.page-faq {
  --faq-rail: 22px;
  --faq-node: 18px;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

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

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 46px) 0 clamp(30px, 5vw, 58px);
  background-color: var(--c-paper);
  background-image:
    repeating-linear-gradient(90deg, rgba(27, 36, 48, .04) 0 1px, transparent 1px 68px),
    repeating-linear-gradient(0deg, rgba(27, 36, 48, .04) 0 1px, transparent 1px 68px);
  box-shadow: inset 0 -1px 0 var(--c-line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-red) 26%, var(--c-gold) 52%, var(--c-teal) 76%, transparent 100%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-hero__grid {
  align-items: start;
}

.page-faq .faq-hero__lead .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(31px, 7vw, 62px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--c-ink);
}

.page-faq .faq-hero h1 em {
  display: block;
  font-style: normal;
  color: var(--c-red);
}

.page-faq .faq-hero .lede {
  max-width: 34em;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__panel {
  margin-top: 30px;
  padding: 22px 22px 20px;
  color: var(--c-paper);
  background: linear-gradient(158deg, var(--c-red) 0%, var(--c-red-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut-lg)), calc(100% - var(--cut-lg)) 100%, 0 100%);
}

.page-faq .faq-hero__panel-kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-gold);
}

.page-faq .faq-hero__steps {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__steps li + li {
  border-top: 1px solid rgba(251, 249, 246, .16);
}

.page-faq .faq-hero__steps a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  font-size: 15px;
  line-height: 1.45;
  color: var(--c-paper);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-hero__steps a:hover {
  color: var(--c-gold);
}

.page-faq .faq-hero__steps .mono {
  flex: none;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-faq .faq-hero__panel-note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(251, 249, 246, .22);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(251, 249, 246, .72);
}

/* ---------- 准备清单 ---------- */

.page-faq .faq-prep .section-title {
  margin-bottom: 14px;
}

.page-faq .faq-prep .note {
  margin: 0;
}

.page-faq .faq-prep__list {
  margin: 26px 0 0;
}

.page-faq .faq-prep__row {
  display: grid;
  gap: 6px 22px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

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

.page-faq .faq-prep__row dt {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-prep__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--c-ink);
}

.page-faq .faq-prep__row dd a {
  color: var(--c-red);
  text-underline-offset: 3px;
}

.page-faq .faq-prep__idx {
  display: inline-block;
  margin-right: 9px;
  font-size: 12px;
  color: var(--c-gold);
}

/* ---------- 时间轴 ---------- */

.page-faq .faq-overview {
  margin: 0 0 32px;
}

.page-faq .faq-overview .figure-frame__media img {
  width: 100%;
  aspect-ratio: 10 / 9;
  object-fit: cover;
}

.page-faq .faq-timeline__wrap {
  display: grid;
  gap: 26px;
}

.page-faq .faq-timeline__aside-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-mid);
}

.page-faq .faq-timeline__aside .index-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .index-rail__link {
  display: block;
  padding: 7px 10px;
  font-size: 13px;
  line-height: 1.3;
  text-decoration: none;
  color: var(--c-ink);
  background: var(--c-paper);
  border-left: 3px solid var(--c-line);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .index-rail__link .mono {
  margin-right: 6px;
  font-size: 11px;
  color: var(--c-mid);
}

.page-faq .index-rail__link:hover {
  border-left-color: var(--c-gold);
}

.page-faq .index-rail__link.is-active {
  border-left-color: var(--c-red);
  color: var(--c-red);
}

.page-faq .index-rail__link.is-active .mono {
  color: var(--c-red);
}

.page-faq .faq-timeline {
  position: relative;
  margin: 0;
  padding: 4px 0;
  list-style: none;
}

.page-faq .faq-timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: var(--faq-rail);
  width: 2px;
  background: linear-gradient(180deg, var(--c-gold) 0%, var(--c-red) 55%, var(--c-teal) 100%);
  opacity: .55;
  transform-origin: top center;
}

@media (prefers-reduced-motion: no-preference) {
  .page-faq .faq-timeline::before {
    animation: faq-line-grow 1.5s var(--ease) both;
  }
}

@keyframes faq-line-grow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 26px calc(var(--faq-rail) + 34px);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step__node {
  position: absolute;
  left: calc(var(--faq-rail) - 9px);
  top: 22px;
  width: var(--faq-node);
  height: var(--faq-node);
  background: var(--c-paper);
  border: 2px solid var(--c-gold);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-step.is-visible .faq-step__node {
  background: var(--c-gold);
  transform: rotate(45deg) scale(1.16);
  box-shadow: 0 0 0 6px rgba(192, 138, 46, .16);
}

.page-faq .faq-step__card {
  position: relative;
  overflow: hidden;
  padding: 20px 22px 22px;
  background: var(--c-paper);
  box-shadow: inset 0 0 0 1px var(--c-line);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, 0 100%);
}

.page-faq .faq-step:nth-child(even) .faq-step__card {
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% 100%, 0 100%, 0 var(--cut-sm));
}

.page-faq .faq-step__num {
  position: absolute;
  right: 14px;
  top: -8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 74px;
  line-height: 1;
  color: rgba(122, 18, 32, .07);
  pointer-events: none;
  user-select: none;
}

.page-faq .faq-step__meta {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-gold);
}

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.36;
  color: var(--c-ink);
}

.page-faq .faq-step__text {
  margin: 0 0 12px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.74;
  color: var(--c-ink);
}

.page-faq .faq-step__warn {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--c-mid);
}

.page-faq .faq-step__warn-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-orange);
  border: 1px solid rgba(226, 112, 58, .45);
}

.page-faq .faq-step__more {
  margin: 12px 0 0;
  font-size: 13.5px;
}

.page-faq .faq-step__more a {
  color: var(--c-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 191, 168, .5);
}

.page-faq .faq-step__more a:hover {
  color: var(--c-red);
  border-bottom-color: rgba(122, 18, 32, .5);
}

/* ---------- 资料下载 ---------- */

.page-faq .faq-dl {
  margin-top: 4px;
}

.page-faq .faq-dl__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-dl__list li {
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-dl__list li:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-dl__idx {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-red);
}

.page-faq .faq-dl__list h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.4;
}

.page-faq .faq-dl__list p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.74;
  color: var(--c-ink);
}

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

.page-faq .faq-dl__figure {
  margin: 30px 0 0;
}

.page-faq .faq-dl__figure .figure-frame__media img {
  width: 100%;
  aspect-ratio: 25 / 12;
  object-fit: cover;
}

.page-faq .faq-dl__table {
  margin-top: 40px;
}

.page-faq .faq-dl__table caption {
  margin-bottom: 10px;
  font-size: 13px;
  text-align: left;
  color: var(--c-mid);
}

/* ---------- 导出清单 ---------- */

.page-faq .faq-export__text {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-faq .faq-export__notes {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-export__notes li {
  padding: 12px 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--c-ink);
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-export__notes li:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .faq-export__notes .mono {
  display: inline-block;
  min-width: 46px;
  margin-right: 8px;
  font-size: 12px;
  color: var(--c-gold);
}

.page-faq .faq-export table {
  width: 100%;
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-qa {
  margin-top: 30px;
  border-top: 1px solid var(--c-line);
}

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

.page-faq .faq-qa__q {
  position: relative;
  display: block;
  padding: 18px 44px 18px 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-qa__q::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 26px;
  width: 8px;
  height: 8px;
  background: var(--c-gold);
  transform: rotate(45deg);
}

.page-faq .faq-qa__q::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-gold);
  border-bottom: 2px solid var(--c-gold);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
}

.page-faq .faq-qa__item[open] .faq-qa__q::after {
  top: 28px;
  transform: rotate(-135deg);
}

.page-faq .faq-qa__item[open] .faq-qa__q {
  color: var(--c-red);
}

.page-faq .faq-qa__a {
  padding: 0 44px 22px 0;
  animation: faq-qa-in var(--dur) var(--ease) both;
}

.page-faq .faq-qa__a p {
  margin: 0;
  max-width: var(--measure);
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-faq .faq-qa__a a {
  color: var(--c-red);
  text-underline-offset: 3px;
}

@keyframes faq-qa-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 收尾通道 ---------- */

.page-faq .faq-cta {
  padding: 8px 0 20px;
}

.page-faq .faq-cta__panel {
  padding: 32px clamp(20px, 3vw, 40px) 34px;
  color: var(--c-paper);
  background: linear-gradient(142deg, var(--c-ink) 0%, var(--c-red-deep) 100%);
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
}

.page-faq .faq-cta__panel .eyebrow {
  color: var(--c-gold);
}

.page-faq .faq-cta__panel h2 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.24;
  color: var(--c-paper);
}

.page-faq .faq-cta__text {
  margin: 0 0 24px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(251, 249, 246, .84);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */

@media (min-width: 768px) {
  .page-faq .faq-prep__row {
    grid-template-columns: minmax(0, 216px) minmax(0, 1fr);
    align-items: baseline;
  }

  .page-faq .faq-step__card {
    padding: 24px 26px 26px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-timeline__wrap {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-timeline__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-timeline__aside .index-rail__list {
    display: block;
  }

  .page-faq .faq-timeline__aside .index-rail__list li + li {
    margin-top: 8px;
  }

  .page-faq .faq-timeline::before {
    left: calc(50% - 1px);
    width: 2px;
  }

  .page-faq .faq-step {
    width: calc(50% - 40px);
    padding: 0 0 38px 0;
  }

  .page-faq .faq-step:nth-child(odd) {
    margin-left: 0;
  }

  .page-faq .faq-step:nth-child(even) {
    margin-left: auto;
  }

  .page-faq .faq-step__node {
    top: 28px;
    left: auto;
  }

  .page-faq .faq-step:nth-child(odd) .faq-step__node {
    left: calc(100% + 31px);
  }

  .page-faq .faq-step:nth-child(even) .faq-step__node {
    left: auto;
    right: calc(100% + 31px);
  }

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

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

  .page-faq .faq-qa__q::before {
    left: -28px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-timeline__wrap {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-step {
    width: calc(50% - 48px);
  }

  .page-faq .faq-step:nth-child(odd) .faq-step__node {
    left: calc(100% + 39px);
  }

  .page-faq .faq-step:nth-child(even) .faq-step__node {
    right: calc(100% + 39px);
  }
}

@media (max-width: 639px) {
  .page-faq .faq-hero__panel {
    margin-top: 22px;
  }

  .page-faq .faq-step__num {
    font-size: 58px;
  }

  .page-faq .faq-qa__q::before {
    left: -14px;
    top: 24px;
  }

  .page-faq .faq-qa__a {
    padding-right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-timeline::before {
    animation: none;
  }

  .page-faq .faq-qa__a {
    animation: none;
  }

  .page-faq .faq-step__node,
  .page-faq .faq-qa__q::after,
  .page-faq .index-rail__link,
  .page-faq .faq-hero__steps a {
    transition: none;
  }

  .page-faq .faq-step.is-visible .faq-step__node {
    transform: rotate(45deg);
  }
}