light { background-image: url("../icons/download-light.svg"); }
.icon-eye { background-image: url("../icons/eye.svg"); }
.icon-chat { background-image: url("../icons/chat.svg"); }
.icon-heart { background-image: url("../icons/heart.svg"); }
.icon-mail { background-image: url("../icons/mail.svg"); }
.icon-lock { background-image: url("../icons/lock.svg"); }
.icon-user { background-image: url("../icons/user.svg"); }
.icon-globe { background-image: url("../icons/globe.svg"); }
.icon-avatar { background-image: url("../icons/avatar.svg"); }
.icon-arrow { background-image: url("../icons/arrow.svg"); }
.icon-top { background-image: url("../icons/top.svg"); }

.field-control > i {
  width: 18px;
  height: 18px;
  flex-basis: 18px;
}

.voice-card .icon-avatar {
  width: 42px;
  height: 42px;
  flex-basis: 42px;
}

@media (max-width: 1080px) {
  .site-nav ul {
    gap: 19px;
  }

  .hero-inner {
    gap: 42px;
  }

  .hero h1 {
    font-size: 82px;
  }

  .screenshot-track {
    justify-content: flex-start;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 68px;
  }

  .header-inner,
  .section-inner,
  .hero-inner,
  .footer-inner {
    width: min(100% - 28px, 720px);
  }

  .site-header {
    height: var(--header-height);
  }

  .brand img {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
  }

  .brand-copy strong {
    font-size: 16px;
  }

  .brand-copy span {
    font-size: 12px;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    z-index: 999;
    display: none;
    padding: 12px 14px 18px;
    background: #fff;
    border-bottom: 1px solid var(--ink);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    width: min(100%, 720px);
    margin: 0 auto;
    display: grid;
    gap: 0;
  }

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

  .site-nav a {
    padding: 13px 4px;
  }

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

  .header-actions {
    margin-left: auto;
  }

  .desktop-download-text {
    display: none;
  }

  .mobile-download-text {
    display: inline;
  }

  .header-download {
    min-width: auto;
    min-height: 42px;
    padding: 9px 14px;
    font-size: 13px;
  }

  .header-download i {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 70px 0 76px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero-copy {
    max-width: 720px;
    text-align: center;
  }

  .hero h1 {
    font-size: clamp(64px, 17vw, 92px);
  }

  .hero-intro {
    margin-right: auto;
    margin-left: auto;
  }

  .hero-points,
  .hero-download {
    justify-content: center;
    align-items: center;
  }

  .hero-device {
    justify-self: center;
    width: 100%;
  }

  .phone-shell {
    margin: 0 auto;
  }

  .section-shell {
    padding: 78px 0;
  }

  .split-heading {
    align-items: flex-start;
  }

  .boundary-board,
  .response-layout {
    grid-template-columns: 1fr;
  }

  .boundary-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .boundary-option {
    grid-template-columns: 42px 1fr;
  }

  .boundary-option + .boundary-option {
    margin-top: 0;
  }

  .boundary-option em {
    grid-column: 2;
  }

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

  .download-pass {
    grid-template-columns: 160px 1fr;
  }

  .download-pass > a {
    grid-column: 1 / 3;
    min-height: 76px;
  }
}

@media (max-width: 640px) {
  .header-inner,
  .section-inner,
  .hero-inner,
  .footer-inner {
    width: calc(100% - 28px);
  }

  .header-inner {
    gap: 8px;
  }

  .brand {
    gap: 7px;
  }

  .brand img {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .brand-copy span {
    font-size: 12px;
  }

  .header-download {
    padding: 8px 10px;
    min-height: 38px;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }

  .hero {
    padding-top: 54px;
  }

  .eyebrow {
    letter-spacing: .12em;
  }

  .hero h1 {
    font-size: clamp(55px, 19vw, 80px);
    white-space: normal;
  }

  .hero h2 {
    margin-top: 22px;
    font-size: 28px;
  }

  .hero-intro {
    font-size: 14px;
  }

  .hero-points {
    gap: 7px;
  }

  .hero-points span {
    min-height: 38px;
    padding: 7px 9px;
    font-size: 12px;
  }

  .hero-download a {
    width: min(100%, 300px);
  }

  .phone-shell {
    width: min(318px, 100%);
    padding: 9px;
    border-width: 8px;
  }

  .phone-screen {
    min-height: 580px;
    padding: 17px 15px 18px;
  }

  .section-shell {
    padding: 62px 0;
  }

  .split-heading {
    display: block;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .section-heading h2 {
    font-size: 43px;
  }

  .split-heading > p {
    margin-top: 13px;
    padding-bottom: 0;
  }

  .boundary-options {
    grid-template-columns: 1fr;
  }

  .boundary-option + .boundary-option {
    margin-top: 0;
  }

  .boundary-preview {
    padding: 20px;
  }

  .preview-work {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 0;
  }

  .work-mark {
    height: 130px;
  }

  .work-copy h3 {
    font-size: 23px;
  }

  .preview-meta {
    flex-wrap: wrap;
  }

  .response-letter,
  .reaction-desk {
    min-height: 330px;
    padding: 25px;
  }

  .response-letter h3 {
    font-size: 21px;
  }

  .response-letter > span {
    right: 25px;
    bottom: 24px;
  }

  .reaction-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .reaction-buttons {
    grid-template-columns: repeat(2, 1fr);
  }

  .reaction-buttons button {
    min-height: 112px;
  }

  .screenshot-track {
    margin-right: -14px;
    margin-left: -14px;
    padding: 0 14px 12px;
    scroll-snap-type: x mandatory;
  }

  .screenshot-track figure {
    scroll-snap-align: start;
  }

  .faq-item > button {
    min-height: 68px;
    padding: 16px 14px;
  }

  .faq-item > button span {
    align-items: flex-start;
    gap: 13px;
    font-size: 14px;
  }

  .faq-answer p {
    padding-right: 14px;
    padding-left: 42px;
  }

  .official-site summary {
    padding: 15px;
  }

  .official-site > div {
    padding-right: 15px;
    padding-left: 46px;
  }

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

  .voice-card {
    min-height: 255px;
  }

  .voice-card header {
    grid-template-columns: 40px 1fr;
  }

  .voice-card header span {
    grid-column: 2;
  }

  .download-section {
    padding: 52px 0;
  }

  .download-pass {
    grid-template-columns: 1fr;
  }

  .pass-number {
    min-height: 105px;
    border-right: 0;
    border-bottom: 1px dashed var(--ink);
  }

  .pass-number span {
    font-size: 48px;
  }

  .pass-copy {
    padding: 28px 22px;
    text-align: center;
  }

  .pass-copy h2 {
    font-size: 25px;
  }

  .download-pass > a {
    grid-column: auto;
    min-height: 70px;
    padding: 22px;
  }

  .footer-top {
    flex-direction: column;
    text-align: center;
  }

  .footer-brand {
    justify-content: center;
  }

  .footer-brand .brand-copy {
    text-align: left;
  }

  .footer-nav ul {
    justify-content: center;
    gap: 13px 20px;
  }

  .back-top {
    right: 14px;
    bottom: 14px;
    width: 46px;
    height: 46px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .site-nav a::after,
  .back-top,
  .faq-answer,
  .auth-tabs button::after {
    transition: transform .2s ease, opacity .2s ease, visibility .2s ease, grid-template-rows .2s ease;
  }
}

@media (hover: none) and (pointer: coarse) {
  a,
  button {
    transition: none !important;
  }

  a:active,
  button:active {
    opacity: 1;
  }
}