.page-faq {
  --faq-pad: clamp(40px, 6vw, 88px);
  --faq-line-soft: rgba(242, 231, 213, 0.14);
  --faq-line-brown: rgba(36, 27, 22, 0.18);
  --faq-dim-brown: rgba(36, 27, 22, 0.72);
  background: var(--ink);
  color: var(--text-ink);
  font-family: var(--font-body);
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-faq p {
  margin: 0;
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-mute);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 3vw, 36px) 0 var(--faq-pad);
  background:
    linear-gradient(158deg, var(--ink) 0%, var(--ink) 56%, var(--ink-2) 56%, var(--ink-2) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(46%, 480px);
  height: 140px;
  background: linear-gradient(90deg, rgba(242, 106, 46, 0) 0%, rgba(242, 106, 46, 0.18) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

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

.page-faq .faq-hero__eyebrow {
  margin-top: 18px;
  color: var(--teal-soft);
}

.page-faq .faq-hero h1 {
  margin-top: 12px;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 16em;
}

.page-faq .faq-hero__lede {
  margin-top: 18px;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 26px;
}

.page-faq .faq-hero__stamp {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--text-mute);
}

.page-faq .faq-hero__dot {
  width: 7px;
  height: 7px;
  background: var(--signal);
  flex: none;
}

.page-faq .faq-hero__figure {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--line-ink);
  padding: 8px;
  background: rgba(14, 34, 51, 0.6);
}

/* ---------- 分区骨架 ---------- */
.page-faq .faq-band {
  padding: var(--faq-pad) 0;
}

.page-faq .faq-band--ink {
  background: var(--ink);
  border-top: 1px solid var(--faq-line-soft);
  color: var(--text-ink);
}

.page-faq .faq-band--warm {
  background: var(--paper-warm);
  color: var(--brown);
}

.page-faq .faq-band--paper {
  background: var(--paper);
  color: var(--brown);
}

.page-faq .faq-head {
  max-width: 52em;
}

.page-faq .faq-head .eyebrow {
  color: var(--teal-soft);
}

.page-faq .faq-band--warm .faq-head .eyebrow,
.page-faq .faq-band--paper .faq-head .eyebrow {
  color: var(--terracotta);
}

.page-faq .faq-head h2 {
  margin-top: 10px;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.15;
}

.page-faq .faq-head__lede {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 44em;
}

.page-faq .faq-band--warm .faq-head__lede,
.page-faq .faq-band--paper .faq-head__lede {
  color: var(--faq-dim-brown);
}

/* ---------- 三类异常卡 ---------- */
.page-faq .faq-cards {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-faq .faq-card {
  background: var(--paper);
  color: var(--brown);
  border-top: 3px solid var(--teal);
  padding: clamp(18px, 2.4vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-card--l2 {
  border-top-color: var(--grey);
}

.page-faq .faq-card--l3 {
  border-top-color: var(--signal);
}

.page-faq .faq-card__code {
  font-size: clamp(24px, 2.6vw, 30px);
  line-height: 1;
  color: var(--terracotta);
  letter-spacing: 0.04em;
}

.page-faq .faq-card__title {
  font-size: 19px;
  line-height: 1.3;
}

.page-faq .faq-card__row {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--faq-dim-brown);
}

.page-faq .faq-card__label {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 3px;
}

.page-faq .faq-more {
  margin-top: clamp(20px, 2.6vw, 30px);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
  padding-left: 14px;
  border-left: 2px solid var(--signal);
}

.page-faq .faq-more a {
  color: var(--teal-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 第 2 步时间线 ---------- */
.page-faq .faq-desktop {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  margin-top: clamp(24px, 3vw, 38px);
}

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

.page-faq .faq-desktop__lead {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terracotta);
}

.page-faq .faq-desktop__leadtext {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-dim-brown);
}

.page-faq .faq-steps {
  position: relative;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: var(--faq-line-brown);
}

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

.page-faq .faq-step__box {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-step__body {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  column-gap: 10px;
  padding: 14px 8px 14px 52px;
  border-bottom: 1px solid var(--faq-line-brown);
  cursor: pointer;
}

.page-faq .faq-step__mark {
  position: absolute;
  left: 14px;
  top: 18px;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(36, 27, 22, 0.5);
  background: var(--paper-warm);
}

.page-faq .faq-step__num {
  font-size: 12px;
  color: var(--terracotta);
  padding-top: 3px;
  letter-spacing: 0.06em;
}

.page-faq .faq-step__text {
  display: block;
  min-width: 0;
}

.page-faq .faq-step__name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-step__hint {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-dim-brown);
}

.page-faq .faq-step__box:checked + .faq-step__body .faq-step__mark {
  background: var(--teal);
  border-color: var(--teal);
}

.page-faq .faq-step__box:checked + .faq-step__body .faq-step__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(40deg);
}

.page-faq .faq-step__box:checked + .faq-step__body .faq-step__name {
  color: rgba(36, 27, 22, 0.55);
}

.page-faq .faq-step__box:focus-visible + .faq-step__body {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .faq-steps__note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-dim-brown);
  border-left: 2px solid var(--teal);
  padding-left: 12px;
}

.page-faq .faq-desktop__figure {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-band--warm .media__caption {
  color: var(--faq-dim-brown);
}

/* ---------- 六项逐项对照 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

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

.page-faq .faq-checks {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-faq .faq-check {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-check:last-child {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-check__num {
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.2;
  color: var(--signal);
  letter-spacing: 0.04em;
}

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

.page-faq .faq-check h3 {
  font-size: 17px;
  line-height: 1.35;
  color: var(--paper);
  margin-bottom: 6px;
}

.page-faq .faq-check p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-check .faq-check__next {
  margin-top: 8px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--teal-soft);
}

/* ---------- 右侧索引 ---------- */
.page-faq .faq-index {
  border: 1px solid var(--line-ink);
  background: var(--ink-2);
  padding: 18px 16px;
  min-width: 0;
}

.page-faq .faq-index__title {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-faq .faq-index__title--gap {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 7px 6px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--teal-soft);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--signal);
  background: rgba(242, 231, 213, 0.05);
}

/* ---------- 常见问题手风琴 ---------- */
.page-faq .faq-qs {
  margin-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--faq-line-brown);
}

.page-faq .faq-q {
  border-bottom: 1px solid var(--faq-line-brown);
}

.page-faq .faq-q__head {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-q__no {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--terracotta);
}

.page-faq .faq-q__title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-q__icon {
  position: relative;
  width: 14px;
  height: 14px;
  justify-self: end;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background: var(--brown);
}

.page-faq .faq-q__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 180ms var(--ease);
}

.page-faq .faq-q[open] .faq-q__icon::after {
  transform: scaleY(0);
}

.page-faq .faq-q__body {
  padding: 0 4px 18px 60px;
}

.page-faq .faq-q__body p {
  max-width: 46em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-dim-brown);
}

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

/* ---------- 提交准备 ---------- */
.page-faq .faq-prepare {
  display: grid;
  gap: clamp(26px, 3.4vw, 44px);
}

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

.page-faq .faq-prepare h2 {
  margin-top: 10px;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.15;
  color: var(--paper);
}

.page-faq .faq-prepare__lede {
  margin-top: 14px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-prepare__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line-soft);
  border: 1px solid var(--faq-line-soft);
}

.page-faq .faq-prepare__item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background: var(--ink);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-prepare__n {
  font-size: 11px;
  color: var(--signal);
  padding-top: 3px;
  letter-spacing: 0.08em;
}

.page-faq .faq-prepare__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 26px;
}

.page-faq .faq-prepare__side {
  border-left: 2px solid var(--signal);
  padding: 4px 0 4px 18px;
  min-width: 0;
}

.page-faq .faq-prepare__side-title {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

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

.page-faq .faq-prepare__ways dt {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--teal-soft);
}

.page-faq .faq-prepare__ways dd {
  margin: 2px 0 12px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-prepare__note {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-prepare__link {
  display: inline-block;
  margin-top: 16px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-card--l3 {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }
  .page-faq .faq-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-card--l3 {
    grid-column: auto;
  }
  .page-faq .faq-desktop {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.7fr);
    align-items: start;
  }
  .page-faq .faq-prepare {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-q__head {
    grid-template-columns: 38px minmax(0, 1fr) 14px;
    gap: 8px;
  }
  .page-faq .faq-q__body {
    padding: 0 0 16px;
  }
  .page-faq .faq-check {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 2px 10px;
  }
  .page-faq .faq-step__body {
    padding-left: 46px;
  }
  .page-faq .faq-step__mark {
    left: 8px;
  }
  .page-faq .faq-steps::before {
    left: 17px;
  }
  .page-faq .faq-prepare__side {
    padding-left: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__icon::after {
    transition: none;
  }
}