.page-faq {
  --faq-muted: rgba(35, 26, 18, 0.68);
  --faq-hairline: rgba(35, 26, 18, 0.14);
  background: var(--hth-ink);
  color: var(--hth-paper);
  overflow-wrap: break-word;
}

.page-faq img {
  display: block;
  max-width: 100%;
}

.page-faq .faq-hot__figure img,
.page-faq .faq-path__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(24px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(92, 255, 196, 0.12), transparent 62%),
    linear-gradient(180deg, var(--hth-ink) 0%, var(--hth-panel) 100%);
  border-bottom: var(--hth-edge);
}

.page-faq .faq-hero .hth-crumbs {
  margin-bottom: clamp(18px, 3.5vw, 32px);
}

.page-faq .faq-kicker {
  margin: 0 0 12px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--hth-orange);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  max-width: 20ch;
  font-family: var(--hth-font-display);
  font-weight: 900;
  font-size: clamp(30px, 8vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--hth-paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-family: var(--hth-font-body);
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.75;
  color: var(--hth-mist);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: var(--hth-edge);
  font-family: var(--hth-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--hth-mist);
}

.page-faq .faq-hero__num {
  color: var(--hth-neon);
  font-size: 14px;
  margin-right: 4px;
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-sec-head {
  margin-bottom: clamp(20px, 3vw, 32px);
  padding-bottom: 14px;
  border-bottom: var(--hth-edge);
}

.page-faq .faq-sec-head__title {
  margin: 0 0 6px;
  font-family: var(--hth-font-display);
  font-size: clamp(22px, 4.6vw, 34px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--hth-paper);
}

.page-faq .faq-sec-head__note {
  margin: 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--hth-mist);
}

/* ---------- 热门六条 ---------- */
.page-faq .faq-hot {
  padding-block: clamp(34px, 6vw, 72px);
  background: var(--hth-panel);
}

.page-faq .faq-hot__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-hot__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--hth-edge);
}

.page-faq .faq-hot__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: var(--hth-edge);
}

.page-faq .faq-hot__num {
  padding-top: 4px;
  font-family: var(--hth-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--hth-orange);
}

.page-faq .faq-hot__q {
  margin: 0 0 6px;
  font-family: var(--hth-font-display);
  font-size: clamp(16px, 2.6vw, 19px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--hth-paper);
}

.page-faq .faq-hot__a {
  margin: 0;
  font-family: var(--hth-font-body);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--hth-mist);
}

.page-faq .faq-hot__figure {
  margin: 0;
}

/* ---------- 分组问答 ---------- */
.page-faq .faq-body {
  padding-block: clamp(34px, 6vw, 72px);
  background: var(--hth-ink);
}

.page-faq .faq-body__split {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--hth-teal);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--hth-line);
}

.page-faq .faq-index__link {
  display: flex;
  gap: 10px;
  margin-left: -1px;
  padding: 8px 0 8px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.5;
  color: var(--hth-mist);
  text-decoration: none;
  transition: color 0.18s var(--hth-ease), border-color 0.18s var(--hth-ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--hth-neon);
  border-left-color: var(--hth-neon);
}

.page-faq .faq-index__num {
  padding-top: 3px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  color: var(--hth-teal);
}

.page-faq .faq-main {
  padding: clamp(20px, 4vw, 44px);
  background: var(--hth-paper);
  color: var(--hth-brown);
  border: 1px solid var(--faq-hairline);
  border-radius: var(--hth-radius);
}

.page-faq .faq-group {
  scroll-margin-block-start: 96px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 42px);
  padding-top: clamp(22px, 3.5vw, 34px);
  border-top: 1px solid var(--faq-hairline);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-group__num {
  font-family: var(--hth-font-mono);
  font-size: 12px;
  color: var(--hth-orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--hth-font-display);
  font-size: clamp(19px, 3.4vw, 24px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--hth-brown);
}

.page-faq .faq-group__note {
  margin: 6px 0 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-muted);
}

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

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--hth-font-display);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--hth-brown);
  transition: color 0.18s var(--hth-ease);
}

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

.page-faq .faq-q summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--hth-font-mono);
  font-size: 17px;
  line-height: 1.2;
  color: var(--hth-teal);
}

.page-faq .faq-q[open] summary::after {
  content: "\2212";
  color: var(--hth-orange);
}

.page-faq .faq-q summary:hover {
  color: var(--hth-teal);
}

.page-faq .faq-q__body {
  padding: 0 0 16px;
  font-family: var(--hth-font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-muted);
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
  max-width: 68ch;
}

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

.page-faq .faq-q__body a {
  color: var(--hth-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 四步路径 ---------- */
.page-faq .faq-path {
  padding-block: clamp(34px, 6vw, 72px);
  background: var(--hth-panel);
  border-top: var(--hth-edge);
  border-bottom: var(--hth-edge);
}

.page-faq .faq-path__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-path__steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 26px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--hth-neon), var(--hth-teal));
  opacity: 0.45;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--hth-neon);
  border-radius: 50%;
  background: var(--hth-ink);
  font-family: var(--hth-font-mono);
  font-size: 13px;
  color: var(--hth-neon);
}

.page-faq .faq-step__title {
  margin: 8px 0 4px;
  font-family: var(--hth-font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--hth-paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--hth-mist);
}

.page-faq .faq-step__text a {
  color: var(--hth-neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-path__figure {
  margin: 0;
}

/* ---------- 导出 ---------- */
.page-faq .faq-export {
  padding-block: clamp(34px, 6vw, 72px);
  background: var(--hth-ink);
}

.page-faq .faq-export__band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: clamp(22px, 3vw, 34px);
  padding: 14px 18px;
  border: var(--hth-edge);
  border-left: 3px solid var(--hth-orange);
  background: var(--hth-panel);
}

.page-faq .faq-export__band-num {
  font-family: var(--hth-font-mono);
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1;
  color: var(--hth-neon);
}

.page-faq .faq-export__band-label {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--hth-mist);
}

.page-faq .faq-export__body {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-export__copy p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-family: var(--hth-font-body);
  font-size: 15px;
  line-height: 1.78;
  color: var(--hth-mist);
}

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

.page-faq .faq-export__copy a {
  color: var(--hth-neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-export__fields {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hth-line);
  border: var(--hth-edge);
}

.page-faq .faq-export__field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 14px;
  background: var(--hth-panel);
}

.page-faq .faq-export__field-key {
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--hth-mist);
}

.page-faq .faq-export__field-val {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--hth-paper);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(34px, 6vw, 72px);
  background: linear-gradient(180deg, var(--hth-panel), var(--hth-ink));
}

.page-faq .faq-contact__card {
  padding: clamp(20px, 4vw, 40px);
  background: var(--hth-panel);
  border: var(--hth-edge);
  border-left: 3px solid var(--hth-neon);
  border-radius: var(--hth-radius);
}

.page-faq .faq-contact__title {
  margin: 0 0 10px;
  font-family: var(--hth-font-display);
  font-size: clamp(21px, 4vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--hth-paper);
}

.page-faq .faq-contact__lead {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--hth-mist);
}

.page-faq .faq-contact__rows {
  display: grid;
  gap: 1px;
  margin: 0 0 24px;
  background: var(--hth-line);
  border: var(--hth-edge);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 12px 14px;
  background: var(--hth-ink);
}

.page-faq .faq-contact__key {
  min-width: 72px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--hth-teal);
}

.page-faq .faq-contact__val {
  font-family: var(--hth-font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--hth-paper);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hot__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-path__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .faq-export__body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body__split {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-index__sticky {
    position: sticky;
    top: clamp(72px, 12vh, 104px);
  }

  .page-faq .faq-index__list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 380px) {
  .page-faq .faq-export__fields {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-step {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }

  .page-faq .faq-step__num {
    width: 34px;
    height: 34px;
    font-size: 12px;
  }

  .page-faq .faq-step::before {
    left: 16px;
    top: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-q summary {
    transition: none;
  }
}