:root {
  color-scheme: light;
  --bg: #f7f8f6;
  --surface: #ffffff;
  --surface-muted: #ecefea;
  --text: #111514;
  --muted: #5b6361;
  --line: #dce1de;
  --brand: #2f8d78;
  --brand-dark: #17604f;
  --ink: #0b0f0e;
  --shadow: 0 24px 70px rgba(17, 21, 20, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

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

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

[data-screenshot] {
  transition: opacity 160ms ease;
}

.localized-screenshot-loading {
  opacity: 0;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(247, 248, 246, 0.82);
  border-bottom: 1px solid rgba(220, 225, 222, 0.7);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 28px);
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 24px);
}

.language-select {
  min-height: 36px;
  max-width: 150px;
  padding: 7px 32px 7px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%) calc(100% - 16px)
      50% / 6px 6px no-repeat,
    linear-gradient(135deg, var(--muted) 50%, transparent 50%) calc(100% - 10px)
      50% / 6px 6px no-repeat,
    rgba(255, 255, 255, 0.72);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.language-select:focus-visible {
  outline: 3px solid rgba(47, 141, 120, 0.24);
  outline-offset: 2px;
}

.hero {
  position: relative;
  min-height: 92svh;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 6vw, 86px) 70px;
  background: url("assets/brand/feature-graphic.jpg") center / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(247, 248, 246, 0.84);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 720px;
  min-width: 0;
  padding-top: 7vh;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(48px, 8vw, 112px);
  line-height: 0.96;
  font-weight: 900;
}

h1 span {
  display: block;
}

.hero-lede {
  max-width: 680px;
  margin: 26px 0 0;
  color: #29312f;
  font-size: clamp(18px, 2.1vw, 24px);
  font-weight: 650;
}

.hero-actions,
.site-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 22px;
  border-radius: 8px;
  font-weight: 850;
  transition:
    transform 160ms ease,
    background 160ms ease;
}

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

.button.primary {
  background: var(--brand);
  color: #fff;
}

.button.primary:hover {
  background: var(--brand-dark);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  color: var(--text);
}

.small-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-weight: 650;
}

.hero-stage {
  position: absolute;
  z-index: 1;
  inset: 84px clamp(12px, 4vw, 64px) 16px auto;
  width: min(45vw, 560px);
  min-width: 340px;
  opacity: 0.92;
}

.phone {
  position: absolute;
  width: 54%;
  border: 10px solid #101412;
  border-radius: 34px;
  box-shadow: var(--shadow);
}

.phone-main {
  right: 0;
  top: 8vh;
  transform: rotate(3deg);
}

.phone-side {
  right: 42%;
  top: 18vh;
  transform: rotate(-6deg);
  opacity: 0.74;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 82px 0;
}

.intro {
  padding-top: 34px;
}

.intro p {
  max-width: 920px;
  margin: 0;
  color: #202725;
  font-size: clamp(24px, 3vw, 40px);
  line-height: 1.26;
  font-weight: 850;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.04;
  font-weight: 900;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article,
.support,
.details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(17, 21, 20, 0.07);
}

.feature-grid article {
  min-height: 250px;
  padding: 24px;
}

.feature-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-weight: 900;
}

h3 {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 900;
}

.feature-grid p,
.support p,
.details li {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 650;
}

.screen-section {
  width: min(1240px, calc(100% - 40px));
}

.screens {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
  align-items: start;
}

figure {
  margin: 0;
}

figure img {
  width: 100%;
  border: 10px solid var(--ink);
  border-radius: 34px;
  background: var(--ink);
  box-shadow: var(--shadow);
}

figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-weight: 800;
  text-align: center;
}

.details {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: 34px;
  padding: clamp(26px, 5vw, 56px);
}

.details ul {
  display: grid;
  gap: 16px;
  margin: 0;
  padding-left: 20px;
}

.details li {
  padding-left: 4px;
}

.support {
  padding: clamp(28px, 5vw, 58px);
}

.support p {
  max-width: 720px;
  margin: 16px 0 28px;
  font-size: 18px;
}

.site-footer {
  justify-content: space-between;
  margin: 34px auto 0;
  width: min(1120px, calc(100% - 40px));
  padding: 28px 0 42px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-weight: 700;
}

.footer-links {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.legal-page {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 132px 0 42px;
}

.legal-hero {
  padding: 44px 0 34px;
}

.legal-hero h1 {
  max-width: 100%;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.04;
  overflow-wrap: anywhere;
}

.legal-updated {
  margin: 18px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.legal-section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.legal-section h2 {
  margin-bottom: 14px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.16;
}

.legal-section p {
  margin: 0 0 14px;
  color: #29312f;
  font-size: 17px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.legal-section p:last-child {
  margin-bottom: 0;
}

.legal-section a {
  color: var(--brand-dark);
  font-weight: 850;
  text-decoration: underline;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

.legal-section.english {
  margin-top: 18px;
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
    padding-top: 110px;
    padding-bottom: 360px;
  }

  .hero-stage {
    inset: auto 0 18px auto;
    width: 100%;
    min-width: 0;
    height: 380px;
  }

  .phone {
    width: 220px;
    border-width: 7px;
    border-radius: 26px;
  }

  .phone-main {
    right: 18%;
    top: 0;
  }

  .phone-side {
    right: 50%;
    top: 54px;
  }

  .feature-grid,
  .screens,
  .details {
    grid-template-columns: 1fr;
  }

  .screens {
    max-width: 420px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 14px 18px;
    gap: 12px;
    justify-content: flex-start;
  }

  .site-header nav {
    display: none;
  }

  .brand {
    flex: 1 1 auto;
    min-width: 0;
  }

  .header-actions {
    margin-left: auto;
    flex-shrink: 0;
  }

  .language-select {
    width: 112px;
    max-width: 112px;
    min-height: 34px;
    padding-left: 10px;
    font-size: 13px;
  }

  .brand span {
    display: inline;
  }

  .hero {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-copy {
    width: min(100%, 350px);
    max-width: 100%;
  }

  h1 {
    max-width: 100%;
    font-size: 40px;
    line-height: 1.04;
    overflow-wrap: anywhere;
  }

  .legal-page {
    width: calc(100% - 40px);
    padding-top: 96px;
  }

  .legal-hero {
    padding-top: 28px;
  }

  .legal-hero h1 {
    font-size: 36px;
  }

  .hero-lede {
    font-size: 17px;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .small-note {
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .hero-actions {
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .phone-main {
    right: 4%;
  }

  .phone-side {
    right: 42%;
  }
}