.page-faq {
  background: var(--c-cloud);
  color: var(--c-ink);
  overflow-x: clip;
  font-family: var(--font-body);
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.page-faq .faq-crumb {
  padding-top: 20px;
  padding-bottom: 4px;
}

.page-faq .as-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #5d7086;
}

.page-faq .as-breadcrumb a {
  color: #2f527a;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .as-breadcrumb a:hover,
.page-faq .as-breadcrumb a:focus-visible {
  color: var(--c-blue-deep);
  border-bottom-color: var(--c-signal);
}

.page-faq .as-breadcrumb__sep {
  color: #9aaabd;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  margin: 14px var(--gutter) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--c-cloud);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(43, 228, 208, 0.22), transparent 56%),
    linear-gradient(152deg, var(--c-indigo) 0%, var(--c-blue) 58%, var(--c-blue-deep) 100%);
  box-shadow: var(--shadow-deep);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -140px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.34), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding: clamp(28px, 5vw, 56px) clamp(20px, 4vw, 48px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.86);
}

.page-faq .faq-finder {
  margin-top: 26px;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(244, 247, 251, 0.18);
  background: var(--c-glass);
  backdrop-filter: blur(8px);
}

.page-faq .faq-finder__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

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

.page-faq .faq-finder__list a {
  display: inline-block;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid rgba(244, 247, 251, 0.26);
  color: var(--c-cloud);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-finder__list a:hover,
.page-faq .faq-finder__list a:focus-visible {
  background: var(--c-signal);
  border-color: var(--c-signal);
  color: var(--c-ink);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .faq-hero__stats b {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 600;
  color: var(--c-cyan);
}

.page-faq .faq-hero__stats span {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: rgba(244, 247, 251, 0.66);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(244, 247, 251, 0.16);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06);
}

/* ============ 移动端章节 ============ */
.page-faq .faq-mobile {
  margin-top: clamp(40px, 7vw, 76px);
  padding: clamp(38px, 6vw, 74px) 0;
  color: var(--c-cloud);
  background: linear-gradient(180deg, var(--c-teal) 0%, #04292b 100%);
  scroll-margin-top: 84px;
}

.page-faq .faq-mobile__grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-mobile h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-mobile__lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.8);
}

.page-faq .faq-scenes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-scenes li {
  padding: 5px 11px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #bdf3ec;
  background: rgba(43, 228, 208, 0.1);
  border: 1px solid rgba(43, 228, 208, 0.26);
}

.page-faq .faq-seg {
  position: relative;
  margin-top: 30px;
}

.page-faq .faq-seg__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-seg__bar {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(244, 247, 251, 0.1);
  border: 1px solid rgba(244, 247, 251, 0.18);
}

.page-faq .faq-seg__label {
  cursor: pointer;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  color: rgba(244, 247, 251, 0.72);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq #faq-dev-phone:checked ~ .faq-seg__bar label[for="faq-dev-phone"],
.page-faq #faq-dev-tablet:checked ~ .faq-seg__bar label[for="faq-dev-tablet"] {
  background: var(--c-cyan);
  color: #04302e;
  font-weight: 600;
}

.page-faq #faq-dev-phone:focus-visible ~ .faq-seg__bar label[for="faq-dev-phone"],
.page-faq #faq-dev-tablet:focus-visible ~ .faq-seg__bar label[for="faq-dev-tablet"] {
  outline: 2px solid var(--c-signal);
  outline-offset: 2px;
}

.page-faq .faq-seg__panels {
  margin-top: 22px;
}

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

.page-faq #faq-dev-phone:checked ~ .faq-seg__panels .faq-seg__panel[data-panel="phone"],
.page-faq #faq-dev-tablet:checked ~ .faq-seg__panels .faq-seg__panel[data-panel="tablet"] {
  display: block;
}

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

.page-faq .faq-steps li {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(244, 247, 251, 0.07);
  border-left: 2px solid rgba(43, 228, 208, 0.5);
}

.page-faq .faq-steps__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-cyan);
  padding-top: 3px;
}

.page-faq .faq-steps h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-cloud);
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

.page-faq .faq-mobile__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(43, 228, 208, 0.22);
  align-self: start;
}

.page-faq .faq-mobile__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.05);
}

/* ============ 浅色问答区 ============ */
.page-faq .faq-block {
  padding: clamp(40px, 6.5vw, 76px) 0;
  border-top: 1px solid var(--c-line);
  scroll-margin-top: 84px;
}

.page-faq .faq-block--docs {
  background: linear-gradient(180deg, rgba(201, 214, 228, 0.24), transparent 72%);
}

.page-faq .faq-block--top {
  background: #ffffff;
}

.page-faq .faq-block__head {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq .faq-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-blue-deep);
}

.page-faq .faq-block__head > p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: #3b4d63;
}

/* 维度卡 */
.page-faq .faq-dims {
  display: grid;
  gap: 12px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-dim {
  padding: 18px;
  border-radius: var(--radius);
  background: #ffffff;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-blue-mid);
}

.page-faq .faq-dim__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-signal);
}

.page-faq .faq-dim h3 {
  margin: 6px 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-blue-deep);
}

.page-faq .faq-dim p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #46586e;
}

/* 手风琴 */
.page-faq .faq-list {
  border-top: 1px solid var(--c-line);
}

.page-faq .faq-list--narrow {
  max-width: 840px;
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-blue-deep);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--c-blue-mid);
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-signal);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 34px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: #7c8ba0;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
}

.page-faq .faq-item__body {
  padding: 0 0 20px 46px;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: #3b4d63;
}

/* ============ 支持区 ============ */
.page-faq .faq-support {
  padding: clamp(38px, 6vw, 70px) 0;
  background: linear-gradient(135deg, #ffffff 0%, var(--c-cloud) 100%);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  scroll-margin-top: 84px;
}

.page-faq .faq-support__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-support h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--c-wine);
}

.page-faq .faq-support__copy p {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: #3b4d63;
}

.page-faq .faq-support__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-support__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 18px;
  list-style: none;
  border-radius: var(--radius);
  background: #ffffff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-wine);
}

.page-faq .faq-support__facts li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-support__facts b {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--c-blue-deep);
}

.page-faq .faq-support__facts span {
  font-size: 12px;
  color: #64768c;
}

/* ============ 尾部延伸 ============ */
.page-faq .faq-more {
  margin-top: 34px;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--c-blue-ink);
  color: var(--c-cloud);
}

.page-faq .faq-more p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.86);
}

.page-faq .faq-more__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-faq .faq-hero__lead {
    font-size: 16px;
  }

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

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

  .page-faq .faq-item summary {
    font-size: 17px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: center;
    gap: 40px;
  }

  .page-faq .faq-mobile__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    align-items: start;
    gap: 44px;
  }

  .page-faq .faq-block__head {
    grid-template-columns: minmax(0, 0.66fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-support__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 44px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-dims {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-dim:nth-child(even) {
    margin-top: 20px;
  }

  .page-faq .faq-item__body {
    padding-left: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .as-breadcrumb a,
  .page-faq .faq-finder__list a,
  .page-faq .faq-seg__label,
  .page-faq .faq-item summary {
    transition: none;
  }
}