.page-faq {
  --faq-line: rgba(154, 168, 191, 0.22);
  --faq-line-soft: rgba(154, 168, 191, 0.12);
  color: var(--og-pale);
  font-family: var(--og-font-body);
}

.page-faq .faq-shell {
  display: flex;
  flex-direction: column;
  gap: 52px;
  padding-top: 20px;
  padding-bottom: 72px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 20px 26px;
  border: 1px solid var(--og-metal);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(255, 106, 26, 0.16), transparent 58%),
    radial-gradient(90% 120% at 0% 100%, rgba(47, 124, 255, 0.18), transparent 62%),
    linear-gradient(160deg, var(--og-deep), var(--og-ink) 64%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(242, 246, 255, 0.045) 0 1px,
    transparent 1px 4px
  );
  opacity: 0.5;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 7.4vw, 3.35rem);
  line-height: 1.1;
  letter-spacing: 0.005em;
  color: var(--og-pale);
}

.page-faq .faq-hero__lead {
  max-width: 56ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--og-silver);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-hero__strip .og-mono {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--og-silver);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 84px;
}

.page-faq .faq-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-sec__no {
  font-family: var(--og-font-narrow);
  font-size: 1.75rem;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--og-blue);
}

.page-faq .faq-sec__t {
  margin: 0;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 4.6vw, 1.72rem);
  line-height: 1.25;
  letter-spacing: 0.015em;
}

.page-faq .faq-sec__hint {
  margin-left: auto;
  font-family: var(--og-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--og-silver);
  white-space: nowrap;
}

.page-faq .faq-sec__lead {
  max-width: 62ch;
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--og-silver);
}

.page-faq .faq-note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--og-metal);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--og-silver);
}

.page-faq .faq-note a {
  color: var(--og-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 225, 255, 0.4);
}

.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible {
  color: var(--og-acid);
  border-bottom-color: var(--og-acid);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 118px;
  padding: 16px 14px 15px;
  overflow: hidden;
  text-decoration: none;
  color: var(--og-pale);
  border: 1px solid var(--og-metal);
  border-left-width: 3px;
  background: linear-gradient(165deg, rgba(11, 27, 43, 0.95), rgba(7, 9, 15, 0.98));
  transition: transform 0.22s var(--og-ease), border-color 0.22s var(--og-ease),
    background-color 0.22s var(--og-ease);
}

.page-faq .faq-cat::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: var(--og-ink);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: 0.9;
}

.page-faq .faq-cat--a { border-left-color: var(--og-cyan); }
.page-faq .faq-cat--b { border-left-color: var(--og-blue); }
.page-faq .faq-cat--c { border-left-color: var(--og-acid); }
.page-faq .faq-cat--d { border-left-color: var(--og-orange); }
.page-faq .faq-cat--e { border-left-color: var(--og-silver); }

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translateY(-3px);
  border-color: var(--og-cyan);
  background: linear-gradient(165deg, rgba(15, 76, 76, 0.55), rgba(7, 9, 15, 0.98));
}

.page-faq .faq-cat__count {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--og-pale);
}

.page-faq .faq-cat__name {
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: 1.08rem;
  letter-spacing: 0.05em;
}

.page-faq .faq-cat__d {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--og-silver);
}

/* ---------- 四步 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 18px 16px 16px;
  border: 1px solid var(--og-metal);
  border-top: 3px solid var(--og-blue);
  background: linear-gradient(180deg, rgba(11, 27, 43, 0.88), rgba(7, 9, 15, 0.96));
}

.page-faq .faq-step:nth-child(2) { border-top-color: var(--og-cyan); }
.page-faq .faq-step:nth-child(3) { border-top-color: var(--og-orange); }
.page-faq .faq-step:nth-child(4) { border-top-color: var(--og-acid); }

.page-faq .faq-step__num {
  display: block;
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: rgba(242, 246, 255, 0.16);
}

.page-faq .faq-step__t {
  margin: 8px 0 6px;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.03em;
}

.page-faq .faq-step__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--og-silver);
}

.page-faq .faq-step__meta {
  margin: 10px 0 0;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: rgba(154, 168, 191, 0.75);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 900;
  object-fit: cover;
}

.page-faq .faq-figure--side img {
  aspect-ratio: 1200 / 800;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-acc-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-acc {
  border: 1px solid var(--og-metal);
  background: rgba(11, 27, 43, 0.62);
  transition: border-color 0.2s var(--og-ease), background-color 0.2s var(--og-ease);
}

.page-faq .faq-acc[open] {
  border-color: rgba(77, 225, 255, 0.42);
  background: rgba(15, 76, 76, 0.24);
}

.page-faq .faq-acc__sum {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.5;
}

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

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

.page-faq .faq-acc__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--og-silver);
  transition: background-color 0.2s var(--og-ease), box-shadow 0.2s var(--og-ease);
}

.page-faq .faq-acc[open] .faq-acc__dot {
  background: var(--og-acid);
  box-shadow: 0 0 10px rgba(182, 255, 59, 0.7);
}

.page-faq .faq-acc__q {
  flex: 1 1 auto;
  color: var(--og-pale);
}

.page-faq .faq-acc__ver {
  flex: 0 0 auto;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--og-silver);
}

.page-faq .faq-acc__body {
  padding: 0 14px 16px 32px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-acc__body p {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--og-silver);
}

/* ---------- 故障排查 ---------- */
.page-faq .faq-trouble {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-checks {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-check {
  position: relative;
  padding: 0 0 18px 22px;
  border-left: 1px solid var(--faq-line);
}

.page-faq .faq-check:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .faq-check::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--og-ink);
  border: 1px solid var(--og-blue);
  transform: rotate(45deg);
}

.page-faq .faq-check:last-child::before {
  border-color: var(--og-orange);
  background: var(--og-orange);
}

.page-faq .faq-check__k {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--og-cyan);
}

.page-faq .faq-check__t {
  margin: 4px 0 4px;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.page-faq .faq-check__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--og-silver);
}

/* ---------- 参数表 ---------- */
.page-faq .faq-ptable {
  border: 1px solid var(--og-metal);
  background: rgba(7, 9, 15, 0.72);
}

.page-faq .faq-prow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 12px 14px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 13.5px;
  line-height: 1.6;
}

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

.page-faq .faq-prow > span:first-child {
  color: var(--og-pale);
  font-weight: 600;
}

.page-faq .faq-prow > span:nth-child(2) {
  color: var(--og-acid);
  font-size: 13px;
  letter-spacing: 0.05em;
}

.page-faq .faq-prow > span:nth-child(3) {
  color: var(--og-silver);
  font-size: 12.5px;
}

.page-faq .faq-prow--head {
  background: rgba(47, 124, 255, 0.12);
  font-family: var(--og-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--og-silver);
}

.page-faq .faq-prow--head > span {
  color: var(--og-silver) !important;
  font-size: 10.5px !important;
  letter-spacing: 0.16em !important;
  font-weight: 400 !important;
}

/* ---------- 赛事 / 训练房 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-panel {
  padding: 20px 16px 18px;
  border: 1px solid var(--og-metal);
}

.page-faq .faq-panel--wine {
  background: linear-gradient(170deg, rgba(74, 18, 38, 0.72), rgba(7, 9, 15, 0.96));
  border-left: 3px solid var(--og-orange);
}

.page-faq .faq-panel--teal {
  background: linear-gradient(170deg, rgba(15, 76, 76, 0.62), rgba(7, 9, 15, 0.96));
  border-left: 3px solid var(--og-acid);
}

.page-faq .faq-panel__t {
  margin: 8px 0 10px;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: clamp(1.06rem, 4vw, 1.28rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.page-faq .faq-panel__d {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--og-silver);
}

.page-faq .faq-panel__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-panel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--og-pale);
}

.page-faq .faq-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--og-cyan);
}

/* ---------- 本地服务 ---------- */
.page-faq .faq-local {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 20px 16px;
  border: 1px solid var(--og-metal);
  background:
    radial-gradient(110% 130% at 0% 0%, rgba(36, 24, 74, 0.78), transparent 62%),
    rgba(7, 9, 15, 0.94);
}

.page-faq .faq-local__t {
  margin: 8px 0 8px;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: clamp(1.05rem, 4vw, 1.3rem);
  line-height: 1.32;
}

.page-faq .faq-local__d {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--og-silver);
}

.page-faq .faq-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cities li {
  padding: 5px 10px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--og-pale);
  border: 1px solid var(--og-metal);
  background: rgba(11, 27, 43, 0.78);
}

.page-faq .faq-local__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 10px 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-local__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.65;
  color: var(--og-pale);
}

.page-faq .faq-local__list .og-mono {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--og-acid);
  letter-spacing: 0.1em;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-sec--final {
  padding-top: 8px;
}

.page-faq .faq-support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-support__card {
  padding: 16px 14px;
  border: 1px solid var(--og-metal);
  border-top: 2px solid var(--og-blue);
  background: rgba(11, 27, 43, 0.66);
}

.page-faq .faq-support__card:first-child {
  border-top-color: var(--og-orange);
}

.page-faq .faq-support__t {
  margin: 8px 0 6px;
  font-family: var(--og-font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.03em;
}

.page-faq .faq-support__d {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--og-silver);
}

.page-faq .faq-support__d a {
  color: var(--og-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 225, 255, 0.45);
  word-break: break-all;
}

.page-faq .faq-support__d a:hover,
.page-faq .faq-support__d a:focus-visible {
  color: var(--og-acid);
  border-bottom-color: var(--og-acid);
}

.page-faq .faq-support__card .og-btn {
  margin-top: auto;
}

.page-faq .faq-note--tail {
  margin-top: 20px;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-shell {
    gap: 60px;
    padding-top: 26px;
    padding-bottom: 88px;
  }

  .page-faq .faq-hero {
    padding: 38px 30px 32px;
  }

  .page-faq .faq-sec__no {
    font-size: 2.1rem;
  }

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

  .page-faq .faq-split,
  .page-faq .faq-support {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-local {
    padding: 24px 22px;
  }

  .page-faq .faq-prow {
    grid-template-columns: 140px 120px 1fr;
    align-items: baseline;
    gap: 10px;
  }

  .page-faq .faq-prow > span:nth-child(2) {
    text-align: left;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-shell {
    gap: 72px;
    padding-left: 4px;
    padding-right: 4px;
  }

  .page-faq .faq-hero {
    padding: 48px 42px 38px;
  }

  .page-faq .faq-hero__title {
    max-width: 18ch;
  }

  .page-faq .faq-hero__lead {
    font-size: 15.5px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }

  .page-faq .faq-step {
    padding: 20px 16px 18px;
  }

  .page-faq .faq-step::after {
    content: "";
    position: absolute;
    top: 28px;
    right: -8px;
    width: 12px;
    height: 1px;
    background: linear-gradient(to right, rgba(77, 225, 255, 0.75), transparent);
    transform: rotate(-32deg);
    transform-origin: left center;
  }

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

  .page-faq .faq-trouble {
    grid-template-columns: 5fr 7fr;
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-figure--side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-checks {
    padding-top: 4px;
  }

  .page-faq .faq-check {
    padding-bottom: 22px;
    padding-left: 26px;
  }

  .page-faq .faq-split {
    gap: 16px;
  }

  .page-faq .faq-panel {
    padding: 26px 24px 22px;
  }

  .page-faq .faq-local {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
    padding: 30px 28px;
  }

  .page-faq .faq-support {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-faq .faq-support__card {
    display: flex;
    flex-direction: column;
    padding: 20px 18px;
  }

  .page-faq .faq-acc__sum {
    padding: 16px 18px;
  }

  .page-faq .faq-acc__body {
    padding: 0 18px 18px 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-acc,
  .page-faq .faq-acc__dot {
    transition: none;
  }

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