.page-faq {
  --faq-gap: clamp(20px, 4vw, 48px);
  background: var(--ink);
  color: var(--white);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 封面 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(32px, 6vw, 68px);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(123, 77, 255, 0.36), transparent 62%),
    radial-gradient(90% 80% at 96% 18%, rgba(46, 230, 214, 0.16), transparent 64%),
    linear-gradient(180deg, var(--ink-deep), var(--ink) 78%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(46, 230, 214, 0.05) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
  opacity: 0.7;
}

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

.page-faq .breadcrumb ol {
  margin: 0 0 clamp(18px, 3vw, 32px);
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .faq-hero-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 7.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.page-faq .faq-hero-lead {
  max-width: 62ch;
  margin: 0 0 clamp(24px, 4vw, 40px);
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
}

.page-faq .faq-index {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-faq .faq-index-link {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: rgba(21, 27, 61, 0.82);
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.22s ease, transform 0.22s ease, background 0.22s ease;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-color: var(--violet);
  border-left-color: var(--violet);
  background: rgba(27, 35, 80, 0.95);
  transform: translateY(-2px);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-index-q {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-index-hint {
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 双栏手册骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(24px, 4vw, 48px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-faq .faq-rail {
  position: sticky;
  top: calc(var(--header-h) + 8px);
  z-index: 6;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-rail-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-rail-list {
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail-list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
}

.page-faq .faq-rail-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

/* ---------- 步骤章节 ---------- */
.page-faq .faq-body {
  min-width: 0;
}

.page-faq .faq-step {
  padding: clamp(22px, 3.4vw, 38px) 0;
  border-top: 1px dashed var(--line);
  scroll-margin-top: calc(var(--header-h) + 96px);
}

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

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

.page-faq .faq-step .section-title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(23px, 3.8vw, 40px);
  line-height: 1.16;
  color: var(--white);
}

.page-faq .faq-step-lead {
  margin: 0 0 20px;
  max-width: 64ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

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

.page-faq .faq-steps li {
  position: relative;
  padding: 16px 18px 16px 62px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-steps b {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-status {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 3px solid var(--ok);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(46, 230, 214, 0.07);
}

.page-faq .faq-status-mark {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(85, 217, 138, 0.18);
  color: var(--ok);
  font-size: 12px;
}

.page-faq .faq-status p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, 0.4);
}

.page-faq .faq-note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-faq .faq-figcaption {
  margin: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

/* ---------- 三步入驻 ---------- */
.page-faq .faq-trio {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .trio-card {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
}

.page-faq .trio-card:nth-child(1) {
  background: linear-gradient(158deg, rgba(6, 59, 67, 0.92), var(--panel) 72%);
}

.page-faq .trio-card:nth-child(2) {
  background: linear-gradient(158deg, rgba(123, 77, 255, 0.24), var(--panel) 72%);
}

.page-faq .trio-card:nth-child(3) {
  background: linear-gradient(158deg, rgba(58, 16, 40, 0.92), var(--panel) 72%);
}

.page-faq .trio-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .trio-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

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

.page-faq .faq-task {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(21, 27, 61, 0.7);
}

.page-faq .faq-task-title {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--muted);
}

.page-faq .faq-task-title strong {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-faq .task-meter {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .task-meter span {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1px solid rgba(46, 230, 214, 0.45);
  background: rgba(46, 230, 214, 0.14);
}

.page-faq .task-meter span:nth-child(4n) {
  border-color: rgba(123, 77, 255, 0.6);
  background: rgba(123, 77, 255, 0.24);
}

/* ---------- 查询标签 ---------- */
.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

/* ---------- 记录与结算 ---------- */
.page-faq .faq-two {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .faq-block {
  padding: 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

.page-faq .faq-block h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
}

.page-faq .faq-block p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .field-chips {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .field-chips li {
  padding: 6px 12px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--gold);
  background: rgba(242, 184, 75, 0.07);
}

/* ---------- 导出格式 ---------- */
.page-faq .faq-format {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
  margin-top: 18px;
}

.page-faq .format-card {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, rgba(58, 16, 40, 0.78), var(--panel) 78%);
}

.page-faq .format-ext {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-faq .format-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-q {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-list .expand-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 15px 16px;
  border: 0;
  background: transparent;
  color: var(--white);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-list .expand-trigger:hover {
  background: rgba(123, 77, 255, 0.14);
}

.page-faq .faq-list .expand-trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-list .expand-trigger[aria-expanded="true"] {
  color: var(--cyan);
}

.page-faq .expand-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.page-faq .expand-icon::before,
.page-faq .expand-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.page-faq .expand-icon::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .expand-icon::after {
  width: 1.5px;
  height: 8px;
}

.page-faq .faq-list .expand-trigger[aria-expanded="true"] .expand-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-list .expand-panel {
  border-top: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .expand-body {
  padding: 14px 16px 16px;
}

.page-faq .expand-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .expand-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, 0.4);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid rgba(123, 77, 255, 0.45);
  border-radius: var(--radius);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(46, 230, 214, 0.16), transparent 60%),
    linear-gradient(140deg, rgba(123, 77, 255, 0.3), rgba(21, 27, 61, 0.94));
  scroll-margin-top: calc(var(--header-h) + 96px);
}

.page-faq .faq-cta-title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-cta-note {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

  .page-faq .faq-trio,
  .page-faq .faq-format,
  .page-faq .faq-two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-shell {
    grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-rail {
    top: calc(var(--header-h) + 24px);
    padding: 16px 14px;
    border-radius: var(--radius);
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    overflow: visible;
  }

  .page-faq .faq-rail-list a {
    border-radius: var(--radius-sm);
    border-color: transparent;
    border-left: 2px solid var(--line);
    padding: 9px 12px;
    font-size: 13.5px;
  }

  .page-faq .faq-rail-list a:hover,
  .page-faq .faq-rail-list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(46, 230, 214, 0.07);
  }

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

  .page-faq .trio-card:nth-child(2) {
    transform: translateY(10px);
  }

  .page-faq .faq-steps--tight li {
    padding-right: 24px;
  }

  .page-faq .faq-figure {
    margin-top: 28px;
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-index-link {
    padding: 16px 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-list .expand-trigger,
  .page-faq .expand-icon::before,
  .page-faq .expand-icon::after {
    transition: none;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible,
  .page-faq .trio-card:nth-child(2) {
    transform: none;
  }
}