@font-face {
  font-family: "Gaegu";
  src: url("Gaegu-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "ZCOOL KuaiLe";
  src: url("ZCOOLKuaiLe-Regular.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Gaegu";
  src: url("Gaegu-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

:root {
  --paper: #f6eddc;
  --paper-deep: #ead6ad;
  --ink: #594d38;
  --muted: #786c57;
  --green: #587557;
  --green-dark: #3f5e45;
  --pond: #dfe9bb;
  --line: rgba(89, 77, 56, .16);
  --shadow: 0 24px 60px rgba(54, 70, 44, .18);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--pond);
}

body {
  margin: 0;
  padding-top: 18px;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(255,255,255,.72), transparent 25rem),
    linear-gradient(180deg, #e8efc8 0%, #d9e5b5 46%, #f3e7cf 100%);
  font-family: "Gaegu", ui-rounded, "SF Pro Rounded", system-ui, sans-serif;
  font-size: 20px;
  line-height: 1.45;
  min-height: 100vh;
}

html[lang="zh-Hans"] body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.55;
}

html[lang="zh-Hans"] h1,
html[lang="zh-Hans"] h2,
html[lang="zh-Hans"] h3 {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-weight: 500;
  letter-spacing: .015em;
  line-height: 1.12;
}

html[lang="zh-Hans"] .eyebrow {
  font-weight: 500;
  letter-spacing: .08em;
}

html[lang="zh-Hans"] .brand b,
html[lang="zh-Hans"] .feature-icon {
  font-family: "ZCOOL KuaiLe", "PingFang SC", system-ui, sans-serif;
  font-weight: 400;
}

a { color: var(--green-dark); }
a:hover { color: #294732; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: .7rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: white;
}
.skip-link:focus { top: 1rem; }

.site-header {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 12px 10px 14px;
  border: 1px solid rgba(89,77,56,.12);
  border-radius: 24px;
  background: rgba(246, 237, 220, .76);
  box-shadow: 0 10px 40px rgba(54, 70, 44, .1);
  backdrop-filter: blur(16px);
  position: relative;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}
.brand img { border-radius: 12px; box-shadow: 0 4px 12px rgba(54,70,44,.15); }
.brand span { display: grid; line-height: 1; }
.brand b { font-size: 21px; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 14px; }

nav { display: flex; align-items: center; gap: 4px; }
nav a,
.language-button {
  border: 0;
  border-radius: 999px;
  padding: 8px 13px;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
}
nav a:hover,
nav a.active,
.language-button:hover {
  background: rgba(88,117,87,.12);
  color: var(--green-dark);
}
.language-button { border: 1px solid var(--line); }

.language-select {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-width: 128px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,250,239,.48);
}

.language-select:hover,
.language-select:focus-within {
  background: rgba(88,117,87,.12);
  color: var(--green-dark);
}

.language-select span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.language-select select {
  width: 100%;
  appearance: none;
  border: 0;
  border-radius: inherit;
  padding: 8px 32px 8px 13px;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 16px;
  cursor: pointer;
}

.language-select::after {
  content: "⌄";
  position: absolute;
  right: 12px;
  top: 50%;
  translate: 0 -54%;
  color: var(--green-dark);
  font-size: 17px;
  pointer-events: none;
}

main { overflow: hidden; }

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 72px auto 90px;
  display: grid;
  grid-template-columns: 1fr minmax(360px, 500px);
  align-items: center;
  gap: clamp(40px, 8vw, 110px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1, h2, h3, p { text-wrap: pretty; }
h1 {
  margin: 0;
  font-size: clamp(48px, 6vw, 79px);
  line-height: .98;
  letter-spacing: -.035em;
}
h2 {
  margin: 0;
  font-size: clamp(36px, 4vw, 52px);
  line-height: 1.05;
}
h3 { margin: 0 0 7px; font-size: 25px; line-height: 1.1; }
.lead {
  max-width: 630px;
  margin: 25px 0 30px;
  color: var(--muted);
  font-size: clamp(21px, 2vw, 25px);
}
.hero-actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 17px;
  border-radius: 14px;
  background: #283c30;
  color: #fff;
  box-shadow: 0 8px 20px rgba(40,60,48,.2);
  line-height: 1;
  text-decoration: none;
}
.store-badge:hover { color: #fff; background: #203427; }
.store-badge > span:first-child { font-family: system-ui, sans-serif; font-size: 29px; }
.store-badge > span:last-child { display: grid; }
.store-badge small { font-family: system-ui, sans-serif; font-size: 9px; }
.store-badge b { font-family: system-ui, sans-serif; margin-top: 3px; font-size: 18px; }
.text-link { font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 4px; }

.pond-window {
  position: relative;
  aspect-ratio: .72;
  overflow: hidden;
  border: 11px solid rgba(246,237,220,.92);
  border-radius: 44% 44% 38% 38% / 16% 16% 10% 10%;
  box-shadow: var(--shadow);
  isolation: isolate;
}
.pond-window::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 8;
  border-radius: inherit;
  box-shadow: inset 0 0 45px rgba(41,72,54,.22);
  pointer-events: none;
}
.pond-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.fish {
  position: absolute;
  z-index: 4;
  width: 36%;
  filter: drop-shadow(0 8px 7px rgba(34,58,44,.22));
  animation: drift 7s ease-in-out infinite;
}
.fish-orange { left: 10%; top: 19%; transform: rotate(8deg); }
.fish-blue { right: 6%; top: 35%; width: 31%; animation-delay: -2s; }
.fish-black { left: 13%; bottom: 18%; width: 32%; animation-delay: -4s; }
.fish-red { right: 9%; bottom: 7%; width: 29%; animation-delay: -5s; }
.ripple {
  position: absolute;
  z-index: 3;
  width: 28%;
  aspect-ratio: 1;
  border: 2px solid rgba(255,255,255,.45);
  border-radius: 50%;
  animation: ripple 4s ease-out infinite;
}
.ripple-one { left: 21%; top: 33%; }
.ripple-two { right: 18%; bottom: 22%; animation-delay: -2s; }

.paper-section {
  padding: 90px max(24px, calc((100vw - 1180px) / 2));
  background:
    linear-gradient(rgba(246,237,220,.93), rgba(246,237,220,.93)),
    url("pond-spring.jpg") center / cover;
  border-block: 1px solid rgba(89,77,56,.1);
}
.section-heading { max-width: 700px; }
.feature-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-grid article {
  min-height: 240px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,250,239,.68);
  box-shadow: 0 12px 30px rgba(89,77,56,.06);
}
.feature-grid p { margin: 0; color: var(--muted); font-size: 18px; }
.feature-icon {
  display: grid;
  place-items: center;
  width: 45px;
  height: 45px;
  margin-bottom: 23px;
  border-radius: 50%;
  background: rgba(88,117,87,.13);
  color: var(--green);
  font-size: 25px;
}

.privacy-callout {
  width: min(1080px, calc(100% - 40px));
  margin: 100px auto;
  padding: clamp(28px, 5vw, 60px);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  border: 1px solid rgba(63,94,69,.2);
  border-radius: 34px;
  background: rgba(224,234,190,.78);
}
.privacy-callout > div { max-width: 700px; }
.privacy-callout p:last-child { color: var(--muted); font-size: 20px; }
.button-primary,
.button-secondary {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 11px 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}
.button-primary { background: var(--green-dark); color: white; box-shadow: 0 8px 20px rgba(63,94,69,.2); }
.button-primary:hover { color: white; background: #294732; }
.button-secondary { border: 1px solid rgba(63,94,69,.35); background: rgba(255,255,255,.28); }

.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 16px;
}
.site-footer p { margin: 0; }
.site-footer div { display: flex; gap: 18px; flex-wrap: wrap; justify-content: end; }

.document-main { overflow: visible; }
.document-hero {
  width: min(850px, calc(100% - 40px));
  margin: 80px auto 36px;
}
.document-hero h1 { font-size: clamp(55px, 7vw, 82px); }
.document-hero > p:not(.eyebrow) { color: var(--muted); font-size: 21px; }
.document-hero .button-primary { margin-top: 12px; }
.legal-paper {
  width: min(850px, calc(100% - 40px));
  margin: 0 auto 90px;
  padding: clamp(25px, 5vw, 62px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(250,242,225,.88);
  box-shadow: var(--shadow);
}
.legal-paper section + section {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.legal-paper h2 { font-size: 30px; }
.legal-paper p { margin: 9px 0 0; color: var(--muted); font-size: 19px; }

.support-layout {
  width: min(1000px, calc(100% - 40px));
  margin: 0 auto 90px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, .75fr);
  align-items: start;
  gap: 24px;
}
.faq-list { display: grid; gap: 12px; }
details,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(250,242,225,.84);
  box-shadow: 0 10px 25px rgba(54,70,44,.07);
}
details { padding: 18px 22px; }
summary { cursor: pointer; font-size: 23px; font-weight: 700; }
details p { margin: 12px 0 3px; color: var(--muted); font-size: 18px; }
.contact-card { padding: 25px; text-align: center; position: sticky; top: 24px; }
.contact-card img { width: min(180px, 75%); filter: drop-shadow(0 8px 7px rgba(34,58,44,.15)); }
.contact-card h2 { font-size: 32px; }
.contact-card p { color: var(--muted); font-size: 18px; }
.contact-card a { overflow-wrap: anywhere; }

.not-found { display: grid; place-items: center; text-align: center; }
.not-found main { width: min(560px, calc(100% - 40px)); padding: 40px; }
.not-found img { filter: drop-shadow(0 8px 7px rgba(34,58,44,.15)); }
.not-found h1 { font-size: clamp(43px, 8vw, 65px); }
.not-found p:not(.eyebrow) { color: var(--muted); }

@keyframes drift {
  0%, 100% { translate: 0 0; }
  50% { translate: 4px -10px; }
}
@keyframes ripple {
  0% { scale: .45; opacity: 0; }
  25% { opacity: 1; }
  100% { scale: 1.35; opacity: 0; }
}

@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; margin-top: 52px; }
  .hero-copy { text-align: center; }
  .hero-copy .lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .pond-window { width: min(460px, 100%); margin: 0 auto; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .privacy-callout { align-items: start; flex-direction: column; }
  .support-layout { grid-template-columns: 1fr; }
  .contact-card { position: static; }
}

@media (max-width: 620px) {
  body { font-size: 18px; }
  .site-header { align-items: flex-start; }
  .brand small { display: none; }
  nav { justify-content: flex-end; flex-wrap: wrap; }
  nav a, .language-button { padding: 7px 9px; font-size: 15px; }
  .language-select { min-width: 112px; }
  .language-select select { padding: 7px 28px 7px 10px; font-size: 15px; }
  .language-select::after { right: 10px; }
  .hero { width: min(100% - 28px, 1180px); margin-bottom: 65px; }
  h1 { font-size: 48px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { min-height: 0; }
  .site-footer { flex-direction: column; }
  .site-footer div { justify-content: start; flex-direction: column; gap: 7px; }
  .legal-paper { border-radius: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (prefers-contrast: more) {
  :root { --ink: #30291e; --muted: #4c4437; --line: rgba(48,41,30,.35); }
}