.page-faq {
  --faq-line: rgba(28, 34, 38, 0.13);
  --faq-line-soft: rgba(28, 34, 38, 0.07);
  --faq-body-text: #41494e;
  background: var(--rice);
  color: var(--ink);
  padding-bottom: 76px;
}

.page-faq .breadcrumb {
  margin-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding: 26px 0 34px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__main h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(32px, 7.4vw, 56px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 10px 0 16px;
  color: var(--ink);
}

.page-faq .faq-hero__main .lede {
  max-width: 48ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-hero__aside {
  padding-top: 4px;
}

.page-faq .faq-hero__aside .note-col {
  margin: 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--stone);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-hero__stats .num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--celadon);
}

.page-faq .faq-hero__stats li span:last-child {
  font-size: 12.5px;
  color: var(--stone);
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 56px;
    align-items: end;
    padding: 38px 0 44px;
  }
  .page-faq .faq-hero__aside {
    border-left: 1px solid var(--faq-line);
    padding-left: 22px;
    padding-top: 0;
  }
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  padding-top: 34px;
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 58px;
    align-items: start;
  }
}

/* ---------- 左侧目录 ---------- */
.page-faq .faq-toc {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}

.page-faq .faq-toc__title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  margin: 0 0 10px;
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid var(--faq-line);
  background: var(--rice-2);
  white-space: nowrap;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-toc__link:hover {
  border-color: var(--celadon);
  color: var(--celadon);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}

@media (min-width: 980px) {
  .page-faq .faq-toc {
    position: sticky;
    top: 104px;
  }
  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }
  .page-faq .faq-toc__list li {
    flex: 1 1 auto;
  }
  .page-faq .faq-toc__link {
    border: 0;
    border-bottom: 1px solid var(--faq-line-soft);
    background: none;
    padding: 11px 0;
    white-space: normal;
  }
  .page-faq .faq-toc__link:hover {
    padding-left: 6px;
    background: none;
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 40px 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-body > .faq-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-sec__head {
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-faq .faq-sec__head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(25px, 4.4vw, 36px);
  line-height: 1.26;
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-faq .faq-sec__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

.page-faq .faq-body a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 111, 99, 0.35);
}

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

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 26px;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 三步定位 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 48px 18px 18px;
  background: #fffdf8;
  border: 1px solid var(--faq-line);
  box-shadow: var(--shadow-1);
}

.page-faq .step__check {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .step__mark {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.18s ease;
}

.page-faq .step__mark:hover {
  border-color: var(--celadon);
}

.page-faq .step__mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: transparent;
  transition: background 0.18s ease;
}

.page-faq .step__check:focus-visible ~ .step__mark {
  outline: 2px solid var(--celadon);
  outline-offset: 2px;
}

.page-faq .step__check:checked ~ .step__mark {
  border-color: var(--celadon);
}

.page-faq .step__check:checked ~ .step__mark::after {
  background: var(--celadon);
}

.page-faq .step__check:checked ~ .step__body h3 {
  color: var(--stone);
  text-decoration: line-through;
  text-decoration-color: rgba(63, 111, 99, 0.5);
  text-decoration-thickness: 1px;
}

.page-faq .step__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--celadon-light);
  background: rgba(168, 196, 188, 0.18);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--celadon);
}

.page-faq .step__body h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  margin: 4px 0 6px;
  color: var(--ink);
  transition: color 0.18s ease;
}

.page-faq .step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

@media (min-width: 860px) {
  .page-faq .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .page-faq .step {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    padding: 20px 44px 20px 20px;
  }
}

/* ---------- 场景筛选 ---------- */
.page-faq .qa-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-faq .qa-filter__btn {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.2;
  padding: 7px 15px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .qa-filter__btn:hover {
  border-color: var(--celadon);
  color: var(--celadon);
}

.page-faq .qa-filter__btn.is-on {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--rice);
}

/* ---------- 问答组 ---------- */
.page-faq .qa-group {
  margin-bottom: 30px;
}

.page-faq .qa-group:last-child {
  margin-bottom: 0;
}

.page-faq .qa-group__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 4px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
  color: var(--ink);
}

.page-faq .qa-list {
  counter-reset: qa;
  display: grid;
  gap: 0;
}

.page-faq .qa-card {
  counter-increment: qa;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .qa-card__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 14px 4px;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s ease;
}

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

.page-faq .qa-card__sum:hover {
  background: rgba(168, 196, 188, 0.13);
}

.page-faq .qa-card__num {
  display: block;
  min-width: 26px;
}

.page-faq .qa-card__num::before {
  content: counter(qa, decimal-leading-zero);
  display: block;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  transition: color 0.18s ease;
}

.page-faq .qa-card__q {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.62;
  color: var(--ink);
}

.page-faq .qa-card__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .qa-card__mark::before,
.page-faq .qa-card__mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
  background: var(--celadon);
}

.page-faq .qa-card__mark::after {
  transform: rotate(90deg);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .qa-card[open] .qa-card__mark::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .qa-card[open] .qa-card__num::before {
  color: var(--cinnabar);
}

.page-faq .qa-card__body {
  padding: 0 4px 16px 40px;
}

.page-faq .qa-card__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--faq-body-text);
}

/* ---------- 收藏与回访 ---------- */
.page-faq .save-grid {
  display: grid;
  gap: 24px;
}

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

.page-faq .save-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line-soft);
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .save-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 2px;
  background: var(--rice);
}

.page-faq .save-item__num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--clay);
  padding-top: 3px;
}

.page-faq .save-item h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 5px;
  color: var(--ink);
}

.page-faq .save-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

@media (min-width: 840px) {
  .page-faq .save-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }
  .page-faq .faq-figure--save {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 排查清单 ---------- */
.page-faq .check-list {
  list-style: none;
  counter-reset: trouble;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .check-list li {
  counter-increment: trouble;
  position: relative;
  padding: 15px 18px 15px 58px;
  border-left: 2px solid var(--clay);
  background: linear-gradient(90deg, rgba(180, 113, 79, 0.07), rgba(246, 242, 234, 0));
}

.page-faq .check-list li::before {
  content: counter(trouble, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--clay);
}

.page-faq .check-list strong {
  display: block;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--ink);
}

.page-faq .check-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

/* ---------- 术语对照 ---------- */
.page-faq .term-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .term {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .term dt {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-green);
}

.page-faq .term dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-body-text);
}

@media (min-width: 720px) {
  .page-faq .term {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }
}

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  display: grid;
  gap: 22px;
  padding: 28px 22px;
  background: linear-gradient(135deg, var(--ink-green) 0%, #22443b 62%, #1f3a34 100%);
  color: var(--rice);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-next__eyebrow {
  color: var(--gold);
}

.page-faq .faq-next h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  line-height: 1.3;
  margin: 8px 0 12px;
  color: var(--rice);
}

.page-faq .faq-next__main p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 242, 234, 0.82);
}

.page-faq .faq-next__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-next__side .btn--primary {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--rice);
  justify-self: start;
}

.page-faq .faq-next__side .btn--primary:hover {
  background: #a83a25;
  border-color: #a83a25;
}

.page-faq .faq-next__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  color: rgba(246, 242, 234, 0.78);
  word-break: break-word;
}

@media (min-width: 780px) {
  .page-faq .faq-next {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
    padding: 36px 34px;
  }
}
</main>