.page-faq {
  --faq-index-w: 248px;
  --faq-line: rgba(31, 92, 74, 0.38);
  --faq-ink-soft: #33403b;
  background: var(--ink-900);
  color: var(--field-white);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-faq h2 {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.1;
  color: var(--field-white);
}

.page-faq h3 {
  margin: 0 0 6px;
  font-size: var(--f-16);
  line-height: 1.4;
  color: var(--field-white);
}

.page-faq .crumbs {
  padding-top: 18px;
  font-size: var(--f-12);
  letter-spacing: 0.08em;
  color: var(--gray-400);
}

.page-faq .crumbs a {
  color: var(--gray-400);
  text-decoration: none;
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--cyan-400);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: 24px;
  padding-block: clamp(24px, 4vw, 46px) clamp(28px, 5vw, 54px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero h1 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero h1 em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  color: var(--cyan-400);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: 18px 0 0;
  font-size: var(--f-16);
  line-height: 1.62;
  color: var(--gray-400);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 10px 14px;
  font-size: var(--f-14);
  color: var(--gray-400);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 140ms var(--ease), background-color 140ms var(--ease);
}

.page-faq .faq-hero__jump a:hover,
.page-faq .faq-hero__jump a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan-400);
  outline: none;
}

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

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 240px;
  height: auto;
  margin-inline: auto;
  border: 1px solid var(--faq-line);
  filter: saturate(0.85) brightness(0.92);
  object-fit: cover;
}

/* 索引与问答 */
.page-faq .faq-layout {
  display: grid;
  gap: 18px;
  padding-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-size: var(--f-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  font-size: var(--f-14);
  white-space: nowrap;
  color: var(--gray-400);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  transition: color 140ms var(--ease), border-color 140ms var(--ease), background-color 140ms var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: var(--f-12);
  color: var(--moss-500);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
  outline: none;
}

.page-faq .faq-group {
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-faq .faq-group__head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: var(--f-14);
  color: var(--gray-400);
}

.page-faq .faq-item {
  margin-top: 10px;
  background: var(--ink-800);
  border: 1px solid var(--faq-line);
  border-left: 2px solid var(--moss-500);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 140ms var(--ease), background-color 140ms var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--cyan-400);
  background: var(--ink-700);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 16px;
  font-size: var(--f-16);
  font-weight: 600;
  line-height: 1.45;
  color: var(--field-white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -2px;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--cyan-400);
  transition: transform 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-faq .faq-item__sign::before {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .faq-item__sign::after {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  color: var(--orange-500);
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 0 16px 16px;
  font-size: var(--f-14);
  line-height: 1.62;
  color: var(--gray-400);
  animation: faq-fade 180ms var(--ease) both;
}

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

/* 四步流程带 */
.page-faq .faq-steps {
  margin: 6px 0 30px;
  padding: clamp(22px, 3.4vw, 36px);
  background: var(--cream-100);
  color: var(--ink-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-steps .eyebrow {
  color: var(--moss-500);
}

.page-faq .faq-steps h2 {
  margin: 6px 0 22px;
  color: var(--ink-900);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding-top: 14px;
  border-top: 2px solid var(--moss-500);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--f-12);
  letter-spacing: 0.12em;
  color: var(--orange-500);
}

.page-faq .faq-step h3 {
  margin: 6px 0 6px;
  color: var(--ink-900);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: var(--f-14);
  line-height: 1.55;
  color: var(--faq-ink-soft);
}

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

/* 版本说明 */
.page-faq .faq-version {
  display: grid;
  gap: 24px;
  padding-block: clamp(30px, 5vw, 54px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-version__lead {
  max-width: 42ch;
  margin: 0;
  font-size: var(--f-16);
  line-height: 1.62;
  color: var(--gray-400);
}

.page-faq .faq-version__tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 0;
  font-size: var(--f-12);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.page-faq .faq-version__tag .u-mono {
  padding: 5px 10px;
  font-size: var(--f-20);
  letter-spacing: 0;
  color: var(--ink-900);
  background: var(--cyan-400);
}

.page-faq .faq-version__list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-version__list li {
  padding-left: 14px;
  font-size: var(--f-14);
  line-height: 1.62;
  color: var(--gray-400);
  border-left: 2px solid var(--amber-300);
}

.page-faq .faq-version__list strong {
  color: var(--field-white);
  font-weight: 600;
}

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

.page-faq .faq-version__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-line);
  filter: saturate(0.85) brightness(0.92);
  object-fit: cover;
}

/* 反馈 */
.page-faq .faq-feedback {
  display: grid;
  gap: 24px;
  padding: clamp(22px, 3.4vw, 38px);
  background: var(--ink-800);
  border-top: 2px solid var(--orange-500);
}

.page-faq .faq-feedback__lead {
  margin: 0 0 18px;
  font-size: var(--f-14);
  line-height: 1.62;
  color: var(--gray-400);
}

.page-faq .faq-feedback__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-feedback__list li {
  display: flex;
  gap: 10px;
  font-size: var(--f-14);
  line-height: 1.55;
  color: var(--field-white);
}

.page-faq .faq-feedback__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--f-12);
  line-height: 1.9;
  color: var(--orange-500);
}

.page-faq .faq-feedback__time {
  margin: 0 0 14px;
  font-size: var(--f-14);
  color: var(--gray-400);
}

.page-faq .faq-feedback__time .u-mono {
  display: block;
  margin-bottom: 4px;
  font-size: var(--f-20);
  color: var(--field-white);
}

.page-faq .faq-feedback__meta {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--f-14);
  line-height: 1.5;
  color: var(--gray-400);
  word-break: break-all;
}

.page-faq .faq-feedback__side .btn {
  margin-top: 10px;
}

/* 更新时间 */
.page-faq .faq-data {
  padding-block: clamp(30px, 5vw, 54px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-data__grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .faq-data__item {
  padding: 18px 16px;
  background: var(--ink-800);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-data__item p {
  margin: 0;
  font-size: var(--f-14);
  line-height: 1.62;
  color: var(--gray-400);
}

/* 账号权益 */
.page-faq .faq-plan {
  padding-block: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-plan__lead {
  max-width: 48ch;
  margin: 0 0 22px;
  font-size: var(--f-14);
  line-height: 1.62;
  color: var(--gray-400);
}

.page-faq .faq-plan__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-plan__card {
  padding: 20px 18px;
  background: var(--ink-800);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-plan__card h3 {
  font-family: var(--font-mono);
  font-size: var(--f-16);
  letter-spacing: 0.04em;
  color: var(--amber-300);
}

.page-faq .faq-plan__card ul {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-plan__card li {
  padding-left: 14px;
  font-size: var(--f-14);
  line-height: 1.55;
  color: var(--gray-400);
  border-left: 1px solid var(--faq-line);
}

.page-faq .faq-plan__card--feature {
  border-color: var(--cyan-400);
}

.page-faq .faq-plan__card--feature h3 {
  color: var(--cyan-400);
}

/* 出口 */
.page-faq .faq-next {
  padding-top: clamp(32px, 5vw, 56px);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-next p {
  max-width: 52ch;
  margin: 0 0 22px;
  font-size: var(--f-16);
  line-height: 1.62;
  color: var(--gray-400);
}

.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 700px) {
  .page-faq .faq-steps__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-data__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-plan__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 44px;
    align-items: center;
  }

  .page-faq .faq-hero__media img {
    max-width: 100%;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-step__arrow {
    display: block;
    position: absolute;
    top: 0;
    right: 4px;
    color: var(--moss-500);
    transform: translateY(-50%);
  }

  .page-faq .faq-step:last-child .faq-step__arrow {
    display: none;
  }

  .page-faq .faq-version {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 44px;
    align-items: center;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 0 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    padding: 9px 12px;
    white-space: normal;
    border: none;
    border-left: 2px solid var(--faq-line);
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: var(--ink-800);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__sign,
  .page-faq .faq-hero__jump a,
  .page-faq .faq-index__link,
  .page-faq .faq-item {
    transition: none;
  }
}
<<<END>>>