.page-faq {
  --faq-sec: clamp(44px, 7vw, 88px);
  --faq-gap: clamp(14px, 2.6vw, 24px);
  background: var(--void);
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq .container {
  padding-inline: clamp(18px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(36px, 6vw, 88px) 0 clamp(28px, 5vw, 60px);
  background:
    radial-gradient(120% 100% at 6% -12%, rgba(22, 224, 196, .22), transparent 58%),
    radial-gradient(92% 90% at 94% 2%, rgba(44, 107, 255, .28), transparent 62%),
    linear-gradient(180deg, var(--void-2), var(--void));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 92px 92px;
  opacity: .45;
  -webkit-mask-image: radial-gradient(72% 62% at 46% 18%, #000, transparent 82%);
  mask-image: radial-gradient(72% 62% at 46% 18%, #000, transparent 82%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -34%;
  width: 72%;
  height: 78%;
  z-index: -1;
  background: var(--grad-aurora);
  opacity: .16;
  clip-path: polygon(0 34%, 100% 0, 100% 100%, 0 100%);
  filter: blur(6px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(12px, 2vw, 18px);
  max-width: 880px;
}

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--slate);
}

.page-faq .faq-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.6vw, 58px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(14px, 1.8vw, 17px);
  line-height: 1.8;
  color: var(--mist);
  opacity: .84;
}

.page-faq .faq-facts {
  display: grid;
  gap: 12px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-facts li {
  padding-left: 13px;
  border-left: 2px solid var(--teal);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-facts strong {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .02em;
}

@media (min-width: 720px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 场景跳转胶囊 ---------- */
.page-faq .faq-jump {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(7, 11, 24, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-jump__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 11px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-jump__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--slate);
  text-decoration: none;
  transition: color .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  color: var(--void);
  background: var(--grad-aurora);
  border-color: transparent;
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-sec) 0;
  scroll-margin-top: 74px;
}

.page-faq .faq-group + .faq-group {
  border-top: 1px solid var(--line);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-group__no {
  display: block;
  font-size: clamp(36px, 7vw, 68px);
  line-height: .9;
  font-weight: 700;
  letter-spacing: -.04em;
  background: var(--grad-aurora);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-group h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-faq .faq-group__intro p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

@media (min-width: 860px) {
  .page-faq .faq-group__head {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3.5vw, 34px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
  overflow: hidden;
}

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

.page-faq .faq-figure--tall {
  max-width: 430px;
  margin: clamp(26px, 4vw, 44px) auto 0;
}

.page-faq .faq-figure .media__caption {
  display: block;
  padding: 10px 16px 12px;
  font-size: 12.5px;
  color: var(--slate);
  border-top: 1px solid var(--line);
}

/* ---------- 索引卡 ---------- */
.page-faq .index-grid {
  display: grid;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-faq .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .index-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  padding: 18px 18px 18px 22px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(26, 34, 56, .9), rgba(11, 18, 36, .72));
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}

.page-faq .index-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 3px;
  background: var(--grad-aurora);
  transition: top .3s var(--ease), bottom .3s var(--ease);
}

.page-faq .index-card:hover,
.page-faq .index-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(56, 245, 255, .42);
  background: linear-gradient(160deg, rgba(26, 34, 56, .98), rgba(11, 18, 36, .86));
  outline: none;
}

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

.page-faq .index-card:hover::before,
.page-faq .index-card:focus-visible::before {
  top: 0;
  bottom: 0;
}

.page-faq .index-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .index-card__no {
  font-size: 12px;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: .1em;
}

.page-faq .index-card__count {
  font-size: 12px;
  color: var(--slate);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
}

.page-faq .index-card__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .index-card__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
}

.page-faq .qa {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(26, 34, 56, .72), rgba(11, 18, 36, .55));
  overflow: hidden;
  transition: border-color .26s var(--ease), background .26s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(56, 245, 255, .38);
  background: linear-gradient(170deg, rgba(26, 34, 56, .96), rgba(11, 18, 36, .82));
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__no {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .qa__title {
  margin: 0;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--mist);
}

.page-faq .qa__icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: border-color .26s var(--ease);
}

.page-faq .qa[open] .qa__icon {
  border-color: var(--cyan);
}

.page-faq .qa__icon::before,
.page-faq .qa__icon::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1.5px;
  background: var(--teal);
  transform: translateY(-50%);
  transition: transform .26s var(--ease), opacity .26s var(--ease);
}

.page-faq .qa__icon::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .qa[open] .qa__icon::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa__body {
  display: grid;
  gap: 14px;
  padding: 0 16px 20px;
}

.page-faq .qa__symptom {
  margin: 0;
  padding: 9px 14px;
  border-left: 2px solid var(--coral);
  border-radius: 0 10px 10px 0;
  background: rgba(255, 111, 94, .09);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa__steps {
  counter-reset: step;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 32px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
  opacity: .92;
}

.page-faq .qa__steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: var(--void);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.page-faq .qa__steps > li::after {
  content: "";
  position: absolute;
  left: 9.5px;
  top: 27px;
  bottom: -13px;
  width: 1px;
  background: linear-gradient(var(--gold), rgba(255, 196, 107, 0));
}

.page-faq .qa__steps > li:last-child::after {
  content: none;
}

.page-faq .qa__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .qa__note a,
.page-faq .qa__steps a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 196, .4);
}

.page-faq .qa__note a:hover,
.page-faq .qa__note a:focus-visible,
.page-faq .qa__steps a:hover,
.page-faq .qa__steps a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 设置分组对照 ---------- */
.page-faq .setmap {
  display: grid;
  gap: 10px;
}

.page-faq .setmap__cell {
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
}

.page-faq .setmap__cell span {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--teal);
}

.page-faq .setmap__cell p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--slate);
}

@media (min-width: 620px) {
  .page-faq .setmap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .setmap {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 客服区 ---------- */
.page-faq .faq-service {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .contact-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(56, 245, 255, .26);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(44, 107, 255, .3), transparent 62%),
    linear-gradient(150deg, rgba(22, 224, 196, .16), rgba(26, 34, 56, .9));
}

.page-faq .contact-card__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .contact-card__line {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .contact-card__line a,
.page-faq .contact-card__line .mono {
  display: inline-block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(56, 245, 255, .5);
}

.page-faq .contact-card__line a:hover,
.page-faq .contact-card__line a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .contact-card__hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .contact-card__hint a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 196, .4);
}

.page-faq .contact-card .btn {
  margin-top: 4px;
  justify-content: center;
  text-align: center;
}

@media (min-width: 900px) {
  .page-faq .faq-service {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: start;
  }
}

/* ---------- 动效 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .42s var(--ease), transform .42s var(--ease);
}

.page-faq [data-reveal].is-visible,
.page-faq [data-reveal]:target {
  opacity: 1;
  transform: none;
}

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

  .page-faq .index-card,
  .page-faq .qa,
  .page-faq .qa__icon::before,
  .page-faq .qa__icon::after {
    transition: none;
  }
}