.page-faq {
  --faq-ink: var(--c-white);
  --faq-panel: rgba(18, 48, 76, 0.68);
  --faq-ink-soft: #414a52;
  --faq-moss-deep: #1f7a6b;
  display: block;
  background: var(--c-river);
  color: var(--c-text-2);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */
.faq-hero {
  position: relative;
  padding: clamp(22px, 5vw, 52px) 0 clamp(40px, 7vw, 80px);
  background:
    radial-gradient(110% 90% at 88% -20%, rgba(47, 158, 139, 0.28), transparent 62%),
    linear-gradient(180deg, var(--c-lift), rgba(10, 28, 46, 0.35) 94%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.faq-hero::before {
  content: "";
  position: absolute;
  left: 38%;
  right: -14%;
  bottom: -42%;
  height: 220px;
  background: linear-gradient(90deg, transparent, rgba(228, 177, 90, 0.2), transparent);
  transform: rotate(-7deg);
  pointer-events: none;
}

.faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  font-size: 13px;
}

.faq-hero__eyebrow {
  margin: 18px 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-moss);
}

.faq-hero__title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(2rem, 8vw, 4.25rem);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--faq-ink);
}

.faq-hero__lead {
  margin: 20px 0 0;
  max-width: 44rem;
  font-size: clamp(0.98rem, 2.4vw, 1.08rem);
  color: var(--c-text-2);
}

.faq-hero__quick {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-hero__quick a {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--glass);
  color: var(--c-cream);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.faq-hero__quick a:hover,
.faq-hero__quick a:focus-visible {
  border-color: var(--c-moss);
  color: var(--c-white);
  transform: translateY(-2px);
}

/* ---------- 主体骨架 ---------- */
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-top: clamp(34px, 6vw, 72px);
  padding-bottom: clamp(34px, 6vw, 72px);
}

.faq-index__label {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-text-2);
}

.faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.faq-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--c-text-2);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.faq-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--c-moss);
}

.faq-index__link:hover,
.faq-index__link:focus-visible {
  color: var(--c-white);
  border-color: var(--line-strong);
}

.faq-index__link[aria-current="location"] {
  color: var(--c-white);
  border-color: var(--c-gold);
  background: rgba(228, 177, 90, 0.12);
}

.faq-flow {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.faq-section {
  scroll-margin-top: 96px;
  padding-bottom: clamp(34px, 5vw, 56px);
}

.faq-section + .faq-section {
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4vw, 46px);
}

.faq-section__head {
  margin-bottom: 20px;
}

.faq-section__kicker {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-moss);
}

.faq-section__title {
  margin: 0;
  font-size: clamp(1.4rem, 3.6vw, 2.15rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--faq-ink);
}

.faq-section__text {
  margin: 10px 0 0;
  max-width: 46rem;
}

.faq-inline-link {
  color: var(--c-gold);
  text-decoration: underline;
  text-decoration-color: rgba(228, 177, 90, 0.4);
  text-underline-offset: 3px;
}

.faq-inline-link:hover,
.faq-inline-link:focus-visible {
  text-decoration-color: var(--c-gold);
}

/* ---------- 编号步骤 ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.steps__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.steps__item:last-child {
  border-bottom: 1px solid var(--line);
}

.steps__num {
  font-family: var(--font-num);
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--c-gold);
  letter-spacing: -0.02em;
}

.steps__title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--faq-ink);
}

.steps__body p {
  margin: 0;
  max-width: 42rem;
}

/* ---------- 折叠问答 ---------- */
.qa {
  border-top: 1px solid var(--line);
}

.qa:last-of-type {
  border-bottom: 1px solid var(--line);
}

.qa__summary {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 18px;
  gap: 12px;
  align-items: start;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
}

.qa__summary::-webkit-details-marker {
  display: none;
}

.qa__summary:focus-visible {
  outline: 2px solid var(--c-moss);
  outline-offset: 2px;
}

.qa__no {
  padding-top: 4px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-moss);
}

.qa__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--faq-ink);
}

.qa__mark {
  width: 12px;
  height: 12px;
  margin-top: 6px;
  border-right: 2px solid var(--c-moss);
  border-bottom: 2px solid var(--c-moss);
  transform: rotate(45deg);
  transition: transform 0.18s var(--ease);
}

.qa[open] .qa__mark {
  transform: rotate(225deg);
}

.qa__body {
  margin-left: 30px;
  padding: 0 0 18px 16px;
  border-left: 3px solid var(--c-moss);
  animation: faq-drop 0.26s var(--ease) both;
}

.qa__body p {
  margin: 0 0 10px;
  max-width: 44rem;
}

.qa__body p:last-child {
  margin-bottom: 0;
}

@keyframes faq-drop {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- 状态标签说明 ---------- */
.faq-labels {
  margin-top: 26px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--faq-panel);
}

.faq-labels__title {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--faq-ink);
}

.faq-labels__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-labels__note {
  margin: 14px 0 0;
  font-size: 14px;
}

/* ---------- 浅底收藏区 ---------- */
.faq-light {
  margin-top: 6px;
  padding: clamp(22px, 4vw, 42px);
  border-radius: var(--r-lg);
  background: var(--c-cream);
  color: var(--faq-ink-soft);
}

.faq-light .faq-section__kicker {
  color: var(--faq-moss-deep);
}

.faq-light .faq-section__title {
  color: var(--c-river);
}

.faq-light .faq-section__text {
  color: #4a545c;
}

.faq-light .faq-inline-link {
  color: #b3481a;
  text-decoration-color: rgba(179, 72, 26, 0.4);
}

.faq-light .faq-inline-link:hover,
.faq-light .faq-inline-link:focus-visible {
  text-decoration-color: #b3481a;
}

.faq-light .qa {
  border-top-color: rgba(43, 52, 60, 0.16);
}

.faq-light .qa:last-of-type {
  border-bottom-color: rgba(43, 52, 60, 0.16);
}

.faq-light .qa__no {
  color: var(--faq-moss-deep);
}

.faq-light .qa__title {
  color: var(--c-river);
}

.faq-light .qa__mark {
  border-right-color: var(--faq-moss-deep);
  border-bottom-color: var(--faq-moss-deep);
}

.faq-light .qa__body {
  border-left-color: var(--faq-moss-deep);
}

.faq-steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.faq-steps__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid rgba(43, 52, 60, 0.16);
}

.faq-steps__item:last-child {
  border-bottom: 1px solid rgba(43, 52, 60, 0.16);
}

.faq-steps__num {
  font-family: var(--font-num);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--faq-moss-deep);
}

.faq-steps__text {
  margin: 0;
}

.faq-light .figure {
  margin: 24px 0 0;
}

.faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 导出字段列表 ---------- */
.faq-fields {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
}

.faq-fields li {
  position: relative;
  padding-left: 18px;
}

.faq-fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 2px;
  background: var(--c-gold);
}

/* ---------- 图片 ---------- */
.page-faq .figure {
  margin: 24px 0;
}

.page-faq .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}

.page-faq .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--c-text-2);
}

.faq-light .figure__img {
  border-color: rgba(43, 52, 60, 0.16);
}

/* ---------- 页尾收束 ---------- */
.faq-closing {
  margin-top: clamp(20px, 4vw, 40px);
  padding: clamp(36px, 6vw, 76px) 0;
  background: linear-gradient(158deg, var(--c-lift), var(--c-river) 68%);
  border-top: 1px solid var(--line-strong);
}

.faq-closing__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.faq-closing__kicker {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.faq-closing__title {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 4.4vw, 2.5rem);
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--faq-ink);
}

.faq-closing__text {
  margin: 0;
  max-width: 40rem;
}

.faq-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.faq-contact__item {
  padding-left: 14px;
  border-left: 2px solid var(--c-moss);
}

.faq-contact__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-text-2);
}

.faq-contact__value {
  display: block;
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--faq-ink);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .faq-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .faq-layout {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .faq-index {
    position: sticky;
    top: 104px;
  }

  .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .faq-index__link {
    justify-content: flex-start;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 9px 12px;
    white-space: normal;
  }

  .faq-index__link[aria-current="location"] {
    border-left-color: var(--c-orange);
    background: linear-gradient(90deg, rgba(255, 106, 43, 0.14), transparent);
  }

  .steps__item {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 24px;
    padding: 24px 0;
  }

  .qa__summary {
    grid-template-columns: 44px minmax(0, 1fr) 22px;
    padding: 20px 2px;
  }

  .qa__body {
    margin-left: 44px;
    padding-left: 22px;
  }

  .faq-closing__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body {
    animation: none;
  }

  .faq-hero__quick a,
  .faq-index__link,
  .qa__mark {
    transition: none;
  }
}