/* LBank home SEO field manual — prefix r4e8n2oa | dark + gold magazine layout */

.page-viewport-fill + .r4e8n2oa__root.index-seo-section,
.auth-shell-viewport + .r4e8n2oa__root {
  flex: 0 0 auto;
  width: 100%;
  margin: 0;
  padding: 0;
}

.r4e8n2oa__root {
  --rx-bg0: #000000;
  --rx-bg1: #080808;
  --rx-bg2: #121212;
  --rx-panel: #161616;
  --rx-inp: #1f1f1f;
  --rx-accent: #ffcc00;
  --rx-accent-2: #ffd633;
  --rx-accent-on: #111111;
  --rx-accent-soft: rgba(255, 204, 0, 0.1);
  --rx-accent-glow: rgba(255, 204, 0, 0.18);
  --rx-link: #ffcc00;
  --rx-link-h: #ffe566;
  --rx-text: #ffffff;
  --rx-muted: #8b949e;
  --rx-border: #2b2f36;
  --rx-radius: 14px;
  --rx-media-w: min(100%, 500px);
  --rx-media-h: 500px;
  --rx-media-size: 500px;
  --rx-font: "Inter", "Segoe UI", system-ui, sans-serif;
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(ellipse 100% 60% at 50% -5%, rgba(255, 204, 0, 0.09), transparent 55%),
    linear-gradient(180deg, var(--rx-bg0) 0%, var(--rx-bg1) 50%, #000000 100%);
  color: var(--rx-text);
  font-family: var(--rx-font);
  font-size: 1rem;
  line-height: 1.72;
  text-align: start;
  border-top: 3px solid var(--rx-accent);
}

.r4e8n2oa__root::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(135deg, rgba(255, 204, 0, 0.04) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255, 204, 0, 0.04) 25%, transparent 25%);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 85%);
}

.r4e8n2oa__shell {
  position: relative;
  z-index: 1;
  max-width: 1140px;
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 3.25rem) clamp(1.15rem, 4vw, 2rem) clamp(2.5rem, 6vw, 4rem);
}

/* ——— Hero ——— */
.r4e8n2oa__hero {
  position: relative;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: calc(var(--rx-radius) + 6px);
  background: linear-gradient(145deg, rgba(22, 22, 22, 0.98) 0%, rgba(10, 10, 10, 0.96) 100%);
  border: 1px solid rgba(255, 204, 0, 0.22);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.r4e8n2oa__hero-glow {
  position: absolute;
  inset: -35% -15% auto auto;
  width: min(460px, 60vw);
  height: min(460px, 60vw);
  background: radial-gradient(circle, var(--rx-accent-glow) 0%, transparent 68%);
  pointer-events: none;
}

.r4e8n2oa__hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--rx-accent), var(--rx-accent-2), transparent);
  pointer-events: none;
}

.r4e8n2oa__hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: start;
}

@media (max-width: 720px) {
  .r4e8n2oa__hero-grid {
    grid-template-columns: 1fr;
  }
}

.r4e8n2oa__hero-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.r4e8n2oa__eyebrow {
  display: inline-flex;
  width: fit-content;
  padding: 0.32rem 0.75rem;
  border-radius: 999px;
  background: var(--rx-accent);
  color: var(--rx-accent-on);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.r4e8n2oa__meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.r4e8n2oa__meta-chip {
  padding: 0.22rem 0.55rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--rx-muted);
  background: var(--rx-inp);
  border: 1px solid var(--rx-border);
}

.r4e8n2oa__byline {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--rx-muted);
}

.r4e8n2oa__byline time {
  color: var(--rx-text);
}

.r4e8n2oa__title {
  margin: 0 0 0.9rem;
  font-size: clamp(1.7rem, 4vw, 2.45rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.18;
  color: var(--rx-text);
  text-wrap: balance;
}

.r4e8n2oa__lead {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.0625rem);
  color: var(--rx-muted);
  max-width: 62ch;
  line-height: 1.78;
}

/* Trust pulse strip */
.r4e8n2oa__trust-pulse {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.5rem;
  position: relative;
  z-index: 1;
}

@media (max-width: 640px) {
  .r4e8n2oa__trust-pulse {
    grid-template-columns: 1fr;
  }
}

.r4e8n2oa__pulse-card {
  padding: 0.9rem 1rem;
  border-radius: var(--rx-radius);
  background: var(--rx-inp);
  border: 1px solid var(--rx-border);
  transition: border-color 0.15s, transform 0.12s;
}

.r4e8n2oa__pulse-card:hover {
  border-color: rgba(255, 204, 0, 0.4);
  transform: translateY(-2px);
}

.r4e8n2oa__pulse-num {
  display: block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--rx-accent);
  margin-bottom: 0.35rem;
}

.r4e8n2oa__pulse-card strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--rx-text);
  margin-bottom: 0.25rem;
}

.r4e8n2oa__pulse-card p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--rx-muted);
}

.r4e8n2oa__hero-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
  position: relative;
  z-index: 1;
}

.r4e8n2oa__share,
.r4e8n2oa__social-official {
  padding: 0.85rem 1rem;
  border-radius: var(--rx-radius);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--rx-border);
}

.r4e8n2oa__share-title,
.r4e8n2oa__social-official-title {
  margin: 0 0 0.45rem;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--rx-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.r4e8n2oa__social-official-note {
  margin: 0 0 0.55rem;
  font-size: 0.8125rem;
  color: var(--rx-muted);
  line-height: 1.5;
}

.r4e8n2oa__share-list,
.r4e8n2oa__social-official-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.r4e8n2oa__share-link,
.r4e8n2oa__social-official-link {
  display: inline-flex;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  background: var(--rx-panel);
  border: 1px solid var(--rx-border);
  color: var(--rx-text);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.r4e8n2oa__share-link:hover,
.r4e8n2oa__social-official-link:hover {
  background: var(--rx-accent-soft);
  border-color: rgba(255, 204, 0, 0.4);
  color: var(--rx-accent);
}

/* ——— Body grid: sticky TOC + stream ——— */
.r4e8n2oa__body-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 960px) {
  .r4e8n2oa__body-grid {
    grid-template-columns: minmax(11.5rem, 13.5rem) minmax(0, 1fr);
    gap: 2rem 2.5rem;
  }
}

.r4e8n2oa__toc-rail {
  position: relative;
}

@media (min-width: 960px) {
  .r4e8n2oa__toc-rail {
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow: auto;
    padding: 1rem 0.85rem 1rem 0;
    border-inline-start: 2px solid rgba(255, 204, 0, 0.25);
  }
}

@media (max-width: 959px) {
  .r4e8n2oa__toc-rail {
    padding: 1rem;
    border-radius: var(--rx-radius);
    border: 1px solid var(--rx-border);
    background: var(--rx-panel);
  }
}

.r4e8n2oa__toc-label {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--rx-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.r4e8n2oa__toc-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: rx-toc;
}

@media (max-width: 959px) {
  .r4e8n2oa__toc-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
  }
}

.r4e8n2oa__toc-steps li {
  counter-increment: rx-toc;
}

@media (min-width: 960px) {
  .r4e8n2oa__toc-steps li:not(:last-child)::after {
    content: "";
    position: absolute;
    inset-inline-start: 0.95rem;
    top: 2.2rem;
    bottom: -0.1rem;
    width: 2px;
    background: linear-gradient(180deg, rgba(255, 204, 0, 0.35), transparent);
  }

  .r4e8n2oa__toc-steps li {
    position: relative;
  }
}

.r4e8n2oa__toc-steps a {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.45rem 0.35rem;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--rx-muted);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

@media (max-width: 959px) {
  .r4e8n2oa__toc-steps a {
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--rx-border);
    border-radius: 999px;
    background: var(--rx-inp);
    font-size: 0.78rem;
  }
}

.r4e8n2oa__toc-steps a::before {
  content: counter(rx-toc, decimal-leading-zero);
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--rx-accent);
  background: var(--rx-accent-soft);
  border: 1px solid rgba(255, 204, 0, 0.25);
}

@media (max-width: 959px) {
  .r4e8n2oa__toc-steps a::before {
    display: none;
  }
}

.r4e8n2oa__toc-steps a:hover {
  color: var(--rx-accent);
  background: var(--rx-accent-soft);
}

.r4e8n2oa__stream {
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.75rem);
  min-width: 0;
}

/* ——— Sections ——— */
.r4e8n2oa__section {
  position: relative;
  padding: clamp(1.35rem, 3vw, 1.9rem);
  border-radius: calc(var(--rx-radius) + 2px);
  background: var(--rx-panel);
  border: 1px solid var(--rx-border);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
  scroll-margin-top: 1rem;
  overflow: hidden;
}

.r4e8n2oa__section-watermark {
  position: absolute;
  inset: 0.5rem 0.75rem auto auto;
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 204, 0, 0.06);
  pointer-events: none;
  user-select: none;
}

.r4e8n2oa__h2 {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 0.95rem;
  padding-bottom: 0.7rem;
  font-size: clamp(1.22rem, 2.5vw, 1.48rem);
  font-weight: 800;
  color: var(--rx-text);
  letter-spacing: -0.025em;
  border-bottom: 1px solid var(--rx-border);
}

.r4e8n2oa__h2::before {
  content: "";
  flex-shrink: 0;
  width: 4px;
  height: 1.1em;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--rx-accent), var(--rx-accent-2));
}

.r4e8n2oa__h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--rx-text);
}

.r4e8n2oa__section p {
  margin: 0 0 0.85rem;
  color: var(--rx-muted);
}

.r4e8n2oa__section a {
  color: var(--rx-link);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(255, 204, 0, 0.35);
}

.r4e8n2oa__section a:hover {
  color: var(--rx-link-h);
}

/* Callouts */
.r4e8n2oa__callout {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  border-radius: var(--rx-radius);
  background: var(--rx-accent-soft);
  border: 1px solid rgba(255, 204, 0, 0.3);
}

.r4e8n2oa__callout strong {
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--rx-accent);
  margin-bottom: 0.35rem;
}

.r4e8n2oa__callout p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--rx-text);
}

.r4e8n2oa__callout--warn {
  background: rgba(255, 100, 50, 0.08);
  border-color: rgba(255, 140, 80, 0.35);
}

.r4e8n2oa__callout--warn strong {
  color: #ffb380;
}

/* Timeline */
.r4e8n2oa__timeline {
  margin: 1rem 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.r4e8n2oa__timeline-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--rx-border);
  position: relative;
}

.r4e8n2oa__timeline-step:last-child {
  border-bottom: none;
}

.r4e8n2oa__timeline-badge {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--rx-accent-on);
  background: var(--rx-accent);
  flex-shrink: 0;
}

.r4e8n2oa__timeline-step p {
  margin: 0;
  font-size: 0.875rem;
}

/* Bento grid */
.r4e8n2oa__bento {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.r4e8n2oa__bento-cell {
  padding: 0.8rem 0.85rem 0.8rem 2.5rem;
  border-radius: var(--rx-radius);
  background: var(--rx-inp);
  border: 1px solid var(--rx-border);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--rx-text);
  position: relative;
  transition: border-color 0.15s, transform 0.12s;
}

.r4e8n2oa__bento-cell::before {
  content: "◆";
  position: absolute;
  inset-inline-start: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.55rem;
  color: var(--rx-accent);
}

.r4e8n2oa__bento-cell:hover {
  border-color: rgba(255, 204, 0, 0.35);
  transform: translateY(-1px);
}

/* Media */
.r4e8n2oa__media {
  width: var(--rx-media-w);
  max-width: 100%;
  margin: 1.35rem auto;
  border-radius: calc(var(--rx-radius) + 2px);
  overflow: hidden;
  border: 1px solid rgba(255, 204, 0, 0.15);
  background: var(--rx-bg2);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
}

.r4e8n2oa__media-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: var(--rx-media-h);
  max-height: var(--rx-media-size);
  padding: 0.5rem;
  background: linear-gradient(145deg, #1a1a1a, #252525);
  box-sizing: border-box;
}

.r4e8n2oa__media-frame img {
  max-width: calc(var(--rx-media-size) - 1rem);
  max-height: calc(var(--rx-media-size) - 1rem);
  object-fit: contain;
}

.r4e8n2oa__media-cap {
  padding: 0.75rem 1rem;
  font-size: 0.8125rem;
  color: var(--rx-muted);
  text-align: center;
  border-top: 1px solid var(--rx-border);
  background: var(--rx-inp);
}

@media (max-width: 540px) {
  .r4e8n2oa__root {
    --rx-media-size: min(calc(100vw - 2.5rem), 500px);
    --rx-media-h: var(--rx-media-size);
    --rx-media-w: var(--rx-media-size);
  }
}

/* Symptom matrix */
.r4e8n2oa__symptom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.r4e8n2oa__symptom-card {
  padding: 1rem;
  border-radius: var(--rx-radius);
  background: var(--rx-inp);
  border: 1px solid var(--rx-border);
  border-top: 3px solid var(--rx-accent);
  transition: transform 0.12s, border-color 0.15s;
}

.r4e8n2oa__symptom-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 204, 0, 0.35);
}

.r4e8n2oa__symptom-title {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
}

.r4e8n2oa__symptom-card p {
  margin: 0;
  font-size: 0.84rem;
}

/* Quotes */
.r4e8n2oa__quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.r4e8n2oa__quote-card {
  margin: 0;
  padding: 1rem 1rem 1.05rem 3.25rem;
  border-radius: var(--rx-radius);
  background: var(--rx-inp);
  border: 1px solid var(--rx-border);
  position: relative;
}

.r4e8n2oa__quote-card--wide {
  grid-column: span 2;
}

@media (max-width: 640px) {
  .r4e8n2oa__quote-card--wide {
    grid-column: span 1;
  }
}

.r4e8n2oa__quote-avatar {
  position: absolute;
  inset-inline-start: 0.85rem;
  top: 0.85rem;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--rx-accent-on);
  background: var(--rx-accent);
}

.r4e8n2oa__quote-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--rx-muted);
  line-height: 1.65;
}

.r4e8n2oa__quote-card cite {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 700;
  color: var(--rx-accent);
}

/* FAQ */
.r4e8n2oa__faq-board {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.85rem;
}

@media (min-width: 768px) {
  .r4e8n2oa__faq-board {
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
  }
}

.r4e8n2oa__faq-item {
  border-radius: var(--rx-radius);
  border: 1px solid var(--rx-border);
  background: var(--rx-inp);
  overflow: hidden;
}

.r4e8n2oa__faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 0.85rem 1rem;
}

.r4e8n2oa__faq-item summary::-webkit-details-marker {
  display: none;
}

.r4e8n2oa__faq-q {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--rx-text);
}

.r4e8n2oa__faq-item[open] {
  border-color: rgba(255, 204, 0, 0.4);
  background: linear-gradient(180deg, var(--rx-inp) 0%, rgba(255, 204, 0, 0.05) 100%);
}

.r4e8n2oa__faq-item p {
  margin: 0;
  padding: 0 1rem 0.85rem;
  font-size: 0.875rem;
  color: var(--rx-muted);
}

.r4e8n2oa__outbound {
  margin: 0.65rem 0 0;
  padding-inline-start: 1.15rem;
  color: var(--rx-muted);
}

/* Footer */
.r4e8n2oa__footer {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding: 1.35rem 1.15rem;
  border-radius: calc(var(--rx-radius) + 2px);
  background: var(--rx-panel);
  border: 1px solid var(--rx-border);
}

.r4e8n2oa__root .r4e8n2oa__nap {
  margin-bottom: 1rem;
  padding: 1rem;
  border-radius: var(--rx-radius);
  background: var(--rx-inp);
  border: 1px dashed rgba(255, 204, 0, 0.25);
  font-size: 0.875rem;
  color: var(--rx-muted);
}

.r4e8n2oa__root .r4e8n2oa__nap a {
  color: var(--rx-link);
}

.r4e8n2oa__support-hint,
.r4e8n2oa__copy {
  margin: 0.65rem 0 0;
  font-size: 0.8125rem;
  color: var(--rx-muted);
}

.r4e8n2oa__support-hint a {
  color: var(--rx-link);
}