:root {
  --gold: #c9972c;
  --gold-light: #e8c05b;
  --green: #0d5c3f;
  --green-deep: #083f2b;
  --ink: #14231c;
  --muted: #5d6b64;
  --line: #e5e0d2;
  --paper: #fffdf7;
  --cream: #f4f0e4;
  --dark: #0c1712;
  --shadow: 0 18px 50px rgba(20, 35, 28, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 253, 247, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(20, 35, 28, 0.08);
}
.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: #152018;
  font-size: 19px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 1px rgba(255,255,255,0.45);
}
.brand-text { font-size: 20px; font-weight: 800; letter-spacing: 0.06em; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { font-size: 14px; font-weight: 600; color: var(--muted); transition: color .2s; }
.main-nav a:hover { color: var(--green); }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }

.hero { min-height: 92vh; position: relative; display: flex; align-items: center; overflow: hidden; color: #fff; }
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("/static/official/hero-farm.jpg");
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 31, 20, 0.88), rgba(6, 31, 20, 0.58) 58%, rgba(6, 31, 20, 0.25));
}
.hero-content { position: relative; z-index: 2; padding: 140px 0 90px; }
.hero-kicker {
  display: inline-flex;
  padding: 7px 14px;
  border: 1px solid rgba(255,255,255,0.32);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #f6df9b;
  margin-bottom: 22px;
}
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(40px, 7vw, 78px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: 0.02em;
  max-width: 900px;
}
.hero-lead { max-width: 650px; font-size: 18px; color: rgba(255,255,255,0.86); margin: 0 0 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: linear-gradient(135deg, #edcb62, #c9972c); color: #172019; box-shadow: 0 12px 30px rgba(201, 151, 44, 0.28); }
.btn-ghost { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.42); color: #fff; }
.btn-lg { min-height: 56px; padding: 0 34px; font-size: 16px; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 56px;
  max-width: 780px;
}
.hero-metrics div {
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  padding: 16px;
  backdrop-filter: blur(8px);
}
.hero-metrics strong { display: block; font-size: 18px; color: #f6df9b; }
.hero-metrics span { font-size: 12px; color: rgba(255,255,255,0.72); }

.section { padding: 104px 0; }
.section-dark { background: var(--dark); color: #fff; }
.section-policy { background: linear-gradient(135deg, #0c2e20, #0f4d32); color: #fff; }
.section-ui { background: var(--cream); }
.section-head { max-width: 800px; margin-bottom: 56px; }
.section-head.light h2, .section-head.light p { color: #fff; }
.section-head h2 { margin: 10px 0 16px; font-size: clamp(30px, 4vw, 48px); line-height: 1.2; }
.section-head p { color: var(--muted); font-size: 16px; }
.section-head.light p { color: rgba(255,255,255,0.74); }
.eyebrow { color: var(--gold); font-size: 13px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; margin: 0; }

.value-grid, .feature-grid, .benefit-grid, .product-grid, .policy-grid, .phone-grid { display: grid; gap: 20px; }
.value-grid { grid-template-columns: repeat(3, 1fr); }
.value-card, .benefit-card, .feature-card, .product-card, .policy-grid article { border-radius: 8px; }
.value-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 32px;
  box-shadow: 0 10px 30px rgba(20, 35, 28, 0.05);
}
.value-num { color: var(--gold); font-size: 32px; font-weight: 800; }
.value-card h3 { font-size: 22px; margin: 12px 0 10px; }
.value-card p, .feature-card p, .benefit-card li, .product-card p { color: var(--muted); }

.feature-grid { grid-template-columns: repeat(3, 1fr); }
.feature-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 28px;
}
.feature-card h3 { color: #f6df9b; font-size: 19px; margin-bottom: 10px; }
.feature-card p { color: rgba(255,255,255,0.72); }

.section-pain { background: #fbf8ef; }
.pain-wrap { display: grid; grid-template-columns: 1.45fr 1fr; gap: 24px; align-items: start; }
.pain-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pain-list article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(20, 35, 28, 0.05);
}
.pain-list span { color: var(--gold); font-weight: 800; font-size: 18px; }
.pain-list h3 { font-size: 17px; margin: 8px 0 8px; }
.pain-list p { color: var(--muted); margin: 0; }
.pain-solution {
  background: var(--dark);
  color: #fff;
  border-radius: 8px;
  padding: 32px;
  position: sticky;
  top: 90px;
}
.pain-solution h3 { color: #f6df9b; font-size: 24px; margin: 10px 0 16px; }
.pain-solution ul { margin: 0; padding-left: 18px; }
.pain-solution li { color: rgba(255,255,255,0.78); margin-bottom: 12px; }

.section-benefit { background: var(--paper); }
.user-benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.user-benefit-grid article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(20, 35, 28, 0.05);
}
.user-benefit-grid h3 { color: var(--green); font-size: 20px; margin-top: 0; }
.user-benefit-grid p { color: var(--muted); margin-bottom: 0; }

.section-modules { background: var(--cream); }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.module-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(20, 35, 28, 0.05);
}
.module-wide { grid-column: span 3; }
.module-tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid rgba(13, 92, 63, 0.35);
  border-radius: 999px;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 14px;
}
.module-card h3 { font-size: 20px; margin: 0 0 10px; }
.module-card p { color: var(--muted); margin: 0; }

.flow { display: flex; align-items: stretch; justify-content: space-between; gap: 12px; margin-bottom: 56px; }
.flow-step {
  flex: 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 18px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(20, 35, 28, 0.05);
}
.flow-step span {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 12px;
}
.flow-step strong { display: block; font-size: 17px; }
.flow-step small { color: var(--muted); }
.flow-arrow { align-self: center; width: 24px; height: 2px; background: var(--gold); position: relative; flex-shrink: 0; }
.flow-arrow::after { content: ""; position: absolute; right: -1px; top: -4px; border-left: 6px solid var(--gold); border-top: 5px solid transparent; border-bottom: 5px solid transparent; }

.benefit-grid { grid-template-columns: repeat(3, 1fr); }
.benefit-card { background: var(--cream); padding: 28px; }
.benefit-card h3 { color: var(--green); font-size: 20px; margin-top: 0; }
.benefit-card ul { margin: 0; padding-left: 18px; }
.benefit-card li { margin-bottom: 8px; }

.policy-grid { grid-template-columns: repeat(3, 1fr); }
.policy-grid article { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.14); padding: 28px; }
.policy-grid h3 { color: #f6df9b; margin-top: 0; font-size: 19px; }
.policy-grid p { color: rgba(255,255,255,0.76); margin-bottom: 0; }

.product-grid { grid-template-columns: repeat(3, 1fr); }
.product-card { background: #fff; border: 1px solid var(--line); overflow: hidden; box-shadow: 0 10px 30px rgba(20, 35, 28, 0.06); }
.product-img { height: 230px; background-size: cover; background-position: center; }
.product-body { padding: 20px; }
.product-body h3 { margin: 0 0 6px; font-size: 18px; }
.product-body p { margin: 0 0 10px; font-size: 13px; }
.product-body strong { color: var(--green); font-size: 16px; }

.phone-grid { grid-template-columns: repeat(3, 1fr); }
.phone-card { text-align: center; }
.phone {
  width: 210px;
  height: 430px;
  margin: 0 auto 14px;
  border-radius: 28px;
  border: 8px solid #172019;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone-card p { color: var(--muted); font-size: 14px; }

.section-download { background: var(--dark); color: #fff; }
.download-wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 60px; align-items: center; }
.download-wrap h2 { font-size: clamp(34px, 5vw, 58px); margin: 10px 0 16px; }
.download-wrap p { color: rgba(255,255,255,0.74); }
.download-note { margin: 24px 0; padding-left: 20px; color: rgba(255,255,255,0.78); }
.download-note li { margin-bottom: 8px; }
.download-actions { display: flex; flex-direction: column; gap: 16px; }
.download-actions .btn { width: 100%; }

.site-footer { background: #08130d; color: rgba(255,255,255,0.68); padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer-inner p { margin: 6px 0 0; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a:hover { color: #fff; }
.footer-meta { width: 100%; font-size: 12px; border-top: 1px solid rgba(255,255,255,0.12); padding-top: 20px; margin-top: 10px; }

@media (max-width: 980px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #fffdf7;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px 24px;
    gap: 16px;
    transform: translateY(-130%);
    transition: transform .25s;
    box-shadow: var(--shadow);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-toggle { display: inline-flex; }
  .value-grid, .feature-grid, .benefit-grid, .product-grid, .policy-grid, .phone-grid,
  .user-benefit-grid, .module-grid { grid-template-columns: repeat(2, 1fr); }
  .pain-wrap { grid-template-columns: 1fr; }
  .pain-solution { position: static; }
  .module-wide { grid-column: span 2; }
  .flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); height: 20px; align-self: center; }
  .download-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 32px, 1180px); }
  .hero { min-height: 86vh; }
  .hero h1 { font-size: 38px; }
  .hero-metrics { grid-template-columns: 1fr; }
  .value-grid, .feature-grid, .benefit-grid, .product-grid, .policy-grid, .phone-grid,
  .user-benefit-grid, .module-grid, .pain-list { grid-template-columns: 1fr; }
  .module-wide { grid-column: span 1; }
  .section { padding: 76px 0; }
  .phone { width: 190px; height: 390px; }
}