:root {
  --green-900: #1f6d37;
  --green-800: #2f8548;
  --green-700: #3e9a57;
  --green-500: #62bd74;
  --green-200: #d8f4dc;
  --green-100: #eefbef;
  --red: #ff5d62;
  --yellow: #ffd35c;
  --ink: #243429;
  --muted: #66776c;
  --card: rgba(255, 255, 255, 0.86);
  --shadow: 0 24px 80px rgba(42, 115, 61, 0.18);
  font-family:
    "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 10%, rgba(111, 207, 121, 0.25), transparent 24rem),
    radial-gradient(circle at 86% 8%, rgba(255, 211, 92, 0.18), transparent 22rem),
    linear-gradient(180deg, #effbf5 0%, #f8fff2 48%, #e4f7d5 100%);
  min-height: 100vh;
}

body::before,
body::after {
  position: fixed;
  z-index: -1;
  color: rgba(47, 133, 72, 0.23);
  font-size: clamp(7rem, 18vw, 16rem);
  font-weight: 900;
  line-height: 1;
  content: "🍉";
  filter: blur(0.2px);
}

body::before {
  top: 8%;
  left: -4rem;
  transform: rotate(-18deg);
}

body::after {
  right: -5rem;
  bottom: 2%;
  transform: rotate(18deg);
}

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

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

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 48px;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  margin-bottom: 18px;
  border: 1px solid rgba(112, 181, 122, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 12px 40px rgba(74, 141, 76, 0.12);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 10px;
}

.brand-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  box-shadow: 0 10px 22px rgba(255, 93, 98, 0.22);
}

.brand-name {
  color: var(--green-800);
  font-size: 1.28rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.header-link,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.header-link,
.primary-button {
  color: #fff;
  background: linear-gradient(135deg, var(--green-500), var(--green-800));
  box-shadow: 0 14px 28px rgba(54, 150, 78, 0.26);
}

.header-link {
  min-height: 42px;
  padding: 0 18px;
  white-space: nowrap;
}

.primary-button {
  padding: 0 24px;
  font-size: 1rem;
}

.secondary-button {
  color: var(--green-800);
  padding: 0 20px;
  background: #fff;
  border: 1px solid rgba(62, 154, 87, 0.24);
}

.header-link:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.section-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(104, 179, 112, 0.25);
  border-radius: 34px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.section-card::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 12% 16%, rgba(98, 189, 116, 0.16), transparent 18rem),
    radial-gradient(circle at 86% 82%, rgba(255, 211, 92, 0.2), transparent 16rem);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  gap: 34px;
  align-items: center;
  min-height: 720px;
  padding: clamp(28px, 5vw, 62px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green-800);
  font-weight: 900;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 9em;
  margin-bottom: 18px;
  color: var(--green-900);
  font-size: clamp(2.45rem, 5.8vw, 5rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
}

h2 {
  margin-bottom: 12px;
  color: var(--green-900);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 8px;
  color: var(--green-900);
  font-size: 1.2rem;
}

.hero-lead,
.section-heading p,
.download-card p,
.feature-card p,
.final-cta p {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.8;
}

.hero-lead {
  max-width: 620px;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.quick-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0;
}

.quick-points span {
  padding: 10px 16px;
  color: var(--green-800);
  font-weight: 800;
  border: 1px solid rgba(98, 189, 116, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.download-card {
  display: grid;
  gap: 18px;
  max-width: 640px;
  padding: 22px;
  border: 1px solid rgba(62, 154, 87, 0.18);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.78);
}

.download-kicker {
  margin-bottom: 2px;
  color: var(--red) !important;
  font-weight: 900;
}

.download-card h2 {
  margin-bottom: 4px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.download-note {
  margin-bottom: 0;
  padding: 12px 14px;
  border-radius: 18px;
  background: var(--green-100);
}

.hero-visual {
  position: relative;
  justify-self: center;
  width: min(100%, 430px);
}

.poster-frame {
  overflow: hidden;
  border: 10px solid rgba(255, 255, 255, 0.92);
  border-radius: 36px;
  background: #eaffef;
  box-shadow: 0 28px 80px rgba(31, 109, 55, 0.22);
  transform: rotate(2deg);
}

.poster-frame img {
  width: 100%;
}

.floating-badge {
  position: absolute;
  padding: 12px 16px;
  color: #fff;
  font-weight: 900;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--red), #ff8c71);
  box-shadow: 0 16px 30px rgba(255, 93, 98, 0.28);
}

.badge-top {
  top: 9%;
  right: -6%;
}

.badge-bottom {
  bottom: 8%;
  left: -7%;
  background: linear-gradient(135deg, var(--green-500), var(--green-800));
}

.value-section,
.ios-section,
.final-cta {
  margin-top: 26px;
  padding: clamp(24px, 4vw, 46px);
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 30px;
  text-align: center;
}

.ios-section .section-heading {
  max-width: 100%;
}

.ios-section .section-heading h2 {
  white-space: nowrap;
  font-size: clamp(1.45rem, 4.4vw, 3.4rem);
}

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

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(62, 154, 87, 0.18);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.72);
}

.feature-copy h3 {
  margin-bottom: 0;
}

.feature-copy p {
  margin: 6px 0 0;
}

.feature-icon {
  display: inline-grid;
  width: 54px;
  height: 54px;
  flex: 0 0 54px;
  place-items: center;
  color: #fff;
  font-size: 1.45rem;
  font-weight: 900;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--green-500), var(--green-800));
  box-shadow: 0 14px 26px rgba(54, 150, 78, 0.22);
}

.wide-art,
.notice-art {
  overflow: hidden;
  margin-top: 24px;
  border-radius: 24px;
  background: #f2fff4;
}

.wide-art img,
.notice-art img {
  width: 100%;
}

.ios-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 20px;
  align-items: stretch;
}

.steps-panel,
.sign-card {
  border: 1px solid rgba(62, 154, 87, 0.18);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.75);
}

.steps-panel {
  display: grid;
  gap: 20px;
  padding: 24px;
}

.install-steps {
  display: grid;
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.install-steps li {
  position: relative;
  min-height: 64px;
  padding-left: 74px;
  counter-increment: step;
}

.install-steps li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  color: #fff;
  font-weight: 900;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--red), #ff8c71);
  content: counter(step);
}

.install-steps strong,
.install-steps span {
  display: block;
}

.install-steps strong {
  margin-bottom: 5px;
  color: var(--green-900);
}

.install-steps span {
  color: var(--muted);
  line-height: 1.65;
}

.ios-download {
  width: 100%;
}

.sign-sites {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.sign-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.sign-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(42, 115, 61, 0.15);
}

.sign-card span {
  color: var(--green-900);
  font-size: 1.2rem;
  font-weight: 900;
}

.sign-card em {
  color: var(--muted);
  font-style: normal;
  line-height: 1.65;
}

.sign-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 36px;
  padding: 0 16px;
  color: #fff;
  font-size: 0.92rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--green-500), var(--green-800));
  box-shadow: 0 10px 20px rgba(54, 150, 78, 0.2);
}

.final-cta {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.final-cta img {
  width: 86px;
  border-radius: 24px;
  box-shadow: 0 14px 30px rgba(255, 93, 98, 0.22);
}

.final-cta h2 {
  margin-bottom: 8px;
}

.final-cta p:last-child {
  margin-bottom: 0;
}

body[data-platform="android"] .platform-ios-only,
body[data-platform="ios"] .platform-android-only {
  display: none !important;
}

body[data-platform="android"] #ios-guide {
  display: none;
}

@media (max-width: 920px) {
  .hero,
  .ios-layout,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    width: min(100%, 390px);
  }

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

  .final-cta {
    text-align: center;
  }

  .final-cta img,
  .final-cta .primary-button {
    justify-self: center;
  }
}

@media (max-width: 620px) {
  .page-shell {
    width: min(100% - 18px, 1180px);
    padding-top: 9px;
  }

  .site-header {
    align-items: center;
    border-radius: 24px;
  }

  .brand-name {
    font-size: 1.08rem;
  }

  .brand-icon {
    width: 40px;
    height: 40px;
  }

  .header-link {
    display: none;
  }

  .section-card {
    border-radius: 24px;
  }

  .hero,
  .value-section,
  .ios-section,
  .final-cta {
    padding: 22px;
  }

  h1 {
    max-width: 7em;
    font-size: clamp(2.7rem, 13vw, 4.1rem);
  }

  .download-card,
  .feature-card,
  .steps-panel,
  .sign-card {
    border-radius: 20px;
  }

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

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .floating-badge {
    display: none;
  }

  .hero-visual,
  .wide-art,
  .notice-art {
    display: none;
  }

  .poster-frame {
    border-width: 7px;
    border-radius: 28px;
    transform: rotate(0deg);
  }
}