.page-faq {
  --faq-rail: 236px;
  --faq-scroll-offset: 96px;
  padding-bottom: clamp(64px, 9vw, 120px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 26px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grid-soft);
}

.page-faq .faq-crumb a {
  color: var(--dust);
  text-decoration: none;
  transition: color 180ms ease-out;
}

.page-faq .faq-crumb a:hover {
  color: var(--signal);
}

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

.page-faq .faq-crumb-sep {
  color: var(--grid);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 clamp(52px, 7vw, 84px);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

@media (min-width: 1024px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(220px, 4fr);
    gap: clamp(48px, 5vw, 80px);
    align-items: end;
  }
}

.page-faq .faq-kicker {
  margin: 0 0 20px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 19ch;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: min(190px, 36%);
  height: 4px;
  margin-top: 24px;
  border-radius: 999px;
  background: var(--signal);
}

.page-faq .faq-hero-lede {
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--dust);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 18px 16px 16px;
  background: var(--panel);
}

.page-faq .faq-stat-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grid-soft);
}

.page-faq .faq-stat-value {
  margin: 0;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-stat-unit {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--grid-soft);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-block {
  padding: clamp(52px, 7vw, 96px) 0 0;
}

.page-faq .faq-quickstart .section-head {
  margin-bottom: clamp(26px, 3.5vw, 40px);
}

/* ---------- 上手五步 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-faq .faq-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .faq-media--square img {
  aspect-ratio: 10 / 7;
}

.page-faq .faq-figure .media-caption,
.page-faq .faq-inline-figure .media-caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--grid-soft);
}

.page-faq .faq-steps {
  display: block;
}

.page-faq .faq-steps .tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-steps .tablist::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-steps .tab {
  flex: 0 0 auto;
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 10px 17px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  white-space: nowrap;
  color: var(--dust);
  background: var(--panel);
  transition: background 180ms ease-out, color 180ms ease-out;
}

.page-faq .faq-steps .tab:hover {
  background: var(--panel-soft);
  color: var(--paper);
}

.page-faq .faq-steps .tab[aria-selected="true"] {
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

.page-faq .faq-steps .tab:focus-visible {
  outline: 2px solid var(--signal-soft);
  outline-offset: 3px;
}

.page-faq .tabpanel {
  margin-top: 22px;
  padding: 24px clamp(18px, 3vw, 32px);
  border-left: 3px solid var(--signal);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--panel);
}

.page-faq .tabpanel[hidden] {
  display: none;
}

.page-faq .tabpanel:focus-visible {
  outline: 2px solid var(--signal-soft);
  outline-offset: 3px;
}

.page-faq .faq-step-text {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
}

.page-faq .faq-step-text + .faq-step-text {
  margin-top: 14px;
  color: var(--dust);
}

/* ---------- 问答区布局 ---------- */
.page-faq .faq-ask .section-head {
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grid-soft);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-link {
  display: block;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--dust);
  background: var(--panel);
  transition: color 180ms ease-out, background 180ms ease-out, border-color 180ms ease-out;
}

.page-faq .faq-index-link:hover {
  color: var(--paper);
  background: var(--panel-soft);
}

.page-faq .faq-index-link.is-active {
  color: var(--ink);
  background: var(--signal);
  font-weight: 600;
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-scroll-offset);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index-link {
    padding: 11px 0 11px 16px;
    border-radius: 0;
    border-left: 3px solid transparent;
    background: transparent;
  }

  .page-faq .faq-index-link:hover {
    background: transparent;
    border-left-color: var(--grid);
    color: var(--paper);
  }

  .page-faq .faq-index-link.is-active {
    background: transparent;
    color: var(--signal);
    border-left-color: var(--signal);
  }
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(38px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-scroll-offset);
  min-width: 0;
}

.page-faq .faq-group-title {
  margin: 0 0 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline-strong);
  font-family: var(--font-head);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-list {
  display: block;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-question {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 2px 19px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--paper);
  transition: color 180ms ease-out;
}

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

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

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

.page-faq .faq-question:hover {
  color: var(--signal-soft);
}

.page-faq .faq-question:focus-visible {
  outline: 2px solid var(--signal-soft);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-q-icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  transition: transform 320ms var(--ease), border-color 180ms ease-out;
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--grid-soft);
  transform: translate(-50%, -50%);
  transition: opacity 180ms ease-out, background 180ms ease-out;
}

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

.page-faq .faq-item[open] .faq-q-icon {
  transform: rotate(180deg);
  border-color: var(--signal);
}

.page-faq .faq-item[open] .faq-q-icon::before,
.page-faq .faq-item[open] .faq-q-icon::after {
  background: var(--signal);
}

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

.page-faq .faq-answer {
  margin: 0 0 18px;
  padding: 18px clamp(16px, 2.4vw, 24px) 20px;
  border-left: 3px solid var(--signal);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(100deg, rgba(255, 106, 19, 0.09), rgba(18, 49, 42, 0.55) 72%);
  font-size: 15px;
  line-height: 1.82;
  color: var(--dust);
}

.page-faq .faq-item[open] .faq-answer {
  animation: faq-answer-in 260ms var(--ease);
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-answer p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .faq-answer a {
  color: var(--signal-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 164, 92, 0.45);
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

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

/* ---------- 答案内步骤 ---------- */
.page-faq .faq-steps-list {
  counter-reset: faqstep;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 13px;
}

.page-faq .faq-steps-list li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 42px;
  line-height: 1.72;
}

.page-faq .faq-steps-list li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  top: 1px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--signal);
}

.page-faq .faq-steps-list li::after {
  content: "";
  position: absolute;
  top: 21px;
  bottom: -13px;
  left: 9px;
  width: 1px;
  background: var(--hairline-strong);
}

.page-faq .faq-steps-list li:last-child::after {
  content: none;
}

/* ---------- 区块内插图 ---------- */
.page-faq .faq-inline-figure {
  margin: clamp(24px, 3.5vw, 38px) 0 0;
}

/* ---------- 底部行动条 ---------- */
.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: clamp(36px, 5vw, 60px);
  padding: clamp(22px, 3vw, 32px) clamp(20px, 3vw, 34px);
  border-radius: var(--radius-lg);
  background: var(--panel);
  border-left: 3px solid var(--signal);
}

.page-faq .faq-cta-text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

@media (max-width: 560px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-cta .btn {
    width: 100%;
    text-align: center;
  }
}

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

  .page-faq .faq-q-icon {
    transition: none;
  }

  .page-faq .faq-steps .tab,
  .page-faq .faq-index-link,
  .page-faq .faq-question {
    transition: none;
  }
}