.page-faq {
  --faq-rail-w: 152px;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(18px, 3vw, 34px);
  padding: clamp(22px, 4vw, 46px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.5vw, 42px);
  border: 1px solid var(--line);
  background:
    linear-gradient(140deg, rgba(63, 240, 192, 0.09) 0%, transparent 46%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 94%);
  overflow: hidden;
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    repeating-linear-gradient(58deg, var(--line-soft) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(-32deg, var(--line-soft) 0 1px, transparent 1px 56px);
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-hero__copy,
.page-faq .faq-hero__figure {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.page-faq .faq-hero .display {
  margin: 0;
  font-size: clamp(29px, 5vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__marks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 类别标签索引 ---------- */
.page-faq .faq-index {
  margin-top: clamp(20px, 3vw, 34px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 14px 15px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--grid);
  background: var(--ink-2);
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-tab:hover,
.page-faq .faq-tab:focus-visible {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(63, 240, 192, 0.07);
  transform: translateY(-2px);
}

.page-faq .faq-tab__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-tab__name {
  font-size: 15.5px;
  font-weight: 800;
}

.page-faq .faq-tab__hint {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 主体：左刻度 + 分组 ---------- */
.page-faq .faq-body {
  margin-top: clamp(30px, 5vw, 58px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

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

.page-faq .faq-rail__cap {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin-bottom: 14px;
}

.page-faq .faq-rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-rail li {
  position: relative;
}

.page-faq .faq-rail li::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 50%;
  width: 9px;
  height: 1px;
  background: var(--grid);
  transition: width var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail li:hover::before {
  width: 15px;
  background: var(--cyan);
}

.page-faq .faq-rail a {
  display: flex;
  gap: 9px;
  padding: 9px 0;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-rail a .mono {
  color: var(--orange);
  font-size: 11px;
}

.page-faq .faq-rail a:hover,
.page-faq .faq-rail a:focus-visible {
  color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--masthead-h) + 22px);
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 5.5vw, 68px);
}

.page-faq .faq-group__head {
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 3px solid var(--orange);
}

.page-faq .faq-group__head .h2 {
  margin: 8px 0 8px;
  font-size: clamp(21px, 2.7vw, 29px);
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-group__head .lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  border: 1px solid var(--line);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.55;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-left: auto;
  margin-top: 2px;
  border: 1px solid var(--grid);
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cyan);
}

.page-faq .faq-item__sign::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .faq-item__a {
  padding: 16px 18px 20px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-item__lead {
  margin: 0 0 10px;
  padding-left: 12px;
  border-left: 3px solid var(--orange);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.6;
  color: var(--paper);
  max-width: 62ch;
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .faq-item__a p:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-item__next {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-item__next::after {
  content: "→";
}

.page-faq .faq-item__next:hover,
.page-faq .faq-item__next:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 自查流程图 ---------- */
.page-faq .faq-flow {
  margin: 22px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px dashed var(--line);
  background: rgba(14, 44, 68, 0.5);
}

.page-faq .faq-flow img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-faq .faq-flow__cap {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 自助工具卡片 ---------- */
.page-faq .tool-cards {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .tool-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  border: 1px dashed var(--line);
  background: transparent;
  color: var(--paper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), border-style var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .tool-card:hover,
.page-faq .tool-card:focus-visible {
  border-style: solid;
  border-color: var(--cyan);
  background: rgba(63, 240, 192, 0.08);
  transform: translateY(-2px);
}

.page-faq .tool-card__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .tool-card__name {
  font-size: 15.5px;
  font-weight: 800;
}

.page-faq .tool-card__use {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.page-faq .tool-card:hover .tool-card__use,
.page-faq .tool-card:focus-visible .tool-card__use {
  color: var(--paper);
}

/* ---------- 兜底联系区 ---------- */
.page-faq .faq-help {
  position: relative;
  margin-top: clamp(44px, 6vw, 82px);
  padding: clamp(26px, 4.5vw, 52px);
  background: var(--paper);
  color: var(--ink);
  border-top: 6px solid var(--orange);
  overflow: hidden;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(6, 26, 43, 0.05) 0 1px, transparent 1px 34px);
  opacity: 0.7;
  pointer-events: none;
}

.page-faq .faq-help__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.5vw, 40px);
}

.page-faq .faq-help__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-faq .faq-help__copy .eyebrow {
  color: var(--vermilion);
}

.page-faq .faq-help__copy .h2 {
  margin: 0;
  font-size: clamp(21px, 2.7vw, 30px);
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-help__copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: #2B4258;
}

.page-faq .faq-help__hours {
  font-size: 14px;
  color: #4A5F72;
}

.page-faq .faq-help__copy .btn--warm {
  margin-top: 6px;
}

.page-faq .faq-contact {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 22px;
  background: var(--ink);
  border: 1px solid var(--grid);
  color: var(--paper);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-contact__label {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-contact__value--text {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-copy {
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border: 1px solid var(--grid);
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  border-color: var(--cyan);
  background: rgba(63, 240, 192, 0.12);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .tool-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-flow {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: center;
    padding: 20px;
  }
}

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

  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--masthead-h) + 28px);
    padding-left: 16px;
    border-left: 2px solid var(--grid);
  }
}
<<<END>>>