.page-faq {
  --faq-chip-border: rgba(231, 214, 164, .34);
  --faq-surface: rgba(18, 48, 40, .36);
  --faq-surface-hover: rgba(18, 48, 40, .62);
  --faq-surface-open: rgba(18, 48, 40, .74);
  --faq-hair: rgba(231, 214, 164, .14);
  --faq-text-soft: rgba(244, 238, 227, .82);
  display: block;
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(232, 54, 143, .07), transparent 62%),
    radial-gradient(700px 460px at 4% 12%, rgba(57, 225, 214, .05), transparent 60%);
}

.page-faq .faq-wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 28px var(--gutter) 88px;
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin: 26px 0 76px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.72rem, 5.4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.28;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 20em;
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-text-soft);
  max-width: 34em;
}

.page-faq .faq-hero__media {
  align-self: start;
  margin: 0;
}

/* ---------- 检索 ---------- */

.page-faq .faq-search {
  margin: 30px 0 18px;
}

.page-faq .faq-search__label {
  display: block;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 10px;
}

.page-faq .faq-search__box {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
  padding: 0 18px;
  border: var(--rule-strong);
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(6, 17, 14, .78), rgba(11, 31, 26, .54));
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-faq .faq-search__box:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(57, 225, 214, .16);
}

.page-faq .faq-search__icon {
  flex: none;
  width: 15px;
  height: 15px;
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
  position: relative;
  opacity: .9;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -5px;
  width: 8px;
  height: 1.5px;
  background: var(--cyan);
  transform: rotate(45deg);
  border-radius: 1px;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.4;
  padding: 0;
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(138, 154, 147, .8);
}

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 热门标签 ---------- */

.page-faq .faq-hot {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hot__chip {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--faq-chip-border);
  border-radius: 999px;
  color: var(--gold-sand);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-hot__chip:hover,
.page-faq .faq-hot__chip:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background-color: rgba(57, 225, 214, .08);
}

/* ---------- 分组容器 ---------- */

.page-faq .faq-groups {
  display: grid;
  gap: 60px;
}

.page-faq .faq-groups__lead {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
  padding-bottom: 14px;
  border-bottom: var(--rule);
}

.page-faq .faq-group {
  position: relative;
  padding-left: 20px;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--gold);
}

.page-faq .faq-group--b::before {
  background: var(--cyan);
}

.page-faq .faq-group--c::before {
  background: var(--gold-sand);
}

.page-faq .faq-group--d::before {
  background: var(--muted);
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-faq .faq-group--b .faq-group__num {
  color: var(--cyan);
}

.page-faq .faq-group--c .faq-group__num {
  color: var(--gold-sand);
}

.page-faq .faq-group--d .faq-group__num {
  color: var(--muted);
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 32em;
}

.page-faq .faq-group__list {
  display: grid;
  gap: 8px;
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-item {
  background: var(--faq-surface);
  border: 1px solid transparent;
  border-radius: 4px;
  transition: background-color var(--ease), border-color var(--ease);
}

.page-faq .faq-item:hover {
  background: var(--faq-surface-hover);
  border-color: rgba(201, 162, 39, .34);
}

.page-faq .faq-item[open] {
  background: var(--faq-surface-open);
  border-color: rgba(201, 162, 39, .5);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 15px 17px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--paper);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: 4px;
}

.page-faq .faq-item__q-text {
  flex: 1 1 auto;
  font-weight: 500;
}

.page-faq .faq-item__plus {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 5px;
  transition: transform var(--ease);
}

.page-faq .faq-item__plus::before,
.page-faq .faq-item__plus::after {
  content: "";
  position: absolute;
  background: var(--gold-sand);
  border-radius: 1px;
}

.page-faq .faq-item__plus::before {
  left: 0;
  top: 6.5px;
  width: 15px;
  height: 2px;
}

.page-faq .faq-item__plus::after {
  left: 6.5px;
  top: 0;
  width: 2px;
  height: 15px;
}

.page-faq .faq-item[open] .faq-item__plus {
  transform: rotate(135deg);
}

.page-faq .faq-item[open] .faq-item__plus::before,
.page-faq .faq-item[open] .faq-item__plus::after {
  background: var(--cyan);
}

.page-faq .faq-item__a {
  padding: 0 17px 17px;
  animation: faq-reveal var(--ease);
}

.page-faq .faq-item__a p {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-hair);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-text-soft);
  max-width: 36em;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 收藏与回访 ---------- */

.page-faq .faq-save {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 84px;
  padding: 32px 24px;
  border: var(--rule-strong);
  border-radius: 6px;
  background:
    linear-gradient(155deg, rgba(18, 48, 40, .74), rgba(6, 17, 14, .62));
}

.page-faq .faq-save__intro {
  margin: 14px 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-text-soft);
  max-width: 34em;
}

.page-faq .faq-save__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-save__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-text-soft);
}

.page-faq .faq-save__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.page-faq .faq-save__list strong {
  display: block;
  color: var(--paper);
  font-weight: 600;
  letter-spacing: .01em;
  margin-bottom: 3px;
}

.page-faq .faq-save__media {
  margin: 0;
  align-self: stretch;
}

/* ---------- 四步排查 ---------- */

.page-faq .faq-steps {
  margin-top: 88px;
}

.page-faq .faq-steps .section-head {
  margin-bottom: 30px;
}

.page-faq .faq-steps .section-title {
  color: var(--paper);
  max-width: 24em;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  counter-reset: faq-step;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 20px 22px 22px;
  border-left: 2px solid rgba(201, 162, 39, .42);
  background: rgba(11, 31, 26, .5);
  border-radius: 0 4px 4px 0;
  transition: border-color var(--ease), background-color var(--ease);
}

.page-faq .faq-step:hover {
  border-left-color: var(--cyan);
  background: rgba(18, 48, 40, .62);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
  margin-bottom: 12px;
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--faq-text-soft);
  max-width: 34em;
}

/* ---------- 联系客服 ---------- */

.page-faq .faq-help {
  margin-top: 88px;
}

.page-faq .faq-help__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding: 32px 24px;
  border-radius: 6px;
  background:
    linear-gradient(200deg, rgba(6, 17, 14, .92), rgba(18, 48, 40, .7));
  border: 1px solid rgba(232, 54, 143, .28);
}

.page-faq .faq-help__copy .section-title {
  color: var(--paper);
  margin-bottom: 16px;
}

.page-faq .faq-help__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-text-soft);
  max-width: 32em;
}

.page-faq .faq-help__copy .btn {
  margin-top: 8px;
}

.page-faq .faq-help__channels {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: start;
}

.page-faq .faq-help__row {
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-help__row:first-child {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-help__row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-faq .faq-help__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-help__row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 225, 214, .4);
  transition: border-color var(--ease), color var(--ease);
}

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

.page-faq .faq-help__aside {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 48em;
}

.page-faq .faq-help__aside a {
  color: var(--gold-sand);
  text-decoration: none;
  border-bottom: 1px solid rgba(231, 214, 164, .34);
  transition: color var(--ease), border-color var(--ease);
}

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

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-wrap {
    padding: 36px var(--gutter) 104px;
  }

  .page-faq .faq-save,
  .page-faq .faq-help__inner {
    padding: 40px 36px;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-item__q {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    padding: 0 20px 19px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
    margin-bottom: 96px;
  }

  .page-faq .faq-hero__media {
    margin-top: 26px;
  }

  .page-faq .faq-save {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }

  .page-faq .faq-groups {
    gap: 72px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-group {
    padding-left: 26px;
  }

  .page-faq .faq-group__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .page-faq .faq-group__head {
    max-width: 42em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__plus,
  .page-faq .faq-search__box,
  .page-faq .faq-hot__chip,
  .page-faq .faq-item,
  .page-faq .faq-step {
    transition: none;
  }
}