/* ============================================================
   帮助中心 /help-center/  —  作用域 .page-faq
   ============================================================ */

.page-faq {
  --faq-rail-w: 240px;
  --faq-col-gap: 60px;
  --faq-line: 1px solid var(--c-line);
  --faq-rule-soft: 1px dashed rgba(31, 59, 52, .9);
  color: var(--c-mist);
  padding-bottom: 72px;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: calc(var(--header-h) + 22px);
  font-size: var(--fs-xs);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  letter-spacing: var(--ls-wide);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--c-line);
}

.page-faq .breadcrumb a {
  color: var(--c-mist-dim);
  text-decoration: none;
  transition: color .2s var(--ease);
}

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

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--c-amber);
  font-family: var(--ff-mono);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 66px;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -160px -10% auto -10%;
  height: 520px;
  background:
    radial-gradient(ellipse at 26% 46%, rgba(61, 242, 192, .14), transparent 60%),
    radial-gradient(ellipse at 80% 18%, rgba(240, 180, 41, .10), transparent 56%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0 0 0 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(233, 245, 240, .035) 0 1px,
    transparent 1px 4px
  );
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  color: var(--c-mist-dim);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(28px, 5.4vw, var(--fs-2xl));
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
  font-weight: 700;
  max-width: 20em;
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 46em;
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--c-mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* 首屏数据块 —— 错位叠层 */
.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-self: end;
}

.page-faq .faq-stat {
  position: relative;
  padding: 18px 12px 16px;
  background: linear-gradient(180deg, rgba(14, 39, 33, .92), rgba(17, 20, 23, .92));
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 26px;
  height: 2px;
  background: var(--c-neon);
  box-shadow: 0 0 10px rgba(61, 242, 192, .6);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--ff-mono);
  font-size: clamp(24px, 4vw, var(--fs-xl));
  line-height: 1.1;
  letter-spacing: var(--ls-wide);
  color: var(--c-amber);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--c-mist-dim);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

/* ---------- 左侧目录轨道（移动端为横向滑动条） ---------- */
.page-faq .faq-rail {
  border-top: var(--faq-line);
  border-bottom: var(--faq-line);
  padding: 12px 0;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  color: var(--c-mist-dim);
  font-family: var(--ff-mono);
}

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

.page-faq .faq-rail__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
  text-decoration: none;
  color: var(--c-mist);
  font-size: var(--fs-sm);
  line-height: 1.2;
  white-space: nowrap;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--c-neon);
  border-color: var(--c-neon);
  background: rgba(61, 242, 192, .07);
  outline: none;
}

.page-faq .faq-rail__num {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--c-amber);
}

/* ---------- 右侧内容流 ---------- */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-block {
  padding: 40px 0 8px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .faq-block + .faq-block {
  margin-top: 26px;
  border-top: var(--faq-line);
}

.page-faq .faq-block__head {
  position: relative;
  margin-bottom: 26px;
}

.page-faq .faq-block__num {
  margin: 0 0 10px;
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  color: var(--c-amber);
}

.page-faq .faq-block__num::after {
  content: "";
  display: inline-block;
  vertical-align: middle;
  width: 46px;
  height: 1px;
  margin-left: 12px;
  background: linear-gradient(90deg, var(--c-line), transparent);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, var(--fs-xl));
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
  font-weight: 700;
}

.page-faq .faq-block__desc {
  margin: 14px 0 0;
  max-width: 52em;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--c-mist-dim);
}

/* ---------- 图框 ---------- */
.page-faq .faq-figure {
  margin: 0 0 30px;
  border-radius: var(--r-md);
}

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

/* ---------- 自查三步 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 0 22px 0;
  border-top: var(--faq-rule-soft);
}

.page-faq .faq-step:first-child {
  border-top: none;
  padding-top: 6px;
}

.page-faq .faq-step__num {
  margin: 0 0 8px;
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  color: var(--c-neon);
}

.page-faq .faq-step__t {
  margin: 0 0 10px;
  font-size: var(--fs-md);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
}

.page-faq .faq-step p {
  margin: 0;
  max-width: 44em;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
}

/* ---------- 三种检索方式 ---------- */
.page-faq .faq-modes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-mode {
  position: relative;
  padding: 22px 18px 20px;
  background: linear-gradient(160deg, rgba(14, 39, 33, .78), rgba(17, 20, 23, .78));
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-amber);
  border-radius: var(--r-sm);
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-mode:hover {
  border-color: rgba(61, 242, 192, .5);
  border-left-color: var(--c-neon);
  box-shadow: 0 0 0 1px rgba(61, 242, 192, .16), 0 10px 30px -18px rgba(61, 242, 192, .5);
}

.page-faq .faq-mode__k {
  margin: 0 0 10px;
}

.page-faq .faq-mode__t {
  margin: 0 0 10px;
  font-size: var(--fs-base);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
}

.page-faq .faq-mode p:last-child {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--c-mist);
}

/* ---------- 问答折叠列表 ---------- */
.page-faq .faq-list {
  border-bottom: var(--faq-line);
}

.page-faq .faq-item {
  border-top: var(--faq-line);
}

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  padding: 18px 6px;
  cursor: pointer;
  list-style: none;
  color: var(--c-paper);
  font-size: var(--fs-base);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-wide);
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--c-neon);
  background: rgba(61, 242, 192, .05);
  outline: none;
}

.page-faq .faq-item__idx {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  line-height: 1.9;
  color: var(--c-amber);
  letter-spacing: 0;
}

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

.page-faq .faq-item__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  color: var(--c-mist-dim);
  flex: none;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 1px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.page-faq .faq-item__sign::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] > .faq-item__q {
  color: var(--c-neon);
}

.page-faq .faq-item[open] .faq-item__sign {
  color: var(--c-neon);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 6px 24px 46px;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--c-mist);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 46em;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-block--support {
  padding-bottom: 30px;
}

.page-faq .faq-support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-support__t {
  margin: 0 0 12px;
  font-size: var(--fs-md);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
}

.page-faq .faq-support__t + p {
  margin: 0 0 26px;
  max-width: 44em;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
}

.page-faq .faq-support__addr {
  margin: 0;
  padding-top: 16px;
  border-top: var(--faq-rule-soft);
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wide);
  color: var(--c-mist-dim);
}

.page-faq .faq-support__side {
  position: relative;
  padding: 26px 20px 24px;
  background: linear-gradient(200deg, rgba(14, 39, 33, .85), rgba(8, 19, 15, .85));
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}

.page-faq .faq-support__side::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 40px;
  height: 2px;
  background: var(--c-amber);
}

.page-faq .faq-support__side-k {
  margin: 0 0 10px;
}

.page-faq .faq-support__side-t {
  margin: 0 0 12px;
  font-size: var(--fs-base);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-wide);
  color: var(--c-paper);
}

.page-faq .faq-support__side p {
  margin: 0 0 18px;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
}

.page-faq .faq-support__links {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: var(--faq-rule-soft);
  display: grid;
  gap: 10px;
}

.page-faq .faq-support__links a {
  display: block;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-support__links a:hover,
.page-faq .faq-support__links a:focus-visible {
  color: var(--c-neon);
  border-bottom-color: rgba(61, 242, 192, .5);
  outline: none;
}

/* ============================================================
   响应式
   ============================================================ */

@media (max-width: 599px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-item__a {
    padding-left: 6px;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 26px;
  }

  .page-faq .faq-step {
    border-top: none;
    padding-top: 6px;
  }

  .page-faq .faq-step + .faq-step {
    border-left: var(--faq-rule-soft);
    padding-left: 26px;
  }

  .page-faq .faq-modes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: 44px;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: 96px;
  }

  .page-faq .faq-body__inner {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: var(--faq-col-gap);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    border-top: none;
    border-bottom: none;
    border-left: var(--faq-line);
    padding: 4px 0 4px 18px;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail__list > li + li {
    margin-top: 2px;
  }

  .page-faq .faq-rail__list a {
    display: flex;
    width: 100%;
    padding: 10px 12px;
    border-color: transparent;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
  }

  .page-faq .faq-rail__list a:hover,
  .page-faq .faq-rail__list a:focus-visible {
    border-color: transparent;
    border-left-color: var(--c-neon);
  }

  .page-faq .faq-block {
    padding-top: 52px;
  }

  .page-faq .faq-block + .faq-block {
    margin-top: 36px;
  }

  .page-faq .faq-item__q {
    padding: 20px 14px;
  }

  .page-faq .faq-item__a {
    padding: 2px 14px 26px 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<END>>>