.page-faq {
  --faq-line: rgba(16, 33, 79, .14);
  --faq-line-soft: rgba(16, 33, 79, .08);
  padding-bottom: 64px;
  scroll-behavior: smooth;
}

.page-faq .breadcrumb {
  margin: 22px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-faq .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  color: var(--muted);
}

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

.page-faq .breadcrumb a {
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 63, 158, .35);
}

.page-faq .breadcrumb a:hover {
  color: var(--red-deep);
  border-bottom-color: var(--red);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 22px;
  padding: 18px 0 30px;
  border-bottom: 2px solid var(--indigo-deep);
}

.page-faq .faq-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--red-deep);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 7.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--indigo-deep);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--ink);
}

.page-faq .faq-hero__lead a {
  color: var(--red-deep);
  font-weight: 600;
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 13px;
  background: var(--cream);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  line-height: 1;
  color: var(--indigo);
}

.page-faq .faq-stat-label {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink);
  opacity: .82;
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: 26px;
  padding-top: 30px;
}

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

.page-faq .faq-aside {
  order: -1;
  min-width: 0;
}

.page-faq .aside-card {
  padding: 14px;
  background: var(--paper-2);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
}

.page-faq .aside-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--red-deep);
  text-transform: uppercase;
}

.page-faq .aside-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .aside-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  background: var(--cream);
  border: 1px solid rgba(30, 63, 158, .26);
  color: var(--indigo-deep);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.page-faq .aside-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--red);
}

.page-faq .aside-link:hover,
.page-faq .aside-link:focus-visible {
  background: var(--indigo);
  color: var(--cream);
  transform: translateY(-2px);
}

.page-faq .aside-link:hover .aside-idx,
.page-faq .aside-link:focus-visible .aside-idx {
  color: var(--gold);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 26px 0 6px;
  scroll-margin-top: calc(var(--header-offset) + 16px);
}

.page-faq .faq-sec + .faq-sec {
  border-top: 1px dashed rgba(16, 33, 79, .22);
  margin-top: 22px;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.page-faq .section-index {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  flex: none;
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 4.6vw, 29px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--indigo-deep);
}

.page-faq .faq-sec__lead {
  margin: 0 0 18px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink);
}

.page-faq .faq-sec__lead a,
.page-faq .faq-note a {
  color: var(--red-deep);
  font-weight: 600;
  text-underline-offset: 3px;
}

.page-faq .faq-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 新旧对照表 ---------- */
.page-faq .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--cream);
  -webkit-overflow-scrolling: touch;
}

.page-faq .compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .compare th {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--cream);
  background: var(--indigo);
  white-space: nowrap;
}

.page-faq .compare th + th {
  border-left: 1px solid rgba(255, 252, 245, .22);
}

.page-faq .compare td {
  padding: 12px;
  vertical-align: top;
  line-height: 1.62;
  border-top: 1px solid var(--faq-line-soft);
  color: var(--ink);
}

.page-faq .compare tbody tr:nth-child(even) {
  background: rgba(232, 220, 198, .42);
}

.page-faq .compare tbody tr:hover {
  background: rgba(216, 154, 58, .16);
}

.page-faq .compare td:first-child {
  width: 42%;
  color: var(--muted);
  font-size: 13px;
}

.page-faq .compare s {
  text-decoration-thickness: 1.5px;
  text-decoration-color: var(--red);
}

.page-faq .compare a {
  color: var(--red-deep);
  font-weight: 600;
  text-underline-offset: 2px;
}

.page-faq .dest {
  display: inline-block;
  margin-right: 6px;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  background: var(--red);
  color: var(--cream);
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1.6;
  white-space: nowrap;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--paper-2);
}

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

.page-faq .faq-figure figcaption {
  padding: 8px 14px 10px;
  border-top: 1px solid var(--faq-line);
  background: var(--cream);
  font-family: var(--font-hand);
  font-size: 13.5px;
  color: var(--indigo-deep);
}

/* ---------- 四步排查 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .step {
  position: relative;
  padding: 15px 15px 15px 54px;
  background: var(--cream);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  transition: border-color .16s ease, transform .16s ease;
}

.page-faq .step:hover {
  transform: translateY(-2px);
  border-color: rgba(30, 63, 158, .4);
}

.page-faq .step-num {
  position: absolute;
  left: 13px;
  top: 15px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  background: var(--indigo);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .step h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--indigo-deep);
}

.page-faq .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-faq .step-eg {
  display: block;
  margin-top: 9px;
  padding: 7px 10px;
  border-left: 3px solid var(--red);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(201, 58, 46, .07);
  font-size: 13px;
  line-height: 1.62;
  color: var(--red-deep);
}

/* ---------- 订阅问答 ---------- */
.page-faq .sub-layout {
  display: grid;
  gap: 18px;
}

.page-faq .qa-list {
  min-width: 0;
}

.page-faq .qa {
  position: relative;
  overflow: hidden;
  margin-bottom: 10px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--cream);
  transition: border-color .16s ease, box-shadow .16s ease;
}

.page-faq .qa[open] {
  border-color: rgba(201, 58, 46, .42);
  box-shadow: var(--shadow-card);
}

.page-faq .qa[open]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--gold);
}

.page-faq .qa-sum {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 13px 42px 13px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--indigo-deep);
}

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

.page-faq .qa-sum::after {
  content: "+";
  position: absolute;
  right: 15px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--red);
}

.page-faq .qa[open] .qa-sum::after {
  content: "–";
}

.page-faq .qa-sum:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: -3px;
}

.page-faq .qa-body {
  padding: 0 16px 16px;
}

.page-faq .qa-body p {
  margin: 0;
  max-width: 28em;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink);
}

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

.page-faq .qa-body a {
  color: var(--red-deep);
  font-weight: 600;
  text-underline-offset: 3px;
}

.page-faq .qa--flag {
  margin-top: 18px;
}

/* ---------- 版本差异 ---------- */
.page-faq .records {
  display: grid;
  gap: 12px;
  margin: 0 0 16px;
}

.page-faq .rec {
  padding: 13px 14px;
  background: var(--cream);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
}

.page-faq .rec--old {
  background: var(--paper-2);
}

.page-faq .rec-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 8px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .rec-code {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--indigo-deep);
}

.page-faq .rec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  font-size: 13.5px;
  line-height: 1.6;
}

.page-faq .rec-row + .rec-row {
  border-top: 1px dotted rgba(16, 33, 79, .18);
}

.page-faq .rec-key {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .rec-val {
  font-weight: 600;
  color: var(--ink);
  text-align: right;
}

.page-faq .diff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .diff-list li {
  display: grid;
  gap: 3px;
  padding: 10px 13px;
  border-left: 3px solid var(--indigo);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(30, 63, 158, .06);
}

.page-faq .diff-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-faq .diff-val {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

/* ---------- 手机操作 ---------- */
.page-faq .mq-grid {
  display: grid;
  gap: 12px;
}

.page-faq .mq {
  padding: 15px;
  background: var(--cream);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  border-top: 3px solid var(--red);
}

.page-faq .mq-q {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--indigo-deep);
}

.page-faq .mq-idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .mq p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 联系 ---------- */
.page-faq .contact-box {
  padding: 20px 18px;
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, var(--indigo) 0%, var(--indigo-deep) 55%, var(--red-deep) 130%);
  color: var(--cream);
  box-shadow: var(--shadow-card);
}

.page-faq .contact-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-faq .contact-mail {
  display: inline-block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.2vw, 21px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--cream);
  text-decoration: underline;
  text-decoration-color: rgba(216, 154, 58, .8);
  text-underline-offset: 5px;
  word-break: break-all;
}

.page-faq .contact-mail:hover {
  color: var(--gold);
}

.page-faq .contact-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid rgba(255, 252, 245, .24);
  padding-top: 12px;
}

.page-faq .contact-rows li {
  display: grid;
  gap: 2px;
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(255, 252, 245, .72);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .records {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .compare {
    font-size: 14px;
  }

  .page-faq .compare td:first-child {
    width: 36%;
  }

  .page-faq .diff-list li {
    grid-template-columns: 9em minmax(0, 1fr);
    align-items: baseline;
    gap: 10px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
    gap: 30px;
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .mq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .aside-list {
    gap: 10px;
  }

  .page-faq .faq-sec {
    padding-top: 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .mq-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .sub-layout {
    grid-template-columns: minmax(0, 1fr) 258px;
    align-items: start;
    gap: 22px;
  }

  .page-faq .faq-figure--tall {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 214px;
    gap: 42px;
    padding-top: 36px;
  }

  .page-faq .faq-aside {
    order: 0;
    position: sticky;
    top: calc(var(--header-offset) + 18px);
  }

  .page-faq .aside-list {
    flex-direction: column;
  }

  .page-faq .aside-link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-sec h2 {
    font-size: 30px;
  }

  .page-faq .section-index {
    font-size: 36px;
  }
}

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

  .page-faq .step:hover,
  .page-faq .aside-link:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>