.page-faq {
  --faq-line: var(--green);
  --faq-line-soft: rgba(77, 240, 138, 0.32);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: 104px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 26px 0 64px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -160px;
  right: -12%;
  width: 72%;
  height: 480px;
  background: var(--grad);
  opacity: 0.15;
  filter: blur(84px);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -8%;
  bottom: -60px;
  width: 48%;
  height: 240px;
  background: radial-gradient(circle at 32% 42%, rgba(255, 122, 47, 0.28), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  max-width: 880px;
}

.page-faq .faq-hero .display {
  margin: 12px 0 0;
  font-size: clamp(2rem, 6.2vw, 3.6rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .display em {
  font-style: normal;
  color: var(--green);
}

.page-faq .faq-hero__lead {
  margin: 22px 0 0;
  max-width: 720px;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 8px;
  padding-bottom: 76px;
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border-top: 1px solid var(--steel);
  padding-top: 20px;
}

.page-faq .faq-index__lead {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.page-faq .faq-index__group {
  --faq-dot: var(--green);
  margin-bottom: 22px;
}

.page-faq .faq-index__group--data {
  --faq-dot: var(--blue);
}

.page-faq .faq-index__group--squad {
  --faq-dot: var(--amber);
}

.page-faq .faq-index__group--feedback {
  --faq-dot: var(--orange);
}

.page-faq .faq-index__head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--steel);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  transition: color var(--t-fast) ease;
}

.page-faq .faq-index__head:hover,
.page-faq .faq-index__head:focus-visible {
  color: var(--faq-dot);
}

.page-faq .faq-index__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faq-dot);
  box-shadow: 0 0 0 3px rgba(242, 246, 255, 0.07);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__list a {
  display: block;
  padding: 7px 10px 7px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 8px 8px 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--text-mute);
  text-decoration: none;
  transition: color var(--t-fast) ease, background var(--t-fast) ease,
    border-color var(--t-fast) ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--white);
  background: rgba(27, 36, 56, 0.8);
  border-left-color: var(--faq-dot);
}

/* ---------- 答案区 ---------- */
.page-faq .faq-answers {
  min-width: 0;
}

.page-faq .faq-group {
  --faq-line: var(--green);
  --faq-line-soft: rgba(77, 240, 138, 0.32);
  margin-bottom: 58px;
  scroll-margin-top: 116px;
}

.page-faq .faq-group--data {
  --faq-line: var(--blue);
  --faq-line-soft: rgba(61, 139, 255, 0.32);
}

.page-faq .faq-group--squad {
  --faq-line: var(--amber);
  --faq-line-soft: rgba(255, 194, 77, 0.32);
}

.page-faq .faq-group--feedback {
  --faq-line: var(--orange);
  --faq-line-soft: rgba(255, 122, 47, 0.32);
}

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

.page-faq .faq-group__head {
  position: relative;
  display: grid;
  gap: 9px;
  padding-bottom: 22px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--steel);
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 76px;
  height: 2px;
  border-radius: 2px;
  background: var(--faq-line);
}

.page-faq .faq-group__head .index-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--faq-line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.page-faq .faq-group__sub {
  margin: 0;
  max-width: 620px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ---------- 单条问答 ---------- */
.page-faq .qa {
  margin: 0 0 4px;
  padding-left: 18px;
  border-left: 2px solid var(--faq-line-soft);
  scroll-margin-top: 116px;
  transition: border-color var(--t-fast) ease;
}

.page-faq .qa[open] {
  border-left-color: var(--faq-line);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  transition: color var(--t-fast) ease;
}

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

.page-faq .qa__q:hover {
  color: var(--faq-line);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
  border-radius: 4px;
}

.page-faq .qa__marker {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--faq-line-soft);
  border-radius: 50%;
  transition: border-color var(--t-fast) ease, background var(--t-fast) ease;
}

.page-faq .qa__marker::before,
.page-faq .qa__marker::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 1.5px;
  background: var(--faq-line);
  transform: translate(-50%, -50%);
  transition: transform var(--t-fast) ease, opacity var(--t-fast) ease;
}

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

.page-faq .qa[open] .qa__marker {
  border-color: var(--faq-line);
  background: rgba(242, 246, 255, 0.06);
}

.page-faq .qa[open] .qa__marker::after {
  opacity: 0;
}

.page-faq .qa__a {
  padding: 0 0 20px 30px;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .qa__a p {
  margin: 0 0 12px;
}

.page-faq .qa__a p:last-of-type {
  margin-bottom: 0;
}

.page-faq .qa__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 9px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  transition: background var(--t-fast) ease, border-color var(--t-fast) ease,
    color var(--t-fast) ease;
}

.page-faq .qa__link::after {
  content: "\2192";
  font-family: var(--font-mono);
  color: var(--faq-line);
  transition: color var(--t-fast) ease, transform var(--t-fast) ease;
}

.page-faq .qa__link:hover,
.page-faq .qa__link:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-faq .qa__link:hover::after,
.page-faq .qa__link:focus-visible::after {
  color: var(--ink);
  transform: translateX(3px);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 26px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  background: var(--board);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--text-faint);
}

/* ---------- 常见组合路径 ---------- */
.page-faq .faq-routes {
  position: relative;
  overflow: hidden;
  padding: 68px 0 80px;
  background: var(--ink-2);
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}

.page-faq .faq-routes::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(61, 139, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 139, 255, 0.07) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(circle at 30% 10%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 30% 10%, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-faq .faq-routes__head {
  position: relative;
  max-width: 660px;
  margin-bottom: 42px;
}

.page-faq .faq-routes__title {
  margin: 12px 0 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.page-faq .faq-routes__sub {
  margin: 14px 0 0;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--text-mute);
}

.page-faq .route-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-faq .route {
  --route-tone: var(--blue);
  padding: 24px 22px 22px;
  background: rgba(7, 11, 22, 0.6);
  border-left: 3px solid var(--route-tone);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: transform var(--t-fast) ease, box-shadow var(--t-fast) ease;
}

.page-faq .route:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.page-faq .route--2 {
  --route-tone: var(--green);
}

.page-faq .route--3 {
  --route-tone: var(--amber);
}

.page-faq .route--4 {
  --route-tone: var(--orange);
}

.page-faq .route__title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .route__note {
  margin: 0 0 20px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-mute);
}

.page-faq .route__steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .route__steps li {
  position: relative;
  padding-left: 38px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-faq .route__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--route-tone);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.page-faq .route__steps li::after {
  content: "";
  position: absolute;
  left: 11.5px;
  top: 28px;
  bottom: -14px;
  width: 1px;
  background: linear-gradient(180deg, var(--route-tone), transparent);
  opacity: 0.5;
}

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

.page-faq .faq-routes__foot {
  position: relative;
  margin: 40px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-mute);
}

.page-faq .faq-routes__foot a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 139, 255, 0.4);
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-faq .faq-routes__foot a:hover,
.page-faq .faq-routes__foot a:focus-visible {
  color: var(--green);
  border-bottom-color: var(--green);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .route-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 34px 0 78px;
  }

  .page-faq .faq-body {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 108px;
    max-height: calc(100vh - 150px);
    overflow-y: auto;
    border-top: none;
    padding-top: 0;
    padding-right: 4px;
  }

  .page-faq .faq-routes {
    padding: 88px 0 96px;
  }
}

@media (max-width: 480px) {
  .page-faq .breadcrumb {
    padding-top: 92px;
  }

  .page-faq .qa {
    padding-left: 12px;
  }

  .page-faq .qa__a {
    padding-left: 24px;
    font-size: 0.94rem;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .qa__marker,
  .page-faq .qa__marker::before,
  .page-faq .qa__marker::after,
  .page-faq .qa__link,
  .page-faq .qa__link::after,
  .page-faq .faq-index__list a,
  .page-faq .route {
    transition-duration: 0.01ms !important;
  }

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

  .page-faq .route:hover {
    transform: none;
  }
}