.page-faq {
  --faq-rule: rgba(143, 163, 184, .26);
  --faq-glow: rgba(35, 224, 208, .42);
  --faq-panel: rgba(15, 36, 64, .66);
  position: relative;
  padding-top: 104px;
  padding-bottom: clamp(64px, 8vw, 104px);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
  background-image:
    radial-gradient(1100px 480px at 10% -10%, rgba(35, 224, 208, .10), transparent 62%),
    radial-gradient(820px 420px at 98% 8%, rgba(255, 154, 46, .07), transparent 66%);
  background-repeat: no-repeat;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  margin-bottom: clamp(28px, 4vw, 44px);
}

/* ---------- 分带 ---------- */
.page-faq .faq-band {
  position: relative;
  padding: clamp(44px, 6vw, 76px) 0;
}

.page-faq .faq-band + .faq-band {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-band--last {
  padding-bottom: clamp(24px, 4vw, 48px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  display: grid;
  gap: 36px;
}

.page-faq .faq-h1 {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 700;
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 16ch;
}

.page-faq .faq-intro-main .lede {
  margin-top: 20px;
  max-width: 46ch;
}

.page-faq .faq-facts {
  display: grid;
  gap: 16px;
  padding-left: 20px;
  border-left: 2px solid var(--faq-glow);
}

.page-faq .faq-facts .stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-facts .stat-num {
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-variant-numeric: tabular-nums;
  color: var(--electric);
  line-height: 1;
}

.page-faq .faq-facts .stat-label {
  font-size: .82rem;
  color: var(--ink);
  letter-spacing: .04em;
}

/* ---------- 三步时间轴 ---------- */
.page-faq .faq-steps-wrap {
  margin-top: clamp(52px, 7vw, 84px);
}

.page-faq .faq-minihead {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 0 30px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-minihead::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--faq-rule);
}

.page-faq .faq-steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 32px;
}

.page-faq .faq-step {
  position: relative;
  padding-top: 36px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 14px;
  height: 14px;
  background: var(--amber);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-step:hover::before {
  background: var(--electric);
  transform: rotate(45deg) scale(1.15);
}

.page-faq .faq-step-num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--ink);
  margin-bottom: 8px;
}

.page-faq .faq-step-title {
  margin: 0 0 10px;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.005em;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 顶部图 ---------- */
.page-faq .faq-banner {
  margin-top: clamp(44px, 6vw, 70px);
}

.page-faq .faq-banner img {
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  display: block;
}

/* ---------- 章头 + 手风琴 错位分栏 ---------- */
.page-faq .faq-block {
  display: grid;
  gap: 30px;
}

.page-faq .faq-sechead {
  border-top: 1px solid var(--faq-rule);
  padding-top: 22px;
}

.page-faq .faq-secnum {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(35, 224, 208, .26);
  margin-bottom: 12px;
}

.page-faq .faq-sechead .section-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: var(--size-lg);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-sechead .lede {
  margin-top: 14px;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--soft);
  max-width: 40ch;
}

.page-faq .faq-sechead .lede a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-glow);
}

.page-faq .faq-sechead .btn {
  margin-top: 22px;
}

/* ---------- 手风琴 ---------- */
.page-faq .faq {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item {
  border-top: 1px solid var(--faq-rule);
  background: linear-gradient(180deg, var(--faq-panel), rgba(15, 36, 64, .22));
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-top-color: var(--faq-glow);
}

.page-faq .faq-item > summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 20px 46px 20px 20px;
  font-size: 1rem;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--electric);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--amber);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q {
  margin: 0;
  display: inline;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: -.005em;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-q::before,
.page-faq .faq-q::after {
  font-family: var(--font-num);
  color: var(--electric);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .faq-q::before {
  content: "[ ";
  margin-left: -2px;
}

.page-faq .faq-q::after {
  content: " ]";
}

.page-faq .faq-item > summary:hover .faq-q::before,
.page-faq .faq-item > summary:hover .faq-q::after,
.page-faq .faq-item[open] .faq-q::before,
.page-faq .faq-item[open] .faq-q::after {
  opacity: 1;
}

.page-faq .faq-item > summary:hover .faq-q {
  color: var(--electric);
}

.page-faq .faq-body {
  padding: 0 46px 22px 20px;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--soft);
}

.page-faq .faq-body p {
  margin: 0;
  max-width: 60ch;
}

.page-faq .faq-body a {
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-glow);
}

/* ---------- 资料库图 ---------- */
.page-faq .faq-figure {
  margin-top: 32px;
  transform: rotate(-1.1deg);
}

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

/* ---------- 排查清单 ---------- */
.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--faq-rule);
  background-color: rgba(10, 26, 47, .5);
  background-image: repeating-linear-gradient(
    180deg,
    rgba(143, 163, 184, .05) 0 1px,
    transparent 1px 44px
  );
}

.page-faq .faq-check-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: start;
  padding: 20px 18px;
  border-bottom: 1px dashed var(--faq-rule);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-check-row:last-child {
  border-bottom: 0;
}

.page-faq .faq-check-row:hover {
  background: rgba(35, 224, 208, .07);
}

.page-faq .faq-check-num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: .86rem;
  letter-spacing: .08em;
  color: var(--amber);
  line-height: 1.7;
}

.page-faq .faq-check-body h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-check-body p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--ink);
  max-width: 56ch;
}

.page-faq .faq-check-row .tag {
  grid-column: 2;
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-main--contact {
  display: grid;
  gap: 28px;
}

.page-faq .faq-contacts {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contacts .copy-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--faq-rule);
  background: linear-gradient(120deg, rgba(22, 50, 79, .62), rgba(15, 36, 64, .3));
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-contacts .copy-field:hover {
  border-color: var(--faq-glow);
}

.page-faq .faq-contacts .copy-key {
  grid-column: 1;
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink);
}

.page-faq .faq-contacts .copy-value {
  grid-column: 1;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: .95rem;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contacts .copy-btn {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  padding: 8px 16px;
  border: 1px solid var(--faq-glow);
  background: transparent;
  color: var(--electric);
  font-size: .78rem;
  letter-spacing: .12em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-contacts .copy-btn:hover {
  background: rgba(35, 224, 208, .12);
}

.page-faq .faq-contacts .copy-btn[data-copied] {
  border-color: var(--neon);
  color: var(--neon);
  background: rgba(124, 247, 122, .1);
}

.page-faq .faq-hours {
  margin: 0 0 20px;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--soft);
  max-width: 52ch;
}

/* ---------- 桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 36px;
  }

  .page-faq .faq-steps::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 6px;
    height: 1px;
    background: linear-gradient(90deg, var(--amber), var(--electric) 55%, rgba(35, 224, 208, .08));
    opacity: .55;
  }

  .page-faq .faq-step:nth-child(2) {
    transform: translateY(14px);
  }

  .page-faq .faq-step:nth-child(3) {
    transform: translateY(28px);
  }

  .page-faq .faq-check-row {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px 22px;
    padding: 22px 24px;
  }

  .page-faq .faq-check-row .tag {
    grid-column: 3;
    grid-row: 1;
    align-self: center;
    margin-top: 0;
  }

  .page-faq .faq-check-num {
    line-height: 1;
    align-self: center;
  }

  .page-faq .faq-main--contact {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq {
    padding-top: 128px;
  }

  .page-faq .faq-intro {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
    gap: 64px;
  }

  .page-faq .faq-block {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.5fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-sechead {
    position: sticky;
    top: 112px;
  }

  .page-faq .faq-figure {
    width: 66%;
    margin-left: auto;
    margin-top: 42px;
  }
}

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

  .page-faq .faq-step:nth-child(2),
  .page-faq .faq-step:nth-child(3),
  .page-faq .faq-figure {
    transform: none;
  }
}