.page-faq {
  --faq-ink: #0B1424;
  --faq-ink-soft: rgba(11, 20, 36, 0.78);
  --faq-line-dark: rgba(11, 20, 36, 0.14);
  --faq-line-light: rgba(141, 163, 178, 0.26);
  --faq-card-bg: rgba(255, 255, 255, 0.64);
  --faq-cyan-glow: rgba(31, 224, 200, 0.16);
  background: var(--bo-deep);
  color: var(--bo-white);
  font-family: var(--bo-font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 46px) 0 clamp(48px, 8vw, 92px);
  background:
    radial-gradient(120% 90% at 88% 0%, var(--faq-cyan-glow), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(30, 127, 99, 0.26), transparent 66%),
    var(--bo-deep);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 6%;
  bottom: 4%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(31, 224, 200, 0.34), transparent);
  opacity: 0.35;
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 5vw, 44px);
  align-items: start;
}

.page-faq .faq-hero__kicker {
  margin: clamp(18px, 3vw, 28px) 0 0;
  color: var(--bo-cyan);
  letter-spacing: 0.12em;
  font-size: 12px;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  font-family: var(--bo-font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  color: var(--bo-white);
  max-width: 15em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(247, 251, 255, 0.78);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.page-faq .faq-jump {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--bo-radius-pill);
  border: 1px solid var(--faq-line-light);
  background: rgba(31, 224, 200, 0.07);
  color: rgba(247, 251, 255, 0.9);
  font-size: 13px;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: var(--bo-cyan);
  border-color: var(--bo-cyan);
  color: var(--bo-deep);
}

/* ---------- 路径示意卡 ---------- */
.page-faq .faq-path {
  background: var(--bo-ink);
  border: 1px solid var(--faq-line-light);
  border-radius: var(--bo-radius-xl);
  box-shadow: var(--bo-shadow-card);
  overflow: hidden;
}

.page-faq .faq-path__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  border-bottom: 1px solid var(--faq-line-light);
}

.page-faq .faq-path__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

.page-faq .faq-path__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6, 28, 46, 0.7));
  pointer-events: none;
}

.page-faq .faq-path__body {
  padding: clamp(18px, 3vw, 26px);
}

.page-faq .faq-path__kicker {
  margin: 0;
  font-family: var(--bo-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--bo-cyan);
  text-transform: uppercase;
}

.page-faq .faq-path__title {
  margin: 8px 0 18px;
  font-family: var(--bo-font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--bo-white);
}

.page-faq .faq-lane {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 10px 12px;
  border-radius: var(--bo-radius-md);
  border: 1px dashed var(--faq-line-light);
}

.page-faq .faq-lane + .faq-lane {
  margin-top: 10px;
}

.page-faq .faq-lane--new {
  border-style: solid;
  border-color: rgba(31, 224, 200, 0.45);
  background: rgba(31, 224, 200, 0.08);
}

.page-faq .faq-lane__label {
  font-family: var(--bo-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--bo-fog);
  flex: 0 0 auto;
}

.page-faq .faq-lane--new .faq-lane__label {
  color: var(--bo-cyan);
}

.page-faq .faq-lane__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-lane__steps li {
  position: relative;
  padding: 5px 11px;
  border-radius: var(--bo-radius-pill);
  border: 1px solid var(--faq-line-light);
  font-size: 12.5px;
  line-height: 1.4;
  color: rgba(247, 251, 255, 0.74);
  background: rgba(6, 28, 46, 0.6);
}

.page-faq .faq-lane__steps li + li::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 50%;
  width: 5px;
  height: 5px;
  border-right: 1.5px solid var(--bo-fog);
  border-top: 1.5px solid var(--bo-fog);
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-lane--new .faq-lane__steps li {
  background: var(--bo-cyan);
  border-color: transparent;
  color: var(--bo-deep);
  font-weight: 700;
}

.page-faq .faq-path__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--bo-fog);
}

/* ---------- 正文问答区 ---------- */
.page-faq .faq-body {
  background: var(--bo-paper);
  color: var(--faq-ink);
  padding: clamp(34px, 6vw, 76px) 0 clamp(44px, 7vw, 88px);
  border-radius: var(--bo-radius-xl) var(--bo-radius-xl) 0 0;
  margin-top: calc(clamp(34px, 6vw, 76px) * -0.28);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

/* 索引目录 */
.page-faq .faq-index {
  min-width: 0;
}

.page-faq .faq-index__caption {
  margin: 0 0 10px;
  font-family: var(--bo-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(11, 20, 36, 0.5);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__list li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--bo-radius-pill);
  border: 1px solid var(--faq-line-dark);
  background: rgba(255, 255, 255, 0.5);
  color: var(--faq-ink-soft);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--bo-turf);
  letter-spacing: 0.06em;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: var(--bo-turf);
  color: var(--faq-ink);
}

.page-faq .faq-index__link[aria-current="true"] {
  background: var(--faq-ink);
  border-color: var(--faq-ink);
  color: var(--bo-white);
}

.page-faq .faq-index__link[aria-current="true"] .faq-index__num {
  color: var(--bo-cyan);
}

/* 问答分组 */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 58px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 2px solid rgba(11, 20, 36, 0.14);
}

.page-faq .faq-group__num {
  font-size: clamp(26px, 4vw, 38px);
  line-height: 0.9;
  font-weight: 600;
  color: var(--bo-turf);
  flex: 0 0 auto;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--bo-font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--faq-ink);
}

.page-faq .faq-group__sub {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(11, 20, 36, 0.62);
}

/* 手风琴 */
.page-faq .faq-item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-line-dark);
  border-radius: var(--bo-radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(11, 20, 36, 0.28);
}

.page-faq .faq-item[open] {
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--bo-turf);
  box-shadow: 0 20px 40px -34px rgba(2, 10, 20, 0.9);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--faq-ink);
  transition: color 0.2s ease;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--bo-turf);
  outline-offset: -2px;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  border: 1.5px solid rgba(11, 20, 36, 0.35);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__icon {
  border-color: var(--bo-turf);
  background: rgba(30, 127, 99, 0.12);
}

.page-faq .faq-item__icon::before {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1.5px;
  background: var(--faq-ink);
  transform: translateY(-50%);
}

.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 5px;
  bottom: 5px;
  left: 50%;
  width: 1.5px;
  background: var(--faq-ink);
  transform: translateX(-50%);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__a {
  padding: 0 16px 18px 50px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-item__a a {
  color: var(--bo-turf);
  text-underline-offset: 3px;
  font-weight: 600;
}

.page-faq .faq-item__a .bo-tag {
  display: inline-block;
  margin: 0 2px;
  vertical-align: baseline;
}

.page-faq .faq-next {
  margin: 16px 0 0;
  font-size: 13.5px;
  color: rgba(11, 20, 36, 0.6);
}

.page-faq .faq-next a {
  color: var(--bo-turf);
  font-weight: 600;
  text-underline-offset: 3px;
}

/* 记录配图 */
.page-faq .faq-figure {
  margin: 0 0 18px;
  border-radius: var(--bo-radius-lg);
  border: 1px solid var(--faq-line-dark);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(11, 20, 36, 0.6);
  border-top: 1px solid var(--faq-line-dark);
}

/* ---------- 底部入口区 ---------- */
.page-faq .faq-more {
  background:
    radial-gradient(100% 80% at 90% 0%, var(--faq-cyan-glow), transparent 60%),
    var(--bo-ink);
  color: var(--bo-white);
  padding: clamp(36px, 6vw, 74px) 0 clamp(40px, 6vw, 70px);
  border-radius: var(--bo-radius-xl) var(--bo-radius-xl) 0 0;
}

.page-faq .faq-more__kicker {
  margin: 0;
  color: var(--bo-cyan);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .faq-more__title {
  margin: 10px 0 0;
  font-family: var(--bo-font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--bo-white);
}

.page-faq .faq-more__lead {
  margin: 12px 0 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 251, 255, 0.72);
}

.page-faq .faq-more__grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.page-faq .faq-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border-radius: var(--bo-radius-lg);
  border: 1px solid var(--faq-line-light);
  background: rgba(6, 28, 46, 0.7);
  color: var(--bo-white);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--bo-cyan);
  background: rgba(31, 224, 200, 0.1);
}

.page-faq .faq-link__tag {
  font-family: var(--bo-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--bo-cyan);
}

.page-faq .faq-link__title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--bo-white);
}

.page-faq .faq-link__arrow {
  font-family: var(--bo-font-mono);
  font-size: 16px;
  color: var(--bo-hot);
}

.page-faq .faq-contact {
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--bo-radius-lg);
  border: 1px dashed var(--faq-line-light);
}

.page-faq .faq-contact__label {
  margin: 0 0 12px;
  font-family: var(--bo-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--bo-fog);
  text-transform: uppercase;
}

.page-faq .faq-contact__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  margin: 0;
}

.page-faq .faq-contact__row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
}

.page-faq .faq-contact__row .bo-contact-row__label {
  font-size: 12.5px;
  color: var(--bo-fog);
}

.page-faq .faq-contact__row .bo-contact-row__value {
  margin: 0;
  font-family: var(--bo-font-mono);
  font-size: 14.5px;
  color: var(--bo-white);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--bo-fog);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-item summary {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq .faq-item__a {
    padding: 0 22px 20px 54px;
    font-size: 15px;
  }

  .page-faq .faq-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }

  .page-faq .faq-hero__intro {
    grid-column: 1 / span 6;
  }

  .page-faq .faq-path {
    grid-column: 8 / span 5;
    margin-top: 8px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    border-radius: var(--bo-radius-xl);
    margin-top: 0;
    padding-top: clamp(48px, 6vw, 82px);
  }

  .page-faq .faq-body__grid {
    grid-template-columns: minmax(190px, 0.86fr) minmax(0, 2.9fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bo-header-h) + 26px);
  }

  .page-faq .faq-index__caption {
    display: block;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 4px;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--bo-radius-md);
    border-color: transparent;
    background: transparent;
    white-space: normal;
    border-left: 3px solid rgba(11, 20, 36, 0.16);
  }

  .page-faq .faq-index__link:hover {
    background: rgba(255, 255, 255, 0.6);
  }

  .page-faq .faq-index__link[aria-current="true"] {
    border-left-color: var(--bo-cyan);
    background: var(--faq-ink);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-more__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-item,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-index__link,
  .page-faq .faq-link {
    transition: none;
  }

  .page-faq .faq-link:hover,
  .page-faq .faq-link:focus-visible {
    transform: none;
  }
}