.page-faq {
  --faq-rail-w: 264px;
  --faq-text: #3d5254;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 104px 0 clamp(40px, 6vw, 68px);
  background:
    radial-gradient(120% 100% at 88% -10%, rgba(231, 178, 74, .20), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(44, 154, 140, .22), transparent 62%),
    linear-gradient(158deg, #0E4450 0%, #062A32 72%);
  color: var(--paper);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(247, 242, 231, .05) 0 1px, transparent 1px 58px);
  pointer-events: none;
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .crumbs ul {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 13px;
}

.page-faq .faq-hero .crumbs li {
  display: flex;
  align-items: center;
}

.page-faq .faq-hero .crumbs li + li::before {
  content: "/";
  margin: 0 9px;
  color: rgba(247, 242, 231, .38);
}

.page-faq .faq-hero .crumbs a,
.page-faq .faq-hero .crumbs [aria-current="page"] {
  color: rgba(247, 242, 231, .74);
  text-decoration: none;
}

.page-faq .faq-hero .crumbs a:hover {
  color: var(--gold);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 12px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold);
  border: 1px solid rgba(231, 178, 74, .55);
  background: rgba(231, 178, 74, .08);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-faq .faq-hero__dek {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, .82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  background: rgba(247, 242, 231, .18);
  border: 1px solid rgba(247, 242, 231, .18);
}

.page-faq .faq-hero__facts > div {
  background: rgba(6, 42, 50, .74);
  padding: 14px 16px;
}

.page-faq .faq-hero__facts dt {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--gold);
}

.page-faq .faq-hero__facts dd {
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(247, 242, 231, .72);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(231, 178, 74, .4);
  box-shadow: 14px 14px 0 rgba(231, 178, 74, .14);
}

.page-faq .faq-hero__figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(247, 242, 231, .62);
}

/* ---------- 差异速查条 ---------- */
.page-faq .faq-speedbar {
  background: linear-gradient(96deg, #2C9A8C 0%, #23867A 100%);
  border-bottom: 3px solid rgba(6, 42, 50, .28);
}

.page-faq .faq-speedbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  padding-top: 13px;
  padding-bottom: 13px;
}

.page-faq .faq-speedbar__badge {
  flex: 0 0 auto;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--ink-deep);
  background: var(--coral);
}

.page-faq .faq-speedbar__text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.65;
  color: #06262B;
}

.page-faq .faq-speedbar__link {
  flex: 0 0 auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-deep);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--ink-deep);
}

.page-faq .faq-speedbar__link:hover {
  color: #03202a;
  border-bottom-color: #03202a;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
  padding-top: clamp(32px, 5vw, 60px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 目录栏 ---------- */
.page-faq .faq-rail {
  padding: 18px 16px;
  background: var(--card-paper);
  border: 1px solid var(--line);
  box-shadow: 6px 6px 0 rgba(6, 42, 50, .06);
}

.page-faq .faq-rail__label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-rail__tree {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  position: relative;
}

.page-faq .faq-rail__tree::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: var(--line-strong);
}

.page-faq .faq-rail__tree li {
  position: relative;
}

.page-faq .faq-rail__tree li::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  transform: translateY(-50%);
  width: 9px;
  height: 9px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--muted);
}

.page-faq .faq-rail__link {
  display: block;
  padding: 9px 12px;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-rail__link:hover {
  background: rgba(245, 228, 184, .55);
}

.page-faq .faq-rail__link[aria-current="true"] {
  background: var(--paper-gold);
  border-left-color: var(--gold);
  font-weight: 700;
  color: var(--ink-deep);
}

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

.page-faq .faq-rail__meta {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  min-width: 0;
}

.page-faq .faq-sec {
  scroll-margin-top: calc(var(--header-offset) + 24px);
  min-width: 0;
}

.page-faq .faq-sec__num {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--gold);
  background: var(--ink-deep);
}

.page-faq .faq-sec__title {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(23px, 3.3vw, 33px);
  line-height: 1.28;
  color: var(--ink);
}

.page-faq .faq-sec__lead {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-text);
}

/* ---------- 目录四类 ---------- */
.page-faq .faq-cats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  background: var(--card-paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--lane);
  box-shadow: 4px 4px 0 rgba(6, 42, 50, .05);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-cat:nth-child(2) {
  border-left-color: var(--turquoise);
}

.page-faq .faq-cat:nth-child(3) {
  border-left-color: var(--gold);
}

.page-faq .faq-cat:nth-child(4) {
  border-left-color: var(--brick);
}

.page-faq .faq-cat:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(6, 42, 50, .09);
}

.page-faq .faq-cat__code {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-size: 16px;
  font-weight: 700;
  color: var(--gold);
  background: var(--ink-deep);
}

.page-faq .faq-cat__name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .faq-cat__desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-cat__tag {
  display: inline-block;
  margin: 10px 0 0;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--lane);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-cats__note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--paper-gold);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  margin-top: 26px;
  border-top: 2px solid var(--ink-deep);
}

.page-faq .qa__item {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 10px;
  cursor: pointer;
  list-style: none;
  transition: background .18s var(--ease);
}

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

.page-faq .qa__q:hover {
  background: rgba(245, 228, 184, .34);
}

.page-faq .qa__item[open] > .qa__q {
  background: rgba(44, 154, 140, .09);
}

.page-faq .qa__code {
  flex: 0 0 58px;
  padding-top: 3px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--lane);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin-left: auto;
  margin-top: 2px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ink);
  transition: transform .2s var(--ease);
}

.page-faq .qa__mark::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__mark::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .qa__item[open] .qa__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .qa__a {
  padding: 0 10px 20px;
}

.page-faq .qa__conclusion {
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--turquoise);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .steps li {
  counter-increment: faqstep;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  background: var(--card-paper);
  border: 1px solid var(--line-strong);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .steps li::before {
  content: counter(faqstep);
  display: grid;
  place-items: center;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  background: var(--lane);
  color: var(--paper-gold);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

/* ---------- 两端对照 ---------- */
.page-faq .cmp {
  margin-top: 26px;
  border-top: 2px solid var(--ink-deep);
}

.page-faq .cmp__row {
  display: grid;
  gap: 8px;
  padding: 14px 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .cmp__row:nth-child(odd) {
  background: rgba(44, 154, 140, .05);
}

.page-faq .cmp__row--head {
  display: none;
}

.page-faq .cmp__op {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .cmp__cell {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--faq-text);
}

.page-faq .cmp__cell::before {
  content: attr(data-label);
  display: block;
  margin-bottom: 3px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-faq .cmp__foot {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .cmp__foot a {
  color: var(--lane);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .cmp__foot a:hover {
  color: var(--brick);
}

/* ---------- 资料下载 ---------- */
.page-faq .dl {
  margin: 26px 0 0;
  display: grid;
  gap: 14px;
}

.page-faq .dl__item {
  padding: 18px;
  background: var(--card-paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--turquoise);
  box-shadow: 4px 4px 0 rgba(6, 42, 50, .05);
}

.page-faq .dl__code {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 8px;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--lane);
  background: rgba(44, 154, 140, .13);
}

.page-faq .dl__q {
  margin: 0 0 10px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .dl__a {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text);
}

/* ---------- 反馈区 ---------- */
.page-faq .fb {
  margin-top: 26px;
  display: grid;
  gap: 24px;
  padding: 22px;
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(231, 178, 74, .16), transparent 60%),
    var(--ink-deep);
  border: 1px solid rgba(231, 178, 74, .35);
  color: var(--paper);
}

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

.page-faq .fb__list li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(247, 242, 231, .88);
}

.page-faq .fb__list li::before {
  content: "✓";
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  background: rgba(231, 178, 74, .16);
  border: 1px solid rgba(231, 178, 74, .5);
  color: var(--gold);
  font-size: 12px;
  line-height: 1;
}

.page-faq .fb__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(247, 242, 231, .24);
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, .74);
}

.page-faq .fb__note a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .fb__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

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

.page-faq .fb__figure img {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 auto;
  border: 1px solid rgba(231, 178, 74, .4);
  box-shadow: 10px 10px 0 rgba(231, 178, 74, .12);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 700px) {
  .page-faq .qa__a {
    padding-left: 80px;
  }
}

@media (min-width: 780px) {
  .page-faq .cmp__row {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
    padding: 15px 12px;
  }

  .page-faq .cmp__row--head {
    display: grid;
    background: var(--lane);
    border-bottom: 0;
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: .14em;
    color: var(--paper-gold);
  }

  .page-faq .cmp__row--head span {
    color: var(--paper-gold);
  }

  .page-faq .cmp__cell::before {
    display: none;
  }

  .page-faq .dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 820px) {
  .page-faq .fb {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 32px;
    padding: 28px;
    align-items: start;
  }

  .page-faq .fb__figure img {
    margin: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 132px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 0 56px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-offset) + 22px);
    align-self: start;
    padding: 20px 0 0;
    background: transparent;
    border: 0;
    border-top: 3px solid var(--ink-deep);
    box-shadow: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .qa__q,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after {
    transition: none;
  }

  .page-faq .faq-cat:hover {
    transform: none;
  }
}
</main>