.page-faq {
  --faq-gap: clamp(2.5rem, 6vw, 4.5rem);
  --faq-rule: rgba(28, 110, 154, 0.55);
  --faq-rule-soft: rgba(127, 192, 220, 0.2);
  --faq-index-w: 168px;
  background:
    radial-gradient(120% 55% at 84% -8%, rgba(28, 110, 154, 0.3), transparent 62%),
    var(--c-void);
  color: var(--c-paper);
  font-family: var(--font-body);
  line-height: 1.75;
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(4rem, 9vw, 7.5rem);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.4rem);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 2.6rem) 0 clamp(1.8rem, 4.5vw, 3rem);
  border-bottom: 1px solid var(--faq-rule);
  margin-bottom: var(--faq-gap);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -58%;
  right: -14%;
  width: min(54%, 460px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(140deg, rgba(28, 110, 154, 0.45), rgba(232, 88, 28, 0.09) 70%, transparent 92%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
}

.page-faq .faq-hero .display-title {
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(2.1rem, 7.2vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -0.005em;
  margin: 0.7rem 0 1.1rem;
  max-width: 20ch;
  color: var(--c-paper);
}

.page-faq .faq-hero__lede {
  max-width: 48ch;
  margin: 0 0 1.6rem;
  font-size: clamp(0.96rem, 2.2vw, 1.05rem);
  color: rgba(241, 247, 250, 0.76);
}

.page-faq .faq-hero__strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--c-mist);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.8rem, 5vw, 3rem);
}

@media (min-width: 880px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: start;
  }
}

/* ---------- 左侧索引列 ---------- */
.page-faq .faq-index {
  border-left: 1px solid var(--faq-rule);
  padding-left: 1.05rem;
}

@media (min-width: 880px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--topbar-h) + 2.5rem);
  }
}

.page-faq .faq-index__caption {
  margin: 0 0 0.85rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-lava);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.2rem;
}

@media (min-width: 880px) {
  .page-faq .faq-index__list {
    display: block;
  }
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.32rem 0;
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--c-lava-soft);
  border-bottom-color: var(--c-lava-soft);
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--c-lava);
  outline-offset: 3px;
}

.page-faq .faq-index__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--c-lava);
  font-variant-numeric: tabular-nums;
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-q {
  position: relative;
  min-width: 0;
  border: 1px solid var(--faq-rule);
  border-left: 3px solid var(--c-main);
  background: linear-gradient(180deg, rgba(26, 35, 42, 0.92) 0%, rgba(13, 18, 22, 0.92) 100%);
  box-shadow: 10px 10px 0 rgba(28, 110, 154, 0.14);
  scroll-margin-top: calc(var(--topbar-h) + 3rem);
  transition: border-left-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-q[open] {
  border-left-color: var(--c-lava);
  box-shadow: 10px 10px 0 rgba(232, 88, 28, 0.16);
}

.page-faq .faq-q__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 1.25rem clamp(1rem, 3vw, 1.75rem);
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

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

.page-faq .faq-q__head:hover {
  background: rgba(28, 110, 154, 0.14);
}

.page-faq .faq-q__head:focus-visible {
  outline: 2px solid var(--c-lava);
  outline-offset: -2px;
}

.page-faq .faq-q__no {
  flex: none;
  padding-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-lava);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q__title {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 3.4vw, 1.6rem);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: 0.012em;
  color: var(--c-paper);
  overflow-wrap: break-word;
}

.page-faq .faq-q__mark {
  flex: none;
  position: relative;
  width: 14px;
  height: 14px;
  align-self: center;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--c-mist);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-q__mark::after {
  transform: rotate(90deg);
}

.page-faq .faq-q[open] .faq-q__mark::before {
  background: var(--c-lava);
}

.page-faq .faq-q[open] .faq-q__mark::after {
  background: var(--c-lava);
  transform: rotate(0deg);
}

.page-faq .faq-q__body {
  margin-top: 0.2rem;
  padding: 1.25rem clamp(1rem, 3vw, 1.75rem) clamp(1.3rem, 3.5vw, 2rem);
  border-top: 1px solid var(--faq-rule-soft);
  color: rgba(241, 247, 250, 0.8);
  overflow-wrap: break-word;
}

.page-faq .faq-q__body > p {
  max-width: 64ch;
  margin: 0 0 1rem;
}

.page-faq .faq-q__body > p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-strong {
  font-family: var(--font-mono);
  color: var(--c-lava-soft);
  font-variant-numeric: tabular-nums;
}

/* 行内小索引 —— 从问题跳到功能页 */
.page-faq .faq-q__link {
  display: flex !important;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  max-width: 64ch;
  margin-top: 1.4rem !important;
  padding-top: 0.85rem;
  border-top: 1px solid var(--faq-rule-soft);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-faq .faq-q__link a {
  color: var(--c-lava-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 154, 92, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-q__link a:hover,
.page-faq .faq-q__link a:focus-visible {
  color: var(--c-lava);
  border-bottom-color: var(--c-lava);
}

.page-faq .faq-q__link a:focus-visible {
  outline: 2px solid var(--c-lava);
  outline-offset: 3px;
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-path {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
}

@media (min-width: 760px) {
  .page-faq .faq-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

.page-faq .faq-path__step {
  position: relative;
  padding: 1.05rem 1rem 1.15rem;
  background: rgba(18, 60, 85, 0.32);
  border: 1px solid var(--faq-rule-soft);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-path__step:hover,
.page-faq .faq-path__step:focus-within {
  border-color: var(--c-lava);
  background: rgba(18, 60, 85, 0.56);
  transform: translateY(-3px);
}

.page-faq .faq-path__num {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 600;
  line-height: 1;
  color: var(--c-lava);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-path__step:hover .faq-path__num {
  color: var(--c-lava-soft);
}

.page-faq .faq-path__name {
  margin: 0 0 0.45rem;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.42;
  color: var(--c-paper);
}

.page-faq .faq-path__step p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.68;
  color: rgba(241, 247, 250, 0.68);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 1.6rem 0 0;
  padding: 0.5rem;
  border: 1px solid var(--faq-rule-soft);
  background: rgba(13, 18, 22, 0.62);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  background: linear-gradient(140deg, rgba(28, 110, 154, 0.34), rgba(10, 31, 43, 0.92));
}

.page-faq .faq-figure figcaption {
  margin-top: 0.5rem;
  padding: 0 0.3rem 0.15rem;
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 更新窗口时间条 ---------- */
.page-faq .faq-timeline {
  display: block;
  width: 100%;
  height: auto;
  margin: 1.6rem 0 0;
  padding: 0.7rem;
  border: 1px solid var(--faq-rule-soft);
  background: rgba(18, 60, 85, 0.3);
}

.page-faq .faq-timeline__rule {
  stroke: rgba(127, 192, 220, 0.38);
  stroke-width: 1;
  stroke-dasharray: 4 5;
}

.page-faq .faq-timeline__win {
  fill: #E8581C;
  opacity: 0.88;
}

.page-faq .faq-timeline__win--wide {
  fill: #FF9A5C;
}

.page-faq .faq-timeline__kick {
  stroke: rgba(241, 247, 250, 0.55);
  stroke-width: 1.5;
}

.page-faq .faq-timeline__label {
  fill: #F1F7FA;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-faq .faq-timeline__val {
  fill: #FF9A5C;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
}

.page-faq .faq-timeline__kicktext {
  fill: #7FC0DC;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.06em;
}

/* ---------- 轮次范围 ---------- */
.page-faq .faq-range {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
}

.page-faq .faq-range__cell {
  padding: 0.85rem 0.4rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-mist);
  background: rgba(26, 35, 42, 0.78);
  border: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-range__cell--now {
  color: var(--c-void);
  background: var(--c-lava);
  border-color: var(--c-lava);
  font-weight: 600;
}

/* ---------- 五个维度 ---------- */
.page-faq .faq-dims {
  margin: 1.5rem 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-rule-soft);
}

.page-faq .faq-dims__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--faq-rule-soft);
}

@media (min-width: 660px) {
  .page-faq .faq-dims__row {
    grid-template-columns: 9rem minmax(0, 1fr);
    gap: 1.25rem;
    align-items: baseline;
  }
}

.page-faq .faq-dims dt {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-lava-soft);
}

.page-faq .faq-dims dd {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.72;
  color: rgba(241, 247, 250, 0.74);
}

/* ---------- 细线要点列 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 1.7rem;
  font-size: 0.89rem;
  line-height: 1.7;
  color: rgba(241, 247, 250, 0.74);
}

.page-faq .faq-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 13px;
  height: 1.5px;
  background: var(--c-lava);
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 619px) {
  .page-faq .faq-q {
    box-shadow: 5px 5px 0 rgba(28, 110, 154, 0.16);
  }

  .page-faq .faq-q[open] {
    box-shadow: 5px 5px 0 rgba(232, 88, 28, 0.18);
  }

  .page-faq .faq-q__head {
    gap: 0.6rem;
  }

  .page-faq .faq-hero__strip {
    gap: 0.45rem 0.9rem;
    font-size: 0.72rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q__head,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-path__step,
  .page-faq .faq-index__list a,
  .page-faq .breadcrumb a {
    transition: none;
  }

  .page-faq .faq-path__step:hover,
  .page-faq .faq-path__step:focus-within {
    transform: none;
  }
}