.page-faq {
  display: block;
  background: var(--court);
}

.page-faq .crumbs {
  padding-top: clamp(14px, 2.4vw, 26px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--lime-hi);
}

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

.page-faq .crumbs__sep {
  margin: 0 8px;
  color: var(--orange);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding-bottom: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(200, 255, 77, .10), transparent 55%),
    linear-gradient(160deg, var(--deep) 0%, rgba(11, 31, 26, 0) 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  top: 22%;
  width: 44%;
  height: 1px;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, var(--orange));
  transform: rotate(-8deg);
  opacity: .5;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(20px, 3.2vw, 36px);
  padding-top: clamp(18px, 3vw, 34px);
  align-items: end;
}

.page-faq .faq-hero__lead .eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(28px, 5.2vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cream);
  max-width: 18em;
}

.page-faq .faq-hero__intro {
  margin: 0 0 22px;
  max-width: 46ch;
  color: rgba(242, 234, 216, .8);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-hero__stat {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin: 0;
  padding: 10px 16px;
  border-left: 3px solid var(--lime);
  background: rgba(20, 24, 27, .72);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-hero__stat .num {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1;
  font-weight: 700;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--char);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-faq .faq-hero__stamp {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 5px 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--court);
  background: var(--lime);
}

/* ---------- 提示带 ---------- */

.page-faq .faq-alert {
  margin-top: clamp(18px, 3vw, 32px);
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(255, 122, 47, .16), rgba(200, 255, 77, .05) 60%, rgba(11, 31, 26, 0));
}

.page-faq .faq-alert__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding-block: clamp(12px, 1.8vw, 18px);
}

.page-faq .faq-alert__tag {
  margin: 0;
  padding: 4px 10px;
  border: 1px solid rgba(255, 122, 47, .5);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .faq-alert__text {
  margin: 0;
  flex: 1 1 280px;
  color: rgba(242, 234, 216, .85);
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- 主体骨架 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding-block: clamp(26px, 4vw, 54px);
}

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

.page-faq .rail__label {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-faq .rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .rail__list li {
  flex: none;
}

.page-faq .rail__list a {
  display: block;
  padding: 9px 12px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  background: rgba(18, 58, 49, .45);
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-faq .rail__list a:hover,
.page-faq .rail__list a.is-active,
.page-faq .rail__list a[aria-current="true"] {
  color: var(--cream);
  background: rgba(200, 255, 77, .1);
  border-bottom-color: var(--lime);
}

.page-faq .rail__list a:focus-visible {
  outline: 2px solid var(--lime-hi);
  outline-offset: 2px;
}

/* ---------- 问答分组 ---------- */

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

.page-faq .faq-group.section {
  padding-block: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 68px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__no {
  flex: none;
  margin: 0;
  padding-top: 6px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--lime);
}

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

.page-faq .faq-group__meta h2 {
  margin: 0;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-group__note {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-faq .faq-figure {
  margin: 0 0 16px;
  max-width: 560px;
  border: 1px solid var(--line);
  background: var(--char);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 折叠答案卡 ---------- */

.page-faq .qa {
  position: relative;
  background: linear-gradient(180deg, rgba(20, 24, 27, .94), rgba(11, 31, 26, .9));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background .2s ease;
}

.page-faq .qa:hover {
  border-color: rgba(242, 234, 216, .3);
}

.page-faq .qa[open] {
  border-color: rgba(200, 255, 77, .6);
  background: linear-gradient(180deg, rgba(18, 58, 49, .92), rgba(11, 31, 26, .92));
}

.page-faq .qa[open]::before {
  background: var(--lime);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px clamp(14px, 2.2vw, 22px) 15px clamp(18px, 2.4vw, 24px);
  list-style: none;
  cursor: pointer;
  font-family: var(--hei);
  font-weight: 700;
  font-size: clamp(15px, 1.65vw, 17px);
  line-height: 1.55;
  color: var(--cream);
  transition: color .2s ease;
}

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

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

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

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--lime-hi);
  outline-offset: 2px;
}

.page-faq .qa__id {
  flex: none;
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  padding-top: 2px;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--lime);
}

.page-faq .qa__a {
  padding: 14px clamp(14px, 2.2vw, 22px) 18px;
  border-top: 1px solid var(--line-soft);
  color: rgba(242, 234, 216, .82);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

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

/* ---------- 步骤节点 ---------- */

.page-faq .steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  list-style: none;
  margin: 14px 0 12px;
  padding: 0;
}

.page-faq .steps__item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  background: rgba(18, 58, 49, .72);
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.4;
  color: var(--cream);
}

.page-faq .steps__item + .steps__item::before {
  content: "/";
  position: absolute;
  left: -11px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--orange);
}

.page-faq .steps__no {
  color: var(--lime);
  font-weight: 700;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-next {
  padding-block: clamp(30px, 4.5vw, 58px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 58, 49, .55), rgba(11, 31, 26, 0));
}

.page-faq .faq-next__inner {
  max-width: 760px;
}

.page-faq .faq-next h2 {
  margin: 0 0 10px;
  font-family: var(--hei);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 30px);
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-next p {
  margin: 0 0 18px;
  color: rgba(242, 234, 216, .8);
  font-size: 15px;
  line-height: 1.78;
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-body {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .rail__list li {
    flex: 1 1 auto;
  }

  .page-faq .rail__list a {
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 10px 14px;
  }

  .page-faq .rail__list a:hover,
  .page-faq .rail__list a.is-active,
  .page-faq .rail__list a[aria-current="true"] {
    border-bottom-color: transparent;
    border-left-color: var(--lime);
  }
}

@media (max-width: 559px) {
  .page-faq .faq-group__head {
    gap: 10px;
  }

  .page-faq .qa__q {
    gap: 9px;
  }

  .page-faq .qa__q::after {
    padding-top: 0;
  }

  .page-faq .steps {
    gap: 8px;
  }

  .page-faq .steps__item {
    width: 100%;
  }

  .page-faq .steps__item + .steps__item::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa::before,
  .page-faq .rail__list a,
  .page-faq .qa__q {
    transition: none;
  }
}