.page-faq {
  --faq-max: 900px;
  --faq-shadow: 0 18px 40px rgba(2, 10, 18, .38);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 6vw, 68px) 0 clamp(24px, 5vw, 52px);
  background:
    linear-gradient(160deg, rgba(12, 44, 74, .82) 0%, rgba(6, 26, 46, .2) 68%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(54vw, 500px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, rgba(34, 231, 214, .16), rgba(34, 231, 214, 0) 62%);
  transform: rotate(22deg);
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__kicker {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 6px 0 0;
  font-family: var(--font-head);
  font-size: clamp(42px, 11vw, 92px);
  font-weight: 800;
  line-height: .94;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  max-width: 40em;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__links a {
  display: inline-block;
  padding: 8px 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 243, 236, .28);
  transition: color .2s, border-color .2s;
}

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

/* ---------- 分类索引带 ---------- */
.page-faq .faq-filter {
  padding: 16px 0 18px;
  background: var(--night);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.page-faq .faq-filter__hint {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-faint);
}

.page-faq .faq-filter .chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 问答长列表 ---------- */
.page-faq .faq-stream-section {
  padding: clamp(22px, 5vw, 52px) 0 clamp(48px, 9vw, 96px);
}

.page-faq .faq-stream {
  max-width: var(--faq-max);
  border-top: 1px solid var(--rule-soft);
}

.page-faq .qa {
  border-bottom: 1px solid var(--rule-soft);
}

.page-faq .qa__item {
  display: block;
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__cat {
  flex: 0 0 auto;
  margin-top: 3px;
}

.page-faq .qa__text {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--ink);
}

.page-faq .qa__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 4px;
  border: 1px solid var(--rule);
  border-radius: 50%;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .qa__sign::before {
  width: 10px;
  height: 1px;
}

.page-faq .qa__sign::after {
  width: 1px;
  height: 10px;
  transition: opacity .2s ease;
}

.page-faq .qa__item[open] .qa__sign::after {
  opacity: 0;
}

.page-faq .qa__item[open] .qa__q {
  border-left: 0;
  color: var(--ink);
}

.page-faq .qa__a {
  margin: 0 0 24px 2px;
  padding: 2px 0 0 16px;
  border-left: 2px solid var(--cyan);
}

.page-faq .qa__a p {
  max-width: 40em;
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

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

.page-faq .qa__a ul {
  max-width: 40em;
  margin: 0 0 12px;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .qa__a li::marker {
  color: var(--cyan);
}

.page-faq .qa__a .media-frame {
  margin: 0 0 16px;
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  max-width: 40em;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .steps li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 34px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  counter-increment: faqstep;
}

.page-faq .steps li:last-child {
  margin-bottom: 0;
}

.page-faq .steps li::before {
  content: counter(faqstep);
  position: absolute;
  top: 2px;
  left: 0;
  width: 22px;
  height: 22px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  font-family: var(--font-num);
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  color: var(--cyan);
}

/* ---------- 费用构成信息图 ---------- */
.page-faq .fee-figure {
  margin: 4px 0 18px;
  padding: 18px 16px 14px;
  background: var(--paper);
  border-top: 3px solid var(--clay);
  box-shadow: var(--faq-shadow);
}

.page-faq .fee-figure__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin-bottom: 16px;
}

.page-faq .fee-figure__key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #40525e;
}

.page-faq .fee-figure__track {
  display: block;
  height: 12px;
  background: rgba(6, 26, 46, .1);
  overflow: hidden;
}

.page-faq .fee-figure__fill {
  display: block;
  height: 100%;
}

.page-faq .fee-figure__fill--single {
  width: 30%;
  background: linear-gradient(90deg, #0f8f86, var(--cyan));
}

.page-faq .fee-figure__fill--season {
  width: 100%;
  background: linear-gradient(90deg, #b8862c, var(--gold));
}

.page-faq .fee-figure__val {
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  color: #10202c;
}

.page-faq .fee-figure__note {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: #5c6b74;
}

/* ---------- 通栏横幅 ---------- */
.page-faq .faq-banner {
  margin: clamp(20px, 4vw, 40px) 0;
}

.page-faq .faq-banner__cap {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-faint);
}

/* ---------- 联系信息 ---------- */
.page-faq .contact-panel {
  margin: 4px 0 14px;
  padding: 16px;
  background: var(--night);
  border-left: 3px solid var(--cyan);
}

.page-faq .contact-panel__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  margin-bottom: 8px;
}

.page-faq .contact-panel__row:last-child {
  margin-bottom: 0;
}

.page-faq .contact-panel__label {
  min-width: 64px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-faint);
}

.page-faq .contact-panel__value {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--mist);
  word-break: break-all;
}

/* ---------- 空态 ---------- */
.page-faq .faq-empty {
  max-width: var(--faq-max);
  margin: 24px 0 0;
  padding: 20px 18px;
  border: 1px dashed var(--rule);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-faint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .qa__q {
    gap: 18px;
    padding: 22px 0;
  }

  .page-faq .qa__text {
    font-size: 19px;
  }

  .page-faq .qa__a {
    padding-left: 22px;
  }

  .page-faq .qa__a p,
  .page-faq .qa__a ul,
  .page-faq .steps li {
    font-size: 16.5px;
  }

  .page-faq .fee-figure {
    padding: 22px 24px 18px;
  }

  .page-faq .fee-figure__row {
    grid-template-columns: 96px 1fr 100px;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
  }

  .page-faq .fee-figure__val {
    text-align: right;
  }

  .page-faq .contact-panel {
    padding: 18px 22px;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-hero {
    padding-bottom: clamp(36px, 5vw, 64px);
  }

  .page-faq .qa__text {
    font-size: 20px;
  }

  .page-faq .qa__a p,
  .page-faq .qa__a ul,
  .page-faq .steps li {
    font-size: 17px;
  }

  .page-faq .faq-banner {
    max-width: 1000px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__sign::after,
  .page-faq .faq-hero__links a {
    transition: none;
  }
}