.page-faq {
  --faq-hair: 1px solid var(--sand-line);
  --faq-ease: cubic-bezier(.22, .61, .36, 1);
  background: var(--sand);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(56px, 8vw, 112px);
  background: linear-gradient(155deg, var(--danxia) 0%, var(--danxia-deep) 52%, var(--pitch) 100%);
  color: var(--sand);
}

.page-faq .faq-hero-tex {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .22;
  pointer-events: none;
  z-index: 1;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 2;
}

.page-faq .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .02em;
}

.page-faq .crumb {
  color: rgba(244, 238, 226, .76);
  text-decoration: none;
}

.page-faq .crumb:hover {
  color: var(--gold-light);
}

.page-faq .crumb-sep {
  color: rgba(244, 238, 226, .42);
}

.page-faq .crumb-current {
  color: var(--gold-light);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-hero .eyebrow {
  color: var(--gold-light);
  letter-spacing: .16em;
  font-size: 12px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -.02em;
}

.page-faq .faq-hero .lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.8;
  color: rgba(244, 238, 226, .88);
}

.page-faq .faq-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-legend li {
  padding: 6px 11px;
  border: 1px solid rgba(244, 238, 226, .4);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold-light);
}

.page-faq .faq-shot {
  margin: 0;
  border: 1px solid rgba(244, 238, 226, .24);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(13, 26, 43, .35);
}

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-hero-links {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(244, 238, 226, .2);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 238, 226, .76);
  max-width: 46em;
}

.page-faq .faq-hero-links a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 203, 121, .5);
}

.page-faq .faq-hero-links a:hover {
  border-bottom-color: var(--gold-light);
}

/* ---------- 场景区 ---------- */
.page-faq .faq-scenes {
  padding: clamp(56px, 8vw, 112px) 0;
}

.page-faq .faq-scenes-head {
  max-width: 44rem;
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-faq .faq-scenes-head .eyebrow {
  color: var(--eyebrow-color);
  letter-spacing: .16em;
  font-size: 12px;
}

.page-faq .faq-scenes-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.14;
  letter-spacing: -.02em;
}

.page-faq .faq-scenes-sub {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-tabs {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-tablist {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-tab {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  border: 0;
  border-left: 3px solid var(--sand-line);
  background: transparent;
  text-align: left;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  cursor: pointer;
  transition: background 160ms var(--faq-ease), border-color 160ms var(--faq-ease);
}

.page-faq .faq-tablist .faq-tab:nth-child(1) { --faq-accent: var(--danxia); }
.page-faq .faq-tablist .faq-tab:nth-child(2) { --faq-accent: var(--pitch); }
.page-faq .faq-tablist .faq-tab:nth-child(3) { --faq-accent: var(--indigo); }
.page-faq .faq-tablist .faq-tab:nth-child(4) { --faq-accent: var(--wine); }

.page-faq .faq-tab:hover {
  background: rgba(169, 52, 28, .06);
}

.page-faq .faq-tab[aria-selected="true"] {
  border-left-color: var(--faq-accent);
  background: rgba(169, 52, 28, .08);
}

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

.page-faq .faq-tab-num {
  padding-top: 3px;
  font-size: 12px;
  color: var(--ink-mute);
}

.page-faq .faq-tab-text {
  display: block;
  min-width: 0;
}

.page-faq .faq-tab-name {
  display: block;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -.01em;
}

.page-faq .faq-tab-desc {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-mute);
}

.page-faq .faq-panels {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 56px);
  min-width: 0;
}

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

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .faq-panel:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 8px;
}

.page-faq .faq-panel-title {
  margin: 0 0 20px;
  padding-left: 14px;
  border-left: 4px solid var(--faq-accent, var(--danxia));
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.4;
  letter-spacing: -.01em;
}

.page-faq .faq-item {
  margin: 0 0 10px;
  border: var(--faq-hair);
  border-left: 3px solid var(--faq-accent, var(--danxia));
  background: rgba(255, 255, 255, .62);
  transition: background 160ms var(--faq-ease), box-shadow 160ms var(--faq-ease);
}

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

.page-faq .faq-item[open] {
  background: rgba(255, 255, 255, .94);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  font-weight: 600;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-marker {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-marker::before,
.page-faq .faq-marker::after {
  content: "";
  position: absolute;
  background: var(--faq-accent, var(--danxia));
  transition: transform 180ms var(--faq-ease), opacity 180ms var(--faq-ease);
}

.page-faq .faq-marker::before {
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
}

.page-faq .faq-marker::after {
  top: 0;
  bottom: 0;
  left: 7px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-marker::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  margin: 0 18px 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--sand-line);
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-a .mono {
  color: var(--danxia);
  font-weight: 600;
}

/* ---------- 纠错步骤 ---------- */
.page-faq .faq-fix {
  padding: clamp(48px, 7vw, 100px) 0;
  background: var(--pitch);
  color: var(--sand);
}

.page-faq .faq-fix .eyebrow {
  color: var(--gold);
  letter-spacing: .16em;
  font-size: 12px;
}

.page-faq .faq-fix h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--sand);
}

.page-faq .faq-steps {
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  background: rgba(244, 238, 226, .24);
}

.page-faq .faq-step {
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--pitch);
}

.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--gold);
}

.page-faq .faq-step h3 {
  margin: 16px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--sand);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 238, 226, .78);
}

.page-faq .faq-fix-note {
  margin: 28px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 238, 226, .8);
}

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

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

.page-faq .faq-ghost-link {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border: 1px solid rgba(240, 203, 121, .6);
  border-radius: var(--radius);
  color: var(--gold-light);
  font-size: 14px;
  letter-spacing: .02em;
  text-decoration: none;
  transition: background 160ms var(--faq-ease), color 160ms var(--faq-ease);
}

.page-faq .faq-ghost-link:hover {
  background: rgba(240, 203, 121, .16);
  color: var(--sand);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  padding: clamp(52px, 8vw, 112px) 0;
  background: var(--night);
  color: var(--sand);
}

.page-faq .faq-help-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-help .eyebrow {
  color: var(--gold);
  letter-spacing: .16em;
  font-size: 12px;
}

.page-faq .faq-help h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--sand);
}

.page-faq .faq-help-intro {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 238, 226, .84);
}

.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
}

.page-faq .faq-contact .contact-item {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid rgba(217, 164, 65, .5);
}

.page-faq .faq-contact .contact-label {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(244, 238, 226, .6);
}

.page-faq .faq-contact .contact-value {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 20px);
  line-height: 1.5;
  color: var(--sand);
  word-break: break-word;
}

.page-faq .faq-contact .contact-value.mono {
  font-family: var(--font-mono);
  letter-spacing: -.01em;
}

.page-faq .faq-help-note {
  margin: 22px 0 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 238, 226, .78);
}

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

.page-faq .faq-help-actions {
  margin: 28px 0 0;
}

.page-faq .faq-shot--tall {
  border-color: rgba(244, 238, 226, .18);
  background: rgba(13, 26, 43, .5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
  }

  .page-faq .faq-hero-links {
    margin-top: clamp(36px, 5vw, 60px);
  }

  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-tabs {
    grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-tablist {
    position: sticky;
    top: calc(var(--cmd-h) + 20px);
  }

  .page-faq .faq-tab-desc {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-marker::before,
  .page-faq .faq-marker::after,
  .page-faq .faq-ghost-link {
    transition: none;
  }
}
</main>