/* ===== 使用指南 /guide/ ===== */
.page-faq {
  --faq-block-gap: clamp(44px, 6vw, 76px);
  --faq-head-top: clamp(20px, 3.4vw, 40px);
  background: var(--snow);
  color: var(--ink);
  overflow-x: clip;
}

.page-faq img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-faq .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 13px;
  color: var(--stone);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  padding-top: var(--faq-head-top);
}

.page-faq .faq-head-copy {
  max-width: 74ch;
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.015em;
}

.page-faq .faq-title::after {
  content: "";
  display: block;
  width: clamp(72px, 14vw, 148px);
  height: 5px;
  margin-top: clamp(18px, 2.6vw, 28px);
  border-radius: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--red) 100%);
}

.page-faq .faq-lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(16px, 1.2vw, 17px);
  line-height: 1.78;
}

.page-faq .faq-stamp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  padding: 8px 16px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-pill);
  background: var(--white);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-faq .faq-stamp::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.page-faq .faq-hero {
  margin: clamp(30px, 5vw, 54px) 0 0;
}

.page-faq .faq-hero .media-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-faq .faq-hero .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-hero .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 刻度分隔 ---------- */
.page-faq .faq-rule {
  height: 7px;
  margin-top: clamp(38px, 6vw, 70px);
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-gold) 0 1px,
    transparent 1px 24px
  );
  background-repeat: repeat-x;
  background-size: 24px 7px;
  background-position: left center;
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(30px, 5vw, 64px);
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  padding: 22px 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-s);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: var(--gold-soft);
}

.page-faq .faq-index-list .mono {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-faq .faq-index-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 内容列 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: var(--faq-block-gap);
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  padding-top: clamp(34px, 4.5vw, 52px);
  border-top: 1px solid var(--line-gold);
  scroll-margin-top: 104px;
}

.page-faq .faq-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 62px;
  height: 3px;
  background: var(--gold);
}

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

.page-faq .faq-block:first-child::before {
  display: none;
}

.page-faq .faq-block-head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: 16px;
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 18px);
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 33px);
  line-height: 1.24;
  letter-spacing: -0.005em;
}

.page-faq .faq-block-lead {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.78;
}

.page-faq .faq-takeaway {
  margin: 0 0 24px;
  padding: 14px 18px;
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: linear-gradient(100deg, var(--gold-soft) 0%, rgba(235, 203, 139, 0.28) 100%);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-list--after {
  margin-top: clamp(26px, 3.4vw, 40px);
}

.page-faq .faq-q {
  padding: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin: 0;
  padding: 17px clamp(18px, 2.4vw, 24px);
  list-style: none;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
  transition: background var(--t-fast);
}

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

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

.page-faq .faq-q > summary:hover,
.page-faq .faq-q > summary:focus-visible {
  background: rgba(235, 203, 139, 0.26);
}

.page-faq .faq-q[open] > summary {
  background: rgba(235, 203, 139, 0.2);
}

.page-faq .faq-q > summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.2;
  color: var(--gold);
}

.page-faq .faq-q[open] > summary::after {
  content: "\2013";
}

.page-faq .faq-q .fold-body {
  padding: 4px clamp(18px, 2.4vw, 24px) 20px;
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-q .fold-body p {
  margin: 0;
}

/* ---------- 五步流程 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-step {
  position: relative;
  padding-left: 40px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 20px;
  bottom: -18px;
  width: 1px;
  background: var(--line-gold);
}

.page-faq .faq-step:last-child::before {
  display: none;
}

.page-faq .faq-step-dot {
  position: absolute;
  left: 0;
  top: 6px;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--white);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  color: var(--clay);
}

.page-faq .faq-step-body {
  padding: 16px 20px 18px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
  transition: transform var(--t-mid), box-shadow var(--t-mid), border-color var(--t-mid);
}

.page-faq .faq-step-body:hover {
  transform: translateY(-4px);
  border-color: var(--line-gold);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-step-label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}

.page-faq .faq-step-body h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
}

/* ---------- 人工协助面板 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(24px, 3.4vw, 40px);
  border-radius: var(--radius-l);
  background: var(--navy);
  color: var(--snow);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-help h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--snow);
}

.page-faq .faq-check {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.65;
  color: rgba(247, 245, 241, 0.86);
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-faq .faq-help-note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(247, 245, 241, 0.76);
}

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

.page-faq .faq-help-figure {
  margin: 0;
}

.page-faq .faq-help-figure .media-frame {
  border: 1px solid var(--line-light);
  border-radius: var(--radius-m);
  overflow: hidden;
}

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

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(200px, 232px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

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

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-block-head {
    flex-wrap: wrap;
    gap: 6px 10px;
  }

  .page-faq .faq-step {
    padding-left: 32px;
  }

  .page-faq .faq-step-body {
    padding: 14px 16px 16px;
  }

  .page-faq .faq-help {
    padding: 22px 18px;
  }

  .page-faq .faq-q > summary {
    font-size: 16px;
  }

  .page-faq .faq-hero .media-frame {
    border-radius: var(--radius-m);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step-body,
  .page-faq .faq-q > summary,
  .page-faq .faq-index-list a {
    transition: none;
  }

  .page-faq .faq-step-body:hover {
    transform: none;
  }
}