.page-faq {
  --faq-line-light: rgba(22, 57, 111, .16);
  --faq-body: #33415A;
  --faq-accent: var(--accent);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 var(--s-1);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .crumbs__link {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .crumbs__link:hover {
  color: var(--white);
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: '/';
  margin-right: 8px;
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-block: var(--s-2) var(--s-3);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-intro {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.4vw, 42px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(232, 84, 42, .20), transparent 58%),
    linear-gradient(158deg, var(--ink-800), var(--ink-900));
}

.page-faq .faq-intro::after {
  content: '';
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 208, .18), transparent 70%);
  pointer-events: none;
}

.page-faq .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--accent-hi);
}

.page-faq .faq-intro h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-faq .faq-intro .lede {
  margin: 0;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: var(--s-1) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-index {
  display: grid;
  gap: 10px;
}

.page-faq .faq-idx {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(22, 57, 111, .62), rgba(13, 42, 86, .5));
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-faq .faq-idx:hover,
.page-faq .faq-idx:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.page-faq .faq-idx__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-hi);
}

.page-faq .faq-idx__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-idx__title {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-idx__meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-idx__dot {
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-radius: 50%;
  background: var(--state);
  flex: none;
}

/* ---------- 平板观战 ---------- */

.page-faq .faq-tablet {
  padding-block: var(--s-3);
}

.page-faq .faq-tablet__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-2);
  align-items: center;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .faq-tablet__lede h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .faq-tablet__lede p {
  margin: 0;
  max-width: 46ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-faq .faq-track {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin-top: var(--s-1);
}

.page-faq .faq-steps {
  list-style: none;
  margin: var(--s-3) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 58px;
}

.page-faq .faq-step::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 42px;
  bottom: -18px;
  width: 1px;
  background: var(--line-soft);
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step__badge {
  position: absolute;
  left: 0;
  top: 0;
  width: 41px;
  height: 41px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--white);
}

.page-faq .faq-step:first-child .faq-step__badge {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

.page-faq .faq-step__title {
  margin: 6px 0 6px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}

.page-faq .faq-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.page-faq .faq-tablet__qa {
  display: grid;
  gap: 10px;
  margin-top: var(--s-3);
}

/* ---------- 折叠问答通用 ---------- */

.page-faq .faq-q {
  border: 1px solid var(--faq-line-light);
  border-radius: var(--r-md);
  background: var(--white);
  overflow: hidden;
}

.page-faq .faq-q__sum {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 16px 18px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-dark);
  list-style: none;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q__sum::after {
  content: '+';
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.3;
  color: var(--accent);
  flex: none;
}

.page-faq .faq-q[open] .faq-q__sum::after {
  content: '\2212';
}

.page-faq .faq-q__body {
  margin: 0 18px 18px;
  padding: 0 0 0 14px;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-q[open] .faq-q__body {
  border-left-color: var(--state);
}

.page-faq .faq-q__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--faq-body);
}

/* 深色底上的问答 */

.page-faq .faq-q--dark {
  border-color: var(--line-soft);
  background: rgba(13, 42, 86, .55);
}

.page-faq .faq-q--dark .faq-q__sum {
  color: var(--white);
}

.page-faq .faq-q--dark .faq-q__body p {
  color: var(--muted);
}

/* ---------- 浅色问答区 ---------- */

.page-faq .faq-faqs {
  padding-block: var(--s-3);
  color: var(--text-dark);
}

.page-faq .faq-faqs .eyebrow {
  color: var(--accent);
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--s-3);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-light);
}

.page-faq .faq-group__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(21px, 2.8vw, 28px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text-dark);
}

.page-faq .faq-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #6C7C99;
}

.page-faq .faq-group .faq-q + .faq-q {
  margin-top: 10px;
}

.page-faq .faq-figure--inline {
  margin: 0 0 16px;
  border-color: var(--faq-line-light);
  border-radius: var(--r-lg);
  background: var(--paper);
}

.page-faq .faq-figure--inline figcaption {
  padding: 12px 18px 14px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #5A6A85;
  background: var(--white);
  border-top: 1px solid var(--faq-line-light);
}

/* ---------- 联系 ---------- */

.page-faq .faq-help {
  padding-block: var(--s-3);
}

.page-faq .faq-help__card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-2);
  padding: clamp(24px, 3.4vw, 44px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 120% at 0% 100%, rgba(34, 211, 208, .14), transparent 60%),
    linear-gradient(150deg, rgba(22, 57, 111, .9), rgba(7, 22, 51, .94));
}

.page-faq .faq-help__text h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.22;
  color: var(--white);
}

.page-faq .faq-help__text p {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
}

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

.page-faq .faq-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(13, 42, 86, .6);
}

.page-faq .faq-channel + .faq-channel {
  margin-top: 10px;
}

.page-faq .faq-channel__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--state);
}

.page-faq .faq-channel__value {
  flex: 1 1 180px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-help__note a {
  color: var(--accent-hi);
  text-decoration: none;
}

.page-faq .faq-help__note a:hover {
  text-decoration: underline;
}

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--gap);
    row-gap: 26px;
  }

  .page-faq .faq-step::before {
    display: none;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
  }

  .page-faq .faq-tablet__top {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: var(--s-3);
  }

  .page-faq .faq-tablet__qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--gap);
  }

  .page-faq .faq-help__card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: var(--s-3);
  }
}

@media (max-width: 460px) {
  .page-faq .faq-idx {
    padding: 14px 15px;
    gap: 11px;
  }

  .page-faq .faq-step {
    padding-left: 50px;
  }

  .page-faq .faq-step__badge {
    width: 36px;
    height: 36px;
    font-size: 13px;
  }

  .page-faq .faq-step::before {
    left: 17px;
    top: 38px;
  }

  .page-faq .faq-group__count {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-idx,
  .page-faq .faq-q__sum,
  .page-faq .faq-q__body,
  .page-faq .crumbs__link {
    transition: none;
  }

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