.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 28px);
  --faq-cut: 14px;
  color: var(--text);
}

.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--text-dim);
}

/* 首屏 */
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-hero__copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
  font-size: clamp(32px, 6.4vw, 60px);
  max-width: 16ch;
}

.page-faq .faq-hero__copy .lede {
  margin-top: 20px;
  max-width: 52ch;
  color: var(--text-dim);
}

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

.page-faq .faq-hero__stats {
  list-style: none;
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 48px);
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-hero__stats .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
}

.page-faq .faq-hero__stats .label {
  color: var(--text-dim);
}

.page-faq .faq-hero__panel {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(41, 242, 184, 0.1), transparent 60%),
    linear-gradient(165deg, var(--panel-2), var(--panel));
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-hero__panel .label {
  display: block;
  color: var(--accent);
  margin-bottom: 10px;
}

.page-faq .metric-mini {
  margin: 0;
  display: grid;
}

.page-faq .metric-mini > div {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.page-faq .metric-mini > div:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .metric-mini dt {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}

.page-faq .metric-mini dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

/* 热门问题 */
.page-faq .faq-quick .section__head {
  max-width: 62ch;
}

.page-faq .quick-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0 clamp(20px, 3vw, 44px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .qa {
  border-top: 1px solid var(--line);
  padding: 16px 0;
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  transition: color 0.2s ease;
}

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

.page-faq .qa:hover .qa__q,
.page-faq .qa__q:focus-visible {
  color: var(--accent);
}

.page-faq .qa__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding-top: 5px;
}

.page-faq .qa__toggle {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  flex: none;
}

.page-faq .qa__toggle::before,
.page-faq .qa__toggle::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: var(--text-dim);
  transition: transform 0.22s ease, background 0.22s ease;
}

.page-faq .qa__toggle::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa__toggle::after {
  transform: rotate(0deg);
}

.page-faq .qa[open] .qa__toggle::before,
.page-faq .qa[open] .qa__toggle::after {
  background: var(--accent);
}

.page-faq .qa__a {
  padding: 12px 0 4px 38px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .qa--solo {
  border-top: 1px solid var(--line);
  margin-top: 22px;
}

/* 六类说明 */
.page-faq .faq-categories .section__head {
  max-width: 62ch;
}

.page-faq .cat-grid {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .cat-card a {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.page-faq .cat-card a::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 22px;
  height: 22px;
  background: linear-gradient(225deg, var(--line) 0 50%, transparent 50%);
  transition: background 0.22s ease;
}

.page-faq .cat-card a:hover,
.page-faq .cat-card a:focus-visible {
  border-color: var(--accent-dim);
  background: var(--panel-2);
  transform: translateY(-2px);
}

.page-faq .cat-card a:hover::before,
.page-faq .cat-card a:focus-visible::before {
  background: linear-gradient(225deg, var(--accent) 0 50%, transparent 50%);
}

.page-faq .cat-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.page-faq .cat-card__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.page-faq .cat-card__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.page-faq .cat-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-categories__figure {
  margin-top: clamp(28px, 4vw, 44px);
}

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

/* 左侧索引 + 右侧问答流 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(48px, 7vw, 88px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  display: block;
  color: var(--text-dim);
  margin-bottom: 12px;
}

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

.page-faq .faq-index__item {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.26s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--panel-2);
}

.page-faq .faq-index__link:hover::after,
.page-faq .faq-index__link:focus-visible::after {
  transform: scaleX(1);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-faq .faq-index__count {
  display: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  color: var(--text-dim);
}

/* 分类区块 */
.page-faq .faq-cat {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-faq .faq-cat:first-child {
  margin-top: 0;
}

.page-faq .faq-cat__head {
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.page-faq .faq-cat__head::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--accent);
}

.page-faq .faq-cat__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-size: clamp(23px, 3.2vw, 34px);
}

.page-faq .faq-cat__intro {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-cat__body {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-cat__note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--accent-dim);
  background: linear-gradient(90deg, rgba(41, 242, 184, 0.07), transparent 70%);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* 入口说明列表 */
.page-faq .entry-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-faq .entry-points li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .entry-points li:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .entry-points h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .entry-points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 步骤 */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-faq .step {
  position: relative;
  padding: 20px 0 20px 52px;
  border-bottom: 1px solid var(--line);
}

.page-faq .step:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .step__num {
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.page-faq .step__num::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 26px;
  width: 1px;
  height: calc(100% + 20px);
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-faq .step:last-child .step__num::after {
  display: none;
}

.page-faq .step h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* 对照栏目 */
.page-faq .compare-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .compare-split__side {
  padding: clamp(18px, 3vw, 26px);
  background: var(--panel);
}

.page-faq .compare-split__side--live {
  background:
    radial-gradient(90% 70% at 0% 0%, rgba(41, 242, 184, 0.12), transparent 65%),
    var(--panel-2);
}

.page-faq .compare-split__side .label {
  display: block;
  color: var(--text-dim);
}

.page-faq .compare-split__lead {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .compare-split__side--live .compare-split__lead {
  color: var(--accent);
}

.page-faq .compare-split__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .plain-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .plain-list li {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .plain-list li:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .plain-list strong {
  color: var(--text);
  font-weight: 700;
}

.page-faq .plain-list--tight li {
  padding: 11px 0;
}

.page-faq .plain-list--tight {
  margin-top: 14px;
}

/* 字段表 */
.page-faq .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .field-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .field-table th,
.page-faq .field-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.page-faq .field-table thead th {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 700;
  background: var(--panel-2);
}

.page-faq .field-table tbody th {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.page-faq .field-table td.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  white-space: nowrap;
}

.page-faq .field-table td:last-child,
.page-faq .field-table tbody th,
.page-faq .field-table tbody td {
  border-bottom: 1px solid var(--line);
}

.page-faq .field-table tbody tr:last-child th,
.page-faq .field-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .field-table tbody tr:hover th,
.page-faq .field-table tbody tr:hover td {
  background: rgba(19, 28, 43, 0.85);
}

/* 自查区块 —— 版心收窄 */
.page-faq .faq-triage__inner {
  max-width: 780px;
}

.page-faq .triage-line {
  display: block;
  width: 100%;
  max-width: 640px;
  height: auto;
  margin: clamp(20px, 3vw, 30px) auto clamp(6px, 1vw, 14px);
}

.page-faq .triage-line__path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
  stroke-dasharray: 5 6;
}

.page-faq .triage-line__node {
  fill: var(--bg);
  stroke-width: 2.5;
}

.page-faq .triage-line__node--good {
  stroke: var(--accent);
}

.page-faq .triage-line__node--mid {
  stroke: var(--amber);
}

.page-faq .triage-line__node--bad {
  stroke: var(--magenta);
}

.page-faq .triage {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-faq .triage__title {
  display: block;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.page-faq .triage-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .triage-tab {
  cursor: pointer;
  padding: 9px 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-dim);
  font-size: 13.5px;
  letter-spacing: 0.03em;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .triage-tab:hover {
  color: var(--text);
  border-color: var(--line-soft);
}

.page-faq #triage-a:checked ~ .triage-tabs .triage-tab[for="triage-a"],
.page-faq #triage-b:checked ~ .triage-tabs .triage-tab[for="triage-b"],
.page-faq #triage-c:checked ~ .triage-tabs .triage-tab[for="triage-c"] {
  color: var(--ink);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

.page-faq .triage-panels {
  margin-top: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(18px, 3vw, 24px);
}

.page-faq .triage-panel {
  display: none;
}

.page-faq #triage-a:checked ~ .triage-panels [data-panel="a"],
.page-faq #triage-b:checked ~ .triage-panels [data-panel="b"],
.page-faq #triage-c:checked ~ .triage-panels [data-panel="c"] {
  display: block;
  animation: faq-panel-in 0.24s ease both;
}

.page-faq .triage-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

@keyframes faq-panel-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-triage__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

/* 兼容与报错 */
.page-faq .issue-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .issue-list__item {
  position: relative;
  padding: 18px 20px 18px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  background: var(--panel);
}

.page-faq .issue-list__item--mid {
  border-left-color: var(--amber);
}

.page-faq .issue-list__item--bad {
  border-left-color: var(--magenta);
}

.page-faq .issue-list__item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .issue-list__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 收尾 */
.page-faq .faq-contact__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-size: clamp(24px, 3.4vw, 36px);
}

.page-faq .faq-contact__copy .lede {
  margin-top: 16px;
  max-width: 48ch;
  color: var(--text-dim);
}

.page-faq .faq-contact__copy .btn {
  margin-top: 26px;
}

.page-faq .faq-contact__panel {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, var(--panel-2), var(--panel));
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, var(--faq-cut) 100%, 0 calc(100% - var(--faq-cut)));
}

.page-faq .faq-contact__panel .label {
  display: block;
  color: var(--accent);
}

.page-faq .faq-contact__note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 断点 */
@media (min-width: 640px) {
  .page-faq .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

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

  .page-faq .faq-contact__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 112px;
    border-top: 0;
    padding-top: 0;
  }

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

  .page-faq .faq-index__item + .faq-index__item {
    margin-top: 2px;
  }

  .page-faq .faq-index__link {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: baseline;
    width: 100%;
    padding: 11px 10px;
    border: 0;
    border-left: 2px solid var(--line);
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link::after {
    display: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--accent);
    background: linear-gradient(90deg, rgba(41, 242, 184, 0.08), transparent 72%);
  }

  .page-faq .faq-index__count {
    display: inline;
  }

  .page-faq .step {
    padding-left: 64px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__copy h1 {
    max-width: 15ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .cat-card a,
  .page-faq .qa__q,
  .page-faq .qa__toggle::before,
  .page-faq .qa__toggle::after,
  .page-faq .faq-index__link,
  .page-faq .triage-tab {
    transition: none;
  }

  .page-faq .cat-card a:hover {
    transform: none;
  }

  .page-faq #triage-a:checked ~ .triage-panels [data-panel="a"],
  .page-faq #triage-b:checked ~ .triage-panels [data-panel="b"],
  .page-faq #triage-c:checked ~ .triage-panels [data-panel="c"] {
    animation: none;
  }
}