.page-faq {
  --faq-text: #33465f;
  --faq-text-soft: #5c7189;
  --faq-hairline: rgba(11, 29, 58, .12);
  --faq-hairline-strong: rgba(11, 29, 58, .2);
  --faq-rail-w: 15.5rem;
  --faq-card-shadow: 0 1px 0 rgba(11, 29, 58, .05), 0 8px 22px -18px rgba(11, 29, 58, .35);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto;
  height: 78%;
  pointer-events: none;
  background:
    radial-gradient(58% 100% at 76% 0%, rgba(47, 214, 232, .18), transparent 68%),
    radial-gradient(46% 82% at 8% 22%, rgba(92, 255, 196, .1), transparent 70%);
}

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

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(1.6rem, 4.5vw, 2.75rem);
  margin-top: clamp(1.4rem, 4vw, 2.4rem);
}

.page-faq .faq-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: .7rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 7.4vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -.012em;
  color: var(--cloud);
  text-wrap: balance;
}

.page-faq .faq-lead {
  margin: 1.05rem 0 0;
  max-width: 44rem;
  font-size: clamp(.95rem, 2.4vw, 1.06rem);
  line-height: 1.78;
  color: rgba(243, 247, 251, .82);
}

.page-faq .faq-hero-note {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--steel);
}

.page-faq .faq-hero-check {
  padding: 1.1rem 1.15rem 1.3rem;
  border: 1px solid rgba(47, 214, 232, .26);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(19, 42, 74, .9), rgba(11, 29, 58, .62));
}

.page-faq .faq-hero-check-title {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: .95rem;
  letter-spacing: .04em;
  color: var(--cloud);
}

.page-faq .faq-mini-check {
  list-style: none;
  margin: .9rem 0 0;
  padding: 0;
  display: grid;
  gap: .78rem;
}

.page-faq .faq-mini-check li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .62rem;
  align-items: start;
  font-size: .86rem;
  line-height: 1.62;
  color: rgba(243, 247, 251, .86);
}

/* ---------- 勾选方块 ---------- */

.page-faq .faq-tick {
  position: relative;
  display: inline-block;
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: .16rem;
  border: 1.5px solid var(--faq-hairline-strong);
  border-radius: 1px;
  background: linear-gradient(180deg, rgba(47, 214, 232, .16), rgba(47, 214, 232, .02));
}

.page-faq .faq-tick::after {
  content: "";
  position: absolute;
  left: .29rem;
  top: .04rem;
  width: .28rem;
  height: .55rem;
  border-right: 2px solid var(--ink-mid);
  border-bottom: 2px solid var(--ink-mid);
  transform: rotate(40deg);
}

.page-faq .band--deep .faq-tick,
.page-faq .band--abyss .faq-tick {
  border-color: rgba(92, 255, 196, .5);
  background: rgba(92, 255, 196, .1);
}

.page-faq .band--deep .faq-tick::after,
.page-faq .band--abyss .faq-tick::after {
  border-color: var(--mint);
}

/* ---------- 视觉带 ---------- */

.page-faq .faq-visual {
  padding-block: clamp(1.4rem, 3.5vw, 2.35rem);
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(47, 214, 232, .22);
  border-radius: var(--radius);
}

/* ---------- 主体长页 ---------- */

.page-faq .faq-body {
  padding-block: clamp(2.4rem, 6vw, 4.5rem);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-rail {
  padding: 1rem 1.05rem 1.15rem;
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--faq-card-shadow);
}

.page-faq .faq-rail-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: .75rem 0 0;
  padding: 0;
  display: grid;
  gap: .12rem;
}

.page-faq .faq-rail-list a {
  display: block;
  padding: .48rem .6rem .48rem .72rem;
  border-left: 2px solid transparent;
  font-size: .85rem;
  line-height: 1.5;
  color: var(--faq-text);
  text-decoration: none;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  border-left-color: var(--cyan);
  background: var(--cloud-thin);
  color: var(--ink-deep);
}

.page-faq .faq-rail-list a[aria-current="true"] {
  border-left-color: var(--mint);
  color: var(--ink-deep);
  font-weight: 650;
}

.page-faq .faq-rail-note {
  margin: 1rem 0 0;
  padding-top: .85rem;
  border-top: 1px solid var(--faq-hairline);
  font-size: .76rem;
  line-height: 1.65;
  color: var(--faq-text-soft);
}

.page-faq .faq-main {
  display: grid;
  gap: clamp(1.15rem, 3vw, 1.9rem);
}

.page-faq .faq-block {
  padding: clamp(1.15rem, 3.6vw, 2.1rem);
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--faq-card-shadow);
  scroll-margin-top: 6.5rem;
}

.page-faq .faq-block h2 {
  margin: .42rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.32rem, 4.2vw, 1.9rem);
  line-height: 1.16;
  letter-spacing: -.008em;
  color: var(--ink-deep);
}

.page-faq .faq-block-lead {
  margin: .78rem 0 0;
  max-width: 52rem;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--faq-text);
}

.page-faq .faq-block a {
  color: var(--ink-mid);
  text-decoration: underline;
  text-decoration-color: rgba(47, 214, 232, .6);
  text-underline-offset: 3px;
}

.page-faq .faq-block a:hover {
  color: var(--amber-deep);
  text-decoration-color: var(--amber-deep);
}

/* ---------- 检查清单 ---------- */

.page-faq .faq-checklist {
  list-style: none;
  margin: 1.45rem 0 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-faq .faq-check-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .9rem;
  padding: .95rem 1rem 1rem;
  border: 1px solid var(--faq-hairline);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, rgba(217, 246, 251, .55));
}

.page-faq .faq-check-no {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--amber-deep);
  padding-top: .18rem;
}

.page-faq .faq-check-item h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.4;
  color: var(--ink-deep);
}

.page-faq .faq-check-item p {
  margin: .42rem 0 0;
  font-size: .89rem;
  line-height: 1.72;
  color: var(--faq-text);
}

/* ---------- 规则对比表 ---------- */

.page-faq .faq-table-wrap {
  margin-top: 1.45rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-size: .87rem;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: .78rem .92rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.62;
  border-bottom: 1px solid rgba(11, 29, 58, .09);
}

.page-faq .faq-table thead th {
  background: var(--cloud-thin);
  color: var(--ink-deep);
  font-size: .79rem;
  font-weight: 650;
  letter-spacing: .03em;
  white-space: nowrap;
}

.page-faq .faq-table tbody th {
  font-weight: 650;
  color: var(--ink-deep);
  white-space: nowrap;
}

.page-faq .faq-table tbody td {
  color: var(--faq-text);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-folds {
  margin-top: 1.45rem;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-fold {
  overflow: hidden;
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color .2s ease;
}

.page-faq .faq-fold[open] {
  border-color: rgba(47, 214, 232, .55);
}

.page-faq .faq-fold summary {
  position: relative;
  padding: .9rem 2.9rem .9rem 1rem;
  list-style: none;
  cursor: pointer;
  font-size: .94rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-deep);
  background: linear-gradient(180deg, #fff, rgba(217, 246, 251, .5));
}

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

.page-faq .faq-fold summary::after {
  content: "";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  width: .52rem;
  height: .52rem;
  border-right: 2px solid var(--amber-deep);
  border-bottom: 2px solid var(--amber-deep);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .25s ease;
}

.page-faq .faq-fold[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-fold summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-fold-body {
  padding: 0 1rem 1.1rem;
}

.page-faq .faq-fold-body p {
  margin: .6rem 0 0;
  font-size: .88rem;
  line-height: 1.78;
  color: var(--faq-text);
}

.page-faq .faq-fold-body .faq-verdict {
  margin-top: .75rem;
  padding: .6rem .85rem;
  border-left: 3px solid var(--cyan);
  background: rgba(47, 214, 232, .1);
  font-size: .88rem;
  font-weight: 600;
  line-height: 1.62;
  color: var(--ink-deep);
}

/* ---------- 步骤清单 ---------- */

.page-faq .faq-steps {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
  padding: .82rem .95rem .9rem;
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, rgba(243, 247, 251, .7));
}

.page-faq .faq-step-text {
  font-size: .89rem;
  line-height: 1.74;
  color: var(--faq-text);
}

.page-faq .faq-step-text strong {
  display: block;
  margin-bottom: .2rem;
  font-size: .95rem;
  font-weight: 650;
  line-height: 1.5;
  color: var(--ink-deep);
}

/* ---------- 异常反馈 ---------- */

.page-faq .faq-anomaly-grid {
  margin-top: 1.45rem;
  display: grid;
  gap: 1.3rem;
}

.page-faq .faq-anomaly-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-faq .faq-anomaly-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
  padding: .85rem .95rem .9rem;
  border: 1px dashed rgba(199, 126, 27, .42);
  border-radius: var(--radius);
  background: rgba(242, 184, 75, .07);
}

.page-faq .faq-anomaly-no {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--amber-deep);
  padding-top: .18rem;
}

.page-faq .faq-anomaly-list h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 650;
  line-height: 1.45;
  color: var(--ink-deep);
}

.page-faq .faq-anomaly-list p {
  margin: .35rem 0 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--faq-text);
}

.page-faq .faq-anomaly-figure {
  margin: 0;
}

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

.page-faq .faq-anomaly-tail {
  margin: 1.35rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--faq-hairline);
  font-size: .86rem;
  line-height: 1.75;
  color: var(--faq-text-soft);
}

/* ---------- 联络区 ---------- */

.page-faq .faq-support {
  padding-block: clamp(2.4rem, 6vw, 4.5rem);
}

.page-faq .faq-support-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .faq-support-copy h2 {
  margin: .42rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 4.6vw, 2.15rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--cloud);
}

.page-faq .faq-support-copy > p {
  margin: .85rem 0 0;
  max-width: 42rem;
  font-size: .93rem;
  line-height: 1.78;
  color: rgba(243, 247, 251, .8);
}

.page-faq .faq-support-list {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-faq .faq-support-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .65rem;
  align-items: start;
  font-size: .88rem;
  line-height: 1.65;
  color: rgba(243, 247, 251, .88);
}

.page-faq .faq-support-note {
  margin: 1.35rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(143, 166, 196, .22);
  font-size: .8rem;
  line-height: 1.72;
  color: var(--steel);
}

.page-faq .faq-support-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(47, 214, 232, .45);
  text-underline-offset: 3px;
}

.page-faq .faq-support-card {
  padding: 1.2rem 1.2rem 1.35rem;
  border: 1px solid rgba(47, 214, 232, .3);
  border-top: 3px solid var(--mint);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(19, 42, 74, .95), rgba(7, 17, 31, .85));
}

.page-faq .faq-support-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-support-mail-row {
  margin: .85rem 0 0;
}

.page-faq .faq-support-mail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(.86rem, 3vw, 1.02rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--mint);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px dashed rgba(92, 255, 196, .5);
}

.page-faq .faq-support-mail:hover {
  color: var(--cloud);
  border-bottom-color: var(--cloud);
}

.page-faq .faq-support-meta {
  margin: .75rem 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-support-facts {
  margin: 1.2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(143, 166, 196, .22);
  display: grid;
  gap: .8rem;
}

.page-faq .faq-support-facts dt {
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--steel);
}

.page-faq .faq-support-facts dd {
  margin: .22rem 0 0;
  font-size: .85rem;
  line-height: 1.65;
  color: rgba(243, 247, 251, .88);
}

.page-faq .faq-support-tel,
.page-faq .faq-support-icp {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-faq .faq-support-btn {
  margin-top: 1.35rem;
  width: 100%;
  text-align: center;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-anomaly-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-support-btn {
    width: auto;
    align-self: flex-start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-faq .faq-hero-check {
    padding: 1.25rem 1.3rem 1.45rem;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 6.5rem;
    max-height: calc(100vh - 8rem);
    overflow-y: auto;
  }

  .page-faq .faq-rail-list a {
    font-size: .82rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-fold summary::after,
  .page-faq .faq-rail-list a {
    transition: none;
  }
}