.page-faq {
  display: block;
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: 1.6rem;
  padding-bottom: .4rem;
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin: 0 .55rem;
  color: var(--grid);
}

.page-faq .faq-crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .faq-crumbs a:hover {
  color: var(--cyan);
}

.page-faq .faq-crumbs [aria-current="page"] {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(1.2rem, 2.6vw, 2rem) 0 clamp(2rem, 4.6vw, 3.4rem);
}

.page-faq .faq-hero__wrap {
  display: grid;
  gap: 1.4rem;
  align-items: stretch;
}

.page-faq .faq-hero__panel {
  display: grid;
  gap: .9rem;
  align-content: start;
  padding: clamp(1.4rem, 3.6vw, 2.6rem);
  background: linear-gradient(155deg, rgba(18, 60, 44, .62), rgba(6, 20, 15, .18));
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-hero__eyebrow .num {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--flare);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-size: clamp(1.95rem, 5.4vw, 3.5rem);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--pitch-800);
  min-height: 220px;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

/* ---------- 搜索与快捷跳转 ---------- */
.page-faq .faq-find {
  display: grid;
  gap: .55rem;
  margin-top: .3rem;
}

.page-faq .faq-find__label {
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-find__box {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .7rem .95rem;
  background: rgba(6, 20, 15, .72);
  border: 1px solid var(--line-soft);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-find__box:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(124, 247, 212, .15);
}

.page-faq .faq-find__icon {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--cyan);
}

.page-faq .faq-find__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: .95rem;
}

.page-faq .faq-find__input::placeholder {
  color: rgba(169, 195, 184, .68);
}

.page-faq .faq-find__hint {
  margin: .35rem 0 0;
  font-size: .78rem;
  color: var(--mist);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump .chip {
  text-decoration: none;
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 1.6rem;
  padding-top: clamp(.8rem, 2vw, 1.4rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}

.page-faq .faq-rail__sticky {
  display: grid;
  gap: 1rem;
}

.page-faq .faq-rail__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-rail__nav ol {
  display: flex;
  gap: .45rem;
  margin: 0;
  padding: 0 0 .35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail__nav a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .85rem;
  border: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: .84rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-rail__nav a:hover {
  color: var(--ink);
  border-color: rgba(124, 247, 212, .45);
}

.page-faq .faq-rail__nav a .num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--mint);
}

.page-faq .faq-rail__foot {
  display: grid;
  gap: .6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-rail__foot p {
  margin: 0;
  font-size: .82rem;
  color: var(--mist);
}

/* ---------- 分类之间的横幅 ---------- */
.page-faq .faq-spot {
  margin: 0 0 2.4rem;
  border: 1px solid var(--line-soft);
  background: var(--pitch-800);
  overflow: hidden;
}

.page-faq .faq-spot img {
  display: block;
  width: 100%;
  height: clamp(140px, 20vw, 220px);
  object-fit: cover;
}

.page-faq .faq-spot__cap {
  padding: .85rem 1rem;
  border-top: 1px solid var(--line-soft);
  background: rgba(6, 20, 15, .55);
  font-size: .8rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 分类与问答 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 108px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 3rem;
  padding-top: 2.4rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group__head {
  display: grid;
  gap: .45rem;
  margin-bottom: 1.1rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: rgba(14, 217, 165, .32);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 54ch;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

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

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

.page-faq .faq-q__summary {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: 1.05rem .15rem;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: .97rem;
  font-weight: 600;
  line-height: 1.65;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-q__summary::marker {
  content: "";
}

.page-faq .faq-q__summary:hover {
  color: var(--cyan);
}

.page-faq .faq-q__idx {
  flex: none;
  padding-top: .32rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  color: var(--mint);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: .3rem;
  color: var(--cyan);
  transition: color .2s var(--ease);
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transition: transform .22s var(--ease);
}

.page-faq .faq-q__sign::before {
  width: 12px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__sign::after {
  width: 1.5px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q[open] .faq-q__sign {
  color: var(--flare);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-q__body {
  padding: 0 .2rem 1.25rem 2.4rem;
  color: var(--mist);
  font-size: .91rem;
  line-height: 1.9;
}

.page-faq .faq-q__body p {
  margin: 0 0 .55rem;
}

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

.page-faq .faq-q__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 247, 212, .35);
}

.page-faq .faq-q__body a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .faq-note {
  display: inline-block;
  margin-top: .35rem;
  padding: .16rem .5rem;
  border: 1px solid rgba(255, 90, 54, .45);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--flare);
}

/* ---------- 底部提示 ---------- */
.page-faq .faq-tail {
  display: grid;
  justify-items: start;
  gap: .85rem;
  margin-top: 3rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border: 1px solid var(--line);
  border-left: 3px solid var(--flare);
  background: linear-gradient(140deg, rgba(18, 60, 44, .62), rgba(6, 20, 15, .22));
}

.page-faq .faq-tail__title {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-tail__text {
  margin: 0;
  max-width: 60ch;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 交互增强 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
}

.page-faq [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity .24s var(--ease), transform .24s var(--ease);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-q__body {
    padding-right: 3rem;
    padding-left: 2.9rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__wrap {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 2.2rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-rail__sticky {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail__nav ol {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-rail__nav a {
    display: flex;
    width: 100%;
    padding: .62rem .8rem;
    border: 0;
    border-left: 2px solid transparent;
    white-space: normal;
  }

  .page-faq .faq-rail__nav a:hover {
    border-left-color: var(--cyan);
    background: rgba(18, 60, 44, .42);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-find__box,
  .page-faq .faq-rail__nav a {
    transition: none;
  }
}