.page-faq {
  --faq-radius: 2px;
  --faq-border: rgba(242, 245, 242, .16);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 40px) 0 48px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 163, 116, .26) 0%, rgba(10, 31, 24, 0) 58%),
    radial-gradient(80% 60% at 4% 100%, rgba(79, 209, 197, .12) 0%, rgba(10, 31, 24, 0) 62%),
    var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(242, 245, 242, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 245, 242, .035) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

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

.page-faq .crumb-sep {
  margin: 0 8px;
  color: var(--mist);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 22px;
}

.page-faq .faq-hero-copy .display-title {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 52px);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 900;
  text-transform: none;
  color: var(--paper);
}

.page-faq .faq-hero-copy .lede {
  max-width: 46em;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(242, 245, 242, .84);
}

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

/* 搜索过滤 */
.page-faq .faq-search {
  margin-top: 26px;
  padding: 18px;
  border: 2px solid var(--edge);
  border-radius: var(--faq-radius);
  background: rgba(17, 21, 26, .72);
  box-shadow: var(--shadow-soft);
  max-width: 620px;
}

.page-faq .faq-search-label {
  display: block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mist);
  margin-bottom: 10px;
}

.page-faq .faq-search-field {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--edge-soft);
  border-radius: var(--faq-radius);
  background: rgba(10, 31, 24, .8);
  padding: 0 12px;
}

.page-faq .faq-search-icon {
  width: 18px;
  height: 18px;
  flex: none;
  color: var(--neon);
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  padding: 12px 0;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(154, 168, 162, .8);
}

.page-faq .faq-search-field:focus-within {
  border-color: var(--chip);
  box-shadow: 0 0 0 3px rgba(227, 184, 92, .18);
}

.page-faq .faq-search-clear {
  flex: none;
  border: 1px solid var(--edge-soft);
  border-radius: var(--faq-radius);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 12px;
  padding: 5px 9px;
  cursor: pointer;
}

.page-faq .faq-search-clear:hover {
  color: var(--paper);
  border-color: var(--edge);
}

.page-faq .faq-search-hint {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
}

/* 首屏主图 */
.page-faq .faq-hero-media {
  margin: 0;
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
}

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

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  background: var(--ink);
  padding-bottom: 64px;
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

/* 章节索引 */
.page-faq .faq-index {
  position: static;
  border: 2px solid var(--faq-border);
  border-radius: var(--faq-radius);
  background: var(--carbon);
  padding: 18px;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--chip);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 10px;
  border-left: 3px solid transparent;
  color: rgba(242, 245, 242, .8);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-index-link:hover {
  background: rgba(31, 122, 84, .2);
  color: var(--paper);
}

.page-faq .faq-index-link.is-current {
  border-left-color: var(--chip);
  background: rgba(227, 184, 92, .12);
  color: var(--chip);
}

.page-faq .faq-index-link.is-current .faq-index-num {
  color: var(--chip);
}

.page-faq .faq-aside-card {
  margin-top: 18px;
  padding: 16px;
  border: 2px solid var(--edge-neon);
  border-radius: var(--faq-radius);
  background: linear-gradient(150deg, rgba(31, 122, 84, .34), rgba(17, 21, 26, .9));
}

.page-faq .faq-aside-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-aside-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 245, 242, .78);
}

.page-faq .faq-aside-btn {
  width: 100%;
  text-align: center;
}

/* 分组 */
.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h-scrolled) + 20px);
  border-top: 2px solid var(--faq-border);
  padding-top: 26px;
}

.page-faq .faq-group-head {
  display: flex;
  gap: 14px;
  align-items: stretch;
  margin-bottom: 20px;
}

.page-faq .faq-group-bar {
  flex: none;
  width: 8px;
  border-radius: var(--faq-radius);
}

.page-faq .faq-bar-a { background: linear-gradient(180deg, var(--chip), var(--chip-deep)); }
.page-faq .faq-bar-b { background: linear-gradient(180deg, var(--felt-bright), var(--felt-deep)); }
.page-faq .faq-bar-c { background: linear-gradient(180deg, var(--neon), var(--felt)); }
.page-faq .faq-bar-d { background: linear-gradient(180deg, var(--felt), var(--carbom, var(--carbon))); }
.page-faq .faq-bar-e { background: linear-gradient(180deg, var(--alert), var(--chip-deep)); }

.page-faq .faq-group-eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-faq .faq-group-head .section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 5.2vw, 30px);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-group-lede {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(242, 245, 242, .74);
}

/* 问答条目 */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-item {
  border: 2px solid var(--faq-border);
  border-radius: var(--faq-radius);
  background: var(--carbon);
  box-shadow: var(--shadow-soft);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.page-faq .faq-item:hover {
  border-color: var(--edge);
}

.page-faq .faq-item.is-open {
  border-color: var(--edge);
}

.page-faq .faq-q {
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
}

.page-faq .faq-trigger {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  text-align: left;
  padding: 16px 16px;
  cursor: pointer;
}

.page-faq .faq-trigger:hover .faq-q-text {
  color: var(--chip);
}

.page-faq .faq-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--chip);
  padding-top: 3px;
  min-width: 34px;
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  transition: color .2s ease;
}

.page-faq .faq-trigger .collapse-icon {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 2px solid var(--edge);
  border-radius: var(--faq-radius);
  transition: transform .22s ease, border-color .22s ease;
}

.page-faq .faq-trigger .collapse-icon::before,
.page-faq .faq-trigger .collapse-icon::after {
  content: "";
  position: absolute;
  background: var(--chip);
  transition: opacity .22s ease;
}

.page-faq .faq-trigger .collapse-icon::before {
  left: 3px;
  right: 3px;
  top: 50%;
  height: 2px;
  margin-top: -1px;
}

.page-faq .faq-trigger .collapse-icon::after {
  top: 3px;
  bottom: 3px;
  left: 50%;
  width: 2px;
  margin-left: -1px;
}

.page-faq .faq-trigger[aria-expanded="true"] {
  color: var(--paper);
}

.page-faq .faq-trigger[aria-expanded="true"] .collapse-icon {
  transform: rotate(135deg);
  border-color: var(--chip);
}

.page-faq .faq-a {
  padding: 0 16px 16px 62px;
  border-top: 1px solid rgba(242, 245, 242, .08);
  background: linear-gradient(180deg, rgba(31, 122, 84, .1), rgba(17, 21, 26, 0));
}

.page-faq .faq-a p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(242, 245, 242, .84);
  max-width: 40em;
}

.page-faq .faq-a p:first-child {
  margin-top: 14px;
}

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

/* 房间分组的图文错位 */
.page-faq .faq-room-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-room-media {
  margin: 0;
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
}

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

/* 联系准备 */
.page-faq .faq-support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-prep {
  padding: 20px;
  border: 2px solid var(--faq-border);
  background: var(--carbon);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-prep .card-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-prep-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 245, 242, .82);
  padding-left: 12px;
  border-left: 3px solid rgba(53, 163, 116, .5);
}

.page-faq .faq-prep-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--neon);
}

.page-faq .faq-prep-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-contact-card {
  padding: 20px;
  border: 2px solid var(--chip);
  background: linear-gradient(160deg, rgba(169, 126, 44, .22), rgba(17, 21, 26, .94));
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-contact-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--chip);
}

.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(242, 245, 242, .16);
}

.page-faq .faq-copy-label {
  flex: none;
  min-width: 34px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .faq-copy-value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-copy-btn {
  flex: none;
  border: 2px solid var(--edge);
  border-radius: var(--faq-radius);
  background: rgba(10, 31, 24, .7);
  color: var(--chip);
  font-family: var(--font-body);
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}

.page-faq .faq-copy-btn:hover {
  background: var(--chip);
  color: var(--ink);
}

.page-faq .faq-contact-note {
  margin: 14px 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 245, 242, .74);
}

.page-faq .faq-contact-cta {
  display: block;
  text-align: center;
}

.page-faq .faq-more {
  margin-top: 22px;
  padding: 18px;
  border: 2px dashed var(--edge-soft);
  border-radius: var(--faq-radius);
}

.page-faq .faq-more-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 245, 242, .78);
}

.page-faq .faq-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-empty {
  margin: 0;
  padding: 18px;
  border: 2px solid var(--alert);
  border-radius: var(--faq-radius);
  background: rgba(224, 75, 69, .12);
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-item[hidden],
.page-faq .faq-group[hidden] {
  display: none;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 56px) 0 60px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 34px;
    align-items: center;
  }

  .page-faq .faq-index-list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-search {
    padding: 20px;
  }

  .page-faq .faq-room-row {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    gap: 24px;
    align-items: start;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 20px;
  }

  .page-faq .faq-a {
    padding-left: 66px;
  }
}

/* ---------- 桌面：左索引 + 右问答 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 18px);
  }

  .page-faq .faq-trigger {
    padding: 18px 20px;
    font-size: 16.5px;
  }

  .page-faq .faq-a {
    padding: 0 20px 18px 74px;
  }

  .page-faq .faq-room-row {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .5fr);
    gap: 28px;
  }

  .page-faq .faq-room-media {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 18px);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-trigger .collapse-icon,
  .page-faq .faq-index-link,
  .page-faq .faq-q-text {
    transition: none;
  }
}

.page-faq {
  --carbom: transparent;
}