.page-faq {
  --faq-line: rgba(14, 42, 71, 0.18);
  --faq-shadow: rgba(14, 42, 71, 0.16);
  background: var(--tb-paper);
  color: var(--tb-grey);
  font-family: var(--tb-font);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--tb-white);
  border-bottom: var(--tb-edge) solid var(--tb-ink);
  padding: 20px 0 44px;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 52%;
  height: 100%;
  background-image: repeating-linear-gradient(118deg, rgba(22, 87, 184, 0.09) 0 1px, transparent 1px 14px);
  pointer-events: none;
}

.page-faq .faq-hero .tb-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: 18px;
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  font-size: clamp(32px, 7.4vw, 66px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--tb-ink);
}

.page-faq .faq-hero__lead {
  max-width: 48ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--tb-grey);
}

.page-faq .faq-rail {
  border: var(--tb-edge) solid var(--tb-ink);
  background: var(--tb-mist);
  box-shadow: 8px 8px 0 var(--faq-shadow);
  padding: 16px 18px 18px;
}

.page-faq .faq-rail__label {
  margin: 0 0 10px;
  font-family: var(--tb-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tb-ink);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(14, 42, 71, 0.22);
  color: var(--tb-ink);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s var(--tb-ease), padding-left 0.2s var(--tb-ease);
}

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

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--tb-ice);
  padding-left: 6px;
}

.page-faq .faq-rail__arrow {
  font-family: var(--tb-mono);
  color: var(--tb-gold);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-top: 36px;
  padding-bottom: 64px;
}

/* 索引：移动端横向胶囊 */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__kicker {
  margin: 0 0 10px;
  font-family: var(--tb-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tb-ink);
}

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

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 2px solid var(--tb-ink);
  background: var(--tb-white);
  color: var(--tb-ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s var(--tb-ease), color 0.2s var(--tb-ease);
}

.page-faq .faq-index__num {
  font-family: var(--tb-mono);
  font-size: 11px;
  color: var(--tb-gold);
}

.page-faq .faq-index__count {
  font-family: var(--tb-mono);
  font-size: 11px;
  color: var(--tb-grey);
}

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

.page-faq .faq-index__link[aria-current="true"] {
  background: var(--tb-ink);
  color: var(--tb-white);
}

.page-faq .faq-index__link[aria-current="true"] .faq-index__num {
  color: var(--tb-gold-lt);
}

.page-faq .faq-index__link[aria-current="true"] .faq-index__count {
  color: var(--tb-mist);
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 30px;
  min-width: 0;
}

.page-faq .faq-group {
  background: var(--tb-white);
  border: var(--tb-edge) solid var(--tb-ink);
  box-shadow: 8px 8px 0 var(--faq-shadow);
  scroll-margin-top: calc(var(--tb-top-h) + 16px);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 14px;
  align-items: start;
  padding: 18px 18px 16px;
  background: var(--tb-mist);
  border-bottom: var(--tb-edge) solid var(--tb-ink);
}

.page-faq .faq-group__num {
  font-family: var(--tb-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--tb-gold);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--tb-ink);
}

.page-faq .faq-group__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--tb-grey);
}

.page-faq .faq-group__head .tb-tag {
  grid-column: 2;
  justify-self: start;
}

.page-faq .faq-group__figure {
  margin: 0;
  border: 0;
  border-bottom: var(--tb-edge) solid var(--tb-ink);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  display: block;
}

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

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

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 48px 16px 22px;
  cursor: pointer;
  list-style: none;
  transition: background 0.2s var(--tb-ease);
}

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

.page-faq .faq-item__q::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--tb-gold);
  opacity: 0;
  transition: opacity 0.2s var(--tb-ease);
}

.page-faq .faq-item__q:hover {
  background: rgba(214, 230, 247, 0.42);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--tb-ice);
  outline-offset: -2px;
}

.page-faq .faq-item__marker {
  flex: 0 0 auto;
  padding-top: 2px;
  font-family: var(--tb-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tb-gold);
}

.page-faq .faq-item__text {
  font-size: clamp(15px, 2.4vw, 17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--tb-ink);
}

.page-faq .faq-item__sign {
  position: absolute;
  right: 20px;
  top: 22px;
  width: 13px;
  height: 13px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--tb-ink);
  transition: transform 0.2s var(--tb-ease), background 0.2s var(--tb-ease);
}

.page-faq .faq-item__sign::before {
  left: 0;
  top: 5.5px;
  width: 13px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  left: 5.5px;
  top: 0;
  width: 2px;
  height: 13px;
}

.page-faq .faq-item[open] .faq-item__q::before {
  opacity: 1;
}

.page-faq .faq-item[open] .faq-item__q {
  background: rgba(214, 230, 247, 0.55);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__sign::before,
.page-faq .faq-item[open] .faq-item__sign::after {
  background: var(--tb-gold);
}

.page-faq .faq-item__a {
  padding: 2px 22px 20px 46px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tb-grey);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 62ch;
}

/* 步骤编号 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faq-step;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  max-width: 58ch;
}

.page-faq .faq-steps > li {
  counter-increment: faq-step;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .faq-steps > li::before {
  content: counter(faq-step, decimal-leading-zero);
  font-family: var(--tb-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--tb-gold);
}

/* ---------- 末尾重音块 ---------- */
.page-faq .faq-help {
  background: var(--tb-ink);
  color: var(--tb-white);
  padding: 48px 0 56px;
  scroll-margin-top: calc(var(--tb-top-h) + 16px);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-help__kicker {
  margin: 0 0 12px;
  font-family: var(--tb-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tb-gold-lt);
}

.page-faq .faq-help__kicker::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 3px;
  margin-right: 10px;
  vertical-align: 3px;
  background: var(--tb-gold);
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--tb-white);
}

.page-faq .faq-help__lead {
  margin: 0 0 20px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tb-mist);
}

.page-faq .faq-help__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(200, 150, 60, 0.5);
}

.page-faq .faq-help__contact > li {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(200, 150, 60, 0.3);
}

.page-faq .faq-help__key {
  font-family: var(--tb-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tb-gold-lt);
}

.page-faq .faq-help__val {
  font-size: 15px;
  color: var(--tb-white);
  word-break: break-word;
}

.page-faq .faq-help__tips {
  border: var(--tb-edge) solid var(--tb-gold);
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
}

.page-faq .faq-help__tips-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--tb-white);
}

.page-faq .faq-steps--light > li {
  color: var(--tb-mist);
}

.page-faq .faq-steps--light > li::before {
  color: var(--tb-gold-lt);
}

.page-faq .faq-help__btn {
  margin-top: 20px;
  width: 100%;
  text-align: center;
}

/* ---------- 焦点与减弱动效 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--tb-ice);
  outline-offset: 2px;
}

.page-faq .faq-help a:focus-visible {
  outline-color: var(--tb-gold-lt);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__q,
  .page-faq .faq-rail__link,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-item__q::before {
    transition: none;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 24px 0 56px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, 0.62fr);
    gap: 44px;
    align-items: end;
  }

  .page-faq .faq-group__head {
    grid-template-columns: auto minmax(0, 1fr) auto;
    padding: 22px 24px 20px;
  }

  .page-faq .faq-group__head .tb-tag {
    grid-column: 3;
    align-self: start;
  }

  .page-faq .faq-item__q {
    padding: 18px 56px 18px 26px;
  }

  .page-faq .faq-item__a {
    padding: 4px 40px 22px 52px;
    font-size: 16px;
  }

  .page-faq .faq-help {
    padding: 64px 0 72px;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-help__btn {
    width: auto;
    display: inline-block;
    text-align: left;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding-top: 44px;
    padding-bottom: 84px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--tb-top-h) + 28px);
    padding-right: 4px;
  }

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

  .page-faq .faq-index__list > li {
    flex: initial;
  }

  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: baseline;
    width: 100%;
    padding: 11px 10px 11px 14px;
    border: 0;
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--faq-line);
    background: transparent;
    font-size: 15px;
    white-space: normal;
    transition: background 0.2s var(--tb-ease), border-color 0.2s var(--tb-ease), color 0.2s var(--tb-ease);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: var(--tb-white);
    border-left-color: var(--tb-ice-lt);
    color: var(--tb-ink);
  }

  .page-faq .faq-index__link[aria-current="true"] {
    background: var(--tb-white);
    border-left-color: var(--tb-gold);
    color: var(--tb-ink);
    font-weight: 800;
  }

  .page-faq .faq-index__link[aria-current="true"] .faq-index__num {
    color: var(--tb-gold);
  }

  .page-faq .faq-index__link[aria-current="true"] .faq-index__count {
    color: var(--tb-grey);
  }

  .page-faq .faq-index__foot {
    display: block;
    margin: 16px 0 0;
    padding: 12px 14px;
    border: 2px solid var(--tb-ink);
    background: var(--tb-mist);
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--tb-ink);
  }

  .page-faq .faq-index__foot-num {
    font-family: var(--tb-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--tb-ice);
    margin-right: 4px;
  }
}
</｜｜DSML｜｜ parameter>
</result>