:root {
  --bg: #fbfaf5;
  --bg-soft: #f4f4ea;
  --ink: #1f211d;
  --muted: #666b63;
  --accent: #90b96b;
  --accent-deep: #4e7a3b;
  --accent-soft: #dce9c7;
  --shadow: 0 24px 50px rgba(73, 85, 54, 0.08);
  --max-width: 1240px;
  --radius-xl: 42px;
  --radius-lg: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 12%, rgba(210, 229, 183, 0.56), transparent 16%),
    radial-gradient(circle at 48% 22%, rgba(224, 238, 203, 0.36), transparent 24%),
    radial-gradient(circle at 100% 36%, rgba(221, 236, 196, 0.58), transparent 18%),
    radial-gradient(circle at 52% 58%, rgba(229, 240, 210, 0.32), transparent 28%),
    radial-gradient(circle at 0% 84%, rgba(226, 237, 205, 0.46), transparent 18%),
    linear-gradient(180deg, #fffefb 0%, var(--bg) 100%);
}

.page-shell {
  width: min(calc(100% - 96px), var(--max-width));
  margin: 0 auto;
  padding: 0 0 34px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
  padding: 0;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(116, 130, 97, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: inherit;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: auto;
  height: 48px;
  object-fit: contain;
}

.hero-kicker,
.section-heading h2,
.offer-banner h2 {
  font-family: "Times New Roman", Georgia, serif;
  font-weight: 600;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

.nav {
  display: flex;
  gap: 34px;
  align-items: center;
}

.nav-toggle,
.nav-toggle-button,
.nav-backdrop,
.mobile-mission-bar {
  display: none;
}

.nav a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.96rem;
  letter-spacing: 0.01em;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--accent-deep);
  color: #fff;
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(48px, 5vw, 64px);
  align-items: center;
  padding: 28px 0 34px;
  margin-bottom: 72px;
}

.hero-copy {
  max-width: 570px;
  width: 100%;
}

.hero-media {
  margin-top: 28px;
}

.hero-copy-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  justify-content: flex-start;
}

.hero-leaf {
  width: 88px;
  height: 30px;
  margin: 0;
  order: 2;
}

  .hero-kicker {
    margin: 0;
    color: #1e201b;
    max-width: 15em;
    font-size: 1.96rem;
    line-height: 1.18;
    font-weight: 600;
    letter-spacing: 0;
    order: 1;
  }

.hero-body {
  max-width: 28em;
  margin: 0 0 44px;
  color: #3f433c;
  font-size: 1.48rem;
  font-weight: 400;
  line-height: 1.52;
  letter-spacing: 0;
}

.lede {
  max-width: 100%;
  margin: 0;
  color: #6d7169;
  font-size: 0.95rem;
  line-height: 1.65;
  white-space: normal;
  letter-spacing: 0.01em;
}

.photo-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  border-radius: 18px;
}

.photo-card-large {
  min-height: 510px;
  background:
    linear-gradient(180deg, rgba(31, 42, 24, 0.02), rgba(31, 42, 24, 0.08)),
    url("./image/zhutu.jpg") center / cover no-repeat;
}

.photo-overlay {
  position: absolute;
  left: 30px;
  right: 30px;
  bottom: 28px;
  z-index: 1;
  color: #fff;
}

.photo-overlay span {
  display: block;
  margin-bottom: 10px;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.photo-overlay strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.2rem;
}

.trust-strip {
  padding: 0;
  margin: 6px 0 54px;
}

.trust-strip ul {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(91, 119, 72, 0.18);
  border-bottom: 1px solid rgba(91, 119, 72, 0.18);
  background: linear-gradient(90deg, transparent, rgba(236, 244, 223, 0.72) 18%, rgba(236, 244, 223, 0.72) 82%, transparent);
  list-style: none;
}

.trust-strip li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 74px;
  padding: 16px 18px;
  color: #405f35;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  letter-spacing: 0.01em;
}

.benefit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65em;
  height: 1.65em;
  flex: 0 0 auto;
  color: var(--accent-deep);
}

.benefit-icon svg {
  display: block;
  width: 1.35em;
  height: 1.35em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section-heading {
  padding: 26px 0 48px;
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.92rem, 2.45vw, 2.75rem);
  line-height: 1.18;
}

.leaf-divider {
  width: 86px;
  height: 28px;
  margin: 18px auto 0;
  background:
    radial-gradient(circle at 16% 56%, rgba(145, 191, 99, 0.95) 0 12%, transparent 13%),
    radial-gradient(circle at 38% 36%, rgba(145, 191, 99, 0.95) 0 12%, transparent 13%),
    radial-gradient(circle at 58% 56%, rgba(145, 191, 99, 0.95) 0 12%, transparent 13%),
    radial-gradient(circle at 80% 38%, rgba(145, 191, 99, 0.95) 0 12%, transparent 13%);
  position: relative;
}

.leaf-divider::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 10px;
  top: 14px;
  height: 2px;
  background: rgba(145, 191, 99, 0.72);
  transform: rotate(-14deg);
}

.card-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(420px, 1.06fr);
  gap: 30px 44px;
  align-items: stretch;
  max-width: 1120px;
  margin-right: auto;
  margin-left: auto;
  margin-bottom: 70px;
}

.product-card {
  display: grid;
  gap: 0;
  align-content: start;
  background: transparent;
}

.product-card:first-child {
  grid-row: span 3;
}

.product-card:not(:first-child) {
  grid-template-columns: 260px minmax(0, 1fr);
  column-gap: 24px;
  align-items: center;
  min-height: 198px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(116, 130, 97, 0.16);
}

.product-card:not(:first-child):last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.product-card .photo-card {
  min-height: 178px;
  margin-bottom: 0;
}

.product-card:first-child .photo-card {
  min-height: 500px;
  margin-bottom: 20px;
}

.product-card:not(:first-child) .photo-card {
  grid-row: 1 / 5;
}

.product-badge {
  display: none;
  width: fit-content;
  margin: 0 0 10px;
  color: #667a5f;
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.product-card:first-child .product-badge {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(220, 233, 199, 0.72);
  color: #3f6b30;
}

.product-summary {
  display: none;
  max-width: 29em;
  margin: -4px 0 14px;
  color: #5f665c;
  font-size: 0.95rem;
  line-height: 1.58;
}

.product-card:not(:first-child) .product-summary {
  max-width: 27em;
  margin-bottom: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
}

.photo-forest {
  background:
    linear-gradient(180deg, rgba(44, 77, 30, 0.04), rgba(44, 77, 30, 0.08)),
    url("./image/shangda.webp") center / cover no-repeat;
}

.photo-bamboo {
  background:
    linear-gradient(180deg, rgba(44, 77, 30, 0.04), rgba(44, 77, 30, 0.08)),
    url("./image/shangxiao1.webp") center / cover no-repeat;
}

.photo-jade {
  background:
    linear-gradient(180deg, rgba(44, 77, 30, 0.04), rgba(44, 77, 30, 0.08)),
    url("./image/shangxiao2.webp") center / cover no-repeat;
}

.photo-mist {
  background:
    linear-gradient(180deg, rgba(44, 77, 30, 0.04), rgba(44, 77, 30, 0.08)),
    url("./image/shangxiao3.webp") center / cover no-repeat;
}

.product-card h3 {
  margin: 0 0 14px;
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.6;
}

.product-card:first-child h3 {
  max-width: 26em;
  font-family: "Times New Roman", Georgia, serif;
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.28;
}

.product-card:not(:first-child) h3 {
  margin-bottom: 14px;
  font-size: 1.08rem;
  line-height: 1.48;
}

.rating {
  margin-bottom: 10px;
  color: #181a17;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
}

.rating span {
  margin-left: 6px;
  color: var(--muted);
  letter-spacing: 0;
}

.rating .rating-stars {
  margin-left: 0;
  color: #181a17;
  font-size: 1.16rem;
  letter-spacing: 0.08em;
}

.price {
  color: #2b2e2a;
  font-size: 0.86rem;
}

.price s {
  margin-right: 10px;
  color: #767870;
}

.buy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 44px;
  margin-top: 16px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--accent-deep);
  color: #fff;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 12px 24px rgba(78, 122, 59, 0.16);
}

.buy-button:hover {
  background: #3f6b30;
}

.product-card:first-child .buy-button {
  display: flex;
}

.why-choose {
  max-width: 1120px;
  margin: 4px auto 62px;
}

.why-heading {
  padding: 10px 0 34px;
}

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

.why-card {
  min-height: 178px;
  padding: 28px 30px;
  border: 1px solid rgba(116, 130, 97, 0.16);
  border-radius: 8px;
  background: rgba(248, 249, 242, 0.72);
}

.why-card span {
  display: block;
  margin-bottom: 22px;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.why-card h3 {
  margin: 0 0 12px;
  font-family: "Times New Roman", Georgia, serif;
  font-size: 1.45rem;
  line-height: 1.2;
  font-weight: 600;
}

.why-card p {
  max-width: 28em;
  margin: 0;
  color: #555b52;
  font-size: 0.98rem;
  line-height: 1.65;
}

.how-it-works {
  max-width: 1120px;
  margin: 0 auto 58px;
}

.how-heading {
  padding: 0 0 34px;
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9%;
  right: 9%;
  top: 19px;
  height: 1px;
  background: rgba(116, 130, 97, 0.22);
}

.timeline-step {
  position: relative;
  padding-top: 50px;
  text-align: center;
}

.timeline-step::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 50%;
  width: 17px;
  height: 17px;
  border: 4px solid #fbfaf5;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(116, 130, 97, 0.18);
  transform: translateX(-50%);
}

.timeline-step span {
  display: block;
  margin-bottom: 12px;
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.timeline-step h3 {
  max-width: 14em;
  margin: 0 auto;
  color: #2f332d;
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.5;
}

.offer-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
  min-height: 132px;
  margin: 18px 0 30px;
  padding: 28px 52px;
  background: #171715;
}

.offer-copy {
  max-width: 920px;
}

.offer-banner h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(1.28rem, 1.35vw, 1.58rem);
  line-height: 1.2;
}

.offer-banner p {
  max-width: 760px;
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(0.92rem, 0.95vw, 1.05rem);
  line-height: 1.46;
}

.offer-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: #fff;
  color: #171715;
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 700;
  white-space: nowrap;
}

.offer-button:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
}

.review-grid {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding-bottom: 18px;
  margin-bottom: 66px;
  scroll-snap-type: x proximity;
  scrollbar-color: rgba(116, 130, 97, 0.34) transparent;
}

.review-card {
  flex: 0 0 min(360px, 82vw);
  min-height: 230px;
  padding: 30px 28px;
  background: rgba(242, 242, 238, 0.74);
  border-radius: 10px;
  text-align: left;
  scroll-snap-align: start;
}

.review-card p {
  margin: 18px 0 26px;
  color: #222420;
  font-size: 1rem;
  line-height: 1.72;
}

.review-card strong {
  color: #5e645a;
  font-size: 0.92rem;
  font-weight: 500;
}

.faq-section {
  max-width: 920px;
  margin: 0 auto 72px;
}

.faq-heading {
  padding: 8px 0 32px;
}

.faq-list {
  border-top: 1px solid rgba(116, 130, 97, 0.18);
}

.faq-list details {
  border-bottom: 1px solid rgba(116, 130, 97, 0.18);
}

.faq-list summary {
  position: relative;
  display: block;
  padding: 24px 46px 24px 0;
  color: #222420;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.45;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--accent-deep);
  font-size: 1.45rem;
  font-weight: 400;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p {
  max-width: 48em;
  margin: -6px 0 24px;
  color: #5d635a;
  font-size: 0.98rem;
  line-height: 1.7;
}

.site-footer {
  padding: 44px 42px 22px;
  background: #111210;
  color: #f1f2ed;
  font-size: 0.86rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.8fr 0.9fr 1fr;
  gap: 38px;
  padding-bottom: 34px;
}

.footer-column h2,
.footer-column h3 {
  margin: 0 0 18px;
  color: #fff;
  font-family: "Times New Roman", Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
}

.footer-column h2 {
  font-size: 1.65rem;
}

.footer-column h3 {
  font-size: 1.08rem;
}

.footer-column p {
  max-width: 26em;
  margin: 0 0 10px;
  color: rgba(241, 242, 237, 0.74);
  line-height: 1.7;
}

.footer-column a {
  display: block;
  width: fit-content;
  color: rgba(241, 242, 237, 0.74);
  text-decoration: none;
  line-height: 1.9;
}

.footer-column a:hover {
  color: #fff;
}

.footer-column p a {
  display: inline;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid rgba(241, 242, 237, 0.14);
}

.footer-bottom p {
  max-width: 76em;
  margin: 0;
  color: rgba(241, 242, 237, 0.62);
  line-height: 1.6;
}

.policy-main {
  max-width: 880px;
  margin: 0 auto 82px;
  padding: 40px 0 0;
}

.policy-hero {
  padding: 34px 0 36px;
  text-align: center;
}

.policy-hero h1 {
  margin: 0 0 12px;
  font-family: "Times New Roman", Georgia, serif;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.1;
}

.policy-hero p {
  margin: 0;
  color: #666b63;
  font-size: 0.95rem;
}

.policy-content {
  padding: 34px 38px;
  border: 1px solid rgba(116, 130, 97, 0.16);
  border-radius: 8px;
  background: rgba(248, 249, 242, 0.72);
}

.policy-content h2 {
  margin: 34px 0 12px;
  font-family: "Times New Roman", Georgia, serif;
  font-size: 1.55rem;
  line-height: 1.2;
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content p,
.policy-content li {
  color: #464b43;
  font-size: 1rem;
  line-height: 1.75;
}

.policy-content p {
  margin: 0 0 16px;
}

.policy-content ul {
  margin: 0 0 18px;
  padding-left: 1.2rem;
}

.policy-content a {
  color: var(--accent-deep);
  font-weight: 600;
}

.product-detail-main {
  max-width: 1120px;
  margin: 0 auto 82px;
  padding: 42px 0 0;
}

.product-detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(34px, 5vw, 58px);
  align-items: start;
  margin-bottom: 46px;
}

.product-detail-media img {
  display: block;
  width: 100%;
  aspect-ratio: 1.24 / 1;
  object-fit: cover;
  border-radius: 8px;
}

.purchase-panel {
  position: sticky;
  top: 24px;
  padding-top: 2px;
}

.product-eyebrow {
  margin: 0 0 8px;
  color: #6c7468;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.purchase-panel h1 {
  max-width: 11em;
  margin: 0 0 18px;
  color: #171915;
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 400;
  line-height: 1.08;
}

.product-detail-price {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
  color: #20231f;
  font-size: 0.96rem;
}

.product-detail-price s {
  color: #777b72;
}

.product-detail-price strong {
  font-weight: 500;
}

.product-detail-price span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 12px;
  border-radius: 999px;
  background: #171915;
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
}

.checkout-card {
  width: min(100%, 390px);
  padding: 22px 20px;
  border: 1px solid rgba(116, 130, 97, 0.16);
  border-radius: 8px;
  background: rgba(248, 249, 242, 0.78);
}

.checkout-plain {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.checkout-plain .checkout-button {
  min-height: 58px;
  border-radius: 2px;
  background: #ffc439;
  color: #11140f;
  font-size: 1.05rem;
  font-weight: 500;
  box-shadow: none;
}

.checkout-plain .checkout-button:hover {
  background: #f4b82f;
}

.checkout-plain .checkout-note {
  margin-top: 10px;
  font-size: 0.74rem;
  line-height: 1.35;
  white-space: nowrap;
}

.checkout-includes {
  margin-top: 26px;
}

.checkout-includes h2 {
  margin-bottom: 16px;
}

.checkout-includes ul {
  margin-bottom: 0;
}

.checkout-card h2 {
  margin: 0 0 14px;
  color: #22251f;
  font-family: "Times New Roman", Georgia, serif;
  font-size: 1.32rem;
  line-height: 1.2;
}

.checkout-card ul {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.checkout-card li {
  position: relative;
  padding-left: 22px;
  color: #444a40;
  font-size: 0.94rem;
  line-height: 1.48;
}

.checkout-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-50%);
}

.checkout-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: var(--accent-deep);
  color: #fff;
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(78, 122, 59, 0.16);
}

.checkout-button:hover {
  background: #3f6b30;
}

.checkout-note {
  margin: 14px 0 0;
  color: #4d534b;
  font-size: 0.82rem;
  line-height: 1.56;
}

.checkout-meta {
  margin: 10px 0 0;
  color: #697066;
  font-size: 0.76rem;
  font-weight: 600;
  line-height: 1.45;
}

.course-content {
  max-width: 980px;
  color: #30342d;
}

.course-content h2 {
  margin: 34px 0 12px;
  color: var(--accent-deep);
  font-size: 1.02rem;
  line-height: 1.45;
}

.course-content h2:first-of-type {
  margin-top: 28px;
}

.course-content p,
.course-content li {
  color: #3f443b;
  font-size: 0.98rem;
  line-height: 1.82;
}

.course-content p {
  margin: 0 0 16px;
}

.course-content ul {
  margin: 0 0 20px;
  padding-left: 1.25rem;
}

.about-main {
  max-width: 1040px;
  margin: 0 auto 86px;
  padding: 34px 0 0;
}

.about-hero {
  max-width: 840px;
  margin: 0 auto 64px;
  padding: 54px 0 44px;
  text-align: center;
}

.about-eyebrow {
  margin: 0 0 14px;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.about-hero h1,
.about-section h2,
.about-panel h2,
.about-reminder h2,
.about-cta h2 {
  margin: 0;
  font-family: "Times New Roman", Georgia, serif;
  color: #1f211d;
  font-weight: 600;
  line-height: 1.12;
}

.about-hero h1 {
  max-width: 12em;
  margin: 0 auto 28px;
  font-size: clamp(2.4rem, 5vw, 4.3rem);
}

.about-hero p {
  max-width: 46em;
  margin: 0 auto 16px;
  color: #4b5148;
  font-size: 1.1rem;
  line-height: 1.8;
}

.about-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(34px, 6vw, 78px);
  padding: 46px 0;
  border-top: 1px solid rgba(116, 130, 97, 0.16);
}

.about-section h2,
.about-panel h2,
.about-reminder h2,
.about-cta h2 {
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.about-copy p,
.about-copy li,
.about-reminder p,
.about-cta p {
  color: #464b43;
  font-size: 1.03rem;
  line-height: 1.8;
}

.about-copy p {
  margin: 0 0 18px;
}

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

.about-list li {
  position: relative;
  padding-left: 24px;
}

.about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.about-panel {
  margin: 26px 0;
  padding: 42px;
  border: 1px solid rgba(116, 130, 97, 0.16);
  border-radius: 8px;
  background: rgba(248, 249, 242, 0.72);
}

.about-panel-heading {
  max-width: 620px;
  margin-bottom: 30px;
}

.about-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.about-feature-grid article {
  padding-top: 18px;
  border-top: 2px solid rgba(144, 185, 107, 0.5);
}

.about-feature-grid h3 {
  margin: 0 0 10px;
  color: #2f4e28;
  font-size: 1.02rem;
}

.about-feature-grid p {
  margin: 0;
  color: #5a6156;
  font-size: 0.96rem;
  line-height: 1.65;
}

.about-reminder,
.about-cta {
  margin-top: 34px;
  padding: 38px 42px;
  border-top: 1px solid rgba(116, 130, 97, 0.16);
  border-bottom: 1px solid rgba(116, 130, 97, 0.16);
  background: linear-gradient(90deg, transparent, rgba(236, 244, 223, 0.7) 16%, rgba(236, 244, 223, 0.7) 84%, transparent);
}

.about-reminder p {
  max-width: 66em;
  margin: 16px 0 0;
}

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

.about-cta p {
  max-width: 42em;
  margin: 16px auto 24px;
}

.about-cta .header-cta {
  width: fit-content;
  margin: 0 auto;
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-copy {
    min-height: auto;
  }

  .card-grid {
    grid-template-columns: 1fr;
    max-width: 760px;
  }

  .product-card:first-child {
    grid-row: auto;
  }

  .product-card:not(:first-child) {
    grid-template-columns: 190px minmax(0, 1fr);
    min-height: 198px;
  }

  .product-card:first-child .photo-card {
    min-height: 390px;
  }

  .why-grid {
    grid-template-columns: 1fr;
  }

  .timeline {
    gap: 22px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-detail-hero {
    grid-template-columns: 1fr;
  }

  .purchase-panel {
    position: static;
  }

  .purchase-panel h1 {
    max-width: 14em;
  }

  .hero-kicker {
    max-width: none;
    font-size: 2rem;
  }

  .hero-body {
    max-width: 34em;
    font-size: 1.06rem;
  }

  .lede {
    max-width: 100%;
    font-size: 0.88rem;
  }

  .offer-banner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .offer-button {
    width: fit-content;
  }
}

@media (max-width: 760px) {
  body {
    overflow-x: hidden;
  }

  .page-shell {
    width: 100%;
    padding: 0 16px 24px;
  }

  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    padding: 34px 22px 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-header {
    position: fixed;
    top: 44px;
    left: 0;
    right: 0;
    z-index: 5;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px 12px;
    align-items: center;
    min-height: auto;
    padding: 7px 16px 8px;
    margin-bottom: 0;
    background: rgba(255, 254, 251, 0.94);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(116, 130, 97, 0.14);
  }

  .mobile-mission-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 6;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    min-height: 44px;
    padding: 4px 12px;
    background: rgba(255, 254, 251, 0.94);
    color: #667a5f;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(116, 130, 97, 0.14);
    font-size: clamp(0.72rem, 3.1vw, 0.84rem);
    font-weight: 500;
    line-height: 1.12;
    letter-spacing: 0.01em;
    text-align: center;
    white-space: normal;
  }

  .mobile-mission-bar strong,
  .mobile-mission-bar span {
    display: block;
    font-weight: inherit;
  }

  .mobile-mission-bar span {
    max-width: 100%;
  }

  .nav-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }

  .nav-toggle-button {
    position: relative;
    z-index: 8;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #1f211d;
    cursor: pointer;
  }

  .nav-toggle-button span {
    display: block;
    width: 24px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.2s ease, opacity 0.2s ease;
    transform-origin: center;
  }

  .nav-backdrop {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: min(82vw, 320px);
    z-index: 6;
    display: block;
    background: transparent;
    border: 0;
    opacity: 0;
    pointer-events: none;
  }

  .site-header.nav-open .nav-toggle-button span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle-button span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .nav-toggle-button span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
    justify-self: start;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 7;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: min(82vw, 320px);
    height: 100vh;
    height: 100dvh;
    padding: 108px 28px 28px;
    overflow-y: auto;
    background: #fffefb;
    border-right: 1px solid rgba(116, 130, 97, 0.18);
    box-shadow: 24px 0 56px rgba(31, 33, 29, 0.14);
    transform: translateX(-110%);
    transition: transform 0.24s ease;
  }

  .nav a {
    padding: 18px 0;
    border-bottom: 1px solid rgba(116, 130, 97, 0.16);
    color: #252821;
    font-size: 1.28rem;
    line-height: 1.2;
  }

  .site-header.nav-open .nav {
    transform: translateX(0);
  }

  .site-header.nav-open .nav-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .brand-logo {
    height: 34px;
  }

  .header-cta {
    display: none;
  }

  main,
  section,
  .hero,
  .hero-media,
  .hero-copy,
  .photo-card {
    max-width: 100%;
    min-width: 0;
  }

  main {
    padding-top: 114px;
  }

  .hero {
    position: relative;
    display: block;
    min-height: 0;
    padding: 0;
    margin: 10px 0 38px;
    overflow: hidden;
    border-radius: 28px;
    background: #edf5e3;
  }

  .hero-media {
    position: relative;
    margin: 0;
  }

  .photo-card-large {
    position: relative;
    min-height: 0;
    height: auto;
    aspect-ratio: auto;
    border-radius: 0;
    background:
      linear-gradient(180deg, rgba(20, 30, 16, 0.04) 0%, rgba(20, 30, 16, 0.08) 62%, rgba(245, 250, 238, 0.58) 88%, rgba(251, 250, 245, 0.94) 100%),
      url("./image/zhutu.jpg") center top / 100% auto no-repeat;
  }

  .photo-card-large::before {
    content: "";
    display: block;
    aspect-ratio: 2238 / 1920;
  }

  .photo-card-large::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 30%;
    background: linear-gradient(180deg, rgba(251, 250, 245, 0) 0%, rgba(251, 250, 245, 0.58) 66%, rgba(251, 250, 245, 0.98) 100%);
    pointer-events: none;
  }

  .hero-copy {
    position: relative;
    z-index: 1;
    margin-top: -82px;
    padding: 68px 20px 24px;
    background: linear-gradient(180deg, rgba(251, 250, 245, 0) 0%, rgba(251, 250, 245, 0.86) 34%, rgba(251, 250, 245, 0.98) 100%);
  }

  .hero-copy-top {
    flex-direction: row;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 18px;
  }

  .hero-leaf {
    display: none;
  }

  .hero-kicker {
    max-width: 11em;
    min-width: 0;
    font-size: 2rem;
    line-height: 1.08;
    overflow-wrap: break-word;
  }

  .hero-body {
    max-width: 29ch;
    margin-bottom: 18px;
    font-size: 0.98rem;
    line-height: 1.56;
  }

  .trust-strip {
    padding: 6px 0 0;
    margin: 0 0 46px;
  }

  .trust-strip ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 18px;
    padding: 0 18px;
    border: 0;
    background: transparent;
  }

  .trust-strip li {
    min-height: 0;
    padding: 0;
    flex-direction: column;
    gap: 6px;
    color: #5f7358;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.3;
  }

  .trust-strip li:nth-child(n + 3) {
    border-top: 0;
  }

  .benefit-icon {
    display: inline-flex;
    width: 1.25em;
    height: 1.25em;
    color: rgba(78, 122, 59, 0.72);
    font-size: 1rem;
  }

  .benefit-icon svg {
    width: 1.2em;
    height: 1.2em;
    stroke-width: 1.55;
  }

  .lede {
    max-width: none;
    color: #687162;
    font-size: 0.82rem;
    line-height: 1.5;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 34px;
    margin-bottom: 48px;
  }

  .review-grid {
    gap: 14px;
    padding-right: 16px;
  }

  .review-card {
    flex-basis: 74vw;
    min-height: 205px;
    padding: 24px 22px;
  }

  .review-card p {
    margin: 16px 0 22px;
    font-size: 0.92rem;
    line-height: 1.64;
  }

  .product-card {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .product-card:not(:first-child) {
    grid-template-columns: 1fr;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .product-card .photo-card {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .product-card:first-child .photo-card {
    min-height: 0;
    aspect-ratio: 1 / 0.94;
  }

  .product-card:not(:first-child) .photo-card {
    grid-row: auto;
  }

  .product-card h3,
  .product-card:first-child h3,
  .product-card:not(:first-child) h3 {
    margin-bottom: 8px;
    font-size: 1.08rem;
    line-height: 1.42;
    overflow-wrap: anywhere;
  }

  .product-card:first-child h3 {
    font-size: 1.25rem;
  }

  .product-badge {
    display: block;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(220, 233, 199, 0.72);
    color: #3f6b30;
    margin-top: 4px;
    margin-bottom: 8px;
    font-size: 0.68rem;
  }

  .product-card:first-child .product-badge {
    margin-top: 12px;
  }

  .product-card:not(:first-child) .product-badge {
    margin-top: 14px;
  }

  .product-summary,
  .product-card:not(:first-child) .product-summary {
    display: block;
    max-width: 32em;
    margin-bottom: 12px;
    font-size: 0.86rem;
    line-height: 1.55;
  }

  .buy-button {
    width: 100%;
    min-height: 46px;
    margin-top: 8px;
  }

  .section-heading {
    padding: 22px 0 30px;
  }

  .section-heading h2 {
    font-size: 1.8rem;
  }

  .why-choose {
    margin-bottom: 42px;
  }

  .why-card {
    min-height: auto;
    padding: 22px 20px;
  }

  .why-card h3 {
    font-size: 1.28rem;
  }

  .faq-section {
    margin-bottom: 48px;
  }

  .faq-list summary {
    padding: 20px 38px 20px 0;
    font-size: 1rem;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 420px;
    margin: 0 auto;
  }

  .timeline::before {
    left: 12px;
    right: auto;
    top: 12px;
    bottom: 12px;
    width: 1px;
    height: auto;
  }

  .timeline-step {
    padding: 0 0 28px 44px;
    text-align: left;
  }

  .timeline-step:last-child {
    padding-bottom: 0;
  }

  .timeline-step::before {
    left: 12px;
    top: 2px;
    transform: translateX(-50%);
  }

  .timeline-step h3 {
    margin: 0;
  }

  .offer-banner {
    min-height: 184px;
    gap: 18px;
    padding: 22px 16px 24px;
  }

  .offer-banner h2 {
    font-size: 1.18rem;
    line-height: 1.22;
  }

  .offer-banner p {
    margin-top: 12px;
    font-size: 0.86rem;
    line-height: 1.48;
  }

  .offer-button {
    width: 100%;
    min-height: 44px;
  }

  .policy-main {
    padding-top: 122px;
  }

  .policy-content {
    padding: 26px 20px;
  }

  .product-detail-main {
    padding-top: 122px;
  }

  .product-detail-hero {
    gap: 26px;
    margin-bottom: 36px;
  }

  .product-detail-media img {
    aspect-ratio: 1.08 / 1;
  }

  .purchase-panel h1 {
    max-width: 11em;
    font-size: 1.82rem;
    line-height: 1.1;
    overflow-wrap: break-word;
  }

  .checkout-card {
    width: 100%;
  }

  .checkout-plain .checkout-note {
    white-space: normal;
  }

  .payment-options {
    margin-left: auto;
    margin-right: auto;
  }

  .course-content h2 {
    margin-top: 28px;
  }

  .about-main {
    padding-top: 122px;
  }

  .about-hero {
    padding: 34px 0 28px;
    margin-bottom: 34px;
    text-align: left;
  }

  .about-hero h1,
  .about-hero p {
    margin-left: 0;
    margin-right: 0;
  }

  .about-section {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 34px 0;
  }

  .about-panel {
    padding: 28px 20px;
  }

  .about-feature-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .about-reminder,
  .about-cta {
    padding: 30px 20px;
  }
}