.page-faq {
  --faq-corner: 18px;
  --faq-line: rgba(23, 63, 58, .16);
  --faq-soft: rgba(63, 124, 110, .07);
  background-color: var(--stone);
  background-image: radial-gradient(rgba(111, 106, 94, .15) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  overflow-x: hidden;
  padding-bottom: clamp(36px, 7vw, 84px);
}

.page-faq .breadcrumbs {
  padding-top: clamp(14px, 3vw, 22px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

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

.page-faq .breadcrumbs a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(114deg, rgba(63, 124, 110, .07) 0 2px, transparent 2px 16px);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--celadon);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--deep);
  max-width: 15ch;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15.5px, 1.9vw, 17.5px);
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 8px 8px 0;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  box-shadow: var(--shadow);
  transform: rotate(-1.3deg);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-hero__figure .figure__media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(232, 201, 122, .55), rgba(63, 124, 110, .38));
}

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

.page-faq .figure__cap {
  padding: 8px 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--warm);
}

/* ---------- 三个起点 ---------- */

.page-faq .faq-quick {
  padding: clamp(20px, 4vw, 36px) 0 clamp(26px, 4vw, 42px);
}

.page-faq .faq-quick__head {
  margin-bottom: clamp(16px, 3vw, 26px);
  border-left: 3px solid var(--gold);
  padding-left: 14px;
}

.page-faq .faq-quick__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--brick);
}

.page-faq .faq-quick__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--deep);
}

.page-faq .faq-quick__grid {
  display: grid;
  gap: 14px;
}

.page-faq .quick-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  background: var(--paper);
  border-top: 5px solid var(--gold);
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-faq .quick-card--deep {
  background: var(--deep);
  border-top-color: var(--gold);
}

.page-faq .quick-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--brick);
}

.page-faq .quick-card--deep .quick-card__num {
  color: var(--gold);
}

.page-faq .quick-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--deep);
}

.page-faq .quick-card--deep .quick-card__title {
  color: var(--paper);
}

.page-faq .quick-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .quick-card--deep .quick-card__text {
  color: rgba(255, 253, 246, .84);
}

.page-faq .quick-card__link {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--sea);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 90, 120, .35);
  align-self: flex-start;
}

.page-faq .quick-card__link:hover {
  border-bottom-color: var(--sea);
}

.page-faq .quick-card__link--light {
  color: var(--gold);
  border-bottom-color: rgba(232, 201, 122, .5);
}

.page-faq .quick-card__link--light:hover {
  border-bottom-color: var(--gold);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
  padding-top: 6px;
  padding-bottom: clamp(20px, 4vw, 40px);
}

/* 索引 */

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--celadon);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 2px 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__list li {
  flex: none;
}

.page-faq .faq-index__link {
  display: block;
  padding: 9px 14px;
  white-space: nowrap;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--deep);
  text-decoration: none;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-index__list li:first-child .faq-index__link {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--deep);
  font-weight: 700;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--sea);
}

/* 筛选 */

.page-faq .filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  padding: 2px 0 12px;
  overflow-x: auto;
  border-bottom: 1px solid var(--faq-line);
  scrollbar-width: thin;
}

.page-faq .filter-btn {
  flex: none;
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--deep);
  background: var(--paper);
  border: 1px solid var(--faq-line);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .filter-btn:hover {
  background: var(--gold);
  border-color: var(--gold);
}

.page-faq .filter-btn.is-active {
  background: var(--deep);
  border-color: var(--deep);
  color: var(--paper);
}

/* 问答流 */

.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(26px, 4vw, 42px);
}

.page-faq .faq-chapter {
  scroll-margin-top: 88px;
}

.page-faq .section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--deep);
}

.page-faq .section-head__num {
  flex: none;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--paper);
  background: var(--deep);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
}

.page-faq .section-head h2 {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 3vw, 27px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--deep);
}

/* 问答卡 */

.page-faq .qa-card {
  margin-bottom: 10px;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  border-left: 4px solid var(--celadon);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .qa-card:last-child {
  margin-bottom: 0;
}

.page-faq .faq-chapter--entry .qa-card {
  border-left-color: var(--brick);
}

.page-faq .faq-chapter--check .qa-card {
  border-left-color: var(--deep);
}

.page-faq .qa-card[open] {
  background: var(--paper);
  border-left-color: var(--sea);
}

.page-faq .qa-card__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-card__q:hover .qa-card__title {
  color: var(--sea);
}

.page-faq .qa-card__num {
  flex: none;
  padding: 3px 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--paper);
  background: var(--celadon);
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 0 100%);
}

.page-faq .faq-chapter--entry .qa-card__num {
  background: var(--brick);
}

.page-faq .faq-chapter--check .qa-card__num {
  background: var(--deep);
}

.page-faq .qa-card[open] .qa-card__num {
  background: var(--sea);
}

.page-faq .qa-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.5;
  color: var(--deep);
  transition: color .2s var(--ease);
}

.page-faq .qa-card__sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
}

.page-faq .qa-card__sign::before,
.page-faq .qa-card__sign::after {
  content: "";
  position: absolute;
  background: var(--celadon);
  transition: transform .22s var(--ease), background .22s var(--ease);
}

.page-faq .qa-card__sign::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.page-faq .qa-card__sign::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

.page-faq .qa-card[open] .qa-card__sign::before {
  background: var(--brick);
}

.page-faq .qa-card[open] .qa-card__sign::after {
  transform: scaleY(0);
}

.page-faq .qa-card__a {
  margin: 0 16px;
  padding: 14px 0 18px;
  border-top: 1px dashed var(--faq-line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

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

.page-faq .qa-list {
  display: grid;
  gap: 6px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

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

.page-faq .qa-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 2px;
  background: var(--gold);
}

.page-faq .qa-links {
  margin-top: 14px !important;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-faq .qa-links a {
  display: inline-block;
  margin-right: 14px;
  color: var(--sea);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 90, 120, .35);
}

.page-faq .qa-links a:hover {
  border-bottom-color: var(--sea);
}

.page-faq .qa-inline-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--brick);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 59, 46, .4);
}

.page-faq .qa-inline-link:hover {
  border-bottom-color: var(--brick);
}

/* 移动端配图条 */

.page-faq .faq-media {
  display: grid;
  gap: 14px;
  margin: 16px 0;
  padding: 14px;
  background: var(--paper);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .faq-media .figure {
  margin: 0;
}

.page-faq .faq-media .figure__media {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: linear-gradient(140deg, rgba(232, 201, 122, .5), rgba(63, 124, 110, .35));
}

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

.page-faq .faq-media__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--brick);
}

.page-faq .faq-media__text {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-media {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .quick-card:nth-child(2) {
    transform: translateY(18px);
  }

  .page-faq .quick-card:nth-child(3) {
    transform: translateY(7px);
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: clamp(26px, 3.6vw, 52px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
    border-left: 2px solid var(--celadon);
  }

  .page-faq .faq-index__list li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__link {
    position: relative;
    padding: 10px 6px 10px 18px;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -2px;
    white-space: normal;
    font-size: 14px;
    clip-path: none;
  }

  .page-faq .faq-index__list li:first-child .faq-index__link {
    background: transparent;
    color: var(--brick);
    border-left-color: var(--brick);
    font-weight: 700;
  }

  .page-faq .faq-index__list li:first-child .faq-index__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    border: 6px solid transparent;
    border-left-color: var(--brick);
    transform: translate(-100%, -50%);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    color: var(--sea);
    border-left-color: var(--sea);
  }

  .page-faq .filter-bar {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-faq .qa-card__q {
    padding: 17px 20px;
  }

  .page-faq .qa-card__a {
    margin: 0 20px;
    padding: 16px 0 20px;
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .quick-card,
  .page-faq .faq-hero__figure {
    transform: none;
  }
}