.page-faq {
  --faq-rail-w: 236px;
  --faq-gap: clamp(28px, 4vw, 56px);
  --faq-radius: 10px;
  background: var(--ink-deep);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 6vw, 88px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--ink-line);
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(111, 233, 255, 0.17), transparent 58%),
    radial-gradient(92% 74% at 6% 104%, rgba(255, 107, 44, 0.13), transparent 62%),
    var(--ink-deep);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(16, 32, 58, 0.95) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16, 32, 58, 0.95) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}

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

.page-faq .faq-hero__kicker {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 20ch;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-hero__fact-num {
  margin-right: 6px;
  font-family: var(--font-num);
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  color: var(--heat);
}

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 620px;
  height: 56px;
  margin-top: clamp(26px, 4vw, 38px);
  padding: 0 16px;
  border: 1px solid rgba(111, 233, 255, 0.28);
  border-radius: var(--faq-radius);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
}

.page-faq .faq-search__icon {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  border: 1.5px solid var(--mist);
  border-radius: 50%;
  position: relative;
}

.page-faq .faq-search__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 6px;
  height: 1.5px;
  background: var(--mist);
  transform: rotate(45deg);
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  border: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(159, 176, 200, 0.7);
}

.page-faq .faq-search__kbd {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid var(--ink-line);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding: clamp(44px, 6vw, 84px) 0 clamp(64px, 9vw, 128px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 40px);
}

/* ---------- 左侧分类刻度 ---------- */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-rail__chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-faq .faq-rail__chips::-webkit-scrollbar {
  display: none;
}

.page-faq .chip {
  flex: 0 0 auto;
  padding: 10px 14px;
  border: 1px solid var(--ink-line);
  border-radius: 999px;
  background: rgba(11, 20, 40, 0.85);
  color: var(--mist);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .chip:hover {
  color: var(--paper);
  border-color: rgba(111, 233, 255, 0.5);
}

.page-faq .chip[aria-pressed="true"],
.page-faq .chip[data-active="true"] {
  color: var(--ink-deep);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}

.page-faq .faq-rail__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-rail__cta {
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(255, 107, 44, 0.5);
  color: var(--heat);
  font-size: 14px;
  text-decoration: none;
}

.page-faq .faq-rail__cta:hover {
  border-bottom-color: var(--heat);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: clamp(44px, 5.5vw, 76px);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 32px);
}

.page-faq .faq-group[hidden] {
  display: none;
}

.page-faq .faq-group__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--ink-line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-group__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 速查表 ---------- */
.page-faq .faq-quick {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--ink-line);
  overflow: hidden;
}

.page-faq .faq-quick__item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink-base);
  transition: background 0.24s var(--ease);
}

.page-faq .faq-quick__item:hover {
  background: #0E1A33;
}

.page-faq .faq-quick__q {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

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

/* ---------- 折叠面板 ---------- */
.page-faq .accordion {
  margin-bottom: 10px;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--glass);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .accordion:hover {
  transform: translateY(-2px);
  border-color: rgba(111, 233, 255, 0.42);
}

.page-faq .accordion[data-open],
.page-faq .accordion.is-open {
  background: rgba(11, 20, 40, 0.88);
  border-color: var(--cyan);
}

.page-faq .accordion__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 16px 18px;
  border: 0;
  background: none;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .accordion__trigger::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--ink-line);
  box-shadow: 0 0 0 1px rgba(111, 233, 255, 0.25);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .accordion__trigger[aria-expanded="true"]::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(111, 233, 255, 0.16);
}

.page-faq .accordion__trigger::after {
  content: "+";
  margin-left: auto;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--cyan);
}

.page-faq .accordion__trigger[aria-expanded="true"]::after {
  content: "−";
}

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

.page-faq .accordion__inner {
  padding: 16px 18px 20px 38px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

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

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

.page-faq .faq-note {
  padding-left: 12px;
  border-left: 2px solid rgba(255, 107, 44, 0.8);
  color: var(--mist);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  margin: 10px 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps > li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 30px;
  line-height: 1.7;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(111, 233, 255, 0.45);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 20px;
  text-align: center;
  color: var(--cyan);
}

/* ---------- 兼容章节配图 ---------- */
.page-faq .faq-media {
  display: grid;
  gap: 16px;
  margin-bottom: 22px;
}

.page-faq .faq-media figure {
  margin: 0;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--ink-base);
}

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

.page-faq .faq-media__side .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 11;
  object-fit: cover;
}

.page-faq .faq-media .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--ink-line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact__card {
  padding: 22px 20px;
  border: 1px solid var(--ink-line);
  border-radius: var(--faq-radius);
  background: var(--ink-base);
}

.page-faq .faq-contact__card--primary {
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 107, 44, 0.16), transparent 62%),
    var(--ink-base);
  border-color: rgba(255, 107, 44, 0.45);
}

.page-faq .faq-contact__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-contact__card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact__hours {
  margin: 14px 0 0 !important;
  font-size: 13px !important;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .copy-btn {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  width: 100%;
  margin-bottom: 8px;
  padding: 11px 14px;
  border: 1px solid var(--ink-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--paper);
  font-family: var(--font-sans);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: rgba(111, 233, 255, 0.55);
  background: rgba(111, 233, 255, 0.07);
}

.page-faq .copy-btn__label {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .copy-btn__value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
  color: var(--cyan);
}

.page-faq .copy-btn__hint {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--mist);
}

.page-faq .copy-btn.is-copied {
  border-color: var(--cyan);
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-contact__links a {
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(111, 233, 255, 0.35);
  color: var(--paper);
  text-decoration: none;
}

.page-faq .faq-contact__links a:hover {
  border-bottom-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 返回顶部 ---------- */
.page-faq .backtop {
  position: fixed;
  right: 18px;
  bottom: 22px;
  z-index: 40;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(111, 233, 255, 0.42);
  border-radius: 50%;
  background: rgba(11, 20, 40, 0.92);
  color: var(--cyan);
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.24s var(--ease), visibility 0.24s var(--ease);
}

.page-faq .backtop[data-visible],
.page-faq .backtop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quick__item {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    gap: 20px;
    align-items: baseline;
    padding: 18px 22px;
  }

  .page-faq .faq-media {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-faq .accordion__trigger {
    padding: 18px 22px;
  }

  .page-faq .accordion__inner {
    padding: 18px 22px 24px 42px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-gap);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    padding-right: 8px;
    border-right: 1px solid var(--ink-line);
  }

  .page-faq .faq-rail__chips {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 4px;
  }

  .page-faq .chip {
    width: 100%;
    text-align: left;
    border-radius: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion,
  .page-faq .chip,
  .page-faq .backtop,
  .page-faq .copy-btn,
  .page-faq .faq-quick__item {
    transition: none;
  }

  .page-faq .accordion:hover {
    transform: none;
  }
}
<<<END>>>