.page-faq {
  --faq-hair: rgba(151, 162, 171, .26);
  --faq-hair-strong: rgba(151, 162, 171, .46);
  --faq-text-1: rgba(246, 240, 227, .86);
  --faq-text-2: rgba(246, 240, 227, .68);
  --faq-dark-1: rgba(7, 18, 27, .84);
  --faq-dark-2: rgba(7, 18, 27, .62);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: 22px;
  padding-bottom: 40px;
  background-image:
    linear-gradient(180deg, rgba(192, 90, 43, .10), rgba(15, 34, 51, 0) 62%),
    linear-gradient(90deg, var(--faq-hair) 1px, transparent 1px),
    linear-gradient(180deg, var(--faq-hair) 1px, transparent 1px);
  background-size: 100% 100%, 72px 72px, 72px 72px;
  background-position: 0 0, -1px -1px, -1px -1px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 20px;
}

.page-faq .faq-hero__lead h1 {
  margin: 14px 0 16px;
  font-family: var(--f-head);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-hero__text {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-16);
  line-height: 1.95;
  color: var(--faq-text-1);
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-facts__cell {
  padding: 15px 14px 17px;
  background: var(--ink);
}

.page-faq .faq-facts__cell dt {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--stone);
}

.page-faq .faq-facts__cell dd {
  margin: 8px 0 0;
  font-size: var(--fs-20);
  color: var(--clay-soft);
}

/* ---------- 通用章节间距 ---------- */
.page-faq .faq-section {
  padding-top: 48px;
  padding-bottom: 48px;
}

.page-faq .faq-section--last {
  padding-bottom: 64px;
}

.page-faq .faq-section .block-head {
  max-width: 62ch;
}

/* ---------- 三步卡 ---------- */
.page-faq .faq-step-figure {
  margin: 24px 0 0;
  max-width: 420px;
}

.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-step {
  border: 1px solid var(--faq-hair-strong);
  background: rgba(27, 51, 72, .42);
  transition: border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-faq .faq-step[open] {
  border-color: rgba(192, 90, 43, .72);
  background: rgba(27, 51, 72, .62);
}

.page-faq .faq-step__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 17px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-step__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--clay-soft);
}

.page-faq .faq-step[open] .faq-step__sum::after {
  content: "\2013";
}

.page-faq .faq-step__no {
  flex: 0 0 auto;
  padding: 4px 9px;
  border: 1px solid rgba(192, 90, 43, .55);
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--clay);
}

.page-faq .faq-step__title {
  flex: 1 1 auto;
  font-family: var(--f-head);
  font-size: var(--fs-20);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-step__time {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--stone);
}

.page-faq .faq-step__body {
  padding: 0 16px 20px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-step__rows {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 18px 0 0;
}

.page-faq .faq-step__row {
  display: grid;
  gap: 5px;
}

.page-faq .faq-step__row dt {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--mist);
}

.page-faq .faq-step__row dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--faq-text-1);
}

.page-faq .faq-step__tip {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--clay);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--faq-text-2);
}

/* ---------- 分类跳转 ---------- */
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--faq-hair-strong);
  font-size: var(--fs-14);
  color: var(--cream);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-jump__item .mono {
  font-size: var(--fs-12);
  color: var(--clay);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--clay);
  color: var(--clay-soft);
}

/* ---------- 四类索引 ---------- */
.page-faq .faq-index {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-faq .faq-cat {
  padding-top: 15px;
  border-top: 2px solid var(--clay);
}

.page-faq .faq-cat--device {
  border-top-color: var(--mist);
}

.page-faq .faq-cat--rights {
  border-top-color: var(--moss);
}

.page-faq .faq-cat--proof {
  border-top-color: var(--clay-soft);
}

.page-faq .faq-cat__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.page-faq .faq-cat__name {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--fs-20);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-cat__count {
  flex: 0 0 auto;
  font-size: var(--fs-12);
  color: var(--clay-soft);
}

.page-faq .faq-cat__desc {
  margin: 0 0 12px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--faq-text-2);
}

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

.page-faq .faq-cat__list li {
  position: relative;
  padding: 9px 0 9px 16px;
  border-bottom: 1px solid var(--faq-hair);
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--faq-text-1);
}

.page-faq .faq-cat__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15em;
  width: 7px;
  height: 1px;
  background: var(--stone);
}

.page-faq .faq-cat__freq {
  margin: 12px 0 0;
}

.page-faq .faq-index-figure {
  margin: 34px 0 0;
}

/* ---------- 三种找法 ---------- */
.page-faq .faq-search {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-search__path {
  display: grid;
  gap: 7px;
  padding: 20px 18px 22px;
  background: var(--ink);
}

.page-faq .faq-search__no {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--clay);
}

.page-faq .faq-search__path h3 {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--fs-20);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-search__path p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.88;
  color: var(--faq-text-2);
}

.page-faq .faq-alias {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-alias__title {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--cream);
}

.page-faq .faq-alias__list {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-alias__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-14);
  color: var(--faq-text-2);
}

.page-faq .faq-alias__word {
  padding: 5px 10px;
  border: 1px solid rgba(192, 90, 43, .48);
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--clay-soft);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-alias__list li:hover .faq-alias__word {
  border-color: var(--clay);
  background: rgba(192, 90, 43, .12);
}

.page-faq .faq-alias__arrow {
  color: var(--stone);
}

/* ---------- 检查清单 ---------- */
.page-faq .faq-checklist {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-checklist__item {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 13px;
  align-items: start;
  padding: 14px 16px;
  background: var(--ink);
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--faq-text-1);
}

.page-faq .faq-checklist__mark {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  border: 1px solid var(--moss);
  background: rgba(85, 102, 63, .18);
}

.page-faq .faq-checklist__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--moss);
  border-bottom: 2px solid var(--moss);
  transform: rotate(42deg);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-qa-list {
  margin-top: 24px;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-qa {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-qa__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--f-head);
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.6;
  color: var(--cream);
  transition: color .2s var(--ease);
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--clay);
}

.page-faq .faq-qa[open] .faq-qa__q {
  color: var(--clay-soft);
}

.page-faq .faq-qa[open] .faq-qa__q::after {
  content: "\2013";
}

.page-faq .faq-qa__a {
  padding: 0 0 20px;
  max-width: 62ch;
  font-size: var(--fs-14);
  line-height: 1.92;
  color: var(--faq-text-2);
}

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

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

.page-faq .faq-qa__more a {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--clay-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 161, 119, .42);
  padding-bottom: 2px;
}

.page-faq .faq-qa__more a:hover,
.page-faq .faq-qa__more a:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--cream);
}

/* ---------- 反馈路径 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-flow__item {
  display: grid;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--ink);
}

.page-faq .faq-flow__no {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--clay);
}

.page-faq .faq-flow__item h3 {
  margin: 0;
  font-family: var(--f-head);
  font-size: var(--fs-16);
  font-weight: 800;
  color: var(--cream);
}

.page-faq .faq-flow__item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.82;
  color: var(--faq-text-2);
}

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

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--f-head);
  font-size: var(--fs-20);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink-deep);
}

.page-faq .faq-cta__list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--faq-dark-1);
}

.page-faq .faq-cta__list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-cta__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .95em;
  width: 9px;
  height: 1px;
  background: var(--clay);
}

.page-faq .faq-cta__text {
  margin: 0 0 12px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--faq-dark-1);
}

.page-faq .faq-cta__text:last-of-type {
  margin-bottom: 18px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__lead h1 {
    font-size: 40px;
  }

  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .faq-alias__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
  }

  .page-faq .faq-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 宽屏网格错位 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding-top: 34px;
    padding-bottom: 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-hero__lead h1 {
    font-size: 46px;
    line-height: 1.22;
  }

  .page-faq .faq-section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .page-faq .faq-section--last {
    padding-bottom: 88px;
  }

  .page-faq .faq-step-figure {
    max-width: 380px;
    margin-left: auto;
    margin-top: 30px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin-top: 32px;
    background: var(--faq-hair-strong);
    border: 1px solid var(--faq-hair-strong);
  }

  .page-faq .faq-step {
    border: 0;
    background: rgba(27, 51, 72, .42);
  }

  .page-faq .faq-step[open] {
    background: rgba(27, 51, 72, .7);
  }

  .page-faq .faq-step__sum {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .page-faq .faq-step__sum::after {
    position: absolute;
    margin: 0;
  }

  .page-faq .faq-step {
    position: relative;
  }

  .page-faq .faq-step__sum::after {
    top: 18px;
    right: 18px;
  }

  .page-faq .faq-step__title {
    font-size: var(--fs-28);
  }

  .page-faq .faq-index {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 34px 24px;
    margin-top: 34px;
  }

  .page-faq .faq-cat--account {
    grid-column: 1 / span 5;
  }

  .page-faq .faq-cat--device {
    grid-column: 7 / span 6;
  }

  .page-faq .faq-cat--rights {
    grid-column: 2 / span 6;
  }

  .page-faq .faq-cat--proof {
    grid-column: 8 / span 5;
  }

  .page-faq .faq-index-figure {
    margin-top: 44px;
    max-width: 900px;
  }

  .page-faq .faq-alias {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 24px 34px;
    align-items: start;
  }

  .page-faq .faq-alias__list {
    margin-top: 0;
  }

  .page-faq .faq-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 30px;
  }

  .page-faq .faq-qa-list {
    margin-top: 30px;
  }

  .page-faq .faq-flow {
    margin-top: 30px;
  }

  .page-faq .faq-cta {
    margin-top: 34px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-jump__item,
  .page-faq .faq-alias__word,
  .page-faq .faq-qa__q {
    transition: none;
  }
}