.page-faq {
  --faq-on-paper: #23303F;
  --faq-sticky-top: 0px;
}

@media (max-width: 1023px) {
  .page-faq {
    --faq-sticky-top: 54px;
  }
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: 18px 0 6px;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 20px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 14em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--body-text);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--body-text);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.page-faq .faq-hero__facts .mono {
  font-size: 15px;
  color: var(--gold);
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-top: 28px;
  }

  .page-faq .faq-hero__lead {
    font-size: 17.5px;
  }
}

/* ---------- 图片区 ---------- */

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

.page-faq .faq-figure .figure {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line-cool);
  border-radius: var(--r-card);
  overflow: hidden;
}

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

.page-faq .faq-figure .figure__caption {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

@media (min-width: 900px) {
  .page-faq .faq-figure .figure {
    aspect-ratio: 2 / 1;
  }
}

/* ---------- 吸顶分组标签 ---------- */

.page-faq .faq-tabs {
  position: sticky;
  top: var(--faq-sticky-top);
  z-index: 20;
  margin-top: 34px;
  padding: 10px 0;
  background: linear-gradient(to bottom, rgba(8, 17, 28, 0.94), rgba(8, 17, 28, 0.82));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tabs__inner {
  display: flex;
  gap: 8px;
  padding: 2px 0 4px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.page-faq .faq-tabs__inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line-cool);
  border-radius: 999px;
  background: rgba(244, 237, 224, 0.04);
  color: var(--body-text);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-tab .mono {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .faq-tab:hover {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.12);
  color: var(--paper);
}

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

/* ---------- 分组与问答卡 ---------- */

.page-faq .faq-body {
  padding-bottom: 72px;
}

.page-faq .faq-group {
  padding-top: 52px;
  scroll-margin-top: 122px;
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  max-width: 44em;
  margin-bottom: 22px;
}

.page-faq .faq-group__num {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 5.4vw, 34px);
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-faq .faq-card {
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--r-card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-faq .faq-item + .faq-item {
  border-top: 1px solid rgba(201, 162, 39, 0.34);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  list-style: none;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  transition: background-color 0.2s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  background: rgba(201, 162, 39, 0.11);
}

.page-faq .faq-item[open] > summary {
  background: rgba(201, 162, 39, 0.16);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}

.page-faq .faq-q {
  flex: 1 1 auto;
}

.page-faq .faq-item > summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  color: var(--ochre);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "－";
  color: var(--gold);
}

@media (min-width: 720px) {
  .page-faq .faq-item > summary {
    padding: 20px 26px;
    font-size: 17.5px;
  }
}

.page-faq .faq-answer {
  padding: 4px 18px 22px;
  background: rgba(201, 162, 39, 0.07);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--faq-on-paper);
}

@media (min-width: 720px) {
  .page-faq .faq-answer {
    padding: 6px 26px 26px;
    font-size: 16px;
  }
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
  max-width: 40em;
}

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

.page-faq .faq-answer a {
  color: var(--ochre);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-answer a:hover {
  color: var(--gold);
}

.page-faq .faq-answer .faq-verdict {
  margin: 0 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-steps {
  display: grid;
  gap: 9px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-on-paper);
  counter-increment: faqstep;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ochre);
}

.page-faq .faq-item[open] > .disclosure__body {
  animation: faq-answer-in 0.26s var(--ease) both;
}

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 报错章节的并排布局 ---------- */

.page-faq .faq-split {
  display: grid;
  gap: 24px;
}

.page-faq .faq-figure--side {
  margin: 0;
}

.page-faq .faq-figure--side .figure {
  aspect-ratio: 4 / 3;
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-help {
  display: grid;
  gap: 26px;
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(201, 162, 39, 0.14), transparent 62%),
    var(--ink-lift);
}

@media (min-width: 860px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
    padding: 32px;
  }
}

.page-faq .faq-checklist {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqcheck;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body-text);
  counter-increment: faqcheck;
}

.page-faq .faq-checklist li::before {
  content: counter(faqcheck, decimal-leading-zero);
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-faq .faq-contact {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-faq .faq-contact p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-contact .mono {
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact .faq-contact__label {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-faq .faq-contact .faq-contact__note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-contact .btn {
  justify-self: start;
  margin-top: 10px;
}

/* ---------- 动效与窄屏收尾 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] > .disclosure__body {
    animation: none;
  }

  .page-faq .faq-tab,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::after {
    transition: none;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-tabs {
    margin-top: 26px;
  }

  .page-faq .faq-group {
    padding-top: 42px;
  }

  .page-faq .faq-tab {
    font-size: 13px;
    padding: 8px 12px;
  }
}