.page-faq {
  --faq-radius: var(--radius-l);
  --faq-pad: 22px;
  background:
    radial-gradient(120% 55% at 88% -8%, rgba(21, 122, 78, 0.38), transparent 62%),
    radial-gradient(80% 42% at 0% 12%, rgba(47, 217, 232, 0.1), transparent 60%),
    var(--ink-void);
  color: var(--mist);
  padding-bottom: 64px;
  overflow-x: clip;
}

.page-faq a {
  color: inherit;
}

/* 面包屑 */
.page-faq .faq-crumbs {
  padding: 16px 0 4px;
}

.page-faq .faq-crumbs .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-crumbs .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .faq-crumbs .breadcrumbs__link {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .faq-crumbs .breadcrumbs__link:hover {
  color: var(--cyan);
}

.page-faq .faq-crumbs .breadcrumbs__item span[aria-current] {
  color: var(--cream);
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 10px 0 8px;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: center;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-hero__lede {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--green-deep);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(16, 36, 28, 0.12), rgba(10, 19, 16, 0.6));
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* 章节目录 */
.page-faq .faq-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(16, 36, 28, 0.72);
  color: var(--mist);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-toc__link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-toc__link[aria-current="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-void);
}

/* 筛选 */
.page-faq .faq-filter {
  margin-top: 34px;
}

.page-faq .faq-filter__label {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .faq-filter .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 章节面板 */
.page-faq .faq-block {
  margin-top: 28px;
}

.page-faq .faq-block__frame {
  padding: var(--faq-pad);
  border-radius: var(--faq-radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 36, 28, 0.96), rgba(10, 19, 16, 0.96));
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  align-items: start;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block__index {
  grid-row: span 2;
  padding: 7px 12px;
  border-radius: var(--radius-s);
  background: var(--green-track);
  color: var(--ink-void);
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 26px;
  line-height: 1;
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 4.8vw, 32px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .faq-block__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* 问答折叠 */
.page-faq .qa {
  margin-bottom: 10px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line-soft);
  background: rgba(10, 19, 16, 0.6);
  overflow: hidden;
}

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

.page-faq .qa[open] {
  border-color: rgba(47, 217, 232, 0.42);
  background: rgba(16, 36, 28, 0.9);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
  min-height: 44px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__mark {
  margin-top: 3px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--amber);
  font-family: var(--font-num);
  font-size: 12px;
  line-height: 1;
}

.page-faq .qa__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.48;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-faq .qa__sign {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 5px;
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 1px;
  right: 1px;
  top: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform 0.25s var(--ease);
}

.page-faq .qa__sign::after {
  transform: rotate(90deg);
}

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

.page-faq .qa__answer {
  padding: 0 16px 16px;
}

.page-faq .qa__answer p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-faq .qa__answer a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 术语表（奶油面板） */
.page-faq .faq-block--cream .faq-block__frame {
  background: var(--cream);
  border-color: var(--cream-shade);
  color: var(--brown-ink);
}

.page-faq .faq-block--cream .faq-block__head {
  border-bottom-color: var(--cream-shade);
}

.page-faq .faq-block--cream .faq-block__index {
  background: var(--brown-ink);
  color: var(--cream);
}

.page-faq .faq-block--cream .faq-block__title {
  color: var(--brown-ink);
}

.page-faq .faq-block--cream .faq-block__note {
  color: rgba(36, 28, 23, 0.76);
}

.page-faq .faq-terms {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-terms__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
}

.page-faq .term {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--radius-m);
  border: 1px solid var(--cream-shade);
  background: rgba(226, 216, 194, 0.55);
}

.page-faq .term__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--brown-ink);
}

.page-faq .term__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(36, 28, 23, 0.82);
}

.page-faq .faq-terms__media {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--cream-shade);
  background: var(--green-deep);
}

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

/* 联系方式收束块 */
.page-faq .faq-help .faq-block__frame {
  background:
    linear-gradient(150deg, rgba(255, 90, 31, 0.18), rgba(16, 36, 28, 0.97) 46%),
    var(--green-deep);
  border-color: rgba(255, 90, 31, 0.42);
}

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

.page-faq .faq-help__item {
  padding: 14px 16px;
  border-radius: var(--radius-m);
  border: 1px solid var(--line);
  background: rgba(10, 19, 16, 0.62);
}

.page-faq .faq-help__label {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-help__value {
  display: inline-block;
  font-size: 16px;
  line-height: 1.5;
  color: var(--cream);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-faq .faq-help__value:hover {
  color: var(--cyan);
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

/* 桌面端 */
@media (min-width: 900px) {
  .page-faq {
    --faq-pad: 32px;
  }

  .page-faq .faq-hero {
    padding: 18px 0 10px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 38px;
  }

  .page-faq .faq-toc {
    margin-top: 34px;
  }

  .page-faq .faq-block {
    margin-top: 36px;
  }

  .page-faq .qa__summary {
    padding: 16px 20px;
  }

  .page-faq .qa__title {
    font-size: 17px;
  }

  .page-faq .qa__answer {
    padding: 0 20px 20px 58px;
  }

  .page-faq .faq-terms {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: 26px;
    align-items: start;
  }

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

  .page-faq .faq-help__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block:nth-of-type(odd) .faq-block__frame {
    margin-inline-end: 5%;
  }

  .page-faq .faq-block:nth-of-type(even) .faq-block__frame {
    margin-inline-start: 5%;
  }

  .page-faq .faq-filter .chip-row {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-toc__link {
    transition: none;
  }
}