.page-faq {
  --faq-k1: var(--sr-signal);
  --faq-k2: var(--sr-lake);
  --faq-k3: var(--sr-dusk);
  --faq-k4: var(--sr-silver);
  --faq-dash: rgba(201, 214, 228, .28);
  --faq-block: 68px;
  background: var(--sr-deep);
  color: var(--sr-silver);
  overflow-x: hidden;
}

.page-faq .sr-section {
  padding-top: var(--faq-block);
  padding-bottom: var(--faq-block);
}

.page-faq .sr-text,
.page-faq .sr-lead {
  max-width: 66ch;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 100px 0 52px;
  border-bottom: 1px solid var(--sr-line);
  background:
    radial-gradient(112% 86% at 88% 2%, rgba(122, 91, 224, .22), transparent 62%),
    radial-gradient(84% 64% at 2% 18%, rgba(47, 182, 198, .13), transparent 58%);
}

.page-faq .faq-hero .sr-breadcrumb {
  margin: 0 0 34px;
}

.page-faq .faq-hero .sr-breadcrumb a {
  color: var(--sr-dim);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-hero .sr-title {
  margin: 14px 0 20px;
  font-family: var(--sr-display);
  font-size: clamp(2.15rem, 6.4vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: .05em;
  color: var(--sr-white);
}

.page-faq .faq-hero .sr-lead {
  margin: 0;
  font-size: var(--sr-fs-base);
  line-height: 1.82;
  color: var(--sr-silver);
}

.page-faq .faq-hero__side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 20px;
  border-left: 1px dashed var(--faq-dash);
}

.page-faq .faq-hero__sidenum {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: var(--sr-fs-sm);
  color: var(--sr-dim);
}

.page-faq .faq-hero__sidenum .sr-mono {
  font-size: 1.55rem;
  color: var(--sr-signal);
  line-height: 1;
}

/* ---------- 问答列表 ---------- */
.page-faq .faq-ask__head {
  max-width: 64ch;
  margin-bottom: 30px;
}

.page-faq .faq-ask__head .sr-title {
  margin: 12px 0 14px;
}

.page-faq .faq-list {
  border-top: 1px solid var(--sr-line);
}

.page-faq .faq-item {
  position: relative;
  padding-left: 18px;
  border-bottom: 1px solid var(--sr-line);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--sr-signal);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 180ms var(--sr-ease);
}

.page-faq .faq-item[open]::before {
  transform: scaleY(1);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--sr-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--sr-dim);
}

.page-faq .faq-item[open] > summary::after {
  content: "–";
  color: var(--sr-signal);
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  font-size: var(--sr-fs-xs);
  letter-spacing: .1em;
  color: var(--sr-signal);
}

.page-faq .faq-item__q {
  font-family: var(--sr-display);
  font-size: var(--sr-fs-md);
  letter-spacing: .015em;
  color: var(--sr-white);
  transition: color 180ms var(--sr-ease);
}

.page-faq .faq-item > summary:hover .faq-item__q,
.page-faq .faq-item > summary:focus-visible .faq-item__q {
  color: var(--sr-signal);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--sr-lake);
  outline-offset: 4px;
}

.page-faq .faq-item__a {
  padding: 0 0 22px 32px;
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 70ch;
  line-height: 1.8;
  color: var(--sr-silver);
}

.page-faq .faq-item__a a {
  color: var(--sr-lake);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 四类来件 ---------- */
.page-faq .faq-kinds {
  background: var(--sr-night);
  border-top: 1px solid var(--sr-line);
  border-bottom: 1px solid var(--sr-line);
}

.page-faq .faq-kinds__figure {
  margin: 0 0 38px;
}

.page-faq .faq-kinds__head {
  max-width: 62ch;
  margin-bottom: 34px;
}

.page-faq .faq-kinds__head .sr-title {
  margin: 12px 0 14px;
}

.page-faq .faq-kinds__grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-kind {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px;
  border: 1px solid var(--sr-line);
  border-radius: var(--sr-radius);
  background: rgba(6, 17, 31, .6);
  transition: transform 180ms var(--sr-ease), border-color 180ms var(--sr-ease),
    box-shadow 180ms var(--sr-ease);
}

.page-faq .faq-kind:hover {
  transform: translateY(-2px);
  border-color: var(--sr-line-strong);
  box-shadow: var(--sr-shadow);
}

.page-faq .faq-kind[data-kind="fix"]:hover { border-color: var(--faq-k1); }
.page-faq .faq-kind[data-kind="search"]:hover { border-color: var(--faq-k2); }
.page-faq .faq-kind[data-kind="layout"]:hover { border-color: var(--faq-k3); }
.page-faq .faq-kind[data-kind="idea"]:hover { border-color: var(--faq-k4); }

.page-faq .faq-kind__top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.page-faq .faq-kind__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.page-faq .faq-kind[data-kind="fix"] .faq-kind__dot { background: var(--faq-k1); }
.page-faq .faq-kind[data-kind="search"] .faq-kind__dot { background: var(--faq-k2); }
.page-faq .faq-kind[data-kind="layout"] .faq-kind__dot { background: var(--faq-k3); }
.page-faq .faq-kind[data-kind="idea"] .faq-kind__dot { background: var(--faq-k4); }

.page-faq .faq-kind__name {
  font-family: var(--sr-display);
  font-size: var(--sr-fs-md);
  letter-spacing: .05em;
  color: var(--sr-white);
}

.page-faq .faq-kind__body {
  margin: 0;
  font-size: var(--sr-fs-sm);
  line-height: 1.8;
  color: var(--sr-silver);
}

.page-faq .faq-kind .sr-tag {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 提交要点 ---------- */
.page-faq .faq-submit__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-submit h2.sr-title {
  margin: 12px 0 26px;
}

.page-faq .faq-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--faq-dash);
}

.page-faq .faq-checklist li {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--faq-dash);
  font-family: var(--sr-mono);
  font-size: var(--sr-fs-sm);
  line-height: 1.7;
  color: var(--sr-silver);
}

.page-faq .faq-box {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border: 1px solid var(--sr-lake);
}

.page-faq .faq-submit__aside {
  align-self: start;
}

.page-faq .faq-submit__aside-title {
  margin: 0 0 12px;
  font-family: var(--sr-display);
  font-size: var(--sr-fs-md);
  letter-spacing: .05em;
  color: var(--sr-ink);
}

.page-faq .faq-submit__aside p {
  margin: 0 0 14px;
  line-height: 1.8;
  color: #3B3128;
}

.page-faq .faq-submit__aside-link {
  margin: 0;
}

.page-faq .faq-submit__aside-link a {
  color: var(--sr-press);
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 69, 31, .45);
  padding-bottom: 1px;
}

.page-faq .faq-submit__aside-link a:hover {
  border-bottom-color: var(--sr-press);
}

/* ---------- 流程轨道 ---------- */
.page-faq .faq-flow {
  border-top: 1px solid var(--sr-line);
}

.page-faq .faq-flow__grid {
  display: grid;
  gap: 38px;
}

.page-faq .faq-flow h2.sr-title {
  margin: 12px 0 30px;
}

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

.page-faq .faq-step {
  position: relative;
  padding: 0 0 26px 32px;
  border-left: 1px dashed var(--faq-dash);
}

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

.page-faq .faq-step__dot {
  position: absolute;
  left: -6px;
  top: 3px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--sr-deep);
  border: 2px solid var(--sr-signal);
  transition: transform 180ms var(--sr-ease), background 180ms var(--sr-ease);
}

.page-faq .faq-step:hover .faq-step__dot {
  transform: scale(1.25);
  background: var(--sr-signal);
}

.page-faq .faq-step__num {
  margin: 0 0 6px;
  font-size: var(--sr-fs-xs);
  letter-spacing: .12em;
  color: var(--sr-dim);
}

.page-faq .faq-step__name {
  margin: 0 0 6px;
  font-family: var(--sr-display);
  font-size: var(--sr-fs-base);
  letter-spacing: .05em;
  color: var(--sr-white);
}

.page-faq .faq-step__desc {
  margin: 0;
  max-width: 46ch;
  font-size: var(--sr-fs-sm);
  line-height: 1.78;
  color: var(--sr-dim);
}

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

/* ---------- 联系 ---------- */
.page-faq .faq-contact__inner {
  display: grid;
  gap: 30px;
}

.page-faq .faq-contact__text h2 {
  margin: 0 0 16px;
  font-family: var(--sr-display);
  font-size: var(--sr-fs-lg);
  line-height: 1.2;
  letter-spacing: .05em;
  color: var(--sr-ink);
}

.page-faq .faq-contact__text p {
  margin: 0 0 14px;
  max-width: 58ch;
  line-height: 1.82;
  color: #3B3128;
}

.page-faq .faq-contact__tip {
  font-size: var(--sr-fs-sm);
  color: var(--sr-press);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(26, 20, 16, .16);
}

.page-faq .faq-contact__item {
  padding: 14px 0;
  border-bottom: 1px solid rgba(26, 20, 16, .16);
}

.page-faq .faq-contact__item dt {
  margin-bottom: 4px;
  font-size: var(--sr-fs-xs);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sr-press);
}

.page-faq .faq-contact__item dd {
  margin: 0;
  font-size: var(--sr-fs-sm);
  line-height: 1.7;
  color: var(--sr-ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-console-wrap {
  padding-bottom: 88px;
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-kinds__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-contact__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr);
    align-items: start;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-faq {
    --faq-block: 104px;
  }

  .page-faq .faq-hero {
    padding: 152px 0 72px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .72fr);
    align-items: end;
    gap: 48px;
  }

  .page-faq .faq-hero .sr-breadcrumb {
    margin-bottom: 46px;
  }

  .page-faq .faq-kinds__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-submit__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .85fr);
    gap: 48px;
  }

  .page-faq .faq-flow__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .72fr);
    align-items: start;
    gap: 52px;
  }

  .page-faq .faq-flow__track {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-step {
    padding: 26px 16px 0 0;
    border-left: 0;
    border-top: 1px dashed var(--faq-dash);
  }

  .page-faq .faq-step:last-child {
    border-left-color: transparent;
    border-top-color: var(--faq-dash);
  }

  .page-faq .faq-step__dot {
    left: 0;
    top: -6px;
  }

  .page-faq .faq-step__desc {
    max-width: none;
  }

  .page-faq .faq-item {
    padding-left: 22px;
  }

  .page-faq .faq-item__a {
    padding-left: 40px;
    padding-right: 8%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__q,
  .page-faq .faq-kind,
  .page-faq .faq-step__dot {
    transition: none;
  }

  .page-faq .faq-kind:hover,
  .page-faq .faq-step:hover .faq-step__dot {
    transform: none;
  }
}