.page-faq {
  --faq-rule: 2px solid var(--line-strong);
  --faq-node-gap: clamp(14px, 2vw, 20px);
  padding-bottom: clamp(56px, 8vw, 104px);
  color: var(--text);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumbs {
  padding: 22px 0 6px;
}
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--text-dim);
}
.page-faq .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}
.page-faq .breadcrumb-list a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur);
}
.page-faq .breadcrumb-list a:hover,
.page-faq .breadcrumb-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-faq .breadcrumb-list li[aria-current="page"] {
  color: var(--cyan);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 4vw, 52px) 0 clamp(30px, 4vw, 48px);
  border-bottom: var(--faq-rule);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: clamp(120px, 22vw, 260px);
  height: 4px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta));
}
.page-faq .faq-hero .eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-faq .faq-hero h1 {
  max-width: 22ch;
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 70px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--text);
}
.page-faq .faq-hero .lede {
  max-width: 62ch;
  margin: 0 0 26px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 通用章节头 ---------- */
.page-faq .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 18px;
  padding: clamp(40px, 6vw, 68px) 0 clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(24px, 3.4vw, 40px);
}
.page-faq .section-head .section-num {
  grid-row: span 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--cyan);
  text-stroke: 1.5px var(--cyan);
}
.page-faq .section-head h2 {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -.005em;
}
.page-faq .section-head .note {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 01 三步排查 ---------- */
.page-faq .triage-track {
  overflow-x: auto;
  overflow-y: hidden;
  padding-top: 22px;
  margin-top: -22px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-faq .triage-track::-webkit-scrollbar {
  height: 6px;
}
.page-faq .triage-track::-webkit-scrollbar-thumb {
  background: var(--line-strong);
}
.page-faq .triage-list {
  display: flex;
  gap: 0;
  min-width: 780px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .triage-node {
  position: relative;
  flex: 1 1 0;
  min-width: 240px;
  padding: 30px 22px 26px;
  background: var(--panel);
  border: var(--faq-rule);
  border-left: none;
  scroll-snap-align: start;
  transition: box-shadow var(--dur), background var(--dur);
}
.page-faq .triage-node:first-child {
  border-left: var(--faq-rule);
}
.page-faq .triage-node:hover {
  background: var(--panel-2);
  box-shadow: var(--shadow-hard);
}
.page-faq .triage-dot {
  position: absolute;
  top: -11px;
  left: 22px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--cyan);
  border: 2px solid var(--ink);
  box-shadow: 0 0 0 3px rgba(33, 231, 208, .22);
}
.page-faq .triage-node::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 42px;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(33, 231, 208, .05));
  opacity: .5;
}
.page-faq .triage-node:last-child::after {
  display: none;
}
.page-faq .triage-idx {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}
.page-faq .triage-node h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
}
.page-faq .triage-node p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-dim);
}
.page-faq .triage-node .triage-act {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  position: relative;
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: var(--faq-rule);
  background:
    repeating-linear-gradient(90deg, rgba(33, 231, 208, .07) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(0deg, rgba(255, 63, 164, .05) 0 1px, transparent 1px 44px),
    var(--ink-2);
  overflow: hidden;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  mix-blend-mode: lighten;
}
.page-faq .faq-figure--tree {
  max-height: 420px;
}
.page-faq .faq-figure--search {
  max-height: 300px;
}

/* ---------- 02 查询说明 ---------- */
.page-faq .faq-query__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}
.page-faq .query-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-faq .query-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.page-faq .query-steps__n {
  grid-row: span 2;
  align-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  background: var(--cyan);
  border: 2px solid var(--ink-deep);
  box-shadow: 3px 3px 0 0 rgba(255, 63, 164, .35);
}
.page-faq .query-steps h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.45;
}
.page-faq .query-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-query__card {
  padding: clamp(20px, 2.6vw, 30px);
  border: 2px solid var(--ink-deep);
  box-shadow: var(--shadow-mag);
}
.page-faq .faq-query__card-label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--magenta);
}
.page-faq .faq-query__card h3 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink-deep);
}
.page-faq .diff-demo {
  margin: 0 0 16px;
  padding: 0;
  border-top: 1px solid rgba(28, 22, 17, .2);
}
.page-faq .diff-demo__row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(28, 22, 17, .2);
}
.page-faq .diff-demo__row dt {
  font-size: 12.5px;
  font-weight: 700;
  color: rgba(28, 22, 17, .62);
}
.page-faq .diff-demo__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-deep);
  word-break: break-word;
}
.page-faq .faq-query__card .note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(28, 22, 17, .7);
}

/* ---------- 03 五类问答 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}
.page-faq .faq-group {
  margin-bottom: clamp(26px, 3.6vw, 40px);
}
.page-faq .faq-group:last-child {
  margin-bottom: 0;
}
.page-faq .faq-group__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--text);
}

.page-faq .qa {
  position: relative;
  border: 2px solid var(--line-strong);
  border-bottom: none;
  background: var(--panel);
  transition: background var(--dur);
}
.page-faq .qa:last-of-type {
  border-bottom: 2px solid var(--line-strong);
}
.page-faq .qa[open] {
  background: var(--panel-2);
  box-shadow: inset 4px 0 0 0 var(--cyan);
}
.page-faq .qa[open] .qa__chev {
  transform: rotate(45deg);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur);
}
.page-faq .qa summary::-webkit-details-marker {
  display: none;
}
.page-faq .qa summary:hover .qa__q,
.page-faq .qa summary:focus-visible .qa__q {
  color: var(--cyan);
}
.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}
.page-faq .qa__q {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  transition: color var(--dur);
}
.page-faq .qa__chev {
  flex: 0 0 auto;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  border: 2px solid var(--line-strong);
  border-radius: 50%;
  transition: transform var(--dur), background var(--dur), border-color var(--dur);
}
.page-faq .qa__chev::before,
.page-faq .qa__chev::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 7px;
  height: 2px;
  background: var(--text-dim);
  transform: translate(-50%, -50%);
}
.page-faq .qa__chev::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.page-faq .qa__body {
  padding: 0 20px 20px;
  border-top: 1px solid var(--line);
}
.page-faq .qa__body p {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}
.page-faq .qa__body a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 43, .45);
  transition: color var(--dur), border-color var(--dur);
}
.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 侧栏 ---------- */
.page-faq .faq-side__inner {
  padding: 22px 20px;
  background: var(--ink-2);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-side__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--magenta);
}
.page-faq .faq-side__inner h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
}
.page-faq .faq-side__field {
  display: block;
  margin-bottom: 12px;
}
.page-faq .faq-side__field .search-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  background: var(--ink);
  border: 2px solid var(--line-strong);
  outline: none;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.page-faq .faq-side__field .search-input::placeholder {
  color: var(--placeholder);
}
.page-faq .faq-side__field .search-input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 2px rgba(255, 138, 43, .28);
}
.page-faq .faq-side__inner .note {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-faq .faq-side__block {
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
}
.page-faq .faq-side__block + .faq-side__block {
  margin-top: 18px;
}
.page-faq .faq-side__block-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-faq .faq-side__tips,
.page-faq .faq-side__links {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-side__tips li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 9px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}
.page-faq .faq-side__tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--magenta);
}
.page-faq .faq-side__links li {
  margin-bottom: 8px;
}
.page-faq .faq-side__links a {
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--dur), border-color var(--dur);
}
.page-faq .faq-side__links a:hover,
.page-faq .faq-side__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 04 检索技巧 ---------- */
.page-faq .faq-search-help__grid {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
}
.page-faq .faq-search-help__col {
  padding: 22px 20px;
  background: var(--panel);
  border: 2px solid var(--line-strong);
  transition: transform var(--dur), box-shadow var(--dur), background var(--dur);
}
.page-faq .faq-search-help__col:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
  background: var(--panel-2);
}
.page-faq .faq-search-help__col h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
}
.page-faq .faq-search-help__col h3 .mono {
  font-size: 13px;
  color: var(--amber);
}
.page-faq .faq-search-help__col p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 05 反馈 ---------- */
.page-faq .faq-feedback__grid {
  display: grid;
  gap: clamp(24px, 3vw, 36px);
}
.page-faq .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}
.page-faq .checklist li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-faq .checklist li:first-child {
  border-top: 1px solid var(--line);
}
.page-faq .checklist__n {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  color: var(--ink);
  background: var(--orange);
  border: 2px solid var(--ink-deep);
}
.page-faq .checklist__t {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.page-faq .faq-feedback__card {
  padding: clamp(20px, 2.6vw, 30px);
  border: 2px solid var(--ink-deep);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-feedback__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--magenta);
}
.page-faq .faq-feedback__card h3 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  color: var(--ink-deep);
}
.page-faq .contact-list {
  margin: 0 0 16px;
  padding: 0;
}
.page-faq .contact-list__row {
  display: grid;
  gap: 4px;
  padding: 11px 0;
  border-top: 1px solid rgba(28, 22, 17, .2);
}
.page-faq .contact-list__row dt {
  font-size: 12.5px;
  font-weight: 700;
  color: rgba(28, 22, 17, .6);
}
.page-faq .contact-list__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-deep);
  word-break: break-word;
}
.page-faq .contact-list__row dd a {
  color: var(--ink-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  transition: color var(--dur), border-color var(--dur);
}
.page-faq .contact-list__row dd a:hover,
.page-faq .contact-list__row dd a:focus-visible {
  color: var(--magenta);
  border-bottom-color: var(--magenta);
}
.page-faq .faq-feedback__card .note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(28, 22, 17, .72);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-closing {
  margin-top: clamp(48px, 7vw, 84px);
}
.page-faq .faq-closing__inner {
  position: relative;
  padding: clamp(28px, 4vw, 52px) clamp(22px, 3.4vw, 46px);
  background:
    linear-gradient(120deg, rgba(33, 231, 208, .12), rgba(255, 63, 164, .12)),
    var(--panel);
  border: var(--faq-rule);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-closing__inner::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 70px;
  height: 4px;
  background: var(--orange);
}
.page-faq .faq-closing .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}
.page-faq .faq-closing h2 {
  max-width: 22ch;
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.15;
}
.page-faq .faq-closing p {
  max-width: 60ch;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-faq .faq-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.page-faq .faq-closing__actions .btn {
  display: inline-block;
  padding: 13px 24px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  background: transparent;
  border: 2px solid var(--line-strong);
  transition: transform var(--dur), box-shadow var(--dur), border-color var(--dur), color var(--dur);
}
.page-faq .faq-closing__actions .btn:hover,
.page-faq .faq-closing__actions .btn:focus-visible {
  transform: translate(-2px, -2px);
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-closing__actions .btn-cta {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}
.page-faq .faq-closing__actions .btn-cta:hover,
.page-faq .faq-closing__actions .btn-cta:focus-visible {
  color: var(--ink);
  border-color: var(--magenta);
  box-shadow: var(--shadow-mag);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-search-help__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-faq .contact-list__row {
    grid-template-columns: 90px 1fr;
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-faq .triage-track {
    overflow: visible;
    padding-top: 0;
    margin-top: 0;
  }
  .page-faq .triage-list {
    min-width: 0;
  }
  .page-faq .faq-query__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }
  .page-faq .faq-side__inner {
    position: sticky;
    top: 28px;
  }
}

@media (max-width: 819px) {
  .page-faq .triage-track {
    margin-inline: calc(var(--pad-x) * -1);
    padding-inline: var(--pad-x);
  }
  .page-faq .triage-list {
    min-width: 0;
  }
  .page-faq .triage-node {
    flex: 0 0 84vw;
    max-width: 340px;
  }
  .page-faq .triage-node::after {
    display: none;
  }
  .page-faq .section-head {
    grid-template-columns: 1fr;
  }
  .page-faq .section-head .section-num {
    grid-row: auto;
  }
  .page-faq .section-head h2,
  .page-faq .section-head .note {
    grid-column: 1;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-hero h1 {
    max-width: none;
  }
  .page-faq .faq-query__card {
    box-shadow: 4px 4px 0 0 rgba(255, 63, 164, .22);
  }
  .page-faq .query-steps li {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .page-faq .query-steps__n {
    grid-row: auto;
  }
  .page-faq .diff-demo__row {
    grid-template-columns: 1fr;
    gap: 3px;
  }
  .page-faq .faq-closing__actions .btn {
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }
}
<<<END>>>