.page-faq {
  --faq-clip: 24px;
  --faq-section-gap: clamp(48px, 8vw, 104px);
  --faq-navy-raised: #143156;
  background: var(--color-deep);
  color: var(--color-paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(40px, 6vw, 80px) 0 clamp(48px, 7vw, 96px);
  overflow: hidden;
}

.page-faq .faq-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--color-silver);
}

.page-faq .faq-breadcrumb__sep {
  color: var(--color-neon);
}

.page-faq .faq-breadcrumb__current {
  color: var(--color-paper);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--color-neon);
  text-transform: uppercase;
}

.page-faq .faq-hero__kicker::before {
  content: "";
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--color-neon);
}

.page-faq .faq-hero__title {
  margin: 0 0 24px;
  font-family: var(--font-heading);
  font-size: clamp(38px, 7vw, 72px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--color-paper);
}

.page-faq .faq-hero__desc {
  max-width: 640px;
  margin: 0 0 40px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-silver);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .faq-hero__stat {
  padding: 12px 16px;
  border-left: 2px solid rgba(57, 255, 20, 0.75);
  background: linear-gradient(90deg, rgba(57, 255, 20, 0.08), transparent);
}

.page-faq .faq-hero__stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: var(--color-neon);
}

.page-faq .faq-hero__stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-silver);
}

.page-faq .faq-hero__trust {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px dashed rgba(192, 192, 192, 0.3);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--color-silver);
}

.page-faq .faq-hero__trust strong {
  font-weight: 500;
  color: var(--color-neon);
}

.page-faq .faq-hero__art {
  display: none;
}

.page-faq .faq-hero__svg {
  display: block;
  width: 100%;
  height: auto;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    align-items: center;
  }

  .page-faq .faq-hero__art {
    display: block;
    padding: 16px;
    background-image:
      linear-gradient(rgba(192, 192, 192, 0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(192, 192, 192, 0.06) 1px, transparent 1px);
    background-size: 56px 56px;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ===== 快速索引 ===== */
.page-faq .faq-index {
  padding: clamp(24px, 4vw, 56px) 0 clamp(48px, 8vw, 96px);
  border-bottom: 1px solid rgba(192, 192, 192, 0.2);
}

.page-faq .faq-index__tagline {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--color-silver);
}

.page-faq .faq-index__tag {
  color: var(--color-neon);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 16px;
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 12px;
  padding: 20px 18px;
  background: var(--color-navy);
  border: 1px solid rgba(192, 192, 192, 0.22);
  clip-path: polygon(0 0, calc(100% - var(--faq-clip)) 0, 100% var(--faq-clip), 100% 100%, 0 100%);
  color: var(--color-paper);
  text-decoration: none;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  background: var(--faq-navy-raised);
  border-color: rgba(57, 255, 20, 0.75);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-data);
  font-size: 22px;
  color: var(--color-neon);
}

.page-faq .faq-index__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-index__title {
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1.2;
}

.page-faq .faq-index__desc {
  font-size: 13px;
  color: var(--color-silver);
}

.page-faq .faq-index__arrow {
  font-family: var(--font-data);
  color: var(--color-neon);
  text-align: right;
}

@media (min-width: 900px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-index__item--two {
    transform: translateY(16px);
  }

  .page-faq .faq-index__item--three {
    transform: translateY(32px);
  }

  .page-faq .faq-index__item--four {
    transform: translateY(48px);
  }
}

/* ===== 问答分区 ===== */
.page-faq .faq-section {
  padding-bottom: var(--faq-section-gap);
}

.page-faq .faq-section__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-faq .faq-section__head {
  position: relative;
  padding: 24px;
  clip-path: polygon(0 0, calc(100% - var(--faq-clip)) 0, 100% var(--faq-clip), 100% 100%, 0 100%);
}

.page-faq .faq-section__head--teal {
  background: var(--color-teal);
  border: 1px solid rgba(57, 255, 20, 0.2);
}

.page-faq .faq-section__head--indigo {
  background: var(--color-indigo);
  border: 1px solid rgba(192, 192, 192, 0.2);
}

.page-faq .faq-section__head--deep {
  background: linear-gradient(135deg, #1a3457, #0d203d);
  border: 1px solid rgba(192, 192, 192, 0.2);
}

.page-faq .faq-section__head--wine {
  background: var(--color-wine);
  border: 1px solid rgba(57, 255, 20, 0.18);
}

.page-faq .faq-section__eyebrow {
  margin-bottom: 16px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--color-neon);
}

.page-faq .faq-section__title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15;
  color: var(--color-paper);
}

.page-faq .faq-section__intro {
  max-width: 42em;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 244, 248, 0.88);
}

.page-faq .faq-section__content {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-content: start;
}

.page-faq .faq-section__list {
  display: grid;
  gap: 14px;
  align-content: start;
}

@media (min-width: 900px) {
  .page-faq .faq-section__grid {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .page-faq .faq-section--reverse .faq-section__grid {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .page-faq .faq-section--reverse .faq-section__head {
    grid-column: 2;
    grid-row: 1;
  }

  .page-faq .faq-section--reverse .faq-section__content {
    grid-column: 1;
    grid-row: 1;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-section--data .faq-section__content {
    grid-template-columns: minmax(0, 1fr) 420px;
  }

  .page-faq .faq-section--sub .faq-section__content {
    grid-template-columns: 420px minmax(0, 1fr);
  }

  .page-faq .faq-section--sub .faq-media {
    grid-column: 1;
    grid-row: 1;
  }

  .page-faq .faq-section--sub .faq-section__list {
    grid-column: 2;
    grid-row: 1;
  }
}

/* ===== 手风琴面板 ===== */
.page-faq .faq-item {
  background: var(--color-navy);
  border: 1px solid rgba(192, 192, 192, 0.26);
  clip-path: polygon(0 0, calc(100% - var(--faq-clip)) 0, 100% var(--faq-clip), 100% 100%, 0 100%);
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-item[open],
.page-faq .faq-item:hover {
  background: var(--faq-navy-raised);
  border-color: rgba(57, 255, 20, 0.55);
}

.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 34px;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

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

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--color-neon);
  outline-offset: -4px;
}

.page-faq .faq-item__num {
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--color-neon);
}

.page-faq .faq-item__question {
  font-family: var(--font-heading);
  font-size: 20px;
  line-height: 1.3;
  color: var(--color-paper);
}

.page-faq .faq-item__arrow {
  position: relative;
  justify-self: end;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(192, 192, 192, 0.35);
  transition: border-color 0.25s var(--ease);
}

.page-faq .faq-item[open] .faq-item__arrow {
  border-color: rgba(57, 255, 20, 0.75);
}

.page-faq .faq-item__arrow::before {
  content: "→";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-size: 16px;
  color: var(--color-neon);
  transition: transform 0.25s var(--ease);
}

.page-faq .faq-item[open] .faq-item__arrow::before {
  transform: rotate(90deg);
}

.page-faq .faq-item__answer {
  padding: 0 20px 24px;
  font-size: 15px;
  line-height: 1.85;
  color: #DCE4F0;
}

.page-faq .faq-item__answer p {
  margin: 0 0 14px;
}

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

.page-faq .faq-item__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed rgba(192, 192, 192, 0.3);
  font-size: 13px;
  color: var(--color-silver);
}

.page-faq .faq-item__action {
  color: var(--color-silver);
}

@media (min-width: 900px) {
  .page-faq .faq-item__summary {
    padding: 22px 24px;
  }

  .page-faq .faq-item__answer {
    padding: 0 24px 26px 78px;
  }
}

/* ===== 步骤列表 ===== */
.page-faq .faq-steps {
  counter-reset: faq-step;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: faq-step;
  position: relative;
  padding-left: 56px;
  margin-bottom: 10px;
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(192, 192, 192, 0.3);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--color-neon);
}

/* ===== 数据提示条 ===== */
.page-faq .faq-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
  padding: 14px 20px;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--color-paper);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-note--sync {
  background: rgba(15, 76, 92, 0.9);
}

.page-faq .faq-note--export {
  background: rgba(28, 47, 81, 0.95);
}

.page-faq .faq-note__label {
  font-size: 12px;
  color: var(--color-neon);
}

.page-faq .faq-note__sep {
  color: var(--color-silver);
}

.page-faq .faq-note__time {
  font-size: 18px;
  font-weight: 700;
}

/* ===== 图片区 ===== */
.page-faq .faq-media {
  margin: 0;
  align-self: start;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  background: var(--color-navy);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-media__caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-silver);
}

/* ===== 联系区 ===== */
.page-faq .faq-contact {
  padding: clamp(24px, 4vw, 56px) 0 clamp(48px, 8vw, 96px);
}

.page-faq .faq-contact__panel {
  position: relative;
  padding: clamp(24px, 4vw, 48px);
  background: linear-gradient(135deg, #101f34, #0a1931);
  border: 1px solid rgba(192, 192, 192, 0.22);
  clip-path: polygon(0 0, calc(100% - 40px) 0, 100% 40px, 100% 100%, 0 100%);
}

.page-faq .faq-contact__inner {
  display: grid;
  gap: 32px;
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3vw, 36px);
  color: var(--color-paper);
}

.page-faq .faq-contact__desc {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-silver);
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 14px;
  color: #E6EDF6;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 28px;
}

.page-faq .faq-contact__list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-neon);
}

.page-faq .faq-contact__note {
  margin: 0 0 24px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-silver);
}

.page-faq .faq-contact__details {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px dashed rgba(192, 192, 192, 0.4);
}

.page-faq .faq-contact__details summary {
  font-family: var(--font-data);
  font-size: 14px;
  color: var(--color-neon);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-contact__details summary:focus-visible {
  outline: 2px solid var(--color-neon);
  outline-offset: 4px;
}

.page-faq .faq-contact__details p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-silver);
}

.page-faq .faq-contact__meta {
  margin: 24px 0 0;
  font-family: var(--font-data);
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--color-silver);
}

@media (min-width: 900px) {
  .page-faq .faq-contact__inner {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.6fr);
  }

  .page-faq .faq-contact__aside {
    padding-top: 8px;
  }
}

/* ===== 相关导航 ===== */
.page-faq .faq-related {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-related__label {
  margin-bottom: 16px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--color-silver);
}

.page-faq .faq-related__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-related__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid rgba(192, 192, 192, 0.3);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  font-size: 14px;
  color: var(--color-paper);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-related__link:hover,
.page-faq .faq-related__link:focus-visible {
  border-color: var(--color-neon);
  color: var(--color-neon);
  background-color: rgba(57, 255, 20, 0.06);
  outline: none;
}