:root {
  --ink: #171b18;
  --muted: #647067;
  --line: #dfe5dd;
  --paper: #f5f7f2;
  --green: #558f37;
  --green-dark: #386b29;
  --green-bright: #1d9433;
  --gold: #cbbf8d;
  --night: #070807;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
p { margin: 0; }

.site-header {
  height: 116px;
  max-width: none;
  margin: auto;
  padding: 0 max(28px, calc((100vw - 1184px)/2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--night);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.house-mark {
  width: 39px; height: 39px; border: 9px solid var(--green-bright); border-right-color: transparent;
  border-radius: 50%; display: grid; place-items: center; transform: rotate(-25deg); position: relative;
}
.house-mark span {
  width: 12px; height: 12px; border: 4px solid var(--green-bright); border-left-color: transparent;
  border-radius: 50%; transform: rotate(30deg);
}
.brand strong { display: block; letter-spacing: .2em; font: 600 17px/1.1 Georgia, serif; }
.brand small { display: block; margin-top: 4px; color: #c9cec9; font: italic 8px Georgia, serif; letter-spacing: .16em; }
.header-cta { border: 1px solid var(--green-bright); padding: 10px 20px; font-size: 13px; color: #fff; }
.header-cta:hover { background: var(--green-bright); }

.main-nav {
  min-height: 66px;
  padding: 0 max(28px, calc((100vw - 1184px)/2));
  background: var(--green);
  color: #fff;
}
.main-nav > div {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0;
}
.main-nav a {
  min-height: 66px;
  padding: 0 32px;
  display: inline-flex;
  align-items: center;
  font-size: 15px;
  font-weight: 700;
  transition: background .2s ease, color .2s ease;
}
.main-nav a:hover,
.main-nav a:focus-visible {
  background: rgba(255,255,255,.12);
  color: #f3f09f;
  outline: none;
}

.hero {
  min-height: 620px;
  max-width: none;
  margin: auto;
  padding: 74px max(50px, calc((100vw - 1140px)/2)) 76px;
  display: grid;
  grid-template-columns: 1.03fr .97fr;
  align-items: center;
  gap: 40px;
  overflow: hidden;
  background: #fff;
  color: var(--ink);
}
.eyebrow { color: var(--green); font-size: 12px; font-weight: 700; letter-spacing: .22em; }
.hero h1 { margin: 22px 0 24px; font: 500 clamp(46px, 5vw, 72px)/1.16 Georgia, "Noto Serif SC", serif; letter-spacing: -.035em; }
.hero h1 span { color: #69ad47; }
.hero-intro { max-width: 610px; color: var(--muted); font-size: 17px; line-height: 1.95; }
.hero-actions { display: flex; gap: 14px; margin: 34px 0 25px; }
.button { min-width: 140px; padding: 14px 24px; text-align: center; font-size: 14px; transition: .2s ease; }
.button-primary { background: var(--green); color: #fff; border: 1px solid var(--green); }
.button-primary:hover { background: var(--green-dark); }
.button-secondary { border: 1px solid #aeb9ad; color: var(--green-dark); }
.button-secondary:hover { border-color: var(--green); color: var(--green); background: var(--paper); }
.trust-line { color: var(--muted); font-size: 12px; }
.trust-line span { color: #69ad47; margin-right: 4px; }
.hero-visual { position: relative; min-height: 470px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; inset: 5% 0; background: radial-gradient(circle, rgba(85,143,55,.15) 0%, rgba(245,247,242,.64) 45%, transparent 70%); border-radius: 50%; }
.star-field { position: absolute; inset: 0; opacity: .6; background-image: radial-gradient(circle at 12% 28%, #558f37 0 1px, transparent 1.5px), radial-gradient(circle at 72% 16%, #b29c49 0 1px, transparent 1.5px), radial-gradient(circle at 84% 65%, #7d9274 0 1px, transparent 1.5px), radial-gradient(circle at 29% 78%, #96b987 0 1px, transparent 1.5px), radial-gradient(circle at 56% 46%, #558f37 0 1px, transparent 1.5px); background-size: 93px 83px, 141px 121px, 117px 107px, 169px 139px, 199px 157px; }
.orbit-mark { width: 390px; height: 390px; position: relative; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(105,173,71,.3); border-radius: 50%; }
.orbit-one { width: 350px; height: 350px; }
.orbit-two { width: 260px; height: 260px; transform: rotate(28deg) scaleY(.72); }
.orbit-three { width: 170px; height: 170px; border-color: rgba(203,191,141,.58); }
.orbit-core { z-index: 1; width: 105px; height: 105px; display: grid; place-items: center; border-radius: 50%; background: var(--green-bright); color: #fff; box-shadow: 0 18px 55px rgba(29,148,51,.25); font: 500 58px Georgia, serif; }
.planet { position: absolute; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 6px rgba(198,166,106,.12); }
.planet-one { width: 12px; height: 12px; top: 20px; left: 185px; }
.planet-two { width: 8px; height: 8px; right: 48px; bottom: 92px; background: var(--green-bright); }
.planet-three { width: 9px; height: 9px; left: 79px; bottom: 76px; }
.visual-caption { position: absolute; right: 0; bottom: 4px; padding: 13px 18px; background: rgba(255,255,255,.86); border-left: 2px solid var(--green-bright); box-shadow: 0 10px 30px rgba(38,65,31,.08); }
.visual-caption span, .visual-caption strong { display: block; }
.visual-caption span { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .18em; }
.visual-caption strong { margin-top: 5px; font: 500 15px Georgia, serif; }

.benefit-strip { background: var(--green); color: #fff; padding: 0 max(28px, calc((100vw - 1160px)/2)); display: grid; grid-template-columns: repeat(3, 1fr); }
.benefit-strip article { min-height: 172px; padding: 38px 32px; display: flex; gap: 20px; align-items: flex-start; border-right: 1px solid rgba(255,255,255,.12); }
.benefit-strip article:first-child { border-left: 1px solid rgba(255,255,255,.12); }
.benefit-strip article > span { color: var(--gold); font: italic 20px Georgia, serif; }
.benefit-strip h2 { margin: 0 0 8px; font: 500 20px Georgia, "Noto Serif SC", serif; }
.benefit-strip p { color: #e1ebdc; font-size: 13px; line-height: 1.8; }

.story { max-width: 1160px; margin: auto; padding: 112px 28px 45px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 90px; align-items: start; }
.story-intro h2 { margin: 16px 0 24px; font: 500 clamp(34px, 4vw, 49px)/1.28 Georgia, "Noto Serif SC", serif; }
.story-intro > p:not(.eyebrow) { color: var(--muted); font-size: 16px; line-height: 1.95; }
.story-intro > p + p { margin-top: 15px; }
.story-timeline { border-top: 1px solid var(--line); }
.story-timeline article { padding: 25px 0; display: grid; grid-template-columns: 95px 1fr; gap: 22px; border-bottom: 1px solid var(--line); align-items: baseline; }
.story-timeline strong { color: var(--green); font: 500 27px Georgia, serif; }
.story-timeline span { color: var(--muted); font-size: 14px; line-height: 1.7; }

.section { max-width: 1160px; margin: auto; padding: 110px 28px; }
.section-heading { text-align: center; max-width: 700px; margin: 0 auto 48px; }
.section-heading h2, .genuine h2, .contact h2 { margin: 15px 0 15px; font: 500 clamp(34px, 4vw, 48px)/1.25 Georgia, "Noto Serif SC", serif; }
.section-heading > p:last-child { color: var(--muted); line-height: 1.8; }
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.product-card { min-height: 470px; padding: 42px; border: 1px solid var(--line); position: relative; overflow: hidden; }
.product-card::after { content: ""; position: absolute; width: 210px; height: 210px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; right: -95px; top: -95px; }
.light-card { background: var(--paper); }
.light-card::after { border-color: rgba(29,79,124,.12); }
.pro-card { background: var(--green); color: #fff; }
.product-topline { display: flex; justify-content: space-between; align-items: center; color: var(--gold); font-size: 11px; letter-spacing: .14em; }
.product-topline i { font: italic 52px Georgia, serif; opacity: .18; letter-spacing: 0; }
.light-card .product-topline i { color: var(--green); opacity: .13; }
.product-card h3 { margin: 23px 0 18px; font: 500 38px Georgia, serif; }
.product-lead { max-width: 440px; min-height: 62px; color: #687386; font-size: 15px; line-height: 1.85; }
.pro-card .product-lead { color: #d2dce5; }
.product-card ul { list-style: none; padding: 22px 0 26px; margin: 20px 0; border-top: 1px solid rgba(102,112,130,.22); border-bottom: 1px solid rgba(102,112,130,.22); }
.pro-card ul { border-color: rgba(255,255,255,.16); }
.product-card li { margin: 12px 0; font-size: 14px; }
.product-card li::before { content: "—"; margin-right: 12px; color: var(--gold); }
.product-card > a { font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.product-card > a span { margin-left: 8px; color: var(--gold); }

.genuine { background: var(--paper); min-height: 550px; padding: 95px max(32px, calc((100vw - 1104px)/2)); display: grid; grid-template-columns: 1.35fr .65fr; gap: 80px; align-items: center; }
.genuine-copy > p:not(.eyebrow) { max-width: 650px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.genuine-points { margin-top: 36px; display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.genuine-points > div { display: flex; gap: 10px; }
.genuine-points b { color: var(--gold); }
.genuine-points strong, .genuine-points small { display: block; }
.genuine-points strong { margin-bottom: 6px; font-size: 14px; }
.genuine-points small { color: var(--muted); line-height: 1.6; }
.seal { width: 260px; height: 260px; border: 1px solid var(--gold); border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; color: var(--green); }
.seal::before, .seal::after { content: "✦"; position: absolute; color: var(--gold); font-size: 11px; top: 25px; }
.seal::after { top: auto; bottom: 25px; }
.seal span, .seal small { letter-spacing: .24em; font-size: 9px; }
.seal strong { margin: 13px 0 9px; font: 500 38px Georgia, serif; letter-spacing: .1em; }

.section-heading.compact { margin-bottom: 38px; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); }
.steps article { padding: 35px 38px 10px 0; border-right: 1px solid var(--line); }
.steps article + article { padding-left: 38px; }
.steps article:last-child { border-right: 0; }
.steps span { color: var(--gold); font: italic 21px Georgia, serif; }
.steps h3 { margin: 22px 0 11px; font: 500 22px Georgia, "Noto Serif SC", serif; }
.steps p { color: var(--muted); font-size: 14px; line-height: 1.85; }

.contact { margin-top: 30px; padding: 80px max(32px, calc((100vw - 1104px)/2)); background: var(--green-dark); color: #fff; display: grid; grid-template-columns: 1.3fr .7fr; gap: 80px; align-items: center; }
.contact > div > p:last-child { color: #d4dde5; line-height: 1.8; }
.contact-box { padding: 22px; background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.18); display: flex; align-items: center; gap: 22px; }
.wechat-qr { width: 176px; max-width: 48%; height: auto; flex: 0 0 auto; display: block; background: #fff; border: 8px solid #fff; }
.contact-box strong { display: block; margin-bottom: 9px; }
.contact-box p { color: #cbd7e1; font-size: 12px; line-height: 1.6; }

footer { max-width: 1160px; margin: auto; padding: 48px 28px 42px; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 30px; color: var(--muted); font-size: 12px; }
.footer-brand { color: var(--ink); }
.footer-brand .brand small { color: var(--muted); }

@media (max-width: 850px) {
  .site-header { height: 92px; padding: 0 20px; }
  .header-cta { padding: 9px 13px; }
  .main-nav { min-height: 58px; padding: 0; overflow-x: auto; }
  .main-nav > div { min-width: max-content; min-height: 58px; justify-content: flex-start; }
  .main-nav a { min-height: 58px; padding: 0 25px; font-size: 14px; }
  .hero { min-height: auto; padding: 58px 24px 50px; grid-template-columns: 1fr; }
  .hero h1 { font-size: 48px; }
  .hero-visual { min-height: 360px; }
  .orbit-mark { transform: scale(.8); }
  .benefit-strip, .story, .product-grid, .genuine, .genuine-points, .steps, .contact { grid-template-columns: 1fr; }
  .benefit-strip article { min-height: auto; border: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .section { padding: 80px 22px; }
  .story { padding: 80px 22px 20px; gap: 45px; }
  .product-card { min-height: auto; padding: 34px 28px; }
  .genuine { padding: 75px 28px; gap: 50px; }
  .seal { margin: auto; }
  .steps { border-top: 0; }
  .steps article, .steps article + article { padding: 25px 0; border-right: 0; border-top: 1px solid var(--line); }
  .contact { padding: 65px 28px; gap: 35px; }
  .contact-box { align-items: flex-start; }
  .wechat-qr { width: 210px; max-width: 52%; }
  footer { grid-template-columns: 1fr; text-align: left; }
}

@media (max-width: 480px) {
  .contact-box { flex-direction: column; }
  .wechat-qr { width: 100%; max-width: 280px; align-self: center; }
  .brand strong { font-size: 14px; }
  .brand small { font-size: 7px; }
  .header-cta { font-size: 12px; }
  .hero h1 { font-size: 39px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-visual { min-height: 300px; }
  .orbit-mark { transform: scale(.65); }
  .visual-caption { right: 10px; }
}