.page-faq {
  --faq-cut: 14px;
  --faq-gap: clamp(1.5rem, 3.4vw, 3rem);
  --faq-rail-w: 258px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -28% -22% 8% -32%;
  background:
    radial-gradient(50% 44% at 16% 34%, rgba(227, 178, 91, .16), transparent 72%),
    radial-gradient(44% 50% at 84% 6%, rgba(79, 163, 165, .15), transparent 74%),
    radial-gradient(36% 38% at 62% 90%, rgba(232, 115, 74, .09), transparent 76%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.25rem;
}

.page-faq .faq-kicker {
  font-size: .76rem;
  letter-spacing: .24em;
  color: var(--gold);
  margin: 0 0 .95rem;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.7rem);
  line-height: 1.16;
  letter-spacing: .012em;
  color: var(--ink);
  margin: 0 0 1.35rem;
  max-width: 15em;
}

.page-faq .faq-hero__text {
  font-size: 1rem;
  line-height: 1.95;
  color: var(--ink);
  opacity: .86;
  margin: 0 0 1rem;
  max-width: 40em;
}

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

.page-faq .faq-hero__aside {
  position: relative;
  background: var(--indigo-700);
  padding: 1.6rem 1.5rem 1.5rem;
  border-left: 3px solid var(--gold);
}

.page-faq .faq-hero__aside::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 24px;
  height: 24px;
  background: linear-gradient(225deg, var(--indigo-900) 47%, var(--line) 48%, var(--line) 51%, transparent 52%);
  pointer-events: none;
}

.page-faq .faq-hero__aside-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold-soft);
  margin: 0 0 .7rem;
}

.page-faq .faq-hero__aside-body {
  font-size: .92rem;
  line-height: 1.9;
  color: var(--ink);
  opacity: .82;
  margin: 0 0 1.3rem;
}

.page-faq .faq-hero__aside-link {
  display: inline-block;
}

/* ---------- 三步走 ---------- */
.page-faq .faq-steps__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-faq .faq-figure {
  margin: 0;
  overflow: hidden;
  background: linear-gradient(155deg, var(--indigo-700), var(--indigo-900));
  border: 1px solid var(--line);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.76) contrast(.97);
}

.page-faq .faq-figure--steps {
  aspect-ratio: 10 / 7;
}

.page-faq .faq-figure--list {
  aspect-ratio: 3 / 2;
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-steps__body h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4.2vw, 2.15rem);
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 .9rem;
}

.page-faq .faq-steps__lead {
  font-size: .98rem;
  line-height: 1.9;
  color: var(--muted);
  margin: 0 0 1.6rem;
  max-width: 38em;
}

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

.page-faq .faq-steps__list > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.1rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--gold);
  background: var(--indigo-700);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.page-faq .faq-steps__copy h3 {
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 .4rem;
}

.page-faq .faq-steps__copy p {
  font-size: .93rem;
  line-height: 1.9;
  color: var(--muted);
  margin: 0;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

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

.page-faq .faq-group + .faq-group {
  margin-top: clamp(2.75rem, 6vw, 4.5rem);
}

.page-faq .faq-group__head {
  display: grid;
  gap: .55rem;
  margin-bottom: 1.4rem;
}

.page-faq .faq-group__label {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin: 0;
}

.page-faq .faq-group__kicker {
  font-size: .8rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4vw, 1.95rem);
  line-height: 1.35;
  color: var(--ink);
  margin: 0;
}

.page-faq .faq-group__note {
  font-size: .92rem;
  line-height: 1.9;
  color: var(--muted);
  margin: 0;
  max-width: 42em;
}

/* 折叠条目 */
.page-faq .accordion__item {
  border-bottom: 1px solid var(--line);
}

.page-faq .accordion__item:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-q-title {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .accordion__button {
  display: flex;
  align-items: baseline;
  gap: .95rem;
  width: 100%;
  padding: 1.1rem .2rem 1.1rem 0;
  background: transparent;
  border: 0;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  line-height: 1.7;
  text-align: left;
  cursor: pointer;
  transition: color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .accordion__button:hover {
  color: var(--gold-soft);
}

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

.page-faq .accordion__index {
  flex: none;
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--gold);
  transition: color .22s var(--ease);
}

.page-faq .accordion__button[aria-expanded="true"] .accordion__index {
  color: var(--teal);
}

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

.page-faq .accordion__button[aria-expanded="true"] .faq-q {
  color: var(--gold-soft);
}

.page-faq .accordion__panel {
  position: relative;
  padding: 0 0 1.5rem 2.9rem;
  font-size: .95rem;
  line-height: 1.95;
}

.page-faq .accordion__panel::before {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: .2rem;
  bottom: 1.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--teal), rgba(79, 163, 165, .12));
}

.page-faq .accordion__panel p {
  margin: 0;
  color: var(--ink);
  opacity: .86;
}

.page-faq .faq-footnote {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  font-size: .88rem;
  line-height: 1.95;
  color: var(--muted);
}

/* ---------- 右侧窄栏 ---------- */
.page-faq .faq-rail {
  border-top: 2px solid var(--gold);
  padding-top: 1.15rem;
}

.page-faq .faq-rail__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 .6rem;
}

.page-faq .faq-rail__hint {
  font-size: .83rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 1.15rem;
}

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

.page-faq .faq-rail__list a {
  display: flex;
  gap: .7rem;
  padding: .62rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: .89rem;
  line-height: 1.6;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-rail__list a:hover {
  color: var(--gold-soft);
  padding-left: .35rem;
}

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

.page-faq .faq-rail__list .num {
  flex: none;
  font-size: .78rem;
  color: var(--gold);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 3.25rem;
    align-items: end;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 3.25rem;
    align-items: start;
  }

  .page-faq .faq-steps__list > li {
    padding: 1.35rem 0;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail-w);
    gap: 3.5rem;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 132px;
  }
}

@media (max-width: 520px) {
  .page-faq .accordion__button {
    gap: .7rem;
    font-size: .95rem;
  }

  .page-faq .accordion__panel {
    padding-left: 2.35rem;
  }

  .page-faq .accordion__panel::before {
    left: .7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__button,
  .page-faq .accordion__index,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}