.page-faq {
  --faq-rail-w: 236px;
  --faq-rail-top: 104px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.75;
  min-width: 0;
  overflow-x: clip;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

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

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

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

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

.page-faq .breadcrumbs__sep {
  color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 60px);
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--paper);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gold-soft);
}

.page-faq .faq-topics {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-topics a {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 52px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--paper);
  text-decoration: none;
  font-size: 16px;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-topics a:hover {
  color: var(--gold-soft);
  padding-left: 10px;
}

.page-faq .faq-topics a:hover .faq-topics__num {
  color: var(--orange);
}

.page-faq .faq-topics__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
  transition: color .18s var(--ease);
}

.page-faq .faq-topics__arrow {
  margin-left: auto;
  color: var(--muted);
  transition: transform .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-topics a:hover .faq-topics__arrow {
  transform: translateX(4px);
  color: var(--orange);
}

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

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  align-self: start;
}

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

/* ---------- 数据条 ---------- */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  list-style: none;
  margin: 0 0 clamp(28px, 4vw, 44px);
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-stats li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-stats li:last-child {
  border-bottom: 0;
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.1;
  color: var(--orange);
  min-width: 3.4em;
}

.page-faq .faq-stats__label {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: .02em;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(44px, 6vw, 80px);
}

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

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 12px;
  white-space: nowrap;
  border: 1px solid var(--line);
  color: var(--gold-soft);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-rail__link::before {
  content: "";
  flex: none;
  width: 10px;
  height: 2px;
  background: var(--gold);
  transition: background .18s var(--ease), width .18s var(--ease);
}

.page-faq .faq-rail__link:hover {
  border-color: var(--line-strong);
  background: var(--wash);
  color: var(--paper);
}

.page-faq .faq-rail__link:hover::before {
  background: var(--orange);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-body > .faq-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-body > .faq-section + .faq-section {
  margin-top: clamp(30px, 5vw, 56px);
}

.page-faq .faq-section h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.16;
  letter-spacing: .01em;
  color: var(--paper);
  max-width: 20em;
}

.page-faq .faq-section__lead {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gold-soft);
}

.page-faq .faq-subtitle {
  margin: 22px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-section__more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-faq .faq-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--orange);
  background: var(--wash);
  font-size: 14px;
  line-height: 1.8;
  color: var(--gold-soft);
}

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

.page-faq .faq-note a:hover {
  color: var(--orange);
}

/* ---------- 步骤条 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .steps__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: start;
  column-gap: 14px;
  padding: 16px 0 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .steps__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--orange);
}

.page-faq .steps__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .steps__item p {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-q > summary {
  position: relative;
  min-height: 52px;
  padding: 15px 40px 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-q > summary:hover {
  color: var(--gold-soft);
}

.page-faq .faq-q > summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-q[open] > summary::after {
  content: "–";
}

.page-faq .faq-q__idx {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
  vertical-align: 1px;
}

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

.page-faq .faq-q__body p {
  margin: 0 0 10px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gold-soft);
}

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

/* ---------- 字段表 ---------- */
.page-faq .field-table {
  margin: 24px 0 0;
  border-top: 1px solid var(--line-strong);
}

.page-faq .field-table__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .field-table dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .field-table dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gold-soft);
}

/* ---------- 状态图例 ---------- */
.page-faq .faq-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-legend__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 分栏模块 ---------- */
.page-faq .faq-split {
  margin-top: 22px;
}

.page-faq .faq-split__aside {
  padding: 18px 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  align-self: start;
}

.page-faq .faq-split__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-split__aside .btn {
  margin-top: 16px;
}

.page-faq .faq-split__media {
  margin: 22px 0 0;
  border: 1px solid var(--line);
}

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

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

.page-faq .tick-list li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gold-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .tick-list li:last-child {
  border-bottom: 0;
}

.page-faq .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 联系方式 ---------- */
.page-faq .contact-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-faq .contact-item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .contact-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .contact-item__value {
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .contact-item__note {
  margin: 2px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .copy-btn {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: var(--line-strong);
  background: var(--panel-2);
}

.page-faq .copy-btn__value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .copy-btn__hint {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-faq .copy-btn[data-copied="true"] .copy-btn__hint {
  color: var(--teal-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 32px;
    padding: 4px 0;
  }

  .page-faq .faq-stats li {
    display: block;
    padding: 16px 0;
    border-bottom: 0;
  }

  .page-faq .faq-stats__num {
    display: block;
    font-size: 32px;
    margin-bottom: 4px;
  }

  .page-faq .field-table__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-faq .faq-split__media {
    margin-top: 24px;
  }

  .page-faq .contact-item {
    grid-template-columns: 110px minmax(0, 1fr);
    column-gap: 20px;
    align-items: start;
  }

  .page-faq .contact-item__label {
    padding-top: 12px;
  }

  .page-faq .contact-item__note {
    grid-column: 2;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr);
    align-items: start;
  }

  .page-faq .faq-hero__media {
    margin-top: 6px;
  }

  .page-faq .faq-main {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    column-gap: clamp(28px, 3.4vw, 52px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-rail-top);
    align-self: start;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
    border-top: 1px solid var(--line-soft);
  }

  .page-faq .faq-rail__link {
    min-height: 46px;
    padding: 10px 0;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-rail__link::before {
    width: 0;
  }

  .page-faq .faq-rail__link:hover {
    background: transparent;
    padding-left: 6px;
  }

  .page-faq .faq-rail__link:hover::before {
    width: 12px;
  }

  .page-faq .faq-q > summary {
    padding-right: 52px;
  }

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

@media (min-width: 1120px) {
  .page-faq .faq-hero__title {
    font-size: clamp(48px, 4.6vw, 64px);
  }

  .page-faq .faq-topics a {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-topics a,
  .page-faq .faq-topics__arrow,
  .page-faq .faq-topics__num,
  .page-faq .faq-rail__link,
  .page-faq .faq-rail__link::before,
  .page-faq .copy-btn,
  .page-faq .faq-q > summary {
    transition: none;
  }

  .page-faq .faq-topics a:hover,
  .page-faq .faq-topics a:hover .faq-topics__arrow,
  .page-faq .faq-rail__link:hover {
    transform: none;
    padding-left: 0;
  }
}