.page-faq {
  --faq-line: rgba(201, 162, 75, 0.42);
  --faq-soft: rgba(11, 42, 74, 0.08);
  --faq-answer-bg: rgba(234, 229, 220, 0.62);
  position: relative;
  background: var(--pearl);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq a {
  color: inherit;
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 56px 0 72px;
  background: var(--navy);
  color: var(--pearl);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -34vw;
  top: -26vw;
  width: 78vw;
  height: 78vw;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, rgba(255, 107, 74, 0.58), rgba(255, 107, 74, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -18%;
  bottom: -52%;
  width: 70%;
  height: 110%;
  background: var(--navy-deep);
  transform: rotate(-9deg);
  opacity: 0.55;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumbs__link,
.page-faq .faq-hero .breadcrumbs__item {
  color: rgba(247, 244, 239, 0.72);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-hero .breadcrumbs__item[aria-current="page"] {
  color: var(--coral);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 36px;
  margin-top: 36px;
}

.page-faq .faq-hero__eyebrow {
  color: var(--gold);
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(2rem, 7.4vw, 4.2rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 20ch;
}

.page-faq .faq-hero__text {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(247, 244, 239, 0.84);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-hero__index {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: rgba(7, 27, 49, 0.55);
  padding: 22px 22px 24px;
}

.page-faq .faq-hero__index-title {
  margin: 0 0 14px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(247, 244, 239, 0.6);
}

.page-faq .faq-hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-hero__index-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 6px 8px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 0.9375rem;
  color: var(--pearl);
  transition: background-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-hero__index-list a:hover,
.page-faq .faq-hero__index-list a:focus-visible {
  background: rgba(255, 107, 74, 0.16);
  color: #fff;
}

.page-faq .faq-hero__index-list .mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  font-size: 0.6875rem;
  color: var(--gold);
}

.page-faq .faq-hero__index-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(247, 244, 239, 0.62);
}

.page-faq .faq-hero__band {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  z-index: 2;
  background: linear-gradient(90deg, var(--gold), var(--coral) 55%, rgba(255, 107, 74, 0) 100%);
}

/* ---------- 高频速览 ---------- */

.page-faq .brief-list {
  border-top: 1px solid var(--faq-line);
}

.page-faq .brief {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .brief__row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 12px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.16s var(--ease);
}

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

.page-faq .brief__row:hover {
  background: var(--faq-soft);
}

.page-faq .brief__no {
  flex: 0 0 auto;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .brief__q {
  flex: 1 1 auto;
  font-size: 0.9375rem;
  line-height: 1.5;
  font-weight: 600;
}

.page-faq .brief .tag {
  flex: 0 0 auto;
}

.page-faq .brief__answer {
  padding: 4px 4px 20px 40px;
  animation: faq-drop 0.24s var(--ease);
}

.page-faq .brief__answer p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate);
  max-width: 62ch;
}

.page-faq .brief__answer a {
  color: var(--coral-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 三步排查 ---------- */

.page-faq .faq-steps__figure {
  margin: 0 0 40px;
  border: 1px solid var(--faq-line);
  background: var(--pearl);
}

.page-faq .faq-steps__figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
  position: relative;
  counter-reset: faqstep;
}

.page-faq .step {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--pearl);
}

.page-faq .step__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--navy);
  color: var(--pearl);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.page-faq .step__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .step__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .step__check {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .step__check-label {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--navy-mid);
  color: var(--pearl);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
}

/* ---------- 入口专区 ---------- */

.page-faq .faq-entry__grid {
  display: grid;
  gap: 36px;
}

.page-faq .faq-entry__figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  background: var(--paper);
}

.page-faq .faq-entry__figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 问答条目 ---------- */

.page-faq .qa-stack {
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line);
  transition: background-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .qa[open] {
  background: var(--faq-answer-bg);
  box-shadow: inset 0 0 0 1px rgba(201, 162, 75, 0.5);
}

.page-faq .qa__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 56px;
  padding: 16px 8px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary:hover {
  background: rgba(255, 107, 74, 0.05);
}

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

.page-faq .qa__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.6;
}

.page-faq .qa__summary .tag {
  flex: 0 0 auto;
  margin-top: 1px;
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  margin-left: auto;
  border: 1px solid var(--gold);
  border-radius: 50%;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--gold);
  transition: transform 0.18s var(--ease);
}

.page-faq .qa__mark::before {
  left: 50%;
  top: 4px;
  bottom: 4px;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .qa__mark::after {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .qa[open] .qa__mark::before {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .qa__answer {
  padding: 0 8px 22px 8px;
  animation: faq-drop 0.24s var(--ease);
}

.page-faq .qa__answer p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .qa__answer a {
  color: var(--coral-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分类布局 ---------- */

.page-faq .faq-layout {
  display: grid;
  gap: 40px;
}

.page-faq .faq-aside__title {
  margin: 0 0 12px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-aside__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-aside__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 14px;
  white-space: nowrap;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.875rem;
  color: var(--navy);
  background: var(--pearl);
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-aside__link:hover,
.page-faq .faq-aside__link:focus-visible {
  border-color: var(--coral);
  color: var(--coral-deep);
}

.page-faq .faq-aside__link .mono {
  font-size: 0.75rem;
  color: var(--gold);
}

.page-faq .faq-aside__panel {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--pearl);
}

.page-faq .faq-aside__panel-title {
  margin: 0 0 8px;
  font-size: 0.9375rem;
  font-weight: 600;
}

.page-faq .faq-aside__panel-text {
  margin: 0 0 16px;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(247, 244, 239, 0.78);
}

.page-faq .btn--block {
  display: flex;
  width: 100%;
  justify-content: center;
}

.page-faq .qa-group {
  scroll-margin-top: 96px;
  margin-bottom: 44px;
}

.page-faq .qa-group:last-child {
  margin-bottom: 0;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 600;
}

.page-faq .qa-group__code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 10px;
  background: var(--navy-mid);
  color: var(--pearl);
  font-size: 0.8125rem;
}

/* ---------- 人工支持 ---------- */

.page-faq .faq-human__grid {
  display: grid;
  gap: 40px;
}

.page-faq .faq-human__eyebrow {
  color: var(--gold);
}

.page-faq .faq-human__title {
  color: var(--pearl);
  margin: 0;
}

.page-faq .faq-human__text {
  margin: 18px 0 0;
  max-width: 50ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(247, 244, 239, 0.8);
}

.page-faq .faq-human__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-human__list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-human__list-no {
  flex: 0 0 auto;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--coral);
  padding-top: 3px;
}

.page-faq .faq-human__list p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(247, 244, 239, 0.88);
}

.page-faq .faq-human__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-faq .faq-human__aside {
  align-self: start;
  padding: 26px 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: rgba(7, 27, 49, 0.6);
}

.page-faq .faq-human__aside-title {
  margin: 0 0 18px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-human__meta {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-human__meta dt {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(247, 244, 239, 0.58);
  margin-bottom: 4px;
}

.page-faq .faq-human__meta dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--pearl);
  word-break: break-word;
}

.page-faq .faq-human__aside-note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line);
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(247, 244, 239, 0.72);
}

/* ---------- 维护说明 ---------- */

.page-faq .upkeep-grid {
  display: grid;
  gap: 24px;
}

.page-faq .upkeep-card {
  position: relative;
  padding: 26px 22px 24px;
}

.page-faq .upkeep-card__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 600;
}

.page-faq .upkeep-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .upkeep-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .upkeep-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--coral);
}

.page-faq .upkeep-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .upkeep-card__text a {
  color: var(--coral-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .upkeep-card__meta {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-faq .upkeep-card--note {
  background: var(--paper);
}

/* ---------- 动效 ---------- */

@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 76px 0 96px;
  }

  .page-faq .upkeep-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .upkeep-card--note {
    grid-column: 1 / -1;
  }

  .page-faq .qa__summary {
    padding: 18px 14px;
  }

  .page-faq .qa__answer {
    padding: 0 14px 26px 60px;
  }

  .page-faq .brief__answer {
    padding-left: 52px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: 56px;
  }

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

  .page-faq .steps::before {
    content: "";
    position: absolute;
    top: 48px;
    left: 12%;
    right: 12%;
    height: 1px;
    background: linear-gradient(90deg, rgba(201, 162, 75, 0) 0%, var(--gold) 14%, var(--gold) 86%, rgba(201, 162, 75, 0) 100%);
    z-index: 0;
  }

  .page-faq .step {
    z-index: 1;
  }

  .page-faq .faq-entry__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .faq-human__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-aside__list {
    display: grid;
    gap: 4px;
    overflow: visible;
    margin-bottom: 28px;
    padding: 0;
  }

  .page-faq .faq-aside__link {
    justify-content: flex-start;
    width: 100%;
    border-radius: 10px;
  }

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

  .page-faq .upkeep-card--note {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__answer,
  .page-faq .brief__answer {
    animation: none;
  }

  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-aside__link,
  .page-faq .brief__row,
  .page-faq .qa,
  .page-faq .qa__summary,
  .page-faq .faq-hero__index-list a {
    transition: none;
  }
}