.page-faq {
  --faq-gap: clamp(22px, 4vw, 46px);
  --faq-card-pad: clamp(18px, 3vw, 30px);
  --faq-deep: #0B0F12;
  --faq-card: #101619;
  --faq-body-text: #D7E3E7;
  --faq-kicker-paper: #0A7C8C;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -46%;
  width: 78vw;
  max-width: 760px;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 40% 40%, rgba(0, 229, 255, 0.20), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}

.page-faq .faq-hero .crumbs {
  margin-bottom: 22px;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 14px;
  color: #00E5FF;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  max-width: 16em;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 48ch;
  color: #E6F1F3;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 22px;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid rgba(168, 244, 255, 0.18);
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-faq .faq-hero__stats .num-lg {
  font-size: clamp(20px, 4.6vw, 38px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.page-faq .faq-hero__stats .label-mono {
  color: #A9B6BC;
}

.page-faq .faq-hero__figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero__media {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(168, 244, 255, 0.22), 0 34px 72px -44px rgba(0, 229, 255, 0.62);
}

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

.page-faq .faq-hero__caption {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #A9B6BC;
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-main h2 {
  margin: 12px 0 14px;
}

.page-faq .faq-intro {
  margin: 0 0 30px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: #A9B6BC;
}

/* ---------- 侧边快速定位 ---------- */

.page-faq .faq-toc {
  order: -1;
  min-width: 0;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  color: #A9B6BC;
}

.page-faq .faq-toc__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-toc__link {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid rgba(168, 244, 255, 0.22);
  border-radius: 100px;
  color: #E6F1F3;
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-color: #00E5FF;
  color: #00E5FF;
  background-color: rgba(0, 229, 255, 0.08);
}

/* ---------- 问题卡 ---------- */

.page-faq .faq-list {
  display: grid;
  gap: 14px;
}

.page-faq .faq-item {
  background: var(--faq-card);
  border: 1px solid rgba(168, 244, 255, 0.12);
  border-radius: 6px;
  transition: border-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(168, 244, 255, 0.28);
}

.page-faq .faq-item[open] {
  border-color: rgba(0, 229, 255, 0.42);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.10), 0 24px 56px -40px rgba(0, 229, 255, 0.75);
}

.page-faq .faq-item:target {
  border-color: #00E5FF;
}

.page-faq .faq-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 22px var(--faq-card-pad);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq .faq-summary:focus-visible {
  outline: 2px solid #00E5FF;
  outline-offset: -3px;
  border-radius: 6px;
}

.page-faq .faq-index {
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.2vw, 27px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: #00E5FF;
}

.page-faq .faq-head {
  display: block;
  min-width: 0;
}

.page-faq .faq-q {
  display: block;
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: #F2F7F7;
}

.page-faq .faq-sym {
  display: block;
  margin-top: 7px;
  font-size: 14px;
  line-height: 1.7;
  color: #A9B6BC;
}

.page-faq .faq-toggle {
  position: relative;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  border: 1px solid rgba(168, 244, 255, 0.28);
  border-radius: 50%;
  flex: none;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 1.5px;
  background: #00E5FF;
  transform: translate(-50%, -50%);
  transition: transform 0.18s var(--ease);
}

.page-faq .faq-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .faq-panel {
  border-top: 1px solid rgba(168, 244, 255, 0.10);
  padding: 20px var(--faq-card-pad) 26px;
}

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

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-faq .faq-step-no {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 2.1;
  letter-spacing: 0.08em;
  color: #FF6A2B;
  padding-top: 1px;
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-body-text);
}

.page-faq .faq-steps a {
  color: #00E5FF;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 2px solid #7CFF4F;
  background: rgba(124, 255, 79, 0.06);
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  line-height: 1.78;
  color: #E6F1F3;
}

.page-faq .faq-item--help {
  background: linear-gradient(160deg, rgba(255, 106, 43, 0.10), rgba(11, 15, 18, 0.9) 58%);
}

/* ---------- 排查顺序条 ---------- */

.page-faq .faq-order__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.page-faq .faq-order__steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-order__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(168, 244, 255, 0.12);
}

.page-faq .faq-order__steps li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-order__steps .label-mono {
  color: #7CFF4F;
}

.page-faq .faq-order__steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #D7E3E7;
}

.page-faq .faq-order__figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-order__media {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(168, 244, 255, 0.20);
}

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

/* ---------- 收尾 ---------- */

.page-faq .faq-next__inner {
  max-width: 720px;
}

.page-faq .faq-next__kicker {
  margin: 0 0 12px;
  color: var(--faq-kicker-paper);
}

.page-faq .faq-next h2 {
  margin: 0 0 14px;
}

.page-faq .faq-next p {
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dark);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 60px;
    align-items: end;
  }

  .page-faq .faq-hero__media {
    transform: rotate(-2.5deg);
  }

  .page-faq .faq-order__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 64px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 58px;
    align-items: start;
  }

  .page-faq .faq-toc {
    order: 0;
    position: sticky;
    top: calc(var(--header-h-compact) + 28px);
  }

  .page-faq .faq-toc__nav {
    display: block;
    overflow: visible;
    padding: 0 0 0 16px;
    border-left: 1px solid rgba(168, 244, 255, 0.18);
  }

  .page-faq .faq-toc__link {
    display: block;
    position: relative;
    padding: 9px 0 9px 14px;
    border: 0;
    border-radius: 0;
    background: none;
    font-size: 14px;
    line-height: 1.5;
    white-space: normal;
    color: #C8D6DA;
  }

  .page-faq .faq-toc__link:hover,
  .page-faq .faq-toc__link:focus-visible {
    background: none;
    color: #00E5FF;
  }

  .page-faq .faq-toc__link::before {
    content: "";
    position: absolute;
    left: -20.5px;
    top: 50%;
    width: 7px;
    height: 7px;
    margin-top: -3.5px;
    border-radius: 50%;
    background: #161E23;
    box-shadow: 0 0 0 1px rgba(168, 244, 255, 0.30);
    transition: background-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
  }

  .page-faq .faq-toc__link:hover::before,
  .page-faq .faq-toc__link:focus-visible::before {
    background: #00E5FF;
    box-shadow: 0 0 0 1px #00E5FF, 0 0 12px rgba(0, 229, 255, 0.85);
  }

  .page-faq .faq-summary {
    gap: 20px;
    padding: 26px var(--faq-card-pad);
  }

  .page-faq .faq-panel {
    padding: 22px var(--faq-card-pad) 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__media {
    transform: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-toc__link,
  .page-faq .faq-toggle::before,
  .page-faq .faq-toggle::after {
    transition: none;
  }
}