.page-faq {
  --faq-gap: clamp(20px, 4vw, 42px);
  --faq-pad: clamp(16px, 2.4vw, 26px);
}

.page-faq .crumbs {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(22px, 3vw, 34px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--shell);
  max-width: 22ch;
  overflow-wrap: break-word;
}

.page-faq .faq-hero .lede {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .hero-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 22px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .hero-strip span {
  padding-left: 10px;
  border-left: 2px solid var(--deep);
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding: clamp(24px, 4vw, 46px) 0 clamp(44px, 6vw, 84px);
  align-items: start;
}

@media (min-width: 940px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  padding: 18px 16px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 48, 69, 0.9), rgba(10, 27, 41, 0.55));
  min-width: 0;
}

@media (min-width: 940px) {
  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }
}

.page-faq .fi-kicker {
  margin: 0 0 6px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--glow);
}

.page-faq .fi-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--shell);
}

.page-faq .fi-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .fi-link {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 8px 8px 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .fi-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 2px;
  background: transparent;
  transition: background 0.22s var(--ease);
}

.page-faq .fi-link:hover,
.page-faq .fi-link:focus-visible {
  color: var(--shell);
  background: rgba(28, 74, 99, 0.55);
}

.page-faq .fi-link:hover::before,
.page-faq .fi-link:focus-visible::before {
  background: var(--glow);
}

.page-faq .fi-no {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-faq .fi-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .fi-note a {
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 224, 206, 0.35);
}

/* ---------- 右栏章节 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(34px, 5vw, 60px);
  min-width: 0;
}

.page-faq .faq-chapter {
  scroll-margin-top: 24px;
  min-width: 0;
}

.page-faq .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .chapter-no {
  font-size: clamp(20px, 2.8vw, 32px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--glow);
}

.page-faq .chapter-title {
  margin: 0;
  font-size: clamp(18px, 2.3vw, 25px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--shell);
  overflow-wrap: break-word;
}

.page-faq .chapter-aside {
  grid-column: 2;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-chapter h3 {
  margin: 24px 0 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--shell);
}

.page-faq .faq-chapter p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
  overflow-wrap: break-word;
}

.page-faq .concl {
  margin: 0 0 18px;
  padding: 12px 14px;
  border-left: 3px solid var(--mist);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(159, 191, 191, 0.12);
  color: var(--shell);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.68;
}

/* ---------- 三条路径 ---------- */
.page-faq .paths {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 760px) {
  .page-faq .paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .path-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--faq-pad);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--tide);
  min-width: 0;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .path-card:hover {
  background: var(--deep);
  border-color: var(--mist);
}

.page-faq .path-card:target {
  border-color: var(--glow);
}

.page-faq .path-tag {
  width: fit-content;
  margin: 0;
  padding: 3px 9px;
  border: 1px solid var(--deep);
  border-radius: 999px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .path-card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--shell);
}

.page-faq .path-more {
  margin-top: auto;
  padding-bottom: 2px;
  width: fit-content;
  font-size: 12.5px;
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 224, 206, 0.35);
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .path-more:hover {
  color: var(--shell);
  border-color: var(--shell);
}

/* ---------- 步骤列表 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background 0.22s var(--ease);
}

.page-faq .steps li:hover {
  background: rgba(28, 74, 99, 0.55);
}

.page-faq .steps p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-faq .steps p strong {
  color: var(--shell);
  font-weight: 700;
}

.page-faq .steps a {
  color: var(--shell);
  text-decoration: none;
  border-bottom: 1px solid var(--deep);
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .steps a:hover {
  color: var(--glow);
  border-color: var(--glow);
}

.page-faq .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 1px solid var(--deep);
  border-radius: 50%;
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0;
  color: var(--glow);
}

.page-faq .steps--flat li {
  border-left: 1px solid var(--line-soft);
  padding-left: 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- 筛选维度 ---------- */
.page-faq .filter-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0 0 20px;
}

@media (min-width: 760px) {
  .page-faq .filter-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .filter-cell {
  padding: 14px 16px;
  border-left: 2px solid var(--deep);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(28, 74, 99, 0.32);
  min-width: 0;
}

.page-faq .filter-cell dt {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--glow);
}

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

/* ---------- 问答折叠 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: 24px;
  transition: border-color 0.22s var(--ease);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px 4px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--shell);
  transition: color 0.22s var(--ease);
}

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

.page-faq .qa summary:hover,
.page-faq .qa[open] summary,
.page-faq .qa:target summary {
  color: var(--glow);
}

.page-faq .qa:target {
  border-color: var(--glow);
}

.page-faq .qa .mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-faq .qa .mark::before,
.page-faq .qa .mark::after {
  content: "";
  position: absolute;
  background: var(--glow);
  transition: transform 0.24s var(--ease);
}

.page-faq .qa .mark::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
  transform: scaleX(1);
}

.page-faq .qa .mark::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
  transform: scaleY(0);
}

.page-faq .qa[open] .mark::before {
  transform: scaleX(0);
}

.page-faq .qa[open] .mark::after {
  transform: scaleY(1);
}

.page-faq .qa-body {
  display: grid;
  gap: 12px;
  padding: 0 4px 18px;
}

.page-faq .qa-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 移动端层级 ---------- */
.page-faq .ui-level {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .ui-level li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 12px;
  border-left: 2px solid var(--deep);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(18, 48, 69, 0.6);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  transition: background 0.22s var(--ease);
}

.page-faq .ui-level li:hover {
  background: var(--deep);
}

.page-faq .ui-level .lv-2 {
  margin-left: 18px;
}

.page-faq .ui-level .lv-3 {
  margin-left: 36px;
}

.page-faq .level-no {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--glow);
}

@media (max-width: 560px) {
  .page-faq .ui-level .lv-2 {
    margin-left: 12px;
  }

  .page-faq .ui-level .lv-3 {
    margin-left: 24px;
  }
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 18px;
}

.page-faq .media-frame {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-faq .media-caption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--clay);
}

/* ---------- 访问说明 ---------- */
.page-faq .access-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 720px) {
  .page-faq .access-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .access-list li {
  padding: 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(10, 27, 41, 0.5);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .access-list li:hover {
  border-color: var(--mist);
  background: rgba(28, 74, 99, 0.45);
}

.page-faq .access-list strong {
  display: block;
  margin-bottom: 5px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--shell);
}

.page-faq .access-list span {
  display: block;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 页尾链接行 ---------- */
.page-faq .link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 18px 0 0;
  font-size: 12.5px;
}

.page-faq .link-row a {
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(69, 224, 206, 0.35);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .link-row a:hover {
  color: var(--shell);
  border-color: var(--shell);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .fi-link,
  .page-faq .fi-link::before,
  .page-faq .qa .mark::before,
  .page-faq .qa .mark::after,
  .page-faq .steps li,
  .page-faq .path-card,
  .page-faq .ui-level li,
  .page-faq .access-list li {
    transition: none;
  }
}
<<<END>>>