.page-faq {
  --faq-line: rgba(34, 224, 214, .22);
  --faq-step-col: clamp(34px, 9vw, 46px);
  --faq-gap: clamp(16px, 3vw, 22px);
  padding-bottom: clamp(40px, 8vw, 80px);
}

/* ---------- 面包屑与首屏 ---------- */

.page-faq .breadcrumb {
  width: min(940px, 92vw);
  margin-inline: auto;
  padding-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-hero {
  width: min(940px, 92vw);
  margin-inline: auto;
  padding: clamp(16px, 3vw, 28px) 0 clamp(30px, 5.5vw, 56px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-size: clamp(32px, 7.2vw, 66px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 现象定位器 ---------- */

.page-faq .faq-finder__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-finder__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.6vw, 36px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-faq .faq-finder__note {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .faq-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: rgba(22, 32, 74, .55);
  color: var(--ink);
  font-size: .9rem;
  line-height: 1.4;
  text-decoration: none;
  transition: background .22s var(--ease), border-color .22s var(--ease),
    color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-pill::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  transition: background .22s var(--ease);
}

.page-faq .faq-pill:hover,
.page-faq .faq-pill:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--on-accent);
  transform: translateY(-2px);
}

.page-faq .faq-pill:hover::before,
.page-faq .faq-pill:focus-visible::before {
  background: var(--on-accent);
}

.page-faq .figure-frame--faq {
  margin: 0;
  border: 1px solid var(--edge);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(22, 32, 74, .8), rgba(7, 11, 30, .6));
}

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

/* ---------- 分组区 ---------- */

.page-faq .faq-groups__title {
  margin: 10px 0 0;
  font-size: clamp(25px, 4.8vw, 38px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--ink);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 26px);
}

.page-faq .faq-group:first-of-type {
  margin-top: clamp(26px, 4.5vw, 44px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 5vw, 52px);
  padding-top: clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--edge-soft);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.6vw, 25px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--violet);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 3.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -.015em;
  color: var(--ink);
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-fold {
  margin-top: 16px;
  border: 1px solid var(--edge-soft);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(14, 21, 51, .86), rgba(14, 21, 51, .58));
  overflow: hidden;
  transition: border-color .25s var(--ease);
}

.page-faq .faq-fold[open] {
  border-color: var(--edge);
}

.page-faq .faq-fold__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 15px 17px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .faq-fold__summary::marker {
  content: "";
}

.page-faq .faq-fold__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-fold__meta {
  flex: 0 0 auto;
  padding: 3px 9px;
  border: 1px solid var(--edge-soft);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--mute);
  white-space: nowrap;
}

.page-faq .faq-fold__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-right: 3px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}

.page-faq .faq-fold[open] .faq-fold__chev {
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .faq-fold__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-fold .fold-body {
  padding: 2px 17px 18px;
}

/* ---------- 步骤列表 ---------- */

.page-faq .faq-steps {
  display: grid;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: var(--faq-step-col) minmax(0, 1fr);
  gap: clamp(12px, 2.4vw, 18px);
}

.page-faq .faq-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: calc(var(--faq-step-col) / 2);
  top: 38px;
  bottom: calc(-1 * var(--faq-gap));
  width: 1px;
  background: linear-gradient(180deg, var(--faq-line), rgba(34, 224, 214, 0));
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-step__body p:not(.faq-step__title) {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .faq-step__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--edge);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-step__body a:hover,
.page-faq .faq-step__body a:focus-visible {
  border-color: var(--cyan);
}

.page-faq .faq-after {
  margin: 18px 0 0;
  padding: 12px 15px;
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255, 138, 61, .07);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 兜底路径 ---------- */

.page-faq .faq-reach__grid {
  display: grid;
  gap: clamp(28px, 4vw, 50px);
  align-items: start;
}

.page-faq .faq-reach__title {
  margin: 10px 0 0;
  font-size: clamp(25px, 4.8vw, 40px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--ink);
}

.page-faq .faq-reach__lead {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .faq-reach__lead a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-reach__cards {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-reach__card {
  padding: 18px 18px 20px;
  border: 1px solid var(--edge-soft);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(22, 32, 74, .72), rgba(14, 21, 51, .5));
}

.page-faq .faq-reach__step {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--orange);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
}

.page-faq .faq-reach__card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .faq-reach__card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .faq-path {
  margin-top: clamp(20px, 3vw, 30px);
  padding: 16px 18px 14px;
  border: 1px solid var(--edge);
  border-radius: var(--r-md);
  background: rgba(7, 11, 30, .5);
}

.page-faq .faq-path__svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 460px;
}

.page-faq .faq-path__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--mute);
}

.page-faq .faq-path__legend li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.page-faq .faq-path__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.page-faq .faq-path__dot--start { background: var(--cyan); }
.page-faq .faq-path__dot--human { background: var(--orange); }
.page-faq .faq-path__dot--self { background: var(--violet); }

.page-faq .faq-reach__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin: clamp(22px, 3.4vw, 30px) 0 0;
  padding: 0;
}

.page-faq .faq-reach__facts > div {
  padding: 12px 14px;
  border-left: 2px solid var(--edge);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(7, 11, 30, .42);
}

.page-faq .faq-reach__facts dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--mute);
}

.page-faq .faq-reach__facts dd {
  margin: 5px 0 0;
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-reach__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(22px, 3vw, 30px) 0 0;
}

.page-faq .faq-reach__figure {
  margin: 0;
}

.page-faq .faq-reach__figure figcaption {
  padding: 12px 2px 0;
}

/* ---------- 相关入口 ---------- */

.page-faq .faq-next__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 26px;
  padding-top: clamp(14px, 2.4vw, 22px);
  border-top: 1px solid var(--edge-soft);
}

.page-faq .faq-next__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--mute);
}

.page-faq .faq-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.page-faq .faq-next__links a {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--edge);
  color: var(--ink);
  font-size: .92rem;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-next__links a:hover,
.page-faq .faq-next__links a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 响应式 ---------- */

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

@media (min-width: 920px) {
  .page-faq .faq-finder__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-reach__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (max-width: 560px) {
  .page-faq .breadcrumb {
    padding-top: calc(var(--header-h) + 12px);
  }

  .page-faq .faq-hero__title {
    font-size: clamp(28px, 8.4vw, 40px);
  }

  .page-faq .faq-fold__label {
    flex: 1 1 100%;
  }

  .page-faq .faq-fold__meta {
    margin-left: 0;
  }

  .page-faq .faq-step__body p:not(.faq-step__title) {
    font-size: .9rem;
  }

  .page-faq .faq-pill {
    font-size: .86rem;
    padding: 8px 13px;
  }
}

@media (max-width: 860px) {
  .page-faq {
    padding-bottom: calc(var(--dock-h, 62px) + 36px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-pill,
  .page-faq .faq-fold__chev,
  .page-faq .faq-fold,
  .page-faq .faq-next__links a {
    transition: none;
  }

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