.page-faq {
  --faq-rail: 232px;
  --faq-soft: #3E5A4C;
  background: var(--pitch);
  color: var(--paper);
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  padding-bottom: 88px;
  overflow-x: hidden;
}

.page-faq .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: 18px;
  padding: 48px 0 56px;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(30, 85, 64, 0.45) 79px 80px),
    repeating-linear-gradient(0deg, transparent 0 79px, rgba(30, 85, 64, 0.28) 79px 80px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--mute);
}

.page-faq .faq-hero__eyebrow .num {
  color: var(--volt);
  font-weight: 600;
}

.page-faq .faq-hero__tick {
  width: 40px;
  height: 1px;
  background: var(--volt);
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 15em;
  font-size: var(--fs-h1);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__hi {
  display: block;
  font-style: normal;
  color: var(--volt);
}

.page-faq .faq-hero__lede {
  max-width: 34em;
  margin: 24px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 32px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  font-size: 13px;
  color: var(--mute);
}

.page-faq .faq-hero__fact .num {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--volt);
  line-height: 1.2;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 56px;
}

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

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mute);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 9px 0 9px 14px;
  border-left: 2px solid transparent;
  font-size: 14.5px;
  color: var(--mute);
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-rail__link .num {
  font-size: 12px;
  color: var(--line);
  transition: color 200ms var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--glow);
  border-left-color: var(--volt);
  outline: none;
}

.page-faq .faq-rail__link:hover .num,
.page-faq .faq-rail__link:focus-visible .num {
  color: var(--volt);
}

.page-faq .faq-rail__tip {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  margin-bottom: 64px;
}

.page-faq .block-num {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .block-num__digit {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--volt);
}

.page-faq .block-num__label {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--mute);
}

.page-faq .faq-sec h2 {
  margin: 10px 0 12px;
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-sec__lede {
  max-width: 34em;
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 三步路径 ---------- */
.page-faq .path {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-faq .path__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .path__step {
  position: relative;
  padding: 0 0 28px 52px;
  margin-left: 15px;
  border-left: 1px solid var(--line);
}

.page-faq .path__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .path__num {
  position: absolute;
  left: -15px;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--volt);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
}

.page-faq .path__title {
  margin: 2px 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

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

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

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

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mute);
}

/* ---------- 注释条 ---------- */
.page-faq .note {
  margin: 28px 0 0;
  padding: 12px 0 12px 14px;
  border-left: 2px solid var(--volt);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--glow);
  background: linear-gradient(90deg, rgba(200, 255, 61, 0.07), transparent 70%);
}

.page-faq .faq-note {
  margin: 26px 0 0;
  padding: 10px 0 10px 14px;
  border-left: 2px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .faq-note + .qa-group__title {
  margin-top: 30px;
}

.page-faq .faq-link {
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid var(--volt);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--volt);
}

/* ---------- 问答 ---------- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.page-faq .chip {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mute);
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.4;
  padding: 8px 14px;
  cursor: pointer;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .chip:hover {
  color: var(--glow);
  border-color: var(--line);
}

.page-faq .chip[aria-pressed="true"] {
  color: var(--ink);
  background: var(--volt);
  border-color: var(--volt);
  font-weight: 600;
}

.page-faq .chip:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--glow);
}

.page-faq .qa-group__title::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--volt);
  flex: none;
}

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

.page-faq .qa[hidden] {
  display: none;
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 180ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--volt);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__q:hover {
  color: var(--volt);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-faq .qa__num {
  flex: none;
  font-size: 12.5px;
  color: var(--volt);
  letter-spacing: 0.04em;
}

.page-faq .qa__a {
  padding: 0 0 18px 40px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 奶油纸白区块 ---------- */
.page-faq .faq-sec--paper {
  background: var(--cream);
  color: var(--ink);
  padding: 32px 20px 36px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec--paper .block-num__digit {
  color: var(--ink);
}

.page-faq .faq-sec--paper .block-num__label {
  color: var(--faq-soft);
}

.page-faq .faq-sec--paper h2 {
  color: var(--ink);
}

.page-faq .faq-sec--paper .faq-sec__lede {
  color: var(--faq-soft);
}

.page-faq .faq-sec--paper .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .paper__h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .paper__h3:not(:first-child) {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid rgba(7, 18, 14, 0.16);
}

.page-faq .paper__p {
  margin: 0;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-sec--paper .media img {
  border-color: rgba(7, 18, 14, 0.24);
  background: var(--card);
}

.page-faq .faq-sec--paper .media__caption {
  color: var(--faq-soft);
}

/* ---------- 自查清单 ---------- */
.page-faq .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .checklist__item {
  border-bottom: 1px solid var(--line);
}

.page-faq .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
}

.page-faq .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 1px solid var(--line);
  background: var(--card);
  cursor: pointer;
  position: relative;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .checklist__box:checked {
  background: var(--volt);
  border-color: var(--volt);
}

.page-faq .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 1px;
  width: 6px;
  height: 13px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-faq .checklist__box:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-faq .checklist__num {
  flex: none;
  font-size: 12.5px;
  color: var(--volt);
  line-height: 1.9;
}

.page-faq .checklist__body {
  display: block;
}

.page-faq .checklist__title {
  display: block;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .checklist__text {
  display: block;
  margin-top: 4px;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 反馈材料 ---------- */
.page-faq .mats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .mats__item {
  background: var(--card);
  padding: 22px 20px 24px;
  position: relative;
}

.page-faq .mats__item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: linear-gradient(225deg, var(--pitch) 0 50%, transparent 50%);
}

.page-faq .mats__num {
  display: block;
  font-size: 12px;
  color: var(--volt);
  margin-bottom: 10px;
}

.page-faq .mats__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

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

/* ---------- 收尾 ---------- */
.page-faq .faq-end {
  border: 1px solid var(--line);
  border-left: 3px solid var(--volt);
  background: var(--card);
  padding: 28px 22px 30px;
}

.page-faq .faq-end__text {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper);
}

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

.page-faq .faq-end .btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
  transition: color 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-end .btn--volt {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
}

.page-faq .faq-end .btn:hover {
  border-color: var(--volt);
  color: var(--volt);
}

.page-faq .faq-end .btn--volt:hover {
  background: var(--glow);
  border-color: var(--glow);
  color: var(--ink);
}

.page-faq .faq-end .btn:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-hero {
    padding: 64px 0 72px;
  }

  .page-faq .faq-sec--paper {
    padding: 40px 32px 44px;
  }

  .page-faq .mats {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-end {
    padding: 34px 32px 36px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 56px;
    padding-top: 64px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    border-top: none;
    padding-top: 4px;
  }

  .page-faq .path {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-sec--paper .split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .mats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .qa__q {
    font-size: 17px;
  }
}

@media (min-width: 1140px) {
  .page-faq .faq-hero h1 {
    max-width: 13em;
  }

  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-sec {
    margin-bottom: 80px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}