.page-faq {
  --faq-gap: clamp(18px, 4vw, 44px);
  --faq-pad: clamp(28px, 5vw, 60px);
  --faq-soft: rgba(201, 207, 221, 0.18);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: var(--faq-pad) 0 calc(var(--faq-pad) + 4px);
  background: linear-gradient(115deg, var(--ink-deep) 0 46%, var(--ink) 46% 100%);
  color: var(--paper);
  border-bottom: 4px solid transparent;
  border-image: var(--flag-band) 1;
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-size: var(--t-14);
  color: var(--mist);
}

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

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

.page-faq .faq-hero .breadcrumb__item[aria-current] {
  color: var(--gold);
}

.page-faq .faq-hero .breadcrumb__sep {
  color: var(--mist);
  opacity: 0.55;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: center;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero .lede {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: var(--t-16);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink);
  box-shadow: 10px 10px 0 rgba(233, 180, 92, 0.22);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-hero__cap {
  padding: 10px 12px;
  border-top: 1px solid var(--faq-soft);
  background: rgba(7, 12, 28, 0.62);
  font-size: var(--t-12);
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(28px, 5vw, 64px) 0 clamp(20px, 4vw, 44px);
  background: var(--paper);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(20px, 3vw, 44px);
  align-items: start;
}

/* 侧栏分组导航 */
.page-faq .faq-side__title {
  margin: 0 0 12px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-serif);
  font-size: var(--t-16);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--rust);
}

.page-faq .faq-side__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .faq-side__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: var(--t-14);
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  border-radius: 0;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-faq .faq-side__link .num {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  color: var(--rust);
}

.page-faq .faq-side__link:hover {
  border-color: var(--gold);
  background: rgba(233, 180, 92, 0.14);
}

.page-faq .faq-side__link.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: inset 0 3px 0 var(--turq);
}

.page-faq .faq-side__link.is-active .num {
  color: var(--cyan);
}

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

.page-faq .faq-side__note {
  margin: 14px 0 0;
  font-size: var(--t-12);
  line-height: 1.7;
  color: var(--line);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 84px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(28px, 4.5vw, 52px);
}

.page-faq .faq-group__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}

.page-faq .faq-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 76px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--gold) 0 6px, transparent 6px 13px);
}

.page-faq .faq-group .serif-index {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--t-18);
  color: var(--rust);
  line-height: 1;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 29px);
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-group__desc {
  margin: 0 0 18px;
  max-width: 46em;
  font-size: var(--t-16);
  line-height: 1.78;
  color: var(--line);
}

/* 入口路径图 */
.page-faq .faq-path {
  margin: 0 0 20px;
  padding: 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 8px 8px 0 rgba(16, 27, 60, 0.08);
}

.page-faq .faq-path img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-path figcaption {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: 0.02em;
  color: var(--line);
}

/* ---------- 折叠问答 ---------- */
.page-faq .acc {
  border-top: 1px dotted var(--line);
}

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

.page-faq .acc__trigger {
  position: relative;
  display: block;
  width: 100%;
  padding: 15px 48px 15px 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-display);
  font-size: var(--t-16);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
  transition: color 180ms ease;
}

.page-faq .acc__trigger:hover {
  color: var(--rust);
}

.page-faq .acc__trigger:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .acc__item[data-open="true"] .acc__trigger {
  color: var(--rust);
}

.page-faq .acc__sign {
  position: absolute;
  right: 2px;
  top: 50%;
  width: 22px;
  height: 22px;
  margin-left: 0;
  transform: translateY(-50%);
  border: 1px solid var(--line);
  color: var(--line);
  transition: color 200ms ease, border-color 200ms ease;
}

.page-faq .acc__sign::before,
.page-faq .acc__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .acc__sign::before {
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 2px;
  margin-left: -1px;
  transition: opacity 200ms ease, transform 200ms ease;
}

.page-faq .acc__sign::after {
  top: 50%;
  left: 5px;
  right: 5px;
  height: 2px;
  margin-top: -1px;
}

.page-faq .acc__item[data-open="true"] .acc__sign {
  color: var(--gold);
  border-color: var(--gold);
}

.page-faq .acc__item[data-open="true"] .acc__sign::before {
  opacity: 0;
  transform: scaleY(0.2);
}

.page-faq .acc__panel {
  overflow: hidden;
}

.page-faq .acc__inner {
  max-width: 64ch;
  padding: 0 0 18px;
  font-size: var(--t-16);
  line-height: 1.8;
  color: var(--line);
}

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

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

.page-faq .acc__inner a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--turq);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .acc__inner a:hover {
  color: var(--rust);
  text-decoration-color: var(--rust);
}

/* ---------- 底部联系 ---------- */
.page-faq .faq-help {
  margin-top: clamp(24px, 4vw, 48px);
  padding: var(--faq-pad) 0;
  background: var(--ink);
  color: var(--paper);
  border-top: 4px solid transparent;
  border-image: var(--flag-band) 1;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 44px);
  align-items: start;
}

.page-faq .faq-help__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-help__text {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: var(--t-16);
  line-height: 1.8;
  color: var(--mist);
}

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

.page-faq .faq-help__list li {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--faq-soft);
}

.page-faq .faq-help__key {
  font-family: var(--font-mono);
  font-size: var(--t-12);
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-help__val {
  font-size: var(--t-16);
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__foot {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 6px;
  font-size: var(--t-14);
  line-height: 1.75;
  color: var(--mist);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-faq .faq-path {
    max-width: 560px;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 214px minmax(0, 1fr);
  }

  .page-faq .faq-side__inner {
    position: sticky;
    top: 26px;
  }

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

  .page-faq .faq-side__link {
    white-space: normal;
  }

  .page-faq .faq-side__link.is-active {
    box-shadow: inset 3px 0 0 var(--turq);
  }

  .page-faq .faq-group {
    scroll-margin-top: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .acc__trigger,
  .page-faq .acc__sign,
  .page-faq .acc__sign::before,
  .page-faq .faq-side__link {
    transition: none;
  }
}
<<<END>>>