.page-faq {
  --faq-narrow: 46rem;
  --faq-line: rgba(47, 230, 200, 0.30);
  background: var(--ink-900);
  color: var(--paper);
}

.page-faq .faq-h2 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(22px, 3.4vw, 36px);
  line-height: 1.22;
  margin: 8px 0 0;
  max-width: 24ch;
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  padding-top: clamp(20px, 4vw, 48px);
  position: relative;
}

.page-faq .faq-intro__shell {
  max-width: 68rem;
}

.page-faq .crumbs {
  margin-bottom: clamp(30px, 5vw, 58px);
}

.page-faq h1 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(26px, 5vw, 50px);
  line-height: 1.16;
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-faq .faq-intro .lead {
  margin-top: clamp(18px, 2.5vw, 28px);
  max-width: 60ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-intro__facts {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-intro__facts li {
  background: var(--ink-850);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .faq-intro__facts .num {
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  margin-right: 4px;
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-cols {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-faq .faq-steps__lead,
.page-faq .faq-order__lead,
.page-faq .faq-qa__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-steps {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(26px, 3.5vw, 38px);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 52px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--faq-line), rgba(47, 230, 200, 0.04));
}

.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: 56px;
  height: 46px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(47, 230, 200, 0.07);
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
}

.page-faq .faq-step__body h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin: 10px 0 8px;
  color: var(--paper);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-step__body .num {
  color: var(--paper);
  font-weight: 600;
}

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

.page-faq .faq-steps__figure .figure__frame {
  border-radius: var(--r-lg);
  border-color: var(--line);
}

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

.page-faq .faq-steps__figure .figure__caption,
.page-faq .faq-order__figure .figure__caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 阅读顺序 ---------- */
.page-faq .faq-order__grid {
  display: grid;
  gap: var(--gap);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-faq .faq-order__card {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-850);
}

.page-faq .faq-order__card--fast {
  border-color: var(--faq-line);
  background: linear-gradient(158deg, rgba(47, 230, 200, 0.12), rgba(14, 20, 54, 0.96) 62%);
}

.page-faq .faq-order__time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 16px 0 10px;
  color: var(--paper);
}

.page-faq .faq-order__card--fast .faq-order__time {
  color: var(--cyan);
}

.page-faq .faq-order__card--slow .faq-order__time {
  color: var(--muted);
}

.page-faq .faq-order__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-order__figure {
  margin: clamp(28px, 4.5vw, 48px) 0 0;
}

.page-faq .faq-order__figure .figure__frame {
  border-radius: var(--r-lg);
  border-color: var(--line);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa__shell {
  max-width: var(--faq-narrow);
}

.page-faq .faq-group {
  margin-top: clamp(30px, 4.5vw, 48px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-group__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

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

.page-faq .faq-q summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 42px 16px 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  transition: color 160ms var(--ease);
}

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

.page-faq .faq-q summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 200ms var(--ease);
}

.page-faq .faq-q[open] summary::after {
  content: "\2212";
}

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

.page-faq .faq-q[open] summary {
  color: var(--cyan);
}

.page-faq .faq-q p {
  margin: 0 0 20px;
  padding-right: 28px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-q p .num {
  color: var(--paper);
}

/* ---------- 纠错与客服 ---------- */
.page-faq .faq-support__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-support__text p {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-support__panel {
  align-self: start;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--faq-line);
  border-left-width: 3px;
  border-radius: var(--r-lg);
  background: linear-gradient(170deg, rgba(47, 230, 200, 0.10), rgba(14, 20, 54, 0.92) 58%);
}

.page-faq .faq-support__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-support__mail {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.2vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-support__meta {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--paper);
}

.page-faq .faq-support__meta .num {
  font-weight: 600;
}

.page-faq .faq-support__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-next__grid {
  display: grid;
  gap: var(--gap);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .faq-next__card {
  display: block;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-850);
  text-decoration: none;
  color: inherit;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: var(--faq-line);
  transform: translateY(-2px);
}

.page-faq .faq-next__title {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  color: var(--paper);
}

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

.page-faq .faq-next__desc {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 焦点可见 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-intro__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-order__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-support__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-cols {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-steps__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

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