.page-faq {
  --faq-gap: clamp(14px, 2.4vw, 28px);
  --faq-cyan-glow: rgba(53, 242, 192, .15);
  --faq-flame-glow: rgba(255, 90, 43, .14);
  --faq-body: #C9DED7;
  color: var(--ink);
  padding-bottom: clamp(56px, 9vw, 108px);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(14px, 2.6vw, 24px);
  padding: clamp(30px, 5vw, 64px) 0 clamp(26px, 4vw, 52px);
  border-top: var(--hairline);
  border-bottom: var(--hairline);
  background:
    radial-gradient(120% 92% at 88% 6%, var(--faq-cyan-glow), transparent 58%),
    radial-gradient(96% 76% at 4% 100%, var(--faq-flame-glow), transparent 62%);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(28, 58, 49, .6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 58, 49, .6) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: .42;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(120% 95% at 50% 45%, #000 32%, transparent 80%);
  mask-image: radial-gradient(120% 95% at 50% 45%, #000 32%, transparent 80%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__label {
  display: inline-block;
  color: var(--cyan);
  background: rgba(53, 242, 192, .1);
  border: 1px solid rgba(53, 242, 192, .35);
  padding: 4px 10px;
  border-radius: var(--radius);
}

.page-faq .faq-hero__title {
  font-family: var(--font-narrow);
  font-size: clamp(36px, 7vw, 78px);
  font-weight: 800;
  line-height: .98;
  letter-spacing: -.02em;
  margin: clamp(14px, 2vw, 22px) 0 clamp(16px, 2.2vw, 26px);
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-hero__side {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(12px, 2vw, 20px);
  border-left: 3px solid var(--cyan);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-faq .faq-hero__badge {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__badge-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(40px, 6vw, 62px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero__badge-txt {
  font-size: 14px;
  color: var(--faq-body);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__meta-row {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 快速索引 ---------- */

.page-faq .faq-quick {
  margin-top: clamp(30px, 4.6vw, 58px);
}

.page-faq .faq-quick__title {
  font-family: var(--font-narrow);
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 6px;
}

.page-faq .faq-quick__note {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-quick__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num desc";
  column-gap: 14px;
  row-gap: 4px;
  align-items: center;
  padding: clamp(14px, 2vw, 20px);
  text-decoration: none;
  color: var(--ink);
  background: var(--panel);
  border: 3px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-quick__link:hover,
.page-faq .faq-quick__link:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--cyan);
  background: #123027;
}

.page-faq .faq-quick__num {
  grid-area: num;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 17px;
  font-weight: 700;
  color: var(--bg);
  background: linear-gradient(150deg, var(--cyan), var(--score));
  border-radius: var(--radius);
}

.page-faq .faq-quick__name {
  grid-area: name;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .faq-quick__desc {
  grid-area: desc;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 关键词筛选 ---------- */

.page-faq .faq-filter {
  margin-top: clamp(24px, 3.4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-filter__label {
  color: var(--cyan);
  background: rgba(53, 242, 192, .12);
  padding: 5px 9px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.page-faq .faq-filter__input {
  flex: 1 1 240px;
  min-width: 0;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--panel);
  border: 3px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-filter__input::placeholder {
  color: var(--muted);
}

.page-faq .faq-filter__input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 192, .14);
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 42px);
  margin-top: clamp(26px, 4vw, 48px);
}

.page-faq .faq-rail {
  display: block;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--panel);
  border: 3px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-rail__label {
  display: block;
  margin: 0 0 12px;
  color: var(--cyan-soft);
  background: rgba(53, 242, 192, .1);
  padding: 4px 8px;
  border-radius: var(--radius);
}

.page-faq .faq-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--faq-body);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--ink);
  background: rgba(53, 242, 192, .08);
}

.page-faq .faq-rail__link[aria-current] {
  color: var(--bg);
  background: var(--cyan);
  border-left-color: var(--flame);
  font-weight: 700;
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .06em;
  opacity: .8;
}

.page-faq .faq-rail__cta {
  display: flex;
  justify-content: center;
  margin-top: 16px;
  width: 100%;
}

/* ---------- 分组 ---------- */

.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(34px, 5vw, 62px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 110px;
}

.page-faq .faq-group__head {
  position: relative;
  padding-left: clamp(0px, 1vw, 6px);
  border-bottom: 3px solid var(--line);
  padding-bottom: clamp(12px, 1.8vw, 18px);
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-faq .faq-group__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 46px;
  padding: 0 12px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--bg);
  background: linear-gradient(150deg, var(--cyan), var(--score));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-group__title {
  display: inline-block;
  margin: 12px 0 8px;
  font-family: var(--font-narrow);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.05;
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 插图 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: clamp(10px, 1.6vw, 16px);
  background: var(--panel);
  border: 3px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--radius) - 2px);
  object-fit: cover;
  background: rgba(28, 58, 49, .5);
}

.page-faq .faq-figure__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--muted);
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-acc {
  border-top: var(--hairline);
}

.page-faq .faq-item {
  border-bottom: var(--hairline);
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, rgba(53, 242, 192, .07), transparent 72%);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(14px, 2vw, 20px) 44px clamp(14px, 2vw, 20px) clamp(8px, 1.4vw, 14px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 650;
  line-height: 1.55;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan-soft);
}

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  width: 11px;
  height: 11px;
  margin-top: -9px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), margin-top var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: rotate(-135deg);
  margin-top: -2px;
  border-color: var(--flame);
}

.page-faq .faq-item__mark {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: .68em;
  background: var(--cyan);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--flame);
}

.page-faq .faq-item__text {
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-faq .faq-item__a {
  padding: 0 clamp(30px, 5vw, 54px) clamp(18px, 2.6vw, 26px) clamp(22px, 3vw, 32px);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--cyan);
  border-bottom: 1px solid rgba(53, 242, 192, .55);
}

/* ---------- 找人问 ---------- */

.page-faq .faq-help {
  margin-top: clamp(42px, 6vw, 84px);
  scroll-margin-top: 110px;
}

.page-faq .faq-help__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  padding: clamp(22px, 3.4vw, 42px);
}

.page-faq .faq-help__intro .label {
  display: inline-block;
  color: var(--flame);
  background: rgba(255, 90, 43, .13);
  padding: 4px 9px;
  border-radius: var(--radius);
}

.page-faq .faq-help__title {
  margin: 14px 0 10px;
  font-family: var(--font-narrow);
  font-size: clamp(24px, 3.6vw, 36px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.08;
}

.page-faq .faq-help__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-help__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-help__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 12px 14px;
  background: rgba(7, 19, 15, .68);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-help__key {
  flex: 0 0 auto;
  min-width: 66px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-help__val {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 15px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__copy {
  flex: 0 0 auto;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(6px, 1vw, 12px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-quick__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-group__head {
    padding-left: 0;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: clamp(36px, 4vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__link,
  .page-faq .faq-rail__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q::after,
  .page-faq .faq-filter__input {
    transition: none;
  }

  .page-faq .faq-quick__link:hover,
  .page-faq .faq-quick__link:focus-visible {
    transform: none;
  }
}