.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 28px);
  --faq-c: var(--edge);
  color: var(--ink);
  padding-bottom: clamp(56px, 9vw, 110px);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 56px) 0 clamp(20px, 3.2vw, 40px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -14% -8% auto -8%;
  height: 82%;
  background:
    radial-gradient(58% 88% at 10% 0%, rgba(61, 240, 208, 0.14), transparent 70%),
    radial-gradient(48% 78% at 88% 12%, rgba(255, 106, 44, 0.12), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 4.6vw, 3rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--c-chalk);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  letter-spacing: 0.01em;
  color: var(--dim);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-jump__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: rgba(19, 31, 58, 0.62);
  color: var(--ink);
  font-size: 0.875rem;
  text-decoration: none;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--accent);
  background: rgba(61, 240, 208, 0.1);
  color: var(--accent);
}

.page-faq .faq-jump__num {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--c-lime);
}

/* ---------- 两栏骨架 ---------- */
.page-faq .faq-layout {
  padding-top: clamp(10px, 1.8vw, 22px);
}

.page-faq .faq-nav {
  margin-bottom: clamp(12px, 2vw, 20px);
}

.page-faq .faq-nav__head {
  margin: 0 0 8px;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ash);
}

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

.page-faq .faq-nav__link {
  display: block;
  white-space: nowrap;
  padding: 8px 13px;
  border: 1px solid var(--edge);
  border-radius: var(--r-sm);
  color: var(--dim);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-faq .faq-nav__link:hover,
.page-faq .faq-nav__link:focus-visible {
  color: var(--ink);
  border-color: var(--accent);
  background: rgba(61, 240, 208, 0.08);
}

/* ---------- 区块 ---------- */
.page-faq .faq-sec {
  padding: clamp(22px, 3.6vw, 42px) 0;
  border-top: 1px solid var(--edge);
  border-radius: var(--r-md);
  scroll-margin-top: 76px;
}

.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: 8px;
}

.page-faq .faq-sec:target {
  background: linear-gradient(180deg, rgba(61, 240, 208, 0.07), rgba(61, 240, 208, 0) 72%);
}

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

.page-faq .faq-sec__title {
  margin: 10px 0 6px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.5vw, 1.85rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--c-chalk);
}

.page-faq .faq-sec__sub {
  margin: 0;
  max-width: 38em;
  color: var(--dim);
  font-size: 0.94rem;
  line-height: 1.75;
}

/* ---------- 三步 ---------- */
.page-faq .step-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 17px;
  background: var(--c-panel);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--r-md);
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-faq .step:hover {
  border-color: var(--accent);
  background: #16233f;
}

.page-faq .step__num {
  font-size: clamp(1.05rem, 2vw, 1.45rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--c-lime);
}

.page-faq .step__title {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-chalk);
}

.page-faq .step__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--dim);
}

/* ---------- 问答卡片 ---------- */
.page-faq .faq-item {
  margin-top: 10px;
  background: var(--c-panel);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--faq-c);
  border-radius: var(--r-md);
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-faq .faq-item--search {
  --faq-c: var(--c-cyan);
}

.page-faq .faq-item--compare {
  --faq-c: var(--c-orange);
}

.page-faq .faq-item--sub {
  --faq-c: var(--c-lime);
}

.page-faq .faq-item--data {
  --faq-c: var(--c-cyan);
}

.page-faq .faq-item--account {
  --faq-c: var(--c-ash);
}

.page-faq .faq-item[open] {
  border-color: var(--faq-c);
  background: #16233f;
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--faq-c);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2212";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -0.005em;
  color: var(--c-chalk);
}

.page-faq .faq-item__a {
  padding: 0 16px 16px 17px;
  color: var(--dim);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
}

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

.page-faq .faq-item__a a,
.page-faq .step__text a,
.page-faq .faq-help__note a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 240, 208, 0.4);
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .step__text a:hover,
.page-faq .faq-help__note a:hover,
.page-faq .faq-item__a a:focus-visible,
.page-faq .step__text a:focus-visible,
.page-faq .faq-help__note a:focus-visible {
  border-color: var(--accent);
  color: var(--c-chalk);
}

.page-faq .mini-steps {
  margin: 0;
  padding-left: 1.5em;
  font-variant-numeric: tabular-nums;
}

.page-faq .mini-steps li {
  margin-bottom: 4px;
}

.page-faq .mini-steps li:last-child {
  margin-bottom: 0;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 20px 0 0;
}

.page-faq .faq-figure--phone {
  max-width: 310px;
}

.page-faq .faq-figure__note {
  margin: 10px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--c-ash);
}

.page-faq .media-frame__cap {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

/* ---------- 订阅区两栏 ---------- */
.page-faq .faq-sub-grid {
  display: grid;
  gap: var(--faq-gap);
}

/* ---------- 求助面板 ---------- */
.page-faq .faq-help {
  padding: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-help__text {
  margin: 0 0 16px;
  max-width: 38em;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--dim);
}

.page-faq .faq-help__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--edge);
}

.page-faq .faq-help__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-help__k {
  flex: 0 0 auto;
  min-width: 3.2em;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-ash);
}

.page-faq .faq-help__v {
  flex: 1 1 12em;
  min-width: 0;
  font-family: var(--f-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-lime);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 16px 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-nav {
    position: sticky;
    top: 28px;
    margin-bottom: 0;
  }

  .page-faq .faq-nav__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    border-left: 1px solid var(--edge);
  }

  .page-faq .faq-nav__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 9px 12px;
  }

  .page-faq .faq-nav__link:hover,
  .page-faq .faq-nav__link:focus-visible {
    background: linear-gradient(90deg, rgba(61, 240, 208, 0.12), rgba(61, 240, 208, 0));
  }

  .page-faq .faq-sub-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .faq-figure--phone {
    max-width: 100%;
  }

  .page-faq .faq-item__a {
    max-width: 44em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__item,
  .page-faq .faq-nav__link,
  .page-faq .step,
  .page-faq .faq-item {
    transition: none;
  }
}