.page-faq {
  --faq-rail: 232px;
  --faq-gap: clamp(1.5rem, 3.5vw, 3rem);
  background: var(--void);
  color: var(--ink);
  overflow-x: clip;
}

.page-faq .cmd-breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  font-size: .8125rem;
  color: var(--stone);
}

.page-faq .cmd-breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .cmd-breadcrumb a:hover,
.page-faq .cmd-breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-faq .cmd-breadcrumb li + li::before {
  content: "/";
  margin-right: .45rem;
  opacity: .55;
}

.page-faq .cmd-breadcrumb li[aria-current="page"] {
  color: var(--ink-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(.9rem, 2.5vw, 1.5rem) 0 clamp(2.25rem, 5vw, 3.75rem);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(36, 245, 210, .13), transparent 62%),
    linear-gradient(180deg, var(--void-deep) 0%, var(--void) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -46%;
  width: 62%;
  height: 82%;
  background: linear-gradient(120deg, rgba(22, 224, 163, .16), rgba(77, 141, 255, .08) 55%, transparent 78%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-hero__lead .cmd-h1 {
  margin-top: .6rem;
  max-width: 16em;
}

.page-faq .faq-hero__lead .cmd-lead {
  margin-top: 1.1rem;
  max-width: 34em;
  color: var(--ink-soft);
}

.page-faq .faq-meta {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.25rem;
}

.page-faq .faq-meta li {
  display: grid;
  gap: .3rem;
  padding-left: .9rem;
  border-left: 2px solid rgba(36, 245, 210, .5);
}

.page-faq .faq-meta__v {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 900;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.02em;
}

.page-faq .faq-meta__k {
  font-size: .8125rem;
  line-height: 1.45;
  color: var(--stone);
}

/* 四步面板 */
.page-faq .faq-steps {
  position: relative;
  display: grid;
  gap: 1rem;
  padding: clamp(1.15rem, 3vw, 1.85rem);
  background: linear-gradient(165deg, var(--panel-hi), var(--panel) 70%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-faq .faq-steps__label {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--track);
  font-weight: 700;
}

.page-faq .faq-flow {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-flow__rail line {
  stroke: rgba(36, 245, 210, .45);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
}

.page-faq .faq-flow__node circle {
  fill: rgba(36, 245, 210, .06);
  stroke: var(--cyan);
  stroke-width: 1.5;
}

.page-faq .faq-flow__n {
  fill: var(--cyan);
  font-family: var(--font-num);
  font-size: 17px;
  font-weight: 900;
}

.page-faq .faq-flow__t {
  fill: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: .05em;
}

.page-faq .faq-steps__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-steps .cmd-btn {
  justify-self: start;
}

/* ---------- 热门速查 ---------- */
.page-faq .faq-hot {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.25rem, 3vw, 2rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hot__item {
  position: relative;
  display: grid;
  gap: .5rem;
  align-content: start;
  padding: 1.25rem 1.15rem 1.35rem;
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: background .25s var(--ease);
}

.page-faq .faq-hot__item:hover,
.page-faq .faq-hot__item:focus-visible {
  background: var(--panel-hi);
}

.page-faq .faq-hot__no {
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(36, 245, 210, .55);
  letter-spacing: -.02em;
}

.page-faq .faq-hot__q {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .faq-hot__a {
  font-size: .875rem;
  line-height: 1.65;
  color: var(--stone);
}

.page-faq .faq-hot__go {
  position: absolute;
  right: 1.1rem;
  bottom: 1rem;
  color: var(--cyan);
  font-size: .9rem;
  transition: transform .25s var(--ease);
}

.page-faq .faq-hot__item:hover .faq-hot__go {
  transform: translateX(3px);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-library {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail__nav {
  display: flex;
  flex-direction: row;
  gap: .5rem;
  margin-top: .85rem;
  overflow-x: auto;
  padding-bottom: .6rem;
  scrollbar-width: thin;
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: auto auto;
  gap: .45rem;
  align-items: baseline;
  flex: 0 0 auto;
  padding: .5rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: .875rem;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-rail__link span {
  font-family: var(--font-num);
  font-size: .6875rem;
  font-weight: 800;
  color: var(--stone);
  letter-spacing: .04em;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cyan);
  border-color: rgba(36, 245, 210, .5);
  background: rgba(36, 245, 210, .05);
}

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

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.page-faq .faq-group__head {
  display: grid;
  gap: .5rem;
  padding-bottom: 1rem;
  margin-bottom: .35rem;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .faq-group__no {
  font-family: var(--font-num);
  font-size: .8125rem;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-group__head .cmd-h2 {
  margin: 0;
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 60ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--stone);
}

/* 图片 */
.page-faq .faq-shot {
  margin: 1.35rem 0 1.5rem;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-shot figcaption {
  padding: .7rem .9rem;
  font-size: .8125rem;
  line-height: 1.55;
  color: var(--stone);
  border-top: 1px solid var(--line);
}

.page-faq .faq-shot--tall {
  max-width: 19rem;
  margin-inline: auto;
}

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

.page-faq .faq-q > summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 1.35rem;
  gap: .55rem;
  align-items: start;
  min-height: 44px;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
  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 .faq-q__title,
.page-faq .faq-q > summary:focus-visible .faq-q__title {
  color: var(--cyan);
}

.page-faq .faq-q > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-q__no {
  font-family: var(--font-num);
  font-size: .8125rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--cyan);
  padding-top: .25rem;
}

.page-faq .faq-q__title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-faq .faq-q__sign {
  position: relative;
  width: 1.35rem;
  height: 1.35rem;
  margin-top: .15rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  background: var(--stone);
  transition: opacity .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-q__sign::before {
  top: 50%;
  left: 30%;
  right: 30%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-q__sign::after {
  left: 50%;
  top: 30%;
  bottom: 30%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .faq-q[open] .faq-q__sign {
  border-color: var(--cyan);
  background: rgba(36, 245, 210, .14);
}

.page-faq .faq-q[open] .faq-q__sign::before {
  background: var(--cyan);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 0 0 1.35rem 2.95rem;
}

.page-faq .faq-q__body p {
  margin: 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-q__more {
  display: inline-block;
  margin-top: .7rem;
  font-size: .8125rem;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 163, .4);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-q__more:hover,
.page-faq .faq-q__more:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-resolve {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding: clamp(1.4rem, 4vw, 2.75rem);
  background: linear-gradient(160deg, var(--panel-hi), var(--panel) 62%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--mint);
  scroll-margin-top: 96px;
}

.page-faq .faq-resolve__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-faq .faq-resolve__text .cmd-h2 {
  margin: .55rem 0 0;
}

.page-faq .faq-resolve__text .cmd-lead {
  margin-top: .9rem;
  color: var(--ink-soft);
}

.page-faq .faq-resolve__text .cmd-btn {
  margin-top: 1.4rem;
}

.page-faq .faq-resolve__contact {
  margin: 1.15rem 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--stone);
  word-break: break-word;
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 1.6rem;
  font-size: .9375rem;
  line-height: 1.65;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--line);
  padding-bottom: .85rem;
}

.page-faq .faq-checklist li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: .25rem;
  top: .62em;
  width: .45rem;
  height: .45rem;
  background: var(--mint);
  transform: rotate(45deg);
}

.page-faq .faq-tail {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .faq-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 245, 210, .35);
}

.page-faq .faq-tail a:hover,
.page-faq .faq-tail a:focus-visible {
  border-color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hot {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-shot--tall {
    max-width: 21rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .page-faq .faq-library {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.75rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    gap: .1rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    grid-template-columns: 2.1ch minmax(0, 1fr);
    gap: .6rem;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    padding: .78rem .15rem;
    white-space: normal;
    background: none;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    background: none;
    padding-left: .5rem;
  }

  .page-faq .faq-rail__card {
    display: block;
    margin-top: 1.35rem;
    padding: .95rem 1rem;
    background: rgba(36, 245, 210, .05);
    border-left: 2px solid var(--cyan);
  }

  .page-faq .faq-rail__card p {
    margin: 0;
    font-size: .8125rem;
    line-height: 1.7;
    color: var(--stone);
  }

  .page-faq .faq-rail__cta {
    display: inline-block;
    margin-top: .6rem;
    font-size: .8125rem;
    color: var(--mint);
    text-decoration: none;
    border-bottom: 1px solid rgba(22, 224, 163, .4);
  }

  .page-faq .faq-rail__cta:hover,
  .page-faq .faq-rail__cta:focus-visible {
    color: var(--cyan);
  }

  .page-faq .faq-resolve__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-faq .faq-shot--tall {
    max-width: 18rem;
    margin-inline: 0 auto;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-hot {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-q > summary {
    grid-template-columns: 2.8rem minmax(0, 1fr) 1.35rem;
    align-items: center;
  }

  .page-faq .faq-q__no {
    padding-top: 0;
  }

  .page-faq .faq-q__sign {
    margin-top: 0;
  }

  .page-faq .faq-q__body {
    padding-left: 3.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot__item,
  .page-faq .faq-hot__go,
  .page-faq .faq-rail__link,
  .page-faq .faq-q__title,
  .page-faq .faq-q__sign {
    transition: none;
  }

  .page-faq .faq-hot__item:hover .faq-hot__go {
    transform: none;
  }
}