.page-faq {
  --faq-rule: rgba(140, 147, 166, 0.3);
  --faq-aside-w: 264px;
  background: var(--indigo);
  color: var(--snow);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 20px 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(36px, 6vw, 72px);
  border-bottom: var(--bw) solid var(--line-dark);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(118deg, rgba(35, 224, 208, 0.1) 0%, rgba(35, 224, 208, 0) 44%),
    repeating-linear-gradient(90deg, rgba(247, 250, 252, 0.045) 0 1px, transparent 1px 8px);
}
.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
}
.page-faq .faq-hero-grid > * {
  min-width: 0;
}
.page-faq .faq-title {
  margin: 12px 0 0;
  max-width: 15ch;
  font-size: clamp(34px, 6.4vw, 62px);
  line-height: 1.06;
  color: var(--snow);
}
.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--snow-86);
}

/* 搜索框 */
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 560px;
  margin-top: 26px;
  padding: 8px 16px;
  background: var(--indigo-2);
  border: var(--bw) solid var(--line-dark-2);
  box-shadow: var(--shadow-dark);
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(35, 224, 208, 0.4), var(--shadow-dark);
}
.page-faq .faq-search-icon {
  position: relative;
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}
.page-faq .faq-search-icon::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 8px 0;
  border: 0;
  background: transparent;
  color: var(--snow);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}
.page-faq .faq-search-input::placeholder {
  color: var(--gray);
}
.page-faq .faq-search-input:focus {
  outline: none;
}

/* 快捷分组 */
.page-faq .faq-quicklinks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-chip {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--snow-86);
  text-decoration: none;
  background: rgba(28, 42, 82, 0.65);
  border: 1px solid var(--line-dark-2);
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.page-faq .faq-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* 首屏图 */
.page-faq .faq-hero-figure {
  margin: 0;
  background: var(--indigo-2);
  border: var(--bw) solid var(--line-dark-2);
  box-shadow: var(--shadow-dark);
  clip-path: polygon(0 2%, 100% 0, 100% 98%, 0 100%);
}
.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.page-faq .faq-hero-figure .media-cap {
  display: block;
  padding: 10px 14px;
  background: var(--indigo-3);
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
}
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}
.page-faq .faq-layout > * {
  min-width: 0;
}
.page-faq .faq-aside {
  padding: 18px 16px 20px;
  background: var(--indigo-2);
  border: var(--bw) solid var(--line-dark-2);
  box-shadow: var(--shadow-dark);
}
.page-faq .faq-aside-label {
  margin: 0 0 14px;
  color: var(--cyan);
}
.page-faq .faq-toc {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 10px 10px 12px;
  color: var(--snow-86);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.page-faq .faq-toc-link:hover,
.page-faq .faq-toc-link:focus-visible {
  background: rgba(35, 224, 208, 0.1);
  border-left-color: var(--cyan);
  color: var(--snow);
}
.page-faq .faq-toc-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .faq-toc-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
}
.page-faq .faq-aside-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin: 0 0 clamp(32px, 4vw, 52px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: var(--bw) solid var(--line-dark-2);
}
.page-faq .faq-group-num {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}
.page-faq .faq-group-title {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--snow);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-rule);
}
.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 4px 18px 16px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15.5px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.65;
  color: var(--snow);
  transition: background 0.16s ease, color 0.16s ease;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: transparent;
  transition: background 0.16s ease;
}
.page-faq .faq-item summary:hover {
  background: rgba(35, 224, 208, 0.05);
}
.page-faq .faq-item summary:hover::before,
.page-faq .faq-item[open] summary::before {
  background: var(--cyan);
}
.page-faq .faq-item[open] summary {
  color: var(--cyan);
}
.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}
.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
}
.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.page-faq .faq-mark::before {
  left: 2px;
  right: 2px;
  top: 10px;
  height: 2px;
}
.page-faq .faq-mark::after {
  top: 2px;
  bottom: 2px;
  left: 10px;
  width: 2px;
}
.page-faq .faq-item[open] .faq-mark::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-faq .faq-a {
  max-width: 68ch;
  padding: 0 4px 22px 16px;
  color: var(--snow-86);
  font-size: 15.5px;
  line-height: 1.9;
}
.page-faq .faq-a p {
  margin: 0 0 10px;
}
.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.page-faq .faq-item[open] .faq-a {
  animation: faq-open 0.18s ease-out;
}

/* ---------- 尾部联系 ---------- */
.page-faq .faq-outro {
  padding: 0 0 clamp(40px, 7vw, 88px);
}
.page-faq .faq-contact-card {
  padding: clamp(24px, 4vw, 44px);
  background: var(--cream);
  color: var(--ink);
  border: var(--bw) solid var(--ink);
  box-shadow: var(--shadow-cream);
}
.page-faq .faq-contact-card .kicker {
  color: var(--pine);
}
.page-faq .faq-contact-title {
  margin: 10px 0 12px;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--ink);
}
.page-faq .faq-contact-lede {
  max-width: 58ch;
  margin: 0 0 24px;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(26, 21, 18, 0.78);
}
.page-faq .faq-contact-list {
  display: grid;
  gap: 0;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-cream);
}
.page-faq .faq-contact-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-cream);
  min-width: 0;
}
.page-faq .faq-contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pine);
}
.page-faq .faq-contact-value {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}
.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}
.page-faq .faq-contact-btn {
  display: inline-block;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  background: var(--indigo);
  color: var(--snow);
  border: var(--bw) solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}
.page-faq .faq-contact-btn:hover,
.page-faq .faq-contact-btn:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--ink);
}
.page-faq .faq-contact-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .faq-contact-btn--ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: 3px 3px 0 rgba(26, 21, 18, 0.35);
}
.page-faq .faq-contact-btn--ghost:hover,
.page-faq .faq-contact-btn--ghost:focus-visible {
  background: rgba(26, 21, 18, 0.07);
  box-shadow: 5px 5px 0 rgba(26, 21, 18, 0.35);
}
.page-faq .faq-outro-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  background: var(--indigo-2);
  border: var(--bw) solid var(--line-dark-2);
  box-shadow: var(--shadow-dark);
}
.page-faq .faq-outro-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-contact-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(20px, 3vw, 36px);
  }
  .page-faq .faq-contact-list li {
    border-bottom: 0;
  }
}
@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(36px, 5vw, 72px);
  }
}
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-aside-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}
@media (max-width: 560px) {
  .page-faq .faq-quicklinks {
    flex-direction: column;
    align-items: stretch;
  }
  .page-faq .faq-chip {
    text-align: center;
  }
  .page-faq .faq-item summary {
    padding-right: 0;
    gap: 10px;
  }
  .page-faq .faq-contact-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .page-faq .faq-contact-btn {
    text-align: center;
  }
  .page-faq .faq-hero-figure {
    clip-path: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-a {
    animation: none;
  }
  .page-faq .faq-chip,
  .page-faq .faq-toc-link,
  .page-faq .faq-item summary,
  .page-faq .faq-contact-btn,
  .page-faq .faq-mark::before,
  .page-faq .faq-mark::after {
    transition: none;
  }
  .page-faq .faq-chip:hover,
  .page-faq .faq-contact-btn:hover {
    transform: none;
  }
}