.page-faq {
  --faq-line: #2A3266;
  --faq-card: rgba(29, 36, 86, 0.72);
  font-family: var(--body);
  color: var(--ink);
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-faq .faq-shell {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 面包屑 */
.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}

.page-faq .faq-crumb a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-crumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-crumb span[aria-current="page"] {
  color: var(--ink);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(115% 95% at 92% -10%, rgba(63, 240, 216, 0.16), transparent 58%),
    radial-gradient(80% 80% at 4% 100%, rgba(139, 108, 246, 0.12), transparent 62%);
}

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  text-transform: uppercase;
}

.page-faq .faq-eyebrow--cyan {
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--head);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 14px;
  color: var(--ink-2);
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.page-faq .faq-dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(63, 240, 216, 0.16);
}

.page-faq .faq-dot--gold {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 185, 74, 0.16);
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 7;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--indigo-900);
}

.page-faq .faq-hero__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

/* 分类入口 */
.page-faq .faq-block {
  padding: 48px 0 8px;
}

.page-faq .faq-block__head {
  margin-bottom: 24px;
}

.page-faq .faq-block__head h2 {
  margin: 0 0 8px;
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 34px);
  letter-spacing: -0.01em;
}

.page-faq .faq-block__head p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-2);
}

.page-faq .faq-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-faq .faq-cat {
  display: grid;
  gap: 6px;
  height: 100%;
  padding: 20px 20px 22px;
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--accent, #3FF0D8);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(29, 36, 86, 0.86), rgba(20, 26, 69, 0.86));
  text-decoration: none;
  color: inherit;
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-cat--cyan { --accent: var(--cyan); }
.page-faq .faq-cat--gold { --accent: var(--gold); }
.page-faq .faq-cat--magenta { --accent: var(--magenta); }
.page-faq .faq-cat--violet { --accent: var(--violet); }
.page-faq .faq-cat--teal { --accent: var(--cyan-700); }
.page-faq .faq-cat--ok { --accent: var(--ok); }

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  border-top-color: var(--accent, var(--cyan));
  box-shadow: 0 10px 24px rgba(6, 10, 32, 0.55);
}

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

.page-faq .faq-cat__num {
  font-family: var(--mono);
  font-size: 28px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--accent, var(--cyan));
}

.page-faq .faq-cat__name {
  font-family: var(--head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.page-faq .faq-cat__q {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}

/* 主体：目录 + 问题列表 */
.page-faq .faq-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding: 40px 0 0;
}

.page-faq .faq-toc {
  display: none;
}

.page-faq .faq-col {
  display: grid;
  gap: 40px;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group h2 {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(21px, 4.4vw, 27px);
  letter-spacing: -0.01em;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: rgba(20, 26, 69, 0.62);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(63, 240, 216, 0.5);
}

.page-faq .faq-item[open] {
  background: rgba(29, 36, 86, 0.78);
  border-color: rgba(63, 240, 216, 0.55);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 15px 46px 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 0.2s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 19px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--gold);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}

.page-faq .faq-item__body {
  padding: 2px 20px 18px 20px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .faq-item__body p {
  margin: 0 0 8px;
  max-width: 62ch;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

/* 中段：指引用法 */
.page-faq .faq-spotlight {
  display: grid;
  gap: 28px;
  padding: 30px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(29, 36, 86, 0.95), rgba(11, 16, 48, 0.92) 62%),
    var(--indigo-900);
  scroll-margin-top: 96px;
}

.page-faq .faq-spotlight h2 {
  margin: 0 0 12px;
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(22px, 4.8vw, 30px);
  letter-spacing: -0.01em;
}

.page-faq .faq-spotlight__lede {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-faq .faq-paths {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .faq-path {
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-top: 2px solid var(--gold);
  border-radius: var(--radius-sm);
  background: rgba(11, 16, 48, 0.7);
}

.page-faq .faq-path__step {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-path strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--head);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-path p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-spotlight__figure {
  margin: 0;
  align-self: start;
}

.page-faq .faq-spotlight__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--indigo-900);
}

.page-faq .faq-spotlight__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* 收尾咨询 */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
  margin-top: 56px;
  padding: 34px 0 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-help h2 {
  margin: 0 0 12px;
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(23px, 5vw, 32px);
  letter-spacing: -0.01em;
}

.page-faq .faq-help__copy p {
  margin: 0 0 22px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

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

.page-faq .faq-cta {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  border: 1px solid var(--cyan);
  background: var(--cyan);
  color: #06121A;
  font-family: var(--head);
  font-weight: 800;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .faq-cta:hover,
.page-faq .faq-cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(63, 240, 216, 0.24);
}

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

.page-faq .faq-cta--ghost {
  background: transparent;
  border-color: var(--faq-line);
  color: var(--ink);
}

.page-faq .faq-cta--ghost:hover,
.page-faq .faq-cta--ghost:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 10px 22px rgba(6, 10, 32, 0.5);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__list li {
  padding: 18px 20px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  background: var(--faq-card);
}

.page-faq .faq-help__key {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}

.page-faq .faq-help__val {
  display: block;
  font-family: var(--head);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-help__val--mono {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 500;
}

.page-faq .faq-help__note {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-faq .faq-shell {
    padding: 0 6vw;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .faq-hero {
    padding: 44px 0 56px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: 54px;
    padding: 60px 0 72px;
  }

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

  .page-faq .faq-main {
    grid-template-columns: 236px minmax(0, 1fr);
    column-gap: 56px;
    row-gap: 44px;
  }

  .page-faq .faq-toc {
    display: block;
    grid-column: 1;
    grid-row: 1 / span 3;
    align-self: start;
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-col {
    grid-column: 2;
  }

  .page-faq .faq-spotlight {
    grid-column: 1 / -1;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 44px;
    padding: 42px 40px;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }
}

/* 侧边目录 */
.page-faq .faq-toc__title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid var(--faq-line);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-toc__list a i {
  font-family: var(--mono);
  font-style: normal;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-2);
  opacity: 0.75;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(63, 240, 216, 0.06);
}

.page-faq .faq-toc__list a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-cta,
  .page-faq .faq-item,
  .page-faq .faq-toc__list a {
    transition: none;
  }
}