.page-faq {
  --faq-axis: repeating-linear-gradient(90deg, rgba(138, 151, 168, .44) 0 1px, transparent 1px 12px);
  --faq-axis-v: repeating-linear-gradient(180deg, rgba(138, 151, 168, .44) 0 1px, transparent 1px 12px);
  --faq-radius: 26px;
  background: var(--deep);
  color: var(--ice);
  overflow-x: clip;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-top {
  position: relative;
  padding: 22px 0 44px;
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(0, 224, 198, .16), transparent 62%),
    radial-gradient(90% 70% at 4% 100%, rgba(255, 107, 26, .12), transparent 60%),
    var(--deep);
}

.page-faq .faq-hero {
  position: relative;
  margin-top: 18px;
  padding: 30px 20px 26px;
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  background: linear-gradient(180deg, rgba(18, 58, 107, .58), rgba(10, 31, 60, .34));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 14px;
  right: 14px;
  height: 6px;
  background: var(--faq-axis);
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 58px;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 2px, transparent 2px 9px);
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 7.4vw, 62px);
  font-weight: 250;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: #fff;
}

.page-faq .faq-hero h1 em {
  display: block;
  font-style: normal;
  color: var(--cyan);
}

.page-faq .faq-lede {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 247, 251, .8);
}

.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-tabs a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: .06em;
  color: rgba(244, 247, 251, .84);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .faq-tabs a:hover,
.page-faq .faq-tabs a:focus-visible {
  border-color: var(--cyan);
  color: #fff;
}

.page-faq .faq-tabs a[aria-current="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--deep);
  font-weight: 600;
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding: 52px 0;
  scroll-margin-top: 96px;
}

.page-faq .faq-section--tactic {
  background: linear-gradient(180deg, var(--tactic), #0d2c53);
}

.page-faq .faq-section--ice {
  background: var(--ice);
  color: var(--ink);
}

.page-faq .faq-section--ice .section-title {
  color: var(--ink);
}

.page-faq .faq-section--ice .section-index,
.page-faq .faq-section--ice .index {
  color: #5c6b7d;
}

.page-faq .faq-lead,
.page-faq .faq-afterword {
  margin: 22px 0 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 247, 251, .84);
}

.page-faq .faq-afterword {
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  color: rgba(0, 224, 198, .92);
}

/* ---------- 展开式问答 ---------- */
.page-faq .qa-list {
  margin-top: 26px;
  border-top: 1px solid var(--line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 20px;
  gap: 10px;
  align-items: start;
  min-height: 56px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

.page-faq .qa > summary::-webkit-details-marker,
.page-faq .qa > summary::marker {
  display: none;
  content: "";
}

.page-faq .qa > summary:hover .qa-q,
.page-faq .qa > summary:focus-visible .qa-q {
  color: var(--cyan);
}

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 8px;
}

.page-faq .qa-num {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .qa-q {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: #fff;
  transition: color .2s var(--ease);
}

.page-faq .qa-arrow {
  justify-self: end;
  width: 9px;
  height: 9px;
  margin-top: 6px;
  border-right: 1.5px solid var(--orange);
  border-bottom: 1.5px solid var(--orange);
  transform: rotate(45deg);
  transition: transform .26s var(--ease);
}

.page-faq .qa[open] .qa-arrow {
  transform: rotate(225deg);
}

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

.page-faq .qa-a p {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: rgba(244, 247, 251, .76);
}

.page-faq .faq-figure {
  margin: 6px 0 22px;
  aspect-ratio: 10 / 7;
}

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

@media (min-width: 900px) {
  .page-faq .qa > summary {
    grid-template-columns: 46px minmax(0, 1fr) 22px;
    gap: 16px;
  }
  .page-faq .qa-a {
    padding-left: 62px;
  }
}

/* ---------- 越位对比双栏 ---------- */
.page-faq .delta {
  display: grid;
  margin-top: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: rgba(10, 31, 60, .55);
}

.page-faq .delta-col {
  padding: 22px 20px 24px;
}

.page-faq .delta-col--before {
  background: rgba(10, 31, 60, .5);
}

.page-faq .delta-col--after {
  background: rgba(0, 224, 198, .08);
}

.page-faq .delta-col .index {
  color: var(--scale);
}

.page-faq .delta-col--after .index {
  color: var(--cyan);
}

.page-faq .delta-col ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .delta-col li {
  position: relative;
  padding: 9px 10px 9px 18px;
  border-radius: var(--r-sm);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(244, 247, 251, .8);
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .delta-col li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 17px;
  width: 8px;
  height: 1px;
  background: var(--scale);
}

.page-faq .delta-col--after li::before {
  background: var(--cyan);
  width: 12px;
}

.page-faq .delta-col li:hover {
  background: rgba(255, 107, 26, .12);
  color: #fff;
}

.page-faq .delta-axis {
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 1px, transparent 1px 10px);
  opacity: .5;
}

@media (min-width: 860px) {
  .page-faq .delta {
    grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr);
  }
  .page-faq .delta-col {
    padding: 26px 24px 30px;
  }
  .page-faq .delta-axis {
    height: auto;
    background: repeating-linear-gradient(180deg, var(--cyan) 0 1px, transparent 1px 10px);
  }
}

/* ---------- 客户端分组问答 ---------- */
.page-faq .qgroups {
  margin-top: 24px;
}

.page-faq .qgroup {
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid rgba(11, 17, 24, .16);
}

.page-faq .qgroup:first-child {
  margin-top: 0;
}

.page-faq .qgroup-title {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--cyan-data);
}

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

.page-faq .qrow {
  display: grid;
  gap: 6px;
  padding: 14px 10px 14px 12px;
  border-bottom: 1px dashed rgba(11, 17, 24, .14);
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qrow:hover {
  background: rgba(27, 111, 203, .08);
  border-left-color: var(--orange);
}

.page-faq .qrow dt {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .qrow dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(11, 17, 24, .74);
}

.page-faq .qlist--dark .qrow {
  border-bottom-color: rgba(138, 151, 168, .22);
}

.page-faq .qlist--dark .qrow:hover {
  background: rgba(0, 224, 198, .08);
  border-left-color: var(--cyan);
}

.page-faq .qlist--dark .qrow dt {
  color: #fff;
}

.page-faq .qlist--dark .qrow dd {
  color: rgba(244, 247, 251, .76);
}

/* ---------- 家庭观赛小卡 ---------- */
.page-faq .family-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .family-card {
  padding: 24px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius) var(--faq-radius) var(--faq-radius) 10px;
  background: linear-gradient(160deg, rgba(18, 58, 107, .92), rgba(10, 31, 60, .82));
}

.page-faq .family-card:nth-child(2) {
  border-radius: var(--faq-radius) 10px var(--faq-radius) var(--faq-radius);
  background: linear-gradient(160deg, rgba(27, 111, 203, .32), rgba(10, 31, 60, .86));
}

.page-faq .family-card:nth-child(3) {
  border-radius: var(--faq-radius) var(--faq-radius) 10px var(--faq-radius);
  background: linear-gradient(160deg, rgba(0, 224, 198, .16), rgba(10, 31, 60, .86));
}

.page-faq .family-card .index {
  color: var(--cyan);
}

.page-faq .family-card h3 {
  margin: 10px 0 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  color: #fff;
}

.page-faq .family-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 247, 251, .78);
}

@media (min-width: 760px) {
  .page-faq .family-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 企业对接 ---------- */
.page-faq .biz-wrap {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-faq .biz-card {
  padding: 26px 22px 24px;
  border: 1px solid rgba(0, 224, 198, .42);
  border-radius: var(--faq-radius);
  background: linear-gradient(165deg, rgba(0, 224, 198, .14), rgba(10, 31, 60, .72));
}

.page-faq .biz-card h3 {
  margin: 14px 0 0;
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -.01em;
  color: #fff;
}

.page-faq .biz-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 251, .78);
}

.page-faq .biz-card .btn {
  margin-top: 18px;
}

.page-faq .biz-note {
  font-size: 13px;
  color: var(--scale);
}

@media (min-width: 960px) {
  .page-faq .biz-wrap {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 38px;
    align-items: start;
  }
  .page-faq .biz-side {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 收束区块 ---------- */
.page-faq .faq-close {
  padding: 56px 0 68px;
  text-align: center;
}

.page-faq .close-rule {
  height: 1px;
  background: var(--faq-axis);
  opacity: .75;
}

.page-faq .close-rule--flip {
  margin-top: 34px;
}

.page-faq .close-body {
  max-width: 620px;
  margin: 0 auto;
  padding: 30px 0 0;
}

.page-faq .close-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 5.4vw, 38px);
  font-weight: 250;
  line-height: 1.25;
  color: #fff;
}

.page-faq .close-lede {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(244, 247, 251, .78);
}

.page-faq .close-meta {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 20px 0 0;
  border-top: 1px dashed var(--line-strong);
  list-style: none;
}

.page-faq .close-meta li {
  display: grid;
  gap: 4px;
  justify-items: center;
  font-size: 15px;
}

.page-faq .close-meta a,
.page-faq .close-meta span + span {
  color: var(--cyan);
  text-decoration: none;
  word-break: break-word;
}

.page-faq .close-meta a:hover {
  color: var(--orange);
}

.page-faq .faq-close .btn {
  margin-top: 26px;
}

@media (min-width: 700px) {
  .page-faq .close-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .page-faq .close-meta li {
    justify-items: start;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-arrow,
  .page-faq .qrow,
  .page-faq .delta-col li,
  .page-faq .faq-tabs a {
    transition: none;
  }
}