.page-faq {
  --faq-line: rgba(154, 166, 188, .14);
  --faq-line-gold: rgba(232, 176, 75, .30);
  --faq-wash: rgba(27, 39, 64, .52);
  padding-bottom: clamp(24px, 4vw, 48px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5.4vw, 68px) 0 clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -12%;
  width: min(680px, 78vw);
  height: 380px;
  background: linear-gradient(118deg, rgba(240, 78, 35, .26), rgba(240, 78, 35, 0) 70%);
  clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: min(420px, 54vw);
  height: 1px;
  background: linear-gradient(90deg, rgba(232, 176, 75, .62), rgba(232, 176, 75, 0));
  pointer-events: none;
}

.page-faq .faq-hero > .container {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5.2vw, 50px);
  line-height: 1.24;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

/* ---------- 分类胶囊 ---------- */
.page-faq .faq-chips {
  display: flex;
  gap: 10px;
  margin-top: 6px;
  padding-bottom: 6px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 9px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--faq-wash);
  color: var(--cream);
  font-size: 14px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--line-gold);
  background: rgba(240, 78, 35, .16);
  color: #FFF3EA;
  outline: none;
}

/* ---------- 通栏氛围图 ---------- */
.page-faq .faq-banner {
  margin: clamp(20px, 3.4vw, 36px) auto 0;
}

.page-faq .faq-banner .media-frame {
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--navy);
  box-shadow: var(--shadow-soft);
}

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

.page-faq .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--steel);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-top: clamp(28px, 4.4vw, 54px);
}

.page-faq .faq-group {
  position: relative;
  padding: clamp(30px, 4.4vw, 56px) 0 clamp(10px, 1.6vw, 18px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(340px, 62%);
  height: 1px;
  background: linear-gradient(90deg, rgba(240, 78, 35, .72), rgba(240, 78, 35, 0));
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--flame);
}

.page-faq .faq-group__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.34;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-faq .faq-group__lead {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.76;
  color: var(--steel);
}

/* ---------- 问题列表 ---------- */
.page-faq .faq-list {
  margin-top: clamp(18px, 2.6vw, 28px);
  padding-left: clamp(14px, 2.2vw, 26px);
  border-left: 1px solid var(--line);
}

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

.page-faq .qa[data-reveal] {
  animation: faq-item-in .34s var(--ease) both;
}

.page-faq .faq-list[data-reveal-group] .qa[data-reveal]:nth-child(2) { animation-delay: .06s; }
.page-faq .faq-list[data-reveal-group] .qa[data-reveal]:nth-child(3) { animation-delay: .12s; }
.page-faq .faq-list[data-reveal-group] .qa[data-reveal]:nth-child(4) { animation-delay: .18s; }

@keyframes faq-item-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  transition: color .22s var(--ease);
}

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

.page-faq .qa-q:hover .qa-label,
.page-faq .qa-q:focus-visible .qa-label {
  color: #FFD9C4;
}

.page-faq .qa-q:focus-visible {
  outline: 1px solid var(--line-gold);
  outline-offset: 4px;
}

.page-faq .qa-idx {
  flex: 0 0 auto;
  min-width: 22px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--flame);
}

.page-faq .qa-label {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15.5px, 1.8vw, 17px);
  line-height: 1.6;
  letter-spacing: .01em;
  color: var(--cream);
  transition: color .22s var(--ease);
}

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-top: 5px;
  transition: transform .26s var(--ease);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: var(--flame-hi);
  border-radius: 1px;
}

.page-faq .qa-mark::before {
  top: 7px;
  left: 0;
  width: 15px;
  height: 1.5px;
}

.page-faq .qa-mark::after {
  top: 0;
  left: 7px;
  width: 1.5px;
  height: 15px;
}

.page-faq .qa[open] .qa-mark {
  transform: rotate(45deg);
}

.page-faq .qa[open] .qa-label {
  color: #FFF3EA;
}

.page-faq .qa-a {
  padding: 0 clamp(0px, 4vw, 72px) 18px 34px;
}

.page-faq .qa-a p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-faq .qa-a a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-gold);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa-a a:hover,
.page-faq .qa-a a:focus-visible {
  color: #FFD98A;
  border-color: rgba(232, 176, 75, .72);
}

/* ---------- 两端差异插图 ---------- */
.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-figure .media-frame {
  max-width: 300px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--navy);
}

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

/* ---------- 底部咨询引导 ---------- */
.page-faq .faq-help {
  margin-top: clamp(40px, 6vw, 76px);
  padding: clamp(38px, 5.4vw, 70px) 0 clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--faq-line-gold);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 140% at 88% 6%, rgba(240, 78, 35, .18), rgba(240, 78, 35, 0) 62%),
    linear-gradient(158deg, rgba(16, 24, 43, .96), rgba(11, 14, 20, .99));
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.32;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-faq .faq-help__lead {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-faq .faq-help__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-group {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    column-gap: clamp(26px, 4vw, 66px);
    align-items: start;
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-faq .faq-group__lead {
    margin-top: 14px;
  }

  .page-faq .faq-list,
  .page-faq .faq-figure {
    margin-top: 0;
  }

  .page-faq .faq-figure {
    max-width: none;
  }

  .page-faq .faq-list {
    grid-column: 2;
  }

  .page-faq .faq-figure + .faq-list {
    margin-top: clamp(18px, 2.4vw, 26px);
  }

  .page-faq .faq-group--apps .faq-figure {
    grid-column: 2;
    justify-self: start;
  }

  .page-faq .faq-help__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-hero__title {
    max-width: none;
    font-size: 26px;
  }

  .page-faq .faq-hero__lead,
  .page-faq .faq-help__lead {
    font-size: 14.5px;
  }

  .page-faq .faq-banner .media-frame {
    aspect-ratio: 3 / 2;
    border-radius: var(--radius);
  }

  .page-faq .faq-list {
    padding-left: 12px;
  }

  .page-faq .qa-a {
    padding-left: 34px;
    padding-right: 0;
  }

  .page-faq .faq-figure .media-frame {
    max-width: 100%;
  }

  .page-faq .faq-help__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[data-reveal] {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .page-faq .qa-mark,
  .page-faq .qa-label,
  .page-faq .faq-chip {
    transition: none;
  }
}