.page-faq {
  --faq-line: rgba(168, 178, 193, 0.24);
  --faq-grid: rgba(168, 178, 193, 0.07);
  --faq-ink: #0B0F19;
  --faq-panel: #232A3A;
  --faq-paper: #F5F1E8;
  overflow-x: hidden;
  background: var(--color-ink);
  color: var(--color-body);
}

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

/* ========== Hero ========== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--site-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-top: 28px;
  padding-bottom: 56px;
}

.page-faq .faq-hero__v {
  position: absolute;
  right: 12px;
  top: 24px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: rgba(230, 178, 26, 0.45);
  writing-mode: vertical-rl;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 32px;
  margin-top: 40px;
}

.page-faq .faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.page-faq .faq-hero__title {
  font-size: clamp(36px, 6vw, 62px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-paper);
  margin-top: 14px;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin-top: 18px;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-body);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.page-faq .faq-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--color-silver);
}

/* ========== 图例 ========== */
.page-faq .faq-legend {
  border: 1px solid rgba(230, 178, 26, 0.3);
  background: rgba(35, 42, 58, 0.5);
  padding: 24px;
  align-self: end;
}

.page-faq .faq-legend__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-gold);
}

.page-faq .faq-legend ul {
  list-style: none;
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.page-faq .faq-legend li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-paper);
}

.page-faq .faq-legend li strong {
  font-weight: 700;
}

.page-faq .faq-legend__dot {
  display: block;
  width: 12px;
  height: 12px;
  margin-top: 3px;
  border-radius: 50%;
}

.page-faq .faq-legend__dot--quick {
  background: var(--color-green);
  box-shadow: 0 0 0 4px rgba(0, 196, 140, 0.16);
}

.page-faq .faq-legend__dot--manual {
  background: var(--color-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.16);
}

.page-faq .faq-legend__dot--assist {
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(230, 178, 26, 0.18);
}

.page-faq .faq-legend__meta {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
  font-size: 11px;
  color: var(--color-silver);
}

/* ========== Triage ========== */
.page-faq .faq-triage {
  background: linear-gradient(180deg, var(--color-midnight) 0%, #0D1524 100%);
  padding: 56px 0 64px;
}

.page-faq .faq-triage .container {
  max-width: var(--site-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-triage__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.page-faq .faq-triage__note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-silver);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.page-faq .faq-triage__steps {
  list-style: none;
  margin-top: 32px;
  display: grid;
  gap: 14px;
}

.page-faq .faq-triage__step {
  position: relative;
  border: 1px solid var(--faq-line);
  background: rgba(35, 42, 58, 0.55);
}

.page-faq .faq-triage__step summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-paper);
}

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

.page-faq .faq-triage__step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--color-gold);
}

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

.page-faq .faq-triage__num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-gold);
}

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

.page-faq .faq-triage__panel ul {
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-faq .faq-triage__panel a {
  display: block;
  padding: 6px 0;
  color: var(--color-body);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-triage__panel a::before {
  content: "→ ";
  color: var(--color-gold);
}

.page-faq .faq-triage__panel a:hover,
.page-faq .faq-triage__panel a:focus-visible {
  color: var(--color-paper);
  border-color: rgba(230, 178, 26, 0.4);
}

.page-faq .faq-triage__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 32px;
}

.page-faq .faq-triage__figure {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: center;
  background: rgba(35, 42, 58, 0.45);
  border: 1px solid var(--faq-line);
  padding: 12px;
  margin: 0;
}

.page-faq .faq-triage__figure img {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-triage__figure figcaption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-silver);
}

.page-faq .faq-triage__hint {
  flex: 1 1 260px;
  max-width: 46ch;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--color-silver);
}

/* ========== Sector 通用 ========== */
.page-faq .faq-sector {
  padding: 56px 0;
}

.page-faq .faq-sector .container {
  max-width: var(--site-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-sector--paper {
  background: var(--color-paper);
  color: var(--color-ink);
}

.page-faq .faq-sector--dark {
  background: var(--color-ink);
  color: var(--color-body);
}

.page-faq .faq-sector__grid {
  display: grid;
  gap: 36px;
  align-items: start;
}

/* ========== Sector 索引 ========== */
.page-faq .faq-sector__index {
  position: relative;
  padding: 24px;
}

.page-faq .faq-sector--paper .faq-sector__index {
  background: var(--color-midnight);
  color: var(--color-paper);
}

.page-faq .faq-sector--dark .faq-sector__index {
  background: var(--color-paper);
  color: var(--color-ink);
}

.page-faq .faq-sector__num {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--color-gold);
}

.page-faq .faq-sector__num::before {
  content: "";
  position: absolute;
  inset: 2px;
  background: var(--color-gold);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  opacity: 0.14;
}

.page-faq .faq-sector__num span {
  position: relative;
  z-index: 1;
}

.page-faq .faq-sector__title {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-top: 12px;
}

.page-faq .faq-sector--dark .faq-sector__title {
  color: var(--color-ink);
}

.page-faq .faq-sector--paper .faq-sector__title {
  color: var(--color-paper);
}

.page-faq .faq-sector__desc {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.82;
}

.page-faq .faq-sector--paper .faq-sector__desc {
  color: var(--color-body);
}

.page-faq .faq-sector--dark .faq-sector__desc {
  color: #4A5468;
}

.page-faq .faq-sector__map {
  list-style: none;
  margin-top: 20px;
  display: grid;
}

.page-faq .faq-sector__map a {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(168, 178, 193, 0.25);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-sector--paper .faq-sector__map a {
  color: var(--color-body);
  border-bottom-color: rgba(168, 178, 193, 0.18);
}

.page-faq .faq-sector--dark .faq-sector__map a {
  color: #4A5468;
  border-bottom-color: rgba(11, 15, 25, 0.12);
}

.page-faq .faq-sector__map a::before {
  content: "○";
  font-family: var(--font-mono);
  color: var(--color-gold);
}

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

.page-faq .faq-sector__more {
  display: inline-block;
  margin-top: 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 178, 26, 0.4);
  padding-bottom: 2px;
}

.page-faq .faq-sector__more:hover,
.page-faq .faq-sector__more:focus-visible {
  border-bottom-color: var(--color-gold);
}

/* ========== FAQ List ========== */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--color-silver);
  scroll-margin-top: 20px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-sector--paper .faq-item {
  border-color: rgba(11, 15, 25, 0.14);
  background: rgba(255, 255, 255, 0.55);
}

.page-faq .faq-sector--dark .faq-item {
  background: rgba(35, 42, 58, 0.55);
}

.page-faq .faq-item--quick {
  border-left-color: var(--color-green);
}

.page-faq .faq-item--manual {
  border-left-color: var(--color-orange);
}

.page-faq .faq-item--assist {
  border-left-color: var(--color-gold);
}

.page-faq .faq-item[open] {
  border-color: rgba(230, 178, 26, 0.3);
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 12px;
  padding: 18px 20px;
  cursor: pointer;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-gold);
}

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

.page-faq .faq-item__marker {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-silver);
  flex: none;
  align-self: center;
}

.page-faq .faq-item--quick .faq-item__marker {
  background: var(--color-green);
  box-shadow: 0 0 0 4px rgba(0, 196, 140, 0.14);
}

.page-faq .faq-item--manual .faq-item__marker {
  background: var(--color-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.14);
}

.page-faq .faq-item--assist .faq-item__marker {
  background: var(--color-gold);
  box-shadow: 0 0 0 4px rgba(230, 178, 26, 0.16);
}

.page-faq .faq-item__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-silver);
}

.page-faq .faq-sector--paper .faq-item__code {
  color: #667085;
}

.page-faq .faq-item__level {
  font-size: 12px;
  padding: 2px 8px;
  border: 1px solid transparent;
}

.page-faq .faq-item--quick .faq-item__level {
  color: var(--color-green);
  border-color: rgba(0, 196, 140, 0.3);
}

.page-faq .faq-item--manual .faq-item__level {
  color: var(--color-orange);
  border-color: rgba(255, 107, 53, 0.32);
}

.page-faq .faq-item--assist .faq-item__level {
  color: var(--color-gold);
  border-color: rgba(230, 178, 26, 0.32);
}

.page-faq .faq-item__title {
  flex: 1 1 100%;
  order: 3;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
}

.page-faq .faq-sector--dark .faq-item__title {
  color: var(--color-paper);
}

.page-faq .faq-sector--paper .faq-item__title {
  color: var(--color-ink);
}

.page-faq .faq-item__answer {
  border-top: 1px dashed var(--faq-line);
  padding: 0 20px 20px;
}

.page-faq .faq-item__answer p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-item__answer ul {
  margin-top: 10px;
  display: grid;
  gap: 4px;
  list-style: none;
}

.page-faq .faq-item__answer li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-item__answer li::before {
  content: "▪";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}

.page-faq .faq-sector--paper .faq-item__answer p,
.page-faq .faq-sector--paper .faq-item__answer li {
  color: #3A4252;
}

.page-faq .faq-item__answer a {
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 178, 26, 0.35);
}

/* ========== Contact ========== */
.page-faq .faq-contact {
  background: var(--color-steel);
  color: var(--color-paper);
  padding: 56px 0 64px;
}

.page-faq .faq-contact .container {
  max-width: var(--site-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-contact__head .section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-gold);
}

.page-faq .faq-contact__head h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--color-paper);
  margin-top: 8px;
}

.page-faq .faq-contact__head .section-sub {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-silver);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}

.page-faq .faq-contact__visual {
  display: grid;
  border: 1px solid var(--faq-line);
  background: rgba(11, 15, 25, 0.3);
  margin: 0;
  overflow: hidden;
}

.page-faq .faq-contact__visual img {
  width: 100%;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  display: block;
}

.page-faq .faq-contact__visual figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  color: var(--color-silver);
  line-height: 1.5;
}

.page-faq .faq-contact__channels {
  display: grid;
  gap: 14px;
  margin-top: 36px;
}

.page-faq .faq-contact__channel {
  border: 1px solid rgba(245, 241, 232, 0.2);
  background: rgba(11, 15, 25, 0.28);
  padding: 20px;
}

.page-faq .faq-contact__channel h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-gold);
}

.page-faq .faq-contact__channel p {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-paper);
  word-break: break-all;
}

.page-faq .faq-contact__channel small {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-silver);
}

/* ========== Media Queries ========== */
@media (min-width: 680px) {
  .page-faq .faq-triage__figure {
    grid-template-columns: minmax(240px, 400px) 1fr;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    padding-top: 36px;
    padding-bottom: 76px;
  }

  .page-faq .faq-hero__v {
    right: 28px;
    top: 46px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 64px;
    align-items: end;
    margin-top: 56px;
  }

  .page-faq .faq-triage__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-faq .faq-triage__step + .faq-triage__step::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 50%;
    width: 28px;
    height: 1px;
    background: rgba(230, 178, 26, 0.45);
    z-index: 2;
  }

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

  .page-faq .faq-sector__grid {
    grid-template-columns: 340px minmax(0, 1fr);
    gap: clamp(40px, 6vw, 80px);
  }

  .page-faq .faq-sector__grid--rev .faq-sector__index {
    order: 2;
  }

  .page-faq .faq-sector__grid--rev .faq-sector__list {
    order: 1;
  }

  .page-faq .faq-item__title {
    flex-basis: auto;
    order: 0;
  }

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