.page-faq {
  --faq-card-bg: #fbf8f1;
  --faq-card-border: var(--gold-light);
  --faq-card-shadow: rgba(11, 29, 42, 0.06);
  --faq-num-red: var(--red);
  --faq-meta-color: var(--slate);
  --faq-rule: var(--gold-light);
  --faq-accent-gold: var(--gold);
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--ink) 0% 55%, var(--gold) 55% 82%, var(--red) 82% 100%);
  pointer-events: none;
}

.page-faq .page-faq__inner {
  padding-top: 32px;
  padding-bottom: 96px;
}

.page-faq .breadcrumbs {
  margin-bottom: 36px;
  font-size: 13px;
  color: var(--slate);
}

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

.page-faq .faq-hero__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-hero__top .section-hint {
  margin: 0;
  color: var(--red);
  font-size: 12px;
  letter-spacing: 0.22em;
}

.page-faq .faq-hero__note {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.06em;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.14;
  color: var(--ink);
  letter-spacing: 0.02em;
  max-width: 12em;
  margin: 0 0 24px;
}

.page-faq .faq-hero h1 span {
  position: relative;
  color: var(--azure);
  z-index: 0;
}

.page-faq .faq-hero h1 span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 10px;
  background: linear-gradient(90deg, var(--gold-light), rgba(199, 164, 108, 0.14));
  z-index: -1;
}

.page-faq .faq-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 58ch;
  margin: 0 0 30px;
}

.page-faq .faq-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 32px;
}

.page-faq .faq-topic-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--gold);
  background: rgba(199, 164, 108, 0.08);
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.2;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-topic-tab:hover,
.page-faq .faq-topic-tab:focus-visible {
  background: var(--gold);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 3px 3px 0 rgba(11, 29, 42, 0.12);
  outline: none;
}

.page-faq .faq-topic-tab__no {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--red);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-topic-tab:hover .faq-topic-tab__no,
.page-faq .faq-topic-tab:focus-visible .faq-topic-tab__no {
  color: #fff;
}

.page-faq .faq-stats-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--ink);
  padding: 20px;
  border: 1px solid var(--gold);
  border-left: 4px solid var(--gold);
  margin: 0 0 8px;
}

.page-faq .faq-stats-panel .faq-stat {
  padding: 12px 14px;
}

.page-faq .faq-stats-panel .data-panel__label {
  display: block;
  color: var(--cyan-gray);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.page-faq .faq-stats-panel .data-value {
  display: block;
  font-family: var(--font-data);
  font-size: 26px;
  color: var(--gold);
  font-weight: 700;
  line-height: 1.1;
}

.page-faq .faq-chapter {
  margin-top: 96px;
  position: relative;
}

.page-faq .faq-chapter__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  gap: 16px;
  border-bottom: 1px solid var(--faq-rule);
  padding-bottom: 20px;
}

.page-faq .faq-chapter__num {
  font-family: var(--font-display);
  font-size: clamp(50px, 9vw, 92px);
  line-height: 0.9;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.04em;
  user-select: none;
}

.page-faq .faq-chapter__titles .section-hint {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--slate);
}

.page-faq .faq-chapter__titles h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
  color: var(--ink);
  margin: 4px 0 0;
}

.page-faq .faq-chapter__side {
  writing-mode: vertical-rl;
  color: var(--slate);
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.24em;
  line-height: 1.2;
  padding-bottom: 4px;
  white-space: nowrap;
}

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

.page-faq .faq-chapter__intro {
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 56ch;
  margin: 0 0 28px;
}

.page-faq .media-frame {
  margin: 0 0 28px;
  border: 1px solid var(--gold-light);
  background: var(--ink);
  position: relative;
  overflow: hidden;
}

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

.page-faq .media-caption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--cyan-gray);
  background: rgba(11, 29, 42, 0.92);
  border-top: 1px solid rgba(199, 164, 108, 0.3);
}

.page-faq .faq-device-figure {
  width: calc(100% - 12px);
  max-width: 560px;
  margin: 0 0 28px auto;
  border-bottom: 3px solid var(--gold);
}

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

.page-faq .faq-card {
  position: relative;
  background: var(--faq-card-bg);
  border: 1px solid var(--gold-light);
  border-bottom: 3px solid var(--gold);
  box-shadow: 3px 3px 0 var(--faq-card-shadow);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-card[open] {
  box-shadow: 5px 5px 0 rgba(11, 29, 42, 0.09);
  transform: translateY(-2px);
}

.page-faq .faq-card summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 22px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-card summary:hover {
  color: var(--azure);
}

.page-faq .faq-card summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .faq-card__no {
  flex-shrink: 0;
  background: var(--faq-num-red);
  color: #fff;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1;
  padding: 7px 10px 6px;
  transform: skew(-12deg);
  display: inline-block;
  min-width: 30px;
  text-align: center;
  box-shadow: 1px 1px 0 rgba(11, 29, 42, 0.2);
}

.page-faq .faq-card summary::after {
  content: "展开";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-card[open] summary::after {
  content: "收起";
  color: var(--pine);
}

.page-faq .faq-card__a {
  padding: 0 22px 22px 50px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

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

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

.page-faq .faq-card__link a {
  color: var(--red);
  text-decoration: underline;
  text-decoration-color: rgba(178, 59, 59, 0.35);
  text-underline-offset: 4px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  transition: text-decoration-color var(--dur) var(--ease);
}

.page-faq .faq-card__link a:hover {
  text-decoration-color: var(--red);
}

.page-faq .faq-chapter__body--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-faq .faq-update-figure {
  margin: 0;
  border-left: 4px solid var(--gold);
  box-shadow: 6px 6px 0 rgba(11, 29, 42, 0.08);
}

.page-faq .faq-index {
  margin-top: 110px;
  background: var(--ink);
  color: var(--paper);
  padding: 44px 28px 36px;
  border-top: 4px solid var(--gold);
  position: relative;
}

.page-faq .faq-index::before {
  content: "索引";
  position: absolute;
  top: -14px;
  left: 28px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1;
  padding: 6px 14px 5px;
  letter-spacing: 0.18em;
}

.page-faq .faq-index__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.page-faq .faq-index__top .section-hint {
  margin: 0;
  color: var(--gold);
  font-size: 11px;
  letter-spacing: 0.24em;
}

.page-faq .faq-index__top h2 {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--paper);
  margin: 4px 0 0;
}

.page-faq .faq-index__count {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--cyan-gray);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  columns: 1;
  column-gap: 44px;
}

.page-faq .faq-index__list li {
  break-inside: avoid;
  border-bottom: 1px solid rgba(244, 239, 230, 0.12);
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 4px;
  color: var(--paper);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--gold);
  padding-left: 10px;
  outline: none;
}

.page-faq .faq-index__n {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--gold);
  min-width: 28px;
  flex-shrink: 0;
}

.page-faq .faq-outro {
  margin-top: 64px;
  padding-top: 44px;
  border-top: 1px solid var(--gold-light);
  display: grid;
  gap: 26px;
  text-align: center;
}

.page-faq .faq-outro .section-hint {
  margin: 0;
  color: var(--red);
  font-size: 11px;
  letter-spacing: 0.24em;
}

.page-faq .faq-outro h2 {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--ink);
  margin: 8px 0 10px;
}

.page-faq .faq-outro p {
  color: var(--slate);
  line-height: 1.8;
  max-width: 52ch;
  margin: 0 auto;
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.page-faq .faq-outro__actions .btn {
  min-width: 150px;
  text-align: center;
}

@media (min-width: 680px) {
  .page-faq .faq-stats-panel {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-device-figure {
    max-width: 72%;
    margin-right: 6%;
  }

  .page-faq .faq-index__list {
    columns: 2;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-chapter__body--split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }

  .page-faq .faq-update-figure {
    margin-top: 34px;
    transform: rotate(0.6deg);
  }

  .page-faq .faq-chapter:nth-of-type(even) .faq-chapter__num {
    -webkit-text-fill-color: transparent;
  }

  .page-faq .faq-chapter:nth-of-type(3) .faq-chapter__body {
    margin-top: 20px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-chapter__body {
    margin-top: 36px;
  }

  .page-faq .faq-card {
    margin-left: 8px;
  }

  .page-faq .faq-card:nth-child(2n) {
    margin-left: 28px;
    transform: rotate(0.3deg);
  }

  .page-faq .faq-card:nth-child(2n):hover {
    transform: rotate(0deg) translateY(-2px);
  }

  .page-faq .faq-card:nth-child(odd) {
    margin-left: 0;
    transform: rotate(-0.3deg);
  }

  .page-faq .faq-card:nth-child(odd):hover {
    transform: rotate(0deg) translateY(-2px);
  }

  .page-faq .faq-index {
    padding-left: 48px;
    padding-right: 48px;
  }
}