:root {
  color-scheme: light;
  --ink: #173a32;
  --ink-soft: #4f665f;
  --green: #0d6b50;
  --green-dark: #084c3a;
  --green-wash: #dff4e9;
  --cream: #fffaf0;
  --paper: #fffefb;
  --orange: #eb6534;
  --orange-wash: #ffe2d4;
  --yellow: #f5bd37;
  --yellow-wash: #fff1b8;
  --line: #dce5df;
  --shadow: 0 24px 70px rgb(28 72 59 / 12%);
  --radius-lg: 2rem;
  --radius-md: 1.35rem;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--green-dark);
  color: white;
  font-weight: 700;
}

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

.shell {
  width: min(72rem, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 5;
  padding: 1rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--green-dark);
  font-size: 1.15rem;
  font-weight: 850;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 0.85rem;
  background: var(--green);
  color: white;
  box-shadow: 0 8px 20px rgb(13 107 80 / 22%);
}

.brand-mark svg {
  width: 1.55rem;
  height: 1.55rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 3vw, 1.8rem);
}

.nav a {
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--green);
}

.nav .language-switch {
  padding: 0.42rem 0.78rem;
  border: 1px solid rgb(13 107 80 / 22%);
  border-radius: 999px;
  background: rgb(255 254 251 / 72%);
  color: var(--green);
}

.nav .language-switch:hover,
.nav .language-switch:focus-visible {
  border-color: var(--green);
  background: var(--paper);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(3.5rem, 8vw, 7.5rem) 0 clamp(4.25rem, 8vw, 7rem);
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: -15rem;
  right: -14rem;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(245 189 55 / 28%) 0 46%, transparent 47%);
  content: "";
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(18rem, 0.93fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 6rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--orange);
  content: "";
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 11ch;
  margin-bottom: 1.35rem;
  font-size: clamp(2.8rem, 7vw, 5.75rem);
  font-weight: 900;
}

.hero-lede {
  max-width: 35rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.2rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: var(--green);
  color: white;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 24px rgb(13 107 80 / 20%);
}

.button:hover,
.button:focus-visible {
  background: var(--green-dark);
}

.store-status {
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 700;
}

.hero-art {
  position: relative;
  display: grid;
  aspect-ratio: 1;
  place-items: center;
}

.hero-art::before,
.hero-art::after {
  position: absolute;
  z-index: -1;
  border-radius: var(--radius-lg);
  content: "";
}

.hero-art::before {
  inset: 8% 5% 5% 8%;
  rotate: -5deg;
  background: var(--green-wash);
}

.hero-art::after {
  inset: 18% 0 0 18%;
  rotate: 7deg;
  border: 2px solid rgb(235 101 52 / 24%);
  background: var(--orange-wash);
}

.hero-art img {
  width: min(100%, 34rem);
  filter: drop-shadow(0 28px 38px rgb(25 75 60 / 18%));
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-title {
  max-width: 15ch;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 880;
}

.section-intro {
  max-width: 42rem;
  margin: 0 0 2.5rem;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

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

.feature-card {
  min-height: 17.5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.feature-card:nth-child(2) {
  background: var(--green-wash);
}

.feature-card:nth-child(3) {
  background: var(--yellow-wash);
}

.feature-card:nth-child(4) {
  background: var(--orange-wash);
}

.feature-number {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 3.3rem;
  place-items: center;
  border: 1px solid rgb(23 58 50 / 16%);
  border-radius: 50%;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 850;
}

.feature-card h3 {
  margin-bottom: 0.7rem;
  font-size: 1.45rem;
}

.feature-card p {
  margin: 0;
  color: var(--ink-soft);
}

.privacy-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(18rem, 0.95fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(2rem, 6vw, 4.5rem);
  border-radius: var(--radius-lg);
  background: var(--green-dark);
  color: white;
  box-shadow: var(--shadow);
}

.privacy-panel .eyebrow {
  color: #b9ead8;
}

.privacy-panel h2 {
  max-width: 12ch;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.privacy-panel p {
  color: #d4e8df;
}

.privacy-list {
  display: grid;
  align-content: center;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.privacy-list li {
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  gap: 0.7rem;
  align-items: start;
}

.privacy-list li::before {
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  border-radius: 50%;
  background: #b9ead8;
  color: var(--green-dark);
  content: "✓";
  font-size: 0.8rem;
  font-weight: 900;
}

.privacy-link {
  display: inline-flex;
  margin-top: 1.15rem;
  color: white;
  font-weight: 800;
  text-underline-offset: 0.25rem;
}

.site-footer {
  padding: 2rem 0 3rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.footer-links {
  display: flex;
  gap: 1.2rem;
}

.footer-links a {
  font-weight: 700;
  text-underline-offset: 0.2rem;
}

.policy-hero {
  padding: clamp(3rem, 7vw, 6rem) 0 2.5rem;
}

.policy-hero h1 {
  max-width: none;
  margin-bottom: 1rem;
  font-size: clamp(2.6rem, 7vw, 5rem);
}

.policy-meta {
  color: var(--ink-soft);
}

.language-nav {
  display: flex;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.language-nav a {
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--green);
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
}

.language-nav a[aria-current="page"] {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.policy-layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: start;
  padding-bottom: 6rem;
}

.policy-toc {
  position: sticky;
  top: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
}

.policy-toc strong {
  display: block;
  margin-bottom: 0.7rem;
}

.policy-toc a {
  display: block;
  padding: 0.35rem 0;
  color: var(--ink-soft);
  font-size: 0.93rem;
  text-decoration: none;
}

.policy-toc a:hover,
.policy-toc a:focus-visible {
  color: var(--green);
}

.policy-content {
  min-width: 0;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: 0 18px 52px rgb(28 72 59 / 8%);
}

.policy-content section + section {
  margin-top: 2.4rem;
}

.policy-content h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  letter-spacing: -0.025em;
}

.policy-content p,
.policy-content li {
  color: #405b53;
}

.policy-content a {
  color: var(--green);
  font-weight: 700;
  text-underline-offset: 0.2rem;
}

.policy-divider {
  margin: 4rem 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.not-found {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem;
}

.not-found-card {
  max-width: 38rem;
  padding: clamp(2rem, 8vw, 5rem);
  border-radius: var(--radius-lg);
  background: var(--paper);
  text-align: center;
  box-shadow: var(--shadow);
}

.not-found-card h1 {
  max-width: none;
}

@media (max-width: 900px) {
  .hero-grid,
  .privacy-panel {
    grid-template-columns: 1fr;
  }

  .hero-art {
    width: min(100%, 31rem);
    margin-inline: auto;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .policy-layout {
    grid-template-columns: 1fr;
  }

  .policy-toc {
    position: static;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 1.25rem, 72rem);
  }

  .site-header {
    padding-top: 0.65rem;
  }

  .nav a:not(:last-child) {
    display: none;
  }

  .hero {
    padding-top: 2.4rem;
  }

  .hero-grid {
    gap: 3rem;
  }

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

  .feature-card {
    min-height: 0;
  }

  .feature-number {
    margin-bottom: 2rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

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