.page-guarantee .shell {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.page-guarantee .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-guarantee .breadcrumb-list a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 160ms ease, color 160ms ease;
}

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

.page-guarantee .breadcrumb-list li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-line);
}

.page-guarantee .breadcrumb-list li[aria-current] {
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */

.page-guarantee .g-hero {
  padding-top: var(--space-4);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-hero-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-guarantee .g-hero-main h1 {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-guarantee .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
}

.page-guarantee .lead {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-guarantee .g-hero-media {
  margin: 0;
}

/* ---------- 首屏数字组 ---------- */

.page-guarantee .g-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--border-thin);
  margin-top: var(--space-6);
  background-color: var(--color-line);
  border: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  background-color: var(--color-surface);
  transition: background-color 160ms ease;
}

.page-guarantee .g-figure:hover,
.page-guarantee .g-figure:focus-within {
  background-color: var(--color-surface-alt);
}

.page-guarantee .g-figure-value {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.page-guarantee .g-figure--key .g-figure-value {
  font-size: var(--text-2xl);
  color: var(--color-accent);
}

.page-guarantee .g-figure-key {
  margin-top: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: 1.3;
  color: var(--color-ink);
}

.page-guarantee .g-figure-note {
  padding-left: var(--space-2);
  border-left: var(--border-thin) solid transparent;
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-ink-muted);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-guarantee .g-figure:hover .g-figure-note,
.page-guarantee .g-figure:focus-within .g-figure-note {
  color: var(--color-ink-soft);
  border-left-color: var(--color-primary);
}

/* ---------- 案例索引 ---------- */

.page-guarantee .g-case-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-index-label {
  margin-right: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-guarantee .g-index-link {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease;
}

.page-guarantee .g-index-link:hover,
.page-guarantee .g-index-link:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-guarantee .g-case-index a.is-active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
  font-weight: var(--weight-heading);
}

/* ---------- 图片容器 ---------- */

.page-guarantee .media {
  position: relative;
  overflow: hidden;
  background-color: var(--color-surface-deep);
}

.page-guarantee .media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-guarantee .media--4x3 img {
  aspect-ratio: 4 / 3;
}

.page-guarantee .media-caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-3);
  background-image: var(--overlay-scrim);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  line-height: 1.8;
}

/* ---------- 案例分组 ---------- */

.page-guarantee .g-group {
  padding-block: var(--section-y);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-group--alt {
  background-color: var(--color-surface-alt);
}

.page-guarantee .g-group-head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  max-width: var(--measure);
}

.page-guarantee .g-group-no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
}

.page-guarantee .section-title {
  margin: 0;
  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-ink);
}

.page-guarantee .g-group-grid {
  display: grid;
  gap: var(--space-6);
}

/* ---------- 案例卡 ---------- */

.page-guarantee .g-case-list {
  display: grid;
  gap: var(--space-3);
}

.page-guarantee .g-case {
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
  background-color: transparent;
}

.page-guarantee .g-case + .g-case {
  border-top: none;
}

.page-guarantee .g-case-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  list-style: none;
  cursor: pointer;
}

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

.page-guarantee .g-case-summary::marker {
  content: "";
}

.page-guarantee .g-case-no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-guarantee .g-case-title {
  flex: 1 1 14em;
  min-width: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: 1.35;
  color: var(--color-ink);
  transition: color 160ms ease;
}

.page-guarantee .g-case-summary:hover .g-case-title,
.page-guarantee .g-case-summary:focus-visible .g-case-title {
  color: var(--color-primary);
}

.page-guarantee .g-case-toggle {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-guarantee .g-case-toggle::before {
  content: "＋";
}

.page-guarantee .g-case[open] .g-case-toggle::before {
  content: "－";
}

.page-guarantee .g-case-body {
  display: grid;
  gap: var(--space-3);
  padding-top: var(--space-3);
}

.page-guarantee .g-case-field {
  display: grid;
  gap: var(--space-1);
}

.page-guarantee .g-case-field p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-guarantee .g-case-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-guarantee .g-case-field--outcome {
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-primary);
}

.page-guarantee .g-case-outcome {
  color: var(--color-ink);
}

/* ---------- 对照选择 ---------- */

.page-guarantee .g-compare {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-compare-row {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-line);
  transition: background-color 160ms ease;
}

.page-guarantee .g-compare-row:hover {
  background-color: var(--color-highlight);
}

.page-guarantee .g-compare-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-ink);
}

.page-guarantee .g-compare-row p {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

.page-guarantee .g-compare-link {
  justify-self: start;
  align-self: center;
  padding-bottom: 2px;
  border-bottom: var(--border-thin) solid var(--color-line);
  color: var(--color-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease;
}

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

.page-guarantee .g-compare-tail {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-muted);
}

.page-guarantee .g-compare-tail a {
  color: var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-line);
  text-decoration: none;
}

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

/* ---------- 行动出口 ---------- */

.page-guarantee .g-exit {
  padding-block: var(--section-y);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-guarantee .g-exit-inner {
  display: grid;
  gap: var(--space-3);
}

.page-guarantee .g-exit-title {
  margin: 0;
  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);
}

.page-guarantee .g-exit-text {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-guarantee .g-exit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.page-guarantee .g-exit-btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.page-guarantee .g-exit-btn:hover,
.page-guarantee .g-exit-btn:focus-visible {
  border-color: var(--color-contrast-accent);
  background-color: color-mix(in srgb, var(--color-contrast-accent) 16%, transparent);
  color: var(--color-contrast-ink);
}

.page-guarantee .g-exit-btn--primary {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-guarantee .g-exit-btn--primary:hover,
.page-guarantee .g-exit-btn--primary:focus-visible {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-guarantee .g-exit-meta {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  line-height: 1.9;
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

/* ---------- 焦点 ---------- */

.page-guarantee a:focus-visible,
.page-guarantee summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: var(--space-1);
}

/* ---------- 桌面 ---------- */

@media (min-width: 800px) {
  .page-guarantee .shell {
    padding-inline: var(--space-6);
  }

  .page-guarantee .g-hero {
    padding-top: var(--space-6);
    padding-bottom: var(--section-y);
  }

  .page-guarantee .g-hero-grid {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 0.66fr);
    align-items: end;
    gap: var(--space-8);
  }

  .page-guarantee .g-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: var(--space-8);
  }

  .page-guarantee .g-group-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-guarantee .section-title {
    font-size: var(--text-3xl);
  }

  .page-guarantee .g-case-body {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-guarantee .g-compare-row {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.6fr) minmax(0, 0.6fr);
    align-items: center;
    gap: var(--space-6);
    padding-inline: var(--space-3);
  }

  .page-guarantee .g-compare-row:hover {
    background-color: var(--color-highlight);
  }

  .page-guarantee .g-exit-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: var(--space-4) var(--space-8);
  }

  .page-guarantee .g-exit-title,
  .page-guarantee .g-exit-text,
  .page-guarantee .g-exit-meta {
    grid-column: 1;
  }

  .page-guarantee .g-exit-actions {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
    margin-top: 0;
  }
}

@media (min-width: 1040px) {
  .page-guarantee .shell {
    padding-inline: 0;
  }
}