.page-faq {
  background: var(--bg-deep);
  color: var(--text-1);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(18px, 3.4vw, 34px);
  padding-bottom: clamp(34px, 6vw, 72px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__text {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.05rem, 5.4vw, 3.85rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--text-2);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--bg-panel);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(61, 242, 192, 0.06);
}

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

.page-faq .faq-hero__figure figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  border-top: 1px solid var(--line-soft);
  background: var(--bg-float);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
  }
}

/* ---------- 六格分类索引 ---------- */
.page-faq .faq-index {
  padding-block: clamp(30px, 5vw, 62px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-index__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-index__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  letter-spacing: -0.005em;
}

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

.page-faq .faq-index__item > a {
  display: grid;
  align-content: start;
  gap: 6px;
  height: 100%;
  padding: clamp(16px, 2.6vw, 26px);
  background: var(--bg-panel);
  color: inherit;
  text-decoration: none;
  transition: background 0.28s var(--ease);
}

.page-faq .faq-index__item > a:hover,
.page-faq .faq-index__item > a:focus-visible {
  background: var(--bg-float);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-3);
}

.page-faq .faq-index__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  letter-spacing: 0.01em;
}

.page-faq .faq-index__desc {
  font-size: 13px;
  line-height: 1.62;
  color: var(--text-2);
}

.page-faq .faq-index__tag {
  justify-self: start;
  margin-top: 4px;
  padding: 3px 9px;
  border: 1px solid var(--amber);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-index__item--hot > a {
  background: linear-gradient(152deg, var(--cyan-dim) 0%, #0c3a31 82%);
}

.page-faq .faq-index__item--hot > a:hover,
.page-faq .faq-index__item--hot > a:focus-visible {
  background: linear-gradient(152deg, #22a98b 0%, #0d4338 82%);
}

.page-faq .faq-index__item--hot .faq-index__num {
  color: var(--cyan);
}

.page-faq .faq-index__item--hot .faq-index__desc {
  color: rgba(233, 239, 246, 0.82);
}

@media (min-width: 640px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(30px, 5vw, 58px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 1fr) 258px;
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 118px;
  }
}

.page-faq .faq-group {
  scroll-margin-top: 118px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 62px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: clamp(4px, 1vw, 10px);
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  letter-spacing: -0.005em;
}

.page-faq .faq-group__figure {
  margin: 0 0 clamp(12px, 2vw, 20px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--bg-panel);
}

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

.page-faq .faq-group__figure figcaption {
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  border-top: 1px solid var(--line-soft);
  background: var(--bg-float);
}

/* 手风琴 */
.page-faq .qa {
  border-top: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  padding-left: clamp(10px, 1.6vw, 18px);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(61, 242, 192, 0.07), transparent 66%);
}

.page-faq .qa summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0 clamp(10px, 1.8vw, 16px);
  align-items: start;
  padding: clamp(14px, 2.1vw, 20px) 0;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.58;
  color: var(--text-1);
  transition: color 0.24s var(--ease);
}

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

.page-faq .qa summary:hover {
  color: var(--cyan);
}

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .qa__num {
  padding-top: 0.28em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-3);
  transition: color 0.24s var(--ease);
}

.page-faq .qa[open] .qa__num {
  color: var(--cyan);
}

.page-faq .qa__q {
  font-weight: 500;
}

.page-faq .qa__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 0.34em;
  flex: none;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan-dim);
  border-radius: 1px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-faq .qa__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .qa__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .qa[open] .qa__mark::before,
.page-faq .qa[open] .qa__mark::after {
  background: var(--cyan);
}

.page-faq .qa[open] .qa__mark::after {
  transform: rotate(90deg);
}

.page-faq .qa__a {
  padding-bottom: clamp(15px, 2.1vw, 20px);
  max-width: 64ch;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.82;
  color: var(--text-2);
}

.page-faq .qa__a p {
  margin: 0;
}

/* 侧栏 */
.page-faq .faq-side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-side__panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--bg-panel);
  padding: clamp(16px, 2.2vw, 22px);
}

.page-faq .faq-side__panel--note {
  background: linear-gradient(180deg, var(--bg-float), var(--bg-panel));
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side__list a {
  display: block;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-faq .faq-side__list li:last-child a {
  border-bottom: 0;
}

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

.page-faq .faq-side__rhythm {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 13px;
  color: var(--text-2);
}

.page-faq .faq-side__rhythm .num {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 自检清单 ---------- */
.page-faq .checklist {
  padding-block: clamp(36px, 6vw, 82px);
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(20, 30, 43, 0.55), transparent 72%);
  scroll-margin-top: 118px;
}

.page-faq .checklist__inner {
  max-width: 880px;
}

.page-faq .checklist h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.8vw, 1.95rem);
  line-height: 1.2;
  letter-spacing: -0.005em;
}

.page-faq .checklist__lede {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.78;
  color: var(--text-2);
}

.page-faq .checklist__list {
  list-style: none;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-faq .checklist__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 2vw, 20px);
  padding: clamp(14px, 2vw, 18px) 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .checklist__item:first-child {
  border-top: 1px dashed var(--line-soft);
}

.page-faq .checklist__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--cyan-dim);
  background: rgba(61, 242, 192, 0.07);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .checklist__item strong {
  display: block;
  font-size: clamp(14.5px, 1.5vw, 16px);
  font-weight: 600;
  color: var(--text-1);
}

.page-faq .checklist__item p {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-2);
}

/* ---------- 联系收束 ---------- */
.page-faq .faq-contact {
  padding-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-contact__panel {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(20px, 3.4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, var(--bg-float), var(--bg-panel) 62%);
  box-shadow: inset 0 0 0 1px rgba(61, 242, 192, 0.05);
}

.page-faq .faq-contact__lead h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.8vw, 1.95rem);
  line-height: 1.2;
  letter-spacing: -0.005em;
}

.page-faq .faq-contact__lead > p {
  margin: 12px 0 0;
  max-width: 50ch;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.8;
  color: var(--text-2);
}

.page-faq .faq-contact__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .faq-contact__mail a {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.6vw, 16px);
  letter-spacing: 0.01em;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-contact__mail a:hover {
  text-decoration: underline;
}

.page-faq .faq-contact__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-3);
}

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

.page-faq .faq-contact__info {
  margin: 0;
  align-self: start;
}

.page-faq .info-row {
  display: grid;
  grid-template-columns: 5.5em minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .info-row:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-faq .info-row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text-3);
  padding-top: 2px;
}

.page-faq .info-row dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
  word-break: break-word;
}

@media (min-width: 860px) {
  .page-faq .faq-contact__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__num,
  .page-faq .qa__mark::before,
  .page-faq .qa__mark::after,
  .page-faq .faq-index__item > a,
  .page-faq .faq-side__list a {
    transition: none;
  }
}
<<<END>>>