.page-faq {
  --faq-card-bg: rgba(13, 24, 48, 0.5);
  --faq-card-bg-open: rgba(13, 24, 48, 0.92);
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5vw, 72px) 0 clamp(26px, 4vw, 50px);
  background:
    radial-gradient(72% 100% at 92% 0%, rgba(53, 242, 206, 0.14), transparent 62%),
    radial-gradient(58% 88% at 2% 100%, rgba(255, 61, 139, 0.1), transparent 66%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(28, 51, 88, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(28, 51, 88, 0.32) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 76%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 76%);
  pointer-events: none;
}

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

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 52px);
  margin-top: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 19ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero .lead {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-hero-status {
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(165deg, rgba(13, 24, 48, 0.96), rgba(6, 12, 28, 0.9));
  padding: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-status-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-faq .faq-status-value {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-status-dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  animation: faq-pulse 2.6s ease-in-out infinite;
}

.page-faq .faq-status-meta {
  margin: 10px 0 0;
  font-size: var(--fs-index);
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: var(--fs-index);
  color: var(--mist);
  text-decoration: none;
  transition: color 200ms ease, background-color 200ms ease, border-color 200ms ease;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  outline: none;
}

@keyframes faq-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(53, 242, 206, 0.18); }
  50% { box-shadow: 0 0 0 9px rgba(53, 242, 206, 0.04); }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  padding: clamp(30px, 4vw, 56px) 0 clamp(60px, 8vw, 110px);
}

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

.page-faq .faq-block {
  padding-top: clamp(28px, 4vw, 52px);
  scroll-margin-top: calc(var(--header-bar) + 34px);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
}

.page-faq .faq-block-head {
  max-width: 60ch;
}

.page-faq .faq-block-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-faq .faq-block-lead {
  margin: 14px 0 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 配图 ---------- */
.page-faq .faq-media {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 100%;
}

.page-faq .faq-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--panel-deep);
}

.page-faq .faq-media .media-caption {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-index);
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-media--square {
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
}

.page-faq .faq-media--square img {
  aspect-ratio: 1 / 1;
  max-height: 460px;
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: var(--r-m);
  background: var(--faq-card-bg);
  transition: border-color 240ms ease, background-color 240ms ease;
}

.page-faq .faq-card:hover {
  border-color: rgba(53, 242, 206, 0.32);
  border-left-color: rgba(53, 242, 206, 0.6);
}

.page-faq .faq-card[open] {
  border-color: rgba(53, 242, 206, 0.36);
  border-left-color: var(--cyan);
  background: var(--faq-card-bg-open);
}

.page-faq .faq-card > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  border-radius: var(--r-m);
  cursor: pointer;
  list-style: none;
  transition: background-color 200ms ease;
}

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

.page-faq .faq-card > summary:hover {
  background: rgba(53, 242, 206, 0.05);
}

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

.page-faq .faq-idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-q {
  min-width: 0;
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1.45;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-chev {
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--mist);
  border-bottom: 1.5px solid var(--mist);
  transform: rotate(45deg);
  transition: transform 240ms ease, border-color 240ms ease;
}

.page-faq .faq-card[open] .faq-chev {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-faq .faq-body {
  padding: 2px 16px 18px;
}

.page-faq .faq-card[open] .faq-body {
  animation: faq-open 300ms ease both;
}

.page-faq .faq-do {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--paper);
}

.page-faq .faq-expect {
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-expect b {
  color: var(--cyan);
  font-weight: 600;
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 右侧状态列 ---------- */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-aside-inner {
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, rgba(13, 24, 48, 0.9), rgba(6, 12, 28, 0.72));
  padding: clamp(18px, 2.2vw, 24px);
}

.page-faq .faq-status-list {
  display: grid;
  gap: 12px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-status-item {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(28, 51, 88, 0.9);
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--mist);
}

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

.page-faq .faq-status-item b {
  display: block;
  margin-bottom: 2px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-dot {
  width: 7px;
  height: 7px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .faq-dot--magenta {
  background: var(--magenta);
}

.page-faq .faq-dot--yellow {
  background: var(--yellow);
}

.page-faq .faq-aside-stats {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: 21px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--yellow);
}

.page-faq .faq-stat-label {
  font-size: var(--fs-index);
  line-height: 1.4;
  color: var(--mist);
}

/* ---------- 联系与反馈 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 24px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: clamp(18px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(150deg, rgba(13, 24, 48, 0.95), rgba(3, 18, 27, 0.9));
}

.page-faq .faq-contact-block {
  min-width: 0;
}

.page-faq .faq-checklist {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border: 1px solid var(--cyan);
  border-radius: 2px;
}

.page-faq .faq-readon {
  margin: 18px 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-readon a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 206, 0.4);
}

.page-faq .faq-readon a:hover,
.page-faq .faq-readon a:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 14px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-label {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .faq-contact-value {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0;
}

.page-faq .faq-contact-note {
  margin: 18px 0 0;
  font-size: var(--fs-index);
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 206, 0.4);
}

.page-faq .faq-contact-note a:hover,
.page-faq .faq-contact-note a:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
  }

  .page-faq .faq-media--square {
    max-width: 420px;
    margin-left: auto;
    margin-right: 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-body {
    padding: 2px 20px 20px;
  }

  .page-faq .faq-card > summary {
    padding: 16px 20px;
    gap: 16px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) minmax(268px, 320px);
    align-items: start;
  }

  .page-faq .faq-aside-inner {
    position: sticky;
    top: calc(var(--header-bar) + 26px);
  }
}

@media (max-width: 420px) {
  .page-faq .faq-card > summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    padding: 14px 13px;
  }

  .page-faq .faq-body {
    padding: 2px 13px 16px;
  }

  .page-faq .faq-q {
    font-size: var(--fs-small);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-status-dot {
    animation: none;
    box-shadow: 0 0 0 4px rgba(53, 242, 206, 0.16);
  }

  .page-faq .faq-card[open] .faq-body {
    animation: none;
  }

  .page-faq .faq-chev,
  .page-faq .faq-card,
  .page-faq .faq-jump a,
  .page-faq .faq-card > summary {
    transition: none;
  }
}