.page-faq {
  --faq-rule: 1px solid var(--line-soft);
  --faq-body-text: rgba(234, 246, 255, .78);
  --faq-body-strong: rgba(234, 246, 255, .86);
  background: var(--deep-sea);
  color: var(--glass-white);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding-top: clamp(1.4rem, 4vw, 2.25rem);
  padding-bottom: .25rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--cool-grey);
}
.page-faq .breadcrumbs a {
  color: var(--cool-grey);
  text-decoration: none;
  transition: color .2s ease;
}
.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan);
  outline: none;
}
.page-faq .breadcrumbs__sep {
  margin: 0 .5em;
  opacity: .55;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.75rem, 5vw, 3.5rem) 0 clamp(1.5rem, 4vw, 2.5rem);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 160%;
  background:
    radial-gradient(circle at 84% 8%, rgba(41, 242, 210, .15), transparent 52%),
    radial-gradient(circle at 6% 88%, rgba(123, 97, 255, .13), transparent 58%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .45;
}
.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(.85rem, 2vw, 1.3rem);
  max-width: 60rem;
}
.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.95rem, 6.8vw, 4.1rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--glass-white);
}
.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: clamp(3rem, 9vw, 7rem);
  height: 3px;
  margin-top: clamp(.85rem, 2vw, 1.35rem);
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
}
.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 48rem;
  font-size: clamp(.94rem, 1.55vw, 1.0625rem);
  line-height: 1.82;
  color: var(--faq-body-text);
}
.page-faq .faq-hero__meta {
  list-style: none;
  margin: .3rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .45rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--cool-grey);
}
.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
}
.page-faq .faq-hero__meta .mono {
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: .02em;
}

/* ---------- 章节索引 ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 0;
}
.page-faq .faq-index .container {
  padding-left: 0;
  padding-right: 0;
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 clamp(1.15rem, 4vw, 3rem);
  display: flex;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .faq-index__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: 1rem 1.1rem;
  font-family: var(--font-display);
  font-size: .875rem;
  white-space: nowrap;
  text-decoration: none;
  color: var(--cool-grey);
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.page-faq .faq-index__list > li + li .faq-index__item {
  border-left: 1px solid var(--line-soft);
}
.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  color: var(--glass-white);
  border-bottom-color: var(--cyan);
  background: var(--glass);
  outline: none;
}
.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ---------- 步骤章节 ---------- */
.page-faq .faq-steps {
  padding: clamp(2.25rem, 6vw, 4.25rem) 0 clamp(1rem, 3vw, 2rem);
}
.page-faq .faq-step {
  display: grid;
  gap: .85rem;
  padding: clamp(1.6rem, 4vw, 2.9rem) 0;
  border-top: var(--faq-rule);
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}
.page-faq .faq-step:first-of-type {
  border-top: none;
  padding-top: 0;
}
.page-faq .faq-step__rail {
  display: flex;
  align-items: center;
  gap: .85rem;
}
.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--cyan);
  opacity: .9;
}
.page-faq .faq-step__line {
  display: none;
}
.page-faq .faq-step__body {
  max-width: 52rem;
}
.page-faq .faq-step__title {
  margin: 0 0 .8rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.22rem, 2.4vw, 1.7rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--glass-white);
}
.page-faq .faq-step__body > p {
  margin: 0 0 .95rem;
  font-size: .9625rem;
  line-height: 1.85;
  color: var(--faq-body-text);
}
.page-faq .faq-step__body > p:last-of-type {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-step {
    grid-template-columns: 138px minmax(0, 1fr);
    gap: clamp(1.5rem, 4vw, 3.25rem);
  }
  .page-faq .faq-step__rail {
    flex-direction: column;
    align-items: flex-start;
    align-self: stretch;
    gap: .9rem;
  }
  .page-faq .faq-step__line {
    display: block;
    flex: 1 1 auto;
    width: 1px;
    min-height: 2.5rem;
    background: linear-gradient(180deg, rgba(41, 242, 210, .55), rgba(41, 242, 210, 0));
  }
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 1.5rem 0;
  display: grid;
  gap: .7rem;
}
.page-faq .faq-figure .media-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(3, 11, 22, .6);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  padding-left: .9rem;
  border-left: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--cool-grey);
}

/* ---------- 要点列表 ---------- */
.page-faq .faq-points {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}
.page-faq .faq-points li {
  position: relative;
  padding: .78rem .95rem .78rem 2.15rem;
  border-left: 2px solid var(--line);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--glass);
  font-size: .9125rem;
  line-height: 1.72;
  color: var(--faq-body-strong);
}
.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: .95rem;
  top: 1.24rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(41, 242, 210, .12);
}
.page-faq .faq-points strong {
  color: var(--glass-white);
  font-weight: 600;
}

/* ---------- 提示条 ---------- */
.page-faq .faq-note {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  border: 1px solid rgba(255, 138, 61, .28);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(255, 138, 61, .13), rgba(255, 138, 61, .03));
}
.page-faq .faq-note p {
  margin: 0;
  font-size: .9125rem;
  line-height: 1.78;
  color: var(--faq-body-strong);
}

/* ---------- 表格 ---------- */
.page-faq .faq-table-wrap {
  margin: 1.2rem 0;
}
.page-faq .data-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: .8875rem;
}
.page-faq .data-table th,
.page-faq .data-table td {
  padding: .75rem .85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .data-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--cyan);
  border-bottom-color: var(--line);
}
.page-faq .data-table tbody th {
  font-weight: 600;
  white-space: nowrap;
  color: var(--glass-white);
}
.page-faq .data-table tbody td {
  color: var(--faq-body-text);
}
.page-faq .data-table tbody tr:hover {
  background: var(--glass);
}

/* ---------- 折叠块 ---------- */
.page-faq .faq-fold {
  margin-top: .7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--glass);
  overflow: hidden;
}
.page-faq .faq-fold > summary {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  color: var(--glass-white);
}
.page-faq .faq-fold > summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-fold > summary::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(41, 242, 210, .14);
}
.page-faq .faq-fold > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--cyan);
  transition: transform .22s ease;
}
.page-faq .faq-fold[open] > summary {
  border-bottom: 1px solid var(--line-soft);
}
.page-faq .faq-fold[open] > summary::after {
  transform: rotate(45deg);
}
.page-faq .faq-fold__body {
  padding: 1rem 1.1rem 1.1rem;
  background: rgba(3, 11, 22, .5);
}
.page-faq .faq-fold__body p {
  margin: 0 0 .65rem;
  font-size: .9125rem;
  line-height: 1.78;
  color: var(--faq-body-text);
}
.page-faq .faq-fold__body p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-fold__body .mono {
  font-family: var(--font-mono);
  font-size: .875rem;
  color: var(--glass-white);
  letter-spacing: .01em;
}

/* ---------- 行内链接 ---------- */
.page-faq .faq-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 242, 210, .35);
  transition: color .2s ease, border-color .2s ease;
}
.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
  outline: none;
}
.page-faq .faq-tail {
  margin: 1.35rem 0 0;
  font-size: .9125rem;
  line-height: 1.75;
  color: var(--cool-grey);
}

/* ---------- 场景路径（标签页） ---------- */
.page-faq .faq-paths {
  padding: clamp(2.25rem, 6vw, 4rem) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}
.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: clamp(1.15rem, 3vw, 1.85rem);
  padding: 0;
  border: 0;
  background: none;
}
.page-faq .faq-tab {
  flex: 0 1 auto;
  padding: .7rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  color: var(--cool-grey);
  font-family: var(--font-display);
  font-size: .875rem;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.page-faq .faq-tab:hover {
  color: var(--glass-white);
  border-color: rgba(41, 242, 210, .45);
}
.page-faq .faq-tab[aria-selected="true"] {
  color: var(--night);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.page-faq .faq-panel {
  flex: 1 1 100%;
  margin-top: .9rem;
  padding: clamp(1.15rem, 3vw, 1.85rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(3, 11, 22, .55);
}
.page-faq .faq-panel[hidden] {
  display: none;
}
.page-faq .faq-panel h3 {
  margin: 0 0 .55rem;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--glass-white);
}
.page-faq .faq-panel > p {
  margin: 0 0 .2rem;
  font-size: .925rem;
  line-height: 1.8;
  color: var(--faq-body-text);
}
.page-faq .faq-panel .faq-points {
  margin-top: .95rem;
}
.page-faq .faq-panel .faq-points li {
  background: var(--glass-strong);
}

/* ---------- 结尾行动区 ---------- */
.page-faq .faq-cta {
  padding: clamp(2.25rem, 6vw, 4.25rem) 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-cta__inner {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}
.page-faq .faq-cta__inner > div {
  min-width: 0;
}
.page-faq .faq-cta__inner .lede {
  margin: 0;
  max-width: 42rem;
  font-size: .9625rem;
  line-height: 1.8;
  color: var(--faq-body-text);
}
.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

@media (min-width: 820px) {
  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2.75rem;
  }
  .page-faq .faq-cta__actions {
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-tab,
  .page-faq .faq-fold > summary::after,
  .page-faq .faq-link {
    transition: none;
  }
}