/* ===================== 答疑中心 page scope ===================== */
.page-faq {
  --faq-idx-w: 252px;
  --faq-tick: clamp(1.5rem, 4vw, 3rem);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: clamp(1rem, 3vw, 1.75rem);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}
.page-faq .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}
.page-faq .crumbs span[aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(1.25rem, 4vw, 2.75rem) 0 clamp(1.5rem, 4vw, 2.75rem);
  border-bottom: 2px solid var(--line);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: min(64%, 820px);
  background: var(--panel);
  border-left: 2px solid var(--line);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  z-index: -2;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(46%, 540px);
  height: 5px;
  background: var(--orange);
  z-index: -1;
}
.page-faq .faq-hero__inner {
  position: relative;
  min-width: 0;
}
.page-faq .faq-hero__title {
  margin: 0.6rem 0 0;
  font-size: clamp(2.5rem, 8.5vw, 5.25rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--white);
}
.page-faq .faq-hero__lede {
  max-width: 46ch;
  margin: 1.25rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  display: flex;
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}
.page-faq .faq-hero__facts::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-hero__facts > li {
  flex: 1 0 auto;
  min-width: 140px;
  padding: 0.9rem 1.1rem 0.2rem 0;
  margin-right: 1.1rem;
  border-right: 1px solid var(--line);
}
.page-faq .faq-hero__facts > li:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}
.page-faq .faq-hero__fv {
  display: block;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1;
  color: var(--white);
}
.page-faq .faq-hero__fk {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}
.page-faq .faq-hero__fl {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.6875rem;
  line-height: 1.5;
  color: var(--dim);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.75rem);
  padding: var(--faq-tick) 0 clamp(2rem, 5vw, 3.5rem);
  min-width: 0;
}
.page-faq .faq-answers {
  min-width: 0;
}

/* ---------- 问题索引轨道 ---------- */
.page-faq .faq-index {
  min-width: 0;
}
.page-faq .faq-index__label {
  margin: 0 0 0.65rem;
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--dim);
}
.page-faq .faq-index__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.4rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}
.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0.5rem 0.85rem;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--white);
  border-color: var(--orange);
  background: var(--panel);
}
.page-faq .faq-index__no {
  font-size: 0.6875rem;
  color: var(--orange);
}

/* ---------- 分区块 ---------- */
.page-faq .faq-block {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  scroll-margin-top: 1.25rem;
  min-width: 0;
}
.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 0.9rem;
  row-gap: 0.2rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 2px solid var(--line);
}
.page-faq .faq-block__no {
  grid-row: span 2;
  font-weight: 700;
  font-size: clamp(2.25rem, 8vw, 4.25rem);
  line-height: 0.78;
  letter-spacing: -0.04em;
  color: var(--panel-2);
}
@supports (-webkit-text-stroke: 1px currentColor) {
  .page-faq .faq-block__no {
    color: transparent;
    -webkit-text-stroke: 1.5px var(--orange);
  }
}
.page-faq .faq-block__title {
  margin: 0;
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
}
.page-faq .faq-block__meta {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--dim);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-q {
  margin-bottom: 0.65rem;
  border: 2px solid var(--line);
  background: var(--panel);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-faq .faq-q:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
}
.page-faq .faq-q__head {
  display: grid;
  grid-template-columns: 2.35rem minmax(0, 1fr) 1.25rem;
  align-items: start;
  gap: 0.7rem;
  width: 100%;
  padding: 1rem;
  border: 0;
  background: transparent;
  color: var(--white);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}
.page-faq .faq-q__no {
  padding-top: 0.28rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}
.page-faq .faq-q__text {
  min-width: 0;
}
.page-faq .faq-q__body {
  padding: 0 1rem 1.1rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}
.page-faq .faq-q__body p {
  max-width: 54ch;
  margin: 0 0 0.7rem;
}
.page-faq .faq-q__body p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-q__body a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue);
}
.page-faq .faq-q__body a:hover,
.page-faq .faq-q__body a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 口径微型条形 ---------- */
.page-faq .faq-bars {
  margin-top: 1.35rem;
  padding: 1rem 1.1rem 1.1rem;
  border: 2px solid var(--line);
  background: var(--ink);
}
.page-faq .faq-bars__cap {
  margin: 0 0 0.9rem;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--dim);
}
.page-faq .faq-bars__row {
  display: grid;
  grid-template-columns: minmax(76px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}
.page-faq .faq-bars__k {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-faq .faq-bars__track {
  display: block;
  height: 12px;
  background: var(--panel-2);
}
.page-faq .faq-bars__fill {
  display: block;
  width: var(--w, 50%);
  height: 100%;
}
.page-faq .faq-bars__fill--blue {
  background: var(--blue);
}
.page-faq .faq-bars__fill--orange {
  background: var(--orange);
}
.page-faq .faq-bars__note {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 1.25rem 0 1.5rem;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 复制模板 ---------- */
.page-faq .faq-template {
  margin-top: 1.35rem;
  border: 2px solid var(--line);
  background: var(--panel);
}
.page-faq .faq-template__head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 2px solid var(--line);
}
.page-faq .faq-template__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--white);
}
.page-faq .faq-template__copy {
  min-height: 44px;
}
.page-faq .faq-template__code {
  margin: 0;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.95;
  color: var(--muted);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ---------- 结尾状态行 ---------- */
.page-faq .faq-status {
  margin: 0;
  padding: 1rem 0 0;
  border-top: 2px solid var(--line);
  font-size: 0.75rem;
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: var(--dim);
}
.page-faq .faq-status a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-status a:hover,
.page-faq .faq-status a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q:hover {
    transform: none;
  }
  .page-faq .faq-index__link {
    transition: none;
  }
}

/* ---------- 平板：索引转为纵列前的中断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__title {
    font-size: clamp(3rem, 8vw, 5.25rem);
  }
  .page-faq .faq-figure {
    margin: 1.5rem 0 1.75rem;
  }
}

/* ---------- 桌面：左索引 / 右答案 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-idx-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: 1.5rem;
  }
  .page-faq .faq-index__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-top: 2px solid var(--line);
  }
  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 2.25rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.5rem;
    padding: 0.7rem 0.6rem 0.7rem 0.7rem;
    border: 0;
    border-left: 2px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: transparent;
    white-space: normal;
  }
  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--orange);
    background: var(--panel);
    color: var(--white);
  }
  .page-faq .faq-q__head {
    grid-template-columns: 2.35rem minmax(0, 1fr) 1.5rem;
    padding: 1.05rem 1.2rem;
  }
  .page-faq .faq-q__body {
    padding: 0 1.2rem 1.2rem;
  }
  .page-faq .faq-figure {
    margin: 1.75rem 0 2rem;
  }
}

/* ---------- 大屏：留出更多呼吸 ---------- */
@media (min-width: 1280px) {
  .page-faq {
    --faq-idx-w: 288px;
  }
  .page-faq .faq-q__body p {
    max-width: 62ch;
  }
}

.page-faq {
  --w: 1rem;
}