.page-faq {
  --faq-surface: rgba(14, 59, 54, 0.58);
  --faq-surface-deep: rgba(8, 13, 12, 0.5);
  --faq-hair: rgba(143, 163, 155, 0.18);
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -24%;
  right: -18%;
  width: min(760px, 80%);
  height: 152%;
  background: linear-gradient(102deg, rgba(255, 106, 31, 0.13), rgba(23, 224, 210, 0.11) 58%, rgba(23, 224, 210, 0) 100%);
  transform: rotate(-9deg);
  transform-origin: top right;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4.4vw, 52px);
  align-items: start;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 52px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.2vw, 34px);
}

.page-faq .faq-hero__panel {
  padding: clamp(20px, 2.8vw, 30px);
  border-radius: var(--radius);
}

.page-faq .faq-hero__panel-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-dims {
  list-style: none;
  margin: clamp(14px, 2.2vw, 22px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-dims__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num desc";
  column-gap: 12px;
  row-gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-dims__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-dims__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-dims__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-dims__desc {
  grid-area: desc;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  overflow-wrap: break-word;
}

.page-faq .faq-hero__panel-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

/* ===== 问答区块骨架 ===== */
.page-faq .faq-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
  align-items: start;
}

.page-faq .faq-block__main {
  min-width: 0;
}

.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .qa-list--wide {
  max-width: 940px;
}

/* ===== 问答条目 ===== */
.page-faq .qa-item {
  border: 1px solid var(--faq-hair);
  border-left: 3px solid rgba(143, 163, 155, 0.35);
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, var(--faq-surface), var(--faq-surface-deep));
  overflow: hidden;
  transition: border-color 240ms var(--ease), background 240ms var(--ease);
}

.page-faq .qa-item:hover {
  border-left-color: var(--cyan);
}

.page-faq .qa-item[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(160deg, rgba(14, 59, 54, 0.8), rgba(8, 13, 12, 0.62));
}

.page-faq .qa-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  column-gap: 12px;
  padding: 16px clamp(14px, 2.4vw, 20px);
  margin: 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .qa-item__q::marker {
  content: "";
}

.page-faq .qa-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .qa-item__text {
  overflow-wrap: break-word;
}

.page-faq .qa-item__mark {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  margin-top: 5px;
}

.page-faq .qa-item__mark::before,
.page-faq .qa-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--muted);
  transition: transform 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .qa-item__mark::before {
  width: 14px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-faq .qa-item__mark::after {
  width: 1.5px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.page-faq .qa-item[open] .qa-item__mark::before {
  background: var(--cyan);
}

.page-faq .qa-item[open] .qa-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .qa-item__a {
  padding: 0 clamp(16px, 2.6vw, 22px) 18px clamp(32px, 4.6vw, 46px);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa-item__a p {
  margin: 0;
}

.page-faq .qa-item__a p + p {
  margin-top: 10px;
}

/* ===== 检索示例 ===== */
.page-faq .probe {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 11px 14px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: rgba(23, 224, 210, 0.05);
}

.page-faq .probe__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .probe__chip {
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(23, 224, 210, 0.09);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

/* ===== 字段条形比例图 ===== */
.page-faq .bars {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  max-width: 360px;
}

.page-faq .bars__row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.page-faq .bars__label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .bars__track {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(143, 163, 155, 0.16);
  overflow: hidden;
}

.page-faq .bars__fill {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), rgba(23, 224, 210, 0.45));
}

.page-faq .bars__fill--amber {
  background: linear-gradient(90deg, var(--amber), rgba(255, 176, 58, 0.45));
}

/* ===== 右侧配图 ===== */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure__frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-faq .faq-figure__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid rgba(23, 224, 210, 0.42);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ===== 三步操作示意 ===== */
.page-faq .faq-steps__figure {
  margin: clamp(24px, 4vw, 38px) 0 clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-faq .faq-steps__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .steps__item {
  position: relative;
  padding: 20px clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(14, 59, 54, 0.62), rgba(8, 13, 12, 0.5));
}

.page-faq .steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .steps__title {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .steps__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ===== 半场比分看列顺序 ===== */
.page-faq .halves {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  max-width: 900px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .halves__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .halves__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-faq .halves__field {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .halves__note {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ===== 侧栏提示 ===== */
.page-faq .faq-side {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--radius);
  border-left: 3px solid var(--amber);
}

.page-faq .faq-side__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-side__body {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ===== 结尾行动区 ===== */
.page-faq .faq-cta__card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 46px);
  border-radius: var(--radius);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-cta__card h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-cta__card p {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-cta__card .btn {
  margin-top: 22px;
}

.page-faq .faq-cta__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
}

/* ===== 响应式 ===== */
@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(32px, 5vw, 66px);
  }

  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(30px, 4.5vw, 56px);
  }

  .page-faq .faq-block__grid--flip .faq-block__main {
    order: 1;
  }

  .page-faq .faq-block__grid--flip .faq-side {
    order: 2;
  }

  .page-faq .halves__row {
    grid-template-columns: auto minmax(0, 240px) minmax(0, 1fr);
    align-items: baseline;
  }

  .page-faq .halves__note {
    grid-column: 3;
  }
}

@media (min-width: 800px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-faq .steps__item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 100%;
    width: 26px;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), rgba(23, 224, 210, 0));
  }
}

@media (max-width: 519px) {
  .page-faq .qa-item__q {
    column-gap: 9px;
  }

  .page-faq .qa-item__a {
    padding-left: clamp(16px, 6vw, 24px);
  }

  .page-faq .bars__row {
    grid-template-columns: 42px minmax(0, 1fr);
  }
}

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

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