.page-faq {
  --faq-rail-w: 236px;
}

.page-faq .sec {
  position: relative;
  padding: clamp(44px, 6vw, 88px) 0;
}

/* ---------- 章节指示点 ---------- */
.page-faq .section-dots {
  display: none;
}

.page-faq .section-dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--line);
  background: transparent;
  display: block;
}

.page-faq .section-dot:hover {
  border-color: var(--accent);
}

.page-faq .section-dot[aria-current="true"] {
  background: var(--accent);
  border-color: var(--accent);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  margin-bottom: 10px;
}

.page-faq .breadcrumb-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb-list a {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .breadcrumb-list a:hover {
  color: var(--accent);
}

/* ---------- 首屏 ---------- */
.page-faq .hero {
  padding-top: clamp(22px, 4vw, 44px);
  overflow: hidden;
}

.page-faq .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(112deg, rgba(18, 224, 196, 0.14) 0%, rgba(18, 224, 196, 0) 44%),
    linear-gradient(292deg, rgba(108, 76, 255, 0.16) 0%, rgba(108, 76, 255, 0) 40%);
  clip-path: polygon(0 0, 100% 0, 100% 60%, 0 100%);
  pointer-events: none;
}

.page-faq .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.18;
  -webkit-mask-image: linear-gradient(158deg, #000 0%, transparent 68%);
  mask-image: linear-gradient(158deg, #000 0%, transparent 68%);
  pointer-events: none;
}

.page-faq .hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .hero-grid {
  display: grid;
  gap: 28px;
  align-items: start;
  margin-top: 12px;
}

.page-faq .hero-kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1.2px;
  color: var(--accent);
  margin: 0;
}

.page-faq .hero-copy h1 {
  font-size: clamp(30px, 5.4vw, 54px);
  font-weight: 900;
  letter-spacing: -1.2px;
  line-height: 1.08;
  margin: 14px 0 16px;
}

.page-faq .hero-lead {
  max-width: 640px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text);
  margin: 0 0 24px;
}

.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 索引面板 ---------- */
.page-faq .index-panel {
  border: 1px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-panel);
  padding: 20px;
}

.page-faq .index-panel .panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.page-faq .index-panel .panel-title {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.page-faq .index-panel .panel-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--hi);
}

.page-faq .search-field {
  display: block;
  margin: 16px 0 12px;
}

.page-faq .search-label {
  display: block;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  margin-bottom: 8px;
}

.page-faq .search-input {
  width: 100%;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  padding: 12px 14px;
}

.page-faq .search-input::placeholder {
  color: var(--muted);
}

.page-faq .search-input:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-color: var(--accent);
}

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

.page-faq .cat-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-left-color: var(--accent);
  color: var(--text);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 700;
}

.page-faq .cat-list li:nth-child(2) a {
  border-left-color: var(--hi);
}

.page-faq .cat-list li:nth-child(3) a {
  border-left-color: var(--warn);
}

.page-faq .cat-list a:hover {
  background: var(--ink-700);
  border-color: var(--accent);
}

.page-faq .cat-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .index-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 数据带 ---------- */
.page-faq .strip-sec {
  padding: 0 0 clamp(36px, 5vw, 60px);
}

.page-faq .data-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  min-height: 88px;
}

.page-faq .stat {
  background: var(--ink-800);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--hi);
}

.page-faq .stat-label {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 章节头 ---------- */
.page-faq .section-head {
  max-width: 760px;
}

.page-faq .section-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--accent);
  margin: 0 0 10px;
}

.page-faq .section-title {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.2;
  margin: 0 0 12px;
}

.page-faq .section-lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .section-foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .section-foot a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .section-foot a:hover {
  border-bottom-color: var(--accent);
}

/* ---------- 媒体占位 ---------- */
.page-faq .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-faq .media-caption {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.page-faq .flow-figure {
  margin-top: 24px;
}

.page-faq .tree-figure {
  margin-top: 24px;
}

/* ---------- 三分钟订阅 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .steps li {
  border-top: 2px solid var(--accent);
  background: var(--ink-800);
  padding: 18px 18px 20px;
}

.page-faq .steps h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.3px;
}

.page-faq .steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .step-num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 10px;
}

.page-faq .flow-code {
  margin: 18px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

/* ---------- 分类标签 ---------- */
.page-faq .cat-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}

.page-faq .cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
}

.page-faq .cat-tag::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--accent);
  flex: none;
}

.page-faq .cat-tag--push::before {
  background: var(--hi);
}

.page-faq .cat-tag--fix::before {
  background: var(--warn);
}

.page-faq .cat-tag:hover {
  background: var(--ink-800);
  border-color: var(--accent);
}

/* ---------- 目录双栏 ---------- */
.page-faq .doc-layout {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-faq .doc-rail {
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

.page-faq .rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--muted);
}

.page-faq .rail-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .rail-list a {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}

.page-faq .rail-list a:hover {
  color: var(--accent);
}

.page-faq .rail-count {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .rail-meta {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .doc-group {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .doc-group + .doc-group {
  margin-top: 38px;
}

.page-faq .group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}

.page-faq .group-dot {
  width: 12px;
  height: 12px;
  flex: none;
  background: var(--accent);
}

.page-faq .doc-group--push .group-dot {
  background: var(--hi);
}

.page-faq .doc-group--fix .group-dot {
  background: var(--warn);
}

.page-faq .group-head h3 {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 900;
  letter-spacing: -0.5px;
}

.page-faq .group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .doc-item {
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: 16px 16px 14px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .doc-item:hover {
  border-color: var(--accent);
}

.page-faq .doc-item:target {
  border-color: var(--hi);
  box-shadow: inset 3px 0 0 var(--hi);
}

.page-faq .doc-item-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.page-faq .doc-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .doc-anchor {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--line);
  text-decoration: none;
  flex: none;
}

.page-faq .doc-anchor:hover {
  color: var(--hi);
}

.page-faq .doc-desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 三段面板 ---------- */
.page-faq .segment-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 24px;
}

.page-faq .segment {
  background: var(--ink-800);
  padding: 20px;
}

.page-faq .segment h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 900;
}

.page-faq .segment-index {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
}

.page-faq .segment p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .note-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--warn);
  background: var(--ink-800);
}

.page-faq .note-bar p {
  margin: 0;
  flex: 1 1 260px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-q {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.6;
}

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

.page-faq .faq-q::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.35;
  color: var(--rule);
  flex: none;
}

.page-faq .faq-item[open] .faq-q::before {
  content: "\2013";
}

.page-faq .faq-item[open] {
  border-color: var(--rule);
}

.page-faq .faq-a {
  padding: 0 18px 18px 42px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-faq .faq-list--after .faq-q::before {
  color: var(--accent);
}

.page-faq .faq-list--after .faq-item[open] {
  border-color: var(--accent);
}

/* ---------- 纠错面板 ---------- */
.page-faq .report-panel {
  display: grid;
  gap: 20px;
  margin-top: 24px;
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--hi);
  background: var(--ink-800);
}

.page-faq .report-copy h3 {
  margin: 0 0 14px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 900;
  letter-spacing: -0.4px;
}

.page-faq .report-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .report-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text);
}

.page-faq .report-list .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--hi);
}

.page-faq .report-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .report-note a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .report-note a:hover {
  border-bottom-color: var(--accent);
}

.page-faq .report-action {
  display: flex;
  align-items: flex-start;
}

/* ---------- 联系区块 ---------- */
.page-faq .reach {
  display: grid;
  gap: 22px;
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  background: var(--ink-800);
}

.page-faq .reach .section-title {
  font-size: clamp(22px, 3vw, 30px);
}

.page-faq .reach-sub {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .reach-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .data-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-faq .doc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-a {
    padding-left: 46px;
  }
}

@media (min-width: 900px) {
  .page-faq .report-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
  }

  .page-faq .reach {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-faq .doc-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .doc-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }
}

@media (min-width: 1200px) {
  .page-faq .section-dots {
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: fixed;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .section-dot,
  .page-faq .doc-item {
    transition: none;
  }
}
<<<END>>>