.page-faq {
  --faq-panel-line: #223E60;
  background: var(--ink);
  color: var(--ice);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}
.page-faq .faq-crumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-faq .faq-crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-faq .faq-crumbs [aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--line);
  padding: clamp(22px, 4vw, 40px) 0 clamp(26px, 4vw, 44px);
  background-image:
    radial-gradient(circle at 92% 4%, rgba(37, 225, 210, .18), transparent 44%),
    radial-gradient(circle at 3% 92%, rgba(124, 92, 255, .15), transparent 46%),
    linear-gradient(180deg, var(--ink-deep), var(--ink));
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(29, 55, 87, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29, 55, 87, .55) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .55;
}
.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__lead .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 12px;
}
.page-faq .faq-hero__lead h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 44px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--ice);
}
.page-faq .faq-hero__lead .lede {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 14px;
}
.page-faq .faq-hero__more {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-faq .faq-hero__more:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero__panel {
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--panel);
  padding: clamp(16px, 2.4vw, 22px);
}
.page-faq .faq-hero__panel-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold);
}
.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 14px;
}
.page-faq .faq-hero__stats li {
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
}
.page-faq .faq-hero__stats li:nth-child(2) {
  border-left-color: var(--violet);
}
.page-faq .faq-hero__stats li:nth-child(3) {
  border-left-color: var(--coral);
}
.page-faq .faq-hero__stats li:nth-child(4) {
  border-left-color: var(--gold);
}
.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ice);
}
.page-faq .faq-stat__label {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 顶部筛选条 ---------- */
.page-faq .faq-filter {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  border-bottom: 2px solid var(--line);
  background: rgba(8, 20, 38, .96);
  backdrop-filter: blur(10px);
}
.page-faq .faq-filter__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.page-faq .faq-filter__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-faq .faq-filter__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .filter-btn {
  appearance: none;
  border: 2px solid var(--line);
  background: var(--panel);
  color: var(--ice);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  padding: 7px 13px;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-faq .filter-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.page-faq .filter-btn:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}
.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-deep);
  font-weight: 700;
}
.page-faq .faq-filter__status {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
}

/* ---------- 主体：左侧刻度 + 右侧问答 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  padding-top: clamp(26px, 4vw, 46px);
}
.page-faq .faq-rail {
  min-width: 0;
}
.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 9px 12px;
  border: 2px solid var(--line);
  border-left: 4px solid var(--line);
  background: var(--panel);
  color: var(--mist);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-faq .faq-rail__link:hover {
  color: var(--ice);
  border-color: var(--cyan);
  background: rgba(37, 225, 210, .08);
}
.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}
.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 0 5px;
}

.page-faq .faq-list {
  display: grid;
  gap: clamp(30px, 4.4vw, 54px);
  min-width: 0;
}
.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 96px);
}
.page-faq .faq-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
}
.page-faq .faq-block__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  padding: 1px 9px;
  border: 2px solid var(--gold);
  color: var(--gold);
}
.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 29px);
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--ice);
}
.page-faq .faq-block__note {
  flex-basis: 100%;
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}
.page-faq .faq-block__figure {
  margin: 0 0 20px;
  max-width: 460px;
}
.page-faq .faq-block__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-accordion {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 13px;
  align-items: start;
}
.page-faq .faq-item {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--faq-panel-line);
  box-shadow: var(--shadow-soft);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-faq .faq-item:hover {
  border-color: #2C4F7A;
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--cyan);
  transition: width var(--dur) var(--ease);
}
.page-faq .faq-item[open] {
  border-color: var(--cyan);
  background: #112540;
}
.page-faq .faq-item[open]::before {
  width: 4px;
}
.page-faq .faq-item__trigger {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 14px 42px 14px 16px;
  position: relative;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
}
.page-faq .faq-item__trigger::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__trigger:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: -4px;
}
.page-faq .faq-item__num {
  flex: none;
  min-width: 22px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}
.page-faq .faq-item__q {
  min-width: 0;
}
.page-faq .faq-item__mark {
  position: absolute;
  right: 16px;
  top: 18px;
  width: 14px;
  height: 14px;
}
.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}
.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}
.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-faq .faq-item__panel {
  padding: 0 18px 16px 48px;
  border-top: 1px dashed rgba(37, 225, 210, .35);
}
.page-faq .faq-item__panel p {
  margin: 13px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C4D3E4;
}

/* ---------- 浅底人工支持带 ---------- */
.page-faq .faq-escalate {
  margin-top: clamp(42px, 6.5vw, 82px);
  padding: clamp(30px, 5vw, 54px) 0;
  background: var(--paper);
  color: var(--paper-ink);
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}
.page-faq .faq-escalate__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 44px);
  align-items: start;
}
.page-faq .faq-escalate__lead .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #5B6E85;
}
.page-faq .faq-escalate__lead .section-title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--paper-ink);
}
.page-faq .faq-escalate__lead p {
  margin: 0 0 20px;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #33465C;
}
.page-faq .faq-escalate__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .faq-escalate__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 2px solid #C9D6E4;
  border-left: 4px solid var(--coral);
  background: #FFFFFF;
  font-size: 14.5px;
  line-height: 1.75;
  color: #22374E;
}
.page-faq .faq-escalate__list li:nth-child(2) {
  border-left-color: var(--cyan);
}
.page-faq .faq-escalate__list li:nth-child(3) {
  border-left-color: var(--violet);
}
.page-faq .faq-escalate__list li:nth-child(4) {
  border-left-color: var(--gold);
}
.page-faq .faq-escalate__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: #7B8DA3;
  padding-top: 2px;
}
.page-faq .faq-escalate__list a {
  color: #0B4A63;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}
.page-faq .faq-escalate__list a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-accordion {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .page-faq .faq-block__figure--right {
    margin-left: auto;
  }
  .page-faq .faq-escalate__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }
}

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

/* ---------- 桌面端：左侧刻度 + 右侧问答 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 96px);
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 2px;
    padding-bottom: 0;
  }
  .page-faq .faq-rail__link {
    flex: none;
    width: 100%;
    border: 0;
    border-left: 4px solid var(--line);
    border-bottom: 1px solid rgba(29, 55, 87, .7);
    background: transparent;
    white-space: normal;
  }
  .page-faq .faq-rail__text {
    flex: 1;
  }
  .page-faq .faq-rail__count {
    margin-left: auto;
  }
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 639px) {
  .page-faq .faq-filter__status {
    margin-left: 0;
    flex-basis: 100%;
  }
  .page-faq .faq-item__panel {
    padding: 0 14px 15px 16px;
  }
  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}