.page-faq {
  --faq-max: 1180px;
  --faq-pad: 20px;
  display: block;
  background: var(--c-ink);
  color: var(--c-paper);
  padding-bottom: 72px;
  overflow-x: clip;
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: var(--faq-max);
  margin: 0 auto;
  padding-inline: var(--faq-pad);
}

.page-faq .breadcrumbs {
  padding-top: 20px;
  font-size: 13.5px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-block: 16px 28px;
  padding: clamp(24px, 4.4vw, 52px);
  border-radius: var(--r-block);
  border: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(680px 340px at 92% -22%, rgba(176, 18, 43, .58), transparent 68%),
    radial-gradient(520px 300px at -12% 118%, rgba(22, 196, 127, .30), transparent 72%),
    var(--c-slate);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: 26px;
  width: 340px;
  height: 3px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, transparent, rgba(230, 184, 74, .85));
  transform: rotate(-6deg);
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(30px, 6.6vw, 58px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.02em;
}

.page-faq .faq-hero h1 .hl {
  display: inline-block;
  color: var(--c-gold);
  transform: rotate(-2.4deg);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 14px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-faq .hero-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .metric-num {
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-green);
}

.page-faq .metric-label {
  font-size: 13px;
  color: var(--muted-2);
  letter-spacing: .02em;
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-fast {
  margin-bottom: 36px;
  padding: clamp(22px, 3.6vw, 42px);
  border-radius: var(--r-block);
  border: 1px solid rgba(22, 196, 127, .30);
  background:
    linear-gradient(135deg, rgba(22, 196, 127, .20), rgba(143, 227, 192, .05) 46%, rgba(13, 17, 20, 0) 100%),
    var(--c-slate);
}

.page-faq .fast-title {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.6vw, 32px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
}

.page-faq .fast-note {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .fast-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  background: rgba(13, 17, 20, .58);
}

.page-faq .fast-step-num {
  display: block;
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 700;
  line-height: .9;
  color: transparent;
  -webkit-text-stroke: 1.4px var(--c-gold);
  transform: rotate(-6deg);
}

.page-faq .fast-step-title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 800;
  line-height: 1.4;
}

.page-faq .fast-step-text {
  margin: 8px 0 0;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .fast-figure {
  margin: 26px 0 0;
  border-radius: var(--r-card);
  overflow: hidden;
}

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

/* ---------- 左右分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 22px;
}

.page-faq .faq-index {
  padding: 16px;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  background: var(--c-slate);
}

.page-faq .index-title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted-2);
}

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

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

.page-faq .index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.page-faq .index-link:hover,
.page-faq .index-link:focus-visible {
  color: var(--c-paper);
  border-color: rgba(22, 196, 127, .55);
  background: rgba(22, 196, 127, .10);
}

.page-faq .index-num {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-gold);
}

.page-faq .index-tip {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted-2);
}

.page-faq .index-tip a {
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 196, 127, .45);
}

.page-faq .index-tip a:hover {
  color: var(--c-green-soft);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-group {
  margin-bottom: 30px;
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .group-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .group-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-gold);
}

.page-faq .group-title {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 23px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-faq .group-head .chip {
  margin-left: auto;
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: rgba(42, 50, 56, .68);
  overflow: hidden;
  transition: border-color var(--dur), background var(--dur);
}

.page-faq .qa[open] {
  border-color: rgba(22, 196, 127, .48);
  background: rgba(42, 50, 56, .96);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: -2px;
}

.page-faq .qa-q {
  min-width: 0;
}

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 auto;
  margin-left: auto;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  transition: border-color var(--dur), background var(--dur);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 1.5px;
  border-radius: var(--r-pill);
  background: var(--c-green-soft);
  transform: translateY(-50%);
}

.page-faq .qa-mark::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform .24s ease, opacity .24s ease;
}

.page-faq .qa[open] .qa-mark {
  border-color: rgba(22, 196, 127, .70);
  background: rgba(22, 196, 127, .14);
}

.page-faq .qa[open] .qa-mark::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa-a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-faq .qa-a a {
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 196, 127, .45);
}

.page-faq .qa-a a:hover {
  color: var(--c-green-soft);
}

.page-faq .qa[open] .qa-a {
  animation: faq-reveal .24s ease both;
}

@keyframes faq-reveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 终端清单 ---------- */
.page-faq .term-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.page-faq .term {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  background: rgba(42, 50, 56, .60);
}

.page-faq .term-name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-faq .term-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted-2);
}

/* ---------- 服务支持 ---------- */
.page-faq .support-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.page-faq .support-card {
  padding: 18px;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  background:
    linear-gradient(150deg, rgba(176, 18, 43, .16), rgba(13, 17, 20, 0) 62%),
    rgba(42, 50, 56, .68);
}

.page-faq .support-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .support-text {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.82;
  color: var(--muted);
  word-break: break-word;
}

.page-faq .support-text a {
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 196, 127, .45);
}

.page-faq .support-text a:hover {
  color: var(--c-green-soft);
}

.page-faq .support-figure {
  margin: 0;
  border-radius: var(--r-card);
  overflow: hidden;
}

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

/* ---------- 桌面布局 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-wrap { --faq-pad: 32px; }

  .page-faq .fast-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .fast-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

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

@media (min-width: 960px) {
  .page-faq {
    padding-bottom: 96px;
  }

  .page-faq .faq-wrap {
    --faq-pad: 40px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 18px);
    padding: 20px 16px;
  }

  .page-faq .index-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .index-item {
    flex: 1 1 auto;
  }

  .page-faq .index-link {
    display: flex;
    width: 100%;
    white-space: normal;
    padding: 11px 12px;
    border-radius: 14px;
    border-color: transparent;
    font-size: 14.5px;
  }
}

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

  .page-faq .qa-mark::after,
  .page-faq .qa-mark {
    transition: none;
  }
}