.page-faq {
  --faq-toc-w: 236px;
  --faq-indent: 40px;
}

/* ---------- 首屏 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(16px, 2.5vw, 28px);
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(18px, 3vw, 36px) 0 clamp(26px, 4vw, 48px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -120px -10% -30px -10%;
  background:
    radial-gradient(52% 66% at 84% 2%, rgba(255, 107, 44, .18), transparent 68%),
    radial-gradient(46% 58% at 4% 24%, rgba(45, 226, 230, .12), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-hero__copy h1 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(31px, 5.4vw, 56px);
  line-height: 1.05;
  letter-spacing: .004em;
  color: var(--c-mist);
  margin: 10px 0 16px;
  max-width: 17ch;
}

.page-faq .faq-hero__copy .lede {
  max-width: 58ch;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
}

.page-faq .faq-hero__stats li {
  display: grid;
  gap: 5px;
  align-content: start;
}

.page-faq .faq-hero__stats .stat__value {
  font-family: var(--f-mono);
  font-size: clamp(21px, 2.8vw, 27px);
  line-height: 1;
  color: var(--c-amber);
  letter-spacing: -.01em;
}

.page-faq .faq-hero__stats li:nth-child(3) .stat__value {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--c-cyan);
}

.page-faq .faq-hero__stats em {
  font-style: normal;
  font-size: .52em;
  margin-left: 2px;
  color: var(--fg-soft);
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 13px;
  line-height: 1.45;
  color: var(--fg-faint);
}

/* 图片容器 */
.page-faq .faq-shot {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--c-rock);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-shot::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-cyan) 66%, transparent);
  pointer-events: none;
}

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

.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding-bottom: clamp(40px, 6vw, 78px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-toc {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 16px 14px;
  background: linear-gradient(180deg, rgba(18, 42, 74, .6), rgba(11, 27, 51, .32));
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-steel);
}

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

.page-faq .faq-toc__list a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  border-radius: 3px;
  color: var(--fg-soft);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.45;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-toc__list a .mono {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-steel);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--c-mist);
  background: rgba(45, 226, 230, .07);
  border-left-color: var(--c-cyan);
  outline: none;
}

.page-faq .faq-toc__list a:hover .mono,
.page-faq .faq-toc__list a:focus-visible .mono {
  color: var(--c-cyan);
}

.page-faq .faq-toc__foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
}

.page-faq .faq-toc__foot p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--fg-faint);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  margin-top: clamp(36px, 5.5vw, 62px);
  padding-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 84px;
}

.page-faq .faq-block:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-block__head {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-block__head .eyebrow {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-cyan);
  margin: 0 0 8px;
}

.page-faq .faq-block__head h2 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(24px, 3.1vw, 34px);
  line-height: 1.1;
  color: var(--c-mist);
  margin: 0 0 8px;
}

.page-faq .faq-block__head p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--fg-faint);
}

/* ---------- 刷新节奏条 ---------- */
.page-faq .faq-pulse {
  list-style: none;
  margin: 0 0 clamp(18px, 2.5vw, 26px);
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-pulse li {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 14px 15px 16px 17px;
  background: linear-gradient(180deg, rgba(18, 42, 74, .88), rgba(11, 27, 51, .9));
}

.page-faq .faq-pulse li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-orange), rgba(255, 107, 44, 0));
  opacity: .65;
}

.page-faq .faq-pulse__stamp {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-faq .faq-pulse strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-mist);
}

.page-faq .faq-pulse__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--fg-faint);
}

/* ---------- 手风琴 ---------- */
.page-faq .accordion {
  border-top: 1px solid var(--line);
}

.page-faq .accordion__item {
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .accordion__item[data-open] {
  border-left-color: var(--c-orange);
  background: linear-gradient(90deg, rgba(255, 107, 44, .09), transparent 58%);
}

.page-faq .accordion__trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 20px;
  gap: 8px;
  align-items: start;
  padding: 15px 10px 15px 8px;
  background: none;
  border: 0;
  color: inherit;
  font-family: var(--f-body);
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.page-faq .accordion__trigger:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
  border-radius: 2px;
}

.page-faq .faq-qno {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-steel);
  padding-top: 5px;
  transition: color var(--dur) var(--ease);
}

.page-faq .accordion__item[data-open] .faq-qno {
  color: var(--c-orange);
}

.page-faq .faq-qtext {
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-qicon {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  flex: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-qicon::before,
.page-faq .faq-qicon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 1.5px;
  background: var(--c-cyan);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-qicon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .accordion__item[data-open] .faq-qicon {
  transform: rotate(180deg);
  border-color: rgba(255, 107, 44, .55);
  background: rgba(255, 107, 44, .14);
}

.page-faq .accordion__item[data-open] .faq-qicon::before {
  background: var(--c-orange);
}

.page-faq .accordion__item[data-open] .faq-qicon::after {
  transform: translate(-50%, -50%) rotate(0deg);
  background: var(--c-orange);
  opacity: 0;
}

@media (hover: hover) {
  .page-faq .accordion__trigger:hover .faq-qtext {
    color: var(--c-glow);
  }
  .page-faq .accordion__trigger:hover .faq-qicon {
    border-color: rgba(168, 240, 242, .5);
  }
}

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

.page-faq .accordion__item[data-open] .accordion__panel {
  display: block;
  animation: faq-panel-in 220ms var(--ease);
}

@keyframes faq-panel-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .accordion__panel > div {
  padding: 0 8px 20px 36px;
  max-width: 74ch;
}

.page-faq .accordion__panel p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fg-soft);
}

.page-faq .accordion__panel p:last-child {
  margin-bottom: 0;
}

.page-faq .accordion__panel .link {
  color: var(--c-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(45, 226, 230, .4);
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease), text-decoration-color var(--dur) var(--ease);
}

.page-faq .accordion__panel .link:hover {
  color: var(--c-glow);
  text-decoration-color: var(--c-glow);
}

/* ---------- 底部支持区 ---------- */
.page-faq .faq-cta {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(58% 130% at 8% 0%, rgba(255, 107, 44, .13), transparent 62%),
    linear-gradient(180deg, rgba(18, 42, 74, .58), rgba(11, 27, 51, .18));
}

.page-faq .faq-cta__inner {
  padding: clamp(30px, 5vw, 56px) 0;
  display: grid;
  gap: 22px;
}

.page-faq .faq-cta__inner h2 {
  font-family: var(--f-head);
  font-weight: 700;
  font-size: clamp(23px, 3vw, 33px);
  line-height: 1.12;
  color: var(--c-mist);
  margin: 8px 0 10px;
}

.page-faq .faq-cta__inner p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-soft);
}

.page-faq .faq-cta__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-cta__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .accordion__trigger {
    grid-template-columns: 34px minmax(0, 1fr) 20px;
    gap: 10px;
    padding: 16px 12px 16px 12px;
  }

  .page-faq .faq-qtext {
    font-size: 17px;
  }

  .page-faq .accordion__panel > div {
    padding: 0 14px 22px 56px;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-pulse {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 560px) and (max-width: 1023px) {
  .page-faq .faq-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .82fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-block {
    scroll-margin-top: 32px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.45fr) auto;
    align-items: center;
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__item[data-open] .accordion__panel {
    animation: none;
  }

  .page-faq .faq-qicon,
  .page-faq .faq-qicon::before,
  .page-faq .faq-qicon::after {
    transition: none;
  }
}