:root {
  --ink: #172117;
  --muted: #5f6858;
  --line: #dde7d2;
  --soft: #f7faf0;
  --mist: #eef6df;
  --leaf: #3f812d;
  --leaf-dark: #2d6420;
  --water: #527b38;
  --cream: #fffef6;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(52, 82, 32, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.96);
  backdrop-filter: blur(14px);
}

.header-inner {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 22px;
}

.brand {
  display: grid;
  gap: 0;
  min-width: 150px;
  line-height: 1;
}

.brand span {
  color: var(--water);
  font-size: 13px;
  font-weight: 800;
}

.brand strong {
  margin-top: 3px;
  color: var(--ink);
  font-size: 24px;
  font-weight: 900;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.desktop-nav a:hover,
.site-footer a:hover {
  color: var(--leaf);
}

.header-cta,
.primary-action,
.secondary-action,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 900;
  white-space: nowrap;
}

.header-cta,
.primary-action,
.contact-form button {
  border: 1px solid var(--leaf);
  background: var(--leaf);
  color: #fff;
  padding: 0 18px;
}

.secondary-action {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 0 18px;
}

.mobile-menu {
  display: none;
}

.home-hero,
.product-shell,
.split-section,
.keyword-section,
.home-shop-band,
.content-section,
.spec-section,
.fqa-section,
.article-page,
.contact-page,
.legal-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 22px;
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  align-items: center;
  gap: 52px;
  min-height: 620px;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--water);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: 56px;
  line-height: 1.02;
}

h2 {
  margin-bottom: 14px;
  font-size: 34px;
  line-height: 1.12;
}

p {
  color: var(--muted);
  font-size: 17px;
}

.hero-copy p {
  max-width: 620px;
  font-size: 19px;
}

.hero-actions,
.purchase-actions,
.contact-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-product {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.hero-product img {
  width: 100%;
  aspect-ratio: 1 / 1.04;
  object-fit: cover;
  background: var(--soft);
}

.hero-product div {
  padding: 18px;
}

.hero-product strong,
.hero-product span {
  display: block;
}

.hero-product span {
  margin-top: 4px;
  color: var(--muted);
}

.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px 32px;
  gap: 12px;
}

.trust-bar div,
.feature-grid article,
.policy-notice,
.purchase-box,
.article-product,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.trust-bar div {
  padding: 18px;
}

.trust-bar strong,
.trust-bar span,
.feature-grid strong,
.feature-grid span,
.policy-notice strong,
.policy-notice span {
  display: block;
}

.trust-bar span,
.feature-grid span,
.policy-notice span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

.split-section,
.spec-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 32px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-grid article {
  padding: 18px;
}

.keyword-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 10px;
}

.keyword-cloud span {
  border: 1px solid #b9d8c5;
  border-radius: 999px;
  background: var(--mist);
  color: var(--leaf-dark);
  font-size: 13px;
  font-weight: 850;
  padding: 8px 12px;
}

.home-shop-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  align-items: center;
}

.purchase-box {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.quantity-control {
  display: grid;
  grid-template-columns: 42px 1fr 42px;
  align-items: center;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.quantity-control button {
  height: 44px;
  border: 0;
  background: var(--soft);
  color: var(--ink);
  cursor: pointer;
  font-size: 20px;
  font-weight: 900;
}

.quantity-control strong {
  text-align: center;
}

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

.payment-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.payment-strip span {
  border-radius: 5px;
  background: #17211e;
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  padding: 6px 8px;
}

.policy-notice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto 32px;
  gap: 14px;
  padding: 16px 22px;
}

.policy-notice a {
  color: var(--leaf);
  font-weight: 900;
}

.product-shell {
  display: grid;
  grid-template-columns: minmax(320px, 0.92fr) minmax(0, 1.08fr);
  gap: 40px;
  align-items: start;
}

.gallery {
  position: sticky;
  top: 88px;
  display: grid;
  gap: 12px;
}

.main-image {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.main-image img {
  width: 100%;
  aspect-ratio: 1 / 1.04;
  object-fit: cover;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.thumbs button {
  overflow: hidden;
  border: 2px solid transparent;
  border-radius: 7px;
  background: #fff;
  cursor: pointer;
  padding: 0;
}

.thumbs button.active {
  border-color: var(--leaf);
}

.thumbs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.product-summary h1 {
  font-size: 44px;
}

.price-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 18px 0;
}

.price-line strong {
  font-size: 30px;
}

.price-line span {
  color: var(--muted);
  font-weight: 800;
}

.quick-points {
  display: grid;
  gap: 9px;
  margin: 0 0 18px;
  padding-left: 20px;
  color: var(--ink);
}

.quick-points li::marker {
  color: var(--leaf);
}

.content-section {
  padding-top: 22px;
}

.content-section p {
  max-width: 920px;
}

.spec-section table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.spec-section th,
.spec-section td {
  border-bottom: 1px solid var(--line);
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
}

.spec-section th {
  width: 38%;
  color: var(--muted);
}

.fqa-section {
  padding-top: 10px;
}

.fqa-list {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.fqa-item + .fqa-item {
  border-top: 1px solid var(--line);
}

.fqa-item button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 0;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  padding: 18px;
  text-align: left;
  font-weight: 900;
}

.fqa-item b {
  color: var(--muted);
  font-size: 20px;
}

.fqa-item p {
  margin: 0;
  padding: 0 18px 18px;
}

.article-page article {
  max-width: 860px;
}

.article-page h1 {
  font-size: 46px;
}

.article-page h2 {
  margin-top: 30px;
  font-size: 25px;
}

.article-product {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  margin: 28px 0;
  padding: 12px;
}

.article-product img {
  aspect-ratio: 1;
  border-radius: 6px;
  object-fit: cover;
}

.article-product strong,
.article-product span,
.article-product a {
  display: block;
}

.article-product a {
  margin-top: 10px;
  color: var(--leaf);
  font-weight: 900;
}

.contact-page {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: 36px;
  align-items: start;
}

.contact-options a {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--leaf-dark);
  font-weight: 900;
  padding: 12px 14px;
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 20px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px;
}

.legal-page {
  max-width: 860px;
}

.legal-page h1 {
  font-size: 42px;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(220px, 0.85fr) minmax(180px, 0.6fr);
  gap: 30px;
  max-width: 1180px;
  margin: 30px auto 0;
  border-top: 1px solid var(--line);
  padding: 32px 22px 42px;
}

.site-footer span,
.site-footer strong,
.site-footer a,
.site-footer small {
  display: block;
}

.site-footer span {
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 900;
}

.site-footer a,
.site-footer small {
  margin-top: 6px;
  color: var(--muted);
}

@media (max-width: 820px) {
  .header-inner {
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 8px;
    padding: 12px 14px 14px;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .brand {
    grid-column: 1 / -1;
  }

  .mobile-menu {
    display: block;
    grid-column: 1 / -1;
    justify-self: start;
  }

  .hamburger {
    display: grid;
    width: 40px;
    height: 34px;
    place-content: center;
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
  }

  .hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
  }

  .mobile-menu-panel {
    position: absolute;
    top: 76px;
    left: 14px;
    display: grid;
    min-width: 168px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .mobile-menu-panel[hidden] {
    display: none;
  }

  .mobile-menu-panel a {
    padding: 16px 18px;
    font-weight: 900;
  }

  .mobile-menu-panel a + a {
    border-top: 1px solid var(--line);
  }

  .home-hero,
  .product-shell,
  .split-section,
  .keyword-section,
  .home-shop-band,
  .spec-section,
  .contact-page,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .home-hero {
    gap: 28px;
    min-height: auto;
    padding-top: 34px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 28px;
  }

  .trust-bar,
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gallery {
    position: static;
  }

  .product-summary h1 {
    font-size: 36px;
  }

  .policy-notice {
    grid-template-columns: 1fr;
    margin-left: 14px;
    margin-right: 14px;
  }
}

@media (max-width: 520px) {
  .home-hero,
  .product-shell,
  .split-section,
  .keyword-section,
  .home-shop-band,
  .content-section,
  .spec-section,
  .fqa-section,
  .article-page,
  .contact-page,
  .legal-page {
    padding-left: 14px;
    padding-right: 14px;
  }

  h1 {
    font-size: 34px;
  }

  .trust-bar,
  .feature-grid,
  .purchase-actions,
  .article-product {
    grid-template-columns: 1fr;
  }

  .thumbs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .site-footer {
    padding-left: 14px;
    padding-right: 14px;
  }
}