.page-faq {
  --faq-hair: rgba(244, 241, 234, 0.14);
  --faq-hair-soft: rgba(244, 241, 234, 0.08);
  --faq-line-dark: rgba(11, 27, 43, 0.14);
  --faq-pad: clamp(3rem, 7vw, 5.5rem);
  --faq-gutter: clamp(1rem, 4vw, 3.5rem);
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--faq-gutter);
}

/* ── 顶部与面包屑 ── */
.page-faq .faq-topbar {
  background: var(--ink-900);
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--slate-600);
}

.page-faq .breadcrumb a {
  color: var(--cool-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ── 眉标 ── */
.page-faq .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--orange);
  flex: none;
}

/* ── 首屏 ── */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 3.25rem) 0 clamp(3rem, 7vw, 5rem);
  background-color: var(--ink-900);
  background-image: var(--tex-diag);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 7.4vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__title span {
  display: block;
  color: var(--orange);
}

.page-faq .faq-hero__lead {
  max-width: 36em;
  margin: clamp(1.25rem, 3vw, 1.85rem) 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--cool-400);
}

/* 页内锚点 */
.page-faq .faq-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.35rem;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0.85rem 0;
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-anchors a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--cool-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-anchors a:hover,
.page-faq .faq-anchors a.is-current {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ── 双列 ── */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-col {
  padding: 1.5rem 0 1.75rem 1.15rem;
  border-left: 3px solid var(--cyan);
}

.page-faq .faq-col--old {
  border-left-color: var(--orange);
  background: linear-gradient(180deg, rgba(255, 106, 43, 0.06), transparent 70%);
}

.page-faq .faq-col__head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-bottom: 0.6rem;
}

.page-faq .faq-col__idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-faq .faq-col__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.4vw, 2.15rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.page-faq .faq-col--old .faq-col__title {
  font-weight: 600;
  font-size: clamp(1.25rem, 3.4vw, 1.65rem);
  color: var(--paper);
}

.page-faq .faq-col__note {
  margin: 0 0 1.1rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--cool-400);
  max-width: 30em;
}

.page-faq .faq-col__foot {
  margin: 1.1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--dim);
}

.page-faq .faq-textlink {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 214, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-textlink:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 六步迷你清单 */
.page-faq .faq-mini {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-faq .faq-mini li {
  display: grid;
  grid-template-columns: 2.1rem 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.72rem 0;
  border-bottom: 1px dashed var(--faq-hair-soft);
  font-size: 0.94rem;
}

.page-faq .faq-mini li:first-child {
  border-top: 1px dashed var(--faq-hair-soft);
}

.page-faq .faq-mini__n {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-faq .faq-mini__t {
  color: var(--paper);
}

.page-faq .faq-mini__d {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--dim);
  white-space: nowrap;
}

/* 右列入场链接 */
.page-faq .faq-links {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
}

.page-faq .faq-links li {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-links li:last-child {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  color: var(--paper);
  text-decoration: none;
  font-size: 0.94rem;
  line-height: 1.5;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-links a span {
  font-family: var(--font-mono);
  color: var(--orange);
  flex: none;
}

.page-faq .faq-links a:hover {
  color: var(--orange-soft);
  padding-left: 0.35rem;
}

/* ── 媒体 ── */
.page-faq .faq-media {
  margin: 0;
  border: 1px solid var(--faq-hair);
  background-color: var(--ink-800);
  background-image: var(--tex-diag);
  overflow: hidden;
}

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

.page-faq .faq-media--wide {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  border-color: var(--warm-200);
  background-color: var(--warm-200);
}

/* ── 通用区块 ── */
.page-faq .faq-block {
  padding-block: var(--faq-pad);
  border-top: 1px solid var(--faq-hair-soft);
}

.page-faq .faq-h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 5vw, 3.1rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.page-faq .faq-sub {
  max-width: 34em;
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--cool-400);
}

/* ── 起步路径（纸白） ── */
.page-faq .faq-path {
  background-color: var(--paper);
  background-image: none;
  color: var(--ink-900);
  border-top: 0;
}

.page-faq .faq-path .eyebrow {
  color: var(--slate-600);
}

.page-faq .faq-path .faq-sub {
  color: var(--slate-600);
}

.page-faq .faq-path__grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 3rem;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 1.02rem;
  top: 2.3rem;
  bottom: -1.4rem;
  width: 1px;
  background: var(--warm-200);
}

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

.page-faq .faq-step__dot {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 2.05rem;
  height: 2.05rem;
  border-radius: 50%;
  border: 1px solid var(--orange);
  background: var(--paper);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-step__body h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-900);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
}

.page-faq .faq-step__time {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--slate-600);
  border: 1px solid var(--warm-200);
  padding: 1px 6px;
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--slate-600);
}

/* ── 分类索引 ── */
.page-faq .faq-cats {
  background-color: var(--ink-800);
  background-image: var(--tex-diag);
}

.page-faq .faq-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  background: var(--ink-800);
  padding: 1.35rem 1.25rem 1.5rem;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  background: var(--ink-700);
  border-color: var(--orange);
  outline: none;
}

.page-faq .faq-cat__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.page-faq .faq-cat__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-faq .faq-cat__state {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--cool-400);
}

.page-faq .faq-cat__square {
  width: 8px;
  height: 8px;
  display: inline-block;
  background: var(--orange);
}

.page-faq .faq-cat__square--live {
  background: var(--cyan);
}

.page-faq .faq-cat__square--wait {
  background: var(--orange);
}

.page-faq .faq-cat__square--warn {
  background: var(--amber);
}

.page-faq .faq-cat__name {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.page-faq .faq-cat__desc {
  margin: 0 0 1.1rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--cool-400);
}

.page-faq .faq-cat__meta {
  margin: auto 0 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--dim);
}

.page-faq .faq-cat__num {
  font-size: 1.35rem;
  color: var(--cyan);
  margin-right: 0.25rem;
  letter-spacing: 0;
}

/* ── 高频问答 ── */
.page-faq .faq-hot {
  background-color: var(--paper);
  color: var(--ink-900);
}

.page-faq .faq-hot .eyebrow {
  color: var(--slate-600);
}

.page-faq .faq-hot .faq-sub {
  color: var(--slate-600);
}

.page-faq .faq-acc {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  border-top: 1px solid var(--warm-200);
}

.page-faq .faq-acc details {
  border-bottom: 1px solid var(--warm-200);
  transition: box-shadow 0.25s var(--ease);
}

.page-faq .faq-acc details[open] {
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-faq .faq-acc summary {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 1.05rem 0.35rem 1.05rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink-900);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

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

.page-faq .faq-acc summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--orange);
  flex: none;
}

.page-faq .faq-acc details[open] summary::after {
  content: "\2212";
}

.page-faq .faq-acc details[open] summary,
.page-faq .faq-acc details[open] .faq-acc__body {
  padding-left: 1rem;
}

.page-faq .faq-acc summary:hover {
  color: var(--orange);
}

.page-faq .faq-acc__n {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--slate-600);
  flex: none;
}

.page-faq .faq-acc__body {
  padding: 0 0.35rem 1.35rem 0;
  transition: padding-left 0.2s var(--ease);
}

.page-faq .faq-acc__body p {
  margin: 0;
  max-width: 46em;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--slate-600);
}

.page-faq .faq-acc__body p strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--ink-900);
  font-weight: 700;
}

/* ── 版本排查 ── */
.page-faq .faq-trouble {
  background-color: var(--ink-900);
  background-image: var(--tex-diag);
}

.page-faq .faq-trouble__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-cut {
  --cut: 12px;
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--faq-hair);
  padding: 1.5rem 1.3rem 1.4rem;
  clip-path: polygon(
    var(--cut) 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%,
    0 var(--cut)
  );
}

.page-faq .faq-cut__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-ordered {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-ordered li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 1.9rem;
  margin-bottom: 0.7rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--cool-400);
}

.page-faq .faq-ordered li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-faq .faq-ordered li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-cut__note {
  margin: 1.1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--faq-hair);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--dim);
}

/* ── 继续求助 ── */
.page-faq .faq-help {
  background-color: var(--ink-800);
  padding-bottom: calc(var(--faq-pad) + 1rem);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-help__item {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.3rem;
  background: rgba(11, 27, 43, 0.55);
  border: 1px solid var(--faq-hair);
  transition: border-color 0.25s var(--ease);
}

.page-faq .faq-help__item:hover {
  border-color: var(--orange);
}

.page-faq .faq-help__item--contact {
  border-color: rgba(55, 230, 214, 0.35);
}

.page-faq .faq-help__idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 0.85rem;
}

.page-faq .faq-help__item h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-help__item p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--cool-400);
}

.page-faq .faq-help__line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: baseline;
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.page-faq .faq-help__key {
  color: var(--dim);
  letter-spacing: 0.06em;
  flex: none;
}

.page-faq .faq-help__line a {
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(55, 230, 214, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-help__line a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .faq-btn {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding: 0.68rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--faq-hair);
  background: transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateX(-2px);
}

.page-faq .faq-copy {
  align-self: flex-start;
  margin: 0 0 1rem;
  padding: 0.5rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--faq-hair);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy.is-copied {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ── 响应式 ── */
@media (min-width: 640px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-path__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem 2rem;
  }

  .page-faq .faq-step::before {
    display: none;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-faq .faq-col {
    padding: 0 0 1rem 0;
    border-left: 0;
    border-top: 3px solid var(--cyan);
    background: none;
    padding-top: 1.6rem;
  }

  .page-faq .faq-col--old {
    border-top-color: var(--orange);
  }

  .page-faq .faq-col--new {
    padding-right: clamp(1.5rem, 4vw, 3rem);
  }

  .page-faq .faq-col--old {
    border-left: 1px solid var(--faq-hair);
    padding-left: clamp(1.5rem, 4vw, 3rem);
    padding-right: 0;
  }

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

  .page-faq .faq-trouble__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-path__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}