.page-faq {
  --faq-surface: #ffffff;
  --faq-line: rgba(8, 21, 26, 0.14);
  --faq-line-light: rgba(233, 239, 241, 0.28);
  --faq-sticky: 28px;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 52px;
  color: var(--mist-100);
  background:
    radial-gradient(120% 130% at 88% -10%, rgba(47, 182, 196, 0.26), transparent 58%),
    linear-gradient(158deg, var(--ink-900) 0%, var(--ink-700) 58%, var(--teal-600) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(233, 239, 241, 0.07) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(0deg, rgba(233, 239, 241, 0.07) 0 1px, transparent 1px 92px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb__list {
  margin: 0 0 22px;
  padding: 0;
}

.page-faq .faq-hero .breadcrumb__link,
.page-faq .faq-hero .breadcrumb__item {
  color: rgba(233, 239, 241, 0.7);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-hero .breadcrumb__link:hover {
  color: var(--gold-200);
}

.page-faq .faq-hero .label {
  color: var(--gold-200);
  background: rgba(233, 239, 241, 0.1);
}

.page-faq .faq-hero__title {
  margin: 18px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6.4vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(233, 239, 241, 0.82);
}

.page-faq .faq-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 36px;
}

.page-faq .faq-index__item {
  display: grid;
  gap: 6px;
  padding: 18px 16px 20px;
  border: 2px solid var(--faq-line-light);
  background: rgba(8, 21, 26, 0.3);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s linear, background-color 0.2s linear, transform 0.2s linear;
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-color: var(--copper-500);
  background: rgba(201, 138, 52, 0.16);
  transform: translateY(-2px);
}

.page-faq .faq-index__num {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--copper-500);
}

.page-faq .faq-index__name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--mist-100);
}

.page-faq .faq-index__note {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: rgba(233, 239, 241, 0.7);
}

/* ---------- 分组通用 ---------- */
.page-faq .faq-group,
.page-faq .faq-platform,
.page-faq .faq-contact {
  scroll-margin-top: 92px;
}

.page-faq .faq-group {
  padding: 54px 0;
}

.page-faq .faq-group__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-group__aside {
  align-self: start;
}

.page-faq .faq-group__num {
  display: block;
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--copper-500);
  letter-spacing: 0.04em;
}

.page-faq .faq-group__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink-text);
}

.page-faq .faq-group__desc {
  margin: 12px 0 0;
  max-width: 30ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate-500);
}

.page-faq .faq-group__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 2px solid var(--ink-900);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--slate-500);
}

.page-faq .faq-group__sub {
  margin: 0;
  padding-left: 14px;
  border-left: 4px solid var(--cyan-400);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1875rem;
  line-height: 1.5;
  color: var(--teal-600);
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-steps__num {
  padding-top: 0.28em;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--copper-500);
}

.page-faq .faq-steps__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--ink-text);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 0;
}

.page-faq .faq-figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 2px solid var(--ink-900);
  box-shadow: var(--hard);
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  margin-top: 30px;
}

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

.page-faq .faq-qa .accordion__item:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-qa .accordion__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  min-height: 46px;
  padding: 18px 2px;
  border: 0;
  background: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--ink-text);
  transition: color 0.2s linear;
}

.page-faq .faq-qa .accordion__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--copper-500);
}

.page-faq .faq-qa .accordion__trigger[aria-expanded="true"] {
  color: var(--teal-600);
}

.page-faq .faq-qa .accordion__trigger[aria-expanded="true"]::after {
  content: "−";
  color: var(--cyan-400);
}

.page-faq .faq-qa .accordion__trigger:hover,
.page-faq .faq-qa .accordion__trigger:focus-visible {
  color: var(--teal-600);
}

.page-faq .faq-qa .accordion__panel {
  max-width: 62ch;
  margin: 0 0 6px 2px;
  padding: 0 2px 22px 18px;
  border-left: 2px solid var(--cyan-400);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate-500);
}

.page-faq .faq-qa .accordion__panel p {
  margin: 0;
}

.page-faq .faq-qa .accordion__panel a {
  color: var(--teal-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-qa .accordion__panel a:hover {
  color: var(--copper-500);
}

/* ---------- 工具卡片 ---------- */
.page-faq .faq-tools {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-faq .faq-tools__item {
  padding: 18px 18px 20px;
  border: 2px solid var(--ink-900);
  background: var(--faq-surface);
  box-shadow: var(--hard-sm);
}

.page-faq .faq-tools__num {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--copper-500);
}

.page-faq .faq-tools__name {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-text);
}

.page-faq .faq-tools__text {
  margin: 8px 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--slate-500);
}

/* ---------- 网页版与移动端 ---------- */
.page-faq .faq-platform {
  padding: 56px 0;
  background-image:
    radial-gradient(80% 120% at 8% 0%, rgba(47, 182, 196, 0.2), transparent 62%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-700) 100%);
}

.page-faq .faq-platform .label {
  color: var(--gold-200);
  background: rgba(233, 239, 241, 0.1);
}

.page-faq .faq-platform__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.25rem);
  line-height: 1.2;
  color: var(--mist-100);
}

.page-faq .faq-platform__lead {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(233, 239, 241, 0.78);
}

.page-faq .faq-platform__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 30px;
}

.page-faq .faq-platform__card {
  padding: 24px 22px 26px;
  border: 2px solid var(--faq-line-light);
  background: rgba(8, 21, 26, 0.36);
  box-shadow: var(--hard-sm);
}

.page-faq .faq-platform__tag {
  display: inline-block;
  padding: 4px 8px;
  border: 1px solid var(--cyan-400);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}

.page-faq .faq-platform__name {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.35;
  color: var(--mist-100);
}

.page-faq .faq-platform__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-platform__list li {
  position: relative;
  margin: 0 0 12px;
  padding-left: 20px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(233, 239, 241, 0.82);
}

.page-faq .faq-platform__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  background: var(--copper-500);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  padding: 54px 0 72px;
}

.page-faq .faq-contact__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-contact__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  line-height: 1.25;
  color: var(--ink-text);
}

.page-faq .faq-contact__text {
  margin: 16px 0 22px;
  max-width: 48ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate-500);
}

.page-faq .faq-contact__text a {
  color: var(--teal-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-contact__text a:hover {
  color: var(--copper-500);
}

.page-faq .faq-contact__channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-faq .faq-contact__channel {
  padding-top: 16px;
  border-top: 3px solid var(--copper-500);
}

.page-faq .faq-contact__key {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--slate-500);
}

.page-faq .faq-contact__val {
  display: block;
  margin-top: 10px;
  font-size: clamp(0.9375rem, 3.6vw, 1.125rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-text);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__hint {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--slate-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 56px 0 68px;
  }

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

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

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

@media (min-width: 860px) {
  .page-faq .faq-platform__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-group {
    padding: 76px 0;
  }

  .page-faq .faq-platform {
    padding: 80px 0;
  }

  .page-faq .faq-contact {
    padding: 68px 0 88px;
  }

  .page-faq .faq-contact__inner {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-group__inner {
    grid-template-columns: 244px 1fr;
    gap: 48px;
  }

  .page-faq .faq-group__aside {
    position: sticky;
    top: var(--faq-sticky);
  }

  .page-faq .faq-contact__inner {
    grid-template-columns: 5fr 4fr;
  }
}
<<<END>>>