.page-faq {
  --faq-rail-w: 252px;
  --faq-gap: 28px;
  background: var(--ink-0);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 44px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(118% 88% at 92% 0%, rgba(63, 242, 208, 0.10), transparent 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(228, 180, 87, 0.07), transparent 70%),
    linear-gradient(180deg, var(--ink-1) 0%, var(--ink-0) 100%);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-hero__eyebrow {
  margin: 18px 0 14px;
  font-size: 12px;
  letter-spacing: 0.26em;
  color: var(--muted);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  background: rgba(18, 38, 31, 0.6);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: 4px 4px 22px 4px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.04);
}

.page-faq .media-frame__caption {
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--muted);
  background: rgba(11, 26, 22, 0.85);
  border-top: 1px solid var(--line);
}

/* ---------- 外壳：左目录 + 右条目流 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-top: 36px;
  padding-bottom: 72px;
}

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

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  position: relative;
  padding: 34px 0 38px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-group--wine {
  padding-left: 20px;
  padding-right: 20px;
  margin: 0 -20px;
  background: linear-gradient(180deg, rgba(74, 31, 51, 0.55), rgba(74, 31, 51, 0.12));
  border-radius: 2px 2px 24px 2px;
}

.page-faq .faq-group--indigo {
  padding-left: 20px;
  padding-right: 20px;
  margin: 0 -20px;
  background: linear-gradient(180deg, rgba(35, 42, 77, 0.6), rgba(35, 42, 77, 0.14));
  border-radius: 24px 2px 2px 2px;
}

.page-faq .faq-group--forest {
  padding-left: 20px;
  padding-right: 20px;
  margin: 0 -20px;
  background: linear-gradient(180deg, rgba(18, 143, 122, 0.18), rgba(18, 143, 122, 0.03));
  border-radius: 2px 22px 2px 22px;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.page-faq .faq-group h2 {
  margin: 0;
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--text);
}

.page-faq .faq-group h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 2px;
  margin-top: 12px;
  background: var(--signal);
}

.page-faq .faq-group__note {
  flex: 0 0 auto;
  writing-mode: vertical-rl;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--muted);
  opacity: 0.75;
}

.page-faq .faq-group__lead {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-group__more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-group__more a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 242, 208, 0.4);
}

.page-faq .faq-group__more a:hover,
.page-faq .faq-group__more a:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 分类标签 ---------- */
.page-faq .faq-chips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 2px 16px 2px 16px;
  background: rgba(18, 38, 31, 0.6);
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--signal);
  background: rgba(63, 242, 208, 0.09);
  transform: translateY(-2px);
}

.page-faq .faq-chip__key {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  display: block;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
  transition: background 0.24s ease;
}

.page-faq .faq-item[open] {
  background: rgba(11, 26, 22, 0.55);
}

.page-faq .faq-item__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 17px 12px 17px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q {
  flex: 1 1 260px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-item__tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-faq .tag-gold,
.page-faq .tag-signal,
.page-faq .tag-muted {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  line-height: 1.6;
  white-space: nowrap;
}

.page-faq .tag-gold {
  color: var(--gold-soft);
  border: 1px solid rgba(228, 180, 87, 0.5);
  background: rgba(228, 180, 87, 0.1);
}

.page-faq .tag-signal {
  color: var(--signal);
  border: 1px solid rgba(63, 242, 208, 0.5);
  background: rgba(63, 242, 208, 0.1);
}

.page-faq .tag-muted {
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(30, 58, 49, 0.5);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-left: auto;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
  background: var(--signal);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.page-faq .faq-item__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 12px 22px 4px;
  max-width: 72ch;
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 三步示意 ---------- */
.page-faq .faq-steps {
  margin: 30px 0 0;
  padding: 20px 16px 16px;
  border: 1px solid var(--line);
  border-radius: 2px 20px 2px 20px;
  background: rgba(18, 38, 31, 0.45);
}

.page-faq .faq-steps svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-steps__caption {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-steps__caption strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--signal);
  margin-right: 6px;
}

/* ---------- 规则配图 ---------- */
.page-faq .faq-rules-media {
  margin: 28px 0 0;
  border-radius: 2px 18px 2px 18px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-faq .faq-rules-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85);
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 26px;
}

.page-faq .faq-contact__item {
  padding: 18px 18px 20px;
  border-left: 2px solid var(--gold);
  background: rgba(11, 26, 22, 0.6);
  border-radius: 0 16px 16px 0;
}

.page-faq .faq-contact__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-contact__hint {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-prepare {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-prepare li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-prepare li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--signal);
}

.page-faq .faq-prepare strong {
  display: block;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 2px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 56px 0 60px;
  }

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

  .page-faq .faq-steps__caption {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-prepare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 26px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    column-gap: 60px;
    padding-top: 48px;
    padding-bottom: 96px;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--status-height) + 24px);
    align-self: start;
    padding-right: 18px;
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-rail__title {
    margin: 0 0 16px;
    font-size: 12px;
    letter-spacing: 0.24em;
    color: var(--muted);
  }

  .page-faq .section-index__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 2px;
  }

  .page-faq .section-index__link {
    display: block;
    padding: 9px 12px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--muted);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  }

  .page-faq .section-index__link:hover,
  .page-faq .section-index__link:focus-visible {
    color: var(--text);
    background: rgba(18, 38, 31, 0.7);
  }

  .page-faq .section-index__link[aria-current="true"] {
    color: var(--signal);
    border-left-color: var(--signal);
    background: rgba(63, 242, 208, 0.08);
  }

  .page-faq .faq-rail__hint {
    margin: 20px 0 0;
    padding-left: 12px;
    font-size: 12.5px;
    line-height: 1.8;
    color: var(--muted);
    opacity: 0.85;
  }

  .page-faq .faq-group {
    padding: 44px 0 48px;
  }

  .page-faq .faq-group--wine,
  .page-faq .faq-group--indigo,
  .page-faq .faq-group--forest {
    padding-left: 34px;
    padding-right: 34px;
    margin-left: -34px;
    margin-right: -10px;
  }

  .page-faq .faq-chips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-item__summary {
    padding: 20px 6px 20px 0;
  }

  .page-faq .faq-item__body {
    padding: 0 6px 26px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-item,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .section-index__link {
    transition: none !important;
  }

  .page-faq .faq-chip:hover,
  .page-faq .faq-chip:focus-visible {
    transform: none;
  }
}