.page-faq {
  --faq-line: 1px solid var(--yh-rule);
  --faq-soft: rgba(244, 235, 216, .76);
  --faq-faint: rgba(244, 235, 216, .55);
  background: var(--yh-ink);
  color: var(--yh-paper);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-main {
  min-width: 0;
}

/* ---------- 章节导航 ---------- */
.page-faq .faq-rail {
  display: none;
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
  }
  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--yh-hh) + 24px);
    padding-top: 6px;
  }
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: var(--faq-line);
  font-family: var(--yh-font-editorial);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--yh-mist);
}

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

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px 8px 8px;
  border-left: 2px solid transparent;
  color: var(--yh-mist);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.4;
  transition: color .18s var(--yh-ease), background .18s var(--yh-ease), border-color .18s var(--yh-ease);
}

.page-faq .faq-rail__link span {
  font-family: var(--yh-font-num);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--yh-gold);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--yh-paper);
  background: rgba(127, 200, 212, .07);
}

.page-faq .faq-rail__link[aria-current="true"] {
  color: var(--yh-paper);
  border-left-color: var(--yh-gold);
  background: rgba(217, 164, 65, .09);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(8px, 2vw, 18px) 0 clamp(28px, 5vw, 52px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -12%;
  width: 52%;
  height: 190%;
  transform: skewX(-6deg);
  background: linear-gradient(160deg, rgba(217, 164, 65, .20), rgba(226, 118, 47, .07) 52%, transparent 74%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(220px, 40%);
  height: 2px;
  background: linear-gradient(90deg, var(--yh-gold), var(--yh-orange) 60%, transparent);
}

.page-faq .faq-hero > * {
  position: relative;
}

.page-faq .faq-hero__title {
  margin: 16px 0 0;
  max-width: 15em;
  font-family: var(--yh-font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.2vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--yh-paper);
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.78;
  color: var(--faq-soft);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--yh-rule);
  border-radius: 2px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--yh-mist);
}

.page-faq .faq-hero__facts .yh-num {
  font-size: 17px;
  color: var(--yh-gold);
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-section {
  border-top: var(--faq-line);
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(32px, 5vw, 64px);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-section__head .yh-h2 {
  margin: 12px 0 0;
  font-family: var(--yh-font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--yh-paper);
}

.page-faq .faq-section__intro {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

/* ---------- 目录表 ---------- */
.page-faq .faq-catalog {
  display: grid;
  gap: 24px;
}

@media (min-width: 960px) {
  .page-faq .faq-catalog {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 36px;
    align-items: start;
  }
}

.page-faq .faq-catalog__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--faq-line);
}

.page-faq .faq-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-areas:
    "num body"
    ". meta";
  gap: 4px 12px;
  padding: 11px 8px;
  border-top: var(--faq-line);
  text-decoration: none;
  color: inherit;
  transition: background .18s var(--yh-ease);
}

@media (min-width: 720px) {
  .page-faq .faq-row {
    grid-template-columns: 54px minmax(0, 1fr) auto;
    grid-template-areas: "num .page-faq meta";
    align-items: center;
    gap: 16px;
    padding: 10px 12px;
  }
}

.page-faq .faq-row:hover,
.page-faq .faq-row:focus-visible {
  background: rgba(127, 200, 212, .07);
}

.page-faq .faq-row__num {
  grid-area: num;
  font-family: var(--yh-font-num);
  font-size: 21px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--yh-gold);
  transition: color .18s var(--yh-ease);
}

.page-faq .faq-row:hover .faq-row__num,
.page-faq .faq-row:focus-visible .faq-row__num {
  color: var(--yh-orange);
}

.page-faq .faq-row__body {
  grid-area: body;
  display: grid;
  gap: 2px;
  min-width: 0;
}

.page-faq .faq-row__name {
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--yh-paper);
}

.page-faq .faq-row__scope {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--yh-mist);
}

.page-faq .faq-row__meta {
  grid-area: meta;
  display: grid;
  gap: 2px;
  font-family: var(--yh-font-num);
  font-size: 11px;
  line-height: 1.55;
  letter-spacing: .02em;
  color: var(--faq-faint);
  text-align: left;
}

@media (min-width: 720px) {
  .page-faq .faq-row__meta {
    text-align: right;
    max-width: 20em;
  }
}

.page-faq .faq-row__team {
  color: var(--yh-ice);
}

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

.page-faq .faq-catalog__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--faq-line);
  background: var(--yh-ink-2);
}

.page-faq .faq-catalog__figure figcaption {
  margin-top: 10px;
  font-family: var(--yh-font-editorial);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yh-mist);
}

/* ---------- 问答 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 44px;
    align-items: start;
  }
}

.page-faq .faq-group {
  min-width: 0;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 8px;
  font-family: var(--yh-font-editorial);
  font-size: 14.5px;
  letter-spacing: .1em;
  color: var(--yh-gold);
}

.page-faq .faq-group__title::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--yh-orange);
  transform: rotate(45deg);
}

.page-faq .faq-item {
  border-top: var(--faq-line);
}

.page-faq .faq-item:last-child {
  border-bottom: var(--faq-line);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.62;
  color: var(--yh-paper);
  transition: color .18s var(--yh-ease);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  font-family: var(--yh-font-num);
  font-size: 18px;
  line-height: 1.2;
  color: var(--yh-ice);
  transition: color .22s var(--yh-ease), transform .22s var(--yh-ease);
}

.page-faq .faq-item[open] > .faq-item__q {
  color: var(--yh-gold);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "−";
  color: var(--yh-gold);
  transform: rotate(180deg);
}

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--yh-gold);
}

.page-faq .faq-item__a {
  padding: 0 4px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-soft);
  animation: faq-reveal .22s var(--yh-ease) both;
}

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

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

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }
  .page-faq .faq-row,
  .page-faq .faq-item__q::after,
  .page-faq .faq-rail__link {
    transition: none;
  }
}

/* ---------- 四步排查 ---------- */
.page-faq .faq-steps-wrap {
  display: grid;
  gap: 24px;
}

@media (min-width: 980px) {
  .page-faq .faq-steps-wrap {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-step {
  padding: 16px 16px 18px;
  border: var(--faq-line);
  background: var(--yh-ink-2);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--yh-font-num);
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--yh-orange);
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--yh-paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--faq-soft);
}

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

.page-faq .faq-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: var(--faq-line);
  background: var(--yh-ink-2);
}

.page-faq .faq-steps__figure figcaption {
  margin-top: 10px;
  font-family: var(--yh-font-editorial);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yh-mist);
}

.page-faq .faq-note {
  margin-top: 26px;
  padding: 16px 18px;
  border-left: 3px solid var(--yh-gold);
  background: rgba(217, 164, 65, .08);
}

.page-faq .faq-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

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

.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible {
  color: var(--yh-gold);
}

/* ---------- 术语速查 ---------- */
.page-faq .faq-terms {
  margin: 0;
  display: grid;
  border-top: var(--faq-line);
}

.page-faq .faq-term {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: var(--faq-line);
}

@media (min-width: 760px) {
  .page-faq .faq-terms {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 44px;
  }
}

.page-faq .faq-term dt {
  font-family: var(--yh-font-num);
  font-size: 13.5px;
  letter-spacing: .04em;
  color: var(--yh-gold);
}

.page-faq .faq-term dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--faq-soft);
}

/* ---------- 全局焦点与链接 ---------- */
.page-faq a:focus-visible {
  outline: 2px solid var(--yh-gold);
  outline-offset: 2px;
}
<<<END>>>