.page-faq {
  --faq-gap-x: clamp(20px, 3vw, 44px);
  --faq-ease: var(--sc-ease);
  color: var(--sc-text);
  font-family: var(--sc-font-body);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--sc-muted);
}

.page-faq .faq-crumbs a {
  color: var(--sc-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--sc-t) var(--faq-ease), border-color var(--sc-t) var(--faq-ease);
}

.page-faq .faq-crumbs a:hover {
  color: var(--sc-cyan);
  border-bottom-color: var(--sc-cyan);
}

.page-faq .faq-crumbs__sep {
  color: var(--sc-line);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(79, 227, 193, 0.11), transparent 62%),
    var(--sc-night);
  border-bottom: 1px solid var(--sc-line);
}

.page-faq .faq-hero__inner {
  padding-block: clamp(26px, 4vw, 48px) clamp(36px, 6vw, 76px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(22px, 4vw, 44px);
}

.page-faq .faq-hero__text {
  border-left: 1px solid var(--sc-line);
  padding-left: clamp(16px, 2.4vw, 30px);
}

.page-faq .faq-hero__eyebrow {
  color: var(--sc-cyan);
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  margin: 0 0 18px;
  font-family: var(--sc-font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.14;
  font-size: clamp(30px, 4.4vw, 54px);
  color: var(--sc-chalk);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.3vw, 17.5px);
  line-height: 1.85;
  color: var(--sc-text);
}

.page-faq .faq-hero__hint {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--sc-line);
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sc-muted);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img,
.page-faq .faq-entry__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--sc-line);
  object-fit: cover;
}

.page-faq .faq-hero__figure figcaption,
.page-faq .faq-entry__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sc-muted);
}

/* ---------- 通用章节节奏 ---------- */
.page-faq .faq-ask,
.page-faq .faq-glossary {
  background: var(--sc-turf);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-faq .faq-entry {
  background: var(--sc-blue);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-faq .faq-contact {
  background: linear-gradient(180deg, var(--sc-night) 0%, var(--sc-turf) 100%);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-faq .faq-ask__head,
.page-faq .faq-glossary__head,
.page-faq .faq-contact__head {
  max-width: 68ch;
}

.page-faq .faq-ask__head .sc-eyebrow,
.page-faq .faq-glossary__head .sc-eyebrow,
.page-faq .faq-contact__head .sc-eyebrow,
.page-faq .faq-entry__text .sc-eyebrow {
  color: var(--sc-cyan);
  margin: 0 0 12px;
}

.page-faq .faq-ask__head h2,
.page-faq .faq-glossary__head h2,
.page-faq .faq-contact__head h2,
.page-faq .faq-entry__text h2 {
  margin: 0 0 14px;
  font-family: var(--sc-font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-size: clamp(23px, 3vw, 36px);
  color: var(--sc-chalk);
}

.page-faq .faq-ask__intro,
.page-faq .faq-glossary__intro,
.page-faq .faq-contact__intro {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--sc-muted);
}

/* ---------- 问答切换 ---------- */
.page-faq .faq-switch {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

/* 索引列 */
.page-faq .faq-index {
  display: grid;
  align-content: start;
  gap: 2px;
  border-top: 1px solid var(--sc-line);
}

.page-faq .faq-index__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 14px 15px 16px;
  border-left: 3px solid transparent;
  border-bottom: 1px solid var(--sc-line);
  cursor: pointer;
  color: var(--sc-muted);
  transition: color var(--sc-t) var(--faq-ease),
    background-color var(--sc-t) var(--faq-ease),
    border-color var(--sc-t) var(--faq-ease);
}

.page-faq .faq-index__item:hover {
  color: var(--sc-text);
  background: rgba(79, 227, 193, 0.05);
}

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--sc-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--sc-line);
  transition: color var(--sc-t) var(--faq-ease);
}

.page-faq .faq-index__label {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .faq-index__count {
  flex: none;
  font-family: var(--sc-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sc-muted);
}

/* 选中态 */
.page-faq #faq-g1:checked ~ .faq-index [for="faq-g1"],
.page-faq #faq-g2:checked ~ .faq-index [for="faq-g2"],
.page-faq #faq-g3:checked ~ .faq-index [for="faq-g3"],
.page-faq #faq-g4:checked ~ .faq-index [for="faq-g4"] {
  border-left-color: var(--sc-cyan);
  background: rgba(79, 227, 193, 0.08);
  color: var(--sc-text);
}

.page-faq #faq-g1:checked ~ .faq-index [for="faq-g1"] .faq-index__num,
.page-faq #faq-g2:checked ~ .faq-index [for="faq-g2"] .faq-index__num,
.page-faq #faq-g3:checked ~ .faq-index [for="faq-g3"] .faq-index__num,
.page-faq #faq-g4:checked ~ .faq-index [for="faq-g4"] .faq-index__num {
  color: var(--sc-cyan);
}

/* 面板区：堆叠定位，切换时位置不跳 */
.page-faq .faq-panels {
  display: grid;
  min-width: 0;
}

.page-faq .faq-panel {
  grid-area: 1 / 1;
  min-width: 0;
  padding: clamp(18px, 3vw, 34px);
  background: var(--sc-stand);
  border: 1px solid var(--sc-line);
  border-top: 2px solid var(--sc-line);
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--sc-t) var(--faq-ease), visibility var(--sc-t) var(--faq-ease);
}

.page-faq #faq-g1:checked ~ .faq-panels .faq-panel--1,
.page-faq #faq-g2:checked ~ .faq-panels .faq-panel--2,
.page-faq #faq-g3:checked ~ .faq-panels .faq-panel--3,
.page-faq #faq-g4:checked ~ .faq-panels .faq-panel--4 {
  visibility: visible;
  opacity: 1;
  border-top-color: var(--sc-cyan);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--sc-line);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(15.5px, 1.5vw, 17px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--sc-text);
  transition: color var(--sc-t) var(--faq-ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::before {
  content: "+";
  flex: none;
  width: 16px;
  font-family: var(--sc-font-mono);
  font-size: 17px;
  line-height: 1.5;
  color: var(--sc-cyan);
}

.page-faq .faq-item[open] > .faq-item__q::before {
  content: "-";
}

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

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

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--sc-muted);
}

.page-faq .faq-item__rel {
  margin: 0;
  padding: 6px 0 6px 12px;
  border-left: 2px solid var(--sc-line);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--sc-muted);
}

.page-faq .faq-item__rel a {
  color: var(--sc-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 193, 0.4);
  transition: border-color var(--sc-t) var(--faq-ease);
}

.page-faq .faq-item__rel a:hover {
  border-bottom-color: var(--sc-cyan);
}

/* ---------- 当季说明入口 ---------- */
.page-faq .faq-entry__grid {
  display: grid;
  gap: clamp(28px, 4vw, 60px);
}

.page-faq .faq-entry__para {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--sc-text);
}

.page-faq .faq-entry__list {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--sc-line);
}

.page-faq .faq-entry__list li {
  position: relative;
  padding: 14px 0 14px 24px;
  border-bottom: 1px solid var(--sc-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--sc-muted);
}

.page-faq .faq-entry__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 25px;
  width: 11px;
  height: 1px;
  background: var(--sc-cyan);
}

.page-faq .faq-entry__figure {
  margin: 0;
}

/* ---------- 术语小词典 ---------- */
.page-faq .faq-glossary__list {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border-top: 1px solid var(--sc-line);
}

.page-faq .faq-glossary__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--sc-line);
}

.page-faq .faq-glossary__row dt {
  font-family: var(--sc-font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--sc-cyan);
}

.page-faq .faq-glossary__row dd {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--sc-muted);
}

/* ---------- 联系与反馈 ---------- */
.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-channel {
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--sc-stand);
  border: 1px solid var(--sc-line);
  border-top: 2px solid var(--sc-line);
}

.page-faq .faq-channel--mail {
  border-top-color: var(--sc-cyan);
}

.page-faq .faq-channel--phone {
  border-top-color: var(--sc-ember);
}

.page-faq .faq-channel__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sc-muted);
}

.page-faq .faq-channel__value {
  display: block;
  margin: 12px 0 10px;
  font-family: var(--sc-font-mono);
  font-size: clamp(14.5px, 1.5vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--sc-chalk);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .faq-channel__value--link a {
  color: var(--sc-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 193, 0.45);
}

.page-faq .faq-channel__value--link a:hover {
  border-bottom-color: var(--sc-cyan);
}

.page-faq .faq-channel__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--sc-muted);
}

.page-faq .faq-contact__note {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--sc-line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--sc-muted);
}

.page-faq .faq-contact__note a {
  color: var(--sc-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 193, 0.4);
}

.page-faq .faq-contact__note a:hover {
  border-bottom-color: var(--sc-cyan);
}

/* ---------- 焦点可见 ---------- */
.page-faq .faq-index__item:focus-visible {
  outline: 2px solid var(--sc-cyan);
  outline-offset: 2px;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-glossary__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 44px);
    align-items: baseline;
    padding: 20px 0;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-switch {
    grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
    gap: clamp(28px, 3.4vw, 48px);
    align-items: start;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-faq .faq-hero__figure {
    transform: translateY(22px);
  }

  .page-faq .faq-entry__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: clamp(32px, 4.6vw, 72px);
  }

  .page-faq .faq-glossary__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 64px);
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-panel,
  .page-faq .faq-index__item,
  .page-faq .faq-item__q {
    transition: none;
  }
}