.page-faq {
  --faq-pad: clamp(18px, 4vw, 56px);
  --faq-ink-dark: #0B2B25;
  --faq-muted-dark: #46685F;
  --faq-line-dark: #C9DED6;
  --faq-accent-dark: #12705E;
  background: var(--c-900);
  color: var(--c-ink);
  font-family: var(--shell-font);
  overflow-x: hidden;
}

.page-faq .faq-wrap {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding-inline: var(--faq-pad);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(30px, 5vw, 64px) clamp(38px, 6vw, 88px);
  background: linear-gradient(180deg, var(--c-900) 0%, var(--c-800) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-signal) 12%, transparent 78%);
  opacity: .55;
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 52px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

.page-faq .crumbs a {
  color: var(--c-signal-2);
  text-decoration: none;
}

.page-faq .crumbs a:hover {
  color: var(--c-signal);
}

.page-faq .faq-hero__title {
  margin: 10px 0 20px;
  max-width: 17em;
  font-size: var(--fs-h1);
  font-weight: 250;
  line-height: 1.08;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__lead {
  margin: 0 0 clamp(26px, 4vw, 44px);
  max-width: 34em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px 10px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: rgba(19, 66, 57, .55);
  color: var(--c-ink);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .faq-jump__item:hover {
  border-color: var(--c-signal);
  background: var(--c-700);
}

.page-faq .faq-jump__no {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
  color: var(--c-signal);
}

/* ---------- 区块头部 ---------- */
.page-faq .faq-head {
  max-width: 46em;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-head h2 {
  margin: 8px 0 14px;
  font-size: var(--fs-h2);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-faq .faq-head__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 图片基础 ---------- */
.page-faq .figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-700);
}

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

/* ---------- 三步块 ---------- */
.page-faq .faq-steps {
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--c-800);
}

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

.page-faq .faq-stepgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid transparent;
  border-radius: var(--r-lg);
  background: var(--c-700);
  color: var(--c-ink);
  text-decoration: none;
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
  border-color: var(--c-signal);
  background: #17544A;
}

.page-faq .faq-step__no {
  font-size: clamp(52px, 8vw, 84px);
  font-weight: 200;
  line-height: .9;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: var(--c-signal);
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .01em;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(230, 244, 239, .78);
}

.page-faq .faq-step__link {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-signal-2);
}

/* ---------- 逐步细说 ---------- */
.page-faq .faq-detail {
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--c-900);
}

.page-faq .faq-detail__item {
  display: grid;
  gap: 14px;
  padding-block: clamp(26px, 3.6vw, 44px);
  border-top: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-faq .faq-detail__head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-detail__no {
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
  color: var(--c-warn);
}

.page-faq .faq-detail__head h3 {
  margin: 0;
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 600;
  line-height: 1.3;
}

.page-faq .faq-detail__body p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-ink);
}

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

.page-faq .faq-detail__body a {
  color: var(--c-signal-2);
}

.page-faq .faq-tip {
  display: flex;
  gap: 12px;
  padding: 12px 18px;
  border-left: 3px solid var(--c-warn);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(255, 162, 58, .09);
  font-size: 14px !important;
  line-height: 1.72;
  color: var(--c-ink);
}

.page-faq .faq-tip__k {
  flex: 0 0 auto;
  color: var(--c-warn);
  font-weight: 600;
  letter-spacing: .06em;
}

/* ---------- 常见问题（浅色区） ---------- */
.page-faq .faq-ask {
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--c-paper);
  color: var(--faq-ink-dark);
}

.page-faq .faq-ask .eyebrow {
  color: var(--faq-accent-dark);
}

.page-faq .faq-ask .faq-head__lead {
  color: var(--faq-muted-dark);
}

.page-faq .faq-list {
  border-top: 1px solid var(--faq-line-dark);
}

.page-faq .faq-q {
  border-bottom: 1px solid var(--faq-line-dark);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 6px 20px 16px;
  border-left: 3px solid transparent;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--faq-ink-dark);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

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

.page-faq .faq-q summary:hover {
  border-left-color: var(--faq-accent-dark);
}

.page-faq .faq-q[open] summary {
  border-left-color: var(--c-signal);
}

.page-faq .faq-q__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 2px;
  background: var(--faq-accent-dark);
}

.page-faq .faq-q__mark::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__mark::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
  transition: transform var(--t-mid) var(--ease), opacity var(--t-mid) var(--ease);
}

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

.page-faq .faq-q__body {
  padding: 0 40px 22px 16px;
  animation: faq-open var(--t-mid) var(--ease);
}

.page-faq .faq-q__body p {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-muted-dark);
}

.page-faq .faq-q__body a {
  color: var(--faq-accent-dark);
  font-weight: 600;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 自查清单 ---------- */
.page-faq .faq-check {
  padding-block: clamp(44px, 7vw, 96px);
  background: linear-gradient(180deg, var(--c-900) 0%, var(--c-800) 100%);
}

.page-faq .checklist {
  max-width: 62em;
}

.page-faq .checklist__track {
  display: flex;
  gap: 6px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-faq .check-dot {
  width: 34px;
  height: 4px;
  border-radius: var(--r-pill);
  background: var(--c-700);
  transition: background var(--t-mid) var(--ease);
}

.page-faq .checklist:has(#faq-chk-1:checked) .check-dot--1,
.page-faq .checklist:has(#faq-chk-2:checked) .check-dot--2,
.page-faq .checklist:has(#faq-chk-3:checked) .check-dot--3,
.page-faq .checklist:has(#faq-chk-4:checked) .check-dot--4 {
  background: var(--c-signal);
}

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

.page-faq .checklist__item {
  position: relative;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: rgba(19, 66, 57, .6);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .checklist__item:hover {
  border-color: var(--c-signal-2);
}

.page-faq .checklist__item label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
}

.page-faq .checklist__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-faq .checklist__box {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1.5px solid var(--c-muted);
  border-radius: 6px;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .checklist__input:checked + .checklist__box {
  background: var(--c-signal);
  border-color: var(--c-signal);
}

.page-faq .checklist__input:checked + .checklist__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--c-900);
  border-bottom: 2px solid var(--c-900);
  transform: rotate(45deg);
}

.page-faq .checklist__input:focus-visible + .checklist__box {
  outline: 2px solid var(--c-signal);
  outline-offset: 2px;
}

.page-faq .checklist__text {
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-faq .checklist__text strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: var(--c-signal-2);
}

.page-faq .checklist__done {
  display: none;
  margin: 22px 0 0;
  padding: 16px 20px;
  border: 1px solid rgba(43, 232, 196, .35);
  border-radius: var(--r-md);
  background: rgba(43, 232, 196, .1);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .checklist:has(#faq-chk-1:checked):has(#faq-chk-2:checked):has(#faq-chk-3:checked):has(#faq-chk-4:checked) .checklist__done {
  display: block;
}

.page-faq .checklist__done a {
  color: var(--c-signal);
}

/* ---------- 阅读建议 ---------- */
.page-faq .faq-reading {
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--c-900);
}

.page-faq .faq-reading__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-points {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--c-signal);
  transform: rotate(45deg);
}

.page-faq .faq-points strong {
  color: var(--c-signal-2);
  font-weight: 600;
}

/* ---------- 联系方式 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--c-800);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-contact__title {
  margin: 8px 0 16px;
  max-width: 20em;
  font-size: var(--fs-h2);
  font-weight: 500;
  line-height: 1.22;
}

.page-faq .faq-contact__lead {
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-faq .faq-contact__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-contact__aside {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: rgba(7, 35, 30, .55);
}

.page-faq .faq-contact__aside-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-signal);
}

.page-faq .faq-contact__links {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-faq .faq-contact__links a {
  color: var(--c-signal-2);
  font-weight: 600;
}

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-faq .faq-stepgrid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-detail__item {
    grid-template-columns: minmax(200px, 240px) 1fr;
    column-gap: clamp(28px, 4vw, 72px);
    align-items: start;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-reading__grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-jump__item {
    flex: 1 1 100%;
  }

  .page-faq .faq-q__body {
    padding-right: 12px;
  }

  .page-faq .faq-contact__cta .btn {
    flex: 1 1 100%;
    justify-content: center;
  }
}