.page-faq {
  background: var(--bone);
  color: var(--ink);
  font-family: var(--font-sans);
  --faq-accent: var(--clay);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--ink-deep);
  background-image: repeating-linear-gradient(90deg, rgba(244, 241, 230, .055) 0 1px, transparent 1px 44px);
  color: var(--bone);
  padding: calc(var(--header-h) + clamp(30px, 6vw, 66px)) 0 clamp(34px, 5vw, 56px);
}

.page-faq .faq-hero .breadcrumbs {
  font-size: 13px;
  letter-spacing: .04em;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero .breadcrumbs a,
.page-faq .faq-hero .breadcrumbs span {
  color: rgba(244, 241, 230, .74);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--bone);
  text-decoration: underline;
}

.page-faq .faq-hero .breadcrumbs a:focus-visible,
.page-faq .faq-hero .breadcrumbs span:focus-visible {
  outline: 2px solid var(--winter);
  outline-offset: 3px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--winter);
  margin: 0 0 16px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 900;
  margin: 0 0 20px;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
  color: rgba(244, 241, 230, .82);
  margin: 0;
  max-width: 34em;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  font-size: 13px;
  color: rgba(244, 241, 230, .78);
}

.page-faq .faq-hero__facts .num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--signal);
}

.page-faq .faq-hero__console {
  align-self: end;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-l);
  background: rgba(20, 22, 26, .42);
  padding: clamp(16px, 3vw, 24px);
}

.page-faq .faq-console__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(244, 241, 230, .6);
  margin: 0 0 12px;
}

.page-faq .status-panel {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: rgba(18, 53, 46, .55);
}

.page-faq .status-panel__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-light);
  font-size: 14px;
}

.page-faq .status-panel__item:last-child {
  border-bottom: 0;
}

.page-faq .status-panel__key {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: rgba(244, 241, 230, .74);
}

.page-faq .status-panel__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--bone);
  white-space: nowrap;
}

.page-faq .status-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rock);
  flex: none;
}

.page-faq .status-panel__dot--signal {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 31, .18);
}

.page-faq .status-panel__dot--winter {
  background: var(--winter);
  box-shadow: 0 0 0 4px rgba(95, 183, 220, .16);
}

.page-faq .faq-hero__bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-faq .faq-hero__bars span {
  height: 4px;
  border-radius: 2px;
}

.page-faq .faq-hero__bars span:nth-child(1) { background: var(--spring); }
.page-faq .faq-hero__bars span:nth-child(2) { background: var(--summer); }
.page-faq .faq-hero__bars span:nth-child(3) { background: var(--autumn); }
.page-faq .faq-hero__bars span:nth-child(4) { background: var(--winter); }

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(34px, 6vw, 72px) 0 clamp(46px, 7vw, 88px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-index__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rock);
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bone-raised);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-index__link .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--rock);
}

.page-faq .faq-index__link:hover {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
  color: var(--bone);
}

.page-faq .faq-index__link:hover .num {
  color: var(--winter);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(38px, 6vw, 68px);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-group--spring { --faq-accent: var(--spring); }
.page-faq .faq-group--summer { --faq-accent: var(--summer); }
.page-faq .faq-group--autumn { --faq-accent: var(--autumn); }
.page-faq .faq-group--winter { --faq-accent: var(--winter); }
.page-faq .faq-group--clay { --faq-accent: var(--clay); }

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: end;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 2px solid var(--faq-accent);
}

.page-faq .faq-group__round {
  font-family: var(--font-mono);
  font-size: clamp(38px, 7vw, 66px);
  line-height: .82;
  font-weight: 700;
  color: var(--faq-accent);
  letter-spacing: -.04em;
}

.page-faq .faq-group__title {
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--ink);
}

.page-faq .faq-group__sub {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 16px 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(244, 241, 230, .72);
  border-top: 1px solid var(--line-light);
}

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

.page-faq .faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 2px;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.6;
  font-weight: 700;
  color: var(--ink);
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--electric);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 2px;
  border-radius: var(--radius-s);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 200ms var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-item__sign::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-item__sign {
  border-color: var(--signal);
}

.page-faq .faq-item[open] .faq-item__sign::before {
  background: var(--signal);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 2px 22px;
  max-width: 62ch;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faq-reveal 260ms var(--ease) both;
}

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

/* ---------- 步骤序列 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 38px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--faq-accent);
  letter-spacing: -.02em;
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 22px;
  bottom: -14px;
  width: 1px;
  background: var(--line);
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 支持区块 ---------- */
.page-faq .faq-support {
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(22px, 4vw, 40px);
  border-radius: var(--radius-l);
  background-color: var(--ink);
  background-image: repeating-linear-gradient(135deg, rgba(244, 241, 230, .045) 0 1px, transparent 1px 12px);
  color: var(--bone);
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .faq-support__title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--bone);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-light);
}

.page-faq .faq-support__links,
.page-faq .faq-support__lines,
.page-faq .faq-support__check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-support__links a {
  color: var(--bone);
  font-size: 15px;
  line-height: 1.7;
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 109, 246, .45);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-support__links a:hover {
  color: var(--winter);
  border-color: var(--winter);
}

.page-faq .faq-support__links a:focus-visible {
  outline: 2px solid var(--winter);
  outline-offset: 3px;
}

.page-faq .faq-support__lines li {
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 230, .84);
}

.page-faq .faq-support__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 241, 230, .62);
}

.page-faq .faq-support__check li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 230, .84);
}

.page-faq .faq-support__check .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(190px, 228px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index__inner {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
  }

  .page-faq .faq-index__note {
    writing-mode: vertical-rl;
    margin: 0;
    padding-top: 6px;
    letter-spacing: .28em;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 8px;
  }

  .page-faq .faq-index__link {
    white-space: normal;
    border-radius: var(--radius-s);
  }

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

@media (max-width: 999px) {
  .page-faq .faq-index__note {
    display: none;
  }
}

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

  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-index__link {
    transition: none;
  }
}