.page-faq {
  --faq-hair: rgba(169, 214, 255, .14);
  --faq-wash: rgba(47, 168, 255, .08);
  --faq-glow: rgba(57, 255, 154, .10);
}

.page-faq .breadcrumb {
  margin-bottom: 26px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-hero__lead h1 {
  margin: 10px 0 18px;
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--c-white);
  max-width: 20ch;
}

.page-faq .faq-hero__lead .lead {
  max-width: 52ch;
  color: var(--c-ice);
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-chip {
  text-decoration: none;
  font-size: 13px;
  letter-spacing: .02em;
}

.page-faq .faq-chip:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 3px;
}

/* 更新节奏卡 */
.page-faq .faq-pulse {
  padding: 22px 22px 20px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
  background: linear-gradient(160deg, rgba(18, 59, 94, .72), rgba(7, 26, 47, .82));
  border: 1px solid var(--line-hot);
}

.page-faq .faq-pulse__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-blue);
  text-transform: uppercase;
}

.page-faq .faq-pulse__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-pulse__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-pulse__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-pulse__k {
  font-size: 14px;
  color: var(--c-ice);
}

.page-faq .faq-pulse__v {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-green);
  white-space: nowrap;
}

.page-faq .faq-pulse__v--amber {
  color: var(--c-amber);
}

.page-faq .faq-pulse__v--blue {
  color: var(--c-blue);
}

.page-faq .faq-copy {
  width: 100%;
  justify-content: center;
  font-size: 13px;
}

/* 首屏图 */
.page-faq .faq-hero__media {
  margin: 30px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  box-shadow: var(--shadow-2);
}

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

/* ---------- 时段三卡 ---------- */
.page-faq .faq-timeline-section {
  margin-top: 58px;
}

.page-faq .faq-timeline {
  display: grid;
  gap: 16px;
  padding-top: 20px;
}

.page-faq .faq-slot {
  position: relative;
  padding: 22px 20px 20px;
  border-radius: var(--r-md);
  background: linear-gradient(155deg, rgba(18, 59, 94, .55), rgba(7, 26, 47, .72));
  border: 1px solid var(--faq-hair);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-faq .faq-slot:hover {
  border-color: var(--line-hot);
}

.page-faq .faq-slot--hot {
  border-color: rgba(57, 255, 154, .34);
  background: linear-gradient(155deg, rgba(57, 255, 154, .10), rgba(7, 26, 47, .80));
}

.page-faq .faq-slot__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-amber);
}

.page-faq .faq-slot__title {
  margin: 10px 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-white);
}

.page-faq .faq-slot__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-ice);
}

.page-faq .faq-slot__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 168, 255, .45);
  padding-bottom: 2px;
}

.page-faq .faq-slot__link:hover {
  color: var(--c-green);
  border-bottom-color: rgba(57, 255, 154, .6);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-question-section {
  margin-top: 62px;
}

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

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--faq-hair);
  margin-bottom: 4px;
}

.page-faq .faq-group__head::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--c-green);
  box-shadow: 0 0 0 4px var(--faq-glow);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--c-white);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-hair);
  transition: background-color .25s var(--ease);
}

.page-faq .faq-item[open] {
  background: linear-gradient(90deg, var(--faq-glow), transparent 68%);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 6px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-white);
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--c-blue);
  transition: transform .25s var(--ease), color .25s var(--ease);
}

.page-faq .faq-item[open] > summary {
  color: var(--c-green);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--c-green);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--c-blue);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

.page-faq .faq-answer {
  padding: 0 6px 18px;
}

.page-faq .faq-answer p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ice);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-support {
  margin-top: 66px;
  padding: 30px 22px;
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, rgba(13, 42, 71, .78), rgba(7, 26, 47, .92));
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-support__media {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  background: rgba(7, 26, 47, .6);
}

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

.page-faq .faq-support__body .lead {
  margin-bottom: 22px;
  color: var(--c-ice);
  max-width: 54ch;
}

.page-faq .faq-steps {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-step__no {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-pill);
  background: var(--c-green);
  color: var(--c-deep);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-step p {
  margin: 0;
  padding-top: 4px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ice);
}

.page-faq .faq-support__cta {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-slot:nth-child(2) {
    margin-top: -20px;
  }

  .page-faq .faq-slot:nth-child(3) {
    margin-top: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .breadcrumb {
    margin-bottom: 34px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-pulse {
    padding: 26px 26px 22px;
  }

  .page-faq .faq-support {
    padding: 40px 36px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 36px;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 44px 46px;
  }

  .page-faq .faq-timeline-section,
  .page-faq .faq-question-section,
  .page-faq .faq-support {
    margin-top: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-slot,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-item {
    transition: none;
  }
}