.page-faq {
  --faq-radius: 26px;
  --faq-radius-sm: 18px;
  --faq-pad: clamp(18px, 3.4vw, 30px);
  display: block;
}

/* ---------- 顶部窄框景 ---------- */
.page-faq .faq-banner {
  padding-top: clamp(14px, 2.4vw, 26px);
}

.page-faq .faq-banner__frame {
  position: relative;
  margin: 0;
  border-radius: var(--faq-radius);
  border: 1px solid var(--mel-line);
  overflow: hidden;
  background: var(--mel-card);
}

.page-faq .faq-banner__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    var(--mel-cyan) 0 1px,
    transparent 1px 58px
  );
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 38%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 38%);
}

.page-faq .faq-banner__frame .mel-media__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-faq .faq-banner__frame .mel-media__cap {
  position: absolute;
  left: 18px;
  bottom: 14px;
  z-index: 2;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero__grid {
  align-items: end;
  row-gap: 26px;
}

.page-faq .faq-hero__lead .mel-index {
  margin-bottom: 12px;
}

.page-faq .faq-hero__lead .mel-display {
  margin: 0 0 18px;
}

.page-faq .faq-hero__lead .mel-lede {
  max-width: 36em;
  margin: 0;
  color: rgba(244, 247, 255, 0.78);
}

.page-faq .faq-hero__aside {
  padding: 20px 22px;
  border-radius: var(--faq-radius-sm);
  border: 1px solid var(--mel-line);
  background: linear-gradient(150deg, rgba(36, 26, 85, 0.72), rgba(11, 18, 51, 0.4));
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-quick__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--mel-line);
}

.page-faq .faq-quick__item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-faq .faq-quick__num {
  font-size: 30px;
  line-height: 1;
  color: var(--mel-amber);
  letter-spacing: 0.04em;
}

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

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding-top: clamp(34px, 5vw, 64px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-faq .faq-body__grid {
  row-gap: 30px;
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__head {
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--mel-line);
  background: rgba(21, 30, 69, 0.5);
  color: var(--mel-muted);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.22s var(--mel-ease), border-color 0.22s var(--mel-ease),
    background-color 0.22s var(--mel-ease), transform 0.22s var(--mel-ease);
}

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

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--mel-paper);
  border-color: rgba(53, 224, 224, 0.6);
  background: rgba(53, 224, 224, 0.1);
  transform: translateY(-3px);
}

.page-faq .faq-index__foot {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mel-muted);
}

/* ---------- 答案分组 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(30px, 4.4vw, 58px);
}

.page-faq .faq-block {
  padding: var(--faq-pad);
  border-radius: var(--faq-radius);
  border: 1px solid var(--mel-line);
  background: var(--mel-card);
  scroll-margin-top: 96px;
}

.page-faq .faq-block--hot {
  background: linear-gradient(165deg, rgba(36, 26, 85, 0.9), rgba(21, 30, 69, 0.92));
}

.page-faq .faq-block--cities {
  background: linear-gradient(165deg, #0E3B3E, #0B1233 78%);
  border-color: rgba(53, 224, 224, 0.28);
}

.page-faq .faq-block--cycle {
  background: linear-gradient(165deg, #4A1230, #0B1233 76%);
  border-color: rgba(255, 62, 165, 0.28);
}

.page-faq .faq-block--signup {
  background: linear-gradient(165deg, #241A55, #0B1233 74%);
  border-color: rgba(255, 194, 75, 0.24);
}

.page-faq .faq-block--help {
  background: linear-gradient(165deg, rgba(255, 106, 26, 0.16), rgba(21, 30, 69, 0.94) 60%);
  border-color: rgba(255, 106, 26, 0.42);
}

.page-faq .faq-block__head {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--mel-line);
}

.page-faq .faq-block__head .mel-index {
  margin: 0 0 10px;
}

.page-faq .faq-block__title {
  margin: 0 0 10px;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--mel-paper);
}

.page-faq .faq-block__sub {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 247, 255, 0.7);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-list--tight + .faq-list--tight {
  margin-top: 10px;
}

.page-faq .faq-item {
  border-radius: var(--faq-radius-sm);
  border: 1px solid var(--mel-line);
  background: rgba(11, 18, 51, 0.44);
  overflow: hidden;
  transition: border-color 0.22s var(--mel-ease), background-color 0.22s var(--mel-ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(53, 224, 224, 0.42);
}

.page-faq .faq-item[open] {
  border-color: rgba(53, 224, 224, 0.62);
  background: rgba(11, 18, 51, 0.66);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--mel-paper);
  font-size: 16px;
  line-height: 1.55;
  transition: transform 0.22s var(--mel-ease);
}

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

.page-faq .faq-item__q:hover {
  transform: translateX(4px);
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mel-amber);
  padding-top: 3px;
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--mel-cyan);
  transition: transform 0.22s var(--mel-ease), opacity 0.22s var(--mel-ease);
}

.page-faq .faq-item__sign::before {
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__sign::after {
  width: 2px;
  height: 14px;
}

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

.page-faq .faq-item__a {
  padding: 0 18px 18px 52px;
  border-top: 1px dashed var(--mel-line);
  margin-top: 0;
  padding-top: 14px;
  color: rgba(244, 247, 255, 0.82);
  font-size: 15px;
  line-height: 1.78;
}

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

.page-faq .faq-item__a strong {
  font-weight: 600;
}

/* ---------- 覆盖对照条 ---------- */
.page-faq .faq-cities__visual {
  display: grid;
  gap: 20px;
  margin-bottom: 22px;
}

.page-faq .faq-scale {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-scale__row {
  display: grid;
  grid-template-columns: auto auto auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(11, 18, 51, 0.34);
  border: 1px solid var(--mel-line);
}

.page-faq .faq-scale__tag {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(53, 224, 224, 0.14);
  color: var(--mel-cyan);
  white-space: nowrap;
}

.page-faq .faq-scale__num {
  font-size: 24px;
  line-height: 1;
  color: var(--mel-paper);
  letter-spacing: 0.04em;
}

.page-faq .faq-scale__unit {
  font-size: 12px;
  color: var(--mel-muted);
  white-space: nowrap;
}

.page-faq .faq-scale__bar {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mel-cyan), rgba(53, 224, 224, 0.05));
  min-width: 24px;
}

.page-faq .faq-scale__bar--wide {
  background: linear-gradient(90deg, var(--mel-orange), rgba(255, 106, 26, 0.06));
}

.page-faq .faq-cities__figure {
  margin: 0;
  border-radius: var(--faq-radius-sm);
  overflow: hidden;
  border: 1px solid var(--mel-line);
}

.page-faq .faq-cities__figure .mel-media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 年度复核清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-checklist__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no label"
    "no desc";
  align-items: center;
  gap: 2px 12px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 62, 165, 0.28);
  background: rgba(11, 18, 51, 0.4);
}

.page-faq .faq-checklist__no {
  grid-area: no;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 62, 165, 0.16);
  color: var(--mel-magenta);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-faq .faq-checklist__label {
  grid-area: label;
  font-size: 15px;
  color: var(--mel-paper);
}

.page-faq .faq-checklist__desc {
  grid-area: desc;
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(244, 247, 255, 0.66);
}

/* ---------- 卡点列表 ---------- */
.page-faq .faq-pitfalls {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: pitfall;
}

.page-faq .faq-pitfalls__item {
  position: relative;
  padding: 16px 18px 16px 20px;
  border-radius: var(--faq-radius-sm);
  border: 1px solid var(--mel-line);
  background: rgba(11, 18, 51, 0.44);
  border-left: 3px solid var(--mel-amber);
  transition: transform 0.22s var(--mel-ease), border-color 0.22s var(--mel-ease);
}

.page-faq .faq-pitfalls__item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 194, 75, 0.6);
}

.page-faq .faq-pitfalls__stage {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 62, 165, 0.16);
  color: var(--mel-magenta);
  margin-bottom: 8px;
}

.page-faq .faq-pitfalls__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--mel-paper);
}

.page-faq .faq-pitfalls__fix {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 247, 255, 0.7);
}

.page-faq .faq-pitfalls__k {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mel-amber);
}

.page-faq .faq-signup__note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-radius: 14px;
  border-left: 3px solid var(--mel-orange);
  background: rgba(255, 106, 26, 0.09);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 247, 255, 0.78);
}

/* ---------- 联系区 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--mel-line);
  background: rgba(11, 18, 51, 0.44);
}

.page-faq .faq-contact__label {
  flex: 0 0 auto;
}

.page-faq .faq-contact__value {
  font-size: 15px;
  letter-spacing: 0.03em;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(244, 247, 255, 0.66);
}

.page-faq .faq-contact__links {
  margin-bottom: 16px;
}

.page-faq .faq-help__tail {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mel-muted);
}

.page-faq .faq-help__tail a {
  color: var(--mel-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 224, 224, 0.5);
}

.page-faq .faq-help__tail a:hover {
  color: var(--mel-amber);
  border-bottom-color: rgba(255, 194, 75, 0.6);
}

/* ---------- ≥760px ---------- */
@media (min-width: 760px) {
  .page-faq .faq-cities__visual {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

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

  .page-faq .faq-item__a {
    padding-left: 62px;
  }

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

  .page-faq .faq-contact__note {
    grid-column: 1 / -1;
  }
}

/* ---------- ≥1000px ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-faq .faq-index__list > li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    border-radius: 0 14px 14px 0;
    border-color: transparent;
    border-left: 2px solid transparent;
    background: transparent;
    padding: 11px 14px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--mel-cyan);
    border-color: transparent;
    border-left-color: var(--mel-cyan);
    background: rgba(53, 224, 224, 0.08);
    transform: translateX(4px);
  }

  .page-faq .faq-hero__aside {
    margin-left: auto;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after,
  .page-faq .faq-pitfalls__item {
    transition: none;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-item__q:hover,
  .page-faq .faq-pitfalls__item:hover {
    transform: none;
  }
}