/* ============ 问答中心 · 页面专属样式（作用域 .page-faq） ============ */

.page-faq {
  --faq-gap: clamp(20px, 3.2vw, 40px);
  display: block;
}

.page-faq section[id] {
  scroll-margin-top: 96px;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: 4px;
}

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

.page-faq .sb-breadcrumb a {
  color: var(--sb-stone);
  text-decoration: none;
}

.page-faq .sb-breadcrumb a:hover,
.page-faq .sb-breadcrumb a:focus-visible {
  color: var(--sb-orange);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--sb-warm);
  padding-block: clamp(24px, 4vw, 52px) clamp(30px, 5vw, 62px);
}

.page-faq .faq-hero__block {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(56%, 740px);
  background: linear-gradient(158deg, var(--sb-blue) 6%, var(--sb-night) 82%);
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-hero__text {
  max-width: 620px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(29px, 4.6vw, 52px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--sb-blue);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--sb-ink);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--sb-line-strong);
  border-radius: var(--sb-r);
  background: var(--sb-paper);
  box-shadow: -12px 14px 0 rgba(11, 23, 41, .26);
}

.page-faq .faq-hero__figure .sb-figure__media {
  display: block;
  overflow: hidden;
  border-radius: calc(var(--sb-r) - 8px);
  background: var(--sb-warm);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }
}

@media (max-width: 899px) {
  .page-faq .faq-hero__block {
    top: auto;
    width: 100%;
    height: 42%;
    clip-path: polygon(0 26%, 100% 0, 100% 100%, 0 100%);
  }
}

/* ---------- 分组快速跳转 ---------- */
.page-faq .faq-index {
  background: var(--sb-blue);
  border-top: 3px solid var(--sb-orange);
}

.page-faq .faq-index__inner {
  display: flex;
  gap: 8px;
  padding-block: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-index a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid rgba(244, 237, 226, .22);
  border-radius: 999px;
  color: var(--sb-warm);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .18s var(--sb-ease), border-color .18s var(--sb-ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: rgba(242, 98, 42, .2);
  border-color: var(--sb-orange);
}

.page-faq .faq-index .sb-mono {
  font-size: 11.5px;
  color: var(--sb-amber);
}

/* ---------- 分组标题条 ---------- */
.page-faq .faq-group {
  padding-block: clamp(36px, 6vw, 74px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 13px 20px;
  margin-bottom: clamp(18px, 2.8vw, 30px);
  border-radius: 10px;
  background: var(--sb-clay);
  box-shadow: 7px 7px 0 rgba(16, 35, 63, .12);
}

.page-faq .faq-group__idx {
  padding-right: 14px;
  border-right: 1px solid rgba(255, 255, 255, .34);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .76);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: #fff;
}

.page-faq .faq-group__note {
  flex: 1 1 220px;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .84);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

@media (min-width: 800px) {
  .page-faq .faq-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 18px;
    align-items: start;
  }

  .page-faq .faq-list--stack {
    grid-template-columns: minmax(0, 1fr);
  }
}

.page-faq .faq-item {
  border: 1px solid var(--sb-line);
  border-left: 3px solid var(--sb-clay);
  border-radius: 12px;
  background: var(--sb-paper);
  overflow: hidden;
  transition: border-color .2s var(--sb-ease), box-shadow .2s var(--sb-ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--sb-orange);
  box-shadow: 6px 6px 0 rgba(16, 35, 63, .07);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--sb-blue);
  transition: background-color .18s var(--sb-ease);
}

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

.page-faq .faq-item__q:hover {
  background: rgba(16, 35, 63, .035);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--sb-orange);
  outline-offset: -2px;
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  padding-top: 1px;
  font-family: var(--sb-font-mono);
  font-size: 18px;
  line-height: 1.35;
  color: var(--sb-stone);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "\2013";
  color: var(--sb-orange);
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  padding-top: 4px;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--sb-clay);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--sb-orange);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item__a {
  padding: 0 18px 18px;
}

.page-faq .faq-item__a p {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--sb-line-strong);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--sb-ink);
}

/* ---------- 最短路径 ---------- */
.page-faq .faq-path {
  padding-block: clamp(34px, 5.5vw, 68px);
  background: var(--sb-warm);
  border-top: 1px solid var(--sb-line);
  border-bottom: 1px solid var(--sb-line);
}

.page-faq .faq-path__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-path__idx {
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--sb-moss);
  color: #fff;
  font-size: 11.5px;
  letter-spacing: .12em;
}

.page-faq .faq-path__title {
  margin: 0;
  font-size: clamp(20px, 2.7vw, 30px);
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--sb-blue);
}

.page-faq .faq-path__note {
  margin: 0;
  font-size: 14px;
  color: var(--sb-stone);
}

.page-faq .faq-path__board {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(16px, 2.4vw, 26px);
  border: 1px solid var(--sb-line-strong);
  border-radius: var(--sb-r);
  background: var(--sb-paper);
}

@media (min-width: 900px) {
  .page-faq .faq-path__board {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: center;
    gap: clamp(24px, 3.5vw, 46px);
  }
}

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

.page-faq .faq-path__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: faqstep;
}

.page-faq .faq-path__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 11px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--sb-ink);
}

.page-faq .faq-path__list li::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  padding-top: 4px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--sb-orange);
}

/* ---------- 手机章节（图文左右） ---------- */
.page-faq .faq-group__split {
  display: grid;
  gap: var(--faq-gap);
}

@media (min-width: 900px) {
  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
    gap: clamp(24px, 3.6vw, 48px);
  }
}

.page-faq .faq-mobile__figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--sb-line-strong);
  border-radius: var(--sb-r);
  background: var(--sb-paper);
  box-shadow: 9px 9px 0 rgba(16, 35, 63, .07);
}

.page-faq .faq-mobile__figure .sb-figure__media {
  display: block;
  overflow: hidden;
  border-radius: calc(var(--sb-r) - 8px);
  background: var(--sb-blue);
}

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

.page-faq .faq-mobile__figure .sb-figure__caption {
  margin-top: 10px;
  font-family: var(--sb-font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--sb-stone);
}

/* ---------- 页尾区块 ---------- */
.page-faq .faq-tail {
  position: relative;
  margin-top: clamp(28px, 4vw, 52px);
  padding-block: clamp(40px, 6vw, 78px) clamp(48px, 6vw, 78px);
  background: linear-gradient(172deg, var(--sb-blue) 12%, var(--sb-night) 100%);
  color: var(--sb-warm);
}

.page-faq .faq-tail__stripe {
  display: block;
  height: 14px;
  background: linear-gradient(90deg,
      var(--sb-clay) 0 34%,
      var(--sb-moss) 34% 67%,
      var(--sb-orange) 67% 100%);
}

.page-faq .faq-tail__inner {
  padding-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-tail__title {
  margin: 0 0 14px;
  max-width: 22ch;
  font-size: clamp(23px, 3.2vw, 38px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--sb-warm);
}

.page-faq .faq-tail__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 237, 226, .86);
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-tail__ghost {
  border: 1px solid rgba(244, 237, 226, .42);
  color: var(--sb-warm);
  background: transparent;
}

.page-faq .faq-tail__ghost:hover,
.page-faq .faq-tail__ghost:focus-visible {
  border-color: var(--sb-orange);
  color: #fff;
}

.page-faq .faq-tail__meta {
  display: grid;
  gap: 14px;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid rgba(244, 237, 226, .2);
}

@media (min-width: 720px) {
  .page-faq .faq-tail__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-faq .faq-tail__meta div {
  min-width: 0;
}

.page-faq .faq-tail__meta dt {
  margin-bottom: 5px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--sb-amber);
}

.page-faq .faq-tail__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--sb-warm);
  word-break: break-word;
}

.page-faq .faq-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(244, 237, 226, .36);
  font-family: var(--sb-font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--sb-warm);
  text-decoration: none;
}

.page-faq .faq-top::before {
  content: "\2191";
  color: var(--sb-orange);
}

.page-faq .faq-top:hover,
.page-faq .faq-top:focus-visible {
  border-bottom-color: var(--sb-orange);
}

/* ---------- 小屏微调 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-group__head {
    padding: 11px 15px;
    gap: 8px 12px;
  }

  .page-faq .faq-group__idx {
    padding-right: 11px;
  }

  .page-faq .faq-item__q {
    padding: 14px 15px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 0 15px 16px;
  }

  .page-faq .faq-path__board {
    padding: 14px;
  }

  .page-faq .faq-hero__figure {
    box-shadow: -8px 10px 0 rgba(11, 23, 41, .24);
  }
}