.page-faq {
  --faq-hair: rgba(20, 17, 15, 0.14);
  --faq-hair-light: rgba(246, 241, 231, 0.18);
  --faq-measure: 36rem;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  display: block;
  overflow-x: hidden;
}

.page-faq h1,
.page-faq .faq-h2,
.page-faq .faq-h3,
.page-faq .faq-step__title {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-faq .index-label {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 52px) 0 clamp(38px, 6vw, 76px);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--red) 0 30%, var(--gold) 30% 42%, transparent 42%);
  opacity: 0.9;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  font-size: 13px;
}

.page-faq .breadcrumb__link {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-faq .breadcrumb__sep {
  color: var(--gray);
  opacity: 0.6;
}

.page-faq .breadcrumb__current {
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero__lead h1 {
  font-size: clamp(1.95rem, 6.6vw, 3.5rem);
  line-height: 1.14;
  margin-top: 14px;
  max-width: 20em;
  text-wrap: balance;
}

.page-faq .faq-hero__lead .lede {
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.9;
  color: var(--ink-soft);
  max-width: var(--faq-measure);
  margin: clamp(16px, 2.4vw, 22px) 0 0;
}

.page-faq .faq-hero__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--red);
  border-left: 2px solid var(--gold);
  padding-left: 12px;
  margin: clamp(16px, 2.4vw, 22px) 0 0;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.page-faq .faq-hero__toc {
  border: 1px solid var(--faq-hair);
  border-top: 3px solid var(--red);
  background: var(--paper);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-toc__title {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gray);
  margin: 0 0 14px;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-hair);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

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

.page-faq .faq-toc__list li:last-child .faq-toc__link {
  border-bottom: 0;
}

.page-faq .faq-toc__num {
  font-size: 12px;
  color: var(--gold-deep);
  min-width: 20px;
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding: clamp(44px, 7vw, 92px) 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-section--ink {
  background: var(--ink);
  color: var(--paper);
  border-bottom-color: var(--faq-hair-light);
}

.page-faq .faq-section--ink .index-label {
  color: var(--neon);
}

.page-faq .faq-section--ink .faq-section__desc {
  color: rgba(246, 241, 231, 0.72);
}

.page-faq .faq-section--paper2 {
  background: var(--paper-2);
}

.page-faq .faq-section__head {
  max-width: 44rem;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-faq .faq-h2 {
  font-size: clamp(1.5rem, 4.2vw, 2.5rem);
  line-height: 1.2;
  margin-top: 12px;
}

.page-faq .faq-h3 {
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  line-height: 1.35;
}

.page-faq .faq-section__desc {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 14px 0 0;
}

.page-faq .faq-section__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 42px);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 60px);
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-step__num {
  font-size: 14px;
  color: var(--red);
  padding-top: 5px;
  position: relative;
}

.page-faq .faq-step__num::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gold);
  margin-top: 10px;
}

.page-faq .faq-step__title {
  font-size: clamp(1.1rem, 2.6vw, 1.35rem);
  line-height: 1.3;
}

.page-faq .faq-step__body p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 10px 0 0;
  max-width: var(--faq-measure);
}

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

.page-faq .media__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--faq-hair);
  background: var(--paper-2);
  box-shadow: var(--shadow-card);
}

.page-faq .media__frame--wide {
  border-top: 3px solid var(--red);
}

.page-faq .media__frame--square {
  border-left: 3px solid var(--gold);
}

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

.page-faq .media__badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 11px;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--neon);
  padding: 5px 10px;
  border-radius: var(--radius);
}

.page-faq .media__caption {
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
  margin-top: 12px;
  max-width: var(--faq-measure);
}

/* ---------- 练局模式 ---------- */
.page-faq .practice-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-faq .practice-panel__main p {
  font-size: 15.5px;
  line-height: 1.95;
  color: rgba(246, 241, 231, 0.86);
  margin: 0 0 16px;
  max-width: var(--faq-measure);
}

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

.page-faq .practice-panel__aside .panel__key {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--neon);
  margin: 0 0 12px;
}

.page-faq .practice-panel__aside .panel {
  border: 1px solid var(--faq-hair-light);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius);
  padding: 6px 18px;
  background: rgba(246, 241, 231, 0.04);
}

.page-faq .practice-panel__aside .panel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-hair-light);
}

.page-faq .practice-panel__aside .panel__row:last-child {
  border-bottom: 0;
}

.page-faq .practice-panel__aside .panel__key {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0;
  color: rgba(246, 241, 231, 0.68);
  margin: 0;
}

.page-faq .practice-panel__aside .panel__value {
  font-size: 14px;
  color: var(--gold);
}

/* ---------- 专区图示 ---------- */
.page-faq .guide-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .guide-map__media {
  margin: 0;
}

.page-faq .guide-map__text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 14px 0 0;
  max-width: var(--faq-measure);
}

.page-faq .guide-map__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .guide-map__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-hair);
  font-size: 14px;
  color: var(--ink);
}

.page-faq .guide-map__list .mono {
  font-size: 12px;
  color: var(--paper);
  background: var(--table);
  min-width: 22px;
  text-align: center;
  padding: 3px 0;
  border-radius: var(--radius);
}

/* ---------- 筛选 ---------- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--paper);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .filter-bar__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gray);
  margin-right: 4px;
}

.page-faq .filter-btn {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  padding: 6px 14px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  border-color: var(--red);
  color: var(--red);
}

.page-faq .filter-btn.is-on {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

.page-faq .filter-status {
  font-size: 11px;
  color: var(--gray);
  margin-left: auto;
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  background: var(--paper);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--red);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 12px;
  padding: 18px 18px;
}

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

.page-faq .faq-item__idx {
  font-size: 12px;
  color: var(--gold-deep);
}

.page-faq .faq-item__text {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-item__mark {
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--red);
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.page-faq .faq-item__mark::before {
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 18px 20px 74px;
  border-top: 1px solid var(--faq-hair);
  margin-top: -1px;
  padding-top: 16px;
}

.page-faq .faq-item__a p {
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 0;
  max-width: var(--faq-measure);
}

/* ---------- 版本线 ---------- */
.page-faq .verlog {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  border-left: 1px solid var(--faq-hair);
}

.page-faq .verlog__item {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 38px) clamp(24px, 4vw, 36px);
}

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

.page-faq .verlog__dot {
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--incense);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-faq .verlog__meta {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--gray);
  margin: 0 0 8px;
}

.page-faq .verlog__body p:last-child {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  margin: 10px 0 0;
  max-width: var(--faq-measure);
}

/* ---------- 底部引导 ---------- */
.page-faq .faq-cta {
  padding: clamp(42px, 6vw, 80px) 0;
  background: linear-gradient(120deg, var(--ink) 0%, var(--table) 100%);
  color: var(--paper);
}

.page-faq .faq-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-cta .index-label {
  color: var(--gold);
}

.page-faq .faq-cta__text .faq-h2 {
  margin-top: 10px;
}

.page-faq .faq-cta__text p:last-child {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(246, 241, 231, 0.82);
  margin: 14px 0 0;
  max-width: var(--faq-measure);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(30px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .practice-panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 64px);
  }

  .page-faq .faq-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: end;
  }

  .page-faq .guide-map {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-faq .guide-map__media {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-item > summary {
    grid-template-columns: 34px minmax(0, 1fr) 18px;
    gap: 10px;
    padding: 15px 14px;
  }

  .page-faq .faq-item__a {
    padding: 14px 14px 18px 14px;
  }

  .page-faq .filter-status {
    margin-left: 0;
    width: 100%;
  }

  .page-faq .faq-step {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
  }
}