.page-faq {
  --faq-panel-open: #1b2456;
  --faq-scroll-offset: 120px;
  background: var(--ki-indigo);
  color: var(--ki-white);
  font-family: var(--ki-font-sans);
}

/* ---------- 面包屑 ---------- */
.page-faq .ki-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 18px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ki-muted);
}
.page-faq .ki-breadcrumb__item {
  color: var(--ki-muted);
  text-decoration: none;
}
.page-faq .ki-breadcrumb__item + .ki-breadcrumb__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--ki-line-strong);
}
.page-faq a.ki-breadcrumb__item:hover {
  color: var(--ki-mint);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 80px);
  border-bottom: 2px solid var(--ki-line);
  background:
    radial-gradient(110% 80% at 88% 0%, rgba(53, 240, 192, 0.16), transparent 62%),
    radial-gradient(80% 70% at 4% 100%, rgba(123, 92, 255, 0.2), transparent 64%);
}
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  margin-top: clamp(22px, 4vw, 40px);
}
.page-faq .faq-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--ki-font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ki-mint);
}
.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 64px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ki-white);
}
.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--ki-muted);
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .faq-hero__media {
  margin: 0;
  border: 2px solid var(--ki-line-strong);
  background: var(--ki-panel);
  box-shadow: var(--ki-shadow-mint);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  overflow: hidden;
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 栏目索引 ---------- */
.page-faq .faq-cats-section {
  padding: clamp(36px, 6vw, 72px) 0;
}
.page-faq .faq-cats__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ki-line);
}
.page-faq .faq-cats__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ki-orange);
}
.page-faq .faq-cats__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ki-white);
}
.page-faq .faq-cats__note {
  margin: 0;
  font-size: 14px;
  color: var(--ki-muted);
}
.page-faq .faq-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}
.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 18px;
  background: var(--ki-panel);
  border: 2px solid var(--ki-line-strong);
  box-shadow: var(--ki-shadow);
  color: var(--ki-white);
  text-decoration: none;
  transition: transform 120ms ease-out, box-shadow 120ms ease-out, border-color 120ms ease-out;
}
.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translate(-4px, -4px);
  border-color: var(--ki-mint);
  box-shadow: 8px 8px 0 rgba(8, 12, 34, 0.9);
}
.page-faq .faq-cat__num {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ki-orange);
}
.page-faq .faq-cat__name {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.01em;
}
.page-faq .faq-cat__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ki-muted);
}
.page-faq .faq-cat__count {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ki-mint);
}

/* ---------- 问答区 ---------- */
.page-faq .faq-board {
  padding: clamp(36px, 6vw, 76px) 0 clamp(40px, 6vw, 80px);
  border-top: 2px solid var(--ki-line);
}
.page-faq .faq-board__head {
  display: grid;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ki-line);
}
.page-faq .faq-board__lead {
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.page-faq .faq-board__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ki-mint);
}
.page-faq .faq-board__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ki-white);
}
.page-faq .ki-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-board__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  margin-top: 28px;
}
.page-faq .faq-side {
  display: none;
}
.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ki-muted);
}
.page-faq .faq-side__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  margin-bottom: 8px;
  background: var(--ki-panel);
  border: 2px solid var(--ki-line);
  color: var(--ki-white);
  text-decoration: none;
  font-size: 14px;
  transition: border-color 120ms ease-out, color 120ms ease-out;
}
.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  border-color: var(--ki-mint);
  color: var(--ki-mint);
}
.page-faq .faq-side__link .ki-mono {
  font-size: 12px;
  color: var(--ki-orange);
}

.page-faq .faq-group {
  scroll-margin-top: var(--faq-scroll-offset);
  margin-bottom: 34px;
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ki-mint);
}
.page-faq .faq-group__dot {
  width: 10px;
  height: 10px;
  flex: none;
  background: var(--ki-mint);
  border-radius: 50%;
  animation: faq-pulse 2s infinite ease-in-out;
}

.page-faq .faq-item {
  display: block;
  border: 2px solid var(--ki-line);
  border-left: 3px solid var(--ki-line-strong);
  background: var(--ki-panel);
  margin-bottom: 10px;
  transition: border-color 160ms ease-out, background 160ms ease-out;
}
.page-faq .faq-item[open] {
  border-color: var(--ki-line-strong);
  border-left-color: var(--ki-orange);
  background: var(--faq-panel-open);
}
.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__q::marker {
  content: "";
}
.page-faq .faq-item__num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ki-mint);
}
.page-faq .faq-item[open] .faq-item__num {
  color: var(--ki-orange);
}
.page-faq .faq-item__text {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ki-white);
}
.page-faq .faq-item__mark {
  flex: none;
  position: relative;
  width: 14px;
  height: 14px;
}
.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--ki-mint);
}
.page-faq .faq-item__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}
.page-faq .faq-item__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 160ms ease-out;
}
.page-faq .faq-item[open] .faq-item__mark::after {
  transform: scaleY(0);
}
.page-faq .faq-item__a {
  padding: 0 16px 18px 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ki-muted);
}
.page-faq .faq-item__a p {
  margin: 0;
  max-width: 66ch;
}

@keyframes faq-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- 横向视觉带 ---------- */
.page-faq .faq-band {
  position: relative;
  margin: 0;
  border-top: 2px solid var(--ki-line);
  border-bottom: 2px solid var(--ki-line);
  background: var(--ki-panel);
}
.page-faq .faq-band img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(180px, 34vw, 320px);
  object-fit: cover;
}
.page-faq .faq-band__caption {
  padding: 12px var(--ki-gutter);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ki-muted);
  border-top: 1px solid var(--ki-line);
}

/* ---------- 纠错流程（浅底） ---------- */
.page-faq .faq-fix {
  padding: clamp(40px, 6vw, 84px) 0;
  background: var(--ki-paper);
  color: var(--ki-ink);
}
.page-faq .faq-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}
.page-faq .faq-fix__num {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ki-sichuan);
}
.page-faq .faq-fix__title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.14;
  color: var(--ki-ink);
}
.page-faq .faq-fix__lede {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(16, 21, 40, 0.78);
}
.page-faq .faq-fix__more {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(16, 21, 40, 0.68);
}
.page-faq .faq-fix__more a {
  color: var(--ki-sichuan);
  text-decoration: none;
  border-bottom: 2px solid var(--ki-sichuan);
}
.page-faq .faq-fix__more a:hover {
  color: var(--ki-ink);
  border-bottom-color: var(--ki-ink);
}
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-step;
}
.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding: 14px 18px 14px 58px;
  margin-bottom: 10px;
  background: var(--ki-white);
  border: 2px solid var(--ki-ink-line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--ki-ink);
}
.page-faq .faq-steps li:last-child {
  margin-bottom: 0;
}
.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 14px;
  font-family: var(--ki-font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ki-orange);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  padding: clamp(40px, 6vw, 84px) 0;
  background: var(--ki-indigo);
}
.page-faq .faq-help__panel {
  padding: clamp(24px, 4vw, 44px);
  background: var(--ki-panel);
  border: 2px solid var(--ki-line-strong);
  border-left: 3px solid var(--ki-orange);
  box-shadow: var(--ki-shadow);
}
.page-faq .faq-help__num {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ki-orange);
}
.page-faq .faq-help__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.18;
  color: var(--ki-white);
}
.page-faq .faq-help__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ki-muted);
}
.page-faq .faq-help__channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .faq-help__channel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  border: 2px solid var(--ki-line);
  background: rgba(10, 15, 44, 0.6);
}
.page-faq .faq-help__key {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ki-muted);
}
.page-faq .faq-help .ki-copy {
  align-self: flex-start;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--ki-font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ki-mint);
  text-align: left;
}
.page-faq .faq-help .ki-copy:hover,
.page-faq .faq-help .ki-copy:focus-visible {
  color: var(--ki-orange);
}
.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-help__channels {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-faq .faq-item__q {
    padding: 17px 20px;
  }
  .page-faq .faq-item__text {
    font-size: 16px;
  }
  .page-faq .faq-item__a {
    padding: 0 20px 20px 20px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-board__head {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
  }
  .page-faq .faq-fix__grid {
    grid-template-columns: 5fr 7fr;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-board__body {
    grid-template-columns: 240px minmax(0, 1fr);
  }
  .page-faq .faq-side {
    display: block;
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group__dot {
    animation: none;
  }
  .page-faq .faq-cat,
  .page-faq .faq-item,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-side__link {
    transition: none;
  }
  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible {
    transform: none;
  }
}