.page-faq {
  --faq-paper-line: rgba(43, 47, 54, .16);
  --faq-cut: polygon(0 0, 100% 0, 94% 100%, 0 100%);
}

.page-faq .faq-crumb {
  padding: 16px 0 0;
  font-size: var(--bb-fs-12);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.page-faq .faq-crumb a {
  color: var(--bb-red);
  text-decoration: none;
}

.page-faq .faq-crumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  color: var(--bb-paper);
  padding: clamp(28px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--bb-red);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(1.9rem, 6.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--bb-paper);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: var(--bb-fs-18);
  line-height: 1.75;
  color: rgba(245, 242, 236, .82);
}

.page-faq .faq-hero__copy::after {
  content: "";
  display: block;
  width: 148px;
  height: 6px;
  margin-top: 24px;
  background: linear-gradient(90deg, var(--bb-red), var(--bb-gold) 58%, rgba(201, 162, 39, 0));
  clip-path: var(--faq-cut);
}

.page-faq .faq-hero__media {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero__media .bb-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--bb-line-light);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 91% 100%, 0 100%);
}

.page-faq .faq-hero__media .bb-media__cap {
  display: block;
  margin-top: 10px;
  font-size: var(--bb-fs-12);
  letter-spacing: .12em;
  color: var(--bb-gold-light);
}

/* ---------- 快速动作条 ---------- */

.page-faq .faq-quick {
  margin-top: clamp(28px, 4.5vw, 46px);
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--bb-line-light);
  border: 1px solid var(--bb-line-light);
}

.page-faq .faq-quick__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--bb-board);
}

.page-faq .faq-quick__item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--bb-red);
}

.page-faq .faq-quick__num {
  font-family: var(--bb-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--bb-gold);
}

.page-faq .faq-quick__sym {
  font-size: var(--bb-fs-14);
  font-weight: 700;
  color: var(--bb-paper);
}

.page-faq .faq-quick__act {
  font-size: var(--bb-fs-12);
  line-height: 1.6;
  color: rgba(245, 242, 236, .68);
}

/* ---------- 主体 ---------- */

.page-faq .faq-guide {
  padding: clamp(30px, 6vw, 68px) 0;
}

.page-faq .faq-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: start;
}

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

.page-faq .faq-spy {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-faq .faq-spy .bb-spy__link {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--faq-paper-line);
  font-family: var(--bb-mono);
  font-size: var(--bb-fs-12);
  color: var(--bb-text);
  text-decoration: none;
  background: rgba(245, 242, 236, .7);
  transition: background-color .22s ease, border-color .22s ease, color .22s ease;
}

.page-faq .faq-spy .bb-spy__link:hover,
.page-faq .faq-spy .bb-spy__link.is-active {
  background: var(--bb-red);
  border-color: var(--bb-red);
  color: #fff;
}

.page-faq .faq-guide__tip {
  margin: 14px 0 0;
  font-size: var(--bb-fs-12);
  line-height: 1.7;
  color: rgba(43, 47, 54, .56);
}

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

.page-faq .faq-scene {
  padding-bottom: clamp(26px, 4vw, 46px);
  margin-bottom: clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-paper-line);
}

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

.page-faq .faq-scene__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-faq .faq-scene__badge {
  flex: 0 0 auto;
  padding: 6px 14px 7px;
  background: var(--bb-red);
  color: #fff;
  font-family: var(--bb-mono);
  font-size: 1.15rem;
  line-height: 1;
  clip-path: var(--faq-cut);
}

.page-faq .faq-scene__title {
  margin: 0;
  font-size: clamp(1.25rem, 3.6vw, 2rem);
  font-weight: 800;
  line-height: 1.28;
  color: var(--bb-text);
  overflow-wrap: anywhere;
}

.page-faq .faq-scene__lead {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: var(--bb-fs-18);
  line-height: 1.78;
  color: var(--bb-text);
}

.page-faq .faq-scene__figure {
  margin: 20px 0 0;
  max-width: 560px;
  min-width: 0;
}

.page-faq .faq-scene__figure .bb-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--faq-paper-line);
}

.page-faq .faq-scene__figure .bb-media__cap {
  display: block;
  margin-top: 10px;
  font-size: var(--bb-fs-12);
  letter-spacing: .1em;
  color: rgba(43, 47, 54, .58);
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-acc {
  margin-top: 20px;
  border-top: 1px solid var(--faq-paper-line);
}

.page-faq .faq-acc .bb-accordion__item {
  border-bottom: 1px solid var(--faq-paper-line);
}

.page-faq .faq-acc .bb-accordion__trigger {
  display: block;
  width: 100%;
  padding: 14px 12px 14px 16px;
  border: 0;
  border-left: 3px solid var(--bb-blue);
  background: transparent;
  text-align: left;
  font-family: inherit;
  font-size: .9375rem;
  font-weight: 700;
  color: var(--bb-text);
  cursor: pointer;
  transition: background-color .22s ease, border-color .22s ease;
}

.page-faq .faq-acc .bb-accordion__trigger:hover {
  background: rgba(31, 168, 255, .08);
  border-left-color: var(--bb-red);
}

.page-faq .faq-acc .bb-accordion__trigger[aria-expanded="true"] {
  border-left-color: var(--bb-red);
  background: rgba(224, 43, 60, .07);
}

.page-faq .faq-acc .bb-accordion__panel {
  padding: 4px 16px 18px 19px;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--bb-text);
}

.page-faq .faq-acc .bb-accordion__panel p {
  margin: 0;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.page-faq .faq-steps li::before {
  content: "→";
  flex: 0 0 auto;
  font-family: var(--bb-mono);
  color: var(--bb-red);
}

/* ---------- 联系 ---------- */

.page-faq .faq-help {
  padding: clamp(30px, 6vw, 64px) 0;
  border-top: 1px solid var(--bb-red);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: start;
}

.page-faq .faq-help__title {
  margin: 14px 0 0;
  font-size: clamp(1.4rem, 3.8vw, 2.15rem);
  font-weight: 800;
  line-height: 1.24;
  color: var(--bb-paper);
}

.page-faq .faq-help__text {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: var(--bb-fs-18);
  line-height: 1.78;
  color: rgba(245, 242, 236, .82);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--bb-line-light);
  border: 1px solid var(--bb-line-light);
}

.page-faq .faq-help__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 18px;
  padding: 14px 16px;
  background: var(--bb-ink);
}

.page-faq .faq-help__key {
  font-size: var(--bb-fs-12);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-gold-light);
}

.page-faq .faq-help__value {
  font-family: var(--bb-mono);
  font-size: .9375rem;
  color: var(--bb-paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__note {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--bb-gold);
  font-size: var(--bb-fs-14);
  line-height: 1.75;
  color: rgba(245, 242, 236, .7);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-help__row {
    grid-template-columns: 96px 1fr;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.4fr .85fr;
  }

  .page-faq .faq-quick__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-help__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-guide__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 3vw, 52px);
  }

  .page-faq .faq-guide__aside {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-spy {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
  }

  .page-faq .faq-spy .bb-spy__link {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-spy .bb-spy__link,
  .page-faq .faq-acc .bb-accordion__trigger {
    transition: none;
  }
}