.page-faq {
  --faq-line: rgba(20, 32, 74, .13);
  --faq-notch: 18px;
  display: block;
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding: clamp(18px, 3vw, 32px) 0 clamp(28px, 5vw, 54px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-grass);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 5.6vw, 52px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--c-navy);
}

.page-faq .faq-hero .text-lead {
  margin: 0 0 20px;
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .faq-hero__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-hero__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-faq .faq-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 2px;
  background: var(--c-orange);
}

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

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(28px, 5vw, 56px);
}

.page-faq .faq-index {
  display: none;
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-grass);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 2px solid var(--c-grass);
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--c-ink);
  text-decoration: none;
  transition: background-color .18s ease, color .18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--c-mint);
  color: var(--c-grass-deep);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-orange);
}

/* ---------- 分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(34px, 5vw, 62px);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-faq .faq-group .sec-head {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  position: relative;
  margin: 0 0 10px;
  background: #fff;
  border: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-item::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: var(--faq-notch);
  height: var(--faq-notch);
  background: var(--c-paper);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background-color .2s ease;
}

.page-faq .faq-item[open]::before {
  background: var(--c-orange);
}

.page-faq .faq-item[open] {
  background: var(--c-mint);
}

.page-faq .faq-item__q {
  position: relative;
  display: block;
  padding: 16px 46px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-navy);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--c-grass);
  border-bottom: 2px solid var(--c-grass);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .22s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-item__a {
  padding: 0 24px 18px 18px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--c-ink);
}

.page-faq .faq-item__a a {
  color: var(--c-grass-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(14, 122, 107, .4);
}

.page-faq .faq-item__a a:hover {
  text-decoration-color: var(--c-orange);
}

/* ---------- 组间提示条 ---------- */
.page-faq .faq-cue {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  margin: 6px 0 0;
  padding: 15px 20px;
  background: var(--c-navy);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-cue__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: #fff;
}

.page-faq .faq-cue__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 33, .45);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .faq-cue__link::after {
  content: "→";
  font-size: 15px;
  line-height: 1;
}

.page-faq .faq-cue__link:hover,
.page-faq .faq-cue__link:focus-visible {
  color: #fff;
  border-color: #fff;
}

/* ---------- 术语小词典 ---------- */
.page-faq .glossary-wrap {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin-top: 18px;
}

.page-faq .glossary__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--c-navy);
}

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

.page-faq .glossary__item {
  position: relative;
  padding: 12px 14px;
  background: var(--c-paper);
}

.page-faq .glossary__item::after {
  content: attr(data-tip);
  position: absolute;
  left: 8px;
  bottom: calc(100% + 4px);
  padding: 6px 10px;
  background: var(--c-navy);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.2;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 6;
}

.page-faq .glossary__item:hover::after,
.page-faq .glossary__item:focus-within::after {
  opacity: 1;
  transform: translateY(0);
}

.page-faq .glossary__term {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-grass-deep);
  margin-bottom: 4px;
}

.page-faq .glossary__def {
  display: block;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-ink);
}

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

.page-faq .glossary__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 联络区 ---------- */
.page-faq .faq-support {
  display: grid;
  gap: 20px;
}

.page-faq .faq-support__kicker {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--c-navy);
}

.page-faq .prep-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .prep-list__item label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--c-orange-soft);
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease;
}

.page-faq .prep-list__item label:hover {
  border-left-color: var(--c-orange);
  background: var(--c-mint);
}

.page-faq .prep-list__box {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--c-grass);
}

.page-faq .prep-list__text {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-ink);
}

.page-faq .prep-list__hint {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-grass-deep);
}

.page-faq .faq-support__contact {
  padding: 22px 20px;
  background: var(--c-navy);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-support__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-lime);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 3px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--c-orange);
}

.page-faq .faq-contact__v {
  font-size: 15px;
  line-height: 1.6;
  color: #fff;
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.faq-contact__v {
  border-bottom: 1px solid rgba(255, 255, 255, .35);
  padding-bottom: 1px;
}

.page-faq a.faq-contact__v:hover {
  border-color: var(--c-orange);
  color: var(--c-orange-soft);
}

.page-faq .faq-contact__note {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(247, 250, 249, .78);
}

.page-faq .faq-support__cta {
  display: inline-block;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .glossary__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .glossary-wrap {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: start;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    display: block;
    position: sticky;
    top: calc(var(--topbar-h) + 28px);
  }
}
<<<END>>>