.page-faq {
  --faq-side: 288px;
  --faq-top: 84px;
  --faq-grid-line: rgba(11, 61, 46, 0.07);
  --faq-body-soft: rgba(20, 24, 26, 0.78);
  --faq-soft-reverse: rgba(244, 241, 232, 0.76);
  background: var(--paper);
  color: var(--carbon);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(30px, 5vw, 52px);
  border-bottom: 2px solid var(--green);
  background-image: repeating-linear-gradient(90deg, var(--faq-grid-line) 0 1px, transparent 1px 44px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero .eyebrow {
  margin-bottom: 14px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(2.2rem, 7.4vw, 4.4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-faq .faq-hero__lede {
  margin-top: clamp(18px, 2.6vw, 26px);
  max-width: 62ch;
  font-size: clamp(1.0625rem, 1.7vw, 1.1875rem);
  line-height: 1.8;
  color: var(--faq-body-soft);
}

.page-faq .faq-hero__scale {
  height: 3px;
  margin-top: clamp(24px, 4vw, 38px);
  background: var(--orange);
  transform-origin: left center;
  animation: faq-scale-draw 760ms var(--ease) both;
}

@keyframes faq-scale-draw {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-toc__item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  color: var(--carbon);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-toc__item:hover,
.page-faq .faq-toc__item:focus-visible {
  border-bottom-color: var(--orange);
  color: var(--green);
}

.page-faq .faq-toc__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-toc__label {
  font-size: 0.9375rem;
  font-weight: 600;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(36px, 5vw, 64px);
  padding: clamp(40px, 7vw, 84px) 0 clamp(48px, 8vw, 92px);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) var(--faq-side);
    align-items: start;
  }
  .page-faq .faq-aside {
    position: sticky;
    top: var(--faq-top);
  }
}

/* ---------- 区块通用 ---------- */
.page-faq .idx {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-block + .faq-block,
.page-faq .faq-process + .faq-block {
  margin-top: clamp(56px, 9vw, 104px);
}

.page-faq .faq-block__head {
  display: grid;
  gap: 12px;
}

.page-faq .faq-block__head h2 {
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-faq .faq-block__lead {
  max-width: 58ch;
  line-height: 1.8;
  color: var(--faq-body-soft);
}

.page-faq .faq-block__foot {
  margin-top: clamp(18px, 3vw, 26px);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--faq-body-soft);
}

.page-faq .faq-block__foot a,
.page-faq .faq-cite a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图片 ---------- */
.page-faq .figure__frame {
  overflow: hidden;
  border: 2px solid var(--green);
  background: var(--gray);
}

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

.page-faq .figure figcaption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--silver);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(20, 24, 26, 0.64);
}

.page-faq .faq-fig {
  margin: clamp(24px, 4vw, 40px) 0 clamp(28px, 4vw, 42px);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--line);
}

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

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 1rem;
  align-items: start;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.page-faq .qa__no {
  padding-top: 0.42em;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .qa__q {
  font-size: clamp(1.0625rem, 1.9vw, 1.25rem);
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .qa__sign {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 0.5em;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  background: var(--green);
  transition: transform 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .qa__sign::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .qa__sign::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .qa[open] .qa__sign::after {
  transform: scaleY(0);
}

.page-faq .qa[open] .qa__sign::before {
  background: var(--orange);
}

.page-faq .qa__body {
  padding: 0 0 clamp(20px, 3vw, 30px) 0;
  animation: faq-fade 220ms var(--ease) both;
}

@keyframes faq-fade {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

.page-faq .qa__body p {
  max-width: 62ch;
  line-height: 1.8;
  color: var(--faq-body-soft);
}

.page-faq .qa__body p + p {
  margin-top: 0.9em;
}

@media (min-width: 560px) {
  .page-faq .qa__body {
    padding-left: calc(2.4rem + 10px);
  }
}

/* ---------- 勘误流程（深色块） ---------- */
.page-faq .faq-process {
  position: relative;
  margin-top: clamp(56px, 9vw, 104px);
  padding: clamp(30px, 5vw, 48px) clamp(20px, 4vw, 46px) clamp(32px, 5vw, 52px);
  background: linear-gradient(158deg, var(--green) 0%, var(--green-deep) 100%);
  color: var(--paper);
  border: 2px solid var(--green-deep);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-process::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 92px;
  height: 8px;
  background: var(--orange);
  transform: skewX(-10deg);
  transform-origin: left bottom;
}

.page-faq .faq-process .idx {
  color: var(--orange-light);
}

.page-faq .faq-process__head {
  display: grid;
  gap: 12px;
}

.page-faq .faq-process__head h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-process__head p {
  max-width: 56ch;
  line-height: 1.8;
  color: var(--faq-soft-reverse);
}

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin: clamp(26px, 4vw, 40px) 0 clamp(24px, 4vw, 34px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding-top: 14px;
  border-top: 2px solid rgba(255, 107, 53, 0.9);
}

.page-faq .faq-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: -18px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: rotate(45deg);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .faq-step__title {
  margin: 6px 0 8px;
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-step p {
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--faq-soft-reverse);
}

.page-faq .faq-process__fig {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-process__fig .figure__frame {
  border-color: var(--green-light);
  background: var(--green-deep);
}

.page-faq .faq-process__fig figcaption {
  border-left-color: var(--orange);
  color: var(--faq-soft-reverse);
}

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 24px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
  .page-faq .faq-step:not(:last-child)::after {
    left: auto;
    right: -14px;
    bottom: auto;
    top: 20px;
    width: 8px;
    height: 8px;
    transform: rotate(45deg);
  }
}

/* ---------- 定义列表 ---------- */
.page-faq .faq-dl {
  margin-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-dl__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-dl__row dt {
  position: relative;
  padding-left: 14px;
  font-size: 0.9375rem;
  font-weight: 800;
  line-height: 1.6;
}

.page-faq .faq-dl__row dt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--blue);
}

.page-faq .faq-dl__row dd {
  margin: 0;
  max-width: 62ch;
  line-height: 1.82;
  color: var(--faq-body-soft);
}

@media (min-width: 768px) {
  .page-faq .faq-dl__row {
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 0 28px;
    padding: 20px 0;
  }
}

/* ---------- 引用规范 ---------- */
.page-faq .faq-cite {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-cite li {
  position: relative;
  padding: 18px 0 18px 32px;
  border-bottom: 1px solid var(--line);
  line-height: 1.82;
  color: var(--faq-body-soft);
}

.page-faq .faq-cite li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 30px;
  width: 12px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 侧栏速查卡 ---------- */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-sheet {
  border: 2px solid var(--green);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-sheet__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  background: var(--green);
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-sheet__head:focus-visible {
  outline: 2px solid var(--blue-light);
  outline-offset: -3px;
}

.page-faq .faq-sheet__title {
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.page-faq .faq-sheet__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-sheet__row {
  display: grid;
  gap: 3px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sheet__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-sheet__row dt {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: rgba(20, 24, 26, 0.58);
}

.page-faq .faq-sheet__row dd {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--green);
}

.page-faq .faq-sheet__link {
  display: block;
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--blue);
  text-decoration: none;
}

.page-faq .faq-sheet__link:hover,
.page-faq .faq-sheet__link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 继续提问 ---------- */
.page-faq .faq-ask {
  padding: clamp(40px, 7vw, 88px) 0 clamp(48px, 8vw, 92px);
  background: var(--gray);
  border-top: 2px solid var(--green);
}

.page-faq .faq-ask__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-ask__copy h2 {
  margin: 10px 0 16px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-faq .faq-ask__copy p {
  max-width: 54ch;
  line-height: 1.82;
  color: var(--faq-body-soft);
}

.page-faq .faq-ask__note {
  margin-top: 12px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(20, 24, 26, 0.66);
}

.page-faq .faq-ask__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-content: start;
}

.page-faq .faq-channel {
  padding: 18px;
  background: var(--paper);
  border: 2px solid var(--green);
  box-shadow: 4px 4px 0 rgba(7, 42, 31, 0.12);
}

.page-faq .faq-channel__label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(20, 24, 26, 0.58);
}

.page-faq .faq-channel__value {
  display: block;
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--green);
  word-break: break-all;
}

.page-faq .faq-channel p {
  font-size: 0.8125rem;
  line-height: 1.72;
  color: rgba(20, 24, 26, 0.68);
}

.page-faq .faq-ask__cta {
  margin-top: clamp(24px, 4vw, 36px);
}

.page-faq .faq-ask__cta .btn {
  text-decoration: none;
}

@media (min-width: 640px) {
  .page-faq .faq-ask__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-ask__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__scale,
  .page-faq .qa__body {
    animation: none;
  }
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-toc__item {
    transition: none;
  }
}