.page-faq {
  --faq-rail: 236px;
  --faq-offset: 104px;
  position: relative;
  display: block;
  padding-bottom: clamp(56px, 9vw, 120px);
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(55, 245, 193, .10), transparent 62%),
    radial-gradient(860px 540px at -8% 16%, rgba(34, 53, 111, .50), transparent 66%);
}

.page-faq .yk-crumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 60px) 0 clamp(64px, 9vw, 120px);
  border-bottom: 1px solid rgba(58, 74, 112, .45);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 880px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 20px;
  max-width: 17ch;
  font-family: var(--yk-font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 68px);
  line-height: 1.06;
  letter-spacing: -.5%;
  color: var(--yk-mist);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.75;
  color: rgba(233, 241, 255, .85);
}

.page-faq .faq-hero__ridge {
  position: absolute;
  inset-inline: 0;
  bottom: -1px;
  z-index: 0;
  width: 100%;
  height: clamp(80px, 13vw, 180px);
  opacity: .8;
  pointer-events: none;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  padding-top: clamp(36px, 5vw, 68px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

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

/* ---------- 左侧分类 ---------- */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--yk-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--yk-haze);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 18px;
  border: 1px solid var(--yk-line);
  border-radius: var(--yk-r4);
  background: rgba(22, 36, 79, .6);
  color: var(--yk-mist);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .2s var(--yk-ease), color .2s var(--yk-ease), background-color .2s var(--yk-ease);
}

.page-faq .faq-chip::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--yk-teal-deep);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--yk-teal);
  background: rgba(55, 245, 193, .09);
  color: var(--yk-teal);
}

.page-faq .faq-rail__aside {
  margin: 20px 0 0;
  padding: 14px 18px;
  border: 1px dashed rgba(58, 74, 112, .85);
  border-radius: var(--yk-r2);
  background: rgba(11, 23, 51, .6);
  font-size: 13px;
  line-height: 1.65;
  color: var(--yk-haze);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-offset);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 7vw, 92px);
}

.page-faq .faq-group__title {
  margin: 12px 0 8px;
  font-family: var(--yk-font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.14;
  letter-spacing: -.5%;
  color: var(--yk-mist);
}

.page-faq .faq-group__intro {
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--yk-haze);
}

/* ---------- 问答卡 ---------- */
.page-faq .faq-card {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid rgba(58, 74, 112, .75);
  border-radius: var(--yk-r3);
  background: linear-gradient(165deg, rgba(22, 36, 79, .9), rgba(11, 23, 51, .94));
  scroll-margin-top: var(--faq-offset);
}

.page-faq .faq-card + .faq-card,
.page-faq .faq-card + .faq-steps,
.page-faq .faq-steps + .faq-card,
.page-faq .faq-figure + .faq-card {
  margin-top: clamp(14px, 2vw, 22px);
}

.page-faq .faq-card__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 12px;
  font-family: var(--yk-font-head);
  font-size: clamp(18px, 1.7vw, 22px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--yk-mist);
}

.page-faq .faq-card__q::before {
  content: "?";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  margin-top: 3px;
  border: 1px solid rgba(55, 245, 193, .5);
  border-radius: 50%;
  background: rgba(55, 245, 193, .12);
  color: var(--yk-teal);
  font-family: var(--yk-font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-card__a {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
  color: rgba(233, 241, 255, .86);
}

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

.page-faq .faq-card__list {
  display: grid;
  gap: 11px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.68;
  color: rgba(233, 241, 255, .8);
}

.page-faq .faq-card__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .64em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--yk-teal-deep);
}

.page-faq .faq-card__list strong {
  color: var(--yk-mist);
  font-weight: 700;
}

.page-faq .faq-link {
  color: var(--yk-teal);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 245, 193, .45);
}

.page-faq .faq-link:hover {
  border-bottom-color: var(--yk-teal);
}

.page-faq .faq-mail {
  font-family: var(--yk-font-mono);
  font-size: .95em;
  color: var(--yk-amber);
  word-break: break-all;
}

/* ---------- 琥珀金协助卡 ---------- */
.page-faq .faq-card--help {
  border-color: rgba(245, 178, 60, .55);
  background: linear-gradient(165deg, rgba(245, 178, 60, .13), rgba(11, 23, 51, .95));
  box-shadow: 0 18px 46px -28px rgba(245, 178, 60, .55);
}

.page-faq .faq-card--help .faq-card__q::before {
  content: "!";
  border-color: rgba(245, 178, 60, .55);
  background: rgba(245, 178, 60, .14);
  color: var(--yk-amber);
}

.page-faq .faq-card--help .faq-link {
  color: var(--yk-amber);
  border-bottom-color: rgba(245, 178, 60, .45);
}

.page-faq .faq-card--help .faq-link:hover {
  border-bottom-color: var(--yk-amber);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
  overflow: hidden;
  border: 1px solid rgba(58, 74, 112, .7);
  border-radius: var(--yk-r3);
  background: var(--yk-indigo);
}

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

/* ---------- 三步操作条 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 20px;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(55, 245, 193, .3);
  border-radius: var(--yk-r3);
  background: linear-gradient(120deg, rgba(18, 169, 138, .14), rgba(11, 23, 51, .92));
}

.page-faq .faq-step {
  position: relative;
  display: block;
  padding: 0;
  color: inherit;
  text-decoration: none;
}

.page-faq .faq-step__no {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-bottom: 14px;
  border: 1px solid var(--yk-teal);
  border-radius: 50%;
  background: rgba(5, 10, 24, .9);
  color: var(--yk-teal);
  font-family: var(--yk-font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .faq-step__t {
  display: block;
  margin-bottom: 6px;
  font-family: var(--yk-font-head);
  font-size: 16px;
  font-weight: 800;
  color: var(--yk-mist);
}

.page-faq .faq-step__d {
  display: block;
  font-size: 14px;
  line-height: 1.62;
  color: var(--yk-haze);
}

.page-faq .faq-step:hover .faq-step__t {
  color: var(--yk-teal);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: var(--faq-offset);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-chip {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-card:nth-of-type(even) {
    margin-left: clamp(28px, 5vw, 72px);
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-faq .faq-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 15px;
    left: 42px;
    right: -14px;
    height: 1px;
    background: linear-gradient(90deg, rgba(55, 245, 193, .6), rgba(55, 245, 193, .06));
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 620px) {
  .page-faq .faq-hero {
    padding-bottom: clamp(48px, 14vw, 72px);
  }

  .page-faq .faq-hero__title {
    max-width: none;
    font-size: clamp(28px, 8.4vw, 40px);
  }

  .page-faq .faq-card__q {
    font-size: 17px;
    gap: 10px;
  }

  .page-faq .faq-rail__aside {
    font-size: 12.5px;
  }

  .page-faq .faq-steps {
    padding: 18px;
  }
}