.page-faq {
  --faq-idx-w: 248px;
  --faq-shot: clamp(220px, 62vw, 320px);
  color: var(--ink);
}

/* ── 面包屑留白 ── */
.page-faq .crumbs {
  padding-top: 20px;
  padding-bottom: 8px;
}

/* ── 首屏 ── */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(138, 92, 255, .16), transparent 62%),
    radial-gradient(90% 80% at 4% 8%, rgba(34, 224, 255, .1), transparent 60%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(30, 44, 79, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 44, 79, .5) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: 46%;
  height: 148%;
  transform: rotate(12deg);
  background: linear-gradient(140deg, rgba(34, 224, 255, .18), rgba(138, 92, 255, .14) 46%, transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  padding: 40px 0 36px;
}

.page-faq .faq-hero-copy {
  max-width: 40ch;
}

.page-faq .faq-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 48px);
  line-height: 1.12;
  letter-spacing: -1%;
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 38ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(34, 224, 255, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 224, 255, .07) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

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

.page-faq .faq-hero-figure .media-cap {
  position: relative;
  z-index: 1;
}

/* ── 数据条 ── */
.page-faq .faq-statstrip {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  margin-top: 8px;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 16px 20px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.page-faq .faq-stat:nth-child(2n) {
  border-right: 0;
}

.page-faq .faq-stat .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5.5vw, 30px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-faq .faq-stat .stat-num.is-orange {
  color: var(--orange);
}

.page-faq .faq-stat .stat-label {
  font-size: 14px;
  color: var(--ink);
}

.page-faq .faq-stat .stat-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ── 主体两栏 ── */
.page-faq .faq-body {
  display: grid;
  gap: 32px;
  padding: 36px 0 76px;
}

/* ── 问题索引 ── */
.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-index ul {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index li {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-faq .faq-index-link .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--ink);
  border-color: var(--cyan);
}

.page-faq .faq-index-link.is-active,
.page-faq .faq-index-link[aria-current="true"] {
  color: var(--ink);
  border-color: var(--orange);
  background: rgba(255, 107, 33, .12);
}

.page-faq .faq-index-link.is-active .mono,
.page-faq .faq-index-link[aria-current="true"] .mono {
  color: var(--orange);
}

/* ── 答案区 ── */
.page-faq .faq-block {
  scroll-margin-top: 104px;
}

.page-faq .faq-block + .faq-block {
  margin-top: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-block .section-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.2;
  letter-spacing: -1%;
}

.page-faq .section-note {
  margin: 8px 0 20px;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item:hover {
  border-color: rgba(34, 224, 255, .4);
}

.page-faq .faq-item[open] {
  border-color: rgba(34, 224, 255, .6);
  background: var(--deep);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-q {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-arrow {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(-45deg);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(45deg);
  border-color: var(--orange);
}

.page-faq .faq-a {
  padding: 12px 16px 18px 56px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-a .mono,
.page-faq .faq-contact-note .mono {
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-faq .faq-jump {
  margin: 18px 0 0;
}

/* ── 联系区块 ── */
.page-faq .faq-contact-grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-contact-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  align-self: start;
}

.page-faq .faq-contact-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-contact-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 255, .4);
}

.page-faq .faq-contact-note a:hover,
.page-faq .faq-contact-note a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ── 平板 ── */
@media (min-width: 700px) {
  .page-faq .faq-statstrip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-stat {
    border-bottom: 0;
  }

  .page-faq .faq-stat:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-stat:last-child {
    border-right: 0;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 28px;
    align-items: start;
  }
}

/* ── 桌面 ── */
@media (min-width: 960px) {
  .page-faq .crumbs {
    padding-top: 28px;
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    gap: 48px;
    padding: 68px 0 56px;
  }

  .page-faq .faq-hero-figure {
    margin-inline-end: -8px;
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-idx-w) minmax(0, 1fr);
    gap: 56px;
    padding: 56px 0 104px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-faq .faq-index ul {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index li + li {
    margin-top: 6px;
  }

  .page-faq .faq-index-link {
    display: flex;
    width: 100%;
    border-radius: var(--radius);
    border-color: transparent;
    border-left: 2px solid var(--line);
    background: transparent;
    padding: 10px 12px;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-faq .faq-index-link.is-active,
  .page-faq .faq-index-link[aria-current="true"] {
    background: rgba(255, 107, 33, .08);
    border-color: transparent;
    border-left-color: var(--orange);
  }

  .page-faq .faq-block + .faq-block {
    margin-top: 40px;
    padding-top: 48px;
  }
}