/* ============================================================
   使用指南 / 页面专属样式 · 作用域 .page-faq
   ============================================================ */

.page-faq {
  --faq-item-bg: var(--white);
  --faq-item-line: var(--line-light);
  --faq-q-color: var(--ink);
  --faq-a-color: var(--ink);
  --faq-sign-bg: rgba(255, 74, 28, .1);
  --faq-sign-line: var(--fox-deep);
  background-color: var(--fog);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .faq-block {
  padding-top: clamp(2.6rem, 6vw, 4.6rem);
  padding-bottom: clamp(2.6rem, 6vw, 4.6rem);
}

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

.page-faq .faq-block--dark {
  background-color: var(--ink);
  color: var(--fog);
}

.page-faq .faq-block--grass {
  background-image: linear-gradient(155deg, var(--grass) 0%, var(--grass-shadow) 100%);
  color: var(--fog);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.8rem, 4vw, 3rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  background-color: var(--fog);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -34%;
  width: 44%;
  height: 168%;
  background-image: linear-gradient(160deg, rgba(255, 74, 28, .09), rgba(20, 82, 59, .07));
  transform: rotate(9deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.1rem;
}

.page-faq .faq-hero__eyebrow { margin: 0; }

.page-faq .faq-hero__title {
  margin: 0;
  line-height: .94;
  letter-spacing: -.03em;
  color: var(--ink);
}

.page-faq .faq-hero__side {
  display: flex;
  flex-direction: column;
  gap: .7rem;
}

.page-faq .faq-hero__side .lede { margin: 0; }

/* ---------- 索引 ---------- */

.page-faq .faq-index {
  border-top: 1px solid var(--line-light);
}

.page-faq .faq-index__grid {
  counter-reset: faqidx;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.2rem);
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}

.page-faq .faq-group__title {
  margin: 0 0 .85rem;
  padding-bottom: .55rem;
  border-bottom: 2px solid var(--ink);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index__list li {
  counter-increment: faqidx;
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .52rem 0;
  border-bottom: 1px dashed var(--line-light);
}

.page-faq .faq-index__list li::before {
  content: counter(faqidx, decimal-leading-zero);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--fox-deep);
}

.page-faq .faq-index__list a {
  color: var(--ink);
  font-size: .95rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color .15s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--fox-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 折叠问答通用 ---------- */

.page-faq .faq-list {
  display: grid;
  gap: .7rem;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

.page-faq .faq-list--plain { margin-top: clamp(1.2rem, 2.4vw, 1.6rem); }

.page-faq .faq-item {
  padding: 0 clamp(1rem, 2vw, 1.35rem);
  border: 1px solid var(--faq-item-line);
  border-radius: var(--radius-md);
  background-color: var(--faq-item-bg);
  transition: border-color .18s ease, background-color .18s ease, box-shadow .18s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 74, 28, .45);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-item:target {
  border-color: var(--fox);
  box-shadow: 0 0 0 3px rgba(255, 74, 28, .14);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: clamp(.95rem, 2vw, 1.15rem) 0;
  font-size: clamp(1rem, 1.15vw, 1.12rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--faq-q-color);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q > span:first-child { flex: 1 1 auto; }

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: var(--pill);
  background-color: var(--faq-sign-bg);
  transition: transform .22s ease, background-color .18s ease;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 7px;
  right: 7px;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background-color: var(--faq-sign-line);
  transform: translateY(-50%);
}

.page-faq .faq-item__sign::after { transform: translateY(-50%) rotate(90deg); }

.page-faq .faq-item[open] .faq-item__sign {
  transform: rotate(45deg);
  background-color: var(--fox);
}

.page-faq .faq-item[open] .faq-item__sign::before,
.page-faq .faq-item[open] .faq-item__sign::after {
  background-color: var(--white);
}

.page-faq .faq-item__a {
  padding-bottom: clamp(1rem, 2vw, 1.3rem);
}

.page-faq .faq-item__a > p {
  max-width: 62ch;
  margin: 0 0 .7rem;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--faq-a-color);
}

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

.page-faq .faq-link {
  color: var(--fox-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-link:hover { color: var(--fox); }

.page-faq .faq-taglist {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: .9rem 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 深色区块内的一致性 ---------- */

.page-faq .faq-block--dark .t-h2,
.page-faq .faq-block--dark .faq-item__q { color: var(--fog); }

.page-faq .faq-block--dark .divider { background-color: var(--gold); }

.page-faq .faq-block--dark .eyebrow { color: var(--gold); }

.page-faq .faq-block--dark .meta-line { color: rgba(244, 245, 247, .62); }

.page-faq .faq-block--dark .faq-item {
  --faq-item-bg: rgba(255, 255, 255, .05);
  --faq-item-line: var(--line-dark);
  --faq-a-color: rgba(244, 245, 247, .84);
  --faq-sign-bg: rgba(255, 255, 255, .1);
  --faq-sign-line: var(--gold);
}

.page-faq .faq-block--dark .faq-item[open] {
  --faq-item-bg: rgba(255, 255, 255, .09);
  border-color: rgba(255, 200, 61, .45);
}

.page-faq .faq-block--dark .faq-item[open] .faq-item__sign::before,
.page-faq .faq-block--dark .faq-item[open] .faq-item__sign::after {
  background-color: var(--ink);
}

.page-faq .faq-block--dark .faq-link { color: var(--gold); }

.page-faq .lede.faq-lede--dark {
  max-width: 62ch;
  margin: 0;
  color: rgba(244, 245, 247, .84);
}

.page-faq .lede.faq-lede--grass {
  max-width: 62ch;
  margin: 0;
  color: rgba(244, 245, 247, .86);
}

.page-faq .faq-figure--dark { margin-top: clamp(1.6rem, 3vw, 2.4rem); }

/* ---------- 数据节奏带 ---------- */

.page-faq .faq-pace {
  display: grid;
  margin: clamp(1.6rem, 3vw, 2.2rem) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .faq-pace__step {
  padding: 1.05rem 1.15rem 1.15rem;
  background-color: rgba(255, 255, 255, .03);
  border-top: 1px solid var(--line-dark);
}

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

.page-faq .faq-pace__k {
  display: block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-pace__label {
  display: block;
  margin-top: .45rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-pace__desc {
  display: block;
  margin-top: .3rem;
  font-size: .86rem;
  line-height: 1.6;
  color: rgba(244, 245, 247, .64);
}

/* ---------- 地图章节 ---------- */

.page-faq .faq-map__layout {
  display: grid;
  gap: clamp(1.6rem, 3.5vw, 2.6rem);
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

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

.page-faq .faq-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .55rem 1rem;
  margin-top: 1rem;
}

.page-faq .faq-legend__item {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0;
  font-size: .86rem;
  color: var(--ink);
}

.page-faq .faq-legend__swatch {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.page-faq .faq-legend__swatch--fox { background-color: var(--fox); }

.page-faq .faq-legend__swatch--mint {
  background-color: var(--mint);
  box-shadow: 0 0 0 2px rgba(46, 158, 107, .28);
}

.page-faq .faq-legend__swatch--electric { background-color: var(--electric); }

.page-faq .faq-legend__swatch--gold { background-color: var(--gold); }

/* ---------- 草原区块内的折叠条 ---------- */

.page-faq .faq-block--grass .t-h2 { color: var(--white); }

.page-faq .faq-block--grass .eyebrow { color: var(--gold); }

.page-faq .faq-block--grass .divider { background-color: var(--gold); }

.page-faq .faq-block--grass .meta-line { color: rgba(244, 245, 247, .66); }

.page-faq .faq-block--grass .faq-item {
  --faq-item-bg: rgba(255, 255, 255, .06);
  --faq-item-line: rgba(244, 245, 247, .18);
  --faq-a-color: rgba(244, 245, 247, .86);
  --faq-sign-bg: rgba(255, 255, 255, .12);
  --faq-sign-line: var(--gold);
}

.page-faq .faq-block--grass .faq-item__q { color: var(--fog); }

.page-faq .faq-block--grass .faq-item[open] {
  --faq-item-bg: rgba(255, 255, 255, .1);
  border-color: rgba(255, 200, 61, .5);
}

.page-faq .faq-block--grass .faq-item[open] .faq-item__sign {
  background-color: var(--gold);
}

.page-faq .faq-block--grass .faq-item[open] .faq-item__sign::before,
.page-faq .faq-block--grass .faq-item[open] .faq-item__sign::after {
  background-color: var(--grass-shadow);
}

.page-faq .faq-block--grass .faq-link { color: var(--gold); }

.page-faq .faq-block--grass .tag {
  background-color: rgba(255, 255, 255, .12);
  color: var(--fog);
}

/* ---------- 收尾 ---------- */

.page-faq .faq-closing__inner {
  display: grid;
  gap: clamp(1.6rem, 3vw, 2.4rem);
}

.page-faq .faq-closing__panel {
  padding: clamp(1.3rem, 2.6vw, 1.9rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background-color: rgba(255, 255, 255, .04);
}

.page-faq .faq-closing__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .5rem 1rem;
  margin: 0 0 .8rem;
}

.page-faq .faq-closing__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-faq .faq-closing__value {
  font-size: 1rem;
  color: var(--fog);
  word-break: break-word;
}

.page-faq .faq-closing__note {
  margin: 0 0 1.3rem;
  font-size: .86rem;
  line-height: 1.65;
  color: rgba(244, 245, 247, .62);
}

.page-faq .faq-closing__btn { text-decoration: none; }

/* ---------- 响应式 ---------- */

@media (min-width: 600px) {
  .page-faq .faq-legend { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 720px) {
  .page-faq .faq-index__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 760px) {
  .page-faq .faq-pace { grid-template-columns: repeat(3, minmax(0, 1fr)); }

  .page-faq .faq-pace__step {
    border-top: 0;
    border-left: 1px solid var(--line-dark);
  }

  .page-faq .faq-pace__step:first-child { border-left: 0; }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    column-gap: clamp(2rem, 5vw, 4.5rem);
    row-gap: .9rem;
    align-items: end;
  }

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

  .page-faq .faq-hero__title { grid-column: 1; }

  .page-faq .faq-hero__side {
    grid-column: 2;
    padding-bottom: .5rem;
  }

  .page-faq .faq-closing__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .88fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-map__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-index__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: clamp(1.6rem, 3vw, 2.4rem);
  }
}

/* ---------- 打印 ---------- */

@media print {
  .page-faq .faq-item > .faq-item__a { display: block; }

  .page-faq .faq-item__sign { display: none; }

  .page-faq .faq-block--dark,
  .page-faq .faq-block--grass {
    background: none;
    color: #000;
  }

  .page-faq .faq-block--dark .faq-item__q,
  .page-faq .faq-block--grass .faq-item__q { color: #000; }

  .page-faq .faq-block--dark .faq-item__a > p,
  .page-faq .faq-block--grass .faq-item__a > p { color: #000; }
}