.page-faq {
  --faq-open-bg: #101A30;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: clip;
}

/* ========== 面包屑 ========== */
.page-faq .breadcrumb {
  margin-bottom: 28px;
}
.page-faq .breadcrumb__current {
  color: var(--text-dim);
  font-weight: 600;
}

/* ========== 首屏 Hero ========== */
.page-faq .page-faq-hero {
  position: relative;
  padding: 44px 0 52px;
}
.page-faq .page-faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 40%;
  height: 120%;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 59, 76, 0.16), transparent 52%);
  clip-path: polygon(16% 0, 100% 0, 78% 100%, 0 100%);
}
.page-faq .page-faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-line) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.26;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 72%);
}
.page-faq .page-faq-hero__grid {
  position: relative;
  z-index: 1;
}
.page-faq .page-faq-hero__main {
  max-width: 820px;
}
.page-faq .page-faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  border-left: 3px solid var(--accent-red);
  padding-left: 10px;
}
.page-faq .page-faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.page-faq .page-faq-hero__lead {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 0 24px;
}
.page-faq .page-faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-faq .page-faq-hero__aside {
  margin-top: 28px;
}
.page-faq .page-faq-hero__stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1.1;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  border: 2px solid var(--accent-gold);
  padding: 10px 12px;
  transform: rotate(2deg);
  background: rgba(255, 197, 61, 0.04);
}
.page-faq .page-faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 20px 0 0;
}
.page-faq .page-faq-hero__stats > div {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  padding: 12px 10px;
}
.page-faq .page-faq-hero__stats dt {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.page-faq .page-faq-hero__stats dd {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent-red);
  margin: 0;
}

/* ========== 过滤工具栏 ========== */
.page-faq .page-faq-toolbar {
  position: sticky;
  top: calc(var(--header-height) + 10px);
  z-index: 60;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  margin-top: 8px;
  margin-bottom: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(11, 17, 32, 0.88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--accent-red);
}
.page-faq .faq-search {
  flex: 1 1 260px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 4px 12px;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
}
.page-faq .faq-search__icon {
  color: var(--accent-cyan);
  display: inline-flex;
}
.page-faq .faq-search__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  white-space: nowrap;
}
.page-faq .faq-search__input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.page-faq .faq-search__input::placeholder {
  color: var(--text-dim);
  opacity: 0.65;
}
.page-faq .faq-quicklinks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.page-faq .faq-quicklink {
  display: inline-block;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  transition: border-color 200ms var(--ease-out), color 200ms var(--ease-out);
}
.page-faq .faq-quicklink:hover,
.page-faq .faq-quicklink:focus-visible {
  border-color: var(--accent-red);
  color: var(--accent-red);
  outline: none;
}

/* ========== 分区标题 ========== */
.page-faq .page-faq-section {
  margin-top: 52px;
}
.page-faq .page-faq-section__head {
  display: grid;
  grid-template-columns: 64px 1fr;
  column-gap: 14px;
  align-items: start;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-line);
}
.page-faq .page-faq-section__index {
  grid-row: span 2;
  justify-self: start;
  margin-top: 4px;
  height: 64px;
  padding-left: 10px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.12em;
  color: var(--accent-red);
  border-left: 3px solid var(--accent-red);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.page-faq .page-faq-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.page-faq .page-faq-section__desc {
  grid-column: 2;
  font-size: 0.9rem;
  color: var(--text-dim);
  margin: 0;
}

/* ========== 分区网格 ========== */
.page-faq .page-faq-section__grid {
  display: grid;
  gap: 22px;
  align-items: start;
}

/* ========== FAQ 列表 ========== */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}
.page-faq .faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-left: 3px solid transparent;
  transition: background 240ms var(--ease-out), border-color 240ms var(--ease-out);
}
.page-faq .faq-item:hover {
  border-color: var(--border-line);
}
.page-faq .faq-item[open] {
  background: var(--faq-open-bg);
  border-left-color: var(--accent-red);
}
.page-faq .faq-item__summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  min-height: 52px;
  cursor: pointer;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: -2px;
}
.page-faq .faq-item__num {
  flex: 0 0 28px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-red);
  letter-spacing: 0.06em;
}
.page-faq .faq-item__question {
  flex: 1 1 auto;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
}
.page-faq .faq-item__icon {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 800;
  color: var(--accent-cyan);
  border: 1px solid var(--border-line);
  transition: transform 220ms var(--ease-out), border-color 220ms var(--ease-out), color 220ms var(--ease-out);
}
.page-faq .faq-item__icon::before {
  content: "+";
}
.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* 手风琴展开 */
.page-faq .faq-item__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 320ms var(--ease-out);
}
.page-faq .faq-item[open] .faq-item__answer {
  grid-template-rows: 1fr;
}
.page-faq .faq-item__answer-inner {
  overflow: hidden;
  padding: 0 18px 0 58px;
}
.page-faq .faq-item[open] .faq-item__answer-inner {
  padding-bottom: 18px;
  animation: pageFaqAnswerIn 320ms var(--ease-out) both;
}
@keyframes pageFaqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.page-faq .faq-item__answer-inner p {
  margin: 0 0 10px;
  font-size: 0.93rem;
  color: var(--text-dim);
  border-left: 1px solid var(--border-line);
  padding-left: 14px;
}
.page-faq .faq-item__answer-inner a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-item__answer-inner a:hover {
  color: var(--accent-red);
}
.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-gold);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 197, 61, 0.5);
}
.page-faq .faq-copy:hover {
  color: var(--accent-red);
  border-bottom-color: var(--accent-red);
}

/* ========== 侧栏资讯卡 ========== */
.page-faq .faq-aside {
  position: relative;
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-line);
}
.page-faq .faq-aside::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-style: solid;
  border-width: 0 18px 18px 0;
  border-color: transparent var(--accent-red) transparent transparent;
}
.page-faq .faq-aside__media {
  margin: 0;
}
.page-faq .faq-aside__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border: 1px solid var(--border-line);
  background: #0E172A;
}
.page-faq .faq-aside__media figcaption {
  padding-top: 10px;
  margin-top: 10px;
  border-top: 1px solid var(--border-line);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.page-faq .faq-aside__note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
}
.page-faq .faq-aside__times {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.page-faq .faq-aside__times span {
  flex: 1 1 0;
  text-align: center;
  padding: 8px 4px;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
}
.page-faq .faq-aside__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.page-faq .faq-aside__fact {
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  padding: 12px;
  font-size: 0.76rem;
  line-height: 1.4;
  color: var(--text-dim);
}
.page-faq .faq-aside__fact span {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--accent-red);
}

/* ========== 规格速查 ========== */
.page-faq .faq-spec {
  border: 1px dashed rgba(255, 197, 61, 0.65);
  background: rgba(255, 197, 61, 0.04);
  padding: 16px;
}
.page-faq .faq-spec__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--accent-gold);
}
.page-faq .faq-spec__list {
  margin: 0;
}
.page-faq .faq-spec__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-line);
}
.page-faq .faq-spec__row:last-child {
  border-bottom: 0;
}
.page-faq .faq-spec__row dt {
  color: var(--text-dim);
  font-size: 0.82rem;
}
.page-faq .faq-spec__row dd {
  margin: 0;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* ========== 底部 CTA ========== */
.page-faq .page-faq-cta {
  margin-top: 56px;
  margin-bottom: 28px;
  display: grid;
  gap: 18px;
  padding: 28px 24px;
  background: linear-gradient(135deg, rgba(255, 59, 76, 0.1), rgba(19, 232, 210, 0.04));
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--accent-red);
}
.page-faq .page-faq-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  font-weight: 900;
  margin: 0 0 6px;
}
.page-faq .page-faq-cta__desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.page-faq .page-faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ========== 桌面端 ========== */
@media (min-width: 980px) {
  .page-faq .page-faq-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: end;
  }
  .page-faq .page-faq-hero__aside {
    margin-top: 0;
  }
  .page-faq .page-faq-hero__stats {
    grid-template-columns: 1fr;
    margin-top: 16px;
  }
  .page-faq .page-faq-hero__stats > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
  }
  .page-faq .page-faq-hero__stats dd {
    text-align: right;
  }

  .page-faq .page-faq-section__grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
    gap: 28px;
  }
  .page-faq .page-faq-section__grid--flip .faq-list {
    grid-column: 2;
    grid-row: 1;
  }
  .page-faq .page-faq-section__grid--flip .faq-aside {
    grid-column: 1;
    grid-row: 1;
  }
  .page-faq .faq-item__question {
    font-size: 1.04rem;
  }

  .page-faq .page-faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 32px 36px;
  }
}

@media (min-width: 1200px) {
  .page-faq .page-faq-section__grid {
    grid-template-columns: minmax(0, 1fr) 400px;
  }
  .page-faq .faq-aside {
    padding: 20px;
  }
}