/* ==========================================================================
   九云 (9yunjichang.mom) — 核心样式表
   设计规范：Layer 1.5 — Japanese Convenience Store Conversion UI (日式便利店货架与商品标签美学)
   配色体系：Background #FAF9F5 | Primary #252525 | Secondary #4D7765 | Accent #E65B46 | Highlight #F2D36B | Surface #FFFFFF
   ========================================================================== */

:root {
  --color-bg: #faf9f5;
  --color-surface: #ffffff;
  --color-surface-warm: #f3f1ea;
  --color-primary: #252525;
  --color-text-secondary: #3f3f3c;
  --color-text-muted: #5c5b57;
  --color-secondary: #4d7765;
  --color-secondary-soft: #e6efe9;
  --color-accent: #e65b46;
  --color-accent-hover: #cc4733;
  --color-accent-soft: #fdece9;
  --color-highlight: #f2d36b;
  --color-highlight-soft: #fcf4d9;
  --color-border: #252525;
  --color-border-subtle: #dcd8ce;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --max-width: 1140px;
  --header-height: 70px;
  --radius-card: 10px;
  --radius-tag: 6px;
  --radius-pill: 999px;
}

*,
*::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(--color-primary);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@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 {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-primary);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

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

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

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

ul,
ol {
  list-style: none;
}

.layout-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* --------------------------------------------------------------------------
   Header — 日式便利店招牌导视栏 (Konbini Signboard Header)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(250, 249, 245, 0.94);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--color-primary);
}

.site-header::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--color-secondary) 0%, var(--color-secondary) 33%, var(--color-highlight) 33%, var(--color-highlight) 66%, var(--color-accent) 66%, var(--color-accent) 100%);
}

.site-header__inner {
  height: calc(var(--header-height) - 4px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.01em;
  min-height: 44px;
}

.site-header__logo:hover {
  color: var(--color-accent);
}

.site-header__logo-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.site-header__logo-tag {
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--color-highlight);
  color: var(--color-primary);
  padding: 0.125rem 0.45rem;
  border: 1.5px solid var(--color-primary);
  border-radius: 4px;
}

.site-header__menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-tag);
  color: var(--color-primary);
  cursor: pointer;
}

.site-header__nav {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-primary);
  padding: 1rem 1.25rem;
  box-shadow: 0 10px 24px rgba(37, 37, 37, 0.12);
}

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

.site-header__nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.site-header__nav-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.45rem 0.85rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-primary);
  border-radius: var(--radius-tag);
  border: 1.5px solid transparent;
}

.site-header__nav-link:hover,
.site-header__nav-link--active {
  color: var(--color-primary);
  background-color: var(--color-highlight);
  border-color: var(--color-primary);
}

.site-header__actions {
  display: none;
}

@media (min-width: 768px) {
  .site-header__menu-btn {
    display: none;
  }
  .site-header__nav {
    display: block;
    position: static;
    background: transparent;
    border-bottom: none;
    padding: 0;
    box-shadow: none;
  }
  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: 0.375rem;
  }
  .site-header__actions {
    display: flex;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   Buttons & Product Action Labels (触控目标 ≥ 44px，日式标签立体按压感)
   -------------------------------------------------------------------------- */
.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.625rem 1.5rem;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  border-radius: var(--radius-tag);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  box-shadow: 0 3px 0 var(--color-primary);
  transition: transform 0.14s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.14s ease, background-color 0.14s ease;
}

.action-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 0 var(--color-primary);
}

.action-btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 0 var(--color-primary);
}

.action-btn--primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.action-btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
}

.action-btn--secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
}

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

.action-btn--compact {
  min-height: 44px;
  padding: 0.45rem 1.125rem;
  font-size: 0.9375rem;
}

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

/* --------------------------------------------------------------------------
   Section Shelf Layout & Quick-Read Labels
   -------------------------------------------------------------------------- */
.page-section {
  padding: 3.75rem 0;
  border-bottom: 1.5px solid var(--color-border-subtle);
}

.page-section--alt {
  background-color: var(--color-surface-warm);
}

.page-section__header {
  max-width: 740px;
  margin-bottom: 2.25rem;
}

.page-section__shelf-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--color-secondary);
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-tag);
  border: 1.5px solid var(--color-primary);
  margin-bottom: 0.75rem;
}

.page-section__title {
  font-size: clamp(1.5rem, 2.8vw, 2.05rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 0.625rem;
  letter-spacing: -0.015em;
}

.page-section__desc {
  font-size: 1.03125rem;
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Hero Section — 日式便利店整齐货架 (Neatly Arranged Product Shelf)
   -------------------------------------------------------------------------- */
.hero-panel {
  padding: 2.75rem 0 3.75rem;
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
}

.hero-panel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-panel {
    padding: 4rem 0 4.5rem;
  }
  .hero-panel__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }
}

.hero-panel__status-bar {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  background-color: var(--color-highlight);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  font-size: 0.875rem;
  font-weight: 800;
  margin-bottom: 1.125rem;
  box-shadow: 2px 2px 0 var(--color-primary);
}

.hero-panel__status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  border: 1.5px solid var(--color-primary);
}

.hero-panel__title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-panel__subtitle {
  font-size: 1.09375rem;
  line-height: 1.68;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  max-width: 580px;
}

/* Benefit Quick-Read Product Tags */
.hero-panel__benefit-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.benefit-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  font-size: 0.84375rem;
  font-weight: 700;
  color: var(--color-primary);
}

.benefit-pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.hero-panel__cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.875rem;
  margin-bottom: 0.875rem;
}

.hero-panel__reassurance {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-secondary);
  background-color: var(--color-secondary-soft);
  border: 1.5px solid var(--color-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-tag);
  margin-bottom: 1.75rem;
}

.hero-panel__facts {
  border-top: 2px dashed var(--color-border-subtle);
  padding-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
  gap: 0.75rem;
}

.hero-panel__fact-item {
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  padding: 0.625rem 0.75rem;
}

.hero-panel__fact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
}

.hero-panel__fact-value {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* 右侧：日式便利店商品陈列货架 (Konbini Product Shelf Rack) */
.hero-panel__console {
  background-color: var(--color-surface);
  border: 2.5px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.125rem;
  box-shadow: 6px 6px 0 var(--color-primary);
}

.hero-panel__console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.875rem;
  background-color: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-tag);
  font-size: 0.875rem;
  font-weight: 800;
}

.hero-panel__console-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: var(--color-highlight);
  color: var(--color-primary);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 800;
}

.hero-panel__ledger {
  margin-top: 0.875rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  font-size: 0.8125rem;
}

.hero-panel__ledger-cell {
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  padding: 0.45rem 0.6rem;
}

.hero-panel__ledger-key {
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  display: block;
}

.hero-panel__ledger-val {
  font-weight: 800;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Filter Chips (紧凑货架分类筛选标签)
   -------------------------------------------------------------------------- */
.shelf-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
}

.shelf-filter__label {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-right: 0.25rem;
}

.shelf-filter__chip {
  min-height: 44px;
  padding: 0.4rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 800;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform 0.12s ease, background-color 0.12s ease;
}

.shelf-filter__chip:hover {
  background-color: var(--color-highlight-soft);
  transform: translateY(-1px);
}

.shelf-filter__chip--active {
  background-color: var(--color-highlight);
  color: var(--color-primary);
  box-shadow: 0 2px 0 var(--color-primary);
}

/* --------------------------------------------------------------------------
   Features Grid (模块化便利店商品属性卡，悬停轻微抬升)
   -------------------------------------------------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-grid__card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  box-shadow: 0 3px 0 var(--color-primary);
  transition: transform 0.16s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.16s ease, border-color 0.16s ease;
}

.feature-grid__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 7px 0 var(--color-primary);
}

.feature-grid__card--dimmed {
  opacity: 0.48;
}

.feature-grid__card--highlighted {
  border-color: var(--color-accent);
  background-color: #fffdf9;
}

.feature-grid__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1.5px dashed var(--color-border-subtle);
}

.feature-grid__icon {
  width: 44px;
  height: 44px;
  padding: 0.5rem;
  background-color: var(--color-highlight);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-grid__audience {
  font-size: 0.8125rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  background-color: var(--color-secondary-soft);
  color: var(--color-secondary);
  border: 1.5px solid var(--color-secondary);
  border-radius: var(--radius-tag);
}

.feature-grid__title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

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

/* --------------------------------------------------------------------------
   Usage Scenarios (4 Cards — 商品食用/使用场景便签)
   -------------------------------------------------------------------------- */
.scenario-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.125rem;
}

@media (min-width: 768px) {
  .scenario-board {
    grid-template-columns: repeat(2, 1fr);
  }
}

.scenario-board__item {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.375rem 1.5rem;
  box-shadow: 0 3px 0 var(--color-primary);
  transition: transform 0.15s ease;
}

.scenario-board__item:hover {
  transform: translateY(-3px);
}

.scenario-board__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-bottom: 0.65rem;
  margin-bottom: 0.65rem;
  border-bottom: 1.5px solid var(--color-border-subtle);
}

.scenario-board__title {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
}

.scenario-board__device {
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--color-primary);
  background-color: var(--color-highlight);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  padding: 0.15rem 0.55rem;
}

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

/* --------------------------------------------------------------------------
   Streaming & AI Matrix (紧凑双列/六列货架陈列网格)
   -------------------------------------------------------------------------- */
.matrix-table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .matrix-table {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .matrix-table {
    grid-template-columns: repeat(6, 1fr);
  }
}

.matrix-table__cell {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.125rem 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  box-shadow: 0 2px 0 var(--color-primary);
  transition: transform 0.14s ease;
}

.matrix-table__cell:hover {
  transform: translateY(-3px);
  background-color: var(--color-highlight-soft);
}

.matrix-table__icon {
  width: 28px;
  height: 28px;
  color: var(--color-secondary);
}

.matrix-table__name {
  font-size: 1.03125rem;
  font-weight: 800;
  color: var(--color-primary);
}

.matrix-table__region {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.matrix-note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Pricing Cards — 日式商品包装标签 (Simple Package Labels)
   -------------------------------------------------------------------------- */
.pricing-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 0.875rem 1.125rem;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
}

.pricing-toolbar__status {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-toolbar__status-pill {
  background-color: var(--color-secondary);
  color: #ffffff;
  font-size: 0.8125rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-tag);
}

.pricing-deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

@media (min-width: 900px) {
  .pricing-deck {
    grid-template-columns: repeat(3, 1fr);
  }
}

.price-card {
  background-color: var(--color-surface);
  border: 2.5px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 4px 0 var(--color-primary);
  transition: transform 0.16s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.16s ease, background-color 0.16s ease;
  cursor: pointer;
}

.price-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 0 var(--color-primary);
}

.price-card--featured {
  border-color: var(--color-primary);
  background-color: #ffffff;
  box-shadow: 0 6px 0 var(--color-accent);
  position: relative;
}

.price-card--selected {
  outline: 3px solid var(--color-secondary);
  background-color: #fcfffd;
}

.price-card__header-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.price-card__badge {
  display: inline-block;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.78125rem;
  font-weight: 800;
  padding: 0.2rem 0.65rem;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
}

.price-card__code {
  font-family: var(--font-mono);
  font-size: 0.78125rem;
  font-weight: 800;
  color: var(--color-primary);
  background-color: var(--color-highlight);
  padding: 0.15rem 0.5rem;
  border: 1.5px solid var(--color-primary);
  border-radius: 4px;
}

.price-card__audience {
  font-size: 0.84375rem;
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: 0.25rem;
}

.price-card__name {
  font-size: 1.375rem;
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 0.875rem;
}

.price-card__price-row {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1.125rem;
  background-color: var(--color-highlight-soft);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
}

.price-card__currency {
  font-size: 1.125rem;
  font-weight: 800;
}

.price-card__amount {
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-primary);
}

.price-card__period {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-secondary);
}

.price-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.price-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  padding-bottom: 0.45rem;
  border-bottom: 1px dashed var(--color-border-subtle);
}

.price-card__check {
  width: 18px;
  height: 18px;
  color: var(--color-secondary);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.price-card__reassure {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.625rem;
}

/* --------------------------------------------------------------------------
   FAQ Accordion (手风琴折叠便签)
   -------------------------------------------------------------------------- */
.faq-stack {
  max-width: 840px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-stack__item {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 0 var(--color-primary);
}

.faq-stack__summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 54px;
  padding: 0.95rem 1.25rem;
  font-size: 1.03125rem;
  font-weight: 800;
  color: var(--color-primary);
  cursor: pointer;
}

.faq-stack__summary::-webkit-details-marker {
  display: none;
}

.faq-stack__indicator {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-highlight);
  border: 1.5px solid var(--color-primary);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 800;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.faq-stack__item[open] .faq-stack__indicator {
  background-color: var(--color-accent);
  color: #ffffff;
  transform: rotate(45deg);
}

.faq-stack__answer {
  padding: 0 1.25rem 1.125rem;
  color: var(--color-text-secondary);
  border-top: 1.5px dashed var(--color-border-subtle);
  padding-top: 0.875rem;
}

/* --------------------------------------------------------------------------
   Final CTA Banner (收银台快速通行横幅)
   -------------------------------------------------------------------------- */
.cta-banner {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 3.75rem 0;
  border-top: 2px solid var(--color-primary);
}

.cta-banner__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .cta-banner__inner {
    flex-direction: row;
    align-items: center;
  }
}

.cta-banner__title {
  font-size: clamp(1.45rem, 2.8vw, 1.95rem);
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 0.45rem;
}

.cta-banner__sub {
  color: var(--color-highlight);
  font-size: 1.03125rem;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Footer (仅放导航、联盟披露与版权)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-surface);
  border-top: 2px solid var(--color-primary);
  padding: 2.5rem 0 5rem;
  margin-top: auto;
}

@media (min-width: 768px) {
  .site-footer {
    padding-bottom: 2.5rem;
  }
}

.site-footer__top {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1.5px dashed var(--color-border-subtle);
}

@media (min-width: 768px) {
  .site-footer__top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.site-footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.9375rem;
}

.site-footer__bottom {
  padding-top: 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   Mobile Sticky Bottom CTA & Action Confirmation Toast
   -------------------------------------------------------------------------- */
.mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background-color: var(--color-surface);
  padding: 0.65rem 1.125rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.875rem;
  transform: translateY(100%);
  transition: transform 0.2s ease;
  border-top: 2.5px solid var(--color-primary);
  box-shadow: 0 -4px 16px rgba(37, 37, 37, 0.12);
}

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

.mobile-bar__text {
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 800;
}

.mobile-bar__price {
  display: inline-block;
  background-color: var(--color-highlight);
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  margin-left: 0.25rem;
}

@media (min-width: 768px) {
  .mobile-bar {
    display: none;
  }
}

/* 点击注册/试用时的即时确认标签反馈 */
.konbini-toast {
  position: fixed;
  bottom: 5rem;
  right: 1.25rem;
  z-index: 120;
  background-color: var(--color-secondary);
  color: #ffffff;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-tag);
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
  font-weight: 800;
  box-shadow: 4px 4px 0 var(--color-primary);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.konbini-toast--show {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Guides Index & Article Pages & Legal Pages
   -------------------------------------------------------------------------- */
.breadcrumb-bar {
  background-color: var(--color-surface-warm);
  border-bottom: 1.5px solid var(--color-border-subtle);
  padding: 0.65rem 0;
  font-size: 0.875rem;
}

.breadcrumb-bar__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-weight: 700;
}

.breadcrumb-bar__link {
  color: var(--color-primary);
  font-weight: 800;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.guide-catalog {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .guide-catalog {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .guide-catalog {
    grid-template-columns: repeat(3, 1fr);
  }
}

.guide-card {
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  box-shadow: 0 4px 0 var(--color-primary);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 7px 0 var(--color-primary);
}

.guide-card__thumb {
  background-color: var(--color-highlight-soft);
  border-bottom: 2px solid var(--color-primary);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.guide-card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.guide-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.625rem;
}

.guide-card__title {
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.guide-card__excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.article-layout {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.article-doc {
  background-color: var(--color-surface);
  border: 2.5px solid var(--color-primary);
  border-radius: var(--radius-card);
  box-shadow: 6px 6px 0 var(--color-primary);
  padding: 2rem 1.5rem;
}

@media (min-width: 768px) {
  .article-doc {
    padding: 2.75rem 3rem;
  }
}

.article-doc__header {
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--color-primary);
}

.article-doc__title {
  font-size: clamp(1.6rem, 3.3vw, 2.15rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 0.875rem;
}

.article-doc__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.article-doc__content h2 {
  font-size: 1.375rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: 2.125rem 0 0.875rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--color-highlight-soft);
  border-left: 4px solid var(--color-primary);
}

.article-doc__content h3 {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 1.5rem 0 0.5rem;
}

.article-doc__content p {
  margin-bottom: 1.125rem;
  color: var(--color-text-secondary);
  font-size: 1.03125rem;
}

.article-doc__content ul,
.article-doc__content ol {
  margin: 0 0 1.25rem 1.25rem;
  color: var(--color-text-secondary);
}

.article-doc__content ul {
  list-style: disc;
}

.article-doc__content ol {
  list-style: decimal;
}

.article-doc__content li {
  margin-bottom: 0.5rem;
}

.article-doc__callout {
  background-color: var(--color-secondary-soft);
  border: 1.5px solid var(--color-secondary);
  border-radius: var(--radius-tag);
  padding: 1.125rem 1.25rem;
  margin: 1.5rem 0;
}

.article-doc__cta-box {
  margin-top: 2.5rem;
  background-color: var(--color-highlight-soft);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-card);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .article-doc__cta-box {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.article-doc__related {
  margin-top: 2.25rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--color-border-subtle);
}

.article-doc__related-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.875rem;
}

@media (min-width: 640px) {
  .article-doc__related-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.article-doc__related-link {
  display: block;
  padding: 0.875rem 1rem;
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-tag);
  font-weight: 800;
  color: var(--color-primary);
}

.article-doc__related-link:hover {
  background-color: var(--color-highlight);
  color: var(--color-primary);
}