.page-faq {
  background: var(--ink-0);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-block: 20px 0;
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--line);
}

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

.page-faq .faq-crumbs a:hover {
  color: var(--orange-bright);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: 32px 56px;
  background:
    radial-gradient(880px 440px at 82% -14%, rgba(255, 107, 26, 0.24), transparent 60%),
    radial-gradient(660px 400px at 4% 8%, rgba(0, 229, 255, 0.13), transparent 64%),
    var(--ink-0);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 92px 92px;
  opacity: 0.14;
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .faq-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 66px);
  line-height: 1.03;
  letter-spacing: -0.035em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.84;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-meta {
  margin: 20px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--gold);
}

.page-faq .faq-hero-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-1);
  position: relative;
}

.page-faq .faq-hero-figure::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 3px;
  background: var(--orange);
}

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

.page-faq .faq-hero-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 步骤定位 ---------- */
.page-faq .faq-steps {
  background: var(--ink-1);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-steps-grid {
  display: grid;
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-step {
  background: var(--ink-0);
  padding: 26px 22px 30px;
}

.page-faq .faq-step-num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-step h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-step p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 分类标签页 ---------- */
.page-faq .faq-cats {
  background: var(--ink-0);
}

.page-faq .faq-tabs {
  margin-top: 28px;
}

.page-faq .faq-tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-tab:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-0);
  font-weight: 700;
}

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

.page-faq .faq-tab-num {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  opacity: 0.72;
}

.page-faq .faq-panel {
  padding-top: 24px;
  max-width: 940px;
}

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

.page-faq .faq-panel-intro {
  margin: 0 0 22px;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 60ch;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 6px;
  list-style: none;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.2s ease;
}

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

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

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

.page-faq .faq-q summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-q[open] summary {
  color: var(--orange-bright);
}

.page-faq .faq-q[open] summary::after {
  content: "\2212";
}

.page-faq .faq-q-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-q .disclosure-body {
  padding: 0 6px 22px 42px;
}

.page-faq .faq-q .disclosure-body p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 设备排查配图 ---------- */
.page-faq .faq-device-figure {
  margin: 0 0 26px;
  border: 1px solid var(--line);
  background: var(--ink-1);
}

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

.page-faq .faq-device-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  background:
    linear-gradient(180deg, rgba(0, 229, 255, 0.07), transparent 70%),
    var(--ink-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-support-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-support-copy p {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--paper);
  opacity: 0.84;
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-ways {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--ink-0);
}

.page-faq .faq-way {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 18px 20px;
}

.page-faq .faq-way + .faq-way {
  border-top: 1px solid var(--line);
}

.page-faq .faq-way-key {
  flex: 0 0 84px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-way-value {
  flex: 1 1 180px;
  min-width: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-way--note .faq-way-value {
  color: var(--muted);
  font-size: 14px;
}

.page-faq .faq-way .copy-btn {
  flex: 0 0 auto;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-way .copy-btn:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

/* ---------- 相关页面 ---------- */
.page-faq .faq-links {
  background: var(--ink-0);
}

.page-faq .faq-links-grid {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-link-card {
  display: block;
  height: 100%;
  padding: 22px 20px 26px;
  background: var(--ink-1);
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-link-card:hover {
  background: var(--ink-2);
}

.page-faq .faq-link-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-link-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-link-card strong {
  display: block;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-link-card span:last-child {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

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

  .page-faq .faq-links-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding-block: 44px 76px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 1.04fr 0.96fr;
    align-items: center;
    gap: 52px;
  }

  .page-faq .faq-hero-figure {
    transform: translateY(14px);
  }

  .page-faq .faq-support-grid {
    grid-template-columns: 1fr 1.05fr;
    align-items: start;
    gap: 52px;
  }

  .page-faq .faq-q:nth-of-type(even) {
    margin-left: 48px;
  }

  .page-faq .faq-panel {
    padding-top: 34px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-links-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-q summary,
  .page-faq .faq-link-card,
  .page-faq .faq-way .copy-btn {
    transition: none;
  }

  .page-faq .faq-hero-figure {
    transform: none;
  }
}