.page-faq {
  --faq-line: rgba(74, 85, 78, 0.38);
  --faq-line-strong: rgba(74, 85, 78, 0.62);
  background: var(--ink);
  color: var(--cold);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq [id] {
  scroll-margin-top: clamp(72px, 12vw, 112px);
}

.page-faq a:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* 面包屑 */
.page-faq .faq-crumbs {
  padding-top: clamp(14px, 3vw, 26px);
}

.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--cold-50);
}

.page-faq .breadcrumbs .crumb a {
  color: var(--cold-70);
  text-decoration: none;
}

.page-faq .breadcrumbs .crumb a:hover {
  color: var(--mint);
}

.page-faq .crumb-sep {
  color: var(--line);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(30px, 5vw, 60px);
  background:
    radial-gradient(130% 100% at 88% -10%, rgba(23, 73, 58, 0.9), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
}

.page-faq .kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--cold);
  max-width: 15em;
}

.page-faq .lede {
  margin: 0;
  max-width: 42em;
  font-size: var(--fs-m);
  line-height: 1.62;
  color: var(--cold-70);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-hero__actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

/* 首屏右侧路径卡 */
.page-faq .faq-steps {
  border: 1px solid var(--faq-line-strong);
  background: rgba(11, 18, 16, 0.62);
}

.page-faq .faq-steps__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cold-50);
}

.page-faq .faq-steps__head .num {
  color: var(--yellow);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-steps__item + .faq-steps__item {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-steps__link {
  display: grid;
  grid-template-columns: 2.2em minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px;
  text-decoration: none;
  color: var(--cold);
  transition: background 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-faq .faq-steps__link:hover {
  background: rgba(125, 255, 196, 0.07);
  transform: translateX(2px);
}

.page-faq .faq-steps__num {
  font-family: var(--font-mono);
  font-size: var(--fs-s);
  color: var(--yellow);
}

.page-faq .faq-steps__text {
  font-size: var(--fs-s);
  line-height: 1.45;
  color: var(--cold-70);
}

.page-faq .faq-steps__arrow {
  font-family: var(--font-mono);
  color: var(--mint);
}

.page-faq .faq-steps__foot {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cold-50);
}

/* 主体双栏 */
.page-faq .faq-body {
  padding-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .faq-toc {
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-toc__label {
  margin: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  color: var(--cold-50);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  text-decoration: none;
  color: var(--cold-70);
  font-size: var(--fs-s);
  line-height: 1.4;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-toc__link .num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--yellow);
}

.page-faq .faq-toc__link:hover {
  color: var(--cold);
}

/* 章节 */
.page-faq .faq-section {
  padding-bottom: clamp(30px, 5vw, 56px);
  margin-bottom: clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section--last {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-section__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-s);
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.page-faq .faq-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--cold);
}

.page-faq .faq-section__note {
  margin: 0;
  max-width: 52em;
  font-size: var(--fs-s);
  line-height: 1.65;
  color: var(--cold-70);
}

/* 准备清单 */
.page-faq .faq-checks {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-check {
  background: var(--ink-2);
  padding: 14px 16px;
}

.page-faq .faq-check__key {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  color: var(--mint);
}

.page-faq .faq-check__val {
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.6;
  color: var(--cold-70);
}

/* 步骤流 */
.page-faq .faq-flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-flow__item::before {
  content: "";
  position: absolute;
  left: 1.1em;
  top: 38px;
  bottom: -1px;
  width: 1px;
  background: var(--faq-line-strong);
}

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

.page-faq .faq-flow__n {
  font-family: var(--font-mono);
  font-size: var(--fs-s);
  color: var(--mint);
  text-align: center;
  padding-top: 2px;
}

.page-faq .faq-flow__body strong {
  display: block;
  margin-bottom: 4px;
  font-size: var(--fs-m);
  font-weight: 600;
  color: var(--cold);
}

.page-faq .faq-flow__body p {
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.65;
  color: var(--cold-70);
  max-width: 54em;
}

.page-faq .faq-flow--tight .faq-flow__item {
  padding: 12px 0;
}

/* 图像 */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 10px;
  border: 1px solid var(--faq-line-strong);
  background: linear-gradient(180deg, rgba(18, 59, 46, 0.4), rgba(11, 18, 16, 0.55));
}

.page-faq .faq-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-line);
}

.page-faq .faq-figure__cap {
  padding: 10px 4px 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  line-height: 1.55;
  letter-spacing: 0.03em;
  color: var(--cold-50);
}

/* 筛选 chip */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(14px, 2.4vw, 20px);
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--faq-line-strong);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--cold-70);
  background: rgba(44, 52, 48, 0.4);
}

.page-faq .faq-chip--yellow {
  border-color: rgba(242, 194, 48, 0.6);
  color: var(--yellow);
  background: rgba(242, 194, 48, 0.08);
}

/* 颜色图例 */
.page-faq .faq-legend {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 24px);
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  background: rgba(44, 52, 48, 0.3);
}

.page-faq .faq-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: var(--fs-s);
  line-height: 1.5;
  color: var(--cold-70);
}

.page-faq .faq-legend__sw {
  flex: none;
  width: 10px;
  height: 10px;
}

.page-faq .faq-legend__sw--red {
  background: var(--red);
}

.page-faq .faq-legend__sw--yellow {
  background: var(--yellow);
}

.page-faq .faq-legend__sw--mint {
  background: var(--mint);
}

/* 手风琴 */
.page-faq .faq-acc {
  border-top: 1px solid var(--faq-line-strong);
}

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

.page-faq .faq-q__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .accordion-trigger.faq-q__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  margin: 0;
  background: transparent;
  border: 0;
  color: var(--cold);
  font-family: var(--font-body);
  font-size: var(--fs-m);
  line-height: 1.5;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}

.page-faq .accordion-trigger.faq-q__trigger:hover {
  color: var(--mint);
}

.page-faq .faq-q__sign {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--mint);
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-faq .faq-q__trigger[aria-expanded="true"] .faq-q__sign {
  transform: rotate(45deg);
  border-color: var(--mint);
  color: var(--yellow);
}

.page-faq .faq-q__panel {
  padding: 0 0 16px;
}

.page-faq .faq-q__panel p {
  margin: 0 0 8px;
  max-width: 58em;
  font-size: var(--fs-s);
  line-height: 1.7;
  color: var(--cold-70);
}

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

/* 联系准备 */
.page-faq .faq-support {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

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

.page-faq .faq-prep__item {
  display: grid;
  grid-template-columns: 2.2em minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-line);
  font-size: var(--fs-s);
  line-height: 1.6;
  color: var(--cold-70);
}

.page-faq .faq-prep__n {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--yellow);
  padding-top: 3px;
}

.page-faq .faq-contact-card {
  border: 1px solid rgba(242, 194, 48, 0.42);
  background: linear-gradient(160deg, rgba(242, 194, 48, 0.1), rgba(18, 59, 46, 0.5) 55%, rgba(11, 18, 16, 0.7));
  padding: clamp(16px, 3vw, 24px);
}

.page-faq .faq-contact-card__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-faq .faq-contact-card__big {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-l);
  letter-spacing: 0.02em;
  color: var(--cold);
}

.page-faq .faq-contact-card__text {
  margin: 0 0 16px;
  max-width: 46em;
  font-size: var(--fs-s);
  line-height: 1.65;
  color: var(--cold-70);
}

.page-faq .faq-contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-faq .faq-contact-card__actions .btn {
  text-decoration: none;
}

.page-faq .link-arrow {
  color: var(--mint);
  font-size: var(--fs-s);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 255, 196, 0.45);
  padding-bottom: 2px;
}

.page-faq .link-arrow:hover {
  color: var(--cold);
  border-bottom-color: var(--cold);
}

/* 下一步入口 */
.page-faq .faq-next {
  margin-top: clamp(22px, 4vw, 34px);
  padding-top: clamp(16px, 3vw, 22px);
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-next__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cold-50);
}

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

.page-faq .faq-next__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 14px;
  background: var(--ink-2);
  text-decoration: none;
  color: var(--cold-70);
  font-size: var(--fs-s);
  transition: background 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .faq-next__link .num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--yellow);
}

.page-faq .faq-next__link:hover {
  background: rgba(18, 59, 46, 0.8);
  color: var(--cold);
}

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

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

  .page-faq .faq-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-flow__item {
    grid-template-columns: 3em minmax(0, 1fr);
    gap: 16px;
  }

  .page-faq .faq-flow__item::before {
    left: 1.5em;
  }
}

@media (max-width: 479px) {
  .page-faq .faq-steps__link {
    grid-template-columns: 2em minmax(0, 1fr);
  }

  .page-faq .faq-steps__arrow {
    display: none;
  }

  .page-faq .faq-hero__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-faq .faq-steps__link:hover {
    transform: none;
  }
}