.page-faq {
  --faq-paper-ink: #14201C;
  --faq-paper-text: #3A4842;
  --faq-paper-accent: #44651C;
  --faq-top-h: 92px;
  position: relative;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 边缘刻度 ---------- */
.page-faq .faq-rail {
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--rule) 0 1px,
    transparent 1px 14px
  );
  opacity: 0.6;
}

@media (min-width: 1280px) {
  .page-faq .faq-rail {
    display: block;
  }
  .page-faq .faq-rail--left {
    left: 8px;
  }
  .page-faq .faq-rail--right {
    right: 8px;
  }
}

/* ---------- 首屏 ---------- */
.page-faq .faq-top {
  position: relative;
  padding: clamp(18px, 3vw, 30px) 0 clamp(30px, 5vw, 62px);
  background:
    radial-gradient(115% 90% at 82% -10%, var(--ink-3) 0%, transparent 62%),
    linear-gradient(168deg, var(--ink-2) 0%, var(--ink) 68%);
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__title {
  margin: 12px 0 16px;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  max-width: 40ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-hero__jump {
  position: relative;
  padding: clamp(18px, 3vw, 26px);
  background: rgba(16, 19, 20, 0.85);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.page-faq .faq-hero__jump::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--lime);
}

.page-faq .faq-hero__jump-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.page-faq .faq-jump li + li {
  border-top: 1px solid var(--rule-soft);
}

.page-faq .faq-jump a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  text-decoration: none;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--lime);
  flex: none;
}

.page-faq .faq-jump__label {
  font-weight: 700;
  font-size: 15px;
}

.page-faq .faq-jump__meta {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

@media (max-width: 460px) {
  .page-faq .faq-jump__meta {
    display: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  padding-top: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(48px, 7vw, 92px);
  position: relative;
  z-index: 1;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  padding-top: 14px;
  border-top: 2px solid var(--lime);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--text);
  background: var(--ink-2);
}

.page-faq .faq-toc__link[aria-current="true"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
  background: var(--ink-3);
}

.page-faq .faq-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  opacity: 0.75;
}

@media (min-width: 960px) {
  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
  }
  .page-faq .faq-toc__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-toc__link {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }
  .page-faq .faq-toc__link[aria-current="true"] {
    border-left-color: var(--lime);
    border-bottom-color: transparent;
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-bottom: clamp(34px, 5vw, 58px);
  margin-bottom: clamp(34px, 5vw, 58px);
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 104px;
}

.page-faq .faq-section:last-of-type {
  border-bottom: 0;
  margin-bottom: 0;
}

.page-faq .faq-section__head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-section__title {
  margin: 8px 0 12px;
  color: var(--paper);
}

.page-faq .faq-section__lede {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-section__lede a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 17px;
  margin-bottom: 10px;
  border-radius: var(--radius-sm);
  background: var(--paper);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateX(3px);
}

.page-faq .faq-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .faq-step__title {
  margin: 2px 0 5px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--faq-paper-ink);
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--faq-paper-text);
}

.page-faq .faq-step__body a {
  color: var(--faq-paper-accent);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分栏 + 图片 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 34px);
}

@media (min-width: 800px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 230px;
    align-items: start;
  }
}

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

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

.page-faq .faq-figure--full img {
  aspect-ratio: 1300 / 800;
}

.page-faq .faq-figure .bw-figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .faq-figure--full {
  margin: clamp(20px, 3vw, 30px) 0;
}

/* ---------- 面板读法卡片 ---------- */
.page-faq .faq-read {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

@media (min-width: 720px) {
  .page-faq .faq-read {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-read__card {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--ink-2);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-read__card:hover {
  border-color: var(--rule-soft);
  background: var(--ink-3);
}

.page-faq .faq-read__tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-faq .faq-read__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

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

/* ---------- 提示条 ---------- */
.page-faq .faq-note {
  padding: 16px 18px;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--ink-2);
}

.page-faq .faq-note--assist {
  margin-top: clamp(20px, 3vw, 28px);
  border-left-color: var(--lime);
}

.page-faq .faq-note__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-note--assist .faq-note__title {
  color: var(--lime);
}

.page-faq .faq-note p + p {
  margin-top: 0;
}

.page-faq .faq-note p:last-child {
  margin-bottom: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-note a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 计分入口 ---------- */
.page-faq .faq-entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 28px);
}

@media (min-width: 700px) {
  .page-faq .faq-entries {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-entry {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 3px;
  padding: 15px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--ink-2);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .faq-entry:hover,
.page-faq .faq-entry:focus-visible {
  border-color: var(--lime);
  background: var(--ink-3);
}

.page-faq .faq-entry__num {
  grid-row: span 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-faq .faq-entry__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-entry__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 折算关系 ---------- */
.page-faq .faq-score {
  padding: clamp(18px, 3vw, 28px);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--faq-paper-ink);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-score::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to right,
    rgba(20, 32, 28, 0.07) 0 1px,
    transparent 1px 40px
  );
}

.page-faq .faq-score__head {
  position: relative;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faq-paper-accent);
}

.page-faq .faq-score__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-score__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid rgba(20, 32, 28, 0.14);
}

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

.page-faq .faq-score__key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--faq-paper-accent);
}

.page-faq .faq-score__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-paper-text);
}

@media (min-width: 700px) {
  .page-faq .faq-score__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-top: 10px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--ink-2);
  overflow: hidden;
}

.page-faq .faq-item__summary {
  position: relative;
  display: block;
  padding: 14px 18px 14px 46px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.page-faq .faq-item__summary::before {
  content: "+";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-item[open] .faq-item__summary::before {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-item__summary:hover {
  color: var(--paper);
  background: var(--ink-3);
}

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

.page-faq .faq-item__body {
  padding: 14px 18px 18px 46px;
  border-top: 1px solid var(--rule-soft);
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

@media (max-width: 480px) {
  .page-faq .faq-item__summary,
  .page-faq .faq-item__body {
    padding-left: 40px;
    padding-right: 14px;
  }
  .page-faq .faq-item__summary::before {
    left: 14px;
  }
}

/* ---------- 收尾入口 ---------- */
.page-faq .faq-next {
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: clamp(26px, 4vw, 42px);
  border-top: 2px solid var(--rule);
}

.page-faq .faq-next__title {
  margin: 0 0 18px;
  color: var(--paper);
}

.page-faq .faq-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 620px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--ink-2);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  border-color: var(--lime);
  transform: translateY(-2px);
}

.page-faq .faq-next__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-next__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-entry,
  .page-faq .faq-next__card,
  .page-faq .faq-item__summary::before {
    transition: none;
  }
  .page-faq .faq-step:hover,
  .page-faq .faq-next__card:hover {
    transform: none;
  }
}