.page-faq {
  --faq-rule: rgba(185, 192, 180, .55);
  --faq-node: var(--grass-deep);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(104px, 15vw, 168px) 0 0;
  background:
    repeating-linear-gradient(90deg, rgba(76, 224, 160, .055) 0 2px, transparent 2px 104px),
    linear-gradient(163deg, var(--grass-deep) 0%, #092c21 46%, var(--night) 100%);
  color: var(--paper);
  border-bottom: var(--bd) solid var(--ink);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-bottom: clamp(32px, 5vw, 56px);
}

.page-faq .faq-hero .crumbs {
  margin-bottom: clamp(28px, 5vw, 48px);
  color: var(--index);
}

.page-faq .faq-hero .crumbs a {
  color: var(--index);
  text-decoration: none;
  transition: color .16s var(--ease);
}

.page-faq .faq-hero .crumbs a:hover {
  color: var(--whistle);
}

.page-faq .faq-hero .crumbs__sep {
  opacity: .55;
  margin: 0 .5em;
}

.page-faq .faq-hero .eyebrow {
  color: var(--whistle);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-hero h1 {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 17ch;
  font-size: clamp(31px, 6.6vw, 64px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.82;
  color: rgba(246, 244, 238, .82);
}

.page-faq .faq-hero__fig {
  --figure-ratio: 2 / 1;
  margin: 0;
  border-top: var(--bd) solid var(--whistle);
}

.page-faq .figure__frame {
  overflow: hidden;
  background: var(--night);
}

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

.page-faq .figure__cap {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  line-height: 1.7;
  color: var(--index);
  padding: 12px 0 0;
}

/* ---------- 主题索引 ---------- */

.page-faq .faq-index {
  background: var(--paper);
  border-bottom: var(--bd) solid var(--ink);
}

.page-faq .faq-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: clamp(22px, 3.2vw, 34px) 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 12px;
  border: var(--bd) solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: background .16s var(--ease), box-shadow .16s var(--ease), transform .16s var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: var(--card);
  box-shadow: var(--shadow-mid);
  transform: translate(-2px, -2px);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--whistle);
}

/* ---------- 展区骨架 ---------- */

.page-faq .faq-block {
  border-bottom: var(--bd) solid var(--ink);
  padding: clamp(48px, 8vw, 100px) 0;
}

.page-faq .faq-block--tint {
  background:
    repeating-linear-gradient(135deg, rgba(21, 96, 74, .055) 0 12px, transparent 12px 30px),
    var(--paper);
}

.page-faq .faq-block--grass {
  background: var(--grass-deep);
  color: var(--paper);
}

.page-faq .faq-block--night {
  background: var(--night);
  color: var(--paper);
}

.page-faq .faq-block--card {
  background: var(--card);
  color: var(--ink);
  border-bottom: 0;
}

.page-faq .faq-block__inner {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq-block__no {
  display: block;
  font-size: clamp(52px, 11vw, 100px);
  line-height: .88;
  letter-spacing: -0.04em;
  color: var(--grass-deep);
}

.page-faq .faq-block--grass .faq-block__no {
  color: var(--mint);
}

.page-faq .faq-block--night .faq-block__no {
  color: var(--whistle);
}

.page-faq .faq-block--card .faq-block__no {
  color: var(--grass-deep);
}

.page-faq .faq-block__head h2 {
  margin: 12px 0 12px;
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-block__note {
  margin: 0;
  max-width: 32ch;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(10, 12, 10, .6);
}

.page-faq .faq-block--grass .faq-block__note,
.page-faq .faq-block--night .faq-block__note {
  color: rgba(246, 244, 238, .68);
}

/* ---------- 问答展签 ---------- */

.page-faq .faq-q {
  border: var(--bd) solid var(--ink);
  border-left-width: 10px;
  border-left-color: var(--index);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
  transition: border-left-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .faq-q + .faq-q {
  margin-top: 14px;
}

.page-faq .faq-q[open] {
  border-left-color: var(--whistle);
  box-shadow: var(--shadow-mid);
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 20px 18px 16px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.1vw, 17px);
  font-weight: 700;
  line-height: 1.6;
}

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

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

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

.page-faq .faq-q__q {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--whistle);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__sign {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--grass-deep);
  transition: transform .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-q[open] .faq-q__sign {
  transform: rotate(45deg);
  color: var(--whistle);
}

.page-faq .faq-q__body {
  padding: 0 22px 20px 46px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(10, 12, 10, .78);
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

.page-faq .faq-q__body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-q__body a {
  color: var(--grass-mid);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  font-weight: 600;
}

.page-faq .faq-q__body a:hover {
  color: var(--whistle);
}

/* ---------- 统计配图 ---------- */

.page-faq .faq-stat__fig {
  --figure-ratio: 3 / 2;
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: var(--bd) solid var(--ink);
  box-shadow: var(--shadow-mid);
  background: var(--night);
}

.page-faq .faq-stat__fig .figure__cap {
  padding: 12px 14px;
  background: var(--paper);
  color: rgba(10, 12, 10, .6);
}

/* ---------- 三分钟自查 ---------- */

.page-faq .selfcheck {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
  margin: 0 auto;
}

.page-faq .selfcheck text {
  font-family: var(--font-sans);
}

.page-faq .selfcheck__rail {
  stroke: rgba(185, 192, 180, .5);
  stroke-width: 3;
  stroke-dasharray: 10 10;
}

.page-faq .selfcheck__node {
  fill: var(--faq-node);
  stroke: var(--whistle);
  stroke-width: 3;
}

.page-faq .selfcheck__no {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-faq .selfcheck__t {
  fill: var(--paper);
  font-size: 22px;
  font-weight: 700;
}

.page-faq .selfcheck__d {
  fill: rgba(246, 244, 238, .68);
  font-size: 15px;
}

/* ---------- 反馈 ---------- */

.page-faq .faq-contact {
  border: var(--bd) solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-mid);
  padding: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-contact p {
  margin: 0 0 16px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(10, 12, 10, .8);
}

.page-faq .faq-contact a:not(.btn) {
  color: var(--grass-mid);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .faq-contact a:not(.btn):hover {
  color: var(--whistle);
}

.page-faq .faq-contact .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--grass-deep);
  word-break: break-all;
}

.page-faq .faq-contact .btn {
  margin-top: 4px;
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-block__inner {
    grid-template-columns: minmax(180px, 300px) minmax(0, 1fr);
    column-gap: clamp(40px, 6vw, 96px);
    row-gap: clamp(28px, 4vw, 46px);
    align-items: start;
  }

  .page-faq .faq-block__aside {
    grid-column: 1 / -1;
  }

  .page-faq .faq-block__head {
    position: sticky;
    top: clamp(96px, 12vw, 132px);
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-faq .faq-hero .lede {
    font-size: 19px;
  }
}

@media (max-width: 719px) {
  .page-faq .faq-q__body {
    padding: 0 18px 18px 18px;
  }

  .page-faq .faq-q__sign {
    font-size: 18px;
  }

  .page-faq .selfcheck {
    max-width: 360px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-q,
  .page-faq .faq-q__sign {
    transition: none;
  }

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