/* Hallmark · genre: editorial · tone: warm quiet product note · palette: MaoMao TV paper/olive/warm · macrostructure: Long Document · nav: compact N1 · footer: Ft2 · pre-emit critique: P5 H4 E4 S5 R5 V4 · contrast: pass (40-41) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (34, 49, 50-57) */

:root {
  --bg: #faf6ed;
  --bg-deep: #f0e9d8;
  --ink: #2a2620;
  --ink-soft: #3a3530;
  --muted: #70675c;
  --muted-soft: #a89e8c;
  --accent: #6b8e4e;
  --accent-strong: #4f7435;
  --warm: #c4956b;
  --line: #d9d0c1;
  --paper: #fffaf1;
  --paper-translucent: rgba(255, 250, 241, 0.44);
  --max-width: 720px;
  --space-3xs: 4px;
  --space-2xs: 8px;
  --space-xs: 12px;
  --space-sm: 16px;
  --space-md: 20px;
  --space-lg: 24px;
  --space-xl: 28px;
  --space-2xl: 32px;
  --space-3xl: 40px;
  --space-4xl: 44px;
  --space-5xl: 48px;
  --space-6xl: 60px;
  --space-7xl: 64px;
  --space-8xl: 68px;
  --space-9xl: 72px;
  --space-10xl: 76px;
  --space-11xl: 80px;
  --space-12xl: 88px;
  --space-13xl: 92px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  min-width: 0;
  overflow-x: clip;
  font-family: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.82;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body[data-lang="en"] {
  font-family: Georgia, "Times New Roman", "Source Han Serif SC", "Songti SC", serif;
  line-height: 1.72;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 2px;
}

a:active {
  color: var(--accent-strong);
}

button {
  font: inherit;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: absolute;
  inset-block-start: -48px;
  inset-inline-start: 0;
  z-index: 100;
  padding: var(--space-2xs) var(--space-sm);
  border-radius: 4px;
  background: var(--ink);
  color: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 14px;
  text-decoration: none;
}

.skip-link:focus {
  inset-block-start: var(--space-2xs);
  inset-inline-start: var(--space-2xs);
}

main {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-6xl) var(--space-lg) var(--space-7xl);
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs) var(--space-md);
  margin-block-end: var(--space-7xl);
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.topbar a,
.topbar button {
  white-space: nowrap;
}

.topbar a {
  text-decoration: none;
  transition: color 0.2s ease;
}

.topbar a:hover,
.topbar a:focus-visible {
  color: var(--ink);
}

.topbar__right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs) var(--space-sm);
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3xs);
  padding: var(--space-3xs);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper-translucent);
}

.language-switch button {
  min-height: 28px;
  padding: 0 var(--space-2xs);
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.language-switch button.is-active {
  background: var(--ink);
  color: var(--bg);
}

.language-switch button:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

.language-switch button:active {
  background: var(--bg-deep);
  color: var(--ink);
}

.language-switch button.is-active:active {
  background: var(--ink-soft);
  color: var(--bg);
}

.hero {
  margin-block-end: var(--space-9xl);
  text-align: center;
}

.kicker,
h2,
.eyebrow {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.kicker {
  margin-block-end: var(--space-md);
}

h1 {
  max-width: 680px;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(40px, 14vw, 62px);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.subtitle {
  max-width: 560px;
  margin: var(--space-sm) auto 0;
  color: var(--ink-soft);
  font-size: 20px;
  line-height: 1.6;
}

.lede {
  max-width: 600px;
  margin: var(--space-2xl) auto 0;
  color: var(--ink-soft);
  font-size: 17px;
  text-align: start;
}

.lede p + p {
  margin-block-start: var(--space-sm);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  max-width: 600px;
  margin-inline: auto;
  gap: var(--space-xs);
  margin-block-start: var(--space-xl);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.button--primary {
  background: var(--ink);
  color: var(--bg);
}

.button--secondary {
  background: transparent;
  color: var(--ink);
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: var(--bg);
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.button:active {
  border-color: var(--ink-soft);
  background: var(--ink-soft);
  color: var(--bg);
}

.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}

.product-sketch {
  margin: var(--space-4xl) auto 0;
  max-width: 560px;
}

.product-sketch svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--ink);
}

.sketch-floor,
.sketch-screen {
  fill: none;
  stroke: var(--line);
}

.sketch-tablet {
  fill: var(--paper);
  stroke: var(--ink);
}

.sketch-screen-fill {
  fill: var(--bg-deep);
  stroke: var(--line);
}

.sketch-current {
  fill: none;
  stroke: var(--accent);
}

.sketch-target-fill {
  fill: var(--accent);
}

.sketch-warm-fill {
  fill: var(--warm);
}

.sketch-warm-stroke {
  fill: none;
  stroke: var(--warm);
}

.sketch-ink-fill {
  fill: var(--ink);
}

.sketch-ink-stroke {
  fill: none;
  stroke: var(--ink);
}

.sketch-paper-stroke {
  fill: none;
  stroke: var(--bg);
}

.swim-target {
  transform-box: fill-box;
  transform-origin: center;
  animation: swim-target 7s ease-in-out infinite;
}

.swim-target--slow {
  animation-duration: 9s;
  animation-delay: -2s;
}

.tap-ring {
  transform-box: fill-box;
  transform-origin: center;
  animation: tap-ring 4.8s ease-in-out infinite;
}

section {
  margin-block-end: var(--space-8xl);
}

section:last-of-type {
  margin-block-end: 0;
}

h2 {
  margin-block-end: var(--space-lg);
}

p,
li {
  color: var(--ink-soft);
  font-size: 17px;
}

p {
  margin-block-end: var(--space-sm);
}

p:last-child,
li:last-child {
  margin-block-end: 0;
}

strong {
  color: var(--ink);
  font-weight: 600;
}

ul {
  margin-block-start: var(--space-md);
  padding-inline-start: 0;
}

li {
  margin-block-end: var(--space-xs);
}

.quiet-rule {
  margin: var(--space-2xl) 0;
  padding: 4px 0 4px var(--space-lg);
  border-inline-start: 2px solid var(--accent);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.7;
}

.note {
  margin-block-start: var(--space-4xl);
  padding-block-start: var(--space-xl);
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 13px;
  line-height: 1.7;
}

.contact-block {
  margin-block-start: var(--space-10xl);
  padding-block-start: var(--space-3xl);
  border-block-start: 1px solid var(--line);
  text-align: center;
}

.contact-block p {
  max-width: 560px;
  margin-inline: auto;
  font-size: 16px;
}

.contact-lines {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xs) var(--space-md);
  margin-block-start: var(--space-md);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 14px;
}

.contact-lines a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact-lines a:hover,
.contact-lines a:focus-visible {
  color: var(--accent-strong);
  border-bottom-color: var(--accent-strong);
}

.policy-date {
  margin-block-start: var(--space-md);
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 13px;
}

.support-list {
  margin-block-start: 0;
}

.support-list li {
  padding-block: var(--space-sm);
  border-block-end: 1px solid var(--line);
  list-style: none;
}

.support-list li:first-child {
  padding-block-start: 0;
}

.support-list strong {
  display: block;
  margin-block-end: var(--space-3xs);
}

footer {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg) var(--space-5xl);
  color: var(--muted);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", sans-serif;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-align: center;
}

footer a {
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}

footer a:hover,
footer a:focus-visible {
  color: var(--ink);
}

@keyframes swim-target {
  0%,
  100% {
    transform: translate3d(-10px, 0, 0);
  }
  50% {
    transform: translate3d(12px, -4px, 0);
  }
}

@keyframes tap-ring {
  0%,
  74%,
  100% {
    opacity: 0;
    transform: scale(0.8);
  }
  82% {
    opacity: 0.45;
    transform: scale(1);
  }
  94% {
    opacity: 0;
    transform: scale(1.7);
  }
}

@media (min-width: 40rem) {
  main {
    padding: var(--space-12xl) var(--space-2xl) var(--space-11xl);
  }

  .topbar {
    margin-block-end: var(--space-13xl);
  }

  .hero {
    margin-block-end: var(--space-13xl);
  }

  h1 {
    font-size: clamp(52px, 8vw, 68px);
  }

  .subtitle {
    font-size: 22px;
  }

  .lede {
    font-size: 18px;
  }
}

@media (pointer: coarse) {
  .button {
    min-height: var(--space-5xl);
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}