/* ============================================================
   帮助知识库 /knowledge/  —— 页面作用域 .page-faq
   ============================================================ */

.page-faq {
  --faq-rail: 286px;
  background: var(--night);
  color: var(--text);
}

/* ---------- 页面顶部面包屑 ---------- */
.page-faq .crumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 5vw, 58px) 0 clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(125% 95% at 90% 0%, var(--gold-veil) 0%, transparent 58%),
    var(--night);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  background-image:
    linear-gradient(rgba(42, 50, 66, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 50, 66, 0.55) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -70px;
  right: -90px;
  width: min(52vw, 460px);
  height: 230px;
  background: linear-gradient(135deg, var(--red-veil), transparent 72%);
  transform: skewY(-8deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 14ch;
  font-size: clamp(30px, 6.6vw, 62px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
}

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

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

/* ---------- 首屏概览数字 ---------- */
.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-stat {
  position: relative;
  background: var(--panel);
  padding: 18px 16px 20px 20px;
}

.page-faq .faq-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 3px;
  height: 20px;
  background: var(--gold);
}

.page-faq .faq-stat__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-faq .faq-stat__unit {
  margin-left: 2px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

.page-faq .faq-stat__txt {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 分类入口 ---------- */
.page-faq .faq-cats {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.page-faq .faq-cat a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  transition:
    border-color var(--dur-state) var(--ease),
    background var(--dur-state) var(--ease),
    color var(--dur-state) var(--ease);
}

.page-faq .faq-cat a:hover,
.page-faq .faq-cat a:focus-visible {
  border-left-color: var(--gold);
  background: var(--raise);
  color: var(--white);
}

.page-faq .faq-cat .dot,
.page-faq .doc-index__label .dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.page-faq .faq-cat .dot--gold { background: var(--gold); }
.page-faq .faq-cat .dot--red { background: var(--red); }
.page-faq .faq-cat .dot--cyan { background: var(--cyan); }

.page-faq .faq-cat__name {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
}

.page-faq .faq-cat__count {
  flex: none;
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-figure--index {
  margin-top: clamp(18px, 3vw, 28px);
}

/* ---------- 索引 + 正文双栏 ---------- */
.page-faq .reader {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .reader__aside {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 16px 14px 18px;
}

.page-faq .reader__aside .label {
  display: block;
  margin: 0 0 12px;
  color: var(--muted);
}

.page-faq .doc-index__group + .doc-index__group {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .doc-index__label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .doc-index__label .dot--gold { background: var(--gold); }
.page-faq .doc-index__label .dot--red { background: var(--red); }
.page-faq .doc-index__label .dot--cyan { background: var(--cyan); }

.page-faq .doc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .doc-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 10px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
  text-decoration: none;
  transition:
    color var(--dur-state) var(--ease),
    border-color var(--dur-state) var(--ease),
    background var(--dur-state) var(--ease);
}

.page-faq .doc-index__link:hover,
.page-faq .doc-index__link:focus-visible {
  color: var(--white);
  background: var(--gold-veil);
  border-left-color: var(--gold);
}

.page-faq .doc-index__no {
  flex: none;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

/* ---------- 文档条目 ---------- */
.page-faq .doc {
  position: relative;
  scroll-margin-top: calc(var(--bar-h) + 22px);
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(16px, 2.4vw, 24px);
  transition:
    border-color var(--dur-state) var(--ease),
    background var(--dur-state) var(--ease);
}

.page-faq .doc + .doc {
  margin-top: 14px;
}

.page-faq .doc:target {
  border-color: var(--gold);
  background:
    linear-gradient(180deg, var(--gold-veil), transparent 44%),
    var(--panel);
}

.page-faq .doc__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .doc__num {
  font-family: var(--font-num);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-faq .doc__title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .doc__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
}

.page-faq .doc__body {
  margin-top: 14px;
}

.page-faq .doc__body p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text);
}

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

/* ---------- 记录查询步骤 ---------- */
.page-faq .flow-grid {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .flow__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 20px;
}

.page-faq .flow__item:last-child {
  padding-bottom: 0;
}

.page-faq .flow__item::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 38px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-faq .flow__item:last-child::before {
  display: none;
}

.page-faq .flow__badge {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border: 1px solid var(--gold);
  background: var(--night);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-faq .flow__title {
  margin: 5px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .flow__body p {
  margin: 6px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-figure--flow {
  margin-top: 4px;
}

/* ---------- 版本说明对照 ---------- */
.page-faq .vmap {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.page-faq .vmap__item {
  position: relative;
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--gold);
  background: var(--panel);
  padding: 18px 18px 20px;
}

.page-faq .vmap__idx {
  display: inline-block;
  padding: 2px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .vmap__head {
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .vmap__item p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-more .label {
  color: var(--muted);
}

.page-faq .faq-more a {
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.page-faq .faq-more a:hover,
.page-faq .faq-more a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-asks {
  margin-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-asks .fold {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-asks .fold__head {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 2px;
  background: transparent;
  border: 0;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease);
}

.page-faq .faq-asks .fold__head:hover,
.page-faq .faq-asks .fold__head:focus-visible {
  color: var(--white);
}

.page-faq .faq-asks .fold__idx {
  flex: none;
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color var(--dur-state) var(--ease);
}

.page-faq .faq-asks .fold__text {
  flex: 1 1 auto;
  font-size: clamp(15px, 1.8vw, 17px);
  font-weight: 500;
  line-height: 1.5;
}

.page-faq .faq-asks .fold__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line);
  transition: border-color var(--dur-state) var(--ease);
}

.page-faq .faq-asks .fold__mark::before,
.page-faq .faq-asks .fold__mark::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition:
    transform var(--dur-state) var(--ease),
    background var(--dur-state) var(--ease);
}

.page-faq .faq-asks .fold__mark::before {
  left: 3px;
  right: 3px;
  top: 50%;
  height: 1px;
  margin-top: -0.5px;
}

.page-faq .faq-asks .fold__mark::after {
  top: 3px;
  bottom: 3px;
  left: 50%;
  width: 1px;
  margin-left: -0.5px;
}

.page-faq .faq-asks .fold[data-open] .fold__idx {
  color: var(--gold);
}

.page-faq .faq-asks .fold[data-open] .fold__mark {
  border-color: var(--gold);
}

.page-faq .faq-asks .fold[data-open] .fold__mark::before {
  background: var(--gold);
}

.page-faq .faq-asks .fold[data-open] .fold__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-asks .fold__inner {
  max-width: 68ch;
  padding: 0 2px 18px 36px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .faq-asks .fold__inner p {
  margin: 0;
}

/* ---------- 联系与反馈 ---------- */
.page-faq .help-grid {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .help-card {
  padding: clamp(18px, 2.4vw, 24px);
}

.page-faq .help-card .label {
  display: block;
  margin: 0;
  color: var(--muted);
}

.page-faq .help-line {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr);
  gap: 10px;
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
  word-break: break-word;
}

.page-faq .help-line > span {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-faq .help-line b {
  font-weight: 500;
}

.page-faq .help-note {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 24px);
}

.page-faq .help-note p {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .help-note__actions {
  margin: 0;
}

/* ---------- 中小屏调整 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__acts {
    gap: 14px;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(28px, 4vw, 58px);
  }

  .page-faq .faq-hero h1 {
    max-width: 12ch;
  }
}

@media (min-width: 980px) {
  .page-faq .reader {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .reader__aside {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    max-height: calc(100vh - var(--bar-h) - 44px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 12px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .doc-index__link,
  .page-faq .faq-cat a,
  .page-faq .doc,
  .page-faq .faq-asks .fold__head,
  .page-faq .faq-asks .fold__idx,
  .page-faq .faq-asks .fold__mark,
  .page-faq .faq-asks .fold__mark::before,
  .page-faq .faq-asks .fold__mark::after,
  .page-faq .faq-more a {
    transition: none;
  }
}
<<<END>>>