:root {
  --usegeo-color-bg: #ffffff;
  --usegeo-color-surface: #f4f4f4;
  --usegeo-color-surface-strong: #e9eefc;
  --usegeo-color-border: #dde1e6;
  --usegeo-color-text: #161616;
  --usegeo-color-muted: #525252;
  --usegeo-color-muted-soft: #6f6f6f;
  --usegeo-color-primary: #0f62fe;
  --usegeo-color-accent: #ff6b00;
  --usegeo-color-primary-ink: #0b3fb4;
  --usegeo-radius-lg: 20px;
  --usegeo-radius-md: 14px;
  --usegeo-radius-sm: 999px;
  --usegeo-shadow: 0 18px 40px rgba(15, 98, 254, 0.06);
  --usegeo-shadow-soft: 0 10px 30px rgba(22, 22, 22, 0.05);
  --usegeo-shell: 1180px;
  --usegeo-transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--usegeo-color-text);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

a:hover {
  color: var(--usegeo-color-primary);
}

input,
button {
  font: inherit;
}

button {
  transition: transform var(--usegeo-transition), filter var(--usegeo-transition), background-color var(--usegeo-transition);
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.usegeo-shell {
  width: min(calc(100% - 32px), var(--usegeo-shell));
  margin: 0 auto;
}

.usegeo-shell--narrow {
  width: min(calc(100% - 32px), 840px);
}

.usegeo-site-header,
.usegeo-site-footer {
  padding: 20px 0;
}

.usegeo-site-main {
  min-height: calc(100vh - 180px);
  padding-bottom: 36px;
}

.usegeo-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.usegeo-site-logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.usegeo-site-logo .custom-logo {
  max-height: 48px;
  width: auto;
}

.usegeo-site-nav {
  margin-left: auto;
}

.usegeo-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.usegeo-menu a {
  color: var(--usegeo-color-muted);
  font-size: 14px;
  font-weight: 600;
}

.usegeo-menu a:hover {
  color: var(--usegeo-color-primary);
}

.usegeo-card {
  padding: 28px;
  margin: 18px 0;
  border: 1px solid var(--usegeo-color-border);
  border-radius: var(--usegeo-radius-lg);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--usegeo-shadow);
}

.usegeo-card:hover {
  box-shadow: 0 24px 44px rgba(15, 98, 254, 0.08);
}

.usegeo-section-heading h2,
.usegeo-card h1,
.usegeo-card h2 {
  margin: 0 0 10px;
  line-height: 1.2;
}

.usegeo-card h1 {
  letter-spacing: -0.03em;
}

.usegeo-section-heading p,
.usegeo-lead,
.usegeo-tool__status,
.usegeo-tool__result p {
  margin: 0;
  color: var(--usegeo-color-muted);
}

.usegeo-eyebrow {
  margin: 0 0 10px;
  color: var(--usegeo-color-primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.usegeo-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.usegeo-trust-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid rgba(15, 98, 254, 0.14);
  border-radius: var(--usegeo-radius-sm);
  background: rgba(15, 98, 254, 0.06);
  color: var(--usegeo-color-primary-ink);
  font-size: 13px;
  font-weight: 700;
}

.usegeo-hero__microcopy {
  display: grid;
  gap: 6px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--usegeo-color-border);
}

.usegeo-hero__microcopy strong {
  font-size: 15px;
}

.usegeo-hero__microcopy span {
  color: var(--usegeo-color-muted);
  font-size: 14px;
}

.usegeo-tool__row,
.usegeo-roi__grid {
  display: grid;
  gap: 12px;
}

.usegeo-tool__row {
  grid-template-columns: 1fr auto;
  margin-top: 18px;
}

.usegeo-tool input,
.usegeo-tool select,
.usegeo-roi input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--usegeo-color-border);
  border-radius: var(--usegeo-radius-md);
  background: #fff;
  transition: border-color var(--usegeo-transition), box-shadow var(--usegeo-transition);
}

.usegeo-tool input:focus,
.usegeo-tool select:focus,
.usegeo-roi input:focus {
  outline: 0;
  border-color: rgba(15, 98, 254, 0.55);
  box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.08);
}

.usegeo-tool button,
.usegeo-inline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border: 0;
  border-radius: var(--usegeo-radius-md);
  background: var(--usegeo-color-accent);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

.usegeo-tool button:hover,
.usegeo-inline-cta:hover {
  color: #fff;
  filter: brightness(0.95);
  transform: translateY(-1px);
}

.usegeo-inline-cta--ghost {
  border: 1px solid rgba(15, 98, 254, 0.18);
  background: rgba(15, 98, 254, 0.06);
  color: var(--usegeo-color-primary-ink);
}

.usegeo-inline-cta--ghost:hover {
  color: var(--usegeo-color-primary-ink);
  filter: none;
}

.usegeo-tool__status,
.usegeo-tool__result,
.usegeo-roi__results {
  margin-top: 18px;
}

.usegeo-metric {
  display: grid;
  gap: 6px;
}

.usegeo-metric__label {
  color: var(--usegeo-color-muted);
  font-size: 14px;
}

.usegeo-metric strong {
  font-size: 34px;
  line-height: 1;
}

.usegeo-article {
  font-size: 17px;
}

.usegeo-article__header {
  margin-bottom: 28px;
}

.usegeo-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.usegeo-article__meta span {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(15, 98, 254, 0.06);
  color: var(--usegeo-color-primary-ink);
  font-size: 12px;
  font-weight: 700;
}

.usegeo-article__excerpt {
  margin: 0;
  color: var(--usegeo-color-muted);
  font-size: 18px;
}

.usegeo-article__content {
  color: var(--usegeo-color-text);
}

.usegeo-article__content > *:first-child {
  margin-top: 0;
}

.usegeo-article__content p,
.usegeo-article__content li {
  color: var(--usegeo-color-text);
}

.usegeo-article__content h2,
.usegeo-article__content h3 {
  margin-top: 2em;
}

.usegeo-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
}

.usegeo-article-sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
}

.usegeo-sidebar-cta {
  display: grid;
  gap: 16px;
}

.usegeo-sidebar-cta__metric {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, #edf4ff 0%, #ffffff 100%);
  border: 1px solid rgba(15, 98, 254, 0.12);
}

.usegeo-sidebar-cta__metric span {
  color: var(--usegeo-color-muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.usegeo-sidebar-cta__metric strong {
  font-size: 22px;
  line-height: 1.2;
}

.usegeo-sidebar-cta__list {
  margin: 0;
  padding-left: 18px;
  color: var(--usegeo-color-muted);
}

.usegeo-site-footer__grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.usegeo-site-footer__brand p {
  margin: 8px 0 0;
  color: var(--usegeo-color-muted);
}

@media (max-width: 900px) {
  .usegeo-tool__row,
  .usegeo-article-layout,
  .usegeo-site-header__inner,
  .usegeo-site-footer__grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .usegeo-site-nav {
    margin-left: 0;
  }

  .usegeo-card {
    padding: 22px;
  }

  .usegeo-article-sidebar {
    position: static;
  }
}