/* ===== 支持中心 / 页面作用域：.page-faq ===== */
.page-faq {
  --faq-gap: clamp(10px, 1.6vw, 14px);
  --faq-block: clamp(48px, 8vw, 92px);
  --faq-edge: #FF6B4A;
  display: block;
  background: var(--deep-900);
  color: var(--paper-50);
  overflow-x: clip;
}

.page-faq .shell,
.page-faq .shell--wide {
  min-width: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(112px, 15vh, 172px) 0 clamp(24px, 4vw, 44px);
  background:
    radial-gradient(130% 95% at 8% 0%, #0B2038 0%, rgba(11, 32, 56, 0) 62%),
    radial-gradient(90% 70% at 96% 8%, rgba(0, 229, 255, 0.12) 0%, rgba(0, 229, 255, 0) 60%),
    var(--deep-900);
}

.page-faq .faq-eyebrow {
  margin: clamp(22px, 3vw, 34px) 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-500);
}

.page-faq .faq-h1 {
  margin: 0;
  max-width: 20em;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(28px, 5.2vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-faq .faq-lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-family: var(--font-sans);
  font-size: clamp(15px, 1.1vw, 16.5px);
  line-height: 1.85;
  color: #C9D8E8;
}

.page-faq .faq-hero__fig {
  margin: clamp(28px, 4.4vw, 52px) 0 0;
  border-radius: var(--r-panel);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--deep-800);
}

.page-faq .faq-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2000 / 800;
  object-fit: cover;
}

.page-faq .faq-hero__fig .media__cap {
  display: block;
  padding: 10px 16px 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--slate-400);
  background: var(--deep-800);
}

/* ---------- 分类标签（吸顶横滑） ---------- */
.page-faq .faq-tabs {
  position: sticky;
  top: var(--head-h-compact);
  z-index: 6;
  margin-top: clamp(20px, 3vw, 34px);
  padding: 10px 0;
  background: rgba(6, 20, 38, 0.9);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-tabs__list {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 2px var(--pad-x);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 40px), transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 40px), transparent 100%);
}

.page-faq .faq-tabs__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tabs__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size: 14px;
  text-decoration: none;
  color: var(--paper-50);
  transition:
    border-color 160ms var(--ease),
    background-color 160ms var(--ease),
    color 160ms var(--ease),
    transform 240ms var(--ease);
}

.page-faq .faq-tabs__link:hover {
  border-color: var(--cyan-500);
  color: var(--cyan-300);
  transform: translateY(-2px);
}

.page-faq .faq-tabs__link:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 3px;
}

.page-faq .faq-tabs__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-500);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-block) 0;
  scroll-margin-top: calc(var(--head-h-compact) + 78px);
}

.page-faq .faq-group--alt {
  background: var(--deep-800);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(22px, 3.4vw, 38px);
  padding-bottom: clamp(16px, 2vw, 22px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-group__tag {
  margin: 0 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate-400);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-50);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 40ch;
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-item {
  background: var(--deep-700);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-card);
  overflow: hidden;
  transition: border-color 160ms var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--line-cyan);
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper-50);
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: -2px;
}

.page-faq .faq-item__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

.page-faq .faq-item[open] .faq-item__idx {
  color: var(--cyan-500);
}

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

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--cyan-300);
  transition:
    border-color 160ms var(--ease),
    background-color 160ms var(--ease),
    color 160ms var(--ease),
    transform 240ms var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  inset: 50% 6px auto;
  height: 1.5px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform 240ms var(--ease), opacity 160ms var(--ease);
}

.page-faq .faq-item__mark::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--cyan-500);
  border-color: var(--cyan-500);
  color: var(--deep-900);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

/* ---------- 答案区：纸白对读 ---------- */
.page-faq .faq-item__a {
  background: var(--paper-50);
  color: var(--ink-900);
  padding: 16px 16px 20px;
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.85;
  border-top: 1px solid rgba(10, 22, 34, 0.08);
}

.page-faq .faq-item__a p {
  margin: 0;
  max-width: 46em;
}

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

.page-faq .faq-item__a a {
  color: #0E4A73;
  text-decoration: none;
  border-bottom: 1px dashed rgba(14, 74, 115, 0.55);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  color: #062E49;
  border-bottom-color: #062E49;
}

.page-faq .faq-n {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 0.95em;
  color: #0E4A73;
  letter-spacing: -0.01em;
}

/* ---------- 边界分组：珊瑚橙左竖线 ---------- */
.page-faq .faq-list--edge .faq-item {
  box-shadow: inset 3px 0 0 0 var(--faq-edge);
}

.page-faq .faq-list--edge .faq-item__q {
  padding-left: 20px;
}

.page-faq .faq-list--edge .faq-item__a {
  padding-left: 20px;
}

/* ---------- 面板分组：双栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
  min-width: 0;
}

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

.page-faq .faq-side {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-side__fig {
  margin: 0;
  border-radius: var(--r-panel);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--deep-700);
}

.page-faq .faq-side__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 1000;
  object-fit: cover;
}

.page-faq .faq-side__fig .media__cap {
  display: block;
  padding: 10px 14px 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--slate-400);
}

.page-faq .faq-side__card {
  padding: 18px;
  border-radius: var(--r-card);
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--slate-400);
}

.page-faq .faq-side__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-side__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-sans);
  font-size: 14px;
  text-decoration: none;
  color: var(--paper-50);
  transition:
    border-color 160ms var(--ease),
    color 160ms var(--ease),
    background-color 160ms var(--ease);
}

.page-faq .faq-side__list a:hover,
.page-faq .faq-side__list a:focus-visible {
  border-color: var(--cyan-500);
  color: var(--cyan-300);
}

/* ---------- 节奏卡带 ---------- */
.page-faq .faq-cadence {
  display: grid;
  gap: 10px;
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-cadence__item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-chart);
  background: linear-gradient(158deg, rgba(18, 51, 89, 0.92) 0%, rgba(11, 32, 56, 0.92) 100%);
}

.page-faq .faq-cadence__k {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

.page-faq .faq-cadence__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--cyan-500);
  letter-spacing: -0.01em;
}

.page-faq .faq-list--cadence .faq-item {
  background: var(--deep-800);
}

/* ---------- 底部跳转 ---------- */
.page-faq .faq-jump {
  margin: clamp(26px, 4vw, 38px) 0 0;
}

.page-faq .faq-jump .btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: var(--r-ctl);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-group__head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 34px;
  }

  .page-faq .faq-group__note {
    padding-bottom: 4px;
    text-align: left;
  }

  .page-faq .faq-cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__q {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq .faq-list--edge .faq-item__q {
    padding-left: 24px;
  }

  .page-faq .faq-item__a {
    padding: 18px 20px 22px;
    font-size: 15px;
  }

  .page-faq .faq-list--edge .faq-item__a {
    padding-left: 24px;
  }
}

/* ---------- 宽屏：非对称双栏 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(34px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero {
    padding-top: clamp(132px, 17vh, 192px);
  }
}

/* ---------- 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs__link,
  .page-faq .faq-item,
  .page-faq .faq-item__mark,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-side__list a {
    transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
  }

  .page-faq .faq-tabs__link:hover {
    transform: none;
  }
}
<<<END>>>