.page-faq {
  --faq-glow: radial-gradient(120% 90% at 10% 0%, rgba(200, 255, 67, 0.16), transparent 58%);
  --faq-amber-glow: radial-gradient(90% 70% at 94% 6%, rgba(255, 176, 46, 0.13), transparent 62%);
  background: var(--ink);
  color: var(--body-text);
  padding-bottom: clamp(44px, 7vw, 92px);
  overflow-x: hidden;
  font-family: var(--font-body);
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 5vw, 60px) 0 clamp(30px, 5vw, 58px);
  background-image: var(--faq-glow), var(--faq-amber-glow);
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 32px);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-faq .breadcrumbs a {
  color: var(--steel);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--lime);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7vw, 74px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .faq-hero__intro {
  max-width: 52ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tag-quiet {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--steel);
}

.page-faq .faq-hero__media .media-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--tunnel);
}

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

/* ---------- 快速定位条 ---------- */
.page-faq .faq-finder {
  padding: clamp(16px, 3vw, 26px) 0;
  background: var(--tunnel);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-finder__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-finder__title {
  flex: 0 0 auto;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-finder__search {
  flex: 1 1 200px;
  min-width: 0;
}

.page-faq .faq-finder__input {
  width: 100%;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 14px;
}

.page-faq .faq-finder__input::placeholder {
  color: var(--steel);
}

.page-faq .faq-finder__input:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
  border-color: var(--lime);
}

.page-faq .faq-finder__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  color: var(--steel);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  outline: none;
}

/* ---------- 章节标题 ---------- */
.page-faq .faq-section-head {
  max-width: 60ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-section-head h2 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .faq-section-head__sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 三步自查 ---------- */
.page-faq .faq-steps__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), rgba(200, 255, 67, 0) 72%);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 14px;
  font-size: clamp(34px, 5vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--lime);
}

.page-faq .faq-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--chalk);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--body-text);
}

/* ---------- 索引 + 答案 ---------- */
.page-faq .faq-board__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
  list-style: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  color: var(--steel);
  font-size: 13.5px;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--chalk);
  border-color: var(--lime);
  outline: none;
}

.page-faq .faq-index__num {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--steel);
}

.page-faq .faq-answers {
  display: grid;
  gap: clamp(28px, 3.4vw, 44px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
  min-width: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-faq .faq-group__num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .faq-item[open] {
  background: var(--tunnel);
  box-shadow: inset 3px 0 0 var(--lime);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--chalk);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "—";
}

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

.page-faq .faq-item__a {
  padding: 0 18px 18px;
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__a a {
  color: var(--chalk);
  text-decoration: underline;
  text-decoration-color: var(--lime);
  text-underline-offset: 3px;
}

.page-faq .faq-figure {
  max-width: 300px;
  margin: 16px 0 4px;
}

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

/* ---------- 联系卡 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 2px;
  margin-top: 14px;
  padding: 18px 20px 22px;
  background: var(--tunnel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(43, 76, 66, 0.95);
}

.page-faq .faq-contact__row:last-of-type {
  border-bottom: none;
}

.page-faq .faq-contact__key {
  flex: 0 0 78px;
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-contact__val {
  flex: 1 1 190px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--chalk);
  word-break: break-word;
}

.page-faq .faq-contact .btn {
  justify-self: start;
  margin-top: 16px;
}

.page-faq .faq-tail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-tail a {
  color: var(--chalk);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

.page-faq .faq-tail a:hover,
.page-faq .faq-tail a:focus-visible {
  text-decoration-color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-figure {
    float: right;
    max-width: 260px;
    margin: 4px 0 12px 22px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-board__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    padding-right: 8px;
    border-right: 1px solid var(--line);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 4px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-left: 2px solid transparent;
    border-radius: var(--r-md);
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    background: var(--tunnel);
    border-left-color: var(--lime);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-index__link {
    transition: none;
  }
}