.page-faq {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .breadcrumbs {
  margin-top: clamp(14px, 2vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3.6vw, 48px) 0 clamp(16px, 3vw, 32px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero-lead .display-1 {
  margin: 12px 0 16px;
  max-width: 20ch;
}

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

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-chips a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  background: rgba(22, 34, 74, 0.65);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-chips a .mono {
  color: var(--cyan);
  font-size: 12px;
}

.page-faq .faq-chips a:hover,
.page-faq .faq-chips a:focus-visible {
  border-color: var(--lime-line);
  background: var(--lime-soft);
  color: var(--lime);
}

.page-faq .faq-hero-panel {
  padding: clamp(18px, 2.4vw, 26px);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-lg);
}

.page-faq .hero-stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .hero-stat:first-child {
  padding-top: 0;
}

.page-faq .hero-stat-num {
  flex: 0 0 auto;
  min-width: 4.6em;
  color: var(--lime);
  font-size: clamp(20px, 2.4vw, 24px);
  letter-spacing: -0.02em;
}

.page-faq .hero-stat-label {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .hero-stat-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 左索引 + 右答案 ---------- */
.page-faq .qa-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(16px, 3vw, 32px);
}

.page-faq .qa-rail {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

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

.page-faq .qa-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  max-width: 100%;
  padding-bottom: 4px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-faq .qa-index li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-faq .qa-index a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .qa-index a .mono {
  color: var(--cyan);
  font-size: 12px;
}

.page-faq .qa-index a:hover,
.page-faq .qa-index a:focus-visible {
  color: var(--lime);
  border-color: var(--lime-line);
  background: var(--lime-soft);
}

.page-faq .rail-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-section .section-head .display-3 {
  margin: 10px 0 12px;
  max-width: 24ch;
}

.page-faq .faq-section .section-head .lede {
  max-width: 64ch;
  color: var(--muted);
}

/* ---------- 三步流程 ---------- */
.page-faq .steps {
  position: relative;
  margin-top: 24px;
  padding-left: 46px;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), var(--cyan) 55%, rgba(57, 230, 208, 0));
}

.page-faq .step {
  position: relative;
  padding-bottom: 22px;
}

.page-faq .step:last-child {
  padding-bottom: 0;
}

.page-faq .step-no {
  position: absolute;
  left: -46px;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-2);
  border: 1px solid var(--lime-line);
  color: var(--lime);
  font-size: 12px;
}

.page-faq .step h3 {
  margin: 5px 0 6px;
  font-size: 17px;
  font-weight: 500;
  color: var(--paper);
}

.page-faq .step p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .step p a {
  color: var(--cyan);
}

/* ---------- 图文网格 ---------- */
.page-faq .newbie-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  margin-top: 8px;
}

.page-faq .qa-figure {
  margin: 0;
  overflow: hidden;
}

.page-faq .qa-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-faq .qa-figure .media-caption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 排序卡 ---------- */
.page-faq .sort-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .sort-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .sort-card .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .sort-card h3 {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 500;
}

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

/* ---------- 旧版本资料板块 ---------- */
.page-faq .archive-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  margin-top: 8px;
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--ink-2), var(--ink) 78%);
}

.page-faq .archive-board .steps {
  margin-top: 0;
  padding-left: 46px;
}

/* ---------- 评测指标 ---------- */
.page-faq .metric-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--card);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: var(--lime-line);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  color: var(--paper);
  font-size: 15.5px;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
}

.page-faq .faq-item[open] .faq-q::after {
  content: "−";
}

.page-faq .faq-q:hover {
  background: var(--lime-soft);
}

.page-faq .faq-a {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}

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

/* ---------- 数据条 ---------- */
.page-faq .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.page-faq .stat-strip > div {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--card);
}

.page-faq .stat-strip b {
  display: block;
  margin-bottom: 6px;
  color: var(--lime);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.page-faq .stat-strip span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- 底部联系 ---------- */
.page-faq .faq-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(22px, 3.4vw, 36px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(198, 255, 61, 0.13), rgba(57, 230, 208, 0.07) 58%, rgba(10, 17, 40, 0) 100%);
}

.page-faq .faq-cta .display-3 {
  margin: 0 0 12px;
}

.page-faq .faq-cta p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

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

/* ---------- 桌面布局 ---------- */
@media (min-width: 640px) {
  .page-faq .sort-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .stat-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-faq .newbie-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .archive-board {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-faq .qa-figure--tall img {
    max-height: 340px;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

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

@media (min-width: 960px) {
  .page-faq .qa-layout {
    grid-template-columns: minmax(200px, 236px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .qa-rail {
    position: sticky;
    top: 104px;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 2px 0 2px 16px;
  }

  .page-faq .qa-index {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .qa-index a {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 9px 12px;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .qa-index a:hover,
  .page-faq .qa-index a:focus-visible {
    border-left-color: var(--lime);
  }
}