.page-faq {
  --faq-panel: rgba(16, 41, 35, 0.72);
  --faq-line: rgba(169, 184, 178, 0.16);
  background: var(--ink-900);
  color: var(--white);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--hdr-h) + 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--hdr-h) + 40px) 0 48px;
  background:
    radial-gradient(120% 100% at 85% 0%, rgba(11, 29, 51, 0.92), transparent 62%),
    linear-gradient(165deg, var(--ink-900) 0%, var(--night) 100%);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
}

.page-faq .faq-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.75);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(61, 255, 178, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(61, 255, 178, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

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

.page-faq .faq-hero .crumbs {
  margin-bottom: 26px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  max-width: 58ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.page-faq .faq-jump .btn {
  flex: 1 1 auto;
  justify-content: center;
  white-space: normal;
  text-align: center;
}

/* ---------- 三步确认 ---------- */
.page-faq .faq-path {
  padding: 44px 0 48px;
  background: var(--ink-850);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-path__head {
  max-width: 44ch;
  margin-bottom: 30px;
}

.page-faq .faq-path__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.15;
}

.page-faq .faq-path__steps {
  display: grid;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-path__step {
  position: relative;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-path__step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--citeal);
}

.page-faq .faq-path__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-faq .faq-path__step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-path__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: 48px 0 64px;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  display: grid;
  gap: 24px;
  min-width: 0;
}

.page-faq .faq-index__nav .rail-label {
  margin: 0 0 14px;
  color: var(--mist);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-index__list a {
  display: block;
  padding: 13px 0 13px 14px;
  border-left: 2px solid transparent;
  color: var(--pale);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--citeal);
  border-left-color: var(--citeal);
  background: rgba(61, 255, 178, 0.06);
}

.page-faq .faq-index__help {
  padding: 20px;
  border: 1px solid var(--faq-line);
  border-radius: 14px;
  background: var(--faq-panel);
}

.page-faq .faq-index__help-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-index__help-text {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-copy {
  display: block;
  width: 100%;
  margin-bottom: 12px;
  padding: 12px 14px;
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  background: transparent;
  color: var(--white);
  font-family: var(--font-body);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  border-color: var(--citeal);
  background: rgba(61, 255, 178, 0.07);
}

.page-faq .faq-copy__label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 5px;
}

.page-faq .faq-copy__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  word-break: break-all;
  color: var(--citeal);
}

.page-faq .faq-copy[data-copied] {
  border-color: var(--citeal);
  border-style: solid;
  background: rgba(61, 255, 178, 0.1);
}

.page-faq .faq-index__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid var(--faq-line);
}

/* ---------- 问答组 ---------- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-group__head {
  margin-bottom: 24px;
  max-width: 52ch;
}

.page-faq .faq-group__tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 194, 75, 0.12);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-faq .faq-group__head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4.6vw, 40px);
  line-height: 1.12;
  color: var(--white);
}

.page-faq .faq-group__head .note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

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

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

.page-faq .accordion__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 18px 0;
  border: 0;
  background: none;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

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

.page-faq .accordion__trigger[aria-expanded="true"] {
  color: var(--citeal);
}

.page-faq .accordion__icon {
  position: relative;
  flex: none;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .accordion__icon::before,
.page-faq .accordion__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .accordion__icon::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .accordion__icon::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon {
  border-color: var(--citeal);
  background: rgba(61, 255, 178, 0.12);
}

.page-faq .accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .accordion__panel {
  padding: 0 0 22px;
  padding-right: 30px;
}

.page-faq .accordion__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

/* ---------- 联系前准备 ---------- */
.page-faq .faq-group--contact .faq-prep {
  display: grid;
  gap: 24px;
}

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

.page-faq .faq-prep__list li {
  padding: 14px 0 14px 16px;
  border-left: 2px solid var(--steel);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  background: linear-gradient(90deg, rgba(92, 116, 128, 0.12), transparent 70%);
}

.page-faq .faq-prep__key {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
}

.page-faq .faq-prep__card {
  padding: 24px 20px;
  border: 1px solid rgba(255, 194, 75, 0.28);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 194, 75, 0.09), rgba(16, 41, 35, 0.75) 60%);
}

.page-faq .faq-prep__card-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
}

.page-faq .faq-prep__meta {
  margin: 0 0 20px;
  display: grid;
  gap: 12px;
}

.page-faq .faq-prep__meta dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  margin-bottom: 3px;
}

.page-faq .faq-prep__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: calc(var(--hdr-h) + 64px) 0 64px;
  }

  .page-faq .faq-hero .lede {
    font-size: 16px;
  }

  .page-faq .faq-jump .btn {
    flex: 0 0 auto;
  }

  .page-faq .faq-path__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-prep {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-hero {
    padding: calc(var(--hdr-h) + 84px) 0 78px;
  }

  .page-faq .faq-hero h1 {
    max-width: 13em;
  }

  .page-faq .faq-path {
    padding: 60px 0 64px;
  }

  .page-faq .faq-body {
    padding: 72px 0 96px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--hdr-h) + 28px);
    gap: 28px;
  }

  .page-faq .accordion__trigger {
    font-size: 17px;
    padding: 20px 0;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 72px;
    padding-top: 52px;
  }
}

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