/* ===== 页面：服务保障 ===== */
.page-guarantee {
  background-color: var(--color-surface);
  color: var(--color-ink);
  overflow-x: hidden;
}

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

.page-guarantee .g-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: calc(var(--space-1) / 4);
}

/* ---------- 首屏 ---------- */
.page-guarantee .g-hero {
  position: relative;
  isolation: isolate;
  padding-block: var(--space-6) var(--space-8);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  overflow: hidden;
}

.page-guarantee .g-hero::before {
  content: "";
  position: absolute;
  top: calc(var(--space-8) * -1.4);
  right: calc(var(--space-8) * -2);
  width: min(78%, 600px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%,
      color-mix(in srgb, var(--color-primary) 46%, transparent) 0%,
      transparent 68%);
  pointer-events: none;
}

.page-guarantee .g-hero > .container {
  position: relative;
  z-index: 1;
}

.page-guarantee .g-hero .crumb {
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-guarantee .g-hero .crumb:hover {
  color: var(--color-contrast-accent);
}

.page-guarantee .g-hero__tag {
  margin-top: var(--space-4);
}

.page-guarantee .g-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  margin: var(--space-3) 0 0;
  max-width: 18ch;
  text-wrap: balance;
}

.page-guarantee .g-hero__body {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
  align-items: start;
}

.page-guarantee .g-hero__lede {
  margin: 0;
  max-width: 44ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-guarantee .g-hero__facts {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-guarantee .g-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-guarantee .g-fact-num {
  flex: none;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-guarantee .g-hero__frame {
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

/* ---------- 三档刻度 ---------- */
.page-guarantee .g-rail {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-guarantee .g-rail__item {
  position: relative;
  padding: var(--space-6) var(--space-3) var(--space-3);
  background-color: var(--color-surface);
  color: var(--color-ink);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
}

.page-guarantee .g-rail__tag {
  position: absolute;
  top: calc(var(--space-2) * -1);
  left: var(--space-3);
}

.page-guarantee .g-rail__num {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.9;
  color: var(--color-primary);
}

.page-guarantee .g-rail__unit {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--weight-body);
  color: var(--color-ink-soft);
}

.page-guarantee .g-rail__desc {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-guarantee .g-rail__meter {
  display: block;
  height: calc(var(--space-1) / 2);
  margin-top: var(--space-3);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-deep);
  overflow: hidden;
}

.page-guarantee .g-rail__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.page-guarantee .g-rail__item--2 .g-rail__fill { width: 25%; }
.page-guarantee .g-rail__item--5 .g-rail__fill { width: 62%; }
.page-guarantee .g-rail__item--8 .g-rail__fill { width: 100%; }

/* ---------- 通用小标题 ---------- */
.page-guarantee .g-head {
  display: grid;
  gap: var(--space-2);
  max-width: 62ch;
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}

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

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

/* ---------- 三档对照 ---------- */
.page-guarantee .g-tiers {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-guarantee .g-tier-card {
  position: relative;
  padding: var(--space-6) var(--space-3) var(--space-3);
}

.page-guarantee .g-tier-card__years {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0 0 var(--space-4);
}

.page-guarantee .g-tier-card__figure {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-accent);
}

.page-guarantee .g-tier-card__unit {
  font-size: var(--text-lg);
  color: var(--color-ink-muted);
}

.page-guarantee .g-tier-card__rows {
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-guarantee .g-tier-card__rows > div {
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-guarantee .g-tier-card__rows dt {
  margin-bottom: calc(var(--space-1) / 2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-guarantee .g-tier-card__rows dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-guarantee .g-tier-fig {
  margin: var(--space-6) 0 0;
  max-width: 520px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-guarantee .g-quote {
  margin: var(--space-6) 0 0;
  max-width: var(--measure);
}

/* ---------- 响应与支持 ---------- */
.page-guarantee .g-split {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.page-guarantee .g-split__fig {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}

.page-guarantee .g-split__title {
  margin: var(--space-3) 0 var(--space-2);
  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);
}

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

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

.page-guarantee .g-support__item {
  padding: var(--space-3);
  background-color: var(--color-surface);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
}

.page-guarantee .g-support__item h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
}

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

.page-guarantee .g-support__strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-guarantee .g-support__chip {
  padding: calc(var(--space-1) / 2) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-alt);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
}

/* ---------- 配件与区域 ---------- */
.page-guarantee .g-region {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

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

.page-guarantee .g-stat {
  display: grid;
  gap: calc(var(--space-1) / 2);
  padding: var(--space-3);
  background-color: var(--color-primary-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-guarantee .g-stat__num {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-guarantee .g-stat__label {
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
}

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

.page-guarantee .g-region__fig {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}

/* ---------- 确认与联系 ---------- */
.page-guarantee .g-confirm {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  position: relative;
  overflow: hidden;
}

.page-guarantee .g-confirm::after {
  content: "";
  position: absolute;
  left: calc(var(--space-8) * -1);
  bottom: calc(var(--space-8) * -2);
  width: min(70%, 520px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 60% 40%,
      color-mix(in srgb, var(--color-accent) 32%, transparent) 0%,
      transparent 70%);
  pointer-events: none;
}

.page-guarantee .g-confirm__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.page-guarantee .g-confirm__title {
  margin: var(--space-3) 0 var(--space-4);
  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-confirm__list {
  list-style: none;
  counter-reset: gstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-guarantee .g-confirm__list li {
  counter-increment: gstep;
  position: relative;
  padding-left: var(--space-6);
}

.page-guarantee .g-confirm__list li::before {
  content: counter(gstep);
  position: absolute;
  left: 0;
  top: 0;
  width: var(--space-4);
  height: var(--space-4);
  display: grid;
  place-items: center;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-contrast-surface);
  background-color: var(--color-contrast-accent);
  border-radius: var(--radius-sm);
}

.page-guarantee .g-confirm__list h3 {
  margin: 0 0 calc(var(--space-1) / 2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-guarantee .g-confirm__list p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-guarantee .g-confirm__hint {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-guarantee .g-confirm__hint .g-link {
  color: var(--color-contrast-accent);
}

.page-guarantee .g-contact {
  padding: var(--space-4) var(--space-3);
  background-color: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-2);
}

.page-guarantee .g-contact__label {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-accent);
}

.page-guarantee .g-contact__line {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.2;
  color: var(--color-contrast-ink);
  word-break: break-all;
}

.page-guarantee .g-contact__link {
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-contrast-accent);
}

.page-guarantee .g-contact__line--phone {
  color: var(--color-contrast-accent);
  letter-spacing: 0.02em;
}

.page-guarantee .g-contact__note {
  margin: 0;
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.page-guarantee .g-contact__cta {
  margin-top: var(--space-2);
  justify-self: start;
}

.page-guarantee .g-tail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-guarantee .g-tail__note {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-guarantee .g-tail__top {
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 479px) {
  .page-guarantee .g-hero__title {
    max-width: none;
  }

  .page-guarantee .g-tail {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 760px) {
  .page-guarantee .g-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    padding-top: var(--space-2);
  }

  .page-guarantee .g-rail__item:nth-child(2) {
    transform: translateY(calc(var(--space-2) * -1));
  }

  .page-guarantee .g-rail__item:nth-child(3) {
    transform: translateY(calc(var(--space-3) * -1));
  }

  .page-guarantee .g-tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-guarantee .g-region {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    align-items: start;
  }

  .page-guarantee .g-region__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-column: 1 / -1;
  }

  .page-guarantee .g-region__fig {
    grid-column: 2 / 3;
  }

  .page-guarantee .g-confirm__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-guarantee .g-tail {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-guarantee .g-hero__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: var(--space-8);
    align-items: end;
  }

  .page-guarantee .g-split {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: var(--space-8);
  }

  .page-guarantee .g-split__fig {
    margin-top: var(--space-4);
  }

  .page-guarantee .g-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-guarantee .g-tier-fig {
    margin-left: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-guarantee .g-rail__item:nth-child(2),
  .page-guarantee .g-rail__item:nth-child(3) {
    transform: none;
  }
}