.page-faq {
  --faq-accent: var(--fluoro);
  --faq-num-w: 2.4rem;
  --faq-block: clamp(44px, 8vw, 88px);
  padding-bottom: clamp(60px, 10vw, 120px);
}

.page-faq .breadcrumbs {
  padding: clamp(18px, 3vw, 28px) 0 0;
}

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

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

.page-faq .breadcrumbs__current {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(30px, 6vw, 66px) 0 clamp(28px, 5vw, 46px);
}

.page-faq .faq-hero__kicker {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gray);
  margin: 0 0 20px;
  text-transform: uppercase;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(38px, 9.5vw, 88px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--mist);
  margin: 0;
  max-width: 15ch;
}

.page-faq .faq-hero__lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--mist);
  opacity: 0.84;
  margin: 0 0 24px;
  max-width: 40ch;
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}

.page-faq .faq-hero__meta li {
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--gray);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__meta .mono {
  font-size: 22px;
  font-weight: 700;
  color: var(--fluoro);
  letter-spacing: -0.01em;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
  }
}

/* ---------- 横幅信息图 ---------- */

.page-faq .faq-banner {
  margin: 0 0 clamp(34px, 6vw, 62px);
  position: relative;
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
}

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

/* ---------- 分组跳转 ---------- */

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(38px, 7vw, 72px);
}

.page-faq .faq-jump__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 9px 15px;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--fluoro);
  border-color: var(--fluoro);
  color: var(--ink);
}

/* ---------- 章节骨架 ---------- */

.page-faq .faq-section {
  margin-bottom: var(--faq-block);
  scroll-margin-top: 110px;
}

.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px 18px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
  margin-bottom: 6px;
}

.page-faq .faq-section__index {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--faq-accent);
  padding-top: 4px;
}

.page-faq .faq-section__title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--mist);
  margin: 0;
}

.page-faq .faq-section--update {
  --faq-accent: var(--blue);
}

.page-faq .faq-section--cards {
  --faq-accent: var(--amber);
}

.page-faq .faq-section--mobile {
  --faq-accent: var(--fluoro);
}

.page-faq .faq-section--alerts {
  --faq-accent: var(--blue);
}

.page-faq .faq-section--feedback {
  --faq-accent: var(--red);
}

/* ---------- 手风琴 ---------- */

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

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: var(--faq-num-w) minmax(0, 1fr) auto;
  align-items: start;
  gap: 0 14px;
  padding: clamp(20px, 2.6vw, 26px) 0;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.25s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  background: rgba(198, 240, 74, 0.05);
}

.page-faq .faq-item__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray);
  padding-top: 4px;
  transition: color 0.25s var(--ease);
}

.page-faq .faq-item > summary:hover .faq-item__num,
.page-faq .faq-item[open] .faq-item__num {
  color: var(--fluoro);
}

.page-faq .faq-item__q {
  font-family: var(--font-title);
  font-size: clamp(16.5px, 2.1vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--mist);
  transition: color 0.25s var(--ease);
}

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

.page-faq .faq-item__mark {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 6px;
  justify-self: end;
  flex: none;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  background: var(--gray);
  transition: transform 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-faq .faq-item__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

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

.page-faq .faq-item[open] .faq-item__mark::before {
  background: var(--fluoro);
}

.page-faq .faq-item__answer {
  margin: 0 0 clamp(22px, 3vw, 30px) calc(var(--faq-num-w) + 14px);
  border-left: 3px solid var(--faq-accent);
  padding: 2px 0 2px 18px;
}

.page-faq .faq-item__answer p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.82;
  max-width: 62ch;
}

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

/* ---------- 字段说明表 ---------- */

.page-faq .faq-fields {
  margin: 26px 0 8px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--amber);
  background: var(--panel);
}

.page-faq .faq-fields__row {
  display: grid;
  gap: 6px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-faq .faq-fields__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-faq .faq-fields__val {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 0.8;
}

@media (min-width: 700px) {
  .page-faq .faq-fields__row {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: baseline;
    gap: 22px;
  }
}

/* ---------- 小屏阅读：图文错位 ---------- */

.page-faq .faq-mobile-grid {
  display: grid;
  gap: clamp(26px, 4vw, 42px);
  margin-top: 14px;
}

.page-faq .faq-mobile-grid__media {
  margin: 0;
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

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

.page-faq .faq-mobile-grid__media figcaption {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--gray);
  padding: 14px 18px 18px;
  border-left: 3px solid var(--fluoro);
  margin: 0 18px 18px;
}

@media (min-width: 960px) {
  .page-faq .faq-mobile-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

/* ---------- 邮箱复制 ---------- */

.page-faq .faq-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 16px;
}

.page-faq .faq-copy__mail {
  font-size: 13.5px;
  color: var(--blue);
  word-break: break-all;
}

.page-faq .faq-copy .copy-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line-strong);
  padding: 7px 14px;
  cursor: pointer;
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-copy .copy-btn:hover,
.page-faq .faq-copy .copy-btn:focus-visible {
  background: var(--fluoro);
  border-color: var(--fluoro);
  color: var(--ink);
}

.page-faq .faq-copy .copy-btn[data-copied="true"] {
  background: var(--fluoro);
  border-color: var(--fluoro);
  color: var(--ink);
}

/* ---------- 收束区 ---------- */

.page-faq .faq-outro {
  position: relative;
  margin-top: clamp(20px, 4vw, 40px);
  padding: clamp(28px, 4.5vw, 52px);
  background: linear-gradient(225deg, transparent 30px, var(--panel) 30px);
}

.page-faq .faq-outro::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 3px;
  background: var(--fluoro);
}

.page-faq .faq-outro__title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--mist);
  margin: 0 0 18px;
}

.page-faq .faq-outro__text {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.82;
  margin: 0 0 28px;
  max-width: 56ch;
}

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

/* ---------- 滚动显现 ---------- */

.page-faq [data-reveal] {
  opacity: 1;
}

.page-faq.has-js .page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.page-faq.has-js .page-faq [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq.has-js .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 窄屏收紧 ---------- */

@media (max-width: 560px) {
  .page-faq {
    --faq-num-w: 1.9rem;
  }

  .page-faq .faq-item > summary {
    gap: 0 10px;
  }

  .page-faq .faq-item__answer {
    padding-left: 14px;
  }

  .page-faq .faq-outro {
    background: var(--panel);
  }

  .page-faq .faq-outro__actions .btn {
    width: 100%;
    text-align: center;
  }
}