.page-faq {
  --faq-panel: rgba(19, 31, 51, 0.82);
  --faq-dim: rgba(232, 238, 248, 0.72);
  --faq-paper-dim: rgba(42, 50, 66, 0.78);
  background: var(--ink);
  color: var(--ink-text);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq a {
  color: var(--blue);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 104px 0 40px;
  background:
    radial-gradient(680px 380px at 92% -6%, rgba(228, 64, 42, 0.30), transparent 64%),
    radial-gradient(520px 320px at 4% 4%, rgba(245, 166, 35, 0.13), transparent 66%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
  margin-top: 22px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-faq .faq-h1-mark {
  display: inline-block;
  background: linear-gradient(94deg, var(--gold) 6%, var(--flame) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-lede {
  max-width: 560px;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-dim);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
}

.page-faq .faq-step + .faq-step {
  border-top: 1px dashed var(--line);
}

.page-faq .faq-step-num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
  padding-left: 12px;
  border-left: 3px solid var(--flame);
}

.page-faq .faq-step-title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-faq .faq-step-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-dim);
}

.page-faq .faq-step-desc .mono {
  color: var(--gold-pale);
}

.page-faq .faq-version-note {
  margin-top: 24px;
  padding: 15px 18px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--gold);
  border-radius: 8px;
  background: var(--faq-panel);
  font-size: 14px;
  line-height: 1.72;
  color: rgba(232, 238, 248, 0.84);
}

.page-faq .faq-version-note p {
  margin: 0;
}

.page-faq .faq-version-note strong {
  color: var(--gold-pale);
}

.page-faq .faq-version-note .mono {
  color: var(--gold);
}

.page-faq .faq-hero-visual {
  margin: 0;
  padding: 10px 10px 0;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: linear-gradient(155deg, rgba(228, 64, 42, 0.20), rgba(34, 184, 166, 0.10) 58%, rgba(19, 31, 51, 0.92));
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero-visual img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.page-faq .faq-visual-badge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 10px -10px 0;
  padding: 12px 14px;
  border-radius: 0 0 11px 11px;
  border-top: 1px solid rgba(10, 19, 34, 0.16);
  background: var(--paper);
  color: var(--paper-text);
  font-size: 13px;
}

.page-faq .faq-visual-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--flame);
  font-weight: 700;
}

.page-faq .faq-visual-badge .mono {
  font-size: 14px;
  font-weight: 700;
  color: var(--paper-text);
}

.page-faq .faq-visual-sep {
  color: rgba(42, 50, 66, 0.4);
}

.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  scrollbar-width: none;
}

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

.page-faq .faq-jump a {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.2;
  color: var(--ink-text);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--gold);
  color: var(--gold-pale);
  background: rgba(245, 166, 35, 0.10);
}

/* ---------- 通用章节头 ---------- */
.page-faq .faq-sec-head {
  max-width: 680px;
  margin-bottom: 26px;
}

.page-faq .faq-sec-head h2,
.page-faq .faq-lines h2,
.page-faq .faq-mismatch h2,
.page-faq .faq-support h2,
.page-faq .faq-qa h2 {
  margin: 10px 0 12px;
  font-family: var(--font-body);
  font-weight: 900;
  font-size: clamp(25px, 5vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.page-faq .faq-sec-lede,
.page-faq .faq-lines-lede,
.page-faq .faq-mismatch-lede,
.page-faq .faq-support-lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  padding: 60px 0 56px;
  background: linear-gradient(180deg, rgba(19, 31, 51, 0.55), transparent 46%), var(--ink);
}

.page-faq .faq-sec-head h2 {
  color: #fff;
}

.page-faq .faq-sec-lede {
  color: var(--faq-dim);
}

.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-strong);
  border-left: 3px solid transparent;
  border-radius: 10px;
  background: var(--faq-panel);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(245, 166, 35, 0.55);
  border-left-color: rgba(245, 166, 35, 0.55);
}

.page-faq .faq-item[open] {
  border-color: rgba(244, 239, 228, 0.34);
  border-left-color: var(--flame);
  background: rgba(19, 31, 51, 0.96);
}

.page-faq .faq-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item-index {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
  flex: 0 0 auto;
}

.page-faq .faq-item-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-faq .faq-item-hint {
  display: none;
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(232, 238, 248, 0.48);
}

.page-faq .faq-summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-item[open] .faq-summary::after {
  content: "–";
  color: var(--flame);
}

.page-faq .faq-panel {
  margin-top: 0;
  padding: 14px 16px 18px;
  border-top: 1px dashed var(--line);
}

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

.page-faq .faq-actions li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(232, 238, 248, 0.8);
}

.page-faq .faq-actions li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-faq .faq-actions .mono {
  color: var(--gold-pale);
}

/* ---------- 线路自检 ---------- */
.page-faq .faq-lines {
  padding: 60px 0;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(0deg, rgba(10, 19, 34, 0.035) 0 1px, transparent 1px 7px);
  color: var(--paper-text);
}

.page-faq .faq-lines .eyebrow,
.page-faq .faq-qa .eyebrow {
  color: var(--flame);
}

.page-faq .faq-lines h2 {
  color: var(--paper-text);
}

.page-faq .faq-lines-lede {
  color: var(--faq-paper-dim);
  max-width: 520px;
}

.page-faq .faq-lines-grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-line-steps {
  list-style: none;
  counter-reset: linestep;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-line-steps li {
  position: relative;
  counter-increment: linestep;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(42, 50, 66, 0.86);
}

.page-faq .faq-line-steps li::before {
  content: counter(linestep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--flame);
}

.page-faq .faq-line-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-line-row {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(10, 19, 34, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  font-size: 13.5px;
}

.page-faq .faq-line-id {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--flame);
}

.page-faq .faq-line-name {
  min-width: 0;
  font-weight: 600;
  color: var(--paper-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-faq .faq-line-state {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: rgba(42, 50, 66, 0.68);
  white-space: nowrap;
}

.page-faq .faq-line-lat {
  position: relative;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--paper-text);
  border-bottom: 1px dotted rgba(10, 19, 34, 0.38);
  cursor: help;
  outline-offset: 3px;
}

.page-faq .faq-line-lat::after {
  content: attr(data-range);
  position: absolute;
  right: 0;
  bottom: calc(100% + 7px);
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--gold-pale);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
  z-index: 4;
}

.page-faq .faq-line-lat:hover::after,
.page-faq .faq-line-lat:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.page-faq .faq-line-legend {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(42, 50, 66, 0.6);
}

.page-faq .faq-lines-figure {
  margin: 0;
  padding: 8px 8px 0;
  border: 1px solid rgba(10, 19, 34, 0.2);
  border-radius: 12px;
  background: #fff;
  box-shadow: 6px 6px 0 rgba(10, 19, 34, 0.14);
}

.page-faq .faq-lines-figure img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.page-faq .faq-lines-figure figcaption {
  padding: 10px 6px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(42, 50, 66, 0.7);
}

/* ---------- 版本不匹配 ---------- */
.page-faq .faq-mismatch {
  padding: 60px 0;
  background:
    radial-gradient(560px 340px at 88% 12%, rgba(228, 64, 42, 0.16), transparent 68%),
    var(--ink);
}

.page-faq .faq-mismatch h2 {
  color: #fff;
}

.page-faq .faq-mismatch-lede {
  color: var(--faq-dim);
  max-width: 520px;
}

.page-faq .faq-mismatch-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-symptoms {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-symptoms li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(232, 238, 248, 0.82);
}

.page-faq .faq-symptoms li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--flame);
}

.page-faq .faq-mismatch-tail {
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-dim);
}

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

.page-faq .faq-mismatch-tail a:hover {
  color: var(--gold);
}

.page-faq .faq-swap-card {
  padding: 22px 20px;
  border: 1px solid rgba(245, 166, 35, 0.5);
  border-radius: 12px;
  background: linear-gradient(150deg, rgba(228, 64, 42, 0.18), rgba(19, 31, 51, 0.94) 58%);
  box-shadow: var(--shadow-flame);
}

.page-faq .faq-swap-title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold-pale);
}

.page-faq .faq-swap-list {
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-swap-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(244, 239, 228, 0.18);
}

.page-faq .faq-swap-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-swap-row dt {
  font-size: 13px;
  color: rgba(232, 238, 248, 0.62);
}

.page-faq .faq-swap-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
  text-align: right;
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-support {
  padding: 56px 0 64px;
}

.page-faq .faq-support h2 {
  color: #fff;
}

.page-faq .faq-support-lede {
  color: var(--faq-dim);
}

.page-faq .faq-support-card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 26px;
  padding: 28px 20px 24px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-support-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--track-gradient);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.66;
  color: rgba(232, 238, 248, 0.84);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--jade);
  border-radius: 3px;
}

.page-faq .faq-support-time {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-dim);
}

.page-faq .faq-support-contact {
  padding: 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  background: rgba(10, 19, 34, 0.5);
}

.page-faq .faq-contact-title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold-pale);
}

.page-faq .faq-contact-list {
  margin: 14px 0 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-row dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(232, 238, 248, 0.5);
}

.page-faq .faq-contact-row dd {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-text);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(232, 238, 248, 0.58);
}

/* ---------- 常见疑问 ---------- */
.page-faq .faq-qa {
  padding: 60px 0 68px;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(0deg, rgba(10, 19, 34, 0.03) 0 1px, transparent 1px 7px);
  color: var(--paper-text);
}

.page-faq .faq-qa-head {
  max-width: 620px;
  margin-bottom: 22px;
}

.page-faq .faq-qa h2 {
  color: var(--paper-text);
}

.page-faq .faq-qa-list {
  margin: 0;
  display: grid;
}

.page-faq .faq-qa-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid rgba(10, 19, 34, 0.14);
}

.page-faq .faq-qa-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-qa-row dt {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-text);
}

.page-faq .faq-qa-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-paper-dim);
}

.page-faq .faq-qa-row dd .mono {
  font-weight: 700;
  color: var(--flame);
}

.page-faq .faq-qa-row dd a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-qa-row dd a:hover {
  color: var(--flame);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item-hint {
    display: inline-block;
  }

  .page-faq .faq-summary {
    padding: 18px 20px;
  }

  .page-faq .faq-panel {
    padding: 16px 20px 20px;
  }

  .page-faq .faq-support-card {
    padding: 32px 28px 28px;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-qa-row {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 34px;
    align-items: baseline;
    padding: 20px 0;
  }

  .page-faq .faq-qa-row dt {
    font-size: 17px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-lines-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-mismatch-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: center;
  }

  .page-faq .faq-support-card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-hero {
    padding: 132px 0 64px;
  }

  .page-faq .faq-groups,
  .page-faq .faq-lines,
  .page-faq .faq-mismatch {
    padding: 72px 0;
  }

  .page-faq .faq-support {
    padding: 68px 0 76px;
  }

  .page-faq .faq-qa {
    padding: 72px 0 80px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 52px;
    align-items: start;
  }

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

  .page-faq .faq-step-num {
    font-size: 34px;
  }

  .page-faq .faq-step {
    grid-template-columns: 70px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 0;
  }
}