/* ===== 问题排查页面 专属样式 ===== */
.page-faq {
  --faq-pad: clamp(16px, 2.4vw, 24px);
  --faq-hair: rgba(31, 107, 81, 0.5);
  --faq-body: rgba(244, 248, 245, 0.8);
  background:
    radial-gradient(1100px 520px at 84% -8%, rgba(25, 240, 200, 0.10), transparent 62%),
    radial-gradient(760px 420px at 4% 30%, rgba(255, 138, 31, 0.07), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--field) 34%, var(--ink) 100%);
  color: var(--paper);
  padding-bottom: clamp(48px, 7vw, 88px);
  overflow-x: hidden;
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  padding: clamp(26px, 4.6vw, 58px) 0 clamp(22px, 3.2vw, 38px);
}

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 clamp(18px, 2.8vw, 32px);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.68fr) minmax(220px, 0.72fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-faq .faq-title {
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(31px, 6.2vw, 64px);
  line-height: 1.07;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  max-width: 16ch;
  color: var(--paper);
}

.page-faq .faq-lede {
  font-size: clamp(15.5px, 1.15vw, 17px);
  line-height: 1.82;
  color: var(--faq-body);
  max-width: 58ch;
  margin: 0 0 clamp(20px, 2.8vw, 30px);
}

.page-faq .faq-lede em {
  font-style: normal;
  color: var(--cyan-soft);
  border-bottom: 1px dashed rgba(124, 255, 228, 0.55);
  padding-bottom: 1px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

/* 首屏右侧版本卡 */
.page-faq .faq-hero-side {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  background: rgba(11, 36, 29, 0.62);
  backdrop-filter: blur(12px);
  padding: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-hero-side::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--orange));
}

.page-faq .faq-side-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.page-faq .faq-side-code {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
  margin: 0 0 10px;
}

.page-faq .faq-side-note {
  font-size: 13px;
  line-height: 1.68;
  color: var(--muted);
  margin: 0;
}

.page-faq .faq-band {
  margin-top: clamp(20px, 3vw, 34px);
}

/* ---- 吸顶筛选栏 ---- */
.page-faq .faq-filter-wrap {
  position: sticky;
  top: 58px;
  z-index: 30;
  padding: 10px 0;
  background: rgba(5, 13, 11, 0.8);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(31, 107, 81, 0.42);
  border-bottom: 1px solid rgba(31, 107, 81, 0.42);
  margin-bottom: clamp(10px, 1.6vw, 18px);
}

.page-faq .faq-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-filter::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-filter .filter-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

/* ---- 问答流 ---- */
.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(30px, 4.4vw, 52px);
  padding-top: clamp(16px, 2.4vw, 28px);
}

.page-faq .faq-chapter {
  scroll-margin-top: 150px;
}

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

.page-faq .faq-chapter .section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-chapter .num-block {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  background: var(--cyan);
  border-radius: var(--radius);
  padding: 4px 8px;
}

.page-faq .faq-chapter .section-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(20px, 2.5vw, 30px);
  line-height: 1.32;
  letter-spacing: 0;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-faq .faq-chapter-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
}

/* ---- 配图 ---- */
.page-faq .faq-figure {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(31, 107, 81, 0.42);
}

.page-faq .faq-figure .image-frame {
  border: 0;
}

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

.page-faq .faq-figcaption {
  padding: 10px 16px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  background: rgba(11, 36, 29, 0.6);
}

/* ---- 问答条目 ---- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  background: rgba(11, 36, 29, 0.5);
  overflow: hidden;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease), transform 0.16s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(25, 240, 200, 0.6);
  transform: translateY(-2px);
}

.page-faq .faq-item[open] {
  border-color: rgba(25, 240, 200, 0.55);
  background: rgba(18, 64, 47, 0.58);
  transform: none;
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: start;
  padding: var(--faq-pad);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-faq .faq-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--cyan);
  padding-top: 2px;
}

.page-faq .faq-q-text {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(16px, 1.5vw, 18.5px);
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.16s var(--ease);
}

.page-faq .faq-item[open] .faq-q-text {
  color: var(--cyan-soft);
}

.page-faq .faq-caret {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  justify-self: end;
}

.page-faq .faq-caret::before,
.page-faq .faq-caret::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  border-radius: 2px;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.page-faq .faq-caret::before {
  top: 8px;
  right: 0;
  left: 0;
  height: 2px;
}

.page-faq .faq-caret::after {
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-caret::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 var(--faq-pad) calc(var(--faq-pad) + 2px);
  animation: faq-drop 0.28s var(--ease);
}

@media (min-width: 720px) {
  .page-faq .faq-a {
    padding-left: calc(var(--faq-pad) + 46px);
  }
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-body);
  max-width: 62ch;
}

.page-faq .faq-a .btn {
  margin-top: 14px;
}

@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- 版本号核对条 ---- */
.page-faq .faq-version-block {
  padding: clamp(34px, 5vw, 58px) 0 clamp(6px, 1.2vw, 14px);
}

.page-faq .version-check {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 28px);
  align-items: center;
  background: var(--paper);
  color: var(--char);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3.4vw, 40px);
  box-shadow: var(--shadow);
}

.page-faq .version-check::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--orange), var(--cyan));
}

@media (min-width: 860px) {
  .page-faq .version-check {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: clamp(24px, 4vw, 52px);
  }
}

.page-faq .version-check-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted-ink);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.page-faq .version-check-code {
  font-size: clamp(42px, 7vw, 78px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--char);
  margin: 0 0 14px;
}

.page-faq .version-check-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted-ink);
  max-width: 58ch;
}

/* ---- 联系区 ---- */
.page-faq .faq-contact {
  padding: clamp(34px, 5vw, 62px) 0 0;
}

.page-faq .faq-contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(24px, 3.6vw, 42px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(18, 64, 47, 0.72), rgba(11, 36, 29, 0.86));
  backdrop-filter: blur(10px);
}

@media (min-width: 840px) {
  .page-faq .faq-contact-panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

.page-faq .faq-contact-copy .eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-faq .faq-contact-copy .section-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 32px);
  line-height: 1.32;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-faq .faq-contact-lede {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--faq-body);
  max-width: 50ch;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-list li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(31, 107, 81, 0.4);
}

.page-faq .faq-contact-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact-key {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-contact-value {
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(244, 248, 245, 0.88);
  word-break: break-word;
}

/* ---- 动效收敛 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-q-text,
  .page-faq .faq-caret::before,
  .page-faq .faq-caret::after {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }

  .page-faq .faq-a {
    animation: none;
  }
}