.page-faq {
  --faq-index-w: 300px;
  --faq-rule: rgba(20, 17, 14, .12);
}

/* ---------- 页首横幅 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  border-bottom: 1px solid var(--gold-line);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg,
      rgba(11, 43, 34, .96) 0%,
      rgba(11, 43, 34, .84) 44%,
      rgba(11, 43, 34, .38) 100%);
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% 50%;
  filter: saturate(.68) brightness(.72);
}

.page-faq .faq-hero__body {
  position: relative;
  padding-top: clamp(44px, 8vw, 88px);
  padding-bottom: clamp(48px, 9vw, 100px);
}

.page-faq .faq-hero__body .eyebrow {
  margin: 22px 0 0;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper-100);
  text-shadow: 0 1px 0 rgba(200, 162, 74, .35);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  color: var(--paper-200);
  max-width: 60ch;
  margin: 18px 0 0;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

/* ---------- 高频快答带 ---------- */
.page-faq .faq-quick__head {
  margin-bottom: 24px;
}

.page-faq .faq-quick__head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper-100);
  margin: 10px 0 6px;
}

.page-faq .faq-quick__hint {
  margin: 0;
  font-size: 14px;
  color: var(--mist-400);
}

.page-faq .faq-quick__rail {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 6px 2px 22px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--brass-700) transparent;
}

.page-faq .faq-quick__rail::-webkit-scrollbar {
  height: 6px;
}

.page-faq .faq-quick__rail::-webkit-scrollbar-thumb {
  background: var(--brass-700);
  border-radius: 99px;
}

.page-faq .quick-card {
  flex: 0 0 auto;
  width: 236px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 20px 22px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: linear-gradient(162deg, rgba(30, 95, 78, .5) 0%, rgba(11, 43, 34, .88) 100%);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .quick-card:nth-child(2n) {
  width: 286px;
}

.page-faq .quick-card:nth-child(3) {
  width: 258px;
}

.page-faq .quick-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold-line);
}

.page-faq .quick-card__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-500);
}

.page-faq .quick-card__q {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper-100);
}

.page-faq .quick-card__a {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist-400);
}

/* ---------- 双列主体 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-faq .faq-index__item {
  border-left: 2px solid var(--line-300);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-within {
  border-color: var(--gold-500);
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 10px;
  padding: 12px 12px 14px 16px;
  text-decoration: none;
  color: inherit;
  border-radius: 0 10px 10px 0;
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover {
  background: var(--paper-200);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--brass-700);
}

.page-faq .faq-index__label {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text-900);
}

.page-faq .faq-index__count {
  grid-column: 2;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--brass-700);
}

.page-faq .faq-index__foot {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-rule);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .faq-index__foot a {
  color: var(--crimson-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分类与问答 ---------- */
.page-faq .faq-cat {
  scroll-margin-top: calc(var(--bar-h) + 26px);
}

.page-faq .faq-cat + .faq-cat {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-bottom: 22px;
}

.page-faq .faq-cat__mark {
  flex: 0 0 auto;
  align-self: center;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 4px rgba(200, 162, 74, .18);
}

.page-faq .faq-cat__mark--crimson {
  background: var(--crimson-600);
  box-shadow: 0 0 0 4px rgba(142, 36, 52, .16);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text-900);
}

.page-faq .faq-cat__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--brass-700);
}

.page-faq .faq-figure {
  margin: 0 0 24px;
}

.page-faq .qa {
  border: 1px solid var(--faq-rule);
  border-radius: 12px;
  background: rgba(255, 255, 255, .58);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 12px;
}

.page-faq .qa[open] {
  border-color: var(--gold-line);
  box-shadow: var(--shadow-card);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-900);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--ink-700);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -3px;
  border-radius: 12px;
}

.page-faq .qa__dot {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 1px solid var(--brass-700);
  border-radius: 50%;
  transition: transform var(--dur) var(--ease),
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-faq .qa__dot::before,
.page-faq .qa__dot::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--brass-700);
  transition: background var(--dur) var(--ease);
}

.page-faq .qa__dot::before {
  width: 10px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__dot::after {
  width: 1.5px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .qa[open] .qa__dot {
  transform: rotate(45deg);
  background: var(--gold-500);
  border-color: var(--gold-500);
}

.page-faq .qa[open] .qa__dot::before,
.page-faq .qa[open] .qa__dot::after {
  background: var(--ink-900);
}

.page-faq .qa__text {
  padding-top: 1px;
}

.page-faq .qa__a {
  padding: 0 20px 20px 56px;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-900);
}

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

.page-faq .qa__a a {
  color: var(--crimson-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 12px 0 10px;
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--gold-line);
  display: grid;
  gap: 10px;
}

.page-faq .qa-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-900);
}

.page-faq .qa-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brass-700);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help__card {
  padding: 26px 24px 28px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: linear-gradient(150deg, var(--ink-700) 0%, var(--ink-900) 100%);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-help__split {
  display: grid;
  gap: 22px;
}

.page-faq .faq-help__col h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--gold-300);
}

.page-faq .faq-help__col p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-200);
}

.page-faq .faq-help__label {
  margin: 26px 0 0;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist-400);
}

.page-faq .qa-steps--help {
  margin-top: 14px;
  border-left-color: var(--gold-500);
}

.page-faq .qa-steps--help li {
  color: var(--paper-100);
}

.page-faq .qa-steps--help li::before {
  color: var(--gold-300);
}

.page-faq .faq-help__note {
  margin: 16px 0 22px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper-200);
}

.page-faq .faq-help__note a {
  color: var(--gold-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  border-top: 1px solid var(--gold-line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }

  .page-faq .faq-help__split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-hero__body {
    padding-top: 30px;
  }

  .page-faq .faq-hero h1 {
    font-size: 30px;
    max-width: none;
  }

  .page-faq .quick-card,
  .page-faq .quick-card:nth-child(2n),
  .page-faq .quick-card:nth-child(3) {
    width: 82%;
    min-width: 216px;
  }

  .page-faq .qa__q {
    gap: 12px;
    padding: 14px 14px;
    font-size: 16px;
  }

  .page-faq .qa__dot {
    width: 22px;
    height: 22px;
  }

  .page-faq .qa__a {
    padding: 0 14px 16px 50px;
  }

  .page-faq .qa-steps {
    padding-left: 12px;
  }

  .page-faq .qa-steps li {
    padding-left: 30px;
  }

  .page-faq .faq-help__card {
    padding: 20px 16px 22px;
  }

  .page-faq .faq-cat + .faq-cat {
    margin-top: 40px;
    padding-top: 34px;
  }
}