.page-faq {
  --faq-rail-w: 236px;
  --faq-ink-soft: #3B4547;
  --faq-ink-mute: #5E6A6C;
  --faq-line-soft: rgba(21, 24, 27, 0.09);
  background: var(--mist);
}

/* ---------- 首屏封面 ---------- */
.page-faq .faq-lead {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(20px, 4vw, 44px));
  padding-bottom: clamp(44px, 7vw, 84px);
  color: var(--mist);
  background:
    radial-gradient(circle at 86% 10%, rgba(223, 163, 42, 0.24), transparent 52%),
    radial-gradient(circle at 6% 98%, rgba(31, 111, 99, 0.42), transparent 48%),
    linear-gradient(155deg, var(--celadon-deep) 0%, var(--asphalt) 92%);
}

.page-faq .faq-lead::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(245, 247, 244, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 247, 244, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 80%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 80%);
}

.page-faq .faq-lead__inner {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(22px, 4vw, 38px);
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: rgba(245, 247, 244, 0.58);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(245, 247, 244, 0.32);
}

.page-faq .breadcrumb a {
  color: rgba(245, 247, 244, 0.8);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-faq .faq-lead__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-faq .faq-lead h1 {
  margin: 0 0 20px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.875rem, 6vw, 3.375rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-lead__lede {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(0.9375rem, 1.4vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(245, 247, 244, 0.85);
}

.page-faq .faq-lead .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding-left: 26px;
  position: relative;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-lead .eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 18px;
  height: 2px;
  background: var(--amber);
}

.page-faq .faq-lead__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(245, 247, 244, 0.2);
  background: linear-gradient(140deg, var(--celadon) 0%, var(--celadon-deep) 58%, rgba(223, 163, 42, 0.42) 100%);
  aspect-ratio: 3 / 2;
}

.page-faq .faq-lead__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-lead__facts {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 5vw, 56px);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(245, 247, 244, 0.16);
}

.page-faq .faq-fact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  background: rgba(14, 59, 53, 0.62);
}

.page-faq .faq-fact__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.125rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fact__label {
  font-size: 0.8125rem;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: rgba(245, 247, 244, 0.72);
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  padding: clamp(44px, 7vw, 92px) 0 clamp(56px, 8vw, 112px);
}

.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

/* 场景索引 */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--faq-ink-mute);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--faq-ink-soft);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--celadon-pale);
  border-color: var(--celadon-pale);
  color: var(--celadon-deep);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .faq-rail__idx {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-faq .faq-rail__link svg {
  width: 10px;
  height: 10px;
  flex: none;
}

/* 状态点 */
.page-faq .faq-status__dot {
  flex: none;
}

.page-faq .faq-status__dot--red {
  color: var(--track-red);
}

.page-faq .faq-status__dot--green {
  color: var(--celadon);
}

.page-faq .faq-status__dot--amber {
  color: var(--amber);
}

/* 分组 */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(44px, 6vw, 80px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--celadon-deep);
}

.page-faq .faq-group--last .faq-group__head {
  border-bottom-color: var(--amber);
}

.page-faq .faq-group__num {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: var(--celadon-pale);
  color: var(--celadon-deep);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1;
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.375rem, 3.4vw, 1.875rem);
  line-height: 1.1;
  letter-spacing: -0.012em;
  color: var(--asphalt);
}

.page-faq .faq-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  padding: 5px 13px 5px 11px;
  border-radius: var(--pill);
  background: var(--amber-pale);
  color: var(--celadon-deep);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.page-faq .faq-status svg {
  width: 13px;
  height: 13px;
}

.page-faq .faq-group__intro {
  margin: 18px 0 6px;
  max-width: 44rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--faq-ink-mute);
}

/* 问答条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 2px;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--asphalt);
  transition: color 0.18s ease;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::after {
  content: "";
  flex: none;
  width: 22px;
  height: 22px;
  margin: 2px 0 0 auto;
  border-radius: var(--pill);
  border: 1.5px solid var(--celadon);
  background-color: transparent;
  background-image:
    linear-gradient(var(--celadon), var(--celadon)),
    linear-gradient(var(--celadon), var(--celadon));
  background-repeat: no-repeat;
  background-position: center center, center center;
  background-size: 10px 1.5px, 1.5px 10px;
  transition: background-color 0.2s ease, background-size 0.2s ease;
}

.page-faq .faq-item summary:hover {
  color: var(--celadon);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
  border-radius: var(--r-sm);
}

.page-faq .faq-item[open] summary::after {
  background-color: var(--celadon);
  background-image:
    linear-gradient(var(--mist), var(--mist)),
    linear-gradient(var(--mist), var(--mist));
  background-size: 10px 1.5px, 1.5px 0;
}

.page-faq .faq-item__body {
  max-width: 42rem;
  padding: 0 0 26px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__body > * + * {
  margin-top: 14px;
}

.page-faq .faq-item__body p {
  margin: 0;
}

.page-faq .faq-item__body a,
.page-faq .faq-contact a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid var(--celadon-pale);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible,
.page-faq .faq-contact a:hover,
.page-faq .faq-contact a:focus-visible {
  color: var(--celadon-deep);
  border-bottom-color: var(--amber);
}

/* 分步排查 */
.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 40px;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.18em;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: var(--pill);
  background: var(--celadon-pale);
  color: var(--celadon-deep);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
}

/* 联系卡片 */
.page-faq .faq-contact {
  margin-top: 26px;
  padding: clamp(22px, 4vw, 36px);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--celadon-deep) 0%, var(--asphalt) 100%);
  color: var(--mist);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 18px;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(245, 247, 244, 0.16);
}

.page-faq .faq-contact__key {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: rgba(245, 247, 244, 0.6);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.5;
  word-break: break-word;
  color: var(--amber);
}

.page-faq .faq-contact__note {
  margin: 22px 0 0;
  max-width: 40rem;
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(245, 247, 244, 0.84);
}

.page-faq .faq-contact a {
  color: var(--amber);
  border-bottom-color: rgba(223, 163, 42, 0.45);
}

.page-faq .faq-contact a:hover,
.page-faq .faq-contact a:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

.page-faq .faq-help__media {
  margin: 24px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, var(--celadon-pale) 0%, rgba(223, 163, 42, 0.28) 100%);
  aspect-ratio: 3 / 2;
}

.page-faq .faq-help__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-lead__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-contact__item {
    padding: 0 22px 4px;
    border-bottom: 0;
    border-left: 1px solid rgba(245, 247, 244, 0.16);
  }

  .page-faq .faq-contact__item:first-child {
    padding-left: 0;
    border-left: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-lead__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .page-faq .faq-body__inner {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-faq .faq-rail__list {
    display: grid;
    gap: 4px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-rail__link {
    padding: 11px 14px;
    white-space: normal;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--celadon);
  }

  .page-faq .faq-rail__link svg {
    width: 20px;
    height: 20px;
  }

  .page-faq .faq-rail__idx {
    display: none;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-lead__facts {
    max-width: 900px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .breadcrumb a,
  .page-faq .faq-rail__link,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after,
  .page-faq .faq-item__body a,
  .page-faq .faq-contact a {
    transition: none;
  }
}