.page-faq {
  --faq-cut: 14px;
  --faq-gap: clamp(18px, 3vw, 32px);
  background: var(--ink);
  color: var(--text);
}

.page-faq .page-shell {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-open {
  margin-top: clamp(16px, 3vw, 28px);
  padding: clamp(28px, 5vw, 64px) 0 clamp(32px, 6vw, 68px);
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(120% 90% at 90% -10%, rgba(212, 166, 74, .13), transparent 62%),
    radial-gradient(90% 80% at -5% 105%, rgba(110, 31, 40, .22), transparent 64%);
}

.page-faq .faq-open__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-open__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .22em;
  color: var(--gold);
  text-transform: uppercase;
  padding-left: 34px;
  position: relative;
}

.page-faq .faq-open__kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 1px;
  background: var(--copper);
}

.page-faq .faq-open h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7.4vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-open .lede {
  margin: 0;
  max-width: 62ch;
  color: rgba(237, 231, 220, .84);
  font-size: clamp(.98rem, 1.6vw, 1.06rem);
  line-height: 1.8;
}

.page-faq .faq-open__meta {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

.page-faq .faq-open__path {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  background: linear-gradient(155deg, #1d1418 0%, var(--ink-2) 52%, #0e0e12 100%);
  border: 1px solid var(--line-gold);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
}

.page-faq .faq-open__path::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 18%;
  height: 3px;
  background: linear-gradient(90deg, var(--wine), var(--gold));
}

.page-faq .faq-open__path-title {
  margin: 6px 0 18px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--gold-hi);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .faq-steps__no {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--copper);
  padding-top: 3px;
}

.page-faq .faq-steps__name {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-faq .faq-steps__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-open__cta {
  margin-top: 22px;
  width: 100%;
  text-align: center;
}

/* ---------- 索引 + 问答主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(32px, 6vw, 64px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line-gold);
  padding-top: 12px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--copper);
}

.page-faq .faq-index__list {
  list-style: none;
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line-soft);
  border-radius: 0;
  color: var(--text);
  text-decoration: none;
  font-size: .86rem;
  line-height: 1.4;
  background: rgba(20, 19, 24, .72);
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--copper);
  color: var(--gold-hi);
  transform: translateY(-2px);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--mist);
  border-left: 1px solid var(--copper);
  padding-left: 10px;
}

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

.page-faq .faq-group {
  padding-bottom: clamp(26px, 4vw, 48px);
  margin-bottom: clamp(26px, 4vw, 48px);
  border-bottom: 1px solid rgba(212, 166, 74, .12);
}

.page-faq .faq-group:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-group__no {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  line-height: 1;
  color: var(--copper);
  opacity: .9;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 3.4vw, 1.7rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-group__anchor {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--gold);
  text-decoration: none;
  padding: 2px 6px;
  border: 1px solid var(--line-soft);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-group__anchor:hover,
.page-faq .faq-group__anchor:focus-visible {
  color: var(--gold-hi);
  border-color: var(--copper);
}

.page-faq .faq-group__anchor:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-group__note {
  margin: 14px 0 22px;
  max-width: 62ch;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--mist);
  border-left: 2px solid var(--wine);
  padding-left: 12px;
}

/* ---------- 问答条 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa__q {
  list-style: none;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 10px;
  padding: 15px 4px;
  cursor: pointer;
  transition: background-color .2s var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  grid-column: 3;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--gold);
}

.page-faq .qa[open] .qa__q::after {
  content: "—";
  color: var(--gold-hi);
}

.page-faq .qa__q:hover {
  background: rgba(212, 166, 74, .05);
}

.page-faq .qa__q:hover .qa__title {
  color: var(--gold-hi);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -2px;
  box-shadow: inset 0 0 0 1px rgba(127, 200, 194, .5);
}

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--copper);
}

.page-faq .qa__title {
  font-size: clamp(.95rem, 1.8vw, 1.02rem);
  line-height: 1.5;
  color: var(--text);
  transition: color .2s var(--ease);
}

.page-faq .qa__body {
  margin: 0 0 18px;
  padding: 16px 18px 18px;
  background: var(--paper);
  color: #1b1719;
  border-left: 3px solid var(--gold);
  font-size: .95rem;
  line-height: 1.78;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-faq .qa__body p {
  margin: 0;
}

/* ---------- 图文块 ---------- */
.page-faq .faq-fig {
  margin: 24px 0 0;
}

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

.page-faq .faq-fig--archive img {
  max-height: 520px;
}

.page-faq .faq-fig--vendor {
  margin: 0 0 24px;
}

.page-faq .faq-fig--vendor img {
  max-height: 340px;
}

/* ---------- 支持区 ---------- */
.page-faq .faq-help {
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line-gold);
  background:
    linear-gradient(135deg, rgba(110, 31, 40, .55) 0%, rgba(11, 11, 13, .96) 58%),
    var(--ink-2);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .faq-help__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 4vw, 1.9rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-help__lede {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(244, 239, 230, .82);
}

.page-faq .faq-help__meta {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
  border-top: 1px solid var(--line-paper);
  padding-top: 18px;
}

.page-faq .faq-help__row {
  display: grid;
  gap: 4px;
}

.page-faq .faq-help__k {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--copper);
}

.page-faq .faq-help__v {
  margin: 0;
  font-size: .94rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-open__path .faq-open__cta {
    width: auto;
    display: inline-block;
    padding-left: 26px;
    padding-right: 26px;
  }

  .page-faq .faq-fig--vendor {
    margin-top: 4px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-open__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-faq .faq-group--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: clamp(22px, 3vw, 36px);
    align-items: start;
  }

  .page-faq .faq-fig--archive {
    margin-top: 6px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-index__list {
    display: grid;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__item {
    border-bottom: 1px solid var(--line-soft);
  }

  .page-faq .faq-index__link {
    background: transparent;
    border: 0;
    padding: 11px 0;
    width: 100%;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: translateX(3px);
  }

  .page-faq .qa__q {
    padding: 17px 6px;
    grid-template-columns: 48px minmax(0, 1fr) 24px;
  }

  .page-faq .qa__body {
    padding: 18px 24px 20px;
    margin-left: 48px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-open {
    padding-top: 72px;
    padding-bottom: 76px;
  }
}

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

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    transform: none;
  }
}

@media print {
  .page-faq {
    background: #fff;
    color: #000;
  }

  .page-faq .faq-open,
  .page-faq .faq-help,
  .page-faq .faq-open__path {
    background: #fff;
    border-color: #bbb;
    clip-path: none;
  }

  .page-faq .faq-open h1,
  .page-faq .faq-group__title,
  .page-faq .faq-steps__name,
  .page-faq .faq-help__title,
  .page-faq .faq-help__v {
    color: #000;
  }

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

  .page-faq .qa__body {
    display: block !important;
    background: #fff;
    color: #000;
    border-left: 2px solid #000;
    clip-path: none;
    page-break-inside: avoid;
  }

  .page-faq .qa__no,
  .page-faq .qa__title {
    color: #000;
  }

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

  .page-faq a[href^="/"]::after {
    content: " (" attr(href) ")";
    font-size: .78em;
    color: #444;
  }
}