.page-faq {
  --faq-radius: 22px;
  --faq-radius-sm: 16px;
  --faq-accent: var(--pulse);
  display: block;
  padding-bottom: clamp(24px, 5vw, 48px);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-space) + 18px);
}

.page-faq [data-accent="pulse"] {
  --accent: var(--pulse);
}

.page-faq [data-accent="violet"] {
  --accent: var(--violet);
}

.page-faq [data-accent="orange"] {
  --accent: var(--orange);
}

.page-faq [data-accent="clay"] {
  --accent: var(--clay);
}

.page-faq [data-accent="rock"] {
  --accent: var(--rock);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(18px, 4vw, 32px) 0 clamp(40px, 7vw, 68px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  left: -26%;
  width: 92%;
  height: 96%;
  z-index: -1;
  background:
    radial-gradient(58% 58% at 34% 42%, rgba(198, 255, 61, 0.10), transparent 72%),
    radial-gradient(52% 52% at 84% 22%, rgba(123, 77, 255, 0.13), transparent 74%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "FAQ";
  position: absolute;
  top: -0.02em;
  right: -0.06em;
  z-index: -1;
  font-family: var(--font-mono);
  font-size: clamp(120px, 36vw, 330px);
  font-weight: 700;
  line-height: 0.78;
  letter-spacing: -0.05em;
  color: rgba(198, 255, 61, 0.05);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 0;
  padding: 7px 16px 7px 12px;
  border: 1px solid var(--pulse-line);
  border-radius: var(--radius-pill);
  background: rgba(198, 255, 61, 0.06);
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.08em;
  color: var(--pulse);
}

.page-faq .faq-title {
  margin: 16px 0 18px;
  max-width: 15em;
  font-size: clamp(34px, 8.2vw, 74px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-faq .faq-lead {
  max-width: 60ch;
  margin: 0;
  font-size: var(--t-body);
  line-height: 1.78;
  color: var(--cream-72);
}

.page-faq .faq-hero-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-hero-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--hair);
  border-radius: var(--faq-radius-sm);
  background: rgba(22, 28, 24, 0.7);
  font-size: var(--t-note);
  color: var(--cream-72);
}

.page-faq .faq-hero-num {
  flex: 0 0 auto;
  min-width: 40px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--pulse);
}

/* ============ 通用区块 ============ */
.page-faq .faq-section {
  padding: clamp(42px, 7vw, 72px) 0;
}

.page-faq .faq-section .section-title {
  margin: 10px 0 12px;
}

/* ============ 分组索引 ============ */
.page-faq .faq-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-index-card {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 78px;
  padding: 16px 18px;
  border: 1px solid var(--hair);
  border-radius: var(--faq-radius);
  background: linear-gradient(140deg, rgba(22, 28, 24, 0.96), rgba(10, 13, 11, 0.9));
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

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

.page-faq .faq-index-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-faq .faq-index-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  flex: 1 1 auto;
}

.page-faq .faq-index-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .faq-index-desc {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--rock);
}

.page-faq .faq-index-count {
  flex: 0 0 auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .faq-figure {
  margin: 26px 0 0;
  border: 1px solid var(--hair);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--ink-soft);
}

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

/* ============ 分组手风琴 ============ */
.page-faq .faq-group {
  position: relative;
  padding: clamp(40px, 7vw, 62px) 0;
  border-top: 1px solid var(--hair-soft);
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(148px, 34vw);
  height: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--accent);
}

.page-faq .faq-group[data-accent="violet"] {
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.07), transparent 62%);
}

.page-faq .faq-group[data-accent="orange"] {
  background: linear-gradient(180deg, rgba(255, 122, 43, 0.06), transparent 62%);
}

.page-faq .faq-group[data-accent="rock"] {
  background: linear-gradient(180deg, rgba(151, 161, 153, 0.05), transparent 62%);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-group-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-faq .faq-group-meta {
  min-width: 0;
}

.page-faq .faq-group-meta h2 {
  margin: 0;
  font-size: var(--t-section);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-group-meta p {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.06em;
  color: var(--rock);
}

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

.page-faq .accordion-item {
  border: 1px solid var(--hair);
  border-radius: var(--faq-radius-sm);
  background: rgba(22, 28, 24, 0.82);
  overflow: hidden;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-faq .accordion-item:hover {
  border-color: rgba(243, 246, 239, 0.22);
}

.page-faq .accordion-item:has(.accordion-trigger[aria-expanded="true"]) {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(243, 246, 239, 0.035), rgba(22, 28, 24, 0.82));
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  min-height: 58px;
  padding: 17px 18px;
  border: 0;
  background: none;
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  color: var(--cream);
  cursor: pointer;
}

.page-faq .accordion-trigger::before {
  content: "Q";
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-faq .accordion-trigger::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.25s ease;
}

.page-faq .accordion-trigger[aria-expanded="true"]::after {
  content: "−";
  transform: rotate(180deg);
}

.page-faq .accordion-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}

.page-faq .accordion-panel {
  padding: 0 18px 20px 42px;
  font-size: var(--t-body);
  line-height: 1.78;
  color: var(--cream-72);
}

.page-faq .accordion-panel p {
  margin: 0;
  max-width: 62ch;
}

/* ============ 反馈流程 ============ */
.page-faq .faq-flow {
  border-top: 1px solid var(--hair-soft);
}

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

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--hair);
  border-radius: var(--faq-radius-sm);
  background: rgba(22, 28, 24, 0.78);
}

.page-faq .faq-step::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

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

.page-faq .faq-step p {
  margin: 0;
  font-size: var(--t-note);
  line-height: 1.72;
  color: var(--cream-72);
}

.page-faq .faq-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ============ 延伸入口 ============ */
.page-faq .faq-more {
  border-top: 1px solid var(--hair-soft);
}

.page-faq .faq-more .section-title {
  margin-bottom: 22px;
}

.page-faq .faq-more-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-more-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--hair);
  border-left: 4px solid var(--pulse);
  border-radius: var(--faq-radius-sm);
  background: rgba(22, 28, 24, 0.72);
  text-decoration: none;
  transition: background 0.25s ease, border-left-color 0.25s ease;
}

.page-faq .faq-more-link:nth-child(2) {
  border-left-color: var(--violet);
}

.page-faq .faq-more-link:nth-child(3) {
  border-left-color: var(--clay);
}

.page-faq .faq-more-link:hover,
.page-faq .faq-more-link:focus-visible {
  background: rgba(30, 58, 38, 0.6);
}

.page-faq .faq-more-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--cream);
}

.page-faq .faq-more-desc {
  font-size: var(--t-note);
  line-height: 1.6;
  color: var(--rock);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-faq .faq-hero-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-more-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-accordion {
    gap: 12px;
  }

  .page-faq .accordion-trigger {
    font-size: 17px;
    padding: 19px 22px;
  }

  .page-faq .accordion-panel {
    padding: 0 22px 22px 46px;
  }

  .page-faq .faq-group-head {
    gap: 22px;
    margin-bottom: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-card,
  .page-faq .accordion-trigger::after,
  .page-faq .faq-more-link,
  .page-faq .accordion-item {
    transition: none;
  }

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