.page-faq {
  --faq-index-w: 236px;
  --faq-panel: rgba(11, 41, 66, 0.62);
  background: var(--blue-900);
  color: var(--sand-050);
  overflow-x: hidden;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

/* ---------- 首屏：主题声明 + 三条快捷路径 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: calc(var(--header-h) + 46px);
  padding-bottom: 48px;
  background:
    radial-gradient(115% 85% at 86% -12%, rgba(32, 215, 232, 0.22), transparent 62%),
    radial-gradient(88% 72% at 2% 110%, rgba(255, 107, 74, 0.16), transparent 66%),
    var(--blue-900);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-500), var(--coral-500), transparent);
  opacity: 0.55;
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
  font-size: 12.5px;
  color: var(--on-dark-dim);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  color: var(--mist-400);
}

.page-faq .breadcrumb a {
  color: var(--cyan-300);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--sand-050);
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-500);
}

.page-faq .faq-title {
  margin: 14px 0 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-size: clamp(29px, 7vw, 58px);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -0.02em;
  color: var(--sand-050);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.85;
  color: var(--on-dark);
}

.page-faq .quick-paths {
  display: grid;
  gap: 10px;
  margin-top: 34px;
}

.page-faq .quick-path {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 16px 16px 18px;
  background: var(--faq-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--sand-050);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .quick-path:hover,
.page-faq .quick-path:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan-500);
  background: rgba(11, 41, 66, 0.94);
}

.page-faq .qp-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  padding-top: 4px;
  color: var(--coral-500);
  letter-spacing: 0.08em;
}

.page-faq .qp-title {
  display: block;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .qp-desc {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

/* ---------- 索引 + 正文双栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding-top: 38px;
  padding-bottom: 60px;
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist-400);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: block;
  padding: 9px 13px;
  white-space: nowrap;
  font-size: 13px;
  text-decoration: none;
  color: var(--on-dark);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--sand-050);
  border-color: var(--cyan-500);
  background: rgba(32, 215, 232, 0.1);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-section {
  padding-bottom: 38px;
  margin-bottom: 38px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-section:last-of-type {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-faq .sec-head {
  display: flex;
  gap: 14px;
  align-items: baseline;
  margin-bottom: 14px;
}

.page-faq .sec-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--coral-500);
}

.page-faq .sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--sand-050);
}

.page-faq .sec-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.86;
  color: var(--on-dark);
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .step:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .step-num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--coral-500);
  color: var(--ink-950);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .step-title {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--sand-050);
}

.page-faq .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--on-dark);
}

/* ---------- 要点列表 ---------- */
.page-faq .facts {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .fact {
  position: relative;
  padding: 12px 0 12px 22px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--on-dark);
}

.page-faq .fact:first-child {
  border-top: 0;
}

.page-faq .fact::before {
  content: "";
  position: absolute;
  left: 0;
  top: 21px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan-500);
  border-radius: 50%;
}

.page-faq .fact strong {
  color: var(--sand-050);
  font-weight: 700;
}

/* ---------- 提示条 ---------- */
.page-faq .callout {
  margin-top: 22px;
  padding: 15px 18px 15px 20px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--on-dark);
  background: rgba(32, 215, 232, 0.07);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan-500);
  border-radius: var(--radius-sm);
}

.page-faq .callout strong {
  color: var(--sand-050);
}

.page-faq .callout--coral {
  background: rgba(255, 107, 74, 0.08);
  border-left-color: var(--coral-500);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
  background: var(--ink-950);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--on-dark-dim);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-figure--tall {
  max-width: 380px;
}

/* ---------- 客服面板（浅色阅读区） ---------- */
.page-faq .support-panel {
  padding: 24px 20px;
  background: var(--sand-050);
  color: var(--blue-900);
  border: 1px solid rgba(6, 26, 43, 0.1);
  border-radius: var(--radius-md);
  box-shadow: 0 22px 44px -38px rgba(3, 17, 28, 0.95);
}

.page-faq .support-panel .sec-title {
  color: var(--blue-900);
}

.page-faq .support-panel .sec-lede,
.page-faq .support-panel p {
  color: rgba(6, 26, 43, 0.8);
}

.page-faq .support-panel a {
  color: var(--blue-800);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .support-panel a:hover {
  color: var(--coral-500);
}

.page-faq .contact-grid {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .contact-card {
  padding: 14px 16px 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(6, 26, 43, 0.12);
  border-radius: var(--radius-sm);
}

.page-faq .contact-key {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist-400);
}

.page-faq .contact-val {
  display: block;
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--blue-900);
  word-break: break-word;
}

.page-faq .support-panel a.contact-val {
  text-decoration: none;
  border-bottom: 1px solid rgba(6, 26, 43, 0.3);
}

.page-faq .support-panel a.contact-val:hover {
  color: var(--coral-500);
  border-bottom-color: var(--coral-500);
}

.page-faq .contact-note {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.72;
  color: rgba(6, 26, 43, 0.68);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-list {
  margin-top: 22px;
}

.page-faq .qa {
  margin-bottom: 10px;
  background: var(--faq-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .qa[open] {
  border-color: var(--line);
  background: rgba(11, 41, 66, 0.94);
}

.page-faq .qa summary {
  position: relative;
  padding: 15px 46px 15px 16px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--sand-050);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--cyan-500);
}

.page-faq .qa[open] summary::after {
  content: "−";
  color: var(--coral-500);
}

.page-faq .qa summary:hover {
  color: var(--cyan-300);
}

.page-faq .qa-body {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.86;
  color: var(--on-dark);
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
  margin-top: 0;
}

.page-faq .qa-body p {
  margin: 0;
}

.page-faq .qa-body p + p {
  margin-top: 8px;
}

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

.page-faq .qa-body a:hover {
  color: var(--coral-500);
}

/* ---------- 底部去向 ---------- */
.page-faq .faq-cta {
  padding-top: 42px;
  padding-bottom: 58px;
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, transparent, rgba(32, 215, 232, 0.07));
}

.page-faq .cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--sand-050);
}

.page-faq .cta-links {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .cta-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  color: var(--sand-050);
  background: rgba(11, 41, 66, 0.55);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .cta-link:hover,
.page-faq .cta-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan-500);
  background: rgba(32, 215, 232, 0.1);
}

.page-faq .cta-link .arrow {
  font-family: var(--font-mono);
  color: var(--coral-500);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .quick-paths,
  .page-faq .contact-grid,
  .page-faq .cta-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 58px);
    padding-bottom: 58px;
  }

  .page-faq .support-panel {
    padding: 30px 26px;
  }

  .page-faq .qa summary {
    padding: 16px 52px 16px 20px;
    font-size: 15.5px;
  }

  .page-faq .qa-body {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .quick-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 54px;
    padding-top: 54px;
    padding-bottom: 84px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-faq .faq-index-list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .faq-index-list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index-link {
    padding: 9px 0 9px 14px;
    white-space: normal;
    font-size: 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    color: var(--cyan-300);
    background: rgba(32, 215, 232, 0.06);
    border-left-color: var(--cyan-500);
  }

  .page-faq .faq-figure--tall {
    max-width: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quick-path,
  .page-faq .qa,
  .page-faq .cta-link {
    transition: none;
  }

  .page-faq .quick-path:hover,
  .page-faq .cta-link:hover {
    transform: none;
  }
}