.page-faq {
  --faq-soft: rgba(20, 69, 58, 0.38);
  --faq-soft-open: rgba(20, 69, 58, 0.72);
  display: block;
  background: var(--ink-green);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: 0;
}

/* ===== 头部横幅 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(28px, 4.6vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(199, 206, 210, 0.055) 0 1px, transparent 1px 88px),
    linear-gradient(148deg, var(--deep-turf) 0%, var(--ink-green) 58%, #0A2019 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: 44%;
  height: 170%;
  background: linear-gradient(180deg, rgba(255, 106, 26, 0.18), rgba(255, 106, 26, 0));
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 880px;
  font-family: var(--font-display);
  font-size: clamp(29px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.01em;
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  max-width: 680px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(16px, 3vw, 34px);
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__num {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hero__media {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ===== 主体双栏 ===== */
.page-faq .faq-body {
  padding-top: clamp(36px, 5.5vw, 64px);
}

.page-faq .faq-tabs {
  display: grid;
  gap: clamp(20px, 3vw, 44px);
  grid-template-columns: 1fr;
}

/* ===== 左侧分类轨道 ===== */
.page-faq .faq-rail {
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
}

.page-faq .faq-tab {
  box-sizing: border-box;
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  background: rgba(19, 20, 23, 0.45);
  color: var(--text-soft);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-tab:hover {
  border-left-color: var(--amber);
  transform: translateX(2px);
}

.page-faq .faq-tab[aria-selected="true"] {
  border-left-color: var(--signal);
  background: var(--carbon);
  color: var(--paper);
}

.page-faq .faq-tab__num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--silver);
}

.page-faq .faq-tab[aria-selected="true"] .faq-tab__num {
  color: var(--signal);
}

.page-faq .faq-tab__label {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-tab:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ===== 问答流 ===== */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-panel {
  box-sizing: border-box;
  outline: none;
}

.page-faq .faq-panel__title {
  position: relative;
  margin: 0 0 10px;
  padding-left: 18px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-faq .faq-panel__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 6px;
  height: 20px;
  background: var(--signal);
}

.page-faq .faq-panel__lead {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  max-width: 620px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ===== 折叠条目 ===== */
.page-faq .faq-item {
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--faq-soft);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item[open] {
  border-left-color: var(--signal);
  background: var(--faq-soft-open);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.5vw, 16.5px);
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  color: var(--silver);
}

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

.page-faq .faq-item__text {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 14px;
  height: 14px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 13px;
  height: 2px;
  background: var(--silver);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-item__icon::before {
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__icon::before,
.page-faq .faq-item[open] .faq-item__icon::after {
  background: var(--signal);
}

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

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

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  max-width: 620px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .kw {
  display: inline;
  padding: 1px 6px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(199, 206, 210, 0.14);
  color: var(--silver);
  font-size: 0.9em;
  letter-spacing: 0.02em;
}

.page-faq .faq-panel__media {
  max-width: 520px;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
}

/* ===== 下一步 ===== */
.page-faq .faq-next {
  margin-top: clamp(44px, 7vw, 88px);
  padding: clamp(32px, 5vw, 60px) 0;
  border-top: 1px solid var(--line);
  background: var(--carbon);
}

.page-faq .faq-next__inner {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  grid-template-columns: 1fr;
}

.page-faq .faq-next__copy .section__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-faq .faq-next__copy .section__lead {
  margin: 0;
  max-width: 520px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-mute);
}

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

.page-faq .faq-next__links li {
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
  background: rgba(20, 69, 58, 0.42);
}

.page-faq .faq-next__links a {
  display: block;
  box-sizing: border-box;
  padding: 14px 16px;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: 0.03em;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-next__links a:hover {
  background: rgba(255, 106, 26, 0.14);
  transform: translateX(2px);
}

.page-faq .faq-next__links a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

/* ===== 响应式 ===== */
@media (min-width: 620px) {
  .page-faq .faq-next__links {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-next__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-tabs {
    grid-template-columns: 230px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 140px;
  }

  .page-faq .faq-tab {
    min-height: 50px;
    padding: 14px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tab,
  .page-faq .faq-item,
  .page-faq .faq-next__links a,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }

  .page-faq .faq-tab:hover,
  .page-faq .faq-next__links a:hover {
    transform: none;
  }
}