.page-faq {
  --faq-indent: 38px;
  --faq-top-gap: calc(var(--header-h) + 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--ink-green);
  background-image:
    radial-gradient(circle at 84% 16%, rgba(52, 231, 206, 0.16), transparent 46%),
    radial-gradient(circle at 10% 88%, rgba(255, 106, 43, 0.22), transparent 54%);
  color: var(--paper);
  padding: clamp(96px, 17vw, 158px) 0 clamp(48px, 8vw, 78px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(247, 241, 230, 0.1) 1px, transparent 1.4px);
  background-size: 22px 22px;
  opacity: 0.5;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .breadcrumb {
  font-size: 13px;
  color: rgba(247, 241, 230, 0.62);
}

.page-faq .faq-hero .breadcrumb a {
  color: rgba(247, 241, 230, 0.78);
  text-decoration: none;
  border-bottom: 1px solid rgba(247, 241, 230, 0.3);
  padding-bottom: 1px;
}

.page-faq .faq-hero .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-eyebrow {
  margin: 30px 0 16px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-title {
  margin: 0 0 24px;
  max-width: 17ch;
  font-family: var(--font-sans);
  font-size: clamp(34px, 7.4vw, 74px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--paper);
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-faq .faq-lead {
  margin: 0;
  max-width: 62ch;
  color: rgba(247, 241, 230, 0.84);
  font-size: clamp(15.5px, 2vw, 17.5px);
  line-height: 1.85;
}

.page-faq .faq-hero-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
}

.page-faq .faq-hero-foot .tag {
  background: rgba(52, 231, 206, 0.12);
  color: var(--cyan);
  border: 1px solid rgba(52, 231, 206, 0.42);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  padding: 5px 11px;
}

.page-faq .faq-hero-foot .btn {
  margin-left: auto;
}

.page-faq .faq-hero-mark {
  position: absolute;
  right: -8%;
  top: 52%;
  z-index: 1;
  width: min(400px, 54vw);
  transform: translateY(-50%);
  opacity: 0.14;
  pointer-events: none;
}

/* ---------- 主体画布 ---------- */
.page-faq .faq-body {
  background: var(--paper);
  padding: clamp(48px, 8vw, 92px) 0 clamp(62px, 10vw, 118px);
}

.page-faq .faq-grid {
  display: grid;
  gap: 34px;
}

/* ---------- 左侧问题索引 ---------- */
.page-faq .faq-index {
  border-top: 2px solid var(--ink-green);
  padding-top: 16px;
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gray);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid var(--rule);
  background: var(--white);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .faq-index-num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .faq-index-link:hover {
  background: var(--orange-soft);
  border-color: var(--orange);
}

.page-faq .faq-index-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

.page-faq .faq-index-note a {
  color: var(--green-mid);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-top-gap);
  padding-bottom: clamp(40px, 7vw, 62px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(40px, 7vw, 62px);
  border-top: 1px solid var(--rule);
}

.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  align-items: baseline;
  margin-bottom: 20px;
}

.page-faq .faq-group-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: clamp(23px, 3.6vw, 33px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink-green);
}

.page-faq .faq-group-desc {
  grid-column: 2;
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-top: 1px solid var(--rule);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--rule);
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-qnum {
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-faq .faq-qtext {
  font-size: clamp(16px, 2.1vw, 19px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: color 0.25s var(--ease);
}

.page-faq .faq-item summary:hover .faq-qtext,
.page-faq .faq-item summary:focus-visible .faq-qtext {
  color: var(--green-mid);
}

.page-faq .faq-item[open] .faq-qtext {
  color: var(--ink-green);
}

.page-faq .faq-mark {
  position: relative;
  justify-self: end;
  width: 20px;
  height: 20px;
  margin-top: 4px;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
  border-radius: 1px;
  transition: transform 0.28s var(--ease), opacity 0.28s var(--ease);
}

.page-faq .faq-mark::before {
  left: 0;
  right: 0;
  top: 9px;
  height: 2px;
}

.page-faq .faq-mark::after {
  top: 0;
  bottom: 0;
  left: 9px;
  width: 2px;
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-answer {
  padding: 0 0 22px;
}

.page-faq .faq-answer p {
  margin: 0;
  max-width: 68ch;
  padding: 16px 20px;
  background: var(--paper-layer);
  border-left: 3px solid var(--orange);
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 插图 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  outline: 1px solid rgba(12, 42, 30, 0.07);
  outline-offset: 4px;
  background: var(--white);
}

.page-faq .faq-figure--phone {
  max-width: 260px;
}

.page-faq .faq-figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--gray);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-answer {
    padding-left: var(--faq-indent);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(40px, 6vw, 86px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-top-gap);
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index-link {
    padding: 10px 12px;
    border: 0;
    border-left: 3px solid transparent;
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-index-link:hover {
    background: var(--paper-layer);
    border-left-color: var(--orange);
  }

  .page-faq .faq-hero-foot .btn {
    margin-left: auto;
  }
}

@media (max-width: 719px) {
  .page-faq .faq-hero-foot .btn {
    margin-left: 0;
    width: 100%;
    justify-content: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-mark::before,
  .page-faq .faq-mark::after,
  .page-faq .faq-qtext,
  .page-faq .faq-index-link {
    transition: none;
  }

  .page-faq .faq-title {
    transform: none;
  }
}