/* ===== 帮助中心 page-faq ===== */
.page-faq {
  --faq-paper-ink: #0d2436;
  background: var(--deep);
  color: var(--paper);
  font-family: var(--font-display);
  padding-bottom: clamp(32px, 6vw, 72px);
  overflow-x: hidden;
}

/* 面包屑 */
.page-faq .faq-crumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .bs-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .bs-crumbs__list li + li::before {
  content: "／";
  margin-right: 8px;
  color: var(--rock);
}

.page-faq .bs-crumbs__list a {
  color: var(--cold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .bs-crumbs__list a:hover,
.page-faq .bs-crumbs__list a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* 首屏拼贴 */
.page-faq .faq-hero {
  padding: clamp(20px, 4vw, 40px) 0 clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero__main {
  position: relative;
  padding: clamp(22px, 4vw, 38px) clamp(18px, 3vw, 34px) clamp(26px, 4vw, 42px);
  border-left: 4px solid var(--neon);
  clip-path: var(--cut);
  background-image:
    repeating-linear-gradient(105deg, transparent 0 22px, rgba(182, 240, 58, 0.05) 22px 23px),
    linear-gradient(155deg, var(--stand) 0%, var(--deep-2) 74%);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 15em;
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 58ch;
  color: var(--cold);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__jump {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 10px;
  align-content: start;
}

.page-faq .faq-jump {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(16, 46, 73, 0.62);
  border: 1px solid var(--line-soft);
  clip-path: var(--cut-sm);
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  background: rgba(182, 240, 58, 0.12);
  border-color: var(--neon);
  transform: translateX(3px);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
}

/* 章节骨架 */
.page-faq .faq-block {
  padding: clamp(30px, 5vw, 60px) 0;
}

.page-faq .faq-head {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-faq .faq-head h2 {
  margin: 8px 0 0;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-faq .faq-head__note {
  margin: 10px 0 0;
  max-width: 62ch;
  color: var(--cold);
  font-size: 15px;
  line-height: 1.75;
}

/* 图片 */
.page-faq .bs-figure__media {
  overflow: hidden;
  background: var(--stand);
  border: 1px solid var(--line-soft);
  clip-path: var(--cut);
}

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

.page-faq .faq-steps__figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-faq .faq-fees__figure {
  margin: 0;
}

/* 三步 */
.page-faq .faq-steps__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 18px 18px 20px 20px;
  background: var(--stand);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--rock);
  clip-path: var(--cut);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  background: #13354f;
  border-left-color: var(--neon);
  transform: translateX(4px);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-faq .faq-step__title {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-step__text {
  margin: 8px 0 0;
  color: var(--cold);
  font-size: 14px;
  line-height: 1.75;
}

@media (min-width: 760px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 40px;
    right: -14px;
    width: 10px;
    height: 1px;
    background: var(--neon);
    opacity: 0.6;
  }
}

/* 问答折叠 */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--neon);
  transition: width 0.25s var(--ease);
}

.page-faq .faq-item[open]::before {
  width: 3px;
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 46px 18px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

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

.page-faq .faq-item__summary:hover,
.page-faq .faq-item__summary:focus-visible {
  color: var(--neon);
  background: rgba(182, 240, 58, 0.05);
}

.page-faq .faq-item__summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--neon);
}

.page-faq .faq-item[open] .faq-item__summary::after {
  content: "–";
}

.page-faq .faq-item__a {
  padding: 0 46px 20px 21px;
  color: var(--cold);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0;
}

.page-faq .faq-item__a a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: var(--amber);
}

/* 费用区 */
.page-faq .faq-block--fees {
  background-image: linear-gradient(180deg, rgba(255, 122, 42, 0.08), transparent 62%);
}

.page-faq .faq-block--fees .faq-item::before {
  width: 3px;
  background: var(--amber);
  opacity: 0.4;
  transition: width 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-faq .faq-block--fees .faq-item[open]::before {
  width: 3px;
  opacity: 1;
}

.page-faq .faq-block--fees .faq-item__summary::after {
  color: var(--amber);
}

.page-faq .faq-block--fees .faq-item__summary:hover,
.page-faq .faq-block--fees .faq-item__summary:focus-visible {
  color: var(--amber);
  background: rgba(255, 122, 42, 0.07);
}

.page-faq .faq-block__body {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

@media (min-width: 960px) {
  .page-faq .faq-block--fees .faq-block__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
  }
}

/* 联系面板 */
.page-faq .faq-support__panel {
  padding: clamp(22px, 4vw, 46px);
  background: var(--paper);
  color: var(--faq-paper-ink);
  clip-path: var(--cut);
}

.page-faq .faq-support__panel .faq-head h2 {
  color: var(--deep);
}

.page-faq .faq-support__panel .faq-head__note {
  color: #33474f;
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 3vw, 28px);
}

@media (min-width: 720px) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-faq .faq-support__card {
  padding: 20px 22px;
  background: rgba(8, 25, 43, 0.05);
  border: 1px solid rgba(8, 25, 43, 0.18);
  border-top: 3px solid var(--deep);
  clip-path: var(--cut-sm);
}

.page-faq .faq-support__card .bs-meta {
  margin: 0;
  color: var(--rock);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-support__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 19px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--deep);
  word-break: break-all;
}

.page-faq .faq-support__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #3b4d55;
}

.page-faq .faq-copy {
  margin-top: 14px;
  cursor: pointer;
}

.page-faq .faq-support__panel .bs-btn--ghost {
  color: var(--deep);
  border-color: rgba(8, 25, 43, 0.38);
  background: transparent;
}

.page-faq .faq-support__panel .bs-btn--ghost:hover,
.page-faq .faq-support__panel .bs-btn--ghost:focus-visible {
  border-color: var(--deep);
  background: rgba(8, 25, 43, 0.07);
}

.page-faq .faq-support__card .bs-copy__state {
  display: inline-block;
  margin-left: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-faq .faq-support__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(8, 25, 43, 0.18);
  font-size: 14px;
  line-height: 1.85;
  color: #2b3f47;
}

.page-faq .faq-support__foot a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-support__foot a:hover,
.page-faq .faq-support__foot a:focus-visible {
  color: var(--amber);
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump,
  .page-faq .faq-step,
  .page-faq .faq-item::before,
  .page-faq .faq-item__summary {
    transition: none;
  }

  .page-faq .faq-jump:hover,
  .page-faq .faq-jump:focus-visible,
  .page-faq .faq-step:hover,
  .page-faq .faq-step:focus-within {
    transform: none;
  }
}