/* ===== 上手问答 · 页面专属样式（作用域 .page-faq） ===== */
.page-faq {
  --faq-side: 290px;
  --faq-gap: clamp(26px, 4vw, 54px);
  --faq-item-bg: linear-gradient(180deg, rgba(15, 44, 42, 0.94) 0%, rgba(11, 23, 25, 0.94) 100%);
  position: relative;
}

/* ---------- 页面语境提示 ---------- */
.page-faq .pgt-breadcrumb {
  padding-top: clamp(14px, 2.4vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(22px, 4.4vw, 48px) clamp(8px, 1.6vw, 16px);
  background:
    radial-gradient(72% 132% at 10% -32%, rgba(59, 42, 94, 0.58), transparent 66%),
    radial-gradient(58% 120% at 94% -12%, rgba(31, 140, 121, 0.30), transparent 70%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold) 24%, var(--violet-500) 76%, transparent);
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  max-width: 21ch;
}

.page-faq .faq-hero__lead {
  max-width: 58ch;
  color: var(--stone-400);
}

.page-faq .faq-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: 0.88rem;
  color: var(--stone-400);
}

/* ---------- 主体双列 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-block: clamp(28px, 4.6vw, 56px) clamp(58px, 8vw, 108px);
}

.page-faq .faq-side,
.page-faq .faq-list {
  min-width: 0;
}

/* ---------- 左列：锚点 + 示意图 ---------- */
.page-faq .faq-side__sticky {
  display: grid;
  gap: 16px;
}

.page-faq .faq-side__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--gold-500);
  text-transform: uppercase;
}

.page-faq .faq-anchors {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-faq .faq-anchors::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-anchor {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-s);
  background: var(--glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--mist-100);
  font-size: 0.9rem;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

.page-faq .faq-anchor__no {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--stone-400);
  transition: color var(--dur-2) var(--ease);
}

.page-faq .faq-anchor:hover,
.page-faq .faq-anchor:focus-visible {
  border-color: rgba(139, 92, 246, 0.55);
  color: var(--gold-200);
}

.page-faq .faq-anchor:hover .faq-anchor__no,
.page-faq .faq-anchor:focus-visible .faq-anchor__no {
  color: var(--violet-500);
}

.page-faq .faq-side__figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  background: var(--solid-card);
  overflow: hidden;
}

.page-faq .faq-side__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 7;
}

.page-faq .faq-side__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.76rem;
  line-height: 1.65;
  color: var(--stone-400);
}

/* ---------- 右列：问题分组 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: clamp(30px, 4.4vw, 48px);
}

.page-faq .faq-group {
  display: grid;
  gap: 12px;
  scroll-margin-top: calc(var(--hdr-h-min) + 24px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 5px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group__no {
  grid-row: 1 / span 2;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--gold-500);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--stone-400);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  background: var(--faq-item-bg);
  overflow: hidden;
  transition: border-color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: var(--line-gold);
  transform: none;
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  column-gap: 14px;
  align-items: start;
  padding: 15px clamp(16px, 2.2vw, 20px);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur-2) var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  background: rgba(31, 140, 121, 0.08);
}

.page-faq .faq-item__no {
  padding-top: 0.34em;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--stone-400);
  transition: color var(--dur-2) var(--ease);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--gold-500);
}

.page-faq .faq-item__text {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--mist-100);
}

.page-faq .faq-item__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 0.38em;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  border-radius: var(--r-xs);
  background: var(--teal-200);
  transition: transform var(--dur-2) var(--ease), background-color var(--dur-2) var(--ease);
}

.page-faq .faq-item__sign::before {
  inset: 7px 0 auto 0;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  inset: 0 auto 0 7px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--violet-500);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
}

.page-faq .faq-item__a {
  padding: 0 clamp(16px, 2.2vw, 20px) clamp(16px, 2.2vw, 20px);
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-answer-in var(--dur-3) var(--ease) both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__a > p {
  margin: 0;
  padding-top: 14px;
  max-width: 68ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--teal-200);
}

.page-faq .faq-item__a > p + p {
  padding-top: 8px;
}

.page-faq .faq-item__a a {
  color: var(--gold-500);
  text-decoration: underline;
  text-decoration-color: var(--line-gold);
  text-underline-offset: 3px;
  transition: color var(--dur-2) var(--ease);
}

.page-faq .faq-item__a a:hover {
  color: var(--gold-200);
}

/* ---------- 组内插图 ---------- */
.page-faq .faq-figure-inline {
  margin: 4px 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  background: var(--solid-card);
  overflow: hidden;
}

.page-faq .faq-figure-inline img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 7;
}

.page-faq .faq-figure-inline figcaption {
  padding: 12px clamp(16px, 2.2vw, 20px);
  border-top: 1px solid var(--line-soft);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--stone-400);
}

/* ---------- 桌面：真正双列 + 粘性左栏 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side__sticky {
    position: sticky;
    top: calc(var(--hdr-h-min) + 26px);
    gap: 18px;
  }

  .page-faq .faq-anchors {
    flex-direction: column;
    gap: 5px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-anchor {
    white-space: normal;
  }

  .page-faq .faq-side__figure img {
    aspect-ratio: 3 / 2;
  }

  .page-faq .faq-figure-inline img {
    aspect-ratio: 21 / 9;
  }
}

/* ---------- 更宽屏：读数与留白再松一档 ---------- */
@media (min-width: 1280px) {
  .page-faq {
    --faq-side: 310px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-anchor,
  .page-faq .faq-anchor__no {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }
}