.page-faq {
  --faq-narrow: 940px;
  --faq-rule: 1px solid var(--c-line);
  background: var(--c-night);
  color: var(--c-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 42px;
  background:
    radial-gradient(88% 70% at 88% -14%, rgba(63, 178, 127, .20), transparent 62%),
    radial-gradient(72% 62% at 2% 112%, rgba(46, 155, 181, .18), transparent 62%),
    linear-gradient(168deg, #0A1A2F 0%, #12253D 70%, #0A1A2F 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -16%;
  bottom: -48%;
  width: 76%;
  height: 82%;
  border-radius: 40px;
  background: linear-gradient(140deg, rgba(63, 178, 127, .17), rgba(46, 155, 181, .05));
  transform: skewY(-7deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(155, 176, 196, .18) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(118deg, transparent 30%, #000 86%);
  mask-image: linear-gradient(118deg, transparent 30%, #000 86%);
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__body {
  max-width: 720px;
  margin-top: 22px;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(26px, 5.4vw, 44px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--c-text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 关键词输入 ---------- */
.page-faq .faq-search {
  margin-top: 32px;
  max-width: 600px;
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-green);
}

.page-faq .faq-search__input {
  display: block;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-s);
  background: rgba(18, 37, 61, .86);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.4;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .faq-search__input::placeholder {
  color: rgba(155, 176, 196, .7);
}

.page-faq .faq-search__input:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 2px;
  background: var(--c-panel);
}

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 分组索引条 ---------- */
.page-faq .faq-map {
  position: relative;
  border-top: var(--faq-rule);
  border-bottom: var(--faq-rule);
  background: var(--c-panel);
}

.page-faq .faq-map__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line) transparent;
}

.page-faq .faq-map__list::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-map__list::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: 2px;
}

.page-faq .faq-map__item {
  flex: 0 0 auto;
}

.page-faq .faq-map__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 14px 18px;
  border-right: var(--faq-rule);
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .faq-map__link:hover,
.page-faq .faq-map__link:focus-visible {
  color: var(--c-green-soft);
  background: var(--c-raise);
}

.page-faq .faq-map__link:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: -2px;
}

.page-faq .faq-map__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-green);
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  padding: 52px 0;
  scroll-margin-top: 84px;
}

.page-faq .faq-block--end {
  padding-bottom: 72px;
}

.page-faq .faq-head {
  max-width: 700px;
}

.page-faq .faq-head__title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 28px);
  line-height: 1.32;
  color: var(--c-text);
}

.page-faq .faq-head__desc {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 折叠通用标记 ---------- */
.page-faq summary {
  list-style: none;
}

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

.page-faq .faq-plus {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-left: auto;
  margin-top: 3px;
}

.page-faq .faq-plus::before,
.page-faq .faq-plus::after {
  content: "";
  position: absolute;
  background: var(--c-green);
  border-radius: 2px;
  transition: transform .2s var(--ease), opacity .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-plus::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .faq-plus::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-faq details[open] > summary .faq-plus::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__q:hover .faq-plus::before,
.page-faq .qa__q:hover .faq-plus::after,
.page-faq .faq-step__head:hover .faq-plus::before,
.page-faq .faq-step__head:hover .faq-plus::after {
  background: var(--c-green-soft);
}

@keyframes faqBodyIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq details[open] .qa__body,
.page-faq details[open] .faq-step__body {
  animation: faqBodyIn .22s var(--ease) both;
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-stepstack {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-step {
  border: var(--faq-rule);
  border-radius: var(--radius-m);
  background: var(--c-panel);
  overflow: hidden;
  transition: border-color .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
}

.page-faq .faq-step[open] {
  border-color: rgba(63, 178, 127, .55);
  background: var(--c-raise);
  transform: none;
}

.page-faq .faq-step__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  cursor: pointer;
}

.page-faq .faq-step__head:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: -2px;
  border-radius: var(--radius-m);
}

.page-faq .faq-step__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--c-green);
}

.page-faq .faq-step__title {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

.page-faq .faq-step__body {
  padding: 0 18px 20px;
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .faq-step__check {
  margin-top: 14px;
  padding: 10px 12px;
  border-left: 3px solid var(--c-cyan);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(46, 155, 181, .12);
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .qa {
  border: var(--faq-rule);
  border-radius: var(--radius-s);
  background: rgba(18, 37, 61, .6);
  scroll-margin-top: 92px;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(46, 155, 181, .5);
}

.page-faq .qa[open] {
  border-color: rgba(63, 178, 127, .55);
  background: var(--c-panel);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: -2px;
  border-radius: var(--radius-s);
}

.page-faq .qa__num {
  flex: 0 0 auto;
  min-width: 40px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
}

.page-faq .qa[open] .qa__num {
  color: var(--c-green);
}

.page-faq .qa__title {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
}

.page-faq .qa__body {
  padding: 0 16px 18px 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .qa__body p {
  margin: 0;
}

.page-faq .qa__body p + p {
  margin-top: 10px;
}

/* ---------- 时间轴 ---------- */
.page-faq .faq-timeline {
  display: flex;
  gap: 0;
  margin: 30px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line) transparent;
}

.page-faq .faq-timeline::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-timeline::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: 2px;
}

.page-faq .faq-timeline__node {
  position: relative;
  flex: 0 0 auto;
  width: 158px;
  padding: 32px 18px 0 0;
}

.page-faq .faq-timeline__node::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 16px;
  right: 0;
  height: 2px;
  background: var(--c-line);
  border-radius: 1px;
}

.page-faq .faq-timeline__node:last-child::before {
  display: none;
}

.page-faq .faq-timeline__dot {
  position: absolute;
  top: 2px;
  left: 0;
  width: 14px;
  height: 14px;
  border: 3px solid var(--c-cyan);
  border-radius: 50%;
  background: var(--c-night);
}

.page-faq .faq-timeline__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-cyan-soft);
}

.page-faq .faq-timeline__label {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-faq .faq-timeline__node--roster .faq-timeline__dot {
  border-color: var(--c-green);
  background: rgba(63, 178, 127, .28);
}

.page-faq .faq-timeline__node--roster .faq-timeline__time {
  color: var(--c-green-soft);
  font-weight: 600;
}

.page-faq .faq-timeline__node--roster .faq-timeline__label {
  color: var(--c-text);
}

/* ---------- 四步核对 ---------- */
.page-faq .faq-flow-layout {
  display: grid;
  gap: 32px;
  margin-top: 28px;
}

.page-faq .faq-flow {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-flow__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: var(--faq-rule);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--radius-s);
  background: rgba(18, 37, 61, .66);
  text-decoration: none;
  transition: border-color .16s var(--ease), background-color .16s var(--ease), transform .16s var(--ease);
}

.page-faq .faq-flow__link:hover,
.page-faq .faq-flow__link:focus-visible {
  border-left-color: var(--c-green);
  background: var(--c-raise);
  transform: translateX(3px);
}

.page-faq .faq-flow__link:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 2px;
}

.page-faq .faq-flow__step--active .faq-flow__link {
  border-left-color: var(--c-orange);
  background: var(--c-raise);
}

.page-faq .faq-flow__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  color: var(--c-green);
}

.page-faq .faq-flow__step--active .faq-flow__num {
  color: var(--c-orange);
}

.page-faq .faq-flow__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-flow__time {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--c-cyan-soft);
}

.page-faq .faq-flow__name {
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure .frame {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: var(--faq-rule);
}

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

.page-faq .faq-figure .frame__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 卡点清单 ---------- */
.page-faq .faq-subhead {
  margin: 44px 0 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

.page-faq .faq-pitfalls {
  display: grid;
  gap: 1px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border: var(--faq-rule);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--c-line);
}

.page-faq .faq-pitfalls__item {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--c-panel);
}

.page-faq .faq-pitfalls__key {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-orange);
}

.page-faq .faq-pitfalls__val {
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--c-muted);
}

/* ---------- 稳定版卡片 ---------- */
.page-faq .faq-cards {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-faq .faq-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}

.page-faq .faq-card__text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--c-muted);
}

/* ---------- 设置清单 ---------- */
.page-faq .faq-checklist {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-faq .faq-checklist__mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid rgba(63, 178, 127, .6);
  border-radius: 4px;
  background: rgba(63, 178, 127, .12);
}

.page-faq .faq-checklist__mark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--c-green);
  border-bottom: 2px solid var(--c-green);
  transform: rotate(42deg);
}

.page-faq .faq-checklist__body {
  min-width: 0;
}

.page-faq .faq-checklist__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--c-text);
}

.page-faq .faq-checklist__text {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--c-muted);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-consult {
  display: grid;
  gap: 32px;
  padding: 32px 22px;
  border: var(--faq-rule);
  border-radius: var(--radius-l);
  background:
    radial-gradient(100% 120% at 92% -20%, rgba(255, 138, 61, .16), transparent 62%),
    linear-gradient(160deg, var(--c-panel) 0%, var(--c-raise) 100%);
}

.page-faq .faq-consult__lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-faq .faq-consult__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-consult .faq-figure .frame {
  border-color: rgba(36, 64, 92, .8);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 112px 0 54px;
  }

  .page-faq .qa__body {
    padding: 0 18px 18px 68px;
  }

  .page-faq .faq-pitfalls__item {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 24px;
    padding: 18px 22px;
  }

  .page-faq .faq-consult {
    padding: 42px 36px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-block {
    padding: 64px 0;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-flow-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-consult {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: center;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-block > .wrap,
  .page-faq .faq-map > .wrap {
    max-width: var(--faq-narrow);
  }

  .page-faq .faq-hero > .wrap {
    max-width: var(--wrap-max);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .page-faq .faq-step:hover,
  .page-faq .faq-flow__link:hover,
  .page-faq .faq-flow__link:focus-visible {
    transform: none;
  }
}