.page-faq {
  --faq-line: rgba(130, 152, 173, .28);
  --faq-line-strong: rgba(130, 152, 173, .46);
  --faq-card-radius: 26px;
  --faq-gap: clamp(16px, 2.4vw, 30px);
  background-color: var(--space);
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(44px, 7vw, 92px);
  background:
    radial-gradient(120% 80% at 88% -10%, rgba(36, 224, 207, .18), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(123, 97, 255, .14), transparent 60%),
    var(--space);
  border-bottom: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-hero .breadcrumb {
  font-size: 13px;
  color: var(--slate);
  letter-spacing: .02em;
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--cyan-soft);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-hero__layout {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(22px, 4vw, 44px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7.4vw, 84px);
  line-height: 1.02;
  letter-spacing: -.035em;
  color: #FFFFFF;
  max-width: 14em;
}

.page-faq .faq-hero__lede {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.9;
  color: rgba(184, 255, 247, .84);
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 状态看板 */

.page-faq .faq-board {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line-cyan);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(16, 43, 78, .92), rgba(4, 11, 22, .82));
  box-shadow: 0 30px 60px -46px rgba(0, 0, 0, .95);
}

.page-faq .faq-board__title {
  margin: 0;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--cyan);
}

.page-faq .faq-wave {
  display: block;
  width: 100%;
  height: 34px;
  color: rgba(36, 224, 207, .55);
}

.page-faq .faq-board__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-board__row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(130, 152, 173, .22);
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-board__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-board__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(36, 224, 207, .16);
}

.page-faq .faq-board__state {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-soft);
}

.page-faq .faq-board__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid rgba(130, 152, 173, .22);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 定位条 ---------- */

.page-faq .faq-locator {
  padding: clamp(38px, 5.6vw, 72px) 0;
  background: var(--midnight);
  color: var(--mist);
}

.page-faq .faq-locator__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: #FFFFFF;
}

.page-faq .faq-locator__intro {
  margin: 14px 0 0;
  max-width: 52em;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(242, 246, 250, .78);
}

.page-faq .faq-pills {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--faq-line);
  background: rgba(184, 255, 247, .05);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-pill__no {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-faq .faq-pill:hover,
.page-faq .faq-pill:focus-visible {
  border-color: var(--cyan);
  background: rgba(36, 224, 207, .14);
}

.page-faq .faq-pill[aria-current="true"] {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--space);
}

.page-faq .faq-pill[aria-current="true"] .faq-pill__no {
  color: var(--space);
}

/* ---------- 排查卡 ---------- */

.page-faq .faq-cards {
  padding: clamp(44px, 6.4vw, 92px) 0 clamp(52px, 7vw, 104px);
  background: var(--mist);
  color: var(--space);
}

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

.page-faq .faq-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-card-radius);
  background: #FFFFFF;
  box-shadow: 0 26px 54px -48px rgba(4, 11, 22, .95);
  scroll-margin-top: 120px;
}

.page-faq .faq-card--screen { box-shadow: inset 0 3px 0 0 var(--cyan), 0 26px 54px -48px rgba(4, 11, 22, .95); }
.page-faq .faq-card--login { box-shadow: inset 0 3px 0 0 var(--violet), 0 26px 54px -48px rgba(4, 11, 22, .95); }
.page-faq .faq-card--collect { box-shadow: inset 0 3px 0 0 var(--orange), 0 26px 54px -48px rgba(4, 11, 22, .95); }
.page-faq .faq-card--install { box-shadow: inset 0 3px 0 0 var(--slate), 0 26px 54px -48px rgba(4, 11, 22, .95); }

.page-faq .faq-card__media {
  overflow: hidden;
  border-radius: var(--r-md);
  background: var(--space);
}

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

.page-faq .faq-card__no {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-faq .faq-card__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.36;
  letter-spacing: -.015em;
  color: var(--space);
}

.page-faq .faq-card__desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3A5876;
}

/* 步骤 */

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid rgba(130, 152, 173, .2);
}

.page-faq .faq-step:first-child {
  border-top: 0;
}

.page-faq .faq-step__check {
  flex: none;
  width: 24px;
  height: 24px;
  margin: 2px 0 0;
  border-radius: 50%;
  border: 1px solid var(--faq-line-strong);
  background: #FFFFFF;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  position: relative;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-step__check::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  transform: scale(0);
  transition: transform .2s var(--ease);
}

.page-faq .faq-step__check:checked {
  border-color: var(--cyan);
  background: rgba(36, 224, 207, .14);
}

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

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

.page-faq .faq-step__label {
  display: block;
  font-size: 14px;
  line-height: 1.85;
  color: #3A5876;
  cursor: pointer;
}

.page-faq .faq-step__label strong {
  display: block;
  margin-bottom: 2px;
  font-weight: 700;
  font-size: 14.5px;
  color: var(--space);
}

.page-faq .faq-step__check:checked + .faq-step__label strong {
  color: var(--slate);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

/* 折叠 */

.page-faq .faq-fold {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(242, 246, 250, .85);
  padding: 0 16px;
}

.page-faq .faq-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 0;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--midnight);
  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: 16px;
  line-height: 1;
  color: var(--slate);
}

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

.page-faq .faq-fold__body {
  padding: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.85;
  color: #3A5876;
}

.page-faq .faq-fold__body p {
  margin: 0;
}

.page-faq .faq-fold__body a {
  color: var(--midnight);
  text-decoration: underline;
  text-decoration-color: rgba(36, 224, 207, .7);
  text-underline-offset: 3px;
}

/* 复制按钮 */

.page-faq .faq-card__foot {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed rgba(130, 152, 173, .32);
}

.page-faq .faq-card__foot .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--faq-line-strong);
  background: transparent;
  color: var(--midnight);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-card__foot .copy-btn:hover,
.page-faq .faq-card__foot .copy-btn:focus-visible {
  border-color: var(--cyan);
  background: rgba(36, 224, 207, .12);
}

/* ---------- 求助路径 ---------- */

.page-faq .faq-escalate {
  padding: clamp(44px, 6.4vw, 96px) 0;
  background:
    radial-gradient(100% 80% at 100% 0%, rgba(255, 138, 61, .14), transparent 58%),
    var(--ink);
  color: var(--mist);
}

.page-faq .faq-escalate__layout {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-escalate__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: #FFFFFF;
}

.page-faq .faq-escalate__text {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(242, 246, 250, .76);
}

.page-faq .faq-prepare {
  counter-reset: prep;
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-prepare > li {
  position: relative;
  padding-left: 42px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(242, 246, 250, .82);
}

.page-faq .faq-prepare > li::before {
  counter-increment: prep;
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-cyan);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-escalate__call {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--slate);
}

.page-faq .faq-escalate__call a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 224, 207, .5);
}

.page-faq .faq-escalate__call a:hover,
.page-faq .faq-escalate__call a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-escalate__routes {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-route {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(16, 43, 78, .62);
  color: var(--mist);
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), transform .22s var(--ease);
}

.page-faq .faq-route:hover,
.page-faq .faq-route:focus-visible {
  border-color: var(--cyan);
  background: rgba(36, 224, 207, .1);
  transform: translateY(-2px);
}

.page-faq .faq-route__tag {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-faq .faq-route__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: #FFFFFF;
}

.page-faq .faq-route__desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */

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

  .page-faq .faq-escalate__routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, .82fr);
    align-items: end;
  }

  .page-faq .faq-card--offset {
    margin-top: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-escalate__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-faq .faq-escalate__routes {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-escalate__routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }

  .page-faq .faq-route:hover,
  .page-faq .faq-route:focus-visible {
    transform: none;
  }
}