/* ================= 常见问题页 ================= */
.page-faq {
  --faq-block-pad: clamp(44px, 6vw, 76px);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(60px, 9vw, 120px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--bar) + clamp(34px, 7vw, 84px)) 0 clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__beam,
.page-faq .faq-hero__beam--lime {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero__beam {
  top: -20%;
  right: -26%;
  width: 66%;
  height: 145%;
  background: linear-gradient(180deg, rgba(255, 90, 31, 0.30), rgba(255, 90, 31, 0) 72%);
  transform: skewX(var(--skew-hard));
}

.page-faq .faq-hero__beam--lime {
  left: -24%;
  bottom: -34%;
  width: 42%;
  height: 92%;
  background: linear-gradient(0deg, rgba(200, 255, 61, 0.16), rgba(200, 255, 61, 0) 78%);
  transform: skewX(var(--skew-alt));
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 10.5vw, 100px);
  line-height: 0.94;
  letter-spacing: -0.015em;
}

.page-faq .faq-hero__line {
  display: block;
}

.page-faq .faq-hero__line--accent {
  color: var(--orange);
  text-shadow: 4px 4px 0 var(--orange-deep);
}

.page-faq .faq-hero__lead {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 54ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-block;
  padding: 10px 18px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  transform: skewX(var(--skew));
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.page-faq .faq-jump__link > span {
  display: inline-block;
  transform: skewX(var(--skew-alt));
}

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

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: var(--faq-block-pad) 0;
  scroll-margin-top: calc(var(--bar) + 24px);
}

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

.page-faq .faq-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-faq .faq-block__side {
  position: relative;
}

.page-faq .faq-block__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(23px, 4.6vw, 32px);
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-block__note {
  margin: 10px 0 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.75;
}

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

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

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  position: relative;
  display: block;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  box-shadow: var(--shadow-card);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-left-color 0.18s ease;
}

.page-faq .qa + .qa {
  margin-top: 14px;
}

.page-faq .qa:hover,
.page-faq .qa:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.page-faq .qa[open] {
  border-left-color: var(--lime);
}

.page-faq .qa__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .qa__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .qa__q {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--white);
}

.page-faq .qa__arrow {
  margin-top: 3px;
  color: var(--mist);
  transition: transform 0.22s ease, color 0.22s ease;
}

.page-faq .qa__arrow svg {
  display: block;
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(180deg);
  color: var(--lime);
}

.page-faq .qa__body {
  padding: 0 18px 18px;
  border-top: 1px solid transparent;
}

.page-faq .qa__body p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .qa[open] .qa__body {
  border-top-color: var(--line);
  padding-top: 14px;
}

.page-faq .faq-link {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  color: var(--orange);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

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

.page-faq .faq-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 结尾引导 ---------- */
.page-faq .faq-end__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 52px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-end__beam {
  position: absolute;
  top: -40%;
  right: -14%;
  width: 46%;
  height: 180%;
  background: var(--orange);
  opacity: 0.18;
  transform: skewX(var(--skew-hard));
  pointer-events: none;
}

.page-faq .faq-end__kicker {
  position: relative;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-faq .faq-end__title {
  position: relative;
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-faq .faq-end__text {
  position: relative;
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-end__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 768px) {
  .page-faq .qa__head {
    padding: 18px 20px;
  }

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

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

  .page-faq .faq-figure {
    margin-top: 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-block__grid {
    grid-template-columns: minmax(210px, 280px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-faq .faq-block__side {
    position: sticky;
    top: calc(var(--bar) + 28px);
    align-self: start;
  }

  .page-faq .faq-list > .qa:nth-child(even) {
    margin-left: 36px;
  }

  .page-faq .qa + .qa {
    margin-top: 16px;
  }

  .page-faq .qa__head {
    padding: 20px 22px;
  }

  .page-faq .qa__body {
    padding: 0 22px 22px;
  }

  .page-faq .qa__q {
    font-size: 17.5px;
  }

  .page-faq .faq-figure {
    margin-left: 36px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-list > .qa:nth-child(even) {
    margin-left: 52px;
  }

  .page-faq .faq-figure {
    margin-left: 52px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__arrow,
  .page-faq .faq-jump__link {
    transition: none;
  }

  .page-faq .qa:hover,
  .page-faq .qa:focus-within {
    transform: none;
  }
}