.page-faq {
  --faq-hair: rgba(122, 134, 168, .26);
  --faq-gap: clamp(36px, 5vw, 56px);
  position: relative;
  background: var(--void);
  color: var(--silver);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 4vw, 32px) 0 clamp(44px, 7vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-color: var(--void);
  background-image:
    linear-gradient(to right, var(--faq-hair) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-hair) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .3) 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .3) 70%, transparent 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  z-index: -1;
  width: min(52%, 560px);
  height: 4px;
  background: linear-gradient(90deg, var(--blue) 0 50%, var(--red) 50% 100%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
}

.page-faq .faq-hero-main {
  min-width: 0;
}

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(17, 24, 52, .8);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  max-width: 17em;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(30px, 7.2vw, 52px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-lede {
  margin: 0 0 28px;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-faq .faq-toc a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(17, 24, 52, .7);
  color: var(--silver);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  border-color: var(--blue-lit);
  background: rgba(27, 77, 255, .18);
  color: var(--white);
}

.page-faq .faq-toc-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .faq-hero-rail {
  display: none;
}

/* ============ 双栏工作台 ============ */
.page-faq .faq-body {
  padding: clamp(48px, 7vw, 88px) 0 clamp(56px, 8vw, 96px);
}

.page-faq .faq-columns {
  display: grid;
  gap: 44px;
}

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

.page-faq .faq-block {
  margin-bottom: 60px;
}

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

.page-faq .faq-block-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block-idx {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--red);
}

.page-faq .faq-block--blue .faq-block-idx {
  color: var(--blue-lit);
}

.page-faq .faq-block-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(20px, 3.6vw, 24px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-scope {
  margin: 0 0 24px;
  padding: 13px 18px;
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(27, 77, 255, .12);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-block .media-frame {
  margin: 0 0 12px;
}

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

.page-faq .faq-block .media-caption {
  margin: 0 0 26px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--grid);
}

/* ============ 字段卡 ============ */
.page-faq .field-cards {
  display: grid;
  gap: 14px;
}

.page-faq .field-card {
  position: relative;
  padding: 20px 22px 20px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .field-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--faq-accent, var(--grid));
  transition: top var(--dur) var(--ease), bottom var(--dur) var(--ease);
}

.page-faq .field-card--half { --faq-accent: var(--red); }
.page-faq .field-card--pass { --faq-accent: var(--blue-lit); }
.page-faq .field-card--sub  { --faq-accent: var(--cyan); }

.page-faq .field-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.4;
  color: var(--faq-accent, var(--white));
}

.page-faq .field-card p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-faq .field-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--grid);
}

/* 问答展开时，左栏对应字段卡高亮 */
.page-faq:has(.faq-item--half[open]) .field-card--half,
.page-faq:has(.faq-item--pass[open]) .field-card--pass,
.page-faq:has(.faq-item--sub[open]) .field-card--sub {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 1px var(--faq-accent), 0 18px 40px -28px var(--faq-accent);
}

/* ============ 更新节点表 ============ */
.page-faq .faq-table-wrap {
  margin-bottom: 26px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
}

.page-faq .faq-timing {
  width: 100%;
  min-width: 460px;
  border-collapse: collapse;
}

.page-faq .faq-timing thead th {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 14, 26, .72);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-align: left;
  color: var(--cyan);
}

.page-faq .faq-timing tbody th,
.page-faq .faq-timing tbody td {
  padding: 15px 16px;
  border-bottom: 1px solid rgba(42, 51, 88, .8);
  text-align: left;
  vertical-align: top;
}

.page-faq .faq-timing tbody th {
  width: 34%;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--white);
}

.page-faq .faq-timing tbody td {
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-timing tbody tr:last-child th,
.page-faq .faq-timing tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-timing tbody tr:hover th,
.page-faq .faq-timing tbody tr:hover td {
  background: rgba(27, 77, 255, .12);
}

.page-faq .faq-timing .dot {
  margin-right: 6px;
}

/* ============ 问答手风琴 ============ */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(230, 25, 60, .55);
  background: rgba(17, 24, 52, .96);
}

.page-faq .faq-item > summary {
  position: relative;
  display: block;
  padding: 16px 52px 16px 24px;
  border-radius: var(--r-md);
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

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

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

.page-faq .faq-item > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--line);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item[open] > summary::before {
  background: var(--red);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--red-lit);
}

.page-faq .faq-item > summary:hover::before {
  background: var(--blue);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-q-idx {
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-faq .faq-a {
  margin-top: 2px;
  padding: 14px 24px 20px;
  border-top: 1px dashed rgba(122, 134, 168, .3);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a a {
  color: var(--blue-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 134, 255, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq .faq-a-tag {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

/* ============ 核验通道 ============ */
.page-faq .faq-help {
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(165deg, rgba(27, 77, 255, .18) 0%, rgba(11, 14, 26, 0) 64%),
    var(--panel);
}

.page-faq .faq-help h2 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(20px, 3.4vw, 24px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-help p {
  margin: 0 0 18px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-help-list {
  display: grid;
  gap: 9px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-help-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-footnote {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--grid);
}

.page-faq .faq-footnote a {
  color: var(--blue-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(92, 134, 255, .4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-faq .field-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-hero-rail {
    display: flex;
    align-items: stretch;
    justify-content: flex-end;
    gap: 16px;
  }

  .page-faq .faq-scale {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 2px;
    height: 172px;
    margin: 0;
    padding: 0;
    list-style: none;
    background: var(--line);
  }

  .page-faq .faq-scale li {
    width: 14px;
    height: 1px;
    margin-left: -6px;
    background: var(--grid);
    opacity: .5;
    transition: background var(--dur) var(--ease), opacity var(--dur) var(--ease);
  }

  .page-faq .faq-scale li:nth-child(4) {
    width: 22px;
    background: var(--cyan);
    opacity: 1;
  }

  .page-faq .faq-scale:hover li {
    background: var(--cyan);
    opacity: .8;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-columns {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--faq-gap);
    align-items: start;
  }
}

@media (max-width: 719px) {
  .page-faq .faq-block {
    margin-bottom: 44px;
  }

  .page-faq .faq-timing {
    min-width: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
  }
}