/* ============================================================
   问答中心 /questions/
   ============================================================ */

.page-faq {
  --faq-cut: 16px;
  background-color: var(--indigo);
  background-image:
    radial-gradient(1100px 520px at 84% -10%, rgba(245, 166, 35, 0.10), transparent 62%),
    radial-gradient(760px 460px at 4% 36%, rgba(47, 163, 154, 0.07), transparent 66%);
  color: var(--paper);
  padding-bottom: 88px;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  max-width: 44rem;
  padding: 44px 0 8px;
}

.page-faq .faq-hero .display {
  margin: 12px 0 0;
  max-width: 18em;
}

.page-faq .faq-hero .lede {
  margin-top: 20px;
  max-width: 34em;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.82;
}

/* ---------- 分类跳转 ---------- */

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--paper);
  text-decoration: none;
  background: rgba(239, 230, 214, 0.06);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-jump__item .num {
  color: var(--gold);
  font-weight: 800;
  font-size: 0.8125rem;
  transition: color 180ms var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  background: var(--gold);
  color: var(--night);
}

.page-faq .faq-jump__item:hover .num,
.page-faq .faq-jump__item:focus-visible .num {
  color: var(--night);
}

/* ---------- 图片 ---------- */

.page-faq .faq-banner {
  margin: 34px 0 0;
}

.page-faq .faq-figure {
  margin: 0 0 26px;
}

.page-faq .faq-banner .media__img,
.page-faq .faq-figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background-color: var(--night);
}

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 顶部三条高频问题 ---------- */

.page-faq .faq-top {
  margin-top: 64px;
}

.page-faq .faq-top__title {
  margin: 0 0 20px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--slate);
}

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

@media (min-width: 900px) {
  .page-faq .faq-top__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-faq .faq-card {
  position: relative;
  background: var(--night);
  padding: 24px 22px 24px;
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
  transition: transform 180ms var(--ease), background-color 180ms var(--ease);
}

.page-faq .faq-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: var(--faq-cut);
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(245, 166, 35, 0));
  pointer-events: none;
}

.page-faq .faq-card:hover {
  transform: translateY(-2px);
  background: #0D1528;
}

.page-faq .faq-card__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper-white);
}

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

.page-faq .faq-card__no {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .faq-card__text { flex: 1 1 auto; min-width: 0; }

.page-faq .faq-card__a {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(239, 230, 214, 0.78);
}

.page-faq .faq-card__a p { margin: 0; }

/* ---------- 正文分组 ---------- */

.page-faq .faq-body {
  margin-top: 84px;
}

.page-faq .faq-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 56rem;
  scroll-margin-top: 28px;
}

.page-faq .faq-group + .faq-group {
  margin-top: 52px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-faq .faq-group {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 44px;
  }

  .page-faq .faq-group + .faq-group {
    margin-top: 62px;
    padding-top: 56px;
  }
}

.page-faq .faq-group__side {
  display: flex;
  align-items: center;
  gap: 14px;
}

@media (min-width: 900px) {
  .page-faq .faq-group__side {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding-top: 8px;
  }
}

.page-faq .faq-group__no {
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-faq .faq-group__label {
  writing-mode: horizontal-tb;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--slate);
}

@media (min-width: 900px) {
  .page-faq .faq-group__label {
    writing-mode: vertical-rl;
    letter-spacing: 0.34em;
    padding-top: 4px;
  }
}

.page-faq .faq-group__main {
  min-width: 0;
}

.page-faq .faq-group__title {
  margin: 0 0 12px;
  font-size: clamp(1.375rem, 3.6vw, 1.75rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper-white);
}

.page-faq .faq-group__lede {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 手风琴列表 ---------- */

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  background: rgba(239, 230, 214, 0.045);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  transition: background-color 180ms var(--ease);
}

.page-faq .faq-item:hover {
  background: rgba(239, 230, 214, 0.075);
}

.page-faq .faq-item[open] {
  background: rgba(239, 230, 214, 0.085);
  box-shadow: inset 3px 0 0 var(--gold);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--paper-white);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: 4px;
  font-family: var(--font-num);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1;
  color: var(--slate);
  transition: color 180ms var(--ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--gold);
}

.page-faq .faq-item__a {
  padding: 0 20px 20px;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(239, 230, 214, 0.78);
}

.page-faq .faq-item__a p { margin: 0; }
.page-faq .faq-item__a p + p { margin-top: 10px; }

.page-faq .faq-hl {
  font-family: var(--font-num);
  font-weight: 800;
  font-size: 1.06em;
  letter-spacing: -0.01em;
  color: var(--gold);
}

.page-faq .faq-inline-link {
  color: var(--paper-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 166, 35, 0.55);
  padding-bottom: 1px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-cta {
  margin-top: 76px;
  max-width: 56rem;
}

.page-faq .faq-cta__inner {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  padding: 34px 26px 36px;
  clip-path: polygon(26px 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%, 0 26px);
}

@media (min-width: 760px) {
  .page-faq .faq-cta__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 36px;
    padding: 42px 46px 44px;
  }
}

.page-faq .faq-cta__title {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-faq .faq-cta__text p {
  margin: 0;
  max-width: 38em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(27, 31, 39, 0.78);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 22px;
}

@media (min-width: 760px) {
  .page-faq .faq-cta__actions {
    margin-top: 0;
    flex-direction: column;
    align-items: flex-start;
  }
}

.page-faq .faq-cta__btn {
  display: inline-block;
  padding: 12px 22px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--paper-white);
  text-decoration: none;
  background: var(--night);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background-color 180ms var(--ease);
}

.page-faq .faq-cta__btn:hover,
.page-faq .faq-cta__btn:focus-visible {
  background: var(--agate);
}

.page-faq .faq-cta__link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(27, 31, 39, 0.4);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-cta__link:hover,
.page-faq .faq-cta__link:focus-visible {
  color: var(--agate);
  border-color: var(--agate);
}

/* ---------- 焦点与显现 ---------- */

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 3px;
}

.page-faq .faq-cta__btn:focus-visible,
.page-faq .faq-cta__link:focus-visible {
  outline-color: var(--agate);
}

.page-faq .faq-group[data-reveal].is-visible {
  animation: faq-rise 520ms var(--ease) both;
}

@keyframes faq-rise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 窄屏 ---------- */

@media (max-width: 720px) {
  .page-faq { padding-bottom: 64px; }

  .page-faq .faq-hero { padding-top: 32px; }

  .page-faq .faq-top { margin-top: 48px; }

  .page-faq .faq-body { margin-top: 62px; }

  .page-faq .faq-group + .faq-group {
    margin-top: 40px;
    padding-top: 36px;
  }

  .page-faq .faq-item__q {
    gap: 10px;
    padding: 16px 18px;
    font-size: 0.9375rem;
  }

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

  .page-faq .faq-cta { margin-top: 56px; }

  .page-faq .faq-jump__item { font-size: 0.8125rem; padding: 8px 12px; }
}

@media (max-width: 400px) {
  .page-faq .faq-jump__item { flex: 1 1 100%; justify-content: flex-start; }
}

/* ---------- 降低动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group[data-reveal].is-visible { animation: none; }

  .page-faq .faq-card,
  .page-faq .faq-jump__item,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after,
  .page-faq .faq-inline-link,
  .page-faq .faq-cta__btn,
  .page-faq .faq-cta__link {
    transition-duration: 1ms;
  }

  .page-faq .faq-card:hover { transform: none; }
}