/* ===== 乐橙 · 常见问答 /faqs/ ===== */

.page-faq {
  --faq-line: var(--rule);
  --faq-line-soft: var(--rule-soft);
  --faq-ease: var(--ease);
  background: var(--c-paper);
  color: var(--c-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 60px) 0 clamp(34px, 5vw, 64px);
  background-color: var(--c-paper);
  background-image:
    repeating-linear-gradient(to right, var(--faq-line-soft) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, var(--faq-line-soft) 0 1px, transparent 1px 64px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: end;
}

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

.page-faq .faq-hero__eyebrow {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
  font-size: clamp(32px, 7vw, 72px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--c-ink);
}

.page-faq .faq-hero__intro {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: var(--lh-body);
  color: var(--c-ink-2);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  color: var(--c-mist);
}

.page-faq .faq-hero__meta b {
  margin-right: 5px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--c-ink);
}

.page-faq .faq-hero__figure {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--faq-line);
  background: var(--c-white);
  box-shadow: var(--shadow-layer);
}

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

/* ---------- 双栏骨架 ---------- */

.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-top: clamp(34px, 5vw, 68px);
  padding-bottom: clamp(46px, 7vw, 96px);
}

.page-faq .faq-index {
  min-width: 0;
  align-self: start;
}

.page-faq .faq-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 8px 11px 0;
  border-bottom: 1px solid var(--faq-line-soft);
  color: var(--c-ink-2);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.24s var(--faq-ease), padding-left 0.24s var(--faq-ease), border-color 0.24s var(--faq-ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  padding-left: 8px;
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

.page-faq .faq-index__no {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.page-faq .faq-index__list a:hover .faq-index__no,
.page-faq .faq-index__list a:focus-visible .faq-index__no {
  color: var(--c-orange);
}

.page-faq .faq-index__note {
  margin-top: 24px;
  padding: 16px 16px 16px 18px;
  background: var(--c-white);
  border: 1px solid var(--faq-line);
  box-shadow: var(--shadow-layer);
}

.page-faq .faq-index__dot {
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: var(--c-teal);
}

.page-faq .faq-index__note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-ink-2);
}

/* ---------- 问答分组 ---------- */

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

.page-faq .faq-group {
  margin-bottom: clamp(38px, 5vw, 64px);
  padding-top: 20px;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-faq .faq-group__no {
  flex: none;
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-paper);
  background: var(--c-ink);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 32px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-ink);
}

.page-faq .faq-group__count {
  margin-left: auto;
  flex: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-teal);
}

.page-faq .faq-group__lede {
  margin: 12px 0 20px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 手风琴条目 ---------- */

.page-faq .faq-item {
  margin-top: 12px;
  background: var(--c-white);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--c-paper-2);
  transition: border-color 0.28s var(--faq-ease), box-shadow 0.28s var(--faq-ease), transform 0.28s var(--faq-ease);
}

@media (hover: hover) {
  .page-faq .faq-item:hover {
    transform: translateY(-2px);
    border-color: var(--c-mist);
    box-shadow: var(--shadow-layer);
  }
}

.page-faq .faq-item[open] {
  border-left-color: var(--c-orange);
  box-shadow: var(--shadow-layer);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: 2px;
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--c-orange);
}

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

.page-faq .faq-item__sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-left: auto;
  margin-top: 4px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--c-mist);
  transition: transform 0.24s var(--faq-ease), opacity 0.24s var(--faq-ease), background-color 0.24s var(--faq-ease);
}

.page-faq .faq-item__sign::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item__sign::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

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

.page-faq .faq-item[open] .faq-item__sign::after {
  opacity: 0;
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item__body {
  padding: 0 16px 18px 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-ink-2);
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 66ch;
}

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

@media (prefers-reduced-motion: no-preference) {
  .page-faq .faq-item[open] > .faq-item__body {
    animation: faq-slip 0.32s var(--faq-ease) both;
  }
}

@keyframes faq-slip {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 联系区 ---------- */

.page-faq .faq-help {
  position: relative;
  padding: clamp(42px, 6vw, 84px) 0;
  background: var(--c-ink);
  color: var(--c-paper);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, var(--rule-invert) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(to bottom, var(--rule-invert) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-faq .faq-help__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  align-items: center;
}

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

.page-faq .faq-help__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-amber);
}

.page-faq .faq-help__title {
  margin: 14px 0 0;
  font-size: clamp(26px, 3.6vw, 46px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.page-faq .faq-help__lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 242, 234, 0.76);
}

.page-faq .faq-help__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(246, 242, 234, 0.86);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--c-orange);
}

.page-faq .faq-help__contact {
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--rule-invert);
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__contact div {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
}

.page-faq .faq-help__contact dt {
  flex: none;
  min-width: 76px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-faq .faq-help__contact dd {
  margin: 0;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--c-paper);
  word-break: break-word;
}

.page-faq .faq-help__channels {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-help__channels .btn--outline {
  color: var(--c-paper);
  border-color: rgba(246, 242, 234, 0.42);
  background: transparent;
}

.page-faq .faq-help__channels .btn--outline:hover,
.page-faq .faq-help__channels .btn--outline:focus-visible {
  color: var(--c-ink);
  border-color: var(--c-paper);
  background: var(--c-paper);
}

.page-faq .faq-help__figure {
  margin: 0;
  min-width: 0;
  border: 1px solid var(--rule-invert);
  background: var(--c-ink-2);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-item__body {
    padding: 0 22px 20px 56px;
  }

  .page-faq .faq-item > summary {
    padding: 17px 22px;
  }
}

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

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-body {
    grid-template-columns: 224px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

@media (max-width: 559px) {
  .page-faq .faq-group__head {
    flex-wrap: wrap;
    gap: 10px;
  }

  .page-faq .faq-group__count {
    margin-left: 0;
  }

  .page-faq .faq-help__contact dt {
    min-width: 0;
  }
}