.page-faq {
  display: block;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
}

.page-faq .xt-shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: 26px 0 44px;
  background:
    radial-gradient(120% 100% at 10% -20%, rgba(22, 227, 210, 0.13), transparent 62%),
    radial-gradient(90% 80% at 100% 0%, rgba(233, 180, 76, 0.07), transparent 58%),
    linear-gradient(180deg, var(--ink), #0a1526);
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 22px;
}

.page-faq .faq-hero__lead h1 {
  margin: 14px 0 0;
  max-width: 17em;
}

.page-faq .faq-hero__lead .xt-lede {
  margin: 16px 0 0;
  max-width: 36em;
  color: var(--text);
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-hero__facts > div {
  background: var(--panel);
  padding: 15px 14px;
}

.page-faq .faq-fact__label {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-fact__num {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--gold);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-jump {
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--edge);
}

.page-faq .faq-jump__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

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

.page-faq .faq-jump__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--edge);
  color: var(--text);
  font-size: var(--fs-14);
  text-decoration: none;
  transition: color 120ms var(--ease), padding-left 120ms var(--ease);
}

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

.page-faq .faq-jump__link .xt-mono {
  color: var(--cyan);
  font-size: var(--fs-12);
}

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

/* ---------- 章节外壳 ---------- */
.page-faq .faq-section {
  padding: 46px 0;
  border-bottom: 1px solid var(--edge);
}

.page-faq .faq-section--last {
  border-bottom: 0;
  padding-bottom: 64px;
}

.page-faq .faq-section .xt-section__head {
  margin-bottom: 30px;
}

.page-faq .faq-section .xt-h2 {
  margin: 12px 0 0;
  max-width: 22em;
}

.page-faq .faq-section .xt-lede {
  margin: 12px 0 0;
  max-width: 48em;
  color: var(--mist);
}

.page-faq .faq-note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  background: rgba(13, 26, 49, 0.72);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--mist);
}

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

/* ---------- 视觉占位 ---------- */
.page-faq .faq-visual {
  margin: 0;
}

.page-faq .faq-visual .xt-media {
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-visual .xt-figure__cap {
  margin-top: 10px;
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-faq #cycle .faq-visual {
  margin-bottom: 34px;
}

/* ---------- 周期时间轴 ---------- */
.page-faq .faq-track {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-faq .faq-track__item {
  position: relative;
  padding: 0 0 26px 58px;
}

.page-faq .faq-track__item::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 4px;
  width: 1px;
  background: var(--edge);
}

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

.page-faq .faq-track__node {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: var(--panel);
  color: var(--cyan);
  font-size: var(--fs-14);
  transition: border-color 120ms var(--ease), background-color 120ms var(--ease);
}

.page-faq .faq-track__item:hover .faq-track__node {
  border-color: var(--cyan);
  background: #0b2733;
}

.page-faq .faq-track__item .xt-h3 {
  margin: 8px 0 0;
  color: var(--text-strong);
}

.page-faq .faq-track__dur {
  margin: 8px 0 0;
  font-size: var(--fs-14);
  color: var(--text);
}

.page-faq .faq-track__dur .xt-mono {
  color: var(--gold);
  font-weight: 600;
}

.page-faq .faq-track__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-track__list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 7px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--cyan-deep);
}

.page-faq .faq-track__mark {
  margin: 14px 0 0;
  font-size: var(--fs-14);
  color: var(--text-strong);
}

.page-faq .faq-track__mark .xt-tag {
  margin-right: 8px;
}

/* ---------- 费用问答 ---------- */
.page-faq .faq-cost {
  display: grid;
  gap: 32px;
}

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

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

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa__item {
  border-top: 1px solid var(--edge);
}

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

.page-faq .faq-qa__item > summary {
  position: relative;
  display: block;
  padding: 15px 38px 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--text-strong);
  transition: color 120ms var(--ease);
}

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

.page-faq .faq-qa__item > summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1.45;
  color: var(--cyan);
}

.page-faq .faq-qa__item[open] > summary {
  color: var(--cyan);
}

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

.page-faq .faq-qa__item > summary:hover {
  color: var(--cyan);
}

.page-faq .faq-qa__item .xt-details__body {
  padding: 0 0 16px;
}

.page-faq .faq-qa__item .xt-details__body p {
  margin: 0 0 0.85em;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--text);
}

.page-faq .faq-qa__item .xt-details__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-qa__item .xt-details__body .xt-mono {
  color: var(--gold);
  font-weight: 600;
}

.page-faq .faq-qa__item .xt-details__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 疑问分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 26px;
}

.page-faq .faq-group {
  padding-left: 18px;
  border-left: 2px solid var(--edge);
}

.page-faq .faq-group__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  letter-spacing: -0.005em;
  color: var(--text-strong);
}

.page-faq .faq-group .faq-qa__item > summary {
  font-size: var(--fs-16);
  padding: 13px 34px 13px 0;
}

.page-faq .faq-group .faq-qa__item > summary::after {
  top: 12px;
  font-size: var(--fs-16);
}

.page-faq .faq-group .faq-qa__item .xt-details__body p {
  font-size: var(--fs-14);
}

/* ---------- 名词对照 ---------- */
.page-faq .faq-glossary {
  border-radius: var(--radius);
  padding: 28px 20px;
  border: 1px solid rgba(16, 25, 43, 0.14);
  color: var(--paper-ink);
}

.page-faq .faq-glossary .xt-section__head {
  margin-bottom: 22px;
}

.page-faq .faq-glossary .xt-h2 {
  color: var(--paper-ink);
}

.page-faq .faq-glossary .xt-lede {
  color: #46536b;
}

.page-faq .faq-glossary .xt-modnum {
  color: var(--cyan-deep);
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: var(--fs-14);
}

.page-faq .faq-table__cap {
  caption-side: top;
  text-align: left;
  padding-bottom: 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: #6b7688;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  text-align: left;
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid rgba(16, 25, 43, 0.14);
  vertical-align: top;
  line-height: 1.7;
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
  border-bottom-color: rgba(16, 25, 43, 0.32);
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table td:nth-child(2) {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--paper-ink);
  white-space: nowrap;
}

.page-faq .faq-table td:nth-child(3) {
  color: #46536b;
}

.page-faq .faq-table tbody tr:hover td,
.page-faq .faq-table tbody tr:hover th {
  background: rgba(14, 143, 138, 0.09);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help__grid {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-help__card {
  background: var(--panel);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-faq .faq-help__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-help__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-strong);
  word-break: break-word;
}

.page-faq .faq-help__meta {
  margin: 10px 0 16px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-help__card .xt-btn {
  margin-top: auto;
}

.page-faq .faq-help__tips {
  margin-top: 34px;
  padding: 26px 22px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(13, 26, 49, 0.9), rgba(6, 12, 24, 0.9));
}

.page-faq .faq-help__tips .xt-h3 {
  margin: 0 0 14px;
  color: var(--text-strong);
}

.page-faq .faq-help__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

.page-faq .faq-help__tips .faq-note {
  margin-top: 20px;
  background: rgba(6, 12, 24, 0.6);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-faq .xt-shell {
    padding: 0 32px;
  }

  .page-faq .faq-hero {
    padding: 34px 0 56px;
  }

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

  .page-faq .faq-section--last {
    padding-bottom: 84px;
  }

  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 40px;
  }

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

  .page-faq .faq-glossary {
    padding: 40px 36px;
  }

  .page-faq .faq-help__tips {
    padding: 32px 30px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 54px;
    align-items: start;
  }

  .page-faq .faq-hero__aside {
    padding-top: 8px;
  }

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

  .page-faq .faq-track__item {
    padding: 56px 40px 0 0;
  }

  .page-faq .faq-track__item::before {
    left: 20px;
    right: 0;
    top: 19px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .page-faq .faq-cost {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 50px;
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .faq-track__node,
  .page-faq .faq-qa__item > summary {
    transition: opacity 120ms linear;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .faq-jump__link:focus-visible {
    padding-left: 0;
  }
}