:root {
  --green-900: #2f5b20;
  --green-800: #3f7424;
  --green-700: #477f23;
  --green-600: #3f7424;
  --green-500: #9de314;
  --green-100: #effbdd;
  --yellow: #f4d44d;
  --ink: #18231a;
  --muted: #63715e;
  --line: #dce8d2;
  --paper: #fbfdf7;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(24, 35, 26, .12);
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 253, 247, .92);
  border-bottom: 1px solid rgba(220, 232, 210, .8);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1160px, calc(100% - 32px));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(90, 152, 38, .18);
}

.brand span {
  color: var(--green-900);
  font-size: 24px;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: #395033;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  flex: 0 0 auto;
  padding: 10px 12px;
  border-radius: 8px;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--green-900);
  background: var(--green-100);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 0;
  border-radius: 8px;
  background: var(--green-700);
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(49, 84, 32, .22);
}

.btn:hover { background: var(--green-600); }

.btn.secondary {
  background: #fff;
  color: var(--green-800);
  border: 1px solid var(--line);
  box-shadow: none;
}

.hero {
  background:
    radial-gradient(circle at 80% 10%, rgba(244, 212, 77, .26), transparent 30%),
    linear-gradient(135deg, #f8fbf3 0%, #eaf4df 58%, #ffffff 100%);
}

.section,
.hero-inner {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-inner {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr);
  align-items: center;
  gap: 52px;
  padding: 54px 0 76px;
}

.eyebrow {
  color: var(--green-700);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  margin-top: 16px;
  font-size: clamp(42px, 6vw, 66px);
  max-width: 820px;
}

h2 { font-size: clamp(30px, 4vw, 48px); }

h3 { font-size: 22px; }

p { margin: 0; color: var(--muted); }

.lead {
  margin-top: 22px;
  max-width: 720px;
  font-size: 18px;
  color: #43523e;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.proof-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .74);
}

.proof-item strong {
  display: block;
  font-size: 24px;
  line-height: 1;
}

.proof-item span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.hero-media {
  position: relative;
  padding: 18px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-media img { border-radius: 6px; border: 1px solid #e5ecdd; }

.floating-note {
  position: absolute;
  right: -18px;
  bottom: 26px;
  max-width: 238px;
  padding: 16px 18px;
  border-radius: 8px;
  background: var(--green-900);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 18px 36px rgba(24, 35, 26, .24);
}

.section { padding: 86px 0; }

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-end;
  margin-bottom: 34px;
    padding:0 30px;
}

.section-head p { max-width: 620px; }

.grid {
  display: grid;
  gap: 18px;
}

.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr));   padding:0 30px;}

.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(24, 35, 26, .06);
}

.card h3 { margin-bottom: 10px; }

.icon {
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--green-100);
  color: var(--green-700);
}

.band {
  background: var(--green-900);
  color: #fff;
}

.band p,
.band .eyebrow { color: #d7e8cc; }

.band .card h3 { color: var(--ink); }
.band .card p { color: var(--muted); }

.scenario {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 32px;
  align-items: center;
}

.band .scenario {
  padding-inline: 28px;
}

.band .scenario h2 {
  max-width: 780px;
  text-wrap: balance;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: #3f503a;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .48em;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green-600);
  box-shadow: inset 0 0 0 5px #fff;
}

.band .check-list li { color: #eaf5df; }

.download-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
    padding:0 30px;
}

.download-option {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 100%;
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.quote {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.quote blockquote {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}

.quote cite {
  margin-top: 20px;
  color: var(--muted);
  font-style: normal;
  font-size: 14px;
}

.page-hero {
  padding: 72px 0 62px;
  background: linear-gradient(135deg, #f7fbf2 0%, #edf6e4 100%);
  border-bottom: 1px solid var(--line);
}

.page-hero .section { padding: 0; }

.page-hero h1 { font-size: clamp(38px, 5vw, 60px); }

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--ink);
}

.faq-item p { margin-top: 12px; }

.site-footer {
  padding: 46px 0;
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-weight: 700;
  color: var(--green-700);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.is-open { display: flex; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(24, 35, 26, .62);
}

.modal-dialog {
  position: relative;
  width: min(760px, 100%);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
  overflow: hidden;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  background: var(--green-900);
  color: #fff;
}

.modal-head p { color: #d7e8cc; }

.modal-close {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 8px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 28px;
}

.qr-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.qr-card img {
  width: 190px;
  margin: 0 auto 14px;
}

.qr-card h3 { font-size: 18px; }

.modal-foot {
  padding: 0 28px 28px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .nav { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .nav-links { width: 100%; overflow-x: auto; padding-bottom: 2px; }
  .hero-inner,
  .scenario,
  .download-panel { grid-template-columns: 1fr; }
  .hero-inner { min-height: auto; }
  .hero-media { max-width: 680px; }
  .floating-note { position: static; margin-top: 14px; max-width: none; }
  .grid.three,
  .grid.four,
  .grid.two { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .section-head p { margin-top: 14px; }
}

@media (max-width: 620px) {
  .hero-proof,
  .qr-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .hero-inner { padding: 40px 0 58px; }
  .band .scenario { padding-inline: 18px; }
  .band .scenario h2 {
    font-size: clamp(28px, 10vw, 40px);
    line-height: 1.18;
    overflow-wrap: anywhere;
  }
  .btn { width: 100%; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}