:root {
  --ink: #111827;
  --muted: #5b6472;
  --line: #d7dde6;
  --paper: #f7f9fc;
  --white: #ffffff;
  --green: #1ca86e;
  --green-dark: #0f6b4a;
  --red: #d34a4a;
  --gold: #c29231;
  --navy: #172033;
  --shadow: 0 20px 60px rgba(20, 32, 54, 0.14);
  --article-sticky-top: 84px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

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

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 30;
  padding: 10px 16px;
  color: var(--white);
  background: var(--green-dark);
  border-radius: 8px;
  font-weight: 750;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

:where(a, button, summary):focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 2px;
}

body.nav-open {
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 28px;
  padding: 16px clamp(18px, 5vw, 72px);
  background: rgba(247, 249, 252, 0.92);
  border-bottom: 1px solid rgba(215, 221, 230, 0.75);
  backdrop-filter: blur(18px);
}

.brand,
.main-nav,
.hero-actions,
.hero-stats,
.trust-band {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-logo {
  flex-shrink: 0;
  width: auto;
  height: 36px;
  object-fit: contain;
}

.main-nav {
  justify-content: center;
  gap: clamp(18px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
}

.main-nav a:hover {
  color: var(--green-dark);
}

.header-cta,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 750;
}

.header-cta,
.primary-button {
  color: var(--white);
  background: var(--green-dark);
  border: 1px solid var(--green-dark);
}

.secondary-button {
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  gap: clamp(32px, 6vw, 86px);
  min-height: calc(100vh - 74px);
  padding: clamp(48px, 8vw, 100px) clamp(18px, 5vw, 72px) 42px;
  overflow: hidden;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.96) 0%, rgba(242, 246, 250, 0.9) 42%, rgba(232, 238, 246, 0.88) 100%),
    radial-gradient(circle at 84% 22%, rgba(28, 168, 110, 0.18), transparent 32%);
}

.hero-copy {
  align-self: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(54px, 9vw, 118px);
  line-height: 0.92;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(32px, 4.8vw, 58px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.hero-lede,
.section-heading p,
.faq p,
.steps p,
.feature-grid p,
.site-footer p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-lede {
  max-width: 670px;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0;
}

.hero-stats {
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.hero-stats div {
  width: 132px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero-stats dt {
  font-size: 26px;
  font-weight: 850;
}

.hero-stats dd {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.hero-image {
  align-self: center;
  min-width: 0;
  margin: 0;
}

.hero-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1024 / 598;
  object-fit: cover;
  background: #dfe6ee;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-image figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.trust-band {
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px clamp(18px, 5vw, 72px);
  background: var(--white);
  border-block: 1px solid var(--line);
}

.trust-band span {
  padding: 9px 14px;
  color: var(--navy);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 700;
}

.trust-band a {
  padding: 9px 14px;
  color: var(--white);
  background: var(--green-dark);
  border: 1px solid var(--green-dark);
  border-radius: 8px;
  font-weight: 800;
}

.section,
.markets {
  padding: clamp(66px, 9vw, 110px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-heading-aside {
  max-width: 640px;
  margin: -6px 0 0;
  font-size: 15px;
  line-height: 1.62;
  color: var(--muted);
}

.section-heading-aside a {
  color: var(--green-dark);
  font-weight: 750;
}

.section-heading-aside a:hover {
  text-decoration: underline;
}

.feature-grid,
.platform-grid,
.automation-grid,
.info-grid {
  display: grid;
  gap: 18px;
}

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

.platform-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.feature-grid article,
.platform-grid article,
.automation-grid article,
.info-grid article,
.steps li,
.faq details,
.risk-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-grid article,
.platform-grid article,
.automation-grid article,
.info-grid article {
  padding: 24px;
}

.feature-grid article {
  min-height: 250px;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  color: var(--green-dark);
  background: #e6f6ef;
  border-radius: 8px;
  font-weight: 850;
}

.platform-section {
  background: var(--white);
}

.hedging-section,
.depth-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  background: var(--white);
}

.depth-section {
  grid-template-columns: minmax(420px, 1.18fr) minmax(0, 0.82fr);
  background: #eef4f8;
}

.hedging-copy p,
.depth-copy p {
  color: var(--muted);
  line-height: 1.75;
}

.hedging-copy ul,
.depth-copy ul {
  display: grid;
  gap: 12px;
  padding-left: 20px;
  margin: 22px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.feature-image {
  min-width: 0;
  margin: 0;
}

.feature-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 760 / 494;
  object-fit: cover;
  object-position: center top;
  background: #eef4f8;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-image figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.platform-grid article {
  display: grid;
  align-content: start;
  min-height: 300px;
  background: var(--paper);
}

.platform-grid span {
  display: inline-flex;
  width: max-content;
  margin-bottom: 18px;
  padding: 7px 10px;
  color: var(--green-dark);
  background: #e6f6ef;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
}

.platform-grid a {
  align-self: end;
  margin-top: 20px;
  color: var(--green-dark);
  font-weight: 850;
}

.content-split {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: start;
}

.content-split > div:first-child {
  position: sticky;
  top: 100px;
}

.automation-section {
  background: #eef4f8;
}

.automation-grid article {
  min-height: 190px;
}

.markets {
  color: var(--white);
  background: var(--navy);
}

.markets .eyebrow,
.markets .section-heading p {
  color: #88e2ba;
}

.market-table {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.market-table > div,
.comparison-table > div {
  display: grid;
}

.market-table > div {
  grid-template-columns: 0.75fr 1.25fr 1.4fr;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.market-table > div:last-child,
.comparison-table > div:last-child {
  border-bottom: 0;
}

.market-table span {
  padding: 18px;
  color: #dce3ee;
}

.market-table [role="columnheader"] {
  color: var(--white);
  font-weight: 850;
  background: rgba(255, 255, 255, 0.08);
}

.comparison-section {
  background: var(--white);
}

.comparison-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.comparison-table > div {
  grid-template-columns: 0.72fr 1.35fr 1.35fr;
  border-bottom: 1px solid var(--line);
}

.comparison-table span {
  padding: 18px;
  color: var(--muted);
}

.comparison-table [role="columnheader"] {
  color: var(--ink);
  font-weight: 850;
  background: #eef4f8;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.steps li {
  padding: 24px;
}

.steps span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  color: var(--white);
  background: var(--green-dark);
  border-radius: 50%;
  font-weight: 850;
}

.download-hub {
  padding: clamp(48px, 6vw, 72px) clamp(18px, 5vw, 72px);
  color: var(--ink);
  background: var(--white);
  border-block: 1px solid var(--line);
}

.download-hub__head {
  margin-bottom: 20px;
}

.download-hub__head h2 {
  margin-bottom: 6px;
  font-size: clamp(26px, 4vw, 38px);
}

.download-hub .eyebrow {
  margin-bottom: 6px;
  color: var(--green-dark);
}

.download-hub__lede {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.download-hub__lede a {
  margin-left: 6px;
  color: var(--green-dark);
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.download-panels {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(14px, 2.5vw, 20px);
}

.dl-panel {
  display: flex;
  flex-direction: column;
  width: 100%;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(20, 32, 54, 0.06);
}

.dl-panel--desktop {
  max-width: min(960px, 100%);
}

.dl-panel--mobile {
  max-width: min(640px, 84%);
}

.dl-panel--web {
  max-width: min(420px, 68%);
}

.dl-panel--mobile .dl-panel__foot,
.dl-panel--web .dl-panel__foot {
  text-align: center;
}

.dl-panel__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  height: clamp(108px, 14vw, 140px);
  margin: 0;
  padding: 10px 12px 6px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}

.dl-panel__visual img {
  display: block;
  width: auto;
  max-width: 100%;
  height: 100%;
  object-fit: contain;
}

.dl-panel__foot {
  padding: 12px 14px 14px;
}

.dl-panel__foot h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 850;
}

.dl-panel__btns {
  display: grid;
  gap: 10px;
}

.dl-panel--desktop .dl-panel__btns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.dl-panel--mobile .dl-panel__btns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dl-panel--web .dl-panel__btns {
  grid-template-columns: minmax(0, 1fr);
  max-width: 320px;
  margin-inline: auto;
}

.dl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  color: var(--white);
  font-size: 15px;
  font-weight: 850;
  text-align: center;
  transition: filter 140ms ease, transform 140ms ease;
}

.dl-btn:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.dl-btn--windows {
  background: #0078d4;
}

.dl-btn--macos {
  background: #1d1d1f;
}

.dl-btn--linux {
  color: #1d1d1f;
  background: #f0c14b;
}

.dl-btn--ios {
  background: #007aff;
}

.dl-btn--android {
  color: #0f3d24;
  background: #3ddc84;
}

.dl-btn--web {
  background: var(--green-dark);
}

.download-hub__note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

@media (max-width: 720px) {
  .dl-panel--desktop,
  .dl-panel--mobile,
  .dl-panel--web {
    max-width: 100%;
  }

  .dl-panel--desktop .dl-panel__btns {
    grid-template-columns: 1fr;
  }

  .dl-panel--mobile .dl-panel__btns {
    grid-template-columns: 1fr;
  }

  .dl-panel--web .dl-panel__btns {
    max-width: none;
  }
}

.risk-section {
  padding-top: 0;
}

.risk-panel {
  padding: clamp(24px, 4vw, 42px);
}

.risk-panel h2 {
  max-width: 820px;
}

.risk-panel ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 26px;
  padding-left: 20px;
  margin: 24px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
}

.faq details {
  padding: 18px 20px;
}

.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 850;
}

.faq p {
  margin: 14px 0 0;
}

.site-footer {
  padding: clamp(40px, 6vw, 70px) clamp(18px, 5vw, 72px) 28px;
  color: #dce3ee;
  background: #0c1220;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.35fr) repeat(auto-fit, minmax(148px, 1fr));
  gap: clamp(24px, 4vw, 54px);
  align-items: start;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 850;
}

.footer-logo img {
  width: 34px;
  height: auto;
}

.site-footer h2 {
  margin: 0 0 14px;
  color: var(--white);
  font-size: 15px;
}

.site-footer p {
  max-width: 540px;
  margin: 12px 0 0;
  color: #93a2b8;
  line-height: 1.75;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.site-footer a {
  color: #88e2ba;
  font-weight: 800;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 20px;
  margin-top: 38px;
  padding-top: 22px;
  color: #93a2b8;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 14px;
}

.footer-bottom__legal {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.footer-bottom__legal a {
  color: #88e2ba;
  font-weight: 700;
}

@media (max-width: 1080px) {
  .hero,
  .content-split,
  .hedging-section,
  .depth-section {
    grid-template-columns: 1fr;
  }

  .hero-image {
    width: 100%;
  }

  .content-split > div:first-child {
    position: static;
  }

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

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: auto auto;
  }

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

  .menu-button {
    display: block;
    justify-self: end;
  }

  .site-header.nav-open {
    grid-template-columns: 1fr auto;
  }

  .site-header.nav-open .main-nav {
    grid-column: 1 / -1;
    display: grid;
    justify-content: stretch;
    gap: 0;
  }

  .site-header.nav-open .main-nav a {
    padding: 14px 0;
    border-top: 1px solid var(--line);
  }

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(48px, 16vw, 76px);
  }

  .hero-image img {
    aspect-ratio: 16 / 10;
  }

  .feature-image img {
    aspect-ratio: 16 / 10;
  }

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

  .market-table,
  .comparison-table {
    border: 0;
  }

  .market-table > div,
  .comparison-table > div {
    grid-template-columns: 1fr;
    margin-bottom: 12px;
    border-radius: 8px;
    overflow: hidden;
  }

  .market-table > div {
    border: 1px solid rgba(255, 255, 255, 0.14);
  }

  .comparison-table > div {
    border: 1px solid var(--line);
  }

  .market-table > div:first-child,
  .comparison-table > div:first-child {
    display: none;
  }

  .market-table span,
  .comparison-table span {
    padding: 13px 16px;
  }

  .site-footer {
    padding-bottom: 24px;
  }

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

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .info-grid,
  .automation-grid,
  .risk-panel ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 440px) {
  .hero-actions a,
  .hero-stats div {
    width: 100%;
  }

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

.article-shell {
  padding: clamp(28px, 5vw, 56px) clamp(18px, 5vw, 72px) clamp(64px, 10vw, 96px);
  background: var(--paper);
}

.article-shell--sidebar {
  scroll-margin-top: var(--article-sticky-top);
  position: relative;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 248px) minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
  width: 100%;
  max-width: 1224px;
  margin-inline: auto;
}

.article-shell--sidebar .article-main {
  min-width: 0;
}

.article-sidebar {
  position: sticky;
  top: var(--article-sticky-top);
  align-self: start;
  max-height: calc(100vh - var(--article-sticky-top) - 24px);
  overflow-y: auto;
  scrollbar-gutter: stable;
  z-index: 1;
}

.article-shell--sidebar .article-page .article-section[id],
.article-shell--sidebar .article-page .article-faq[id] {
  scroll-margin-top: calc(var(--article-sticky-top) + 14px);
}

.article-scroll-top {
  position: fixed;
  right: max(14px, env(safe-area-inset-right, 0px));
  bottom: max(18px, env(safe-area-inset-bottom, 0px));
  z-index: 45;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  color: var(--green-dark);
  box-shadow: 0 10px 32px rgba(20, 32, 54, 0.12);
  cursor: pointer;
  font: inherit;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition:
    opacity 0.22s ease,
    visibility 0.22s ease,
    transform 0.22s ease;
}

.article-scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.article-scroll-top:hover {
  border-color: var(--green);
  background: rgba(28, 168, 110, 0.08);
  color: var(--navy);
}

.article-scroll-top:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

.article-page {
  max-width: 760px;
  margin: 0 auto;
}

/* 正文区 h1：避免继承首页 hero 的超大字号 */
.article-page h1 {
  margin-bottom: clamp(12px, 2.6vw, 20px);
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.22;
  font-weight: 850;
  color: var(--navy);
  letter-spacing: -0.02em;
}

.article-header {
  margin-bottom: clamp(28px, 4vw, 40px);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 0;
  margin: 0 0 16px;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line);
  font-weight: 600;
}

.breadcrumb a {
  color: var(--green-dark);
  font-weight: 650;
}

.breadcrumb li[aria-current="page"] {
  color: var(--ink);
  font-weight: 750;
}

.article-eyebrow {
  margin-bottom: 10px !important;
}

.article-title-en {
  color: var(--muted);
  font-weight: 700;
}

.article-byline {
  margin: -4px 0 18px;
  font-size: 14px;
  color: var(--muted);
}

.article-byline-label {
  margin-right: 4px;
  font-weight: 750;
}

.article-byline-note {
  color: var(--muted);
  font-weight: 600;
}

.article-dateline {
  margin: -6px 0 18px;
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}

.article-dateline time {
  font-weight: 750;
  color: var(--ink);
}

.article-dateline-rev,
.article-dateline-rev time {
  font-weight: 600;
  color: var(--muted);
}

.article-lead,
.article-intro-note,
.article-section p,
.article-section li {
  line-height: 1.82;
}

.article-lead {
  margin-bottom: 20px;
  font-size: clamp(17px, 2vw, 19px);
  color: var(--ink);
}

.article-intro-note {
  margin-top: 0;
  color: var(--muted);
}

.article-page h2 {
  margin: 0 0 14px;
  font-size: clamp(18px, 2.65vw, 24px);
  line-height: 1.38;
}

.article-section {
  padding: clamp(22px, 3vw, 34px) 0;
  border-top: 1px solid rgba(215, 221, 230, 0.9);
}

.article-section:first-of-type {
  border-top: none;
  padding-top: 8px;
}

.article-section--highlight {
  background: linear-gradient(135deg, rgba(28, 168, 110, 0.08), rgba(247, 249, 252, 0.95));
  border: 1px solid rgba(28, 168, 110, 0.2);
  border-radius: 10px;
  padding: clamp(20px, 3vw, 28px);
  margin: 8px 0 24px;
}

.article-h3 {
  margin: 22px 0 10px;
  font-size: 17px;
  font-weight: 850;
  color: var(--navy);
}

.article-callout {
  padding: 16px 18px;
  margin: 16px 0;
  border-radius: 8px;
  background: rgba(28, 168, 110, 0.08);
  border: 1px solid rgba(28, 168, 110, 0.22);
  color: var(--ink);
}

.article-callout p:last-child {
  margin-bottom: 0;
}

.article-callout--key {
  background: rgba(23, 32, 51, 0.04);
  border-color: var(--line);
}

.article-callout--warn {
  background: rgba(211, 74, 74, 0.06);
  border-color: rgba(211, 74, 74, 0.25);
}

.article-mnemonic {
  margin: 12px 0 0;
  padding-left: 20px;
}

.article-disclaimer {
  margin: 22px 0 0;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.62;
  color: var(--muted);
  border: 1px dashed rgba(91, 100, 114, 0.45);
  background: rgba(255, 255, 255, 0.6);
}

.article-toc {
  padding: 20px 22px;
  margin-bottom: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(20, 32, 54, 0.05);
}

.article-toc__title {
  margin: 0 0 14px !important;
  font-size: 15px !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-dark);
}

.article-toc ol {
  margin: 0;
  padding-left: 20px;
  color: var(--ink);
}

.article-toc li {
  margin: 8px 0;
  line-height: 1.5;
}

.article-toc a {
  color: var(--green-dark);
  font-weight: 700;
}

.article-toc.article-toc--rail {
  margin-bottom: 0;
  padding: 16px 18px;
}

.article-toc--rail .article-toc__title {
  margin-bottom: 10px !important;
}

.article-toc--rail li {
  margin: 6px 0;
}

.article-toc.article-toc--rail a {
  font-size: 13px;
  font-weight: 650;
}

.article-comparison {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

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

.article-comparison__card {
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
}

.article-comparison__tag {
  margin: 0 0 8px !important;
  font-size: 14px !important;
  font-weight: 850 !important;
}

.article-comparison__tag--order {
  color: #0078d4;
}

.article-comparison__tag--deal {
  color: #b45309;
}

.article-comparison__tag--position {
  color: var(--green-dark);
}

.article-comparison__card p {
  margin: 0 !important;
  font-size: 14px !important;
  color: var(--muted) !important;
  line-height: 1.55 !important;
}

.article-list {
  padding-left: 20px;
  margin: 12px 0;
  color: var(--muted);
}

.article-list--dense {
  color: var(--ink);
}

.article-list--check li {
  margin: 10px 0;
}

.article-example-box {
  padding: 14px 16px;
  margin: 14px 0;
  background: rgba(247, 249, 252, 0.95);
  border-left: 4px solid var(--gold);
  border-radius: 0 8px 8px 0;
}

.article-example-box p {
  margin: 0;
}

.article-quote {
  margin: 20px 0;
  padding: 16px 18px;
  border-left: 4px solid var(--green-dark);
  background: rgba(28, 168, 110, 0.06);
  border-radius: 0 10px 10px 0;
}

.article-quote p {
  margin: 0 0 10px !important;
  font-weight: 650 !important;
  color: var(--ink) !important;
}

.article-quote-source {
  margin-bottom: 0 !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: var(--muted) !important;
}

.article-two-col {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 16px 0;
}

.article-card {
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
}

.article-card h3 {
  margin: 0 0 8px !important;
  font-size: 17px !important;
}

.article-card p {
  margin: 0 !important;
  color: var(--muted);
}

.article-dl-grid {
  margin: 16px 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.article-dl-grid > div {
  padding: 14px 16px;
  margin: 0;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--white);
}

.article-dl-grid dt {
  margin: 0 0 6px;
  font-weight: 850;
  color: var(--navy);
}

.article-dl-grid dd {
  margin: 0;
  padding: 0;
  color: var(--muted);
  line-height: 1.62;
}

.article-tip {
  margin-top: 12px !important;
  font-weight: 750;
  color: var(--green-dark);
}

.article-myths {
  padding-left: 20px;
  margin: 12px 0;
  color: var(--muted);
}

.article-myths li {
  margin: 10px 0;
}

.article-checklist-ol {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--ink);
  line-height: 1.75;
}

.article-checklist-ol li {
  margin: 8px 0;
}

.article-tagline {
  margin-bottom: 0 !important;
  font-size: clamp(17px, 2.2vw, 20px) !important;
  font-weight: 850 !important;
  color: var(--green-dark) !important;
}

.article-figure {
  margin: clamp(20px, 3vw, 28px) 0;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
  overflow: hidden;
  box-shadow: 0 6px 22px rgba(20, 32, 54, 0.07);
}

.article-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.article-figure figcaption {
  padding: 12px 16px 14px;
  font-size: 14px;
  line-height: 1.52;
  color: var(--muted);
  border-top: 1px solid rgba(215, 221, 230, 0.9);
  background: rgba(247, 249, 252, 0.88);
}

.article-figure--tall img {
  max-height: min(820px, 78vh);
  width: auto;
  max-width: 100%;
  margin-inline: auto;
  object-fit: contain;
}

.section.section--article-faq {
  max-width: 760px;
  margin-inline: auto;
  padding: clamp(32px, 5vw, 56px) 0 clamp(48px, 6vw, 72px);
}

.article-back-wrap {
  margin-top: clamp(28px, 4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.article-share {
  margin-top: clamp(36px, 5vw, 52px);
  padding: clamp(18px, 3vw, 24px) clamp(18px, 3vw, 22px);
  border-radius: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(28, 168, 110, 0.06), rgba(255, 255, 255, 0.97));
  box-shadow: 0 6px 20px rgba(20, 32, 54, 0.05);
}

.section.section--article-faq + .article-share {
  margin-top: clamp(20px, 3vw, 32px);
}

.article-share__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 850;
  color: var(--navy);
}

.article-share__lead {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.article-share__row {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 10px;
}

.article-share__url {
  flex: 1 1 220px;
  margin: 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.55;
  word-break: break-all;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.article-share__copy {
  flex: 0 0 auto;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid var(--green-dark);
  background: var(--green-dark);
  color: #f4fffa;
  font: inherit;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  transition:
    background 0.16s ease,
    border-color 0.16s ease,
    transform 0.12s ease;
}

.article-share__copy:hover {
  background: var(--green);
  border-color: var(--green);
}

.article-share__copy:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

.article-share__copy.is-done {
  background: var(--navy);
  border-color: var(--navy);
}

.article-share__feedback {
  min-height: 1.35em;
  margin: 12px 0 0;
  font-size: 14px;
  font-weight: 650;
  color: var(--green-dark);
}

.tutorial-hub__list li {
  margin: 18px 0;
}

.tutorial-hub__list > li > a {
  font-weight: 750;
  color: var(--green-dark);
}

.tutorial-hub__summary {
  margin: 10px 0 0;
  max-width: 52ch;
}

.tutorial-hub-search {
  margin: 0 0 14px;
}

.tutorial-hub-search__label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 750;
  color: var(--navy);
}

.tutorial-hub-search__input {
  width: 100%;
  max-width: 440px;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(20, 32, 54, 0.05);
}

.tutorial-hub-search__input:hover {
  border-color: rgba(28, 168, 110, 0.45);
}

.tutorial-hub-search__input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(28, 168, 110, 0.2);
}

.tutorial-hub-search__status {
  min-height: 1.35em;
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--muted);
}

.tutorial-hub__item[hidden] {
  display: none !important;
}

.article-back-link {
  margin-top: 0;
}

.article-page .secondary-button {
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  display: inline-flex;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 8px;
  font-weight: 750;
}

.article-page .secondary-button:hover {
  border-color: var(--green);
  background: rgba(28, 168, 110, 0.06);
}

@media (max-width: 992px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: clamp(14px, 3vw, 22px);
  }

  .article-sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    z-index: auto;
  }

  .article-toc.article-toc--rail {
    margin-bottom: 4px;
  }
}

@media (max-width: 760px) {
  .article-comparison {
    grid-template-columns: 1fr;
  }

  .article-comparison--duo {
    grid-template-columns: 1fr;
  }

  .article-two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 440px) {
  .article-toc ol {
    padding-left: 16px;
  }
}

/* Legal pages: white background, black body text */
body.legal-page {
  color: #000000;
  background: #ffffff;
}

body.legal-page .legal-main {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 48px) clamp(18px, 5vw, 32px) clamp(48px, 8vw, 72px);
  scroll-margin-top: var(--article-sticky-top);
}

body.legal-page .legal-document {
  color: #000000;
  background: #ffffff;
}

body.legal-page .legal-document__header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid #cccccc;
}

body.legal-page .legal-document h1 {
  margin: 16px 0 8px;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  color: #000000;
  line-height: 1.25;
}

body.legal-page .legal-document h2 {
  margin: 28px 0 12px;
  font-size: 20px;
  font-weight: 800;
  color: #000000;
}

body.legal-page .legal-document h3 {
  margin: 20px 0 10px;
  font-size: 17px;
  font-weight: 750;
  color: #000000;
}

body.legal-page .legal-document__meta {
  margin: 0;
  font-size: 14px;
  color: #333333;
}

body.legal-page .legal-document__body p,
body.legal-page .legal-document__body li {
  font-size: 15px;
  line-height: 1.75;
  color: #000000;
}

body.legal-page .legal-document__body ul {
  margin: 12px 0;
  padding-left: 22px;
}

body.legal-page .legal-document__body li {
  margin: 8px 0;
}

body.legal-page .legal-document__body a {
  color: #000000;
  text-decoration: underline;
  text-underline-offset: 2px;
}

body.legal-page .legal-document__body a:hover {
  color: #333333;
}

body.legal-page .legal-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: #333333;
}

body.legal-page .legal-breadcrumb li:not(:last-child)::after {
  content: "›";
  margin-left: 8px;
  color: #666666;
}

body.legal-page .legal-breadcrumb a {
  color: #000000;
  text-decoration: underline;
}

body.legal-page .legal-contact {
  margin: 16px 0 0;
  padding: 16px 18px;
  font-style: normal;
  line-height: 1.75;
  color: #000000;
  background: #f5f5f5;
  border: 1px solid #dddddd;
  border-radius: 6px;
}

body.legal-page .legal-contact a {
  color: #000000;
}

body.legal-page .legal-document__related {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid #dddddd;
  font-size: 14px;
  color: #333333;
}

body.legal-page .legal-document__back {
  margin: 32px 0 0;
}

body.legal-page .secondary-button {
  color: #000000;
  border-color: #000000;
  background: #ffffff;
}

body.legal-page .secondary-button:hover {
  color: #ffffff;
  background: #000000;
}