.page-faq {
  padding-bottom: clamp(56px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero__main {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

.page-faq .faq-hero__headline .index-label {
  color: var(--cyan);
  display: block;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero__intro {
  margin: 0;
  font-size: clamp(14.5px, 1.1vw, 16.5px);
  line-height: 1.8;
  color: var(--text);
  max-width: 48ch;
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hero__facts li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero__k {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cold);
}

.page-faq .faq-hero__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13.5px;
  color: var(--cyan);
}

.page-faq .faq-hero__media {
  margin-top: clamp(22px, 3.5vw, 42px);
}

@media (min-width: 960px) {
  .page-faq .faq-hero__main {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    column-gap: clamp(28px, 4vw, 64px);
    align-items: end;
  }
}

/* ---------- 刻度分隔 ---------- */
.page-faq .faq-rule {
  height: 9px;
  margin-top: clamp(28px, 5vw, 54px);
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 11px);
  opacity: 0.8;
}

/* ---------- 三条路径 ---------- */
.page-faq .faq-paths {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-paths__list {
  list-style: none;
  margin: clamp(16px, 2.5vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-faq .faq-path {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 18px 0 0;
  border-top: 1px solid var(--cyan);
}

.page-faq .faq-path__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-faq .faq-path__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.5vw, 19px);
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-path__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text);
  max-width: 34ch;
}

@media (min-width: 760px) {
  .page-faq .faq-paths__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }
  .page-faq .faq-path:nth-child(2) {
    margin-top: 20px;
  }
  .page-faq .faq-path:nth-child(3) {
    margin-top: 40px;
  }
}

/* ---------- 问答区骨架 ---------- */
.page-faq .faq-questions {
  margin-top: clamp(34px, 5vw, 60px);
}

.page-faq .faq-flow {
  margin-top: clamp(14px, 2vw, 22px);
}

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

.page-faq .faq-index {
  display: none;
}

/* ---------- 问题索引 ---------- */
.page-faq .faq-index__group + .faq-index__group {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-index__gtitle {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 6px;
  border-left: 1px solid transparent;
  text-decoration: none;
  color: var(--text);
  font-size: 12px;
  line-height: 1.5;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(0, 229, 160, 0.07);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-faq .faq-index__t {
  color: inherit;
}

@media (min-width: 1120px) {
  .page-faq .faq-flow {
    display: grid;
    grid-template-columns: 186px minmax(0, 1fr);
    column-gap: clamp(22px, 3vw, 40px);
    align-items: start;
  }
  .page-faq .faq-index {
    display: block;
    grid-column: 1;
    position: sticky;
    top: calc(var(--cmd-h) + 18px);
    border: 1px solid var(--line);
    padding: 14px 12px;
    background: rgba(6, 35, 26, 0.45);
  }
  .page-faq .faq-cols {
    grid-column: 2;
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: clamp(17px, 1.6vw, 21px);
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-group__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
  max-width: 66ch;
}

/* ---------- 折叠问答条目 ---------- */
.page-faq .faq-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--cmd-h) + 76px);
}

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-item:target {
  background: rgba(0, 229, 160, 0.07);
}

.page-faq .faq-q {
  display: block;
}

.page-faq .faq-q__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 14px;
  padding: 15px 4px 15px 2px;
  list-style: none;
  cursor: pointer;
  transition: background-color 0.24s var(--ease);
}

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

.page-faq .faq-q__sum::marker {
  content: "";
}

.page-faq .faq-q__sum:hover {
  background: rgba(0, 229, 160, 0.05);
}

.page-faq .faq-q__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold);
  transition: color 0.24s var(--ease);
}

.page-faq .faq-q[open] .faq-q__no,
.page-faq .faq-q__sum:hover .faq-q__no {
  color: var(--cyan);
}

.page-faq .faq-q__text {
  font-size: clamp(14.5px, 1.15vw, 16.5px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-q__ind {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-faq .faq-q__ind::before,
.page-faq .faq-q__ind::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
  transition: transform 0.28s var(--ease), opacity 0.28s var(--ease);
}

.page-faq .faq-q__ind::before {
  width: 12px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__ind::after {
  width: 1px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q[open] .faq-q__ind::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__body {
  display: grid;
  gap: 10px;
  padding: 2px 4px 22px 2px;
  max-width: 76ch;
}

.page-faq .faq-q__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .faq-note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--cold);
  border-top: 1px dashed var(--line-soft);
  padding-top: 9px;
}

.page-faq .faq-inline-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 720px) {
  .page-faq .faq-q__body {
    padding-left: 52px;
  }
}

/* ---------- 口径速查表 ---------- */
.page-faq .faq-ref {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-faq .faq-ref__scroll {
  margin-top: clamp(14px, 2vw, 22px);
  overflow-x: auto;
  border: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-ref__table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .faq-ref__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cold);
  background: rgba(6, 35, 26, 0.5);
}

.page-faq .faq-ref__table th,
.page-faq .faq-ref__table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft);
  line-height: 1.65;
}

.page-faq .faq-ref__table thead th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(6, 35, 26, 0.62);
  white-space: nowrap;
}

.page-faq .faq-ref__table tbody th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12.5px;
  color: var(--paper);
  white-space: nowrap;
}

.page-faq .faq-ref__table tbody td {
  color: var(--text);
}

.page-faq .faq-ref__table tbody tr:hover {
  background: rgba(0, 229, 160, 0.05);
}

/* ---------- 逐轮比对步骤 ---------- */
.page-faq .faq-compare {
  margin-top: clamp(38px, 5.5vw, 68px);
}

.page-faq .faq-compare__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-step__no {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .faq-step__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: 15.5px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-step p {
  grid-column: 2;
  grid-row: 2;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-compare__media {
  margin: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-compare__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
    align-items: start;
  }
}

/* ---------- 纠错流程节点 ---------- */
.page-faq .faq-fix {
  margin-top: clamp(38px, 5.5vw, 68px);
}

.page-faq .faq-fix__grid {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

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

.page-faq .faq-node {
  position: relative;
  padding: 0 0 22px 34px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-node:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-faq .faq-node__no {
  position: absolute;
  left: -1px;
  top: 0;
  transform: translateX(-50%);
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--green-night);
  background: var(--cyan);
}

.page-faq .faq-node__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15.5px;
  letter-spacing: 0.01em;
  color: var(--paper);
  padding-top: 2px;
}

.page-faq .faq-node p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text);
  max-width: 52ch;
}

.page-faq .faq-fix__aside {
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  padding: 18px 16px 20px;
  background: rgba(6, 35, 26, 0.5);
}

.page-faq .faq-fix__aside .index-label {
  color: var(--orange);
}

.page-faq .faq-fix__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-fix__list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-fix__k {
  font-size: 12.5px;
  color: var(--cold);
}

.page-faq .faq-fix__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-fix__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--cold);
}

.page-faq .faq-fix__aside .btn {
  margin-top: 16px;
}

@media (min-width: 900px) {
  .page-faq .faq-fix__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

/* ---------- 焦点与动效偏好 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-q__sum,
  .page-faq .faq-q__no,
  .page-faq .faq-q__ind::before,
  .page-faq .faq-q__ind::after {
    transition: none;
  }
}