.page-faq {
  --faq-line: rgba(38, 54, 64, 0.14);
  --faq-line-dark: rgba(255, 255, 255, 0.14);
  --faq-ink-soft: rgba(38, 54, 64, 0.72);
  background: var(--deep-abyss);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(26px, 5vw, 54px)) 0 clamp(38px, 6vw, 78px);
  color: var(--white);
  background:
    radial-gradient(110% 78% at 10% 0%, rgba(22, 217, 208, 0.2), transparent 62%),
    radial-gradient(88% 70% at 96% 100%, rgba(255, 107, 74, 0.16), transparent 64%),
    linear-gradient(158deg, var(--deep-abyss) 0%, var(--ocean-800) 58%, var(--ocean-600) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -60px;
  height: 140px;
  background: radial-gradient(60% 100% at 50% 100%, rgba(142, 244, 236, 0.18), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
  margin-top: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-hero .eyebrow {
  color: var(--ice-cyan);
}

.page-faq .faq-hero__lead {
  max-width: 48ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 34px);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid rgba(142, 244, 236, 0.32);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ice-cyan);
  text-decoration: none;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-faq .faq-hero__tag:hover,
.page-faq .faq-hero__tag:focus-visible {
  border-color: var(--coral);
  color: var(--coral);
  background: rgba(255, 107, 74, 0.08);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(6, 26, 43, 0.5);
  box-shadow: 0 30px 70px -48px rgba(0, 0, 0, 0.9);
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(36px, 6vw, 84px) 0;
  background: var(--mist);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .faq-side__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ocean-600);
}

.page-faq .faq-side__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-side__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: none;
  padding: 8px 14px;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  font-size: 13.5px;
  white-space: nowrap;
  color: var(--slate);
  text-decoration: none;
  transition: border-color 0.28s var(--ease), color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-faq .faq-side__link-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ocean-600);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  border-color: var(--cyan);
  color: var(--deep-abyss);
  background: rgba(22, 217, 208, 0.1);
}

/* ---------- 区块头 ---------- */
.page-faq .faq-block {
  padding-top: clamp(30px, 5vw, 52px);
}

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

.page-faq .faq-block + .faq-block {
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--faq-line);
  padding-top: clamp(34px, 5vw, 60px);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  align-items: start;
}

.page-faq .faq-block__head .index-no {
  grid-row: span 2;
  color: rgba(18, 88, 115, 0.24);
  -webkit-text-stroke: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--deep-abyss);
}

.page-faq .faq-block__lead {
  grid-column: 1 / -1;
  max-width: 62ch;
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

/* ---------- 版本卡 ---------- */
.page-faq .faq-versions {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .vcard {
  position: relative;
  overflow: hidden;
  padding: 22px 18px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 36px -32px rgba(6, 26, 43, 0.7);
}

.page-faq .vcard::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--sand));
}

.page-faq .vcard__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ocean-600);
}

.page-faq .vcard h3 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.35;
  color: var(--deep-abyss);
}

.page-faq .vcard p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .vcard__meta {
  display: grid;
  gap: 6px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed rgba(217, 192, 140, 0.7);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
  opacity: 0.75;
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  padding: 18px 18px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--coral);
}

.page-faq .faq-step h3 {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--deep-abyss);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 资料归档 ---------- */
.page-faq .faq-filing {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-filing__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-left: 2px solid var(--sand);
  background: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-filing__no {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ocean-600);
}

.page-faq .faq-filing__item h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--deep-abyss);
}

.page-faq .faq-filing__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-list {
  margin-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-item__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-item__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  width: 100%;
  padding: 17px 4px;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--deep-abyss);
  transition: color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-faq .faq-item__trigger:hover,
.page-faq .faq-item__trigger:focus-visible {
  color: var(--ocean-600);
  background: rgba(22, 217, 208, 0.06);
  outline: none;
}

.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ocean-600);
}

.page-faq .faq-item__q {
  display: block;
}

.page-faq .faq-item__sign {
  position: relative;
  align-self: center;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(38, 54, 64, 0.28);
  border-radius: 50%;
  transition: border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ocean-600);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-faq .faq-item__sign::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq-item__sign::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .faq-item[data-open] .faq-item__sign {
  border-color: var(--coral);
  background: rgba(255, 107, 74, 0.08);
}

.page-faq .faq-item[data-open] .faq-item__sign::before {
  background: var(--coral);
}

.page-faq .faq-item[data-open] .faq-item__sign::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item .expand__inner {
  padding: 0 4px 20px 32px;
}

.page-faq .faq-item .expand__panel p {
  max-width: 64ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item .expand__panel p + p {
  margin-top: 10px;
}

/* ---------- 联系卡 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-contact__item {
  padding: 18px 18px 20px;
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.page-faq .faq-contact__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ocean-600);
}

.page-faq .faq-contact__value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.6;
  word-break: break-word;
  color: var(--deep-abyss);
}

.page-faq .faq-contact__item p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 7vw, 92px) 0;
  color: var(--white);
  background:
    radial-gradient(80% 90% at 88% 0%, rgba(22, 217, 208, 0.16), transparent 62%),
    linear-gradient(180deg, var(--ocean-800) 0%, var(--deep-abyss) 100%);
}

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

.page-faq .faq-index__copy h2 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-faq .faq-index__copy p {
  max-width: 46ch;
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.76);
}

.page-faq .faq-index__copy .btn {
  margin-top: 24px;
}

.page-faq .faq-index .index-no {
  color: rgba(142, 244, 236, 0.4);
  -webkit-text-stroke: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 48px);
  line-height: 1;
}

.page-faq .faq-index__figure {
  margin: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

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

.page-faq .faq-index__list {
  display: grid;
  gap: 10px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__card {
  display: grid;
  gap: 5px;
  height: 100%;
  padding: 18px 16px 20px;
  border: 1px solid var(--hairline-warm);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-faq .faq-index__card:hover,
.page-faq .faq-index__card:focus-visible {
  border-color: var(--cyan);
  background: rgba(22, 217, 208, 0.1);
  transform: translateY(-2px);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ice-cyan);
}

.page-faq .faq-index__card strong {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--white);
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--coral);
}

.page-faq .faq-index__desc {
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-versions,
  .page-faq .faq-steps,
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-filing {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-faq .faq-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-item__trigger {
    font-size: 15.5px;
    padding: 19px 6px;
  }

  .page-faq .faq-item .expand__inner {
    padding: 0 6px 24px 38px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

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

  .page-faq .faq-side__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 10px 12px;
    white-space: normal;
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    border-left-color: var(--coral);
    background: rgba(22, 217, 208, 0.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__card:hover,
  .page-faq .faq-index__card:focus-visible {
    transform: none;
  }
}
<<<END>>>