.page-guarantee-scope {
  --scope-rail: 168px;
  --scope-rail-gap: var(--space-8);
}

/* 首屏 */
.page-guarantee-scope .scope-hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

.page-guarantee-scope .scope-hero-copy h1 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
}

.page-guarantee-scope .scope-hero-copy .lead {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-guarantee-scope .scope-hero-visual .media {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-guarantee-scope .scope-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 不对称分栏 */
.page-guarantee-scope .scope-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-guarantee-scope .scope-aside {
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-primary);
}

.page-guarantee-scope .aside-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary);
  margin: 0 0 var(--space-1);
}

.page-guarantee-scope .aside-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-guarantee-scope .aside-note {
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
  margin: var(--space-1) 0 0;
}

/* 正文块 */
.page-guarantee-scope .scope-body p {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
}

.page-guarantee-scope .scope-body p:last-child {
  margin-bottom: 0;
}

.page-guarantee-scope .scope-thesis {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1.5;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  border-left: var(--border-thin) solid var(--color-primary);
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  margin: var(--space-4) 0 !important;
}

/* 三个边界问题 */
.page-guarantee-scope .scope-questions {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-questions li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink);
}

.page-guarantee-scope .qmark {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-primary);
  border: var(--border-thin) solid currentColor;
  border-radius: var(--radius-sm);
  padding: 0 6px;
}

/* 适用情境 */
.page-guarantee-scope .situation-list {
  margin-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .situation {
  padding: var(--space-4) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .situation-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.page-guarantee-scope .situation-head h3 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-guarantee-scope .situation-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: 0;
}

.page-guarantee-scope .situation-pair dt {
  display: flex;
  align-items: center;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
  margin-bottom: 6px;
}

.page-guarantee-scope .situation-pair dt::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border: var(--border-thin) solid var(--color-ink-muted);
  background: transparent;
}

.page-guarantee-scope .situation-pair dt.is-in::before {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.page-guarantee-scope .situation-pair dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

/* 计费边界表 */
.page-guarantee-scope .scope-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-3) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-guarantee-scope .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-guarantee-scope .legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
}

.page-guarantee-scope .legend-dot--in {
  background: var(--color-primary);
}

.page-guarantee-scope .legend-dot--out {
  border: var(--border-thin) solid var(--color-ink-muted);
}

.page-guarantee-scope .scope-table-wrap {
  margin-top: var(--space-3);
  overflow-x: auto;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-guarantee-scope .scope-table th,
.page-guarantee-scope .scope-table td {
  text-align: left;
  vertical-align: top;
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.page-guarantee-scope .scope-table thead th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  background: var(--color-surface-deep);
  white-space: nowrap;
}

.page-guarantee-scope .scope-table tbody th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  color: var(--color-ink);
  white-space: nowrap;
  width: 14%;
}

.page-guarantee-scope .num {
  font-family: var(--font-mono);
  font-size: 0.94em;
  color: var(--color-ink);
  letter-spacing: 0;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 48%, transparent);
  padding-bottom: 1px;
}

/* 折叠细则 */
.page-guarantee-scope .scope-details {
  margin-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-details details {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  transition: color 160ms ease;
}

.page-guarantee-scope .scope-details summary::-webkit-details-marker {
  display: none;
}

.page-guarantee-scope .scope-details summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-guarantee-scope .scope-details details[open] summary::after {
  content: "－";
  color: var(--color-primary);
}

.page-guarantee-scope .scope-details summary:hover {
  color: var(--color-primary);
}

.page-guarantee-scope .scope-details summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-guarantee-scope .scope-details details p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.92;
  color: var(--color-ink-soft);
}

/* 叠加关系图 */
.page-guarantee-scope .scope-figure-wrap {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .scope-figure {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
}

.page-guarantee-scope .scope-figure circle {
  fill: none;
  stroke: var(--color-ink-soft);
  stroke-width: 1;
}

.page-guarantee-scope .scope-figure .fig-line {
  stroke: var(--color-primary);
  stroke-width: 1;
  stroke-dasharray: 4 5;
}

.page-guarantee-scope .fig-label {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: 0.04em;
  fill: var(--color-ink);
}

.page-guarantee-scope .fig-sub {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  fill: var(--color-ink-muted);
}

.page-guarantee-scope .fig-cap {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  fill: var(--color-primary);
}

.page-guarantee-scope .scope-figure-cap {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-ink-muted);
}

/* 不重复购买口径 */
.page-guarantee-scope .scope-note-box {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  background: var(--color-surface-deep);
  border-left: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-guarantee-scope .note-title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-2);
  max-width: none;
}

.page-guarantee-scope .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-guarantee-scope .note-list li {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

.page-guarantee-scope .note-list li:last-child {
  margin-bottom: 0;
}

.page-guarantee-scope .note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}

/* 相邻选择 */
.page-guarantee-scope .compare-list {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .compare-list > li {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee-scope .compare-list a {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-guarantee-scope .compare-list a:hover,
.page-guarantee-scope .compare-list a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-guarantee-scope .compare-list a:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-guarantee-scope .compare-list p {
  margin: 0;
  max-width: none;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

.page-guarantee-scope .scope-body > p a {
  color: var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-line);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-guarantee-scope .scope-body > p a:hover,
.page-guarantee-scope .scope-body > p a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 下一步出口 */
.page-guarantee-scope .scope-next {
  margin-top: var(--section-y);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  padding: var(--space-8) 0;
}

.page-guarantee-scope .scope-next-inner {
  display: block;
}

.page-guarantee-scope .next-eyebrow {
  color: var(--color-contrast-accent);
}

.page-guarantee-scope .next-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  margin: var(--space-2) 0 var(--space-3);
}

.page-guarantee-scope .next-copy {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  margin: 0 0 var(--space-4);
}

.page-guarantee-scope .next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-guarantee-scope .scope-next .btn--ghost {
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

.page-guarantee-scope .scope-next .btn--ghost:hover,
.page-guarantee-scope .scope-next .btn--ghost:focus-visible {
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
}

.page-guarantee-scope .next-meta {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-contrast-ink);
}

.page-guarantee-scope .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 窄屏保底 */
@media (max-width: 480px) {
  .page-guarantee-scope .scope-hero-copy h1 {
    font-size: var(--text-2xl);
  }

  .page-guarantee-scope .scope-thesis {
    font-size: var(--text-lg);
    padding-left: var(--space-2);
  }

  .page-guarantee-scope .next-title {
    font-size: var(--text-xl);
  }
}

/* 桌面 */
@media (min-width: 760px) {
  .page-guarantee-scope .scope-hero {
    padding-top: var(--space-8);
  }

  .page-guarantee-scope .scope-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-8);
  }

  .page-guarantee-scope .situation-pair {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .page-guarantee-scope .compare-list > li {
    grid-template-columns: 220px 1fr;
    gap: var(--space-4);
    align-items: baseline;
  }
}

@media (min-width: 840px) {
  .page-guarantee-scope .scope-split {
    grid-template-columns: var(--scope-rail) 1fr;
    gap: var(--scope-rail-gap);
  }

  .page-guarantee-scope .scope-aside {
    border-top: 0;
    border-left: var(--border-thin) solid var(--color-primary);
    padding-top: 0;
    padding-left: var(--space-3);
    position: sticky;
    top: var(--space-6);
    align-self: start;
  }

  .page-guarantee-scope .scope-next {
    margin-top: var(--section-y-lg);
    padding: var(--space-8) 0 var(--space-8);
  }
}
<<<END>>>