.page-faq {
  --faq-rail: 244px;
  --faq-gap: 24px;
  --faq-line-soft: rgba(126, 140, 133, 0.16);
  --faq-body: rgba(242, 245, 239, 0.82);
  background: var(--carbon);
  color: var(--warm);
  padding-bottom: 56px;
}

/* 面包屑 */
.page-faq .faq-crumbs {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-crumbs .shell {
  padding-top: 12px;
  padding-bottom: 12px;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--carbon);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 72%;
  height: 165%;
  background: linear-gradient(180deg, rgba(15, 42, 34, 0.95), rgba(15, 42, 34, 0));
  transform: skewX(-14deg) rotate(6deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -14%;
  bottom: -42%;
  width: 58%;
  height: 92%;
  background: radial-gradient(60% 60% at 34% 42%, rgba(47, 212, 198, 0.16), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
  padding-top: 32px;
  padding-bottom: 30px;
}

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

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(242, 245, 239, 0.78);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(15, 42, 34, 0.6);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* 数据一览条 */
.page-faq .faq-stats {
  border-bottom: 1px solid var(--line);
  background: rgba(15, 42, 34, 0.5);
}

.page-faq .faq-stats__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding-top: 0;
  padding-bottom: 0;
  list-style: none;
  background: var(--faq-line-soft);
}

.page-faq .faq-stats__item {
  padding: 16px 14px;
  background: var(--carbon);
}

.page-faq .faq-stats__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  line-height: 1.1;
  color: var(--lime);
}

.page-faq .faq-stats__value--time {
  font-size: var(--fs-18);
  padding-top: 8px;
}

.page-faq .faq-stats__unit {
  margin-left: 3px;
  font-size: var(--fs-12);
  color: var(--sage);
}

.page-faq .faq-stats__label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-12);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--sage);
}

/* 主体两栏 */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding-top: 28px;
}

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

/* 左侧分类 */
.page-faq .faq-rail {
  border: 1px solid var(--line);
  background: rgba(20, 56, 45, 0.42);
  padding: 14px 14px 16px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--sage);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-rail__link {
  display: block;
  min-height: 44px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  color: var(--warm);
  font-size: var(--fs-14);
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  border-color: var(--line-lime);
  background: rgba(198, 255, 61, 0.08);
  color: var(--lime);
  outline: none;
}

/* 区块 */
.page-faq .faq-block {
  scroll-margin-top: 88px;
  padding-bottom: 38px;
}

.page-faq .faq-block + .faq-block {
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-block__head {
  margin-bottom: 18px;
}

.page-faq .faq-block__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .faq-block__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: var(--fs-28);
  font-weight: 700;
  line-height: 1.3;
  color: var(--warm);
}

.page-faq .faq-block__intro {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--sage);
}

/* 问答抽屉 */
.page-faq .faq-item {
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  background: linear-gradient(180deg, rgba(20, 56, 45, 0.5), rgba(10, 15, 13, 0.22));
  transition: background 0.2s var(--ease);
}

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

.page-faq .faq-item:hover {
  border-top-color: var(--line-strong);
  border-right-color: var(--line-strong);
  border-bottom-color: var(--line-strong);
}

.page-faq .faq-item[open] {
  border-left-color: var(--lime);
  background: linear-gradient(180deg, rgba(20, 56, 45, 0.8), rgba(10, 15, 13, 0.3));
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__q:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: none;
  min-width: 22px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--sage);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  font-size: var(--fs-18);
  font-weight: 500;
  line-height: 1.5;
  color: var(--warm);
}

.page-faq .faq-item[open] .faq-item__text {
  color: var(--lime);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.page-faq .faq-item__mark::before {
  top: 50%;
  left: 3px;
  right: 3px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__mark::after {
  left: 50%;
  top: 3px;
  bottom: 3px;
  width: 1px;
  transform: translateX(-50%);
}

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

.page-faq .faq-item__a {
  padding: 0 16px 18px;
  animation: faq-fade 0.3s var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--faq-body);
}

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

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

/* 步骤与提示 */
.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 42px;
  counter-increment: faqstep;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .faq-steps li::before {
  content: "0" counter(faqstep);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 1px 6px;
  border: 1px solid var(--line-lime);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--lime);
}

.page-faq .faq-tip {
  margin: 0 0 18px;
  padding: 11px 14px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 176, 32, 0.08);
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(242, 245, 239, 0.76);
}

.page-faq .faq-tip--lime {
  border-left-color: var(--lime);
  background: rgba(198, 255, 61, 0.08);
}

/* 配图 */
.page-faq .faq-figure {
  max-width: 560px;
  margin: 20px 0 0;
  border: 1px solid var(--line);
  background: rgba(15, 42, 34, 0.5);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--sage);
}

/* 联系方式面板 */
.page-faq .faq-contact {
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: rgba(20, 56, 45, 0.5);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
}

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

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--sage);
}

.page-faq .faq-contact__value {
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--warm);
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

/* 响应式 */
@media (min-width: 700px) {
  .page-faq .faq-hero__title {
    font-size: 38px;
  }

  .page-faq .faq-hero__lead {
    font-size: var(--fs-18);
  }

  .page-faq .faq-block__title {
    font-size: 32px;
  }

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

  .page-faq .faq-item__a {
    padding: 0 28px 20px 54px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 116px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
    padding: 15px 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 48px;
    padding-top: 60px;
    padding-bottom: 52px;
  }

  .page-faq .faq-hero__title {
    font-size: var(--fs-44);
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: 52px;
    padding-top: 44px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-block {
    padding-bottom: 48px;
  }

  .page-faq .faq-block + .faq-block {
    padding-top: 44px;
  }

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

@media (min-width: 1080px) {
  .page-faq .faq-hero__title {
    font-size: var(--fs-64);
    line-height: 1.18;
  }
}

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

  .page-faq .faq-item,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-rail__link {
    transition: none;
  }
}