/* ==========================================================================
   69云 (69yun.homes) - 样式表
   设计规范：Layer 1.5 — Fintech Ledger Conversion UI (金融级台账转化界面)
   CSS 命名风格：BEM 规范
   ========================================================================== */

:root {
  --bg-page: #F5F7F8;
  --bg-surface: #FFFFFF;
  --bg-subtle: #EBF0F2;
  --text-main: #172B3A;
  --text-secondary: #4E6372;
  --text-muted: #637887;
  --border-line: #DFE5E9;
  --accent-primary: #256D5B;
  --accent-hover: #1B5244;
  --accent-tint: #DCEFE7;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --max-width: 1160px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-main);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  font-variant-numeric: tabular-nums;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-page);
  color: var(--text-main);
}

main {
  flex: 1 0 auto;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 3px solid var(--accent-primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 1000;
  padding: 10px 16px;
  background-color: var(--text-main);
  color: var(--bg-surface);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

.layout-shell {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* ==========================================================================
   Header & Navigation (BEM: .site-header)
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(245, 247, 248, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  font-size: 0.875rem;
  font-weight: 700;
}

.site-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 14px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
}

.site-header__nav {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
  padding: 12px 16px 20px;
}

.site-header__nav--open {
  display: block;
}

.site-header__menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-header__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.site-header__link:hover,
.site-header__link--active {
  color: var(--accent-primary);
  background-color: var(--accent-tint);
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 18px;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9375rem;
  margin-top: 8px;
}

.site-header__cta:hover {
  background-color: var(--accent-hover);
  color: var(--bg-surface);
}

/* ==========================================================================
   Buttons (BEM: .action-btn)
   ========================================================================== */

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.action-btn--primary {
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  border-color: var(--accent-primary);
}

.action-btn--primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg-surface);
}

.action-btn--secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-line);
}

.action-btn--secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--accent-tint);
}

.action-btn--block {
  width: 100%;
}

/* ==========================================================================
   Hero & Fintech Ledger Dashboard Preview (BEM: .hero-panel)
   ========================================================================== */

.hero-panel {
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-surface);
}

.hero-panel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.hero-panel__serial {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background-color: var(--accent-tint);
  color: var(--accent-primary);
  border: 1px solid var(--border-line);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.hero-panel__title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  line-height: 1.22;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-panel__subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 600px;
}

.hero-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-panel__facts {
  border-top: 1px solid var(--border-line);
  padding-top: 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.hero-panel__facts-label {
  font-weight: 700;
  color: var(--text-main);
  display: block;
  margin-bottom: 8px;
}

.hero-panel__client-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-panel__client-tag {
  padding: 4px 10px;
  background-color: var(--bg-page);
  border: 1px solid var(--border-line);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* Ledger Dashboard Component */
.hero-panel__diagram {
  background-color: var(--bg-page);
  border: 1px solid var(--border-line);
  padding: 16px;
}

.ledger-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-line);
}

.ledger-widget__id {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-main);
}

.ledger-widget__status {
  padding: 2px 8px;
  background-color: var(--accent-tint);
  color: var(--accent-primary);
  font-size: 0.75rem;
  font-weight: 700;
}

.ledger-widget__tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.ledger-widget__tab {
  min-height: 44px;
  padding: 6px 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
}

.ledger-widget__tab--active {
  background-color: var(--text-main);
  color: var(--bg-surface);
  border-color: var(--text-main);
}

.ledger-widget__pane[hidden] {
  display: none;
}

.ledger-widget__table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-surface);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  margin-top: 10px;
}

.ledger-widget__table th,
.ledger-widget__table td {
  border: 1px solid var(--border-line);
  padding: 8px 10px;
  text-align: left;
}

.ledger-widget__table th {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  font-weight: 700;
}

.ledger-widget__code {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-weight: 700;
}

.hero-panel__svg {
  width: 100%;
  height: auto;
}

/* ==========================================================================
   Section Common (BEM: .content-section)
   ========================================================================== */

.content-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--border-line);
}

.content-section--surface {
  background-color: var(--bg-surface);
}

.content-section__header {
  max-width: 740px;
  margin-bottom: 36px;
}

.content-section__title {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  line-height: 1.3;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}

.content-section__desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Features as Financial/Traffic Workflows (BEM: .feature-matrix) — 4 Cards
   ========================================================================== */

.feature-matrix {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border-line);
  border-left: 1px solid var(--border-line);
  background-color: var(--bg-surface);
}

.feature-matrix__card {
  padding: 28px 24px;
  border-right: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-matrix__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feature-matrix__icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-tint);
  color: var(--accent-primary);
  border: 1px solid var(--border-line);
}

.feature-matrix__code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  background-color: var(--bg-page);
  padding: 3px 8px;
  border: 1px solid var(--border-line);
}

.feature-matrix__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.feature-matrix__text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Security & Privacy Transparency Ledger Callout */
.security-ledger {
  margin-top: 24px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  border-left: 4px solid var(--accent-primary);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.security-ledger__title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}

.security-ledger__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.security-ledger__badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.security-ledger__badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 10px;
  background-color: var(--accent-tint);
  color: var(--accent-primary);
}

/* ==========================================================================
   Use Cases Section (BEM: .scenario-board) — 4 Cards
   ========================================================================== */

.scenario-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.scenario-board__item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scenario-board__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-line);
}

.scenario-board__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
}

.scenario-board__device {
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 4px 10px;
  background-color: var(--accent-tint);
  color: var(--accent-primary);
}

.scenario-board__desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Streaming & AI Support (BEM: .platform-ledger)
   ========================================================================== */

.platform-ledger {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border-line);
  border-left: 1px solid var(--border-line);
  background-color: var(--bg-surface);
}

.platform-ledger__cell {
  padding: 20px;
  border-right: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.platform-ledger__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.platform-ledger__icon {
  width: 24px;
  height: 24px;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.platform-ledger__name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.platform-ledger__note {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.platform-ledger__footnote {
  margin-top: 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Pricing Section & Plan Ledger Filter (BEM: .pricing-grid) — 3 Tiers
   ========================================================================== */

.pricing-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.pricing-filter__btn {
  min-height: 44px;
  padding: 8px 16px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
}

.pricing-filter__btn--active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

.pricing-grid__card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-variant-numeric: tabular-nums;
}

.pricing-grid__card--dimmed {
  opacity: 0.45;
}

.pricing-grid__card--featured {
  border: 2px solid var(--accent-primary);
  position: relative;
}

.pricing-grid__badge {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 10px;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pricing-grid__audience {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 6px;
}

.pricing-grid__name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.pricing-grid__price {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.pricing-grid__unit {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-grid__cycle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-line);
}

.pricing-grid__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.pricing-grid__feature-item {
  font-size: 0.9375rem;
  color: var(--text-main);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.pricing-grid__check {
  color: var(--accent-primary);
  font-weight: 800;
  flex-shrink: 0;
}

/* Ledger Comparison Table (Desktop table, Mobile stacked detail cards) */
.ledger-matrix {
  margin-top: 32px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  padding: 20px;
}

.ledger-matrix__caption {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  text-align: left;
}

.ledger-matrix__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.ledger-matrix__table th,
.ledger-matrix__table td {
  border: 1px solid var(--border-line);
  padding: 10px 12px;
  text-align: left;
}

.ledger-matrix__table th {
  background-color: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-main);
}

@media (max-width: 767px) {
  .ledger-matrix__table thead {
    display: none;
  }
  .ledger-matrix__table,
  .ledger-matrix__table tbody,
  .ledger-matrix__table tr,
  .ledger-matrix__table td {
    display: block;
    width: 100%;
  }
  .ledger-matrix__table tr {
    margin-bottom: 12px;
    border: 1px solid var(--border-line);
    background-color: var(--bg-page);
  }
  .ledger-matrix__table td {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border: none;
    border-bottom: 1px solid var(--border-line);
  }
  .ledger-matrix__table td::before {
    content: attr(data-label);
    font-weight: 700;
    color: var(--text-main);
  }
}

/* ==========================================================================
   FAQ Accordion (BEM: .faq-list)
   ========================================================================== */

.faq-list {
  max-width: 840px;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-line);
}

.faq-list__item {
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-surface);
}

.faq-list__trigger {
  width: 100%;
  min-height: 54px;
  padding: 16px 20px;
  background: none;
  border: none;
  text-align: left;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}

.faq-list__trigger:hover {
  color: var(--accent-primary);
}

.faq-list__indicator {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-list__trigger[aria-expanded="true"] .faq-list__indicator {
  transform: rotate(45deg);
}

.faq-list__panel {
  padding: 0 20px 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.faq-list__panel[hidden] {
  display: none;
}

/* ==========================================================================
   Final CTA Section (BEM: .final-cta)
   ========================================================================== */

.final-cta {
  padding: 56px 0;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
}

.final-cta__box {
  background-color: var(--accent-tint);
  border: 2px solid var(--accent-primary);
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.final-cta__title {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}

.final-cta__text {
  font-size: 1rem;
  color: var(--text-main);
  max-width: 640px;
}

/* ==========================================================================
   Guides Index & Article Pages (BEM: .guide-catalog, .article-view)
   ========================================================================== */

.breadcrumb-nav {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-surface);
  font-size: 0.875rem;
}

.breadcrumb-nav__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.breadcrumb-nav__link {
  color: var(--accent-primary);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.breadcrumb-nav__link:hover {
  text-decoration: underline;
}

.guide-catalog {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.guide-catalog__card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
}

.guide-catalog__thumb {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--border-line);
  background-color: var(--bg-subtle);
}

.guide-catalog__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 12px;
}

.guide-catalog__meta {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  display: flex;
  gap: 12px;
  font-variant-numeric: tabular-nums;
}

.guide-catalog__title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
}

.guide-catalog__title-link {
  color: var(--text-main);
  text-decoration: none;
}

.guide-catalog__title-link:hover {
  color: var(--accent-primary);
}

.guide-catalog__excerpt {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  flex: 1;
}

.guide-catalog__readmore {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--accent-primary);
  text-decoration: none;
}

.article-view {
  padding: 40px 0 64px;
}

.article-view__container {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  padding: 28px 20px;
}

.article-view__header {
  padding-bottom: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border-line);
}

.article-view__title {
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.3;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.article-view__byline {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-variant-numeric: tabular-nums;
}

.article-view__content h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 32px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-line);
}

.article-view__content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 22px 0 10px;
}

.article-view__content p {
  margin-bottom: 16px;
  color: var(--text-main);
  font-size: 1rem;
}

.article-view__content ul,
.article-view__content ol {
  margin: 0 0 18px 22px;
  color: var(--text-main);
}

.article-view__content li {
  margin-bottom: 8px;
}

.article-view__table-wrap {
  overflow-x: auto;
  margin: 20px 0;
}

.article-view__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.article-view__table th,
.article-view__table td {
  border: 1px solid var(--border-line);
  padding: 10px 12px;
  text-align: left;
}

.article-view__table th {
  background-color: var(--bg-subtle);
  font-weight: 700;
}

.article-view__cta-box {
  margin-top: 36px;
  padding: 24px;
  background-color: var(--accent-tint);
  border: 2px solid var(--accent-primary);
}

.article-view__cta-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.article-view__cta-desc {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 16px;
}

.article-view__related {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-line);
}

.article-view__related-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-view__related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-view__related-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
}

/* ==========================================================================
   Footer & Mobile Sticky CTA (BEM: .site-footer, .mobile-bar)
   ========================================================================== */

.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-line);
  padding: 40px 0 88px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.site-footer__nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
}

.site-footer__link:hover {
  color: var(--accent-primary);
  text-decoration: underline;
}

.site-footer__disclosure {
  padding-top: 16px;
  border-top: 1px solid var(--border-line);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-line);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transform: translateY(100%);
  transition: transform 0.25s ease;
}

.mobile-bar--visible {
  transform: translateY(0);
}

.mobile-bar__text {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.mobile-bar__btn {
  min-height: 44px;
  padding: 8px 18px;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (min-width: 768px) {
  .layout-shell {
    padding: 0 24px;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: flex;
    align-items: center;
    gap: 16px;
    position: static;
    background: none;
    border: none;
    padding: 0;
  }

  .site-header__menu {
    flex-direction: row;
    align-items: center;
    gap: 4px;
  }

  .site-header__cta {
    margin-top: 0;
  }

  .hero-panel {
    padding: 60px 0 68px;
  }

  .hero-panel__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
  }

  .feature-matrix {
    grid-template-columns: repeat(2, 1fr);
  }

  .security-ledger {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }

  .scenario-board {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .guide-catalog {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-view__container {
    padding: 40px 48px;
  }

  .final-cta__box {
    flex-direction: row;
    align-items: center;
    padding: 40px 48px;
  }

  .site-footer {
    padding-bottom: 40px;
  }

  .mobile-bar {
    display: none;
  }
}

@media (min-width: 1024px) {
  .feature-matrix {
    grid-template-columns: repeat(4, 1fr);
  }

  .guide-catalog {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}