.page-faq {
  --faq-card: rgba(14, 42, 71, 0.62);
  --faq-card-strong: rgba(14, 42, 71, 0.88);
  --faq-hair: rgba(143, 166, 188, 0.18);
  --faq-hair-strong: rgba(143, 166, 188, 0.34);
  position: relative;
  isolation: isolate;
  padding-bottom: clamp(48px, 8vw, 120px);
}

.page-faq::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(250px, 46vw, 470px);
  background:
    radial-gradient(120% 92% at 12% 0%, rgba(255, 122, 61, 0.22), rgba(255, 122, 61, 0) 60%),
    radial-gradient(100% 84% at 92% 6%, rgba(43, 224, 200, 0.18), rgba(43, 224, 200, 0) 62%),
    linear-gradient(180deg, rgba(15, 61, 52, 0.55), rgba(7, 26, 47, 0));
  clip-path: polygon(0 0, 100% 0, 100% 72%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

/* 面包屑 */
.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin: 0 6px;
  color: var(--mist);
  opacity: 0.6;
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-faq .breadcrumb a[aria-current="page"] {
  color: var(--ivory);
}

/* 首屏 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  padding-top: clamp(26px, 4.6vw, 54px);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(12px, 1.6vw, 18px);
}

.page-faq .index {
  margin: 0;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(33px, 7.2vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--ivory);
  max-width: 20ch;
}

.page-faq .lede {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.78;
  color: rgba(244, 241, 232, 0.86);
}

.page-faq .faq-hero__note {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  padding-left: 14px;
  border-left: 2px solid rgba(43, 224, 200, 0.45);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: clamp(14px, 2.4vw, 22px);
  background: var(--faq-card);
}

.page-faq .faq-stats .stat-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5.2vw, 46px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-stats__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* 分类切换 */
.page-faq .faq-switch {
  position: sticky;
  top: 0;
  z-index: 6;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px var(--gut);
  margin-bottom: clamp(14px, 2.4vw, 24px);
  background: linear-gradient(180deg, rgba(7, 26, 47, 0.96) 66%, rgba(7, 26, 47, 0));
  scrollbar-width: none;
}

.page-faq .faq-switch::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-switch__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--faq-hair-strong);
  background: rgba(14, 42, 71, 0.66);
  color: var(--ivory);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-switch__link:hover,
.page-faq .faq-switch__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(43, 224, 200, 0.1);
}

/* 问答面板 */
.page-faq .faq-panel {
  padding-block: clamp(24px, 3.6vw, 40px);
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 86px;
}

.page-faq .faq-answers:has(.faq-panel:target) .faq-panel:not(:target) {
  display: none;
}

.page-faq .faq-panel__head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-panel h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.1;
  color: var(--ivory);
}

.page-faq .faq-panel__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.76;
  color: var(--mist);
}

.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1000 / 640;
  object-fit: cover;
}

.page-faq .faq-figure .media-caption {
  display: block;
  padding: 12px 18px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  border-top: 1px solid var(--faq-hair);
}

/* 问题条目 */
.page-faq .faq-list {
  counter-reset: faq;
  display: grid;
  gap: clamp(10px, 1.4vw, 14px);
}

.page-faq .faq-item {
  counter-increment: faq;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  transition: border-color 0.24s ease, background 0.24s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(43, 224, 200, 0.4);
  background: var(--faq-card-strong);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(15px, 2vw, 20px) clamp(16px, 2.2vw, 24px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ivory);
}

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

.page-faq .faq-item summary::before {
  content: counter(faq, decimal-leading-zero);
  flex: 0 0 auto;
  min-width: 26px;
  padding-top: 1px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-item summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  margin-left: auto;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 0.24s ease, border-color 0.24s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--orange);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

.page-faq .faq-item p {
  margin: 0;
  padding: 0 clamp(16px, 2.2vw, 24px) clamp(16px, 2.2vw, 22px);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-item p a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 224, 200, 0.5);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-item p a:hover,
.page-faq .faq-item p a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* 咨询引导 */
.page-faq .faq-help {
  margin-top: clamp(30px, 5vw, 60px);
  scroll-margin-top: 86px;
}

.page-faq .faq-help__inner {
  position: relative;
  padding: clamp(26px, 5vw, 56px);
  border: 1px solid var(--faq-hair-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(90% 130% at 88% 0%, rgba(255, 122, 61, 0.24), rgba(255, 122, 61, 0) 62%),
    linear-gradient(160deg, rgba(14, 42, 71, 0.92), rgba(15, 61, 52, 0.74));
}

.page-faq .faq-help__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(80px, 22vw, 220px);
  height: 4px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
  border-bottom-right-radius: var(--pill);
}

.page-faq .faq-help__head {
  max-width: 60ch;
}

.page-faq .faq-help h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.12;
  color: var(--ivory);
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 2.8vw, 28px) 0 0;
  padding: 1px;
  background: var(--faq-hair-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .faq-help__channel {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.2vw, 24px);
  background: rgba(7, 26, 47, 0.72);
}

.page-faq .faq-help__label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-help__value {
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 600;
  color: var(--ivory);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: clamp(14px, 2vw, 18px) 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(244, 241, 232, 0.8);
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

/* 中等屏幕 */
@media (min-width: 720px) {
  .page-faq .faq-help__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-panel {
    padding-block: clamp(30px, 4vw, 52px);
  }
}

/* 宽屏：首屏错位双栏，统计竖排 */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(36px, 5vw, 76px);
  }

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

  .page-faq .faq-stats li {
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: 14px;
  }

  .page-faq .faq-switch {
    padding-inline: calc((100vw - var(--wrap)) / 2 + var(--gut));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item summary::after,
  .page-faq .faq-switch__link {
    transition: none;
  }
}