/* =========================================================
   page-faq —— 帮助中心
   问题分组手风琴 + 左侧章节锚点
   ========================================================= */

.page-faq {
  display: block;
  padding-bottom: 88px;
  color: var(--paper);
}

/* ---------------- 首屏 ---------------- */

.page-faq .faq-hero {
  padding: 22px 0 46px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 320px at 84% -20%, rgba(43, 230, 200, 0.1), transparent 64%),
    linear-gradient(180deg, rgba(20, 26, 58, 0.86), rgba(11, 16, 38, 0) 82%),
    var(--ink);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-h1 {
  margin: 10px 0 0;
  max-width: 18ch;
  font-family: var(--display);
  font-size: clamp(28px, 7.2vw, 54px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(236, 233, 226, 0.8);
}

/* ---------------- 两栏骨架 ---------------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 34px;
  align-items: start;
}

/* ---------------- 左侧锚点栏 ---------------- */

.page-faq .faq-rail {
  min-width: 0;
  padding: 14px 0 6px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-rail-link {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(20, 26, 58, 0.5);
  color: var(--stone);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-faq .faq-rail-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  color: var(--paper);
  border-color: var(--line-strong);
}

.page-faq .faq-rail-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------------- 正文区 ---------------- */

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

.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 28px);
  margin-bottom: 52px;
}

.page-faq .faq-section:last-child {
  margin-bottom: 0;
}

.page-faq .faq-sec-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec-num {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sand);
}

.page-faq .faq-sec-title {
  margin: 8px 0 0;
  font-size: clamp(21px, 4vw, 27px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .faq-sec-note {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------------- 手风琴 ---------------- */

.page-faq .faq-qa {
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-qa:last-of-type {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 17px 4px 17px 0;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  transition: color 140ms var(--ease);
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-q-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
}

.page-faq .faq-q-mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-right: 2px solid var(--stone);
  border-bottom: 2px solid var(--stone);
  transform: rotate(45deg);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-faq .faq-qa[open] .faq-q-mark {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-faq .faq-a {
  max-width: 38em;
  padding: 0 0 20px 30px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(236, 233, 226, 0.86);
}

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

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

.page-faq .faq-a a {
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-a a:hover {
  color: var(--cyan);
}

/* ---------------- 配置步骤 ---------------- */

.page-faq .faq-steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-step-num {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  line-height: 1;
}

.page-faq .faq-step-body {
  min-width: 0;
}

.page-faq .faq-step-title {
  margin: 2px 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-step-body p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(236, 233, 226, 0.8);
}

/* ---------------- 图 ---------------- */

.page-faq .faq-figure {
  margin: 28px 0 4px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  background: var(--panel-2);
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .faq-figure--support {
  margin-top: 22px;
}

/* ---------------- 联系方式 ---------------- */

.page-faq .faq-contact {
  margin: 22px 0 0;
  padding: 0;
}

.page-faq .faq-contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-contact-row:last-child {
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-contact dt {
  flex: 0 0 auto;
  min-width: 84px;
  font-size: 14px;
  color: var(--stone);
}

.page-faq .faq-contact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-contact dd .mono {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--sand);
}

.page-faq .faq-contact-note {
  margin: 16px 0 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

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

.page-faq .faq-actions .btn {
  min-height: 44px;
}

/* ---------------- 平板与桌面 ---------------- */

@media (min-width: 760px) {
  .page-faq .faq-hero {
    padding: 30px 0 56px;
  }

  .page-faq .faq-layout {
    gap: 40px;
    padding-top: 48px;
  }

  .page-faq .faq-rail {
    padding: 18px 0 12px;
  }

  .page-faq .faq-rail-list {
    flex-wrap: wrap;
    overflow-x: visible;
  }
}

@media (min-width: 960px) {
  .page-faq {
    padding-bottom: 120px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 64px;
    padding-top: 64px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    padding: 0 0 0 0;
    border-top: 0;
    border-bottom: 0;
  }

  .page-faq .faq-rail-title {
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-rail-list {
    display: block;
    padding: 12px 0 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-rail-list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-rail-link {
    min-height: 44px;
    padding: 10px 4px 10px 14px;
    margin-left: -1px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    color: var(--paper);
    border-left-color: var(--moss);
  }

  .page-faq .faq-rail-link:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 0;
  }

  .page-faq .faq-rail-num {
    color: var(--sand);
  }

  .page-faq .faq-body {
    max-width: 780px;
  }

  .page-faq .faq-q-text {
    font-size: 17px;
  }

  .page-faq .faq-a {
    padding-left: 34px;
    font-size: 16px;
  }
}

/* ---------------- 降低动效 ---------------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-q-mark,
  .page-faq .faq-rail-link {
    transition: none;
  }

  .page-faq .faq-qa[open] .faq-q-mark {
    transform: rotate(-135deg);
  }
}
</PAGE_CSS>>>