:root {
  color-scheme: light;
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, sans-serif;
  background: #f4f7f8;
  color: #17202a;
  --ink: #17202a;
  --muted: #5f6f7a;
  --line: #dfe7ea;
  --soft: #edf4f2;
  --teal: #0b7568;
  --teal-dark: #07584f;
  --gold: #d99a2b;
  --rose: #b3475f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(120deg, rgba(11, 117, 104, 0.12), transparent 34%),
    linear-gradient(210deg, rgba(217, 154, 43, 0.12), transparent 28%),
    #f4f7f8;
  color: var(--ink);
}

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

button,
input,
select {
  font: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(223, 231, 234, 0.86);
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(244, 247, 248, 0.86);
  backdrop-filter: blur(16px);
}

.brand,
.logo-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-image {
  display: block;
  width: clamp(240px, 27vw, 330px);
  height: 78px;
  border-radius: 8px;
  object-fit: contain;
  object-position: left center;
}

.brand strong {
  display: block;
  font-size: 18px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.brand-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 24px rgba(23, 32, 42, 0.18);
}

.brand-mark svg {
  width: 30px;
  height: 30px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.brand-mark svg circle {
  fill: var(--gold);
  stroke: none;
}

.brand-mark.large {
  width: 58px;
  height: 58px;
}

.brand-mark.large svg {
  width: 42px;
  height: 42px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  min-height: 38px;
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--soft);
  color: var(--ink);
}

.nav-links .nav-cta,
.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}

.nav-links .nav-cta:hover,
.primary-link:hover,
.nav-links .nav-cta:focus-visible,
.primary-link:focus-visible {
  background: var(--teal-dark);
  color: #fff;
}

.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 16px;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.page-shell {
  display: grid;
  grid-template-columns: minmax(260px, 330px) minmax(0, 1fr);
  gap: 26px;
  width: min(1180px, calc(100% - 36px));
  margin: 30px auto 44px;
}

.store-shell {
  display: grid;
  gap: 18px;
  width: min(1220px, calc(100% - 36px));
  margin: 28px auto 44px;
}

.profile-panel {
  display: grid;
  align-content: start;
  gap: 16px;
}

.profile-card,
.side-section,
.section-block,
.hero,
.store-hero,
.info-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 40px rgba(23, 32, 42, 0.07);
}

.profile-card {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.eyebrow {
  margin-bottom: 8px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.profile-card h1 {
  margin-bottom: 0;
  font-size: 34px;
  line-height: 1.1;
}

.profile-copy {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.domain-box {
  display: grid;
  gap: 6px;
  border-left: 4px solid var(--gold);
  padding: 12px 14px;
  background: #fff8ea;
}

.domain-box span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.domain-box strong {
  overflow-wrap: anywhere;
}

.side-section {
  padding: 18px;
}

.side-section h2,
.section-heading h2 {
  margin-bottom: 14px;
  font-size: 22px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list span {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--teal);
  content: "✓";
  font-weight: 900;
}

.content-panel {
  display: grid;
  gap: 18px;
}

.store-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: 22px;
  align-items: end;
  padding: clamp(24px, 5vw, 42px);
}

.store-hero h1 {
  margin-bottom: 14px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1;
}

.store-hero p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.store-status {
  display: grid;
  gap: 8px;
  border-left: 4px solid var(--gold);
  padding: 14px 16px;
  background: #fff8ea;
}

.store-status span,
.store-status small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.store-status strong {
  overflow-wrap: anywhere;
  font-size: 18px;
}

.hero {
  padding: clamp(24px, 5vw, 46px);
}

.hero h2 {
  max-width: 820px;
  margin-bottom: 16px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
}

.hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.section-block {
  padding: clamp(20px, 4vw, 30px);
}

.section-heading {
  margin-bottom: 18px;
}

.product-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.product-section {
  overflow: visible;
}

.inventory-count {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  min-width: 780px;
}

.product-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(162px, 186px);
  gap: 14px;
  align-items: start;
}

.product-scroller {
  overflow-x: auto;
  padding-bottom: 2px;
}

.product-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 310px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.product-card.featured {
  border-color: rgba(11, 117, 104, 0.34);
}

.product-media {
  display: grid;
  min-height: 116px;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(11, 117, 104, 0.18), rgba(11, 117, 104, 0.04)),
    #edf4f2;
}

.product-media span {
  display: inline-grid;
  min-width: 74px;
  min-height: 54px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--teal);
  font-size: 18px;
  font-weight: 950;
  box-shadow: 0 16px 36px rgba(23, 32, 42, 0.1);
}

.claude-media {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: start;
  padding: 22px;
  text-align: left;
  background:
    linear-gradient(135deg, rgba(217, 154, 43, 0.2), rgba(11, 117, 104, 0.06)),
    #fbf7ef;
}

.claude-media .claude-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  min-width: 64px;
  height: 50px;
  min-height: 50px;
  border-color: rgba(217, 154, 43, 0.32);
  background: #fff;
}

.claude-media .claude-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.claude-media strong {
  align-self: center;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.1;
}

.chatgpt-media {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: start;
  padding: 22px;
  text-align: left;
  background:
    linear-gradient(135deg, rgba(11, 117, 104, 0.2), rgba(23, 32, 42, 0.05)),
    #edf4f2;
}

.chatgpt-media .chatgpt-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  min-width: 64px;
  height: 50px;
  min-height: 50px;
  border-color: rgba(11, 117, 104, 0.28);
  background: #fff;
}

.chatgpt-media .chatgpt-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.chatgpt-media strong {
  align-self: center;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.1;
}

.gemini-media {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: start;
  padding: 22px;
  text-align: left;
  background:
    linear-gradient(135deg, rgba(66, 133, 244, 0.2), rgba(179, 71, 95, 0.06)),
    #f2f6ff;
}

.gemini-media .gemini-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  min-width: 64px;
  height: 50px;
  min-height: 50px;
  border-color: rgba(66, 133, 244, 0.28);
  background: #fff;
}

.gemini-media .gemini-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.gemini-media strong {
  align-self: center;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.1;
}

.gmail-media {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: start;
  padding: 22px;
  text-align: left;
  background:
    linear-gradient(135deg, rgba(234, 67, 53, 0.16), rgba(66, 133, 244, 0.08)),
    #fff7f5;
}

.gmail-media .gmail-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  min-width: 64px;
  height: 50px;
  min-height: 50px;
  border-color: rgba(234, 67, 53, 0.24);
  background: #fff;
}

.gmail-media .gmail-logo img {
  width: 40px;
  height: 31px;
  object-fit: contain;
}

.gmail-media strong {
  align-self: center;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.1;
}

.product-media.accent-gold {
  background:
    linear-gradient(135deg, rgba(217, 154, 43, 0.22), rgba(217, 154, 43, 0.05)),
    #fff8ea;
}

.product-media.accent-gold span {
  color: #9a650e;
}

.product-media.accent-rose {
  background:
    linear-gradient(135deg, rgba(179, 71, 95, 0.18), rgba(179, 71, 95, 0.04)),
    #fff5f7;
}

.product-media.accent-rose span {
  color: var(--rose);
}

.product-media.accent-blue {
  background:
    linear-gradient(135deg, rgba(48, 99, 142, 0.18), rgba(48, 99, 142, 0.04)),
    #f1f7fb;
}

.product-media.accent-blue span {
  color: #30638e;
}

.product-media.accent-green {
  background:
    linear-gradient(135deg, rgba(70, 132, 82, 0.18), rgba(70, 132, 82, 0.04)),
    #f1f8f0;
}

.product-media.accent-green span {
  color: #468452;
}

.product-media.accent-slate {
  background:
    linear-gradient(135deg, rgba(23, 32, 42, 0.16), rgba(23, 32, 42, 0.04)),
    #f3f5f6;
}

.product-media.accent-slate span {
  color: var(--ink);
}

.product-body {
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 18px 18px 14px;
}

.product-category {
  color: var(--teal);
  font-size: 12px;
  font-weight: 950;
}

.product-body h3 {
  margin-bottom: 0;
  font-size: 22px;
}

.product-body p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.product-points {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-points li {
  position: relative;
  padding-left: 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.product-points li::before {
  position: absolute;
  left: 0;
  color: var(--teal);
  content: "•";
  font-weight: 900;
}

.product-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 14px 18px;
}

.product-foot strong {
  color: var(--ink);
}

.price-block {
  display: grid;
  gap: 2px;
}

.price-block strong {
  color: var(--rose);
  font-size: 24px;
  line-height: 1;
}

.price-block span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.price-block .original-price {
  position: relative;
  display: inline-block;
  width: fit-content;
}

.price-block .original-price::after {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  top: 50%;
  height: 1px;
  background: color-mix(in srgb, var(--muted) 55%, transparent);
  transform: rotate(-18deg);
  transform-origin: center;
}

.product-foot > button,
.purchase-button {
  min-height: 36px;
  border: 0;
  border-radius: 8px;
  padding: 0 12px;
  background: var(--teal);
  color: #fff;
  font-weight: 900;
}

.product-foot > button:disabled {
  background: var(--soft);
  color: var(--muted);
}

.purchase-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.purchase-button {
  order: 2;
}

.quantity-control {
  order: 1;
}

.quantity-control {
  display: inline-grid;
  grid-template-columns: 28px 30px 28px;
  align-items: center;
  min-height: 36px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.quantity-button {
  width: 28px;
  height: 36px;
  border: 0;
  background: transparent;
  color: var(--teal);
  cursor: pointer;
  font-size: 16px;
  font-weight: 900;
}

.quantity-button:hover,
.quantity-button:focus-visible {
  background: var(--soft);
}

.quantity-value {
  color: var(--ink);
  text-align: center;
  font-size: 13px;
  font-weight: 900;
}

.risk-section {
  display: grid;
  gap: 9px;
  padding: clamp(12px, 2.4vw, 18px);
}

.risk-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}

.risk-icon {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 8px;
  background: #fff8ea;
  color: #9a650e;
  font-size: 16px;
  font-weight: 900;
}

.risk-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.risk-list article,
.disclaimer-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px;
  background: #fff;
}

.risk-list h3,
.disclaimer-box h3 {
  margin-bottom: 4px;
  font-size: 14px;
}

.risk-list p,
.disclaimer-box p,
.risk-confirm {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.risk-confirm {
  border-left: 3px solid var(--gold);
  padding: 7px 9px;
  background: #fff8ea;
  color: var(--ink);
  font-weight: 800;
}

.flow-section {
  position: sticky;
  top: 106px;
  align-self: start;
  padding: 12px;
}

.resource-card {
  display: grid;
  gap: 12px;
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
}

.card-icon {
  display: inline-grid;
  width: 50px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal);
  font-weight: 900;
}

.resource-card h3,
.steps h3 {
  margin-bottom: 0;
  font-size: 20px;
}

.resource-card p,
.steps p,
.split-block p,
.principle-list span {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

.resource-card a {
  align-self: end;
  color: var(--teal);
  font-weight: 900;
}

.split-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 330px);
  gap: 24px;
  align-items: start;
}

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

.info-panel {
  padding: clamp(20px, 4vw, 28px);
}

.info-panel h2 {
  margin-bottom: 14px;
  font-size: 22px;
}

.principle-list {
  display: grid;
  gap: 10px;
}

.principle-list div {
  display: grid;
  gap: 5px;
  border-left: 4px solid var(--rose);
  padding: 12px 14px;
  background: #fff5f7;
}

.principle-list strong {
  font-size: 18px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.flow-section .steps {
  grid-template-columns: 1fr;
  gap: 7px;
}

.steps article {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fff;
}

.flow-section .steps article {
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 3px 7px;
  align-items: start;
  padding: 9px;
}

.steps span {
  color: var(--gold);
  font-size: 28px;
  font-weight: 900;
}

.flow-section .steps span {
  grid-row: span 2;
  font-size: 18px;
  line-height: 1;
}

.flow-section .steps h3 {
  font-size: 14px;
}

.flow-section .steps p {
  font-size: 11px;
  line-height: 1.45;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 14px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--teal);
  font-size: 14px;
}

td {
  color: var(--muted);
  line-height: 1.6;
}

td:first-child {
  color: var(--ink);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding: 24px 18px 34px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 860px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav-links a {
    flex: 0 0 auto;
  }

  .page-shell {
    grid-template-columns: 1fr;
    width: min(100% - 28px, 720px);
    margin-top: 18px;
  }

  .store-shell {
    width: min(100% - 28px, 760px);
    margin-top: 18px;
  }

  .store-hero,
  .product-showcase,
  .store-info-grid {
    grid-template-columns: 1fr;
  }

  .flow-section {
    position: static;
  }

  .resource-grid,
  .risk-list,
  .split-block,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero h2 {
    font-size: 36px;
  }
}

@media (max-width: 520px) {
  .brand-image {
    width: 225px;
    height: 69px;
  }

  .brand strong {
    font-size: 16px;
  }

  .hero,
  .store-hero,
  .section-block,
  .profile-card,
  .side-section,
  .info-panel {
    padding: 18px;
  }

  .store-hero h1 {
    font-size: 40px;
  }

  .hero h2 {
    font-size: 30px;
  }

  .hero p {
    font-size: 16px;
  }

  .store-hero p {
    font-size: 16px;
  }

  .product-heading,
  .product-foot {
    align-items: flex-start;
    flex-direction: column;
  }

  .inventory-count {
    white-space: normal;
  }

  .site-footer {
    align-items: center;
    flex-direction: column;
    gap: 6px;
  }
}