.page-faq {
  --faq-row-bg: linear-gradient(148deg, rgba(14, 22, 48, .94) 0%, rgba(10, 16, 36, .72) 100%);
  --faq-pad: clamp(16px, 2.6vw, 26px);
  --faq-gap: clamp(22px, 3.4vw, 40px);
  background: var(--ink-900);
  color: var(--text);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .faq-top {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.6vw, 52px) 0 clamp(34px, 5vw, 62px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -8%;
  right: -14%;
  width: min(76vw, 780px);
  height: 116%;
  background: linear-gradient(146deg, rgba(255, 122, 47, .22) 0%, rgba(33, 230, 193, .16) 56%, rgba(7, 11, 26, 0) 84%);
  clip-path: polygon(24% 0, 100% 0, 100% 72%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(29, 42, 74, .85) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .55;
  -webkit-mask-image: linear-gradient(202deg, #000 0%, rgba(0, 0, 0, 0) 72%);
  mask-image: linear-gradient(202deg, #000 0%, rgba(0, 0, 0, 0) 72%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--peak);
  max-width: 19ch;
}

.page-faq h1 .hl {
  color: var(--cyan);
}

.page-faq .faq-hero-main .lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 56ch;
}

.page-faq .faq-jump {
  margin-top: clamp(20px, 3vw, 30px);
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump .chip {
  text-decoration: none;
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .faq-hero-side {
  padding: clamp(20px, 3vw, 30px);
  align-self: end;
}

.page-faq .side-stats {
  display: grid;
  gap: 16px;
  margin: 16px 0 14px;
}

.page-faq .side-stats .stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-700);
}

.page-faq .side-stats .stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .side-stats .stat-num {
  font-family: var(--font-data);
  font-weight: 600;
  font-size: clamp(24px, 4vw, 32px);
  line-height: 1;
  color: var(--orange-soft);
  font-variant-numeric: tabular-nums;
  min-width: 3.2ch;
}

.page-faq .side-stats .stat-key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--text-dim);
}

/* ---------- 章节骨架 ---------- */
.page-faq .slant-band {
  margin: 0;
}

.page-faq .faq-block {
  position: relative;
  padding: clamp(32px, 5vw, 60px) 0;
}

.page-faq .faq-block .section-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-block h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--peak);
}

.page-faq .block-lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-split {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .qa-col {
  display: grid;
  gap: 12px;
  align-content: start;
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  position: relative;
  background: var(--faq-row-bg);
  border: 1px solid var(--ink-700);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-faq .qa::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--ink-700);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(33, 230, 193, .38);
}

.page-faq .qa[open]::after {
  background: var(--away-grad);
  box-shadow: 0 0 22px rgba(33, 230, 193, .5);
}

.page-faq .qa summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: var(--faq-pad);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-faq .qa-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-dim);
  padding-top: 5px;
  transition: color .3s var(--ease);
  font-variant-numeric: tabular-nums;
}

.page-faq .qa[open] .qa-num {
  color: var(--cyan);
}

.page-faq .qa-head {
  display: grid;
  gap: 8px;
  justify-items: start;
}

.page-faq .qa-q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.3vw, 19px);
  line-height: 1.48;
  color: var(--text);
  transition: color .3s var(--ease);
}

.page-faq .qa[open] .qa-q {
  color: var(--peak);
}

.page-faq .qa-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan-soft);
  border: 1px solid rgba(33, 230, 193, .34);
  background: rgba(33, 230, 193, .07);
}

.page-faq .qa-body {
  padding: 0 var(--faq-pad) calc(var(--faq-pad) + 2px);
}

.page-faq .qa-body p {
  margin: 0;
  line-height: 1.78;
  color: var(--text);
}

.page-faq .qa-note {
  margin-top: 14px !important;
  padding: 10px 0 10px 14px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .qa-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 230, 193, .45);
}

.page-faq .qa-body a:hover {
  color: var(--peak);
  border-bottom-color: var(--orange);
}

/* ---------- 步骤轨道 ---------- */
.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  position: relative;
  margin: 0;
  padding: 0 0 0 32px;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 12px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, rgba(33, 230, 193, .62), rgba(29, 42, 74, .9));
}

.page-faq .steps li {
  counter-increment: faqstep;
  position: relative;
  padding-bottom: 14px;
  line-height: 1.75;
  color: var(--text);
}

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

.page-faq .steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: -32px;
  top: 3px;
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(33, 230, 193, .6);
  background: var(--ink-800);
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 11px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* ---------- 权限与指标列表 ---------- */
.page-faq .perm-list,
.page-faq .metric-list,
.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .perm-item {
  display: grid;
  gap: 6px;
  padding: 13px 16px;
  background: rgba(29, 42, 74, .34);
  border-left: 2px solid var(--ink-700);
  line-height: 1.72;
}

.page-faq .perm-item.is-sub {
  border-left-color: var(--orange);
  background: linear-gradient(100deg, rgba(255, 122, 47, .1), rgba(14, 22, 48, .34) 62%);
}

.page-faq .perm-badge {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--text-dim);
}

.page-faq .perm-item.is-sub .perm-badge {
  color: var(--orange-soft);
}

.page-faq .metric-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(29, 42, 74, .9);
}

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

.page-faq .metric-key {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
}

.page-faq .metric-val {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 筛选示例胶囊 ---------- */
.page-faq .sample-chips {
  margin-top: 16px;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .sample-chips .chip {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
}

/* ---------- 图框 ---------- */
.page-faq .faq-visual {
  position: relative;
  margin: 0;
}

.page-faq .faq-visual .fig-cap {
  font-size: 12px;
}

.page-faq .fig-tall {
  aspect-ratio: 3 / 4;
}

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

/* ---------- 联系卡 ---------- */
.page-faq .faq-block--last {
  padding-bottom: 0;
}

.page-faq .support-grid {
  display: grid;
  gap: 14px;
}

.page-faq .support-card {
  padding: clamp(20px, 2.8vw, 28px);
}

.page-faq .support-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .support-value {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--peak);
  word-break: break-all;
}

.page-faq .support-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .prep-list {
  gap: 8px;
}

.page-faq .prep-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.7;
  color: var(--text);
}

.page-faq .prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-faq .support-card--biz {
  background: linear-gradient(120deg, rgba(255, 122, 47, .12), rgba(14, 22, 48, .86) 58%);
  border-color: rgba(255, 122, 47, .3);
}

.page-faq .support-actions {
  margin-top: 18px;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .support-actions .btn {
  text-decoration: none;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-faq .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-card--wide {
    grid-column: 1 / -1;
  }

  .page-faq .perm-item {
    grid-template-columns: 72px 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-faq .faq-split {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-faq .faq-split--flip {
    grid-template-columns: 5fr 7fr;
  }

  .page-faq .faq-split--flip .qa-col {
    order: 2;
  }

  .page-faq .faq-split--flip .faq-visual {
    order: 1;
  }

  .page-faq .faq-visual {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

  .page-faq .faq-block .section-head {
    grid-template-columns: 1fr .7fr;
  }
}

@media (min-width: 1180px) {
  .page-faq .support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .support-card--wide {
    grid-column: span 1;
  }

  .page-faq .support-card--biz {
    grid-column: span 2;
  }
}

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