.page-faq {
  --faq-surface: #FFFCF4;
  --faq-rule: rgba(22, 48, 74, 0.14);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 4.5vw, 48px) 0 0;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -140px;
  width: min(560px, 78vw);
  height: 320px;
  background: linear-gradient(125deg, var(--c-green-050) 0%, var(--c-yellow-100) 100%);
  transform: rotate(-7deg);
  border-radius: 2px;
  z-index: 0;
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 12px 0 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 44px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--c-ink-900);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-ink-900);
}

@media (min-width: 720px) {
  .page-faq .faq-hero__lede { font-size: 17px; }
}

/* 首屏数字带 */
.page-faq .faq-stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-faq .faq-stats__item {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 10px 14px;
  border-left: 3px solid var(--c-green-300);
  background: var(--faq-surface);
  border-radius: 2px;
}

.page-faq .faq-stats__num {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-green-600);
}

.page-faq .faq-stats__label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--c-gray-500);
}

@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border: 3px solid var(--c-navy-900);
    box-shadow: var(--shadow-hard-sm);
    background: var(--faq-surface);
    border-radius: 2px;
  }
  .page-faq .faq-stats__item {
    display: block;
    border-left: 0;
    border-right: 2px solid var(--c-green-050);
    background: transparent;
    padding: 14px 18px;
  }
  .page-faq .faq-stats__item:last-child { border-right: 0; }
  .page-faq .faq-stats__num { display: block; font-size: 22px; }
  .page-faq .faq-stats__label { display: block; margin-top: 4px; max-width: 22ch; }
}

/* 顶部刻度条 */
.page-faq .faq-meter {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin-top: 24px;
  padding-top: 14px;
  border-top: 2px solid var(--c-green-050);
}

.page-faq .faq-meter__seg {
  height: 6px;
  border-radius: 1px;
  background: rgba(30, 127, 79, 0.18);
}

.page-faq .faq-meter__seg:first-child { background: var(--c-green-600); }
.page-faq .faq-meter__seg:last-child { background: var(--c-yellow-500); }

/* ---------- 流程示意图 ---------- */
.page-faq .faq-flow {
  margin: 30px 0 0;
}

.page-faq .faq-flow .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-faq .faq-flow .media__img { aspect-ratio: 21 / 9; }
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 36px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(215px, 285px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

/* 左侧锚点索引 */
.page-faq .faq-rail__title {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-green-300);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-gray-500);
}

.page-faq .faq-index {
  display: grid;
  gap: 4px;
}

.page-faq .faq-index .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 12px;
  border: 2px solid transparent;
  border-left: 3px solid var(--c-green-300);
  border-radius: 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-ink-900);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index .faq-index__link:hover {
  background: var(--c-green-050);
  border-left-color: var(--c-green-600);
}

.page-faq .faq-index .faq-index__link[aria-current="true"] {
  background: var(--c-yellow-100);
  border-left-color: var(--c-yellow-500);
  font-weight: 700;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-green-600);
}

.page-faq .faq-index .faq-index__link[aria-current="true"] .faq-index__num { color: var(--c-navy-900); }

.page-faq .faq-rail__note {
  margin-top: 20px;
}

.page-faq .faq-rail__note .btn {
  margin-top: 12px;
}

@media (min-width: 960px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 分组抽屉 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-group {
  border: 3px solid var(--c-navy-900);
  border-radius: 2px;
  background: var(--faq-surface);
  box-shadow: var(--shadow-hard-sm);
  scroll-margin-top: 118px;
}

.page-faq .faq-group[open] {
  box-shadow: var(--shadow-hard-green);
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 66px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-group__head:hover { background: rgba(228, 242, 233, 0.5); }

.page-faq .faq-group__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 42px;
  height: 42px;
  border: 2px solid var(--c-green-600);
  border-radius: 2px;
  background: var(--c-green-050);
  color: var(--c-green-600);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-group[open] .faq-group__num {
  background: var(--c-green-600);
  color: var(--c-paper-050);
}

.page-faq .faq-group__text {
  display: block;
  min-width: 0;
}

.page-faq .faq-group__label {
  display: block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--c-ink-900);
}

.page-faq .faq-group__desc {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-gray-500);
}

.page-faq .faq-group__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
}

.page-faq .faq-group__sign::before,
.page-faq .faq-group__sign::after {
  content: "";
  position: absolute;
  background: var(--c-navy-900);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-group__sign::before { left: 0; right: 0; top: 10px; height: 2px; }
.page-faq .faq-group__sign::after { top: 0; bottom: 0; left: 10px; width: 2px; }

.page-faq .faq-group[open] .faq-group__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-group__body {
  padding: 4px 16px 18px;
  border-top: 2px dashed var(--c-green-300);
  animation: faq-open var(--dur) var(--ease);
}

.page-faq .faq-group[open] .faq-group__head { padding-bottom: 12px; }

@media (min-width: 720px) {
  .page-faq .faq-group__head { padding: 16px 22px; }
  .page-faq .faq-group__label { font-size: 20px; }
  .page-faq .faq-group__body { padding: 6px 22px 22px; }
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-item {
  padding: 16px 0;
  border-bottom: 2px solid var(--c-green-050);
}

.page-faq .faq-item:first-child { padding-top: 8px; }
.page-faq .faq-item:last-child { border-bottom: 0; padding-bottom: 2px; }

.page-faq .faq-q {
  margin: 0 0 8px;
  max-width: 40ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--c-ink-900);
}

.page-faq .faq-a {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-ink-900);
}

.page-faq .faq-a a {
  color: var(--c-green-600);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-faq .faq-a a:hover {
  color: var(--c-navy-900);
  background: var(--c-yellow-100);
}

@media (min-width: 720px) {
  .page-faq .faq-q { font-size: 19px; }
  .page-faq .faq-a { font-size: 16.5px; }
}

/* ---------- 底部通栏氛围图 ---------- */
.page-faq .faq-banner {
  margin: 38px 0 0;
}

.page-faq .faq-banner .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-faq .faq-banner .media__img { aspect-ratio: 8 / 3; }
}

/* ---------- 来信引导 ---------- */
.page-faq .faq-help {
  margin-top: 34px;
  padding: clamp(22px, 4vw, 40px);
  border: 3px solid var(--c-navy-900);
  border-radius: 2px;
  background: var(--c-navy-900);
  box-shadow: var(--shadow-hard-yellow);
  scroll-margin-top: 118px;
}

.page-faq .faq-help__eyebrow {
  color: var(--c-yellow-500);
}

.page-faq .faq-help__eyebrow::before {
  background: var(--c-yellow-500);
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--c-paper-050);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-deep-text);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 720px) {
  .page-faq .faq-help__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1080px) {
  .page-faq .faq-help__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.page-faq .faq-help__item {
  padding: 14px 16px;
  border: 2px solid var(--c-navy-700);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .faq-help__k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-deep-muted);
}

.page-faq .faq-help__v {
  display: block;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--c-deep-text);
  word-break: break-word;
  text-decoration: none;
}

a.faq-help__v:hover,
a.faq-help__v:focus-visible {
  color: var(--c-yellow-500);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 2px solid var(--c-navy-700);
}

.page-faq .faq-help__link {
  border-color: var(--c-deep-text);
  color: var(--c-deep-text);
}

.page-faq .faq-help__link:hover {
  border-color: var(--c-yellow-500);
  color: var(--c-navy-900);
  background: var(--c-yellow-500);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-group__body { animation: none; }
  .page-faq .faq-group__sign::before,
  .page-faq .faq-group__sign::after,
  .page-faq .faq-group__num,
  .page-faq .faq-index .faq-index__link { transition: none; }
}