.page-faq {
  --faq-toc-w: 232px;
  --faq-panel: var(--white);
  background: var(--paper-warm);
  color: var(--ink-text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.75rem, 5vw, 4rem) 0 clamp(1.75rem, 4vw, 3rem);
  border-bottom: 2px solid var(--ink-green);
  background:
    radial-gradient(circle at 86% 8%, rgba(255, 106, 26, 0.16), transparent 44%),
    repeating-linear-gradient(90deg, rgba(11, 42, 30, 0.05) 0 1px, transparent 1px 56px),
    linear-gradient(180deg, var(--paper-warm) 0%, var(--paper-2) 100%);
  overflow: hidden;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: 2rem;
  align-items: start;
  grid-template-columns: 1fr;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-serif);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.14;
  font-size: clamp(1.9rem, 6.2vw, 3.6rem);
  margin: 0.75rem 0 0;
  color: var(--ink-green);
  max-width: 20ch;
}

.page-faq .faq-hero__intro {
  margin: 1.1rem 0 0;
  max-width: 44ch;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__quick {
  background: var(--faq-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 1.15rem 1.15rem 1.25rem;
  box-shadow: 6px 6px 0 var(--paper-2), 6px 6px 0 1px var(--line);
}

.page-faq .faq-hero__quick-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-orange);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-faq .faq-quick a {
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.6rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--ink-text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease, color 0.2s ease;
}

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

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  background: var(--orange-soft);
}

.page-faq .faq-quick .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pitch-green);
  font-size: 0.9rem;
}

.page-faq .faq-hero__quick-note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--line);
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  padding-top: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-board__toc {
  order: -1;
}

.page-faq .faq-board__toc-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green-mid);
}

.page-faq .faq-toc {
  list-style: none;
  margin: 0;
  padding: 0 0 0.35rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-toc a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--faq-panel);
  color: var(--ink-text);
  text-decoration: none;
  font-size: 0.875rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  border-color: var(--signal-orange);
  background: var(--orange-soft);
}

.page-faq .faq-toc .mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--signal-orange);
}

/* ---------- 问题组 ---------- */
.page-faq .faq-group {
  padding-top: 1.75rem;
  margin-bottom: 2.5rem;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem 1rem;
  align-items: start;
  margin-bottom: 1.15rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(2.1rem, 6vw, 3.2rem);
  line-height: 0.85;
  color: var(--green-mid);
  opacity: 0.38;
}

.page-faq .faq-group__meta h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  line-height: 1.3;
  color: var(--ink-green);
}

.page-faq .faq-group__meta p {
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 40ch;
}

/* ---------- 问答条目 ---------- */
.page-faq .accordion__item {
  background: var(--faq-panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green-mid);
  border-radius: var(--radius-sm);
  margin-bottom: 0.7rem;
  box-shadow: 0 3px 0 -1px var(--paper-2);
  overflow: hidden;
}

.page-faq .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1.05rem;
  background: none;
  border: 0;
  font: inherit;
  text-align: left;
  cursor: pointer;
  color: var(--ink-text);
  transition: background 0.2s ease;
}

.page-faq .accordion__trigger:hover {
  background: var(--paper-warm);
}

.page-faq .accordion__trigger[aria-expanded="true"] {
  background: var(--orange-soft);
}

.page-faq .faq-q {
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.55;
}

.page-faq .faq-q__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 0.25rem;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--signal-orange);
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

.page-faq .faq-q__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .accordion__trigger[aria-expanded="true"] .faq-q__mark::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-faq .accordion__panel {
  padding: 0.25rem 1.05rem 1.1rem;
  border-top: 1px dashed var(--line);
}

.page-faq .accordion__panel p {
  margin: 0.7rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-text);
  max-width: 40ch;
}

.page-faq .accordion__panel a {
  color: var(--pitch-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 步骤编号 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-steps .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--signal-orange);
  letter-spacing: 0.04em;
}

/* ---------- 图片与线框 ---------- */
.page-faq .faq-figure-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
  align-items: start;
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
}

.page-faq .faq-figure--tall {
  max-width: 300px;
}

.page-faq .faq-figure--wide {
  margin-top: 1.25rem;
}

.page-faq .faq-wire {
  margin: 0;
  justify-self: start;
}

.page-faq .faq-wire__screen {
  width: 128px;
  height: 208px;
  border: 2px solid var(--ink-green);
  border-radius: 16px;
  background: var(--white);
  padding: 0.55rem 0.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-faq .faq-wire__row {
  display: block;
  height: 9px;
  border-radius: 3px;
  background: var(--paper-2);
}

.page-faq .faq-wire__row--a {
  width: 68%;
}

.page-faq .faq-wire__bar {
  margin-top: auto;
  display: flex;
  gap: 0.28rem;
  padding-bottom: 0.5rem;
}

.page-faq .faq-wire__bar span {
  flex: 1;
  height: 14px;
  border-radius: 3px;
  background: var(--paper-2);
}

.page-faq .faq-wire__bar .is-live {
  background: var(--signal-orange);
}

.page-faq .faq-wire__cap {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--ink-soft);
  max-width: 128px;
}

/* ---------- 深色排障区 ---------- */
.page-faq .faq-group--dark {
  background: var(--ink-green);
  border-top: 0;
  border-radius: var(--radius);
  padding: 1.5rem 1.15rem 1.4rem;
  margin-top: 0.5rem;
  color: var(--on-dark);
}

.page-faq .faq-group--dark .faq-group__num {
  color: var(--card-yellow);
  opacity: 0.75;
}

.page-faq .faq-group--dark .faq-group__meta h2 {
  color: var(--paper-warm);
}

.page-faq .faq-group--dark .faq-group__meta p {
  color: var(--on-dark-soft);
}

.page-faq .faq-group--dark .accordion__item {
  background: var(--pitch-green);
  border-color: rgba(245, 239, 227, 0.18);
  border-left-color: var(--signal-orange);
  box-shadow: 0 3px 0 -1px rgba(0, 0, 0, 0.24);
}

.page-faq .faq-group--dark .accordion__trigger {
  color: var(--paper-warm);
}

.page-faq .faq-group--dark .accordion__trigger:hover {
  background: rgba(245, 239, 227, 0.08);
}

.page-faq .faq-group--dark .accordion__trigger[aria-expanded="true"] {
  background: var(--orange-soft);
  color: var(--ink-text);
}

.page-faq .faq-group--dark .accordion__panel {
  border-top-color: rgba(245, 239, 227, 0.2);
}

.page-faq .faq-group--dark .accordion__panel p,
.page-faq .faq-group--dark .faq-steps li {
  color: var(--on-dark);
}

/* ---------- 自查清单与联系 ---------- */
.page-faq .faq-checklist {
  background: var(--faq-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.05rem 1.1rem 1.15rem;
}

.page-faq .faq-checklist__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-orange);
}

.page-faq .faq-check {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 1.85rem;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.32rem;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--ink-green);
  border-radius: 3px;
  background: var(--paper-warm);
}

.page-faq .faq-contact-block {
  margin-top: 1.15rem;
  padding: 1.1rem 1.1rem 1.15rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--paper-2);
}

.page-faq .faq-contact-block__lead {
  margin: 0 0 0.9rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  max-width: 44ch;
}

.page-faq .faq-contact-block__note {
  margin: 0.85rem 0 0;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.page-faq .faq-contact-block .copy-row {
  margin-top: 0.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

/* ---------- 底部行动区 ---------- */
.page-faq .faq-cta {
  background: var(--blue-deep);
  color: var(--on-dark);
  padding: clamp(1.75rem, 4vw, 2.75rem) 0;
}

.page-faq .faq-cta__inner {
  display: grid;
  gap: 1.25rem;
  align-items: center;
  grid-template-columns: 1fr;
}

.page-faq .faq-cta h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  color: var(--white);
}

.page-faq .faq-cta p {
  margin: 0.6rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--on-dark-soft);
  max-width: 46ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-figure-row {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.75rem;
  }

  .page-faq .faq-group--dark {
    padding: 2rem 1.75rem 1.85rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 3rem;
  }

  .page-faq .faq-board {
    grid-template-columns: var(--faq-toc-w) minmax(0, 1fr);
    gap: 3.5rem;
  }

  .page-faq .faq-board__toc {
    position: sticky;
    top: 1.5rem;
    align-self: start;
  }

  .page-faq .faq-toc {
    flex-direction: column;
    overflow: visible;
    gap: 0.15rem;
  }

  .page-faq .faq-toc a {
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 0.55rem 0.75rem;
    background: none;
    white-space: normal;
  }

  .page-faq .faq-toc a:hover,
  .page-faq .faq-toc a:focus-visible {
    border-left-color: var(--signal-orange);
    background: var(--paper-2);
  }

  .page-faq .faq-group__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.25rem;
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick a,
  .page-faq .faq-toc a,
  .page-faq .accordion__trigger,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after {
    transition: none;
  }
}