/* ================= 问题排查页 page-faq ================= */
.page-faq {
  --faq-rail: 228px;
  --faq-gap: 1rem;
  background: var(--ink-900);
  color: var(--cream);
}

.page-faq [id] {
  scroll-margin-top: 6.5rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.2rem, 6vw, 4.2rem) 0 clamp(1.8rem, 4vw, 3rem);
  background:
    radial-gradient(120% 92% at 86% 6%, rgba(200, 107, 60, 0.3), transparent 62%),
    linear-gradient(180deg, var(--ink-900), var(--ink-800));
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -58%;
  width: 78%;
  height: 66%;
  background: linear-gradient(120deg, rgba(47, 212, 255, 0.16), transparent 70%);
  transform: skewY(-7deg);
  pointer-events: none;
}

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

.page-faq .faq-hero .pmt-crumbs {
  margin-bottom: 1.1rem;
}

.page-faq .faq-hero h1 {
  margin: 0.65rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 6.4vw, 3.35rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  max-width: 17ch;
}

.page-faq .faq-hero__lead {
  margin: 1.15rem 0 0;
  max-width: 62ch;
  font-size: clamp(0.95rem, 2.4vw, 1.03rem);
  line-height: 1.85;
  color: rgba(244, 237, 228, 0.8);
}

.page-faq .faq-quickbar {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-mid);
  border-left: 3px solid var(--lava);
  border-radius: var(--radius);
  background: rgba(43, 35, 32, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-faq .faq-quickbar__note {
  margin: 0 0 0 auto;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 症状对照 ---------- */
.page-faq .faq-triage__intro {
  margin: 0.7rem 0 0;
  max-width: 58ch;
  color: rgba(244, 237, 228, 0.72);
  line-height: 1.8;
}

.page-faq .faq-triage__grid {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-triage__item {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.2rem 1.15rem 1.05rem;
  border-left: 3px solid var(--ochre);
}

.page-faq .faq-triage__item h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.03rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-triage__item p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.72;
  color: rgba(244, 237, 228, 0.74);
}

.page-faq .faq-triage__badge {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  padding: 0.16rem 0.5rem;
  border-radius: var(--radius);
  color: var(--ink-900);
}

.page-faq .faq-triage__badge--neon {
  background: var(--neon);
}

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

.page-faq .faq-triage__badge--zap {
  background: var(--zap);
}

.page-faq .faq-triage__link {
  align-self: flex-start;
  margin-top: auto;
  padding-bottom: 2px;
  font-size: 0.85rem;
  color: var(--zap);
  text-decoration: none;
  border-bottom: 1px solid var(--ochre-line);
}

.page-faq .faq-triage__link:hover,
.page-faq .faq-triage__link:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--zap);
}

/* ---------- 分步排查 ---------- */
.page-faq .faq-walk__intro {
  margin: 0.7rem 0 0;
  max-width: 60ch;
  color: rgba(244, 237, 228, 0.72);
  line-height: 1.8;
}

.page-faq .faq-walk__layout {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.3rem, 4vw, 2.2rem);
}

.page-faq .faq-tree {
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-faq .faq-tree__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-tree__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.2rem;
}

.page-faq .faq-tree__list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 0.87rem;
  color: rgba(244, 237, 228, 0.82);
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-faq .faq-tree__list a .pmt-num {
  color: var(--neon);
  font-size: 0.76rem;
}

.page-faq .faq-tree__list a:hover,
.page-faq .faq-tree__list a:focus-visible {
  background: rgba(47, 212, 255, 0.1);
  border-left-color: var(--zap);
  color: var(--cream);
}

.page-faq .faq-block {
  padding: clamp(1.15rem, 3vw, 1.75rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(43, 35, 32, 0.92), rgba(28, 23, 18, 0.92));
}

.page-faq .faq-block + .faq-block {
  margin-top: 1.2rem;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.page-faq .faq-block__num {
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-faq .faq-block__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 3.4vw, 1.45rem);
  line-height: 1.35;
}

.page-faq .faq-block__lead {
  margin: 0.85rem 0 0;
  max-width: 62ch;
  line-height: 1.85;
  color: rgba(244, 237, 228, 0.82);
}

.page-faq .faq-media {
  margin: 1.25rem 0 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-steps__hint {
  margin: 1.1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0.7rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(28, 23, 18, 0.66);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--line-mid);
}

.page-faq .faq-step:has(.faq-step__check:checked) {
  border-color: rgba(57, 255, 136, 0.45);
  background: rgba(57, 255, 136, 0.06);
}

.page-faq .faq-step__check {
  appearance: none;
  -webkit-appearance: none;
  width: 1.3rem;
  height: 1.3rem;
  margin: 0.1rem 0 0;
  border: 1.5px solid var(--ochre-line);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
  display: grid;
  place-items: center;
  position: relative;
}

.page-faq .faq-step__check::after {
  content: "";
  width: 0.32rem;
  height: 0.58rem;
  margin-top: -2px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(45deg) scale(0);
  transition: transform 0.16s ease;
}

.page-faq .faq-step__check:checked {
  background: var(--neon);
  border-color: var(--neon);
}

.page-faq .faq-step__check:checked::after {
  transform: rotate(45deg) scale(1);
}

.page-faq .faq-step__check:focus-visible {
  outline: 2px solid var(--zap);
  outline-offset: 2px;
}

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

.page-faq .faq-step__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.55;
}

.page-faq .faq-step__body p:last-child {
  margin: 0.25rem 0 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: rgba(244, 237, 228, 0.72);
}

.page-faq .faq-points {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  line-height: 1.78;
  color: rgba(244, 237, 228, 0.8);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.42rem;
  height: 0.42rem;
  background: var(--neon);
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-points strong {
  color: var(--cream);
}

.page-faq .faq-block__more {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: rgba(244, 237, 228, 0.72);
}

.page-faq .faq-block__more a {
  color: var(--zap);
  text-decoration: none;
  border-bottom: 1px solid var(--ochre-line);
}

.page-faq .faq-block__more a:hover,
.page-faq .faq-block__more a:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--zap);
}

/* ---------- 路径示意 ---------- */
.page-faq .faq-flow {
  margin: 1.8rem 0 0;
  padding: 1.1rem;
  border: 1px dashed var(--ochre-line);
  border-radius: var(--radius);
  background: rgba(43, 35, 32, 0.5);
}

.page-faq .faq-flow__cap {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-flow__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-flow__scroll:focus-visible {
  outline: 2px solid var(--zap);
  outline-offset: 4px;
}

.page-faq .faq-flow__svg {
  display: block;
  width: 100%;
  min-width: 620px;
  height: auto;
}

.page-faq .faq-flow__svg text {
  font-family: var(--font-mono);
  font-size: 18px;
}

/* ---------- 缓存清理 ---------- */
.page-faq .faq-cache {
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-cache__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-faq .faq-cache__intro p {
  margin: 0.9rem 0 0;
  max-width: 56ch;
  line-height: 1.85;
  color: rgba(244, 237, 228, 0.78);
}

.page-faq .faq-cache__hint {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-cache__text {
  margin: 0.5rem 0 0 !important;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.9;
  color: var(--amber);
  background: rgba(255, 209, 102, 0.08);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  word-break: break-word;
}

.page-faq .faq-cache__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-faq .faq-cache__steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink-900);
}

.page-faq .faq-cache__idx {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1.35;
  color: var(--lava);
}

.page-faq .faq-cache__steps h3 {
  margin: 0;
  font-size: 0.97rem;
  font-weight: 700;
}

.page-faq .faq-cache__steps p {
  margin: 0.3rem 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: rgba(244, 237, 228, 0.72);
}

/* ---------- 极速通道 ---------- */
.page-faq .faq-express__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.2rem, 4vw, 2.2rem);
  padding: clamp(1.3rem, 4vw, 2.2rem);
  border: 1px solid rgba(200, 107, 60, 0.42);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(200, 107, 60, 0.24), transparent 55%),
    rgba(43, 35, 32, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-deep);
}

.page-faq .faq-express__copy p {
  margin: 0.9rem 0 0;
  line-height: 1.85;
  color: rgba(244, 237, 228, 0.8);
}

.page-faq .faq-express__list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-express__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(244, 237, 228, 0.78);
}

.page-faq .faq-express__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 0.4rem;
  height: 0.4rem;
  background: var(--lava);
  transform: translateY(-50%);
}

.page-faq .faq-express__actions {
  margin-top: 1.35rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-express__media {
  margin: 0;
  border: 1px solid var(--line-mid);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-900);
}

.page-faq .faq-express__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 反馈入口 ---------- */
.page-faq .faq-feedback .pmt-section__head p {
  margin: 0.7rem 0 0;
  max-width: 58ch;
  line-height: 1.8;
  color: rgba(244, 237, 228, 0.74);
}

.page-faq .faq-feedback__grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-feedback__list h3,
.page-faq .faq-feedback__contact h3 {
  margin: 0;
  font-size: 1rem;
  font-family: var(--font-body);
}

.page-faq .faq-feedback__contact ul {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .faq-feedback__contact li {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 0.9rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-feedback__contact li span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-feedback__note {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: rgba(244, 237, 228, 0.7);
}

/* ---------- 折叠排查项 ---------- */
.page-faq .faq-more__folds {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.6rem;
}

.page-faq .faq-fold {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(43, 35, 32, 0.6);
}

.page-faq .faq-fold[open] {
  border-color: var(--ochre-line);
}

.page-faq .faq-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  font-size: 0.94rem;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-fold[open] summary::after {
  content: "–";
}

.page-faq .faq-fold summary:focus-visible {
  outline: 2px solid var(--zap);
  outline-offset: -2px;
}

.page-faq .faq-fold__body {
  padding: 0 1.1rem 1.1rem;
}

.page-faq .faq-fold__body p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.82;
  color: rgba(244, 237, 228, 0.76);
}

.page-faq .faq-fold__body a {
  color: var(--zap);
  text-decoration: none;
  border-bottom: 1px solid var(--ochre-line);
}

.page-faq .faq-fold__body a:hover,
.page-faq .faq-fold__body a:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--zap);
}

/* ---------- 断点 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-quickbar__note {
    margin-left: 0;
    flex-basis: 100%;
  }

  .page-faq .faq-express__actions .pmt-btn {
    width: 100%;
    text-align: center;
  }
}

@media (min-width: 700px) {
  .page-faq .faq-triage__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-cache__layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-faq .faq-express__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }
}

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

  .page-faq .faq-walk__layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-tree {
    position: sticky;
    top: 6.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step__check::after,
  .page-faq .faq-tree__list a {
    transition: none;
  }
}