.page-faq {
  --faq-anchor: 96px;
  --faq-ink-soft: #333a47;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--cool-white);
  padding-block: clamp(20px, 3vw, 36px) clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(231, 237, 245, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(231, 237, 245, .07) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: radial-gradient(circle at 72% 42%, #000 0%, transparent 74%);
  mask-image: radial-gradient(circle at 72% 42%, #000 0%, transparent 74%);
}

.page-faq .faq-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(20px, 4vw, 44px);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: #fff;
  margin: 14px 0 18px;
  max-width: 18ch;
}

.page-faq .faq-hero .lead {
  color: rgba(231, 237, 245, .82);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  max-width: 46ch;
  margin: 0;
}

.page-faq .faq-hero__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-hero__tags li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.4;
  padding: 7px 11px;
  color: var(--cool-white);
  border: 1px solid var(--rule-strong);
  background: rgba(20, 41, 74, .55);
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--rule-strong);
  background: rgba(20, 41, 74, .55);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.92);
}

.page-faq .faq-hero__figure .media-caption {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 正文阅读区 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  color: var(--ink);
  padding-block: clamp(32px, 5vw, 64px) clamp(40px, 6vw, 84px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-layout > * {
  min-width: 0;
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--rule-ink);
  background: rgba(255, 255, 255, .5);
  padding: 16px 16px 8px;
}

.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lake);
}

.page-faq .faq-index__group + .faq-index__group {
  margin-top: 6px;
}

.page-faq .faq-index__head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-ink);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 6px 0 12px;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index__list a {
  display: block;
  padding: 7px 8px 7px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.5;
  color: var(--slate);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--gold);
  background: rgba(232, 181, 75, .16);
}

/* ---------- 答案分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-anchor);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(30px, 4.5vw, 54px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.6vw, 29px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-group__note {
  margin: 12px 0 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  max-width: 52ch;
}

.page-faq .faq-figure {
  margin: 18px 0 6px;
  padding: 8px;
  border: 1px solid var(--rule-ink);
  background: #fff;
}

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

.page-faq .faq-figure .media-caption {
  display: block;
  padding: 8px 4px 2px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--rule-ink);
  scroll-margin-top: var(--faq-anchor);
}

.page-faq .faq-q:target {
  background: rgba(232, 181, 75, .12);
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q__summary:hover {
  color: var(--lake);
}

.page-faq .faq-q__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--rule-ink);
  background: rgba(255, 255, 255, .6);
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1.5px;
  background: var(--ink);
  transform: translateY(-50%);
}

.page-faq .faq-q__sign::after {
  transform: translateY(-50%) rotate(90deg);
  transition: opacity var(--dur) var(--ease);
}

.page-faq .faq-q[open] .faq-q__sign {
  border-color: var(--gold);
  background: rgba(232, 181, 75, .3);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 0 4px 24px;
}

.page-faq .faq-q__answer {
  margin: 0 0 16px;
  padding: 12px 14px;
  background: rgba(232, 181, 75, .2);
  border-left: 3px solid var(--gold);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-q__body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
  margin: 0 0 14px;
  max-width: 62ch;
}

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

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

.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 62ch;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
}

.page-faq .faq-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 10.5px;
  top: 27px;
  bottom: -9px;
  width: 1px;
  background: rgba(222, 95, 58, .38);
}

/* ---------- 底部联络条 ---------- */
.page-faq .faq-contact {
  background: var(--night);
  color: var(--cool-white);
  padding-block: clamp(34px, 5vw, 68px);
}

.page-faq .faq-contact__bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 44px);
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid var(--rule-strong);
  background: linear-gradient(135deg, rgba(20, 41, 74, .92), rgba(8, 17, 30, .94));
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-faq .faq-contact__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-contact h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: #fff;
}

.page-faq .faq-contact__copy p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(231, 237, 245, .8);
  margin: 0 0 22px;
  max-width: 44ch;
}

.page-faq .faq-contact__channels {
  display: grid;
  gap: 0;
}

.page-faq .faq-channel {
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}

.page-faq .faq-channel__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lake);
}

.page-faq .faq-channel__value {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  letter-spacing: .01em;
  line-height: 1.5;
  color: #fff;
  overflow-wrap: anywhere;
}

.page-faq .faq-channel__value--sm {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--cool-white);
}

.page-faq .faq-channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-contact__foot {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-contact__foot a {
  color: var(--cool-white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-contact a.btn {
  display: inline-block;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-contact__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }

  .page-faq .faq-channel:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }

  .page-faq .faq-contact__bar {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-anchor);
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    scrollbar-width: thin;
  }

  .page-faq .faq-index::-webkit-scrollbar {
    width: 5px;
  }

  .page-faq .faq-index::-webkit-scrollbar-thumb {
    background: rgba(26, 31, 41, .22);
    border-radius: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-q__summary,
  .page-faq .faq-q__sign::after {
    transition: none;
  }
}
<<<END>>>