.page-faq {
  --faq-rail: 272px;
  --faq-gap: clamp(1.25rem, 3vw, 2.75rem);
  background:
    radial-gradient(1100px 480px at 82% -10%, rgba(255, 90, 31, 0.14), transparent 65%),
    radial-gradient(700px 420px at -5% 28%, rgba(42, 212, 196, 0.07), transparent 70%),
    var(--ink);
  color: var(--text);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  text-wrap: balance;
}

.page-faq .crumbs {
  padding-top: clamp(0.9rem, 2.5vw, 1.5rem);
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}

.page-faq .crumbs__list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.page-faq .crumbs__link {
  color: var(--text-faint);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .crumbs__link:hover {
  color: var(--ember);
}

.page-faq .crumbs__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .crumbs__sep {
  color: var(--edge);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: center;
  padding-block: clamp(1rem, 3vw, 1.75rem) clamp(2rem, 4.5vw, 3.25rem);
}

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

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0.7rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6.2vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--mist);
}

.page-faq .faq-hero h1 .tilt {
  display: inline-block;
  transform: rotate(-3deg);
  color: var(--ember);
}

.page-faq .lede {
  margin: 0;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.6vw, 1.1rem);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-jump a:hover {
  color: var(--mist);
  border-color: var(--ember);
  background: rgba(255, 90, 31, 0.08);
}

.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-hero__media {
  margin: 0;
  min-width: 0;
}

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

.page-faq .media-caption {
  margin-top: 0.75rem;
  font-family: var(--font-ui);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-faint);
}

/* ---------- 双栏诊断 ---------- */
.page-faq .faq-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-rail {
  min-width: 0;
  border-top: 1px solid var(--edge);
  padding-top: 1rem;
}

.page-faq .faq-rail__tag {
  margin: 0 0 0.75rem;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ember);
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.6rem 0.25rem;
  border-bottom: 1px solid rgba(48, 55, 64, 0.55);
  font-family: var(--font-ui);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link .num {
  font-size: 11px;
  color: var(--steel);
}

.page-faq .faq-rail__link:hover {
  color: var(--mist);
  border-color: var(--ember);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-rail__note {
  margin: 1rem 0 0;
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--text-faint);
}

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

.page-faq .faq-card {
  padding: clamp(1.4rem, 3.5vw, 2.25rem) 0 clamp(1.75rem, 4vw, 2.75rem);
  border-top: 1px solid var(--edge);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

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

.page-faq .faq-card__tick {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .faq-card__title {
  margin: 0.5rem 0 0.8rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.6vw, 1.95rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-card__lead {
  margin: 0 0 0.9rem;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

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

.page-faq .faq-card p a,
.page-faq .faq-more__body a {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-color: rgba(244, 183, 64, 0.45);
  text-underline-offset: 3px;
}

.page-faq .faq-card p a:hover,
.page-faq .faq-more__body a:hover {
  color: var(--ember);
}

.page-faq .faq-card p a:focus-visible,
.page-faq .faq-more__body a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(48, 55, 64, 0.45);
}

.page-faq .faq-step__no {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--ember);
}

.page-faq .faq-step__name {
  margin: 0 0 0.35rem;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-faq .faq-step p {
  margin: 0 0 0.5rem;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-step .faq-done {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 0;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
}

.page-faq .faq-step .faq-done::before {
  content: "✓";
  font-family: var(--font-data);
}

/* ---------- 展开补充 ---------- */
.page-faq .faq-more {
  margin-top: 1.4rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: rgba(23, 27, 33, 0.6);
}

.page-faq .faq-more > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-more > summary::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--ember);
}

.page-faq .faq-more[open] > summary::after {
  content: "–";
}

.page-faq .faq-more > summary:hover {
  color: var(--mist);
}

.page-faq .faq-more > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-more__body {
  padding: 0 1rem 1rem;
}

.page-faq .faq-more__body p {
  margin: 0 0 0.6rem;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text-soft);
}

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

/* ---------- 安全区 ---------- */
.page-faq .faq-security {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.page-faq .faq-security figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-plain {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-plain li {
  position: relative;
  padding-left: 1.15rem;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 0.85rem;
  height: 1px;
  background: var(--ember);
}

/* ---------- 发信清单 ---------- */
.page-faq .faq-checklist {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
  font-family: var(--font-body);
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-checklist li::before {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  margin-top: 0.38rem;
  border: 1px solid var(--ember);
  border-radius: var(--radius);
}

.page-faq .faq-template {
  margin: 1.4rem 0 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
  background: rgba(11, 13, 16, 0.82);
  font-family: var(--font-data);
  font-size: 0.82rem;
  line-height: 1.95;
  color: var(--text-soft);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.page-faq .faq-contact {
  margin: 1.25rem 0 0;
  font-family: var(--font-ui);
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact .faq-mail {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--gold);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  }

  .page-faq .faq-security {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
    gap: 2rem;
  }

  .page-faq .faq-step {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: 1.1rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-board {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--edge);
    padding-left: 1.1rem;
  }

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }

  .page-faq .faq-card__lead {
    font-size: 1.02rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a,
  .page-faq .faq-rail__link,
  .page-faq .faq-more > summary,
  .page-faq .crumbs__link {
    transition: none;
  }
}