.page-faq {
  --faq-accent: var(--lime);
  background: var(--night);
  color: var(--white);
  overflow-wrap: break-word;
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: .3;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 88%);
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
}

.page-faq .faq-hero__lede h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 60px);
  line-height: 1.1;
  letter-spacing: -.01em;
  margin: 14px 0 20px;
  max-width: 15em;
}

.page-faq .faq-hero__lede .lead {
  max-width: 58ch;
  color: var(--muted);
}

.page-faq .faq-hero__lede .btn-row {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-hero__plate {
  align-self: end;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--lime);
  box-shadow: var(--shadow-soft);
  padding: 20px 20px 18px;
}

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

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

.page-faq .faq-plate__list li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--white);
}

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

.page-faq .faq-plate__list .data-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  padding-top: .2em;
}

.page-faq .faq-plate__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--muted);
}

/* ---------- 通用区块头 ---------- */

.page-faq .section-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .section-head h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  margin: 10px 0 12px;
  max-width: 22em;
}

.page-faq .section-head .lead {
  max-width: 62ch;
  color: var(--muted);
}

/* ---------- 步骤区 ---------- */

.page-faq .faq-steps__figure {
  margin: 0 0 clamp(24px, 3.5vw, 40px);
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-faq .faq-steps__figure .img-frame__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-steps__tabs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-rail {
  display: flex;
  flex-direction: column;
  counter-reset: faqstep;
  gap: 0;
}

.page-faq .faq-rail__tab {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 13px 14px 13px 10px;
  background: transparent;
  border: 0;
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail__tab::before {
  content: "0" counter(faqstep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
  text-align: center;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 0;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail__tab:hover {
  color: var(--white);
  background: rgba(245, 247, 250, .04);
}

.page-faq .faq-rail__tab[aria-selected="true"] {
  color: var(--white);
  background: var(--panel);
  border-left-color: var(--accent, var(--lime));
}

.page-faq .faq-rail__tab[aria-selected="true"]::before {
  color: var(--ink);
  background: var(--accent, var(--lime));
  border-color: var(--accent, var(--lime));
  font-weight: 700;
}

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

.page-faq .faq-step {
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent, var(--line-strong));
  box-shadow: var(--shadow-soft);
  padding: clamp(20px, 3vw, 34px);
}

.page-faq .faq-step h3 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.25;
  margin: 0 0 14px;
}

.page-faq .faq-step p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-step p + p,
.page-faq .faq-step p + .faq-step__list,
.page-faq .faq-step p + .faq-step__steps,
.page-faq .faq-step p + .faq-dims,
.page-faq .faq-step p + .faq-rate,
.page-faq .faq-step .faq-rate + p,
.page-faq .faq-step .faq-dims + p,
.page-faq .faq-step .faq-step__steps + p {
  margin-top: 16px;
}

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

.page-faq .faq-step__list li,
.page-faq .faq-step__steps li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 2px;
  background: var(--accent, var(--lime));
}

.page-faq .faq-step__steps {
  counter-reset: faqorder;
}

.page-faq .faq-step__steps li {
  counter-increment: faqorder;
}

.page-faq .faq-step__steps li::before {
  content: counter(faqorder) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent, var(--lime));
}

.page-faq .faq-step__flag {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--night);
  border-left: 3px solid var(--accent, var(--lime));
  font-size: 14px;
  line-height: 1.75;
  color: var(--white);
}

.page-faq .faq-dims {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-dims__item {
  background: var(--night);
  padding: 15px 17px;
}

.page-faq .faq-dims__item dt {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 16px;
  color: var(--white);
  margin: 0 0 6px;
}

.page-faq .faq-dims__item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-rate {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  gap: 6px 18px;
  margin: 20px 0 0;
  padding: 16px 18px;
  background: var(--night);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
}

.page-faq .faq-rate__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rate__date {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  letter-spacing: .01em;
}

/* ---------- 字段速查 ---------- */

.page-faq .faq-fields__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-faq .faq-fields__intro h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 32px);
  line-height: 1.22;
  margin: 10px 0 14px;
}

.page-faq .faq-fields__intro .lead {
  max-width: 56ch;
  color: var(--muted);
}

.page-faq .faq-fields__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-fields__figure .img-frame__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .table-scroll {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table__caption {
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.65;
}

.page-faq .faq-table thead th {
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .faq-table tbody tr {
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(200, 255, 61, .06);
}

.page-faq .faq-table tbody td:first-child {
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
}

.page-faq .faq-table tbody td:nth-child(2) {
  color: var(--muted);
}

.page-faq .faq-table tbody td:last-child {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  white-space: nowrap;
}

/* ---------- 常见疑问 ---------- */

.page-faq .faq-asks__list {
  border-top: 1px solid var(--line-strong);
}

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

.page-faq .faq-q[open] {
  background: var(--panel);
}

.page-faq .faq-q__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(15.5px, 1.7vw, 18px);
  line-height: 1.5;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q__summary:hover {
  color: var(--lime);
}

.page-faq .faq-q__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  padding-top: .42em;
}

.page-faq .faq-q__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: .42em;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--lime);
}

.page-faq .faq-q__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-q[open] .faq-q__mark::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-q__body {
  padding: 0 16px 20px 58px;
  max-width: 82ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 收束 ---------- */

.page-faq .faq-cta__box {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(24px, 3.5vw, 44px);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-left: 6px solid var(--lime);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-cta__text h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.24;
  margin: 0 0 14px;
}

.page-faq .faq-cta__text p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-cta__contact {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-faq .faq-cta__actions {
  align-self: center;
}

/* ---------- 响应式 ---------- */

@media (max-width: 859px) {
  .page-faq .faq-rail {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-faq .faq-rail__tab {
    flex: 0 0 auto;
    width: auto;
    grid-template-columns: auto auto;
    gap: 8px;
    padding: 10px 14px;
    border-left: 0;
    border-bottom: 0;
    border-top: 3px solid transparent;
    background: var(--panel);
    white-space: nowrap;
  }

  .page-faq .faq-rail__tab::before {
    padding: 2px 6px;
  }

  .page-faq .faq-rail__tab[aria-selected="true"] {
    border-top-color: var(--accent, var(--lime));
  }

  .page-faq .faq-q__body {
    padding: 0 16px 18px 16px;
  }
}

@media (min-width: 640px) {
  .page-faq .faq-dims {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, .78fr);
    align-items: end;
  }

  .page-faq .faq-steps__tabs {
    grid-template-columns: minmax(210px, 250px) minmax(0, 1fr);
  }

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

@media (min-width: 900px) {
  .page-faq .faq-fields__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  }

  .page-faq .faq-cta__box {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
  }
}

.page-faq {
  --accent: transparent;
}