.page-faq {
  --faq-side-w: 250px;
  --faq-answer: rgba(244, 240, 230, 0.78);
  --faq-answer-soft: rgba(244, 240, 230, 0.62);
  background: var(--ink-900);
  color: var(--paper);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

/* ── 面包屑 ── */
.page-faq .faq-crumb {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}

/* ── 封面 ── */
.page-faq .faq-cover {
  position: relative;
  overflow: hidden;
  margin-top: clamp(0.7rem, 2vw, 1.2rem);
  padding: clamp(2.1rem, 6vw, 4.4rem) 0 clamp(1.7rem, 4.5vw, 3rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 125% at 88% 0%, rgba(0, 229, 255, 0.13), transparent 58%),
    radial-gradient(85% 105% at 0% 100%, rgba(255, 212, 0, 0.1), transparent 62%),
    var(--ink-800);
}

.page-faq .faq-cover::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -32%;
  width: 48%;
  height: 168%;
  background: linear-gradient(158deg, rgba(255, 212, 0, 0.16), rgba(0, 229, 255, 0.06) 52%, transparent 72%);
  clip-path: polygon(30% 0, 100% 0, 70% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-cover__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.05rem;
  max-width: 940px;
}

.page-faq .faq-cover__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  margin: 0;
  padding: 0.34rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bolt);
  border: 1px solid rgba(255, 212, 0, 0.35);
  border-radius: 999px;
  background: rgba(255, 212, 0, 0.06);
}

.page-faq .faq-cover__tag::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(57, 255, 136, 0.55);
}

.page-faq .faq-cover__title {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(2.05rem, 6.4vw, 4.3rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.022em;
}

.page-faq .faq-cover__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(1rem, 1.7vw, 1.15rem);
  line-height: 1.78;
  color: var(--faq-answer);
}

.page-faq .faq-cover__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--glass);
}

.page-faq .faq-stat .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--bolt);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stat:nth-child(2) .stat__value { color: var(--cyan); }
.page-faq .faq-stat:nth-child(3) .stat__value { color: var(--lime); }

.page-faq .faq-stat .stat__label {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--muted);
}

/* ── 主体布局 ── */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-top: clamp(1.7rem, 4vw, 2.8rem);
}

/* ── 侧栏 ── */
.page-faq .faq-side {
  display: grid;
  gap: 0.8rem;
  min-width: 0;
}

.page-faq .faq-side__card {
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--ink-800);
}

.page-faq .faq-side__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bolt);
}

.page-faq .faq-side__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.35rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-side__list::-webkit-scrollbar { height: 4px; }
.page-faq .faq-side__list::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: 4px;
}

.page-faq .faq-side__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.8rem;
  white-space: nowrap;
  font-size: 0.86rem;
  color: rgba(244, 240, 230, 0.82);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.09);
}

.page-faq .faq-side__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--bolt);
}

.page-faq .faq-side__note {
  padding: 0.9rem;
  border: 1px solid rgba(255, 212, 0, 0.28);
  border-radius: var(--r-m);
  background: linear-gradient(150deg, rgba(255, 212, 0, 0.09), rgba(0, 229, 255, 0.05) 70%, transparent);
}

.page-faq .faq-side__note p {
  margin: 0 0 0.6rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--faq-answer);
}

.page-faq .faq-side__cta {
  display: inline-block;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--bolt);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 212, 0, 0.45);
}

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

/* ── 章节 ── */
.page-faq .faq-main { min-width: 0; }

.page-faq .faq-sec {
  padding: clamp(1.7rem, 4vw, 2.5rem) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 92px;
}

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

.page-faq .faq-sec__head {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.3rem;
}

.page-faq .faq-sec__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--bolt);
}

@supports (-webkit-text-stroke: 1px red) {
  .page-faq .faq-sec__num {
    color: transparent;
    -webkit-text-stroke: 1.2px rgba(255, 212, 0, 0.62);
  }
}

.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(1.35rem, 3.2vw, 1.95rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.012em;
}

.page-faq .faq-sec__title::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 0.6rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--bolt), var(--cyan));
}

.page-faq .faq-sec__lead {
  margin: 0;
  max-width: 66ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ── 三步 ── */
.page-faq .faq-steps {
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-step {
  position: relative;
  padding: 1.25rem 1.1rem 1.15rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--ink-800);
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--bolt), var(--cyan));
}

.page-faq .faq-step__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--bolt);
}

.page-faq .faq-step__t {
  margin: 0.45rem 0 0.35rem;
  font-size: 1.04rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-step__d {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--faq-answer);
}

/* ── 图片 ── */
.page-faq .faq-figure,
.page-faq .faq-mobile-figure {
  margin: 1.35rem 0 0;
}

.page-faq .faq-figure img,
.page-faq .faq-mobile-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
}

.page-faq .media-frame__caption {
  margin-top: 0.55rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── 折叠问答 ── */
.page-faq .faq-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: rgba(255, 255, 255, 0.028);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 212, 0, 0.42);
  background: var(--ink-800);
}

.page-faq .faq-item__q {
  position: relative;
  display: block;
  padding: 1rem 2.7rem 1rem 1.1rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 1.15rem;
  top: 1.32rem;
  width: 0.52rem;
  height: 0.52rem;
  border-right: 2px solid var(--bolt);
  border-bottom: 2px solid var(--bolt);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
}

.page-faq .faq-item__q:hover { color: var(--bolt); }

.page-faq .faq-item__a {
  padding: 0 1.15rem 1.2rem;
}

.page-faq .faq-item__a::before {
  content: "";
  display: block;
  height: 1px;
  margin-bottom: 0.85rem;
  background: var(--line);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--faq-answer);
}

.page-faq .faq-item__a a,
.page-faq .faq-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-inline-link:hover {
  color: var(--bolt);
  border-color: var(--bolt);
}

/* ── 支持区 ── */
.page-faq .faq-support {
  display: grid;
  gap: 1rem;
  margin-top: 0.3rem;
  padding: clamp(1.15rem, 3vw, 1.7rem);
  border: 1px solid rgba(255, 212, 0, 0.3);
  border-radius: var(--r-m);
  background: linear-gradient(150deg, rgba(255, 212, 0, 0.1), rgba(0, 229, 255, 0.06) 66%, transparent);
}

.page-faq .faq-support__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--faq-answer);
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* ── 动效 ── */
@keyframes faqPulse {
  0% { box-shadow: 0 0 0 0 rgba(57, 255, 136, 0.55); }
  70% { box-shadow: 0 0 0 0.5rem rgba(57, 255, 136, 0); }
  100% { box-shadow: 0 0 0 0 rgba(57, 255, 136, 0); }
}

@media (prefers-reduced-motion: no-preference) {
  .page-faq .faq-cover__tag::before {
    animation: faqPulse 2.4s var(--ease) infinite;
  }
}

/* ── 响应式 ── */
@media (min-width: 480px) {
  .page-faq .faq-cover__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-mobile-figure {
    max-width: 78%;
    margin-left: auto;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-side-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-side__list {
    flex-direction: column;
    gap: 0.2rem;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-side__link {
    width: 100%;
    padding: 0.55rem 0.65rem;
    border-color: transparent;
    border-radius: var(--r-s);
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    border-color: rgba(0, 229, 255, 0.4);
  }

  .page-faq .faq-sec {
    scroll-margin-top: 108px;
  }
}
<<<END>>>