.page-faq {
  --faq-num: clamp(38px, 5.6vw, 76px);
  --faq-ring: rgba(23, 224, 176, .55);
  --faq-amber-line: rgba(255, 176, 32, .55);
}

/* ============ 页头 ============ */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(30px, 4.6vw, 60px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 340px;
  background: linear-gradient(180deg, rgba(23, 224, 176, .09), transparent 78%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: clamp(70px, 10vw, 140px);
  right: -8%;
  width: min(38vw, 420px);
  height: 8px;
  background: var(--flare);
  opacity: .5;
  transform: skew(var(--skew));
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 34px);
  align-items: end;
  padding: clamp(10px, 2vw, 26px) 0 clamp(24px, 3.4vw, 42px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(27px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--ink);
  margin: 0 0 clamp(14px, 2.2vw, 24px);
  max-width: 14em;
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lede {
  max-width: 34em;
  margin: 0 0 clamp(20px, 2.8vw, 30px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__aside {
  display: none;
}

.page-faq .faq-hero__banner {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--layer);
}

.page-faq .faq-hero__banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(112deg, rgba(4, 21, 15, .72) 0%, rgba(4, 21, 15, .16) 48%, rgba(255, 75, 38, .14) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 600;
  object-fit: cover;
}

/* ============ 问答区布局 ============ */
.page-faq .faq-layout {
  align-items: start;
  row-gap: clamp(26px, 4vw, 48px);
}

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

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline-soft);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--t-fast), padding-left var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-index__link:hover {
  color: var(--neon-soft);
  padding-left: 6px;
}

.page-faq .faq-index__link.is-current,
.page-faq .faq-index__link[aria-current="true"] {
  color: var(--neon);
  border-bottom-color: rgba(23, 224, 176, .5);
}

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

.page-faq .faq-index__no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
}

/* ============ 分组 ============ */
.page-faq .faq-group {
  scroll-margin-top: 140px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 60px);
  padding-top: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 18px;
  align-items: start;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-group__num {
  font-family: var(--font-num);
  font-size: var(--faq-num);
  font-weight: 700;
  line-height: .78;
  letter-spacing: .02em;
  color: rgba(23, 224, 176, .16);
  -webkit-text-stroke: 1.4px var(--faq-ring);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ============ 折叠面板 ============ */
.page-faq .ba-fold {
  margin-bottom: 10px;
  border: 1px solid var(--hairline-soft);
  background: var(--glass);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-faq .ba-fold:hover {
  border-color: var(--hairline);
}

.page-faq .ba-fold[data-open] {
  background: var(--solid);
  border-color: var(--hairline);
}

.page-faq .ba-fold__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  border: 0;
  background: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-title);
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--ink);
  transition: color var(--t-fast);
}

.page-faq .ba-fold__trigger:hover {
  color: var(--neon-soft);
}

.page-faq .ba-fold__trigger:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: -2px;
}

.page-faq .faq-plus {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.page-faq .faq-plus::before,
.page-faq .faq-plus::after {
  content: "";
  position: absolute;
  background: var(--neon);
  transition: transform var(--t-slow), opacity var(--t-slow);
}

.page-faq .faq-plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-plus::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .ba-fold[data-open] .faq-plus::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .ba-fold__panel:not([hidden]) .ba-fold__inner {
  animation: faq-reveal var(--t-slow) both;
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .ba-fold__inner {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  overflow-wrap: break-word;
}

.page-faq .ba-fold__inner p {
  margin: 0 0 10px;
  max-width: 34em;
}

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

.page-faq .ba-fold__inner strong {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .ba-fold__inner a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 176, .45);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .ba-fold__inner a:hover {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

/* ============ 右侧竖排注释 ============ */
.page-faq .faq-rail {
  display: none;
}

/* ============ 费用与周期 ============ */
.page-faq .faq-cycle__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 52px);
  border: 1px solid var(--hairline);
  background: linear-gradient(158deg, var(--layer) 0%, rgba(16, 56, 42, .85) 100%);
}

.page-faq .faq-cycle__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 132px;
  height: 4px;
  background: var(--flare);
}

.page-faq .faq-cycle__title {
  margin: 8px 0 14px;
  font-size: clamp(22px, 3vw, 34px);
}

.page-faq .faq-cycle__lede {
  margin: 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-cycle__lede a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 176, .45);
}

.page-faq .faq-cycle__list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-cycle__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hairline-soft);
}

.page-faq .faq-cycle__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-cycle__k {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-cycle__item p {
  margin: 0;
  max-width: 32em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-cycle__figure {
  margin: clamp(22px, 3vw, 0) 0 0;
  border: 1px solid var(--hairline);
  background: var(--night);
}

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

/* ============ 内容范围 ============ */
.page-faq .faq-scope__title {
  margin: 8px 0 12px;
  font-size: clamp(22px, 3vw, 34px);
}

.page-faq .faq-scope__lede {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-scope__grid {
  margin-top: clamp(22px, 3vw, 36px);
  row-gap: clamp(22px, 3vw, 32px);
}

.page-faq .faq-stat {
  padding-top: 16px;
  border-top: 2px solid var(--hairline);
}

.page-faq .faq-stat__num {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: .01em;
  color: var(--neon);
}

.page-faq .faq-stat__unit {
  margin-left: 6px;
  font-size: .38em;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-faq .faq-stat__label {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-stat__desc {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ============ 咨询兜底 ============ */
.page-faq .faq-help__card {
  padding: clamp(22px, 3.6vw, 44px);
  border: 1px solid var(--hairline);
  background: var(--glass);
}

.page-faq .faq-help__title {
  margin: 8px 0 14px;
  font-size: clamp(22px, 3vw, 32px);
}

.page-faq .faq-help__lede {
  margin: 0 0 12px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-help__lede a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 176, .45);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-help__lede a:hover {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-help__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline-soft);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-faq .faq-help__k {
  flex: 0 0 auto;
  min-width: 68px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-faq .faq-help__tel {
  font-family: var(--font-num);
  letter-spacing: .04em;
}

.page-faq .ba-copy {
  padding: 0 0 2px;
  border: 0;
  border-bottom: 1px dashed rgba(23, 224, 176, .5);
  background: none;
  font: inherit;
  color: var(--neon);
  text-align: left;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .ba-copy:hover {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

.page-faq .ba-copy:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 3px;
}

.page-faq .ba-copy[data-copied] {
  color: var(--amber);
  border-bottom-color: var(--faq-amber-line);
}

/* ============ 桌面增强 ============ */
@media (min-width: 901px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }

  .page-faq .faq-hero__aside {
    display: block;
    justify-self: end;
    max-width: 230px;
    padding-left: 16px;
    border-left: 2px solid var(--faq-amber-line);
  }

  .page-faq .faq-hero__aside-mark {
    margin: 0 0 12px;
    font-family: var(--font-num);
    font-size: 11px;
    line-height: 1.9;
    letter-spacing: .3em;
    color: var(--neon-soft);
  }

  .page-faq .faq-hero__aside-note {
    margin: 0;
    font-size: 12px;
    line-height: 1.8;
    color: var(--muted);
  }

  .page-faq .faq-rail {
    display: flex;
    justify-content: flex-end;
    align-self: stretch;
  }

  .page-faq .faq-rail__mark {
    writing-mode: vertical-rl;
    padding-top: 4px;
    font-family: var(--font-num);
    font-size: 11px;
    letter-spacing: .42em;
    text-transform: uppercase;
    color: rgba(143, 169, 160, .55);
  }

  .page-faq .faq-cycle__figure {
    margin-top: 0;
  }
}

/* ============ 窄屏 ============ */
@media (max-width: 900px) {
  .page-faq .faq-layout {
    display: block;
  }

  .page-faq .faq-layout > * + * {
    margin-top: clamp(24px, 4vw, 36px);
  }

  .page-faq .faq-index__inner {
    position: static;
  }

  .page-faq .faq-index__list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-top: 0;
  }

  .page-faq .faq-index__link {
    align-items: center;
    padding: 8px 12px;
    border: 1px solid var(--hairline);
    font-size: 13px;
  }

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

  .page-faq .faq-group__num {
    font-size: 38px;
  }

  .page-faq .faq-cycle__figure {
    margin-top: clamp(22px, 3vw, 32px);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-hero::after {
    display: none;
  }

  .page-faq .faq-group__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .faq-group__num {
    font-size: 32px;
    -webkit-text-stroke-width: 1px;
  }

  .page-faq .ba-fold__trigger,
  .page-faq .ba-fold__inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .page-faq .faq-cycle__item {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-help__list li {
    flex-direction: column;
    gap: 4px;
  }

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