.page-faq {
  --faq-panel: rgba(16, 35, 58, .62);
  --faq-panel-strong: rgba(16, 35, 58, .94);
  --faq-edge: rgba(42, 69, 96, .75);
  --faq-text: #B9C9DA;
  padding-bottom: 84px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--text-muted);
}
.page-faq .breadcrumbs a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 42px;
  border-bottom: 1px solid var(--haze-border);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -34%;
  width: min(82%, 660px);
  height: 160%;
  background: linear-gradient(142deg, rgba(255, 162, 58, .17) 0%, rgba(47, 208, 175, .10) 46%, rgba(8, 18, 31, 0) 74%);
  clip-path: polygon(40% 0%, 100% 0%, 100% 60%, 0% 100%);
  pointer-events: none;
  z-index: 0;
}
.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}
.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--celadon);
}
.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: #C6D4E4;
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--faq-edge);
  border-top: 2px solid var(--amber);
  background: var(--faq-panel);
  padding: 20px 18px 22px;
}
.page-faq .faq-hero__panel-title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-edge);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--paper);
}
.page-faq .faq-hero__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 15px;
}
.page-faq .faq-hero__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
}
.page-faq .faq-hero__num {
  display: block;
  font-size: 11px;
  line-height: 19px;
  text-align: center;
  color: var(--amber);
  border: 1px solid rgba(255, 162, 58, .45);
  border-radius: 2px;
}
.page-faq .faq-hero__text strong {
  display: block;
  margin-bottom: 3px;
  font-size: 14px;
  font-weight: 600;
  color: var(--paper);
}
.page-faq .faq-hero__text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--text-muted);
}

/* ---------- 版本号标记 ---------- */
.page-faq .vnum {
  display: inline-block;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: .9em;
  letter-spacing: .03em;
  white-space: nowrap;
  color: #CFC7FF;
  background: rgba(142, 123, 255, .16);
  border: 1px solid rgba(142, 123, 255, .32);
  border-radius: 3px;
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding-top: 34px;
}
.page-faq .faq-body {
  min-width: 0;
}

/* ---------- 左侧分类目录 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--faq-edge);
  background: rgba(8, 18, 31, .55);
  padding: 18px 16px 20px;
}
.page-faq .faq-index__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-edge);
  font-family: var(--font-display);
  font-size: 12.5px;
  letter-spacing: .2em;
  color: var(--text-muted);
}
.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqidx;
}
.page-faq .faq-index__list li {
  counter-increment: faqidx;
}
.page-faq .faq-index__list a {
  position: relative;
  display: block;
  padding: 9px 10px 9px 32px;
  font-size: 14px;
  line-height: 1.5;
  color: #C6D4E4;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-faq .faq-index__list a::before {
  content: counter(faqidx, decimal-leading-zero);
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--haze-border);
  transition: color var(--t-fast) var(--ease);
}
.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--amber);
  background: rgba(255, 162, 58, .08);
}
.page-faq .faq-index__list a:hover::before,
.page-faq .faq-index__list a:focus-visible::before {
  color: var(--amber);
}
.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-edge);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--text-muted);
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: calc(var(--status-h) + 30px);
}
.page-faq .faq-section + .faq-section {
  margin-top: 50px;
  padding-top: 38px;
  border-top: 1px solid var(--haze-border);
}
.page-faq .faq-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.page-faq .faq-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -.005em;
  color: var(--paper);
}
.page-faq .faq-section h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 2px;
  margin-top: 11px;
  background: var(--haze-border);
  transition: width var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}
.page-faq .faq-section:target h2::after {
  width: 96px;
  background: var(--amber);
}
.page-faq .faq-section__idx {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--text-muted);
}
.page-faq .faq-section__intro {
  margin: 16px 0 20px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-text);
}

/* ---------- 图片 ---------- */
.page-faq .figure {
  margin: 0 0 22px;
}
.page-faq .figure__caption {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa {
  border: 1px solid var(--faq-edge);
  border-left: 3px solid var(--haze-border);
  background: var(--faq-panel);
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}
.page-faq .qa + .qa {
  margin-top: 10px;
}
.page-faq .qa[open] {
  border-left-color: var(--celadon);
  background: var(--faq-panel-strong);
}
.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--paper);
  transition: color var(--t-fast) var(--ease);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin: 7px 0 0 auto;
  border-right: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
  transform: rotate(45deg);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}
.page-faq .qa[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--celadon);
}
.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--amber);
}
.page-faq .qa__body {
  padding: 15px 16px 20px;
  border-top: 1px dashed var(--faq-edge);
}
.page-faq .qa__body p {
  margin: 0 0 12px;
  max-width: 42em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-text);
}
.page-faq .qa__body p:last-child {
  margin-bottom: 0;
}
.page-faq .qa__body a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 208, 175, .45);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 步骤路径 ---------- */
.page-faq .steps {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 12px;
}
.page-faq .steps li {
  position: relative;
  counter-increment: step;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-text);
}
.page-faq .steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 162, 58, .5);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--amber);
}
.page-faq .steps li::after {
  content: "";
  position: absolute;
  left: 10px;
  top: 27px;
  bottom: -13px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(255, 162, 58, .38), rgba(255, 162, 58, 0));
}
.page-faq .steps li:last-child::after {
  display: none;
}

/* ---------- 判断分支 ---------- */
.page-faq .branch {
  position: relative;
  margin: 16px 0 0;
  padding: 14px 14px 14px 18px;
  border: 1px solid var(--faq-edge);
  background: rgba(8, 18, 31, .55);
}
.page-faq .branch::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--amber), var(--celadon));
}
.page-faq .branch__q {
  margin: 0 0 12px;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
}
.page-faq .branch__q a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 208, 175, .45);
}
.page-faq .branch__q a:hover,
.page-faq .branch__q a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}
.page-faq .branch__legs {
  display: grid;
  gap: 10px;
}
.page-faq .branch__leg {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--text-muted);
}
.page-faq .branch__leg p {
  margin: 0;
}
.page-faq .branch__tag {
  display: block;
  padding: 2px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  border-radius: 2px;
}
.page-faq .branch__leg--yes .branch__tag {
  color: var(--celadon);
  border: 1px solid rgba(47, 208, 175, .45);
}
.page-faq .branch__leg--no .branch__tag {
  color: var(--amber);
  border: 1px solid rgba(255, 162, 58, .45);
}

/* ---------- 记录同步的分栏 ---------- */
.page-faq .split {
  display: grid;
  gap: 24px;
}
.page-faq .split__col {
  min-width: 0;
}
.page-faq .split__aside {
  margin: 0;
}

/* ---------- 自查清单 ---------- */
.page-faq .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-faq .checklist__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 15px;
  border: 1px solid var(--faq-edge);
  background: rgba(16, 35, 58, .5);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-faq .checklist__item:hover {
  border-color: rgba(255, 162, 58, .45);
}
.page-faq .checklist__item:has(input:checked) {
  border-color: rgba(47, 208, 175, .5);
  background: rgba(47, 208, 175, .06);
}
.page-faq .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1px solid var(--haze-border);
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-faq .checklist__box:hover {
  border-color: var(--amber);
}
.page-faq .checklist__box:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}
.page-faq .checklist__box:checked {
  border-color: var(--celadon);
  background: rgba(47, 208, 175, .18);
}
.page-faq .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--celadon);
  border-bottom: 2px solid var(--celadon);
  transform: rotate(40deg);
}
.page-faq .checklist__label {
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D4E4;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease);
}
.page-faq .checklist__box:checked + .checklist__label {
  color: rgba(147, 166, 186, .32);
  -webkit-text-stroke: .6px var(--text-muted);
}
.page-faq .checklist__hint {
  margin: 20px 0 0;
  max-width: 44em;
  padding-left: 16px;
  border-left: 2px solid var(--celadon);
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-text);
}
.page-faq .checklist__hint a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 208, 175, .45);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-faq .checklist__hint a:hover,
.page-faq .checklist__hint a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-hero {
    padding: 26px 0 34px;
  }
  .page-faq .qa summary {
    padding: 14px 14px;
    font-size: 14.5px;
  }
  .page-faq .qa__body {
    padding: 14px 14px 18px;
  }
  .page-faq .checklist__item {
    padding: 12px 13px;
  }
  .page-faq .branch {
    padding: 12px 12px 12px 16px;
  }
  .page-faq .branch__leg {
    grid-template-columns: 34px minmax(0, 1fr);
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 52px 0 58px;
  }
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .8fr);
    gap: 52px;
    align-items: end;
  }
  .page-faq .faq-layout {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: 52px;
    padding-top: 40px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--status-h) + 22px);
  }
  .page-faq .faq-section + .faq-section {
    margin-top: 62px;
    padding-top: 46px;
  }
  .page-faq .split {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .82fr);
    gap: 34px;
    align-items: start;
  }
  .page-faq .split__aside {
    position: sticky;
    top: calc(var(--status-h) + 26px);
  }
  .page-faq .qa summary {
    padding: 17px 20px;
  }
  .page-faq .qa__body {
    padding: 18px 20px 24px;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 64px;
  }
  .page-faq .split {
    gap: 44px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa summary,
  .page-faq .qa summary::after,
  .page-faq .faq-index__list a,
  .page-faq .faq-index__list a::before,
  .page-faq .checklist__item,
  .page-faq .checklist__box,
  .page-faq .checklist__label,
  .page-faq .faq-section h2::after {
    transition: none;
  }
}