/* ===== page-faq : 数据答疑 ===== */
.page-faq {
  --faq-gap: clamp(20px, 3vw, 36px);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(36px, 6vw, 88px);
}

.page-faq .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(22px, 3.6vw, 48px) 0 clamp(24px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-size: clamp(46px, 9vw, 104px);
  line-height: .94;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: clamp(64px, 12vw, 140px);
  height: 6px;
  margin-top: 18px;
  background: var(--orange);
}

.page-faq .faq-hero__lede {
  max-width: 64ch;
  margin: 0 0 28px;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: #d7e3dc;
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-hero__stat {
  background: var(--ink-2);
  padding: 14px 16px;
  display: grid;
  gap: 6px;
}

.page-faq .faq-hero__stat .num {
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-hero__stat span:last-child {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mature);
}

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

.page-faq .faq-hero__figure .media {
  overflow: hidden;
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

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

@media (min-width: 760px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding: clamp(24px, 4vw, 56px) 0 0;
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(170px, 216px) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
  }
}

/* ---------- 左侧分类锚点 ---------- */
.page-faq .faq-rail {
  border-top: 2px solid var(--orange);
  padding-top: 14px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mature);
}

.page-faq .faq-rail__nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__link {
  flex: 0 0 auto;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  font-size: 14.5px;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: var(--ink-2);
  border-color: var(--orange);
  color: var(--amber);
}

.page-faq .faq-rail__num {
  font-size: 11.5px;
  color: var(--orange);
}

.page-faq .faq-rail__note {
  display: none;
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mature);
}

@media (min-width: 980px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 26px;
  }

  .page-faq .faq-rail__nav {
    flex-direction: column;
    overflow: visible;
    gap: 0;
    padding-bottom: 0;
  }

  .page-faq .faq-rail__link {
    border: 0;
    border-left: 2px solid var(--line);
    padding: 11px 10px 11px 14px;
  }

  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--orange);
  }

  .page-faq .faq-rail__note {
    display: block;
  }
}

/* ---------- 分区与标题 ---------- */
.page-faq .faq-group {
  border-top: 1px solid var(--line);
  padding-top: clamp(20px, 3vw, 30px);
  margin-bottom: clamp(38px, 6vw, 74px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group:first-child {
  border-top-color: var(--orange);
}

.page-faq .faq-group__head {
  margin-bottom: 22px;
}

.page-faq .faq-group__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0 0 12px;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.02em;
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: #cfdcd6;
}

.page-faq .faq-sub {
  margin-top: 30px;
}

.page-faq .faq-sub__title {
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--mature);
}

/* ---------- 问答抽屉 ---------- */
.page-faq .faq-q {
  margin: 0 0 10px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-q[open] {
  border-left-color: var(--orange);
  background: #143a2d;
}

.page-faq .faq-q__q {
  cursor: pointer;
  list-style: none;
  display: flex;
  gap: 12px;
  padding: 16px 20px 16px 18px;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--paper);
}

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

.page-faq .faq-q__q::before {
  content: "Q";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.95;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-q[open] .faq-q__q::before {
  color: var(--amber);
}

.page-faq .faq-q__q:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -3px;
}

.page-faq .faq-q__a {
  padding: 0 20px 20px 44px;
  animation: faq-drop .26s var(--ease);
}

.page-faq .faq-q__a p {
  margin: 0 0 10px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.92;
  color: #d6e2db;
}

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

@keyframes faq-drop {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 560px) {
  .page-faq .faq-q__a {
    padding-left: 20px;
  }
}

/* ---------- 字段名强调 ---------- */
.page-faq .fx {
  font-family: var(--font-mono);
  font-size: .93em;
  color: var(--amber);
  background: rgba(255, 179, 71, .1);
  border-bottom: 1px solid rgba(255, 179, 71, .38);
  padding: 1px 4px;
}

/* ---------- 图文占位 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 4px;
}

.page-faq .faq-figure .media {
  overflow: hidden;
  background: var(--ink-2);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-figure .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mature);
}

/* ---------- 对照阅读顺序 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-steps__item {
  background: var(--ink-2);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-steps__i {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-steps__item p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #d5e1da;
}

.page-faq .faq-steps__item strong {
  color: var(--paper);
}

/* ---------- 联系信息块 ---------- */
.page-faq .faq-contact {
  margin-top: 26px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-contact__item {
  background: var(--ink-2);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--mature);
}

.page-faq .faq-contact__v {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mature);
}

@media (min-width: 700px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 行内链接 ---------- */
.page-faq .faq-link {
  color: var(--amber);
  text-decoration: underline;
  text-decoration-color: rgba(255, 179, 71, .45);
  text-underline-offset: 3px;
  transition: color .18s var(--ease), text-decoration-color .18s var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--orange);
  text-decoration-color: var(--orange);
}