/* ============================================
   page-faq : 帮助中心
   所有选择器限定在 .page-faq 作用域内
   ============================================ */

.page-faq {
  --faq-hair: 1px solid var(--line);
  --faq-hair-strong: 1px solid var(--line-strong);
  --faq-edge: 2px solid var(--c-ink);
  --faq-lift: -2px;
  --faq-t: .18s var(--ease);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb-wrap {
  padding-top: clamp(18px, 2.6vw, 30px);
}

.page-faq .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font: 500 12px/1.5 var(--font-mono);
  letter-spacing: .08em;
  color: var(--text-dim);
}

.page-faq .breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-faq .breadcrumb a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--faq-t), color var(--faq-t);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--c-cyan-soft);
  border-bottom-color: var(--c-cyan-soft);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text-strong);
}

/* ---------- 页头 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: 16px;
  background: var(--c-deep);
  border-top: var(--faq-edge);
  border-bottom: var(--faq-edge);
}

.page-faq .faq-hero-media {
  position: absolute;
  inset: 0;
  opacity: .16;
  pointer-events: none;
}

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

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(112deg,
      rgba(11, 31, 58, .97) 0%,
      rgba(11, 31, 58, .90) 48%,
      rgba(11, 31, 58, .60) 100%);
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(34px, 5vw, 66px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(27px, 4.4vw, 45px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--text-strong);
}

.page-faq .faq-hero-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-quick a {
  display: inline-flex;
  align-items: center;
  padding: 10px 15px;
  border: 2px solid var(--line-strong);
  background: rgba(18, 46, 82, .62);
  color: var(--text);
  font: 500 12.5px/1 var(--font-mono);
  letter-spacing: .06em;
  text-decoration: none;
  transition: border-color var(--faq-t), color var(--faq-t), transform var(--faq-t);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  border-color: var(--c-cyan);
  color: var(--text-strong);
  transform: translateY(var(--faq-lift));
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-head {
  max-width: 72ch;
}

.page-faq .faq-head .section-title {
  margin-top: 10px;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.page-faq .faq-group {
  border: var(--faq-edge);
  background: var(--c-steel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-group-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  background: var(--c-deep);
  border-bottom: 2px solid transparent;
  transition: background var(--faq-t), border-color var(--faq-t);
}

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

.page-faq .faq-group-summary:hover {
  background: #0E2848;
}

.page-faq .faq-group-summary:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -4px;
}

.page-faq .faq-group[open] .faq-group-summary {
  border-bottom-color: var(--c-ink);
}

.page-faq .faq-group-num {
  flex: none;
  padding: 5px 8px;
  border: 1px solid rgba(255, 138, 61, .5);
  font: 500 12px/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--c-orange);
}

.page-faq .faq-group-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-strong);
}

.page-faq .faq-group-hint {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: 500 15px/1 var(--font-mono);
  color: var(--c-cyan);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-group-hint::before {
  content: "+";
}

.page-faq .faq-group[open] .faq-group-hint::before {
  content: "\2212";
}

.page-faq .faq-group[open] .faq-group-hint {
  color: var(--c-orange);
  border-color: rgba(255, 138, 61, .5);
}

.page-faq .faq-group-body {
  padding: 6px 18px 20px;
  border-left: 3px solid transparent;
  transition: border-color var(--faq-t), padding-left var(--faq-t);
}

.page-faq .faq-group[open] .faq-group-body {
  border-left-color: var(--c-orange);
  padding-left: 15px;
}

.page-faq .faq-entry {
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-entry:last-child {
  border-bottom: none;
  padding-bottom: 2px;
}

.page-faq .faq-q {
  margin: 0;
  font-size: 15.5px;
  font-weight: 800;
  line-height: 1.62;
  color: var(--text-strong);
}

.page-faq .faq-a {
  margin: 8px 0 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 检索示例 ---------- */
.page-faq .faq-figure {
  margin: 28px 0 0;
  border: var(--faq-edge);
  box-shadow: var(--shadow-hard);
  background: var(--c-deep);
  overflow: hidden;
}

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

.page-faq .faq-map {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: var(--faq-hair-strong);
}

.page-faq .faq-map-row {
  border-bottom: var(--faq-hair);
}

.page-faq .faq-map-row a {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 13px 12px;
  text-decoration: none;
  transition: background var(--faq-t);
}

.page-faq .faq-map-row a:hover,
.page-faq .faq-map-row a:focus-visible {
  background: rgba(34, 211, 197, .11);
}

.page-faq .faq-map-row a:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-faq .faq-map-key {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-strong);
  letter-spacing: .01em;
}

.page-faq .faq-map-dash {
  display: none;
  height: 2px;
  background: var(--line-strong);
  transition: background var(--faq-t);
}

.page-faq .faq-map-row a:hover .faq-map-dash,
.page-faq .faq-map-row a:focus-visible .faq-map-dash {
  background: var(--c-orange);
}

.page-faq .faq-map-target {
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-cyan-soft);
  letter-spacing: .02em;
}

.page-faq .faq-map-row a:hover .faq-map-target,
.page-faq .faq-map-row a:focus-visible .faq-map-target {
  color: var(--c-cyan);
}

/* ---------- 栏目速查表 ---------- */
.page-faq .faq-table-wrap {
  margin-top: 28px;
  border: var(--faq-edge);
  box-shadow: var(--shadow-hard-sm);
  background: var(--c-deep);
  overflow: hidden;
}

.page-faq .faq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-table thead th {
  background: var(--c-orange-soft);
  color: var(--c-ink);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .07em;
  text-align: left;
  padding: 11px 14px;
  border-bottom: var(--faq-edge);
}

.page-faq .faq-table tbody td {
  padding: 11px 14px;
  border-bottom: var(--faq-hair);
  color: var(--text);
  line-height: 1.62;
  vertical-align: top;
}

.page-faq .faq-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(18, 46, 82, .52);
}

.page-faq .faq-table tbody tr {
  transition: background var(--faq-t);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(34, 211, 197, .11);
}

.page-faq .faq-table tbody tr:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-faq .faq-table tbody td:first-child {
  font-weight: 800;
  color: var(--text-strong);
  white-space: nowrap;
}

/* ---------- 仍未解决 ---------- */
.page-faq .faq-help {
  max-width: 660px;
  margin: 0 auto;
  padding: clamp(22px, 4vw, 38px);
  border: var(--faq-edge);
  background: var(--c-steel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-help h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--text-strong);
}

.page-faq .faq-help p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .faq-help-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-help-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .faq-help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--c-orange);
}

.page-faq .faq-help-mail {
  font: 500 14.5px/1.7 var(--font-mono);
  letter-spacing: .02em;
  color: var(--c-cyan);
  overflow-wrap: anywhere;
}

.page-faq .faq-help-note {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

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

/* ============================================
   响应式
   ============================================ */

@media (min-width: 640px) {
  .page-faq .faq-map-row a {
    grid-template-columns: minmax(0, 1fr) 72px minmax(0, 1fr);
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
  }

  .page-faq .faq-map-dash {
    display: block;
  }
}

@media (min-width: 861px) {
  .page-faq .faq-hero-media {
    left: auto;
    width: 46%;
    opacity: .42;
  }

  .page-faq .faq-hero::before {
    background:
      linear-gradient(100deg,
        rgba(11, 31, 58, .98) 0%,
        rgba(11, 31, 58, .94) 40%,
        rgba(11, 31, 58, .64) 78%,
        rgba(11, 31, 58, .50) 100%);
  }

  .page-faq .faq-group-body {
    padding: 10px 30px 26px;
  }

  .page-faq .faq-group[open] .faq-group-body {
    padding-left: 27px;
  }

  .page-faq .faq-group-summary {
    padding: 18px 26px;
  }

  .page-faq .faq-table tbody td,
  .page-faq .faq-table thead th {
    padding: 12px 18px;
  }
}

@media (max-width: 639px) {
  .page-faq .faq-table,
  .page-faq .faq-table thead,
  .page-faq .faq-table tbody,
  .page-faq .faq-table tr,
  .page-faq .faq-table td {
    display: block;
    width: 100%;
  }

  .page-faq .faq-table thead {
    display: none;
  }

  .page-faq .faq-table tbody tr {
    padding: 13px 14px;
    border-bottom: var(--faq-edge);
    background: rgba(18, 46, 82, .48);
  }

  .page-faq .faq-table tbody tr:last-child {
    border-bottom: none;
  }

  .page-faq .faq-table tbody td {
    border-bottom: none;
    padding: 3px 0;
    white-space: normal;
  }

  .page-faq .faq-table tbody td::before {
    display: block;
    content: attr(data-label);
    margin-bottom: 5px;
    font: 500 10.5px/1 var(--font-mono);
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--c-cyan);
  }

  .page-faq .faq-table tbody td:first-child::before {
    color: var(--c-orange);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick a,
  .page-faq .faq-map-row a,
  .page-faq .faq-group-summary,
  .page-faq .faq-group-body,
  .page-faq .faq-table tbody tr {
    transition: none;
  }

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